US1986822A

US1986822A - Coating machine

Info

Publication number: US1986822A
Application number: US346383A
Authority: US
Inventors: Arthur S Johnson
Original assignee: United Shoe Machinery Corp
Current assignee: United Shoe Machinery Corp
Priority date: 1929-03-12
Filing date: 1929-03-12
Publication date: 1935-01-08
Anticipated expiration: 1952-01-08

Description

A. s. JoHNsoN COATING MACHINE Jan. 8, 1935.

Fiied Marbh 12, 1929 5 -Sheets-Sheet 1 Jan. 8, 1935.

"A. s. loHNsoN COATING MACHINE 5 sheds-sheet 2 Filed March l2, 1929 COATING MACHINE Filed March l2, 1929 5 Sheets-Sheet 3 Jn- 8 1935-A Y I A. I 5. JOHNSON 1,986,822

COATING MACHINE Filed March 12, 1929 5 sheets-sheet 4 Jan. 8, 41935.. Y A. s. JOHNSON COATING MACHINE Filed March 12, 1929 5 Sheets-Sheetl 5 Patented Jan. 8, `1935 UNITED STATES l 1,986,822 ooA'rlNG MACHINE Arthur S. Johnson, Beverly, Mass., assignor to United Shoe Machinery Corporation, Paterson, N. J., a corporation of New Jersey Application March 12, 1929, Serial No. 346,383

42 Claims.

This invention relates to improvements in coating machines and the invention is herein illustrated as embodied in a machine'for rubbing out or straightening a fabric French binding strip at- 5 tached to the marginal portion of a shoe upper and applying a coating of cement to the margin of the upper and to the binding strip.

In certain classes of shoes, notably womens shoes, the edges of the component parts of a shoe upper are nished with a so-called French edge in order to conceal the raw edge of the leather and to improve the appearance of the shoe. This French edge is produced by attaching a fabric binding strip to the outer face of a shoe upper part, in-a position wholly overlying the part, by means of a row of stitching located close to the edge of the piece. After the binding has been stitched to the shoe part and before the part is incorporated in the shoe the French edge is produced by three steps; rst, the binding strip is rubbed out or straightened to cause it to extend outwardly from the piece of work in substantially the plane of that piece ofk work; second, a. coating of cement is applied to the margin of the inner 25 face of the piece of work and to the corresponding inner face of the straightened binding strip; and

third, the free portion of the binding strip is folded over the edge of the piece of work and pressed into place to stick it firmly tothe inner i0 face of the work.

The operation of straightening the binding strip has been carried out very largely by hand and the cement `has been -applied as a separate operation after the straightening operation.

:5 There has been produced, however, a machine for carrying out both the straightening and the cementing operations upon pieces of work which is illustrated in United States Letters Patent, No. 1,790,901, granted Feb. 3, 1931, upon an applica- 0 tion filed in the name of John W. Cosgrove, de-

ceased.

An object of the invention is to provide an improved French binding straightening and cementing machine of the type referred to, by means of which an increased quantity of work of good quality may be produced.

In machines of this type, upper treating rolls comprising a-wiper disk and a feed roll are employed which are movably supported on levers and 3 are arranged to hold the work against a supporting and cement applying roll, straightening the bindingstrip as the work is drawn through the machine by the feed roll. When a piece of I work is introduced into such a machine, it must be brought into engagement' with an edge gage so as to locate the margin of the work with respect to a cementing roll and at the same time the operator must rub out or straighten manually the extreme ingoing end of the binding strip in order to enable the machine to initiate the 5 straightening action and then continue it as the work is fed through and coated with cement. The difliculty of inserting the ingoing end of the Work in the machine will evidently be increased if the wiper disk and the feed roll are continuously' rol0 tated because of the danger to the operators fingers. Likewise, it is desirable so to control the machine that the wiper disk is brought into engagement with the work before the feed roll engages the Work and before the machine is started and the rolls start to rotate, in order to avoid the danger of injury to the Work in case this sequence is not followed and the rolls are in motion when Abrought into engagement with the work.

An important feature of. the invention resides in the provision of :an improved and simplified control mechanism by means of which the beforestated, highly desired sequence of operations is insured when the operator, using a single, operatorcontrolled member, such as a treadle, releases the wiper `disk for engagement of the work before the feed roll engages the Work and then, but not until then, starts the operation of the machine.

It is also important that the upper treating rolls shall be withdrawn from engagement with the Work, to a position where they cannot contact with the cement roll or become coated with cement, as each piece of Work is finished and before it leaves a'position between' said rolls. The illustrated construction provides, therefore, as another feature, an arrangement by which the release of the control treadle by the operator is effective not' only to throw out the clutch to stop the machine but also automatically to withdraw the upper treating rolls to a point above the cement applying roll and to lift first the feed roll and then the wiper disk. A further feature of the arrangement resides -in a novel construction by means of which the power of the machine is utilizedfor opening the clutch and withdrawing the treating rolls to an inoperative position away from the work, where Ythey are latched to hold the treating rolls away from the cement roll.

It is important that cement be applied to the binding strip from about the line of stitching securing the strip to the shoe part toward the free edge of the strip. The portion of the binding strip adjacent to the line of stitching is at a level above the lower surface of the shoe part and this hdition renders it diincult to apply cement to 55 the portion of the binding strip adjacent to the line of stitching.

Another object of this invention, accordingly, is to provide a cementing machine organization which will insure the application of cement to all parts of a binding strip attached as above'described. In accordance with this object, one feature of the invention resides in an organization including a cement-applying roll for coating the under surface of the margin of the upper and the under surface of the outwardly extending binding strip and including a feed roll overlying the upper arranged to press itagainst the cement roll and provided with means bearing against the outwardly extending binding strip to hold it in contact with the supporting cement roll along a line close to the edge of the upper to which said strip has been attached. As illustrated, this auxiliary,means comprises a projecting rib on the feed roll positioned immediately over a groove in the cement roll. This rib engages the straightened binding strip adjacent to the upper and presses it against the cement roll and partially into the groove. As a result, some of the cement will be forced out of the groove into contact with the binding, especially ralong the seam connecting the binding with the upper.

These and other features of the invention will now be set forth in detail with reference to the accompanying drawings, in which Fig. 1 is a front elevation of the machine showing the treadle lever released and the parts in inoperative position;

Fig. 2 is a similar view with portions broken away showing the machine in active operation;

Fig. 3 is an angular view of the control mechanism;

Fig. 4 is a plan view of the machine;

Figs. 5 and 6 are enlarged elevations of' the front and the end of the machine adjacent to the operating rolls;

Fig. 7 is an elevation, partly in section, of the cement roll and the feed roll, showing their relation to an interposed piece of work;

Fig. 8 is an exploded View of the cement roll;

Fig. 9 is a fragmentary angular view showing thekoperation of the machine upon a piece of wor Fig. 10 is a vertical section through the valve mechanism at the bottom of -the cement conftainer showing the co-operating locking mechanism;

Figs. 11, 12 and 13 are angular views of this valve and locking mechanism;

Figs. 14 and 15 are views looking at the 4under side of the valve mechanism at the bottom of the inverted container showing the valvev in closed and open position respectively; and

Fig. 16 is an end view of the cement roll.

ll'he illustrated machine Vis arranged to apply a. coating of cement to the margin of the flesh surface of a-leather work piece 11 (Fig. 9)- and to an attached binding strip 13 on a piece of French binding Work as the binding strip is straightened. French binding work is used'largely for the-uppers of shoes and in most cases the work piece 11 will be a portion of an upper such as a vamp or a quarter, the edge of which is to be finished by bemg bound with.I a fabric binding strip 13 which `is rst superposed on the leather work piece in a position wholly overlying the piece of work so that the peripheries ofthe two coincide and is at; tached in that position by means of a row of stitching close to the edge of the upper, prior to being straightened, coatedWith cement and fo1ded around the edge of the upper for-attachment to the inner face thereof. The machine is provided with a cement receptacle 10 in the form of an arm extending outwardly from a pedestal 8 on a base 12, this arm being parallel to the front of a bench on which the machine is mounted, and cement is maintained at a constant level within this receptacle 10 by an inverted container 14 which, by barometric action, supplies cement to the receptacle 10 as it is used from the latter. The receptacle 10 is provided (Fig. 1) with a drain opening normally closed by a cover 16. A removable cover 18'over the receptacle is also provided to give access for cleaning.

'I'he inverted container 14, herein shown as a can, is provided with a threaded neck 20 (Fig. 11)

on which there is adjustably mounted a ring 22 by means of which the container is supported in position upon the rim 24 (Fig. 12) of a portion of the cement receptacle 10. By adjusting the ring 22 it is possible to vary the position of the lower end of the container with respect to the receptacle and thereby to determine the level of the,

cement in the receptacle 10. Since these containers are full of cement as they. are inverted to bring the neck 20 of the container into the receptacle, valve means have been provided temporarily to close the outlet of the container. Secured by screws to the lower end of the neck 20 is a plate 26 having an opening 28 (Fig. 11) which may be fclosed by means of a rotatable valve plate 30. 'I'his valve plate 30 is provided with a similarly shaped opening 32 which may be brought into register`with the opening 28, as the turn plate 30 slides over the surface of the plate 26. IIn its movement around the pivot screw 33, the plate 30 is held in close contact with f said plate 26 by means of a at. spring 34, so as thereby to'keep the contacting surfaces clean and to prevent leakage. It will be noted that the edge of the turn plate 30 is provided with a notch 36 which may be brought into engagement with a rib 38 (Fig. 13) as the container is inserted in the receptacle. After the two have been brought into engagement the container can bel opened by rotating it to brlng the

openings

28 and 32 into register, as shown in Fig. 15.

It is desirable also to make sure that the operator can not remove the container while the valve is' in' open position. Accordingly, the container is provided with latches 40 which are pivotally mounted on the ring 22 and which can be hooked under the rim 42 on the receptacle l0. It will be noted that a notch 44 (Fig. 11) is provided in the under side of the ring 22 which is brought into engagement with'the upper end of the rib -38 (see Fig. 12) as the container is inserted irl the receptacle. This prevents rotation of the ring 22 with respect to the receptacle 10 as the container is turned to -open the valve or to adjust its position on the receptacle. Provision is made as above stated for preventing operation of the latches when the valve is open. To this end the neck 20 of the container isprovided with vertical grooves 46, which are not diametrically QD- posite, and plungers 48 are provided upon the latches 40 positioned upon the adjacent sides of said latches (Fig. 13) to enter the grooves 46 in one position of the container. This position, by

reference to the rib 38 of the receptacle 10, is

such that the

valve plates

26 and 30 are positioned to close the outlet of the container. When the container is turned to open the valve the grooves is impossible to release the latches 40 to remove the container.

The novel subject matter exemplified in the construction of the illustrated container is not claimed herein since it is described and claimed in a copending application which is a continuation in part of this application and which has matured as Lettters Patent of the United States `N0. 1,922,297, granted August 15, 1933.

A cement applying roll 50 having a roughened surface is positioned in the open outer end of the receptacle 10 and is mounted upon a shaft 52 carrying a` gear 54 which meshes with a small gear 56 (Fig. 2) revoluble on a drive shaft 58 secured in the frame. f

It is found that the width of the binding strip 13, used by different manufacturers, varies and it is also found that some manufacturers prefer to apply a somewhat wider stripe of cement to the under side of the work piece 11 than do others who seek to reduce the amount of cement used to a minimum by applying a narrower stripe. To meet these conditions a built-up cement roll is employed of the type shown in Letters Patent of the United States No. 1,242,925, granted October 16, 1917 on the application of John W. Cosgrove.

The novel cement roll herein illustrated includes an intermediate disk 60 (Figs. 7 and 8) of smaller diameter than the other disks so as thereby to .form a groove 61 in the periphery of the roll for a purpose which will later appear. Associated with this disk 60 is a thin disk 62 having feeding projections .and otherdisks 64 o'f differing thicknesses which may be interchanged or selected so as to bring the feeding disk 62 and the smaller disk 60 at just the desired position in the cement roll according to the Work which is to be done.

A novel construction is also employed for holding together the parts of the cement roll which renders it easier to assemble the roll and makes f it possible for a manufacturer to obtain rolls of varying characteristics by means of a limited stock of parts which can be kept on hand. A roll is built up from end anges 66 and 68 each of which is provided with three inwardly extending segmental hub-like projections 70 (Figs. 8- and 16) Each of these projections is a sixth part of an annulus and the projections are so arranged that they may be intermeshed, or interlocked and still allow for axial adjustment of the

anges

66 and 68 with respect to one another. The intermediate disks 60, 62 and 64 are cut out at the center to slide over these hub projections 70 and each of them is provided with six equally spaced holes for the reception of fastener screws 72. Only the holes in the intermediate disk 60 are threaded, however, and the arrangement provides for the insertion of three equally spaced screws through eachend flange which pass through the openings of some of the various disks and are threaded into the intermediate disk 60. The ar- 'one of the segmental projections '70 to receive a key '74 in the end of the shaft 52 which shaft is.

also provided with a shoulder 76 against which the flange 68 of the assembled roll rests.

'I'he novel features embodied in the cementing roll described above are not claimed herein since they form the subject matter of, and are claimed in, a copending divisional application which has matured as Letters Patent of the United States No. 1,962,148, granted June 12, 1934.

The shaft 52 of the cement roll passes through bearing sleeves 82 and 84 (Fig. 2) suitably supported in the casting of the receptacle 10 and in order that the cement may not work into the bearing surfaces between the shaft 52 and these sleeves 82 and 84 a removable cylindrical casing 86 has been provided which surrounds. the shaft 52 and ts tightly and merges into extensions upon the bearing

sleeves

82 and 84, it being interlocked with said sleeves by tongues such as is shown at 88 entering recesses in said sleeves. This cylindrical casing is not only advantageous in exclud- -ing cement from the bearings but also excludes cement from contact with the drive shaft, and thereby materially lightens the load upon the driving motor (not shown) at times when the machine is started up after it has been idle over night or over the week-end and cement has had an opportunity to dry out in the receptacle.v An additional means is provided for excluding cement from the bearing between the. shaft 52 and the casing 86 in the form of a felt washer 90 (Figs. 2 and 7) which is located in a recess at the end of the bearing sleeve\82closely adjacent to the end of the cement applying roll 50.

The end of the receptacle 10 is provided with mounted by means of dowel pins a thin scraper plate 94 (Fig. 6) for cleaning the outer endrof the cement roll 50. A detachable U-shaped filler piece 91 completes the cup 92 and a series of such filler pieces 91, but of different widths, may be supplied to co-operate with cement rolls of different thicknesses. A similar scraper plate (not shown) is provided to clean the other end of the cement roll. The inner end of the shaft 52 is squared at 93 (Fig. 2) to co-operate with a complemental socket in a hub 95 on the gear 54. When the cup 92 has been removed, the roll 50 and shaft 52 with its bearings can readily be removed to facilitate cleaning the parts and the position on the top of the receptacle 10 by means v of a screw 98. The lower surface of this scraper is approximately tangential to the cementing roll and its rear edge may be brought into the desired proximity to the peripheral surface of the cementapplying roll and locked in that position by means of the screw 98.

It will be noted that the upper surface of the cement controlling scraper 96 is cutaway at 100 (Fig. 6) thereby to allow a closer approach of the incoming work to the periphery of the cement roll so that the work may contact with a greater portion of the periphery before it is removed therefrom by means of a pick-off fork 102 having a series of prongs whichvcontact with the upper surface of the cement roll and adjustably secured in position upon the rear side of the cement receptacle 10 by means of a screw 104.

Rubbing out or straightening of the binding strip 13, which has been attached to the'piece of leather 11 by means of a row of stitching with the binding strip superpcsed on and wholly overlying the leather, is accomplished by means of a treating roll, to wit a driven wiper disk or roll 106 which is rotated counterclockwise (as viewed in Figs. 2 and 5) by means to be described, to pull out or straighten the vbinding strip until the 106 is provided with peripheral teeth, the corners of which are chal'nfered on the front face as show"y in Fig. 6, thereby to prevent scufling the work and possible damage to delicate leathers. The peripheral teeth are cut somewhat saw fashion and the `direction of rotation of the disk 106 is such that the disk exerts a series of rapid wiping actions tending to pull out the binding until the fabric binding stripis given a permanent set in its straightened position whereby a coating of, cement may readily be applied to the under surface of the strip and the strip made ready for the folding operation. In addition, the teeth 108 on the periphery of the wiper disk 106 are sections of a high pitch helical screw thread (Fig. 6) which is actuated in such a direction that the rotation of the driven wiper disk assists in feeding the work.

The work, being fed into the machine -in a direction away from the operator, who stands in front of the machine as viewed in Figs. 1 and 5, is supported upon vthe outwardly extending arm 110 of an edge gage 112. This gage 112 has a gage surface 114 at the bottom of a throat or recess formed by means of an overhanging finger 116. The forward edge of said recess is relieved to avoid abrasion of the edge of the work. Both the edge of the leather 11 and the edge of the fabric strip 13 enter this recesswith the further result that the continual pulling or lateral thrust of the wiper disk 106 in a direction transverse to the direction of feeding movement will not dis--V lodge the work from the gaging surface 114. The gage 112 is supported by an integral block 118 slotted in a direction transversely of the direction of feeding movement and adjustably held in position upon a sub-base 120 by a screw 122 so that the position of the edge of the work with respect to the cement roll 50 and. the other operating parts laterally of the direction of work feeding movement may be adjustably determined in accordance with the wishes of the operatorand the needs of any particular class of work.- It should be noted thatthe arm 110 is attened (Fig. 6) and that it overlaps the scraper 96 to prevent the work from catching between the two.

It is also desirable at times to be able to adjust the work gage to bring it nearer to or farther away from the wiper disk. Such adjustment is provided for by a slot in the sub-base 120. The sub-base is received in a groove in the top of the/receptacle 10 andmay be held i-n adjusted position by means of a screw 124. When the machineisbeingusedforrather light, flimsy leathers, it is desirable to move the edge gage up quite close to the wiper disk 106, but when the machine is used for heavier kleathers such as patent leather, for example, it is not possible to operate the machine with the edge gage as close to the wiper disk because of the resulting bend in the work as it passes over the gage and then under the wiper disk.

. As has already been brought out, the cement applying roll 50 is moving in the direction of f eed of the work and, therefore, helps to carry the work along and the teeth 108 on the wiper disk 106 are cut in such away that they also help the feed of the work. In order, however,.to provide for w'are positive work feeding movement, another treating roll in the form of a knurled feed roll 130 (driven by means later described) is provided which, as will also be explained, is pressed down against the surface of the leather 11 and presses it into engagement with the upper surface of the cement roll 50. The direction of rotation of this feed roll' 130 is indicated by the arrow in Fig. 9 and its outer or left end, as viewed in Figs. 5 and 7, is beveled to facilitate the use of the machine upon work parts which are curved so that sharp corners or small recesses result.

Since the binding strip 13 is attached to the upper-surface of the leather 11, considering the work in operative relation to the machine as shown in Fig. 9, the strip 13 obviously extends out from the leather at a level above the level of the lower surface of the leather 11. therefore, that the binding strip normally is above the cement roll and. the application of a proper coating of cement to the binding strip is hindered by this relation. In order to overcome this difculty the feed roll 130 is provided with a projecting rib v132 constituting an auxiliary presser member revoluble with the feed roll, the surface of which is in such a position with respect to the edge gage 112 that the presser rib 132 may be brought to bear on the binding strip at a point closely adjacent to the edge of the work piece 11, thereby pressing the strip against the cement roll and providing for effectively coating substantially the whole width of the binding strip with cement. The strip is pressed into the groove or recess 61 and displaces a portion of the cement carried in the groove, thus causing the displaced cementv to enter the space between the leather and the portion of the binding adjacent thereto. In case of accidental contact of the feed roll with the cement roll, the rib 132 will enter the groove 61 and will be uninjured.

To provide for conditions similar to those described in connection with the built-up cement roll, the feed roll issbuilt up of a plurality of knurled disks 134 each of which has a small opening to receive a dowel pin 136 projecting from the main body portion of the feed roll. One of these disks has a smooth periphery and isof larger diameter than the other disks so that in the assembled roll it projects beyond the surface of the feed roll and provides the rib 132 constituting the auxiliary presser member for the purpose described above.

The frame of the machine is provided with upwardly extending supports 138 only one of which may be seen. Between these supports are journaled, upon a cross pin 140, a lever 142 (Figs. 2 and 4) which is positioned toward the back of the machine and is arranged to support the wiper disk 106, and another lever 144 which is located nearer the front of the machine and is arranged to support the feed roll 130.5'

The forward lever 144 has at the left (as viewed in Fig. 2) a channeled arm which receives a drive shaft 146 for the feed roll 130, and at the right a attened arm 148. The lever 142 has a similar channel-shaped arm at the left surrounding a drive' shaftf150 for the wiper disk 106 and a flattened arm 152 (Fig. 4) extending to the right. A treadle rod 154 (Figs. 1 and 3) is connected to the arm 148 of the lever 144 which lever is also provided with a rearwardly extending overhanging lip 156 for the-reception of a stop screw 158 which is arranged to contact with the arm 152 of the rear lever 142 after the treadle rod 154 has been slightly depressed, with the result that the feed roll is always lifted away from the It follows.v

dried on the machine and might, except for the work first and danger of soiling it with cement is avoided. When the treadle rod 154 moves up, as,the machine is started, a reverse sequence causes the wiper'disk to contact with the work slightly ahead of the feed roll and, in any event,

prior to the commencement of rotation of the driven parts, thereby making it easier .for the operator to start the work through the machine.

A bridge piece 160 secured to the upper end of the standards 138 is provided with an extension'to the left having a depending forked portion 162 which receives and closely surrounds levers 142 and 1.44 and is provided with recesses (Fig. 2) for the reception of springs 164 which bear against pins 166 resting upon the upper surfaces of the levers. Adjusting screws 168 are provided for varying the tension of these springs. 'I'he bridge 160 also has an extension tothe right in which are mounted stop screws 170 which are adjustable to determine the limit of downward movement of the wiper disk 106 and the feed roll 130 so as to hold them out of contact with the cement roll 50. In addition, a locking hanldle 172 is provided which is pivoted in the bridge 160 and has a cam arm 174 (Fig. 2) adapted t' bear `on the arm 148 of the forward leverwhen the handle is turned toward the front, to hold both the wiper disk and the feed roll away from the cement roll.

The manner of supporting the wiper disk 106 in the outer end of the lever 142 is illustrated'in become accidentally coated with cement a cleanerin the. form of a piece of felt 220 (Fig. 5) is held Figs. 5 .and 6, from which it will be seen that the channeled arm of said lever is enlarged to provide a box 180 (Fig. 6) which furnishes bearings for a transverse stub shaft 182 upon which the disk 106 is mounted. Miter gears 184 Within the box 180 interconnect the stub shaft 182 and the shaft 150 which extends longitudinally through4 and is journaled inthe lever 142. At the right end of the shaft 150 is secured a pinion 186 (Fig. l4) by means of which said shaft is driven.

At the left end of the forward Vlever 144 is.

` mounted a horseshoe-shaped bracket 192 which has a tongue and groove connection 194 (Fig. 6)

with the upper side of said lever 144, and is secured in position thereon by means of screws 196 (Fig.` 5). The feed roll 130 iS-mounted on a removable shaft 198 'extending .between the spaced lower arms of the horseshoeshaped bracket and.

provided `at its right end with a pinion 200. 'I'his pinion is driven through an intermediate gear from another pinion 202 secured to one end ofthe drive shaft 146. 'Near the other end of this shaft, there is provided a pinion 204 (Fig. 1).which is loosely mounted thereon .and meshes with the gear 54 Von the end off the cement roll shaft 52. The pinion. 204 is integral with one plateor disk of a friction drive 20.6, the other plate of which is integral with another pinion 208 which is keyed .to the shaft 146.' The pinion 208 meshes with the pinion 186 (Fig. 4) on `the end of the wiper diskshaft so that both the wiper disk 106 and the feedr roll 130 are frictionally ,driven from power supplied from a drive disk 232. Provision is made for adjusting the tension'on the friction drive 206'by rotating a knurled nutV 210 which bears against a spring'212 resting in turn on the right side of the pinion 208 to hold the-disks of the friction drive in frictional contact.' A cover plate 214 is hinged (Fig. 2) to the right end of the frame to cover up-this train of gears. Rotation of the treating rolls through the friction drivef206-is advantageous not only because of the fact that parts of themachine are subject to accidental coating with cement which becomes friction drive, cause breakage of parts in case an attempt were made to start the machine up before the dried cement was Jcleaned ol, but is also of substantial utility in preventing damage to the work when the Wiper disk encounters an unusually thick work portion or a wrinkle in the work. rIhhe tension on this friction drive 206, controlled by rotating the nut 210, is regulated in such a way that the driving force applied is just suficient to cause a steady progress of the work under normal conditions. It is also to be noted that the natural retarding effect of a disk rotating transversely to the direction of feed in contact with the surface of the work, such as the disk 106, is overcome here by reason of the construction of the periphery of said disk whereby it helps to feed the work. The feeding tendency of the diskv constructed as herein illustrated is asucient help to the feeding action of the rolly in contact with the upper surface of the wiper disk. The felt 220 is supported in the desired position by a bracket 222 (Fig. 6) which is secured to the upper surface of the lever 142 by screws. The bracket 222 provides a pocket for the piece of cleaner felt 220 and a-thumb screw 224 threaded in the upper side of said bracket is arranged to bear against a plate 226 which rests upon the upper surface of the cleaner felt 220.

The disadvantageous results of a double treadle control or of an arrangement in which the machine is continuously in operation are overcome by a mechanism about to be described by means of which the operator, by manipulating a single treadle, is enabled to start and stop the machine and 'to bring the treating rolls into engagement with the work and to withdraw them from the work, all in the proper sequence. When the machine is at rest the parts are in the position illusftrated in Fig.- 1 with one slidingclutch member 230 separated from another-clutch member 232 o1 drive disk which is rotatable on the shaft 58.

.At the same time the treating rolls, comprising the wiper disk 106 and the feed roll 130, are held,l

away from the work through the agency ofa latch 234 and connections to be later described. When the operator depresses a treadle (not shown) connected to a clutch control member, here a treadle lever 236, a plunger 238 is withdrawn from engagement with the clutch member 230, the clutch is closed as later described, and the latch 234 is released to allow the treating rolls to be pressed into engagement with the work by the springs 164. When the. operator releases the treadle to allow the treadle lever 236 to be raised by a spring'240 against a stop screw 23'7;-`

then the plunger 238 is raised by a spring 242 and coactsfwith thev clutch member 230 to separate the clutch pai-ts so as to stop thedrive of the machine. At the same time said sliding clutch member 230 operates, through contact with an upright arm 244 in the path of movement of the sliding clutch part, to raise the treating rolls from the work and allow the reengagement of the latch 234 to hold them in the position shown in Fig. 1. To accomplish these results the construction isas illustrated in Figs. 1 to 4, inclusive, from which it will be seen that the treadle lever 236, the outer end of which is connected to a treadle rod 246, is bifurcated at its inner end to surround the plunger 238 and the upright arm 244 and is pivotally mounted on the base 12 of the machine by means of a rod 248 to which it is secured, this rod being pivoted in

uprights

250 and 252 upon the base. 'Ih'e upright arm 244 (Fig. 3) is joined by an integral web 292 with a horizontal arm 254 and these arms are pivotally mounted as a unit upon the rod 248. The horizontal arm 254 is connected to thelower end of the upright rod 154 by a. pin 256. This rod is adjustable in length to vary the inoperative positions of the treating rolls and Ahas a lost-motion connection to the lever 148 so that the treating rolls iioat upon the work during the operation of the machine and the passage of a thickened place such as a seamin the work has no effect'upon the connections including the upright rod 154.

The latch 234 (Figs. 1, 2 and 3),- utilized-"for holding the bell crank lever in position toretain the treating rolls out ofy engagement with the work, is secured to a pivot rod 261 journaled in abearing 258 in the base and on the other Vend.

- lwhich there is a spring 262 to urge the latch into engagement with the web 292, and on the other end of this arm is a nger 264. The pivot rod 248 -on which the treadle lever 236 is mounted is also provided with a trip arm 266 which is held on said rod by a set screw 265 and which underliesthe finger 264 (Fig. 4).so that depression of the treadle is eiective to rotate the latch and to releaseL the

interconnected arms

244, 254. Adjustment of the position of the trip arm 266 with respect tothe treadle lever 236 controls the- 'time of release of the rolls with respect to the time of operation of the clutch, and preferably the arrangement is such that the treating rollsl engage the. work before they are set in rotation. The connection between the plunger 238 and the treadle lever 236 comprises a forked lever 270 pivoted upon the pedestal 8 of the machineY and engaging a cross-pin 272 on the plunger 238; A flat link 274 slotted at its upper end is interposed between the treadle lever 236 and the lever 270 so -that depression of the. treadle lever will causev a depression of the plunger while release ofthe treadle lever will allow an upward movement of the plunger 238 which may be interrupted without stopping the movement of the treadle lever.

Ato rise into engagement with a cam surface 280 formed vupon the inner face of afiange integral with the clutch member 230 so as thereby to cause axial movement of the clutch member 230 along its shaft toward the right to withdraw it from engagement vwith the other clutch member 232. If the end of the roll 276 hits against the periphery of-the ange at the wide part, shown at the bottom of the ange in Fig. 1, upward movementI of the plunger 238 `will be delayed until the clutch member 230 has been rotated by power supplied through a belt 286 to bring the narrow part ofgthe flange opposite the plunger. Then the plunger will rise into contact with the shoulder 281 (Fig.v2) andthe camsurface 280 will A roll 276 pivoted on an uprightr axis at the top of the plunger 238 is arrangedy '.position by the roll become effective to open the clutch. As soon as this axial movement of the Idriving clutch member 230 has been eiected, the plunger roll 276 will drop into a deeper groove 282 so as thereby to retain the clutch in disengaged relation. It will be observed that the clutch member 230 is provided with a pulley 284 through which power maybe supplied by the belt 286 from any suitable source of power such as an electric motor (not shown).

It will be noted that a connection is provided between the bifurcated end of the treadle lever 236 and the upright arm 244 through an adjustable set screw 245 so that after the clutch member 230 has been released by pulling down the plunger 238 it may be pressed into rm engagement with the driven clutchmember 232 by further depressing the treadle lever 236 to force the upright arm 244 against the driving clutch member 230 to overcome' any slippage between s aid clutch members and thereby grade ually to start and to increase the speed of the machine. By having the `adjustable set screw 245 between the treadlelever and the arm 244, the desired pressure :can be obtained without requiringundue upward movement of the web 292- and thereby interfering withits reengagey ment by the latch 234.

As the clutch members are moved apart by the cam 280 upon the release of the treadle lever 236by the operator, the driving clutch member 230 will be m'oved to the'right (Fig. 1) to tilt the upright arm- 244 by engagement of a button 288 on the end of said clutch member with an adjustable `stud 2,90 at the upper end of the upright lever 244. This will throw the arm 244 to the right and bringA the web 292, which inter"- connects the upright arm 244 with the horizontal arm 254, into position for engagement by the latch 234. Since thev trip arm 266 is dropped, upon release ofthe treadle lever 236, there will be no consequent interference between this arm tion where yit is out of engagement with the button 288 at the end of the clutch member and it will be held in this out-of-engagement-position by the latch- 234 so that there will be no wear between thesetwo parts' during the period. of inaction of the machine, even though the driving clutch member 230 is rotated continuously by the belt 286 and is held in inoperative 276 at the top of the plunger In the operation of the machine, after the cement container 14 has `been rotated to open its valveso as to allow cement toow into the receptacle l0 and the cup 92, the :operator will present a piece of work to the machine with its of the binding strip to cause, it to overlap thel nger 116 and to bring the inserted end`of the lpiece of work, with the strip held outwardly,

into4 position for engagement by the treating rolls. The operator will then release the locking handle 172,.if necessary, and, depressing the treadle lever 236, will cause the release of the transversely of the work and at the same time applying cement to the under surface of both the piece of work 11 and the binding strip 13 by means of the roll 50. A continuous forward movement of the work ,will be effected by the feed roll 130 which, with Athe assistance of the auxiliary presser member 132, is holding both the work and the binding strip firmly against the cement roll. The auxiliary presser member will operate as described to hold that portionof the binding strip which is close to the edge of the work down against the cement roll in spite of its normal tendency to be held away from the roll byV reason of its attachment to the upper surface of the work.

4Danger of damage to the work is largely overcome by the friction drive 206 (Fig. '1) for the treating

rolls

106 and 130, and further by the fact that the teeth 108 on the wiper disk 106 are arranged to assist the feeding movement of the work and thus allow a looser adjustment of the friction drive 206.

As the operator sees thatthe piece of work is nearing completion, the treadle lever 236 will be released and allowed to come vagainst the stop screw" 237, whereupon the automatic control. mechanism will be effective first to discoiinectv the clutch members 232 and 230 to stop the drive of the machine and then automatically to pull down upon the'upright rod 154,'thereby tolift iir'st the feed roll 130 and then thewiper disk 106 away from the work. This sequence of operations insures that the wiper disk and the feedv roll will surely be lifted away from the work in n v season to prevent accidental contact" between them and the cement roll. This automatic separation of the treating rolls from the cement roll is of material assistance in the proper op-` eration of the machine, because,'if any cement is taken up by these treating rolls, it would be transferred tothe surface of the work and cause.

vsmooching of the work.

vIt will be understood also that in various as" pects and particularly with respect tothe cement roll and the cement container the invention is not limited to embodiment in the particular type of machine'shown and described or to the performance of the particular operations referred to.

- The scope of the invention should be determined by the accompanying claimsl when' construed by reference to the priorf art.

Having thus described my invention, what I the position of 4said treating roll with respect to the work, means for holding said roll out of engagement with the work, and `an operatorcontrolled member for releasing said holding` means to allow said roll to move into engagement with the work and for controlling the clutch to cause the roll to be driven to treat the work.

3. In a machine for treating shoe parts, driving means for a treating roll including a clutch, power means for disengaging said clutch, an operatorcontrolled'member constructed and arranged to close said clutch and to control said power means, and means associated with said operator-controlled member constructed and arranged to apply additional pressure to -the clutch uponcontinued movement of the operator-controlled member in a, direction to close the clutch.

4. In a machine for treating shoe parts, a treating roll arranged for engagement with a piece of work, a lever supporting the roll and by which it may be moved into and out of engagement with the work, driving means for said roll including a clutch operable independently of said roll-supporting lever when the .latfr is holding the -roll out of engagement with the Work, a treadle lever oontrollingsaid clutch to cause the movable roll to be driven, in engagement with `the work, resilent'means urging said roll-supporting lever toward the work, and means operated by said treadle lever to release said roll to the action of said resilient means.

5. In, a machine for treating shoes parts,` a

treating roll arranged for engagement witha piece of work, driving means for said roll including a clutch, movable means for supporting said movably mounted roll to permit movement toward and away from the work, resilient means urging said roll toward engagement with 4the work, a latch for holding said movable means to 4` keep the roll out of contact with the work, and a clutch operating device constructed and arranged firsty to 'release said latch and then to operate said clutch.

6. In a machine for treating shoe parts, a treating roll 'mounted formovement toward and away from a piece of work, driving means for said roll including a clutch having separable members, a grooved cam associatedwith one member of said clutch, a member movable into the groove of said cam to separate the clutch members bythe power of the machine, and operator-controlled means constructed and arranged t'o change the position of said movable member and positively to withdraw said movably mounted treating roll in the desired sequence.

. 7. In a machine for treating shoe parts, a

treating roll arranged for engagement witha claim as new and desire'to secure by Letters piece of Work driving means for 'Sad m11 in' Patent of the UnitedStates is:

1. In a machine for treating shoe parts, a base, a work support thereon, a treating roll rmounted for movement toward 'and away from the work support, driving means for said roll including Aa clutch and effective to rotate the roll Aon an axis .lying in a vertical planexed with respect to cluding a clutch, means for holding said clutch open, and an operator-controlled member'constructed andl arranged first to release said holding means and then to apply additional 'pressure to oneaof said nclutch members to close said clutch.

8. .In a machine for treating shoe parts, a treating roll arranged for engagement Vwith a piece of work and mounted for movement toward 'and away from the work, driving means for said roll including a clutch havingy a slidable member, retaining means engaging said slidable mem'- ber constructed and arranged to hold the clutch Open, movable pressure means adaptedto en- Cal gage said slidable clutch member to apply additional pressure to hold the clutch closed, a latch for holding said movable means out of engagement with the clutch, and an operator-controlled member constructed and arranged to move said retaining means to Yallow the clutch to be closed 'and then to release said latch and to move said treating roll out of engagement with the work,

and an operator-controlled memberl constructed and arranged to move said clutch control member and to release said latch.

10. In a machine for treating shoe parts, a cement roll and a treating roll arranged for engagement'with opposite faces of a piece of work, said treating roll being mounted for movement toward and away from the work, driving means, i for said rolls including a clutch, said clutch having a movable part, a member in the path of movement of said clutch'part connected to said movably mounted treating roll to4 move it away from the work, and operator-controlled means arrangedto causeseparation of the clutch parts said movable clutch part into engagement with said member to separate-the treating roll from the work and hence from the cement roll.

11. In a machine for treating shoe parts, a treating roll arranged for engagement with a piecev o f work and mounted for movement toward and away from the work, driving means for said roll including a clutch, said clutch including a movable part, a lever having an end mounted in the path of movement of said movable clutch part, `said lever being connected to said movably mounted roll and. arranged to separate said roll' from the work when the clutch is disconnected,

and an operator-controlled member for disengagy ing said clutch. l

x 12. In a machine for treating shoe parts, a treating roll arranged for engagement with a piece of work and mounted for movement toward and away from the work, driving means for said roll including aclutch, said clutch having a movable member, a lever having a portion mounted in the path of movement of said clutch member, a lost-motion connection from said lever to said movably mounted roll, and an operator-controlled member for separating said clutch mem` 'bers or causing their reengagement, whereby movement of the operator-controlled member in one. direction starts the machine and allows a iioating engagement 'of the rollwith the work and movement in the other direction disengages the clutch and separateslthe roll from the work.

13. In a machine for treating shoe parts, a

treating roll arranged for engagement with a piece of work and mounted for movement toward and` away from the work, vdriving means for said roll including a clutch, a pivoted support for said movably mounted roll,v resilient means .urging the work, and an operator-controlled member for controlling said clutch and for releasing said latch.

14. In a machine for operating upon shoe parts, a work-supporting roll, a treating roll and a feed roll arranged for engagement with the opposite `face of the Work to press it against \the worksupporting roll, movable supporting members for said treating and feed rolls, a driving mechanism for said rolls including a clutch, and a clutch control member connected to said roll-supporting members constructed and arranged to bring first the treating roll and then the feed roll into engagement with the work and to close said clutch. 15. In a machine for operating upon shoe parts, a work-supporting rolla` treating roll and a feed roll arranged for engagement with the opposite vface of the work to press it against the work supporting roll, movable supporting members for said rolls, a driving mechanism for said rolls including a clutch, connections between said clutch and said roll supports, and a clutch control member, said clutchI being constructed and arranged when opened by said clutch control member to operate through said connections to remove from the work first the feed roll and then l the treating roll.

' 16. In a machine for treating shoe parts, a treating roll, a movable support' for said roll, resilient means pressing said support in a direction to carry the roll toward the work, a rigid operating connector for moving the support tocarry the roll away from the work, means for stressing vsaid connector to allow the roll to engage the work, and a lost-motion connection between said operating connector and said movable support so that said roll can yield when it passes over thick portions of the work, for example, without affecting said operating connector.

1'7. In a machine for treating shoe parts, a

treating roll, a lever for movably supporting said roll, resilient means acting directly upon said lever to urge it in one direction to carry the roll toward the work, an operator-controlled lever, and a lost-motion connection between said operatar-controlled lever and said roll-carrying lever to allow the roll to oat upon the work without affecting the position of the operator-controlled lever. r

18. In 'a machine for treating shoe parts, a movably supported treating roll, driving means for said roll including a clutch having a movable part, a lever coacting with said movable part to withdraw the roll from the work, a clutch control member for pressing said lever against said clutch part, and a loose connection between said clutch control member and said lever whereby operation of the lever will not be restrained by the clutch control member in its released position.

19. In a machine for treating shoe parts, a movably'supported treating roll, driving means for saidroll including a clutch having a movable part, a lever coacting with vsaidmovable part to withdraw the roll from the work, a clutch control member adapted to bear against said lever, adjustable members interposed between said lever and said clutch and between said lever and said clutch control member, anda latch for holding said lever in one position.

20; In a machine for treating shoe parts, a driven` work treating member movable bodily to different positions, av clutch for said driven member having clutch members one of which is provided with a cam, a movable member constructed and arranged to be brought into engagement with said cam thereby to cause separation of the clutch members, resilient means urging said movable control member loosely connected to said movable member and connected to said work treating member to control its position, and another resilient means urging said clutch control member in a. direction to allow the movable member to separate the clutch members.

21. In a machine for treating shoe parts, a

driven member movable toward and away from the work, latch means 4for holding said member away from the work, means for. driving said member comprising a'two-part clutch, the movablepart of said clutch having a ange spaced from the end thereof thereby to forma groove, a cam upon said flange, a plunger spring-pressed into engagement with said cam to withdraw the mov- `able clutch member from engagement with the control member and said plunger.

22. In ia machine for treating shoe parts, a

driven' work treating member movable toward and away from the work, means for driving said L;

ing work along the margin of which a Abinding member comprising a two-part clutch, the movable part of said clutch having a, shouldered groove, means associated with said movable part to lift said driven member away from the work.

ha plunger movable into engagement with said shoulder, and a cam upon said clutch member to separate said clutch parts thereby to push said plunger off from said shoulder to allow the plunger completely4 to enter the groove to hold the clutch and the work treating member in inoperative condition. 1

23. In a machine for treating shoe parts., a

rotatable driven 'shoe-part-treating member also mounted `for movement bodily into and out of operative position, means for driving said treating member comprising a two-part clutch, a treating-nember-shifting means operated by movement of one part of said clutch to shiftthe position bodily of said-driven member, means including a plunger and operated by thelpower of the machine for'eiecting a disconnection of the clutch constructed and arranged to cause an overthrow,

;of the clutch part as the latter acts upon said shifting means and by coaction with said plunger to hold the clutch part in an inoperative position ing means for engagement with the lever, having out of engagement with said shifting means. 24. In a machine for operating upon shoe parts,

la plurality of treating rolls. levers for individuallyv supporting saidrolls for movement Atoward and away from vthe work. resilient means urging the rolls toward tl'ie work, and normally inoperative means for locking said levers to hold said rolls'` in an inoperative position out of engagement with the work.'

25. In a machine for treating shoe parts. a ,plu-

rality of treating rolls mounted upon individual v'levers for movement toward and away from the -`work, resilient means urging said levers in one di- 'recti'on to carry said rolls toward the yvork. projecting means extending outwardly from one lever for engagement with the other leve, and a locksaid projecting means constructedand arranged to hold said levers in a 'position'in which the rolls areV held out of engagement with the work.'

' 26'. In a machine for cementing French binding work of the type comprising an upper along the margin of which ay binding strip .has.been stitched in a position -overlying .the upper and then straightened to extend beyond the upper,

' means for guiding said work by engagement with the edge of the upper, a supporting roll constructed and arranged to apply cement to one surface of both the strip and the upper, a feed roll overlying the upper varranged to press it against said cement roll, and means upon said feed roll beyond said guiding means and constructed and arranged to bear against the outwardly extendling binding strip to hold it in contact with the supporting roll along a line closeto the edge of theupper to which said strip has been attached.

27. In a machine for cementing French binding work along themargin of which a binding strip has been stitched in a position overlying the work-piece and then straightened to extend ,beyond the work-piece, a supporting roll comv structed and arranged to apply cement to one surface of both the strip and the work-piece, a

strip has been stitched in a position overlying the workandthen straightened to extend beyond the work, a supporting roll constructed and arranged to apply cement to one surface of both the strip and the work, a feed roll for engaging a`piece of work, and a'presser member revoluble with said feed roll positioned adjacent to the end of the feed roll which is adjacent to the edge of said strip and arranged to bear vagainst said straightened strip 'close to the work to hold it in contact with the supporting roll.

' 29. In a machine for cementing French binding workalong the margin of which a binding strip 'has been stitched in a position overlying the work and then straightened to extend beyond the work, a supporting roll constructed .and arranged to apply cement to one surface of both the strip and the work, said supporting .roll being provided with a two-sided cement retaining peripheral groove, a feed roll overlying the work arranged to hold the work against the` supporting roll, said' feed rolll being provided with a rib projecting toward the groove of said supporting roll thereby to press the extended binding strip into contact with the cement on said supporting roll close to the point of attachment of the stripto the Work without injuring the strip.

30. In a machine for cementing French` bindingwork along the margin of which a binding strip has been stitched in a position wholly overlying the work and then straightened tc extend beyond the worin a cement-applying, supporting roll arranged to apply a coating of cement to one marginof the inner face of, the work and of the strip,

said cement applying roll having feeding projections and being provided with a peripheral groove coated .by said roll constructed and arranged to 'hold the work against the feeding projections of t the ementapplying roll and to press-against the binding strip at a point over the groove in said extending around the circumference of the roll, and presser means cooperating with workbeing roll so as thereby to hold the outwardly extending portion of the strip against the roll.-

3h In a machine for cementing French binding Work along the' margin of'which a binding.

striplhas been stitched in a position overlying ,the work and then straightened t6 extend beyond the work, a supporting :roll constructed and arranged to apply cement to one surface of both the strip and the work, said supporting roll having projecting teeth arranged to bite one surface of the work to feed it along and a circumferential groove, a. feed roll for engaging an opposite face of the work'above said teeth and provided with a projecting rib to engage the straightened bindingstrip over the groove of the supporting roll thereby to hold said strip in engagement with the supporting roll.

32. In a machine for cementing French binding work along the margin of which a binding strip has been stitched in a position overlying the work and then straightened to extend beyond the work, a work-supporting cement-applying roll having an annular recess, a gage for positioning said work with respect to the cement-applying roll to bring the junction between the binding strip and the workat one side of the recess, and means for forcing .the binding strip into said recess to displace cement carried therein and to force it toward the junction between the strip and the work.

33. In a machine for cementing French binding work along the margin of which a binding strip has been stitched in a position overlying the work and then straightened to extend beyond the work, a work-supporting cement-applying roll having an annular recess, a gage coacting with the edge of the work to which the binding strip has been attached for positioning the edge of said work closely'adjacent to one side of said recess, and

-means for deecting the binding strip into the recess thereby to displace the iluid carried in the recess and to force-it towardthe edge of the work where the binding strip is attached.

- 34. In a machine for treatingv shoe parts, v a

` treating roll and a work supporting roll mounted treating roll mounted for movement toward and away from the work, driving means for said roll including a clutch, a latch for holdingsaid `roll out of engagement with the work, and an operator-controlled member constructed and arranged by a single continuous' movement to release said latch to allow said roll to move into engagement with the work and then to control the clutch to causev the roll to be driven to treat the work.

36. Ina machine for treating shoe parts, a'

treating roll mounted for movement toward and away from the work, driving means for said roll including a clutch having a cam surface, connectionsl between a movable part' of said clutch and said roll to move' the. roll away from the` work, an operator-controlled member for engage'- ment with the cam surface of the clutch cognstructed and -arranged for movement in one direction to start the machine and for reverse movement to cause the treating roll vto be moved out of engagement with the work and to open the v' a clutch, means for holding said disk out of enroll away from the work.

gagement with the work, and an operator-controlled member connected to said holding means to release it, thereby to allow said disk to move into engagement with the work, said operatorcontrolledvmember being also connected to the clutch thereby to cause the disk and the roll then to be driven to treat the work.

38. In a machine for straightening and cementing French binding work, a wiper disk arranged for engagement with the binding strip to straighten it, a cement applying and work supporting roll, driving means for said disk and said roll including a clutch, means for holding said clutch open, means for holding said wiper disk out of contact with the work, and an operatorcontrolled member beside said clutch and connected to said holding means and constructed and arranged rst to release both of said holding means and then to apply pressure'to theclutch to drive the machine.

39. In a machine for treating shoe parts, a. treating roll mounted for movement toward and away from the work, driving means for said roll including a clutch having a movable part, an operator-controlled member for operating said clutch `thereby to produce a disengaging movement of the movable clutch` part, and means operated by disengaging movement of said movable clutch part for moving said treating roll away from the work.

40. In a machine for treating shoe parts, a treating roll mounted for movement toward and away from the work, driving means vfor said roll including a clutch having a movable part, an operator-controlled member constructed and arranged for engagement with said movable clutch part, -means associated'A with said clutch part constructed andarranged to disengage the clutch bythe -power supplied to the machine through engagement with said operator-controlled member, and means operated by movement of said movable clutch` part for moving said treating roll away from the work.

41. In a machine for treating shoe parts, a treating roll mounted for movement towardy and away from the work, driving means for said roll including a clutch having a movable clutch part, an operator-controlled member, means for urging said member toward one position, means rotatable with said movableclutch part and constructed and arranged tol utilize the power supplied to the machine for moving said movable clutch part to open the clutch, and means associated with said clutch and operated b y'm'ovement of said-clutch part to move said treating 42. In a machine for treating shoe'parts, a

i treating roll-mounted for movement toward and away froml the wjork, a latch for holding said treating roll out of engagement with the work, drivingA means for said roll including a clutch having relatively movable clutch parts, operatori controlled means spring pressed in one direction and operable against the' tension of theA spring to allowa driving engagement of the clutch. parts and effective when released to utilize the power supplied 'to the machine for disengaging the clutch parts, 'and means operated by disengaging movement of a clutch part for moving said treating'roll away from the work tov a posi- ARTHUR s. JOHNSON,

said latch and