| Notes |
- Patents Issued
Willson, Walter V, Brunswick, assignor of one half to J Irving, Troy, NY,
Transom lifter, No. 466482, Jan 12, 1892 Volume 8965 22 Official Gazette.1 58 174
Ref: Report of Commissioner of Patents to Congress 1892.
Patent US348306
WALTER VANDER HEYDEN WILLSON. CLUTCH FOR STREET OAR BRAKES.
No. 348,306. Patented Aug. 31, 1886. Washington, D. C., UNITED STATES PATENT OFFICE.
WALTER VANDER HEYDEN \VILLSON, OF BRUNSWICK, NE\V YORK.
CLUTCH FOR STREET-CAR BRAKES.
SPECIFICATION forming part of Letters Patent No. 348,306, dated August 31, 1886.
Application filed June 12, 1886.
To all whom it may concern.
Be it known that I, WALTER VANDER HEY DENWILLSON, of Brunswick, County of Bensselaer, State of New York, have invented new & useful Improvements in Clutching Mechanism for Street-Car Brakes, of which the following is a specification.
My invention relates to clutching mechanism & more particularly to that class of it which is used in connection with a ratchet & detent to operate the brake-shaft & brake of street cars, although it may be equally well applied to actuate drills or other mechanism requiring the same function of operating parts.
Accompanying this specification, to form a part of it, there are two plates of drawings, containing 10 figures, illustrating my invention, with the same designation of parts by letter-reference used in all of them.
Of these illustrations, Figure 1 shows a side elevation of my improved clutching mechanism applied to operate the chain-shaft & chain of a street-car brake. Fig. 2 shows a top view of the mechanism illustrated at Fig. 1. Fig. 3 shows a section taken on the line w x of Fig. 1. Fig. shows a top view of the mechanism with the upper cap removed & with the clutch-shaft shown in transverse section. Figs. 5, 6, 7, S, 9, & 10 show views of detached parts of the apparatus.
The several parts of the mechanism thus illustrated are designated by letter-reference, & the function of the parts is described as follows: 4. The letter S designates the clutch-shaft, & as having the operating crank-arm H. The letter W designates a wheel that is keyed to said shaft at k, so as to turn with it. The letter 9 designates a wedge-form groove that is made in the perimetrical face of the said disk form wheel W.
- The letter D designates the housing or case that incloses the clutching mechanism, & this case or housing is produced by means of an upper dish-form cap, K, that has a passage-way, 1-, through it for the clutch-shaft S, a camplate, P, that has the centrally eutont? area A, with the latter having on its inner edge the cams O & stops 10 & a dish form bottom or base-plate, K", to the bottom Serial No. 204,910. (No model.)
of which latter is attached the sleeve S, which is keyed to the brake-chain shaft S While I have shown the cap-plate K & cam-plate P as made separately, they may be made in one piece, if desired, & connected to the bottom or base plate by bolts & nuts; or, if desired, the bottom plate & camplate may be made in one piece & connected to the top plate by bolts & nuts to form the case or housing D.
The letters W designate wedges, each of which, on one of its ends, is provided with rectangular faces & at its other end with the wedge-form surfaces f".
The letters b designate screw-bolts, adapted to pass through the base-plate K the intermediate canrplate, l , & cap K, & thus secure these plates together by means of uutsn?.
The letter F designates a part of the car platform, & It a ratchet arranged in revolution on the rim of the base-plate K". The letter (Z designates a spring detcnt? or pawl pivoted to the platform & adapted to engage with the teeth of said ratchet.
The clutch-wheel W, as arranged on the shaft S & keyed thereto, is placed within the area A of the cam-plate 1, between the cap-plate K & base-plate K & the wedges W are also arranged in the said area, so that their rectilinear faces f will abut against the vertical faces of the cams 0, between the stops TV", with each of the wedges s0 placed that their wedging-surfaces f shall be where they will enter the groove 5 of the wheel W when crowded inwardly by the engagement of the said cams. With the parts thus placed when the clutching-wheel WV (by the action of the crank H) is turned in the direction of the arrow shown at Fig. 4, the clutching-wedges are forced into the groove 9 of the. clutch-wheel W by the action of the cams O to securely lock the parts, so that the whole closure D, the sleeve S & shaft S are turned also by the movement of the crank in the indicated direction. When the clutch1 wheel XV is turned in a direction that is opposite to that given by the arrow at Fig. 4, then the said wheel moves the wedges from out the groove 9 & turns within the housing or case, & without actuating the sleeve S to turn the shaft S the said sleeve being keyed to the shaft S", the function of the apparatus being to turn the shaft S. If desired, however, the latter may connect directly with the under face of the housing D & the sleeve S be omitted & the brake-chain M wound directly onto the shaft S, the sleeve S performing merely the function of an intermediate connection between the housing or case & the shaft S. When the clutching-wheel & wedges are engaged so that the whole mechanism is turned to operate the shaft S, then the spring-detent d, engaging with the ratchet R, holds all the tension upon the brake thus attained & by means of its lever end in when the detent is tripped this tension is released. As the chain-brakes are usually operated on streetcars, the crank is turned with a continuous movement to increase the brake-pressure on the wheels & when, as it often occurs, that the crank in its rotation is at arms-length before the required tension upon the brake is had to move it further, is difficult from the position of the driver operating it. With my improvement when the crank is at arms length it may be turned back to a more convenient position for applying power to it, or the crank may be reciprocatingly rotated for a short distance at a time to apply pressure little by little & thus keep the crank-arm in-a position where it is easily handled. Having thus described my invention, what I claim & desire to secure by Letters Patent, 1s.
1. In a clutching-mechanism, the combination, with a shaft adapted to be rotated, of a housing or case that is made with a passage-way for said rotating shaft to turn therein & constructed with cams on its interior face, of a clutching-wheel that is keyed to turn with said shaft & constructed with a wedge-form perimetral groove, said clutching-wheel being arranged within said housing & wedges that are also arranged within said housing or case, adapted to be operated by said cams to engage with the perimetral groove of said clutching wheel, substantially in the manner as & for the purposes set forth.
2. In a clutching mechanism, the combination, with a shaft adapted to be rotated, of a housing or case that is made with a passage-way for said rotating shaft to turn therein & constructed with cams & cam-stops on its interior face, of a clutching-wheel that is keyed to turn with said shaft, & constructed with a wedge-form perimetral groove, said clutching-wheel being arranged within said housing, & wedges that are also arranged within said housing or case, adapted to be operated by said cams to engage with the perimetral groove of said clutching-wheel, substantially in the manner as & for the purposes set forth.
3. In a clutching mechanism for a streetcar brake, the combination, with the housing or case D, made with the passage-way p, cams G, cam-stops w & ratchet R, of the cutching-wheel V, made with perimetral groove g, keyed to the shaft S, & arranged within said housing, the wedges W arranged within said housing relatively. To the said cams & perimetral groove, as described, the sleeve S attached to the under side of said housing & to the shaft S & the detent d, constructed & arranged to be operated substantially as & for the purposes set forth.
Signed at Troy, New York, this 11th day of May, 1886, & in the presence of the 2 witnesses whose names are hereto written.
WALTER VANDER HEYDEN WILLSON.
Witnesses: CHARLES S. BRINTNALL, W. E. HAGAN.
Referenced by Citing Patent US2623440, Filing date Oct 31, 1945, Publication date Dec 30, 1952, Applicant Warren Dunham Foster, Title Unitary work holder.
.1897 Sep 23, Walter V Willson & family have closed the Cliff View cottage at the lake & returned to Troy, NY.
Ref: Burlington Clipper newspaper, Vermont.
. 1930 Oct 31, Vergennes, Walter Vanderheyden Willson, Dies, one of the oldest.
Ref: Burlington Free Press, published Sat Nov 1, 1930.
. Research & transcription by P J Ahlberg. Thank you. - - -
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1858 - 1930 (72 years)