US699192A - Machine for folding cloth blanks. - Google Patents

Description

No. 699,!92. Patentd May 6, I902.

c. H. KNAPP. MACHINE FOR FOLDING CLOTH BLANKS.

7 (Application filed Jan. 17, 1902. (No Model.) 3 Sheets$heet l.

WIEES. v I HINVEINTORQ Patented May 6,1902.

c. H; KNAPP MACHINE FOR FOLDiNG GLOTH BLANKISJ (Application flle d Jam 17, 1902.)

3 Sheets8heet 2.

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Q n. c, rm: mums PETERS co. no'rouma, yvwlum'ou No. 699.!92. Patented May 6; I902.

v C H. KNAPP. MACHINE FOR FOLDING CLOTH BLANKS.

- (Application filed. Jan. 17, 1902.) I (No Model.) 3 Sheets$heat 3.

WITNESSES: INVENTOR W l g a g I ATTORNEYS;

RRIS PETERS co, FHOY0-LITHO., WASHINGTUN u. c

UNITED STATES PATENT. OFFICE.

CHARLES H. KNAPP, OF PATERSON, NEW JERSEY.

MACHINE FOR FCLDIN G CLOTH BLANKS.

SPECIFICATION forming part Of Letters Patent NO. 699,192, dated May 6, 1902. Application filed January 17, 1902. Serial No. 90,105- (NO mOdBL To all whom, it may concern.-

Be it known that I, CHARLES H. KNAPP, a citizen of the United States, residing in Paterson, in the county of Passaic and State of New Jersey, have invented certain new and useful Improvements in Machines for Folding Wristbands; and I do hereby declare the fol: lowing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters andfigures of reference marked thereon, which form a part of this specification.

This invention relates to machines for folding collars, cuffs, wristbands, and other similar articles; and. it consists in an improved construction of the machine of this nature patented to me by United States Letters Pattent No. 668,920, February 26, 1901.

My improved machine is designed principally for folding wristbands having rounded corners, but may be used for folding other articles, such as those above mentioned, of substantially similar shape without altering the construction or general principles of operation materially.

Theinvention will be found fully illustrated in the accompanying drawings, wherein Figure 1 is a side view of my improved machine. Fig. 2 is a top plan view thereof, slightly enlarged. Fig. 3 is a view in front elevation of the die. Fig. 4 is a top plan view of the die proper't'. e., of the die with its operating mechanism removed. Fig. 5 is a top plan view of said die proper contracted, with the sliding plates for actuating the dieplates removed. Figs. 6 and 7 illustrate a pair of the die-plates, Fig. 6 being a plan view and Fig. 7 a sectional View ontheline w a: in Fig.6; and Fig. 8 is a perspective view of a certain latch.

a is the framework of the machine, and b I the bed, the latter snrmounting the framework and being provided on its under side with the usual centrally-disposed heat chest or, chamber 0, adapted to be connected by pipesd with a steamzor other generator of a heat-carrying medium.

On the top of the bed I) is arranged at the front middle portion thereof a folding-plate e, and at the back thereof two other foldingplates f, one of which has its top surface recessed, as at g, for the reception of a coincident guiding lug or projection h on the other foldin g-plate f. The plate e has pairs of guideslots c, arranged parallel with the sides of the bed 6, while each of the folding-plates f has similar guide-slots j, said slots j of the plates f being disposed in reversely oblique directions. (See Fig. 2.) The outermost slots of the several plates are penetrated by guiding-bolts is, projecting upfrom the bed 6, while their innermost slots. are penetrated. by bolts Z, which project down through the bed and are free to move vertically only. The lower ends of these last-mentioned bolts are connected by links 112, the several links being adapted to sustain a claw; rt. To the claw is centrally connected a vertical shaft 0 whose lower end is in turn connected with a depressing mechanism consisting ofa lever 10 and a treadle q, fnlcrumed in the frame, and a connecting-link r. The arrangement is such thatby depressing the treadle q the inner edge portions of the several folding-plates will exert pressure on the bed?) or an article disposed between them and said bed. A spiral spring 8, connecting the treadle q with the frame, normally maintains the treadle 8o raised, and consequently keeps the pressure off the folding-plates. E

t designates three shafts which are journaled on the under side of. the bed I) and are connected by intermeshing bevel-gears u, which they carry. The shaft 25, which is adjacent the frontof the machine, carries at one end a crank o, from which the series of shafts is'actuated; At either of its two lim- I its of motion this crank takes against a spiral b spring-buffer w, carried in a socket 00, formed on a bracket y, projecting from the frame:

'work a, which bracket being secured to the framework by a slot-and-bolt connection 2; is thus made vertically adjustable. The front 5 and rear shafts tcarry cams 1, received by forked projections 2, secured to thefQldingplates f by screws 3, and extending downwardly through openings 4 in the bed. Thus by operating the crank the folding-plates f rco may be moved inwardly or outwardly on the bed I). It should be remarked that the front folding-plate e andthe left-hand rear folding-plate f have devices 5, connecting them with their neighboring plates to the right in the manner and for the purposes fully set forth in my patent aforementioned. 6 is an arm which is fulcrumed at 7 at the 5 back of the bed I), and whose free end is formed with a head 8, having an integral cross-piece 9. To the ends of the cross-piece 9 are rigidly secured by nuts 10 the studs 11 of a guide-plate 12. This guide-plate is provided with relatively reverse series of oblique slots 13, the slots of the series being preferably alined and alternating with each other, as shown in Fig. 5. In these slots work the rigid upwardly-extending pintles 14 of the contractile die-plates 15. The upper ends of these pintles are received by cross-slots 16 in actuating'plates 17, which move in a groove 17 in the guide-plate 12 and have longitudinal slots 18, receiving the studs 11 and permitting an inward and outward rectilineal movement of said actuating-plates. The tops of the pintles carry screws 19, whose heads keep the several parts in place. The actuating-plates l7 carry at their inner ends other pintles 20, which work in eccentric slots 20 in a disk 21, carried by a shaft 22, which is journaled in the head 8 of the arm 6, and is adapted to be turned by a handle 23.

In folding narrow articles, such as wristbands, it is necessary that the die plates should be contracted into a very small compass. For this reason, and as best shown in Fig. 6, I cut away practically all of each dieplate except the edge portion thereof and two or more inwardly-projecting tabs or ears 24. The tabs or cars on the opposed dieplates are arranged out of coincidence with each other so as not to interfere, and in order to bring the inner edges of the two plates referred to into the closest proximity said tabs or cars are elevated so as to overlap the opposite die-plate. Said tabs or ears carry the pintles 14. The meeting edges of the several die-plates, it should be remarked, overlap each other even in their most expanded position, (the two die-plates shown in Fig. 6 being abnormally separated.) It should also be remarked that the die-plates are shaped so as to together correspond substantially to the outline of the article which is to be folded.

The arm 6 has an integral rearward extension 25, having a detachable bracket 26, which forms therewith a guide or runway 27 for the rollers 28 of a traveler 29, said traveler being connected with a crank 30, formed integrally with the handle 23 by a pitman 31, pivotally secured at its ends to these parts. The traveller is connected with the framework a by a spiral spring 32.

33 is a book, which is also formed integrally with the arm 6 and is adapted to engage a latch or detent 34, pivoted in the bed I) and normally resting in a substantially horizontal position therein when the arm 6 and the parts it carries assume the position shown in dotted lines in Fig. 1. A tappet 35 on the rear shaft 15 is adapted to engage a ing 36, ex-

tending from the latch, so as to elevate said latch and so release the hook 33. When the arm 6 and the parts it carries are thrown into the position shown in dotted lines in Fig. 1, a spiral spring 37, carried by the hook 33 and adapted to engage the bed 1), serves as a stop or buffer.

38 represents gages each having flanges 39, arranged at right angles to each other, each gage being secured on a corresponding folding-plate f by a slot-and-pin connection 40, which permits an adjustment of the gage in the direction of movement of said plate. The operator sets his work in position for folding by these gages.

In operation the material to be folded is laid on the bed I) with its edges slightlyoverlapping the folding-plates e andf. At this time, of course, the folding-plates are retractedt'. 6., in their outermost positionsand the die and its accessory parts thrown into the dotted-line position illustrated in Fig. 1. until it rests on the material. It should be remarked that so long as the folding-plates are retracted to their full extent the die can be lowered to rest on the bed I), though expanded to its full extent. The crank 11 is then thrown over into the position shown in dotted lines in Fig. 2, causing the folding-plates e and f to move inwardly. This operation efiects the folding of the edge portions of the material around the edges of the die-plates, and it should be remarked that preferably and by a proper arrangement of the came 1 the folding-plates may be made to move inwardly in a successive or substantially successive movement. The operator then draws the handle 23 toward him, causing the disk 21 to revolve and through it and its connections with the die-plates the contraction of said die-plates. When the die-plates have been withdrawn to their full extent, the die may be elevated from the material, whereupon the operator may, by pressing down on treadle q, apply the pressure to the foldingplates necessary to properly crease the material where folded. While the folding-plates are in their innermost position it is desired that the arm 6 carrying the die (which is at this time in dotted-line position illustrated in Fig. 1) should be positively looked back. Otherwise aninexperienced or careless operator might accidentally permit the die to fall, causing the edges of the die-plates and folding-plates to strike against and damage each other. Therefore when the die is thrown back at the point in the operation above referred to the book 33 engages the latch 34 and so keeps the arm and die elevated, and these parts cannot again be returned to the lowered position until, in retracting the folding-plates f, the lug 5 has caused the latch 34 to release the hook.

The die expanded is then lowered The traveler 29 is of value as a counterbalance for the die, which latter may be thus raised and lowered by the operator with great is lowered.

facility. The peculiar connection between this traveler and the handle 23 is' a very practical and convenient factor in the operation of the parts involved. The spring 32 not only acts with a counterbalancing effect on the die, but tends to keep it. open ready for the next folding operation whenever the die It is to be understood that where the terms support and movable support are used hereinafter in some of the claims the bed I) and the arm 6 of that embodiment of my invention which is shown in the accompanying drawings are intended to be respectively comprehended.

Having thus fully described-my invention, what I claim as new, and desireto secure by Letters Patent, is-- 1; In a folding or other substantially similar machine, the combination, with a support, of another and movable support, coacting forming means, a part of said means being mounted on said first-named support and the rest on the movable support, andmeans, controlledfr'om the portion of said forming'means on said first-named support, for lockingthe movable support ina retracted position, substantially as described. t

2. ha folding or other substantially similar machine,'-the combination,=-with a support, of anotherand movable support, coactin g'forming devices, a part of said devices be ing mounted on said first-named'support and the rest on the-movable support,lmeans for actuating the formingdevices on said firstnamed support," and means, controlled from said actuating-means, for locking said movable support ina retracted position, substantially'as described.

3. In' a folding or other substantially simi lar machine,--the combination, with a support, of another and fulcrumed supp0rt,'c0

acting forming -devices,-a part of said devices beingmounted on said-first-named sup-"- port and the rest' on the fulcrumed support,

means for-actuatingthe formingdevices on said first-named support, a hook on saidful cru'med support, and a movable locking-detent adapted to engage said-hook, said detent being controlled'from saidactuating means,

substantiallyas described.

4. In a-folding or other substantially similar machine, the combination, with a bed, of a fulcrumed s'upport, movable folding-plates mounted-on said bed,-acontracti1e-die car-- ried'by' said support and adapted to coact with said foldingplates,-means for actuating said folding-plates,- a tappet movable with a partofsaid actuating means, and a' movable detent,"said detent being-adapted to engage said support in its-elevated position and said tappet'being adapted to move said detent-out combination of a fulcrumed arm, a tool car-- ried'by said arm -and=comprising a movable part, a guide projecting-from the'fulcrum of said arm, a counterbalancing traveler arranged tomove on said guide, and operative connecting means between 'the traveler and the movable part of said tool,'substantially as described. p

6. In a folding or other similar machine,the combination of a fulcrumed arm, a tool carried by said arm, a rotary handle forsaid tool, a guide projecting from the fulcrum of said arm, a counterbalancing traveler arranged to move on said guide, and operative connecting means between said traveler and the handle, substantially as described.

7. In a folding or other similar machine, the combination of a fulcrumed arm, a contractile die carried by saidarm, a rotary handle for said contractile die, a guide projecting from the fulcrum of said arm, a counterbalancing traveler-arranged to move on said guide,-op .erative'connecting means betwe'ensaid traveler and the handle, anda spring controlling said traveler, substantially as described.-

8. In a folding or other similar machine, the

combination of a fulcrumed armhaving a Y scribed.

9. In afolding or other similarmachine, the combination of a fulcrumed'arm, a movable partcarried by said arm a guide-projecting from the fulcrum of said arm,-a-movable coun- 'terbalancing device arranged on the guide and operative connecting means between said movabl'ezpart and said=counterbalancing de-- -vice, substantially as described.

10. Ina contractile die, the combinationot die-plates arranged to move-in: a common plane into close proximity to each-other and of each plate being arranged out of the plane,

the other -plate,and a slotted guiding part receiving said projections, substantially asdescribed.

11. In a contractile die, the combination ofdie-plates arranged. to move in a common and out of opposition to the: projections, of:

plane and into close proximityto each other,-

* the'adjoining portions of saidplates -being cutaway to form alternatingspaces and-projections, and the projectionsofeachplate bea ing'arranged out of the plane,.andopposedto thespaces, of the other plate, and-a slotted guidingpart receiving said projections sub stantially as described. s 1

the; adjoining portions of =said plates .being cut awayto form alternating spaces and pro-r.

j ections, and the projections Of'eachpl-atebeing arranged out of the plane,'and opposed :to

the spaces, of thefotherplataa slotted guiding too part receivingsaid projections, asupport carand out of opposition to the projections, of rying said guiding part, and sliding plates the other plate, and means, engaging said engaging the projections of and adapted to projections, for guiding said plates, substanactuate said die-plates and guided in said tially as described. 15 guide-plates, substantially as described. In testimony that I claim the foregoing I 13. In acontractile die, the combination of have hereunto set my hand this 14th day of die-plates arranged to move in a common January, 1902.

plane into close proximity to each other and CHARLES II. KNAPP. having projections extending from each of Witnesses: 10 said plates toward the other, the projections JOHN W'. STEWARD,

of each plate being arranged out of the plane, JAMES B. NEWTON.

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