US2523943A - Safety electrical switch attachment - Google Patents
Safety electrical switch attachment Download PDFInfo
- Publication number
- US2523943A US2523943A US87471A US8747149A US2523943A US 2523943 A US2523943 A US 2523943A US 87471 A US87471 A US 87471A US 8747149 A US8747149 A US 8747149A US 2523943 A US2523943 A US 2523943A
- Authority
- US
- United States
- Prior art keywords
- upper section
- switch
- base plate
- actuating arm
- electrical switch
- 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
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/20—Interlocking, locking, or latching mechanisms
- H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
- H01H9/281—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock
- H01H9/282—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock and a separate part mounted or mountable on the switch assembly and movable between an unlocking position and a locking position where it can be secured by the padlock
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/20—Control lever and linkage systems
- Y10T74/20576—Elements
- Y10T74/20582—Levers
- Y10T74/2063—Stops
Definitions
- This invention relates to an attachment designed for use in connection with electric switches of the pivoted type, the primary object of the invention being to provide means whereby the switch may be secured and locked in either its on or off position to prevent the operation of the switch by unauthorized persons.
- Another object of the invention is to provide means for automatically securing the switch in its off position, when it is desired to cut off the current for repairing an oil burner in which the electric circuit is controlled by the switch.
- FIG. l is an elevational view illustrating an electric switch securing mechanism, constructed in accordance with the invention.
- Fig. 2 is a side elevational view thereof.
- Fig. 3 is an end elevational view of the attachment.
- Fig. 4 is a sectional view taken on line 1-4 of Fig. 1.
- the reference character 5 indicates the usual electric switch of the pivoted switch actuating arm type, the pivoted switch actuating arm being indicated by the reference character 6, and shown as extended through the opening of the usual finishing plate I which attaches to the switch pro-per, as by means of the screws 8, in the usual and well known manner.
- the device forming the essence of the present invention includes a base plate 9 formed with an opening so arranged that it may be secured to the finishing plate 7, by means of the screw 8 which secures the finishing plate in pcsition on' the switch.
- the base plate 9 is provided with upstanding longitudinal flanges l0 formed along the longitudinal edges thereof, the flanges adjacent to one end of the base plate being formed with openings to accommodate the pivot pin it to which the upper section of the securing device is pivotally connected. 7
- the upper section of the securing device or lock is indicated by the reference character 12, and is provided with inwardly extended flanges arm in a manner as shown by Figs. 1 and 2 l3 disposed along the longitudinal edges thereof, the flanges l3 being spaced apart a distance so that they will fit over the flanges It of the base plate, as clearly shown by the drawing.
- the pivot pin I I passes through openings in the flanges I3 pivotally connecting the upper section of the fastener to the base plate.
- the coiled spring indicated by the reference character it is wrapped around the pivot pin H, and is so connected with the base plate and upper section of the fastener, that the tendency of the coiled spring is to normally urge the upper section to its active position over the base plate.
- the flanges 10 of the base plate are formed with upstanding portions 15 that are provided with openings I6, for the reception of the hasp of a padlock, should it be desired to lock the upper section of the fastener against movement to prevent the operation of the switch actuating arm with which the device is used.
- the upper section is formed with slots ll through which the upstandin portions eXtend, and the portion of the upper section directly between the slots, is slightly concaved as at it to provide a clearance for the heap of the lock when a lock is used with the device.
- the upper surface of the upper section i2 is provided with the cut out portion 20 that is so arranged that the actuating arm 6 will fit thereinto, when the actuating arm is moved to its off position as shown by'Fig. 4 of the drawing. It Will be obvious that with the upper section of the fastener in this position, the actuating arm will be held against movement under normal conditions.
- the combination with the pivoted actuating arm of an electric switch, or a securing device for 3 securing the actuating arm in its off or on position, comprising a base plate secured to the electric switch adjacent to the actuating arm, outwardly extended flanges formed alon the iongitudinal edges of the base plate, said flanges having upstanding apertured portions, an upper section pivotally connected with the base plate and having slots through which the upstanding portions extend, the upstanding portions adapted to receive a securing means for securing the upper section against movement with respect to the base plate, and said upper section cooperating with the pivoted arm in preventing movement of the pivoted arm.
Landscapes
- Tumbler Switches (AREA)
Description
Sept. 26, 1950 J. T. cHoPPA 2,523,943
SAFETY ELECTRICAL SWITCH ATTACHMENT Filed April 14, 1949 1 III =1.
INVENTQR BY I I I I u ATTORNEYS.
Patented Sept. 26, 1950 j T D .srATEs PATENT: OFFICE SAFETY ELECTRICAL SWITCH ATTACHMENT I John T. Choppa, New Haven, Conn.
Application April 14, 1949, Serial No. 87,471
1 Claim. 1
This invention relates to an attachment designed for use in connection with electric switches of the pivoted type, the primary object of the invention being to provide means whereby the switch may be secured and locked in either its on or off position to prevent the operation of the switch by unauthorized persons.
Another object of the invention is to provide means for automatically securing the switch in its off position, when it is desired to cut off the current for repairing an oil burner in which the electric circuit is controlled by the switch.
With the foregoing and other objects in view which will appear as the description proceeds, the invention consists of certain novel details of construction and combinations of parts hereinafter more fully described and pointed. out in the claims, it being understood that changes may be made in the construction and arrangement of parts without departing. from the spirit of the invention as claimed.
Referring to the drawing Figure l is an elevational view illustrating an electric switch securing mechanism, constructed in accordance with the invention.
Fig. 2 is a side elevational view thereof.
Fig. 3 is an end elevational view of the attachment.
Fig. 4 is a sectional view taken on line 1-4 of Fig. 1.
Referring to the drawing in detail, the reference character 5 indicates the usual electric switch of the pivoted switch actuating arm type, the pivoted switch actuating arm being indicated by the reference character 6, and shown as extended through the opening of the usual finishing plate I which attaches to the switch pro-per, as by means of the screws 8, in the usual and well known manner.
The device forming the essence of the present invention, includes a base plate 9 formed with an opening so arranged that it may be secured to the finishing plate 7, by means of the screw 8 which secures the finishing plate in pcsition on' the switch.
The base plate 9 is provided with upstanding longitudinal flanges l0 formed along the longitudinal edges thereof, the flanges adjacent to one end of the base plate being formed with openings to accommodate the pivot pin it to which the upper section of the securing device is pivotally connected. 7
The upper section of the securing device or lock, is indicated by the reference character 12, and is provided with inwardly extended flanges arm in a manner as shown by Figs. 1 and 2 l3 disposed along the longitudinal edges thereof, the flanges l3 being spaced apart a distance so that they will fit over the flanges It of the base plate, as clearly shown by the drawing.
The pivot pin I I, passes through openings in the flanges I3 pivotally connecting the upper section of the fastener to the base plate. The coiled spring indicated by the reference character it is wrapped around the pivot pin H, and is so connected with the base plate and upper section of the fastener, that the tendency of the coiled spring is to normally urge the upper section to its active position over the base plate.
As shown, the flanges 10 of the base plate, are formed with upstanding portions 15 that are provided with openings I6, for the reception of the hasp of a padlock, should it be desired to lock the upper section of the fastener against movement to prevent the operation of the switch actuating arm with which the device is used.
The upper section is formed with slots ll through which the upstandin portions eXtend, and the portion of the upper section directly between the slots, is slightly concaved as at it to provide a clearance for the heap of the lock when a lock is used with the device.
As shown by Fig. 4 of the drawing, the free end of the upper section of the fastener, curves upwardly slightly as at 59 so that it will fit closely against the actuating arm.
The upper surface of the upper section i2, is provided with the cut out portion 20 that is so arranged that the actuating arm 6 will fit thereinto, when the actuating arm is moved to its off position as shown by'Fig. 4 of the drawing. It Will be obvious that with the upper section of the fastener in this position, the actuating arm will be held against movement under normal conditions.
When the actuating arm is moved to the position as shown in dotted lines, or the on position, the upper section will engage the actuating 2 of the drawing holding the arm against return move= ment to its off position.
From the foregoing it will be seen that due to the construction shown and described, I have provided an attachment for use in connection with the pivoted switch actuating arm that may be readily and easily applied for securing the switch actuating arm in either its cff? or on position.
Having thus described the invention, what is claimed is:
The combination, with the pivoted actuating arm of an electric switch, or a securing device for 3 securing the actuating arm in its off or on position, comprising a base plate secured to the electric switch adjacent to the actuating arm, outwardly extended flanges formed alon the iongitudinal edges of the base plate, said flanges having upstanding apertured portions, an upper section pivotally connected with the base plate and having slots through which the upstanding portions extend, the upstanding portions adapted to receive a securing means for securing the upper section against movement with respect to the base plate, and said upper section cooperating with the pivoted arm in preventing movement of the pivoted arm.
JOHN T. CHOPPA.
REFERENCES CITED The following references are of record in the file of this patent:
UNITED STATES, PATENTS 10 Number Name Date 2,169,860 Von HOOl'n Aug. 15, 1939 2,348,393 Krieger May 8, 1944'
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US87471A US2523943A (en) | 1949-04-14 | 1949-04-14 | Safety electrical switch attachment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US87471A US2523943A (en) | 1949-04-14 | 1949-04-14 | Safety electrical switch attachment |
Publications (1)
Publication Number | Publication Date |
---|---|
US2523943A true US2523943A (en) | 1950-09-26 |
Family
ID=22205385
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US87471A Expired - Lifetime US2523943A (en) | 1949-04-14 | 1949-04-14 | Safety electrical switch attachment |
Country Status (1)
Country | Link |
---|---|
US (1) | US2523943A (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2657007A (en) * | 1948-05-19 | 1953-10-27 | Ganz Milton | Latch attachment for valveoperated spray nozzles |
US2659780A (en) * | 1952-01-04 | 1953-11-17 | Harold C Berger | Safety appliance for switches |
US2663778A (en) * | 1951-02-14 | 1953-12-22 | Southern States Equipment Corp | Electric circuit protector |
US2795663A (en) * | 1954-03-26 | 1957-06-11 | Thomas C Estes | Toggle switch clamp |
US2813938A (en) * | 1954-08-25 | 1957-11-19 | Speizman Morris | Protective device for electrical switches |
US2832857A (en) * | 1954-03-15 | 1958-04-29 | Wadsworth Electric Mfg Co | Locking plate for circuit breakers, switches and the like |
US2937248A (en) * | 1959-02-27 | 1960-05-17 | Ite Circuit Breaker Ltd | Circuit breaker handle lock |
US2943162A (en) * | 1958-05-12 | 1960-06-28 | Fed Pacific Electric Co | Circuit breaker having locking provision |
US2979581A (en) * | 1948-08-05 | 1961-04-11 | Fed Pacific Electric Co | Push button stations |
US3170050A (en) * | 1961-07-17 | 1965-02-16 | Buturuga John | Safety guard for electric switch |
US3197581A (en) * | 1962-06-06 | 1965-07-27 | Square D Co | Two piece handle locking device each with portions interlockable with the other |
US3255320A (en) * | 1962-07-26 | 1966-06-07 | Murray Mfg Corp | Circuit breaker handle lock |
US3275763A (en) * | 1963-09-26 | 1966-09-27 | Paul J Ethington | Combination lock apparatus having lock elements with alignable openings |
US3595040A (en) * | 1969-08-01 | 1971-07-27 | Square D Co | Handle lock attachment |
US3678228A (en) * | 1970-10-23 | 1972-07-18 | Square D Co | Handle locking attachment for electrical control devices |
US3784766A (en) * | 1973-02-09 | 1974-01-08 | Us Navy | Positive lock toggle guard |
US4468544A (en) * | 1983-07-25 | 1984-08-28 | Anamae Wainess | Switch lock |
US9859074B1 (en) | 2017-09-03 | 2018-01-02 | Carlos M. Martinez | Locking device for rocker switch |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2169860A (en) * | 1937-02-12 | 1939-08-15 | Gen Electric | Guard means for electric switches |
US2348393A (en) * | 1942-04-20 | 1944-05-09 | Cutler Hammer Inc | Guard for electric switch levers |
-
1949
- 1949-04-14 US US87471A patent/US2523943A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2169860A (en) * | 1937-02-12 | 1939-08-15 | Gen Electric | Guard means for electric switches |
US2348393A (en) * | 1942-04-20 | 1944-05-09 | Cutler Hammer Inc | Guard for electric switch levers |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2657007A (en) * | 1948-05-19 | 1953-10-27 | Ganz Milton | Latch attachment for valveoperated spray nozzles |
US2979581A (en) * | 1948-08-05 | 1961-04-11 | Fed Pacific Electric Co | Push button stations |
US2663778A (en) * | 1951-02-14 | 1953-12-22 | Southern States Equipment Corp | Electric circuit protector |
US2659780A (en) * | 1952-01-04 | 1953-11-17 | Harold C Berger | Safety appliance for switches |
US2832857A (en) * | 1954-03-15 | 1958-04-29 | Wadsworth Electric Mfg Co | Locking plate for circuit breakers, switches and the like |
US2795663A (en) * | 1954-03-26 | 1957-06-11 | Thomas C Estes | Toggle switch clamp |
US2813938A (en) * | 1954-08-25 | 1957-11-19 | Speizman Morris | Protective device for electrical switches |
US2943162A (en) * | 1958-05-12 | 1960-06-28 | Fed Pacific Electric Co | Circuit breaker having locking provision |
US2937248A (en) * | 1959-02-27 | 1960-05-17 | Ite Circuit Breaker Ltd | Circuit breaker handle lock |
US3170050A (en) * | 1961-07-17 | 1965-02-16 | Buturuga John | Safety guard for electric switch |
US3197581A (en) * | 1962-06-06 | 1965-07-27 | Square D Co | Two piece handle locking device each with portions interlockable with the other |
US3255320A (en) * | 1962-07-26 | 1966-06-07 | Murray Mfg Corp | Circuit breaker handle lock |
US3275763A (en) * | 1963-09-26 | 1966-09-27 | Paul J Ethington | Combination lock apparatus having lock elements with alignable openings |
US3595040A (en) * | 1969-08-01 | 1971-07-27 | Square D Co | Handle lock attachment |
US3678228A (en) * | 1970-10-23 | 1972-07-18 | Square D Co | Handle locking attachment for electrical control devices |
US3784766A (en) * | 1973-02-09 | 1974-01-08 | Us Navy | Positive lock toggle guard |
US4468544A (en) * | 1983-07-25 | 1984-08-28 | Anamae Wainess | Switch lock |
US9859074B1 (en) | 2017-09-03 | 2018-01-02 | Carlos M. Martinez | Locking device for rocker switch |
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