US1144855A - Compressor for demountable rims. - Google Patents

Description

I H. E. LEE; COMPRESSOFLWR DEMOUNTABLE RIMS.

APPLICATION FILED DEC-1.19M.

Ll$fifi5w PatentedJune 1915.

2 SHEETS i.

Herr ELee H. E. LEE;

COMPRESSOR FOR DEMOUNTABLE RIMS.

' APPLICATION FILED DEC. I, 1914.

l m fifififl PatentedJune 29, 1915,

SHEET 2.

2 SHEETS- INVENTOR '3 Marry E. Lee

E. LEE, Q3? GRAITTJVEH'W,

GQEFE'PBESSQR FOE DEMGUNTABLE Application filed Tileccmber 1, 19M.

and State of @hio, have invented new and I Improved Compressor for Demo-unable Rims, of which. followiiiig is a fall, clear, and exact description.

My invention relates to means for COTfl pressing demonntahle rims in the removal of the same from a tire.

The prime object of my invention is to provide for the use of a lei er whereby to conveniently and expeditiously the meeting ends of the denioiintable rim and draw the separated ends into overlapped position, thereby compressing or constricting the rim. In connection. with the clamp ments to be engaged by the lever I. provide latch means to edect latched engagement between the elements when the rim is compressed, wherehy to hold the latter against the tendency to expand to its normal form.

The nature of the invention and the distinctive features thereof will be clear from the specific description following:

Reference is had to the accompanying drawings forming part of this specification,

in which similareharacters of reference 1ndicate corresponding parts in all the views, and in. which: I

Figure 1 is a side elevation of my improvedodevice showing the'same applied to a demountable rim, with the latter in compressed or constricted form; Fig. 2 is a longitiidinal vertical section of my improved device on an enlarged scale, portions of the demountable rim being shown in the normal expanded position of the rim, the section being taken on the line 2-2, Fig. Fig. 3 is a view similar to Fig. 2,, with the rim compressed; Fig. 4 is a cross section on the line d-4 Fig. 2; and Fig. 5 is a plan view of my improved device as applied.

My invention is shown as applied to a demountahle rim A in the form of a split ring, the ring being conventionally shown. In. carrying out the invention 1 provide clamp jaws 10, arranged to grip one end of the rim A, the preferred form of jaws locing illustrated, and comp 'ising Y inturned clamping ends 11 to engage the outside of the rim, and desirably provided. with gripping teeth 11 he respective jaws 10, l0 are mounted on a shaft 12,-on one end of Specification of Letters Patent.

Patented inns 2t which is mounted a hand wheel 18 for turning the shaft. One end of the shaft 12 is threaded as at 19, and recei es a nut is outside oi the adjacent jaw I" "r1 Between the opposite jaw 10 and the hand wheel 13 a spacing sleeve may be p' *idcd on the 12, thereby providing clearance for the movement the turning the wheel 13.

To give guided movement to the jaws 10,

1.0 a rod 16 is provided extending. throogh the opposite and receiving nuts l? on;- side of the clamp jaw. 'ii. bail i8 is arranged in connection with the clamp composed of jaws l0, l0, and is mounted to swing. in the illustrated construction the bail 18 has its ends 19 bent around the shaft 12 so as to swing on the latter. The hail is adapted to receive an actuating lever, as hereinafter explained.

A separate clamp composed of opposite jaws 20, 20 is provided for gripping" the opposed end of the rim A, and said jaws are provided with gripping members similar to the members 11 and provided with teeth 21. integral with one jaw 20 is a cross bar 22 having means at its ends to engage the opposite jaw. The said engaging means in the present example comprises pins 28, secured to the outer ends of which is a plate 24; spaced from the end of the cross bar 22. T he pins 23 extend through the adjacent jaw 20, so that the latter has guided sliding movement on said pins. In order to actuate the jaws 20, 20 the same are mounted on a shaft 25, one end 01'? which mounts a hand "wheel 26. On the opposite threaded end 25 of the shaft 25 a shaft 27 is provided. Oct side of the adjacent jaw 20 between the j aw 20 and. the hand wheel 26, a spacing sleeve 28 is provided.

The j aw 10" of one clamp has threaded engagement with the threads 12 of the shaft 12, and the j aw 20- has threaded engagement with the adjacent threaded end of the shaft 25. Thus the turning of the shafts l2 and will close or open the jaws of the respective clamps. v

A swinging bail 29 similar to the bail 18 is provided in connection with the clamps 20, 20. said bail 29 having its ends 30 bent around the shaft to swing on the latter. The hail. 23 is so positioned that it will eX- tend toward the bail 18 of the opposite clamp. ".Tae lever is adapted to engage from the wheel the lever 32 having been then engaged with the respective bails,.as illustrated in Fig. 2, the first movement of the lever will cause the meeting ends of the rim to slip by each other and laterally displace the said meeting ends, whereby to permit the ends of the 'rim to be overlapped in constricting or compressing the rim. The continued movement of the lever will draw the respective bails and their clamps toward each other to the position indicated in Fig. 1.

In order to effect latched engagement be tween the clamps and hold the same against separation when the clamps have been drawn toward each other by the movement of the lever, I provide a latch 35 which is pivoted between its ends on a pin 36 provided on a hanger bracket 37 which is secured to the cross bar 22 by a rivet 38, or equivalent means. Thelatch 35 is thus disposed be.- tween the jaws 20, 20 adjacent to the bail 29, and has a hooked end 39 disposed in the direction of the opposite bail 18. The arrangement is such that as the lever 32 carries the bail 18 towar d the opposite clamp, the cross bar 18 of said bail 18 will be engaged by the hook 39of the latch 35. Thus the clamps are held against separation and the rim maintained in the constricted form. The latch 35 is under the influence of a spring 40, here shown as coiled about the projecting end of the pin 36. One end 41 of the spring bears against the bracket 37, while the opposite end 42 extends through the latch 35 atthe opposite side of the pin 36 from the hook 39. Thus the tendency of the spring 40 is to maintain the latch 39 in position to be engaged by the cross bar 18 of the bail 18.

Conventionally indicated in the drawing is the air tube B of the tire valve projecting at the inside of the rim A. In connection with one of the clamps I provide an element to be engaged by the hooked end 33 of the lever 32, whereby pressure will be exerted againstthe end of the air tube B as the lever brings the clamps toward each other. The pressure device for the valve B may consist of an element 43 formed of wire return bent at its center, the ends 44 being bent around the shaft 25 of the clamp 20,

20 to swing on said shaft. At the bend of the wire 43 the same is formed into a hook 45, the bill 46 of which is adapted to hook over the tube B while the shank of the hook 45 bears on the end of the said tube. The element 43 is located to extend beneath and beyond the cross bar 29 of the bail 29, and

clamps toward each other, the hook 33 of the lever will bear down on the element 43 and thus exert pressure on the end of the valve It will thus be seen that the improved compressor, in separating a tire from a demountahle rim, simultaneously with the compressing of the rim, releases the air from the tire and presses the valve tube outwardly, whereby to facilitate disengagement of the valve from the compressed rim.

In the preferred form the lever 32 is forked as best seen in Fig. 5, in order to provide two hooks 33.

Referring more particularly to Figs. 2 and 3, it will be seen that there is a depression 47in the guide rods 16 whereby to assist in engaging the lever 32 with the respective bails 18 and 29.

Having thus described my invention, what I claim as new and desire to .ecure by Let- 4 ters Patent, is:

1. In a device of the character described, separate clamps to grip opposed members to be moved toward each other, actuating means to draw said clamps toward each other, the clamps having elements to be engaged by said actuating means, and latch means to effect latched engagement between the clamps and prevent separation thereof when the actuating means have drawn the clamps toward each other, said latch means comprising mating elements on the respective clamps engageable by a movement of the actuating means.

2. In a device of the character described, separate clamps adapted to engage two opposed members to draw the latter toward each other, a swing bail on each clamp adapted to receive an actuating device to draw the clamps toward each other, and a latch on one clamp movable into latched engagement with the bail of the other clamp.

3. In a device of the character. described, separate clamps adapted to engage two 0pposed members to draw the latter toward each other, a swing bail on one clamp disposed toward. the second clamp, a swing bail on said second clamp and adapted to overlap the first bail when the clamps are moved toward each other, a latch on the second clamp adjacent the bail thereof, and having a hook to engage the opposite bail. and a lever adapted to engage said bails to draw the clamps toward each other and engage the one bail with the said latch.

4. In a device of the character described, separate clamps adapted to grip the adjacent ends of the split 'demountable rim, an element on one clamp to bear on the inner end of a valve tube at the inside of the rim, a lever to draw the clamps toward each other,

I as the lever 32 is swung to draw the respective I and members on the respective clamps to engage the lever, one of said members being disposed adjacent to the element that bears on he valve tube to dispose the lever adjacent to said element.

5. In a device of the character discribed,

separate clamps adapted to grip the adjacent ends ofthe split demountable rim, means whereby to draw the clamps toward each other, and means to exert displacing pressure on the valve at the inside of the rim as the clamps approach each other.

(3. In a device of the character described, separate clamps adapted to grip the adjacent ends of the split demountable rim, each clamp com 'irising jaws, a shaft on which the jaws are mounted, means. to turn the shafts to giv ative movement to the jaws, a guide rod extending between the jaws of one clamp to guide the jaws, one jaw of the other clamp having an integral top bar slidably engaging the opposite jaw, and means the respective jaws disposed toward each 30 other, a lever to draw the clamps toward each other, a latch on one clamp adjacent to the bail thereof, said latch being pivoted between its ends and having a hook to engage the bail of theopposite clamp, and a spring acting on said latch to maintain it in position to be engaged by the said bail.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

HARRY E. LEE.

\Vitnesses J 01m A". HOLLIDAY, Geo. D. HARVEY.

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