US1254114A - Portable electric light. - Google Patents

Description

B. BENEMCT.

PORTABLE ELECTRIC- LI GHT. APPLICATION FILED JUNE 14. 1917.

1,254,114. Patented Jan. 22,1918.

2 SHEETS-SHEET 1.

8 nvehtoz B. BENEDICT PORTABLE ELECTRIC LIGHT. APPLICATION FILED JUNE 14. 1917.

Patented J an. 22, 1918.

2 SHEETS-SHEET 2.

INVENTOR A TTORNE) UNITED STATES PATENT OFFICE.

BERNARD BENEDICT, OF NEW YOBIQN. Y., ASSIGNOR TO NATIONAL CARBON COMPANY,

OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

PORTABLE ELECTRIC LIGHT.

Specification of Letters Patent.

Patented J an. 22, 1918;

Application filed June14, 1917. Seria1'No.174,655.

York city, in the county of Bronx and State of New York. have invented certain new and useful Improvements in Portable Electric Lights of which the following is a specification, reference being had therein to the accompanying drawings, forming part thereof.

My invention relates to portable electric lights and relates more particularly to the tubular type of these lights in which a metallic reflector and a metallic lamp socket in electrical connection therewith are insulated from the adjacent metallic parts thecasing. Objects of my invention are simplicity of construction, inexpensiveness of manufacture, reliability of operation, convenience in use and other objects and advantages wh ch will hereinafter appear.

My invention includes a metallic contact plate which is in contact witlrand projects from the lamp socket, a metallic reflector n1 electrical connection with the contact plate, and means for supporting the contact plate and the reflector in insulated relation to a metallic casing part, such supportingmeans more particularly including a metallic supporting member supported by the end of the metallic casing part and which carries the metallic contact plate which latter is insulated from the supporting member. My invention also more particularly includes the holding in place of the metallic reflector by means of the usual outer end glass (which may be a lensl and its usual. retaining ring. My invention also includes several other features of construction and combinations of parts as will "appear from the following description.

I shall now describe the several constructions of tubular portable electric lights embodying my invention illustrated in the accompanying drawings and shall thereafter point out my invention. in claims.

Figure 1 is a central longitudinal section with parts in elevation of one form of a tubular portable electric light embodying my invention shown with its circuit in the open condition. 1

Fig. 2 is an enlarged plan view of the supporting and insulating means for the Inctallic reflector and lamp socket carried thereby.

Fig. 3.is a central longitudinal section on a plane indicated by the line 3-3 of Fig. 2 as viewed from below and shows the contact plate and its supporting and insulating means as seen in Fig. 1.

Fig. 3 is a partial section similar to Fig. 3 but drawn to a larger scale showing more clearly the means for supporting and insulating the contact plate.

Fig. 4 is an enlarged partion central longitudinal section similar to the upper part of Fig. 1,'illust rating a modified form of my invention as embodied in a tubular portable electric light having an enlarged bellshaped outer end.

Fig. 5 is a-similar view of a further modified form of my invention as embodied in a' tubular portable electric light. having alarger bell-shaped outer end.

The particular portable electric light illustrated in Figs. 1, 2, 3 and 3 of the accom' panying drawings as an embodiment of my invention has a tubular battery-containing casing Which includes a main cylindrical or tubular casing part 1 of metal. A usual metallic end cap 2 is screw-threaded over the rear end of the casing tube 1 and is provided at the inside with a usual battery-supporting electrically conductive spiral thrust spring 3. A cylindrical battery of common form and having a usual paper insulating tube 1% is shown in place within the metallic tubulan casing part 1 with its zinc terminal in contact with the electrically conductive thrust spring 3 and with its carbon tern'iinal 6 in contact with the central terminal 7 of an ordmary miniature incandescent lamp having a bulb S and a usual annular screw-threaded base 9 which forms the other terminal of the lamp. A usual flanged metal ring 10 is screw-threaded over the forward end of the metallic casing tube 1 and holds in place thereon. an end-closingglass d sk shown as a usual lens 11. Means involving my invention and now to be described are provided for supporting the lamp with its base 9 in insulated relation to the tubular metallic casing part 1 and lens-holding end ring 11, thereby providing for controlling the lamp till circuit through its outer terminal 9 which terms also the supporting base for the lamp.

In the particular construction embodying my invention illustrated in Figs. 1, 2, 3 and 3 of the accompanying drawings a metallic cup-shaped lamp-supporting and reflectorsupporting member is provided and is shown as comprising an annular plate 12 having a cylindrical part 13 which is provided at its outer edge or margin with a slight outturned flange 11-. The cylindrical part 13 of this cup-shaped supporting member slides freely or loosely within the outer end of the tubular casing part 1 and the end flange 1 1 thereof rests upon the outer end of the tubular casing part 1 and is clamped thereon by the lens 11. A contact plate or contact disk 15 is carried by and insulated from the flat annular plate part 12 of the supporting member inwardly of the casing part 1 therefrom. The contact plate 15 has a central cylindrical socket-receiving neck or sleeve 16 shown as directed or projecting toward the inside of the casing. At its periphery the contact plate 15 has an inturned contact-making or circuit-completing cylindrical flange 17 which is externally of smaller size or of less diameter than is the internal diameter of the tubular metallic casing part 1 so that the outer cylindrical surface of the flange 17 will be, as appears in Fig. 1, supported in spaced relation to the inner surface of the metallic casing tube 1.

An annular insulating plate 18 is interposed between the annular supporting plate 12 and the annular contact plate 15. Also an annular insulating disk or plate 19 is shown as placed at the outside of the sup porting plate 12 within the cup formed by the cylindrical part 13. The annular contact plate or contact disk 15 is secured to the annular supporting plate 12 by means of fastening devices shown as tubular metal rivets 20, three in number, which pass through the contact plate 15, the interposed insulating plate 18, the supporting plate 1.2 and. the outer insulating plate 19, it being noted in this connnection that the holes in the metallic supporting plate 12 for the metallic rivets 20 are of larger size or larger diameter than these rivets so that the rivets 12 which are in contact with the contact plate 15, do not come into contact with the metallic supporting plate 12, as clearly ap pears in the drawings, particularly in Figs. 3 and 3 thereof. Also it is to be noted, as appears in the drawings, particularly in Fig 3 that the upset or turned-over ends or outer heads of the tubular rivets or eyelets 20 press the underlying portion of the outer insulating plate 19 into the enlarged openings in the supporting plate 12, so that these pressed-in portions of the insulating plate 19 will positively prevent the possibility of the metal rivets 20 coming into contact with the metallic supporting plate 12, the outer heads of the tubular rivets 20 being thus countersunk substantially flush with the outer surface of the outer insulating plate 19, and any shifting of the rivets 29 orot the contact plate 15 on. the supporting plate 12 is prevented. Additional openings in the supporting plate 12, the contact; plate 15 andthe'two insulating plates 18 and 1.9 are shown as provided at 21, the purpose of these alined openings 21 being to assist or for convenience in inserting the rivets 20 and for assuring that these rivets do not come into contact with the supporting plate 12, as will be readily understood.

A metallic reflector 22 of substantially usual construction is shown. as provided. with an inwardly projecting metallic screwthreaded lamp socket 23, shown as formed integral with the reflector 22 in a usual way. The screw-threaded lamp socket 23 is snugly but slidably received within the socket-receiving tubular extension or sleeve 16 of the contact plate 15 and is in electrical connection therewith, but is not in electrical con.- nection with the metallic plate 12 of the cup shaped supporting member by reason of the fact that the central opening of the annular supporting plate 12 is of larger diameter than the lamp socket 23 so that its inner edge is spaced outward from the lamp socket 23, as clearly appears in the drawings. In the construction illustrated in the drawings the central openings in the insulating plates 18 and 19 are shown as of the same diameter or same size as the internal diameter of the socket-receiving sleeve 16, so that the refiector 22 abuts against the outer insulating disk 19 and presses it against the inner insulating disk 1.8 at the inner margins of each disk surrounding the lamp socket 23, as is illustrated in Fig. 1. The lamp base 19 screws into the lamp socket 23 in the usual way, as appears in Fig. 1 of the drawings, so that the central terminal 7 of the lamp is exposed at the inside of the tubular casing part 1, and as has been hereinbefore. noted is in electrical connection with the carbon terminal 6 of the battery.

The outer edge or margin of the reflector 22 is shown as substantially coterminous longitudinally with the peripheral edge of the outer flange 1 1 which forms the outer peripheral edge of the metallic cup-shaped supporting member, but, as is illustrated in Fig. 1 of the drawings, the outer edge of the reflector 22 is spaced inwardly from the cylindrical wall 13 of this supporting member so as to be out of contact and out of electrical connection therewith. The lens glass 11 which, as hereinbefore described, at its marginal edge presses upon and holds in. place the marginal flange 1 1 at the metal c supporting member also presses upon the outer margin or rim of the reflector 22 and holds the reflector securely in place with the lamp socket 23 inserted into and firmly pushed into the tubular socket-receiving extension or sleeve 16 of the contact plate 15, as appears in Fig. 1. In. this connection it will be noted that the lens 11 prevents any possibility of rockingmovement of the reflector 22 which might bring its outer margin or edge into contact with the adjacent inner surface of the cylindrical. part 13 of the metallic cup-shaped supporting member. It will now be evident that the cup-shaped supporting member, having the supporting plate 12, cylindrical wall 13 and outer flange 14, is in electrical connection with the tubu-' lar metallic casing part 1, and that the metallic reflector 22, lamp socket 23 and contact plate 15 having the socket-receiving sleeve 16 and contact flange 17 are all insulated from this supporting member and also are insulated from the metallic casing part 1 and the lens-holding end ring 10.

Suitable manually operable circuit-controlling means are provided for electrically connecting the peripheral contact flange 17 of the contact plate 15 with the tubular metallic casing part 1 which, as hereinbefore noted, is in electrical connection with the zinc terminal of the battery through the battery-supporting thrust spring 3. In the construction illustrated in the drawings, a longitudinally movable contact strip 24 has a slightly inwardly bowed contact-making forward end 25 which, in the closed circuit condition is adapted to be wedged between the inner surface of the metallic tubular casing part 1 and the adjacent outer cylindrical surface of the peripheral contact flange 17 of the contact plate and into circuit-closing engagement with this flange 17 The contact-making end ot the contact strip 24 may be retracted away from its circuit-closing position out of contact with the contact flange 17, this position of the contact strip 24 being illustrated in Fig. 1 of the drawings. Near its forward contactmaking end 25 the contact strip 24 is provided. is appears in Fig. 1, with a longitudinal slot 26 by which it is guided on a small inwardly-projecting stud or rivet 27. The contact strip 24 may be operated in its longitudinal circuit-controlling movement by means of a slide 28 at the outside of the tubular casing part 1. and provided, as appears in Fig. 1, with guide lugs 29 which extend through a slot 30 in the tubular casing part 1 and are connected, as indicated in Fig. 1, to the longitudinally movable con tact strip 24 near the rear end thereof. The circuit will be maintained in the open. or in the closed condition by reason of the triction of the movable circuitcontrolling parts, in the construction shown in the drawings, this being facilitated by a slight outwardly extended projection 31 on the contact strip 21 and which in the rear or open circuit position of the contact strip 24 comes just within the forward edge of the slotted opening 30 in the casing part 1, as appears in Fig. 1 of the drawings.

It is to be noted. of the construction illustrated in the drawings and hereinbefore described that only the lower or zinc battery terminal 5 has an outwardly exposed metallic connection. The connections of the other or carbon terminal 6 of the battery through the lamp to its outer terminal. or base 9 include only the lamp socket 23, the reflector 22, the contact plate 15 together with its socket-receiving sleeve 16 and its peripheral flange 17 and. the three metallic rivets 20, none of these parts being exposed at the outside of the casing, but all of which are contained within the casing part 1 and are insulated therefrom as hereinbefore described, so that there is no point at which an accidental bridging and short circuiting the battery can take place.

In Fig. l; oi the accompairving drawings my invention is shown as embodied in modifled form in a usual type of tubular portable electric light having an enlarged or bell-shaped outer end. In this construction the tubular battery-containing casing in cludes a main cylindrical or tubular metallic casing part 32- and a usual bell-shaped. enlarged outer end part 33, shown as screwed over the end of the tubular casing part 32. A usual flanged metal. ring is screwed over the enlarged outer end of the outer bell-shaped part and holds in place thereon an end-closing glass, shown as a lens 35. a. metallic reflector 36 is inserted into or received within the outer bell-shaped end part ot' the casing in spaced relation thereto and is held in place therein by the lens glass which presses upon its outer edge or rim. which is spaced inward and out of contact with the adjacent outer end of the enlarged casing part as appears in the drawings. The lens is shown as provided adjacent to its outer edge with a slight annular shoulder 37 which fits within the outer edge or rim of the reflector 36, as appears in Fig. 4 of the drawings. At its center the metallic reflector 36 carries an inwardly projecting screw-threaded lamp socket 38, shown as Formed as a separate piece attached thereto, The lamp socket 38 snugly slides within and makes electrical connection with an outwardly turned neck or sleeve 39 ot a metallic contact plate 10 having at its periphery an inwardly turned contact flange 4.1.

The flanged contact plate =10 is supported by and insulated from a metallic supporting ill member shown as an annular supporting disk or plate 42 which fits within the smaller part or cylindrical neck of the enlarged bell-shaped outer casing part 33 and at its periphery rests upon the outer end of the main tubular casing part 32. The contact plate is firmly secured to the supporting disk 42 by means of tubular metallic rivets 43 which pass through the contact plate 40 and the supporting disk 42 and also pass through an interposed insulating plate 44 and another insulating plate 45 which insulates the outer turned over ends of the metallic rivets 45 from the supporting disk 42, the openings or holes in the supporting disk 4:2 for the securing rivets 43 being of larger diameter than these rivets and the adjacentportions of the outer insulating disk 45 being drawn into these enlarged openings by the tubular rivets or eyelets 48, so that the rivets do not come into contact with the supporting plate 42, as is clearly shown in the drawings. Also in this connection it is to he noted that the central opening in the annular supporting disk is suliiciently larger than the socket-receiving neck or sleeve 39 of the contact plate 40 that the inner edge of the metal around this opening is spaced outward away from and out of contact with the socket-receiving neck or sleeve 39, as also clearly appears in the drawings. The annular supporting disk 42 is firmly held upon the outer end of the tubular casing part by the pressure of the lens 35 upon the outer rim of the reflector 36 which forces the inwardly projecting lamp socket 88 into the socket-receiving neck or sleeve 39 as far as it will go or until the central part of the bowl-shaped reflector 36 abuts against the outer end of this socket-receiving sleeve 39. as is clearly illustrated in the drawings.

It will be noted that the chief difference of this modified construction from that iilustrated in Figs. 1, 2 and 3 and herein before described is that in the first described construction the supporting disk 12 with which the supporting disk 42 corresponds, has an outwardly turned cylindrical part 13 provided with peripheral flange 14 which is clamped between the lens glass 11 and the outer end of the main cylindrical casing part 1, whereas in the modified construction illustrated in 4 the supporting disk 42 does not have any outer parts corresponding to the parts 13 and 14 of the first described construction. In this modified construction the supporting disk 42 is held in place upon the end of the tubular casing part 32 by means of the reflector 36. In this modified construction preferably, as an additional precaution, an insulating ring 46 is interposed, as shown in Fig. 4 of the drawings, between the spaced wall of the outwardl' flaring bell'shaped end part 83 and the reflector 36, thereby to assure that by no possibility can the reflector 36 become displaced so as to come into contact with and thereby into electrical connection with the metallic end part 33. as will be readily understood. In other respects than above noted the modified construction above described and illustrated in 4 of the drawings is substantially the same as the first described construction illustrated in. Figs. 1, 2 and 3 of the drawings.

In the further modified constructicn of portable electric light illustrated in Fig. 5 of the drawings. my invention is shown as embodied in a tubular portable electric l ght of a usual type having an enlarged bellshaped outer end of greater d ame er or of larger size than that hereinbefore described and illustrat d in Fig. 4 of the drawings. In this modified construction now to be described main tubular metallic casing part 4? is provided. at its forward or outer end with a metallic screw-threaded ring 48 which screws over the screw-threaded outer end of the main tubular casing part 4? and is shown as provided with a terminal inturncd flange. An ou er enlarged bell-shaped metallic end part 49 of the casing is soldered or may be otherwise firmly secured to the end flange of the screw-threaded ring 4.8 and extends inwardly therefrom to form a flat supporting plate 50. which is shown as oltset inwardly from the adiacent porticn ot the end part 49 so as to form a shoulder around which the inner edge of the flange of the ring 48 is adapted to fit, as shown in F g. 5. An inner metallic contact plate 51 at the inner side of the supporting plate and having a peripheral inturned contact flange 52, is supported bv the sunnorting pla e 50 by means of tubular metall c rivets 53 which pass through enlarged holes in the sup porting plate 50 out of contact therewith and which also pass through an insulating plate 54 interposed between the supporting plate 50 and the contact plate 51 and through another insulating plate 55 outward from the supporting plate 50. drawing the surrounding portions of this outer insulating plate into the enlarged openings in the supporting plate 50, as clearly appears in Fig. 5 or" the drawings.

in this construction the lamp socket is carried by the contact plate 51 and is shown as a short metallic screw-threaded tube 56 secured to and projecting outwardly from the contact plate 51 through central openings in the insulating plates 54 and and also through an enlarged central opening in the supporting plate 50 so as to be out of that the lamp socket 56 projects outwardly centrally with an outwardly turned socketreceiving sleeve 58, which is shown as a separate tubular piece secured to the reflector 57. This reflector sleeve 58 snugly slides over the outwardly projecting lamp socket 56 and forms an electrical connection edge rests upon the outer end of the bell-.

shaped casing end 49 and is held in place thereon by a usual flanged metallic end ring 60, within which is fixed a screw-threaded band 61 for engaging the outer screwthreaded end of the enlarged bell-shaped casing part 49, as is clearly shown in the drawings.

In this last described construction, illustrated in Fig. 5, it will be noted that the supporting plate 50, corresponding to the hereinbetore described supporting plate 12 of the construction illustrated in Figs. 1, 2, 3 and 3 and also corresponding to the supporting plate or disk 42 illustrated in Fig. 4, is very securely and firmly held upon the outer end of the tubular casing part 47 by meansof the screw-threaded end ring 48, by which it is rigidly carried, as hereinbet'ore described, and of which it virtually forms a part. It is to be noted of each of the three constructions illustrated in the drawings and hereinbefore described that the reflector at its outer margin is spaced inward from the surrounding metallic casing part and is held in place in such spaced relation by the end-closing glass disk or lens of the casing, and also it is to be noted of each of these constructions that the supporting member or supporting plate holds in central position and receives the inward thrust of the central part of the reflector and that in each instance the reflector is maintained in central position by a detachable telescopic or sleeve connection with the metallic lamp socket with which it is in electrical connection.

It is obvious that various modifications may be made-in the constructions shown in the drawings and above particularly described within the principle and scope of my invention.

I claim:

1. A portable electric light having, in combination, a metallic casing part, a metallic reflector inserted therein in spaced relation thereto, a metallic lamp socket in elec-= trical connection with the reflector, a glass disk closing the outer end of the casing part and pressing upon the outer rim of the reflector for holding the reflector therein in spaced relation to the casing part, means for holding the glass disk in place on the end of the metallic casing part, means additional to said glass disk for supporting the lamp socket and the reflector in insulated relation to the metallic casing part, such supporting means including a metallic contact plate, and circuit-controlling means for electrically connecting said contact plate with said casing part.

2. A portable electric light having, in combination, a metallic reflector part, a metallic contact-making part, a metallic lamp socket carried by one of these parts,vthe

other of said parts being provided with a socket-receiving opening and being in electrical connection with the lamp socket, a metallic casing part into which the reflector part is inserted in spaced relation thereto, a glass disk closing the outer end of the metallic casing part and pressing upon the outer rim of the reflector part for holding the reflector part in the metallic casing part in spaced relation thereto, means for holding the glass disk in place on the end of the metallic casing part, and means for supporting the contact-making partand the adjacent inner end of the reflector part in insulated relation to the metallic casing part.

8. A portable electric light having, in combination, a metallic reflector part, a metallic contact-making part, a metallic lamp socket carried by one of these parts in electrical continuity therewith, and a metallic sleeve for the lamp ocket carried by and in electrical. continuity with the other of said parts and in electrical connection with the lamp socket.

4. The invention claimed in claim 3 in combination with a metallic casing part into which the reflector part is inserted in spaced relation thereto, a glass disk closing the outer end of the casing part and pressing upon the outer rim of the reflector part for holding the reflector part in the casing part in spaced relation thereto, means for holding the glass diskin place on the end of the casing part, and means for supporting the contact-making part and the adjacent inner end of the reflector part in insulated relation to the casing part.

5. The invention claimed in claim 4- in combination with circuit-controlling means for electrically connecting the contact-making part with the casing part.

6. A portable electric light having, in combination a metallic casing part, a metallic supporting member supported by and in 7. The invention claimed in claim 6 in combination with a glass disk closing the outer end of the casing part and pressing upon the outer rim oi the reflector for holding the reflector in the casing part in spaced relation thereto, and means for holding the glas disk in place on, the end of the casing part.

8. A portable electric light having, in combination, a metallic reflector, a metallic lamp socket carried thereby and projecting inwardly therefrom, a metallic contact plate, a socket-receiving tubular extension carried by the contact plate and into which the lamp socket snugly fits and. forms an electrical connection therewith, and means for supporting and insulating the reflector and lamp socket and contact plate.

9. The invention claimed in claim 8 in combination with a metallic casing part into which the reflector is inserted in spaced relation thereto, and in which said supporting means support and insulate the contact plate from the casing part, a glass disk closing the outer end of the casing part and pressing upon the outer rim of the reflector for holding the reflector in the casing part in spaced relation thereto, and means for holding the glass disk in place on the end of the casing part.

10. The invention claimed in claim 9 in combination with circuit-controlling means for electrically connecting the contact plate with the casing part.

11, A tubular metallic casing part, a metallic cup-shaped supporting member fitting within the end of said metallic casing part in electrical connection therewith, a metallic contact plate carried by and insulated from said cup-shaped supporting member and supported out oi? contact with said tubular casing part, said contact plate being provided with a central socket-receiving opening, and a metallic reflector provided with a lamp socket fitting into said central opening in the contact plate and in contact therewith, said reflector and lamp socket being supported out of contact with said cup-shaped supporting member.

12 in portable electric light having, in combination, a tubular metallic casing part, a metallic cup-shaped supporting member slidably tting therein and provided at its margin with a supporting flange resting,

upon the end of said metallic casing part, a metallic contact plate earned by and insulated from said cup-shaped supporting member inwardly ot the casing part therefrom and supported out of contact with said casing part, said contact plate being centrally r vided with a socket-receiving opening, a metallic reflector having a lamp socket projecting therefrom and slidably fitting into said opening in the contact plate and into contact therewith, the bottom of said cup-- shaped metallic supporting member having therein a central opening suiiiciently large that the lamp socket and the bottom 01? the reflector are supported out of contact there with, and the outer rim of the reflector being of smaller diameter and spaced inwardly from the outer end of said metallic cupshaped supporting member, a glass dish. closing the outer end of said tubular casing part and clamping in place thereon the flange of said cup-shaped supporting mem-- her and pressing upon the outer end of and holding in place said metallic reflector, and means for holding said glass disk in place upon the end of said tubular casing part. I

13. A portable electric light having, in combination, a, tubular metallic casing part, a metallic cup-shaped supporting member slidably fitting within the outer end of said tubular casing part and having a terminal flange seated upon the outer end of said tubular casing part, said cup-shaped supporting member being provided with a central socket-receiving opening, a metallic contact disk carried by and insulated from said cup-shaped supporting member in wardly of the casing theretron'i and provided centrally with a socket-receiving sleeve in alinement with the socket-receiving opening of said cup-shaped supporting member, said contact disk being supported out of contact with said tubular casing part, a metallic re flector having a metallic lamp socket projecting therefrom and snugly fittingin. the socket-receiving sleeve of the contact disk in electrical connection therewith and passing through the central openingin the cupshaped metallic supporting member out oi" contact with such member, the outer marginal edge of the reflector being disposed out of contact with and in spaced relation to the outer marginal end of the cup-shaped supporting member, and means pressing upon the marginal flange of said cup-shaped supporting member for holding said supporting member in place within the tubular casino, part.

i i. A portable electric light having, in combination, a metallic reflector, a metallic lamp socket carried thereby, a contact plate provided with a sleeve for receiving the lamp socket and in electrical connection therewith, and a metallic supporting member secured to and insulated from the metallic contact plate.

15. A portable electric light comprising tubular metallic casing part, a metallic cupshaped supporting member fitting therein, a metallic contact plate carried by said cupshaped supporting member inwardly of the casing part therefrom, insulation interposed between said cup-shaped supporting member and said contact plate, means for securing the contact plate to the supporting member in insulated relation thereto, a central opening being provided in said cup-shaped supporting member, the contact plate being provided with a socket-receiving sleeve, and a metallic reflector provided witha projecting lamp socket fitting snugly in the socket-receiving sleeve of the contact plate and out of contact with the metallic supporting mem her, the outer edge of said reflector being disposed in spaced relation and out of contact with the interior surface of the cupshaped metallic supporting member.

16. A portable electric light havin in combination, a tubular metallic casing part, a cup-shaped metallic supporting member slidable within said tubular casing part and provided on its outer margin with a limiting flange adapted to rest upon the end of the tubular casing part, a metallic contact plate carried by the metallic cup-shaped member at the side thereof removed from the outer end of the tubular casing part, insulation interposed between the adjacent surfaces of the cup-shaped supporting member and the metallic contact plate, means for securing the contact plate on the supporting member in insulated relation thereto, a socket-receiving sleeve being provided upon the contact plate at the inner side thereof, a metallic reflector within the cup-shaped supporting member and provided with a projecting metallic lamp socket snugly sliding within the sleeve of the contact plate and in electrical connec tion therewith, the bottom of the cup-shaped supporting member having therein an enlarged opening for the lamp socket so that the lamp socket is out of contact with the metallic cup-shaped supporting member, the outer marginal edge of the reflector bein spaced inwardly from the inner surface orthe cup shaped supporting member, a glass disk pressing upon the outer marginal edge of the reflector and upon the outer flange of the cup-shaped supporting member for holding the cup-shaped supporting member within the tubular casing part and for holding the metallic reflector in position with its marginal edge in spaced relation to the adjacent surface of the cup-shaped supporting member, and means for holding the glass disk in place upon the end of the tubular metallic casing part.

17. A portable electric light having, in combination, a tubular metallic casing part, a cup-shaped metallic supporting member fitting into an end of said tubular metallic casing part, a contact plate carried by said cup-shaped supporting member inwardly of the casing part therefrom and in insulated relation thereto, said contact plate being provided with a peripheral inturned contact flange spaced inwardly from the adjacent inner surface of the tubular casing part, a metallic reflector within the cup-shaped supporting member, a metallic lamp socket carried by the reflector, the reflector and lamp socket being out of electrical connection with the metallic cup-shaped supporting member and being electrically connected to the contact plate, a slidable contact finger within the tubular easing part adapted to engage the peripheral or annular contact-making flange of the contact plate between such flange and the tubular casing part, and amanually actuatable slide at the outside of said tubular casing part for operating the longitudinally slidable contact finger.

18. A portable electric light having, in combination, a metallic reflector part, a metallic contact-making part, a metallic lamp socket carried by one of these parts, a metallic sleeve for the lamp socket carried by the other one of said parts, and a metallic supporting member secured to and insulated from the metallic contact-making part.

19. The invention claimed in claim 18 in which the metallic contact-making part is a contact plate, in combination with a tubular metallic casing part upon which said supporting member is carried, said contact plate being provided with a peripheral inturned contact flange of less diameter than the internal diameter of the tubular casing part, a longitudinally slidable contact finger within the tubular casing part adapted to engage the outer peripheral surface of the inturned contact-making flange of the contact plate, and a manually actuatable slide at the outside of said tubular casing part for operating the slidable contact finger.

20. A portable electric light having, in combination, a metallic supporting plate, a metallic contact plate supported by the suporting plate, an insulating plate interposed between said metallic plates, another insulating plate outward from one of said metallic plates so that one of said metallic plates is interposed between the insulating plates, and a metallic fastening device passing through and securing together all of said plates, said metal plate which is between the insulating plates having therein an enlarged opening into which the insulating material of the outer insulating plate is pressed by said fastening device, whereby relative shifting movement of the metal plates and fastening device is prevented and the electrical insulation of the metal plates from each other is assured.

21. A portable electric light having, in combination, a metallic reflector, a metallic lamp socket carried thereby and projecting inwardly therefrom, a metallic contact plate, a socket-receiving tubular extension carried by the contact plate and into which the lamp socket snugly fits and forms an electrical connection therewith, a metallic casing part,

means for supporting the reflector and lamp socket and contact plate Within the casing" part out of contact therewith and in elec- BERNARD BENEDICT.

Copies of this patent may be obtained. for five cents each, by addressing; "the Commissioner of Patents.

Washington, It. 3.

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