US1297348A - Electric switch. - Google Patents
Electric switch. Download PDFInfo
- Publication number
- US1297348A US1297348A US25652818A US25652818A US1297348A US 1297348 A US1297348 A US 1297348A US 25652818 A US25652818 A US 25652818A US 25652818 A US25652818 A US 25652818A US 1297348 A US1297348 A US 1297348A
- Authority
- US
- United States
- Prior art keywords
- plate
- spring
- switch
- spindle
- shaft
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
- H01H19/02—Details
- H01H19/10—Movable parts; Contacts mounted thereon
- H01H19/20—Driving mechanisms allowing angular displacement of the operating part to be effective in either direction
- H01H19/24—Driving mechanisms allowing angular displacement of the operating part to be effective in either direction acting with snap action
Definitions
- My invention relates to improvements in rotary snap electric switches and has for its object to produce a rotary snap switch in which the spindle for actuating the catch or bolt is relieved of driving strain. It further has for its object to produce a snap switch which is driven through the springhook or spring-plate with which one end of the spring directly engages, power being appliedthereto independently of the spindle.
- switches comprising a switch mechanism contained within a water and gas-tight casing for use in connection with vapor-proof -ittings and adapted for use upon vessels where it is desirable to protect the switch from moisture and in chemical and powder plants and the like, to provide a ratchet member carried by the cover and separable from the switch mechanism with the cover.
- Figure 1 is a plan View of the inclosed marine switch
- Fig. 2 is a longitudinal section of the same
- Fig. 3 is a mechanism
- Fig. 4 is a partial inner viewbff the inclosing casing
- Fig. 5 is a detail of the spring-plate or clip
- Fig. 6 is adetail of one of the ratchet members and its support
- Fig. 7 is a detail of the switch spindle
- Fi e 8 is a detail of the upper ratchet mom or shaft.
- plan view of contact actuating Fig. 9 is a holding plate for said shaft.
- 1 is a casing having a cover 2 screwed thereon, the casing having tapped holes 3'3 for conduits for conductors leading to the switch mechanism.
- 4 is the switch mechanism which is of the ordinary step by step type having a stop-plate 5, a catchplate 6, a catch-plate actuating member? for moving said catch-plate and carried by the spindle8.
- the ordinary movablebushing 9 carrying the switch-plates 10 and propelled by the spring 11 whose lower end is engaged therewith,
- the spring-plate has a key-hole slot 13 whose narrow portions slip into the slots 14 in the spindle, Fig. 7, and hold the plate from turning.
- the plate 12 is clamped in place by a nut 15.
- the plate 12 is formed with two projections 16 which extend above the general surface or" the plate and constitute ratchet teeth.
- ratchet memloeg 17 having depending teeth 18 adapted to engage the teeth 16.
- This ratchet member I is carried by a sliding sleeve 19, which is held in downward position by the spring 20 and rotates with a shaft 21 by reason of splines 22 extending into slots in the sleeve.
- the shaft 21 extends through a packing box 23 having a compression 24, and is provided with a thumb-turn 25.
- the shaft 21 is held against vertical movement by a plate 26 secured to the cover and having a slot 27 whose sides enter an annular recess 28 in the shaft.
- the switch above described is operated by turning the thumb-turn 25, which, through the shaft 21 and the ratchet clutch- .
- the spring-plate with its ratchet teeth and the ratchet member 12 act as a separable clutch to connect the shaft 21 with the spring 9 shaft holds it against axial movement in the cover.
- the switch mechanism is entirely inclosed and, being operated by a ratchet mechanism carried by the cover, a reverse movement of the thumb-turn is possible without interfering with the switch mechanism.
- thumb-turn 25 is provided with a recess covering and inclosing the stufiing box 23 and compression nut 24: and protecting them.
- a rotary snap switch having a stopplate, a catch-plate, a spindle actuating said catch-plate, a switch plate bushing carried by said spindle and rotating the said catchplate, the combination of a spring-plate rigidly secured to said spindle, said springplate havingratchet teeth, a casing for said mechanism, a cover therefor, a shaft carried by said cover, an axially movable ratchet member engaging said ratchet teeth and carried by said shaft, a spring interposed between said coverand said ratchet member and holding said ratchet member normally in engagement with the teeth on said springplate, and a handle for turning said shaft, said ratchet member and said spring-plate constituting separable clutch members.
- a rotary snap switch having a stopplate, a catch plate, a spindle actuating said catch-plate, a switch plate bushing carried by said spindle" and rotating the said catchplate, the combination of a spring-plate rigidly secured tosaid spindle, said springpl-ate having ratchet teeth, an axially movable ratchet member engaging said ratchet teeth, a shaft for supporting and rotating said ratchet member, a cover for said casing supporting said shaft, and a spring interposed between said cover and said ratchet member and holding said ratchet member normally in engagement with the teeth on said spring-plate, and a handle for turning said shaft, said ratchet member being separable from said spring-plate, said cover having a stuffing box surrounding said shaft, and means for holding said shaft against axial movement within said stufling box.
Description
G. H. HART.
ELECTRIC SWITCH.
APPLICATION FILED OCT. 2. 191a,
Patented Mar. 18, 1919.
lA/VE/VTOR 6. h. HART BY @w/AW I 7 A TTOR/VEYS GEORGE H. I- IART, 0F HARTFORD, CONNECTICUT.
ELECTRIC SWITCH. i
menses.
Specification of Letters Patent. Patentgd Mww, 118, 1919,,
Application filed October 2, 1918. Serial No. 256,528.
To all whom it may concern. Be it known that l, GEORGE H. HART, a citizen of the United States, residing at the city of Hartford, county of Hartford, State of- Connecticut, have invented a certain new and useful Improvement in Electric Switches, of which the following is a full, clear, and exact description.
My invention relates to improvements in rotary snap electric switches and has for its object to produce a rotary snap switch in which the spindle for actuating the catch or bolt is relieved of driving strain. It further has for its object to produce a snap switch which is driven through the springhook or spring-plate with which one end of the spring directly engages, power being appliedthereto independently of the spindle.
It further has for its object to produce a rotary snap switch in which the handle has a ratchet action, the spring-hook being so formed as to constitute one of the ratchet members.
It further has for its object in a marine switch, such switches comprising a switch mechanism contained within a water and gas-tight casing for use in connection with vapor-proof -ittings and adapted for use upon vessels where it is desirable to protect the switch from moisture and in chemical and powder plants and the like, to provide a ratchet member carried by the cover and separable from the switch mechanism with the cover. r
The following'is a description of an embodiment of my invention, reference being had to the accompanying drawings, in which,
Figure 1 is a plan View of the inclosed marine switch;
Fig. 2 is a longitudinal section of the same;
Fig. 3 is a mechanism; 7
Fig. 4: is a partial inner viewbff the inclosing casing;
Fig. 5 is a detail of the spring-plate or clip; 4
Fig. 6 is adetail of one of the ratchet members and its support; I
Fig. 7 is a detail of the switch spindle;
Fi e 8 is a detail of the upper ratchet mom or shaft; and,
plan view of contact actuating Fig. 9 is a holding plate for said shaft.
Referring more particularly to the drawings, 1 is a casing having a cover 2 screwed thereon, the casing having tapped holes 3'3 for conduits for conductors leading to the switch mechanism. 4: is the switch mechanism which is of the ordinary step by step type having a stop-plate 5, a catchplate 6, a catch-plate actuating member? for moving said catch-plate and carried by the spindle8. Surrounding the spindle is the ordinary movablebushing 9 carrying the switch-plates 10 and propelled by the spring 11 whose lower end is engaged therewith,
and whose upper end engages a spring-plate or hook 12, these parts, with the exception of the form of the spring-plate, being substantially as shown in Patent No. 753,881 dated March 8, 19041 and operating in the well known way.
The spring-plate has a key-hole slot 13 whose narrow portions slip into the slots 14 in the spindle, Fig. 7, and hold the plate from turning. The plate 12 is clamped in place by a nut 15. The plate 12 is formed with two projections 16 which extend above the general surface or" the plate and constitute ratchet teeth.
Supported by the cover 2 is a co-acting ratchet memloeg 17 having depending teeth 18 adapted to engage the teeth 16. This ratchet member I is carried by a sliding sleeve 19, which is held in downward position by the spring 20 and rotates with a shaft 21 by reason of splines 22 extending into slots in the sleeve. The shaft 21 extends through a packing box 23 having a compression 24, and is provided with a thumb-turn 25. The shaft 21 is held against vertical movement by a plate 26 secured to the cover and having a slot 27 whose sides enter an annular recess 28 in the shaft.
The switch above described is operated by turning the thumb-turn 25, which, through the shaft 21 and the ratchet clutch- .member 17 supplies power direct to the spring-plate l2- and independently of the spindle for winding up the spring 9 and -=throwing the "switch plates when the bolt 753,881, the function of thespindle in'the present construction when turning in a forward direction being merely to carry the catch-plate actuating element 7, which, on account of the connection of "the spindle, is fixed relatively to the spring-plate. The spring-plate with its ratchet teeth and the ratchet member 12 act as a separable clutch to connect the shaft 21 with the spring 9 shaft holds it against axial movement in the cover.
The switch mechanism is entirely inclosed and, being operated by a ratchet mechanism carried by the cover, a reverse movement of the thumb-turn is possible without interfering with the switch mechanism. The
thumb-turn 25 is provided with a recess covering and inclosing the stufiing box 23 and compression nut 24: and protecting them.
- As will be evident to those skilled in the art, my invention permits of various modifications without departing from the spirit thereof or the scope'of the appended claims. What I claim is: v 1. In a rotary 'snap'switch having a stopplate, a catch-plate, a spindle actuating said catch-plate, a bushing revolving with said catch-plate and carrying the switch plates, the combination 'of a spring-plate rigidly secured to aid spindle, a spring having one end directly engaging said spring-plate, and
switch-actuating vmeans connected to saids'pring-plate independently of said spindle for rotating said spindle through said spring-plate.
. 2. In a rotary snap switch having a stopplate, a catch-plate, a spindle actuating said catch-plate, a switch plate bushing carried by said spindle and rotating the said catchplate, the combination of a spring-plate rigidly secured to said spindle, said springplate havingratchet teeth, a casing for said mechanism, a cover therefor, a shaft carried by said cover, an axially movable ratchet member engaging said ratchet teeth and carried by said shaft, a spring interposed between said coverand said ratchet member and holding said ratchet member normally in engagement with the teeth on said springplate, and a handle for turning said shaft, said ratchet member and said spring-plate constituting separable clutch members.
3. In a rotary snap switch, having a stopplate, a catch plate, a spindle actuating said catch-plate, a switch plate bushing carried by said spindle" and rotating the said catchplate, the combination of a spring-plate rigidly secured tosaid spindle, said springpl-ate having ratchet teeth, an axially movable ratchet member engaging said ratchet teeth, a shaft for supporting and rotating said ratchet member, a cover for said casing supporting said shaft, and a spring interposed between said cover and said ratchet member and holding said ratchet member normally in engagement with the teeth on said spring-plate, and a handle for turning said shaft, said ratchet member being separable from said spring-plate, said cover having a stuffing box surrounding said shaft, and means for holding said shaft against axial movement within said stufling box.
GEORGE H. HART.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US25652818A US1297348A (en) | 1918-10-02 | 1918-10-02 | Electric switch. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US25652818A US1297348A (en) | 1918-10-02 | 1918-10-02 | Electric switch. |
Publications (1)
Publication Number | Publication Date |
---|---|
US1297348A true US1297348A (en) | 1919-03-18 |
Family
ID=3364894
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US25652818A Expired - Lifetime US1297348A (en) | 1918-10-02 | 1918-10-02 | Electric switch. |
Country Status (1)
Country | Link |
---|---|
US (1) | US1297348A (en) |
-
1918
- 1918-10-02 US US25652818A patent/US1297348A/en not_active Expired - Lifetime
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