US757432A - Machine for rolling wheels. - Google Patents

Description

No. 751,432.- PATENTED APR@19,1'904J F. P. BATES. r

MACHINE FOR ROLLING WHEELS.

' APPLIOATION run NOV. a, 1902. no uonnL. 4 SHEETS-SHEET 1.

WITNESSES: f

IN VENTOI? -7 4Mb W ATTORNEY m: Noams nzYzns cu. nmqumm wnsumorcm a u No. 757,432." PATENTED APR. 19,1904.

I P. P. BATES. I MACHINE FOR ROLLING WHEELS.

APPLIGATION FILED NOV- 3, 1902.

.NO MODEL. V 4 SHEETS-8HEEIT 2.

" mlagg l I ///;A Eli-WV W/TNESSES BY E A TTOHNE Y NORRIS Fcrzni w. Pwnuumo. wAsnmc'rou u c PATENTED APR. 19, 1904'.

v No. 757,432.

' F. P. BATES. I MACHINE FOR ROLLING WHEELS.

nrmoumn mum nov. s, 1 02.

-4 sums-sun's.

N0 MODEL.

in I

Ill

IN VENTOH WITNESSES ATTORNEY No. 751,432. PATENTED APR.19, 1904.

REBATES. V MACHINE FOR ROLLING WHEELS. IIIIIIIIIIIIII ED NOV. 3, 1902. 4 nnnnnnnnn EST 4.

no MODEL.

UNITED STATES Patented April 19, 1904.

PATENT OFFICE. f

FRANKLIN P. BATES, OF INDIANAPOLIS, INDIANA.

MACHINE FOR ROLLING WHEELS.

SPECIFICATION forming part of Letters Patent 757,432, dated April 19, 1904.

' Application filed November 3, 1902- .l'o all whom it may concern:

Be it known that I, FRANKLIN P. -BATES, of Indianapolis, county of Marion, and State of Indiana, have invented a certain new and useful Machine for Rolling Wheels; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, in which like figures refer to like parts.

The object of this invention is to form the surface of bodies-such as wheels, sheave-pulleys, and the likemade of wrought or forged steel or iron. It has been customary to make wheels, sheave-pulleys, and the like by casting them, the result being a comparatively heavy article without great wearing qualities. With this invention wheels capable of doing the same work can be produced more cheaply and are much lighter and are vastly more durable.

In carrying out this invention the metal body when treated is first drop-forged, so as i to form the sides and hub thereof, the rim being left in an oval or in an unfinished form. The metal body thus formed is heated to a suitable degree and placed between a pair of rotary clamping-heads which preferably fit snugly against the sides and hub of the heated metal body. The rollers are pressed against the periphery of the metal body as it is rotated to form the peripheral surface thereof as desired. In this way a wheel can be formed with a regularly-formed tread or peripheral recess with regular and uniform flanges on each side thereof, so that the wheel will be in a finished form when taken out of the machine.

The nature of my invention will be more fully understood from the accompanying drawings of one form of machine for carrying out my invention and the following description and claims.

In the drawings, Figure 1 is a perspective of such a machine. Fig. 2 is a central vertical longitudinal section through the machine asshown in Fig. 1. Fig. 3 is an enlarged detail of the screws orv means for forcing the rollers up against the metal body as it is being formed. Fig. 4 is a central vertical trans- Verse section of the machine. Fig. 5 is a hori- Serial No. 129,921. (No model.)

treated and the parts acting and holding such metal body at the beginning of the operation. Fig. 6 is the same at the end of the operation. Fig. 7 is a section on the line 7 7 of Fig. 4.

In detail a general main frame 10 is provided, mounted on suitable legs 11 and having longitudinally and horizontally "disposed in its upper part the bearings 12 for the shafts 13 and 14. There is an opening or working place in the middle of the frame between the extensions 15 of the frame, which are strengthened by the bolt 16. The shaft 13 is mounted in one end of the machine and the shaft 14in the other end, and the inner ends of both extend into the working space referred to. The shaft 14 is rotatable, but has no longitudinal movement or play. The shaft 13 is rotatable and longitudinally movable for adjustment,

as will be explained. The inner ends of both shafts 13 and 14 are threaded, but reversely;

and each carry a clamping-head formed, preferably, of the part 17, secured on the shafts,

and a die 18. The outer end of the shaft 13 of the shaft 13 is adjustable with relationto the clamping-head on the shaft 14, and by this means the metal body or wheel being treated is clamped in place between the two clamp-- ing-heads. While I show one form of means for moving and clamping the head on the shaft 13, I do not wish to be limited to such means.

The adjacent faces of the dies 18, forming a part of the clamping-heads, are made, preferably, to conform to the surface of the sides of the wheel or metal body to be treated, so as to hold it rigidly when clamped, and said clamping-heads, with the metal body clamped between, are. rotated by the gear 22, that is splined on the shaft 13. Said gear 22 is driven by the pinion 23 on the shaft 24, mounted in the lower part of the frame 10, as shown in Fig. 2. The shaft 24 is the main driving shaft of the machine, it being driven by the two triangular plates 20 and the base-plates 27 and the tie- rods 28, 29, and 30. The purpose of this is not only to furnish mounting for the shaft 19, but also for the shafts 13 and 14, to abut against for the purpose of receiving andresisting the lateral strainon said shafts 13 and 14 when the metal wheel or other body is clamped between the clamping-heads. This yoke therefore cooperates with the shoulder s in the bearings-12, which resist the lateral strain of the clamping-heads 17. The yoke alsorenders the shafts 13 and 14 rotatable with less friction.

Under the working space in the center of the machine there is a transverse horizontal guideway33,'to be seen in cross-section in Figs; 2 and 7, which contains the blocks 34, that carry the rollers for forming the surface ofthe metal body to be treated. The blocks 34 are each integral with an upwardly-extending post 35. Said posts are vcentrally slotted ,at'their upper ends at 36, in which slots the rollers 37 and 38 are mounted by horizontally-disposed arbors 39. There is one of these rollers 37 and 38 on each side of a center line running through the two shafts 13 and 14, that appears in Figs. 1 and 4.

The blocks 34 are centrally bored to receive a shaft '40, which extends entirely through both blocks and is held from any'longitudi Figs. 3 and 4, that engages thenuts 45, which fit in an enlarged opening within the blocks 34 and are adjustably secured to said blocks by set-screws 46. The'shaft 40 is driven by gear 47, secured on one end, that meshes with; the pinion 48, that is mounted on the shaft 49,

carried in the frame, as shown in Fig. .4, and

having on its inner end a bevel-gear 50, that is driven by a bevel-pinion 51,.mounted on the shaft 24. A clutch mechanism 52 throws said bevel-pinion 51 in and out of gear with the bevel-gear '50. The shaft 40 has a;

' hand-wheel 53 secured on the end opposite. the.

gear 47.

The roller 38 slightly oval, as shown in Figs. 5 and 6, while the roller 37 is shown with a flat periphery.

The purpose of this difference is to use the roller 38 in advance on the metal body to be treated, as'the oval form of the roller more readilyfdisplaces the metal in the periphery of the metal body being treated, and the roller said rollers.

1 rail.

is made with aperiphery;

37, with the flat periphery, subsequently comes into engagement with the periphery'of the metal body being treated and gives to it its final form. To accomplish this mode of operation, the wheel 38 is set in closer to the center of the machine by the set-screw 46 at the left-hand end, as shown in Fig. 4, than the roller 37. This causes the roller 38 toengage the metal body first. In order to cause the roller 37 to finish the work, it must move inwardly more rapidly than the roller 38, and to bring about this result the threads on the shaft 40, which ultimately cause the inward movement of the roller 37 are made coarser than at the opposite end of the shaft 40. While the rollers 37 and 38 are herein shown to give a certain form to the metal wheel that is, a recessed tread portion witha flange on each sideI do not wish to limit myself to any. particular form of said rollers 37 and 38 or to any particular sort of work they are capable of accomplishing.

The general. operation of the machine will now be explained. The metal body to be treated, such as the wheel 54, after havingbeen drop-forged to form the sides thereof and heated, is securedbetween the clamping-heads on the inner ends of the shafts 13 and.14 and securely clamped thereinby the hand-wheel 21. The metal body or wheel 54 will then be rotated through the driving mechanism' above describedv for driving the shafts 13 and 14. The bevel-pinion 51 is thrown into gear withthe gear 50, which causes the shaft 40 to rotate, and 7 that gradually moves the rollers 37 and 38 up to the wheel and presses said rollers into the; periphery thereof in the order preferably that has heretofore been described for the action of The effect of said rollers is to centrally displace the metal in. the periphery of the. wheel being formed, so. as toma'ke an anform regular and uniform flanges on said wheel that extend .beyond the tread portion thereof to hold on a pulley-rope or otherdriving =means or to guide the wheel in any use to which it may be put, such as running on :a. When the wheel is thus completed, the

bevel-pinion 51 is thrown out of gear withthe bevel-gear 50 and that stops the inwardmove- :ment of the rollers 37 and 38. :By reversing the shaft 40, through the instrumentality of the hand-wheel 53, the rollers 37 and .38, are

separated and disengaged from thewheel be- 5 ing formed, and the'clampingshead .is released by the reversing of the hand-wheel 21, whereupon the wheel being formed can be removed and will be in its completed form;

The mechanism shown herein to illustrate the general nature of my invention is to some extent a specific form,.and as it is arrangedlto make a certain style of metal wheel Iwish toexplain further some of the parts in connection with Figs. 5 and 6. Those figures show the position of the clamping-heads and rollbeing treated, so as toclamp the same at the hub and web portions tightly. They do not clamp the rim portion tightly, but, in fact, leave ample space for the spreading of the metal in the rim, as shown. At that point the dies should be formed to give the desired shape to the sides of the rim. i

As shown herein, the die has an outwardlyslanting portion and an inwardly-slanting portion 61, so as to curve therim as desired. The dies also have a straight face at 62 for the purpose of furnishing a guideway for the rollers 37 and 38, the idea being that said rollers shall fit rather snugly between the dies and operate between the straight faces 62 thereof.

This prevents the escape of metal and also guides the rollers. In what is shown herein one of the rollers 38 is somewhat oval in crosssection to effect the initial displacement of the metal in the wheel being formed, while the other wheel is plain and flat togive the final form.

It is obvious if the tread portion of the wheel is desired to be different the rollers should be correspondingly changed in form. While the wheel herein shown is a lumber-truck wheel adapted to run on a railway, the wheel might be made with a different rim and for different purposes.

What I claim as my invention, and desire to secure by Letters Patent, is

1. A machine for forming the surface of metal bodies including a pair of rotary clamping-dies for holding and rotating the metal body, a pair of rollers adapted to bear radially against the peripheryof the metal body and oppositely located, one of said rollers having its periphery convex in cross-section and the other substantially straight in cross-section,

and means for forcing said rollers against the metal body.

2. A machine for forming the surface of metal bodies including a pair of clampingheads, a pair of shafts mounted in the same horizontal line and carrying said clampingheads on their adjacent ends, a suitable framework in which said shafts are mounted, means for rotating said clamping-heads when the metal body is clamped between them, a yokeshaped frame acting against the ends of said shafts for resisting the lateral thrust of said shafts while the metal body is clamped, and a roller adapted to press against the periphery of the metal body as it is rotated.

3. A machine for forming the surface of metal bodies including a pair of clampingheads, a pair of shafts mounted on the same horizontal line and carrying saidclampingheads on their adjacent ends, a suitable framework in which said shafts are mounted, means for longitudinally moving one of said shafts, a yokeshaped frame between the ends of which said shafts and the means for longitudinally adjusting one of them is. mounted, so that said frame will resist the lateral strain on saidparts when the metal body is clamped between said clamping-heads, and means for rotating said shafts.

4. A machine for forming the surface of metal bodies including means for holding and rotating the metal body, a pair of rollers adapted to engage the periphery of the metal body as it is rotated, means for moving them toward each other and the metal body simultaneously, and means for adjusting the position of said rollers with reference to the metal body, so that one of them will engage and act upon the metal body in advance of the other.

.5. A machine for forming the surface of metal bodies including means for holding and rotating the metal body, a pair of rollers adapted to engage the periphery of the metal body as it is rotated, one of said rollers having its periphery formed with a'central annular extension adapted to spread and laterally displace the metal, and the other roller act as a metal-displacing roller, and the other a finishing-roller, means for adjusting the position of said rollers with reference to the metal body, so that the metal-displacing roller will first engage and act upon the metal body, and means for moving said rollers toward each other and the metal body at variable speeds.

7. A machine for forming the surface of metal bodies including means for holding and rotating the metal body, a pair of rollers adapted to engage the periphery of the metal body as it is rotated, a pair of blocks slidably mounted in the framework of the machine in which said rollers are mounted, said blocks beingon opposite sides of the means for holding the metal body, a shaft extending through said sliding blocks, said shaft having reverselythreaded portions near the ends thereof, means for preventing longitudinal movement of said shaft, means for driving the shaft, and nuts surrounding the threaded portions of said shaft that are secured to said blocks whereby the latter are actuated. I

8. A machine for forming the surface of metal bodies including means for holding and rotating the metal body, a pair of rollers adapt ed to engage the periphery of the metal body as it is rotated, a pair of blocks slidably mounted in the framework-of the machine in-which said rollers are mounted, said blocks being on opposite sides of the means for holding the metal body, a shaft extending through said sliding blocks, said shaft having reverselythreaded portions near the ends thereof, .one

threaded portion being coarser than the other, means for preventing longitudinal movement of said shaft, means for driving the shaft, and nuts surrounding the threaded portions of said shaft that are securedto said blocks whereby the latter are actuated.

9. A machine for forming the surface of metal bodies, including means for holding and rotating the metal body, a pair of rollers adapted to engage the periphery of the metal body as it is rotated, one being a metal-displacing roller and the other a finishing-roller, a pair of blocks slidably mounted in the framework of the machine in which said rollers are mounted, said blocks being on opposite sides of the means for holding the metal body, a shaft extending through said sliding blocks, said shaft having reversely-threaded portions near the ends thereof for actuating said roller-carrying shaft that are secured to said blocks whereby the latter are actuated.

In witness whereof I have hereunto afiix'ed my signature in the presence of the witnesses herein named. H

' FRANKLIN P. BATES,

Witnesses:

V, LooKwooD, NELLIE 'ALLEMoNe.

Images