US473187A

US473187A - dobson

Info

Publication number: US473187A
Authority: US
Publication date: 1892-04-19
Anticipated expiration: 1909-04-19

Description

(No Model.) 7 3 Sheets-Sheet 1.

. B. AQDOBSON a; W. 1. BRO MILEY. MEGHANISM FOR GRINDING THE TRAVELING FLATS OF GARDING ENGINES.

N0. 473,187. Patented Apr. 19, 1892.

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(No Model.) 3 Sheets-Sheet 2.

B. A. DOBSON & W. I. BROMILEY. MECHANISM FOR GRINDING THE TRAVELING FLATS 0P CARDIN-G ENGINES.

No. 473,187. Patented Apr. 19, 1892.

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(NGModeL) 3 Sheets-Sheet 3.

B. A. DOBSON 85 W. I. BROMILEY. MECHANISM FOR GRINDING THE TRAVELING FLATS 0F GARDING ENGINES.

No. 473,187. Patented Apr; 19, 189 2.

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' UNITED STATES PATENT OFFICE.

BENJAMIN ALFRED D OBSON AND \VILLIAM ISHERl/VOOD BROIWIILEY, OF BOL- TON, ENGLAND, ASSIGNORS TO DOBSON & BARLOIV, OF SAME PLACE.

MECHANISM FOR GRINDING THE TRAVELING FLATS F CARDlNG-ENGINES.

SPECIFICATION forming part of Letters Patent No. 473,187, dated April 19, 1892.

Application filed November 13, 1891. Serial No. 411,820. (No model.) Patented in England September 9, 1891, No. 15,264-

To all whom it may concern:

Be it known that we, BENJAMIN ALFRED 'DoBsoN and WILLIAM IsHERWooD BROMI- LEY, both subjects of the Queen of Great Britain, and residents of Bolton, in the county of Lancaster, England, have invented certain new and useful Improvements in Mechanism for Grinding the Traveling Flats of Oarding- Engines, (for which we have obtained Letters Patent in Great Britain, numbered 15,264, bearing date September 9, 1891,) of which the following is a specification.

Our invention relates to improvements in mechanism for grinding the traveling flats of carding-engines with the wire downward, this being the position they occupy when at work upon the card; and the object of our improvements is to avoid the deflection existing when grinding in the usual way with ordinary appliances.

We attain this object by the mechanism illustrated on the accompanying three sheets of drawings, in which Figure 1 is a side elevation of a cardingengine, showing our improved mechanism for grinding the flats applied in two different positions. Fig. 2 is a side elevation, and Fig. 3 an end elevation, of the said improved mech* anism.

In Fig. 1, a designates the main cylinder; 17, the doffer; c, the licker-in; d, the bend or side framing; c, the chain of traveling flats, and f f the ordinary slides, which carry the bowl-shaft g and bowls upon which the flats travel as they enter upon or leave the flexible bend h.

Our improve-d mechanism for grinding the flats is illustrated by the detail views, Figs. 2 and 3, and may be applied to the carding engine in either of the positions shown in Fig. l-namely, at the licker-in end or at the doffer end, as may be most convenient. We will describe it as applied at thelicker-in end to the slide f, which is fitted in the bracket q, secured to the bend d. Upon the bowl-shaft g is mounted loosely a lever 2', in one arm of which is fitted a slide or intermediate piece j, the upper surface j of which is made, preferably, to the same radius as that of the flexi- 5o ble bend h, and the lower surface has a finger 7' working upon the curved surface 7a of a dummy or guide it. The dummy or guide is is centered upon a shaft Z, which is supported in an arm of the slide f, the position of which is regulated by the flexible bend h when applied to an engine of the type specified in Letters Patent of the United States granted to us, the said BENJAMIN ALFRED DoBsoNand WILLIAM IsIIERwo0D BRoMILEY, No. 361,815, and dated April 26, 1887. On the said shaft Z is also centered a lever m, in which is supported at one end the grindingroller n, and at the other end is suspended a weight 0 to keep the grinding-roller at up to its work, and, further, the lever m is connected to the short arm of the lever I by a coiled spring 19. At the back of the leverm is a threaded snug or projection m, in which is fitted a screw 1", the end of which supports the dummy or guide is, the weight 0 being suffi- 7o cient to counterpoise the dummy as well as the grinding-roller. On the arm of the slide f is an inclined surface f which forms a fixed stop for the corresponding inclined surface 7' on the slide or intermediate piece j.

v In operation the prepared working surface of each flat 6 comes in its turn upon the prepared surface j' of the intermediate piece j, the back of the flat being in contact with the bowl 8 on the shaft g. The weight 0 on the lever m, acting through the screw 1, dummy or guide It, and finger j presses the surface j of the slide or intermediate piece j upward against the working surface of the fiat. As the flat moves forward its edge engages the projection 3' at the back of the inclined surface 7' and so carries with it in its traverse the intermediate piece j and the arm of the lever 2', in which said piece is fitted, and also raises the other arm of the lever 1', thereby extending the spring 19. The finger 7' as it travels on the curved surface It, causes the grinding-roller n to approach or recede from the flat as the latter travels round the bowls, and so the wire is ground to the bevel required. WVhen the flat has passed over and left the surface of the grinding-roller n, the incline j on the piece j comes into contact wit-h the fixed incline f thus disengaging the flat and allowing the spring p to return the leverz' and intermediate piece j to their origi nal position ready for the next fiat.

Having now particularly described and ascertained the nature of our said invention and in What manner the same is to be performed, We declare that what we claim, and desire to secure by Letters Patent of the United States, 1s

1'. In a traveling-flat carding-engine, the combination, with the grinding-roller supported in a counterbalanced lever, of the dummy or guide 70, the slide or intermediate piece j, and the lever 2', centered on the bowlshaft, substantially as herein set forth.

2. The combination, with the grinding-roller and the guide-surface k both supported and kept to their work by aweighted lever, of the slide or intermediate piece j, one portion of which is prepared to receive the working" surface of the Hat and another is supported by BENJAMIN ALFRED DODSON. WILLIAM ISIIERWOOD BROMILEY.

iVitnesses:

ROBERT WINDER, SAML. BROMILEY.