US444166A - Tire-setting machine - Google Patents

Description

J .3. WE TIRE SETTING M 2 Sh eets Sheet 1. ST.

AGHINE. No. 444,166. Patented Jan. 6, 1891.

(No Model.) Sheets-Shet2. J. B. WEST.

TIRE SETTING MACHINE.

,Patented Jan. 6, 1891.

df e

UNITED STATES PATENT OFFICE.

JONATHAN 13. WEST, OF ROCHESTER, NE\V YORK.

TIRE-SETTING MACHINE.

SPECIFICATION forming partof Letters Patent No. 444,166, dated January 6, 1891.

Application filed May 6, 1890. Serial No. 350,821. (Nomotlel) To all whom it may concern.-

Be it known that I, JONATHAN B. WEST, of Rochester, in the county of Monroe and State of New York, have invented a new and useful Improvement in Tire-Setting Machines, which improvement is fully set forth in the following specification and shown in the accompanying drawings.

My invention relates to machines for pressing tires when cold upon wagon-wheels; and it has for its object the addition to the machine of devices for truing or straightening the tires as to the planes of their edges while they encircle the wheels and before they are pressed thereon.

The machine shown in the drawings, to which my present improvement is attached, is substantially the same as that shown in my pending application, Serial No. 329,793 filed November 9, 1889.

The ties are usually uneven or winding when they come from the forgethat is to say, their edges do not truly correspond to planesand when pressed upon the wheels in this condition they have to be subsequently straightened by being hammered edgewise upon a flat surface. It is found to be very much better to bring the tires true to a plane before being set or pressed upon the Wheels, and this my improved machine does, the truing and the setting of the tire being both done at one operation.

My invention is hereinafter fully described, and more particularly pointed out in the claims.

Referring to the drawings, Figure 1 is a plan of the compressing-jaws with my improved straightening devices in place; Fig. 2, a plan of apart of one of the pressure-levers; Fig. 3, a View of parts seen as indicated by arrow in Fig. 2, parts being sectioned,as on the dotted line 00 a; Fig. 4, a side elevation of parts of the machine, parts being shown in two posi tions by full and dotted lines, and other parts vertically sectioned; Fig. 5, a sectional elevation of a part of a pressure-lever; Fig. 6, a view" of a part seen as indicated by arrow in Fig. 5; and Fig. 7, a transverse section of an operating-lever, taken on the dotted line y y in Fig. 4 and viewed as indicated by the arrow pointed thereon. Figs. 2, 3, 5, 6, and 7 are drawn to a scale larger, and Fig. 1 drawn to a scale smaller, than that of Fig. 4.

Referring to the parts, the frame A of the machine, Fig. 4, the compressing-jaws B, the compressing or operating-levers O, and the driving-head D, with connections E for the levers, are the same as the corresponding parts shown and fully described in the pending application for patent above referred to.

To the frame I secure rigid divided holders or arms F, one being preferably placed under each of the compressing-jaws and opposite an operating-lever O for holding pressurelevers for straightening the tire a, H being the wheel in place.

The pressure-levers each consist of a yielding or elastic part d, with the parts G and b all united and held to turn on-a pivot 16 at the end of the arm F, as shown.

c is the head of the lever in position to bear directly upon the edge of the tire and the folly of the wheel. The elastic part cl of the pressure-lever is preferably made of steel, and it extends inward to apoint near the op erating-lever O. A roller bracket 6, rigid with the latter lever, reaches out to the part (1, the roller f of the bracket bearing directly upon said part (Z, as shown in Fig. 7.

Normally the pressure-lever occupies the position shown in dotted lines in Fig. 4, in which position the head 0 is drawn back and away from over the tire. The lever is held in this position by means of a spring g, joined rigidly to the part G in position to press against a part a of the holder F.

The horizontal part b of each of the press tire-levers may be a rigid piece; but I prefer to make it in sections, as shown, so that the outer or idle end may bend down out of the way, as appears in Fig. 5. The sections are so joined that no fleXure can result from an upward stress against the head 0.

The upper end of the partG of each pressure-lever is formed with an opening h, Figs. 5 and 6, through which the part 1) passes, the latter being formed with projecting pins i, Fig. 2, one of which rests in receptacles I: It, as shown. By means of these pins the part b may be shifted longitudinally, so as to act upon or straighten tires of difierent diameters. 'An adjusting-screw Z is passed vertieally through G to bear upon the part b to adjust the amount of the pressure of the pressure-lever upon the tire and folly and to adjust the lever to bear upon tires of different widths.

IVhen the compressing-jaws B are not in operation,the compressing or operating levers C occupy the position shown by dotted lines in Fig.4. The roller of the bracket c is then in contact with the downward-turned part a of the pressure-lever, as shown in dotted lines. Now when the driving-head D commenees to descend and carries the operatinglevers C outward, the rollers of the brackets rapidly run upward along the respective part a of the pressure-levers and over the bends r therein. This action of the operating-levers forces the pressure-levers to the position shown in full lines, Fig. 4, in which they firmly press the tire and telly down upon the plain surfaces of the jaws 13, causing them to touch atall points. pressure-levers occupies but a small partof: the time during which the operating-levers are moving outward, and takes place at the i connnencement of their outward motions and before the compressing-jaws begin to bear upon the tire. On account of this advance action of the pressure-levers the tire and felly are brought to a true plane before the former I is set or compressed upon the wheel. After a tire is thus trued and set and then released by the jaws it is found that it does not resame the untrue or winding form it had be- 7 fore being straigntened by the pressnre-levers. The upsetting oi the fiber of the iron during the process of compression fixes or sets it rigidly in the trued form of the tire, and the stress brought upon it by the action 1 of the pressure-levers becomes eliminated.

The parts (I being elastic or real springs, the pressure-levers act against the tire and felly with a yielding pressure and the parts of the machine are not overstrained.

The heads (.2 are preferably formed with downwardly-projecting parts or spurs 0, Figs. 3 and 4, which come against the outer surface of the tire, grooves 1) being formed in the segmental bloeks I to receive them, these blocks being in immediate contact with the tire. The parts or heads 0 are also formed with leaders or pilots '2', inclined at their under edges to guide the 'n'essure-plates safely onto the tire in their forward movements.

\Vhen the lovers C swing inward from an upward movement of the driving-head, the springs g throw the respective pressure-levers into the positions shown in dotted lines in Fig. t and draw them back clear from the This movement of the I wheel. This allows the latter to be removed from the machine and replaced by another tire and wheel.

i The heads 0 of the pressure-levers, it will i be seen, overhang the respective pivots t. On account of this, when these levers are released by the operating-levers C and returned to their positions of inaction by the springs I g the heads not only move backward from 1 over the wheel, but also move upward (or may move upward) off the wheel.

The floors of the grooves 17 are formed with a curved incline, as shown, so that the heads 0 may drop low to press a narrow tire and be i made to rise therefrom when they are drawn back.

\Vhat I claim as my invention isl 1. In a machine for setting wagon-tires, in-

I dependently-acting compressing-jaws moved f in radial directions against the periphery of the tire by levers pivoted to the frame, in

combination with arms or levers to press the tire down upon said jaws, and operators for said arms or levers, substantially as shown.

2. In a machine for setting wagon-tires, independently-acting compressingjaws moved in radial directions against the periphery of the tire by levers C beneath said jaws, in combination with arms or levers to press the edge of the tire, and operators for said arms, said operators acting to move the arms or levers against the tire in advance of or at a time before said levers 0 move said com pressing-jaws against the tire, substantially as and for the purpose set forth.

3. A machine for setting wagon-tires, having compressing-jaws to act against the pcriphery of the tire, and operating-levers beneath said compressing-jaws to drive the lat ter, in combination with arms to bear upon the edge of the tire moved by said operatinglevers for the compressing-jaws, substantially as shown.

4. In a machine for setting tires on wheels, compressing-jaws to act upon the periphery of the tire, in combination with pressure-levers to act against the edge of the tire, and operators for said pressure-levers, substantially as shown, said pressure-levers being each formed with a yielding part d at its lower or operated end, for the purpose set forth.

In witness whereof I have hereunto set my hand, this 2d day of May, 1890, in the presence of two subscribing witnesses.

JONATHAN 13. WEST.

Witnesses:

E. B. WHrrnonE, M. L. .lloDnnno'rr.

IIO

Images