US753697A - Mowing-machine. - Google Patents

Description

No. 753,697. V PATBNTBD MAR. 1, 1904. J. T..LG1LLASPY.

VMOWINGr MACHINE. APPLICATION FILED AUG. e, 1902. RENBWED Nov. 9. 1903.

.N0 MODEL.

. lu/vento@ Witnesses i K l v I l Y I Ghazal:

, UNITED STATES TER, OREGON.

Patented ).Iarch 1, 1904,??

PATENT OEEICE.

JOHN THOMAS GILLASPY, OFl UNION, OREGON, ASSIGNOROF ONE-THIRD TO CHARLES WILLIAM MICHAEL AND i MowlNG-MACHINE.

SPECIFICATION forming part of Letters Patent No. 53,697, dated March 1, 1904.v Application iled August 6, 1902. Rgnewed November 9, 1903. Serial No. 180,479. (No model.)

declare the following to be a full, clear, and eX- act description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to new and useful improvements in mowing-machines.

The object of the invention is to provide an improved means for reciprocating the cutterbar of a mowing-machine.

A further object is to do away with the ordinary pitman and with the resulting jar and racking of the machine produced by such pitman, thereby enabling a much lighter con-` structed machine to be produced than are now in use.

With these andother objects in view the invention consists of certain novel features of construction, combination, and arrangement of parts, which will be hereinafter more fully described, and particularly pointed out in the appended claims.

Figure 1 is a top plan view of a portion of a mowing-machine, showing the application of the invention. Fig. 2 is a vertical longitudinal section through the ieXible shaft. Fig. 3 is a vertical cross-section through the cutter-bar head and cam-roller, and Fig. 4v is an enlarged detail section on line 4 4 of Fig. l.

Referring to the drawings, 1 denotes the main drive-shaft, which is geared at one end to the drive or supporting wheels of the machine and suitably supported by the framework thereof. On this shaft is liXed a bevel gear-pinion 2. 3 denotes a similar beveled gear-pinion in mesh with the pinion 2 and Xed on the end of a flexible shaft 4, journaled in a swinging bearing-bracket 5, which has a hinged connection with shaft l, as shown. The outer end of the iieXible shaft 4 is journaled in bearings 6 on the head of the fingerbar 7 of the cutting apparatus. 8 denotes a cylindrical enlargement or roller fixed on the shaft 4 between the journal-boxes 6,` and in this roller is formed a cam-groove 9. Adjacent to its point of connection with the lingerbar the shaft 4 is divided into two sections or WILLIAM SULLIVAN, OF SUM- lengths, and on the contiguous ends of the secs,

tions are vattached loops 10, arrangedin planes at right angles to each other and adapted -to vengage similarly-arranged grooves 12, formed in a ball 13, by which construction it will be seen that the shaft may be rotated when at va,

rious angles. I Y

The head of the finger-bar 7 is hinged to the shoe of the machine in any suitable manner, but preferably by means of trunnions formed on the linger-bar head and engaging bearings formed on the said shoe. This hinged connection between the cutter-bar and the shoe being directly in line with the joint or knuckle in the shaft 4, the parts will thereby be permitted to swing or move in unison.

14 denotes the sickle-bar, having a laterallyl projecting head 15, which is adapted to slide in a groove or way formed on the head of the finger-bar and to be guided in its reciprocating movement by a rod or bar 16, passing throughguide-openings formed in the sicklebar head 15, the said rod being connected at its vends to offsets formed on the head of the Y linger-bar. The Sickle-bar is further guided in its reciprocating movement by having the extreme end thereof formed with dovetailed grooves a along its edges, which are engaged by similar-shaped guides 'formed on the finger-bar head. Y

17 denotes a pin or lug formed on the side of the sickle-bar head adjacent to the roller 8, the said pin being adapted to enter the camgroove and to be reciprocated by the rotation of said grooved roller and to impart such reciprocating movement to the sickle-bar of the machine.

Suitable casings (not shown in the drawings) may be employed to protect the Working parts from dirt and obstructions.

In the herein-described construction it will be seen that I have entirely done away with the use of a pitman-rod and all the undesirable elfects resulting from the use of a pitman-rod and have substituted therefor a simple construction which will do the work in a the advantages of the invention.

Having thus described my invention, what I claim, and desire to secure by Letters Pat-v ent, is-

1. In a mowing-machine, the combination with a'inger-bar, of a reciprocating sickle-bar having a pin or lug, a shaft composed of two sections connected by a universal joint, a roller fixed to one end of said shaft and provided with a cam-groove adapted to receive the pin or lug on said sickle-bar, a main drive-shaft disposed at right angles to said ieXible shaft, a bearing yoke or bracket hinged directly upon said main drive-shaft and supporting said jointed shaft at its opposite end, and gearing for imparting motion from said drive-shaft to said jointed shaft, substantially as described.

2. The combination With a supporting-shoe, of a finger-bar hinged thereto, a two-part shaft, one part of which is carried by said finger-bar, a universal joint connecting the parts of said shaft above the hinge connection of said finger-bar to permit the latter to swing up in the plane of the hinge connection of the nger bar with the shoe, a reciprocating sicklebar,means for transmittingmotion from said two-part shaft to said sickle-bar, and a main drive-shaft geared to said two-part shaft to rotate the same, substantially as described.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

JOI-IN THOMAS GILLASPY.

Witnesses:

SAM. R. SToT'r, JNO. S. ENNIS.

Images