US1702179A - Lamp for boilers - Google Patents

Description

Feb. 12, 1929. 1,702,179

A. M. SUTTON LAMP FOR BOILERS Filed March 23. 1928 Patented Feb. 12, 1929.

UNITED STATES ARTHUR M. SUTTON, OF ROCKY MOUNT, NORTH CAROLINA.

LAMP FOB BOILERS.

Application filed larch 28, 1928. Serial No. 264,034.

My present invention has reference to a light directing means which is primarily devised for use 1n the cab of a locomotive, and my object is the provision of means of this type whereby a single lamp bulb used to illuminate the coal pile in front of the tank may have its rays of light directed, to illuminate various other articles, as for instance, the air gauge, the steam, gauge, the water glass, etc., wlthout diverting the rays of light from the coal pile.

Obviously the improvement is susceptible to other uses besides the employment thereof in a locomotive and other objects and advantages of the invention will appear from the following detailed description when taken in connection with the accompanying drawings, it being understood that the drawings are merely illustrative and that such changes and modifications may be made therefrom as fairly fall within the scope of what I claim.

In the drawings:

Figure l is a side elevation illustrating the ap lication of the im rovement.

igure 2 is a top p an view of the improvement.

Figure 3 is a front elevation of the improvement. V

Figure 4 is a sectional view on the line 44 of Figure 3.

Figure 5 is a sectional view on the line 5-5 of Figure 4.

In Fi ure 1 of the drawings I have illustrated diagrammatically, and by dotted lines the cab of a locomotive and have indicated the same by the numeral 1. This cab has fixedly secured on the top thereof, adjacent to its rear a lamp bulb 2 which is usually employed for illuminating the coal pile in the tender of the locomotive as well as for illuminating the water supply tank, etc.

In carrying out my inventlon I secure to the top of the locomotive, directly in front of the bulb 2, a segmental housing 3. The housing is preferably of metal and has its arched front, at the center thereof provided with an opening 6 of a determined length and width. The inner and outer faces of the segmental front of the housing are formed with or have secured thereon arched flanges 4 and 5 of cross sectional angle formation which have their ed es arran ed over the upper, lower and if esired, si e walls provided by the opening 6. In the guidewa 8 provided by the inner angle flanges and the segmental face of the housing there'are shutters 7, respectively. The shutters are so arranged in the guideways that their inner or confronting ends are in lapping relation. Of course, any desired number of shutters may be employed and each of the shutters carries a tubular member 8 in whose outer end there is fixed a lens 9. The tubular members have secured thereon plates or flanges 7' which are received in the outer guideways provided by the angle flanges 4 on the housing. Unless the lens are covered the rays of li ht from the lamp 2 would pass through the tlfiflllill members 8 and through the said lens 9. In this manner it will be noted that a single lamp bulb is employed for directing light against the coal in the tender and for likewise directing rays of light against the various gauges and other appliances in the locomotive. In various instances it has been found that by causin the rays of light to be spread or widened t at the gauges may be better inspected or repairs may be made in an easier and quicker manner to other appliances in the locomotive and when this is desired I slide two, or if desired, all of the tubular members as close together as possible so that the light rays from the bulb 2 will be directed through a plurality of the lens 9 onto the object to be inspected orrepaired. Ordinarily, however, the tubular members are spaced so that light will be directed through all of the lens .to the several gauges and other appliances as heretofore stated.

The simplicity of the improvement and the advantages thereof will, it is thought, be understood and appreciated by those skilled in the art to which such invention relates so that further detailed description will not be required.

Having described the invention, I claim a The combination with a fixed illuminating bulb, of a segmental housing fixedly supported at one side of the bulb, said housin having its outer segmental face provide with an elongated opening, angle brackets secured to the opposite faces of the housing and partly entering the opening to provide guicleways between the face of the housing and the brackets, sliclable segmental plates in the inner gnicleways and having their confronting ends in lapping relation, a tubular member extending through each of the shutters, a comparatively narrow segmental plate fixed on each segmental member and received in the outer guideways of the housing, and 1 a lens for each tubular member.

In testimony whereof I aflix my signature.

ARTHUR M. SUTTON.

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