US1063854A - Push-button switch. - Google Patents

Description

'0. A. CLARK. PUSH BUTTON SWITCH. APPLICATION FILED NOV. 21, 1911.

1,063,854. Patented June 3. 1913.

Fig. 1- Fig. 4,-

WITNESSES INVENTOR Uh a r/es A Clark M W/M 4 W ATTORNEY rrn STAES PATNT FFIGE.

MANUFACTURING COMPANY, OF PLAINVILLE, CONNECTICUT, A GQRPQRATION OF CONNECTICUT.

PUSH-BUTTON SWITCH.

0 Specification of Letters Patent.

Patented June 3.1913.

Application filed November 2 XML 3611a] Ne 661.61%

b all whom it may concern:

Be it known that l, (humus A. Caren, a citizen of the United States, and a resident or Harttord, in the county of Hartford and State of Connecticut, have invented certain new aml'iisetul Improvements in'l'uslrliutton Switches, of which the following is a full, clear, and exact description, whereby any one skilled in the art may make and use the same.

The invention relates to electric switches and particularly to the type known as push button switches.

It relates particularly to a mechanism for securing a quick make and break between the stationary and movable contacts of the switch. r

The object of the invention is to provide a very simple and compact structure in which the operating par-ts will operate with certainty and precision.

A further object is to secure a quick make and break connection of the switch bar and stationary contacts by direct and positive action of the switch actuator.

A further object. to provide such a direct connection of the actuating bar and locking mechanism as will be controlled by a single tension s ring' arranged between the actuating her an movable contact bar.

Referring to the drawings: Figure 1 is a plan view of the switch mechanism mounted in a receptacle with the cover removed. Fig. 2 is a sectional view through the receptacle showing the parts in vertical position. Fig. 3 is a cross-sectional view through the receptacle of Fig. 1, illustrating the parts in end view. Fig. 4 illuetrates the various parts of the switch mechanism unassembled and in perspective view.

Referring to the drawings the numeral 1 denotes a receptacle of insulating material provided with the ordinary cover 2 through which project the push buttons 3, 4 of an actuator her 5. These parts are all formed substantially the same as those of any well known type of push button switch. The receptacle is provided with stationary" contacts 6, 7, which cooperate with a switch bar 8, through which the circuit is made or broken. The circuit wires are connected with binding posts 9, 10. These binding posts have a main supporting member '11, and secured thereto are flexible spring contact jaws 12. They are held in place by a 'set screw 13 engaging thefoot 14 of the standard. A binding screw 15 passes through the upper end of the standard which is bent at substantially right a igles to the main post section and extends down between the spring arms 12.

Opcratively arranged in the and suitably secured therein is a supporting; frame member 16 having : t'oot portions 17, 18, by which within the receptacle and provided at its upper surface with a cutaway portion 19 providing ShOuldcrs 20, it, between which is the tonguednemher 22 of the actuator bar 5 and the tongue-member Q3 of the carrier 24, which bears the contact bar 8. slot :55

is termed vertically in the supporting plate l6 and in conjunction with an iu-turucd log 26 forms a supper-thug guide for a stop and releasing member 2?. The contact plutc is secured to the carrier 3i by screws or rivets 28 and is thoroughly insulatcd therefrom by bushings and washers 2& Ill). The carrier has a stud or shaft 31 which is concentric with the tongue members 22, :23 and is also provided with a stop member 32 adapted to he engaged by and disengaged from the stop member 33 of the stop and releasing member 27. The carrier 24, with its switch blade 8 is mounted on one Supporting lateltl with a stud or shaft 31, projecting tlirough a perforation 34, so that the stop member 39 is swung along one face of the supporting plate 16. and according to the position of the parts rests at one side or the other of the slotted opening 25. The

receptacle.

it may be securely fastened side of the actuator 5 has secured to it a pinion 35 which has a sleeve 36 forming an extended bearing for the actuator as well as a spring barrel about which is wound the tcuaior spring 37. This spring, has its oppositiends 38, 39, up-turued to engage the two ton uies 92. 23, on their opposite sides. The aim or shaft 31 passes through the center of 'iltt bushing 86 upon which the latter as well ad the actuator plate 5 have their hearing. The stop plate 27 has one edge 27 straight and rests against the guide 26. while the stud :33 projects through the slot 25 to hold or release the lug 32 during the operation of the parts. The plate 27 is also provided with a rack l0, which engages the pinion 35.

With the parts assembled as shown in Figs. 1 and 2, the operation is as follows: The stop 32 of the plate 24 isheld a ainst rotation by the lug 33 of the plate 2%. If new, the button .4 is depressed, the actuator v the spring 37 considerable tension will e upon the carrier 24. will. e rapidl rotated der 21. This movement wi instantly break is desired to restore the connections at the and the I and, through the pinion 35 secured thereto, lifts the stop plate 27. .The lug held, with the contact plate 8 in position to spring 3 arrlves at or near to the lower-limit of debythe spring; .It will be seen, by reference I carrier plate 24 and the supporting plate I6 projectingfend of the stop lug 33 to move heand has its tongue 22. under-lying ut contongue 23, a depression of the button being tq slightly over-tension the spring 37. As se son as the pressure upon the button is released, the s'top lug 33 will move slightly and'engage the opposite'face of the lug 32 from'that which-1t just previously engaged.

stop 33always holds the switch. parts in tion which'it'is intendedto' occup Furthermore, the :direct connection 0 pinion and rack for operating the stop "ves a posi tive movement controlled byte" rotation lepton otthie patent may.,-be-obtained for five centaea'cli, byaddreaaing the Commissioner er. Patents; 1 V

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will rotate the pinion 35 and depress the stop plate 27 through its rack connection. During this movement, the tongue 22. will move away from the tongue 23 and throu h placed upon the carrier 24 and its switch blade. At or near the lower limit of depression of the button 4, the stop-lug 33 will pass below the stop 32 releasin the same. Thereuntil its tongue 23 abuts a ainst t e shoulthe connection between the contact bar 8 and stationary contacts 6 and "7. When it contacts 6 and 7 the button 3 is depressed,

arts rest'ored'to the position indicated in ig. 2. This rocks the actuator'bar I 33 of this plate ishowever in contact with the opposite face of the stop 32 from-that engaged therebywhenthe partsarein the ositlon shown in Fig. 2, and the plate 24: is orcibly maintain open the circuit, until the tongue 22 of the actuator bar has moved sufficiently far away fromthe tongue 33 to put the- 37 undertension. When the button pression the stop lug 33 will'have passed beyond the stop 32 and behind thev late 24:, releasing the same and permitting-t e arts to be carried to ,theposition shown in ig. 2

to Figs. 3 an that the stop lug 32 is curved inward or toward. the plate 16 so that the are spaced apart-suficiently to permit the tween these plates, whiieabov' the inturned edge of the stop lug 32. As he plate 5 is mounted on the opposite side of thesupporting late lti item the carrier late 24 centrically arranged with reference to the pressed, carries the tongue 22 farenough From the above, it is apparent that the locked position with the tongues 22, 23, rest ing'againstone or the other of the shoulders 20, 21. Therefore, there 'is no liability of the switch bar being jarredfloutof the posi-.'

v noeaeea .01 the actuator bar 5 and as the latter'is contact bar always positions the actuator and consequently positions the stop plate and its stop 33. As thethronl of the tongues 22 and 23 is locked by the stops 20 and 21, there is a definite locked position of the parts at each. end of the throw and the instant the pressure upon the push-button is removed, U

Obviously, the exact details of the construction might be varied to a great extent without departing from the spirit or intent of the invention which is characterized by a positive locking and releasing member di-v rectly actuated from the actuator bar and controlled as to its position by the position of said bar and the action spring. 7

What I claim as my invention and desire to secure by Letters Patent is:

of the tension 1. A push button switch embodying a supporting plate with a slot and a lug constituting a guide for a stop and releasing member appnrtenant thereto, amoscillatory' carrier for the movable contacts, a reciprocatory'stop and releasing member geared with and positively operated from the push buttons, and arranged to bear againstthe aforesaid lug and also having a projecting part thagenters the aforesaid slot, whereby it is guide in its movementsg ja'nd" a tension,

device acting upon the said" oscillatem, .carrler.

2. A two button snap switch embodying an actuator bar with whlch the push buttons are connected, a pinion rotated-thereby, an oscillatory carrier for the movable contacts, a reciprocatory stop and releasing member controlling the movements of the said car- 'rier, formed with a rack with which the said inion engages and by which it is move and a tension device acting upon; the I said oscillatory carrier. v 3. A two butt-on snapswitch embodying a' reciprocating plate bearing a sto and havinga toothed rack upon one e ge and a pinion in mesh therewith, said rack and pinion being ji'annected with the actuator bar. oftheswitch'. lj I CHARLES CLARK. Witnesses: v i I FRANK 1. West, J". B. BULL.

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