USRE15700E - of chicago - Google Patents

Description

orf; 16, 1923..

w. KAlsLlNG IGNITION SWITCH original Fiied April 4, 19;;8 2 sheets-sheet 1 uI-u WMI l IIIIIIMl im 0i-16,1923. y R.f15,7'o`o i W. KAISLING IGNITION- SWITCH original Filed ApriL @[1918Y 2 sheets-sheet 2 Reissuecl Oct. v16, 19.23; .i

i .Ref 15,700*I UNITI-:o STATES* .PATENT 91:1:Ich,,f1

` WILLIAM KAISIQING, or CHICAGO,` ILLINOIS, AssIGNon 'ro'xEnLoGG'sWrrcxIBoAan AND `SUPPLY COMPANY, or CHICAGO, ILLINoIs, A ooRroRATIoN or ILLINOIS". l

lIGNITION syvI'rCrI-*7 e Y OriginalI No. 1,395,679, -dated November l1, 1921, `SexiallNo. 226,622, l-ed April 4, 1918i.. Application for v reissue inea Marchyrz, 1922. serial No. 544,642. H f* To all whom it may concern.'

Be it kno-wn that I, WILLIAM Kaisnnve,v a i .State of Illinois, have invented certain'new and useful Improvements. `in Ignition Switches,of which the following is a specication'. Q

. My invention relates to electrical switches in generalgand has to do more particularlyA with switches for controlling a plurality ofy circuits. The present embodiment of my invention is constructed more particularlyvfor use in connection with ignition or Slight cir-` cuits for automobiles or the like. An object of my invention is the provision of alswitch of the class described which embodies desirable features and advantages all inv afsimple, eiiicient and economical manner; and-to the accomplishment of this object ,i and .such` others as may hereinafter appear, the invention consists in the novel details of construction, parts and combination. of partshere after described, and particularly pointed out in the appended claims. t

For a better understanding of my invention,`reference maybel had to `the accom"- panying drawings, in which 'like reference characters in the different views denote like parts, and in which: A 3Fig. lis.` a face view ofthe switch of my invention; C w y Fig. 2 is a right side view 0f 1 ;j

Fig.l 3 is a rearl view of Fig.` 1; i

Fig. 4 is an interior face view of them'cch! with the casing and cap removed;

Fig. 5 is a left side view of Fig. 4;

Fig. 6 is a right side view of Fig. 4;

Fig. 7 is a bottom view of Fig, 4 omitting the apparatus on the backfof the mounting plate;` W Fig. S is a view of the interior mechanism with parts `removed to more clearly show the locking arrangement, the switching lever being at normal and unlocked. l

Fig. 9 is aj view similarto Fig.. 8 showing the locking mechanism in ope'rated position; i

Fig10 is a sectionalview along the line 10-'10 of Fig. 4; v

Fig. 11 is a sectional view of the lockingl device; .1.

Figs. 12', 13 and 14 illustrate the-normal and two actuated positions'of the switch unit; and f "-'Fig 15" is a Apartialsectional view-shows :ing the method of inserting the contact sprnings into themountingplate. f

erring now in general to `m `v "invention i as'illustrated, it comprises la switchingunit Shaving a normal position A -and two opmi erating' positions B' and Cf'When the switch is in position B, a single'set of spark plugs are placed in operative relation with .the ignition apparatus, and when in posi` .tion C two or a double set of spark plugs ,aire f placed in operative'relation withthe ignition apparatus. While I have described the switch in .connectionwith a'certain arrangement. I wish it understood that Indo not wish to be limited "to this particular arrangement, as'the switch of my invention maybe adapt` ed for many other useswithout departing `from the spirit of the same. L

I have not shown my device ,connectedv up Iwith any particular circuit arrangement7 but it is, of course, apparent that it-may'be used iny connectionwith various circuit arrange'y ments vandthat the device be used' as jar switch `for controlling lighting lcircuits as welles for controlling igntioncircuits, z The particulars'witch showninthe drawings was arranged tobe used in connection with a vsingle anda double ignition circuitysojI lhave shown the'arrangement of the contact springs andcontact maker accordingly.

I also 'provide a locking mechanism L which vconsists preferably of a standard tumble; lock which' controls a slidinglole ingplate which is adapted to lock theswitch in its normal positiony only'. .'If the switch is in either of its operative positions'iB or C,

vand the operator attempts to operate the lock, heis at once made aware of the fact that the switch is in one of its operative positions due to the fact that the key can only be vturned part way. The switch must be moved to its normal or inoperative position A before the lock canbe operated t0 lock the switch 'andthe key'withdrawn.

Referring now more in detailto myinvention as` illustrated, it'comprises ypreferably a mounting base or plate 1 made of any suitable insulating" materlal,A such as bakelite col hexagonally shaped orifice 5 formed in the plate 1, to prevent the stud 3 from being y rotated in the opening 2. The threaded porfrom the plate 18.

tion 6 of the stud 3 receives a nut 7, which nut 7 when screwed in place holds the stud 3 in place in t-hemountingp-late- 1.

The switching unit S is constructed of two parts, namely,`the supporting stud 8. and a cylinder 9. The cylinder 9 is preferably molded in; the form illustrated in Figs-4 to 10, and is made of any suitable insulating material that can be properel-y shaped. or molded, such as bakelite orthe like. "A conducting plate 10 is provided, and is. preferably setin the cylinder 9, during themolding of. the same, vthe said plateV 10 having turned over portions 11 and 12,turned down at right angles to the said plate 10 to form conducting segments which cooperate with the contact springs 13, 14 and 15. The

cylinder 9 is provided `with a central orifice 16 of a size to just receive the supporting stud 8, which stud 8 is providedw'ith anorifice 17, into which the stud3 "fits, thus rotatably supporting the unit S 'as a whole upon the stud 3. The cylinder 9 is `forced onto the stud 8, soa's to form a forced fit. A plate 18 is staked. to thefstud 8, and is provided with a pin 19,-which pin is suitably staked to the'plate 18, the said pin 19 eX- tending into` asuitable opening 2O in the cylinder 9. f The pin 19 may be molded in the cylinder 9 and then riveted over when the plate 18. isput in place and' staked vtothe stud 8. -An insulating washer 21 is placed between theA plate 18 and the cylinder 9 to insulate the portions 11 and 12 of the plate 10 The pin 19 whichfextends into;v the cylinder 9Mlocates` thesaid cylinder 9 in relation to theplate 18, and also forms a connection between the said cylinder 9 and stud 8, so that when the unit S is moved to its several different positions, the cylinder 9 is rotated therewith. The plate 18 is operatively associated with the locking mechanism L, as will be more fully hereinafter described. The springs 13,14

and 15 are all similar in shapev and are all` secured to the mounting plate 1 in a similar manner so that by describing the method of securing thespring 13 a further descrip-` tion of the others will be unnecessary.V The spring 13 is provided with a tongue r22 which is forced-into a. suitableopening 23 in the plate l', the-said opening 23 being slighty smaller than the tongue 22, so as to produce a forced t. The springf13 isprovided with.

`base when it is cast.

lsprings 13, 14 rand 15 being when the said springs face of the plate 1 when in position, and

with shoulders 25 which extend slightly beyond the bottom surface of the plate 1. The shoulders 25 are staked to hold the spring 13 in position and to prevent it from being withdrawn from theplate l. The springs 13,14 and 15 may beformed right in the The free end of the spring-'13 is rounded to form a contact portion26 for engagement with the conduct-ing portions 11k and-12 of the plate 10. The spring v13 normally rests in the concave portion 27 of the annular surface 28l of the cylinder 9.

- To produce a snap action when the switching' unit S is moved to its different positions, the surface 28 of the cylinder is corrugated or formed into concave portions 27 and the conducting segments 11 and 12 are also corrugated or provided with concave portions so'that when the.y switching unit S is in positions A, B and C, as illustrated in Figs. 12, 13 and 14, the free ends of the springs 13, 14 and 15 rest in these concave portions 27 to hold the switch S in position to prevent it from `accidentally turning. Now, when the switching unit -S is moved from one position to another, the contacting ends 26 of the springs 13, 14 and 15 leave the furrows 27 and ridefupon the ridges 29, and due to the under tension, leave the vridges 29 theyftendV to turn the switching unit S, thus producing a snap action for the said unit S. and'at' the same time the springs 13, 14 and 15 hold the said switching unit S in its new position. have their respective tongues 22 'protruding through the rear portion of plate 1`to form connecting terminals T. A clamping member 30 is provided for each` of the springs 13, 14 and 15, and' provides means for securing electrical conductors to the said springs. A screw 31 is provided with a lock washer 32 for securely holding the electrical conductors between the said switch spring tongues 22 and the contacting surfaces of the clamping members 30.

When-the switching unit S is in its normal positionvA, the circuit is open at the contact springs 14 and 15, the said springs resting at this time upon insulated portions of the surface28 of the cylinder 9, and contact springs 13 engaging segment 11. When the switching unit S is moved to position B, the contact spring 14 engages the segment 12, and owing to the fact that contact spring 13 is already engaging segment 11, as clearly illustrated in Fig. 12, a circuit is closed from one of these springs to the other through the plate 10. If the switching unit S is moved to its position C, then contact spring 13 remains in contact with segment 11, and contact spring 14 also remains in en- The springs 13, 14 and 15 gage'ment with segment 12, but contact spring 15 vnow engages segment 11, thus connecting all three .springs through said plate`10. f

A locking4 arrangement whereby ythe switch unit maybe locked against movement is provided, and includes a wellknown tumbler lock 35,- which is set into a recess 36 formedin thevplate 1, said lock being operatively associated with a slidable together locking plate 37. The barrel 38 of the lock isprovided with a pair Vot downwardly extending lugs 39 and 40 which tit into a suitably formed recessed opening 36 which is provided with two notches 41 and 42, disposed in the said recess 36, to receive the two downwardly. extending lugs 39 and 40 of the lock 35. Thenotches 41 and 42 are a; trifle smaller than the size of the lugs 39 and 40 ot' the-lock 35 so that the said lugs must be forced into the notches 41 and 42 to insure a firm seat for the lock35; The

switch cover also operates `to retain the lock 35 in position, as will be more fully hereinafter explained.' The lock 35 is provided with a pin 43 which is fastened to the cylinder 44 of the lock 35 inany suitable manner so that when the key 45 is turned the pin- 43 moves with the cylinder 44. y

The locking mechanism L includes a sliding lock plate 37 set in an orifice 46 of the plate 1. An oblong opening 47 is pro-` vided in the locking plate 37, through which the stud 3 extends, to permit the plate 37 to move to the right orlett as the case maybe when the lock is turned vto lock or unlock the switch. The oblong opening47 andpin limitsthe movement ofthe said plate 37. Pins48 and 49 are `set or formed in recesses 46 of the plate 1, preferably being set in the said plate 1 during the molding of the same.

These pins 48 and 49 fit `between the bifurcated ends 50 and 51 ot the plate 37 andv .form guiding means for the plate 37 when said plate is moved to the right or left inv locking or unlocking the switch. The Iplate 37 is provided with an extension52 which hasits end 53 turned up at right'angles to the said plate and located so that it is in the path` of the pin 43 of the cylinder 44 of the lock 35or purposes to be more fully hereinafter described. The'plate 37 is provided with a lug 54, preferably formed integral therewith. the said` lug54 being struck up fromtheplate l37, and cooperating with the plate 18 `of the lunit S, as will be v more fully pointed out in. describing the voperationot' the locking mechanisnr In Fig. 8,1 have shown the locking mech' anism L and switching unit S in their normal'positions,andin Figl sliowithe locking mechanism L operated and the switching unit S locked in its normal position. VTo lock the unit S, the `key 45 is turned until the pin 43 engages the `upturned lugot the plate37. The plate 37 thenl moves to the left into .the position shown in Fig. 9. `The y plate 18 of the unit S, which is also associated with the locking mechanism, has a notch 55 cut in .theperiphery of the same, as shown in Figs. 8 and 9. When the plate 37 is movedinto locking position, the lug 54 is moved to the lett into the notch55 of the plate 18. Now, should `an attempt be kmade to move the unit S to its position B,

the shoulder 56, formed by the notch 55 `being cut in the plate 18, engages the lug 54v and prevents any movement or'y thefswitching unit S. Assuming now that the switch unit-S is in either of its positions B or C, andthe `operator attempts to lockthe switch, the key 45 can be turned only part way untilthe pin 43 engages the lug 53 of the plate 37. A turning the key 45 is halted, due to the lug 54 of the plate 37 engaging the periphery Now, any further attempt at.

58 of the plate 18,` thereby preventing the i pin 43 from moving the locking plate 37 to tions. Plate 18 is provided with an arm 60' 1s formed integrally therewith, which adapted to engage a post 61, set in the plate 1 during Athe moulding of the saine, to limit the movement of the switch unit `S in one direction. The larm 60 is adapted to engage the lug 54 to limit the movement of the switch unit S in the other or counter-clock-` wise direction. When the plate 18 is in its normal position and the locking plate 37 has i i been operated to lock the switch against actuation, thengthe arm. 6() engages the pin 61 to prevent movement of the plate 18 in a clockwise direction, and the shoulder 56 oi" the plate 18 engages thc stud 54 ci the plate 37 toilimit the movement of the plate 18 in a counter-clockwisedirection. To yieldingly hold the plate 37 in its locked or unlocked positions, I provide an arm 62 pivoted to the plate 1 by means ot the pivotpin 63.

, Notches 64 and 65 are provided in the plate 37 in which the nose 66 of the arm 62 rests. The arm 62 1s sprlng-pressed into said notches bv means of the s )ring 67 which has one end 68 inserted in a slot 69 in the arm 62. The free end 70 of the spring bears against a suitable lug 71 formed integrally with the base plate 1.

A cap 72 is providedto enclose the mech` `anism, and a top or'name plateholder `73. is

also provided. The mounting plate 1 has an annular shoulder 74 upon' which the cap 72 rests when in position. The name plate holder 73 is dished to receive the name plate 75, and a ferrule 76, which passes through suitable openings in the holder 73v and name plate 75, is spun over the name plate 75 and holder 73 to hold the two in alignment. Studs 77 and 7-8 are suitably staked to the holder, and pass through suitable openings in the cap in the plate 1. The portions 80 of the studs 77 and 78 which protrude beyond the rear of the plate 1 are threaded to receive nuts 81. Split lock washers 82 are placed between the nut 81 and the plate 1 to lock the said nut 81 in place when screwed down to hold the holder 73 and cap 7-2 securely to the plate 1. The holder 73, name plate 75, and cap 72 are provided with suitable openings 85 for the lock 35. The ferrule 76 is of a size to allow the passage of the stud 8, which stud is adapted to receive the operating lever 86. The lever 86 is held in place by means of the screw 87, which kpasses through a suitable opening in the stud 7 and has screw-threaded engagement with a tapped orifice in the lever 86, as shown in dotted lines in Fig. 1. 4The operating lever is grasped by the operator to move the unit S to its different operative positions and back to normal, the lever being shown in dotted lines in its operative positions B and C in Fig. 1.

It will be observed that the just described organization provides a desirable mounting arrangement, and also particularly in the respect of its provision of means for ailixing ornamental escutcheon plates, or it may be name plates, having different letterings to switches that mayy have been otherwise manufactured as a single lot. It employs an orilice at or in which one of the controlling elements of the switch (in the present instance the stud 8) is set. By lining the orifice with a ferrule, one end being spun over an orice in the name plate and the inwardly projecting errule end being spun over an element within (in the present instance, a4 main supporting member for the switch). A very economical and firm assembly is provided while at the same time beauty of the visible part oit the switch is conserved in that there are no exposed special fastenings attaching the ornamental or designing plate such as screws, rivets heads or the like. If the spun-over part ot the ferrule is left exi posed. all that is seen is a very neat metal ring lining theI periphery of an orifice in which one of the working elements is set, but it is-evident that it is wholly a matter of which appearance one prefers whether Athe ferrule is left visible at all or not. In the structure disclosed, or eXample it would be visible or invisible depending on the size of the hub part of the handle 86, or if the lock orifice were the one ferruled, on whether or not the lock had a peripheral lip.

I also illustrate in Figs. 1, 2 and 3 the preferred method employed for mounting. the switch as a whole to the cowl dash of an automobile. The' mounting plate 1 is provided with a circular extension 90 through which the threaded end of the stud 3 protrudes. The cowl dash 9170i the automobile has a suitable orice 92 cut in it of a sizeto receive the said casing 72. A notch 93 is cut in the periphery of the opening 92 of a size to receive a p-in 95 which is staked't'o the casing 72, the said pin 95 centering the switch in the opening 92 and also preventing the switch from turning in the said opening 92. A spring clamp 96 is provided which has a central opening of a size to receive the threaded end of the stud 3. The clamp spans the switch and is of a length so that its free ends 98 and 99 rest against the inner surface of the cowl dash 91. A nut 100 is provided which has screw-threaded engagement with the stud 3, and when the nut 100 is screwed down against the clamp 96 the said clamp is forced down against Vitsv normal tensionk into a channel 101 whichv is cut in the extension 90. AY split lock washer 102 is placed between the nut 100 and the clamp 96 to lock the nut 100 in position after the switch is secured to the cowl dash 91. The central portion of the clamp rests in the channel 101 preventing the clamp from rotating about the stud 3 due to the jar o-f-the automobile. The edge of the holder 73 is held tightly against the face of the cowl dash due to the spring clamp 96, and the switch as a whole is securely held in place in the opening 92 against rotation or displacement.

While thev invention has been described with particular reference to the details of construction, it is to be understood that it is not limited thereto, as many changes and modifications may be made therein without departing therefrom and I, therefore, do not wish to be limited to the exact structure as shown, but aim to cover al1 such changes and modifications which come within the spirit and scope of the appended claims.

What I claim as new and desire to secure by United States Letters Patent, is:

1. A device of the character described including a mounting plate, a pin secured to said plate, a contact maker provided with an orifice adapted to receive said pin, thereby rotatably supporting said Contact maker, a locking member supported by said platev for locking said contact maker against movement, a pin carried by said locking member, a second pin supported by said mounting plate, a member secured to said contact maker, and an integrally formed ear for said member adapted to cooperate with said pins to limit the movement of said Contact maker.

2. vil A'r 'device v:of the character described; in cludingwa mounting plate,=a pin secured to saidplate, a contactmaker provided VWith an lorifice vadapted to receivesaid pin to rotatably. `Support said contact maker, a locking memberfsupported by saidplate orlocking said contactmaker against movement, a pin carried byvsaidloc-king member, a vsecond pin fsupported by `saidA mounting plate, a member carried*l by l said contact `maker adapted to. `cooperate with said pins to limit the movementuof said contact maker, and a `cover-cap forholding-fsaid contact-maker in position.

tact maker sup orted byv said plate,a slid- `abletlocking Ip atevprovided with l an upbeing ,cut .awayA and adapted to receive the upturned portionv of vsaid slidableI locking plate' to prevent movement ofsaid contact maker in one direction, a pin secured to said mounting plate :and a .dependent ,arml formed integrally Withf )said circular `plate adapted toengage `-said iny toy prevent movement of said contact `ma er in the other direction.

4. .A device of'the'eharacter described in- Ycludingar a mounting plate, an oscillatory member supported fby said plate and carryq` ingaa movablecontact,1al plate attached to saidoscillatory member, a slidable'l locking plate provided with ya :locking element, a

portion offtheplate secured toy said oscillato i :member being cut Kavvayqto receive said loc ingaelementvto prevent-movement of and: la-wpinv ,secured to said mounting yplate i cooperating with the plate attach'edto said oscillator-.yV -memb`erfor preventingY said oscillatory#v member from being moved vin thezopposite -fdirectionijwhen the locking plate is iii itsopera'tiv'e `position-to lock the oscillatory member against actuation. I

including amounting plate, a pin secured to said' mounting plate, an? oscillatory membery rotatably supported by said pin, a slidable-l0cking element provided vWith bifurtory lmember and provided with: a protrudin .portion,` a study formed integrally with saldslidable locking'plate, and a limiting pin secured: `to-fvsa-id.mounting plate, said stud: and saidwlastpin cooperating with the protruding portion of said circular 'plate to limitthe movement of said oscillatory member.

6'.. A device of` `the character described including. a `mounting plate, a pin secured to v3 Azdevice voffthe lcharacter described'ini cluding a mounting plate, an oscillatory con` turned portionf,|a circular plateiconnected to said.contact maker, a A*portion ofsaid plate f actuation,` saidy circular vplate preventingsaid slldable vlocking plate' from beingactuated said a* oscillatory "member 'in one l direction,

5.-.A- device of the character described catedfendportions, a pair of pins supported` by said .mountingplate and projectinginto the Xbifurcatedend` -portions of said slidable lockingplate-to guide the movement of the r same, a circular platesecured tosaid` oscillasaid mounting fplate, an oscillatory member rotatably supported by said' pin'a-nd having a normal and anv off-normal position, a slidable locking plate lying between said mount ing plate and said oscillatory member, a locking element carried by lsaid locking plate, a. circular plate carriedby saidyoscillatory member, a portion of said circular plate being cut awa-y to receive said locking element only When'said oscillatory member is in normal position, a `stu-d secured to said mounting plate, and an extension for said circular plate adapted to cooperate With said stud and said locking` element to limit'the movement of said'oscillatory mem'- ber when the locking plate is in its unlocked position. i

7,.` A device of the character described .inv i cluding a mounting plate, an oscillatory member rotatably supported by said mountingplate and having a normal and an offnormal position', a slidable locking plate suitably sup-ported by vsaid mounting plate andi-providedwith an upturned locking ele-` ment, a circular plate secured' to said oscilla" tory member, a portion of said circular plate being cut away't'o receive said locking element when said oscillatory 'member is `in its normal position to` lock `thesame against when said oscillatory: member is in its offnormal position.

8.v A device 'fof `the 4character described including a mounting plate,`anf"oscillatory` lloo member rotatablysu'pported by said mounting plate and jhaving anormalland an ol-I normalV position, a s'lidablelocking platev suit-ably supportedby said mounting plate and provided With'an'vupturned lockingele` ment, a circular plate-securedtov saidroscil-V latoryfmember," a portion 4of said circular plate Abeingy cutf away to` receive'said `locking element]Whensaidl oscillatory member is in `its normal sposition to `lock'fthe same against actuation, said` circular; plate preventing-said slidable locking lplate from bellO plate being cut avvay'to receive said lock# ing element only When said loscillatory member 1s in normal positron, said ylocking element and circular plate cooperating when the oscillatory member is in its oft-normal position to prevent the locking of said oscillatory member, said circular plate and locking element adapted to prevent rotation of said oscillatory memberin one :direction when said oscillatory member is in its normal position, and other means tor preventing said oscillatory member from rotating inthe opposite direction when it is in its normal position.

10. A device of the character described including a mounting plate, an oscillatory member supported by said plate carrying a movable contact, a cover for said device for preventing movement ot said oscillatory member, a slidable locking plate provided withr a locking element, a circular plate attached vto said oscillatory member, a portion of said plate being cut away to receive the locking, element of saidv slidable locking plate to lock said contact maker in position against actuation in one direction, and other means for preventing .actuation of said oscillatory vmember 4and saidvcircular plate in the other direction.

I11. A switch of the character described having a cup-shaped containing. member and a flange for clamping the switch on a support, saidiiange being dished, a` front cover for the switehflitting into the dished portion of theA flange, a terrule having one end turned down peripherally about an oritice in said cover and holding .said cover in assembly position Withrespect to said member andsaid flange, amounting plate, amanually operated controlling element for `said switch at said ferruleand supported on one side of saidmounting plate, said ferrule giv-` ing access tothe interior of the switch for the operation of said element, and a clamping device for saidswitch secured on the other side of said mounting plate for cooperating with said clamping flange to secure said switch in yits mounted position.

"12. A r`switch ofthe character described having an element with an orifice and a controlling `vmembereaposed at said orifice extending-into. the switch structure, supporting member torsaid switch, a cover for the front of the switchhaving an oritice registering with said irst orifice, a ferrule eX- tending through said registering orifices and having its two ends spun down on said jelement and said cover, and a membersecured to the backot said switch for co-,operating with said element to secure said switch to said supporting member.

13. An electricalswitch for automobiles or the. like including a rotatable switch handle and contacts within the switch structure adapted to be shifted by means of said handle, a supportingl member provided with an opening for receiving said switch, an inwardly extending shaft for said handle, a

cured to the back of said switch and adapted to span the yopeningin said supporting member and to co-operate with said mounting plate to secure said switch in said supporting member. a y 1 14. An electrical switch having a movable switch part at the `front of said switch, said partextending inwardly, a cover plate having an orilice at which said part isexposed, a terrule having one end holding said plate, said ferrule having'an inwardly-extending rportion engaging .a switch element behind` said cover plate tol hold said plate in position, and means secured tothe back of said electrical switch for (zo-operating with said switch elementfto clamp, said switch ,in its mounted position. f

15.' A switch of thecharacter described including a face plate, a second plate having a iiange, and yielding means secured to said switch for, co-operating with said flange as a clamping element tosupport the switch as a whole, a terrule extending through both said plates, said ferrule having` one end turned over on said first platev and the other end turned vover within the switch to hold said first vplate on said second plate, and a manually -operableelement for the` switch within said ferrule. A w ,p

16. A switch of the character describediincluding a plate' adapted to serve as a clamping element for supporting the switch as` a whole, aj cup-shaped element -within which movable parts yofthe switch are mounted, means vfor holding said plate andcup shaped element rigidly together, a -front cover for the switch, a manually operated controlling element for saidfswitch extendingwthrough said platessaid cover, and aferrule having one end turned down on said cover and holding saidv cover in position with respect to said plates, and afmember secured-to the back `ot' said switch toreo-operating with said first plate toclamp said switch in its mounted position. i

17. A switch of the character described having a front case plate and a front clamping member for holding the switch on a sup,- port, a front cover for the switch, a ferrule supporting said cover in assembly position with respectto said plate and said member, said ferrule giving access to the interior of said switch, amovable element operated through said errule, and af member, having its ends turned up, secured to the back of said switch for co-operating with said front clamping member for yieldingly clamping said switch in its supported position.

18. A switch of the'character described including a front plate, a front cover, a ferrule supporting said cover in assembly position With respect to said plate, a movable element for said switch at said ferrule, said ferrule giving access to the interior of the switch in the operation of said element, a mounting member having an orifice for receiving said switch, and a member secured to the back of said switch and adapted to span the oriiice in said mounting member and to cooperate with said front cover to yieldingly hold said switch in said mounting member.

19. A switch of the character described having a front plate and cooperating means including a member at the back of said switch for yieldingly holding said switch on a support, a front cover for said front plate, a ferrule supporting said cover in assembly position with respect to said plate, a manually operable element for said switch located at said errule, said errule giving access to the interior of the switch.

Signed by me at Chicago, in the county of Cook and State of Illinois, this 14th day of March, 1922. a

WILLIAM KAISLING.

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