US1861654A - Rounding and channeling machine - Google Patents

Description

June 7, 1932. BOURGEGls 1,861,654

ROUNDING AND CHANNELING MACHINE Filed Sept. 19, 1930 Fig.1

Patented June 7, 1932 STATES MACHINERY CORPORATION, OF PATER-SON,

JERSEY NEW JERSEY, A CORPQli-ATION OF NEW ROUNDING AND CHANNELING MACHINE Application filed. September 19, 1930. Serial No. 483,034.

This invention relates to improvements in machines for operating upon the soles of shoes and is herein illustrated as embodied in a rounding and channeling machine of the 5 type disclosed in United States Letters Pat-- ent No. 600,883, granted March 22, 1898, upon application of iv. C. Meyer and Z. T. French. Although not limited in its application thereto, the invention is herein set forth with particular reference to the rounding and channeling of soles which have been applied to shoes in the process of repairing the shoes. The invention, moreover, is not necessarily limited to machines for performing both a rounding and channeling operations nor to machines of the particular type disclosed in the patent referred to.

Machines of the type referred to are provided with a reciprocating trimming knife, a feed plate arranged to engage the upper or ex posed face of the welt of a welt shoe and adapted to serve also as a cutting block for the knife, and a work gage fixed to the feed plate for engaging the previously trimmed edge of the welt to guide the shoe as it is being fed pastthe knife. The illustrated machine, however. is further provided with means adapting it for operation also upon the soles of shoes of types having no previously trimmed welt or its equivalent to be engaged by the edge gage, such, for example. as McKay-sewed shoes. turn shoes, and shoes in which adhesive is employed as the sole attaching means. For this purpose, in the illustrated machine, a second gage is provided for guiding a shoe by engagement with the,

shoe upper and the two gages are mounted for movement to and from operative position. Moreover. the two gages are so connected that when either gage is moved into operative position the other gage will be moved into an inoperative position. Thus, when a welt shoe is to be operated upon the welt edge gage will be operatively positioned while the upper gage will be inoperatively positioned. 0n the other hand when a McKay-sewed shoe or turn shoe is to be operated upon the upper gage will be operatively positioned, while the welt edge gage will be moved into an out-of-the-way position. A

machine having welt and upper gages constructed and arranged as above described is disclosed in a co-pending application Serial No. 447,701, filed April 26, 1930, upon the joint application of O. L. Sherman and the present inventor. In the machine of the application just referred to the welt edge gage when operatively positioned is located between the feed plate and the trimming knife and the trimming knife is movable through an opening in the edge gage into engagement with the rear face of the feed plate, this construction enabling the knife to operate effectively and without specialadiustment for the particular type of work which is being open ated upon, although the knife does not have a true chopping action when the edge gage is operatively positioned and'the machine is operating upon the sol-es of welt shoes.

One object of the present invention is to enable the reciprocating-trimming knife of a machine of the above type to cut with a chopping action when trimming the soles of welt shoes, as well as when trimming the soles of McKay-sewed shoes, turn shoes, or shoes with adhesively secured soles, in order to facilitate the making of a clean cut when operating upon welt shoes having outsoles cut from inferior or spongy stock.

To the accomplishment of this result one feature of the present invention consists in the combination, in a machine for trimming the soles of shoes. of a cutting block adapted for use in trimming the soles of welt shoes, a second cutting block movable to and from a position wherein its cutting surface is disposed in a different plane from that of the first cutting block for use in trimming the soles of shoes other than welt shoes, and a movable trimming knife adaptable for cooperation with either of said cutting blocks to trim a shoe sole by a chopping action. In the illustrated machine one cutting block is carried by the feed plate while the other cutting block is carried by an edge gage which is movable to and from an operative position between theknife and the feed plate, and provision is made for adjusting the range of movement of the trimming knife to shift the forward limit of the knife stroke from one position in which the knife is adapted to out against the cutting block carried by the feed plate to another position in which the knife is adapted to out against the cutting block carried by the edge gage. Thus, by adjusting the range of movement of the knife according to the class of work to be operated upon, and by appropriately adjusting the edge and upper gages, the present machine may be readily adapted for use in operating upon either welt shoes or shoes in which the tread sole is directly secured to the upper. The illustrated means for adjusting the range of movement of the trimming or rounding knife comprises an eccentric pivotal connection between an oscillatory arm which carries the knife and amember which actuates the knife arm. The eccentric connection herein shown is adapted to be readily turned to effect the desired adjustment, means including a spring-pressed detent being provided for determining the proper positions of adjustment of the eccentric connection and for locking it in said positions.

The invention will be explained with reference to the accompanying drawing, in which Fig. 1 is a view, in side elevation, of so much of a rounding and channeling machine as is necessary. to illustrate the application of the present invention thereto, the machine being shown in operation upon the sole of a welt shoe;

Fig. 2 is a view in front elevation of the parts shown in Fig. 1; Fig. 3 is a side elevational view of the machine as it appears when operating upon the sole of a McKay-sewed shoe;

Fig. 4 is a detailed sectional view on the line IV-IV of Fig. 1; and

Fig. 5 is a detailed perspective view of the edge gage used for guiding a welt shoe.

In the drawing, the invention is shown as embodied in a rounding and channeling machine of the general type disclosed in Letters Patent No. 600,883, hereinbefore referred to. The illustrated machine is provided with a four-motion feed plate arranged to engage the upper surface of the welt, in a welt shoe (or the corresponding portion of the projecting sole margin of a shoe in which no welt is employed such, for example, as a McKay-sewed shoe or a turn shoe) a sole support in the form of an anti-friction roll 12 which is movable back and forth to cooperate with the feed plate 10 in feeding the work; a fixed work support or crease guide 14 shaped to enter the usual crease between the welt, or sole margin and the upper of a shoe; a vibratory rounding knife 16 which is movable toward the feed plate to trim the tread sole of the shoe; and a channel knife 18 which is movable with the sole support; The rounding knife 16 is secured to the lower end of an arm 20 the upper end of which is mounted for oscillatory and axial sliding movement upon a fixed rod 22. The knife arm 20 is oscillated or vibrated by means of an eccentric 24 on the main shaft 26 of the machine, the eccentric being connected by an eccentric strap 28 with the arm 20. Except as hereinafter otherwise described, the above-mentioned parts are substantially the same in construction and have substantially the same mode of operation as corresponding parts disclosed in said patent and accordingly it will be unnecessary to describe these parts further herein.

The illustrated machine is rendered adaptable for use in operating both upon welt shoes and upon McKay-sewed shoes (or other shoes in which the tread sole is directly secured to the upper) for the purpose of rounding, or rounding and channeling, soles which have been applied to the shoes in the process of repairing them, by the provision of an edge gage 30 which is movable to and from position for use in guiding a welt shoe and an upper gage 82 which is movable to and from position for use in operating upon a McKaysewed shoe or other shoe in which no welt or equivalent shoe bottom element is employed. The edge gage 30, as best shown in Fig. 5, comprises a plate carrying at one end a cutting block 34. As shown, the cutting block 3st consists of a flat piece of hardened metal which is dovetailed to the arm 30, as indicated at 36 5), and which is shaped to provide an edge gage face 88 and a flat surface adapted to be engaged by the rounding knife 16 and to perform the function of a cutting block to insure the making of a clean cut by the knife. Except for the above-described details of construction of the edge gage 30, this gage, together with the upper gage 32, and the means whereby these gages are connected and mounted, are substantially the same as corresponding parts disclosed and claimed in the co-pending application Serial No. 447,701, hereinbefore referred to. In order better to facilitate on understanding of the present invention, however, the construction and arrangement of these parts will be briefly described herein.

The upper gage 32 comprises a roll 40 the periphery of which is shaped transversely to conform approximately to the heightwise curvature of the upper of a shoe in the vicinity of the crease between the upper and the sole. The gage roll 40 is mounted to turn idly at one end of an arm l2 the opposite end of which is rigidly secured to the front end of a rocker stud 44 to the rear end of which is rigidly secured the edge gage arm 30. The rocker stud 44 is mounted to turn in a suitable bearing formed in the upper portion of the feed plate 10. The gages 30 and 32 are arranged respectively behind and in front of the feed plate 10 and they proj ect radially from the rocker stud 44 at such angles with respect to one another that when the edge gage is operatively positioned the upper gage will be located in an out-ofthe-way position and when the upper gage 40 is operatively positioned the edge gage 30 will be located in an out-of-the-way position. Means is provided comprising a latch 46 for locking the gages 30 and 32 in both operative and inoperative positions. For this purpose the latch 46 is pivotally mounted at 48 and is urged yieldingly by means of a spring 50 toward a position in which the lower end of the latch engages with one or the other of two peripheral notches 52 and 54 in a disk 56 rigidly secured to the front portion of the rocker stud 44. The notches 52 and 54 are so disposed radially in the periphery of the disk 56 that when the latch engages the notch 52 the edge gage 30 will be operatively positioned and the upper gage 40 inoperatively positioned and when the latch operatively engages the notch 54 the upper gage 40 will be operatively positioned and the edge gage 3O inoperatively positioned.

lVhen operating upon McKay-sewed shoes, turn shoes, or other shoes in which the tread sole is directly secured to the upper, the rounding knife 16 0f the illustrated machine is adapted to co-operate with a cutting block 60 (Fig. 1) in the rear face of the feed plate 10 in the same manner as the rounding knife of the machine disclosed in the co-pende ing application herein referred to. When operating upon the sole of a welt shoe, however, the rounding knife of the illustrated machine is adapted to cooperate with the cutting block 34 carried by the welt edge gage arm 30. To adapt the rounding knife of the illustrated machine to co-operate as above described with the cutting block 60 when operating upon McKay work and with the cutting block 34 when operating upon welt work, provision is made whereby the operator may adjust the range of movement of the rounding knife in accordance with the character of the work upon which the machine is to operate. As herein shown, this adjustment is effected by turning an eccentric bushing 64 which constitutes part of the pivotal connection between the knife arm 20 and the eccentric strap 28 which actuates the knife arm.

As best shown in Fig. 4, the eccentric bushing 64 surrounds a stud 66 which is fixedly secured to the knife carrier arm 20, the arm 20 being clamped against a shoulder 68 on the stud 66 by means of a nut 70 on the stud.

The eccentric bushing 64 is confined between.

the knife carrier arm 20 and a head'72 on the stud 66 and is adapted to be turned on the stud by means of a knurled enlargement or knob 74 which is counterbored to receive the head 72.

For the purpose of shifting the range of movement of the knife 16 the eccentric bushing 64 is adapted to be turned 180 between two positions determined by the engagement of aspring detent 76 with one or the other of two sockets 78 and 80 in the bushing 64. As shown, the detent 76 is mounted in a socket 82 in the eccentric strap 28 and the inner end of the detent 7 6 is rounded to permit the detent to be readily disengagedfrom the sockets in the bushing 64 when the bushing is turned.

lVhen the detent 76 is in engagement with the socket- 7 8 in the bushing 64 and the gages 30 and 32 are positioned as shown in Fig. 1, the machine is adapted to operate upon the soles of welt shoes, the knife 16 being then adapted to out against the cutting block 34 carried by the edge gage 30. To adapt the machine for operation upon the soles of McKay-sewed shoes or shoes of other types in which the tread sole is directly secured to the upper, it is only necessary to turn the eccentric bushing 180 until the detent '76 engages within the socket 80 in the bushingand to rotate the gages 30 and 32 from the positions shown in Fig. 1 to the positions shown in Fig.3. This adjustment of the eccentric bushing shifts therange of movement of the knife 16 so that when the knife isat the forward limit of its stroke it will out against the cutting block 60 carried by the feed clamp 10, the edge gage 30 having been withdrawn from operative position between the feed clamp 10' and the knife. With the above construction it will be seen that the knife will cut with a true chopping action whether the machine is adjusted for trimming soles of welt shoes or for trimming the soles of other types of shoes, such as McKaysewed shoes. Such a cutting action will in-' sure the making of a clean cut evenif spongy stock, or stock which is otherwise of inferior quality, is being operated upon.

Having described my invention, what I claim as new and desire to secure by Letters Patent of the United States is r 1. In a machine for trimming the soles of shoes, in combination. a movable trimming knife, a cutting block, and a second cutting block movable to and from aposition between the first cutting block and the knife to co-operate with said knife in lieu of the first cutting block, said knife being adjustable to out against one cutting block when operating upon one class of work and to out against the other cutting block when operating upon another class of work.

2. In a machine for trimming the solesof shoes, in combination, a reciprocating trim-' ming knife, a cutting block, and a work gage movable to and from operative position between the knife and the cutting block, said knife being constructed and arranged to out against the. cutting block when operatmg upon one class of work and tocut against a surface of the work gage when operating uponanother class of work.

3. In a sole rounding machine, in combina tion', afeed plate having a surface adapted to serve as a cutting block, an edge gage movable to and from operative position and having a surface adapted to serve as a cutting block, and a reciprocating rounding knife constructed and arranged to out against the edge gage in rounding the soles of welt shoes and to out against the feed plate in rounding the soles of shoes without welts.

, 4. In a machine for trimming the soles of shoes. the combination with a reciprocating trimming knife. of a cutting block. and a work gage movable to and from an operative position between the knife and the cutting block, of means for adjusting the forward limit of movement of the knife from one position in which the knife is adapted to out against said cutting block while said gage isinoperatively positioned to another position in which the knife is adapted to cut against a surface on said gage while the latter is operatively positioned.

5. In a machine for trimming the soles of shoes, in combination, a reciprocating trimming knife, a work support having a cutting block surface for co-operating with the knife, a work gage movable to and from an operative position between the knife and the work support and having a cutting block surface for co-operating with the knife, and means for shifting the range of movement of the knife from one locality in which the forward limit of the knife stroke is in the plane of the cutting block surface of said work support to another locality in which the forward 7 limit of the knife stroke in the plane of the cutting block surface of saidgage.

6. In a rounding machine of the type having a feed plate and a reciprocating trimming knife adapted to out against a surface on the feed plate, the combination with an edge gage movable to and from an operative position between the knife and the feed plate, of means for adjusting the forward limit of movement of the knife to adapt the knife to cut against a surface on the edge gage when the latter is operatively positioned.

7 In a rounding machine, the combination with a feed plate and a reciprocating trimming knife adapted to cut against the surface of the feed plate, of an edge gage movable to and from an operative position between the knife and the feed plate. a knife carrier, an actuator for the knife carrier. and a; connection between the actuator and the knife carrier, said connection being adjustable to adapt the knife to out against a surface of said edge gage when the edge gage is operatively positioned.

8. In a. rounding machine, the combination with a feed plate and a reciprocating trimming knife adapted to out against the surface of the feed plate, of an edge gage movable toand from an operative position between the knife and the feed plate, a knife carrier, an actuator for the knife carrier, and an eccentric between the actuator and the knife carrier, said eccentric being rotatable between two positions in one of which the knife is adapted to out against the feed plate and in the other of which the knife is adapted to out against the edge gage.

9. In a rounding machine, the combination with a feed plate and a reciprocating trimming knife adapted to cut against the surface of the feed plate, of an edge gage movable to and from an operative position between theknife and the feed plate, a knife carrier, an actuator for the knife carrier, an eccentric connecting the actuator with the knife carrier, said eccentric being rotatable between two positions in one of which the knife is adapted to cut against the feed plate and in the other of which the knife is adapted to cut against the edge gage, and means for securing the eccentric in each of said two positions.

10. In a rounding machine, a reciprocating rounding knife, work supporting and feeding means including a feed plate having a surface adapted to be engaged by the knife in trimming the soles of shoes of the type wherein the upper is directly secured to the tread sole, an edge gage movable to and from an operative position between the feed plate and the knife for guiding welt shoes by engagement with a bottom member previously trimmed substantially to final shape, an actuator for said knife, an eccentric con nection between the actuator and the knife adapted to be turned to shift the forward limit of movement of the knife from one po sition in which the knife is adapted to cooperate with the feed plate while the gage is occupying an inoperative position to another position in which the knife is adapted to out against a surface of the edge gage while the latter is occupying an operative position, and a spring-pressed detent for holding said eccentric in said two positions. said detent being releasable by rotation of the eccentric.

11. In a rounding machine. a reciprocating rounding knife, a feed plate having a surface against which the knife is adapted to' cooperate in trimming the soles of shoes of the type wherein the upper is directly secured to the tread sole, and a movable arm having an edge gage surface and a surface for c0- operating with the knife in trimming the soles of welt shoes, said arm being movable between two positions in one of which said surface is adapted to co-operate with said knife and in the other of which said arm is inoperative positioned to permit the knife to co-operate with the feed plate.

12. In a rounding machine, a reciprocating rounding knife, a feed plate having a surface against which the knife is adapted to co-operate in trimming the soles of shoes of the type wherein the upper is directly secured to the tread sole, a movable arm having an edge gage surface, a cutting block on said arm for co-operating with the knife in trimming the soles of welt shoes, said arm be ing movable between two positions in one of which said cutting block is adapted to co-operate with said knife and in the other of which said arm is inoperatively positioned to permit the knife to co-operate with the surface of the feed plate.

13. In a machine for trimming the soles of shoes, in combination, a cutting block adapt ed for use in trimming the soles of welt shoes, a second cutting block movable to and from a position wherein its cutting surface is disposed in a different plane from that of the first cutting block for use in trimming the soles of shoes other than welt shoes, and a movable trimming knife adaptable for cooperation with either of said cutting blocks to trim a shoe sole by a chopping action.

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

ADELORD BOURGEOIS.

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