US2089257A - Welt support for sole attaching machines - Google Patents

Description

Aug. 10, 1937. J. B. HADAWAY 2,089,257

WELT SUPPORT FOR SOLE ATTACHING MACHINES Filed Nov. 19, 1954 sshe'ets-sneet 1 (iii)- hag/ENTER. l I I r, I

Aug. 10, 1937. J. B. HADAWAY 2,089,257

WELT SUPPORT FOR SOLE ATTACHING MACHINES Filed Nov. 19, 1934 5 Sheets-Sheet 2 Aug. 10, 1937. HADAWAY 2,089,257

WELT SUPPORT FOR SOLE ATTACHING MACHINES Filed Nov. 19, 1934 5 Sheets-Sheet 3 ivvE/WU I Aug. 10, 1937. I J. B. HADAWAY 2,089,257

WELT SUPPORT FOR SOLE ATTACHING MACHINES Filed Nov. 19, 1954 s Sheets-Sheet 4 -iiiji Aug. 10, 1937. HADAwAY 2,089,257

WELT SUPPORT FOR SOLE ATTACHING MACHINES Filed Nov. 19, 1934 5 Sheets-Sheet 5 ZJ/VENTUR: W $2? JZ- Patented Aug. 10, 1937 STATES PATENT OFFIQE 2,089,257 WELT-SUPPORT FOR SOLE ATTACHING lVIA-' CHINE John B. Hadaway, Swampscott, Mass, assignor to United Shoe Machinery Corporation, Paterson, N. J., a corporationof New Jersey Application November 19, 1934, SerialNo. 753,571;

15 Claims.

grused in other. machines where a similar structure or function isdesired. In the present instance; the, invention. is. shown as applied to a solefattaching machine in which a cemented sole sattached toa; shoe by the application of pressure.

Itxisan objectof the invention to provide an improved-welt, support which willibe easily operable and adaptable toshoes ofi'a wide range of sizes: andshapes, and an important feature of 'a the invention consists in the provision of a welt support. which is vertically comformable in shape tothe Welt crease ofa. shoe, in combination with means for locking it rigidly in its conformed shape.

In apreferred form of. the invention the welt support .asa whole may comprise a series of separate feet; each attached to a yieldingly mounted leg, Wit-11' means for simultaneously looking all of the'legsagainst vertical yielding after the feet have been: conformed to a welt crease, in order that.the=vertical:contour ofithe welt shall be accurately preserved when pressure is applied to the sole, and the welt and the margin of the sole shall: be pressed securely together.

Another feature of the invention which facilitates. the: operation of the machine upon a shoe resides-in a sectional welt support provided with means; as a spring or springs, for conforming it to the welt crease of a shoe, and means for spreading apart the sections to permit the shoe to be readily inserted or removed.

Further.- features of the invention relate to improvements in details of the welt engaging feet and other parts of the mechanism, all contribut- -.ingtoease and speed of operation and superior results.

A more complete understanding of the invention will! begained from reading the following detailed;- description of a preferred embodiment thereof in connection with the accompanying drawings, in which Fig. 1' is a view in front elevation of a portion of a sole attaching machine equipped with awelt supportembodying the invention;

Fig. 2 is a View on an enlarged scale with the welt support shownlpartly in elevation and partly in longitudinalsection upon" the-line 11-11 of Fig. 5;

Fig. 3 isa-view in end elevation, looking fromthe left, of thefimachinaas seen in Fig. 1, parts beingbroken away, to reveal certain details more clearly; a 1

Fig. 4 is-a view showing the head of the machine in-rearelevation;

Fig. 5-isa plan view of. the machine;

Fig. 6-is across section upon the line VI-VI- O fF gZ Figs. 7; 8, 9,10,11 and 12;are;views illustrating details; 0% the feet and legs of the, welt support.

Thesole attaching machine comprises a frame lflupon which-is mounted a bracket l2. The outer end of this bracket supports a pad box Mcontaininga-pressure pad; IB whichmay either be solid or filled with water or compressedair in a mannenalready known in the art.

The bracket- IZ" also carries anupright- I8 braced-totheframe lflby diagonal bars 20 (see Figs. 3 and i A- walking-beam pressureapplying member 22; is secured to a shaft 24 which is journaled; in bearings 26' in the upper portion of the upright l8; "Ihe'rear end of the walking beam 22,- is piyotallyponnected .to a piston 28- which operates vertically in a stationary cylinder 30; bolted: upon the bracket 12; providesfor introducing fluidunder pressure to the cylinder at will; when it is desired to move the piston upward! The front end of the walking beam 22 carries a head 34 from which dependa toe post 36 anda heel post 38'. The toe post: carries a pad 40 (Fig; 2) adapted to bear upon the top of the forepart ofthe 'shoe and its upper end is threaded into the head- 34 to provide for vertical adjustment, it beingsecured in adjusted position by a set screw 42 bearing upon a brass or other soft metal plug 44- which; engages the threaded upper endio'f the toe post.

A; last pin 4.61 is pivoted at 4am the lower end of the heel post 38, an upward extension 50' of the last pin being pivoted to a'link 52'surrounded by a compression spring 54- to form a toggle, which, under the influence of the spring, tends to remain in broken condition'upon either side of dead center to which it may be moved. When the pin 46 is swung to-the right, as seen in Fig. 1, it is-in position to receive a last 56 and when the' forepart of the shoe 60 upon the last is moved up against the toe pad 40 the toggle30, 52- will assume the illustrated position and the spring :54iwill exert enough force upon the last A pipe line 32 from the plate I4 (see Fig. 2).

to hold the shoe up against the toe pad. The lasted shoe, with a cemented outsole 62 positioned upon it, is now ready to be lowered into contact with the pad I6 to apply sole attaching pressure. This is accomplished by introducing fluid under pressure into the cylinder 30.

Inasmuch as the pad I6 of the sole attaching machine is more or less yielding in character, there is a tendency to roll up the projecting margin of an extension edge sole unless such margin is supported in such a manner as to prevent this from happening. Also, in the case of a welt shoe,

it is important that the projecting portion of the For the purpose of supplying such support for I the welt, which is shown at 64, I provide a welt support consisting of a series of independent feet 66 arranged around the forepart of the shoe and I adapted to be fitted into the welt crease and locked against vertical yielding before the pressure is applied. Each of the feet 66 is separately carried by a leg comprising a lower section 68 and an upper section I0 connected by a universal joint 12 of the ball and socket type arranged to permit the leg section 68 to swing in any direction. The upper leg section 70 is slidably arranged in guide holes passing through a plate 14 bearing against the under sideof the head 34 and a carrier I6 which is guided for vertical movement upon the toe post 36 and upon a sleeve I8 which depends Expansion springs between the plate 14 and the carrier I6 tend constantly to keep the plate and carrier apart but permit the plate to be moved downward toward the carrier for a purpose now to be described.

Each upper leg section 10 is surrounded by a slidable sleeve 82 between which and the carrier I6 in an expansion spring 84. A locking dog having a nose 86 and a tail 88 is pivoted at 90 between ears 92 upon the sleeve 82. The rounded end of the tail portion 88 of the dog is received in an annular groove 94 in the carrier 16. Normally the sleeve 82 is lifted by the spring 84 until the nose 86 of the locking dog engages the upper leg section I0, locking the sleeve to said leg section so that when the carrier I6 is depressed in the pressure applying operation of the machine, carrying the locking dog downward with it, the welt supporting leg is also carried downward positively through the same distance.

In order to provide for unlocking the Welt supporting leg from the carrier I6 the plate 14 is adapted to be depressed by a cam 96 operated [by a handle 98 pivoted at I00 tothe head 34. When the plate 14 engages the upper ends of the sleeves 82 they will all be simultaneously lowered against the tension of the springs 84 until the bite of the locking dogs upon the welt supporting legs I0 is released. When this condition obtains, the legs may be moved up or down easily through the carrier I6 and the plate I4, a friction plug I02 pressed upon by a spring I04 being provided in connection with each leg to sustain the leg in any vertical position at which it is left.

In order to swing the lower leg sections 68 and the welt supporting feet 66 into or out of the welt crease of the shoe, such swinging occurring about the ball and socket joints I2, each lower leg section 68 is connected through a pull spring I06 and apivoted strut I08 to a pin I I0 which is screw threaded for vertical adjustment through a table I I2 carried by a hub II4 guided to slide vertically upon a sleeve II6 which surrounds the toe post 36. Vertical sliding movement is imparted to the hub I I4 by a bell crank lever H8 which is pivoted at I20 in a bracket I22 depending from the carrier I6, one arm of the lever II8 being pivotally connected at I24 to the sliding hub H4 and the other end of the lever carrying a roll I26. arranged to be engaged by an actuating bar I28 in response to a treadle operation to be described later. The spring I86 and the pivoted strut I08 are connected to the leg section 68 by a clip I30 and the tip of the strut is pointed to engage in a notch I32 in the side of the pin H0.

1 From the foregoing it willbe apparent that when the table I I 2 is lowered the welt supporting feet 66 will be swung yieldingly inward toward the shoe by the pull exerted upon the springs I06, the parts being in approximately the relation illustrated in Fig. 2. When the table H2 is raised the points of the struts I08 will engage in the I interposed between the carrier I6 and the left hand arm of the lever I I8 tends to move the lever in .a.counterclockwise direction about the pivot I28 and to lower the table II 2, drawing the feet 66into engagement with the welt crease of the shoe. Movement in the opposite direction is effected by moving the actuating bar I28 into engagement with the roll I26, causing the lever II8 to be turned in a clockwise direction about its pivot I20. This movement of the actuating bar I28 may be accomplished by hand, foot treadle or power. As shown, the bar I28 is pivotally supported at its upper end by a link I36 which is pivoted to the upright I8 at I38 and the lower end of the bar is pivoted to a link I40, which in turn is pivoted to the upright I8 at I 42, the result being that when the links I36 and I40 are swung about their pivots in a counterclockwise direction the bar I28 is moved into engagement with the roll I26, the table H2 is lifted, and the welt supporting feet are swung outward away from the shoe. A connecting link I44, shown in dotted lines in Figs. 1, 4 and 5, joins the swinging link I40 to the upper end of an arm I46 which is secured to a rock shaft I48 having a lever I50 draw the arm I46 to the right, as viewed in Fig. 1, moving the actuating bar I28 away from the roll I26 and permitting the spring I34 to depress the table H2 and close the welt support around the shoe. The lever I50 maybe manually or treadle actuated to open the welt support.

The toe post 36 is surrounded by a heavy compression spring I52 which is interposed between the welt support carrier 16 and the head 34 whereby the carrier and the welt support are permitted to yield upward slightly upon the toe post in case the toe pad 40 should yield sufficiently under the pressure applied by the machine to cause excessive downward pressure to be, exerted upon the welt.

As illustrated, the welt support as a whole comprises fourteen welt engaging feet 66 and thesewith their associated supporting legs are in general of similar construction, but there are differences in the details of some of them. Identifying them by the letters of the alphabet from A to N, as in Fig. 5,'those designated by D and J are provided with the sole positioning gages illustrated in Figs. 9, 10, 11 and 12, Figs. 9 and 10 upon its outer end. A pull spring I52 tends to r showing the gage associated with the element J, and Figs. 11 and 12 showing that associated with the element D. Referring to Figs. 9 and 10, the foot 5% is provided with an outward extension I54 having cut in it a T-slot to provide guiding means for a slide I56 which carries a sole edge engaging finger and is moved yieldingly toward the sole edge by a spring I60. The end of the finger I58 is corrugated, as shown at I62, to permit the. gage finger to grip the sole edge securely. As illustrated in Figs. 11 and 12, the gage construction diifers from that just described in that the spring I58 is omitted and a positively acting manually operated adjusting lever IE4 is connected by an eccentric pin I66 to the slide carrying the gage finger I58, the construction being such that after the gage has been set it will not yield relatively to the foot plate 66, but all the yielding necessary to accommodate the gage mechanism variation in the width of the sole relatively to that of the shoe at the welt crease will occur in the gage at position J. All of the welt supporting feet are pivoted to their respective legs as shown at I'IB to permit them to-conform readily to the vertical contour of the surface of the Welt.

The three supporting feet at positions F, G and H around the toe end of the shoe are also provided with tilting means illustrated in Figs. 2 and 7, wherein the pivot H0 is carried by a lever Ii? which is pivotally mounted at I14 in the forked lower link section 68 and has a segmental upper end which occupies a notch I76 in a draw bolt I23 which may be tightened or loosened by turning athumb nut I65), thus permitting these three welt engaging elements to be tilted to meet the requirements at their locations.

Inasmuch as the aggregate length of the fourteen feet 65 is sufficient to encompass a shoe of large size, it is desirable to provide for the removal of one or two of them when it is desired to constrict the welt support to fit a shoe of small size. Provision for this is illustrated in Figs. 7 and 8 in which the swinging leg sections of the welt supporting elements at positions F and H are illustrated as equipped with a shiftable connection between the l g section and the strut I08. In this case, the clip I39 is replaced by a slide I82 having in its lower face two notches I84 either of which is engageable by a spring pressed finger operated latch I86. When the latch I86 is in the inner notch, as illustrated in Fig. 8, the leg 68 is operated in the same manner as the other legs of the. series, but when the latch is released and the slide I82 is pushed to the right until the latch engages in the outer notch I84 the point of the strut IE8 is permanently engaged in the notch I32 and the leg 68 always stays swung outward far enough not to interfere with the closing together of the remaining welt engaging feet to fit the small size shoe. This throwing of the elements at positions F and H into or out of action requires but a moment and greatly facilitates the accommodation of shoes of a large range of sizes. By reason of the extra inward force required to be applied to the elements carrying the sole gages, the swinging leg sections t8 at positions D and J are connected positively, but adjustably, to the table IE2 instead of through springs like those shown at lilii. In this case the vertically adjustable pin I58 is threaded into the table I I2 in the same manner as the pins H9, but is positively connected by a link IQII to the clip I30 upon the leg 58. The gage I 58 is therefore moved positively to a predetermined position and serves to determine the transverse position of both the sole and the shoe.

The feet 66 are formed variously according to their positions, but in all cases taper to a thin edge adapted to enter the welt crease of a shoe. For example, the foot at position A has a long shank portion I92 (Fig. 2) to permit it to reach in under the overhanging portion of the lasted upper at the inside of the shoe back of the ball line. Others of the series of welt engaging feet 66 are made double ended as shown at I94, I96 in Fig. 3, one edge portion being wider than the other. Inasmuch as the foot may be readily reversed by merely loosening one of the screws of the clip I35, either the wide edge portion I96 or the narrow edge portion I94 may be used as required by the nature of the work in hand.

The operation is as follows: The lever I59 being lifted, the welt supporting elements are all thrown outward away from the space to be occupied by the shoe. A lasted shoe is jacked upon the last pin it, the toe portion of the shoe being positioned against the toe pad 45 where it is held by the last pin spring ti l.

The lever I58 is now released, permitting the spring I52 to move the actuating bar I28 out of contact with the roll I28 whereupon the spring I34 acts to lower the table I I2 and swing the lower leg sections 68 and the feet 66 carried thereby inward into engagement with the shoe. If the welt support as a whole does not conform exactly to the vertical contour of the welt crease of the shoe, the cam 95 is thrown over by depressing the handle 98 thus lowering the table I4 upon the sleeves 82 and unlocking all of the upper leg sections it so that the welt support may easily be conformed to the welt crease. The handle 38 is then thrown up, permitting the springs 80 to raise the table I I, and the springs 84 to lift the sleeves 82 and simultaneously look all the welt supporting legs to the carrier I6.

If the sole 62 has not already been spotted upon the shoe, it is now placed in position between the sole gages I 58, I68 and the parts are as illustrated in Figs. 1, 2 and 3 of the drawings. Fluid under pressure is now admitted to the cylinder 30 causing the piston 23 to rise and the head 34 to descend, moving the shoe downward and pressing it heavily upon the pad I6. Inasmuch as the welt support is locked to the carrier 16 which in turn is mounted upon the toe post 36, it will be seen that there is no possibility of the welt support yielding upward under the pressure exerted by the pad I6, with the exception of the slight amount of yield permitted by the heavy spring I52 in case the toe pad should yield slightly, and that the projecting welt and sole extension will be kept flat and pressed tightly together so that a firm adhesive bond between them will result.

After the necessary time interval, the pressure is released and the head 34 rises, carrying the shoe upward to the position shown in Fig. 1. The lever I56 is now lifted, causing the welt support to be opened and the shoe to be released so that it can be removed from the machine.

Having described the invention, what is claimed as new and desired to be secured by Letters Patent is:

1. In a sole attaching machine, a carrier, a welt support comprising a series of feet which are independently movable vertically in the carrier to conform the support as a whole to the welt crease of a shoe, and means for simultaneously locking all of said feet against vertical movement.

2. In a sole attaching machine, a welt support comprising a series of welt engaging elements a carrier in which said elements are independently movable vertically to conform the support as a whole to the vertical contour of the welt crease of a shoe, and means for simultaneously looking all of said elements in their conformed positions.

3. In a sole attaching machine, a welt support, a carrier in which said support is mounted to yield in a direction normal to its welt engaging face, and means for locking the support in said carrier with its welt engaging face in position to engage the welt of a shoe.

4. In a sole attaching machine, a sectional welt support of which the sections are mounted to yield vertically independently, and means for simultaneously looking all the sections together.

5. In a. sole attaching machine, a yieldingly mounted carrier, a welt support mounted in the carrier to yield easily relatively thereto, and means for locking the welt support unyieldingly in the carrier.

6. In a sole attaching machine, a yieldingly mounted carrier, a sectional welt support of which the sections are mounted to yield independently in the carrier, and means for looking all the sections unyieldingly in the carrier.

'7. In a sole attaching machine, a carrier, a welt support frictionally supported in the carrier, and means for locking the welt support to the carrier.

8. In a sole attaching machine, means for applying pressure to the outsole of a shoe, a frictionally supported, yieldable welt support arranged to oppose the pressure applying means, and means for locking the welt support against yielding in its frictional support.

9. In a. sole attaching machine, a welt supporting foot, a leg to which said foot is attached, a universal joint in said leg, and a carrier in which said leg is slidably supported.

10. In a sole attaching machine, a welt support comprising a plurality of feet, each adapted to enter the welt crease of a shoe, a plurality of legs, each carrying one of said feet, supporting means for said legs, and a universal joint in each leg.

11. In a sole attaching machine, a welt support comprising a plurality of welt engaging sections each of which is independently mounted for both vertical and lateral movement, to permit the support as a whole to conform to the welt crease of a shoe.

12. In a sole attaching machine, a welt support, a carrier in which said support is mounted to yield in a direction normal to its welt engaging face, automatic locking means normally preventing the support from yielding, and manually operable unlocking means operable to permit the support to yield.

13. In a sole attaching machine, a double ended welt-supporting foot having welt supporting ends of different lengths, said foot being mounted reversibly to permit either end to be engaged at will in the welt crease of a shoe.

14. In a sole attaching machine, a welt supporting foot, a leg to which said foot is attached, a universal joint in said leg, a movable slide, a yieldable connection between the slide and the leg, and means for moving the slide to swing the leg and foot yieldingly about said universal joint.

15. In a sole attaching machine, a welt support comprising a plurality of independently movable welt engaging sections, means for moving all of said sections into the welt crease of a shoe, means for moving all of said sections outward, away from the shoe, and means operable at will to maintain one or more of said sections in outward position, away from the shoe.

JOHN B. HADAWAY.

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