US1143937A

US1143937A - Snap-lock for electric-socket shells.

Info

Publication number: US1143937A
Application number: US62402611A
Authority: US
Inventors: Tonjes August Carl Both
Original assignee: ZEE SOCKET AND Manufacturing CO
Current assignee: ZEE SOCKET AND Manufacturing Co
Priority date: 1911-04-29
Filing date: 1911-04-29
Publication date: 1915-06-22
Anticipated expiration: 1932-06-22

Description

T. A. C. BOTH.

SNAP LOCK FOR ELECTRIC SOCKET SHELLS.

APPLICATION FILED APR. 29. 1911.

I J 2 I a I 1 1 I I I WIN/88.58 INVENTOR T. A. C. BOTH.

SNAP LOCK FOR ELECTRIC SOCKET SHELLS.

APPHCATION FILED APR. 29, I911.

Patentd June 22, 1915.

2 SHEETS-SHEET 2 TGNJES AUGU 'T 1 G52 MASSACHUSETTS.

2am; BQT'H. or NEW YORK, N.

AND MFG. c0.v OF Bcs'mN, MASS.9.CHUSE?Z'ZE, a:

filZAf-ifiCK FOE ELECTRIi'i-SOCKFT SHELLS.

Specificatian of Letters Yatmt.

. v .1 V iiiwi 412N533. 5

Faint Appiication flied April 29, 1911. Seriai N0. wi t 0%.

soda-i; mu? i hi'ii :uni n-m..;.' w w- 1 iliiiiik i xl' rwlib ing and iii, mum-ting rim hcii mui my. mvn iimltfjfi he NUHHi-J'Ji in and surniiumhwi in. u

)hiv mriii-uimiy it relates to :i movai'iiu ind-11mg rin' inning one or mun: engaging an! diwn "in ilI'XIiS having :in m iciuiing nwmhvi hvtwevn Liw mnuLh of thv cap-and thv mo h f the shuii. 01 between the mouth of hv my and (in shade huhi r ring. if vni is Br-.4

Mv im -ntinn further cunlpi'isvs (rvrtain iiOitiiin mi (-niwtrur-iinn ilh'ii will be more ily i1 =wnixinfiviih-w-i'ihi-d in the: specific-w inn arm puiniml nut in the claims.

I in ihv zu-wmnmnving drawings showing iihwtmiiw vinlmiiinwnts 0f mv inwntion and ii. hi h fin m rci'm-vnw numr-rais rein! in siznihu' puifl in the Rm'vini fi{: :i'(*S- Figrni'v 1 i\ :i siih vim'ntion hf my soi'ki-t. partly UI'LAKIZ mun fur purposes of it-aw" Hint-4min n. uni h0\\'in it mountvii in f! h \vhivh in QliiPfli mfltinn: Fig. i \"iiiifli w iion through the sovket Fhvii UH the lim- -2 of Fig. 1: Fig. 3 is a. (Mail pm i-viiw x'iuw 0f the preferred min of snap lurking ring: Fig. 4 is a plan view f the mannvr of stamping the sections of the. lovkingz iin; oilt of a blank: Fig. 5 is :1 dvir il horiz ntal swi-tinn on the line 5--5, Fig. l. shnwins miipum'ing engaging surfiwus hviwwn thv inviting! ring and the cap: Fig. 3 a side deviation of a modification, par'iiy iHUiWIi away and partly in section fm purpwws ui clearer liiubtrationg Fig. 7 is w-iiimi s tion on the line 7-7 of Fig. *1, iL -hii in the iir0 3tion of the arrow: Fig. is a (iiiilii. [WlFEfMHtiYQ View of a modified finm ni' inching ring: HSQLi in the construction iilushatw! in Fig. 6: Fig. 5) is a horiznntai section on the line 9-9 of 6 nap i Um arm n Kin.

z aw nun:

1 Una tion of the cap 9. an inturned flange 12 serving to prevent the ring from becoming disconnected from the cap and vet not preventing the relative rotation of the ring with re lation to the cap. By the aid of this locking ring the cap 2 may be screwed up so as to hold the husk 3 in its proper position without fear of having the cooperating locking surfaces between the ring and shell reach a position wherein the key 4 would not register with the opening 5 in the husk. After the cap has been secured to the nozzle 6 and the key has been made to pass through the opeiiing 5 of the husk. the locking ring 10 can be readilv rotated in its seat 111 by the finger of the operator. until the engaging end 13 registers with the opening 14 in the shell 1 wherever that opening happens to be located with relation to the original position of the spring arm 11. At the same time the cut out portion 40 of the shell will receive the indent d portion 41 of the ring to which the. arm is connected, preferably by being formed integral with it. Of course, when more than one spring arm 11 is used, th n the engaging members 13 of each spring arm 11 will have to be brought into register with its ova openings 14, as well as the indented portion 41 with its own slot 40 Of course. in locating one of the engaging members 13 the others will also be opposite their own openings 14 so that the shell 1 will be secured by means of these spring arms to the locking ring 10.

To prevent the relative rotation of the shell 1 and the cap 2. I may in some cases, though not necessarilv. provide the shell and ring with cooperating locking surfaces. T hese surfaces may be formed in various ways to accomplish their desired functior. They may. for example. take the form of a pluralitv of openings 15 in the ring and teats 16 on the interior surface of the tap formed in anv suitable manner but preferably by ind nting the can as shown in Fig. 5.

The

arms

11, 11 are mounted within and prot cted bv the shell 1 onlv their engaging members 13 being exposed. their engaging surface 17 cooperating ith the engaging surface 18 of the shell. The openings 14 in the shell are .gxhstantially closed by the engaging ingmbers 13.

One portion of mv in ention consists in locating the releasing members 13 beneath the mouth 118 of the cap 2 and aboue the mouth 19 of the shell 1. When a shade holder ring 20 is used these engaging members 13 are located preferably between the month 118 of the cap and the shade holder ring 20.

The advantage of such a construction is obvious. The releasing members 13. 13 are brought well down beneath the mouth 118 of the can and toward the mouth 21 of the husk 3 where they can be readily grasped and pressed in by unskilled labor. whenever it is desired to disconnect the shell 1 and cap 2. \l'hile I locate the releasing member 13 in substantially the position shown it is, of course. to be understood that it may be mounted nearer the mouth 118 of the cap 2. but beneath it, or nearer the shade ring holder 20 as the particular exigencies of the case may demand. I have found in practice that a hen these arms are located in substantially the position shown they can be readily pressed in by the thumb and forefinger of the operator even though the entire shell is surrounded with a husk In the old construction of having a snap shell formed by serrated surfaces on the cap and shell, these surfaces. when the socket shell was mounted in a husk. were rendered inaccessible and it was impossible to disconnect them except by forcing a screw driver or other tool up into the husk and betu'wn the Cap and shell. This usuallv resulted in marring the cap or shell. or both of them. so that the two members did not again rcadilr eotipcrate so as to hold the parts in exact alinewant. if the engaging members were not entirely mined.

My locking ring mav be formed in various ways. Ireferablv. I form each ring out of two separate blanks 101, 121 which are stamped out of a sh et of metal 22. Fig. 4. These blanks 121 are then curved and riveted together bv the ri ets 23 as shown in Fig. 3., It is to be understood. however, that the locking rings may be formed in any suitable manner and out of one piece of ma terial if so desired. Fig. 8.

In some cases instead of using the engag ing surfaces 15 and 16. or in addition to them I may provide wedge or inclined s-ufaces 24. 24 upon the shell to Coiiperatc with a locking ring 26 carried bv the cap 27. The inclined surfaces 24. 24 incline in the direction of an element in the surface of the cylindrical shell. their highest portion TT merging substantially into the circum ferenee of the shell 25.

The locking ring 26 is provided with downwardlv extending spring arms 28 having engaging members 29 provided w th slrts 30. 30 to receive the inwardly extending lugs 31. 31 of the shell 25. Fig. 6. This locking ring 26 is also provided with one or more inwardly projecting

lugs

32, 32 preferably formed l-v stamping them out of the ring. Fig. 8. These lugs are preferablv. though not necessarily. placed near the ends of the ring so that when thev cooperate with the wedge or inclined surfaces 24. 24 carried by the shell, they will be caused to ride up the inclined or Wedge surfaces. as the shell 25 is pressed home in the cap 27 and expand the locking ring,26 against its seat 33 in the lower portion of the cap 27 and in this nnnl frictionally hold the ring 26, with more spring arms for locking the shell and ring together and having an engaging mem ber accessible between the mouth of the cap and the mouth of the shell.

2. In a snap lock for electric light switches the combination of a shell, a cap, a rotatable ring mounted in the cap, one or more spring arms depending from the rotatable ring, a portion of the spring arms being accessible between the mouth of the cap and the mouth of the shell.

3. In a snap lock for electric light switches the combination of a cap provided with a rotatable ring, a shell. depending arms from the rotatable ring, and means carried partly by the ring to cause the ring to automatically expand and lock the cap and locking ring together upon the insertion of the shell.

4. In electric light sockets the combination of a cap, a rotatable member carried by the cap and provided with one or more depending locking spring arms, cooperating locking surfaces carried by the ring and the shell to prevent the rotation of the ring after it has been moved into its adjusted position, a shell to cooperate with the cap having one or more openings located beneath the mouth of the cap for the reception of a portion of the spring arms so that they may be readily operated to disengage the cap and ring.

5. In electric light sockets the combina tion of a cap provided with a rotatable locking ring having one or more depending locking spring arms, a shell provided with one or more openings located beneath the mouth of the cap to receive the engaging members of the spring arms, said spring arms closing the openings in the shell.

6. In electric light sockets the comblnation of a cap provided with a rotatable locking ring having one or more depending looking spring arms and one or more indented portions, a shell provided with one or more openings between its ends to receive the engaging members of the spring arms and provided with one or more cut out portions to receive the indented portions of the ring, said spring arms closing the openings in the shell.

7. In electric light sockets the combination of a cap provided with a rotatable locking ring having, one or more depending locking spring arms and one or more surfaces to cooperate with inclined surfaces carried by the shell, a shell provided with inclined surfaces to cooperate with the surfaces of the locking ring and with an opening or openings located beneath the mouth of the cap to receive the operating member or members of the spring arm or arms.

8. In electric light sockets the combination of a cap provided with a rotatable locking ring having one or more depending spring armsand with one or more surfaces to cooperate with the inclined surfaces carried by the 'shell, a shell provided with surfaces inclined in the direction of an element in the surface of the cylindrical shell to cooperate with the cooperating surfaces carried by the ring, said shell being provided with an opening or openings located beneath the mouth of the cap to receive the operating member or members of the locking spring arm or arms.

9. In electric light sockets the combination of a shell, a cap, and rotatable automatic engaging means having a member located between the mouth of the cap and the mouth of the shell which member has means to hold the cap and shell together.

TONJES AUGUST CARL BOTH Witnesses:

BENJAMIN Srnauss, THOMAS J. SLAHEW.