US283570A

US283570A - Territory

Info

Publication number: US283570A
Authority: US
Publication date: 1883-08-21
Anticipated expiration: 1900-08-21

Description

3 Sheets-Sheet 1. T. K. CLARK.. MAGHINBBOR .GHANNELING HARNESS STRAPS. No. 283,570. 1883.

l (No Model.)

(Nn Model.) 3 Sheets-Sheet. 2.

- T. K. CLARK. MACHINE POP. GHANNELING HARNESS STRAPS.

No. 283.570. Patented Aug. 21, 1883.

(No Model.) Y Sheets- Sheet 3.`

T. K. CLARK.

MACHINE P0P. GHANNBLING HARNESS STRAPS. No. 283,570. Patented Aug. 21, 1883.

Jl i

in a 4frame that `is ycapable of adjustment,

v Figurel represents a plan view of 'a machine citizen of the United States, residing atTie `edge of the strap may be regulated, the strap UNITED STATES PATET FFICE,

THOMAS K. CLARK, OF TIE ASIDING, vVYOMIFG TERRITORY.

MACHINE FOR'QHANNE LING. HARNESS-STRAPS..

SPECIFICATION forming part of Letters Patent No. 283,570, dated August 21, 1883.

Application filed April 6, 1893. (No model.)

To @ZZ whom z5 may concer-n.-

Be it known that I, THoMAs K. CLARK, a

Siding, in the county of Albany and Territory of TWyoming, haveinvented new and useful lmprovements in the art of Channeling Leather, being a machine for channeling harness-straps of which the following is a specication.

rlhis invention is directed to the production of an organized machine for channeling or cutting the grooves in the surface and edges of leather straps used in harness-making; and the said invention consists of a .set of vert-ically :acting and a set of obliquelyacting knives, which make the suriace and edge cuts in the straps to receive the uniting sewingthreads, said knives arranged on a suitable frame opposite to each other and in such position as to out the channel along both the top and side edges ofthe strap at the same operation, the knives being made adjustable, so as to gage the depth or angle of cut, and arranged whereby the distance of the channel from the being held in position beneath the knives upon a springbed and between guides which are cal pablo of adjustment, in order to receive straps of different Widths.

Referring to the accompanying drawings,

for channeling leather straps, constructed according to myinvention; Fig. 2, a central longitudinal sectional ele 'ationg Fig. 3a transverse sectional elevation on the line x a, Fig. l; Fig. 4, a transverse sectional ,elevation on the line y y, Fig. l. Fig. 5 shows the strap with vertical and oblique channels cut therein 5 Fig. 6, a transverse sectional elevation on the line a: ai, Fig. l, showing the vertical channelingknife as turned back; and Fig. 7, a transverse sectional elevation on the line y y, Fig. l, showing the oblique channeling-knife as turned back; Fig. S, a top view of the knife, showing the slot therein; and Fig. 9 is an end view of the housing and adjustable carrying devices of the vertical knife.

A is the frame of the machine, having a centrai longitudinal opening, A, into which abcd, A, is placed and supported upon springs a. Upon the top of the frame A, at one side thereof, are rigidly secured boxes or housings B C for the cutter-stocks, and arranged opposite to these are similarhousings, B C', merely resting upon `the frame A, but removably secured in position by spring-catches D and E, secured to the frame and arranged to engage upon a suitable catch on the housings B C. These movable housings are connected to the iixed housings by a set of curved yokes, F and G, secured rigidly to each side ofthe movable housings, and united to the fixed housings B `and C by hinges or pivot-bolts, as at H and I. These/housings B B form the holder for the cutters for making the vertical channel in the straps, and the ones C C form the holders for the cutters for cutting the oblique channel.

1Within the housings B and B is arranged a box or guide, J, carrying the stock of the vertically-acting cutting-knives, and adapted to be adjusted in or out bythe screws K, shoul- `dered in t-he ,housings B and B', and passing through nuts formed in the box or guide J, as at k. Nithin the top of these guides J isv arranged a cutter-stock, L, moving with the boxguide J, but having a movement or adjustment independent of said guide through a screw,

M, shouldered in the end of said guide J, and passing through a nut formed in the stock L, as at l. The movement of this part L and its arrangement in regard to the part J is the same as the arrangement and movement of the part J with housing B. These stocks L v carry the, vertically-acting knives ll" which are adjustably secured bya set-screw, m, passing through a slot, mf, therein to a standard, N,.working in a bearing, O, in the face of the stocks L, and through a bracket-support, l?, secured tothetop of said stocks. rPhe standards N ,have` a presser-foot, n, and a spiral spring', Q, for keeping the knives down in place, arranged around the standardbetween the end of the 'bracketsnpport P and a collar or stop on the standard, as at q. At the top of the standards is arranged a canrfaced lever, R, for raising and holding the knife from action, or above the work.

Within thehousings C C are arranged stocks S, which carry the knives for making the 0blique cuts in the edge of the straps. These stocks S are adapted to be adjusted so as to approach to or recede from the work in asimilar manner to the ones J of the vertically-act- S 1s agloove, u.

in the housings C C and passing through a nut in the interior of the cutter-stocks. These stocks S, as also the parts J and L of the ver- Fig. 2, along their bottom edges, which fit into grooves formed along the lower edges of y the housings B B G C and the guides J, and along the lower front edge of the cutter-stocks Through these cutter-stocks S is formed an opening, S', which tapers from front to rear, forming only a narrow slit at the front sufficient to permit the passage of the point of the knife U. Vithin this opening S is arranged the cutting-knife, which is composed of a long bevel-ended blade, U, having a slot, V, through its body. Behind this blade is arranged a gage or plate, W, in a screwthreaded hole, at the-'end of which is received a thumb-screw, X, which passes up through a slot, '10, in the stock S, and forms the means by which the knife is held in place. At the front of the stock S is a set-screw, Y, which is arranged to engage -against the top of the knife near the point, and thereby hold it at any angle that it may be set by the screw X. The knife being slotted, as at V, the degree of protrusion of the knife may be regulated, and

consequently the depth of cut gaged.

Suitable scales are formed on the sliding parts, in connection with pointers on the stationary housings, ,as at 1 and 2, whereby the uniform adjustment of the parts may be determined.

Z is a guide-plate against which the strapy is set, and F F are rollers secured to the yokes F and G in such position to bear upon the strap` being channeled and hold it down inI connection with the presser-feet and springbottom.

The operation of forming the vertical channel along the top surface of the strap will first be described.

The knives M are-first set at the proper depth and secured by the set-screwsm. They are then raised above the work bythe camlever R, and held in this position until ready for action. The spring-catch D is then re-v leased from the movable housing B, and the said housing lifted up and swung over upon the opposite side. The strap to be channeled is now placed in position against the side plate, Z', and the housing B brought back into position and secured by the spring-catch D. By operating the thumb-screws K the guide-boxes J are made to advance until their front edges come flush against the edges of the strap, by which means the strap is held and guided in proper position beneath the knives. i Now, by operating the thumb-screws M the cutter-stocks L are advanced over the strap and the knives brought drawing the strap by hand beneath the knives in the direction of the arrow, the channels for the insertion of the sewing-thread are formed regularly and quickly along the top surface of the strap, as shown at j' f, Fig. 5. The spring-bottom A clamps and holds the strapup tight against the knivcs and the rollers F, whereby no lateral movement ofthe strap is permitted. p

The Aoperation of the oblique channeling mechanism is about the same as that of the vertical cutting apparatus, the stocks carrying the prop erly-adj usted knives being brought up to the work bythe screws, which cause the knives to enter the top edge of the strap in an oblique or slanting direction, the stocks being moved forward until the strap is flush against and within the groove along the lower` margin of the stocks, which hold the strap secure'in place. By drawing the strap beneath the knives in the direction of the arrow the Aoblique channels along the top edge of the strap are formed, as shown at g g, Fig. 5..

If desired, the operation of cutting both the vertical and oblique channels may be performed simultaneously by passing the strap continuously from one .set ofy cuttersto the other.

The machine organized, as described, does Athe Work heretofore done by hand, and the channeli-ng-cutters arearranged in said machine to operate upon the strap as it is drawn through the same guid eway, Whether for m-aking the surface or oblique channels, and the construction of the cutter-carrying mechanism and the means for placing the same in and out of use allow them to be brought into use separately or together to suit the style of channeling required.

I claiml. In a machine for channeling leather straps, the combination, with'the yielding IOO IIO

bed A, the roller F, the housings B B, and Y the stocks L L, adapted for adjustment within said housings, of the vertically-adjustable standards N N, secured to the ends of said stocks, each provided with a presser-foot, n, a'knife M', a vertically-acting spring, Q, and a lifting device, all constructed and arranged asy and for the purpose described.

2. In a machine for channeling leather straps, the combination, with the Vhousings placed opposite each other, of guide-frames adapted to be adjusted within said housings for different widths of straps, adjustable stocks arranged within said guide-frames, and vertically-acting knives carried by said stocks, as and for the purposes described.

3. In a machine for channeling leather straps, in combination with the stationary housings B and G, carrying each an adjustable cutting-tool, the housings B and C', of

` plate Z, rollers F', and adjustable cuttingknives, the springlactuated bottom A a, operating to' press and hold the strap in position to be acted upon by they knives, as hereinbefore described.

6. The combination, with the housings C C', of the cutter-stocks S S, adapted for ad- :zo justiuent in said housings, the obliquelyarranged cutters U U, and means for adjusting f vass-,57o i l* said cutter and their stocks, as and for the purpose set forth.

7 The cutterstocks S, having interior openings, S', obliquely-arranged slotted knife U V,' plate NV, fastening-screw X, and set- Sorenr Y, all arranged and operating as hereinbefore described, for the purposes specified.

8. The combination, with the cutter-stocks S, having a groove or recess, u', forming an overhanging projection along its front lower edge, of the cutting-tools adapted to be vertically adjusted beneath said overhanging projection, and the screws X and Y, as and for the purpose set forth.

In testimony whereof l have hereunto set my hand in the presence of two subscribing Witnesses. l

THOMAS K. CLARK. Witnesses:

' XV. J. BRoAnHURs'r," JOHN J. LrNDsnY.