US1053174A

US1053174A - Pull-socket.

Info

Publication number: US1053174A
Application number: US63385011A
Authority: US
Inventors: Harvey Hubbell
Original assignee: Individual
Current assignee: Harvey Hubbell Inc
Priority date: 1911-06-17
Filing date: 1911-06-17
Publication date: 1913-02-18
Anticipated expiration: 1930-02-18

Description

H. HUBBELL.

PULL SOCKET.

.APPLIOATION FILED JUNE 17, 1911.

Patented Feb. 18 1913.

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APPLIGATIQN FILED 11111317, 1911.

Patented Feb. 18, 1913.

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` A TTOH/VEY lets and that the 1break is a HARVEY HUBBELL 0F 'BRIDGEPORT, CONNECTICUT.

PULL-SOCKET.

Application :filed J'une 17, 1911. Serial No. 633,850.

To all whom lt may concern: v

Be it known that I, HARVEY HUBBELL, 'a citizen of the United States, rresiding at Bridgeport, county of- Fairfield, State` ofE Connecticut, have invented an Improvement in Pull-Sockets, of which the `following. is a specification.

This invention has for its object vto gen-Vl erally improve the construction and Inode of operation of pull sockets and especially to provide a pull socket which may be operated by a chain or cord attached to a lever not on the shaft of the switch and wholly insulated from the switch mechanism, my novel mechanism accomplishingthe desired result -with a relatively short movement ofthe lever and requiring -but a relatively sho-rt slot in the socket,'the lever moreover being pivoted' centrally thus avoiding a side pull upon the socket in a direction at right angles to the path of movement of the lever.-

An important advantage of t-he presentstructure is that I avoid the use of a guide through which the' chain must pass and the attachment of the chain to a moving part within the-shell. It is of course well understood that the breakingof the chain is the accident most likely to ha pen to pull sockost certain tobe within the shell, thus putting the lamp out of commission and requiring the services of an (electriciany to repair it.

In the accompanying drawings forming a part'ol this specification, in which similar reference characters indicate the same parts in allvthe views, Figure 1 is an elevation of my novel socket, the shell bein shown in sec-tion; F ig; 2 is -a' plan View o the operative parts,` looking up as seen in Fig. 1, the lower insulating block andthe binding posts beig removed; Fig '3 anI eleva-j tion, partly broken away, from a point off view opposite to'that in Fig. 1; Fig. 4 a section on the line 4--4 in Fig. l looking in the direction of the arrows; Fig. 5 a plan ,view'of the lower insulating blocks as seen in Figs. 1 to 4 inclusive, showing the springy contact plate; Fig. 6 an elevation of the insulating gear wheel detached; Figs, k7, 8,- and 9 reverse elevations and an edge-view of the operating disk detached; Fi 10 an elevation of the fixedninsulating p ate detached; Fig. 11 a view similar to Fig. 1

showing a modified construction; Fig. 12 is a bottom plan view ofthe upper insulating blockas shown in Fig. 11 and the operative opposite to that. in Fig. 11.

parts carried thereby, one of the binding posts being removed. Fig. 13 is a sectional `view on the line 13-13 of Fig.l 14, this view-showing the parts from a point of view Fig. 14 is a Specification of Letters Patent. Patented-Feb. 18, 1913.

section on the line 14-14 in Fig. 13, looking in the direction vof'the arrows. Fig. 15 is a lplan view of the upper face of the lower insulating'block as seen in Figs. 11 and 14,

showing the spring contact plate. Figs. 16,

and v17 are respectively an edge vview and a. side elevation of .the insulating operating device or 4gear member detached. v

20 denotes the screw shell,\21 and 22 insulating blocks to one of which V(block 21) l the vscrew shell is-attached, {S3-the socket shell, 23 and 24 binding posts, and 25 and '26 binding screws in the respective binding posts. y

27 denotes a. base plate which is secured to insulating block 21 by a screw 28 which also secures a contact spring29 to said insulating block, said contact'spring being adapted to be engagedv by the center contact of a lamp (not shown). Binding postl 23 is secured to insulating block 22 by'a. screw 34 and to insulating'block 21 -by a screw 35 which also secures the screw shell to said block. Binding post 24 is secured to insulating block 21 Iby a screw 36 (seel dotted lines Fig. 1) and to insulating block 22 by a screw 62 which also securesa spring plate 49 to said block.

30 denotes a transverse shaft, one end of which is journaled in an arm 31 extending from the base plate, the other end Abeing `journaledin an angular head 37 which is itself mounted between an arm 32'also extending from lthe base plate and a boss or projection 33 on insulating block 22. The angular head normally lengages an an lai` recess 38 in boss 33 which locks said an annularrecess 39 in the boss,ffor a purcad ragainst rotation, said head being adapted when pushed .forward slightly to rotate in pose presently to be-explained. An' louter A recess 40 is provided in said boss to permit' .the insertion ofvavl screw driver .to engage, This construction will a Slot in head"37. be readily understood from Fig.- 5 which see in connection with Fig. 4.

41 denotes a. fixed insulating platethrough which ,the shaft passes', rotating freely therein, and which is secured in any suitable manner as to arms 4 2 which extend from the base plate. The insulating plate, which maybe made of fiber or any suitable insulating material, is provided at its ends with

studs

43 and 44, to either of which the operatling lever 45 may be pivoted, as will be. more fully explained.

' 46 denotes a cam loosely mounted on shaft which is constantlyengaged by a spring 47 attached tothe base plate' as at 48 and is adapted in' the lcircuit' closing position to engage a spring plate 49 which is connected to binding post 24,' (see Figs. 4 and 5.)` Cam 46 is providedon its inner sidewith a recess 50 (see Fig. 4) which is loosely engaged byl lu'gs 51 which project. from the' shaft and cause the-cam to rotate with the shaft. It will be noted thatl spring 47 is curved and `re-curved so as to give it great resiliency, the action' of this spring, in connection with lugs 51 and the recess inthe cam, being to cause the cam to move forward to open vand close the circuit with a snap when it passes the center of en agement with spring plate 49. The shaft 1s operated to open and closethe circuit by means of a seg# either a full gear wheel or a segment.

ment gear 52 on the operating lever which engagesV an insulating gearwheel 53 loosely mounted on the hub 54 of the disk 55 which is rigidly secured'to the shaft, as by a drive lfit. Gearwheel 53 may. be made of any suit` able insulating material, as fiber, and may be It will be noted that the radius of the pitch ...line of segment gear 52 is greater than the radius of the pitch line of insulating gear wheel 53. I thus produce adlnerential acd tion between the segment gear and the insuf insulating plate 41 is provided with -a cor--P` responding number of angular recesses 57.

lating gear wheell which gives the required amount of rotation of the insulating gear wheel with a relatively short movement yof the opera-ting lever. I'nsulating gear wheel 53 in this form is provided withlangular` recesses 56, four in the present instance, and

Disk I55 which is rigidly ,secured totheshaft is provided upon one side with lugs 58, two 1n the present instance, adaptedto engage 4 the recesses in the insulating plate and-upon theopposite side with a corresponding number oflugs 59 adapted to engage the recesses in the insulatmg gear wheel. These lugs haveangular engaging faces and' inclinedbacks so as to cause orlpermit movement in one direction only.

\ gear wheel, 'the attachment bei vdenotes a coil sprmg'surrounding the shaft, one end` of which isconnected to angular he'ad37 and the other to theinsulating the present instance by bending-'tie ends of.t

the spring parallel-with the axis thereof and insertin them in holes in the angular head and in t e insulating" ear` wheel', the hole in 3 the gear wheelbeing indicated by 61. (See Fig. e.)

v. The operation is asf'ollowsziWhen the lemade in.

ver is operated it will cause the insulating gear'wheel to carryA disk 55 and the shaft forward through the engagement of the walls of recesses 56 in the insulating gear. .wheel with lugs 59 on thedisk which is ri idly secured to the shaft. I"When the disk 1s driven forward by the insulating gear wheel, lugs 58 uponthe disk will ride out of recesses 57 in the insulating plate and will bear upon the solid portion of the plate between two ofthe recesses, spring 60 yielding and permitting the shaft and disk to move :slightly longitudinally. This movement of the insulating .gear wheel both winds the 'spring and compresses it longitudinally. The instant spring 47 snaps the cam to the circuit openin or closing position s ing 60 by its-'longitu inal expansion will orce the insulating gear wheel and shaft forward and causeA lugs .58 in the disk to engage recesses 57 in the'insulating plate which will lock the disk andshaft against backward moveturn the insulating gear wheel and the lever to their normal positions, the recesses- 56 with which lugs 59 on the disk have been in engagement passing backward away from the lugs (the spring compressing longitudinally) whichsnap into the other pair of recesses 56 at the end of the backward movement ready to carry the disk andshaft -forwardl again at the r'next operation of the in- `sulating gear 'wheel `b v means `of the lever.

Should it be required at any time to increase the tension of spring 60 theoperatonmay m- '.sert a screw 'driver in the Slot in h ead 37, push said head forward. slightly against the power of the vspring* out of angular recess 38 and into annular;l recess '39 and then wind the spring as much as may be necessary to secure prompt return of the lever to its normal position when the pull is removed, and

then allowthe spring to force the head backward into engagement withy angular recess 38. l Y

In Fig. 1, the socket is shown in position to receive a lamp in the upright osition. Shouldit be required to use the soc et with a depending lamp the lever -would be removed from stud 43 and placed upon stud 44.

In the form of the invention shown in Figs 11 to 17 the principle of operation is precisely the same as in the other form, the

differencebeing 4in details of construction and arrangement. Referring to said figures, 20`denotes the screw shell, 63 the socket shell, 21 and 22 insulating blocks, to one of which (the ,block 21) the screw shell is attached by means-of screws 64 which also secure to 'said shell-fand tosaid block 21 a yoke or bridge piece 65 formed integral with a'binding post 66 attachedrat itsopposite end to the block 22 by means of a screw passing through an opening 67 (see Fig. 12) in said 'n ment. When the pull upon the `lever is relieved the unwinding of sprmg 60 will reatl block, lSaid bindingpost being provided with a binding screw 68. 69 denotes the base plate which is secured to the block 22 by a screw 70 said base plate being formed with i,

an integral binding post 71 carrying a binding screw 72. 73 denotesal 'spring plate secured to t-he base plate 69 as by a'rivet 74 69 and attached. to the' insulating block 2 1,

by means of a screw or`bolt 79 A(see Fig. 1'3') entering an 'opening 80` (see Fig. 15) in said block I21. The arms 78 together l.with the4 binding post .6.6 constitute means for conneet-ing and spacing the insulating

blocks

21 and 22. The binding post 66 to which one of the line wires is attached is, as will beseen, directly connected by means of its yoke piece 65 to the screw shell 20. The other loinding post 71 to which the other line wire is attached connects through the lbase plate 69 and 'spring plate 73, thence through the circuit closer with the spring plate 75, screw 76 and center contact 77.

The switch or circuit closing mechanism in the present form of the invention is substantially identical with that in. the form of the invention 'first described and need not be referred to in detail except to note the following diiferences. In the present case the angular head 37 is mounted in an angular recess formed by two

bosses

81 and 82 on insulating

blocks

21 and 22 respectively. (See Fig. 14.) The insulating plate41 is secured to the arm '78 on the base plate, which is attached to the insulating block 21, and to a second arm 83 extending from said base plate. Also in the present instance the insulating gear 85, which corresponds in function tothe lgear 53 in the form of the invention last described, is formed with two separate segments 84 ad-apted respectively to beengaged by the segment gear 52 on the operatinr lever, accordipg as said lever is pivoted upon stud 43 or. stud 44 of insulating plate/11.v In place'of the angular recesses 56 with which the gear. 53 in the form of the invention last described is provided, the insulating gear 85 is formed on its face adjacent the disk 55 withinclined recesses or grooves 86 which are engaged by`the lugs 59 on the disk 55 in the same manner as the recesses 56. Itis thought that the operation of this form of the invention will be clearfrom the foregoing description of the operation of the form first described without further explanation. l

Having thus described my invention I claim:

1. A pull socket comprising switch mechanism including 'ashaft, a disk secured to the sha-ft and provided with a hub, a spring controlled gear mounted to rotate on the' hub, intermediate operating connections whereby the disk and shaft are rotated and a segmental gear engaging the spring controlled gear.

2. 'A pull socket comprising an insulating plate, a shaft passing through the plate, a

disk secured to the shaft and provided with a hub and with means engaging the plate to prevent. backward movement,IA a spring controlled gear mounted on thehub, connections intermediate' the gear and the disk, and

a segmental gear engaging the spring con-- trolled gear.

8. A pull socket comprising a` switch member, an operating lever, pivots for operatively connecting said'lever and member, and means. whereby said lever may be supported in operative relationship to said mem-y ber in a thereto. x l

.4. A pull socket comprising switch mechanism including a shaft, an operating lever, aplate provided with 4means whereby said lever may be fulcrumed thereon in a plurality of positions,

plurality of positions with respect 9o i and means for operatively connecting said lever and shaft'in any position' of said lever on said plate.

5. In a pull socket, switch mechanism comprising a shaft, means on said shaft through which it may be rotated in one dir rection, a gear loose on said shaft, said gear and rotating means being relatively movable longitudinally of said shaft into and out of operative engagement, a spring for normally holding said parts in engagement, and an operating'lever having a segmental gear to engage and turn said first named gear.

-6. InV a pull socket, switch mechanism comprising a plate, a shaft passing through said plate, -a disk mounted on said shaft for rotation therewith, an operating' device loosely mounted on said shaft, said plate and disk having a setof interengaging recesses and projections and said operating device and disk having a second set of interengaging `recesses and projections, a spring for normally holding both of said sets of recesses and projections in engagement, a lever fulcrumed on said plate at one side of said shaft, and means for operatively connecting said lever and operatlng device.

7. A pull socket comprising a pair of insulating blocks, a binding, post extending between and secured to said blocks, a base plate secured to one of said blocks, a sprin plate carriedl by said base plate, a secon s ring plate carried by the other of said b ocks, a shaft supported by said base plate and provided with means for closing the circuit between said spring plates, an insulating plate carried by said base plate, a lever fulcrumed on said insulating plate, and means for operatively connecting said'lever and shaft.

8. A pull socket comprising abase plate, switch mechanism connected with said base plate andl including a shaft, a lever operatively connected With said shaft for rotating the same, and a ulcrum for said lever carried by said base plate.

9. A pull socket comprising switch mechanism including a shaft', an insulating gear on said shaft for rotating the same, an insulating p1ate, and an operating-lever fulcrnmed on sald plate and engaging saidl gear. v

l0. `A pull socket comprising a pair of insulating blocks; a. pair 0f binding posts connecting and spacingsaid blocks, a base plate secured to one of said blocks and having a pair of arms, switch mechanism including a shaft'supported by said arms, a lever for 0perating said shaft,` and a fulcrum for said lever carried by said base plate.

In testimon whereof I affix my signature in presence o two witnesses.

. HARVEY HUBBELI...

Witnesses:

' ARTHUR W.CALVER, S. W. ATHERTON.