US373246A - newcomb - Google Patents

Description

(No Model.) 4 Sheets-Sheet 1.

0'. N. NEWS-OMB.

HAND Loo M. No. 373,246. 7 v Patented Nov. .15, 1887.

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. 0. N. NEWGOMB.

HAND LOOM.

No. 373,246. Patented Nov. 15, 1887.

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u PETERS, Phohrliihographsr. Washington 0.0.

(No ModeL) 4 SheetswShe et 3. G. N. NEWGOMB.

HAND Loom. No. 373,246. Patented Nov. 15, 1887.

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(No Model.)

4 Sheets-Sheet 4. O.-N. NEWGOMB. HAND LOOM.

No. 373,246. Patented Nov. 15 1887.

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CHARLES N. NEWCOMB,

1 HAND- PATENT 01mins.

OF OMAHA, NEBRASKA.

LOOMQ SPECIFICATION forming pan: of Letters Patent No. 373,246, dated November 15, 1887.

Application filed May 27, 1886.

To all whom it may concern.-

Be it known that I, CHARLES N. N EwooMB, of Omaha, in the county of Douglas and State of Nebraska, havev invented a new and useful Improvement in Hand-Looms, of which the following is a full, clear, and exact description.

My improvements relate specially to handlooms for weaving rag carpets; and the invention consists in novel features of construction and arrangement of parts, as hereinafter described, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in, all the figures.

Figure 1 isavertical transverse section of a loom containing my improvements. Fig. 2 is a plan view of the same. Fig. 3 is a rear elevation with the warp-beam partially broken away. Fig. 4 is a detail view, on an enlarged scale, of the means for operating the crankshaft, the cam on the end of the said shaft being of amodified form. Fig. 5 is a similar view viewed from the opposite side and with the Fig. 6 is a detail perspective view of one of the pickers and a portion of one of the picker-sticks.

In its general construction the loom is as usual.

A is the warp-beam; B B, the heddles,fitted to slide in guides g,- C, the vibrating lay, consisting of swords or side standards, a a, carrying bed band connected at their lower ends by a cross-bar, d.

D is the front or breast roller, and E the cloth-roller.

Upon longitudinal rails e is mounted a shaft, f, provided at one end with a double crank, from which pitmen g pass to and are connected to the heddles B. On the shaft is a ratchetwheel, h.

t dare arms having their outer ends bent over for the attachment of the springs a. 11 i are shorter arms upon the opposite sides of the ratchet-wheel h. Through the upper end of each pair of connecting-straps Z Z, the end of the shorter arms, a" i, and the middle of the arms i i is passed a bolt, 2', which bolt forms the pivot of the pawl It, all as clearly shown in Figs. 4 and 5. Thelower ends of the four straps Z enter a mortise in a bar, m, and are connected Serial No. 203,430. (No model.)

therewith by a bolt passing through the bar and straps. The bar 171. is fitted to slide verticall y on depending pins n, secured between the fixed rails e.

0 is an eccentric on shaftf between the arms of the forked upper end of a piece, go, that is held to rail 6' by a cross-arm, b, attached by cleats or guides a, so as to permit side movement of the piece p, and the lower end of the forked piece 19 strides a trigger, q, that is hung on the frame and passes through a loop, q,on the under side of the bar m.

1' r are stirrups hung on the lower bar, d, of

the lay, with their lower ends bent inward toward the trigger q, and connected at their up per ends to the picker-sticks s by straps t. Springs 15 are interposed between the stirrups and straps-and the stirrups are connected by a strap, t. The picker-sticks are pivoted on the pinsu, on which the lay swings. The picker-sticks extend below their pivots, and their lower ends can be connected by a cord, a, having an interposed'spiral spring, 22', so that the pickerstickscan be held at the outer ends of the boxes when not in use.

' On the back of the standards a of the lay triangles v are attached, and these are connected by short rods (1 to the slide-bar m, so as to cause the bar to rise and fall as the lay moves forward and back, and thus give movement to straps l and pawls is, so as to cause intermittent rotation of ratchet-wheel h. The wheel h is moved a half-revolution by the action of the two pawls at each complete reciprocation of the lay, and the heddles thus shifted.

The rotation of the shaft f with wheel h causes the shifting of piece 10 by eccentric 0, and the trigger q is thereby shifted above the bent ends of the two stirrups r alternately, sothat, the trigger being pressed down by beam m, the pick er-sticks s are operated in alternate order.

* The back beam, e, over which the warps pass, ishung on pivotsf,and is connected bylooselyjointed arms g to the posts k, that project down between rails e, and are supported thereon by spiral springs i. When bar m rises, as before described, it lifts the posts h slightly, thereby moving the beam 6 back far enough to strain thewarp just at the moment the reed strikes the rag filling, which insures its being beaten up closely. As the lay returns, the beam 0 comes forward again and the warps are slacked enough to permit of the shed opening widely and easily.

For giving tension to the warps, straps 70' pass around the heads I of beam A, and are connected to levers m, that will carry adjustable weights m*. The front roller, D, over which the carpet passes, is provided with sharp pins for holding the fabric. The winding-roller E is operated by a pawl, a, hung on the end of a weighted lever, n, which is raised by contact ofa projection on the lay-standard a, so that the pawl is caused to act on a ratchet, 0,on the roller when the lever again falls. The roller D is moved intermittently in the same manner by a weighted lever, 19', carrying two pawls, a, so as to move therolleror take up the length of only a half-notch if that is all that the strain will permit. The tension caused by lever 11 is always the same, however large the roll on roller E may be, and the strain being entirely on rollerD the weight on lever n is just enough to roll up the carpet.

Thepicker sticks project through slots in the shuttle-boxes -r and are provided with pickers 8, made of sole-leather and cupped on the side to receive the shuttle end, and the sticks pass through loops at the backs of the pickers, whereby the horizontal movements of the pickers are permitted. The front of each box is formed by a pivoted piece, t, having a beveled projection at its outer end that is acted on by the picker 3' when the shuttle enters the box, so as to press the front end or portion of the piece 1 inward against the shuttle, thereby locking the shuttle firmly in the box until the picker starts forward, when the piece t is opened or spread by the spring 1/. on Its outer end.

For operating the loom the lay is provided with a handle, 1/. In the forward position of the lay the warps are straight,the ratchet-wheel h having made but a quarter-revolution, and they are strained by the beam 0. The weights on levers n p then act to take up the slack caused by the blow of the lay. At the baekward movement of the lay the warps slack, the shed opens, the shuttle is thrown, and levers n p are raised, so that the pawls a a move down and engage again.

Having thus described my invention,what I claim as new, and desire to secure by Letters Patent, is

l. The combination of crank-shaft f, pitmen g heddles B, ratchet h, pawls k, arms i, straps Z, and slide-bar m, substantially as described, for operation as specified.

2. The combination of pivoted beam e, arms 9, posts h, springs i, and slide-bar m, substantially as and for the purpose specified.

CHARLES N. NEWCOMB.

Witnesses:

JOHN J. MoNELLs, J. W. LOUNSBURY.

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