US900006A - Push-button. - Google Patents

Description

C. W. WACHTEL.

PUSH BUTTON. APPLICATION FILED Nov. 231907.

'Patented sept.29,190s.

INV TOH UNITED STATES "PATENrorricn eCH-ARLES W. WACHTlILy, OF JAMAICA,v NEW "ital-900,006;` specification of4 T0: Yfill when. #may blowen:

, yBe itlgnow'n'thatfl,CHRLEsW. WAUH'TEL, a v y citizen of f the. United ,States, residing at Jama1ca,.jcounty of Queens, State of New Y 'ofrk, haveinventedce'rtain .new and useful ,rolvementsin.Pushduttona of whichthe i fol owing' is Aa specifica-tion, reference being had therein lto the accompanying., drawings, inlwhich-Y 'y l Figure 1 is a side'elevation of the push button;l Fig.` 2 a horizont-al sectional' view on the line Vof '12,1 Fig; 3a, lan 'view of tl`ie .bas'el piece; Fig. 4 a vertica transverse sectional view of the push button; Y and Fig. 5

ing vthe contacts.;

a similar view of the supporting plate carry- -piece of similar material. These jcontacts are very unsatisfactoiy for. the reason that the slightest accumulation offdustand dirt between the two pieces of metal interrupts the 'current and makes an incom lete circuit. Another objection is that the at pieces of metal soon lose their resilience and become useless, particularly if they are exposed to changing atmos heric conditions.

Referring to tlie various parts byl numerals, 1 designatesa base plate having the upstanding annularflange 2 and an inward extending annular flange 8. Fitting within ,the upstanding flange and resting on the flange 3 is a supporting plate 4 of hard fiber or other insulating material. The flange 3 'is provided with alug 5 which enters an opening in the plate 4 to prevent the rotation of the plate, as is common in this'class of device.

Secured to `the plate'4 are two contacts 6 leach of which consists -of -a screw having a head and a shank 8 which is threaded through the plate.: The screws are laced a suitable distance apart and their heat s cons/titute thecontact points. On the Shanks S are secured binding nuts 9 which not only serve to secure the circuit Wires in place, but als4 serve to securely hold thescrews to thej ApplicatiodledvNovemberg, :1907. Serial CNIo. 403,440;

insulating plate. Pivoted in a rslotin the 1 l' riferi-nunon,

Letters Patent.

vplate 4 -is a 'said arm be 4 away from the plate by a spring 1'1 whi'chis confined between the arm; and the plate.

The contact-'arm is provided atitsfree end" With acontact-head 12 which is V-shaped in transverse section and is adapted to fit between the screw heads 7, the point of the con- `tact-head being between the heads and the lnclilned `sides 13 thereof engaging the screw eac s.

r VPatiented Sept. 291908. p

iovable contact-armor lever 10, I ig normally pressed'outward or.

It will be readily seen that the contact head. i

in striking down between -the ,screw has .al wiping contact with said heads so that ythe points of contact will be at all times bright Vand clean and free from dust and dirt. The

contact arm vis pivoted in such manner that it will have asligh't lateral movem/ent'onf its pivot so that the contact head'will, unless it is pressed down very carefully between' the two screw'heads, contact with one of the screw.

heads before engaging the other. lThis-will give a long sliding contact between the 'two parts, insuring brlght', clean contact su rfaces.

The contactl arm and head are substantial-V jin form so thatjthey can -be securely pivoted in the plate and` cannot be'linjuned in;y any1.:

way' by weather. y v I By providing the clamping screws, and arrangingthem to serve as a means for binding the circuit wiresin place as well as the contact members, the device is very simple of manufacture and is very durable so that it will last'in'definitely.' l i The inclosing cap 14 is provided with slots 15 having the outwardly lnclined surface 16. Theflange 2 of. the base plate is provided 'with pins or lugs 17 which are adapted to enter the slots 15 and to engage the cam surface 16 whereby, upon lthe partial rotation of the cap 14, it will be securely clamped to the basel By this means I..avoid the use of.

plate.. threaded connections between the fiange 3 and the cap. The .push button 18 is held ioo inplace by the cap its inner side resting upon l.

button ;y one .that can belreadily asseni led. Having thus ,described my invention, what Iclnin'i as new and A i desire to secure by Letters Patent, is:-

1. -i push button comprising a pluteof insulating material, two contact points :1r-

ranged thereon, means for connecting circuit 52o Wires'to said screws, a Contact lever pivoted on said plate, and provided with an angular 'Y from the screw heads.

wires to said oints, and a Contact lever? tact points carried bythe plate, s aid contact 5 lever be1,ng normally held away from the contact point-s.A

32.51A push button comprising an linsulating pla-te a` air of" screws threaded through said plate," binding nuts threaded on said: screws andserving to connect the circuit wires there- 1t0', 'the heads-of lsaid screws forming contact v p oint's, a ivoted contact. lever formedwith-a contact ead adapted to strike between the two. Contact 'points and to engage them, and means Jfor normally holding the contact lever 'away from said Contact' points.

.3. A push butt-on comprising a plate of insulation, a pair of screws connected. thereto, the 'heads of said screws forming contact points, lmeans for connecting the circuit head adapted to strikebetween the heads of the screws, and to, engage the same, and meansfor normally'holding said lever away 4. 'A push button comprising-an insulating plate, a pair of vscrews threaded through said l 4pjlateand providedwith headsforiing con- 13o' screws, a prvoted contact lever carried by.

taetV point-s, "binding nuts. threaded on said said-plate' and formedwith a transverse contact ead at" its free end, said head being f V-shaped in cross-section, the lever being:y so

garranged that the Contact head will strike A' '-between the two screw heads and engage the same, and a spring for normally holdinor the Contact head away from the screw'heat s.

5. A push button comprising a base late having anupstanding ila-nwe, a plate of msulat-ion inclosed within said flange, a pair of screws carried by said plate of insulation, thel heads of t-hescrews forming contact point-s, .,1-

a pivoted lever carried by the plate of insulation and provided with a. transverse V- shaped Contact head-adapted to strike between the screw heads and to engage the same,` means fornornlally holding `the lever away from the screw heads, an inclosing cap provided. with slots, one wall of said slotI being cam-shaped and diametrically opposite pins extending radially from the upstanding ila-nge of the base plate and adapted to iit in the slot-s of the cap, for the purpose set forth. 6. A push button comprising a supporting plate, two contact points arranged thereon and insulated from each other, means for connecting' circuit wires to said points, a contact lever pivoted on said plate and formed with an angular head portion adapted to fit between and engage the contact points carried by the )la-te, and a spring for normally holding said contact lever away froml the contact points In testimony'whereof I hereunto aHiX my signature in the presence of two witnesses this 21stday of November 1907.

CHARLES W. WACHTEL.

Images