US775076A

US775076A - Shedding mechanism for looms.

Info

Publication number: US775076A
Application number: US22135804A
Authority: US
Inventors: Randolph Crompton
Original assignee: CROMPTON THAYER LOOM Co; EDWARD D THAYER; WILLIAM B SCOFIELD
Current assignee: CROMPTON-THAYER LOOM Co; WILLIAM B SCOFIELD; CROMPTON THAYER LOOM Co; EDWARD D THAYER
Priority date: 1904-08-19
Filing date: 1904-08-19
Publication date: 1904-11-15
Anticipated expiration: 1921-11-15

Description

No. 775,076. PATBNTBD Nov. 15, 1904 R. GROMPTON. SHBDDING MEGHANISM PoR Looms.

APPLIGATION FILED AUG. 19, 1904.

N0 MODEL.

UNTTED STATES Patented November 15, 1904.

PATENT OFFICE.

RANDOLPH CROMPTON, OF IVORCESTER, MASSACHUSETTS, ASSIGNOR TO HIMSELF, GEORGE CROMPTON, EDVARD D. THAYER, AND IVILLIAM B. SCOFIELD, OF IVORCESTER, MASSACHUSETTS, DOING BUSINESS AS CBOMPTON -THAYER LOOM COMPANY, OF IVORCESTER., MASSACHU- SETTS, A FIRM.

SHEDDING IVIECHANISIVI FOR LOOIVIS.

SPECIFICATION forming part of Letters Patent No. 775,076, dated November l5, 1904.

Application led August 19, 1904. Serial No. 221,358. (No model.)

To /r/I/ whom, it 77mg/ concern.-

Be it known that I, RANDOLPH CRouPToN, a citizen of the United States, residing at 'orcester, county of lYorcester, and State of LMassachusetts,have invented an Improvement in Shedding Mechanism for Looms, of which the following' description, in connection with the accom panying drawings, is a specification, like characters on the drawings representing like parts.

This invention has for its object to improve the shedding' mechanism of looms, especially in the parts for supporting the fiexible connection between the heddle-frame and the jack for moving the same.

Figure l in elevation shows a suflicient portion of a jack, heddle-frame, and loom-frame with my improvement added to enable my invention to be understood; and Fig. 2 is a section of my improved sheave, together with the heddle connections sustained therein.

The jack A, arch B, heddle-frame C, and sheave I) are and may be all as usual. lith these usual parts I employ a novel sheave E. (Shown in section and enlarged in Fig'. Q.) Each sheave E supports two iiexible connections fr and that are attached through hooks c to the jack of whatever construction, while the sheave D supports but one connectionnamely, the end 6X of the connection 1-the connection bx being' attached to the heddleframe in usual manner, while the lower end of the connection ff, is attached also to the heddie-frame, said connection being' attached to the heddle-frame near its opposite end. That the sheave E sustain two heddle connections, it is provided with two concentric connectionsustaining surfaces, one of said surfaces being, however, located at a greater distance .from the rod Z on which said sheave turns than the other surface. In making the novel sheave the periphery thereof is tapered to leave a supporting-surface, as 2, having side walls 3, said surface between said side walls sustaining' the connection a, which is of greater area in cross-section than the part of the connection 6X. To provide a supportingsurface 4 in the part of the connection 72X, a pick 5 is formed that leads thereto, the pick opening' below the surface 2. In this way and as shown in Fig 2 I am enabled to provide two supporting-surfaces Q and 4 for the heddle connections which have a common center of motion; but the surface Q is farthest removed from the center of the rod (Z. The

surfaces

2 and 4 are adapted to sustain the two heddle connections fz and in the same vertical plane, so that the strain on each connection is direct and the same in character, and neither connection touches the other.

The sheave shown above the heddle-frame may be duplicated below the same, and the connection from the lower bar of the heddleframe will be connected in usual manner with the opposite end of the jack A, said end being herein omitted, but shown in my application, Serial No. 212,692, liled June l5, 1904.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-'A I. The combination with a heddle-frame and flexible heddle connections attached to the frame near its opposite end, of a sheave having a plurality of concentric connection-sustaining surt'aces to sustain both said connections in the same vertical plane and out of Contact one with the other.

2. The combination with a heddle-frame and iiexible heddle connections attached to the frame near its opposite ends, of a sheave sustaining both connections in the saine vertical plane.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

RANDOLPH CROMPTON.

Vitnesses:

JOHN C. EDWARDS, MARGARET A. DUNN.