US100575A - Improvement in loom-cams - Google Patents

Description

@anni @Mira encuen o. WIGKERsoF LAWRENGE, AND-monash. MCGLARY, or NRTH n ANDOVER, MASSACHUSETTS.-

Leam Patent No. 100,575, dated March 8,1870.

rMPovnMnN'r 1N Loom-CAMS.

The Schedule referredv to in these Letters Patent and making p'art of the same.

.l We, GEO. O. WIcKERscf Lawrence, and THOMAS J MCGLARY, of VNorth Andover, both infthe county of Essex,`anrl State of llIassac-husetts,'have invented `certain Improvements in the Construction of Gams for Working the`Heddles of Looms, and for other similar purposes to which such cams may be applicable, of which the following,with the accompanying-drawings, is a` Specification.

Nature and. Objects of Ythe Invention.

Our invention relates to the construction of the series of cams which 4work the heddles of looms, so that they may be readily changed when it i'srequired toV change the igure ofthe weaving,'without being obliged v Vout removing the hub or central portion from, the shaft or from the loom. t. f In the manufactures in which fancy weaving is employed,the changing of the heddle-cams is frequently necessary, and to do this inloomsas usually constructed itis necessary to take the cam shaft ont of the loom,

y remove its cams and put orrothers, and then put the shaft back again and adjust it. As .the looms are usually placed close to e'ach other in a factory, this is very inconvenient, and it is in any case a very dirty h and unpleasant job.

Description. In the drawingsi x, Figure l is a side elevation of a set of four cams, as

used for weaving four-leaf tweed.

Figure 2 is an 4end elevation ofthe same Figure 3 is a longitudinal section of the same on the line :c :v of fig. 2; and

Figure 4 isa transverse section on the line y y of fig. 1.

A A, &c., are the several cams made of the usual external form, and B is the hub or quill upon which all the cams are arranged in their proper order to Work the heddles, and to which they are securely attached, as is shown. t

This quill may be xed upon the shaft C, and revolve with it, or turn loosely upon the shaft and receive its rotary motion from a separate gear attached'to the quill, as is shown by the dotted lines at D, in a manner similar to what is usually done in looms when a separate cam shaft for the heddlesV is used. y Y.

E is a flange iixed to the quill, to which the outer cam on on'e side is securedv by a bolt, a, and F is a movable angeupon the opposite side of the, cams, which. is secnredto the quill by set screws b b, and to the outer cam next to it by the bolt c.

The cams are secured to each other by the Abolts d and the dowcls and sockets e.

The exterior ofthe quill is turned truly cylindrical, and the part of the cam which embraces it is bored to it it nic'ely, and the inclined surfaces of the cam are made to approach the surface of the quill tangentially, as shown, to give an easy motion to the heddles. Theonter part of the camsv is made of the usual form.

By this Inode of construction as many cams in a set may be used as may be desired, and they 'may be changed by loosening the flange F and removing the bolts a, c, and d, when they can all be slipped otf from the end of the quill and removed from the shaft with freedom. Another set of cams of any required number and order of arrangement may then be put onto the quill by a reversed operation and movable flange F brought close up to them and ysecured to the quill by the set screws b, and the cams secured to each other and to the flanges'E and F by the bolts and dowels, as before described.

Thus the quill B` serves as the central part of all the lcams used in the set, Whatever may be their number or relative position to each other.

We claim as our invention- The combination of a series of cams, A, with the quill B and the flanges E and F, for connecting the vseries with the quill, substantially as described. 1

Witnesses:

Gao. R. ROWE, H. P. GHANDLE.

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