US1530862A - Electric illuminating device - Google Patents

Description

1,530,862 T. J. THOMPSON ELECTRIC ILLUMINATING DEVICE- Filed June 9, 1924 /11 l i A.

vMarch 24, 1925.

Y latented Mar. 24, 1925..

UNITED STATES PATENT oFFicr-z.

THOMAS J'. THOMPSON, OF CHICAGO, ILLINOIS, ASSIGNO-R TO STANDARD OIL COM- PANY, OF WBI'IING, INDIANA, AND CHICAGO, ILLINOIS, A CORPORATION OF IN- DIANA.

ELECTRIC ILLUMINATING DEVICE.

Applicationnled June 9,

To all whom it may concern:

Be it known that I, THOMAS J. TitolarsoN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Electric Illuminating Devices, of which the following is a specification.

M invention relates to an improvement in t e class of hand-operated devices for introduction of an incandescent electric lamp on one end of the device, in a batterycircuit thereon, into dark places to llluminate the latter.`

My device, which is of peculiar and relatively inexpensive and simple construction, is especially desi ed for insertion into receptacles in cleaning them, and particularly into the steel barrels used for shipping liquid petroleum products, such as gasoline, kerosene and the like, from the refinery. These barrels require thorough cleaning before lling, and for faciliating the work l have devised my medium to be withdrawably inserted therein to illuminate them for ready and advantageous exploration of their interiors. p

My device affords a convenient tool for this purpose, and one which is capable of being constructed from materials which are usually discarded or scrapped about a reinery-plant as being of but little, 1f any, value. Thus, the tubular handle-forming battery-containing portion of the device consists of short lengths of ordinary iron pipe, and the lamp-carrying tube of similar pieces of gas piping. I

In the accompanying drawing-- Figure 1 ,shows the device by a view in elevation, and

Figure 2 is an enlarged broken and mainly sectional view of the same, showing the parts substantially in their actual dimensions.

The tubular handle 3, which is shown at 3h1 in Fig. 1 to be longitudinally corrugated to afford a rm hand-grip, is preferably a section of iron pipe with its ends threaded for screwing thereon closing caps 4 and 5. A relatively narrow tube 6, which is preferably a piece of ordinary gas-pipe of suitable length, say three feet or thereabout, is screwed at one end into the cap 5. A bushing 7, secured to extend through the wall of the cap 5 in position diametrically op- 1924. Serial No. 718,826.

positc the connection therewith of the pipe 6, carries within the cap a hollow body 8 of insulating material divided by a'perforatcd partition 8n into chambers 8b and 8. A spring-pressed push-button 9 works in the chamber 8b through the bushing 7 and partition 8, and projects into position to be conveniently operated by the user of the device4 when held at the handle 3 in one hand. In the .handle .is confined the source of electrical energy, represented as a pair of ordinary dry storage- batteries 10, 10 in electrical end-to-end contact, the terminal 11 of the leading battery engaging a contact-button 12 carried on a disk 13 of insulating material confined about its edge between the adjacent end of the tubular handle 3 and a ange 12 in the cap 5.

On the advance-end of the pipe 6 is provided a cage-like shield 14 terminating in an abutment-ring 111a and containing and protecting the bulb 15 of an incandescent electric lamp in its usual socket, with the terminals in which latter insulated wires 16 and 17 are connected, these wires passing through the pipe 6 and projectin into the cap 5. The electrical circuit is ormed by an insulated wire 16 connecting the rearmost battery 10 with the end in the cap of the wire 16, of which the wire 16a is a continuation; and through the base of the body 8 there extend into the chamber 8 the similar spring-contact terminals 18, 18 to be engaged by the push-button, the wire ,17 being connected with the projecting end of one of these arms, the corresponding end of the other arm being connected with the button 12 by a section of insulated wire 18a.

To apply the device to its purpose, the user holding it at the handle 3 inserts the pipe 6 into the interior of the object to be illuminated, and closes the circuit at the push-button 9 to light the lamp.

I realize that considerable variation is possible in the details of construction of In improved device thus shown and described. and I do not intend to limit my invention thereto except as pointed out in the appended claims, in which it is my intention to claim all the novelty inherent in my in- 105 tube, caps closing the ends of thel tube, one of said caps carrying a chambcred'body-of insulating material and heilig provided with openings, a pipe seated in oneof said openings and entending at an angle to. the c ap, terminals in said cap, a circuit-closing push-button extending through an opening in the cap and adapted, when pressed inwardly, to contact with said terminals, a lamp carried by the free end of the tube, and conducting wires leading from said lamp to the terminals, battery and button.

il. An electric illuminating device 'comprising a handle-forming tube containing a battery, a cap on an end of said handle, a

into said body through its opposite end and` a pipe with one of which said button is electrically connected, and conducting. wires leading through the pipe and respectively connecting said lam with the other terminal and through the attery with said button.

3. An electric illuminating device comprising a handle-forming tube containing aA battery, a capon an end of said handle, a disk of insulating material conined by the cap against said end of the tube and carrying a button contacting with the adjacent battery-terminal, a pipe extending at an angle to the handle from the cap thereon and carrying a shield-surrounded incandescent electric lamp on its advance-end, push-button circuit-closing means including saidl button in the cap, andconducting wires leading through the pipe and respectively connecting the lamp with one. terminal of said circuit-closing means and indirectly with the other terminal thereof through the battery and said button.

THOMAS J. THOMPSON.

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