US665120A

US665120A - Rosette.

Info

Publication number: US665120A
Application number: US3323800A
Authority: US
Inventors: Andrew A Moffitt
Original assignee: Individual
Current assignee: Individual
Priority date: 1900-10-16
Filing date: 1900-10-16
Publication date: 1901-01-01
Anticipated expiration: 1918-01-01

Description

UNITED STATES PATENT GFFICE.

ANDREW A. MOFFITT,OF PAWTUCKET, nnoon ISLAND;

ROSETTEL SPECIFICATION formin part of Letters Patent No. 665,120, dated January 1, 1901.

Application filed October 16, 1900.

To all whom it may concern:

Be it known that 1, ANDREW A. MOFFITT, a citizen of the United States, residing at Pawtucket, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Rosettes, of

which the following is a specification, reference being bad therein to the accompanying drawings.

My invention relates to electrical rosettes adapted to support from the ceiling pendent electric lamps and similar devices, and has for'its object, primarily, removal of strain upon the parts, convenient arrangements of said parts, and a perfect contact with the main conductors.

Heretofore in attempting to remove the weight of the depending lamp from the wire connections it has been usual to recess the rosette above the cable-aperture to hold the knotted end of the local conductor-cable. This construction is difficult and expensive to effect in practice, and the convolutions of the'wire required by the knot unduly wear and break the cable-wire insulation. Furthermore, the common rosette wire-clamps require for their disengagement from the main conductors the removal of the entire rosette from the ceiling or the use of a specially-constructed screw-driver. Insurance inspectors are obliged to examine all rosette-knots in passing upon wiring. This now often necessitates the removal of the entire rosette from the ceiling. This procedure is unnecessary in passing upon my device. In fact, a local wire may be independently removed or replaced in my rosette without disengaging the latter.

My invention consists in the novel parts and combinations shown in the accompanying drawings, wherein-- Figure l isa perspective view of my rosette; Fig. 2, a central vertical section of the body portion of the same; Fig. 3, a similar view of the same with detailed parts in side'elevation; Fig. 4, a plan elevation showing the position of the conductors inconcealed work; and Fig. 5, a side elevation of the rosette-bod y, showing the clamp edges and omitting screws.

Like letters of reference refer to like parts throughout the several views.

serial No. 33,238. (No model.)

The body of my rosette A is made in one piece, of porcelain or similar material, having a cylindrical upper and conical lower portion. The latter has interior downwardly-directed channels a, which extend from openings near the cone-base b and converge near the coneapex, forming a central aperture 0 for the passage of the conductor-cable d. Circular passages e extend from the exterior of the cone to the channels above mentioned. Mounted by screws 11 in opposite sides of the rosette are wire-clamps, each consisting of oblong platesm'mwhich projectlaterally from the rosette-bod y and near their outer extremities are further united by binding-screws k. Olamped by the plates m n are the main conductors Z Z, skinned, as at 0. In order to secure a perfect contact with said conductors, the interior faces of the clamping-plates mm are centrally upset for a short distance from their ends, forming longitudinal projections r 8. These projections are to insure engagement of the clamping-plates with the main conductors or force the latter against the posts of screws it whenever any of the insulating material upon the main conductors accidentally intrudes between the clamping-plates. Binding-screws 25 are mounted in the lower clamping-plates n n, intermediate the screws.

t' and 7c. The heads of screws if when set up engage the metal cord tips or ends 12 of the flexible lamp-wires u. The flexible lampwires to are engaged with the rosette-body thus: On each side of the rosette-body, beginning with openings 19, each of the wires u passes downwardly through the channels a, and emerges from the orifice c, where they diverge, and running upwardly over a portion of the exterior of the cone reenter the channels a through the openings 6 on either side, thus forming loops w. The wires u thence continue downwardly through the channelsct and reemerge from the orifice c, where they are twisted to form the conductor-cable d, which supports the pendent lamp-socket. This arrangement removes the weight of the cable from the side connections.

For concealed work the cylindrical portion of the rosette-body is pierced at opposite points a; for the insertion therethrough of the main conductors -Z.

Having thus described my invention, what I claim as new, and. desire to secure by Letters Patent, is

In a rosette, the combination of an insulatingbod y havinginterior channels converging to form an orifice in the apex of the body, openings intermediate the channel-openings and leading to the channels, and flexible 1am p- Wires traversing said channels and looped through said openings, to relieve the strain IO upon the electrical connections.

In testimony WhereofI have affixed my signature in presence of two witnesses.

ANDREW A. MOFFITT.

Witnesses:

STEPHEN A. POTTER, HORATIO E. BELLOWS