US280489A

US280489A - John g

Info

Publication number: US280489A
Authority: US
Publication date: 1883-07-03
Anticipated expiration: 1900-07-03

Description

(No Model.)

J. G. LIND'EMANN.

APPARATUS FOR STRETGHING FABRICS. No. 280,489. Patented July 8, 1883.

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N, PETERS. Phokoiilhugnpher. washm lun, D. c.

V UNITED STATES JOHN G. LINDEMANN,

PATENT. OFFICE.

OF NEW YORK, N. Y.

APPARATUS FOR STRETCHING FABRICS.

SPECIFICATION forming part of Letters Patent No. 280,489, dated July 3, 1883.

(No model.)

10 jack; Fig. 3, an edge View of Fig. 2; and Fig.

4, a horizontal section thereof on the plane of the line 0 c, Fig. 2; Fig. 5, a detail face view of part of the supporting-rail.

This invention relates to certain improvements on the apparatus for stretching fabrics, which is described in Letters Patent No. 263,792, dated September 5,1882; and the invention consists in a novel combination of the stretching-frame with a lower distending apparatus, as hereinafter described.

In the drawings, the letters A A represent beams fixed in the building, from which beams are suspended, by straps a a, rails or bars B. The straps a are attached to the ends of the rails B, so as to leave the upper edges of said rails free for contact with the rollers Z) of the carriages O G.

D D are the upper bars, and E E the lower bars, of the stretching apparatus, in or by which bars the fabric F is clamped or held. The upper bars, D, are suspended by chains or links, or otherwise flexibly, from the carriages O, that ride on the rails B.

Instead of the tackle for stretching the fabric F that has heretofore been proposed, I eniploy the jack G, which is shown more clearly in Figs. 2 and 8. This jack consists of asuitable upper frame, 0, in which is hung the the wheel f, meshes into the teeth of avertical ward when the lever h is vibrated on its ful crum. The framing 6 stands on four posts, k 5

7c,between which the lower enlargement, l, of the rack j is guided-that is to say, to the lower end of the rack j is fastened the plate Z, that fits between the posts 70 and finds its guidance there, so that under the strain of the stretching action the rack cannot be bent aside. To this plate I is secured the lower end of the rope or chain 111, the upper end of which is fastened to the lower bars, E, of the stretching-frame. Whenever the fabric F is to be stretched, the proper number of these jacks G is placed beneath it, fastened to the floor by suitable hooks or claws, and connected with the chains m, and then the levers h are moved until these chains are stretched to the proper extent, and with them the fabric F. Vhen the fabric has set or dried, the pawl g is lifted out of the wheel f, and the said wheel and its pinion can then be revolved in the opposite direction, so as to lift the rack j and slacken the chains m and allow the disengagement of the jacks from the stretching apparatus and their conveyance to other stretching apparatus, where they can be further employed.

I claim The combination of the movable stretchingframe D E, and devices for holding the same suspended, with the jack G, consisting of the posts is, bottom plate, Z, rack-bar j, wheel f, pawl g, lever h, and rope or chain m, for operation upon a fabric heldin said frame D E, substantially as specified.

JOHN G. LINDEMANN, itnessesz WILLY G. E. SCHULTZ, WILLIAM H. 0. SMITH.