US51351A - Improvement in locomotive head-lights - Google Patents

Description

RAY o CLEVELAND.

Locomotive Headlight.

Patented' Deo. 5, 1865.

N. percus. Phmvmnogmphar. wmngwn. D. c.

UNrre STATES ATENT OFFICE.

THOMAS S. RAY AND SAMUEL E. CLEVELAND, OF BUFFALO, NEW YORK.

IMPROVEMENT IN LOCOIVIOTIVE HEAD-LIGHTS.

Specification forming part of Letters Patent No. 5 1,351, dated December 5, 1865.

To all whom it may concera Be it known that we, THOMAS S. RAY and SAMUEL E. CLEVELAND, of the city ot' Buffalo, county of Erie, and State of New York, have invented certain new and useful Improvements in Locomotive Head-Light Lamps; and we do hereby declare that the following is afull, clear, and exact description thereof', reference being had to the accompanying drawings, making a part of this specitication, in which- Figure I is an elevation. Fig. Il is a vertical section. Fig. III is a cross-section on line a b. Fig. IV is a cross-section on line c d.

The nature of this invention consists, tirst, in a locomotive head-light lamp having a deector and shield, forming a combustion-chamber around and above the top ot' the wick-tube, so constructing said shield and connecting it with the wick-tube as to leave an annular space at the bottom of the shield and between it and the wick-tube, through which the air `for combustion may enter directly into the combustion-chamber, whereby the diameter of the lamp is reduced and the wick-tube prevented from heating; secondly, applying a cushion of felt or other suitable material to the chimney-seat, to prevent the passage of air underneath the chimney when the jar ot' the locomotive causes the same to lift from its seat., and, further, to lessen the liability of the chimney to break from the same cause; third, in packing the spindle of the pinion by which the wick-rack is operated by means ot a ground joint with seating-spring.

Letters of like name and kind refer to like parts in each ofthe gures.

Arepresents the wick-tube, consisting of two concentric cylinders, one inside of the other and of enough less diameter to leave an annular space between them for the reception of the cylindrical wick. The bottom ot' this annular space is closed tight, so as to retain the oil which flows into the wick-tube from the oil can or receiver through the oil-tube A2.

B represents the dellector, and O the shield, which, combined together, form the combustion-chamber' D around and above the top of the wick-tube. The detlector B at its base is considerably larger than the wick-tube, but curves inward at the top to a diameter slightly greater than that of the inside ofthe wick-tube.

.position concentric w-ith the wick tube.

The base ol' thcdetlector has an outward flange, d', which forms the seat for the chimney.

The shield C, commencing from the basetlange ot' the del'lector, extends downward around the wick-tube and contracts toa dialneter enough greater than that ofthe outside ot' the wick-tube to leave an annular space, c', between it and the wick-tube ot' sufficient area to admit the required quantity ot' air to the combastion-chamber.

rlhe shield is secured at its bottom to a concentric ring or thimble, c2, ot' a diameter equal to that ot' the upper end of the wick tube, at t'our' points, more or less, in its circumference by screws c and interposed washers c4. This ring slips over the end ct' the wicktnhe down to a shoulder, a, formed thereon, and the shield and deilector is thereby held in its proper rlhe shield C extends above the chimney-seat d1 sufiicientl y to l'orm a flange, d2, to hold the base of the chimney against lateral movement on its seat.

By this construction ot' the deflector and shield the diameter ot' the lamp where it passes through the retlector is considerably lessened, so that fewer of the rays thrown oft' by the deilectorare intercepted by the lamp, and causing thelamp to casta less shadow. It further y prevents the wick-tube from heating by permittin g the l'ree circulation of air around it.

A ring,j', ot' felt, woolen, or other suitable and su fliciently-elastic material, islaid upon the seat d and forms an elastic cushion for the chimney to rest upon, so that the jar ot' the locomotive will not cause the chimney to lift and admit air beneath it onto the ilame and cause an unsteady light; and it also prevents the chimney from breaking by the continual jar and vibration which it would have if resting directly on the metallic seats.

Gr represents a cylindrical perforated shell attached to the bottom of the wick-tube, through which the air supplying the central draft through the wick-tube is strained and prevented from entering in sudden gusts and causing unsteadiness and tiickering in the light.

H represents a sleeve or ring to which the wick is attached, and which slides upand down on the inner cylinder ot' the wick-tube to raise or lower the wick. This ring is attached to one end of a rack, H', which extends downward through the annular space and parallel to the axis of the wick-tube and into a small eXtension-tube, H2, projecting from the bottom of t e wick ube.

I represents a pinion gearing with the rack H', its spindle I' being at right anglesto the axis of the Wick-tube and projecting through the outside thereof, and carrying a thumb-wheel, l2, by which the pinion is rotated to move the rack and raise or lower the wick.

The spindle-bearing or box-piece l3 is soldered or otherwise fastened to the outside of the wick-tube, and is of suicient length to at'- ford iirm support to the spindle.

A conical shoulder, J, is formed on the spindie contiguous to the pinion, land a corresponding seat at the inner end of the bearing-piece 13, the conical shoulder being drawn into its seat and tightly held by the action ol" ahspiral spring, J', placed around the bearing-piece 13 and pressing between a shoulder thereon and the hub ofthe thumb-wheel I2.

The cone J is nicely iitted to its seat by grinding', and, being held trnily therein by the action ofthe spring, the leakage of oil from the wicktube around the spindle is wholly prevented.

Heretofore the spindle has been packed by a stuing-box and gland which has proved a very ineflicient device, often leaking and requiring constant attention and repacking. The improvement herein described avoids that difficulty.

L is a button of ordinary construction for spreading the llame.

We herein disclaim the perforated shell G, placed at the bottom of the Wick-tube.

What we claim as our invention, and desire to secure by Letters Patent, is-

1. The combination of the deflector B and shield G with a cylindrical wick-tube and button of a locomotive head-light lamp, the deilector and shield being so constructed and connected to the top ofthe wick-tube as to form an annular space between the wick-tube and shield i'or the entrance of air, and so as to form a combustion-chamber around and above the top ot'the wick-tube, substan tiall y as described 2. Placing a cushion, f, on the flange or shoulder d' and between the detlector and shield for the chimney to stand upon, substantially as set forth.

3. The combination ot' the spindle bearing or box-piece 13, conical shoulder J, formed on the spindle contiguous to the pinion, and spiral seating-spring J', the spindle-bearing having a conical seat formed therein corresponding to the conical shoulder J, and connected to the outside ot the wick-tube, substantially as described.

THOS. S. RAY. SAMUEL E. CLEVELAND.

XVitnesses:

W. El. FoRBUsH, B. H. MUEHLER.

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