US757203A - Push-button. - Google Patents

Description

N0 MODEL.

PATENTED APR. 12, 1904. C. J. KLEIN.

PUSH BUTTON.

APPLIOATION FILED NOV.14, 1902. RENEWED IIlB. 23, 1904.

Pfg. 6.24

l UNITED STATEs Patented April 12, 1904.

PATENT OFFICE.

CHARLES VJ. KLEIN, or NEW YORK, N. Y.

`srneirmerr10N fermingpart ef Letters PeteneNe.'757,2os, dateaaprn 12, 1904.

Applieeaen ined November i4, 190.2.V Renewed rebreerys's, 19,04. serial 110,194,882.. (Ne medew Improvements iILPush-Buttons, of 'which the following is a specification.

-This invention relates to electrical push-,

buttons; and it` has forl its object tolprovide an improved device of this class, which Will be superior in point of simplicity and inexpensiveness in construction and general efficiency.

and/durability..- A i Inl carrying out my invention I provide a push-button in which the circuit-'wires are firmly held in position for direct contact with the circuit-closing element, the. necessity of binding-posts and independent contact-terminals being thus obviated.

In the dravvings yvhichform part of this spelication, and in .which corresponding 'parts in the several figures are denoted by the same reference characters, Figure 1. is a detail longitudinal sectional view of a push-but--' ton embodying the invention. Fig. 2 is -Ia'detail transverse sectional View taken ,upon the line y y, Fig. 1, and looking in thedirection of the appended arrow'. Fig. 3V is a topplan view of the construction illustrated in Fig. 1;-

Fig. 4 a detail transverse sectional view taken upon the line ,'Fig.f1, and looking in the direction of the appended arrow. Fig.

lmodified form of construction.

5 is a side elevation of a modified 'form of a detail of the construction. Fig. 6 is a detail lon-- gitudinal sectional view of'a modified form of construction. Fig. 7` is a similar view of a still further modified form of constructiom y and Fig. 8 is' a similar view of a still is provided at opposite sides with 'transverse openings 7, through which the circuit-wires 3 3 are passed and extended'to' span the interior of the shell 6 in parallel spaced relation. The Walls ofthe shel16 are exteriorly longitudinally grooved, as at 8,`at one end of the same to receive the circuit-wires 3 3, which latter are bent, as at 9, into position to lie within 'said grooves 8 flush' with the outer surface ofthe shell 6. The securing means 4' consist of an exteriorly-threaded plug 10, which isscrewed With the 'circuit-.Wires 3 3, and thus maintains the same positively in position for electrical into an end of the shell 6 into close engagement engagement bythe circuit-,closing means- 5.

The circuit-.closing means 5 consist in the preferred form of construction of ,a'nger-piece 11', which carries a metallic contact-head 12 by means of a stem 13, the contact-head 12 being normally maintain-ed out of engagement with -the` circuit.- wires 3- 3 by suitable tensional means 14, consisting of' a spring coiled-around the stem13'between the finger-piece 11 and a suitable step 15 for said spring. The step 15 is provided With an axial opening 16, through which the stem l1,3 passes with a free slidable relatiomand said step 15 is embodied in a cy- 'lindrical exteriorly-threaded shell 17,'which is screwed into the end of the shell 6 opposite that which receives the plug y10, said shell 17 beinglprovided with. an enlarged cup-shaped outer end portion 18, in which is lslidably mounted the finger-piece 11 of the circuiteclosingmeans 5. Said enlarged outer end portion of the shell 17 embodies an4 annularabvut-` ment which limits the inward play of the iinand the circuit-wires 3 3, properly bared for.

electrical contact, are firmly held in position between the same. A securing means 4 and the partseo'f the circuit- The body member 2 and i closing means 5, `irrespective of the con-tacthead 12, stem 13, and spring 14, are ot insulatingmaterial. Y

- lsA cated with the'circuit-closing means 33 in a,

In place of the openings 7 in the shell 6 I may, as illustrated in Fig. 5, providetransverse oblique lateral openings 19, through which the circuit-wires 3 3 may be passed laterally into the shell 6 instead of longitudinally, as above described.

In the modified form of construction illustrated in Fig. 6 the shell 6 is provided with a `flaring base-flange at the end portion of tliel same which receives the plug 10, which basefiange is adapted to be supported upon the base or inner Wall 21a of' a box or casing 21 by suitable securing means 22. The box or casing V21 'is designed to be installed within a Wall o'r similar structure 21"and the outer or open end portion 21c ofthe box or casing 21, through Which the push-button device is inserted, is closed' by an annular c ap 23, Which surrounds the enlarged cup-shaped outer end portion 18 of the shell 17 and isl maintained in'eHgagement with the wall 21b by means of an annular exterior flange 24, formed 'upon said outer end portion 18 of the shell 17, when said shell 17 is screwed into theisliell 6. This form of construction adapts tlie'improvements to inclosed installation.

In themodifie'df form of construction'illustrated in Fig. 7 Ithe generaliconstruction is the lsame as -that previously described, with the exception that the securing .means 25 for the circuit-Wires 3 3 are exterior'of the body member 2 and consist of a lock-nut 26, threaded e'xteri'orly` upon the Ashell 6- of the body member 2 and provided with an insulating face portion vorwasher 27, adapted Ato be` screwed down on the circuit-wires 3 3 and to liirmly bind the same in position against an annular exterior base-ange 28, formed upon the shell 6, the adjacent. end portion of said shell 6, or that 4opposite the, circuit-closing means 5, being closed, as at 29, to firmly support the circuit-Wires 3. 3 lwhen the same Vare engaged bythe contact-head 12.

In theconstructio'ns shown in Figs..6 and 7 the shells .6 and 17 and parts of the securing means 4 and 25, respectively, are properly formed. with respectgto `insulation of the circuit-Wires 3 3v and the contact-head12.

v In the modified form of construction illustrated in Fig. 8 the body member 30 is assomanner slightly dissimilar to that above de- 1 ed at one'end,` as at 32, to receive the securexteriorly threaded plug 10.

scribed, saidj body member consisting ofa Ishell 31,'of hard rubber,porcelain, or other insulating materiaLWliich is interiorly thread- .ing means-4 for the circuit-Wires, saidsecuring meanslconsisting oi' the above-described The circuitwires 3 3 are ied through the shell 31 through suitable openings 8 in parallel relation. The circuit-closing means 33 embody a spun metallic shell 34, -which' is crimped at 'its inner or j Iower end, as at 35, i nto exterior engagement Wwith the shell 31. Within the shell 31 is formed atransverse step 36 for the coilspring 14, which surrounds the stem 13 of the contact-head 12, which latter is arranged beneath or inward of the step 36, the stem 13 passing slidably through a suitable opening in said step 36. The stein 13 is provided at its upper or outer end'with the usual lingerpiece 11.

The operation and advantages of my irnprovements inv push-buttons will be readily understood. Referring to Figs; 1 and', inclusive, thecircuit-wires 3 34 are in assembling lead through openings 7 in the shell v6 and held firmly in position by the plug 10. Vtrhen the finger-piece 11 is depressedagainst the spring 14, the contact-head'12 engages the circuit- Wires 3 3 and causes an electrical circuit directly through the same. Tli'euse of separate and distinct contact-pieces,terminals, or binding-posts for the circuit-wires is thus obviated, and the body member 2 of the device, together with the securing means 4 and the circuit-closing means 5, constitute a complete, simple, and thoroughly Vefiicient device in which the `operations ot'wiring and electrical connection and disconnection ai'e extremely simple.

The operation -and method 'of use of the IOO VThe operation and method of use of thel modified form of construction illustrated in Fig. 8 are. substantially identical With-'those above described;'but said form of construc-I` tion is superior in -pointof inexpensivenessV in manufacture and convenience in assembling` parts. v Having thus described my invention, I claim and desire4 to secure by Letters Patent- 1. Animproved device of the class described, comprisinga tubular body member provided at opposite sides with transverse openings, adapted to receive circuit-Wires extending through sa`1d body member, securing means fitting within one end of said body member and engaging with said circuit-Wires,

and circuit-closing means fitting within vthe other end of said body member and arranged' for direct engagement With said circuit-Wires to close an electrical circuit through the sameg IIO 2. An improved device 'of the class de` scribed, comprising a tubular body memberl provided at opposite sides with transverse openings adapted to receive circuit-Wires extending through said body member, said body member being closed at one end and provided at the other end with circuit-closing means arranged for direct engagement with said cir- `formed tov receive circuit-wires transversely and interlorly, sind body member belng pro- Witnesses:

cuit-Wires to close an electrical circuit through cuit-wires to close an electrical circuit through the sume.- the same. 1o

3. An improved device of the class de- In testimony Whereoflhave signed my name scribed, comprising a tubular body member in the presence of the subscribing Witnesses.

- CHARLES J. KLEN.

vided at one end with circuit-closing means R. T. MCGUSTY, arranged for direct engagement with send c1r- S. SCHLESENGER.

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