US299733A - Eobeet buens - Google Patents

Description

(No Model.)Y

R. BURNS.

GYGLOMETBR. No. 299,733; Patented June 3, 1884.

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UNrrnn STATES PATENT OFFICE.

ROBERT BURNS, OF CHICAGO, ILLINOIS, ASSIGNOR OFv ONE-HALF TO JOHN S. W'ILLIAMS, OF SAME PLACE.

CYCLOIVI ETER.

SPECIFICATION forming part of Letters Patent No. 299,733, dated June 3, 1884.

Application filed October 23,1883. (No model.)

To @ZZ whom it may concern-.- axially-arranged operating eccentric c2, which VBe it known that I, ROBERT BURNs, a citihas bearing upon a pin or stud, c?, upon the zen of the United States, and a resident of casingO, as shown in Fig. l. The face ofthe Chicago, in the county of Cook and State of' inner ratchet-wheel, c', is spaced off to form 55 5 Illinois, have invented a new'and useful Ima (hah/U, and its'hub is arranged to ride or provement in Oyclometers; aud I do hereby turn on the hollow hub of the outer wheel, c, declare the following to be av full, clear, and to enable such outer wheel-hub to receive the exact description of the same, reference being hand or pointer 0*, which moves infront of the 4.- had to the accompanying drawings, forming dial OQ to indicate the distance traveled. The` 6o 1o a part of this specification. number of teeth in one ratchet-disk will be one My invention relates to improvements in more than in the other, so that in the gradual that class of registering mechanism known as movement oi' such disks the one having the odometers77 or cyclometers,77 andwhich is Aleast number of teeth will gain the distance of specially adapted for use in the axial cavity one tooth, so that itwill require a numbeof, 6 5 15 of vehicle-wheels to indicate and register the revolutions of such disks equal to the number of distance traveled; and my improvement has ratchet-teeth therein to return the hand or for its objects, iirst, to provide a simple and pointer at to its original position at starting. compact device'capable of easy adaptation to A step-by-step motion is imparted to the the axial cavity in the outer end of the wheelratchet-disk at each revolution of the vehicle- 7o 2o hub; second, to afford means for locking the wheel by means of a dog or pawl, c, the face device securely in place in the hub-cavity, of which is of the width of both ratchet-disks, and yet permit of the ready removal of the so as to engage and operate both. This dog same for inspection by an authorized person, or pawl is pivoted to the outer end of a lever, and, third, to -supply an improved construce', i'ulcrumed at e2 to the casingC. The inner 75 25 tion whereby one of the registry-wheels will end of the lever is forked, so as to embrace act as a dial, while the other will carry the the operating-eccentric c2, and receive motion hand or pointer. I attain such objects by the therefrom asitis carried around with the revoarrangement of mechanism illustrated in the lution of the wheel. The operating-eccentric accompanying drawings, in which. c2 is held stationary by its square extension- 8o 3o Figure l is an axial section illustrating my pin c5, engaging in a square hole in the axle improvement adapted to the axial cavity of a or axle-nut, as shown in Fig. 1 of the drawings. vehicle-wheel hub; Fig. 2, a section of same F is a protecting cover or face. for the dial at line w as; Fig. 3, a similar view at lline ao C and the operating parts, which is preferably x', and Fig. 4 is an enlarged detail axial secof glass; yet it may in some case be of metal, 8 5

3 5 tion. and made removable for the purpose of read- Similar letters of reference indicate like ing the indicating-dial. parts in the several views. cisaspring-pawhwhich engages the ratchet- In the drawings, A represents a portion of disk to prevent their retrograde movement. the vehicle-wheel hub, B the axle, and B the By my improved arrangement of parts the 9o 4o axle-nut. Within the axial cavity for the dial or indicating-face can be arranged to face axle-nut is arranged my improved cyclometer, inwardly with the back of the casing, which which consists of a circular inclosing-casing, can be made of ample strength to face out- O, the outer diameter of which is equal to the wardly. By this means all liability to acciinner diameter of such cavity, and is locked dental breakage or marring of the parts is pre- 95 4 5 within the same by means of one or more ravented with great certainty, and access of dust dial spring-pins, cl, 4that engage i-n one or more or other-foreign matt-er entirely prevented. radial holes through the rim D of the wheel- The operation of my improvement is as folhub. lows: The eccentric cl being held stationary by The registering-gearing consists of two disks, engagement with the axle or axle-nut, as above 1o 15o c c', arranged in line with the axis of the vedescribed, on each revolution the pawl-lever hicle-wheel, upon a cylindrical portion of the e will be rocked, so as to move the ratchetessentially, of two ratehet`disks having difterent number of ratchet-teeth, a lever and pawl common to both ratchet-wheels, and a iixed operating-cam axially arranged and connected to the axle or axle-nut, all essentially as herein shown and described.

2. In a cyclometer, as hereinbefore described, the combination of the ratehet-wheel c, formed with a dial-face, C', the ratchet-wl1eel c, provided with a hand or pointer, and eam-lever and pawl-op erating` mech anisin all essentially as herein described and shown.

3. In a eyelometer, a pair of registering ratchet-disks whose centers are in the same line as the center of the axle of the vehicle wheel, and so arranged that the dial and pointer will face inward, for the purpose set forth.

In testimony whereof witness my hand this 18th day of October, 1883.

ROBERT BURNS.

II. I). SMALLEY, A. CAMPBELL.

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