US1032362A

US1032362A - Electric lock lamp-socket.

Info

Publication number: US1032362A
Application number: US64378211A
Authority: US
Inventors: August J Kempien
Original assignee: Individual
Current assignee: Individual
Priority date: 1911-08-12
Filing date: 1911-08-12
Publication date: 1912-07-09
Anticipated expiration: 1929-07-09

Description

A. J. KEMPIEN.

ELECTRIC LOOK LAMP SOCKET. APPLICATION r1131) 001. 3, 190a. RENEWED 1110.12, 1011.

1,032,362. Patented July 9, 1912.

MINE 3 AUGUST J. KEMPIEN', ST. PAUL, MINNESOTA.

, ELECTRIC LOCK LAMP-SOCKET.

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Specification of Letters Patent.

Patented Julyt), 1912.

Application filed October 3; 1908, Serial No. 456,020. Renewed August 12, 1911. Serial No. 643,782.

To all whom it marl concern:

Be it known that 1, AUGUST J. KEMrmN, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented a new and use-' ful Improvement in Electric Lock Lamp- Sockets, of which the following is a specification.

My invention relates to improvements in electric light sockets and has to do more particularly with that class which is provided with means for preventing the removal of the lamp from the socket without the use of a key.

The mechanism disclosed in this application is an improvement upon the mechanism -the key being shown inserted so that the lamp can be removed; Fig. 3 is a vertical sectional View in elevation of the threaded inner shell and a block on which said shell is swiveled the capsule or covering being removed and the key shown inserted to allow the lamp to be unscrewed from the inner shell; Fig. 4 is a plan View looking down upon thcinner shell, the pintle being shown in section taken upon the line YY of Fig. 3, and Fig. 5 is a perspective view of the key.

In the drawings A represents a lamp having the usual threaded electrical contact thimblo B upon its neck B and C tlusocket having the capsule or outer shell E of usual construction. The capsule is provided with a head D which is secured thereto by means of a separable connection such as the lock groove and slot 2 and Said shell is also provided with an inner lining 1 of insulating material to prevent current from passing to the capsule from the electrical conducting parts of the socket. In the socket and secured between the head D and a shoulder 5 which is formed on the shell is a block or support F made of porcelain or other suitable insulating material and upon which are mounted the contact pieces ultimately oonnecting with the lamp. Upon one of these,

contact pieces 6, which is secured to the block by the screws 7, is a swivel pin orpintle 8 and free to turn upon said pintle is the threaded inner shell .9 of usual form. In the upper end of the inner shell is-an insulating disk 10 and between the swivel shell and the contact piece 6 is an insulating washer 11. The lower end of pintlehas a head and the upper end is adapted'to be upset over the washer 12 to secure the pintle, insulating disk 10, threaded inner shell,

lnsulating washer 11, metal washer 12 and contact piece 6 together.

' The insulating'washer 10 is formed with a lug 13 which projects through the threaded inner shell and which is adapted to impinge against a bar 14 of a key 15 said key being adapted to be inserted through an opening 16 in the outer shell and into a cavity 17 in the block, so that when it is desired to remove the lamp from the socket'it can be unscrewed by turning it in one direction and causing the lug 13 to impinge against the bar 1-1 on the key. The key can be removed by turning it up in the cavity 17 in the block and withdrawing it through the slot 16 which is arranged in transverse position in the capsule. The upper end of the threaded inner shell is formed with an upwardly projecting spring 18 which is adapted to sweep overthe lower surface of the block when the lamp is turned in a direction tending to unscrew it from the capsule, said spring allowlngthe capsule to turn freely and not permitting the lamp to be removed from it.

By reversing the motion of the lamp andturning it into the socket, the spring 18 is adapted to engage thcshoulder 19 in the head and hold the ca psule while the lamp is being screwed into the socket. Thus it is not necessary to insert the key in the socket to place alamp therein and it is onl necessary to insert a key in order thattl e lamp may be removed. As shown the socket is provided with a switch or what is commonly inner shell when the shaft. 22 is turned by means'oi the thumb-piece 23 1nt0 vertical leading one side of the circuit down through the parts of the switch and to the inner shell and the other side through the contact piece 6-andpintle 8, the parts of each side of the circuit in the socket being obviously insulated or spaced apart.

In accordance .with the patent statutes I have described the principles of operation of 'my invention together with apparatus which I now consider to represent the best embodiment thereof but I desire to have it understood that the construction shown is onl illustrative and that the invention can be carried out by other means and applied to uses other than those above set forth wit-hin the scope of the following-claims.

Having described my invention what I claim as new and desire to protect by Letters Patent is:

l. A device of the classset forth, com- ,prising, in combination, an outer inclosing shell, a threaded inner shell free to turn in 'said outer shell, an insulating block 'in-said outer shell having an indent, a swivel joint between said block and inner shell, a key inserted in said outer shell, key engaging mechanismv associated with said inner shell and a spring between said block and inner shell adapted to sweep over said block and engage therewith in said indent to prevent said inner shell from turning in onedireci 1 tion and allowing it to reverse.

2. A device of the class setforth, coin- ;prising, in combination, an inclosing outer shell, a lamp supporting member swiveled in said outer shell, an insulating block in said outer shell above said lamp supporting member and having an indent in its lower said socket shell when a lam surface and a yielding member carried by said lamp supporting member and adapted to sweep over said insulating block when said lamp supporting member is turned in one direction and to engage said insulating block in said indent when said lamp supporting member is reversed.

3. A lamp socket of the class set forth, comprising, an inclosing shell, an insulating support withinsaid shell, and a socket shell swiveled upon said support 'having means operable by a key to prevent the rotation of is being unscrewed, and a ratchet automatically prev venting the rotation of said socket shell in the opposite direction when said lamp isbeing screwed into said socket shell.

4. A lamp socket having a swivcled lamp engaging socketshell insulated therefrom and adapted to turn when a lamp is moved in a disconnecting direction, and a ratchet adapted to automatically hold the lamp engaging member against rotation while a lamp is being secured in said engaging member.

5. A lamp socket having a swiveled lamp engaging socket shell insulated therefrom and adapted to turn when a lamp is moved in a disconnecting direction, and means adapted to automatically hold the lamp engaging member against rotation while a lamp is being secured in said engaging member.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

AUGUST J. KEMPIEN.

Witnesses:

H. L. FIsoHER, R. A. FIscHnR'IQ Copies c t this patent may be obtained for five cents each, by addressing the Commissioner of'Patents,

- washingtoml). G. I