US404314A

US404314A - smith

Info

Publication number: US404314A
Authority: US
Publication date: 1889-05-28
Anticipated expiration: 1906-05-28

Description

(No Model.') 3 Sheets-Sheet 1. D. P. SMITH.

,GLIP 0R HOLDER FOR GLOTH STRETOHING MACHINES. No. 404,314. Patented May 28, 1889.

H W v Hw aw JUN 1, Q s WE v w fifi (No Model.) 3 Sheets-Sheet 3.

D. P. SMITH. CLIP OR HOLDER FOR CLOTH STRETGHING MACHINES.

N0. 404,314. Patented May 28, 1889.

UNITED STATES PATENT OFFICE.

DAVID PIOKEN SMITH, OF SALFORD IRON VORKS, NEAR MANCHESTER, COUNTY OF LANCASTER, ENGLAND, ASSIGNOR TO MATHER & PLATT,

OF SAME PLACE.

CLIP OR HOLDER FOR CLOTH-STRETCHING MACHINES.

SPECIFICATION forming part of Letters Patent No. 404,314, dated May 28, 1889.

Application filed August 23, 1888. Serial No. 283,548. (No model.) Patented in England February 25, 1887, No. 2,912, and in France February 23, 1888, No. 188,920-

To all whom it may concern:

Be it known that 1, DAVID PIOKEN SMITH, a subject of the Queen of Great Britain, residing at Salford Iron WVorks, near Manchester, in the county of Lancaster, England, have invented new and useful Improvements in Clips or Holders for Cloth-Stretching Machines, (for which I have obtained a patent in Great Britain, dated February 25, 1887, No. 2,942, and France, dated February 23, 1888, No.188,920,) of which the followingis a specification.

This invent-ion relates to clips or holders employed in machines for stretching or finishing woven fabrics, in which these are operated upon and carried by endless chains or equivalent means fitted with clips for holding the fabric by its selvages, so that as the chains are made to diverge from each other the clips effect the stretching of the fabric.

According to the present invention such clips or holders are constructed with a fixed horizontal lower jawand an upper movable jaw, which is caused by gravity to drop onto the lower jaw, so as to grip the selvage of the fabric between them, but which is prevented from so gripping the fabric until the selvage is in the exact required position betweenthe jaws by means of a regulating-guard connected to the movable jaw, and so arranged as to bear upon the selvage of the fabric, and thereby keep the movable jaw in a raised position until the selvage has been brought to the exact required position between the jaws, when the regulating-guard, losing its support, will drop into an opening in the lower j aw, and will thus all ow the movable upper j aw to come in contact with and grip the fabric. The movable upper jaw and its adjustable regulating-arm can be constructed in a variety of ways for fulfilling the above described functions.

Figure 1 of the accompanying drawings shows a sectional view of the clip or holder connected to a link of the endless chain,with one form of movable jaw and regulatingguard, the fabric being in such a position in the clip that the guard holds the upper jaw in and a back view of another modification.

Figs. 10 and 11 show, respectively, a crossseotional and a back view of another modification. Figs. 12 and 13 show, respectively, a cross-sectional and a back view of another modification. Figs. 14 and 15 show, respectively, a cross-sectional and a plan View of another modification; and Fig. 16 is a sectional view, on a reduced scale, taken on the lines so :10, Fig. 15.

The clip or holder consists of a lower jaw, A, formed in one with the link B of the endless chain and having two arms, D, to which is pivoted at E the upper jaw, F. This is made to slant inward to a slight angle, so that when it rests upon the fabric, X, with its lower chisel-edge and an outward pull is put upon the fabric it will nip the fabric firmly upon the slotted plate 0 of the lower jaw. The regulating-guard G consists of a bent piece of wire, which is adapted to slide vertically in a socket, H, which in turn is adapted to slide horizontally in an orifice in the upper end of the jaw F, for the purpose of adjusting the lower end of the guard in a vertical and a horizontal direction relatively to the grippingedge of the jaw F. The guard G is held in the position to which it is adjusted vertically by a set-screw, H, tapped into a socket, H, to bear against that part of the guard which is within the socket, while the latter is held in the position to which it is adjusted horizontally by a set-screw, H tapped into the jaw F to bear on a shank or stem, H forming a rigid part of the socket.

WVhen the fabric, X, is inserted between the jaws in the position shown in Fig. 1, the end of the guard resting on the fabric will keep the upper jaw raised, so as not to grip the fabric; but when the latter moves outward to such an extent as to deprive the guard of its support it will fall into the slot 0 of the plate 0 on lower jaw, and thus allow the upper jaw to grip the fabric, as shown in Fig. 2. It will be seen that the exact position of the selvage when this grip is effected will depend upon the exact adjustment of the regulating-guard relatively to the upper jaw, and consequently this capability of adj ust-mentto suit different kinds of fabrics to be treated is of great importance.

I is a weight adjustable on the stem of the socket II, for balancingto a certain extent the weight of the socket II and guard G, so as to regulate the pressure with which this bears on the fabric.

Fig. 5 shows a back view, Fig. 6 a seetional view, and Fig. 7 a plan, of an arrangement in which the regulating-guard consists of a forked stem, G, vertically and horizontally adjustable in the slot of a lug, F, on the upper jaw, F, and carrying a roller, G, which rests upon the fabric, so as to raise the jaw F until the fabric is drawn outward to the required extent.

The means for adjusting the guard (shown in Figs. 5, (3, and 7) comprise the slot F in the lug F and nuts F F, respectively, engaging the screw-threaded part of the fork ed stem above and below the lug, so that by loosening one nut the forked stem can be moved along the slot and then be fixed in its adjusted position by tightening such nut, while by turning the two nuts in the proper direction the forked stem can be raised or lowered in the slot.

In the arrangement shown in Figs. 8 and 9 the upper jaw, F, has a horizontally-slotted arm, F, to which is secured, by means of a pinching-screw, K, the vertically-slotted arm G of the regulating-guard G, which is thus adjustable in all directions.

In Figs. 10 and 1.1 the jaw F, carried by the pivot E, is provided with a transverse orifice, into which screws the threaded shank of the guard G, so that by axially rotating the guard in the proper direction its lower or free end is adjusted horizontally toward or from the gripping-edge of the jaw F. The guard in this construction is composed of a piece of wire, which can be bent up and down to secure the required vertical adjustment of its lower end relatively to the plate C and jaws A and F.

In Figs. 12 and 13 the jaw F, carried by the pivot E, furnished with a lug, F, having a socket, II, in which is arranged the guard G.

The guard is composed of a piece of wire screw-threaded at its upper end and screwing into the socket, so that by axially turning the guard in the proper direction it is raised or lowered. The socket II is provided with a screw-threaded shank, II", engaging a screwthreaded orifice in the lug F, to secure the horizontal adjustment of the guard relatively to the plate O and jaws A and F.

I do not confine myself to an adjustable guard capable of varying the position of its lower end relatively to the fixed and movable jaws. I may form the guard G rigid with the movable jaw F, as in Figs. 14, 1.5, and 16, where the letter I3 indicates a link formed with the two upper arms, D, to which the jaw F is pivoted by a pivot, E, and with a lower jaw, A, to coact with the pivoted jaw and plate (3. The link B has a tenon, 13, at one end engaging a recess in a bar, 13 and secured by a pin, B, to connect the link 13 with another link (not shown) constructed the same as the said link 13. In the example shown in liigs. ll, 15, and .16 the clip or holder comprises two guards, G, formed integral. with the jaw F and located, respectively, at the end portions thereof. The operation of the guards is the same as described with reference to the other constructions, except that such guards are not adjustable relatively to the movable jaw.

Having thus described my invention, what I claim is 1. The combination, with a link, of a clip or holder composed of a lower jaw fixed on the link, a pivoted upper jaw that drops by gravity toward the lower jaw to grip the fabric between them, and a guard carried by the pi voted jaw to rest on the fabric and keep the upper jaw raised until the fabric is drawn under the guard, substantially as described.

2. The combination, with a link carrying a fixed lower jaw, of a pivoted upper jaw that drops by gravity toward the lower jaw to grip the fabric between them, a guard movably connected with the pivoted jaw to rest on the fabric and keep the upper jaw raised until the fabric is drawn from under the guard, and means for adjusting the lower end of the guard to and from the gripping-edge of the pivoted jaw, substantially as described.

In testimony whereof I have signed my name to this specification, in the presence of two subscribing witnesses, this 8th day of August, A. I). 1888.

DAVID RICKEN SMITH. lVitnesses:

ALFD. 'WILLET'JJ, THOS. G. WlrrsoN.

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