US2011692A - Electric light - Google Patents

Description

W. E. SIMPSON ELECTRIC LIGHT Filed July 24, 1933 wuc niet WE. @L'Wson Patented Aug., 2Q i935) srl/iras hollow E. Simpson, Princeton, Application fully 24, i933, Serial No. lldl 2 Claires. ('Cl. :Ellis-213) This invention relates to electric lights and more particularly to such lights w are used for short intervals of time in the manner ci a dash-light.

S A primary object of the invention is Ato so construct such a light that it may be easily set up in the position in which it is to remain and the light duicirly turned on and off by swinging the bulb carrier outward and inward and which carrier when the light is not in use protects the bulb against the weather, if located outside, and against accidental breakage no matter where located.

mother object of the invention is to provide a light ci this character which is simple and compact and which may he easily set up at any desired place ready for use and which may he supplied with current from either a self-contained. cattery or from any other suitable source.

in carrying out these objects the invention is susceptible o nicdications without departing -ilrom the spirit or sacrificing any o the advantages oi the claimed invention.

En the accompanying drawing Figure l represents e. front elevation oi a portion of a door with this light in place 'for illumimating the lreyhole;

Fig. 2 is a longitudinal section ci the light;

Fig. 3 is a iront elevation of the light with parts broken away and in section; and with the contacts in circuit closing position;

l is a transverse section taken on the line Cl-i ci Il; and

Fig. 5 is a view similar to 2 showing e. slightly different form of the invention.

In the embodiment illustrated this device is shown placed on a house door D in such position that when operated it illuminates the key-hole oi the loclr. it ls particularly useful ou automobiles; on motor boats; as a hed reading light; in closets; on stairways; cellars; and in any other place where a light may be useful, and it may he mounted in any suitable or desired manner.

As illustrated in Figs. l to l an open-front casing l is shown having a topy 2, baci: il, sides l l and an upper front ledge the latter being preferably equipped with an overhanging lip to shed water and prevent its entrance into the casing. All of these parts may be of metal or other suitable material and they :may he formed integrally as a single unit or of pieces mechanically united.

Secured to the inner :lace of the bacir 3 near its upper end is a plate l having at its lower end an inwardly and upwardly ex. ending ioot i3 to he located in the path of a swlngably mounted bulb carrier il). This foot il cooperates with. a small dry cell battery l) carried oy the 'oulh carrier ill and hy means of which the battery terminais Q' and 9 are forced into contact with and respectively engage the bulb terminal i5 and the metal hulls support ifi in which the bulb shank or neck is screwed. rThis occurs when the carrier iii is swung outward as shown in dotted lines in Fig. 2 thereby closing the circuit and lighting the bulb iii. When the carrier l@ is swung inward into the full line position of Fig. 2 the battery is moved away from foot i3 and its terminal il" disengaged. from the bulb support ld thereby breaking the circuit and extinguishing the light.

The bulb carrier is shown in the iorrn of a pocket-like casing pivotally mounted in the open-iront casing to swing into and out o said casing thru its open iront and when in normal closed position ionns a closure for said 'iront opening. This carrier pocket it includes a iront il and hach the iront extending at both ends beyond 'the ends of the back as shown clearly in Fig. 2. Sides lll connect the iront and haci: and are ci a width slightly narrower than the sides of casing l so that when the carrier l@ is swung inward into closed position the iront i l lies flush `with or slightly below the iront edges oi sai sides i of casing i with the upper end of iront il underlying; and abutting the inner face of casing l. rihe sides lll which connect the iront il with haci; i?. of the pocketdllre carrier l@ have their ends bevelled as shown in Fig. 2 and the lower end of back lil carries an inwardly extending shelf ifi which is provided with a bulb socket il] so that when a bullo is screwed therein the depending lower end ci front li projects heyond the bulb and forms a protective hood there ier. The upper end of baci; i2 carries a 'transversely extending tubular barrel or hearing i3 to receive a pintle iii which is shown in the form of a holt extending thru the sides i oi' casing l and thru said barrel forming a plntle i or pivotal ly mounting carrier casing i@ in casing l. lnnut El) on said holt when sufficiently tightened rictionally holds carrier lil in any of its positions: When so mounted casing i@ has its upper end located in casing i and extends far enough thereinto to abut the inner face of ledge when casing i il is closed as shown in full lines in 2.

lt will thus be seen that when a dry cell il is placed in the pocket oi' casing lil one ci the terrninals 9' of said cell will lightly rest on the terminal or contact lll of bulb iii and the other end of 'the battery will be so located as to engage foot 8 when the casing W is swung outward into the dotted line position of Fig. 2. When such engagement occurs the battery will be forced into the pocket by the pressure exerted by said foot and cause the other terminal 8" of battery 9 to also engage the bulb support or shelf I with which the shank of the bulb is in electrical contact thereby closing the circuit and lighting the bulb. The light will remain on as long as the casing i is swungoutward and when manually pushed inward to closed position the contacts will assume the full line position shown in Fig. 2 thereby breaking the circuit and extinguishing the light.

A mounting or attaching element in the form of a bracket 2l is carried by the casing li being fastened' in any suitable lmanner preferably to the casing back 3 for mounting the light on a suitable support in any desired locality. This bracket may be of any desired shape according to the'place where the light is to be used and it may be equipped with any suitable means for securing it in place, screw holes being here shown for this purpose.

In Fig. 5 the light is shown connected with a current supply wire 22 designed to be connected with any suitable source of electricity, the dry cell 9 of the other figures being omitted in this form.

The current supply wire 22 is connected with the plate 'I' by an insulated bolt 23, said plate forming one pole of the circuit and the foot 3' thereof projects in the path of a cooperating contact 24 carried by the bulb carrier or shield I0' which is similar to that shown in the other gures. This contact 24 is shown in the form of a metal plate or strip secured to casing i0' and having at its lower end a laterally extending ringer 25 engaged with the'bulb contact or terminal 26, said bulb casing or base shell being grounded on casing l0'. The upper end of strip 24 is bent inward to form a nger 2T to be engaged by toot t' when casing l0 is swung outward a predetermined distance and thereby close the circuit and light bulb i5. l

It is obvious that in the form shown in Figs. i to 4 when the bulb carrier or shield i0 is swung outward a certain distance the foot 8 will engage the battery cell 9 and check its movement so that the further swinging out of the shield will cause the battery to be moved longitudinally relatively to the shield and thus cause the spring contact 9, which is shorter than contact 8', to

engage the bulb casing or base shell i6 and thus complete the circuit and illumine the bulb.

When the shield is swung inwardly the battery is'moved away from foot 8 releasing the battery from pressure, and the force of spring contact '9' will move the battery rearward relatively to the 'shield and separate contacts 9" and i6', break the circuit and extinguish the light.

In the form shown in Fig. 5 When'shield I0' is swungV outward contact nger 21 engages foot 8' vlocated in its path and closes the bulb circuit and 'limited by engagement of the toe of foot 8 with the front wall of shield I0 or by the battery 5 engaging member I.

l claim as my invention: Y 1. In an electric light, the combination of a base member, a bulb shield movably connected to the base member and having an electric light bulb and a storage battery cell, sa'id bulb and cell having cooperating contacts, an element on the base member inthe path of the cell when the shield is moved in one direction whereby the movement of the cell is checked and the electric circuit is completed by further movement of the bulb into engagement with the contacts oi. the battery cell.

2. A lighting device gcomprising a xed part, a second part movable upon the fixed part, an electric light bulb carried by the movable part, a storage battery'cell carried by the movable part, a projection on the fixed part to check the movement of the battery cell when the movable part is moved relatively to the xed part, contacts on the battery cell against which the light bulb contacts l

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