US8000A - Improvement in scythe-fastenings - Google Patents

Description

' Fig. 2 is a side elevation of the same. i is an end elevation of the same.

1 UNITED, STATES PATENT OFFICE.

NATH. LAMSON, or SEELBUENE EALLS, MASSACHUSETTS.

IM PROVEMVENT IN SCYTHEFASTENINGS.`

Specification forming part of Letters Patent No. 8,000, dated March 25, 1851.

-To all whom it may concern:

references thereof.

Of the said drawings,Figure 1 denotes a top view of the lower portion of a Scythe-snath, and a part of the blade as connected to it. Fig. 3 Fig. 4 is a cross-section of the samethrough the screwbolt and the inclined bearing-pieces thereof. Fig. 5 is a transverse section taken through the collar and bearing, at the rear end of the shank of the blade.

In the said drawings, or in such ot' them as the same may be, A represents the snath; B, the blade ora part thereof, C, the shank of the blade. The snath, made square in section and tapering, as seen in the drawings, is encompassed by two square or iiat surface metallic collars, D E, arranged upon it, as Seen in Figs. l and 2. The rear or largest collar, E, has a projection, c, extending above it, the said projection being formed with one or more cylindrical holes, b c, for the receptionof the shank C, which is formed cylindrical for a short distance at and back from its extreme end, and is passed through some one of the said holes, they being bored in'radial lines which proceed from the axis of the turning screw-bolt F as a common center. The said screw-bolt passes down through the shank and the metallic collar D, and has a screw and screw-nut, G, adapted to its lower end. The said bolt passes through twowedge-shaped metallic bearing-pieces H I, one of which is placed directly on top of the shank, while the other is disposed underneath it, and rests on the upper surface of the collarD. The thinnest portions of these bearers are` arranged in opposite directions to each other in all cases, and when the inclinations ot' the surfaces of the bearers are arranged as seen in Fig. 3 the Scythe-blade will be inclined below the horizontal plane ofthe upper surface of the collar D but when they are reversed and arranged as seen in Fig. 6 the inclination of the Scytheblade will be changed, and it will be above the plane of the said upper surface.

What I Aclaim as my improvement is The combination of the two wedge-shaped bearers H I, the confining-bolt E, and the Support at the extreme or other end of the shank, as constructed, substantially in the manner as specified, the whole being for the purpose of enabling a person to change the positions of the blade of the Scythe in a direction transversely of the plane of the blade.

In testimony whereof I have hereto set my signature this 12th day ofAOctober, A. D. 1850. NATHANIEL LAMSON.

Witnesses:

FRANCIS GoULD, R. H. EDDY.

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