US626919A - Electrical switch - Google Patents

Electrical switch Download PDF

Info

Publication number
US626919A
US626919A US626919DA US626919A US 626919 A US626919 A US 626919A US 626919D A US626919D A US 626919DA US 626919 A US626919 A US 626919A
Authority
US
United States
Prior art keywords
rod
block
ridge
switch
bushing
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
Application number
Publication date
Application granted granted Critical
Publication of US626919A publication Critical patent/US626919A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • GPHYSICS
    • G05CONTROLLING; REGULATING
    • G05GCONTROL DEVICES OR SYSTEMS INSOFAR AS CHARACTERISED BY MECHANICAL FEATURES ONLY
    • G05G1/00Controlling members, e.g. knobs or handles; Assemblies or arrangements thereof; Indicating position of controlling members
    • G05G1/02Controlling members for hand actuation by linear movement, e.g. push buttons
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00Contacts
    • H01H1/12Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20Bridging contacts
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S70/00Locks
    • Y10S70/30Switch lock

Description

No. 626,9n9. Patanten :une 13,1899.

' P. mEnAnY.

ELECTRICAL SWITGH.

(Application led Nov. 30, 189B.)

(No Model.)

UNITED STATES PATENT OFFICE.

PAUL MEDAEY, or cYNwYD, PENNSYLVANIA.

.ELECTRICAL SWITCH.

SPECIFICATION forming part of Letters Patent No. 626,919, dated .Tune 13, 1899.

f Application tiled November 30,1898. Serial No. 697,904. (No model.)

To all whom t may concern:

Beit known that I, PAUL MEDARY, a citizen of the United States, residing at Cynwyd, in the county of Montgomery and State of Penn= sylvania, have invented certain new and useful Improvements in ElectricalSwitches; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates toimprovements in electrical switches designed more particularly for use in connection with circuits for incandescent lights; and the invention is embodied in the construction and arrangement of parts hereinafter described, and defined in the claims.

lt is a well-known fact that there are many defects found to exist in and objections to the well-known form of push-button for making or breaking a circuit, and the same may be said to be true with relation to the turnbutton type of switch. In the former type a complicated mechanism and spring-actuated members are necessary, the complicated nature of the mechanism and use of the spring often resulting in the displacement of the parts, as well as wearing out or breaking of some of the connections. In the turn-button type it is sometimes found that persons not entirely familiar with the same will endeavor to turn on the light by turning the button in the wrong direction, and, further, that the necessity of turning the lights out by a continuous turning of the button or handle is quite perplexing to certain individuals who have originally been used to the turning on of gas, which requires a reverse movement to extinguish the gas.

My invention is designed to overcome the difficulties and objections existing in the present known devices, and it may be stated as consisting generally in a switch of that type wherein the making and breaking of a circuit are accomplished by a direct in-and-out pull of the movable member.

A further object of the invention is the production of a very simple switch which will embody the fewest possible number of moving parts, resulting in simplicity of construction and durability.

In my pending application, Serial No.

690,132, I have shown a form and construction of switch which is designed to accomplish the objects above referred to, and the present invention may be stated as being an improvement on the special form of switch therein disclosed, as well as an improvement generally in that type of electrical switches which in making and breaking the circuit re- 4quire to be pushed in and pulled out.

The invention consists more particularly in so constructing a sliding switch that a full movement of the movable member is assured after the same has been initially moved to a certain point, thereby insuring a complete making and breaking of the circuit.

In the accompanying drawings one form of the improvement is shown; but it is to be understood that the invention is not limited to such form, as changes can be made Without departing from the nature and principle of the invention.

Figure l of the drawings represents the improvement in longitudinal section, parts being shown in elevation. Fig. 2 is a crosssection on line a; Fig. l. Fig.3 is a detail longitudinal elevation of the rear insulated portion or sleeve.

A designates a supporting-block of insulating material formed with a central longitudinal bore, having enlargements at its opposite ends, in which are inserted and secured in any convenient manner electrical terminals B B', conveniently of brass or other suitable material. These terminals are preferably ot' uniform length, and their interior diameter corresponds with the diameter of the bore of the block, thereby forming a continuous bore through the block and terminals which is of uniform diameter throughout. veniently arranged in opposite directions relative to each other and each provided with binding posts or screws C G'. The upper portion of the block is chambered, as at D, in which the offset and binding-posts at the upper or outer end are located.

E designates a metallic cap-plate spanning the chambered end of the block and having a central opening through which the push or switch rod passes.

The block A is conveniently of cylindrical formation, although any formation desirable Each terminal has an offset b b' con-v may be employed, and the same is formed with an eccentrically-arranged longitudinal channel a, conveniently located adjacent to the offset b of the terminal B, for purposes presently to be stated.

The pushing or switch rod is of the following formations: F designates a metallic pin or stem having a threaded upper or outer end, on which is placed an insulated handpiece G. I-I and I'I are metallic bushings arranged, respectively, on the opposite ends of the pin F, while H2 is an insulated bushing or sleeve, conveniently of porcelain,interposed between the metallic bushings. The bushings and insulated sleeve are held on the pin Fin any convenient manner, conveniently by the end of the handpiece and the pin K passing through the transverse openingin th'e inner end of the bushing II and stem F. This pin K is bent outwardly parallel with the stem and is adapted to enter the pocket 7c, formed in the block, and thereby serves to prevent the rotation of the push-rod. To limit the outward movement of the pushrod, I conveniently form an enlargement or shoulder 71. on the inner end of the bushing H. This shoulder is designed to come in Contact with the terminal B when the push-rod is drawn out to its full extent. The inward movement of the push-rod is limited by a shoulder formed on the handpiece, as shown, the same engaging the cap-plate.

In switches of this type it is expedient that a full movement of the rod be had during each operation,and it is also desirable to have some resistance to the pull or push, so that the device will be held against accidental movem ent. Vith these objects in View I have provided the central insulating-sleeve H2 with a ridge or spline i, having sloping ends and a rounded crown. At the base of the ridge are the pocketst2 h3, the former being in the bushing II', While the latter is in the insulated sleeve. The terminal B has formed therein a narrow recess b2, which recess is continued into the block A, as shown. Nithin the recess the ridge or spline h works, the length of the recess being suiicient to permit the necessary longitudinal movement of the ridge as the rod is moved. The bushing II is also formed with a pocket 7a4. The block A is formed with two lateral circular chambers, in which are placed coiled springs L L', their inner ends resting against metallic balls M M', which project part Way through circular perfcrations formed in the terminals B B. The chamber and aperture containing the ball M communicate with the recess b2 and extend on opposite sides thereof, so that the ball normally rests in the path of the ridge h', but,being of greater diameter than the thickness of the ridge, cannot escape into the recess. The spring-pressed balls serve to force the bushings into close contact with the terminals, and the ball M,with its spring, serves to automatically move the rod in or out as soon as the ball is carried onto the inclined edges of the ridge. The springs may be adj usted by the screw-plugs N, itted in the outer ends of the chambers. In operation as the push-rod is drawn out the ball Mwill ride up on the forward inclined edge of the ridge, compressing the spring. As it reaches the top of the ridge and rests against the rear incline edge of the ridge the spring, which is under abnormal compression, will force the ball against the inclined edge with sufficient force to move the rod out to its full extent, the ball forcibly engaging in the pocket of the bushing H. The bushing His at all times in Contact with the terminal B, and as the bushing H is brought into contact with terminal B the circuit is formed, the balls and springs serving to insure a complete contact. The automatic movement is likewise e'llected When the rod is being forced'in.

Having thus described the invention, what I claim as new, and desire to secure by Letters Patent, is-

In a switch of the character described, the combination with an insulated block having oppositely-arranged terminals 'secured thereon, of a reciprocating pnslrrod having oppositely-arranged terminals and an insulated section, a substantially triangular projection carried by the rod and projecting into the block,and spring-pressed member in the block arranged to engage the projection during the movement of the rod, for the purposes de-- scribed.

In testimony whereof I afx my signature in presence of two witnesses.

PAUL MEDARY.

IOO

US626919D Electrical switch Expired - Lifetime US626919A (en)

Publications (1)

Publication Number Publication Date
US626919A true US626919A (en) 1899-06-13

Family

ID=2695520

Family Applications (1)

Application Number Title Priority Date Filing Date
US626919D Expired - Lifetime US626919A (en) Electrical switch

Country Status (1)

Country Link
US (1) US626919A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2491561A (en) * 1947-02-24 1949-12-20 Horne William Arthur John Permutation switch for the ignition system of motor vehicles
US2568482A (en) * 1948-03-10 1951-09-18 Otto J Blomberg Switch
US2675435A (en) * 1950-02-08 1954-04-13 Yale & Towne Mfg Co Push rod controller
US3086090A (en) * 1958-12-05 1963-04-16 Duff Norton Co Electric switching mechanism
US3223802A (en) * 1963-06-14 1965-12-14 Schulz Tool & Mfg Co Solenoid having a two-piece armature
US4404445A (en) * 1982-07-30 1983-09-13 Allen-Bradley Company Pushbutton switch operator assembly
US5345050A (en) * 1993-06-01 1994-09-06 Caterpillar Inc. Switch actuating assembly

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2491561A (en) * 1947-02-24 1949-12-20 Horne William Arthur John Permutation switch for the ignition system of motor vehicles
US2568482A (en) * 1948-03-10 1951-09-18 Otto J Blomberg Switch
US2675435A (en) * 1950-02-08 1954-04-13 Yale & Towne Mfg Co Push rod controller
US3086090A (en) * 1958-12-05 1963-04-16 Duff Norton Co Electric switching mechanism
US3223802A (en) * 1963-06-14 1965-12-14 Schulz Tool & Mfg Co Solenoid having a two-piece armature
US4404445A (en) * 1982-07-30 1983-09-13 Allen-Bradley Company Pushbutton switch operator assembly
US5345050A (en) * 1993-06-01 1994-09-06 Caterpillar Inc. Switch actuating assembly

Similar Documents

Publication Publication Date Title
US3403237A (en) Electrical switch having a one-piece actuator and spring arm structure
RU2289865C2 (en) Push-operated mechanism for turning-on switches, reversible knife-switches, selector switches, and the like by means of swinging key
US1584539A (en) Focusing and switch mechanism
US1662979A (en) Circuit closer
CH675175A5 (en)
US2377134A (en) Tilt-type lever-operated switch
US2259106A (en) Switch mechanism
US2749567A (en) Adjustable tooth brush
US4491708A (en) Electrical contact for use in a current interrupting unit
US2978555A (en) Electric switch
US4281368A (en) Keyhole illuminating apparatus
US1856350A (en) Valve control
US2295484A (en) Push-push operating mechanism for electric switches
US909742A (en) Switch.
US2020352A (en) Switch
US1051219A (en) Push-button electric switch.
US2757252A (en) Toggle switch
US2443539A (en) Flashlight switch
US1909138A (en) Contactor
US1731973A (en) Electric connecter
US2712580A (en) Contact making and breaking device
US3521013A (en) Pushbutton switch mechanism including a rocker contact and an actuator
US3935411A (en) Toggle switch
US1341468A (en) Separable attachment-plug
US786040A (en) Policeman's mace.