US1474350A - farrar - Google Patents

Description

Nfov. v20, '1923` F. W. FARRAR sEAM RUBBING MACHINE Filed Oct. 21. 1920 2 Sheets-Sheet 'l Nov.E 20 1923 O F. W. FARRAR sEAM RUBBING MACHINE Filed oct. 21 1920 2 Sheets-Sheet 2 Patented Nov. 20, i923.

UNITED STATES PATENT OFFICE.

FREDERICK WILLIAM FARRAR, OF LEICESTER, ENGEAND, ASSIGNOR T0 UNITED SHOE M'ACHINERY CORPORATION, OF PLTERSON, NEVJ JERSEY, A CORPORATION OF NEW JERSEY.

SEAMRUBBING MACHINE.

Application led October 21, 1920. Serial No. 418,549.

in United States Letters Patent No. 1.259,13@ granted on application ot W. T.

Roberts March l2, i9i8, liled June 26,

provide a machine of this character which will enable better work to be produced and which will call for less skill and experience on the part ot the operator. Heretofore, in the operation or seam rubbing machines, the ditiiculty has arisen that the seams are not properly opened up and the two upstanaing raw edges oi'l the work are apt to be turned down, both on the same side of the seam. To overcome this objection, one feature oi: the invention consists in the provision of a. rotary plow which aids in feeding, and spreads the margins of two pieces oi1 work where they proj ect beyond the seam uniting them, and a work support having a ridge which engages between and separates the work pieces on the other side of the seam. ln the illustrated embodiment, there is also provided a rotary feed roll which may be formed in sections, preferably arranged to engage the work pieces yieldingly at the sides of the ridge.

Another ob'viect oi the invention is to provide an improved work support which will enable closed7 boot uppers or other work to be placed easily in a position to have the seams rubbed, the construction being such that the work also may be removed r "ly from the machine when the rubbing mentalities have completed their work. ln accordance with this feature, there is provided an upright post having a shelving work surface over which closed boot uppers or other work may be threaded, and means to depress the post to provide Jfor removal oit the completed work.

Referring to the drawings: lug. l is a iront elevation, partly in sec tion, oit the complete machine;

riiig. 2 is elevation, partly in section, of the rotating 'reed shaft and its associated parts;

l." ig. 3 is a detail view of a portion oill the parts shown in Fig. 2 illustrating diagrammatically their presumed mode of action upon the work;

`ig. a is a top plan view, partly in seo tion, of the rotating feed shaft and associated parts;

`Fig. 5 is an enlarged side elevation, partly inpsection, ot the work suport;

Fig. 6 is a front elevation of a portion of the work support;

Z is a detail section showing the manner of ustingl the height ot the work support.

ri`he framework oi: the machine, including the shafts and drive gearing 'for the rotating` tools, is., or may be, similar to the structure shown in the Roberts patent above referred to. lt comprises a projecting arm or gooseneck 8 which carries, in suitable bearingc4 in a brariret le, a shalt lO having on one end a work rubbing roll or flattenl ing tool l2. The bracket 14 may be pivotally mounted to swing on the trunnions 1G and in order to hold the rubbing roll l2 yieldingly against the work a spring 18 may be interposed between the bracket and the 'framework lileferring more particularly to Figs. 2 and 3, where my seam opening and guiding device is shown in detail, there is prov a driven Afeed shait 2O on which is mounted a feed roll comprising conical sections 22 and 2a' adapted to iorm, in co-operati with the inclined faces of the block or anvil (it), hereinafter referred to, a substantially parallel sided inverted if-passage 26 for the .if'ork. Vhe conical portions are truncated so as to have narrow annular faces 28 at their smaller ends and on the driven shait 20 between these faces, there is formed a seam opening and feed member comprising peripheral rib or plow member 32 oic a diameter slightly larger than the diameter of the narrow faces 28 and gradually increasing in thickness from its portion of greatest diameter to that portion oi it which oins the driven shaft. The driven shaft 20 is formed at each side of the rib 32 with 4 in the casing.

shoulders 311 which form stops to limit the movement of the spring pressed conical sections 22, 2li towards the peripheral rib vThus there are small spaces between the narrow faces 28 and the sides of the rib 32, these spaces being provided to pi; vent stray ends of thread and the like from being pinched and caught between the narrow faces and the rib. 'lhe conical sections are urged axially towards the rib by springs 3 interposed between the ends of the sections and collars 38, el() fast on the driven shaft 20. rthe conical sections 2Q, 24 are constrained to rotate with the driven shaft 2O by pins 4:2, t, respectively, projecting axially from the iiXed collars 38, ld and enterine` openings in the conical sect-ions.

lo drive the feed roll, the driven feed shaftQO may be connected to, or formed integrally with, a drive shaft n'iounted .in bearings 48 and 50 on a bracket 52, pivote-d as indicated at 54, to the framework. rifo press the feed roll downwardly the work, the spring 56 may be interposed between the framework and the bracket 32. At 58 in F ig. l is indicated pressing or ironing roll and this roll, together with the drive shaft 46, may be supported and driven as described in the ltoberts patent referred to.

Referring more particularly to Fics. and 6, the block or anvil GO which constitutes the worl; support is provided with two faces 62 inclined to cach other and meeting in a ridge 6dbaclr of which is a flattened portion (56 which receives the pressure of the work rubbing roll. 60 has on its lower face a tongue which is clamped in a dovetailed groove 68 formed in the upper face of a vertically sliding upright post 70 mounted in the casing 72. rlhe block 60 is clamped in the post 70 by clamp screws 71tand is adjustably lixed in position by a screw 76 threaded into the block and having its head in engagement with a face of 'the post 70.

To actuate the post 70 to apply or remove the work, there is provided in its lower end a recess in which is pivoted one end of the link 78, the other end of 'the link pivotally connected to a lever 80 pivoted The lever 8() is pivoted ou an eccentric portion S2 of a stud Set which is rotatably mounted in bearings on the casing. To adapt the machine or different varieties of worlr, this stud is pro d with a head 86 by which it may be rotated to adjust the post TO vertically. rllhe stud may be locked in its adjusted position by a nut 88 on one end. The block GO held in a normal raised position by a spring 90 fastened at one end to a hook 92 and at the other end to an arm 9e of 'the lever 80. A face 96 on the lever and a pin 98 on the casing limit the height of the bloclr, the

T he bloeli o parts being normally in a position in which the link f8 and the arm of the lever 80 to which it is coupled, constitute a more or strainghtened toggle supporting the block against heavy downward pressure. 'llo lower the bloei: 60 for removal of work the lever 8() has pivotally connected to it at i0() a treadle rod ll, and to limit this movement, there are provided a lug 101ion the lever 8O and -a stop face 10G on the casing. rllhe contour the blocl: is shelving and is such that a closed7 boot upper er the like can be threaded conveniently over it the work passes beyond the point of operation. rl`he work pieces may also be withdrawn alone or with others when a a number of them have thus accumulated on the block, this being accomplished by a depression of the treadle rod to provide the necessary clearance between the post and the rotating rolls.

ln operation, when the leading edge of a piece of work lV (fed up the ridge of the bloeit 66 by the operator) encounters the feed roll, the conical sections 22, will be forced apart by the portions of worlr lying on the inclined faces 62 of the block,

and the rib 32, which is in line with the ridge of the anvil, will enter between the upwardly projecting raw edges of the two pieces of `material W joined by the seam, as shown in l. These edges will thus be fed and definitely spread apart in opposite directions away from the seam in preparation AIfor the action of the rubbing Vtool or other flattening device.

Although 'the invention has been set forth in connection with a machine for pressing seams and has been described as particularly adapted for use in shoe manufacture, it should be understood that the invention is not limited in the scope of its application to the particulai` machine which is shown and described nor to use with any particular material.

Having thus described my invention, what l claim as new and desire to secure by Letters Patent of the United lfitates is:

l. in a seam rubbing machine, a worlr support having a. ridge to separate Vthe worl: pieces on one side of the seam, and a mechanically actuated plow to feet and separate the margins of the two pieces of work where they project beyond the seam.

2. ln a seam rubbing` machine, work support, a rotary shaft, and a device positively actuated by the shaft progressively to separate thermargins of two pieces of vork where they project beyond the seam, said device comprising an annular plow and yieldingly mounted feed rolls ori-opposite sides of the plow.

3. ln a machine of the class described, the combination with a work support having a ridge, of rotary members mounted for relal-lO tive yielding axial movement to engage the work on each side of the ridge.

a'. In a seam rubbing machine, a work support, a rotary shaft, feed members mounted to slide axially on the shaft, and spring means arranged to move the members axially to press them yielding against work on the support.

In a seam rubbing machine, a stationary work support, a rotary shaft, and feed members mounted on the shaft for yielding axial movement.

6. In seam rubbing machine, a work support having a ridge, a rotary shaft, and a driven feed roll comprising two conical portions yieldingly urged toward one another to press the work on the sides of the ridge.

7. a machine of the class described, a work support having a ridge, a rotary shaft, and a driven feed roll mounted on the shaft and comprising relatively axially yieldable conical portions arranged to press the work on the sides of the ridge.

8. In a seam rubbing machine, a work support, a rotary shaft, conical members slidably mounted on the shaft, and means to press the conical members toward each other.

9. In a seam rubbing machine, a work support, a rotary shaft having a plow, conical members slidably mounted on the shaft, springs to press the conical members toward each other, and means to limit the approach of the conical members toward the plow.

l0. In a seam rubbing machine, the combination with a work support, of a rotary plow, and yielding means acting on the work at the side of the plow to press the work toward the plow.

11. In a seam rubbing machine, a work support having a ridge, a rotary plow, and feed members mounted to rotate with the plow and constructed and arranged to press yieldably towards the sides of the ridge.

12. In a seam rubbing machine, a plow, and a driven, work-feeding member comprising relatively axially movable sections to engage the work at the sides of the plow.

13. In a seam rubbing machine, the combination with a work support having a lidge, of a rotary member having a peripheral rib, and conical members at the sides of the rib to press the work on the sides of the ridge.

14. In a seam rubbing machine, the combination with a support having a ridge, of a rotary plow, and means coaxially arranged with respect to the rotary plow for yieldplow.

15. In a seam rubbing machine, a work support having a ridge, a plow, and rotary members mounted for yielding axial movement to engage the work at the sides of the ridge.

16. In a seam rubbing machine, a work support having a ridge, a rotary shaft having a rib to enter between the margins of two pieces of work where they project beyond the seam, and rotary members mounted on the shaft for relative yielding movement to engage the work on each side of the ridge.

17. In a seam rubbing machine, the combination with a work support having a ridge, of a work feeding roller comprising relatively yieldable sections to engage the work at the sides of the ridge, said feed roller sections also having provision for yielding in a direction transversely of their axis.

18. In a seam rubbing machine, a rubbing tool, an upright post having a stationary shelving work surface over which closed work may be threaded as the seam is rubbed, and means to depress the post to provide clearance between the latter and the rubbing tool for the withdrawal of the work.

19. In a seam rubbing machine, a rubbing tool, an upright post over which cclosed"` work may be threaded as the seam is rubbed and having a work-supporting surface consisting of a ridge merging into a plane, means to sustain the post rigidly against the rubbing pressure, and means to release the sustaining means to depress the post for removal of the work.

20. In a seam rubbing machine, a rubbing tool, a post over which closed work may be threaded as the seam is rubbed and having a work-supporting surface consisting of a ridge merging into a plane, a toggle to sustain the post rigidly against the rubbing pressure, and means to break the toggle to depress the post for removal of the completed work.

21. In a seam rubbing machine, a rubbing tool, a work supporting post over which closed work may be threaded as the seam is rubbed, a toggle to sustain the post rigidly against the rubbing pressure, means to adjust the position of the toggle, and means to break the toggle to depress the post.

In testimony whereof I have signed my name to this specification.

FREDERICK WILLIAM FARRAR.

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