US62659A - William mat - Google Patents

Description

N.FETER5. FHOTO-UTMDGRAPHER. WASHINGTON, D C,

@geiten tetra lsteat @fitte IMPROVED MOBE FOR PRESSNG LEATHER 'SEAMS.

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TO ALL .WHOM IT MAY CONCERN:

Be it known that I, WILLIAM MAY, of Binghamton, in the county of Broome, and State of New York, have invented a new and improved Machine for Pressing Leather Seams; and I do hereby declare that the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawings, forming part of this speci-cat-ion. V

The object of this invention is to construct and arrange a machine whereby leather seamsof any descrip- Y tion, whether straight or curved, whether used for boots or shoes, or for saddles, or for any other article whatever, may be pressed neatly and without trouble, said machine being ot' simple construction and cheaply made.

,My invention consists in the application of treadles to such Seam-pressing machines; also, in the manner ol` making the clamping device, wherein the leather is held, seliadjustable, for any thickness of leather; and also in the adjustable spring, whereby the pressure upon the seam may be varied to suit different kinds of work; and also in the Construction ot' the treadle, so that the least possible strainmay be put upon theworking parts of the machine. ln the accompanying drawing my invention is completely illustrated.

Figure 1-is a side elevation of my invention, partly in section, showing the parts at rest.

Figure 2 is a similar view, showing the parts in working position.

Figure 3 is a vertical cross-section of the same, takenon the line 2: x, fig. 2f

Figures 4 and 5 are detail views, to bc hereinafter referred to.

Similar letters of reference indicate like parts. i

A is a table or platform, which-is m'ade of wood or anyother suitable material, and upon which all the other parts of my machine are arranged. A. cast-iron or other metal upright, B, is secured to the table, and in it is arranged a box, wherein the horizontal axle of the wheels C and D is mounted. The wheel C is 0f smaller diameter than the wheel D, and to its periphery are secured two cords, 0i and b, the latter going direct down to the centre of the treadle E, while the former is connected to a spiral spring, c, which is attached to an arm, c, which extends at a right angle from the treudle and is part of the saine. This arm does greatly protect the spring c, as, when the treadle is' pressed down, as in fig. 2, the end ot' the arm c', to which the spring. is attached, will swing around the pivoting point d of the treadle, and will thereby considerably diminish the distance from end to end of the spring,thereby lessening the strain of the spring. By pressing on the treadle the wheels C and D will be rotated inthe direction of the arrow, shown thereon in iig. l; thereby a cord. or rope, e, which is secured to the periphery of the large wheel, and'to the rcareud of a sliding-bar, F, will draw this bar forward to the position shown in fig. 2. As soon as thc pressure of the treadle is released the spring c will draw the wheels back again, and therebyia oord, f, which is also attached to the periphery oi' the large wheel, and to the front end of the bar F, will draw this bar back again into the position shown in fig. 1. The bar F is pivoted to a small block, which fits into a dove-tailed groove, b', which is sunk into a horizont-.tl arm, B, attached to the support B. Another arm, G, or rather two horizontal extensions, arc securerl'to the front edges of the upright B, and between them is held the clamp and holder H. This consists of the lower stationary block or rest 7L, to which the slotted clamp h/ is pivotcd, as shown. A spring, I, which is of flat metal plate, and in the shape of a hook, is secured with its short arm to tbe rear endot' the bar F, and is held there by a set-screw, g. This short arm is so bent that thespring will rest upon the har F, in rear oi' the fastening' point g, so that its extreme lower end will press up against thc head of the set-screw g. Thus the more the screw g is turned down the harder will be the pressure of the smoother K, which is secured to the uppervend of the spring I, upon the seam, which is held between the rest L and clamp 7L', as shown in iig. 3. The lower edge of the rest 7L conforms to and is parallel with its upper edge, so that when a curved seam' is to be pressed, and a curved rest and clamp, H, have to b'e used, (iig. 4,) then the front end of the bar F, which fis provided with a friction-roller,f, (fig. 3,) is pressed against this curved lower edge, and thereby the smoother K will be held with equal pressure upon each part of the curved upper surface, while otherwise the pressure would be greatest where 7i was highest, and eine ce1-sa. The leather, after having been sewn, is placed between the rest and clamp, in the manner shown in fig. 3, so that the seam will bc upon the centre et' the rest. The trcadlc isthen pressed down and the smoother or presser K will therebybe brought over the senin into thc position shown in tig. 2li When the treadle is rcleasedthc presser will he' pulled back again by the action of amer the spring c, While the leather, is also relensei from the rest and clmnp by means' of o spring, i, which throws the clamp h" up :is soon es the pres-sure upon the same ceases, ns shown in iig. 1. To adept this elmnp and rest to leather of different thickness, the pivoting pin Z, `which connects the rest Vand chimp, posses through a. slot in the olnmp, es seen more particularly in {ig.i5, which is a. vertical cross-sectionfthrough that portion of the rest and clamp. A`roller may, it' required, ybe substituted for the fixed smoother or presser K, and also two rollers in place of the clamp z, one on erich side of the rest h. In vthe letter cnsethe centre of the rollers would, have to be in line with the centre of the presser K, and the two rollers would he secured to :in extension of the spring I, so es to travel with the presser K and. hold the leather down whore it is needed.

Having thus described my invention, what I claim als new, and desire to se'euro by Letters Patent, is-

1.. The application of a. trendle to n machine for pressing leather seems; substantially herein shown and described. i l I 2. The erin c', on the treodle E, in connection with the spring cond roiler C, substantially ns and for the purpose herein shown and described.

3. The spring I, and the manner of regulating its pressure by means ofthe serew g, substantially as herein shown and described.

4. The rest h sind clamp h', in Connection with the pin Z :und spring z', mede 'and operating substantially as und for the purpose herein shown and described.

5. The removable i clamp and holder H, in combination with the ixed supports G, substantially as and for the purpose herein shown and described., v I

6. The sliding-bnr F, towhieh the spring I is secured, when mede and operating substantially as herein shown and described.

7. The rest 7L, which is so constructed that its lower edge will be parellel'with its upper surface, substantially-as and for the purpose herein `Shown and described.

' WiLLrAM MAY.

Witnesses:

F. A. DURKEN, W. WV. WrlnAron.

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