US1101750A - Machine for folding shoe-uppers. - Google Patents

Description

C. S. MARSHALL.

MACHINE FOR FOLDING SHOE UPPERS.

APPLICATION FILED MAY 6, 1899. RENEWED FEB. 21, 1914.

1, 1 0 1,750, Patented June 30, 1914.

7 SHEBTSSHEET 1.

mtzwsses: Invenior:

mafia} M Charles S Marshall,

COLUMBIA PLANOGRAPH 420., WASHINGTON, u c,

C. S. MARSHALL.

MACHINE FOB. FOLDING SHOE UPPERS.

APPLICATION FILED MAY 6, 1899. RENEWED FEB. a, 1914.

1, 1 01,750, Patented June 30, 1914.

7 SHEETS-SHEET 2.

'L 3O 72 O X 1 O 1 I 2/4 I L O 26 1' :2

m'bwsses: Inventor:

Zz IQZZJL@J M Charla; SJldZzrs v COLUMBIA FLANOGRAPH CO..\VASHIN6TO D c.

G. S! MARSHALL.

MACHINE FOR FOLDING SHOE UPPERS.

APPLICATION FILED MAY 6, 1899. RENEWED FEB. a, 1914.

1,101,750. Patented June 30,1914.

7 SHEETS-SHEET 3.

Witmsses: I Inventor:

' Charles Sjmgkfhall,

COLUMBIA FLANOGRAPH COHWASHINGTON D. c.

O. S. MARSHALL.

MACHINE FOR FOLDING SHOE UPPERS.

APPLICATION FILED MAY 6, 1899. RENEWED FEB. a, 1914.

Patented June 30, 191% 7 sinus-SHEET 4.

Witnesses: v mm 6. 0661mm 7%. gal M COLUMBIA PLANDIJRAPH co.,wAsH|Nu-Eor4, n. 6,

G. S. MARSHALL.

MACHINE FOR FOLDING SHOE UPPERS.

APPLICATION FILED MAY 6, 1899. RENEWED FEB. s, 1914.

1,101,750. Patented June 30,1914.

7 SHEETSSHEET 5.

T litnesses: liwenior: zugw f g charms/mmhau,

0. S. MARSHALL.

MACHINE FOR FOLDING SHOE UPPERS.

APPLICATION FILED MAY 6, 1899. RENEWED FEB. 3, 1914. 1,101,750, Patented June 30,1914

7 SHEETSSHEET 6.

,Lwewtor: Charles SJl hrshau,

COLUMBIA PLANOGRAPH C0,..wAsmNGTON, D. c.

G. S. MARSHALL. MACHINE FOR FOLDING SHOE UPPERS. APPLICATION FILED MAY 6, 1399. RENEWED FEB. 3. 1914.

1,101,750. Patented June 30,1914; 7 SHEETS-SHEET 7.

wlbacss'es: Inventor:

% Cbarkslmrslmll, W 17W) M COLUMBIA PLANOORAPH co., wAsmy a'roN. D. c.

eNrrED sTATEs PATENT OFFICE.

CHARLES s. MARSHALL, or BRoCKToN, MASSACHUSETTS, AssreNon, BY MESNE' ASSIGNMENTS, 'ro BOSTON MACHINE WORKS COMPANY, or LYNN, MASSACHU- SETTS, A CORPORATION or MASSACHUSETTS.

MACHINE FOR FOLDING SHOE-UPPERS.

Application filed May 6, 1899, Serial No. 715,792. Renewed February 3, 1914.

T 0 all whom it may concern.

Be it known that I, CHARLES S. MARSHALL, a citizen of the United States, residing at Brockton, in the county of Plymouth and State of Massachusetts, have invented a new and useful Machine for Folding Shoe-Up pers, of which the following is a specification.

My invention relates to a machine for folding back upon itself the irregular or curved edge of a sheet of material, such as is employed for boot or shoe uppers.

The especial object of my present invention is to simplify and improve the form of folding machine illustrated in United States Letters Patent for a machine for folding shoe uppers, No. 750,872, granted to me Feb. 2, 190i.

To this end my invention consists of the parts and combinations of parts as hereinafter described and more particularly pointed out in the claims at the end of this specification.

In the accompanying seven sheets of drawin gs, F iglure 1 is a longitudinal sectional View of a folding machine constructed according to my invention, Fig. 2is a partial side view thereof, Fig. 3 is a partial front view thereof, Fig. at is a partial plan view thereof, Figs. 5, 6 and 7 are respectively a detail plan view, a detail sectional view, and a detail perspective view, illustrating connections which I preferably employ for unlocking and withdrawing the creasing-plate from between the sections of folded material before pressure is applied to the fold. Fig. 8 is an enlarged detail view of the cam and its connections which operate the slitting knives, and perform certain other functions as hereinafter explained, Fig. 9 is an enlarged detail view showing one of the knives raised to pin a fold of the material and hold the same while the creasing-plate is being withdrawn, Fig. 9 is a detail View showing the manner in which one of the knives is fastened in place, Figs. 10 to 16 inclusive are fragmentary detail views showing parts of the machine in different relative positions to illustrate the operation thereof, Fig. 17 is a detail view of the cam-shaft, Fig. 18 is a detail View illustrating the connections for operating the finger-carriage, and Fig. 19 is a de- Specification of Letters Patent. V Patented June 3(), 1914.

Serial No. 816,336.

tail View of the cam and connections for raising the work-table.

One of the especial objects which I accomplish by means of this present invention is to provide a folding machine in which the work may be readily and accurately set to gage, and may then be carried back into position to be acted upon by the folding instrumentalities. To this end a folding machlne constructed according to this invention comprises a gage, a work-table upon which the sheet of material to be folded may be positioned, a clamp for holding the material in its properly gaged position, and connections for then moving the work-table and its clamp back to present the edge of the material to the slitting knives or other instrumentalities employed in the folding operation.

The gage which I employ preferably occupies a fixed position in the machine with re spect to the slitting knives or other instrumentalities, and in order to clear the gage, the work-table is first slightly elevated or raised before the same is moved back, and the connections which I employ for this purpose have been especially designed to produce an easy and quick act-ion which cannot by any possibility change the relation of the work with respect to the creasing-plate when the same is held down thereon by the clamp. It is to be noted, that as the worlegage may be set in a machine constructed according to my present invention to occupy a fixed position with respect to the fingers, that the rear edge of the work-gage may serve as a stopplate against which the fingers may be set, and that difierent widths of fold may be secured by simply substituting difierent widths of gages.

The folding operation of a machine constructed according to my present invention may be substantially the Same as in the machine of my prior patent before referred to; that is to say: The edge of the material is first slitted by the knives which are mounted in the adjustable fingers, the work-table is then raised to bend the edge of the material down at right-angles to the body portion thereof, the finger-carriage in then advanced to fold the edge of the material back under the creasing-plate, the creasing-plate is then complish this purpose, I preferably notch or form slits in the edge of the creasingplate, and I provide each of the fingers with a pin preferably actuated by a slight vertical movement of the slitting knife mounted in said finger, so that said pins may be forced up through the notches in the creasing-plate to engage the folded material, and bite or pin the same positively in place while the creasing-plate is being withdrawn. In addition to these improvements, 1 have improved and simplified the operating connections for certain parts of the machine, and have provided an improved locking attachment for locking the creasing-plate and work-table together prior to the time when the creasing-plate is to be withdrawn.

Referring to the accompanying drawings and in detail, 1 have illustrated a single folding machine, but it is to be understood that the folding machines of my invention are preferably arranged in couples, so that the folding operations may be taking place in one machine, while a completed fold is being set or pressed in the other machine.

In describing the relative motion of the parts, an operator standing in position to operate the treadle is regarded as being at the front side of the machine and a motion to ward the operator is considered a forward motion, while parts moving in the opposite direction are regarded as having a backward motion.

As shown most clearly in Fig. 1 my folding machine, as herein illustrated, comprises a frame-work A. Mounted to slide on the frame-work A is a reciprocating finger-carriage B carrying a steam chamber C, onto which a plurality of independently adjustable fingers F may be clamped by means of the clamping-bar D and hand-wheels E. Also mounted in the finger-carriage B is a work-gage Gr. Heat from the steam-chamber C is transmitted through the fingers F, and this heat serves to set the fold so that the same will be more permanent. The fingers F may be set up to the rear edge of the gage G, and the work may be positioned on the work-table by meansof the front edge of the gage G as hereafter explained, different widths of gages G being employed when it is desired to produce different widths of folds. Mounted on ways at the front of the frame A as shown in Fig. 4 is a vertically movable apron J, and carried by the apron J is a movable work-table L, a creasing-plate P, and a clamp M for securing the work thereon. The work-table L, creasing-plate P and clamp M are operated or controlled by connections which are hereinafter described.

As most clearly illustrated in Fig. 17 the cam-shaft 11 is provided with a groovedcam 12 which operates the slitting-knives, pins the work in position, and applies pres sure to the completed fold, as hereafter explained, a cam 13 for raising the work-table, a cam 14 for actuating the finger-carriage, and a cam 15 for unlocking and retracting the creasing-plate. The slitting knives form short cuts extending back from the edge of the material to be folded. These cuts permit a smooth fold to be made when the edge of the material is curved.

The connections for producing the several successive operations in a folding machine constructed according to my invention may be arranged as follows :WVhen the parts of the machine are in their normal or inoperative position, a piece of leather or other sheet material may be first set up to the gage G, as illustrated in Fig. 10. The connections for clamping the work and carrying the same back into position to be acted upon by the folding instrumentalities, comprise a treadle 16 which is connected by a link 17 and spring-strap 18 to a rocker 19 secured on a rock-shaft 20. The rocker 19 is provided with a rearwardly extending belt receiving sector, over which passes the upper end of the spring strap 18. The link 17 is connected to an arm normally extending forward from the rocker 19. By means of this construction, when the treadle 16 is depressed, the tension put on the spring strap 18 will tend to turn the rock shaft in one direction, while the tension put on the link 17 will tend to turn the rock-shaft 20 in the opposite direction. But inasmuch as the link 17 forms a connection which cannot be stretched or expanded while the strap 18 is provided with a spring or expansi-ble section, the link 17 will turn the rock-shaft 20 against the tension of the spring strap 18. When the treadle is released, the spring section of the strap 18 will act to raise the treadle 16, and also to turn the rock-shaft 20 back to normal position.

As shown most clearly in Fig. 2, the rockshaft 20 is provided near its ends with rockarms 21, which engage with and actuate small levers 22 pivoted in the lower ends of the apron J. The small levers 22 areconnected by links 23 and the laterally projecting spring-arms 230 shown in Fig. 3 with the normally raised spring-clamp VI. When the treadle 16 is pushed down', the small levers 22 will be actuated, and will first pull down the clamp M to secure the work in place, as illustrated in Fig. 11. The continuance of the motion of the small levers 22 will bring said levers into engagement with fulcrum-pieces 2 1 on the frame, so that said small levers 22 will then act to raise the apron J, and carry the work up to a higher level than the top of the gage G, as illustrated in Fig. 12. The spring-arms 230 permit a continued motion of the levers 22 without breaking the connections with the clamp M.

The connections for carrying the work back in position to be acted upon by the folding instrumentalities, as shown in Fig. 1, comprise a link 73 which has alost motion connection at its lower end with the treadle 16, and is connected at its upper end to a toggle-joint formed by levers 25 and 26. The toggle-joint formed by the levers 25 and 26 is normally broken, or the links kept out of line with each other by a spring 27. At itsfront end, the link 26 is connected to an arm 7 2 extending down from a rock shaft 28. The rock-shaft 28 is provided with arms 29, which arms 29 have lost mo tion connections with arms 30 loosely mounted on the rock-shaft 28.

As shown most clearly in Fig. 2, each of the arms 29 is provided on its outer face with lugs, threaded through which are small contact screws or set screws, while each of the arms 30 is provided with a lug extending from its inner face between said contact or set screws. By means of this construction, the contact or set screws can be set or adjusted to secure any desired amount of lost motion between the arms 29 and the arms 30, so as to allow time for the arms 29 to unlock the fastening devices, and to thereafter operate the arms 30 to retract the creasing-plate without retracting the work-table, as hereinafter described. The upper ends of the arms 30 engage sockets or notches in the movable blocks 31, which blocks 31 are arranged to engage behind and advance the work-table. The blocks 31 are provided with upwardly extending pins 53 for receiving the creasing-plate, and the lost motion connections between the arms 29 and 30 are provided for the purpose of unlocking certain spring catches, so that the blocks 31 and the creasing-plate can be thereafter withdrawn, as will be hereinafter explained. By means of these connections after the work has been lifted above the level of the gage G, the same will be carried backward as illustrated in Fig. 13, and presented in proper position to be acted upon by the slitting-knives K of the fingers F, the construction of said knives K being hereinafter described.

As illustrated most clearly in Fig. 8, the grooved-cam 12 operates aroller 32 journaled on an arm 33 extending from. a rockshaft 34. The rock-shaft 34 is provided with arms 36, which arms 36 are connected to actuate a transversely slitted-plate I which receives the lower ends of the knives K.

As shown most clearly in Figs. 8 and 9,

'the fingers F are each provided with a revcess or groove for receiving the upper end of a knife K, while each of the knives K is provided with means for detachably securing, the same in the slotted plate I.

To secure a detachable connection between each of the knives K and the slotted plate I, I provide the-shank of each knife K with :shank. and stand at a slight angle thereto, thus forming a spring-catch, which in connection with a small cross-pin or stop will serve to lock each knife to the slotted-plate I when the same is pushed up through one 'of the slots of the plate I, to the position illustrated in Figs. 8 and 9. The plate I is rigidly connected at its ends to vertical rods 0, arranged to move up and'down in bearings in the frame-work of the machine.

\Vhen the cam 12 as illustrated in Fig. 8 is rotated, the section 35 thereof will depress the knives K to slit the edge of the work transversely.

IVhen the work has been ;slitted, the work-table is lifted, so that as ithe edge of the work is moved up past the ends of the fingers F, the same will be bent down at right angles, as illustrated in iFig. 14.

The connections for raising the work- Ftable are most clearly illustrated in Fig. 19.

As shown in this figure, the cam 13 on the cam-shaft 11 is arranged to engage with, and actuate a roller 37 carried by an arm 38 ex- .tending down from a rock-shaft 39.

The rock-shaft 39 is provided with arms 40 connected to the apron J at the front of the machine, as most clearly illustrated in Fig. 2. The roller 37 bearing on the cam 13 does not interfere with the lifting of the apron J by the foot controlled connections operating the levers 22.

When the work has been raised up above the level of the fingers F, the finger-carriage is then advanced toward the front of the imachine to fold under the edge of the material, as illustrated in Fig. 15.

The connections for operating the finger-carriage are most clearly illustrated in Fig. 18. As

@shown in this figure, the cam-shaft 11 is pro- %vided with a grooved-cam 14, which en- ;gages with, and operates a roller 41 jourinaled on an arm 42 extending up from a irock-shaft 43. Also extending up from the .rock-shaft 43 is an arm 44 which is connected by a link to operate the finger-car- J riage.

Now before retracting or withdrawing the creasing-plate from between the fold of material which has thus been formed, it is desirable that the fold should be pinned or .withdrawal of the creasing-plate.

bit so that it will not be distorted by the To ac- &

complish this purpose, each of the adjustable fingers F is provided with a pin II, as shown in Figs. 8 and 9. The pins II are bent from spring-wire, so that they will normally remain down out of operative position below the upper surface of the fingers F. To raise the pins up into engagement with the fold which has thus been formed, the cam 12 is provided with an operating or inwardly extending section 45 which acts to raise the plate I to the position shown in Fig. 9 forcing up the pins II as shown.

As shown most clearly in Fig. 5, the sliding blocks 31 are provided with pins 54C which engage behind the ends of spring locking-pieces 51, which locking pieces are mounted on a shaft in the apron J. Before the creasing-plate can be retracted, it is es sential that the spring locking-pieces 51 should be depressed down out of the way. To accomplish this purpose, the spring locking-pieces 51 are provided with tail-pieces 52 which rest upon the upper ends of the levers 29, as shown most clearly in Figs. 1 and 2. The upper ends of the arms 29 are made in the shape of cams, and the lost motion connection between the arms 29 and 30 will permit the locking-pieces 51 to be moved down out of the way before the creasing-plate is withdrawn.

The connections for withdrawing the creasing-plate are most clearly illustrated in Fig. 1. As shown in this figure, the camshaft 11 is provided with a grooved'cam 15 1 which engages and actuates a roller 16 car'- ried on an arm 4;? extending from the rockshaft 48. Extending down from the rock shaft 48 is an arm 19, and while the togglelinks 25 and 26 are held in line with each other by the depression of the treadle 16, motion from the arm 49 will be transmitted to the rock-shaft 28, and through the lost motion connections referred to between the arms 29 and 30, the locking-pieces 51 will first be depressed, and the creasing-plate then retracted, as illustrated in Fig. 16. To apply pressure to a fold which has been completed in this manner, the rods O are provided at their upper ends with springs Q which are confined between hand wheels R and the cross-bar N, which cross-bar N is normally supported by collars on the rods 0.

V'Vhen the grooved-cam 12, illustrated in Fig. 8, is turned so as to bring its section 55 into operative engagement with the roller 32, the operating-plate I, which, as before stated is connected to the rods 0, will again be depressed, and as the cross-bar N moves down it will engage the clamp M which has been moved back thereunder, and will apply a heavy spring pressure to the completed fold, as shown in Fig. 16. The length of time during which pressure may be applied to crease the fold according to the character or thickness of the material being operated 'upon, may be varied by shutting off the power from the machine by any of the ordinary connections. By again starting the machine in action, the pressure will be re- 7 lieved, and the work-table may be moved toward the front of the machine by hand, in position, so that another piece of material may be placedto gage thereon, and the operation repeated.

Considering now the action of the difierent mechanisms as a whole, in the use, of a folding machine constructed according to this invention, the work is first set to gage as illustrated in Fig. 10. As soon as the machine is started the clamp M will bedrawn down to clamp the work in place, as shown in Fig. 11. The work-plate will next be raised, as shown in Fig. 12, after which the work will be carried forward in position to be engaged by the slitting knives, as shown in Fig. 13. The slitting knives make short cuts extending back from the edge of the.

material, so that a smooth fold may be made on a curved edge, and the work-table is then raised so that the edge of the material is carried up past the ends of the adjustable fingers, as shown in Fig. 14. The finger carriage then moves forward, folding under the edge of the material, as shown in Fig. 15. While the parts are in this position, the pins are pushed up into the material being folded to hold the edge thereof, while the creasing plate is then withdrawn and 2.. heavy pressure is applied to the completed fold, as shown in Fig. 16. When the pres-- sure is relieved the completed work will be taken out and the parts restored to position shown in Fig. 10 to repeat this cycle of op eration.

In this application for patent, I do not desire to claim broadly those features of the machine which I have herein illustrated, whereby a fold of material is formed over the edge of a creasing-plate, which creasingplate is afterward withdrawn, nor do I desire to claim broadly the use of a plurality of independently adjustable fingers having movable knives mounted therein for slitting the edge of the material to be folded, as these features are claimed in my prior patent before referred to.

I am aware that many changes may be made in the construction of my folding ma chine by those who are skilled in the art, without departing from the scope of my invention as expressed in the claims, and that certain features of my invention are appliable to other forms of mechanism than that herein described. I do not wish there fore to be limited to the special machine herein described and illustrated, but

What I do claim and desire to secure by Letters Patent of the United States is 1. In a machine for folding the edge of sheet material, the combination of a gage, a

Work-table, means for clamping a sheet of material thereon, folding instrumentalities, and connections for first raising the table so that the Work will clear the gage, and for then moving the table back to present the Work in position to be acted upon by the folding instrumentalities, substantially as described.

2. In a machine for folding the edge of sheet material, the combination of a plurality of independently adjustable fingers, a work-table, and a gage interposed between the work-table and fingers so that the fingers may be adjusted to the rear edge of the gage, and the Work adjusted to the front edge of the gage, substantially as described.

3. In a machine for folding the edge of sheet material, the combination of a plurality of independently adjustable fingers, a Work-table, means for clamping the Work on the work-table, and means for moving the W01l t2tbl8 back to present the Work in proper position to be acted upon by said fingers, substantially as described.

4. In a machine for folding the edge of sheet material, the combination of a plurality of independently adjustable fingers, a gage, a Work-table, means for clamping the work on the Work-table, and connections for first raising the table, so that the Work Will clear the gage, and for then moving the table back to present the Work in position to be acted upon by the fingers, substantially as desired.

5. In a machine for folding the edge of sheet material, the combination of a gage G, a Work table, a clamp M, fulcrum pieces 24 on the frame of the machine, levers 22, and links 23 arranged to actuate the clamp M, the levers being arranged to engage the fulcrum pieces 24 to raise the Work table after the actuation of the clamp M by the links 23, substantially as described.

6. In a machine for folding the edge of sheet material, the combination of a gage G, a Work table, a clamp M, fulcrum pieces 24, levers 22, links 23 arranged to actuate the clamp M, the levers being arranged to engage the fulcrum pieces 24t to raise the Work table after the actuation of the clamp M by the links 23, substantially as described, a rock shaft 20 having arms 21 engaging the levers 22, and a treadle 16 actuating the rock-shaft 20.

7. In a machine for folding the edge of sheet material, the combination of folding instrumentalities, a gage, a Work-table, means for clamping the Work thereon, means for raising the Work up above the level of the gage, and toggle-levers for moving the Work-table back to bring the Work into proper position to be acted upon by the folding instrumentalities, substantially as described.

8. In a machine for folding the edge of sheet material, the combination of folding instrumentalities, a gage, a Work-table, means for clamping the Work thereon, a treadle, and means for raising the Worktable to bring the Work above the gage, toggle-levers for carrying the work-table back to present the Work in proper position to be acted upon by the folding instrumentalities, and a lost motion connection between the treadle and said toggle-levers, substantially as described.

9. In a machine for folding the edge of sheet material, the combination of folding instrumentalities, a gage G, a Work-table L, a spring clamp M, fulcrum pieces 2%, levers 22, links 23 arranged to actuate the spring clamp M,the levers being arranged to engage the fulcrum pieces 24: to raise the Work table after the actuation of the clamp M by the links 23, a treadle actuating the levers 22, toggle levers 25 and 26 moving the Work-table back to present the Work in position to be acted upon by the folding instrumentalities, and a lost motion connection between the treadle and the toggle levers 25 and 26, substantially as described.

10. In a machine for folding the edge of sheet material, thecombination of folding instrumentalities, a Work-table, a creasingplate, blocks for moving back the Worktable and creasing-plate so as to present the Work in position to be acted upon by the folding instrumentalities, a pair of togglelevers arranged to actuate the blocks, and a cam for acting through said toggle-levers to retract the creasing-plate, substantially as described.

11. In a machine for folding the edge of sheet material, the combination of a Worktable, a creasing-plate, locks for normally locking the creasing-plate and Work-table together, and a lost motion connection, for first releasing the locks and then retracting the creasing-plate from the fold of the material, substantially as described.

12. In a machine for folding the edge of sheet material, the combination of a Worktable L, a creasing-plate P, bloc s 31 carrying the creasing-plate, spring locking-pieces 51 for normally locking the creasing-plate and Work-table together, operating levers 30, and arms 29 having a lost motion connection with the levers 30, and cam-shaped ends for first depressing the locking-pieces 51, the parts being so constructed and arranged that the creasing plate P is retracted after such action, substantially as described.

13. In a machine for folding the edge of sheet material, the combination of a movable creasing-plate having a notched or slitted edge, means for forming a fold of sheet material on the creasing-plate, a plurality of pins projecting into the notches of the creasing-plate, and means for actuating the pins to engage the folded material and hold the same in place while the creasingplate is being withdrawn from the fold, substantially as described.

14. In a machine for folding the edge of sheet material, the combination of a movable creasing-plate having a notched or slitted edge, and a plurality of independently adjustable fingers cooperating with the creasing-plate to form a folded edge of sheet material thereon, said fingers being provided with pins for engaging the folded material and holding the same while the creasingplate is being Withdrawn, substantially as described.

15. An adjustable finger for machines for folding the edge of sheet material, said finger having a slitting-knife movably mounted in its body portion, and a pin also mounted in the body portion of the finger for engaging and holding the work when the same has been folded, substantially as described.

16. In a machine for folding the edge of sheet material, the combination of a creasing-plate having a notched or slitted edge, and a plurality of fingers cooperating with the creasingplate to fold the edge of sheet material thereover, each of said fingers being provided with a movable slitting-knife, and with a normally spring-retracted pin arranged to project through a notch of the creasing-plate and be operated by its slitting-knife to engage the folded material while the creasing-plate is being Withdrawn, substantially as described.

17 A slitting and folding machine having, in combination, a table, a creasing plate arranged above the table, means for forming a plurality of slits in the edge of the work, a folder arranged to turn at one operation the entire slitted portion of said edge around and back on said creasing plate so that the distance between said turned slitted edge and the body of the work Will be equal only to the thickness of the creasing plate, means for withdrawing the creasing plate, and

means for bringing the turned edge and the body of the work together.

18. A slitting and folding machine having, in combination, a creasing plate, means for forming a plurality of slits in the edge of the work, a folder arranged to turn at one operation the slitted portion of said edge around said creasing plate, means for withdrawing the creasing plate, and means for bringing the turned edge and the body of the Work together, the parts being arranged to support the body of the Work back of the fold in the same plane as that portion of the body onto which the folded edge is pressed.

19. A slitting and folding machine having in combination, a table and a creasing plate, means for forming a plurality of slits in the edge of the work, a folder arranged to turn at one operation the entire slitted portion ofsaid edge around said creasing plate, means for withdrawing the creasing plate, and means for forcing the turned edge and the body of the work together and for holding the folded edge under pressure against the body'of the work, the parts being arranged to support the body of the work back of the fold in the same planeas that portion of the body onto which the folded edge is pressed during the pressing operation.

20. A slitting and folding machine having in combination, a creasing plate, means for forming a plurality of slits in the edge of the-work, a folder arranged to turn at one operation the slitted portion of said edge around said creasing plate, means for Wltlldrawing the creasing plate, means for bringing the turned edge and the body of the work together, and means for supporting the work back of and close up to the fold.

In testimony whereof I have hereunto set my hand, in the presence of two subscribing witnesses.

CHARLES S. MARSHALL. Witnesses:

ALBERT T. MARSHALL, ELMER H. FLETCHER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

Gorrection in Letters Patent No. 1,101,750.

It is hereby certified that in Letters Patent No. 1,101,750, granted June 30, 1914, upon the application of Charles S. Marshall, of Brockton, Massachusetts, for an improvement in Machines for Folding Shoe-Uppers, an error appears in the printed specification requiring correction as follows: Page 5, line 84, for the Word desired read described; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the case in the Patent Office.

Signed and sealed this 14th day of July, A. 1)., 1914.

[SEAL] J. T. NEWTON,

Acting Commissioner of Patents.

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