US857176A - Flush attachment-plug. - Google Patents

Description

No. 857,176. ATENT D JUNE is, 1907.

H. HUBBELL. FLUSH ATTACHMENT PLUG.

APPLICATION FILED JULY 30. 1906.

imam I ATTORNEY era as earns (F16.

HARVEY HUBBELL, OF BRIDGEPORT, CONNECTICUT.

FLUSH ATTACHMENT-PLUG.

Specification of Letters Patent.

Patented June 18, 1 907 Application filed July 30, 1906. Serial No. 328,349.

To mil whont it may concern:

Be it known that I, I'LARVEY HUBBELL, a citizen of the United States, residing at Bridgeport, county of Fairfield, State of Connecticut, have invented a new and useful Flush Attachment-Plug, of which the following is a specification.

Thisinvention relates to flush attachment plugs, so called, and has for its object to .pro duce an attachment plug of this class so constructed as to receive the body of the cap through an opening in the faceplate 'so that the cone only of the cap will project beyond the face plate when the cap is in place, and to provide a cover for the opening hinged in. such a manner that it will fold backward and he closely in contact with the face late when 1n the open position, andin the'c osed position Will lie flush with the surface of the face plate. With these and other objects in view. I have devised the novel flush attachment plug of which the following description in connection with the accompanying drawipg is a specification, reference characters being used to indicate the several parts:

Figure 1 is a front elevation of my novel flush attachment plug, showing the cover in the open position and the cap in place; Fig. 2 a side elevationcorresponding with Fig. 1; Fig. 3 a front elevation with the cap removed and the cover in the closed position; Fig. 4 a detail sectional view of the face plate and cover, in the open position; and .Fig. 5 is a similar view, the cover being in the closed position.

denotes a base which is provided with extensions 11 to which the face plate 12 is attached, leaving a recess 13 between the extensions which receives the coverin r block 14 and the body of the cap which is in icated b The base, extensions and coverin r bloc are preferably made of porcelain and t 1e face plate and cap of metal. The ca is provided with contacts 16, see dotted lines Fig. 2, which are received in corresponding 'insulating passages in the covering block precisely as in Letters Patent No. 793,197, granted to me June 27, 1905.

As the mode ofenga einent of the c0ntacts forms no portion o the present invention, it is not thought necessary to illustrate and describe them in detail in this specification.

17 denotes electrical connections which enter the cap in the usual manner. The face plate is secured to the extensions of the base ing through the face plate. The: face plate in any suitable manner as by screws 18 passis provided with a circular opening. 19

through which the cap passes intorecess 13, the cone only of the cap, which is dicated by 20, rojecting beyond the face plate, the body of the cap lying in the opening in the face plate and in recess 13. Around the lower edge of opening 19 is a shoulder 21 u on which the cover 22 rests when in the .o osed position, said shoulder serving as a stop for the cover when in closed position. The cover is provided upon one side with a tongue 23 which is pivoted between lugs 24 extending from a bar 25 which is itself pivoted in a rectangular recess 26 in one side of the opening 19 of the face plate. The pin of the cover to the bar is indicated and the pivot pin of-the bar to the face plate ,is indicated by 28. The rear face of car 23 and the rear face of the bar are beveled downward and forward as at 29 and 30 respectively, see Figs. 4 and'5, and the corres onding surfaces on the front of the bar and the wall of opening 26 are undercut so that in the closed position both the cover and the bar will lie flush with the surface of the face plate, the cover, ear, bar and 111 s fitting each other and the openings in the face plate closely with just a line to showbetween them. At the edge of the cover opposite to the hinge is a nail groove 31, and contiguous thereto in the face plate is a recess 32 for convenience in opening the cover. To raise the cover, the operator places the back of a finger nail in the recess and the edge of the nail in the groove, which enables the cover to be readily lifted. It will be noted that this the face plate, leaves the hinge wh'oll con-' cealed when the cover is in the close position, as clearly shown in Fig. 5, and permits the cover to be given a full halfturn, so that in the open position it will lie parallel with the face plate and in contact therewith.

Owing to the formation and structure of the parts asdescribed, the device presents a smooth fiat outer surface when the cover is closed, and might even be set in a floor where it could he stepped on, and yet the covercould not be sprung 0 en to the slightestextent. This is not 0 y due to the fact that the shoulder 21 serves as a stop to hold the cover 22 exactly in closed osition, but also to the arrangement of the ar 25 pivoted in tbs IIO

the recess 26 in the face plate and having its swinging edge recessed and receiving a tongue of the cover 22. Any pressure inward or downward upon the bar itself cannot serve to spring the cover 22 outward or upward to the slightest, extent.

Having thus described my invention I claim:

In a flush attachment plug, the combination with a face plate having an openin and a recess extending from one side thereo of a bar fitting said recess and pivoted therein and having end lugs, and a recess between said lugsand a cover fitting the opening of the face plate and having a tongue fitting the l r 5 against which said edges abut when the 20 cover is closed, being beveled.

In testlmony whereof Iafiix my signature, in presence of two witnesses.

HARVEY HUBBELL Witnesses: A. M Woosr R, S. W. ATHERTON.

Images