US1369700A - Lever for loom-dobbies - Google Patents

Description

Patented Feb. 22,1921.

W H. NEEDHAM AND N. VILE.

LEVER FOR LOOM D OBBlES.

- APPucATloN man JUNE 12, |920. 1,369,700.

il NITE STAT WILLIAM H. NEEDHAM AND NORMANJ. vrLE, or'woiicns'rna, MASSACHUSETTS,

essreivons 'ro cnoiur'roiv a KNOWLES Loom -wonKs .A `CORPQRATION for MASSACHUSETTS.

LEVER' ron Loom-Dosieres. k

Lscavco.

To allwhom t may concern Be it known that we, VILLIAM H. NEED- HAM and NORMAN J. Vim, citizens of the United States, both residing at Worcester,

in the county of Worcester and State' of It is one object of our invention to improve the construction and lower the cost of manufacture of such levers by constructing the same from a single piece of sheet metal.

Another feature of our invention relates to the vision of a novel connection by which the dobby hooks may be easily secured to the lever.

Further features of our invention relate to arrangements and combinations of parts hereinafter described and more particularly pointed out in the appended claims.

A preferred form of our invention is Shown in the drawings in'which- Figure 1 is a sectional elevation of certain parts of a loom dobby, showing our improved lever in its operation position;

Fig. 2 is a side elevation of the lever and the attached hooks;

Fig. 3 is an edge elevation 'of the lever;

Fig. 4 is a sectional plan view of one end of the lever, taken along the line 1 -4 in Fig. 2'

Fig is a side elevation of one end of the lever when partially completed;

Fig. 6 is a collective view of one end of the lever,'one end of a hook, and the bushing which is used to connect the hook to the lever, and v Fig. 7 is an enlarged side elevation of the bushing.

Referring to the drawings, Fig. 1 shows or harness lever 11 pivoted to the frame atvv the point 12, a lifter bar 13, an indicator rod 14, upper and lower combs 15 and 16, upper and lower hooks 17 and 18, and a hook lever 19 pivoted at 20 to the jack 11.

designed'v l The Construction 0f lever 19 is clearly I' Specification of Letters Patent. Patented i: kpprmation filed aune 12, 1920. serial N. 388,600.Av

shown in Figs.y"2i,`.4y and 5. Each lever is made from a single piece of sheetmetal andv ispunched .or pressed out with lateral projections 21, 22 and 23, indicated in dottedl lines,A in Fig. =h2. The projecting portion 21 i iS bentover against vthe rmain, portionof' the l lever to form a bearing` of double thickness] for thei'pivo't l20, as indicated in Fig. l3. The

end projections22 andfarebent around'as I .1.; 1nd1'cated1nF1g. 4 to form Spacedbearing v portionsfor the bushings724 by whichthe hooks 17 and 18 aresecured to the'lever 19. It will be noted that the portions22 and 23 are'bent along the" same longitudinal edge l of the'lever 19 but that they are disposed on opposite sides of the lever for convenience in assembling the dobby.

Openings 25 extend through the Separated end portions of the lever and one of .the openings at each end is also provided with a notch 26. The hooks 17 and 18 are similarly provided with openings 27 also having notches 28. Each bushin 24 is formed to lit the openings 25 and 2 and is provided with a lug'or projection 29 fitting the notches 26 and 28. y

In assembling the parts, the hooks are placedin the dotted line positions shown in Fig. 2, with the notches 28 in the hooksl alined with the notches 26 in the levers. The bushings are then inserted and the lugs 29 are pushed through the notches 26v and lare positioned in the notches 28. The hooks arevthen swung around to the full line or operative position shown in Fig. 2, in which positions the notches 26 and 28 are out of alinement and the lugs 29 prevent axial displacement of the bushings. The parts are thus very easily assembled without the use of any tools and maybe as easily separated should occasion arise.

Asythe levers 19 rock against cross bars 30 and 31, (Fig. 1) when one of the hooks 17 or 18 is pulled to the right, it is desirf able' to round oif the eXtreme ends of the levers as indicated at 32 in Fig. 2.

Having thus described our invention, lit will be seen that a strong and dura-ble lever is provided that may be cheaply and easily constructed, and that an extremely simple and convenient connection is also provided for Securing the hooks thereto.

Having thus described our invention, it

will be evident that changes and modiications can be made therein by those skilled inthe art within the spirit and scope of our invention as set forth in the claims and we do not wish to be otherwise limitedv to the i details herein disclosed, but what we claim 1. A lever for a loom dobby comprising a single piece of sheet metal having spaced bearing portions at both ends of said lever, the two parts of each bearing portion being joined along one edge only and having a U-shaped transverse cross-section, and said connecting edges being disposed longitudinally of said lever.

2. A lever for a loom dobby comprising aY single piece of sheet metal bent to form a center bearing of double thickness, and end bearin each having an oil-set portion, said o -set portions being disposed on opposite sides of said lever and being joined to thebody of the lever along a single edge extending longitudinally of said lever and at the same edge thereof.

3. In a dobby, a lever having spaced bear ing portions with alined openings therein, one of said openings having a notch, a dobby hook having a corresponding notched opening, and a bushing for said hook fitting said several openings and having a lug adapted to pass through the notch in said lever and to be received in the notch in said hook, said notches being out of alinement when the hook and lever are disposed in operative relation.

4. A lever for a loom dobby comprising a single piece of sheet metal having spaced bearing portions at both ends of said lever, the two parts of each bearing portion being joined along one outer edge only.

In testimony whereof we have hereunto aixed our signatures.

WILLIAM H. NEEDHAM. NORMAN J. VILE.

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