US869040A - Leather crimping and clamping machine. - Google Patents

Description

PATENTED OCT-22. 1907.

G. E. ALBRIGHT.

LEATHER ORIMPING AND GLAMPING MACHINE.

APPLIOATION FILED DEC. 5. 1903.

' 5 SHEETS-SHEET 1.

In: NORRIS psrcns co-, wAsumnran, n. c.

No.869-,040 I PATENTED 001221907.

' .G.E.AALBRIGHT.

LEATHER GRIMPING AND OLAMPING MAGHINE.

APPLIOATION FILED DBO. 5. 1903.

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PATENTED OCT. 22. 1907.

5 SHEETS-SHEET g.

[NVE 61 E 4% G. E. ALBRIGHT. LEATHER GRIMPING AND GLAMPING MACHINE.

APPLICATION FILED DBO. 5. 1903.

. WITNESSES: V

No. 869,040. PATENTED 00122. 1907-.

'0. E. ALBRIGHT.A LEATHER GRIMPING AND GLAMPING MACHINE.

APPLICATION I'ILEI) DEC. 5. 1903.

5 SHEETS-SHEET 5 THE NORRIS PETERS co., wAsHmaruu, n c

onrrnn s'ra'rns CHESTER E. ALBRIGHT, OF LEWISBURG, PENNSYLVANIA.

LEATHER CRIMPING AND CLAMPING MACHINE.

Application filed December 5 To all whom it may concern:

Be it known that I, Orins'rnn E. ALBRIGHT, a citizen of the United States, residing at Lewisburg, in the county of Union and State of Pennsylvania, have invented certain new and useful Improvements in Leather Crimping and Clamping Machines; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it anpertains to make and use the same.

My invention relates to crimping and clamping machines, and particularly to machines adapted to crimp and form leather or other pliable fabric into pocketbook blanks, the object of my invention being to provide a peculiarly simple and effective mechanism for such purposes.

In the accompanying drawings: Figure l. is a front elevation of a machine provided with my improvements; Fig. 2 is a side elevation of the machine; Fig. 3 is a plan view thereof; Fig. 4 is a transverse vertical secti on through the central part of the table taken as on the line 4-4 of Fig. 3, and showing the form and crimping mechanism in section, and the bed-plate in full lines; Fig. 5- is a plan view on an enlarged scale showing the parts assembled as in Fig, 4; Fig. 6 is a vertical section similar to that shown in Fig. 4, but showing the crimper slides thrust into operative position; Fig. 7 is a sectional detail taken as on the line 77 of Fig. 3; Fig. 8 is a perspective view of the frame in which the form is held while in position as a part of the machine; Fig. 9 is an edge elevation of a piece of plastic material such as my machine operates upon; Fig 10 is a similar elevation showing the material after my machine has operated upon it; Fig. 11 is a plan view of the blank shown in Fig. 10; Fig. 12 is a perspective view of the form, clamping plate and appliances; Fig. 13 is a detached perspec tive view of the locking bar shown in Fig. 12; Fig. 14 is a detached perspective view of the clamping plate shown in Fig. 12; Fig. 15 is a detached perspective view of the union plate, by means of which the form and clamping plate are attached to the machine; Fig. 16 is a detached perspective view of the form-body; Fig. 17 is a perspective view illustrating the stopping and alining devices regulating the movement of the yielding bedplate; and Fig. 18 is a detail of a modification of the snap fastening device for holding the form. Fig. 19 is a longitudinal section of one of the filling wedges.

The machine comprises essentially a frame, a table with an opening in which lies a yielding bed-plate, a sectional and detachable form, a form-holding mechanism held above the table and reciprocating to and from the yielding bed-plate, a crimping mechanism for driving in the material upon the form, a clamping mechanism operating upon the form, means for operating the form-holding mechanism and means for regulating the action of the yielding bed-plate. In operation it is in- Specifieation of Letters Patent.

,1903. Serial No. 183,888.

Patented Oct. 22, 1907.

tended that the form shall be put upon the form-holding mechanism, which is then dropped to the table until it rests upon and depresses the yielding bed, the material being carried down, then forced in about the form, and then clamped thereto, the parts returning to their normal position, the fornr removed, and a fresh one substituted.

A indicates the frame of the machine.

B is a table supported by the frame having a rectangular opening B adapted to receive the yielding bedplate and form. The table has slots 11-, see Figs. 3 and 7, which, as hereinafter defined, form guide-ways. Beneath the table are ears B which serve as pivot bean ings.

G, O are rods extending and reciprocating through openings in the table B and carrying at their upper ends a form-holding frame or head 0. The lower ends of the rods 0 are connected by a cross bar 0 joined at the center upon a sleeve 0 On opposite sides of the sleeve 0 are trunnion studs 0* which form bearings for a lever (J embracing the sleeve, pivoted at O to the frame of the machine and having a latch G adapted to engage any notch C in a locking segment C D is a vertical shaft passing through the sleeve C and carrying at its upper end a yielding bed-plate D which is attached to the shaft by a boss D. To the lower end of the shaft D is secured a hub D with outwardly extending arms D The outer ends of these arms are secured to springs H attached at the opposite ends to cross-bars A of the frame.

E is a collar adjustably secured on the shaft D, as here shown, by means of a set-screw e. his collar is so placed that it regulates or limits the upward movement of the shaft D and yielding bed-plate D by abutting against cross-bars A.

F is a similar collar secured to the shaft D above the cross-bars A by means of set-screws f i These setscrews serve as bearings for the forked ends G of arm G. The outer end of the arm G passes through a bar a, secured to one side of the frame. The function of the arm G and the connected parts is to prevent any turning movement of the shaft D, the collar F limiting the downward movement of the shaft and the yielding bed-plate. It will be apparent that the bedplate D may yield under the pressure of the form in the form-holding mechanism, and be returned, when released from that pressure, by the action of the springs H, that the extent of movement to correspond with the form used may be exactly regulated by the collars E and F, and that the shaft and bed-plate will be steadied and directed in the right line, by the controlling arm and collar G, G.

I are segmental gears pivotally supported by the ears B and formed on the end of lever arms I and operated through these lever arms by means of rods 1, to drive in the crirnper slides as hereinafter deedges thereof.

scribed. "he rods I are connected at their lower ends to arms I extending from a sleeve 1' which embraces and plays upon a shaft D. On opposite sides of the sleeve 1* are trunnion bearings 1 which carry a treadle lover I pivoted at I to the frame of the machine and-l aying its treadle at I.

.T are springs secured at their upper ends to the crossbars A, and at their lower ends to the trunnion bearings I, the function of the springs being to hold the treadle lever and the connected parts normally in the position shown in Figs. 1 and 2.

The reciprocating head 0 is formed with tubular bearings K, inner tubular bearings L, and a central tubular bearing M.

N is an open rectangular tension frame or plate. Extending from the middle of its longer sides are cars N, while its shorter sides bear rods i 'hich pass through the bearings K and have secured upon them adjustable sleeves N N N are pressure springs placed between the bearings K and the frame N, and, as is apparent, the adjustable collars N permit the tension frame to be precisely set to accommodate any thickness of leather or other material to be formed.

0 are shafts passing through the bearings L, and having at their lower ends nut wrenches O and at their upper ends hand wheels 0 P is a downwardly extending lug which passes through the bearing M and to which are pivoted at P hooked gripping levers P normally pressed together by the action of springs P", P. In Fig. 18, Opposite Fig. 1, I have illustrated a modification or improvement of this form, in which P indicates a disk having an operating arm P and two oppositely and eccentrically located pins P, and P indicates two resilient or spring hooks, secured to a bar P which may be carried by the bearing M. The disk P may be adjusted on its shaft by the arm P", to change the location of the pins P, and thereby the adjustment of the arms P.

Q, Q, as shown in Figs. 4, 5 and 6, are crimping plates which may be of any desired form for any article, and are here shown as of substantially L-form, the ends Q being tapered so that they will lie over each other and thereby make the combined crimping plates of even thickness in the lapped portions as well as in the unlapped portions. These plates are separate from the machine, and are put in position by the operator before the crimping and clamping operation and afterwards retained in the form which carries the crimped blank. The component parts of the form are shown in Figs. 4-6, 9]6. As herein shown it is composed of a body of two equal sections R with the other parts assembled in and about the body, so that the form may be readily broken up to facilitate the removal of the blank. The body is made with a raised and rolled rim, as indicated at R.

S is a union plate adapted to fit in the central cavity of the assembled form sections. It has perforations S and distance bars S. In the center of the plate S is a stud s lzayinginwardly cut detents S on opposite sides into which take the hooked arms P P to support the form.

T is a clamping plate formed with depending flanges T, and perforations T These flanges fit into the cavity of the form body R closely around the inner There is thus formed between the raised rim R and the depending flange T a space into which the leather or other material is to be forced in the crimping operation.

T is a central perforation through which passes the stud S As illustrated at T" the clamping plate extends outwardly over the rim of the form-body. (See Figs. 12. f and 6.) U are short arms secured to the section R and. as shown, for example in Figs. 4 and 5. they have heads sunk into the bottom of the section of the body of the form and bear at their tops nuts U V is a locking bar formed with oppositely directed slots V, V and a central perforation W, which takes over the stud S so that the slotted ends may be turned around to engage the bolt U and serve as abutmenls for the nuts U The segmental gears l engage inlegral or attached racks W of crimper slides W. which are alined and guided by blocks Pf secured to the top of the table B. The crimping slides W have at their inner ends angularly extending arms, W W (Figs. 3 and 5.)

X (Fig. 3) are wedge-plates. or filling plates. They are adjustable in and out, as shown, and are intended to ill in the space about the center of the top of the crimped blank. which at the corners is occupied by the crimped material, so that the clamp may take evenly over the whole blank.

Y indicates the blank ready to be formed and crimped Y represents the upper edge of the blank after being applied to the form. and especially the erimped portion. while Y represents the part which is drawn around the raised and rolled rim R in practice the two sections of the form-body are placed together. the plate S is put into the cavity, the clamping plate T is placed over the plate S. the perforations T being large enough to fit over the nuts U' and the bolts U. the perforations T passing over the stud S and finally the bar V is placed over the stud S and turned to the position shown in Fig. 12. When the parts are thus assembled they are held together constituting a form and yet are loosely held so that the crimping plates may readily be forced into the space between the rim It and the clamping plate T. until the material strikes the flange T. Four of the crimping plates Q. Q are placed in the Y-arms of the slides W and a blank of leather or other material is placed over the opening B and the yielding bedplaLc D The assembled form is now taken and placed in the opening of the tension frame N and pushed up so that its stud S snaps into place between the arms P or P in this position the form is firmly held by the form holding mechanism, but the clamping plate though suspended is left loose so that it can not interfere with the crimping. If tightened prematurely it would frequently tear the material. The operator new releases the pawl C permitting the lever C and the form-holding mechanism to drop so that the form rests upon and depresses the yielding bed-plate D. As the form goes down upon the bed-plate it carries with it the central part of the material. the sides being spread out under the tension frame and held just as if by the hand of the operator. and. as shown in Fig. 4, the material being bent up at the sides. When the form and the material are thus related the operator presses upon the troadle I and through the treadle lever I the sleeve 1, the

arms I and the rods 1 motion is communicated to the lever arms 1, partially rotating the segmental gears I which engage the raclts W and thus carry forward the slide W and the crimping plates Q, Q, lorcing them and the material between the rim of the form, the extending edge oi the clamping plate and against the flange T of the clamping plate. other material which is thus pressed in is thick enough when crimped to fill the spaceat each corner, but in the open space, as indicated in Fig. 5. between the end ol the arms oi the crimping plates the leather would not be unilormly pressed in were it not that the filling wedges X are applied to occupy this space. The hand wheels 0 are now manipulated causing the wrenches O in the end ol shafts O to turn the nuts U thus causing the tension plate and the detached crimpers to be securely clamped to the term. The treadle is now released, the springs J return the rods 1 and the connected parts carrying back the slides W, the lever arm C is liltcd and latched. carrying up with it the lorm-holding mechanism, the spring arms P or P are separated and the form removed and carried away for the subsequent operations the yielding bed-plate returning to its orignial position by the operation of the springs .ll substantially flush with the opening in the table.

The machine will readily manipulate, for example, a blank of leather intended to lorm the body of a coinpurse. The lorm will make a sack or receptacle in the blank, the tension plate will hold and press out the rim, and the crimping plate will force in the rim over the sack or receptacle making a frame flange which in the example illustrated in Fig. 11, of a rectangular coin-purse blank, will be molded or formed with a substantially flat base, a bulging side and an upper outturned flange with an intervening depression between the bulge over the flange, the flange being crimped or gathered at each corner.

Having lully described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a crimping and clamping machine, the combination of a detachable form and clamping plate, means for operatll the clamping plate, and means for suspending the form and clamping plate.

2. In a crimping and clamping machine, the combination ol a form and clamping plate, means for operating the clamping plate, and means for suspending the form in register with the clamping plate operating means.

1;. In a crimping and clamping machine, the combination of a. form and clamping plate, operating means for the clamping plate, means for suspending the form and clamplug plate, a yielding hedplate, and means for bringing the form and clamping plate to the bed-plate.

4. In a crimping and clamping machine, a detachable form in combination with a detachable clamping plate, clamping means for holding the plate loosely in position on the form, in combination with means for forcing the material between the form and the plate, means on the machine for moving the form and plate toward one another and separate means on the machine for fastening the clamping means to hold the plate and form locked when they are detached from the machine.

In a crimping and clamping machine, a detachable form bearing a clamping plate extending over the form, in combination with means for receiving and operating the form, detached crimper platcs,- means for forcing the crimper plates between the clamping plate and the form, and means for operating the clamping plate.

(I. In a crimping and clamping machine, a detachable form bearing a clamping plate, means for receiving and The leather or operating the form, detached crimper plates, means for forcing the crimper plates forward to carry them and the material between the clamping plate and the form, and means for clamping together the parts of the form, the crimper plates and the material.

7. In a crimping and clamping machine, the combination with a detachable form bearing a clamping plate, of means for receiving and reciprocating the form, a table, a yield ing bedplate moving through the table, detached or free crimper plates substantially rectangular and adapted to lie in the table at the corners of the form, means for moving forward the crimper plates, and means for clamping the parts of the form, the material and the crimping plates.

S. In a crimping and clamping mechanism, a table having an opening, a yielding; bed-plate lying in the opening, a detachable form, a reciprocating form-holding mechanism, detached or free crimping plates, means for moving the crimping plates on the table and into the form and means for locking the crimping plates in the form.

9. In a crimping and clamping machine, the combination of a form and clamping plate, free crimping plates, means for forcing the crimping plates between the clamping plate and the form, and means for securing the clamping plate, crimping plates and form together so that they may be re moved from the machinev 10. In a crimping and clamping machine, the combination of a form-holder, a detachable form comprising a clamping plate carried by the form, a yielding gripping device for holding the blank in the line of movement of the form, detached crimpers, and means for holding the crimpers clamped to the form when the form is removed from the machine.

11. In a crimping and clamping machine, the combina tion of a substantially rectangular form with means for crimping the corners and ends of the article or material being treated, and leaving' the intervening parts un crimped.

12. In a crimping and clamping machine, the combination with a rectangular detachable form, of a reciprocating form-holding mechanism, a table with a rectangular opening, a rectangular yielding bed-plate, substantially L- shaped crimper plates adapted to he applied at each corner, and reciprocating slides for moving the crimper plates in upon the form.

13. In a crimping and clamping machine, the combina tion of a form having an attaching hooked stud, a formholding mechanism comprising a snap spring fastening to receive the stud of the form, a yielding bed-plate, means for bringing the form-holding mechanism down to the bed plate, and means for forcing in the material upon the form.

14. In a crimping and clamping machine, the combina tion of a table having an opening, a bed-plate lying in the opening and supported by a shaft held by resilient means, stops regulating the extent of movement of the shaft, means for preventing the shaft from twisting in operation, and a reciprocating form-holding mechanism above the table.

15. In a crimping and clamping machine, the combina tion with a fornrholder comprising a yielding frame, a detachable form and means for suspending it within the frame so that there is a space between the rim of the frame and the rim of the form, a table having an opening to receive the form, a bed plate in the opening, crimper plates, and means for operating the form-holder and the crimping plates.

It In a crimping and clamping machine, a form com prising parts held together by bolts and nuts, and a formnolding mechanism comprising a frame to receive the form, and means on the form-holder for operating the nuts to hold the parts of the form clamped together.

17. In a crimping and clamping machine, a detachable form comprising arts held together by bolts and nuts and a form-holder comprising a catch to suspend the form and fixed wrenches having jaws which receive the nuts when the form is applied to the form holder.

18. In a crimping and clamping machine, the combination of a table, a series of corner slides, crimper plates op erated by the slides. a torm holdiug mechanism and oppr site fillin wedges between the opposite pairs of slides.

I). In a crimping and clamping machine, the combination of a reciprocating term-holding mechanism, a table, corner slides with Y-nrms. and separable 3111111)(21' plates adapted to lie within the Y'arms and overlap at the meet ing ends.

2H. In a machine for farming and crimping leather or other material. the combination at a term for depressing the body of a blank. means for applying a yielding pressure or tension to the projecting flange, detachable crimping means for forcing in the material between the pressure or tension means and the form. the crimping means being removable with the 1 mm. and a clamping device carried by the term tor securing the molded blank and crimping means to the term.

2i. In a machine Ifor forming and crimping leather or other material. he combination of a form-holding nl0(fh anism. a detachable form. a tension frame about the form, a bed-plate. means t'or operating the tornrholding mechanism and the tension frame in unison. crimping plates and a clamping plate, means for operating the crimping plates. means for operating the clamping plate, and separate means on the machine for locking the clamping plate to the term.

2". In a machine for forming and crimping leather or other material, the combination of a form-holding mechanism, a detachable form. a regulable sprin pressed ten sion plate substantially training the form, a lrame bearing a yielding bed-plate to receive the form and a fixed plate between the form and tension plate to receive the tension plate. crimping devices, and operating means.

In a crimping and clamping machine, a form having ara ed rim, a clamping plate extending over the rim of the form in combination with means for forcing the material between the clamping plate and the rim, and securing devices by which the form and the clamping plate may be locked together to clamp the material.

24. In a crimping and clamping machine. a form having a raised rim. a clamping plate extending over the rim, a depending flange Iitting against: the inner side of the rim, and clamping devices. in combination with means for i'orcing material between the rim and the clamping plate and against the Ilange of the clamping plate.

25. A form comprising a sectional body, each section carrying an upright bolt, a union plate carrying a central stud and fitting over the bolts, a clamping plate fitting ever the bolts and the stud, and means for holding the parts as assembled.

26. A form comprising a body with a raised rim, a clamping plate having guide-ribs playing Within the rim of the body, and securing means.

In testimony whereof I allix my signature, in presence of two Witnes. s.

CHESTER E. ALBRIGII'IT. Witnesses Axnnnw A. Iintsnn. .Ir.,

ANinmw A. Lats rm.

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