US12225A

US12225A - Joseph welsh

Info

Publication number: US12225A
Authority: US
Publication date: 1855-01-09
Anticipated expiration: 1872-01-09

Description

JOSEPH wELsH, 0F PHILADELPHIA;PENNSYLVANIA.

LOOM.

Spnecication of Letters 'Patentf No. 12,225, dated January 9, 1855.

To all whom, may concern;

Be it known that I, JOSEPH WELSH, of the city of Philadelphia and State of Pennsylvania, haveinvented a new and useful Improvement in Looms; and I lClo-hereby declare that the follow-ing is afull, clear, and

exact description of the yconstruction and op-A eration of the same,- reference being had to the annexed drawings, making a Lpart of this specification, in whichvFigure 1 is a perspective view of the' layl of a loom,I with the improvement applied ;v `and Fig. 2, a sectional plan ,view of the same-like letters indicating like parts when on both igures.-

The nature' of my inventionconsists in the application yto the lay of those looms re-j quiring or having a moving shuttle box, a periodically moving lever, constructed and combined so that it `shall act as an elastic picker stopper, and then move atits upperl end so as to allow the picker to follow in contact therewith, and so, be entirely relieved from Contact with the point of the shuttle immediately on the rising or falling of the shuttle box.

As my invention relates particularly only to the operation of the shuttles and picker, a representation of the combination of the lay, shuttle box and picker, with the inven tion and shuttles is all that is required in the drawings.

A is the moving shuttle box, as usually applied to the lay; and is shown in the drawings as adapted for two shuttles (B and C.)-]t is made so as to slide up and down in the usual manner, being connectedwith a cam, by means of the rod (a).

D, D,'are the spindles, or guide rods upon which the picker is caused to vibrate by means of the usual picker staff1 and cords in connection therewith and with the usual spring lever (F).

G is a lever which is placed within a mortise (C) in the lower bail of the lay, so as to be `capable of being oscillated upon its fulcrum (0,) by the alternate action of a spiral spring (d) and a small metallic plate which is fixed upon the inner side of the shuttle box so as to form two inclined planes, meeting in a point, with a stop at their base, as shown in the drawings; and placed so that both planes may alternately be borne against. by the spring lever (G) through the medium of the small stud or pin (g) which is fixed in and projects perpendicularly from the upper end of said lever, across the planes of the block so as to slide upon the said planes as the shuttle box is moved up and down; and so that `the picker (E)v may be caused to bear against the upper-edge or face of this lever (Gr)- from the posi-tive action of its `spring lever (F)and also so that when the picker vis struck by thereturning shuttle, it may, with the said lever-(G) yield back slightly, and immediately afterward, on the rislng orv falling motion of the shuttle box (A), be moved by the action, and tothe end of one of the inclined planes ofthe block (f) which is fixed t-o the moving shuttle box and in contact with the projecting pin (g) as before described, and then return upon thevother plane, to receive the blow upon the pickerfro-m the next returning shuttleas shown in the drawing.

The object ofthe stop at the base of Yeach plane, is to arrest the motion of the lever (G) at the proper place, and prevent its escape from contact with the block.

The operation' of my invention will now readily be perceived.

During the operation of a loom to which it is attached, the returning shuttle striking the picker (E) which being in contact with the upper end or face of the spring lever (G) causes it to yield slightly (thus deadening or easing the blow of the shuttle and preserving the picker from rapid wear) Awhen the lever, instantly recovering its position, the shuttle box comlnences to move, and one of the planes of the block (f) thereon, being in contact with the projecting pin (g) the upper end of the lever (G) is necessarily forcedalong the plane, and the picker following in contact therewith under the action of its spring, is necessarily also separated from the point of the arrested shuttle, which is thus allowed to be moved by the box, freely, up or down, as the case maybe, and the other shuttle brought in proper position before the picker as the upper end of the spring lever (G) returns upon the other plane, and is arrested by the stop. When more than two shuttles are used, the number of the inclined plane blocks are to be cor-- down through a mortise in the lower ball of the lay, near the end of the boX, and to receive its oscillatory motion by means of like or similar planes, fiXed immovably upon the lever (Gr) or upon the ball or other suitable part of the lay, as may be found most suitable.

It will be apparent also that the principle of the present invention can be applied in several other ways-as it consists in making the picker the intermediate stopper of the shuttle, while being supported during the blow of the shuttle by a momentarily yielding device which afterward recedes sufficiently to allow the picker to become released from contact with the point of either shuttle, allowing its subsequent free motion, up or down, with the containing boX. On the 3rd of October last, Letters Patent were granted to me for a certain improvement on looms of this character, consisting of a periodically moving shuttle stopper, acting so as to receive directly the blow of the shuttle, thus relieving the picker entirely, which invention, though eiecting the purpose admirably, is objected to by some loom makers, on the ground of greater cost in construction and application, in comparison with the cost of the present invention.

It will be perceived that the present invention is much moresimple and inexpensive in construction than my former one. I can construct and apply it for about one fifth of the cost of my former invention, while itwill answer the purpose of preserving the picker from rapid destruction, and also allow equallywell the free motion of the shuttles up and down with the box.

Having thus described the construction and operation of my invention, shown its advantages, and also pointed out other modes in which I contemplate its application, I proceed to state that I do not confine my claim to the precise construction and ar