US501865A - Mower - Google Patents

Description

ma Model.) f2 ,sheath-sheet I.

E. M. BRE W'STER',

Moma..

0- -501.8f65 Patented July 18,1393; I

ylever is a chain c whose lower end may be l UNITED STATES .PATENT OFF-ICE.

ELIAS M BREVSTER, OF NORWICH, ASSVIGNOR TO ROBERT M. BREWSTER,

oF HARTFORD,

CONNECTICUT.

MOWER.

SPECIFICATION forming part of Letters Patent No. 501,865, dated July 18, 1893.

Application filed October 29, 1892.

To all whom-122'? may con/cern,.-

Beit known that I, ELIAS M. BREWSTER, a citizen of the United States, residing at Nor# wich, in the county of New London, State of Connecticut, have invented certain new and useful Improvements in Mowers, which improvements are fully set forth and described in the following specification, reference being had tothe accompanying two sheets of drawings.

This invention is in the class of mowers in which the cutter bar may he raised (to clear stones and other obstructions) by means of a lever located within reach of the rider, and my purpose is to so improve the lifting and locking mechanisms that much of the labor now necessarily performed by hand may be accomplished by foot,thus leaving the hands of the rider free to attend to the guiding ofY the team.

Figurelof the annexed drawingsis aperspective view of a portion of the frame of a mower having attached thereto` the seat and also the lever and connected parts by means of which the linger bar may be raised, said b ar being hinged to the machine frame and connected with the lower end of the chain (seen at the left hand of said figure) in the ordinary way. The manner of hanging and connecting the linger bar forms no part of my present invention and l have therefore not illustrated said bar. Fig. 2'is an enlarged view of the inner side ofthe machine frame, showing the lifter lever locked in its vertical position. Fig. 3 is a similar view showing said lever pulled half way down, in full lines, and as locked in its lowest position in dotted lines. Fig. 4 is an outer side view of the same parts and Fig. 5 is an outer face view of a portion of the machine frame, showing the channel or chamber in which is fitted to slide a bolt dA shown, detached, in Fig. 6. v

In the drawings c, denotes the machine frame having pivoted to its outer face (near the front of said frame) a lifter lever b of considerable length, whose 'free end terminates in a suitable handle, here formed as a shovel handle ZJ. Secured'to an extension b2 of said connected with the linger bar ofthe complete mower.V Upon the face of the lever that confronts the frame a i-s a'projection or stud b3 Serial No. 450.390. (No model.)

which, under certain conditions, may he engaged by a vertically movable bolt d loosely fitted in a chamber a of the machine frame a.. The upper portion of said frame is formedwith a semi-circular extension a? that is concentric with the pivot upon which the .lever b swings y and with the ripper end of bolt dpthe outer edge of which, when thebolt is in its lowest position, is flush with the circumferential edge of the extension a2. Projection b3 is so located that it'rnay follow around the said circumferential edge when the bolt d is drawn downward but when the curved end of said bolt is raised above the extension az'the end of said bolt lies in the arc shaped pathA of said projection and serves as an effectual lock to prevent any rearward m'ovementof lever b.' Bolt d is of such length that it projects below the framemand it has near its lower end alaterally projecting stud d2 that lengages a lever e fulcrumed upon a stud @Sat the front end of frame a. The rear end'of the said lever is formed as a pedal e that is located within easy reach of the`drivers foot. A spring f is attached to lever e midway of the latters length, the other end of the spring being attachedto the frame ain such manner that said spring seeks, constantly, to draw the lever, and theY connected bolt d, upward and to hold saidparts in the positions shown-in Fig. 1. When however it is desired to draw downward the bolt d, to allow the lever handle b to be rocked on its pivot, it is only necessary to press down the foot lever e, as will be understood by referen ce to the drawings. When the lever handle h has been drawn rearward and forced down to its lowest position, as seen in dotted lines in Fig. 3, thebolt d may then slide upward sufficiently far to carry the curved end df past the lever projection'l, thus bringing into the rear of said projection the flat, vertical edge of the bolt and serving as a lock to prevent the lever h from rising to a vertical position. When, however, it is desired to release lever b, to drop the finger bar, the foot lever e may be pressedy downward carrying with it the bolt. So soon as the curved end of the bolt shall have been drawn downward flush with thecurved edge of the frame projectiona lever b is then free to lbe raised. The bolt d thus serves to lock the lever h in either a vertical or horizontal position.

It will be noticed that the several drawings show a rod g that is pivoted to the lever ex tension b2 at one end, just above the hori-l ment of the driver (having a machine of myy Vimproved form) is to press lever edownward with his foot and so soon as bolt d is drawn away from projection h3 the powerful spring h immediately draws lever b rearward a distance sufficient to enable the driver to reach handle b without any extraordinary effort and he may then force said lever h down to` a horizontal position either by hand or foot as may be most convenient. When it becomes necessary to release the lever b from` its horizontal position and allow it to rise, foot lever e is pressed downward to draw the bolt,` d away from projection h3, when the weight of the finger bar hangingheavily on chain c im-i mediateljT lifts lever b until met and over-` come by the resistance of the spring actu-I ated rod g. This brings said lever into easyY reach of the driver and he may then grasp it j and force it forward to its vertical position. It will thus be seen that by utilizing the force l of spring h or the weight of the finger bar, as the case may be, in connection with myI the lever b may be unlocked and brought to an angle to its,I

improved bolt mechanism,

vertical and horizontal positions, where it may be easily grasped by the driver without` compelling him to make long and dangerous reaches after said lever, as is now necessary. My lmprovedmechanism is fully as simple as anyat present employed for the same obj ject and will not wear out quickly or become inoperative.

center and the circumference of the circle described by the movement of the stop, subi stantially tangential to said circle, whereby the engagement of the stop with one side ot'.v "the bolt locks the lever in one position and` engagement of it with the other side of the ,l

bolt locks it in the opposite position, substantially as set forth.

2. In a mower, in combination, a pivotal fnger-bar-lifting lever having a projection b3, adapted to move in the arc of a circle a bolt movable longitudinally between the center and the circumference of the circle described bythe movement of the stop and substantiallyr tangential to said circle, whereby that seeks to expand and draw rod g and the stop is adapted to engage with said projection and lock said lever in either a vertical or horizontal position as set forth, and a spring actuated foot lever connected with said bolt, substantially as and for the objects specified.

3. In a mower, the combination, with the machine frame provided with an extension, of

va finger bar lever pivotally secured to said extension and provided with a stop, a bolt longitudinally movable in a line between the pivotal point and the circumference of the circle described by said stop upon the lever,

whereby the engagement of the stop with one side of the lever holds the lever in one position and its engagement with the opposite side holds it in lanother position, and means for moving said bolt, substantially as 4set forth.

4. In a mower, the combination, with the machine frame, one side of which is provided with a slot or chamber, of a finger bar lever pivotally secured to that side of the frame, a portion of the lever overlying the slot, and provided with a stop, a bolt longitudinally movable in said slot, one end of which is adapted to be projected from the slot to engage with the stop on the lever, and a spring actuated lever for moving the bolt in the slot, substantially as set forth.

5. In a mower, the combination, with a machine frame having two projections, a finger bar lever pivotallysecured to one of said projections and provided with a stop, and a collar loosely secured in the other projection, a rod pivotally secured to the lever at one end and passed through the collar at the other end and provided with a spring beyond the collar, and a bolt longitudinally movable between the center and the circumference of the circle described by the movement of the stop, and substantially tangential to said circle, whereby one side of the bolt is adapted to engage with the stop and lock the lever in one position and the other side is adapted to engage with the stop and lock the lever in another position, and means for moving said 1 bolt, substantially as set forth. Having described my invention, Ivclaim1 1-. In combination with the finger bar liftfL ing lever of a mower, provided with a stop,

of a bolt movable longitudinally between thev 6. In a mower, the combination, with the machine frame provided with a slot or chamber, of a finger bar liftingV lever pivotally secured to the exterior of said frame so as to cover a portion of said chamber, a bolt in said chamber for locking the lever in .two positions, a spring actuated foot lever pivotally secured to the side of the frame opposite the finger bar lever, the intermediate portion ot which is pivotally secured to the lower end of the bolt, whereby the pressure upon the free end of the foot lever will disengage the bolt from the stop and permit of the movement of the finger bar lever, substantially as set forth.

ELIAS M. BREWSTER.

Witnesses:

FRANK H. ALLEN, ALoNzo M. LUTHER.

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