US1580047A - Disconnecting switch - Google Patents

Description

April 6 1926. 1,580,047

s. N. JORDAN DISCONNECTING- SWITCH Filed June 5,` 1924 2 '/W?? W ou *Patented lApr. 6, 1926.

' 4UNITED' STATES` PATENT oFFlcE.

ssrn N. JORDAN, or BURLINGTON, Iowa.

nIscoNNnc'rnvG swrrcn.

Application led June 5,

To aZZ fwzom t may concern: A

Be it known that I, SETH N. ,IonpAm a citizen of the United States,zres1d1ng at Burlington, in the county of Des Moines and State ot' Iowa,vhave invented certain new and useful Improvements in Disconnecting Switches; and I dodeclare 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.

- My inventionv relates to new and useful improvements in the so-called disconnecting switches .used in connection with high tension wiring, switches of this type being usually mountedV at elevated points and being v controlled -by a pole having a hooked end.

Numerous switches of this general character have heretofore vbeen devised, but the majority ot them have been.. complicated and expensive and have "included at least two insulators, and the construction has been such as to require atleast two more insulators to take the strain of the wires from the insulators of the switch. It is the object of the present invention however, to reduce the cost of manufacturing disconnecting switches, to the minimum,v by materially simplifying their construction, making it 'ble to useonly one insulator for insulating switch parts and dead-ending the wires, the strain of the latter being exerted in a straight line at opposite ends of the insulator, so as to have no shearing e'ect on the latter. A

With the foregoing in view, the inven- -tion residesin the novel subject matter hereinafter described and claimed, thedescription supplemented by the accompanyl-nigure 1 is a side elevation partly broken away and in section, showing a d1seonnect-- ing switch constructed in accordance wit my invention. A

Figure 2 is a sectional view on line 2-2 of Fig. 1, cut horizontally. r f

Figure 3 isa sectional view showing' the one-piece insulator and associated parts.

Figure 4 is a vertical transverse sectional view as indicated by line 4-.4 of Fig. 1. Y

Figure 5 isa detail side elevation ofthe insulator, showing a-dijerent form of con struction. j

In the drawing above briey the numeral 1 designates a one-piece insulater formed of any desired material 1924. serial immenso.

sulicient strength and insulating qualities,

said insulator preferably having two, alined,

oppositely projecting branches 2 and 3, and a cent-ral branch 4 at right angles to said branches 2 and 3. In the preferred-form of construction, a `nut 5 embedded in the branch 4 to receive the -threaded end of an attaching bolt or the like 6, by means of which the insulator may be secured .to a cross arm or the like 7. I have shown a construction in which the nut 5 is threaded and cemented into the branch 4, as indicated at 8, butsaid nut could well be anchoredin the insulator in any other desired manner. In fact, other suitable provision could be made lfor attaching the insulator to a support, not necessitating the use of the nut 5. Y

A pair of elongatedwire anchors 8 and 9 have been shown projecting oppositely from vided with wire-receiving openings 2a andfrom lthe rod 8 at a point spaced outwardly from thel insulator Projecting laterally 1, I have shown a rigid metallic arm 12 to which a switch blade -13 is pivoted at 14,

Said blade being much longer than the insulator and rejecting beyond both endsl of the latter, V1e. endportions of said blade being `preferably parallel with the anchors 8 and 9 for the current conducting wires. The end ofthe blade 13,',opposite the arm 12, is receivable betweena pair of contacts 15 which are-secured to and project laterally from the Yanchor 9, in outwardly spaced relation with theinsulator.

tremity of the blade 13 may well be formed with an opening 16 to receive a hook or the like on the end of an operating pole, so that the switch may beopened or closed when over desired. Suitable stops 17 are preferably provided on the contacts 15, tohmit the closmg movement of the j, i Q

In Figf, al1-Insulator 151s shown dem The free excal with the'insulator 1, with the exceptions that it is provided with water-baffling iins l". Obviously, ii? desired, these fins may be used in connection with the form of construction above described, and in some instances, the'insulator may be made without the dead-ending openings 2a and 3a; t

By providing the construction shown and describedA or a substantial equivalent there-V of, it will be seen thata great simplification has been effected in the ordinary construction of disconnecting switches, yet that regardless of ,its extremely simple and inexpensive nature, the improved switch be equally as efficient as those heretofore prrovided.A Excellent results are obtainable om the details disclosed and" they are therefore` preferably followed, but within the scope of the invention as claimed, minorV tively and projecting oppositely therefrom, the outer ends-.soif 'said anchors having pro- 'said alined branches respective -ends of said anchors having provision' for- 1,5sojo47 .vision for connecting wires thereto, a switch blade adjacent said insulator and havingitsend portions parallel with said Wire anchors,

a rigid arm extending laterally from one of said anchors and pivoted to one end of said blade, and a fixed Contact extending laterally from the other anchor lfor co-action with *l l the other end of the blade. Y.

2.' A disconnecting switch comprising fa one-piece insulator having a pairof oppositely projecting branches and a central Y branch projecting at right angles tosaid pair of branches,a nut embedded in said central branch to receive an attaching bolt, straight alined inetallic wire anchors embedded at one end in and projecting from y, the outer connecting wires thereto, a switch blade adjacent said insulator and having-its end portions parallel with said wire anchors, a rigid arm extending laterally from one of said anchors and ivoted to vone end of. said blade, and a ally from-the other anchor -for co-action with theother end of the blade.

In testimony affixed my signature.

f ls'iifrii N. JORDAN.

ed contact extending laterv whereof I have hereunto` A

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