US100164A - lymast - Google Patents

Description

waited 'tatee JOHN yN. LYMAN, or New YORK, N. Y.

Letters Patent No. 100,164, dated February 22, 1870.

IMPROVEMENT'IN CLAMP FOR STAY-LOG.

The Schedule referred to in thele Letten Patent annaking partei the same.

To allnuhom it may concern.-

Be it known that I, J ons N. LYMAN, ot' the city, county, and State oi'New York, have. invented a new and usel'ul .Improvement in Clamping Devicesl for Stay-Logs of`VeIIeer-Mallines, of which the following is a full, clear, and exact description, reference beingl had to the accompanying drawing forming part ofthis specilication, and in which- Figure 1 represents a longitudinal view ot' a staylog in part, with my improvement applied to it, and

Figure 2, a transverse section of the same through the. line a: :v in g. 1.

Similar letters of reference indicate -corresponding parts.

My improvement is especially applicable to a staylog of revolving character, as described in Letters Patent issued to me December 1, 1868; and

The invention consists in certain improved means or construction of parts for holding the timber on or to the stay-log, including a clip or clips for steadying the same, when of large size or growth, and till cut down or reduced by the operation ofthe machine.

Referring to the accompanying drawing- A represents the revolving stay-log, carrying on its face the halt' or other suitably-shaped part log or hurl B, to be operated on or cut up into veneer, hy lthe action of a stationary knife or cutter, vas thestay-log is made to continuously rot-ate and carry the part log past or over the cutter, the axis of rotation preferably being coincident with that ofthe log or tree, from which the part log B has been cut or prepared.

Said part log or bnrl lis secured on its fiatv side to the one side or face .of the staylog A, by screws a a, arranged to pass through flanges b b on opposite sides of the stay-log. These flanges are beveled on their outside faces, andthe screw-holes c c run ohliquely through them in converging directionsfrelatively to.

the wood, so that on entering the holding-screws a c through lthe holes c c, they willhave a strong dovetailed hold upon the timber, and a flat and steady healing foi". their heads, as represented in tig. 2.

To cutY up the timber on `the stay-log to advantage or work it close up, it is necessary to have the staylog- A as narrow as possible -on'it-s holding-face.- VIn working upmoderatelyJ-sized logs or buris, a sutiiciently steady hold can be got by employing a staylog of small dimensions in its transverse section, but

t the stay-log, or be of only narrow dimensions, and be This clip, which is only .used either singly or iu sets. used as atemporary device till the timberv has been reduced by the working of' themachine to a moderate size, convenient for the stay-log to carry, is conl.

structed to closely or snugly straddle the stay-log on its back .and sides, and to bear on theone, or that which in the travel of the wood is the rear ange b', while it is made to overlap or project beyond the other or advance flange b, and is set up` against the wood by an adjusting stop'screw, d, acting through the intervention of a plate,'e, on the wood, said clamp being secured by an attaching-screw, f, arranged to screw or bite into the advance ilange b ofthe stay-log.

When the log or burl is oi'verylarge size, then the clip C may be provided with an extension, g, on the rear. flange side, also of the stay-logI and a screw, h,

be passed through the same, to enter the wood, to h givea'stiiter hold to the clip.

Whatl is here claimed, and desired to be secured by Letters Patent, is 1. The clip G, constructed "to straddle the stay-log, as described, and to heal-upon its one ange lb', while it is extended to project beyond the other ange b, and is provided with an adjusting stop-screw, d, for operation in connection with an attaching-screw, j, relatively to thestay-log and timber carried by it, substantially as specified. Y

2. The clips C, provided with' the extension g and screw h, and its adjusting stop-screw d, and attachiug-screw'j, essentially as specified. l

- JOHN N.v LYMAN. Witnesses:

FRED. HAYNES. FERDINAND TUscH.

Images