US961978A - Electrical condenser. - Google Patents

Description

R. H. MANSON. ELECTRICAL CONDENSER. APPLICATION FILED MAY 29, 1907.

Patented June 21, 1910.

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UNITED STATES PATENT OFFICE;

RAYHZj MANso F ELYRIA, 01110, Ass'reuon 1 0 THE DEAN ELECTRIC COMPANY, or ELYRIA, OHIO, A CORPORATION or onto.

ELECTRICAL CONDENSER,

To, all whom it concern:

Be itknown that I, RAY H. MANSON, a.

.; citizen of the United States, residing at Elyria, in the county of Lorain and Stateof .5 Ohio, have invented certain'new and useful Improvements in Electrical Condensers, of 'wh-lch the following is-a'specification, reference being had therein to the accompanying drawing.

My invention relates to electrical conensers'," more particularly to those con- .densers"that are used in telephone exchanges land-it consists in the construction, combinations, and arrangements herein described and claimed. ,v

,An object'of my invention is to provide a device so constructed that it may be readily secured on a; mounting plate without the use of special insulating strips or bushings, and

one in which the terminals can be inspected I withoutope ning the condenser can-.

A further object of my inventionis to provide a, cover for the condenser which .rnay be attached securely .to the condenser can and which can be readily removed therefrom without'any danger of the metal of the can coming in contact with the mounting plate." I

'A further object of my invention is to so arrange the parts that when the condenser is used places not requiring a mounting plate there will be no projecting bolts --or mountii1g screws to, interfere with the assemblingof the adjacent condenser or with the'ihspection and repair of the terminals. [I ameware oft-he inethod of mounting .the condenser on a telephone switchboard .lsothat'the mounting-means, consisting of threaded bolts, constitute also the condenser terminals to which the necessary conducting wires are soldered.

My present invention is designed to obviate certain objections'sometimes found to the use of the securing bolts as condenser terminals. In certain cases, when the latter method of mounting the condenser is em-- ployed, care must he'exercise'd in soldering the conducting wires to the terminals so .that'noportion of the solder shall run back into the threaded portion of the terminal and thus interfere with the ready dismounting of the condenser when it is desired to do so.

Specification of Letters lta'tent. Patented: J une 21, 1910. v Application filed May 29, 1907. Serial 1\l'o. 376 ,4= 22.

My invention is illustrated in the accom panying drawings in'which Figure .1 is a. sectional view through .a portion of the mounting strip and the (20115 (lensen- Fig. 2 is-asimilar view showing a modification of the mounting means. 'Fig.

3 is a detail view showing the construction of one of the condenser terminals.

Referring to the drawings and particular-l 5 to Fig. 1, eacheondenser C is-provided wit a wooden cover 0 having a shoulder a at the ends thereof against \\-'l1ieh"tl1 e metal sides a of ,the condenser can: are'adapted to abut when the cover is in position;- =It., wil1 be seen that by 'thisarrangement there is no danger of the metalpart of the can coming.--

in contact with the metal plate. Retaining screws 0* secure. the cover to the can and at the same time constitute a-rneans for readily removing said cover, if for any reason-it should be desiredvto do so. I

Disposed in slots in the wooden cover 0 are the-round nuts 0" threaded to receive"- the retaining screws 0 which are adapted to pass through the openings in the metal strip afto firmly secure the condensers tosaidstrip. Pins 0 pass through the nuts 0 into the wooden cover a and serve the double purpose of keeping the nuts from turning also for preventing a long screw from" and being forced into the condenser winding.

I have shown in the figures a double condenser and terminals therefor. denser is made of two separate rolled type tin foil and paper condensers each having its respective leaves brought out to its own pair of terminals so that one can contains.

the two condensers. lhe terminals 0 are arranged in groups as shown and each group rojects through an openingc in the mounts mg strip of. In my preferred construction I orm these terminals of brass strips, said strips being slotted at one endthereof to provides short arm I? and a long arm t. The short arm is bent downwardly and is adapted to be driven into the wooden cover, while the long arnnis bent upwardly and is provided ,with an opening. 5 for the rece -tion of the conducting wire which is so These terminals are further dered to it. secured to the wooden cover by means of the retainm screws 0 Openings s are also v provide in the cover a through which the Such a con- 'leadin -in wires of the condenser pass, the latter eing soldered to the terminals of.

The construction described above admits of several advantages. In the first place, if the-condenser is designed to be used in places not-.rcquirin a mounting plate, it

' will be seen that t ere are no projecting screws or bolts to interfere with the assem' bling. of the condensers -or with their readyinspection. Moreover, the method of se-' curing -the. terminals on 'the'outs'ide of the wooden-cover within the opening c in the mounting plates a dispenses with the insulating strips and bushings which are usually necessary. The terminals 0* are insulated from one another and from the metallic mounting plate a by air insulation only, the wooden cover 0 affording an efiicient insulating base 11 on which these condenser terminals 0 may he secured.

In Fig. 2 the nuts-c and the screws of are replaced by the bolts 0 and the nuts a. The

;p1ns c'serve the same purpose as those in Fi l. The terminals 0 are stormed similar y to those shown in Fig. 'l, but. instead of being secured on the outside of the cover 0 they aresecured on the inner side of the cover a and pass through'openings in sald cover, being; grouped however in a similar manner to those shown in Ei 1.

The shorter arms t of'the termina s are per- forated'to receive the ends of the leading-in manufacture.

wi'res of the condenser to which they soldered.

are -These terminals are insulated from each other by the air insulation provided by the opening 0 in the cover 6 The terminals a ar'ereadily accessible and as already shown, no insulating strips or bushings are necessary thus rendering the device simple in construction and inexpensive to group of condenser terminals rojects I by providing air insulation or the latter and screws operated from the outer Sidflp1 a metallic casing, a wooden to fit within said casing and of condenser terminals secured the outer Sldu of said cover and being connected with the leadingdn wires of the-condenser, a perforated mounting stri provided with an opening through whic t he oup of condenser terminals projects, and means operated on the outerside of said mounting strip and extending throu h the perforations thereof to engage sai nutsto 'firmly I secure said condenser to said mounting strip. a I

2. The combination of an electrical condenser having a metallic casing, a wooden cover adapted to fit within said casing andbeing provided with a the end of said casing, attaching said cover firmly tosaidcasing, securing nuts disposed in perforations in said cover, said nuts being flush with the outer and inner surfaces of. said cover, a

shoulder engaging retaining screws for group of condenser terminals secured to th'e Y outer side of saidcover and being connected with the leading-in wires of the con.- denser, a. perforated mounting 'stjri Y vided with'aniopenmg through wh c ythe said mounting strip and extendin through perforations in said strip and a apted to.

engage said nuts to securely fasten said con- I denser to .saidmounting strip.

3. In an electrical-condenser, the combination of an insulated-cover therefor, a condenser terminal conslsting of a strip ,of

.metal split part way down from one .of'it's ends and each split portion'bent in oppo-' site dlrectionsto positions at angles with,

the un'split end, one of said split parts'servmg as aterminal for an electric circuit, the other split part serving as a terminal for-the condenser, and mechanical means associated cover of the condenser. A

In testimon whereof I afiix my signature in presence 0 two witnesses. "RAY H. MANSON-E"- Witnesses: i

S. J. Roisn'nrs, W. C. STRONG;

with the unsplit end attaching it tojthe

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