US792877A - Frame for the glasses of signal-lanterns. - Google Patents

Description

No. 792,877. PATENTED JUNE 20, 1905. R. BLACK.

FRAME FOR THE GLASSES OF SIGNAL LANTEBNS.

APPLICATION FILED DEC. 22, 1904.

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FFICE.

PATENT ROBERT BLACK, OF NEW YORK, N. Y., ASSIGNOR TO THE DRESSEL RAILWVAY LAMP \VORKS, OF NEW YORK, N. Y., A CORPORATION OF NEWV YORK.

FRAME FOR THE GLASSES OF SIGNAL-LANTERNS.

SPECIFICATION forming part of Letters Patent No. 792,877, dated June 20, 1905.

Application filed December 22, 1904. Serial No. 237,882.

To all who/n, if) nan/y concern.-

Be it known that I, ROBERT BLACK, a citizen of the United States, residing in the borough of Manhattan, in the city, county, and State of New York, have invented an Improvement in Frames for the Glasses of Signal-Lanterns, of which the following is a specification.

My invention relates to improved devices for holding the color-glasses of a signal-lantern and for removing the same either for cleaning or for replacing a broken glass with a whole one.

In signal-lanterns it has heretofore been usual to firmly secure the color-glasses in frames, and it has been a diificult matter when the glass was broken to get at the frame to remove the broken pieces and put in a new glass-in fact, so difficult that usually the lantern must be sent to the factory and for the time being is out of use, which disadvantages it is the object of my invention to overcome.

I provide an apertured frame-arm of sheet metal, having in part an angular rim, a finger overturned from said rim, and at the opposite point a pivoted plate with an offset free end. The color-glass of the lantern, cut to shape, fits the frame-arm within the angular rim and beneath the finger at one side. After the glass is thus put in place the pivoted plate is turned so that the offset free end passes over the edge of the glass to hold it in position. This framearm is adapted to be mounted on a shaft in a signal-lantern and to be placed between the lens and the light of the lantern or moved away, as will appear from an application for Letters Patent filedby me of even date herewith.

In the drawings, Figure 1 is an elevation representing my improved frame-arm with a color-glass in position, and Fig. 2 is a longitudinal section at the dotted line a; m of Fig. 1.

The frame-arm a is of sheet metal. It is preferably secured to a cast plate 5 by the rivets 2, said cast plate having a-slceve b to receive a shaft on which the sameswings. The portion of the frame-arm a adapted to receive the color-glass may be of any desired shape. I'have, however, shown the same as circular, 3 indicating the boundary-line of the aperture, and c the color-glass. The framearm a is formed with a rim a, bounding the same for about two-thirds of a circle. At one side and bent over from the rim a is a finger-4.

(Z represents a pivoted plate secured by the pivot-pin 5 to the cast plate 7) and provided at its free end with an oflset cl. The frame-arm a on the center line is provided with a recess, which is advantageously stamped therein, as well as in the plate 5, and the pivoted plate cl is provided with a projection which is adapted to be received in said recess when the pivoted plate (Z is centrally on the center line of the frame-arm, the projection of the plate (Z snapping into place in said recess and performing the function of holding the pivoted arm (Z in the center line free from liability to accidentally shift its position through the movement of the lantern or the vibration or jolting of any train to which the lantern may be connected. In Fig. 1 this pivoted plate cl is shown by dotted lines to one side of its initial holding position and in the position in which the same will be placed when a colorglass 0 is placed in or taken out of the frame.

From the drawings it will be apparent that the color-glass is also of circular outline, is

received within the rim 3 of the frame, and I conforms thereto, resting upon the flat surface of the frame-arm a, with one edge beneath the finger 4 and the opposite edge beneath the offset end d of the pivoted plate (Z when the plate is swung from the dotted position, Fig. 1, into the full-line position. A circular form is preferable for the frame-arm a, as shown in the drawings; but other forms may be employed without departing from the spirit of my invention or the precise construction illustrated and described.

I claim as my invention 1. In a signal-lantern, an apertured framearm for a color-glass having an angular rim extending around the major portion of the periphery of the glass, a finger overturned from the rim at one side and a pivoted plate at the opposite side with an offset free end to pass over the edge of the glass.

2. In a signal-lantern, an apertured framearm for a color-glass having an angular rim extending around the major portion of the periphery of the glass, a finger overturned from the rim at one side, a pivoted plate at the Opposite side with an offset free end to pass over the edge of the glass, and means for holding the said pivoted plate in place free from accidental displacement by vibration.

3. In a signal-lantern, an apertured framearm for a color-glass having an angular rim extending around the major portion of the periphery of the glass, a finger overturned from the rim at one side, a pivoted plate at the opposite side with an offset free end to pass over the edge of the glass, the framearm being provided with a recess and the pivoted plate with an interlocking projection for holding said pivoted plate in an initial position of use free from accidental displacement by vibration.

4. In a signal-lantern, an apertured framearm, composed of an apertured sheet-metal part and a plate connected thereto by rivets, a

rim formed on the sheet-metal part bounding the major portion of the aperture therein and into which rim the color-glass is adapted to be received and fit, a finger overturned from the rim at one side and a pivoted plate with an offset free end to extend over the opposite edge of the color-glass, secured to the plate portion of the frame-arm and adapted to be turned toward the glass to hold the same, or away from the glass to release the same.

Signed by me this 17th day of December,

' ROBT. BLACK. l/Vitnesses:

GEO. T. PINCKNEY,

S. T. HAvILAND.

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