US78341A - Improvement in wood-turning lathes - Google Patents

Description

@eine Vfaire @attrat- @frn Leiters Patent IVe. 78,341, dated jlag/ 26, 1868.

dlige .slgetule referat it in tlgese ettets aiieiit mit mittag tutt tt tige smut.

TO ALL WHOM 1T MAY OONOERN:

Be it known that I, A. J. VAN ORNUM, of Hartford, in the county of Windsor, and State of'Vermont, have v invented a new and useful Imprvcment in Lathes for Turning Wood; and I do hereby declare that the following is a. full', clear, and exact description thereof, which will enable others skilled in the art to make and luse the same, reference bei-ng had to the accompanying drawings, forming part of this speciiication, in which- Figure 1 represents a side elevation of acentreYY of the mandrel of a turning-lathe, and a. longitudinal section of the socketed sleeve.

Figure 2 Vis a front end view of the centre" and socketed sleeve.

Figure Sis a sectionon the line x :v of iig. 1.

Similar letters of reference indicate like parts.

The nature of my invention relates to improvements in w'oodturning lathes, whereby it is designed to provide a more simple and efficient apparatus for use in turning rake, fork, broom, and other similar handles.

Iteonsists in providingl a sliding sleeve on the mandrel of the lathe, having a square socket in one end, which, in combination with the spurs in the end of the mandrel, serves to hold the shaft of woodrwhile it is being turned from the other end by the sliding tool oi'ordinary construction, until the'said tool comes in contact with the ond ofthe said sleeve, when the latter will be shoved back by the tool, whereby the whole length of the shaft may beturned, as will be more fully described on reference to the accompanying drawings.

A represents the centre of a lathespindle, and is provided with the usual centre spur a and the small eoclreted spur a, and a spl'ein, I).

'il represents a sleeve, tl-ed to the said centre, so as to rotate with it and slide thereon, and is provided with a square socket, B', in the front end, and the annular groove C, the object `of which is to assist the spurs in holding the blank shaft ofwood which is to be turned. When the spurs are used alone they are liable to split the end ofthe blank, and as socketed centree have been heretofore used, they have prevented the tool from passing over the end ofthe blank, thereby wasting a considerable portion ofthe same.

In the use of my invention, I provide a crotchedrod, which is hinged to the floor', under the sleeve B, and arranged so that the upper crotched end takes into the annular groove C.

To the said rod, at any convenient point, I fasten a cord, which I pass over a pulley, and fasten the other end to u. weight, and arrange the same so as to draw the sleeve towards the tail-stoel: of the lathe. When the blank, which has been previously squared on the end, has been centred in the lathe, the sleeve is slipped onto the seid square end, which is usually made large enough to bind in the socket.

The lutter, with thespurs, holds it while being turned up from the other end, as is Well understood;

provide a pin on the stock of the sliding cutter, so arranged that when the cutting-tool arrives near to the sleeve, the said pin will strike the sleeve o1' the crotchod end, and push it away from contact with the blank, which permits the cutters to turn the said bla-nk tothe end, whereby a considerable amount of material is saved, and the loss of time required in sawing off the otherwise unnished part. i

The sleeve may also be held in contact with the blank by a spring arranged behind it, as will be Well understood. Aaingd, on the end ofthe centre, prevents the sleeve from sliding oft'.

Having thus described my invention, I claim as new, and desire to secure by Letters Patent-* The sleeve B, having a square socket, B', and adapted to rotate with-and -be movedV longitudinally upon the centre A, substantially as and for the purpose herein set forth. Y

The-above specieation of my invention signed by me, this 24th day of March, I868.

, A. J. VAN ORNUM.

Witnesses:

OHAS. II. TENNEY, BENJAMIN BUTTON.

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