US374998A - Machine for riveting iron carriage-wheels - Google Patents

Description

(No Model.) 3 sheetssheet 1.- A. P. RICARD.

MACHINE-FOR RIVETING IRON CARRIAGE WHEELS.

Patented Dec. 20, 1887.

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(No Model.) 3 Sheets-Sheet 2.

. A. P. RICARD. MACHINE POR RIVET-ING IRON GARRIAAGE WHEELS. N0. 374,998. Patented Deo. 20, 1887.

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3 Sheets-Sheet 3.

(No Model.)

A. P. RICARD.

MACHINE EOE EIVETING IEON GAEEIAGE WHEELS.

Patented Deo. 20.1887.

fnesses. Qa/ME UNITED STATESV PATENT OFFICE.

ARTHUR P. RICARD, OF TOLEDO, OHIO. p

MACHINE FOR RIVETING IRON CARRIAGE-WHEELS.

SPECIFICATION forming part of Letters Patent No. 374,998, dated December 20, 1887.

Application filed October 29, 1887. Serial No. 253,755.

To aZZ whom it may concern:

Be it known that I, ARTHUR I. RICARD, a citizen ofthe United States,residing at Toledo, in the county of Lucas and State of Ohio,` have invented certain new and useful Improvements in an Automatic Device for Riveting Metal Spokes in Vheel-Rims; and I do hereby declare that the following isafull, cleanand exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings,and to the letters of reference marked thereon, which form part of this specification.

My invention relates to an automatic device for riveting metal spokes in wheel-rims, and has for its object lto automatically present a spoke to be riveted in a position to be held rmly by a gripping device in such relation that an automatically operated riveter shall rivet the same to the rim of the wheel and then be Withdrawn to permit the wheel to make a sufficient turn to present the next spoke to be riveted.

Another object is to provide a chuck or wheel-holder, into which the wheel to be completed shall be secured in such a manner as to insure a true circle to the periphery.

A still further object is to provide a clamp for each spoke, that shall have a lateral Inovement to compensate for any irregularity of the same in the radial position from the hub.

Theinvention consists in the parts and combination of parts, as will be more fully described, and pointed out in the claims.

In the drawings, Figure l is a plan View of a chuck or wheel-holder and a portion of a table upon which the same is movably mounted. Fig. 2 is a cross-sectional elevation through the center of Fig. 1, and also showingin dotted lines a portion of a wheel secured thereon. Fig. 3 is a detail view of a spoke-clamp. Fig. et is a side view of the table, and showing in dotted lines the power-shaft and its connection with the mechanism. Fig. 5 is a top view showing the gripping device in engagement with the spokeclamp, and also showing the riveter and toggle-arms.

Like letters of reference indicate like parts throughout the several views. V

A designates the chuck or wheelholder composed of a series of threaded rods, D, jour- (No model.)

naled in a central hub, A, and a rim, E. The number of rods `D vary to suit the number of spokes of the wheel to be riveted. Each rod has upon its inner end abevel-gear,and has a squared outer end, E. The screwthreads upon the rods are alternately right and left hand, for a purpose hereinafter stated.

F are spoke-clamps,the body of each having a screw-threaded perforation through which a rod, D, passes.

F are clamping'jaws hinged to the body part at F and held in close relation to each other by springs F.

G are dies inserted into the jaws,and adjustably held in place by set-screws G within the jaws F.

G are semicircular grooves Within the dies, into which a spokeis gripped.

C is a rectangular plate to which the wheelholder is secured by being attached to the hub A.' This plate rests upon and slides in ways formed upon the table B.

J, Fig. 4, is a revoluble powershaft, having cams K and K and an eccentric, Q, secured thereon. The cam K is connected by means of a yoke, L, and pitman L with toggle-arms M and M, the toggle-arm Mbeing pivoted at M to the table B and the toggle-arm M being pivotally attached to a plunger, M, which abuts against a sliding frame, N, moving in ways upon table B. Cam K engages with a shoulder on yoke L, for the purpose of raising the same quickly when cam K has depressed the same and passes from engagement therewith. The cams are placed upon the shaft in such relation that their greatest lengths are at right angles to each other.

To frame N are attached arms N', which are pivotally attached to grapplearms N, having each a square shoulder, N at one end, for a purpose hereinafter stated. Arms N are fulcrumed at .O upon a crossbar, O, attached to table B.

T are coiled springs attached to frame N and to a fixed part -of the table.

Eccentric Q is connected by means of yoke R and pitman R with toggle-arms S and S, arms S being pivotally attached to table B at S and arm S being pivotally attached to a reciprocating plunger, T, having a rivetinghead, T.

Upon the outer end of shaft J is formed a ICO cam-shaped lug, J adapted to actuate a bellcrank lever, X, pivoted to the table at Y.

U designates a rod attached at one end to an arm of the bell-crank lever, and at the opposite end to a spring, V, attached to table B by being secured to a dependinglug, Z. The inner end, U', of rod U is screw-threaded and passes through a perforation in a lug,V, formed upon the bottom of plate C, and is held to any desired adjustment by means of nuts V.

P is acatch pivoted in standards upon frame N, and adapted to engage withv a lug upon plunger M, to hold frame N in its advanced position when the grapple-arms are in engagement with the spoke-clamp.

P is a frame connected to the table and extending across the ways into which plunger M moves, and in a position to'trip the catch.

II designates a short stud screwed into hub A of the chuck or wheelholder, onto which the hub of a wheel to be finished is placed, the spokes H radiating therefrom to the spokeclamps, and are firmly grasped by thesame in such manner that the end H of the spoke, or so much thereof as is to be riveted, protrudes at the opposite side of the dies in theclamps, as shown in Figs. 2 and 4. 1

The hub A of the wheel-holder is provided with ratchets I, corresponding in number with the number of spoke-clamps.

I is a spring-pawl attached to the table and engaging with the ratchets.

In operation the wheel is placed upon wheelholder A, the stud H passing through the hub thereof, the lower section of spokes-that is,

the spokes comprising one side of the wheel,

(there being eight on each side in a sixteenspoke wheeD-are placed within the dies in the spoke-clamps. The operator now causes the clampsF to move toward the rim of the wheel. This is done by revolving any one of the threaded rods D by means of a. crank fitting upon thesquared ends E of the rod. It will be-seen that as each alternate rod has a lefthand screw-thread the action of the bevelgears is to so revolve the rods that all of the clamps F will approach or recede from the periphery of the Wheel in unison, thereby tending to give the rim of the wheel atrue circle, and also to insure an even length to the spokes. Upon shaft J being revolved lug J depresses the free arm of bell-crank lever X, causing rod U to move plate C, and, as a consequence, wheel-holder A,toward the riveter. This movement of plate C causes pawl I to engage with .a ratchet, I, upon hub A', and gives the wheel-holder a one-eighth turn, thereby presenting a spoke directly in front of the riveter. Upon shaft J continuing its revolution, cam K forces yoke L and pitman L downward, causing arms M and M to straighten, thereby, throughA the medium of plunger M, moving frame M and causing grapples N to grasp the clamps F and hold the same firmly to place. At this time catch P engages with lug P and holds the frame N from back movement. Eccentric Qhas at this Vtoggle and withdrawing plunger M,atwhich time frame N is moved back (by the connection of catch P with plunger MW) a sufficient distance to open the grapples, permitting the wheel-holder to move forward, as will presently appear. The catch P is now tripped by the free end of the same passing beneath frame P, permitting springs T to move frame N forward, closing the grapples to a certain eX- tent, ready to be opened by and be engaged with the spoke-clamp as it is pressed between the same as the wheel-holder advances. Simultaneously with this movementlug J passes off of the arm of bell-crank leverX, and spring IV moves the wheel-holder back a sufficient distance to permit it to turn upon plate C. Gam Qraises yoke R and, through its connectionwith the toggle S S, withdraws plunger I and riveter 'I" in position to again advance, when the operation just described is repeated.

It will be seen that at one revolution of the shaft the whole operation of turning the wheel- -holder, riveting a spoke, and separating the parts is accomplished.

While I have shown dies in the spokeclarnps adapted for a single spoke, I may arrange the same to clamp two spokes at the same time.

It will be understoodv that the number of rodsandspoke-clamps may be varied to suit the character of the wheel to be operated upon. It will also bevseen that the rods may all be formed with a rightfhand thread, and be given the proper direction of revolution by idlers, or in any other preferred manner.

Having described my invention, what I claim, and desire to secure by Letters Patent,

l. In a riveting-machine, a chuck or wheelholder having spoke-clamps movable radially from the center, as and for the purpose set forth.

2. In ariveting-machine, a chuck or wheelf holder having threaded rods, and spoke-clamps upon the rods adapted to be moved radially by therevolution of the rods, as and for the purpose set forth.

3. A chuck or wheel-holder comprising rods threaded alternatelyY right and left, each rod having a bevel-gear upon its inner end and a squared outer end, and spokeclamps mounted upon the rods in such manner asto move radially from the center of the chuck by the revolution of the rods, as audrfor thepurpose set forth.

4. In achuck or wheel-holder, spoke-clamps having hinged jaws held closed by yielding connections, as and for the purpose set forthB 5. In a wheel-holder, spoke-clamps having jaws adapted to be opened and closed for the IOC insertion or removal of spokes, each jaw having a die for clamping the spoke, as and for the purpose set forth.

6. In a device for riveting metal spokes in Wheel-rims, a power-shaft provided with a lug, and a bell-crank lever one end of which is in the path of the rotation of said lug, the opposite end being connected to a movable table having a Wheel-holder mounted thereon, as and for the purpose set forth.

7. In a device for riveting metal spokes in Wheel-rims, in combination with a spokeclamp, grapples connected with movable arms, said arms being reciprocated by means of a cam upon the power-shaft, as and for the purpose set forth.

8. In a device for riveting spokes in Wheelrims7 grapple-arms opened from and closing into engagement with a spoke-clamp by the reciprocation of a frame to Which the grapples are attached, as and for the purpose set forth.

9.' In a device for riveting spokes in Wheelrims in which grapples are opened and closed by the action of arms in connection with the 25 power-shaft, a catch attached to a frame and adapted to engage with a lug on the plunger, and springs connected with the table and frame, as and for the purpose set forth.

10. In a device for riveting spokes in wheel- 3o rims, in combination with a spoke-clamp, a riveter connected with arms operated by an eccentric upon the power-shaft, as and for the purpose set forth.

In testimonythat Iclaimthe foregoing as my 3 5 own Ihereby aftix my signature in presence of two Witnesses.

ARTHUR I?. RICARD.

Witnesses:

WILLIAM WEBSTER, JAMES E. RAYMER.

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