US555329A - Apparatus for controlling the grinding of flats of carding-engines - Google Patents

Description

(No Model.)

J. 2 Sheets-Sheet 1.

APPARATUS FOR CONTROLLING THE GRINDING 0P FLATS 0P GARDING ENGINES.

No. 555,329. Patented Feb. 25, 1896.

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J. E. PREST. APPARATUS FOR CONTROLLING THE GRINDING OI FLATS OF GARDING ENGINES.

No. 555,329. Patented Feb. 25, 1896.

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lJNiTED STATES PATENT OEEicE.

JOHN E. PREST, OF COHOES, NEW YORK.

APPARATUS FOR CONTROLLING THE GRINDING OF FLATS F CARDlNG-ENGINES.

SPECIFICATION forming part of Letters Patent No. 555,329, dated February 25, 1896.

Application filed October 1,1895. Serial No. 564,273- No model- To all whom it may concern:

Be it known that I, JOHN E. PREST, a citizen of the United States, residing at Oohoes, county of Albany, and State of New York, have invented certain new and useful Improvements in Apparatus for Controlling the Grinding of Flats of Carding- Engines, of which the following is a specification.

The. invention relates to such improvements; and it consists of the novel construction and combination of parts hereinafter described and subsequently claimed.

Reference may be had to the accompanying drawings, and the letters of reference marked thereon, which form a part of this specification.

Similar letters refer to similar parts in the several figures therein.

Figure l of the drawings is an end view in elevation of my improved apparatus in position for use. Fig. 2 is a side elevation of the same with one end broken away. Fig. 3 is a vertical cross-section taken on the broken line 3 3 in Fig. Fig. a is avertical section of the grinding-roller bearings, taken on the broken line L A in Fig. 1. Fig. shows a modiflcation. Fig. 6 is a vertical cross-section taken on the broken line 0 6 in Fig. 5.

For a fuller description and better understanding of the invention which forms the subject-matter of this application reference may be had to the drawings and specification of United States Letters Patent No. 519,771, issued to me May 15, 1894.

In my patented apparatus the flats of the carding-engine were successively carried, by a sliding grinding-block, past a grinding roller rotary in stationary bearings in such a manner that the teeth of the inclined fiat were uniformly engaged and ground by the roller.

In the apparatus which embodies my present invention the flats are successively moved along a stationary and horizontal slideway and the bearings of the grinding-roller are automatically moved toward each inclined flat as it passes the roller, whereby the teeth are uniformly engaged and ground by the roller, as will be hereinafter more fully de scribed.

Referring to the drawings, A is abifurcated bracket-frame, which supports in one and one end of a lever A by means of the pivot A contained in the elongated opening or bear in g A in the bracket-arm. The other end of the lever is supported by the cam-shaft A rotary in bearings in the other bracket-arm, the cam A fixed on the cam-shaft, being rotary in an aperture in the oscillatory end of the lever A. The lever A supports intermediately of its ends the bearing-box A adjustable vertically by means of the adjustingscrew A which supports the box in the vertical slideway A in the lever A. The grinding-roller B has one of its end journals B supported by and'rotary in the bearing-box A. The other end journal of the roller is sup ported bylike mechanism. (Notshowu) Rotary movements of the cam-shaft in opposite directions will impart an oscillating movement to the roller-supporting levers, and approximately vertical movements to the bearingboxes and roller.

As a means for operating the cam-shaft, I provide the same with a rock-lever B fixed on the shaft and controlled by the spring B The rock-lever is actuated by means of the hook B pivoted at one end upon the lower end of the rock-lever and provided at its other end with the catch or offset B adapted to be successively engaged by each of the moving flats B as their teeth engage the roller.

The flats are connected by chain 13 (shown in part only) in the usual well-known manner and ride along the track 15 until they strike the guide 0, which forces them successively up against the stationary slideway-guide O, the guide C being actuated by the weight C and controlled by the adjustable stop 0 The operation of the apparatus is as follows: The flats, being carried in the direction of the arrow by their connecting-chain in the usual well-known manner successively into engagement with the weight-actuated guide 0, are forced by said guide upward until their beveled ends strike the stationary slidewayguide 0, which maintains all the flats in engagement therewith in the same horizontal plane and at the same angle of inclination. The hook is so formed that its catch is engaged by each flat just as the fiat engages the roller. As the flat advances, it carries the hook with it, thereby actuating the cam-shaft and cam to depress the roller-supporting levers and lower the roller just fast enough to flat as it passes beneath the roller.

engage the successive teeth on the inclined As the fiat passes the roller, the inclined nose C on the hook engages the stop G fixed on the stationary slideway-guide, and gradually lifts the hook until it disengages it from the fiat after the grinding of that flat is completed. The controlling-spring immediately restores the parts to the position shown in Fig. 1, the ground fiat passing on over the cut-away or depressed portion of the weight-controlled guide, when it is supported by the track B By varying the adjustment of the bearingbox A I am able to vary the amount which the apparatus will grind from the teeth in one operation of grinding and to compensate for wear of the parts, and I am also able by my improved apparatus to secure very great uniformity and precision.

I11 Figs. and 6 I have shown the lever D which supports the grinding-roller bearings pivoted at one end to one arm of the bracket D, and at its other end bya loose pivotal connection to one arm D of an angle-lever pivoted upon the other arm of the bracket. The angle-lever is controlled by a spring D and its other arm D is adapted to be connected withaflat-engaginghook. (Not shown.) The pivotal connection between the lever D and the angle-lever comprises a stud D", loosely rotary, and movable longitudinally in the slot 1) in lever D, and having a screw-threaded stem D integral therewith and separatedtherefrom by an integral flange D The threaded stem is inserted through an elongated slot D in the angle-lever a-rm D along which slot it is adjustably movable, and secured therein by the nut D and fiange'D A uni-form movement of the anglelevercan be made to impart varying movements to the roller-supporting lever by means of the adjustable pivotal connection shown, the adj ustment being accomplished byloosening the nut D and sliding the stud and threaded stem along their respective slots toward the pivot of the angle-lever to diminish the movement of the roller, and from said pivot to increase the movement of the roller. The pivotal connection is locked in its adjusted position by tightening the nut D That I claim as new, and desire to secure by Letters Patent, is-

1. In an apparatus for controlling the grind ing of flats of carding-engines, the combination with a stationary slideway for the flats, of a grinding-roller rotary in a bearing-support pivoted at one end and oscillatory toward and from the slideway, and flat-actuated mechanism for imparting oscillating movements to the roller-bearin g support, substantially as described.

2. In an apparatus for controlling the grinding of flats of carding-engines, the combination with a stationary slidewayand means for moving the flats successively along the slideway, of a grinding-roller, roller-supporting levers, lever-actuating cams, and means for operating the cams, whereby the roller is moved toward and from the slideway, substantially as described.

3. In an apparatus for controlling the grind ing of flats of carding-engines, the combination with a stationary slideway, and means for moving the flats successively along the slideway, of a grinding-roller, roller-supporting levers, lever-actuating cams, a spring-controlled, cam-actuating lever, a flat-engaging hook pivoted upon the cam-actuating lever and provided with an incline, and a hook-releasing stop in the path of the hook-incline, substantially as described.

In testimony whereof I have hereunto set my hand this 28th day of September, 1895.

JOHN E. PRIEST. lVitnesses:

FRANK O. CURTIS, J. G. CURTIS.

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