US74124A - Chusetts - Google Patents

Description

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EZEKIEL PHILLIPS A'ND HENRY C. PHILLIPS, OF BLACKSTONE, MASSA- CHUSETTS, ASSIGNORS TO THEMSELVES AND 'DANIEL B.v lOND.

Letters y.Patent No. 74,124, dated February 4, 1868.`

IMPROVEMENT IN PICKER-STAFF CHECK POR LOOMS.

TO ALL PERSONS TO WHOM THESE PRESENTS MAY COME: 4

Be it known that we, EZEKI'EL -PIIILLIPS and HENRY C. PHILLIPS, of Blackstone, of' the county of Worcester, and State of Massachusetts, have made a new and useful Improvement in Looms for Weaving; and do hereby declare the same to be fully described in the following specification, and represented in the accom. panying drawings, of whichy l Figure -ldenotes a. frontelevaton of our, invention, as applied to the lay and picker-staves of a loom.

Figure 2 is an end view, and

Figure 3 a transverse section ot' it.

(Figures Land 5 are hereinafter described.)

The purpose of our invention is to prevent, after each throw of the pickerwor itsstaii, any improperd'on ward motion of such picker or its stal?, such as to prematurely advance the shuttle. Our invention also enables the stoppage ofthe picker or its stall' to be gradually etiected, so'as to prevent injury thereto.

A premature advance of the picker or its stal is likely to correspondingly advance the shuttle, from which` advance serious accidents are liable' to take lplace, in consequence ofthe shuttle being protruded into the shade` of the warps. Again, a gradual stoppage of the picker isV desirable, to prevent the cap, or a portion thereof, from being thrown olf the spindle of the shuttle. I

In carrying ont our invention, we combine with the lay A and its two picker-staves, a friction-apparatus, of the kind hereinafter explained. 'At'or near the middle of the lay A, and below the race-beam a thereof, we arrange, in a bearing, Zw, a. friction-roller or-cylinder, c, and hold the same in place by e. brake-cap or cover, d. This cap we support on springs e e, which rest on washers ff, that in turnare sustained on and by two screws, g gp'which go through the washers and springs,and screw p into the lay. Fromthe friction-cylinder-c an arm, L, extends downward, and terminates in an eye, which is connected withtwo bent levers B B, hinged to the lower side of the lay, and arranged at or near the external termini of the vibratory movements of the two picker-Steves D D, which play within `the lay,'and extend therefrom in the ordinary manner. Each of the levers B B, we maire ot' wire, bent `in manner and covered withleather as represented in the drawings, and we connect them with the lay by leather loops z'z', fastened thereto. Each of the rods k 7c, by which the said levers andthe arm of the friction-cylinder are conjoined, we connect to the.said arm and the lever by leather loops lm. One of such pair of the said 'loops we connect to its rod It', by means of a clamp-screw, m', and anut, n, the latter going through the loop and an eye formed on the rod, the eye being within the loop, and the latter vhaving a slot, o, made lengthwise in it to receive the shank of the clampfscrew. i i

Figure 4 is afront view,

Figure 5 a longitudinal section, and' Figure 6 a. transverse sectionof the connection ofthe rod c.

The clamp-screw and nut, with the slot in the loop, enable lthe connection between the leverB and the -arm of thefriction-cylinder to be either shortened or lengthened as circumstances may require. VDuring the retreat of each picker-steil', it will be thrown against the longer arm of the next adjacent lever, B, the movement of which, occasioned by the stad', will he overcome by the 'resistance of the frictiomapparatus, the staff being brought to a state of rest without any recoil, such as dtakes place when a spring is employed to overcome the momentum of the staff'. While cachrpickensta may be moving a lever, B, the other lever B will be in` corresponding movement, and will he set, ready for a. blow of the other picker-staff.

By applying the friction-*cylinder-hox cap to the lay, -by means as described, the degree or amount of friction or resistance that may be required to overcome the momentum of the picker-staff can be readily obtained. l We claim the friction-apparatus, substantially as described, that'is, as composed of the levers B B, the friction-cylinder and its bearing and cap, and the connection of such cylinder and levers, as specified.

We also claim the combination of the friction-apparatus, substantiallyasdescribed, or its equivalent, with the' lay and its pickers, or picker-stoves, the whole being arranged and so asto operate as and for the purpose as explained. i p

EZEKIEL PHILLIPS, HENRY'C. PHILLIPS. `Witnesses:

WILLIAM M. KIMBALL, SILAs A. Bimenes.

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