US58989A - Improvement in machines for stripping the top flats of carding-engines - Google Patents

Description

,UNITEDA STATES. PATENT OEEICE.

S. L. CROCKET'I ANI) BENJAMIN T. MILLS, 0F LOW'ELL, MASSACHUSETTS.

IMPROVEMENT IN MACHINES FOR STRIPPING THE TOP FLATS 0F CARDING-ENGINES.

Specification forming part of Letters Patent No. 58,98), dated October 93, 1806.

To all whom it may concern:

Beit known that we, SELnoN L. CRoeKnTr and BENJAMIN T. MILLS, both of Lowell, in

Ythe county of Middlesex and State of Massachusetts, have invented a new and useful Improvement in Machinery which is used for Stripping the Top Flats of Carding-Engines; of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, making part of this specification, in which- Figure l is an end elevation of a cardingengine which has a stripping apparatus applied thereto. Fi gui! is a side view ofthe same. Fig.3 shows the working side of our improved lifting and replacing cam, with the position ot' the stripper-arm F and yoke T as shown in red lilies. Fig..4 shows a vertical central seetion 0f the stripper-arm F, the cani WI, the movable slide h, and lifting-pins l and 2, one guide-pin, t', a portion of one top iiat, b, and a lifting-jaw, lr, all et' which pertain to the said carding-engine. Fig. 5 shows the working side ot' one of our improved cams, full size,for practice with the lifting-pins in different positions around the grooves of the cam. Fig. (i is a central section ot' said cam. Fig. I is a plan, and Fig. 8 a vertical central section, of one of the movable slides,\vith thelii'ting-pins connected therewith. Fig. t) is a side view of a lifting-jaw.

Our invention consists in the employment of a lifting and replacing cam, so formed and arranged as to lift the top Hats of cardingengines, perform a positive depression of said.

top flats onto the strip-card, and replace them in their proper positions without the aid of depressing-springs or other similar device arranged to bear the top flats down when the stripping is performed; and the said cam may be turned backward as well as forward without breaking or injuring any ofthe machinery.

The card-cylinder A rotates on bearings at the center ofthe top girts B of the frame, which are supported by `posts C at each corner. A metallic arch, D, is secured by bolts through the feet a of the arch to the top girts B. The top flats b are arranged on the outer surface of these arches, and are movable from and toward the center of the shaft E of the cylinder A, upon which shaft stripper-arms F, at each side of the engine, are made to move at intervals forward and back by means ol' a gear, e, working into a mangio-pin segnlent, G, secured to the outside ot' each ot the arches l).

The gear c receives motion from a segmental gear, II, on the outer surface of the cam W', (shown in Fig.I,) through the tumbler-gourd, secured to the same shaft.

The segmental gear-cani and full gear J are driven by an intermediate gear, c, connected with another intermediate gear,f, which receives its motion from the gear g, on either end of the top shaft, I'I; and a belt ruiming from the pulley M, on the shaft E of the cylinder A,onto the pulley L, on the top shaft, II, drives the whole stripping apparatus.

In the machinery for stripping the top flats et' earding-engines patented by George .Vt-llxiiail, of Lowell, Massachusetts, January 27, 1857, all of the above -described apparatus is used, and the said Wellman employs` a lifting and replacing cani consisting ot several detached ilangcs or projections cast upon the surface of a plate. Said tlanges are made to operate a slide having four pins secured thereto. r)Shree of the pins are acted upon by the detached iianges to lift and replace the top flats, and a spring secured to the under side of the cross-stay m on the top ends of the stripper-arms F is designed to depress the top thits onto the strippercard and cause it to strip the top tlats clean. The fourth piu on the slide is intended to guide the first or outer pin outside of one of the detached tlanges in replacing the top tlats, but the outer pin sometimes passes inside of the said flange, and then the tlange or pins are broken. This cam, having detached tlanges, can turn only one way, and in the attempt of unpracticed operators to turn the stripper back, in order to strip the main cylinder, the detached iian ges are frequently broken ott', which spoils the whole cam, so that a lifting-cam, strippingcam, and gear have to be replaced, being all connected.

1n the drawings, Fig. 5 represents the precise form of our improved cani, with the two lifting -pins l and 2 in different positions around in the grooves 1t and I of said cam, as indicated by Figs. l', 2', to 8'.

Our cam begins to lift the top Hat on pin l, in position l', and as said piu moves outward on the continuous flange 13 the pin 2 passes inside of a prominent point,66,and catches on the point 14 ot'the inner aange, N. Pin l passes outside ot" and above the edge of the cam, and piu 2 around in the groove P, and when the lifting-pin 2 passes from position 4 to 5 said pin is moved downward by the otiset y, forcing the slide,ja\v, and one top flat with which the jaw is engaged down onto the strip-card, thus performing a positive depression ot' the top fiat at each stripping operation.

Suiiicient time is had, while the pi n 2 is passing from the offset y to the point 15 on the iiange N of the cam, for the strip-card to be withdrawn from beneath the top Hat, and said flat begins to fall as pin 2 passes point 15, and continues to fall until pins 1 and 2 are nearly to that point indicated by position 8', from which point or position to position l the stripping device is moving from one top flat to another.

In order to strip the main cylinder A, it is frequently necessary to lose considerable time in Waiting for the apparatus to work its way over to one side of the engine; but bythe use ot' our improved cam the stripping apparatus can be moved backward by reversing the motion ofthe cam and turning the stripper back to the point desired, without injuring the cam or the liftingpins, or any part ofthe machinery, as the peculiar form ot' said cam admits ot' its being turned backward quite as easily as tor- Ward.

Fermin our improved cani with grooves R and I and continuous flanges 0,8, and N precludes the possibility ofthe lifting-pins l and 2 getting out of place.

All the curves of our improved cam are important and cannot well be el1anged,and some prominent points and curves cannot be chan ged at all Without spoiling the operation of the cam. The point 22 on the outer portion ofthe double tlange S,and tbe point 6G on the inner portion of the opposite end of said tiange, the point 33 on one extremity of the flan ge O, and the point 44 on one extremity of the ange N are absolutely necessary in reversing the mot-ion of the cam to turn the stripper backward. The point 55 on one extremity ofthe fiangeO guides the pin l properly in replacing the top Hats after the stripping has been performed, and, making that portion of the ange S between l() and l0 continuous, is also necessary', to guide the pin l past the point 22, and prevent the pins l and 2 dropping too suddenly or in any way getting out of place.

We do not claim the machincr f for stripping the top flats ot' cardingengines, nor the lifting cam or cams used by G eorge NVelhnan or Horace Woodman; but

ie do claim as follows:

1. In the machinery which is used for stripping the top iiats of earding-engines, the ein ployment of the lifting and replacing cam, formed substantially as herein set forth and shown, and arranged to operate in the manner and for the purpose specified.

2. In combination with the lifting and replacing cam, formed and made to operate as herein set forth, the two pins l and 2 in the slide la, acted upon by the cam in the manner and for the purpose specified.

SELDON L. CROCKE lT. BENJAMIN T. MILLS. In presence oil- J oHN E. CRANE, J. S. XVIHTNEY.

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