US766767A - Electric-connection rosette. - Google Patents

Description

PATENTED AUG. 2, 1904.

M. NORDEN. ELECTRIC CONNECTION RCSETTE.

APPLICATION FILED SEPT. 19, 1903. N0 MODEL.

Patented August 2, 1904.

PATENT QFFICE.

MORTIMER NORDEN, OF NElV YORK, N. Y., ASSIGNOR, BY MESNE ASSIGN- MENTS, TO MARY BITTNER, OF NEW YORK, N. Y.

ELECTRIC-CONNECTION ROSETTE.

SPECIFICATION forming part of Letters Patent No. 766,767, dated August 2, 1904. Application filed September 19, 1903. Serial No. 173,796. (No model.)

To (bZ-l (Uh 077D it may concern/.-

Be it known that I, MORTIMER Non nmacitizen of the United States, residing in the borough of Manhattan, city, county, and State of New York, have invented an Improvement in Electric-Connection Rosettes, of which the following is a specification.

Lily invention relates particularly to the class of electric-connection rosettes that are employed in surface wiring; and the object of my invention is to produce a rosette in which electrical contact may be made with line-wires at the part connected to a foundation or support and in which said contact with the linewires may not be disturbed by taking away the removable parts, but also in which the connection through the leads from the rosette to the device utilizing the power may be made when the movable parts are connected tothe support or may be broken to open the circuit when the parts are disconnected from such support without the risk of contact with live conductors or the short-circuiting of the same.

According to my present invention the rosette is preferably of elongated rectangular shape and comprises a head and a base, both of which may be made of porcelain or other similar suitable material. The head is preferably provided centrally with an integral hol- 3 low semispherical portion extending appreciably on either side longitudinally of the head, and the base corresponds in outline with the head. The head is provided exteriorly of its hollow semispherical portion with openings placed in diametrically opposite positions and through which screws are passed contacting both with plates through which the circuit is made with the leads and with other plates in the base which are electrically connected with line-wires. These screws complete the electric circuit to and through the leads from the rosette and also mechanically connect the head and the base to hold the same together.

In the drawings, Figure 1 is a central longitudinal section of an electric-connection rosette representing my invention. Fig. 2 is a plan of the same. Fig. 3 is an inverted plan of the head. Fig. l: is a plan of the base, and Fig. 5 is an elevation and partial section showing a modification of the structure shown in Fig. 1.

(1 represents the head of the electric-connection rosette, which is preferably of elongated rectangular form and made of porcelain or other similar vitrified material. The head is provided with a central integral hollow semispherical portion a, which extends to an appreciable distance beyond two opposite surfaces of the head. Centrally and at diametrically opposite points outside of the semi- 6o spherical portion the head is provided with two sets of openings 2 and 3, and on the under side of the head 1/. I employ metal plates 6, which conform to the rear surface and are secured to the head a by means of screws 4 passing through the openings 3. Centrally and longitudinally the inner portion of the head (L is recessed, and the metal plates 5 are made to conform to the bases of these recesses, whereby they extend an appreciable distance within the interior of the hollow semispherical portion a. The plates Z) are also provided with screws or binding-posts 5, to which the leads 6 may be electrically connected, and the semispherical portion a is provided centrally with an opening 7, through which the leads 6 are passed.

0 represents the base, which is preferably made of the same material as the head and conforms to the same in outline. The base is provided with longitudinally-disposed central recesses (Z and d, and metal contact-plates e are secured in the recesses (Z at either end of the base by means of screws 8, and the plates e are provided with binding-posts 9, by which electrical contact is made between the plates 0 and the line-wires 10, the base 0 being provided with transverse recesses 11, through which the line-wires 10 are admitted. Screws 12 are employed and passed through the openings .2 in the head a, through the metal plates Z) and into the contact-plate e, completing the electrical connection from the line wires through the contact-plates 0, plates 6, the leads 6, and the device or devices to which the same supply power. The ends of the base 0 are provided with ribs 14: and corresponding edges of the head a with offset recesses 15.

These parts are adapted to fit into one another when the head and base are in position, in which relation the screws 12 also hold the parts together, and portions of the plates 7) fit within the ends of the recess (Z.

According to the modification shown in Fig. 5, I may provide the integral hollow semispherical portion of the head with a sleeve 16 and a nut 17, to which a metal fixture or other device may be secured. The base may be provided with openings 18, through which screws or other similar devices may be passed to secure the same to its support.

I claim as my invention 1. An electric-connection rosette comprising a head of elongated rectangular form made of porcelain or other suitable vitrified material, a base of similar form and material and having longitudinallydisposed central recesses, metal plates secured in said recesses in the base and with which the line-wires make contact, metal plates on the inner side of the head, screws passing through the said head and securing the metal plates on the inner side thereof thereto-and screws passing through apertures in the head at diametrically opposite points, passing through the metal plates and engaging the plates in the recesses of the base to connect the parts and complete the electric circuit.

2. An electric-connection rosette compris ing a head of porcelain or other suitable vitrified material and having an integral. semispherical hollow portion with an opening in the said portion and openings in the head outside and at opposite sides of said portion, metallic devices on the inner side of said head,

screws passing through said head to secure the said metallic devices thereto, means for connecting lead-Wires to said metallic devices, a base of the same material and configuration as the head, other metallic devices secured in recesses at either end of said base, bindingposts by which the line-wires may be secured to the said other metallic devices and means passing through the openings in the head for simultaneously holding the parts together and contacting electrically with both sets of said metallic devices to complete the electrical circuit through the rosette.

3. An electric-connection rosette comprising a head of porcelain or other suitable vitrified material and having an integral central semispherical hollow portion with an opening in the said portion and openings in the head outside of said portion, metal plates on the inner side of said head, screws passing through said head to secure the said metal plates thereto, binding-posts for connecting lead-Wires to said metal plates, a base of the same material and configuration as the head, other metal plates secured in recesses at either end of said base, binding-posts by which the line-Wires may be secured to the said other metal plates and screws passing through the openings in the head for simultaneously holding the parts together and contacting electrically With both sets of said metal plates to complete the electrical circuit through the rosette.

Signed by me this 5th day of March, 1903.

MORTIMER N ORDEN WVitnesses:

GEO. T. PINCKNEY, BERTHA M. ALLEN.

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