US2097573A - Channel cementing machine - Google Patents

Description

NGV. 2, 1937. C, A NEWHALL 2,097,573

CHANNEL CEMENTING MACHINE Original Filed Sept.' 28, 1935 5 Sheets-Sheet 1 Nov. 2, 1937. c. A. NEWHALL 2,097,573

CHANNEL CEMENT ING MACH INE Original Filed kSept. 28, 1935 5 Sheets-Sheet 2 /M/E/v TU@ gm. //m

M gw

CHANNEL CEMENTING MACHINE v Original Filed Sept. 28, 1935 5 Sheets-Shea?I 3 MKM NOV. 2, `1937. c, A, NEWHALL 2,097,573

CHANNEL CEMENTING MACHINE Original Filed Sept. 28, 1935 k5^Sheena-sheet 4 Nov. 2, 1937` c, A, NEWHALL 2,097,573

HANNEL GEMENTING MACHINE y )UrigT'na-lf Filed Sept. 28, 1935 5 Sheets-Sheet 5 WM5/Vm@- -Kz a. MM

Patented Nov. 2, 1937 uNiTED STATES PATENT oEEicE i CHANNEL CEMENTING MACHINE Carl A. Newhall, Peabody, 'Mass., assignor to United Shoe Machinery Corporation, Paterson, N. J., a corporation of New v 'lersey- Original application September 28, 1935,' Serial No. 42,659. Divided and this "application November 25, 1936, Serial No. 112,723. Britain September 25, 1935 1Y0 Claims.

This invention relates to shoe cementing machines and is herein illustrated as embodied in a machine for applying cement to the channels of shoe soles after the seam has been formed, thereby to hold down the flap.

The application of cement to channels has heretofore beenV carried out principally by the use of a driven applying brush and while such machines have been made to serve their purpose when employed for applying cement of the naptha-cut rubber type, it has been necessary to apply an excessive quantity of cement because of the nature of the work. Cementing the channel takes place after the sole has been sewed to the shoe and, consequently, the channel bed at the shank of the shoe lies in a radically different plane from the channel bed at the forepart of the shoe, the contour of the channel at the ball line and at the toe being also abruptly curved. Furthermore, it is well understood that the channel flap, after it has been turned back to facilitate the sewing of the sole, is wrinkled and may stand upright from the sole or lie forward toward the channel base or even be tilted back away from the channel base. Frequently, the channel flap has dried and become stiff and hard at the time when the shoe is ready to be cemented. If this is the case, it presents a very uneven surface which must, nevertheless, be fairly uniformly coated with cement if the flap is to be made to stick to the sole. When the cement employed is of the naptha-cut rubber type or of the latex type, the danger of seriously damaging the shoe in case the upper is accidentally soiled is not very serious because these cements can be removed successfully with suitable cleaners from most types of leather. If, however, it is desired to use cements of the pyroxylin type or of the poly-V merized chloroprene type, one of which is known commercially as DuPrene, then the danger of soiling the shoe becomes a very real handicap because these cements cannot be removed readily, if at all.

Accordingly, an important object of the invention is to provide a channel cementing machine by means of which a cement may be applied to the channel uniformly, and in just the desired quantity, without soiling other parts of 'the shoe. Y

As in most other types of channel cementers, the shoe is held up against the depending applying device and is moved progressively to present successive portions of the channel to the applying tool. This manner of presenting the work is facilitated, in accordance with a feature of the Y In Great invention, by a power-operated means engaging the-shoe to help move it past Vthe nozzle. In .an illustrated construction, a resilient member Yis provided which contacts with the exposed bottom surface of the sole adjacent to the base of the channel iiap.r `Means is also provided for supporting the channel flap with respect Yto theV nozzle and this is shown as combined with the work-'feeding device.`

Still another feature of the invention resides in `'an arrangement Vfor oscillating the nozzle about its apex and substantially about the bottom of the channel. Thus, even though the range of oscillation be relatively small, the application of a uniform coating is vfacilitated and the feeding of the work is rendered easier.

vThis application is a division of my rapplica-V tion Serial No. 42,659, filed SeptemberrZS, 1935, and directed 'to` novel features of the extruding nozzle.

These and otherfeatures of the invention will be described in the following specification, taken in connection with the accompanying drawings, in which Y Fig. 1 is a side elevation of one embodiment of the invention, showing a machine with aside plate removed to kdisclose the parts within a hollow frame;

Fig. 2 is a detail view, shown upon'fa larger scale, of control mechanism for a nap-lifting finf ger;

Fig. 3 is an angular view of the operating tools, showing the presentation of a pieceof work to the machinej Fig. 4 is a detailed section through an eccentric connection 'in the drive o'fthe flap-lifting finger; A

Fig. 5 is anY angular iriew on a much larger scale of .a nozzle, with a cover plate removed;

Fig. 6 is a similar view of a modified construction in which two plates are employed;

Fig. 'I is a side elevation ofthe nozzle shownA in Fig.A 5, with the cover plate in position;

Fig. 8 is a side elevation of the nozzle shown in Fig. 6 with the plates in position;

Fig. 9 shows a modied form of the nozzle of Fig. 5; Y

Fig. .10 is ari elevation looking `at the leading edge of the nozzle shown in Fig. 9;

Fig. l1 is a plan view oi a fragment Yof a shoe sole, showing the flap in lifted position, and illustrating the application of cement by means of aA Y Fig. 12 is a side elevation of another embodiment of the invention, showing the work-engaging parts of the machine together with a part of the supporting frame;

Fig. 13 is a plan View of the mechanism, as shown in Fig. 12, for oscillating the nozzlevv and for driving the feed roll;

Fig. 14 is an angular View of this mechanism on a larger scale;

Fig. 15 is an angular view on a still larger scale of the cement-applying nozzle illustrated in connection with the embodiment shown inv Fig. 12, and

Fig. 16 is an angular view looking at the channel of the forepart of a shoe, showing, in section, the tip of this form of the nozzle in operative position, together with a fragment of the feed roll.

In the embodiment illustrated in Figs. 1 to l1, inclusive, a machine frame I is mounted upon a pedestal I2 and supports a cement receptacle I4 as well as a pump casing I6 containing a gear pump by which cement taken from the receptacle i4 is extruded underpressure through a flexible tube I8 to a nozzle 20 by which it is applied to the work. A piece of work, such as `a shoe 22 mounted on a last, has an outsole attached by stitches positioned at the apex or bottom of a channel cut in the sole. In the cutting of this channel, there is formed a channel flap 26 which is to be cemented to the bed 28 of the channel in the position which it occupied before the channeling cut was made. The shoe is moved progressively past the nozzle 2U to cause the treatment of` successive portions of the channel flap and the channel bed. Control of the quantity of cement extruded may be effected in any desired way, as by a by-pass valve (not shown) adjusted by a thumb screw 29.

The frame l0 comprises parallel side plates 30 and 32 which are held in spaced relation by a plurality of shouldered bolts, such as the one shown at 34, and some of which are utilized as pivots, as will be later described. At the top of the frame and between the plates 30 and 32 is mounted a block 36 which is held in position by bolts passing through the holes 38 and which supports a rod 48 upon which there is mounted a nozzle carrier 42. in and out, and is held against turning byV a pointed screw stud 44. The nozzle carrier is split at its upper end and held in the desired po-` sition on the rod by pinch screws 46 (Figi 3). A nozzle stem I has a ange 48 which is supported on spaced flanges 50 formed upon the .carrier 42 and towhich it is bolted. 'Ihe connection between the flexible tube vI8 and the nozzle stem 5| comprises a fitting 52 whichcontains a turn valve 54 and is provided with a base 56 secured in tight relation to the flange 48 of the nozzle stem 5I by screws (not shown) The upper end of the fitting is threaded in a T fitting 58 which supports a pressure gage 59 and is joined to the tube i8. From Figs. l, 5, and 7, it will be seen that the nozzle 20 itself has a flange 55 and a nipple 51. This nipple is received in a socket in the lower end of the stem 5I which has a flange 58 held to the flange 55 by screws.

Provision is made for feeding,l the workv by means of a rubber-tired roll 60 mounted on a stub shaft in an arm 62 which is pivoted on a pin 54 at the extreme right side of the machine so that the roll may be lifted slightly by the work to accommodate variations in the shape of the shoe. The pivotal movement of the supporting arm 82 is guided by flttingthis arm between the This rod 40 may be adjusted side plates 30 and 32. In order to drive the feed roll 68, the stub shaft on which it is mounted is connected by pinions 66 with a counter shaft 68 journaled in the carrier arm 62. This counter shaft 68 is joined by miter gears 18 to another counter shaft 'l2 which, in turn, derives power fromwa main drive shaft 740i the machine through spiral gears 15. These gears rotate a `short shaft T8 which is joined to the counter shaft 12 by an extensible shaft 88 containing universal joints. This arrangement gives complete freedom for up-and-down movement of the feed roll 60 without interfering with the drive.

' In View of the fact that the channel flap 28 lies in all sorts of angular positions with respect to the channel bed 28, and the further fact that it Vis wrinkled and frequently stiff and dry, it has been found desirable to press the flap against the side of the nozzle 28 by means of an oscillated flap-pressing finger 82. To this end, the nger is-clamped in the lower arm of the bell crank lever 84 (Fig. 3) which is pivotally supported by depending arms 86 secured to the nozzle carrier block 42. A vibratory motion is imparted to the nger 82 by means of a horizontal rod 88 loosely received in a groove in the block 38 and connected to the upper arm 90 (Figs. 1 and 2) of a drive lever through toggle links 92 and 94. Thus, the ilap is pressed firmly against the nozzle but is intermittently released so that the work-may be fed freely. At the point where the rod 88 is joined to the toggle link 92, it is pivotally supported upon a hanger 98 swinging from a pivot 98 in the blockx 35. A spring |88 surrounding the rod S8 bears against a portion of the nozzlesupporting block 3S and tends to return the finger 82 to a position spaced from the nozzle when there is no work in the machine, this movement being limited by a collar E82. Thus, when the machine isat rest, there is always plenty of room to bring the channel ap into position between the finger and the nozzle or to remove it at the end of a cementing operation. If the flap is turned well back against the sole, then the finger V82 serves also to lift it into cementing position.

The rod 88 is joined to the bell crank 84 by a pivot block |84 adjustably slidable along the rod and held in position thereon by nuts 188. As will be seen from Fig. 4, this block I 84 has a pivot pin 68 received in an eccentric sleeve H8 which may be krotated to determine the exact relation of the-operative position of the finger 82 with respect to the nozzle so as to accommodate different thicknesses of channel flaps thereby rmly to support the ilap in coating relation to the nozzle without hindering the feed of the work. A rough adjustment of this position, and, hence, of the limits of the range of oscillation, is secured by adjustment of the pivot block E84 on the rod 88 by means of the nuts IBS but, when the operator changes from one class of work to another, such an adjustment as is provided by the nuts IBS is somewhat slow. There is provided, therefore, the eccentric sleeve IIS, which may be held in adjusted position by means of a ratchet H2 formed on the sleeve and having saw-like teeth toreceive a spring-pressed pawl H4. The sawtoothed ratchet H2 forms an easily grasped handle for turning the sleeve l Il] and, the inclination of its teeth being equal in both directions, the handle l l2 may be turned either way, sliding over the beveled upper end of the pawl in so doing.

The oscillation of the rod 83 to vibrate the linger 82 yis effected when the toggle links 92 and 94 are in line, as shown in Fig. '1, by means of the lever Sil on the lower arm |213 of which is a roll coacting with a serpentine-path cam H6 formed on or attached to a drive pulley H8 which is secured to the shaft 14. 'I'his lower arm |2 is outside the frame 30 and is joined to the upper arm of the lever Sil through a forked portion |22 extending around the edge of the frame. The design is such that the nger 82 is oscillated about 2400 times per minute and the flap is thereby pressed firmly against the side of the nozzle without interfering with the feed of the work. It will be noted that the drive shaft 'i4 is connected to the pump within the casing I6 by pinions |28.

For controlling the machine,lthere is provided a treadle rod |38 connected at its lower end to a treadle (not shown) and joined at its upper end to a plat-e |3| forked at its upper end to receive a vertical plate |32, the two being pivotally connected to one another and to a lever |54 to be later described. In the lower por ion `of the plate el is a slot lV for the reception of a transverse pin between the branches of a forked lever |35, the left end of which is pivoted on a shouldered bolt between the side plates 38 and 3?. of the frame, and the rig'ht end of which is joined by a. rod |38 to an operating lever |40 for the valve 5|.- in order thereby to control the flow of cement through the nozzle 2B. TlfL's operating lever Hi8 is secured to a rod Hl? pivoted in a depending portion Ui of the block 35, and the rod is joined to the valve 54 through an intermediate shaft |66 having universal joint connections to the valve 54 and the rod |42. One of these universal connections is forked to enable the ready removal of the valve fitting 52 and is held in operative relation by a spring Hi8 surrounding the rod MZ. A stop screw |58 determines the closed position of the valve by limiting the upward movement of the operating lever |46 under the action of a spring |52 which is joined at its upper end to the block 3E and at its lower end to the forked lever |35. To limit the downward movement of the treadle rod and the plates ll and |32, the two are pivotally connected to each other and to a lever |513 having a portion |56 which abuts a stop |58 formed as a part of the frame member. The lever |54 swings on an eccentric portion of its pivot pin, thus facilitating assembly of the machine by allowing this lever to be brought into correct relation to associated parts by turning the pin.

The same treadle rod |39 is arranged to control the vibrations of the flap-pressing finger 82 by either breaking or straightening the toggle links 92, S. To this end, the upright plate. |32 has a slot |55@ which surrounds a pin |82 connecting the toggle links. When the treadle is depressed, the toggle is straightened and the oscillations of the lever 9B are transmitted to the finger t2. V/'hen the treadle is released and is raised by the spring |52, then the toggle is broken and the continuing oscillations of the lever 9% are not transmitted to the rod 88. The shape of the lower portion of th-e slot is such (Fig. 2) that movements of the lever simply oscillate the link 92 about its pivotal connection with the rod itilV the feed roll GS is held resiliently against the' work by a connection to this same treadle rod a link H4. When the operator depresses the treadle, thereby drawing the treadle rod down to a position illustrated in Fig. l, he rst moves the feed roll 58 into Contact with the shoe already positioned with respect to the nozzle Et, straightens the toggle to cause oscillation of the flap-pressing finger 82 and then opens the valve 5d. Upon reverse movement of the treadle, the opposite action takes place and the valve is closed to stop the flow of cement and the finger 82 is stopped in open position, before the feed roll @t is lifted from the work by the connection einbodying the collar H8, the block Ethe lever |65 and the link IM. Thus the shoe is always moving forward when the linger |32 is oscillated and when the cement is extruded through the nozzle. f

The nozzle 28 is positioned in the machine as shown in Figs. 1 and 3 in depending position and is inclined downwardly and forwardly with'respect to the direction of movement of ,wc-rk' presented thereto so that a removable platev M35 secured to the outlet face of the nozzle liesv approximately in a vertical plane passing through the axis of the feed roll. A The lower end of the nozzle is tapered heightwise at |32 (Fig. 6) to aid in pushing it into the channel and is forme-:l with a comparatively sharp leading edge |34 (Fig. il) in which there is an outlet |86 5, 6, and 7) tol deliver cement at the bottom of the channel. This cement also lubricates the nozzle, as it were, making it easier to feed the work. The nozzle also has a substantially triangular face |88 through whiclnat |92, emerges a passage |98 extending down through the nozzle. The outlet |88 communicates with the passage le@ through a branch passage |81. It is through this passage i3d-that cement is pumped,Y

v the arm E2 which supports the feed roll 6d byl Y sol at substantially constant pressure when the valveY 5d is opened.V As shown in Fig. V3,"the Yshoe is moved away from the Voperator so that it approaches theleading edge i813 of the nozzleV and so that the face |88 andthe cover or deector plate H] are upon the trailing face of the nozzle. K

It is desired, then, to cause the cement to be applied uniformly upon both the channel 25 and the channel bed 28 as well as in the bottom of the channel, To this end,.the cover plate |89 (Fig. 5), positioned directly to overlie the outlet opening |82 of the passage iemacts as a deflector and cooperates with the face |83 Ato provide a transverse slot |534 (Fig. '7) forming lateral delivery passages or slots extending from the apex of the taperedendvof thejnczzle height-` wise thereof to a point determined by 'a shoul- 65 der 'itt on the cover plate. A'series of cover plates having this shoulder positioned at various distances from the pointed lower 'end may be utilized for channels 1/4-inch, -inch or 1%,- inch wide. Such nozzles, with their narrow outlet slots, show a notable flexibility in their ability to coact properly with channelsy the depth of which varies ,between dlflerent'parts of -a shoe. t

Thus, even if the slot is longer thanrthe chan--r A nelk is deep, the cement,due to its tohe'siveriess,

will draw down from the upper vend of the slot out being extruded over the edge of the channel flap or the channel base, as the case may be. Were a series of holes employed instead kof a slot, the cement extruded from the exposed upper holes would be forced over the edge of the channel ap or the channel base. The cover plate is also provided with a shoulder |98 which is intended to rest upon a shoulder 269 (Figs. 5 and 7) formed upon the nozzle thereby to assist in locating the cover plate in exact relation to the triangular face |88 of the nozzle. The area |9ll between the two shoulders ts closely against the end face |88 to avoid any tendency of the edges of the cover plate to scrape off the cement already applied. The outline of the triangular portion of the cover plate is slightly smaller than the corresponding outline of the face |38. Further to -assist in locating the cover plate upon the nozzle, there may be provided a pin 202 which is received in a socket 29d in the nozzle. The cover plate will be held in position by a screw 285 having a threaded stem ZIB. The elliptical opening |92 formed where the passage |90 emerges in the face |88 is joined to the apex of the tool by means of a shallow groove 2&2 thereby insuring delivery of a sufiicient quantity of cement to the bottom of the channel.

When the nozzle is in position in the machine, the channel flap 26 will be pressed against the plane surface 2|4 whereas the bed of the channel will be held against the opposite surface of the nozzle terminating in the edge 2|6. Under some conditions, the bed 28 of the channel will not be flat but will be curved away from the plane of the bottom of the sole toward the shoe upper. This will be found in womens close-edged shoes and may result in a different curvature of the channel bed around the forepart than that which is in the shank. In order to adapt the nozzle for best operation with a close-edged shoe, it is found desirable to change the nozzle construction to that shown in Figs. 9 and 10 where parts similar to those shown in Fig. 5 have been given similar numerals towhich 1000 has been added. This nozzle differs from that shown in Fig. 5 in having an inner or back surface which is curved inwardly to form a valley terminating in the curved edge 220 which will be close to the shape of the channel bed around the forepart of the shoe and will approximate that found in the shank of the shoe. With this construction,

the cover plate H is also provided with a In constructing nozzles ofthe type shown iny Fig. 5, it is common to do some hand filing where the groove 2|2 joins the elliptical outlet opening |92 and sometimes this is done carelessly, bringing the opening nearer to one side edge than the other. This renders unequal the frictional resistance offered to the cement flowing to the two sides and results in a somewhat uneven distribution of cement upon the two sides of the channel. It is avoided by forming a recess 22:2 (Figs. 6 and 9) in the end face of the nozzle which is separated from the edge of the nozzle by a ledge 225 of uniform width, thus insuring an even distribution of cement. In the form shown in Fig.

to the upper edge of the work being coated with- 9, this recess is joined to the tip of the nozzle by a groove 228 corresponding to the groove 2|2 in Fig. 6.

When the nozzle is to be employed for cements of the polymerized chloroprene type, one form of which is marketed under the name DuPrene, then a nozzle construction such as that shown in Figs. 6 and 8 may be advantageously employed and has a pair of cover plates or deectors 230 and 232. These deeotors, which arekept in alinement with one another by means of a stud 234 entering a socket 236, are mounted for slight lateral movement around a cylindrical portion 288 on the screw 206. To this end, the shoulder 249 on the inner plate 239 is spaced slightly from the shoulder 280 on the nozzle. The intermediate plate 230, having a surface 213| in close contact withthe end surface of the nozzle, is also provided with a shoulder 2li2 corresponding to the shoulder 95 and, when positioned in cementtight relation to the end face |88, forms a transverse slot 249 terminating in lateral passages through which the cement is extruded upon the channel ap and the channel bed. This intermediate plate is also provided with an elongated f opening 286 opposite the outlet end of the passage il@ (Fig. 1l) so that a portion of the cement passes directly to the slot 25| (Figs. 8 and l1) between the lower portion of the intermediate plate 239 and the face of the outer plate 232. This slot is limited by a shoulder 246 upon the forward face of the plate 230. Thus, two slots are formed providing two lateral passages upon each face of the nozzle, these being separated by the thin lower end 248 of the intermediate plate 239. The edges of the lower end 2133 are serrated at 258 thereby to provide a sort of spreading action for the cement which is delivered to the work from the slot 249. The generally triangular lower end 248 of the intermediate plate is slightly smaller than the corresponding portion of the nozzle, while the outline of the lower end 252 of the cover plate 232 is even smaller and is rounded on the outer edges. This, together with the opportunity for slight lateral displacement of the lower ends of the two cover plates with respect to the nozzle, reduces any interference between the nozzle and the shoe to a minimum as the nozzle treats sharply curved portions of the channel. The cement extruded through the rst slot 249 is effective to wet the surface of the leather of the channel ap and channel bed while that extruded through the second slot 25| is enabled thereby to stick even more readily to these already coated surfaces, and to be applied in uniform and predetermined quantities.

-The operation of the machine has already been set forth in connection with the description of the controldevices joined to the treadle rod |30.

Turning now to the embodiment illustrated in Figs. 12 to 16, inclusive, there is shown in Fig. 12 a machine in which a receptacle 3|2 is supported upon a frame 3H). From this receptacle cement is forced through a delivery conduit 3M by any suitable pump (not shown). The pressure applied to the cement in this delivery conduit is measured by a gage 3|8 and the delivery of the cement is controlled by a turn valve 318. This valve is operator controlled and may be connected through a shaft 329 to a treadle (not shown). The shaft B2@ is journaled in the side of the frame and is connected to the valve 3 8 by a shaft portion 322 having universal joints 324 and 326. This valve and gage may be supported upon an screw 334. The cement is conducted fromthey outlet 336 of the Valvel 318 to a through a nexible tube 338.VV i iV Y This nozzle, the shape ofiwhich is shown"v m'cst clearly in Fig. 15, is tapered axially, as inl the nozzles previously described,'tol facilitate its in; sertion in the channel 342 ofthe sole ofY a shoe 344 thereby to apply cementrto the base 346 of nozzle 348 the channel and to the channel flap 348. lThe channel is adapted to be positionedY alongside the passage 358, whereupon the passage 353 will lie beside the channel nap. These passages are of a substantially uniform width throughout their' whole extent so that the cement is applied in uniform quantities transversely of the channel and, hence, as the shoe is moved at a uniform rate by Work-feeding mechanism to be later described, in uniform quantities along the whole length of the channel. As will be seen from Figs. 15 and 16, the leading end 368 of the nozzle is tapered to facilitate movement of the Yshoe past thenozzle While the trailing end 332 is also tapered in order that there may be no clogging of the nozzle as it passes around the-rather sharp curves at some portions of the shoe. It will be noted that the leading side 368 is slightly wider adjacent to the passages. 356 and 358 than is the f trailing side 332. This arrangement prevents the trailing side from having any tendency to scrape off the applied cement and, if desired, the trailing side 362 may be provided withV horizontal grooves 364, still further to avoid displacement of the cement by the nozzle and acting as a sort of spreader.

The fact, previously mentioned, that the channel flap 348 is frequently stiff and is always wrinkled may make it desirable to oscillate the nozzle about its apex 366 which will lie substantially at the bottom of the channel adjacent to the seam 358.

318 and 312 (Figs. 12 and 14) which, in turn, are pivoted upon upright links 314 and 316. The upright links 314 and 316 are pivotally mounted at their lower ends on pivot studs 311 and 384 upon a horizontal bracket 318 which is secured to the bracket 332 by screws 388. Provision is made for oscillating the nozzle by power applied to the upright linkV 316 which has a hub portion 382 pivoted on the stud 334 and provided with a lateral extension 386. This extension carries a Iroll 388 adapted to rest against an eccentric 398 upon a shaft 332 which is journaled in a bracket 334 attached to the machine frame. The roll 388 is held against the eccentric 338 by a springV 336, one end of which is attached to the frame 318.

Feeding of the shoe to cause the channel to traverse the nozzle is facilitated by a rounded, resilient feed roll 468 carried on the lower end of an inclined shaft 482 journaled in an arm 484 which is secured to the arm 332 by therscrews zle.

To this end, the nozzle carrier 358 may beV pivotally supported upon parallel horizontal links` 380:'w`nich also hold the bracket 318. This shaft 482 also carries a cylindrical work-engaging portion 485 which supports the channel flap 348 in a position closely adjacent to the side of the? noz- Thesalient angle between the feed roll portion 488 and the cylindrical Vportion 465 is such that some room is given for the oscillation of the nozzle 358. The inclined shaft 482 is driven by mitergears 486 from a Vshaft 488' which is jour-V naled inthe bracket '332 and Whichis driven'by meshingY pinions 418 from a driven shaft 412. The drive of the Yshaft332 by which the nozzle is oscillatedfis effected by pinions 414, 416 mounted on the shafts 488 and 332, respectively.

In operation, power being applied to force cement under pressure through the Ydelivery conduit 314, the operator Yapplies the channel of al shoe to the Vdepending nozzle 348 with the flap 348jbe I tween this nozzlefand the roll portion 485 and, opening the valve 318, causes the channel of the shoe to traverse the nozzle at a uniform speed, the feed -roll 488, resting against the bottom of the sole, being constantly rotated to move the shoe. be oscillated by the eccentric 338 against4 the tension ofthe spring336. l A i 4 Y Specific features of the embodiment of the nozzle illustrated in Figs. 1 to 11K, inclusive, are not claimed` herein since they are claimedV in an application of Wilbur B. MacKenzie, Serial No. 43,064, filedV October 1, 19.3.5. Features ofthe machine embodied Vin those figures areclaimed in a division of that application, Serial No. 111,453, filed November 18, 1936.

Having thus describedmy invention, what I claim as new, and desire to secure by Letters Patent of the United States'is:V 1. In a machine for applying cement During vthis movement, the nozzle 348 will channel in the sole of a lasted shoe, a tapered extruding nozzleY adapted to be received in the channel and constructed and arranged to apply cement directly both to the flap and the bed thereof, means for forcing cement through said nozzle, and power-operated means for engaging the shoe for causing a relative traversing movement between the nozzle and a shoe Vthereby to apply cement Yalong the linearv extent lof the I Y channel. Y

2. In a machine for applying cement to a channel in the sole of a lasted'shoe, a taperedY cement along the linear extent of the channel flap and the channel bed.

3. In Va machine for applying cementV to a channel in the sole of a lasted shoe, a tapered extrud ing nozzle having lateral passages, the leading Vend of said nozzle being tapered to' facilitate movement of the shoe with respect to the'nozzle, means for forcing cement through said nozzle upon both the nap and the bed of the channel,

flap-supporting means pushing the ap against the nozzle, and power-operated shoe-feeding means. Y

4. In a machine for applying cement to a channel in the sole of a lasted shoe, a tapered extruding nozzle adapted to be inserted in the channel of a shoe sole, said nozzle being provided withV lateral passages extending axially of thenozzle, means for forcing cement through the passages of said nozzle for application to a, channel base and a channel flap, and a power-operated, shoefeeding device constructed and arranged both to cause traversing movement of the shoe and to support the channel iiap with respect to the' nozzle.

5. In a channel cementing machine, an extruding nozzle, means for delivering cement through said nozzle directly to the channel of a shoe sole, and shoe feeding means comprising a. roll one portion of which is adapted to engage the bottom of the sole and another portion of which is adapted to support the channel flap for the delivery of cement thereto by the nozzle.

6. In a channel cementing machine, an extruding nozzle, and a driven roll having a salient portion entering the angle between the bottom of a sole and an upturned channel flap, a portion of said roll at one side of said salient portion being resilient to engage and feed the Work and a portion of the roll at the other side of said salient portion being adapted to support the channel ap with respect to the nozzle.

7. In a channel cementing machine, a tapered extruding nozzle adapted to be inserted in the channel of a shoe sole and having an outlet opening Within the channel, and means for supporting said nozzle Vfor oscillatory movement about a point substantially at the end of the nozzle.

8; In a channel cementing machine, a tapered extruding nozzle adapted to be inserted in the channel of a shoe sole and having lateral passagesthrough Which cement is extruded directly upon the channel base and the channel ap, and means for oscillating said nozzle about a point substantially at the apex of the nozzle.

9.k In a channel cementing machine, a V-shaped extruding nozzle, lateral passages extending from thetip along the sides of said V-shaped nozzle heightwise thereof with respect to the depth of the channel in a shoe sole, means for forcing cement through said nozzle under pressure, and means for vibrating said nozzle'from side to side of the channel about anl axis substantially at the apex of the V-shaped nozzle.

10. In a channel cementing machine,an extruding nozzle having a tapered end portion adapted to be inserted in the channel and shaped at one side for engagement with the channel flap, means for holding the ap against the nozzle, said nozzle being provided with an elongated slot extending from the base of the channel substantially to the edge of the flap, and means for feeding the work past the nozzle.

CARL A. NEWHALL.

Images