US207010A - Improvement in hay-tedders - Google Patents

Description

E W BULLARD' 2 Sheets-Shet 2.

Hay-Tedders.

No. 207,010 Patented Aug 113.1878.

Willi/asses I Veil/Z371 we @QMW MPETERS, FHOTO-UTHQGRAPHER. WASHINGTON, 0 c4 UNITED STATES PATENT QFFICE.

QZEKIELKV. BULLARD, OF BAR-RE, MASSACHUSETTS.

IMPROVEMENT IN HAY-TEDDERS.

Specification forming part of Letters Patent No. 207,010, dated August 13, 1878; application filed 7 December 26, 1877.

To all whom it may concern:

Be it known that I, EZEKIEL BULLARD, of Barre, in the county of Vorcester and State of Massachusetts, have invented certain new and usefulImprovements in Hay-Teddcrs, of which the following is a specification:

My improvement consists, first, in combinin g, with the tine-shafts and bar operating said shafts an eccentric-strap, the bar being intermediate of said shafts and strap.

By attaching the two tine-shafts to the same bar and using but one eccentric-strap to give the required movement of the tines, all increase of friction by the outward inclination of the tines is avoided, for the reason that one tine-shaft is a counter-balance to the other.

My improvement consists, secondly, in combining, with said tine-operating mechanism, a side beam having a vertical slot, an eccentric constructed with a curved slot, and a bolt for securing said eccentric in different positions on the side of said beam.

In the accompanying drawings, Figure 1 is a vertical transverse section of my improved hay-tedder. Fig. 2 is a side elevation, the tine-frames being elevated. Fig. 3 is a perspective view of my preferred form of tineframe and connections to the eccentric. Fig. 4 is a rear view, on a larger scale, of my springpin clutch, some of the parts bem g broken away. Fig. 5 is a perspective view, on a larger scale, of my preferred form of device for connecting the tine-shafts to the operating mechanism, the various parts being detached to illustrate the device more clearly. Fig. 6 is a transverse section, on a larger scale, of a tine-,

shaft, showing the hooked bolt used for securing thetines.

A A A are the longitudinal beams, and B B the transverse bars, of the main frame of the machine. O is an axle rigidly secured beneath the central bar, B, of the frame by means of clips secured to the longitudinal beams of the frame; The axle 0 receives the driving-wheels D D. On the rear ends of the beams A A A are bearings f f f for two independent shafts, F F, carrying two frames, E E.

G G G G are the tine-shafts, journaled in the frames E E, and provided with cranks g' g g, whose wrist-pins g g g g are journaled in the ends of bars H H, which are, in turn, connected with straps I 1, working on eccentrics J J, bolted to the outer beams, A A. The outer ends of the shafts F F pass through slots h h in the bars H H, and are provided with pinions K K, meshing with spur-wheels L L, rotated bycog-wheels lVI M, whoseangular teeth on m are engaged by horizontally-acting spring-pins N N, secured to the hubsdd of the driving-wheels D D, and operating therethrough. The tine-shafts G Gr are provided with hooked bolts 0 O, whose hooks 0 0 securely hold the loop in applying the tine wire or rods *0, forming the forks. These bolts are secured by nuts 0'. The rear end of each bar A A is provided with a vertical slot, (1, for the reception of a bolt, P, by which the eccentric J is'secured at any desired height.

The eccentric is constructed with a curved slot, j, to permit sidewise adjustment.

The hubs of the driving-wheels are formed with projections 61' d, forming bearings for the cog-wheels. The cog-wheels areadjusted laterally by means of sliding bars Q Q, whose hooked ends q q engage with collars R R, formed by constructing the hubs r r with annular grooves. The bars Q Q are forced outward by springs S S, and retracted by a lever, T.

Having thus described my invention, the following is what I claim as new and desire to secure by Letters Patent:

l. The combination of eccentric-strap I, tine-shafts Gr G, and a bar, H, intermediate of said strap and tine'shafts, as set forth.

2. The combination, with the eccentric-strap, intermediate bar, and tine-shafts, of the eccentric J ,having curved slot j, and beam A, having slot a, as and for the purpose set forth.

EZEKIEL W. BULLARD.

W itn esscs HENRY J. SHATTUOK, FREDK. W. JENKINs.

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