US1208439A - Demountable-rim retainer. - Google Patents

Description

C. L. ADAIR. DEMOUNT ABLE RIM RETAINER.

' APPLICATION FILED JUNE 29,1916- 1,208,439.

Pa tnted Dec. 12,1916.

2 SH EETS-SHEET 1 Patented Dec. 12,1916.

2 SHEETS-SHEET 2 C. L. ADAIR, DEMOUNTABLE RIM RETAINER. APPLICATION FILED JUNE 29. l9l6- UNITED STATES PATENT OFFICE.

CLINTON LAVERNE ADAIR, OF BENTON, PENNSYLVANIA. ASS IGNOR OF ONE-HALF TO KARL ZARR HESS, OF BENTON, PENNSYLVANIA.

DEMOUNTABLE-RIM RETAINER.

Specification of Letters Patent.

Patented Dec. 12, 1916.

Application filed June 29, 1916. Serial No. 106,630.

To all 1151mm it may come a.

Be. it known that I. (LiN'rox Lavnnnn AJMIR, a citizen of the l'nited States, and a resident of Benton. in the county of (ohmibin and State of Pem1sylvania, have invented a new and lmproved Demountable- Rim Retainer, of which the following is a full, clear, and exact. description.

This invention relates to resilient tires and wheels and has particular reference to demountable rims for pnelmnitic or other replaceable tires.

Among the objects of the invention is to provide a quick and easy means for manipulating demount'able rims or the like.

More definitely stated. one object is to provide in connection with the demountable rim. a hook-like retainer with means for quickly applying the same to position and tightening for locking the, rim in place.

With the foregoing and other objects in view the invention consists in the arrangement and combination of parts hereinafter described and claimed. and while the invention is not restricted to the exact details of construction disclosed or claimed herein, still for the purpose of illustrating a practical embodiment thereof reference is had to the accompanying drawings, in which like reference characters designate the sameparts in the several views, and in which Figure l is a side elevation of a wheel showing my improvement applied thereto; Fig. 2 is an enlarged detail view of the locking devices partly in section; Fig. 3 is a view of the coupled ends of the 'hoop partly in section. and showing the position prior to tightening: Fig. 4 is a horizontal sectional detail on the line -'lt of Fig. 1, indicating the position of the clamp when the hoop is tightened; Fig. 5 is a transverse sectional detail on the line 55 of Fig. 2.; Fig. (3 is a transverse sectional detail on the line t')-t$ of Fig. 7; Fig. 7 is a detail in elevation of a mmlification of the invention applied to that type of rim shown in Fig. (3; and Fig. 8 is a transverse sectional detail of the telly andrim portions of a modified form of the invention.

Referring now more particularly to the drawings, I show in the principal figures a standard form of wheel comprising a felly it), a stationary rim I1 and a. demountable rim 12 carrying any approved form of tire indicated at 13, The stationary rim 11 is tion :29 of the shaft fits.

held from displacement in one direction by means of a series of lugs l clamped to the telly by means of transverse bolts 15. Any suitable number of these bolts 15 or their equivalent may be employed, and upon the outer end of each of them, or on the side of the felly opposite the lug 1% is secured a special form of lug 16 having its outer end beveled as indicated at 17. The beveling 0r l'lare of the outer ends of these lugs is outward and the point of each lug projects radially far enough beyond the outer surface of the telly to form a seat for my special binding hoop 18. which bears at its one side against the bevels 17 of the several lugs 16. and at. its-other side against the demountable rim 1?.

.\s shown in the detail views, one end of the hoop is provided with a closed ring or eye 19 of circular form and the other end of the hoop is threaded, as indicated at 20.

At '31, I show a socket member having an internally threaded thimble 2 at. one end adjustably onnected to the tl1'-:eaded end20 of the hoop. At its other end, the socket member is bifurcated having two parallel wings l3 and :24 having ooaxially arranged holes 23 and 24 respectively. These holes are both circular, but the former is larger than the latter.

At 25. is shown a short shaft having at one end a head 26, adjacent which is a. large circular bearing portion 27 fitted for rotation'in the hole 23. Near the, other end the. shaft is provided with a second smooth bearing portion 28 rotatably fitted in the hole 24. Between the, bearing portion. 27 and 28 is a polygonal portion 29 formed as reduced from the. bearing portion 27, whereby this portion of the shaft is projectable through the bearing hole 223. The length of the portion 29 is greater than the. diameter of the metal of the hoop or thickness of the ring 19. At the end of the shaft opposite the head 26 is formed a polygonal portion 30 reduced from the portion '28 for projection through the hole 24. This por tion 30 is adapted for the application of a wrench of any suitable construction for turning the shaft.

31 indicates a cam wheel having a. circular periphery and fitted rotatably within the ring it). This wheel 31 has an eccentric opening 31 into which the polygonal por- The portion 29,

however, of the shaft is longer than the thickness of the wheel for the accommodation of a stop log 32 fitted rigidly upon said projecting end of the portion 29. The wheel and lug 32 consequently are both rotatable with the shaft between the two plates 23 and 24.- of the socket member. The length of the stop lug 32 is such that its free end is adapted to strike against the crotch portion of the socket member 21.

The operation of the device thus far described is substantially as follows: With the folly equipped the rim 12 is slipped into place against the flange of the rim 11 over the lugs 16 and then the hoop, with the coupling thereof in the position shown in Fig. 3, will be slipped into place over the lugs 16 and against the adjacent side of the rim 12, as shown in Fig. 5. The length of the hoop will previously have been adjusted at the connection at 20 and 22 according to the size of the wheel. The tool (not shown) then being applied to the polygonal end 30 of the shaft 25, the shaft, cam wheel, and stop lug will be swung within the ring 19 until the stop lug strikes against the crotch portion of the socket piece. .The longer radius of the cam wheel will by this time have passed to or slightly beyond the dead center and accordingly the device will be self-locking, as shown in Figs. 1, 2, and 4. The amount of eccentricity of the cam wheel will be sufficient to firmly tighten-the hoop in the' position indicated, preventing displacement thereof from the wheel and the hoop will hold the other parts of the wheel in place.

In Figs. 6 and 7, I show a modified form of rim structure, the same comprising a stationary rim 11 secured in any suitable manner to the telly 10. The rim 11 is provided with a side edge formed with a groove 33 over which the demountable rim is adapted to be passed so as to abut against the upstanding flange 3 t on the other side of the wheel. To adapt this form-of fixed rim for the in'iproved retainer, a portion of the projecting or grooved portion of the rim is cut away close to the edge of the felly 10 to accommodate the coupling portions of the hoop. In order to support the ends the with the bolts 15 and lugs 16,-

grooved portion of the rim thus exposed, a pair of lugs 16 are bolted to the folly by means of bolts 15. The hoop lies in the groove 33 entirely around the wheel except directly between the lugs 16, and when so lying in the groove, as shown in Fig. 6, the detachable rim will be positively locked in place. The operation of this form of device is practically the same as that above described in connection with the main figures.

As shown in Fig. 8, the pivot bolt 25 may be journaled permanently in a sleeve l0 fitted in the telly 10 and reversed so that the end 30 to which the wrench or the tool will be applied, will be on the side of the wheel next to the vehicle. By this arrangement the head 26 and adjacent parts of the device will project on the outside of the wheel to the least extent. The bolt 25 may be locked in place by a washer 35 and key 36.

I claim:

1. The combination with a felly, a rim fixed thereto and a demountable rim cooperating with the fixed rim, of retaining means for the den'iountable rim comprising a hoop having a ring at one end, a bifurcated socket piece at the other end, the ring being located in the bifurcated portion of the socket piece, a crank shaft journaled in the socket piece and a cam wheel secured to the crank shaft and fitted rotatably in the ring for tightening the hoop, and means secured to the side of the folly to hold the hoop in place against the demountable rim.

2. The combination with a telly and a rim secured thereto, of a demountable rim retainer cooperating with said folly and rim and comprising a hoop having at one end a circular ring and at the other end a bifurcated socket piece adjustably connected thereto, Said ring being fitted into the forked portion of the socket piece, a shaft journaled in the socket piece and having a polygonal portion between its ends, a cam wheel secured upon the polygonal portion of the shaft and fitted for rotation within the ring a foresaid, means to rotate the shaft and cam wheel and a stop member secured to the shaft to limit its extent of rotation.

CLINTON LAVERNE A'DAIR.

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