US270794A

US270794A - claek

Info

Publication number: US270794A
Authority: US
Publication date: 1883-01-16
Anticipated expiration: 1900-01-16

Description

A. HARRIS & G. M. CLARK.

(Nq Model.)

LOCOMOTIVE HEAD LIGHT.

Patented Jan.16,1883.

Pig Zl Fig.1.

all y INVENTURE. 4 14/. M,

WITNEEEEE wzflM UNITED STAT S PATENT OFFICE.

ARTHUR HARRIS AND GEORGE M. CLARK, OF CHICAGO, ILLINOIS, ASSIGNORS TO J. MCGREGOR ADAMS, OF SAME PLACE.

LOCOMOTIVE HEAD-LIGHT.

SPECIFICATION forming part of Letters Patent No. 270,794, dated January 16, 1883;

Application filed November 28, 1882. (No model.)

To all whom it may concern Be it known that we, ARTHUR HARRIS and GEORGE M. CLARK, both of Chicago, in the county of Cook and State of Illinois, have in- 5 vented certain Improvements in Locomotive Head-Lights, of which the following is a specification.

This invention relates to means for displaying signals on locomotive head-lights; and. r briefly eonsidered,itconsistsinintensifyingand transmitting the interior light of a head-light by means of a reflector or reflectors and casting it laterally to opposite sides of the headlight casing to angularly-projected flanges 1 placed on a line parallel to the base of the head-light, said flangesforming hoods or covers, within each of which is a mirror or reflector, the light being thence cast upon the respective opaque sides of the casing,on which the signal-nun1bers are painted.

This invention differs from those inventions in which the light is transmitted through transparent surfaces bearing the signal numbers or marks.

. In the accompanying drawings, Figure 1 is a side view of our improved head-light. Fig. 2 is a vertical section of the same on the line m w of Fig. 1. Similar letters of reference indicate similar 0 parts in both views.

A is the outer casing of the head-light or lantern, and b that portion of the side of the casing upon which the signaLnumber or other mark is painted. This portion may, if preferred, be painted in some color contrasting with the general color ofthe casing, and such as will best serve to receive the light thrown thereon and exhibit the signal.

The lamp is shown by c. The chimney of the lamp passes through the rear of the main reflector in the ordinary manner. That light which is transmitted through the part of the chimney above the main reflector is received upon reflectors d (1, placed back of the chim- 5 ney, and by them cast laterally to opposite sides of the casing A to reflectors d d. The reflectors d d are confined within outwardly-- 'projecting flanges d d, forming covers or hoods, the lower or under portions of which are open and fitted with glasses d. The light thrown upon the reflectors d d is cast upon the opaque surfaces 1), on which are painted the number or marks to be exhibited.

This invention may be added at trifling cost to head-lights in ordinary use. We do not confine ourselves to the shape or location of the interior reflectors shown in the drawings; but

' We claim as our inventionl. The outer casing of a locomotive headlight, combined with outwardly projecting flanges forming hoods havingtheir under sides open and their inner portions provided with reflectors, said hoods being arranged to receive lightreflected from the interior of the 6 head-light or lantern and cast it upon opaque surfaces at the outside of the case, substantially as set forth.

2. In a locomotive head-light, a reflector or reflectors situated back of the chimney, and receiving light from that portion thereof which projects through and above the main reflector. combined with side reflectors, and opaque surfaces exterior of the case bearing a signal number or mark, whereby the light is thrown by said side reflectors upon the said opaque surfaces'at the outside of the case, substantially as set forth.

3. A locomotive head-light having exterior opaque surfaces containing a signal number or mark, combined with projecting hoods or covers, each having an interior reflecting-surface, and an open portion permitting light cast into the hoods or covers from the head-light lamp to be reflected or cast from the hoods to or upon the said exterior opaque surfaces of the casing, substantially as set forth.

In testimony whereof we have hereunto set our hands and seals this 22d dayot' November, 1882.

ARTHUR HARRIS. GEO. M. CLARK.

\Vitnesses LAURENCE BROWN, OSBORNE SAMPSON.