US12273A - Careiage-seat - Google Patents

Description

UNITED sTATEs PATENT oEEicE.

GEO. R. COMSTOCK, OF MANHEIM, NEW YORK.

CARRIAGE-SEAT.

Specication of Letters Patent No. 12,273, dated January 23, 1855.v

To all whom t may concern.'

Be it known that I, GEORGE R. CoMsTocK, of Manheim, Herkimer county, Statey of New York, have invented a new and Improved Method of Constructing the Bodies and the ySeats of Two-Wheeled Carriages, which I weight of its load upon the horse throughv the shafts, when the carriage is standing or moving upon level ground, whenever the ground varies from that level, the pressure is varied upon the shafts so as to aect disadvantageously the draft of the horse, that is when the carriage is going up ascending ground, t-he load will be thrown behind the perpendicular and when going down descending ground, before the perpendicular, in the first case taking part of the weight off from, and in the secondvcase adding to the weight from the horse. Now -it is to remedy this diiiiculty and to effect as nearly as may be an equalization of the pressure upon the horse that my invention is intended to effect. p

Figure 1 represents a perspective View of a gig body and seat made according to my plan. Fig. 2 a diagram to show the eifectof shifting the seat in different positions of the vehicle.

A, A, A, A, shows an ordinary gigbody, the seat or upper body B, B, being made separate from the body, and attached to it by loops underneath it which slide upon rods, the ends of which are shown in the drawing at C C, and extend from the front to the rear of the upper part of the box. To the underside of the seat are attached two racks, one near each end of the same, (the further one only is shown in the drawing at r.) Below the seat and extending from side to side, is a shaft S to which under each rack is a toothed quadrant Q working into the racks. The shaft S is operated by a lever L, attached near the ofi' end thereof, so as to be conveniently operated by the right-hand of the driver. The lever moves in a slot D along the upper edge of the arm of the seat, being held bystop-notches a, b, 0, inthe proper position for the disposition of the seat, when in the notch. a holding the same as far back as it can be moved, when in cas far forward, and when in b in the proper position for the disposition of the load when traveling on level ground. When moving' on Vrising ground the lever is to be thrown for ward, by which the lo-ad will be brought directly above theaxle. When moving down descending ground the lever is to'be thrown back by which the same result will be eected and the load maintained directly over the axle, as shown in Fig. 2 where the block lives y.

represent the gig onan ascending grade, with the seat thrown back, and the red lines, the gig on a descending grade, each grade with the seat thrown forward. A B the line perpendic= ular to the axis of the wheel. It will be seen that in the different positions the point C, assumed to be the center of gravity of the load is directly in the line A, B. The ad vantage of this arrangement in relieving the horse from the annoyance and inconvenience of a load varying with every inequality of the ground, will be appreciated by every one practised in the use of animals of burden, with loaded carriages.

I claim- The method of adjustingthe load carried in two wheeled vehicles, so as to keep the pressure upon the animal drawing the same, equal or nearly so, whether the carriage be moving upon level or uneven ground, by shifting the seat, or upper body backward or forward using an axis with toothed quadrants operating upon toothed racks, attached underneath said seat-or body, or by the vuse of any mechanical equivalent.) Said axis being maneuvered by a lever which passes up through the arm of the seat or upper body,

substantially as set forth in the within specification the said mechanical apparatus being in combination with the carriage body and seat.

v GEORGE R. COMSTOCK.

Witnesses RICHARD PATRICK DE WI'rr, W. C. MILLER.

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