US99696A - Improvement in wood-turning lathe - Google Patents

Description

dinard gratta @sind chipre.

NATHAN Nolens, CHAHLHs s. BLACK, AND HORACE s. BLAcK, or BH- CHANAN, MICHIGAN.

Letters Patent No. 99,696, dated February 8, 1870.

The Schedule referred to in these Letters Patent and making part rf the same.

To whom 'it may conce/rn.:`

Be it known that we, NATHAN Nonnrs, CHARLES' S. BLACK, and HORACE S. BLACK, ot' Buchanan, in the county of Berl-ien, and State of Michigan, have invented a. new and useful Improvement in Gauge-y Lathes; and we do declare that the bllowiugis a true and accurate description thereoreference being had tothe accompanying drawings, and to the letters of reference marked thereon, and being a part of this specification, in whichc Figure 1 is a perspective View of our improved lathe; Figure 2 is a cross-section, on the line a; x, in iig.

J, showing' the mechanism for moving the vibrating for turning bedposts, table-legs, balusters, and other like articles, ii'om bolts of wood, and consists in the employment ot' a cutter, or series of cutters, corrugated to the form of spindle designed to be turned, and bolted to a cutter-bar, pivoted in a vibrating frame; in a mechanism for lniugiug the cutters up to the bolt centred on the spindles, in a series of steadyrests which automatically move up with the cutters, and support the spindle being turned, and'in the general arrangement oi' its parts, as hereinafter more fully shown and set forth. In the drawings- V v A represents 'the bed-plate of our lathe, supported 4 4by proper standards, a., and lmving attached at either end the head-block B, and tail-block C, ot' ordinary construction; 1n the head and tail-blocks are placed the hcad-spindle b and .tail-spindle c, the latter being moved laterally in'its sleeve by a lever, D, ol other appropriate device.

Projecting from the front side ofthe head and tail# blocks' are brackets E, in which is journaled the rockshai't F, operated by a lever, @,to which a trea-dle may he attached, it' desired. The rock-shaft is also provided with upward-projecting arms G, and downward-projecting arms G'.

H is a vibratinglirame, pivoted in boxes g, in the bed-plate. In the upper corners of this frame ispivoted `a knife-bar, N, to which are bolted, in sections, corrugatedor curved cutters I, which are formed to the shape ot' the article to be turned. When it becomes necessary to sharpen the cutters, the vdogs J, which drop against the cutter-bar to hold it in place, are withdrawn, the cutter-bar is then swung up, and rests upon the ends ofthe dogs, as shown in tig. 3.

A throat-nomi, whose front edge is made to corrcspond with thecorrugations ot' the cutters, is secured to and projects inward from the cutter-trame H,for|n ing, with the cutters, a throat, through which the shavings pass. To determine the depth of cut on the ends ot' the cutter-bar, are brackets, through which pass set-screws j, abutting against the top of the frame H.

To steady the wood while being'turned, steady-rests K, tig. 3, are piroted to the frame H, and are operated as hereinafter described. i i

' L is a vibrating f1ame,pivoted in boxes, g', inthe same manner as 'the cutter-frame H attached to its.

top, 'and projecting inward, are secured inclined planes l, directly opposite the steady-rests K.

M are links connecting the arms G, of the rockshai't, with the top of the cutter-trame H, and M are similar links, connecting Vthe arms G with the top of the vibrating trame L. By depressing the .lever e .of the rock-shaft, the flames H and. L will move toward each other, the cutterscommencing to take a shaving from the bolt. A At the same tin1ethe cam-shaped ends oi' the steady-rests K, sliding up the inclined planes l, press against the under side of' thewood,l and support it until4 the axtiie is completed. VRa-ising the lever,'the tramcs recede fromeach other, when the finished article may be removed from the lathe.

Vhat we claim as our invention, and desire to secure by Letters Eatent, is

1. The cutters I, secured to thc knife-bar N, the

same being pivoted in the vibrating frame H, all the parts being constructed, arranged, and operating sub,-4

stantially as shown and described, and for the purpose' specified.

2. The combination of the bed A. with the head and tail-blocks B a'nd G, rock-shaft F, providedwith lever e, and cams G G-, links M M', the. vibrating frames H and L, the steady-rests K, and inclined planes I, when constructed, alrangedraml operating substantially as shown andl descrihethaud for the pur;

poses herein specified..

` NATHAN NORRIS.v

CHARLES- SfBLAGK. HORACE' IS. BLACK.

' Witnesses:

WILLIAM D. KINGERY, J osEPH Brass.

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