US742508A - Push-button switch. - Google Patents

Description

No. 742,508. PATENTED OCT. 27, 1903.

' A. B. SIMPSON.

PUSH BUTTON SWITCH.

APPLIGATION FILED JULY 9, 1903 N0 MODEL.

W/ TNESSES: IN Vf/V TOF? mn/Q ALEXANDER 5. SIMPSON HIS ATTORNEYS.

TN: ucnms vETERsGDIvPNQYCS-LWHQ. WASHINGTON, n. cy

NITED STATES ALEXANDER B. SIMPSON, OF NEW YORK,

Patented October 27, 19036 FFICE.

PATENT N.Y., ASSIGNOR TO H. KRANTZ RATION on NEW YORK.

PUSH-BUTTON SWITCH.

SPECIFICATION forming part of Letters Patent No. 742,508, dated October 2'7,

Application filed July 9, 1903. Serial No. 164,817. (No model.)

T at whom it may concern:

Beit known thatI, ALEXANDER B. SIMPsoN, a citizen of the United States of America, and a resident of the borough of Manhattan, city of New York, in the county and State of New York, have invented an Improved Push-Button Switch, of which the following is a specification.

This invention relates to a push-button switch, and has for its object to improve, simplify, and cheapen the construction of this type of switch.

In the accompanying drawings, Figure l is a side elevation of my improved operating mechanism, the receptacle being shown in section. Fig. 2 is an edge or plan of the mechanism removed from the receptacle. Fig. 3 is a section on line 3 3, Fig. 2. Fig. 4 is a section on line 4 4:, Fig. 1, when the operating parts are in the position of Fig. 6. Figs. 5, 6, and 7 show the moving parts in position of contact, mid-position, and off position, respectively. Fig. 8 is a perspective view of the fixed plate which carries the operating parts. Fig. 9 is a perspective view of the plate which delivers ahammer-like stroke to move the switch, and Fig. is a perspective view of one of the contact-blades and the at- -cached plate which is struck the hammerblow.

P is the receptacle, of porcelain or the like, containing fixed contact-clips c c. A plate 1 is secured across the top of the receptacle and carries a plate 3 to support the moving parts of the switch. The plate 3 carries pivoted contact-blades B B, adapted to engage with the clips 0 c. The plate 3 has a sleeve 4 fastened at one end as a bearing for the shaft 5, carrying the contact-blades, Figs. 2 and 4:. This shaft 5 passes through a slot 6 in a plate 7, which has a lip 8 at one end and a stud 9 at its other end, the stud 9 passing through a slot 10 in the fixed plate 3. A spring 11, connected at one end to the stud 9 and at the other to the sleeve 4, tends to always force the stud into the lower ends of the slot 10, and thus to move the plate 7 to the right, Figs. 1, 2, 3, and 4. The shaft 5 carries a plate 12 and an anvil-plate 13, one'at each end and to which the blades B B are made fast, insulation 14=being interposed, Figs. 4and 10. The anvil 13 projects above one of the blades. B, and its upper end is preferably at an angle with said blade, so that one corner 15 is higher than the other, as shown in Figs. 5, 6, 7, and 10. A cross-arm 16 is pivoted on a stud 17 to the plate 3 and each end connected by piv oted links 20 20 with the push-buttons b b,

which project through openings in the coverplate 1. The cross-arm 16 has two projecting lugs 18 18, adapted upon the oscillation of the cross-arm slot 10 and force the stud 9 of the slotted plate 7 up the incline of the slot from the position of Fig. 5'to the position of Fig. 6, compress= ing the spring 11, so that as the stud passes the center of the slot the stud will be forcibly and quickly pushed down into the other end of the slot, Fig. 7, causing the lip 8 to strike the corner 15 of the plate 13 a hammerblow and move the shaft 5 and blades B 13 away from the clips 0 c to breakthe circuit, as shown in Fig. 7, or upon the operation of the oscillating cross-arm 16 in the other direction to similarly cause the blades B B to make connection again with the clips 0 c, in which position the lip 8 of the blade 7 will occupy its innermost position on an angle which limits the motion of the blades B B, and thus acts as a stop to make circuit always in proper relation to the clips 0 c.

I claim as my invention- 1. Aswitch, having a contact-blade in combination with operating mechanism, comprising a shaft for the blade, an anvil adapted to turn with the blade, a slotted plate, a plate having a groove in which the slotted plate is guided, a stud on said plate passing through the slot in the slotted plate, a spring tending to move the slotted plate against the anvil, means for moving the slotted plate away from said anvil, means to change its angle, and means to release the blade from said firstnamed means to cause it to strike the anvil, substantially as described. a

2. A switch having a contact-blade and an anvil, turning together, in combination with a plate 3, a groove and a bearing in said plate, a shaft carrying the contact-blade and anvil, a slotted plate slidable on the shaft, a stud at to travel into the path of the one end of the slotted plate moving in the groove of the plate 3, a spring tending to move the slotted plate toward the anvil and means for moving the stud in the guide, substantially as described.

3. A switch having a plate 3, provided with a bearing and a groove, and a shaft in the bearing carryinga contact-blade and an anvil, in combination with a slotted plate having a lip and a stud, the slot fitting the shaft, and the stud fitting the groove, a springv between the stud and shaft, and means for moving the stud along said groove, substantially as described.

4:. A switch having a plate 3 with a bearing

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