US944540A

US944540A - Heat-coil.

Info

Publication number: US944540A
Application number: US41160508A
Authority: US
Inventors: Walter Leslie Coursen
Original assignee: Western Electric Co Inc
Current assignee: AT&T Corp
Priority date: 1908-01-20
Filing date: 1908-01-20
Publication date: 1909-12-28
Anticipated expiration: 1926-12-28

Description

W. L. GOURSEN. HEAT 00m APPLICATION FILED JAN. 20, 1908.

944,540 Patented Dec. 28, 1909 6QME65566. l'maeraz orr UNITED STATES PATENT orrios.

NE'W JERSEY, ASSIGNOR '10 \VESTEB'N ELECTRIC COMPANY, OF CHIGAGC, ILLINOIS, A CORPJRATION GTE ILLINGIS.

WALTER Lustre ooonsnn, or EAST our in:

944,540, Specification of Letters Patent. Earfientegl D93, 28, 1909,

Application filed .l'zin'iary .26, Serial. No. $1,605.

To all whom it may co nea/11,: tit Q1 in which the heat cartridge is held. on lie it known that I, VA-LTER Lnscir. Cooal the protector strip is ndicated at the right sun, a citizen of the United States. residin Fig. 1, such cartridge being shown'in ing at East Orange, in the county of connection with a well-known type of,pro and State of New Jersey, have invented a 1 teeter-strip. The cartridge is held between certain new and useful Improvement in l the

irings

9 and 10, the tension of the Heat-Coils, of which the following is a full, i spring tending to slide the tube 7 farther clear, and exact description. i into the shell ll hen the solder 8 is melt- My invention relates to heat-coil preteen i eclby abnormal currents in the heat coil,

devices for electrical circuits, and its Such movement of the tube is eilected and objectis to provide an improved heat cari the pin 5 which bears against the spring 11 tridge which is capable of use with the is free to press said spring against the l ordinary protector-strip. ground strip id to which plate 12 is con- My invention contemplates a heat carec fl 8. ci ed at the left of Fig- 1.

tridg'e in which the member or element thus grounding the circuit in a well-known erated by the action of abnormal currents manner. After the cartridge has thus operin the coil is adapted after such. operation i ated, it can be reset by merely reversing the to be reversed with relation to the heat coil. pin nd he tube 7 carried thereby. the The Several features of my invention may i Icn aining parts of the heat cartridge being be more readily understood by reference to fl ethe accompanying drawings, wherein In the slightly modified form of my in- F gure 1 18 a plan view of a protecto vention shown in Fig. 3 the pin 5 is not strip showing a pair of heat cartridges held reversible. e re r b tube 7 S S cu ed 7 therein, one of said cartridges being shown y SOltlBl in othe Sui ab e manner,

' the spool 1 and the other end to the metallic as operated to ground the circuit; Fi 9 within a collar 13 which is reversibly mountis a on'gitudinal section of a heat cartridg ed in the open end of the spool 1, said colerribodymg my invention; and Fig. .3 is a tar being preferably threaded in said spool. similar view of a modified form. To reset the cartridge after it has operated Like parts 211T? designated by similar charit is necessary merely to reverse the collar. acters of reference throughout the several 13 in the 810001 views. I. have thus provided a protective device The hollow metallic spool 1 h s c il f i for electrical circuits in which the heat coil heat-producing wire 2 wound thereon, one itselit and the shell within which it. 18

end of said wire being attached as usual to mounted are non'reveifsible, the resetting of the heat coil afer each operation involvingshell 3. In the bottom of the shell is a dish i instead the reversing of the'operated memst of insulating material inwhich the spool ber of the heat cartridge. 3. is threaded or otherwise secured, said What I claim is: spool being thus insulatedly mounted within 1. In a pro -ec ol 01 e e c circuits, the l ell. i combination with a heat coil, of a memerring more particularly to the einber s'urroiuided by said coil and projecting bodimgnt of my kijlrvention shown in Fig. 2, from (inc end thereof, said member being repin is reversi y mounted in the spool l, l versib c with relation to said coil. said pin being preferably threaded at eaph l Tin a prote ctor for electrical circuits, the end, so that either end thereof may be I combination with a non-reversible heat coil, threaded in the head 601. the spool. Sel of a reversibly mounted nieinbe'r projecting puree]?1 apout the pirli 5 (it meii nber or tube through said coil. i w 101 is normal T he in" ix c .itcn ".1 r .Olijhe pin but whiizh is adapted td de i e 1 ch; leased when heated by abnormal current in wound upon said spool, and a member assthe coil 2. Said tube is preferably held in llli'f throdgh the spool and projecting rom place by low fusing solder 8. one end i iereol. said member being reversi- Both the pin 5 and the tube 7 project be i ble with relation to said spool. yond the end of the coil 2, the "pin itself enl. In a protector for electrical circuits, the no tending beyond the tube. The normal posicombination with a heat coil, of a member surrounded by said coil and projecting from one end thereof, and HUS-1115 -tor renrersibly mounting suid member in said coil, said member being norn'mlly fixed with relation to sold coil but adopted under the influence of heat developed by said coil to have a slid ing motion relative thereto.

A heat. curtrid 'e comprising a spool, a heat coil wound tnere'on, :1 member surrounded by said spool and projecting from one end thereof, and means for reversibly mounting said member within said spool, I

said member being normally secured to the mounting means but sliding thereon under the influence of the abnormal heat developed by said coil.

6, A heat cartridge comprising a spool, .11 heat coil wound thereon, a mounting piece reversibly secured within said spool, and a member carried by said mounting piece, said nuunber being normally fixed with relation to the mounting piece but arranged to be rcleused by the efl ect of abnormal heat developed by said coil,

7, A heat cartridge comprising u spool, 51 heat coil wound thereon, a pin mounted within said spool and projecting from one end thereof, and a tube surrounding said pin and reversibly mounted in said spool with one end prl'ljecting beyond the end thereof, said tube being normally lined with reluticn to said spool but arr-un ed to be released by the efi'ect of abnormal lie-st developed by said coil.

3, In a protector for i the combination with shels, a spool mounted Within said shell and insulated therefrom, coil wound upon said spool, one e1 l of said coil being connected to said shell and the other to said spool, a, mountin piece reversibly secured within said'spoo and a, member carried by said mountin piece, said member bein normally fix' with relation to the mounting iece but arranged to be released by the e ect of abnor mal heat, developed by said coil.

9. In a, protector for electrical circuits, the combination with a shell, of a spool mounted within said shell and insulated so ace therefrom, a coil wound upon said spool, one end of said coil being connected. to said shell and the other to said 5 col, :1 pin mounted within said spool an projcctlng from one end thereof, and a tube surrounding said pin and reversibly mounted in said spool with one end projecting beyond the end thereof, said tube being normally fixed with relation to said spool but arranged to be released by the eliect of abnormal heat developed by said coil.

10. The combination with av hollow spool, of a heat coil wound thereon, a collar rc versibly mounted in one end of said spool, and a member mounted within said collar and normally held in fixed relation thereto, said member being adapted to be released by the action of abnormal heat developed by said coil.

11. The combination with a hollow spool, of a heat coil wound thereon, a dollar rever sibly mounted in one endof said spool, a tube mounted Within said :collar and. normally held in fixed relation thereto, saidtube being adapted to be released by the action of abnormal heat developed by said coil, and

a pin secured to the oppositeend of saidspool and-projecting throu h said .tube.

12. In a protector for c ectrical circuits, the combination with a shell, of a. spool mounted within said shell and insulated therefrom, a coil wound upon said spool one end of said coil being connected to said shell and the other to said spool, a collar reversibly mounted in one'end of said spool, a tube mounted within said collar and non tube bein adapted to be released by the tion of'a coil, and a said spool and rojectin through said tu e.

In witness w ereof, hereunto subscribe my name this 14th day of January A. D. 1908. i

WALTER LESLIE oounsnn Witnesses:

J 01m J. LYNG, CLARENCE G. S'm'rr.

normal heat developed by said pin secured to the opposite endni molly held in fixed relation thereto" said v