US1260351A - Scythe-snathe fastening. - Google Patents

Description

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REUBEN J' EDWARDS, OF WATERBURY, VERMONT.

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Specification. of Letters Patent. PajtgQu-teqij Diap, 269 f @jttn Application led December 12, 1913. Serial No. 806,211.

vTo all whom may concern.'

Be it known that I, REUBEN J. EDWARDS, a citizen of the United States, residing at lllaterhury, in thecounty of Washington Tand State of Vermont, have invented a new and useful.Improvement in Scythe-Snathe Fastenings, of which the following descripytion, taken in connection with the accom- "ln devices or' this character. O'reat ditiicultv has been Vexperienced in perfecting a fastening which 1s capable of easy adjustment,

4without sacrificing strength and rigidity 6of the structure after the adjustment has been made, and it is the object ot this invention to overcome this difficulty.

A'fnrther object is to provide an adjustable Afastening in which the fastening bolt is of ordinary standard formation, thus doing,` away with bolts having specially constructed heads. 'construct the pivoted plate that the means for effecting its adjustment are plainly visible, whereby an exact adjustment is readily secured. o

lFurther objects and advantages will appear from the following description of the invention taken in connection with the aeeornpanying drawings, in whioh- Figure 1 is a perspective view ot the under side of the butt end of a seythe snathe having my invention applied thereto.

Fig. 2 is a longitudinal sectional view.

Fig. 3 is a perspective view of the adjusting plate.

Fig. i is a perspective view of the holdingV plate, which lies under the end of the adv justing plate and enages the latter to prer which encircles and holds the blade tang A.

The hand 1 is provided with an extension A further object is to so 5 on one side, to provide a bearing 6 for a stud 7, which is integral with an adjustable plate 8, and provides a pivot about which said plate may be oscillated. The plate 8 is provided with a pair of similar apertures 9, 9, into one 0r the other of which the bent end A of the tang projects. Beyond the apertures 9, 9,.and near the outer end, the plate is provided with a curved transverse slot 10, which loosely receives a clamping bolt 11.

In order to provide for a graduated adjustment of the plate 8, and in order to pro-' vide means by which it lnay be firmly held in any adjusted position, the said plate is gradually diminished in thickness along its edge farthest removed from the pivot point, and in the beveled portion thus Vformed are provided a Dumber. of radially disposed teethlQ formedwith their active operating portions on the-'face or' the plate adjacent the Vsnathe',but pl'ainlyqvisible on the opposite 'fac oftheiplate in the 'forni of notches in the@ diie "thereof, by reason ot being formed in the said beveled portion, as'clearl v seen in Fig. 1.

Firmly embedded in the snathe. and secured against movement therein by means of a projection 13 thereof pressed into the wood, is a holding plate 1t nrovidcd 4with an aperture 15 for the passage ot' the heit 11, and having a lug 1G thereon, in the face of which are cut a pair of teeth i? so prof portioned and beveled as to eoact with the teeth 12 of the plate 8. The teeth 12, at their inner portions, project out-ward slightly from the face ot' the plate 8, and the opposed tace of the holding plate 1d: accordingly provided with a curved transverse groove 18 adapted to receive said projecting portions.

On the opposite side oiits slot 10, the plate 8 is provided with additional teeth 19, each depression therebetween lheini; 'in radial alinement with one of the teeth 12, and on the holding plate 1st there is provided adjaf cent the inner edge of the aperture 15, a singlecentrally disposed tooth 20, inradial alinenient with .the depression between the two teeth 17, which tooth 20 is adapted. to enter the depressions between the teeth,19, to provide additional means, acting in conjunction with the teeth 12 and 17, t'or pre-- venting relative movenn-nt between the i lates E? and 14, when the latter are drawn into close conta-@thy the tightening of a nut on the end of bolt l1. The said holt. which.

lili@ is of ordinary form, passes through both plates and also through the body of the snathe, as clearly Seen in Fig. Q, and at its end is provided with a suitable washer 2, between the face of the snathe and the nut.

.ehehe-readily apparent, the eonstl'uetion above described,I provides interengaging teeth on the contacting faces of ,the superposed relatively movable plates, which teeth, by reason of being` cut in portions ot' said platee which are inclined with respect to said contacting faces, are plainly visible on the outside tace ot the npprinost plate, whereby a predetermined adjustment ol the plates is readily secured. Furthermore, the structure is not thereby Weakeneddis would be the case if the teeth were fornied in the edges, rather than in the contaeting faces, of the plates.

' l claim,

1. In a Scythe snathe fastening?, a socket plate pivoted at one end, and having a beveled edge at its free end', a stationary plate below said socket plate, having a portion thereof extended beyond the free end of said socket plate, and providing a projection having an inelined tace in matching` relation to the beveled edge of said socket plate, said beveled edge and said inclined faee having cooperating teeth lying;` in the plane ot said bevel, 'whereby a visible relative adjustment between Said plates is attorded, and means for clamping,l `said plates together.

2. In a Scythe snathe fastening, a pivoled socket plate,having a beveled edge-at its frm end making an acute angle with the upper :taeeof said plate, said edge having a series ot teeth extending' across the saine in the plane oi said, bevel, from the upper to the under tace ot' the plate, a stationary plate below said socket plate having a portion thereof extended beyond the Jfree end ot the socket plate and providing` an npstanding projeetion having an inclined tace eontinguous lo and in substantially thesanie plane as said beveled edge, said inclined face havingl a recess adapted to receive a tooth ot' said bev4 eled edge, whereby a relative adj ustnient beA tween Said plates, visible troni the upper face ot said socket plate, is atl'orded, and means for clamping said plates together.

REUBEX J. EDWARDS.

ll'itnesses .lames K. FULLnn'rox, r. lV. RANDALL.

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