US99176A - Improvement in harness-operating mechanism for looms - Google Patents

Description

duced tapes @met @time Letters Patent No. 99,17 6, dated Jmruavry 25, 1870.

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IMPROVEMENT IN HARNESSOPERATING MECHANISM FOR LOOMS,

The Schedule referred to in these Letters Patent sind making part Of the Same- 1,'Gnoncn S. Flinnnxnn, of Indianapolis, in the county otMa-rion, and State ot' Indiana, have invented certain Improvements in Harness-Motion for Looms, of which -the following is a specification.

setting up the pattern-chain, the object being the pro.

duction cfa loom that is simpler' and cheaper in construction than those heretofore in use, and equally eflicieut in weaving any desired pattern.

Description of the Accompanying Drawings.

Figure 1 is a side elevation of part of the front end of the loom, showing the form and arrangement of the upright treadles or harness-levers, and the construction and arrangement of my improved mechanism for operating or calling the treadles, and the relation thereto ofthe pattern-cylinder or chain by which the operation ot' the mechanism is controlled.

Figure 2 is an end view of the same.

Similar letters of reference indicate corresponding parts in the several figures.

As this invent-ion relates wholly to the construction, arrangement, and operation ofthe device for actuating or calling the treadles or levers to which the harness is attached, the treadles being attached at the end of' the machine, substantially as in the ordinary cam-loom, no more of theloom is shown in the drawing than sufiicient to exhibit the relation oi' my device thereto.

General Description.

A is partof the front en'd of the frame.

B, the arches, which areniade with a projection, B', one of which is left off to `show more clearly the construction and arrangement of my device for operating the treadles C, the latter heilig hung on a piu or journal, a., as a fulcrunnin jaws projecting from Dthe end of the frame, much in the usual manner.

' e c arethc slices, against which the rocking cam D works, to give reciprocating motion to the treadles O.

'Ihe cams D, equal in number to the treadlcs, are hung on a shaft, fi, and are provided with an arm, d, to the upper end of which one end of the longitudinal reeiprocating jacks E is loosely pivoted, as shown.

The jacks E have square-shouhlered notches on both the upper and lower edges, with which the transversel reciprocating bars F engage, to give them reciprocat` ing motion, and thus imparting a rocking motion to the cams D.

The jacks E are raised and lowered to engage with reciprocating bars F, by means otliftingjacks G, which lare hung on a shaft or rod,'n, lthe outer end working between guides o, which also serve as guides to the outer ends of .the jacksE.

The pattern-chain or cylinder H is constructed in the usual manner, and hung under the lifting-jacks G, in such a manner that the pins S of the cylinder or described, the cylinder being arranged near the pin or fulcra of the lifting-jacks, in order to secure sufiieient movement of their outer ends without making the rolls of the chain too large, or pins in the cylinder too long.

The reciprocating bars F are operated by means of connecting-rods I, attached to their ends and to the ends of a vibratory lever, J, the movement of' the latter being imparted from an eccentric, K, on the lower shaft L of the loom, being the same shaft that is usually employed to' give motion to the pickers, and in some cases also to the-harness in ordinary cam-looms, the eccentric working between lugs or shoes on the connecting-rod M, the upper end of which is attached to a short arm, J', attached at right angles to the ceutre of the vibrating lever J.

Motion is imparted-to the pattern-cylinder or chain H by means of an eccentric, N, on the upper or crankshaft O and connecting-rod P, attached by its upper end to one arm of the angular lever Q, to the other Yarm of which is attached a hooked pawl that engages with a ratchet on the shaft of thel cylinder H or pattern-chain, carried in the usual manner.

harness'to open the shed of the chain or warp, as required to weave any desired pattern, is as follows:

The pattern-eylinilecH or chain being s et up for any desired pattern, the pins S of the cylinder or rolls of the ehaim-as it is'revolved, operate the lifting-jacks G, toraise and lower the jacks E to engage with the reciprocating bars F; thus, when the long pins S of the cylinder (or, if a chain is used, the large rolls,) raise the lifting-jacks G, which in turn raise the jacks E, so that the upper reciprocating bar F will engage with the notches in their upper edges and give them a longitudinal reciprocating motion, this in turn imparts a rocking motion to the cam D, the latter operating on the shoes e e of rthe treadles O, giving them the vibrating motion that raises and lowers the harness.

-The notches in the upper and lower edges of the jacks vE are arranged in the proper position, and made of sufficient length to allow them, and also the cams D, to remain motionless during a sutcicnt period, while the reciprocating bars F are returning on their;I backward stroke, to permit the pattern-chain or cylinder to be shifted; the outer ends of the cams inthe mean time resting against the shoulder at the lower end of the the rolls of the chain will operate them, as hereafterA The o )eration of m device to call or o )crate the shoe, sovas to hold the lever and harness motionless While the shuttle passes through the shed.

A short pin or small roll raises the jacks E just between the reciprocating bars F, so that neither of them will engage with the notches in the jacks, which, remaining motionless, leave the cams D and treadles G at rest. Where no pin`or roll is used, the lifting andv calling-jacks drop down,.so that the lower reciprocating bar F will engage with the notches on the 'lo'tver side of the jacks E, which operates them in the'same manner as the upper reciprocating bar.

' The advantages secured by the comparatively simple construction and arrangement of the rocking cams working onthe shoes c e ofthe treadles G, these cams` being actuated by reciprocating bars F that engage ,with longitudinal reciprocating jacks E, attached to It will also be apparent toweavers that by means of the arrangement of the rocking-cams D and shouldered shoes e e, the cloth may be woven face-side up or down, as may be required, without any change in any part of the mechanism other than tostart the loom with the harness raised, for weaving the face-side down, and Wit-h them lowered to weave face-side up.

O laim.

`1. The rocking-cams D, in combination with the shouldered shoes e e of the upright treadle 0, `all con- 'structed and arranged substantially as and for the purpose set forth.

2. The combination of the cams D, hung in a vertical plane over the fnlcra of treadles C, lifting-jacks G, longitudinal reciprocating jacks E, reciprocating bars F, with the pattern-chain or cylinder H, all arranged and operating substantially as and for the purpose set forth.

' GEORGE S. FAULKNER.

l/Vituesses D. W. KNEFLER, O. F. MAYHEW.

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