US340083A - Shoe for mowing-machines - Google Patents

Description

(No Model.) 4 Sheets-Sheet 1..

G. H. BARTLETT.

I SHOE FOR MOW ING MAGHINES. No. 340,083. Patented Apr. 2O, 1886.

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SHOE FOR MOWING MACHINES. No. 340,083. Patented Apr. 20, 1886.

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SHOE FOR MOWING MACHINES.

No. 340,083. Patented Apr. 20, 1886.

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G. H. BARTLETT.

SHOE FOR MOWING MAGHINES;

No. 340,083. Patented ApnZO, 1886.

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UNITED STATES PATE T OFFICE.

GEORGE HERMAN BARTLETT, OF MADISON, WISCONSIN.

SHOE FOR MOWlNG-MACHINES.

SPECIFICATION forming part of Letters Patent No. 840,083, dated April 20, 1886.

ApplicatiOn filed February 5, 1885. Serial No. 155,057. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE HERMAN BART- LETT, residing at Madison, in the county of Dane and State of Visconsin, and a citizen of the United States, have invented a new and useful Improvement in Shoes for MOWingMachines, of which the following is a full description, reference being had to the accompanying drawings, in which Figure l is a side elevation showing theinner face of the shoe; Fig. 2, atop or plan view; Fig. 3, a cross-section through the shoe on line or a: of Fig. 1; Fig. 4, a side elevation of the movable section of the shoe, showing the inside face; Fig. 5, a top or plan view of the movable section of the shoe; Fig. 6, a longitudinal section on line y y of Fig. 4; Fig. 7, a side elevation showing the outer face of the shoe; Fig. 8, a side elevation showing the inner face of the shoe with the removable section removed; Fig. 9, a top or plan view of the shoe with the movable section removed; Fig. 10, a horizontal section on line 2 z of Fig. 8; F1g.l1,a side elevation showing such parts of a machine as required to illustrate the de vices for rocking the shoe, and showing also a portion of the devices for lifting the shoe as a whole.

The nature and object of this invention are to so construct a main or inner shoe of amowingmachine, upon which are supported and carried the finger-bar and cutting apparatus, that thefinger-bar can be tilted or turned in the line of ltslength, and on a line, or nearly so, with the pitman and knife-back, so that no cradle motion or vertical motion of the whole cutting apparatus takes place, the object being to so arrange this mechanism that the operator in his seat can raise or depress at will the points of the guard-fingers and cutters, to accommodate the cutters to different conditions of crop and to the surface of the field over which the machine is drawn, and so attach the cutting apparatus to the main shoe that the movement of the points of the guard-fingers, as described, will not throw the line of the guard-fingers out of parallelism with their original or normal condition.

In the drawings, A represents the circular main portion or body of the shoe, having, as shown, on its exterior face strengtheningfianges a, and having at its lower end side extensions, A, on the inside of the shoe, united by a cross-piece, A, so as to leave an open space below the round portion outward from the cross-piece A, as shown in Fig. 10, and this circular portion or main body of the shoe has a forward extension, A with a bearing, a, for the axle or bolt which supports the wheel carrying the forward end of the shoe, and the body portion has a rearward extension, A, forthe attachment of the supportingbar of the main frame of the machine, the bar having its end located between the cars a and a, and being held in place by a pin or bolt passing through a hole in the ears, as usual, and, as shown, the forward end of the main portion of the shoe is provided with a bearing, a, to receive the end of a guard or brace-rod running to the main frame or other portion of the machine. (Notshown) The curved portion A of the main part of the shoe has an interior wall or face, which terminates at the bottom with the opening formed by the cutaway portion, and, as shown, the inner wall or face of the cross-piece A is provided With a curved recess, a, the circle of which is of less diameter than the circle of the holeformed by the inner wall of the portion A, but the center of which corresponds with the center of the hole of A.

B is a circular or bearing portion of the secondary part of the shoe, which, when the parts are together, has its exterior wall or face fitting the interior wall of the part A, and the end or bottom of the part B is united by a web or plate, B, formed therewith, which plate extends out beyond the line of the side of B, as shown at B. This extension B comes within the space between the side extensions, A, and cross-piece A. The end face or wall of the extension B is provided with a circular flange or rib, b, which, when the parts are together, fits into the recess a, and, as shown, at the front and rear of the extension B are flanges b, the exterior face of which is curved to fit the curved face on the walls of the extensions A, and form a bearing between the extension B and the walls of the extensions, A, and, as shown, the flange or rib b extends across the full width of the bottom B and extension B, and

the plate formed by B B fits the opening left in the bottom of themain portion of the shoe.

The bearings for the secondary portion of the shoe are furnished by the interior of the curved portion A and the recess a and flange or rib b. This bearing between the parts A and B being formed on one side of the shoe by the extension and interior surfaces, and

which extend throughout the entire surface to the inside face of the circle B, and the body of which extends up and lies in contact with the inside face of the circle A, and its upper end, which projects above the upper face of the circle A, is provided with a head, 0', to receive a connecting rod or link. As shown, astop, 0, is cast or formed on the face of the ring B, to engage with the rear edge of the arm 0, and a stop, 0 is cast or formed on the face of the ring A, to be engaged by a flat or stop face, 0, on the front edge of the arm 0. The stop 0 acts as a brace to take the strain from off the bolts 0, and the stop 0 in connection with the stop face c, furnishes the means for limiting the forward throw of the arm 0, and consequently the forward movement of the ring B and downward movement of the plate or bottom portion of such ring.

D is a rod or link attached at one end to the head 0, the attachment, in the form of con struotion shown, being by means of nuts d, which can be adjusted forward and back on the rod to adjust the movement of the arm 0. This rod or link D runs back, and is attached at its other end to a lever operated by the driver of the machine.

E is a guide-clip, attached at one end by a bolt, 6, to the circle B, and extending around the inner edge of the circles A B and over the top of the circle A, as shown in Figs. 2 and 3, and forming a stop against end movement of the secondary part of the shoe and a guide for the rocking movement or oscillation of the ring or circle B within the ring or circle A, and this guide-clip E, in connection with the arm 0, furnishes one of the means by which the two parts of the shoe are locked together, so as to leave the secondary part free to turn in the main part without liability of any great amount or degree of end-play.

F is the bar to which the guard-fingers F are attached in the usual manner, this bar at its inner end being secured by bolts f, or otherwise, at the rear side of the bottom or plate portion of the secondary part of the shoe between the walls of a recess formed in the upperface of such bottom or plate portion back of the rib or ledge b. V

G is a cutter-bar, to which the cutters or knives are secured, as usual. This bar is located forward of the bar F, and lies within the recess therefor in theguard-fingers, to bring the knives or cutters in proper relation with the fingers to operate as usual. This cutterbar G has at its inner end, as shown, an eye at the point G, forconnecting with the driving-pitman, which eye has its center in line with the center of the circle of the hearing or ring portion B of the secondary part of. the shoe, so that the center of motion of such part driven is a common one, by which means the point of thefingers and cutters or knife can be oscillated up or down without destroying the connection between the cutter or knife and its driving-pitman; and it will also be seen that, the two centers being at a common and the point at which the sickle or knife is point, the pitman is free to act irrespective of the position of the cutting apparatus.

H is a lever, pivoted at h to the frame of the machine, and extending up to a point-where its upper end will be within reach of the driver, and having attached to its lower end the rear end of the rod or link D, as shown in Fig. 11. At the upper end of this lever H is a bellcrank lever, h, connected with a rod, h,which in turn is connected to a sliding catch, h, moving in guides h on the side of the lever.

I is a segmental plate attached to the frame of the machine to coact with the lever H, the upper edge having notches i, to receive the end of the sliding catch h and lock the lever H forward or back, or in any position desired to hold the arm 0 in a forward or back or other position, as required for the position of the cutting apparatus.

The dotted lines in Fig. 11 show the position of the parts when the cutting apparatus is up, and the fulllines the position of the parts when the cutting apparatus is down.

J is asupport for the shoe, madein two parts, hinged together and pivotally connected to the shoe and the frame, and a lifting-lever, by which the shoe and cutting apparatus can be raised a hinged connection, as usual, with the shoe, by which it can be folded up to travel from place to place, such construction, however, forming no part of this invention, and being therefore not shown.

The feature of supporting and carrying the cutting devices by the oscillating secondary part of the shoe is an important one in the construction of mowers, as it enables the cutting apparatus or the points of the guards to be oscillated up or down without disturbing the main portion of the shoe, which can 'run in the same plane, irrespective of the position of the cutting apparatus, and this benefit will accrue to the construction .if the pitman is connected to the cutter or knife or to the crank- I x 5 bodily, as usual, the cutting apparatus having pin, in the usual manner, by aball-andsocket joint,which joint willpermit of the oscillation of the cutting apparatus.

XVhat I claim as new, and desire to secure 5 by Letters Patent, is-

1. An inner or main shoe for a mowinginachine, consisting of two parts, one within the other, the inner part supported at the top and bottom on the outer part by segmental IO bearings, the upper bearing being formed on segments of circles of different diameter from the bottom or side bearing, whereby the two points of bearing are coacting to resist the strain in raising the cutter-bar and the strain r 5 from the thrust of the cutting apparatus, substantially as and for the purpose specified.

2. A main shoe for a mowing-machine, composed of two segmental parts, one part working within the other and held together by the 4. The circle or ring A and circle or ring B, e

in combination with the arm 0 and guide-clip E, for maintaining the rings against end movement, substantially as specified.

GEORGE HERMAN BARTLETT. Vitnesses:

ROBERT Woo'r'roN, CHAS. R. WooT'roN.

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