US62355A - mofftg-omebyi op coltjmbu s - Google Patents

Description

@eine tetes atent @time J. A. Mo NTGoMnnY, or COLUMBUS, onto.

' Letters Patent No. 62,355, dated February/ 26,1867.

lite -Srtehule nfertet tu in tinte cttets zitni mit; uniting' tutti iin stmt.

'ro ALL WnoM rr MAY concessi:

Beit knownthat1, J. A.' MONTGOMERY, of Columbus, in the county of Franklin, and State of Ohio, here inventedcI new and useful Machine for Pointinglence Pickets; andi d c hereby declare that the following is e.

full, clear, and exact description thereof, referencebeing had to the accompanying drawings, making a part o this specitication, in which-'fv Figure 1, sheet l, is a perspective view of the machine arranged'for rounding the ends'ioi' pickets'.

, liigure'Z is an enlarged view of. the cutter and its'support. i

Figure `3 4is n; vertical section through fig. 2talien in the plane indicated h red line x ce.

Figure 4 is a vieiv `of one form of pointed pieket`us produced by the-arrangement shown-in g. l.

Figurel 5, sheetv 2,r is a front elevation of the machine, arrn-ngedfor scoring thepointed pickets.

Figure 6 is an elevation of one end of themachine, shown in iig. 5.

Figure 7 4is an enlargedvie'yvot: thc, cutter-iiead, showinghosv thc pickets can be scored.

Figures S, 9, 10, andj -11 are views o't` several forms of pickets.

Similar lcttersfof, reference indicate corresponding parts in the several figures.

The object of this invention is to point and score theends of fence pickets vhya machine which will perform the work perfectly, so that the pickets do not require subsequent "dressing and smoothing. Before my,

invention the 'ends of fence pickets have been pointed and scored by reciprocating sans', and also by means ot' cutters, which were of the shape required of the points, and which were applied to reciprocating shafts ec' as to cut' perpendlcuiarly to the length of the grain, and uponthe principle of a stamp.- Both oi these plans are objectionable where neat work isvrequiredrus in the first instance, where thework is done by sawing, the

rounded and scored edges'require tc he dressed and smoothed, and in the latter Vinstcncethe"nood is liahle to 'be slivcred, and the work is imperfcctly done, besides which the' cutters require frequent sharpening and rene-'s'- ing, and are verjl liable to break, and to be'twisted out of the required shape.

Thenature of my invention'consists in a machine which is adapted for-pointing and sccringiince'pickets.

by cutting them with a knife `iri a longitudinal direction 'with the length o f the grain tot" the wood, as 4will he vhereinafter described.k

To enable others skilled in the artto understand my invention, I will describe its construction and operation. AIn theaecompan'ying drawings, A represents a. frame consisting of two legs or uprights, which support a horizontal beam, upon which lutter the bearing for the oscillating cutter-head is secured. Any other suitable form pr frame may he employed instead of the one herein'shcwn. In frontof the frame Aiea beam, B, upon tiki-ch the pickets are supported while hein'g poipted and scored; this beam is secured' t-o the upper endsv ot two' upright supports,.C C, whichnrevvertically slotted and secured to the legs of frame A hy means of clamping boltsa a, that passthr'ough the slots in the supports CC, and receive upon'their rear ends lever nuts b b. By loosening the nuts b, thc.`bea n i B can be adjusted up or down, according to the width oi' the pickets to be pointed.- Upon the beam or. table B two stop-hlocks,c d, are clamped by'means ot' ,the clamping-screws e f,.

` which 'blocks can be adjusted lengthwise or removed front the beam. UThe stop-block ci is not used during the operation of rounding the -endsof the pickets; but itis used during the operation ot scoring .the pickets, as will be hereinafter explained. At or near the middle of the frame beam A is an oscillating cutter-head, which A consists vof a plate, g, that is secured to one end of a-slicrt shaft, h, that passes through and turns in a xed bearing, D.. The plate g, which is nearlyY cireular, has a vnurnher of eccentric circles marked upon its front face, which serve, Vin conjunction 'with lines that are'tangent to said circles,as gauges for adjusting a knife, s', to cut curves of different radii. The knifei is secured to the face of the plate g, in a plane perpendicular thereto and parallel tcthe top surface of the beam B, hy means of a box, j, and a clamping holt, iz, which latter passes through' a'slet, l, through plate g, andthrough said box j, and receives a lever-unam, upon one end. By loosening the nut m the cutting'edgo of the knife z can` be moved nearer to or set further from the or" the plate g, as may be required. This knife t' is designed more particularly for rounding or pointing the pickets,

as shown in iig. 4, to effect which the pickets are adjusted, atime, uponthebeam B, as indicated in red lines, ig.2, and the knife i, with its plate g, forced forwardhy means of lever Gr the picket is then turned over and the opposite edge roundcdin a similar manner by forcing the knife forward again. The curves vgiven to rounding the piekets, 'as shown is. a. 1.1.

the ends of the pickets will be concentric. to the axis of the plate g5 so that in order to increase or diminish tho radii of such curves it will be necessary to adjust'the cutting edge of the knife z' nearer to or further from the exis of motion ofthe plete g. By adjusting the knife z', the benml B, ond the stop-block cl in n' suitable mannen' long or short tapering points can be inode as represented in figs. S,- 9,`nnd 11, or a. rounded-end, representedin fig.. 10,' can be cut. j The movement ofthe knife z', in cutting` `the rounded point-s, is from n horizontal piane to 'o vertical pione, for the grcntostmoveinent, or between these two points, above they axi'sof kthe plate'g. 'In

`in iiglO, the knife t' will sweep through onc-quarterof a` circle, but ii muklg the tapering points the are will be much shorter. Theknife z' meybe used for scoring the pekets,.ns kshown iu ge'. 8 und 9, 4by employing an open-backed`box instead of the one lctteie'djQor` by cutting out; the front portion of the box j, it will answer every purpose. Should it be desired to usonsingle knife for pointing andeeoring the knife z' is brought over and below' the n'xis of vtheplete g for scoring, the box will-notsti'ike theA picket. A

rsepruteknifc, p, shown in figs. 5 and?, maybe used for scoring, if desired.l This knife is alsoclam'pedvto tlie plete g so as to move with it, by ineens of' a. plete, mond setscrews, s s. 'lhe4 arrangement of .this scoringknife is shown in iigss and 7. In cutting the `scores with either the `knife z' or* the kniiepQ'one-helf'bf the score is cut by one movement of the knife, andthe picket is reversed so as to out the-other heli. Thlsiis done' to prevent upward ycutting and a. liability of sliveriug thev wood. `In iig, 5 Lshomthe knife pin the'act of cutting one-half 4of a. score or notch with the point of the picket 'agoinstrthe `stop d; to cut theother'half o`i` the score the picket is reversed and its point brought against the stop c, after which the knife p is brought down as before. The kscore on the opposite edge of the picket is' cut in the semeway. It wilibe necessary to remove the knife p endy its clamp when the knife z'lis used,',blnt it will not b'e "necessary to lremove the fatterA when `the I do' not confine ,'my invention `to the use of two ,knives,`ono fon pointing -end the other for scoring the pickets, for it is evident that a. singleknifecnn be used for. pointing and scoring both. .t In one case the knifev ivorks inthe are ofnl circle above the axis ofthe plate 1,V in theother case the' knife lis moved inthe ere of of. circle below seid exis: It will be seen `from the above description how o-knife een be nrrnngedfor'pointingend y scoring fence pickets,l so that n finished nud perfectly smoothcut is'mode without-liability of slivering the stuffy. and without leaving edges or surfaces which require subsequent dressing. Ijdo not confino myinvention to anyparticular modeof securing the knife p or the kniiez'te its goscillatingsupport, as various clumps maybe adopted for this purpose nor do I confine `my invention to operating thisoseillntmgsupport by hondyes itt'may be moved'by suitablelmachinery. i t i .A Having thus. described my invention, I- clniin as new, ond desire tov seeureby LettersPntent- 1. A machine for producing ourvedpointson the ends of fence pickets,constructedandoperating substantinliy'ns described. l A

2. A machine which willy-'both' point` and txcorek the ends of fence-K .picketsl constructed.nndoneroting sub-w stnntially es described. l y.

1J. A. MONTGOMERY.

l Witnesses.

' J. Rromnn's, y, WM. L. 'HEYL

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