USRE13535E - Manuel b - Google Patents

Description

M. R. RODRIGUES.

PROTECTIVE COVERING FOR ATTACHMENT PLUGS.

APPLICATION FILED JANKS. 1913.

Reissued Feb.25, 1913. I 13,535.

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MANUEL RODRIGUES, OF NEW? YORK, N. Y.

PROTECTIVE GDVERING FOR ATTACHMENT-PLUGS.

Specification of Reiasued Letters llatent. Reisg gfl F91 25 1913. Original No. 1,040,762, dated October 1%, 1912, Serial Ho. 8%,55 25.

Application for reissue filed January 3,

1933. Serial Ito. 749,289.

To'all whom it may concern Be it known that LMAN' a citizen of the United Stat and a residentof the bOIF'"! county of Kings, city and York, have invented a certain ful Protective Covering tor Eachznenb Plugs, of which the following. fication, the same being a full, c act description of the invention, 5- enable others skilled in the art to which it up rtains to make and use the same.

his invention relates to improvements in that class of devices which are primarily adapted tobe inserted into a socket; designed to receive an electric lamp, althou 1 the invention may be applied to, advantageously employed in, other devices and l oeaiouns, America,

' a with other connections when the same may be deemedto be desirable.

Attachment plugs of the classwhich comprise the invention ordinarily consist of a body, or attachment plug proper, and a detachable cap therefor, and inasmuch when the cap is detached it is liable to fall and to become broken on account of the brittleness or frangibility of the insulating material ordinarily usedlI have designed an attachment plug and separable cap combined with an outer protective unbreakable shell, sheath or casing therefor, and have constructed according to my invention an appliance of the class described embodying the preferred construction of parts and their mutual operation and combination, arrangement and organization in avcomposite body or structure as hereinafter described.

To attain the consists in certain novel devices and combination of devices forming in operation a simple and efiicient organization.

In order to enable the invention to be fully understood, I shall proceed to eaplain the same by reference to the drawings, illustrative of an embodime t of the invention, which accompany and form a of this specification, an in whims- Figures 1 and 2 are longitudinal sections respectively of the attachment plug and cap therefor, the same being shown in a detached relation, and Fig. 3 is a longitudinal section of an assembled attachment plug and cap which embody another form of my invention;

Referring particularly by reference chardesired end the invention.

acters or symbols to the drawings, A denotes one oi the separable members of my device, in this instance consisting of the attachment plug cap and preferably consisting of the electrodes and support therefor inclosed either flush or otherwise in a sheath or body portion made of any tough insulating material, as Wood composition, fiber, cork, etc., which may, if desired, be covered with a metallic casing or shell a. The said member is preferably constructed with an interior longitudinal passage, or channel, or bore a running through the same, to contain the main line conductors, which bore is ordinarily enlarged atthe operative end of the "device so as to preferably form a socket or recessed portion 0: in which is ordinarily rigidly secured the plug cap proper B, preferably having contact fingers I) which may be suitably connected in an electrical relation, by the binding screw-*3 with the main line conductors as the wires C. The cap ll, which is ordinarily made of porcelain, is preferably held in position by means cement cl ordinarily applied to each side of a preferably'yielding or resilient packing l), as of rubber or like material. T he other separable member A. of my device, containing the body of the attachment plug or the attachment plug proper, is c a u made of insulating material and preferably of the same tough substance as the member A. It also preferably has a metallic casing or shell a. One end of the cap meinberis ordinarily screw threaded, as at E, which thread is adapted and arranged to be entered into the corresponding screw threaded contact shell of an ordinary lamp socket. The member A is also preferably formed with an interior bore or channel a terminating in an enlarged recess which is ordinarily securely vfastened the at tachment plug proper F provided with contact springs or other suitable devices, adapted and arranged to be engaged with the projecting contact springs or strips b. The attachment plug body may be ,held within the sheath A in-the same manner as the cap therefor is held within the covering A. The contact springs f are placed in electrical relation, as by binding screws f, with the two electrodes consisting of the metallic screw thread E and the insulated pin 0 by means of conducting means in the ordinary or any suitable manner.

or pocket a in being moved toward mg orifices hat the free The two me mbers A and A of my device may be readily'engaged and detached by and away from each other on the line of their axis, and in case the member A should he accidentally dropped when so detached, it will not break on account of the frangible ortion of the same, which is ordinarily ma e of porcelain, being so inclosed in a protective sheath or covering as to thoroughly protect the same from fracture. Y

In the form of my invention embodied in the device illustrated in Fig.3 the member G may be provided with a screw threaded socket g and insulated contact pin g which may be engaged by the screw threaded end 9 of the attachment plu cap G. The Inctallic screw thread 9 an the insulated pin 9 are placed in electrical relation with the conductors.

The two members may be held together by means of the engagement of the electric oonpreferably use suit-- nections thereof, but s]: able means for positively attaching the same together, as, for example, one member may carry spring fingers H attached to the oppothereof and havends of the said fingers which may register and interlock with, or be snapped upon, to the other member.

Inasmuch as some portions or features of my invention may manifestly be used without all of the others, and as obvious modifications will occur to persons skilled in the art, and as my invention may be embodied in widely varying forms, I wish it to be understood that I do not desire to be limited site sides of the periphery to the exact details of construction shown and described.

What I claim as .my invention is 1. An attachment plug consisting of two members,

sockets at one end, contact on an insulating base at the other extremity,

members, one member com vices mounted on-an insulating pins H securedmembers, one member com rising a screw socket at one end, contact dbvices mounted on an insulating base at the other extremity, and. an intermediate tough body portion, and the other member comprising vices mounted on an insulating baseat one end, an outlet for the line conductors at the other extremity, and an intermediate tough body portion.

' 2. An attachment plug consisting of two one member com rising aflscrew evices mounted and an intermediate tough body portion, and the other member comprising contact devices mounted on an insulating base at one end, an outlet for the line conductors at the other extremity, and an intermediate tough body portion, the body portion of each memher being formed with a recessed portion to contain the said contact devices.

3. An attachment plug consisting of two rising a screw socket at one end, contact evices mounted on an insulating base at the other extremity, and an intermediate tough body portion, and the other -member comprising contact debase at one end, an outlet for the line con uctors at the other extremity, and an intermediate tough body portion, the body portion of each-member beingv provided with means to hold the same together in an interlocked relation.

In testimony of the foregoing specification I do hereby sign the same in the borough of Brooklyn, city of New York, county of Kings and. State of New York, this 1st day of December, 1911. e

MANUEL R. RODRIGUES.

Witnesses:

I JOSEPH A. CAHILL,

E. A. MARSCHALK.

contact de-

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