US1681078A - Fabric drier - Google Patents

Description

Aug. 14, 192s. 1,681,078

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T. ALLsoP ET AL FABRIC DRIER Filed April l5, 1924 4 Sheets-Sheet 4 PI (T lIZ l Patented Aug. 14, 1928.

UNITED STATES- PATENT.. ori-ica THOMAS ALLSOP AND WAL'IER SIBSON. PHILADELPHIA, PENNSYLVANIA, AS- SIGNOBS T THE PHILADELPHIA DRYING MACHINERY COMPANY, 0l' PHILADEL- PHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

FABRIC DRIEB.

Application led April 15, 1824. Serial No. 706,850.

This invention relates to fabric driers, and it has more particular reference to machines adapted for treat-ing knitted articles-such as hosiery for example-wliich are placed upon forms pivotally mounted on a rotary carrier adapted to travel through a drying enclosure wlieieby evaporation of moisture is thoroughly effected, with incidental shaplll ing of said articles prior to being stripped from the forms.

Hitherto, various types and combinations of instrumeiitalities have been employed for concurrent-ly drying and shaping :nitted articles with a more or less degree of success, but all have been comparatively expensive to construct as well as costly in operation. Our invention,'however, aims to overcome-prevailing trade and other objections by providing an organization in which the articles to be dried, after being boarded upon suitable forms, are automatically and intermit tently travelled through the drying enclosure, and similarly discharged therefrom for stripping.

Another object of this invention 1s the provision of a novel means whereby knitted articles while being dried are concurrently shaped in a manner acceptable to the trade. Further objects of this invention are to provide an organization of the foregoing character embodying` improved whereby the operations of boarding and stripping are more expeditiously effected; to circulate the heating medium in a manner conducive of maximum efliciency; to increase the output capacity; and to provide a comparatively cheap and compact drying machine especially useful for drying and shaping knitted articles.

Vith the foregoing and other objects in view as later on noted-or which will be apparent from the following` description-our invention consists in certain novel features of construction, combinations and arrangements of parts hereinafter fully described, illustrated by the accompanying drawings, and tersely featured in the appended claims.A `While the following description is for a clear understandingvof the manner in which our invention may be carried into practical eil'ect, it is to be explicitly understood that various changes in the form, proportions, Elige and. millor details of Construction may means,

be made within the scope of the claims, withi out departin from the spirit, or sacrificing any of the a vantages, 'of our said invention.

Referring to the drawings Fig. I is a view in elevation of a drying machine convenientlv embodying one pracconvenient manner of removably supporting y the several forms hereinafter more particularly referred to.

Fig. VI is a fragmentary detail plan of theiform-carrying instrumentality or spider; an

Fig. VII is a similar view of a modified, orbuilt up, type of spider.

In the typified embodiment of our invention illustrated-which is solely by way of example-.similar characters of reference designate corresponding parts in all the views.

The drying machine illustrated is particularly adapted as a hoisery drier, and it will be observed that it comprises a cylindrical enclosure, comprehensively designated by the numeral 8, which is supported upon an appropriate framework of standard section Verticals 9-9,l braced by a transversely located annulus 10 of angular cross-section, at an elevation from the ground to accominodate cert-ain instrumentalities hereinafter specifically described. Thermo-insulated. sheet metal panels are secured to the aforesaid framework to constitute the surrounding wall `11-or said wall may be made up as a unit in the well known manner; while it is fitted with a roof 12, and bottom' 13, in accordance with 'conventional practice.

Concentric with and upon the roof 12 there is mounted an invert funnel-shaped dome or crown 14, provided with an exhaust outlet 15 under control of a butterfiy damper 16, the extended axis 17 whereof is 'ournailed in a bearlng standard 18, and fitted with a rock-arm 19 having depending drawrods 20, 20.,-Fig. I-adapted for manipulation in the well known way, to vary the capacity of the exhaust outlet later on againreferred to. The funnel-shaped dome or crown 14 and valve exhaust outlet 15, respectively, serve to provide clearance for certain mechanisms hereafter described, and variahly control thc flow of fresh air through the enclosure 8 by regulating the quantity of moisture laden air exhausted. Obviously, means may be provided in connection with the draw- rods 20, 20 for` arresting same at any predetermined position so as to maintain any desired angular position of the damper 1G, between the fully open and closed positions. as will be readily understood without further explanation or descriptive illustration.

Conveniently supported co-axially within the cylindrical enclosure 8. as by depending angles 2l secured within the dome or crown 14, is a cylindrical shellhereinafter termed the air-duct 22, the upper end whereof is partially closed in to afford a top 23 provided with an opening in which is located a fan 24. It is well to here note that the fan 24 rotates in a horizontal plane, with the shaft 25, thereof, journalled in a vertical bearing 26 conveniently supported by transverse angles 27, 27 secured to the underside of the enclosure roof 12 aforesaid. Rotary motion is imparted to the fan 24 by means of a miter gear 28 secured to the shaft 25, meshing with a eomplernental gear 29 at the inner end of a radially disposed countershaft 30 journalled in foot-step hearings 31, 3l mounted on the aforesaid roof 12 and transverse angles 27. 27. The counter-shaft 30 is in turn rotated through av belt drive 32 from any convenient overhead line shaftnot shown and it is also provided at its outer end with a cone pulley 33 for a purpose later on explained.

Referring more particularly to Fig. III, it will be seen that the air-duct 22 is located in spaced relation with respect to the roof 12 of the drying enclosure 8, thereby affording ample clearance for the free circulation of air in the manner indicated by the arrows on said figure.

Disposed concentric with the air-duct 22 are headers 34, 34 connected by a vertical series of pipes 35, 35 through which heating medium is circulated in the well known way; a supply connection being indicated at 36- Fig. I-and fitted with an appropriate stop valve 37, while a return or drip is shown at 38.

The aforesaid drying enclosure bottom 13- as best seen from Fig. III-eomprises an outer annular portion 13, and an inner concentric disk portion 13b which is securely attached by bolts 39 (Fig. IV)-for exampleto a, rotatable bearer 40 conveniently splined on a stud shaft 41,]'ournalled in abearing lit, supported on paralleled transverse angles 43, in turn rigidly secured to the underside of a channeled track 44, the purpose whereof ii'ill-hereafterbe fully set forth. Interiuediate the rotatable bearer 40 and up er end of the bearing 42-and cottered to t ie stud shaft 41-tl1ere is located a radially armed spider 45 to which the article carrying forms 46 are pivoted by means of supporting arms 47 and stud pins 48. This spider 45, as best understood from an examination of Figs. lV-VI, may comprise a unitary structure reinforced by ribs 49, which is formed with a series of integral arms 5() radially projecting therefrom at equal intervals of ten dereesfor example. These arms 50 are reinforced by surrounding flanges 5l and spur ribs 52 as well as provided at their free ends with a boss 53 affording a journal bearing for the aforementioned stud pins 48. At this juncture it is well to note that the supporting arms 47-as best seen by Fig. V-are conveniently of channel cross-section and upwardly directed undulatory configuration with the lower end fashioned to afford a Substantial boss 54 for secure connection to the upper part of the stud pins 48. Integral with the outer upper end of the supporting arms 47 there is provided a flange 55sonie what inclined over from the vertical-that constitutes a seat for the article-carrying forms 46 which are each clamped thereto by a hinged leaf member 5G and bolts 57.

Attached by the bolts 57 to the flanges 55 and leaf members 56 are sheet metal angles 58, 59 respectively which afford closure for the space (iO-Fig. lll-interiirediate the annular part 13 and disk portion 13", of the drying enclosure bottom '13, whereby said enclosure is substantially sealed against wastage of the drying medium and the escape of noxious moisture-laden air except as otherwise directed. lt is to he particularly noted that the angle 5S is disposed in a plane lll coinciding with the lower fare of the lateral flange of the angle 59 for a purpose later on set forth.

In some cases it may he deemed desirable that the spider l5 should he a builtiip (instead of being an integral) structure whereby provision is made for varying the capacity of the machine, as well as to accommodate article-supporting forms of different widths and styles. To this end, and as will he best al'ipreciated hy reference to Fig. VH, the spider 45 embodies a central portion (il having a flanged periphery (S2, and radial bracing ribs 63. To the flanged periphery 62 we removably attach Outrigger arms 64 of channel cross-section having end bosses 65 to which' the form supporting arms 47 are pivotally connected, as hereinhefore explained. Thus it will be readily apparent that the intervals between the outrigger arms 64 may be varied as desired, hence further explanation is deemed unnecessary.

The means for rotating the spider and enclosure bottom portion 13" simultanemlsly to ell'ect progression of the article-carrying forms 46 intermittently through the enclosure or drying chamber 8 comprises a crown gear 66 rigidly attached at the lower end of the stud shaft41. Adapted to actuate the crown gear 66 is a single-tooth pinion 67 for example) at one end of atransverse shaft 68 journalled in spaced bearings 69, 69, supported by cross beams or angles 70, 70, inl turn attached to the hereinbefore referred to annulus or framework bracing member 10. Intermediate the bearings 69, 69 we spline to the shaft 68 a worm-wheel 7l that meshes with a worm 72 on a transverse shaft 73 journalled in bearings 74, and adapted to be driven, at different speeds, through the instrumentality of a stepped pulley 75 and belt 76 from the cone pulley 33 on the counter-shaft 30. Suitable means such as a dog-not shownor the like,- may be associated with the crown gear 66 to prevent back motion; and, instead-of employing said crown gear and single-tooth pinion, we may substitute a cam and pawl device to impart intermittent rotation to the spider 45, as will be readily comprehended by those conversant with the art without illustration or further explanation.

To afford ingress and egress for the article-carrying forms 46 into and out of the enclosure 8 respectively, we provide the latter with spaced vertical openings 77, 77', (Fig. IV) in the surrounding wall 11 thereof, said openings being of sufficient dimensions to ensure free passage of the forms 46 without the articles carried fouling the edges thereof.

Referring once again to the rotatable bottom portion 13b of the enclosure or drying chamber 8, it will be best seen from Figs. II and IVthat the same is fashioned around i ts peripheral edge with a series of teeth 78 in number equal to that of the article supporting forms 46 included in the drying assemblage. These teeth 78 are of somewhat saw-like configuration, that is to say they are fashioned with an arcuate edge 79 -Fig. IV-with which engages a portion of the complcmentarily curved edge of the lateral flange of the angles 59 attached to each form-supporting arm 47; and an oblique straight edge 80 that engages the inner aligned edges of the clamped together form supporting assemblage components 59, 56 and 55. As best shown in Fig. IV

, it will be remarked that, when the articlecarrying forms 46A are traversing the drying enclosure 8, the angles 58, 59 are moved into slight overlapping relation-as lndicated at m-thereby effecting a somewhat Venetianshnttcr-like closurel of the space 60. It is also noteworthy that the angle 58 is in stepped planar relation with respect to the lateral iiange of the angle 59 in order to clear the f ree ends 8l, 82 of the annular bottom portion 13 This annular bottom portion 13" is interrupted to affordin conjunction with a segmental plateV .83-interspaees 84, 85 that permit swinging of the article-supportlng forms 46 outA of, and into, the enclosure 8 through the vertical openings 77, 77,'in a manner and by the means now to be described. 'I he segmental plate 83 it will benoted functions to close in the major interval between the ends 81, 82, and that it overlaps the intermediate teeth 7 8.

.Securely keyedor otherwise fixed--to the lower end of each stud pin 48 is what may be termed a trip-block 86, of somewhat rectangular configuration in plan but provided with cam portions or laterally projecting teeth a, b, c and d, at the angular lpoints thereof. These trip-blocks 86 are of appropriate size to freely traverse the channeled track 44, as will be best understood on reference to Figs. III and IV, and they are functional to effect swinging movement of the supporting arms 47 by cooperation with stops or obstructions, 87, 88, 89 and 90 in a manner best appreciated from the following brief description of the operation -of our novel type of fab-rie drier.

Assuming the drier is, as illustrated, adapted for drying hosiery, and that the spider 45 is rotatable in a counter-clockwise direction, it will be bestunderstood from Fig. IV that, as said spider is revolved with an intermittent movement (as hercinbefore described) when a. form 46 approaches the stripper operative-who is stationed near thel vertical opening 77-thc associated trip-block 86 will encounter the first stop or obstruction 87. As the tooth or cam portion a strikes and rides over the stop or obstruction 87-thereby imparting a quarter-turn to the form supporting arm 47, the second tooth b-will be brought into contact with the second stop 88, whereby said arm is swung a further quarter-turn out-- wardly through the egress opening 77 into the position designated A on Fig. IV. In this position the hose is stripped from the form 46 in the well known way. Upon the next intermittent movement of the spider 45--brought about through the instrumentality of the single-tooth pinion 67 and crowngear 66-the supporting arm v47 is laterally swung into the, position designated B by the tooth d on its trip-block 86 engaging the third stop or obstruction 89. At this juncture it is well to note,- that the inner wall of the channeled track 44 is cut away intermediate the points 91, 92 to facilitate the turning movements of the trip-block 86 and associated arm 47, just described.

` The succeeding intermittent movement of the spider 45, merely transfers the stripped form 46 without any turning motion of the arm 47 to the position designated C where it is again clothed with a wet hose by the boarder-stationed thereatF-in the well known way. The following intermittent movement of the spider carries the clothed form 46 into the position marked D, by the tooth c of the trip-block 86 engaging and riding over the fourth stop or obstruction 90, Whereafter it is guided into the position E (or that which it retains during 'transit through the enclosure 8) by its angle piece 59 registering with a radially aligning tooth 78 on the inner rotary bottom-portion 13b of the enclosure 8. Obviously the progressive course of the several clothed forms 46 through the drying enclosure 8 will be readily understood without further explanation, while it will be similarly apparent that each successive form 46 is subjected to the movements above described intermediate the positions marked E on Fig. IV. Incidentally the inner wall of the channeled track 44, is cut away between the points 93, 94 for a like purpose to that referred to in connection with the points 91, 92.

From the foregoing brief summary of the sequence of movements involved. it is thought that the advantages and simplicity of our novel fabric drier will be thoroughly appreciated without further description, but amongst other things we desire to direct attention to the manner in which the articlecarrying forms 46 are disposed at an inclination to the vertical, thereby affording greater ease for the operator to remove the dried articles than would obtain were` said forms located pcrpendicularly. Further, our novel clamps 55, 56 provide a simple means whereby forms of different configuration and sizes may be quickly substituted whenever desired. Still further the heating coils 34, 35 may be located outside the path of travel of the forms 46, or intermediate them and the drying chamber 'all' ll. Again, instead of the inner bottom portion 13b being adapted for rotation, it may be made stationary; in which case the teeth 78 will be dispensed with, whereupon the form clamping device angles 58, 59 would be progressed around the space with intervening small triangular openings of con'iplementary area. to said teeth, as will be quite obvious from the preceding descriptive matter; or, they will be suitably configured to overlap and close in said space.

Although we have described our invention in considerable detail, it is to be explicitly understood that the same is not limited thereby, further than as indicated by the appended claims, for the apparent reason our present invention may be embodied in various other forms without de arting therefrom, or sacrificing any of its a vantages.

Having thus described our invention what We claim is 1. A fabric drier including an annular enclosure through which the articles to be dried are advanced, means intermittently conveying a series of vertically pivoted formsupporting members through said enclosure, and means for laterally swinging said members counter-and-clockwise by substantially equal degrees about their pivots for presentation exteriorly of the enclosure to effect stripping and replacement of the articles.

2. A fabric drier comprising an enclosure, means intermittently transporting a series of vcrtically-pivoted form-supporting arms through said enclosure with capacity for lateral swinging counter-and-clockwise by equal stages to effect egress and ingress at fixed stations, means affording a passage within the enclosure, means for circulating a drying medium longitudinally through and externally of said passage, and means for heating the drying medium.

3. A fabric drier comprising a cylindrical enclosure, means for intermittently advancing a series of form-supporting arms through said enclosure with capacity for swinging counter-and-clockwise by ninety-degree stages to effect egress and ingress at fixed stations, means affording a passage wholly within and concentric to the enclosure, and means f'or circulating a drying medium longitudinally through and externally of' said passage.

4. A fabric drier comprising a cylindrical enclosure, means for intermittently advancing a series of form-supporting arms through sald enclosure with capacity for counter-audclockwisc swinging by ninety-degree stages with a non-swingable interval to eflect egress and ingress at fixed stations, means aflording a passage wholly within and concentric to the enclosure, means for circulating a drying medium longitudinally through and externally of said passage, and means for heating the drying medium.

5. A fabric drier comprising a cylindrical enclosure, means for intermittently advancing a series of form-supporting arms through the enclosure with capacity for progressive swinging egress and ingress at fixed stations, means affording a passage wholly within and concentric to the enclosure, means for circulating a drying medium longitudinally through and externally about said passage., and means for heating the drying medium, said heating means being arranged intermediate the exterior surface of the aforesaid passage and the form-supporting arms.

6. A drying machine including an annular enclosure through which the articles to be dried are advanced; means for intermittently moving a series of vertically-pivoted form-supporting arms through t e enclosure; and means operative through motion derived from such advancement to swing said arms laterally counter-and-clockwise, by positive stages, successively about their pivots for presentation exteriorl of the enclosure to permit strip-ping an replacement o the articles.

A d ing machinecomprising a cylindrical enc osure embodying an annular passage, means or intermittently advancing a series of verticallyivoted form-supporting arms through said enclosure with capacity for laterall swinging counter-andclockwise by equal egrees with a non-swinging interval to e'ect egress and ingress respectively at definite stations, and means for circulating a drying medium longitudinally throu h and externally of said passage.

8. drying machine comprising a cylindrical enclosure having a funnel-shaped dome at one end thereof for the exhaust of air, means for intermittently progressing a series of form-supporting arms through the enclosure with capacity for lateral swinging egress and ingress at definite stat-ions, means affording a passage wholly within and concentric to the enclosure, means for circulating a drying medium longitudinally through and externally of said passage, and means for heating the drying medium.

9. A drying machinecomprising a cylindrical enclosure vhaving a funnel-shaped dome and exhaust outlet provided with a damper control, means for intermittently progressing a series of form supporting arms through said enclosure with capacity for lateral swinging egrees and ingress at detinite stations, means affording a passage wholly Within and concentric to the enclosure, means for circulating a drying medium lon itudinally' through and externally of sai passage with looped directional flow, and means for heating the drying medium.

10. A dr ing machine comprising a cylindrical enclosure having a funnel-shaped dome and exhaust outletprovided with a damper control, means for intermittently progressing a series of form-supporting arms through said enclosure with capacity for lateral swinging egress and ingress at definite stations, a conduit supported in spaced relation wholly within and concentric to the cylindric enclosure, means for circ-ulating a drying lnedium longitudinally through and externally of said conduit with looped directional flow, and means intermediate the enclosure Wall and conduit for heating the drying medium.

11. A drying machine comprising a cylindrical enclosure having a funnel-shaped dome provided with a damper control, means for intermittently progressing a series of form-supporting arms through said enclosure with capacity for lateral swinging e ress and ingress at definite stations, a con uit supported in spaced relation intermediate the inner ends of the cylndric enclosure, a circulating fan journalled at that end'of the conduit adjoining the funnelshaped dome for circulating a drying medium longitudinaly through and externally of said conduit with looped directional flow, and means for heating the drying medium.

12. A drying machine comprising a cylindrical enc osure having a funnel-shaped dome and damper control at one end thereof, means providing an annular/opening in the opposed end of said enclosure, means for intermittently progressing a series of form-supporting arms having flanges closing the annular opening through the enclosure Wit-l1 capacity of lateral swinging exit and entry at definite locations, a conduit supported wholly within and concentric to the enclosure, means for circulating a drying medium longitudinally through and externally of said conduit with looped directional flow, and means for heating the drying medium.

13. A drying machine comprising a cylindrical enclosure having a funnel-shaped dome and damper control at one end thereof, means providing an annular opening in the opposite end. of said enclosure, means for intermittently progressing a series of formsupporting arms about the annular opening and enclosure with capacity of lateral swinging exit and entry at definite locations, means associated with the supporting arms for substantially closing in the annular opening during progression about the en4 closure, a conduit Wholly within and concentric to the enclosure, a fan for circulating drying medium longitudinally through and externally of said conduit with looped directional How, and means for heating the drying medium.

14. In a drying machine including n annular enclosure through which the articles to be dried are advanced, means for carrying a series of pivoted form-supporting arms through the enclosure, cam teeth about the arm pivots, and trip means located in the path of movement of said cani teeth to intermittent-ly swing the arms horizontally for presentation externally of the enclosure means cooperative With the cam teeth whereby each pivoted' arm is progressively swung to effect horizontal egress and ingress from and into said enclosure at definite stations.

16. In a drying machine includingr an annular enclosure through which the articles to be dried are advanced, the combination of a carrier having a series of pivoted arms each of which supports an article-carrying form disposed at an inclination to the vertical, eam teeth about. the arm pivots, means for intermittently rotating the carrier to advance the form through the annular enclosure, and means cooperative with the cam teeth whereby the pivoted arms are progressively swung in a horizontal direction to effect exit and entry from and into the drying machine at definite locations.

17. In a drying machine includingr an annular enclosure through which the articles to be dried are advanced, the combination of a carrier having a series of pivoted arms each of which removably supports an articlecarrying form inclined to the vertical, cam teeth about the arm pivots, means for intermittently rotating the carrier to advance the forms through the annular enclosure, and means cooperatiye with the cam teeth whereby the pivoted arms are progressively rotated in av horizontal direction to effect exit and entry of the forms from and into the annular drying enclosure at definite locations.

18. In a drying machine including an annular enclosure through which `the articles to be dried are advanced, the combination of a carrier having a series of pivoted arms to the free ends whereof are clamped articlecarrying forms inclined to the vertical, cam teeth around the arm pivots, means for intermittently rotating the carrier to advance the forms through the annular enclosure, and means cooperative with consecutive cam teeth whereby said arms are progressively rotated in a horizontal direction to effect exit from and entry into said annular enclosure at definite locations.

19. In a drying machine including an annular enclosure through which the articles to be dried are progressed, the combination of a radially armed spider and superposed turntable, the latter forming a part endclosure for the drying machine, supporting members pivoted to the free ends of the spider arms, article-carrying forms remova ly clamped to the free ends thereof, means for intermittently rotating the spider and turntable to progress the forms through the annular enclosure, and means whereby the supporting members are individually actuated to effect exit from and entry into the annular drying enclosure at spaced locations.

20. In a drying machine including an annular enclosure through which the articles to be dried are progressed, the combination of a radially armed spider and superposed turntable, the latter affording a part endclosure for the drying machine, a complemental series of upwardly inclined formsupporting members pivoted to the outer ends of the spider arms, each pivotfpin whereof is provided with a trip-block, a channeled track with which the trip-'blocks engage to retain the form-supporting members relatively stationary durino` progression through the annular drying encosure, means for intermittently rotating the spider and turntable, and means whereby the supporting members are individually swung to effect exit from and entry into the dryin enclosure at definite locations.

Q11. In a drying machine including an annular enclosure through which the articles to be dried are progressed, the combination of a radially armed spider and superposed turntable, the latter affording a part endclosure for the drying machine, a complemental series of form supporting arms pivoted to the outer ends of the spider arms, each pivot-pin whereof is provided with a toothed cam device, a channeled track through which the cam devices travel to retain the form-supporting arms relatively stationary during progression through the drying enclosure, means for intermittently rotating the spider and turntable, and means whereby the form supporting arms are individually swung to effect exit from and entry into the annular drying enclosure at definite locations.

2Q. In a drying machine including an annular enclosure through which the articles to be dried are progressed, the combination of a radially armed spider and superposed turntable, the latter affording a part end- -closure for the drying machine, a complemental series of form-supporting arms pivoted at the outer ends of the spider arms, each pivot pin whereof is provided with a toothed cam device, a channeled track affording guidance for the cam devices to retain the form-supporting arms relatively stationary during progression through the drying enclosure. and a series of obstructions associated wit-h the channeled track for imparting a half-turn in one direction to move each form-supporting arm into stripping position, a successive quarterturn into boarding position, and a further quarter-turn to drying enclosure progressive position.

23. In a drying machine including an annular enclosure through which the articles to be dried are progressed, the combination of a carrier having a series of pivotal out riggers, removable article-carrying forms attached to the outer ends thereof, means for intermittently rotating the carrier, means for maintaining the form-carrying outriggers relatively stationary during progression through the annular passage, and a series of half-turn to each individual outrig er whereby to swing the article-carrying orm Vfrom enclosure progressive locatlon into stripping position, a successive uarter-turn to move t e same mto boarding position, and

'a further uarter-turn to return said form into the enc osure progressive location.

24. In a. drying machine including an annular enclosure through which the articles to be dried are progressed,the combination of a radially armed spider and means affording a part end-closure for the drying machine, a complemental series of form-supporting outriggers pivoted to the spider arms, each pivot pm whereof is provided with a toothed cam device, a channeled track with which the cam devices engage to retain the form-supporting outriggers relatively stationary during progression through the drying` enclosure, a series of obstructions associated with the channeled track for individual turning of each Outrigger to effect its exit and entry out of and into the drying machine at spaced locations, and opposed angle members carried by the outriggers having arcuately configured lateral portions adapted, when moved into overlapping relation, to substantially seal the annular enclosure aforesaid.

25. In a drying machine including an annular enclosure through which the articles to be dried are progressed, the combination of a radially armed spider and turntable affording a part end-closure for the drying machine, a complemental series of form-carrying outfriggers pivoted to the spider arms, each pivot pin'whereof is provided with a toothed cam device, a channeled track with which the cam devices engage to retain the form-carrying outriggers relatively stationary during 'progression through the drying enclosure, a series of .obstructions associated with the channeled track for individual actuation of each Outrigger to effect exit and entry from and into the drying machine at spaced locations, opposed angle members having arcu- 'l ately configured lateral portions associated with the form carriers adapted-when brought into registration-to substantially close in the annular enclosure aforesaid, and teeth around the periphery vof the turntable patterned to fill in the interspaces between the registering angle members. v

26. In a drying machineincluding ah annular enclosure through which the articles to be dried are progressed, the combination of a radially armed spider and turntable affording a part end-closure for the drying machine, a

complemental series of form-supportingoutriggers plvoted to the spider arms, cach' pivot ypin whereof is provided with a toothed cam device, a channeled track traversible by the cam devices to retain the form-supportingoutrlggers relatively stationary during progression through the. drying enclosure, a series of obstructions associated with the channeled track for individual movement of cach outrigger to effect exit from and entry into the drying machine at spaced locations, opposed angle members having arcuately configured lateral portions associated with the form-supports adaptedwhen brought into overlapping registration-to substantially close in the annular enclosure aforesaid, saw teeth around the periphery of the turntable patterned to fit the interspaces between adjoining angle members, and a crown-gear and single-tooth pinion adapted to impart intermittent motion to the spider and turntable.

27. In a drying machine including a vertical annular enclosure through which the articles to be dried are progressed, the combination of a radially armed spider and turntable affording a part end-closure for the drying machine, a complemental series of outriggers supporting vertically inclined articlecarrying forms pivoted to the spider arms, each pivot pin whereof is provided with a toothed cam device, a -channeled track engaged by the cam devices to retain the articlecarrying forms relatively stationary during progression through the vertical annular enclosure, a series of obstructions associated with the channeled track for individual actuation 'of each Outrigger to effect its exit and entry relative to the vertical enclosure at spaced locations, opposed angle members having arcuately configured lateral portions carried by the article-carrying supports adapted--when moved into overlapping registration-to substantially close in the annular enclosure aforesaid, saw teeth around the periphery of the turntable, arranged to fill in the interspaces between the overlapping angle members, and a crown-gear and single-tooth 'pinion adapted to impart intermittent motion to the spider and turntable.

In testimony whereof, we have hereunto signed our names at Philadelphia, Pennsylvania, this 10th day of April, 1924.

THOMASv ALLSOP. WALTER W. SIBSON.

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