US408133A - Gardner r - Google Patents

Description

(No Model.)

G. R. PARKER.

MOWING MACHINE.

No. 408,133. Patented July 30, 1889.

Wdyeoac a awvewtoz @r M. WW1 9M 9? 09M 3 51 1 flHom/LW N. PETERS. PhnwLHhngmphur. Wnhmglen. n, c.

UNITED STATES PATENT OFFICEO' GARDNER R. PARKER, OF \VORCESTER, MASSACHUSETTS, ASSIGNOR TO THE RICHARDSON MANUFACTURING COMPANY, OF SAhilE PLACE.

MOWING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 108,133, dated July 30, 1889.

Application filed June 11, 1888. Serial No. 276,712. (No model.)

To aZZ whom it may concern.-

Be it known that I, GARDNER R. PARKER, a citizen of the United States, residing at WVoreester, in the county of NVorcester and State of Massacl'iusetts, have invented certain new and useful Improvements in Mowing-Machines; and I do hereby declare that the following is a full, clear, and exact description thereof, which, in connection with the drawings, making a part of this specification, will enable others skilled in the art to which my invention belongs to make and use the same.

My invention relates to harvesting machines, and more particularly to mowing-machines.

. The object of my invention is to lighten the draft of a mowing-machine, and more particularly to lessen the draft of the inside shoe and the fin ger-bar upon the ground and throw the weight of the same upon the axle or main partof the mowinganachine when the machine is in operation, and thus overcome to a great extent the side draft of the machine and cause it to operate in a more satisfactory manner; and my invention consists in certain novel features of construction and arrangement of devices applied to a mowing-machine to accomplish the result above set forth,and more particularly in combining with the lifting-lever of the mowing-maehine and the parts connected therewith a strong spiral spring, and with the inside shoe and hinged bar a second strong spiral spring, the combined action of which is to lessen the draft of the inside shoe and of the finger bar and throw the weight of the same upon the main part of the machine when it is in operation, as will be hereinafter fully described, and the nature thereof indicated by the claim.

In the accompanying drawings I have shown my improvements applied to a well-known form of mowing-machine.

Figure 1 shows a rear view of the machine. Fig. 2 is a detail view, on an enlarged scale, of the inside shoe. Fig. 3 is a detail view of a portion of the lifting-lever and parts connected therewith, and Fig. etis thelever stand or support detached.

As the mowing-machine shown in the drawings is of well-known construction and operation, it will only be necessary to describe the parts thereof which are connected with and relate to my improvements.

A stand or casting 1 is bolted to the frame of the machine, upon the outer side of which is supported the lifting-lever2,provided with dog 3, rod 4, and pivoted handle 5 for operating said dog and disconnecting the same from the holding-notch (3 in the rear upper projecting edge of the stand 1.

To the lower end of the lifting-lever 2 is secured the segment or chain cam 7, of any ordinary construction, to which one end of the chain 8 is secured. chain is secured to the hinged coupling-bar 9, of usual construction, and which is hinged at its inner end to the frame of the machine and at its outer end to the shoe 10 between standards 11 (see-Fig. 2) in the ordinary way. The front brace (not shown) of the hinged bar 9 is hinged at its outer end between the ears 20 on the shoe 10, just at the rear of the lead-wheel 21,in the ordinary way in the class of machines to which myinvention is applied From the inner face of the stand 1 extends a stud 12, on which is supported a strong coiled spring 13, the upper end 13' of which strikes and bears against a lug let on the lever 2, or 011 the upper part of the chain-cam 7, and the lower end 13 of which extends into a slot 15 in the stand 1 and bears against said stand.

. The upper edge of the stand 1, upon which the dog 3, attached to the liftingleverB, slides when said lever is moved back and forth, is made free from notches to engage said dog, so as to allow the same to slide freely thereon, except near the front edge of said stand 1, where there is a stop-notch 6 to engage the dog 3 and to prevent the lever 2 from going too far forward against the action of the spring 13 in case of the shoe 10 entering a depression or hole in the ground. There is also a holding-notch 6' in the rear projecting edge of the stand 1, into which the dog 3 enters The other end of said the lifting-lever 2 in an upright position and within easy reach of the operator when the machine is in operation, and through chaincam 7, chain 8, and hinged bar 9 to tend to raise the inside shoe 10, carrying the inner end of the finger-bar, from the ground, and thus lessen the draft of the same and throw the Weight thereof upon the main part of the machine. The absence of notches in the top edge of stand 1 and the smooth rim between the stop-notch 6 and holding-notch 6 allows the dog 3 to slide freely thereon,and the lifting-lever 2 to move forward and back, and the shoe 10, supporting the inner end of the finger-bar 19, to follow any undulations or unevenness in the ground, the spring 13 tendin g to lessen the weight and draft of the same, as above set forth.

In the rear part of the shoe 10 is arranged a small bearing-wheel 16, which assists in supporting the rear part of the shoe. The inner end of the finger-bar 19 is supported upon the rear part of the shoe 10 between the stands 11 in the ordinary way, and is rigidly secured to the shoe by means of bolts or otherwise. The rear part of the shoe 10 extends inward from the end of the finger-bar 19, secured thereto, and projects under the outer end of the hinged bar 9, (see Fig. 1,) and is provided with a stud 17, which projects up from the shoe under the hinged bar 9 and acts by striking against the bar 9 as a gag-iron or stop to prevent the shoe 10 from tilting over too far on its hinged connection with the bar 9 and the finger-bar 19, secured to the shoe, from dropping down too far.

The striking of the upper end of the stud 17 against the lower side of the hinged bar 9, as above described, will limit the downward motion of the finger-bar 19, rigidly secured at its inner end to the shoe 10, which is connected by a hinged joint with the bar 9, but will not in any way interfere with the upward motion or the raising of the fingerbar and also of the shoe.

Encircling the gag-iron or stud 17 is a spiral spring 18, the lower end of which bears against and is preferably secured to the inwardly-projecting part of the shoe 10, and the upper end of which bears against the under side of the hinged bar 9 at its outer end. (See Fig. 1.) The spring 18 acts as an elastic cushion interposed between the inner rear part of the shoe and the hinged bar 9, that is within the hinge-joint of said shoe and bar, and gives a springy or yielding motion to the finger-bar by means of its hinged connection through the shoe 10 with the bar 9. The

spring 18 also act-s to tilt up the outer edge or side of the shoe 10, and thus to raise the outer free end of the finger-bar 19, secured thereto, and assists in carrying the Weight of the extreme outer end of the finger-bar, thus lightening the draft of the machine and obviating the side draft occasioned by the weight of the bar dragging on the ground. The contractibility of the spring 18, interposed between the hinged bar 9 and the inner rear part of the shoe 10, as above described, is limited by the gag-iron or stud 17, on which said spring is supported for the striking of the upper end of the stud 17 against the the under side of the hinged bar 9, as before described, prevents any further contraction of the spring, and thus provides for any overweight of the finger-bar in case the spring is not strong enough to balance the weight thereof.

From the above description it will be readily understood by those skilled in the art that the combined action of the two springs 13 an d 18 is to tend to raise the entire fin ger-bar and the parts supported thereon and the inside shoe from the ground and throw the weight thereof onto the main part of the machine, thus obviating to a great extent any side draft of the machine.

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

In a mowing machine, the combination, with a stand supported on the frame of the machine, having a stop-notch 6 and a holding-notch 6 in its 11 wardl -)ro'ectin ed 'e c p yl J is e and a smooth rim between the notches, and a stud 12, on which is supported a spiral spring 13, bearing at one end against the lifting-lever pivoted concentrically with the stud and bearing at the other end on said stand, of the lifting-lever carryinga sliding dog to engage said notches, a chain-cam secured to said lever, and a chain 8, secured to said cam and to the hinged bar 9, and said bar hinged at its lower end to the inside shoe, the fingerbar 19, secured at its inner end to the shoe, and said shoe having an inwardly-projecting part carrying a stud, and a spiral spring 18, supported on said stud and interposed between the lower end of the hinged bar 9 and the projecting part of the shoe, for the purpose stated, substantially as set forth.

GARDNER R. PARKER.

Witnesses:

JOHN C. DEWEY, C. M. SOHOEIELD.

Images