US2080035A - Machine for pressing soles on shoes - Google Patents

Description

May M, 1937. 5. J. FINN 2,030,035 I MACHINE FOR PRESSING SQLES ON SHOES Filed Sept. 29, 1932 v Sheefs-Sheet 1 May 11, 1937. s. J. FINN 2,080,035

MACHINE FOR PRESSING SOLES ON SHOES Filed Sept. 29, 1932 7 Sheets-Sheet 2 ay M, 1937.. 5. J. FINN 2,080,035

MACHINE FOR PRESSING SOLES 0N SHOES Filed Sept. 29, 1932 7 Sheets-Sheet 3 May 11, 1937. J F|NN 2,080,035

MACHINE FOR PRESSING SOLES ON SHOES Filed Sept. 29, 1932 7 Sheets-Sheet 4 l I52 53 v 42 0 5e 47 48 V 58 1 la 2/ l E/\/7Z7,Q

May 11, 1937. 5. J. FINN 2,080,035

MACHINE FOR PRESSING SOLIES ON SHOES Filed Sept. 29, 1932 v Sheeis-Sheet 5 I 6 A 8 any gammy/l g H i mmumiiiii n 1.1 ml 58 .0 $5 '55 560 n iiillii Z 1 Hum,

' lmmmmlmlm a0 57 |||||||||Q wl|11||m 5 May 11, 1937. s. J. FINN 2,080,035

MACHINE FOR PRESSING SOLES 0N SHOES Filed Sept. 29, 1932 7 Sheets-Sheet 6 May 11, 1937. v 5. J. FINN 2,080,035

MACHINE FOR PRESSING SOLES ON SHOES Filed Sept. 29, 1932 7 Sheets-Sheet 7 iiti atented May it, i937 TAT E S PATENT OFFICE MACHINE roa rnsssmo SOLES N SHOES Application September 29, 1932, Serial No. 635,397 In Great Britain September 13, 1932 133 Claims.

This invention relates to machines for use in the manufacture of shoes and is illustrated herein as embodied in a machine for use in the cement attachment of soles to shoes.

In the attaching of soles to compo shoes, it is the usual practice to roughen the marginal face of the sole, apply cement thereto, and allow it to dry. The overlasted margin of the upper is also roughened, similar cement applied thereto, and allowed to dry. Before relatively locating the shoe and the sole and placing them under pressure, a softener is applied to the cement on the sole and the shoe bottom, or to the cement on one of those parts, preferably on the sole, which softener activates the cement and causes the shoe and sole to adhere permanently to each other after the application of pressure for a suitable time, formerly from twenty to thirty minutes.

Recent developments in the art, such, for example, as that disclosed in Letters Patent of the United States No. 1,959,321 granted May 15, 1934, upon an application filed in the name of Walter H. Wedger, have produced softeners by the use of which the time during which the shoe need vremain under pressure has been greatly shortened, so that the number of devices'in use at one time for maintaining the shoes and soles under pressure may be greatly reduced.

' A general object of this invention is to provide an improved machine for pressing together shoes and soles which will be thoroughly effective in obtaining contact under reasonable pressure between the shoes and soles at all portions which are to be united. The illustrated machine is capable of large production and is particularly convenient under conditions such that the pressure need not be maintained for a great length of time.

Other objects are to insure that a predetermined pressure will be applied to each shoe, and to insure that the machine controls will be operated in the proper order.

Further objects of the invention are to provide improved means for relatively locating the shoe and sole prior to the application of pressure, to render the introduction of the shoe and sole into the machine and the removal of the shoe from the machine easy and convenient, and to provide sole pressing pads with improved means for readily varying the longitudinal curvature or profile of ,the pad to meet different conditions of work presented by different shoes to which soles are to be attached.

With these objects in view, a feature of the invention consists in an organization comprising a carrier arranged for intermittent movement past an operating station and a plurality of pads on the carrier arranged with their sides, that is, with one of their longer sides, toward the operator. As illustrated, the carrier is a turret mounted for rotation about a vertical axis and the pads are arranged with their long axes tangent to the path of rotation of the turret.

Another feature of the invention consists in. abutments or holddowns for the shoes, each comprising a toe rest and a heel rest arranged for movement from a position where they are not over the pad into operative position over a shoe on the pad from that side of the pad which is remote from the operator. As illustrated, the 5 abutments move radially of the turret into and out of position over the pads and are carried by bails mounted for swinging movement about axes located below the pads and extending lengthwise thereof. s

As another feature of the invention, fluidpressure-operated means is provided for effecting vertical movement of the abutments to apply pressure to the shoe. As illustrated, an expansible member is provided between a fixed supportfor the pad and a member, carried by the axis on which the abutment is mounted, expan- -sion of which by fluid pressure moves the abutment toward the pad to press a shoe thereon.

A further feature of the invention consists in a pump mounted on the turret and rotatable therewith for supplying fluid under pressure to the fluid-operated means. Preferably, and as illustrated, the pump is operated prior to and during each step of rotation of the turret and is brought to a stop at the end of each step. This construction avoids the use of rotary or slip joints between the turret and a stationary source of fluid supply. In the illustrated machine each fluidoperated means is provided with a valve having inlet and outlet positions controlling the admission of fluid from the pump to the fluidoperated means and exhaust of fluid therefrom.

As a further feature of the invention, operatorcontrolled means is provided at the operating station for moving each valve to inlet position and thereafter setting the pump in operation.

In accordance with further features of the invention, the operation of the pump and the rotation of the turret are controlled by separate clutches, and means dependent for its action on rotation of the turret is provided for moving each valve in turn to exhaust position as it approaches the operating station. As illustrated, pressure is relieved from the pad next to come to the operating station simultaneously with the application of pressure to a shoe at the operating station, these actions taking place preferably while the mechanism for rotating the turret is in motion.

Another feature of the invention consists in novel means for adjusting the support of the forepart of the pad to vary the angular relation of the forepart and the shank portion of the pad and for insuring that the support will remain in place after such adjustment has been effected.

Another feature of the invention consists in a suitably mounted pin for locating the rear end of the sole which preferably engages a hole in the lateral center of the sole. As illustrated, the pin is mounted upon a tongue movable bodily longitudinally of the pad and restrained from movement laterally thereof. Preferably the tongue is arranged to swing heightwise of the sole to facilitate engagement of the pin with the hole in the sole to locate the rear end of the sole laterally with respect to the pad.

A further feature of the invention consists in forepart sole gages arranged for movement into and out of operative position laterally of the pad and having only a slight'movement longitudinally of the pad. Preferably the gages contact with the sides of the sole at points approximately at the end of the tip line and at the ends of the ball line and are provided with shoe gages by which the shoe is located in proper relation to the sole.

In accordance with a further feature of the invention, forward movement of the shoe is utilized to lock the gages against separation. As illustrated, members carried by the gages have teeth arrangedto engage teeth formed upon a fixed member, forward pressure of the shoe against the gages causing slight longitudinal movement of the gages with consequent engagement of the teeth and locking of the gages.

Another feature of the invention consists in an extensible sheet connecting the gages on one side of the shoe with the gages on the other side of the shoe, the gages being separated against the tension of the extensible sheet to permit introduction of the sole and being brought into engagement with the sole by contraction, of the sheet. In the illustrated machine, means operated by rotation of the turret is provided to effect separation of the gages, and manually operated means is provided for permitting the gages to engage the sole. The extensible sheet may be made of rubber reinforced at its edges and, in

accordance with another feature of the invention, the sole gages may extend through the rubber sheet to prevent the edges of the sole from passing under them.

Still another feature of the invention consists in means operated by pressure of the shoe upon the pad for locking the gages in operative position. As illustrated, plates, preferably perforated, are connected with the gages and extend under the forepart of the shoe between the sheet and the pad so that pressure of the shoe upon the pad will lock the plates against movement and thus prevent separation of the gages.

Still another feature of the invention consists in novel means for locating the rear end of the shoe with respect to the sole. As illustrated, equally and oppositely movable members are arranged to engage opposite sides of the rear end of the shoe to centralize the rear part of the shoe with respect to the rear part of the sole as determined by the sole locating pin. Preferably movement of the rear part locating mernbers into operative position is controlled by manually operated means which. as illustrated, may be the means by which the shoe engaging device or abutment is swung over the shoe.

Still another feature of the invention consists in a single manually operated-means for controlling the operation of the gages, for moving the shoe engaging abutment into operative position, for turning the valve, and for operatingthe clutches which .control the pressure applying means and the rotation of the turret, in proper sequence. As illustrated, the manual means consists of a treadle which permits movement of the shoe and sole forepart gages into operative position and movement of the gages for the rear part of the shoe into operative position. It then moves the shoe engaging abutment over the shoe and turns the valve at the operating station to inlet position. The treadle then becomes disconnected from these devices and, upon further movement, operates the clutch for starting the pump and the clutch for setting the turret rotating mechanism in operation. Disconnection of the clutches is, as illustrated, controlled by rotation of the turret without regard to the position of the treadle.

The above and other features of the invention will appear more fully from the following description when read in connection with the accompanying drawings and will be pointed out in the appended claims.

In the drawings:

Fig. l is a front elevation of the machine in which the present invention is embodied, with parts of the structure broken away to illustrate details;

Fig. 2 is a side elevation of the machine shown in Fig. 1, with parts of the frame and the turret shown in section;

Fig. 3 is a plan view of the. machine;

Fig. 4 is a plan view of a part of the mechanism of the machine below the supporting column;

Fig. 5 is a plan view, partly broken away and partly in section in a plane just below the turret table, to illustrate the turret rotating mecha nism;

Fig. 6 is a detail view in side elevation and on an enlarged scale, illustrating how several of the treadle controlled mechanisms are actuated by the treadle;

Fig. 7 is a vertical section through the fluid pressure controlling means;

Fig. 8 is a vertical section through one of the pad boxes of the machine, showing, on an enlarged scale, a shoe mounted on a pad and the mechanism by which pressure is applied to the shoe;

Fig. 9 is a plan view of the pad box shown in Fig. 8, illustrating in more detail the sole and shoe positioning means;

Fig. 10 is a detail perspective view of the under side of a portion of the forepart positioning means;

Fig. 11 is a perspective view of the upper side of the forepart positioning mechanism shown in Fig. 10; and

Fig. 12 shows in detail the means for actuating the forepart positioning means.

The illustrated machine comprises a frame iii having a base 92 and a casing M above the base for enclosing mechanism of the lower portion of the machine. Above the casing Ed the frame projects upwardly to form a hollow column :6 which supports a rotatable carrier comprising a. circular turret or table l8 haying a downwardly projecting hub portion 20 resting ona ball bearing 22, interposed between the hub and the upper end of the supporting column ii to permit free rotation of the turret about a vertical axis. The turret i8 is held on the frame in vertical alinement with the column l6 by an elongated, hollow sleeve 24 which passes through the hub 20 of the table and extends downwardly through the column it, the sleeve being rotatably mounted in the column and being supported in the machine by an annular flange 26 (Fig. '7), projecting horizontally from its upper end and bearing against the upper surface of the turret table i8. The lower portion of the sleeve is reduced in diameter and extends into the casing I4 to serve as a mounting for mechanism hereinafter to be described. A bushing 25 is mounted in the column I6 below the ball bearing 22 to provide a bearing for the rotatable sleeve 24.

The surface of the turret table I8, as seen in plan view, (Fig. 3) has six large openings 28 formed therein which serve to lighten the table, and solid portions 30 between the openings 28 extend radially from a solid central portion of the table which surrounds the opening at the hub. Beyond the openings 28 the surface of the turret table drops abruptly to form a vertical shoulder 32 which extends completely around the table and, extending horizontally from the bottom of the shoulder 32, is a shelf 33 upon which is mounted a plurality of presser units or pad boxes 34, six boxes being used in the present instance, which are s ,aced equidistantly around and bolted to the upper surface of the shelf 33. Each of the pad oxes is constructed and arranged to receive a shoe and sole and is positioned on-the shelf 33 with its long axis at right angles to a line extending radially from the center of the turret l8 to bisect said axis. The lengthwise dimension of the pad boxes, therefore, will be substantially tangential to the direction 7 of rotation of the turret table and the boxes will be presented sidewise to an operator as they are moved into an operating station at the front of the machine. The turret l8, sleeve 24, and mechanism mounted thereon are rotated with an intermittent motion to present each pad box successively at the operating station by mechanism which will now be described.

A motor drive is provided by a motor 38 (Fig.

4) located on the base I2 at the rear of the casing l4 and connected, through a small pulley 3B and a belt 40, to a large pulley 42 pinned to a horizontal shaft 44 mounted in bearings in the frame of the machine, the shaft 44 extending from right to left or transversely of the machine as viewed in Fig. 1. The motor 36 drives the pulley 42 and shaft 44 continuously during the operation of the machine, a ball bearing 46 being located between the right-hand bearing and the pulley 42 to decrease the friction and take the thrust of the moving parts. The continuous- 1y rotating pulley 42 has a vertical surface formed on its inner side and a friction clutch member gagement with a friction-facing 5i secured to a fixed brake disk 52, in which is formed a bearing for the rotating shaft 44.

An arm 54, having an upwardly projecting yoke which straddles the spool-shaped portion of the friction clutch 48, so that rolls 53 on the inner sides of the arms of the yoke will enter the circumferential groove 49 in the spool-shaped portion of the clutch, is fixed to the rear end of a rock shaft 58 rotatably mounted in bearingson the frame it). An arm 60, fixed to the forward end of the rock shaft 58, extends toward the left (Fig. 1) and has a vertically disposed, cylindrical head 62 formed on its outer end. In the cylindrical head 62 is a vertical recess in which is mounted a plunger 64 having a stem which projects through an opening at the top of the head and has a collar 63 pinned on its upper end to retain the plunger in the recess. A compression spring 53, one end of which bears against the top of the "ertical recess and the other end against the enlarged body portion of the plunger 84, tends normally to force the plunger downwardly to its lowermost position as determined by the collar 66. The lower portion of the plunger 64 is pivotally connected to the upper end of a toggle link It, a lower link I2 of the toggle being pivotally secured to the frame It at I4. The toggle links III, I2 are connected together by a pin I6 which projects for some distance beyond the opposite sides of the toggle. A tension spring GI, connected at one end to the forward portion of the arm 60 and at the other end to the casing i4, tends to pull the arm 60 downwardly to rotate the shaft 58 so that the arm 54 will hold the clutch 48 away from engagement with the pulley 42 when the toggle Ill, I2 is broken.

A treadle I3 fixed on the forward end of a short, horizontal shaft 80, rotatably mounted near the center of the machine in bearings 82 and 83 formed on the base I2, extends upwardly on an incline toward the right-hand side of the machine as seen in Fig. 1. The treadle I8 is held in its normally raised position by a torsion spring 84 surrounding a portion of the forward bearing 82 and having one end extending under the treadle and the other end hooked around a pin mounted in the bearing. On the rear end of the shaft 80, in front of the casing I4, is find an upwardly extending arm 86 carrying on its upper end a roll 88 arranged to engage a downwardly projecting wedge-shaped portion 89 of a horizontal bar 90 mounted just above and in the same vertical plane as the arm 86. The right-hand or forward end of the bar 90 as viewed in Fig. ,1 projects downwardly and is bifurcated, each bifurcation having formed therein a substantially vertical slot 93. These slots receive the projecting ends of the pin I6 connecting the toggle links I0, 12, the weight of the bar 90 being supported by the pin which thus normally occupies the tops of the slots. The other end of the bar 90 is pivotally connected to a downwardly extending arm 92 of a three-armed lever fulcrumed at 94 on the frame of the machine. This three-armed lever performs several functions simultaneously during the operation of the machine and for the present, only its utility in c nnection with the rotation of the turret It will be explained.

Mounted in bearings formed on a casing 96 projecting rearwardly from the column l6 and located a considerable distance above the horizontal shaft 44, is another horizontal shaft 98 parallel to the shaft 44. The greater portion of the shaft is inside the casing 90*but the righthand end projects outside the casing and has pinned thereon a gear I00, equal in size to and meshing with the gear 50 on the shaft M. Inside the casing 96 the shaft I00 carries-a worm I02 which meshes with a worm wheel I04 secured to a vertical shaft I06 mounted in a hearing at the bottom'of the casing and another bearing in a cover I08 which is bolted to the top of the cas ing. The shaft I00 is located behind and directly in line with the center of the turret table I8. Above the casing cover I08 the shaft I06 has mounted thereon a cam H0 and above the cam is mounted a horizontal arm II2 provided with a roll I the purpose of which will now be explained.

Each of the radial arms 30 which comprise the solid portions of the table I0 inside the shelf 33, has a rectangular projection or lug IIS formed on its under side, the lug extending lengthwise of the arm so that it is positioned radially with respect to the circular table I8. A slot 8 is formed in each of the projecting lugs 6, these slots also extending lengthwise of the arms and radially with respect to the table. The arm II2 which carries the roll H4 is of such length and so located that when the arm is at rest the roll I will occupy the inner end of one of the slots II8, thus positively holding the turret against rotation.

When the treadle I8 is depressed, the shaft is rocked to cause the roll 88' to contact with the wedge piece 09 on the bar 90, this contact taking place after a certain amount of lost motion, indicated in Fig. 1 by a space between the roll 88 and the wedge 89. The bar is then moved to the right (Fig. l) to straighten the toggle links I0, I2 which rotates the arm 00 in a clockwise direction to cause the upper end of the yoke 56 to move the spool along the shaft 64 so that the driving gear 50 is moved away from the brake disk 5| and the friction disk of the clutch 08 is forced againstthe continuously rotating pulley B2 to rotate the gear 50. The movement of the bar 90 is suflicient to move the toggle links past the point where the three pivots are in line and projections on the adjacent ends of the links contact with each other to maintain the toggle in straightened position, the spring BI acting to hold the toggle in such position. The spring and plunger construction on the end of the arm 60 provides a yield so that the toggle may be fully straightened after the clutch comes into engagement with the driving pulley t2. Rotation of the gear 50 rotates the gear I00 and the shaft 98, thereby causing the worm I02, meshing with the worm gear I04, to rotate the vertical shaft I 06 to actuate the arm H2. The mechanism described is constructed and arranged to move the arm H2 through one revolution for each depression of the treadle I0, and the roll I Id, at the end of one revolution of the arm M2, normally remains in the inner end of the slot H8 which has just been moved from the right to the left or counterclockwise, as viewed in Figs. 3 and 5. When the roll is in the inner end of the slot II8 the arm H2 is positioned substantially at right angles to the slot, thus locking the table against rotation while the operator is mounting and positioning a shoe and sole on the pad box at the operating station. Upon rotation of the arm H2 in a counterclockwise direction (Fig. 5), the roll tie leaves the slot IEO in the left-hand lug and after an interval enters the slot in the right-hand lug to cause the turret table it and the sleeve 25 to be rotated with the arm H2, thus moving the turret one-sixth of a revolution to bring another pad box into the operating station. After the roll I I4 leaves the slot III! in the left-hand lug N6 the arm H2 travels through space for a part of its rotation before the roll enters the slot in the right-hand lug to cause rotation of the turret. This lost motion allows time for the pressure applying mechanism to operate before the turret starts to rotate, even if the treadle is fully depressed immediately as will hereinafter be mor fully explained.

As stated, the mechanism for turning the tur ret is constructed and arranged to make only one revolution for each depression of the treadle. To accomplish this, even though the operator continues to hold the treadle down, there is provided a lever I20 (Fig. 5) extending forwardly and rearwardly of the machine and fulcrumed on a pin I22 mounted in an ear I2I projecting from the side of the frame, the rear end of the lever I20 carrying a roll I24 which rides on the periphery of the cam disk IIO mounted on the vertical shaft I06. The cam disk IIO has a projection III at one portion of its periphery which rises gradually from a concentric. portion and then drops abruptly to join the concentric portion. The forward end of the lever I20 is pivotally connected by a pair of links I24, I26 to the upper end of an upwardly extending arm I28 of the three-armed lever which is pivoted at 94 to the frame of the machine. Upon rotation of the vertical shaft I06 to rotate the turret table one-sixth of a revolution as described, the cam H0 forces the rear arm of the lever I20 outwardly or to the left as viewed in Fig. 5 as the roll I20 rides up on the projection III. The lever I20 is rocked about its pivot I22 so that its forward arm is moved to the right to swing the upper arm I28 of the three-armed lever inwardly. The three-armed lever is rotated about its pivot 0% to pull back the horizontal bar 90 to break the toggle I0, I2, thus causing the clutch to be moved away from the continuously rotating pulley t2 and the inner face of the gear 50 to be forced firmly against the brake disk 5|. The gear 50 and mechanism driven thereby are thus brought quickly to a stop without any sub- 'stantial overthrow of the moving parts due to their momentum.

It will be seen, however, that before the bar 00 can be pulled back to break the toggle I0, I2, and move the clutch it away from the constantly rotating pulley t2, the wedge-shaped piece 09 must be lifted out of the path of the roll 00 on the arm 86. In order to move the wedge 80 out of the path of the roll 88, the bar 00 is pro vided with an upstanding portion 9| which is pivotally connected by a link I30 to the lower arm of a bell-crank lever I32 fulcrumed on a pin I30 in the casing It and having a vertical arm list the upper end of which is pivotally connected to the forward end of a horizontal lever I30 (Fig. 4) pivotally mounted at I39 on a housing extending from the rear of the casing It. The lever I38 extends forwardly from its pivot H39 and carries a roll I510 mounted between a pair of ears located somewhat behind the central portion of the lever.

A star-shaped cam Hi2 (Figs. 2 and a) is keyed to the reduced portion of the sleeve 2 3, inside the casing id in such a position that the roll 5% of the lever I38 will ride on its periphery. The cam M2 has six projections equally spaced around its periphery and the roll Btu passes over one of these projections each time the turret I8 is rotated to move a pad box into the operating station. Consequently, each time the turret table is rotated one-sixth of a revolution, the forward end of the lever I98 is swung to the left as viewed in Fig. 4 to rotate the bell-crank lever I82 about its pivot I84 and lift the horizontal bar 90 out ofthe path of the .roll 88. The slots 98 in the forward end of the bar 90 permit upward movement of the bar about its pivot I29 without disturbing the position of the toggle links 18, 12, which are holding the clutch 48 in driving engagement with the pulley 42. The bar 90 is now in an elevated position so that it may be moved to the left, as viewed in Fig. 1, by the three-armed lever to break the toggle 10, 12 and release the clutch 48 without contacting with the roll 88 on the lever 86. The mechanism is timed so that the movement of the lower end of the three-armed lever takes place after the bar 90 has been raised out of the path of the roll 88, a short dwell being provided on the outer ends of the star-shaped projections of the cam I42 for this purpose.

- The pad box utilized in the illustrated machine comprises a hollow pad member I44 of heavy rubber the details of which are fully shown and described in applicant's co-pending application Ser. No. 621,231, filed on July 7, 1932. As disclosed in the above-mentioned application, the hollow pad I44 is rectangular in plan view and has an upper surface which conforms substantially to the longitudinal contour of the bottom surface of a shoe, the pad being filled with a conformable material such as sand so that it will conform more readily to the curvature of the shoe bottom. As also disclosed in theapplication mentioned above, the pad is divided into sections with spaces between, these spaces I45 and I48 (Fig. 8) being located respectively at those portions of the pad which separate the shank supporting portion from the forepart and from the heel end supporting portions of the pad.

The pad I 44 is contained in a rectangular boxlike confining member I50, arranged with one of its longer sides toward the operator and tangential to the path of rotation of the turret. Preferably the box is an aluminum casting, having a horizontal shelf or plate I52 upon which the pad rests, the plate I52 being located slightly more than half way up from the bottom of the box. A plate I54, having a rounded end or rib N6, is positioned between the plate I52 and the forward or forepart supporting portion of the pad, the rib I56 being located in a semicircular depression or groove I51 formed in the supporting plate I52. An upstanding projection or wall I58 is mounted on the plate I54 near its forward end, the purpose of which will be later explained. Mounted on the supporting plate I52, outside the upstanding wall I58, is a member I60 having a vertical slot I6I formed in its lower portion one side of which has formed therein a series of notches I62. The end of the plate I54 is reduced in size to form a handle I64 which extends through the slot I6I in the member I60 and through an opening I53 in the end of the pad box I50. When it is desired to vary the position of the forepart of the pa I44, that is, the section resting on the plate I54 and in front of the space I46 (Fig. 8), to position this portion at the proper angle for the type of shoe being operated on, the handle I54 may be moved manually from one notch to another in the slot IBI rubber pad I65 is inserted between the rear portion of the pad I44 and the plate I52 to compensate for the space occupied by the plate I54.

The sole and shoe must be located properly on the pad I44 before the sole attaching pressure is applied. Accordingly, the means for positioning the sole and shoe on the pad and the mechanism for actuating the sole and shoe positioning means will now be described. Slidably mounted in ways formed by a pair of narrow plates I68, I (Fig. 9) secured by screws I12 to the upper edges of the heel end of the pad box I50 is a slide I14, the inner portion of which is cut away to allow space for the heel ends of the sole and shoe on the pad I44. A rod I16, mounted horizontally in a pair of upstanding lugs I18 (one of which is shown in Fig. 9) formed on the upper surface of the slide I14, provides a pivot for a sole positioning member comprising a thin, pointed plate or tongue I80 secured to a cylindrical body portion I82. Extending downwardly from the under side of the pointed end of the tongue I80 is a small pin I84, the length of which is slightly less than the thickness of an outsole. to enter a hole located in a predetermined position. in the heel portion of an outsole to position the heel end of the outsole laterally of the pad. As shown in Fig. 8, the tongue I80 lies between the outsole and the bottom of a shoe placed on the outsole so that the pin enters the hole from the upper side of the outsole. The. slide I14 can be moved longitudinally of the pad box in the ways I68, I10 so that the operator may locate soles of various sizes in the desired positions with respect to the forepart positioning means. When it is not in use the tongue I80 is held away from the pad by means of .a leaf spring I85 secured to the slide I14 by a screw I 88, the spring being located to extend along the inner side of the lug I18 and under the cylindrical portion I82 of the tongue I80. A rectangular opening I90 is formed in the slide to provide space for the spring under the member I92. The free end of the spring is bent to form an upwardly projecting tooth I92 and a projection formed on the cylindrical portion I82 of the positioning tongue I80, directly above the leaf spring I85, has an angular depression or notch I 94 formed therein complemental in shape to the tooth I92 of the leaf spring. When the positioning tongue I80 is not in use it may be lifted manually from the pad and the tooth I92 will snap into the notch I94 to hold the tongue away from the surface of the pad. When the tongue is in operative position the end of the spring I86 bears against a flattened portion of the projection below the notch I94 to hold the plate firmly against the sole, thus keeping the pin I84 in the hole in the sole.

The means for positioning the forepart or toe end of the outsole comprises a thin sheet of rubber I96 approximately equal in width to the width of the pad box and positioned on the pad I 44 so that it covers the forwardportion thereof. The rear edge of the, rubber sheet I96 is beveled so that it will join the surface of thepad without forming a ridge. The sheet is stretched tightly over the upper surface of the pad and carries the positioning devices which locate the sole and shoe.

The pin I84 is arranged is vulcanized in tothe rubber and extends inwardly from opposite sides of thepad toward the center of the sheet for a short distance beyond the positions occupied by the positioning devices. The fabric material prevents the rubber from stretching excessively at those portions of the sheet at which the positioning devices are located, thereby causing the stretch to take place principally at the inner or central portion of the rubber sheet. When the means which holds the rubber sheet in its stretched condition is released the rubber contracts, causing the positioning devices to advance simultaneously toward the center of the pad to position the sole and shoe thereon. One

margin of the rubber sheet I 96 is clamped between a plate I98 and a metal clamping strip 200, and the other margin is clamped between a similar plate 202 and clamping strip 20%, clamping screws 206 being used to hold the elements together. The plates I98, 202, which are located on the upper side of the sheet, extend inwardly from the outer edges of the pad, and are shaped at their inner edges to conform substantially to the general outline of the sole of a shoe. The portions of the plates which are nearer the front end of the box project inwardly and have grooves 2H), 2I2 formed in their upper surfaces, the grooves being located centrally of the inwardly projecting portions and extending approximately at right angles to the inner edges of the plates. Similar projections are formed at the rear ends of the plates I98, 202,-and grooves 2M, 2I6 are formed respectively in these projecting portions, these grooves also being located centrally of the projecting portions and extending substantially at right angles to the edges of the plates. In-the forward groove 25B of the plate I98 is mounted a sole positioning member or gage 2l8 and another sole positioning gage 2I9 is mounted in the forward groove 2l2 of the opposite plate 202. These sole positioning gages comprise a pair of thin plates (Fig. 11) which are bent at right angles, the bent portions extending downwardly toward the rubber sheet I98 and being divided into two separated prongs or blades which extend through the rubber sheet and, on the under side of the sheet, are again bent at right angles, thereby preventing the gages from becoming separated from the rubber sheet. This arrangement makes it impossible for a sole to work under or be forced under the sole positioning gages during the sole locating operation and assures that the sole will always be in contact with the sole engaging surfaces of the gages when it is being positioned on the pad. The reinforcing layer of fabric material I97 prevents excessive strain on the sole gages during the stretching and contracting action of the rubber sheet, since the sheet will stretch very little at the reinforced portions. The fabric material also prevents the rubber from tearing or splitting at the openings where the sole gages go through the rubber sheet.

Adjustably mounted in the grooves 2H}, 2H2 respectively of 'the clamping plates IQB, 292, on top of the sole positioning gages are, 299, are a pair of shoe positioning members or gages 229, 222. A clamping screw 22 3 secures the gages 2st, 226 to the plate I98, the screw extending through a slot 22I in the shoe gage 226 and a hole in the sole. gage are so that the shoe gage may be adjusted in the'groove 2 Ill relatively to the sole gage. Another screw 2% secures the gage members M9, 222 in the grooves 2|? of the clamping plate m2,

aoeaose and a slot 223 in this shoe gage permits its adjustment relatively to the sole gage 2! so that the edge of the sole can be properly located relatively'to the shoe upper. The shoe gages 228, 222, which are adapted to engage the forepart of the shoe near the ends of the tip line comprise thin plates bent upwardly at their inner ends at right angles to the portions located in the grooves. Secured respectively to the vertical bent-up portions of the gages 228, 222 are small plates 22'5 (Fig. 11) the upper and lower ends of which extend somewhat beyond the bent portions of the gages. These plates form the shoe engaging elements of the gages and their lower ends extend downwardly toward the rubber sheet so as to overlap the sole engaging portions of the sole gages which are located below and behind the plates. This arrangement insures that the shoe gages will always contact with the widest portion of the shoe upper at the tip line even when the widest portions of the shoes are comparatively close to the surface of the pad.

The rear forepart positioning gages, which are arranged to engage the sole and shoe approximately at the ends of the ball line of the shoe,

are similar in construction and operation to the positioning members which engage the sole and shoe at the tip line. A lower or sole positioning gage 228 is mounted in the groove 2 It at the rear end of the plate I98 and, adjustably mounted on the sole gage is a shoe positioning gage 2% secured in the groove by a clamping screw 232. In the rear groove ZIt of the clamping plate 2&2 there is likewise mounted a sole positioning gage 23% extending through the rubber sheet I99 in the manner described and above it is adjustably mounted a shoe positioning gage 235, the gages being clamped on the plate by a screw 238. The shoe positioning gages 2%, 236, however, do not have plates secured to the innersides of their upstanding surfaces for insuring contact with the widest portion of the shoe because the widest portion-of the shoe at the ball line will ordinarily be high enough from the pad to contact with the bent up surfaces of the gages.

Mounted respectively on the forward ends of the clamping plates I98, 282 and secured thereon bytwo of the clamping screws 2% of each plate, are a pair of inwardly projecting, horizontal arms 2 m, 282, the inner ends of which extend forwardly toward the front end of the pad box. The edges of these inner ends are substantially parallel to the front end of the pad box, are slightly convex in shape, and are provided with a series of small teeth 2%. The perpendicular plate or wall I585 on the plate I 55, previously mentioned, curves toward the rear of the shoe at its upper end and has a row of small teeth I59 formed along the top of its inner side whichmesh with the teeth 2M on the ends of the arms 2%, 262 whenever the arms are forced into engagement with the plate I58, thereby locking the positioning gages against separation. A guard 2M, screwed to the top of the plate or wall I58 by screws 2% and extending over the top of the plate and the ends of the horizontal arms res, 2 52, prevents anything from getting between the plate and the arms.

Projecting inwardly and slightly rearwardly from the metal clamping strip 2% (Fig. 10), which is located on the under side of the rubber sheet 6%, is a thin plate 38 of sheet metal, cut out at its central portion. The plate 258 is located between the forwardly projecting portions of the sole positioning members 2m, 226 so that it will not contact with the ends thereof which extend under the rubber sheet I96. A

similar plate 252 projects inwardly from the metal -clamping strip 204 and these plates form addi-.

tional means for locking the sole and shoe positioning gages in operative position after the sole attaching pressure is applied. When the sole and shoe arepressed forcibly against the pad in a manner hereinafter described, the pressure forces the rubber of the sheet I96 and of the pad I44 against the plates 248, 252 to hold them in the positions they then occupy. Since the pressure is applied after the gages have positioned the sole and shoe on the pad, the plates act to lock the gages in proper position as long as the shoe remains under pressure. the inner portions of the locking plates 248 and 262 may be perforated as illustrated at 260 and 264 respectively, the perforations causing the plates to be gripped even more firmly between the pad andrubber sheet, thereby increasing the locking action ofthe plates.

At the outer edge of the metal clamping strip 200 is a rectangular lug 256 provided with a series-oi holes 258. The lug 256 is connected by means of a hook 259 inserted in one of the holes 268 to the upper end of an angle lever 260 (Fig. 12) pivotally mounted on a pin 262 extending between downwardly projecting ears 264 formed on the under side of the shelf 33 of the turret I8.

The angle lever 260 extends horizontally from its pivot 262 a little beyond the lower edge of the pad box I50 and then projects upwardly at right angles to its horizontal portion and substantially parallel to the side of the pad box. Another am 266 of the angle lever 260 extends inwardly toward the center of the pad box and has a pair of teeth 268 formed on its inner extremity. v

The other metal clamping strip 204 has-a rectangular lug 210 provided with a series of holes 212 in one of which is inserted a'hook 213 for connecting the strip 204 to the upper end of another angle lever 214 shaped similarly to the lever 260 and pivotally mounted on a pin 216 in ears 218 projecting from the under side of the shelf 33. An inwardly projecting arm 280 of the angle lever 214 has formed on its inner end a single tooth 282 which meshes with the pair of teeth 268 on the inwardly projecting arm 266 of the angle lever 260, thus interconnecting the levers 260, 214 so that the upper ends thereof move equally and oppositely. Projecting downwardly from the inwardly extending arm 280 of the angle lever 214 is a lug 284 and 9. lug 286 projects downwardly from the under side of the arm 266 of the opposite angle lever 260. A compression spring 288, interposed between the inner surfaces of thelugs 284, 286, and supported by a horizontal rod 290, extending through openings in the lugs and secured in position by a pin in the lug 286, tends normally to force the lugs apart and to move the upper ends of the levers inwardly toward the pad box.

The spring 288, together with the rubber sheet I96, acts to hold the sole and shoe positioning gages inwardly against the sole and shoe. Mounted on a stud in the lower end of the lug 286 is a roll 292 by means of which the upper ends of the angle levers are forced outwardly to stretch the rubber sheet I96 and separate the positioning gages, as will hereinafter be explained.

Two downwardly projecting lugs 294, 296 (Figs. 2 and 8) are mounted on the lower side of the shelf 38 under that portion of the pad which supports the heel end of a shoe and, pivotally If desired.

mounted on a pin '29! extending through ears on the lug 296, is another angle lever 298 similar in construction and operation to the angle lever 260. An inwardly projecting arm 293 of the lever 298 is provided with a pair of teeth which mesh with a single tooth formed on the end of an inner arm 30I of another angle lever 800 pivotally mounted in the lug 294. The upper ends of the interconnected angle levers 298, 300 are urged inwardly toward the pad box by a. compression spring 302 supported by a rod 304 extending between downwardly projecting lugs 303, 306 formed respectively on the lower portions of the levers 298, 300, the downwardly projecting lug 303 ofthe lever 298 being provided with a roll 306 similar to the roll 292 on the \lever 260. The upper end of the lever 298 is cylindrical in shape and has a horizontal opening in which is mounted a shoe-gage 308 having a stem portion adjustably secured in the opening by a set screw 3I0. The shoe-engaging portion of the shoe gage 308 comprises a narrow vertical plate 8 formed on the inner end of the stem and of such length that it will engage the shoe upper at the widest portion of the heel end of the shoe. A similar stem 3I2 is adjustably mounted in the upper end of the angle lever 300. being held therein by a set screw 3. Aver-v tical plate 3I3 is formed on the inner end of this stem for engaging the shoe upper when the gage is moved into operative position. As stated, the gages 3i I, 3I3, are normally urged inwardly toward shoe-engaging position by the action of the compression spring 302;

As each pad box is moved into the operating station at the front of the machine, the fore part positioning gages and the positioning gages for the heel end of the shoe, must be moved away from engagement with the sole and shoe in order to permit removal of the shoe and to provide space for the introduction of another sole and shoe. To this end there is provided a slide member 3l6 (Figs. 2 and 6) slidably mounted in horizontal ways 3I8 formed in the forward end of a bracket 320 bolted to the frame I0 and extending forwardly toward the front of the machine. The forward end of .the slide 3I6 projects upwardly and has formed thereon a segmental member 322 which forms an arc of a circle having a center coinciding with the ver- M6 is moved forwardly in a manner which will presently be described, the member 322 will engagethe rolls 292, 306 which are then being moved into the operating station by rotation of I the turret. The rear end of the slide 3I6 has formed thereon a vertical projection or shoulder 324 and at the central portion of the shoulder is formed a horizontal opening in which is secured a hollow bushing 326 extending rearwardly from the shoulder and having an enlarged portion 328 bearing against the rear surface of the shoulder.

Extending upwardly from the bracket 320 (Fig. 6) behind the slidemember 3I6, is another bracket 330, having a horizontal opening 31 formed near its upper end which is in line with the bushing 326 extending rearwardly from the slide 3I6. Aslide 332 is mounted for reciprocative movement in the opening 33 I, the forward end of the slide carrying a vertical plate 334 which extends downwardly toward the bracket 320. A stud 386 is threaded horizontally into the front end of the slide 332 in such a position that it will extend forwardly into the hollow bushing 32%. The stud may be adjusted in the slide 332 and a lock collar 388 is threaded on the stud to lock it in adjusted position when the collar ls brought against the vertical plate 384. The stud is rounded at its front end so thatit will slide easily in the bushing 32% and a horizontal slot are is formed in its forward portion. A pin it? in the bushing 325 extends through the slot are to limitthe sliding movement of the stud in the bushing and form a means of connecting the rear slide 332 to the forward slide lift. A compression spring 356, one end of which bears against the enlarged portion 328 of the bushing and the other end against the vertical plate 336, tends to force the slides away from each other, so that the pin 3 32 will normally be positioned at the forward end of the slot 8%.

Rotatably mounted between ears on the rear end of the slide 832 is a roll 3% which engages the periphery of a star-shaped cam see (Figs. 2 and 5) keyed to the lower end of the hub 2d of the turret table it. The cam act has six equally spaced projections around its periphery similar in design to those on the star-shaped cam M2 pre-- viously mentioned. v In order to keep the roll 3% against the periphery of the cam std there is provided a compression spring 356 to press the slide 6382 rearwardly. The spring 3% is mounted on a horizontal rod 352 one end of which is pinned in the lower portion of the vertical plate 336 on the forward end of the slide 832 and the other .end slidably mounted in an angular bracket the secured to the supporting surface of the bracket 32d. The spring 3% tends. constantly to force the slide 332 rearwardly to keep the roll 3% against the periphery of the cam tilt. The pro- 'jections on the cam are so located that when a pad box is at the operating station the roll set will be on the top of a projection, as shown in Fig. 5, with the slides 332 and fit in their forward position so that the segmental or arcuate member 322 will be holding the rolls, 292, 359% forwardly. As the turret is rotated a sixth. of a turn to bring another pad box into the operating station, the roll 3% rides from the top of one projection into a depression and on to the top of another projection. The slides 332 and Sit are thus forced rearwardly and forwardly again by the combined action of the sprng 35d and the cam 388. The arrangement and timing of the mechanism is such that the arcuate member 3221s withdrawn from its forward position as a pad box leaves the operating station and is moved forwardly again to engage the rolls 292,

5th on the next pad box after the rolls have been moved sumciently close to the operating station to insure that the member 322 will contact with both rolls as it moves forwardly. As the rolls ass, 23% ride over the convex surface of the arcuate member 322, the member is forced forwardly to rotate both pairs of interconnected levers about their pivots, thereby swinging the upper ends of the levers outwardly to move the shoe and sole positioning gages away from engagement with the sole and shoe. Since the forward movement of the arcuate pusher member 2-322 takes place while a pad box is being moved from a position just in advance of the operating station. the positioning gages will have been withdrawn from engagement with the sole and shoe by the time the pad box reaches the operating station,

aoeaose thereby permitting the operator to remove the shoe from the pad.

As stated, the star-shaped cam 3% holds the pusher member 822 forwardly to keep the positioning gages withdrawn until after the clutch at has been set and until the turret rotating mechanism has begun to rotate the turret a sixth of a revolution. In order to permit the positioning gages to be brought into operative posi-- tion to locate a sole and shoe on the pad at the operating station before the clutch 68 is set and while the star-shaped cam 75% is holding the pusher member 322 forwardly, treadle mechanism is provided for moving the pusher member $22 rearwardly against the action of the compression spring are. This mechanism comprises a horizontal rock shaft 358 mounted above the rear end of the slide 8 it in a pair of brackets 85% located on the bracket 82d and extending upwardly on opposite sides of-the slide member flit. An arm 3%, pinned to the rock shaft 358 and extending upwardly and forwardly, is pivotally connected at its upper end tothe upper end of a treadle-operated rod 362. The lower end'of the rod 362 extends through an opening formed in a rearwardly projecting'portion E9 of the treadle it (Figs. 1 and 2) and has secured on its lower end a bifurcated member 366 in which is mounted a roll 365. Above the roll 36% the bifurcated member is provided-with a horizontal surface 368. The treadleit has a pair of ears extending downwardly from the rearwardly projecting portions 79 and mounted between these ears are rolls 37b. 3W which are located directly above the horizontal surface 368 so that when the rod 352 is in an elevated position they will contact with the surface 368. An opening is formed in the frame i2 below the rod 352 and adjustably secured to one side of this opening is an annular cam piece 372 having a surface did formed thereon inclined laterally with respect to the treadle and located in the path of movement of the roll 3%. When the treadle it is depressed the rod 362 is lowered by engagement of the rolls are, lift with the surface Site on the member tilt attached to the lower end of the rod. Downward movement of the rod swings the arm 3ft downwardly to rotate the rock shaft 358 in its bearings in the brackets 356.

As the treadle it nears the end of its downward movement the roll 31% on the lower end of the rod 362 contacts with the inclined surface 375 of the cam piece 3W2 so that the rod is deflected laterally to move the upper surface 368 of the bifurcated member 366 out from under the rolls did, bit. The rod 382 is normally held in vertical position by a leaf spring tit secured to and extending forwardly from a boss on the side of the frame. The forward end of the spring is looped loosely around the rod SE52 and as the rod is deflected by the cam surface 37% the spring bends with it. When the surface 3% clears the rolls 23W, bit the rod is elevated by a compression spring flit surrounding the rod 362 and hearing at its upper end against a collar 3% pinned to the rod and at its lower end against the looped end of the leaf spring 378. The leaf spring 3% returns the rod to vertical position. and carries the roll 3% against an inclined surface 382 formed on the rear portion is of the treadle i8, this surface acting to move the roll 3% toward the left (Fig. 2) as the treadle returns to its elevated position thereby causing the bifurcated member 3% to ride past the rolls did, 379 until it is again forced under the rolls by the action of the leaf spring Sit. The vertical projection 32d on the rear end of the slide 3I6 (Fig. 6) extends upwardly behind the rock shaft 358 and a cam disk 384, pinned to the shaft 358, has a downwardly projecting, eccentric portion 386 adapted to be moved against the adjacent surface of the shoulder 324 when the rock shaft 358 is rotated in a counterclockwise direction by movement of the treadle-operated rod 362 downwardly. This forces the slide 3I6 rearwardly against the compression spring 344, the slot 340 in the stud 336 being long enough to permit the pin 342 to travel with the bushing 326 without contacting with the rear end of the slot. As the arcuate pusher member 322 on the slide 3I6 is moved rearwardly, the spring 302, and the spring 288, if used, assisted by the rubber sheet I96, force the upper ends of the two pairs of interconnected angle levers inwardly toward the center of the pad I44, thereby carrying the sole positioning gages inwardly against the edges of the sole and movingthe heel gages inwardly toward the center of the pad. The location and action of the angle levers 260, 214 which control the stretching of the rubber sheet H6 is such that when the upper ends of the levers are swung outwardly by engagement of the roll 292 with the arcuate member 322, the stretch of the rubber is greater at that part of the sheet which lies under the ball portion of the shoe than at the portion near the front end of the pad. This causes the horizontal arms 240, 242 which are arranged to mesh with the toothed plate I58 at the front end of the pad box, to be drawn away from the plate I58. Conversely, when the levers swing inwardly to bring the gages against the sole the contracting action of the rubber sheet causes the inner ends of the arms 240, 242 to be moved forwardly into close proximity to the toothed plate I58. When the sole gages contact with the edge of the sole they stop, the contracting force of the rubber sheet and the strength of the spring 288, if used, being together only suf flcient to cause the gages to be pressed firmly against the edge faces of the sole without causing it to buckle. If desired, the spring 288 may be dispensed with altogether and reliance may be placed on the rubber sheet for actuating the gages. Since the forepart gages are mounted on the rubber sheet I90 and are moved into operative position by the contraction of the rubber sheet, they will, of course, be yieldable to a certain degree. The arrangement of the means by which the rubber sheet is stretched and is allowed to contract, namely, the pivotal connections formed by the hooks 259, 213 which connect the clamping strips 200, 204 respectively to the upper ends of the angle levers 260, 214, permits a. certain amount of lateral movement between the positioning gages which contact with the sole at the ends of the tip line and those which engage the sole near the ball line. Consequently, the forepart gages are capable of limited lateral movement relatively to one another and will thus, without adjustment, accommodate themselves to various shapes of outsoles. The timing of the machine is such that the treadle-operated rod 362 will not be cammed from under the rolls 310, 3' and returned to its elevated position until after the clutch 48 has been set to operate the turret rotating mechanism, thus preventing the pusher member 322 from moving forwardly to withdraw the positioning gages from the sole and shoe before the sole attaching pressure has been applied.

After the sole has been placed on the pad and the positioning gages at the toe end of the pad have been moved into engagement with the forepart of the sole in the manner described, the shoe to which the sole is to be attached may be introduced between the shoe engaging surfaces of the shoe gages. The gages 308, 3I2 for-the heel end of the shoe are arranged to'reach shoe engaging position a little later than the forepart positioning gages. This permits the operator to introduce the shoe between the forepart positioning gages and to lower the heel end of the shoe against the sole before the heel gages contact with the heel portion of the shoe. When the heel gages contact with the heel end of the shoe they move it into a proper lateral position relatively to the sole which, as stated, is positively held in position at the heel end by the pin I84 projecting from the tongue I00.

After the shoe and sole have been located properly with respect to each other on the pad at the operating station, they must be pressed forcibly together in order to cause the sole to become permanently attached to the shoe. Accordingly, the mechanism in the illustrated machine for applying the sole attaching pressure will now be described. 8

A hollow, flexible bladder or bag 388 (Fig. 8) composed of rubber or other yieldable material, for example, a portion of an inner tube for an automobile tire, is clamped to the under side of the horizontal plate I52 of each pad box I50. The clamping means comprises a pair of clamping bars 390, 392 which extend transversely of the pad box and clamp the front and rear ends of the rubber bag respectively to the supporting plate I52, the bars being held in clamping position by bolts 394. The hollow portion of the bag 388 between the clamping bars 390, 392, is adapted to be inflated with a fluid or liquid, for example water, and by such inflation to cause a downward pressure to be exerted against the shoe and sole. The upper surface of the bag 388 is held closely in contact with the plate I52 by the clamping bars 390, 392 and the sides of the bag are prevented from distending beyond a limited amount by engagement with the sides of the confining member or pad box I50. The opposite ends of the rubber bag are confined between a pair of vertical guides H4, H6, extending downwardly from the inner sides of the clamping bars 390, 392 so that when the bag is inflated the lower side is the only portion thereof that is substantially distended. Liquid is admitted to inflate the rubber bag through an opening 398 formed in the upper side of the bag; An opening 398, registering with the opening 396 in the rubber bag, is formed in the supporting plate I52 and through these openings is inserted a vertical nozzle 400 of a casting 402 which rests on the supporting plate I52 and extends under the pad I44. The casting 402 is provided with a horizontal passage 404 which communicates with an axial passage 406 in the vertical nozzle 400. The other end of the casting 402 extends beyond the inner side of the pad box I50 and is provided with an opening into which is threaded the forward end of a pipe 400 (Fig. 3) through which liquid is admitted and expelled from the rubber bag 388. The lower end of the nozzle 400 extending inside the bag is threaded to receive a nut which clamps the casting 402 and the upper side of the bag tightly against the supporting plate I52, a fiber washer 4I 2 being mounted between the nut M0 and the bag to make the connection water tight.

As stated, the vertical guides 4, 4| 8, which form the confining means for the opposite ends of the rubber bag 388, project downwardly from the inner sides of the clamping bars 390, 392 respectively. The guides are slotted at their lower edges and in these slots is located a plate-like member or plunger 4l8 which is arranged for vertical reciprocative movement below the rubber bag, the guides acting to prevent endwise or longitudinal movement of the plunger M8. The plunger is provided with a horizontal upper surface 420 which is normally held in engagement with the lower side of the bag and extends between the inner sides of the vertical guides M4, M6. The plunger 8 is preferably composed of comparatively light metal, such as aluminum, and the opposite ends thereof extend through vertical slots 422, 424, formed respectively in the toe and heel ends of the pad box I below the supporting plate 452. The slots extend to the bottom of the pad box and, together with the slots in the vertical guides 4 I4, 4l6, determine the lateral position of the plunger 4l8 relatively to the pad box I50. The plunger 4"! is maintained in its uppermost position with its horizontal upper surface 426 contacting with a portion of the lower side of the bag 388 by means of a pair of grasshopper springs 426, 428 mounted respectively on studs 430, 432 located under the horizontal surface 420 near opposite ends of the plunger. The upper arms of the springs bear against the under side of the surface 420 of the plunger and the lower arms, which are slightly curved at their lower extremities to facilitate the action of the springs, bear against the shelf portion 33 of the turret l8. The springs are strong enough to support the plunger and parts mounted thereon and to hold the upper surface 426 of the plunger lightly against the lower side of the rubber bag. When downward pressure is exerted against the plunger, however, the springs will yield to permit it to descend. The ends of the plunger which extend through the slots 422, 424, in the opposite ends of the pad box are provided with upwardly projecting ears between which is pivotally mounted a yoke or ball 434 which projects upwardly from the ends of the plunger and extends over the pad box longitudinally of the pad A slotted plate 436, adjustably mounted on the bail 434 over the forepart supporting portion of the pad and held thereon by screws, has a threaded cylindrical portion 438 projecting downwardly from the underside of its forward end.

The cylindrical portion 436 has a vertical bore which receives the stem 439 of an adjustable toe rest 440, the lower portion of which has a conical surface 442 engaged by a leaf spring 444. The leaf spring 444 is riveted to a knurled hand nut 446, threaded on the cylindrical portion 438 below the plate 436, and the nut 446 may be screwed up or down to adjust the toe rest vertically. The shoe engaging portion of the toe rest comprises a slide member 448 having a T-shaped slot and being mounted on a horizontal plate 45!] secured to the lower end of the stem 439. The lower or shoe engaging surface of the slide member 448 is covered with a piece of felt which is held in position by a strip of leather secured to the sides of the slide member by screws. This prevents the toe rest from scarring the shoe upper when it is pressed against the shoe during the pressure-applying operation.

At that part of the bail 434 which extends over the heel portion of the pad I44 is formed a projection 452 having an inclined lower edge which extends downwardly toward the central portion of the pad and is provided with teeth 454. Inclined guideways are formed on the opposite sides of the projection 452 and slidably mounted in these guide-ways is a heel engaging member 456 (Fig. 8) for engaging the cone. of a last B in a shoe A mounted on the pad I44. The heel or cone engaging member 456 has a slot formed therein the bottom of which is inclined at the same angle as the lower edge of the projection 452. The bottom of this slot is also provided with teeth which mesh with the teeth on the projection 452. The member 456 is normally urged against the projection 452 to hold the teeth in engagement by means of a compression spring 458 mounted in a recess in the upper portion of the member 456 and bearing against a surface formed on the upper part of the projection. When it is desired to adjust the heel engaging member for different sizes of shoes, it may be pulled downwardly against the spring 458 to release the teeth and moved along the projection until the desired position is reached. The spring 458 then forces the teeth into engagement to hold the member 456-in its adjusted position on the projection 452.

As stated, the bail 434 is pivotally mounted on ears which project upwardly from opposite ends of the plunger M8 and is thus movable about an axis which is below the pad and extends beneath it. The pivotal movement of the ball is from a vertical or operative position over the pad 444 to a rearwardly inclined position which removes the bail and shoe engaging devices 440, 456 from over the pad to a position where they are not over the pad and provides space for the operator to position a sole and shoe thereon. A pin 450, mounted on the bail at the heel end of the pad box, extends into an arcuate slot 462 (Fig. 2) formed in the end of the pad box to limit the pivotal movement of the bail 434. At its outer end the slot 462 extends downwardly in a vertical direction to guide the bail 434 in its vertical downward movement in response to fluid pressure exerted against the plunger 448.

In applying pressure to the sole and shoe the bail 434 is first moved into a vertical position by treadle-operated means, which will be described, and is then moved downwardly by distention of the rubber bag- 388. As the bag is inflated the lower side is distended against the surface 420 of the plunger M8 to force the plunger downwardly against the supporting springs 426, 428, thus moving the bail 434 downwardly until the last and shoe engaging members carried thereby are brought into engagement respectively with the last and shoe. The plunger is guided longitudinally in its downward movement by the vertical guides 444, M6 on the clamping bars 390, 392, and the slots 422, 424 in the ends of the pad box, as well as the slots in the vertical guide plates, prevent the plunger from getting out of position laterally. As

the pressure in the bag increases the ball is moved downwardly with greater force to apply greater pressure to the shoe and sole. While pressure is being applied to the sole and shoe, the clutch 48 is set and the turret rotating mechanism causes the turret to rotate to carry the pad box away from the operating station.

The bail 434 is elevated from its rearwardly inclined, inoperative position to a vertical, shoeengaging position by trea dle-operated means actuated by the treadle-controlled rod 362 previously mentioned. An upwardly and rearwardly projecting arm 464 of the bracket 356 has pivotally mounted on its further side, as viewed in Fig. 6, a forwardly extending lever 466, the fornected at its inner end through a compression ward end of which is enlarged and has a flat upper surface for engagement successively with the lower ends of a series of spring plungers 468 (Fig. 2) vertically mounted in bosses 418 projecting upwardly from the turret I 8 and located near the inner corners of the front ends of the pad boxes I58. Each plunger 468 is made up'of two parts, an upper portion having an enlarged head resting normally against the upper edge of the boss 418 and bored vertically to receive a lower portion which is held in the upper part by a slotand-pin connection. A compression spring 412, one end of which bears against the top of the bore in the upper element of the plunger and the lower end against the inner end of a vertical bore formed in the lower element, keeps the two elements separated so that the plunger is normally extended to its greatest length. An inwardly extending arm 414, integral with the lower end of the bail 434 at the toe end of the pad box, has mounted on its inner end a roll 416 which contacts with the enlarged head of the plunger 468 when the bail is in its rearwardly inclined or inoperative position. A cam disk 418, having an eccentric portion 488, (Figu- 6) is pinned to the end of the rock shaft 358 in such a position that the periphery of the cam comes under the lower edge of the forwardly extending lever 466. When the rock shaft 358 is rotated by downward movement of the treadle-operated rod 362, the eccentric portion 488 of the cam disk 418 will rotate the lever 466 about its pivot so that the outer end of the lever, after moving through a space between it and the plunger 468, during which time the positioning gages are operated, will engage the plunger and force it upwardly. Upward movement of the plunger 468 forces the end of the arm 414 upwardly 'to swing the bail 434 into a vertical position over the pad. When the pin 468 in the bail 434 contacts with the forward end of the arcuate slot 462 in the pad box, the ball is prevented from further swinging movement, the compression spring in the plunger providing a yield for any further upward movement of the lever 466. Before this treadle-operated mechanism is released by deflection of the rod 362 by the cam surface 314, as previously described, the bail 434 has been caused to descend and apply pressure to the shoe and sole and will, therefore, be maintained in vertical, pressure-applying position until the liquid is expelled from the rubber bag 388, after which the bail is returned to elevated position.

The rubber bag 388 is expanded to apply pressure to the sole and shoe by means of liquid which is forced into the bag under pressure by a pump 482 (Fig. 2). The pump is clamped on the lower end of the vertical sleeve 24 and rotates with said sleeve. An intake pipe 484 extends downwardly from the pump into a supply tank 486 located in the base of the machine and containing the liquid by which pressure is applied. The pump is thrown into operation by means of a friction disk clutch 488 keyed to a vertical sleeve 498 rotatably mounted on the hollow sleeve 24. On the lower end of the sleeve 498 is formed a gear 492 which meshes with a driving gear 494 for the pump 482. Loosely mounted on the sleeve 498, above the gear 492, is a worm gear 496 meshing with a worm 498 formed on the horizontal shaft 44 which is continuously driven when the motor 36 is running, the worm 498 constantly rotating the worm gear 486 about the sleeve 498. An inwardly extending arm 588 (Figs. 1 and 2) of the three-armed lever which is pivoted at 94, is conspring arrangement 582 to the forward end of a horizontal lever 584 pivoted at 586 to 9. lug 581 projecting downwardly from the upper portion of the casing H, the lever 584 having an inner arm 589 (Fig. 4) in the form of a yoke which is provided with a pair of rolls 588 adapted to enter a circumferential groove 5 formed horizontally in the hub portion of the clutch member 488. The compression spring arrangement 582 between the levers 588 and 584 comprises. a pair of oppositely positioned wire hooks extending through the ends of the levers and being surrounded at their central portions by a compression spring so that a yield is provided between the ends of the levers. The mechanism just described is operated in the following manner:

As the treadle I8 is depressed and begins to straighten the toggle links l8, 12, to move the friction clutch 48 into engagement with the con stantly rotating pulley 42, the bar 98, which is pivotally connected at |2 9zto the lower arm 92 of the three armed lever, rotates this lever about its pivot 94 to move the inwardly extending arm 588 upwardly. The horizontal lever 584 is thereupon rotated about its pivot 586 in a clockwise direction, as viewed in Fig. 2, to force the clutch 488 downwardly into engagement with the upper surface of the worm gear 496 which is constantly rotated by the worm 498. When the clutch 488 is thus forced against the rotating worm gear 496, the sleeve 498 is rotated to drive thegear 494 which operates the pump 482. A ball-bearing 5l8, 'mounted on the sleeve 24 above the split housing by which the pump is clamped to the sleeve 24, forms a support for the sleeve 498 which carries the clutch 488 and worm gear 496. The ball bearing 5l8 takes the thrust of the parts when the clutch 488 is forced into operative engagement with the worm gear 496.

As stated, the pump 482 is clamped to, and rotated with, the vertical sleeve 24 so that when ever the turret I8 is rotated the pump moves with it, the supply tank 486 being large enough to permit the intake pipe 484 to travel in a circular path around the tank. This arrangement permits the pump to be operated while the turret table is rotating and to supply fluid under pressure to actuate the pressure applying units or plungers in any position of the turret table without having water tight joints between the source of pressure supply and the points of its application, for example, between the movable turret and its supporting column, as is usual in machines of this type. In the present construction it is practically impossible for leakage to occur between the pump and the pressure applying devices since no rotary joints are needed to con nect the pump 482 with the fluid operated plungers on the rotating turret I8.

Since the friction clutch 488 is actuated by the arm 588 of the three armed lever which also controls the operation of the clutch 48 for rotating the turret l8, it will be seen that when the bar 98 is returned to inoperative position through the operation of the cam H8 and mechanism cooperating therewith as described, the forward end of the arm 588 is lowered to rotate the horizontal lever 584 and raise the clutch 498 away from its engagement with the constantly rotating worm gear 496 so that operation of the pump will cease each time the turret table comes to a stop. As stated, the pump will start to operate before the clutch 48 is set to'actuate the turret rotating mechanism and before the treadle-controlled rod 362 is deflected by the cam surface 614. Consequently, liquid will be pumped into the rubber bag 383 to lower the ball into engagement with the shoe before the rod 362 returns the bail swinging mechanism to inoperative position. If the operator desires to apply the full pressure to the shoe before the turret starts to rotate he may do so by holding the treadle depressed part way to actuate the pump but not far enough to set the clutch 48. In this way he will cause fluid to be forced into a rubber bag 388 to actuate the plunger 3 without causing the turret rotating mechanism to be actuated.

Since the pressure applied to the shoes and soles. is determined by the pressure .in the rub-.-

ber bags 388, the illustrated machine is provided with means whereby the pressure in the bags may be regulated and controlled so that only a predetermined pressure will be applied to the shoe and sole. The mechanism for supplying liquid under pressure to the rubber bags 388 and for controlling the pressure of the liquid will now be described. When the pump 482 starts operating, liquid, for example water, is drawn from the supply tank 486, through the intake pipe 464, into the pump 482 and is then forced through a pipe 5l2 connecting the pump to the lower end of a vertical inlet pipe 5l4 (Figs. 2 and 7) which extends upwardly through the hollow sleeve 24 and at its upper end is threaded into the lower portion of a circular casting 5l6, resting in a depression 5" formed at the center of the turret table i8. The circular casting 5i6 forms the pressure controlling unit from which' liquid under a predetermined pressure may be supplied to the rubber bags. The upper end of the inlet pipe 5 connects with a vertical opening -5I8 in the casting 5l6 which communicates with a circular pressure chamber 520 formed in the upper portion of the casting.

A ball check valve 522 is located at the top of the passage 5I6 which communicates with the pressure chamber 528 and when the valve 522 is seated no water can leave the chamber. A light compression spring 524 bears against the top side of the ball valve 522 and normally holds it against its seat in the opening 5l8, the upper end of the spring bearing against the top of a circular recess 526 formed in the lower portion of a pressure gage 528 threaded into a boss on the upper wall of the chamber 520 above the inlet pipe 5M. As liquid is pumped through the inlet pipe 5l4 into the chamber 520, the check valve 522 is forced away from its seat by the pressure of the liquid, so that as long as the pump is operating, liquid is passing into the pressure chamber 520.

Located at equal distances from each other around the vertical side wall of the chamber 520 are six horizontal openings or passages 530 which extend radially from the chamber 520 and form the means by which liquid is admitted to the six rubber bags 388 of the pad boxes I56. These passages 530 communicate with a circular chamber 532 formed-near the outer edge of the casting 516. Another check valve 534, similar in construction to the valve 522, is provided at the outer end of each of the passages 536, the valves 534 being normally held against their seats by light compression springs 536. The circular chamber 532 is connected by short, vertical passages 544, formed at the bottom of the chamber, with six horizontal passages 546, located directly below the passages 536 and extending radially through the outer wall of the casting 5i6.

At its inner end each of the passages 546 opens into another circular chamber 546 located below and having substantially the same outside dimensions as the pressure chamber 526. Unlike the chamber 526, however, the chamber 548 is not one continuous opening but is formed as a circular passage which extends around an inner portion of the casting M6. The outer wall of this portion of the casting 5i6 forms the inner wall of the circular chamber 548 and is positioned considerably nearer the outer wall of the circular passage 548 at one side of the passage than at the other. The outer ends of the passages 546 which lead from the circular chamber 548 are connected to the inner ends of pipes 546, which in turn are connected by unions 550 to the pipes 468 that communicate with the rubber bags 386 in the pad boxes I50. It will be seen from the above that the rubber bag of each of the pad boxes on the turret table I8 is supplied with liquid from the pressure chamber 526 by means of a separate set of passages leading from thepressure chamber 526.

Liquid is admitted to and expelled from each rubber bag through the'single conduit or pipe 403, 549 which connects each bag with themessure controlling unit 5l6 and it is therefore necessary to control the passages through which the liquid passes in such a manner that the liquid will be forced into the bag under pressure, be retained under pressure during the pressing operation, and beexpelled from the bag only after the pressing operation has been performed. To this end there is provided for each set of passages a two-position taper valve or cook 552, rotatably mounted in a suitably shaped opening formed in a solid portion of the casting 5l6 between the pressure chamber 526 and the outer chamber 532 and extending across the passages. 530 and 546. .The taper valve 552 is provided with two horizontal passages 554 and 556 which pass through the center of the valve and are equal in size to the passages 53!] and 546. The passages 554 and 556 are located respectively in the same horizontal planes as the passages 530 and 546-, the upper passage 554 being positioned at right angles to the lower passage 556. When the valve 552 is rotated in the casting 506 until the passage 554 registers with the passage 530, a continuous opening will be formed from the pressure chamber 520 to the circular chamber 532 and the lower passage 556 of the valve will be positioned so that the passage 546 will be closed. Conversely, when the valve 552 is rotated ninety degrees from the position just described, the upper passage 530 will be closed and the lower passage 546, leading to the chamber 548, will be opened. The lower portion of each taper valve 552 is reduced to form a shaft 558 which extends downwardly beyond the casting 5i6 through a circular opening 560 in the turret table l8. A compression spring 562 encircles the upper portion of the shaft 558, the lower nd of the spring bearing against a collar 564, supported by a pin 566 extending through the shaft 558. The upper end of the spring 562 presses another collar 568 upwardly against a surface formed on the under side of the casting 5l6, thereby keeping the valve 552 seated in the casting M6 and creating enough friction between the valve and the casting to hold the valve in proper position until it is forcibly rotated into another position.

Pinned to the lower end of each of the shaft portions 558 of the valves 552 by a taper pin 518 is a collar 512 provided with four horizontal projections or lugs 514 extending radially from the lower portion thereof, the lugs being located ninety degrees apart around the collar so that it will appear cross-shaped in plan view. These cross-shaped collars 5T2 provide means in conjunction with which other means cooperateto rotate the valves 552. Before describing the construction and operation of the means for rotating the valves, however, it will be proper at this point to complete the description of the pressure controlling unit in order to show how the desired pressure is secured and maintained in the rubber bags, and how the water is expelled from the bags and returned to the supply tank 486 at the base of the machine.

As stated, liquid is pumped through the inlet pipe 5l4 into the pressure chamber 528 in the casting 506. The check valve 522 permits liquid to enter the chamber so long as the pressure of the liquid in the inlet pipe SM is sufficient to overcome the tension of the light spring 524. When the pump stops, the check valve 522 closes the inlet pipe 514 and prevents the liquid from returning to the pump. While the machine is operating all of the valves 552 which control the admission of liquid into the rubber bags, except the valve for the pad box which is being moved into the operating station, are open, that is, are in a position in which the upper passages 538 are open. The liquid passes from the chamber 528 through the upper passages 538 into the chamber 532. The check valves 534 which cover the passages 538 prevent the liquid from returning to the pressure chamber after once it has entered the circular chamber 532. From the chamber 532 the liquid passes through the vertical openings 544 into the horizontal passages 548. Since the inner ends of these passages, leading to the circular chamber 548 (which is the discharge chamber) are closed, the liquid must pass from the passages 546, through the pipes 549, 488, into the rubber bags 388. It will be seen that whatever pressure is created in the pressure chamber 528 will also be created in each of the six rubber bags 388 the valves of which are open during the operation of the pump 482. Moreover, if the pressure should be lowered in any of these bags through leakage or otherwise, the pressure is restored to the required amount each time the pump is operated.

The inlet passage 538, which controls the admission of liquid into the rubber bag 388 of the pad box that is being moved into the operating station, is closed, as will hereinafter be described, after the pad box has started to travel toward the operating station and, as the valve 552 is rotated to close this inlet passage, the lower or discharge passage 548 is opened. After the discharge passage 546 has been opened the liquid in the rubber bag is permitted to flow out of the bag into the discharge chamber 548, thereby releasing the shoe and sole as the plunger 418 is elevated by the grasshopper springs 426, 428

to raise the bail 634 away from engagement with the last and shoe.

A discharge pipe 516 extends from the bottom of the chamber 548 downwardly through the hollow sleeve 24 into the supply tank 488, the upper end of the pipe being threaded into the lower wall of the casting 5l6 in the same manner as the inlet pipe 5 I4. The liquid discharged from each rubber bag at the operating station; is thus returned from the discharge chamber 548 to the supply tank at the base of the machine. A plug 518 is threaded into an opening at the bottom of the discharge chamber 548 to permit access to the chamber in case any of the passages become plugged up.

In order to insure that a predetermined pressure will be created in the pressure chamber 528 there is provided an adjustable pressure control valve constructed and arranged to retain the liquid in the chamber 528 until the pressure reaches a predetermined amount and then to operate automatically to exhaust the surplus into a relief chamber. The control valve comprises a stem. 588 having an enlarged head 582 the upper portion of which is frusto-conical in shape and is normally held against a valve seat formed at the lower end of a circular passage 584 which connects the pressure chamber 528 to a relief chamber 588, formed in the inner portion of the casting 5l6 that is located within the circular discharge chamber 548. A part of the valve stem 588 is threaded and above the threaded portion the stem is reduced in-size and enters a vertical bore formed in the lower portion of a valve adjusting member 588. An adjusting nut 598 is mounted on the threaded portion of the valve stem 588, this nut having two slots 592 which are diametrically opposite and into which enter two downwardly projecting pins 594 formed on the lower end of the valve adjusting member 588. Interposed between the nut 598 and a washer 598 encircling the valve stem 588 and resting against the bottom side of the pressure chamber 528, is a compression spring 598 which urges the valve upwardly to keep the conical portion pressed firmly against the valve seat at the lower end of the opening 584. The washer 598 is provided with a series of holes to permit liquid to pass from the pressure chamber into the relief chamber when the pressure control valve is open. The valve adjusting member 588 is rotatably mounted in a holder 688 threaded into a large opening formed in the casting H8 at the top of the pressure chamber 528, the upper portion of the holder being reduced in size and threaded to receive a confining nut 682. A part of the holder 688 which surrounds the adjusting member 588 is cut away and in the opening thus formed is inserted a piece of packing to prevent leakage from the chamber 528, the packing being held in position by the confining nut 882. Pinned to the upper end of the adjusting member 588 is a handle 684 and a spring 688, interposed between the handle and the confining nut 882, holds the adjusting member 588 in its uppermost position with the enlarged portion at its lower end bearing against the top of a recess 688 in the lower end of the holder 688.

When it is desired to increase the pressure of the liquid in the pressure chamber 528 the operator turns the handle 884 to lower the adjusting nut 598 and increase the tension of the comoression spring 598, thereby causing the spring to press the valve more firmly against its seat at the lower end of the passage 584. When the pressure in the chamber becomes suflicient to overcome the force of the spring 598, the pressure control valve opens to permit the liquid to exhaust into the relief chamber 588. A pipe 6l8, the upper end of which connects with a curved passage 6l2 opening into the relief chamber 586, extends downwardly through the hollow sleeve 24 and provides means whereby the liquid expelled from the pressure chamber 528 may be returned

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