US491412A - Windlass for lowering or raising street electric lamps - Google Patents

Description

No Medel.)

G. R. EDDY. WINDLASS FOR LGWBRING OB, mism@ STREET ELECTRIC LAMPS.

Patented Feb. 7,1893.

/NVE/VTOH ATTOHNE YS A W/T/VESSES w Unirse Sterns Farmer einen.

CHARLES R. EDDY, OF SPRINGFIELD, MISSOURI.

WINDLASSS FOR LOWERiNG OR RAiSlNC-Ii STREET ELECTRlG LAMPS.

EP'ECIFLOATION forming part of Letters Patent No. 491,412, dated February '7, 1893.

Application filed May 28,1892. Serial No. 434,815. (No model.)

To ttl-Z whom may concern:

Be it known that I, CHARLES R. EDDY, residing at Springfield, in the county of Greene and State of Missouri, have invented certain new and useful Improvements `in Electric- Iiamp-Filevating Windlasses, ot which the to1- lowing is a specification.

My invention has for its object to provide a simple, inexpensive and ettective windlass, adapted for use, for raising or lowering electric lamps for the purposes of examination, cleaning and supplying new carbons, and such invention consists in the peculiar' combination and arrangement of parts hereinafter fully described in the specification and pointed out in the claims, reference being had to the accompanying drawings in which Figure l is a central longitudinal section of my impro ved windlass the crank being shown detached. Fig. 2 is an end view of the same. Fig. d is across section on the line 3-3 Fig. l. Fig. i is a similar view on the line lf-s Fig. l and Fig. 5 is a plan view of the hollow shaft and locking lever. Referring to the accompanying drawings A indicates a suitable supporting frame, in the side arms cv c of which is journaled the shaft C upon which is iixedly held the drum or barrel l5. .By reference to Fig. l it will be seen that the end c of such shaft is reduced turns within the opening o2 in the arm a', which is formed with a series of radial sockets co3 and such end, as well as the bottom et body of the shaft is longitudinally slotted as at C such slot extending nearly through such body portion as shown. lNithin the slot C is pivoted a rocking lever or detent D centrally pivoted at d, one end ot' which has a depending linger d which projects down through the slot C in the end c of the shat't and enters one of the radial sockets a3, it being normally held in engagement therewith by means of the fiat spring E, which is disposed in the slot C between its upper edge and the upper tace of the end DX of such lever. The opposite end of the shaft C is also reduced as at cx, and is extended beyond the arm o such end c being non-circular to receive the non-circular socket of the operating crank presently referred to, such end being also slotted on its upper edge as at C which is a continuation of the slot C', in which entends the end D2 of the lever, the

upper face of the said end being norinallyflush with the upper edge of such extension cX as shown.

The crank F, has its socket f formed non circular as before stated which socket communicates with an upwardly extending slot f2 in which is pivoted a cam lever or eccentric G the handle g of which extends down on the Viront face of the said crank arm.

The operation of the several parts is as tollows: The crank F with its cam or eccentric in its normal position (see Fig. l) is placed upon the projecting end ot the shaft C; the handle g of the lever G is then elevated, which causes the cam member to depress the end D2 of the lock lever and correspondingly raises its opposite end, (see dotted lines Fig. l) into the slot C and out of contact with the respective lock notches in the arm a which operation unlocks the windlass and leaves it free to be revolved in either direction by the crank F. After having lowered the lamp and raised it again to its desired position the cam lever G is again adjusted to its normal position which allows the spring actuated lever D to project into engagement with one ot the radial notches o3, after which the crank is removed and is ready for use to operate on the next windlass. By this construction it will be seen that but a single crank will be necessary for operating all of the windlasses, and the several windlasses automatically locking themselves so soon as the crank is removed.

Having thus described my invention, what I claim and desire to secure by Letters Patent ISI l. In a windlass, in combination, the supporting arms, the shaft journaled therein and having the drum iixedly held thereon, one end of such shaft projected beyond its bearing, locking devices carried by the shaft, to normally lock the shaft to its bearing and a detachable crank member, having unlocking means, adapted to be moved into contact with the shaft locking devices, to unlock them when the crank is applied to the shaft, substantially in the manner and for the purposes described.

2. The combination with the supporting arms having bearing apertures, one of such apertures having lock notches, of a drum car rying shaft journaled in such apertures said shaft having one end proj eoted to form a crank IOO receiving end, such shaft slotted longitudinally, a spring actuated lever pivoted in such slotted shaft, and normally held with one end in locked engagement With one of the lock notches7 its other en d flush with the outer face of Jthe crank end and a crank member having an eccentric or cam lever adapted to be moved into engagement with the upper end of such lever to tilt it, When the crank is applied substantially as and forthe purpose described.

3. The combination of the supporting arms da', the arm a having radial lock notches co3, the slotted shaft C journaled in such arms a a', and carrying the drum B, and having an

Images