US1928654A - Seam pressing machine - Google Patents

Description

Oct. 3, 1933. w. P. OSGOOD SEAM PRESSI'NG MACHINE Filed Feb. 1, 1932 1,928,654. sEAMria ssiNe MACHINE V -Walter P." Osgood, Maiden, Masa, assign-nor to Boston MachineWorks Company, Lynn, Mass., a corporation,efMassaehusetts Applicatien February 1, 1932. Serialblo. 590,219 I 12 Claims.

The present invention relates to seam-pressing machines, and, more particularly to that type thereof which is used in the manufacture of mens shoes to press the back quarters.

"The standard machine ofthis typeis. disclosed seam joining the in the patent to Staples, 1,234,950,-July 31, [1917.

The 'Staples seam-ipressing machine is provided with a'fseam-presser and a seam-setteriboth of V which are moved through a four-motioncycle to 5 pressrthe seam, to feed the work and to set the pressed seam. In the Staples machine"theseampresser feeds the work and thesetting .tool sets the pressed seam at a time when'thework is supposed to be stationary, the seam-'presser be ing disengaged from the work. But because the seam-setter is swung rearwardly'iin contact with the work to rub the stationary seam much of the rubbing action isdissipated owing to the tendency for the-seam-setter to feed the work... 1 i.

- The principahobject of thepresent invention:

is to produce a seam-pressing machine in which the seam is pressed andfed only by the ,;seam-.

presser notwitstanding that theseam-setterim parts to the pressed seam a vigorous. rubbing action to set it in the position to which it-was brought by the seam presser. I

To the acccmplishmentof this object, and such others-as may appear hereinafter, the various ;.features of the present inventicn residein oertain devices, combinations andfarrangements'of 4; forni of the intention parts hereinafter described and 'then"-pointed out broadly and in detail in the appended claims, pos-' sessing advantages readily apparent to those skilled in thi's art. The various features of the present invention will be readily'understoodfrom an inspection of the accompanying drawing illustratingthe best inventor, in which, I "Figure-1 is a View in left side elevation of a seam.'. ressing machine; i

Fig.12 is a view in sectional elevation on the 3612 F Q h 'Fig; 3 isa detail ;vi'ew in left [side elevation showing the positions the parts adjacent the operatingpoint assume during'thjei initial engage-j merit cf the searn-presser with the work;

{is a detail view'in sectional plan on the -line-4-4,-Fig. 1; p,

i. Fig. 5 is anenlarged view in perspective of the bottomkof the seam presser or'hammeri i i Fig. 6 is a detail view in bottomplan showing the normal relationship between'the members at present known to the v p 4 i I this construction thepresser 16 has not only a ofthe seam-ridge guide and'the salient angle on quarters joined together, flesh faces exposed, by n a curved line of stitches concentric to their ad jacent edges, a v

Theillustrated embodiment ofthe present invention operates upon a workpiece comprising two quarters l6 andll (Fig.9).which are sewed together by a curved'line of stitches 12 concentric, to the adjacent edges. If the quarters are,

leather, the faces engagedin Fig. .8 are grain;

the flesh faces being exposed. The quartersare opened up (Fig. 8), to present a seam-ridge on one face of the work and a seam-crease 14 on" the other face, of the work. l

In the machine [the work's supported upon a roll 15 for the operation of aseam-presser. or hammer 16 and a heated seam-setting or rubbing tool 17. Thehammer 16 .is provided with a roughened triangular work engaging facelS (Fig.

5) ,..the salientangle 19 of which is directed towvards the frontpf the machine.,,.-.The hammer. I a 16 is provided with cylindrical shank 20which is secured to the lower end of a linkv 21 the upvper end of which is formed .as a strap 22 which embraces an eccentric 23 on a horizontal'driving shaft 24 journaled in a frame 25. The link 21 is provided with a slot 26in which is received aguiding block 27 that is pivoted on a stud 28 K (Fig, 2) securedto the frame 25. Asa result of vertical reciprocating movement towards and fromthe work supporting roll? 15, but has also a lateral swinging movement towards and from the back of the machine. Stated in another way, this construction moves the presser 16 through a four-motion cycle to engage the work, to feed the work, to'leave the work,to'returnto its original position above I the "work, and com-.

plete the cycle. g I

The seam-setting orrubbing tool l'Tis carri ed by a bracket 29 projecting rearwardly from a link 30 (Fig. 2) the-upper end of which is formed I as a strap 31 which embraces the eccentric 2 3.

The link30 is provided with a slot 32 in which is received a: guiding block 33 that'is pivotedon a stud 34 secured to .the frame 25. As a result of this construction the seam-setting or rubbing tool 1'7 moves towards and from the Work supporting roll 15 simultaneously with the presser 5 16. The seam-setter 17 also swings laterally towards and from the back of the machine simultaneously with the presser 16. But as the block 33 is pivoted on an axis nearer the eccentric 23 than the axis upon which the block 27 for the presser 16 is pivoted, the lateral swinging movements of the setter 1'? are greater in extent than the similar movements of the presser 16 although their cycles are similarly timed. With this construction and mode of operation'the presser 16 and the setter l7 engage the work initially simultaneously. The presser 16 then moves rearwardly to feed the work. During this movement of the presser 16 the setter 17 moves rearwardly in contact with the work at a greater peripheral speed than the feed of the work. As the bottom of the presser 16 is roughened to maintain the work under its control, the result of the greater movement of'the setter 17 in contact with the work is to rub the seam and set it permanently in the position to which it was brought by the seam-presser 16.

In order to present the seam-ridge properly to thework'support 15, the machine is provided with a guide 35 engaged in the seam-crease, a guide 36 embracing the opposite sides of the seamridge, and a gage 37 engaging the free end face of the seam-ridge.

The seam-crease guide 35 is secured by a screw 38 carried bythe frame of the machine. The free end of the guide 35 terminates close to the work support 15. Near its free end the guide is provided with a horizontal portion having a beveled edge (Fig. 8) for engagement in the seamcrease.

The seam-ridge guide 36 comprises two memhers 39 and 40 arranged to embrace the opposite sides of the seam-ridge. The members 39 and 40 flare inwardly in the direction the work is fed therethrough. The members 39 and .40 are-formed on the lower ends of plates 41 and 42 which are pivoted centrally on'the diverging faces 43 and 44, respectively, of a hexagonal surface 45. The upper ends of the plates 41 and 42 engage diverging faces on a second hexagonal surface 46. The front edges of the plates 41 and 42 near their upper .ends are engaged by a head 47 on a cylindrical shank 48 mounted on a horizontal pin 49 projecting from the front face on the hexagonal surface 45. The members 39 and 40 are pressed towards each other normally by a spring 59, coiled about the shank 48 and the pin 49 and interposed between the head 47 and a tension-adjusting nut 51 threaded on the free end of the pin 49. The movement of the member s 39 and 40 towards each other, under the influence of the spring 50, is limited by a pin 52 projecting laterally from the inside face of the member 39 in position to engage the inside face of the member 40. a

The hexagonal surfaces 45 and 46 are formed on the lower end of a rod 53 mounted to slide vertically in bearings 54 formed on a bracket 55 secured to the frame 25. In order to permit the 41' seam-ridge guide 36 to yield vertically the rod 53 is provided with a collar 55. A spring 56 is coiled about the rod 53 and is interposed between collar 55 and the upper bearing 54. The rod 53 near its upper end is provided with a lateral block 57 similar in construction and mode of operation to the corresponding block disclosed in the patent to Staples hereinbefore referred to. As shown in Fig. 6 the rear ends of the members 39 and 40 extend upon opposite sides of the salient angle 19.

After the quarters are opened up the seam-ridge thereof is introduced between the flaring front ends of the members 39 and 40 of the guide 36. These members converge towards each other so that as the seam-ridge moves rearwardly the members 39 and 40 embrace the opposite sides thereof and confine the sides of the seam-ridge to a'predetermined path. At some point in the passage of the seam-ridge through the guide 36, the members 39 and 40, through their frictional engagement with the seam-ridge, are carried with the seam-ridge rearwardly. But as the plates 41 and 42 are pivoted on surfaces diverging rearwardly, forward movement of the members 39 and 40 spreads them apart mutually (Fig. 7). From an inspection of Fig. 7 it is apparent that the thicker the seam-ridge is laterally the further the ends of the members 39 and 40 are positioned rearwardly along the sides of the salient angle 19.

At the same time the sides of the seam-ridge are engaged by the members 39 and 40, the seamcrease and the end face of the seam-ridge are engaged with the guide 35 and the gage 37, respectively (Fig. 8).

The seam-ridge is pushed through the space bounded by the guides 35, 36 and the gage 37 until the leading end of the seam-ridge projects, unsupported from below, beyond the free end of the seam-crease guide. At this point the hammer 16 1'10 adjacent the salient angle 19 projecting into the space between the members 39 and 40, which confine laterally the leading end of the seamridge, steps upon the unsupported seam-ridge, sets the seam-crease firmly into engagement with the peripheral surface of the work support, and preforms the seam-ridge for the operation of the wider portion of the hammer 16 which rolls the materials of the pieces extending beyond the seam into. engagement with the adjacent faces of the quarters.

The setting of the seam-crease, the rolling of the materials of the faces extending beyond the seam and the four-motion feeding movement of the hammer continue until the seam-ridge passes beyond its influence. In the meantime, the portion of the seam-ridge previously operated upon bythe hammer is fed beneath the heated tool 17 which gives the seam a vigorous rubbing to set it in the position to which it was brought by the hammer.

Nothing herein explained is to be interpreted as limiting the various features of the present invention in the scope of its application to use in connection with the particular machine or the particular mode of operation or both selected for purposes of illustration and explanation. While the particulars of construction herein set forth are well suited to one mechanical form of the invention and to the use to which it is put, it is not limited to this use, nor to these details of construction, nor to the conjoint use of all its features, nor is it to be understood that these particulars are essential since they may be modified with in the skill of the artisan without departing from the true scope of the actual invention, characterizing features of which are set forth in the following claims by the intentional use of generic terms and expressions inclusive of various modifications.

What is claimed as new, is:

tion with a work support, a seampresser, and a tion with a work support, a seam-presser, and a seam-setter, of means for imparting to the 1. In aseam-pressing machine, thecombination with a'work support, a seam-presser, and a seam-setter, of means for imparting to the presser and the setter" simultaneous movements in the same direction towards and from the work support. t I

2. In a seam-pressingmachine, thecombinaseam-setter, of means for imparting to the presser and the setter simultaneous horizontal move ments in contact with the work. 1 i

3. In a seam-pressing machine, the combinapresser and the setter simultaneous vertical movements'towards and from the work support and simultaneous horizontal movements in con I tact with the work. I a

4.- In a seam-pressing machine, the combination with a work support, a seam-presser, and a seam-setter, of means for imparting "to the presser and the setter simultaneous dififerential horizontalmovements in contact with the work.

5. In a seam-pressing machine, the combination with a work support, and a four-motion seam-presser for pressingthe seam and feeding the work during its cycle, of a' four-motion seamsetterfor setting the pressed seam duringthe feeding movement, and [a seam-setter, of means for imparting to" the seam-setter a greater horizontal movement in contact, with the work during the feed than is imparted to the seam-pre'sser.

8. In a searn pressing machine, the combination with a work support, a seam-presser, and a seam-setter, of means for operating the'presser and the setter comprising a common eccentric,

an eccentric strap and slotted link connection for the presser and the setter, respectively, and blocks pivoted on dififerent axes and engaged I with the slotted links, respectively.

9. In a seam-pressing machine, the combination with a work support over which is fed workv in the form of two pieces sewed together by 5 seam presenting a seam-ridge on one face of the work and a seam-crease on the other face of the work, and a seam-presser cooperating with the work support to press the seam, of means for 'guidingthe work to the seam-presser including two members embracing the opposite sides of the seam ridge I and movable both laterally and [longitudinally of the seam-ridge thereby.

10. In a seam-pressing machine, the combination with a work supportover which is fedwork in the form of two pieces sewedto'gether by seam presenting a seam-ridge on'one face of the worki and a seam-crease on the other face of the work, and a seam-presser cooperating'with the work support to press the seam, of means for guiding the work to the seam-presser including two members embracing the opposite sides of the seam-- ridge and movable thereby mutually both laterally and longitudinally of the seam-ridge.

11. In a seam-pressing machine, the combination with a work support over which is fed work in the form of two pieces sewed together by a seam presenting a seam-ridge on one face of the work anda seam-crease on the other face ofthe work, and a seam-presser cooperating with the work support to press the seam, provided with a triangular work engaging face presenting a salient angle towards the front of the machine,

of means for guiding the work to the seampresser including two members embracing the opposite sides or the seam-ridge and receiving said salient angle between them.

7 12. In aseam-pressing machine, the combina tion'with a work support over which is fed work in the form of two pieces sewed together byfa seam presenting, a seam-ridge" on one face of the work-and a seam-crease on the other face of the I work, and a seam-presser cooperating" with the work support to press the seam, provided with a triangular work engaging face presenting a salient angle towards the front of the machine,

of means for guiding the work to the seampresser including two members embracing the opposite sides of the seam-ridge and receiving said salient angle between them and movable both laterally and, longitudinally under the spreading influence ofthe seam-ridge to accornmodate themselves to different lateral thicknesses of seam-ridges, and to locate their free ends further back along the sides of the salient angle, respectively. I,

-WALTEB' P. OSGOOD.

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