US129705A

US129705A - Improvement in lathe-chucks

Info

Publication number: US129705A
Authority: US
Publication date: 1872-07-23
Anticipated expiration: 1889-07-23

Description

' (L -ARCHER. Irnproverrrent in Lathehucks.

I Patented July 23,1872.

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UNITED STATES OOENELIUs AEOHEE, OE nELsONvILLE, OHIO.

IMPROVEMENT IN LATHE'QHUQK Speciication forming part of Letters Patent No. 129,705, dated July 23, 1872.

Specication describing va new and useful i Improvement in Lathe-Chucks, invented by `chuck adjusted for turning pieces having a hole formed through them, parts being broken away to show the construction. Fig. 2 is a side view of the same adjusted for holding columns, half and quarter columns, parts being broken away to show the construction. Fig. 3 is a face view of one of the parts shown in Figs. land 2. Fig. 4. is a detail sectional view of a part of the'same taken through the line'ww, Fig. 1. Fig. 5 is a face view ofthe same. y

Similar letters of reference indicate corresponding parts.

.My invention has for its object to furnish an improved lathe-chuckv for holding pieces having different-sized holesformed through them, and for holding columns, half and quarter 'columns While being turned or polished, Without the necessity lof gluing, and

`which shall besimple in construction, convenient in use,'an`d effective in operation 5 and it consists in the construction and combination of the'various parts as hereinafter more fully described.`

. A is a holder, the stem of which is designed to be inserted in the lathe-mandrel,

and the head of ywhich is made cylindrical to enter the hollow base of the cone B, and has y -inclined lugs al formed upon its outer surface to interlock With corresponding lugs b formed upon the inner surfaceh of the hollovsr base of the cone B, so that the said cone B may be carried around with the saidholder A, in its revolution. 'The cone B is designed to Venter the hole in the piece to be turned or polished, Whatever may be the size of the said I hole. To the side of the cone B is attached a blade, C, to prevent the piece from-turning While being operated upon. D is a cone to receive and hold the other end of the piece to beturned or polished. The cone D is sWiveled to its stem E by a set-screw, F, which enters a groove in the said stem E, as shown in Fig. l. The stem E is designed to be inserted in the tail-stock of the lathe. The forward end or face of theholder A is made With a ilange, a2, around its edge to prevent the pieces from ilying apart while being operated upon. The face of the holder A is also provided with cross-anges or blades a3 to adapt it for holding half and quart-er columns whilev being operated upon.V When turning or polishing solid pieces the ange a2 and the cross-ilang`es or blades a3 are designed to be let into the piece to be held. G is a holder designed to hold the pieces to be operated upon, and which is made with a flange, g', around its face to prevent the pieces from iiyin g apart. The stem of the holder Gr is designed to be inserted in the tail-stock of the lathe. By this construction of the holders no gluing Will be necessary toV keep the pieces together While being operated upon.

Having thus described my invention, l claimv as new and desire to secure by Letters Patenti The cone B having blade C combined with holder A having inclined lugs a1, circular ange a2, and cross-anges a3, as and for the purpose described.

v CORNELIUS ARCHER.

v Witnesses:

VEGHEL ARCHER, WASHINGTON ARCHER.