US660838A - Rubber-tire-setting machine. - Google Patents

Description

No. 660,838. .Pat ented .0 1. 30, I900.

' W. S. BROOKS.

RUBBER TIRE SETTING MACHINE. (Apph 0 man 15 1900 (No Model.)

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UNITED STATES PATENT OFFICn.

WILLIAM SAMUEL BROOKS, OF AKRON, OHIO, ASSIGNOR TO THE GOODYEAR TIRE AND RUBBER COMPANY, OF SAME PLACE.

RUBBER-TlRE-SETTING MACHINE.

SPECIFICATION forming part of Letters Patent No. 660,838, dated October 30, 1900.

Application filed May 15, 1900.

To all whom it may concern:

Be it known that 1, WILLIAM SAMUEL BROOKS, a subject of Victoria, Queen of Great Britain and Ireland, residing at Akron, in the county of Summit and State of Ohio, have invented a certain new and useful Improvement in Ru bber-Tire-Setting Machines, of which the following is a specification.

My invention has relation to improvements in machines for setting solid-rubber tires having wires running lengthwise through them in channeled metallic tires mounted on the wheel-felly, drawing the wires tightly and uniting their ends, and forcing the rubber along the wires to cover the joint and uniting the ends of the rubber tire.

The objects of my invention are to provide new and improved means for operating the jaws to grasp the opposite ends of the wires to finally draw and hold them together for brazing, to provide an improved clutch for grasping the wires that are to be first drawn tightly while the other ends are held against movement and improved means for drawing the wires so grasped, to provide improved devices for drawing or stripping the rubber forward on the wires to the joint, and generally to present a new and improved machine of the class designated that shall be capable of being rapidly operated to secure the proper and accurate setting of the tire.

To the aforesaid objects my invention consists in the peculiar and novel construction, arrangement, and combination of parts hereinafter described and then specifically pointed out in the claims, reference being had to the accompanying drawings, forming a part of this specification.

In the accompanying drawings, in which similar reference-numerals indicate like parts in the different views, Figure 1 is a, front elevation of my machine; Fig.2, a side elevation; Fig. 3, a front elevation with the wire-drawing mechanism removed to show the operation of the'd'evice for drawing to gether. the rubber tires on the wires; Fig. 4;, a side elevation, enlarged, of a part of the supporting-post and wire-grasping jaws; Fig. 5, a side elevation, enlarged and in section at the line a: a; of Fig. 6, of the device for first drawing the wires 5 Fig. 6, a horizontal sec- Serial No. 16,804. (No model.)

tion of the device at the line y-of Fig. 1; Fig. '7, a View, enlarged, of the clutch for first drawing the wires; Fig. 8, a section of the same at the line 2 z of Fig. 7; Fig.9, a plan, enlarged, of the device for drawing or stripping the tires on the wires for uniting the ends; Fig. 10, a section of the same at the line w w of Fig. 11; and Fig. 11, an elevation, looking from the left, of Fig. 9 with the handle in section.

Referring to the figures, 1 is a hollow metallio supporting-post provided'with a suitable base by which it may be secured to the floor and having a flat vertical face in which is a slot 2, having raised ridges on each side and preferably planed, and a similar slot in the back face. The upper part of the post is offset to the front and terminates in a plate.

3, having vertical faces and extended to the right and left for a purpose to be stated. Secured to the back of the plate 3 is a double bracket 4:, the back face of which is to permit of fastening the machine to a wall or post for steadiness when required. A vertical screw 5, provided with a hand-wheel 6, is

fitted to run freely in the bracket 4 and extendsdown through the post 1 below the slot 2 and at one side of the slot, as appears in v Fig. 1, so as to pass a bolt in the carriage, to

be described.

Fitted to slide in the slot 2 is a carriage 7 having within the post 1 a screw-threaded opening that runs on the screw 5 and bears a horizontal revoluble bolt 8, provided with cones 9, adapted for longitudinal movement to bring the Wheel in alinement with the wiretightening jaws. The front end of this bolt is screw-threaded, and on.it is mounted a hand-wheel nut 10, by which the outer cone 0 "can be forced toward the inner one.

The double bracket 4. is secured by two bolts 11, which project in front ofthe head 3. On these are'severally freely mounted twolike bars 12, and hereinafter referred to 5 as jaws, in the upper ends of which arepiv- .otally mounted nuts 13, that extend back and severally run on the opposite parts of a right and left handed screw 14, provided with a hand-Wheel15. This screwis centrally freely :00 supported in a vertical bracket 16, bolted to the face of the plate 3, and the jaws 12 are pivotally connected with the ends of a yoke 40. Loosely connected with each jaw 12 by means of a bolt 17 is a parallel jaw 18, with its upper end forked, and in this is pivotally mounted a cam-lever 19, arranged when the longer end isrocked outward to press against the bar 12 and force out the upper end of the jaw 18, thus throwing the lower end inward. These lower ends have oppositely-disposed grooves, and between them, also supported by the bolt 17, is a central jaw 20, similarly grooved, the three so arranged as to grasp the tire-wires and hold them firmly when the cam-lever is rocked outward.

In the right extension of the plate 3 is secured a wrist 21, on which is freely mounted a small drum 22, having a projecting flange 23, in the edge of which are cut ratchet-teeth. On each side of the flange 23 are two washers 24, having like lugs 25 depending from one side, between which lugs is pivotally mounted a lever 25, with its shorter end shaped to form a pawl adapted and arranged to engage the ratchet-flange 23, by which means the drum 22 is revolved.

Pivot-ally mounted on one of the bolts 11 is a pawl 26, arranged to engage the ratchet and retain it when the lever 25 is released to return for another stroke.

In one side of the drum 22 is a recess (shown in Figs. 7 and .8) in which is snugly fitted the clutch for grasping the tire-wires, which consists of a short solid cylinder 27, having in the upper face a truncated wedgeshaped channel 28, from the bottom of which channel a slot 29 extends to the other face. In the channel 28 is a wedge 30, enough smaller than the channel to permit wires to lie freely on each side when it is drawn toward the broader part and to engage and clamp them against the sides when it is drawn in the opposite direction, and this wedge is retained against dislodgment by a screw 31, that passes up through the slot 29.

In operation the wheel is mounted on the bolt 8 between the cones 9, which are drawn together to clamp and center the hub, and is then raised, by means of the screw 5, enough to permit the jaws 12 18 to enter the chan neled tire The rubber tire 33 is then placed in the channeled tire and the wires from the right end secured in the right jaws. The wires from the opposite end are passed freely between left jaws and carried to and into the clutch in the drum 22, on opposite sides of the wedge 30, which by a slightpush forward clamps them. To insure this clamping, the sides of the channel may be slightly grooved to more securely hold the wires, and the sides of the wedge may be corrugated where a great strain is to be produced. The drum 22 is then turned, by means of the lever-pawl 25, to wind the wires thereon until sufficient tension has been secured, when the left jaws are closed upon them and the wires cut at such distance as will permit sufficient length for lapping and brazing.

After the wires are brazed the ends of the wires are cut away, the jaws released, and the wheel lowered sui'ficiently to permit the joint to be free from parts that will interfere with stripping the rubber along the wires to bring the ends together. To strip or slide the rubber on the wires, two plates 34 are used, each bent at the lower end to pass beside and in under the rubber tire. As these plates may be used with a variety of widths of tires, they are of such size as to overlap on narrow tires, as shown in Fig. 11. Each plateisreinforced at the outside upper edge by a bar 36, that projects beyondthe plate, and both have holes near their centers for the pivot of a cam-lever, to be described. The advancing edges of the plates 3% 35 along the parts that go under and beside the tire are ground from the inside to a thin edge, and to the projecting end of each bar 36 is pivotally attached a hook 37. After the Wires have been brazed and out and the Wheel lowered, as just described, the bent plates 34 35 are inserted under opposite sides of the rubber tire and the hooks 37 passed over the ends of a rod 38, that is free in a hole in the left extension of the plate 3. A cam 39, havinga rearwardlyprojecting handle, is then pivotally mounted between the plates, secured by a bolt and wing-nut 41. The top of the wheel is then moved to the right to get the plates a sufficient distance back of the joint and then gradually turned in the opposite direction, the handle of the cam being pressed. The operation compresses the rubber and forces the fullness toward the joint until the ends of the rubber tire meet. In some instances, particularly in heavy tires, it may be found necessary to repeat this operation on the opposite side of the joint, which is readily done by continuing the motion of the wheel until the plates pass the end of the tire and enter under the other end, their sharpened edges permitting this, and then pass partially or completely around until the operation is successful in bringing the ends of the tire together. The plates are then released and removed and the ends of the tire cemented, thus completing the operation.

By the foregoing construction I bring the felly in alinement with the jaws and drum, and by supporting the drum on the same plate with the posts of the jaws I secure great rigidity to resist strain.

Having thus described my invention, I claim as new 1. In a rubber-tire-setting machine the combination with a supporting-post having an oilset head, a bracket secured to the rear thereof and a carriage adapted to slide in a slot in said post and means for sustaining revolubly a Wheel on said carriage, and an adjustingscrew running through said bracket and post and means for turning said screw, a pair of radially, adjustable arms and clamping device mounted thereon to retain the ends of the wire, a winding-drum revolubly mounted IIO in a winding-drum, having a truncated, conical channel in one face with a sliding Wedge arranged and adapted to move in said channel to compress the wires against the sides, substantially as shown and described.

. In testimony that I claim the above Ihereunto set my hand in the presence of two subscribing Witnesses.

WILLIAM SAMUEL BROOKS.

Witnesses:

C. P. HUMPHREY, G. E. HUMPHREY.

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