US577155A - braggeb - Google Patents

Description

No Model.) 2 Sheets-Sheet 1.

'J. 77.. BRAGGER.

BICYCLE LAMP- 175. 577,155. 5 Patented 755,15, 1897.

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2 Sheets-Sheet 2.

(No Model.) J. W. BRAGGER BICYCLE LAMP.

Patented Feb. 16, 1897.

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' the following is a specification.

of New York, have invented a new and useof two sheets, Figure 1 is a side elevation of side lights in line 2 2, Fig. 1.

- lights and its spring attachment.

. UNITED STATES PATENT OFFICE.

JOHN T. BRAGGER, OF WATERTOWN, NEW YORK, ASSIGNOR TO THE HITCI-IUOOK LAMP COMPANY, OF SAME PLACE.

BICYCLE-LAM P.

SPECIFICATION forming part of Letters Patent No. 577,155, dated February 16, 1897. Ap lication med m 30,1896. Serial No. 601,009. (No model.)

To all whom it may concern:

Be it known that 1, JOHN W. BRAGGER, a citizen of the United States, residing at Vatertown, in the county of Jefferson and State ful Improvement in Bicycle-Lamps, of which This invention relates to that class of lamps which are principally used on bicycles, and has for its objects to improve the construction of the air inlets and exits in such manner as to protect the flame more effectively against extinguishment by the reversal of the air-currents in the lamp; also to improve the construction of the burner-gallery and its connections with the lamp-body and oil-fount in such manner as to produce a simple, durable, and convenient construction of these parts; also to connect the side-light frames with the lamp-body by spring devices whereby these frames are held either openor shut; also to provide a simple and efficient screw-fastening for the front lens or glass, and finally to provide the wick-tube with means for returning to the same the oil which has escaped from the top of the wick-tube.

In the accompanying drawings, consisting a lamp provided with my improvements. Fig. 2 is a horizontal section through one of the Fig. 3 is a detached perspective view of one of the side Fig. 4 is a horizontal section, similar to Fig. 2, showing the side light partly opened. Fig. 5 is a vertical longitudinal sect-ion of the lamp. Fig. 6 is a horizontal section in line 6 6, Fig. 5. Fig. 7 is a vertical section of the burner-gallery and connecting parts in line 7 7, Fig. 6. Fig. 8 is a vertical section of the burner-gallery detached.

Like letters of reference refer to like parts in the several figures.

A represents the oil-pot, and CL the wicktube, secured with its lower end in the top plate of the oil-pot, which top plate is preferably constructed with a depressed central portion a, in which the housing B of the wickraiser b is secured.

0 represents the burner-gallery, which is composed of a horizontal plate or diaphragm c and a depending marginal cylindrical portion 0, both suitably perforated and formed in one piece of sheet metal. The gallery rests with the lower edge of its marginal portion 0 upon the top of the oil-pot.

cl represents an annular bead or hollow rim formed on the horizontal plate 0 of the gallery near the marginal edge thereof and formin g an upwardly-projecting shoulder, against the outer side of which the lower edge of the lamp-body rests.

E represents an annular plate which is arranged at a short distance above the burnergallery and which is provided at its inner edge with an upwardly-projecting collar e. The burnercone F rests upon this plate against the outer side of the collar (2, as clearly shown in Fig. 5. The plate E rests upon hollow stay bosses d, which are preferably stamped upon the plate a of the burner-gallery, and is secured to the latter and to the oil-pot by vertical bolts f, which pass, preferably, through these stay-bosses and secure the gallery and supporting-plate to the oil-pot.

G represents the outer cylindrical shell of the lamp-body, which rests with its lower por-,

tion upon the plate 0 of the burner-gallery and against the outer side of the annular rim d thereof. This shell carries at its upper end an upwardly-converging curved breast-piece g, which carries in turn a perforated cylindrical top collar 9, having at its upper end an imperforate annular plate 9 The latter supports thedome or cap 9 which overhangs with its lower perforated flange the imperforate top plate g H represents the inner cylindrical shell of the lamp-body, which is arranged in a wellknown manner at such a distance inwardly from the outer shell as to form an annular air-passage H of suitable width between both shells. The inner shell rests with its lower edge upon the annular plate E, near the outer edge of the latter.

inner shell carries a cylindrical collar h of slightly-smaller diameter than the inner shell and forming a continuation of the latter, and this collar carries the upwardly tapering chimney h, which opens underneath the cap or dome g '5 represents an annular row of perforations The upper edge of-thev formed in the outer shell immediately above the burn er-gallery, and 2" represents a similar row of perforations formed in the upper portion of the same shell opposite the upper portion of the inner shell.

j represents one or more annular rows of perforations formed in the lower portion of the inner shell opposite the lower row of perforations in the outer shell, and j represents an annular row of perforations formed in the lower portion of the cylindrical collar h of the inner shell. I

In the ordinary operation of the lamp the air for the supply of the flame enters through the perforated burner-gallery and passes underneath the burner-cone and into the inner shell outside of the burner-cone. Under certain conditions of motion air for the support of the flame is also derived from the openings in the upper perforated collar g, which air passes downwardly through the annular space between the two shells; The openings at the upper and lower ends of the inner and outer shells permit the air to partially escape or cushion in raising and lowering the lamp suddenly, and this prevents the air from extinguishing the flame under sudden vertical movements.

K represents a flat stud, and L a springcatch, which project outwardly from diametrically opposite sides of the burner-gallery above the horizontal plate thereof and engage in openings formed in diametrically opposite sides of the lower portion of the outer shell. The spring-catch is provided with a thumb-piece Z, which is arranged below the horizontal plate of the gallery and projects through the marginal portion 0 thereof. This arrangement of the attaching devices is very simple and permits the oil-pot'to be connected with the lamp-body in either of two positions, so that the wick-raiser shaft can be made to project on one side or the other of the lamp, as may be most convenient.

M represents two square side tubes which are arranged on opposite sides of the lamp body and extend from the inner to the outer shell and connect the side portions of these shells, while permitting light to pass laterally from the opening in the inner to the opening in the outer shell for the illumination of the side lights in a well-known manner.

N represents the frame or door of each side light fitted against the outer side of the side opening in the outer shell and containing usually a colored glass or other signal. Each frame or door is pivoted by a sleeve n to the upright bar 1) of a bent bifurcated wire spring P, having two arms 19, which are arranged on the inner side of the outer shell. The ends of these spring-arms are secured to the shell by any suitable means, preferably by a clamping-plate 19 which is riveted to the shelland grasps the ends of the spring-arms.

The frame ofv the side light is provided with a projection extending a short distance beyond its pivotal connection with the spring two short arms a being shown. In turning the frame on its pivot in opening the side light these projecting arms at brace themselves against the outer side of the lamp-body and form rocking pivots on which the frame turns, as indicated in Fig. 4. As the frame turns on the ends of these arms during the opening movement, the pivotal connection of the frame with the spring moves outwardly or away from the lamp-bod y, whereby the spring is forced outwardly and strained. This 0011- tinues until the arms have passed the deadcenter, when the pivotal connection is free to approach the side of the lamp-body under the action of the spring, which now quickly completes the opening movement and then holds the frame open. During the closing movement of the frame the spring is first strained and then quickly completes the closing movement in the same manner. This device for holding the side light open or shut is particularly desirable because it does not require a long-continued handling of the sidelight frame, which is often hot and not easily handled.

Q, represents the forwardlyflaring tube which extends from the inner shell through the outer shell and forwardly beyond the latter and which receives the front lens or glass R. The latter rests against an annular shoulder q, formed in the front portion of this tube at the base of aninternal screw-thread g.

Q, is a screw-collar which engages in said screw thread and which clamps the lens against the supporting-shoulder by means of a yielding flange (1 formed at the inner end of the screw-collar. The latter is formed of sheet metal, and the flange is formed in one piece with the collar and extends inwardly from the inner end of the collar. As the flange is made of sheet metal, it is yielding and so bears snuglya'gainst the lens and holds the latter securely against rattling.

S represents a cup secured to the wick-tube above the plate of the burner-gallery, and 3 is an opening formed in the wick-tube immediately above the bottom of this cup, so that any oil which may have escaped from the top of the wick-tube is caught in this cup and returns through this opening into the wicktube.

T represents the usual reflector arranged in the inner shell of the lamp body.

I claim as my invention- 1. The combination with the oil-pot, of a burnengallery resting thereon and consisting of a perforated diaphragm provided with a marginal flange having air-inlets, an outer shell resting on said diaphragm and provided with perforations near its lower end and with air-inlets near its upper end, an inner shell having its lower end supported above said diaphragm and provided with perforations near its lower end and in its upper portion,

and a burner arranged within said inner shell and having its air-spacein communication with the space between the inner and outer shells, substantially as set forth.

2. The combination with the oil-pot, of a burner-gallery composed of a horizontal perforated plate and a perforated depending marginal flange formed integrally therewith and having a raised annular rim and raised bosses formed integrally with said horizontal plate, an annular supporting-plate resting on said bosses, bolts connecting said supportingplate and perforated plate with the oil-pot, and an outer shell resting on said horizontal plate outside of said rim, substantially as set forth.

3. The combination with the lamp-body, of a spring .composed of a pivot-bar and bent arms connected with the ends of said bar and secured at their ends to the lamp-b dy, and a signal frame or door pivoted to said bar between the arms of said spring and provided with a projection extending beyond said pivotbar and adapted to bear against the lampbody, substantially as set forth.

fitness my hand this 27th day of July, 1896.

JOHN XV. BRAGGER.

Witnesses:

JNo. B. TAYLOR, CORA L. SHERMAN.

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