US990853A - Adjustable support for vapor-lamps. - Google Patents

Description

S. E. PLICHTNER.

ADJUSTABLE SUPPORT FOR VAPOR LAMPSJ APPLICATION FILED JAN. 9, 1905.

1 99Q 853 Patented May 2, 1911.

5440011 to a able Supports for Vapor-Lamps, of which UNITED STATES PATENT OFFICE.

STAN'WOOD E. FLIOI-ITNER, OF ENGLEWOQD, NEW JERSEY, ASSIG-NOR TO COOPER HEWITT ELECTRIC COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

ADJUSTABLE SUPPORT FOR VAPOR-LAMPS.

Original application filed July 28, 1904, Serial No, 218,473.

Specification of Letters Patent.

Serial No. 240,271.

To all whom it may concern:

Be it known that I, STANWOOD E. Fmcirr- NER, a citizen of the United States, and resident of Englewood, county of Bergen. State of New Jersey, have invented certain new and useful Improvements in Adjust the following is a specification.

The present invention relates to frames forvapor electric lamps such as are repre sented by the well-known mercury vapor lamps now in-common use.

The special object of the invention is to provide means whereby the starting of such lamps may be readily accomplished either singly or in groups by means of tilting apparatus in which connection is first made between the negative and positive electrodes through a stream or column of mercury. and

afterward such connection is broken by a proper manipulation of the apparatus, so that the current which originally flowed through the vapor column or stream shall pass through the vapor path between the main positive and the main negative electrodes. It has been found in practice that a variety of tilting frames is required for various purposes. whether for photographiug by means of mercury vapor lamps. or for printing, enlarging or copying, as the case may be. I

This application is a division of my application filed July 28, 1904, Serial Number 218,473, and relates to a special application of the invention therein described ,a,nd

. shown.

' In the drawings, Figure 1 is a front elevation of an apparatus such as is commonly used for printing or enlarging: and'Fig. 2 is a front elevation of a device particularly adapted for-printing in portrait worln Referring to Fig. 1, I show two lamps. 2, 2, mounted on a frame, 3. the said frame being hinged at 4 to a support, 5. The lamps 2, 2, as will be observed are at a slight angle from'the horizontal. To start the lamps into operation. it is only necessary to tilt the frame on the hinge 4 so as to carry a stream or column of mercury from the electrodes at the right hand ends of the lamps into contact with the electrodes at the opposite ends thereof. whereupon cur- .rent will flow through the two lam s by way of the mercury in the paths. On rcstoring the apparatus to the position shown.

in the drawing, the mercury columns or paths will be divided, causing a starting of the lamps by the shunting of the. current through the vapor in the several lamps. In this description it is assumed that the main current is turned on before the operation of shifting the apparatustakes place.

The apparatus shown in Fig. 2.. -d-iffei's from that last described- -iir'th'at the lamps 2, 2, in their operative position are assumed to be horizontal/ In order to accomplish the formation and subsequent separation of the mercury columns orstreams in this construction. a double hinge is provided. one. hinge being shown at 4, as before, and the other at 6. Between the support 5 and the frame 3 in Fig. 2 is placed a plate, 9. The two flaps of the hinge 4 are connected with the supportb and the plate 9 while the two flaps of the hinge 6 are connected with the said' plate 9 and the frame 3. By tilting the apparatus through the medium of the hinge 4, a. flow of mercury-may be established from the electrodes at the right hand ends of the apparatus to the others at the left hand ends thereof. and in case such a column or stream of mercury is established, the said stream or column will be interruptedby the,

to the first named electrode at the right hand 'end of the apparatus. will be carried back to its appropriate position and the lamps will be in proper condition for operation.

It will be'understood that instead of the two lamps shown in Figs. l-and 2, I may employ either a single lamp or a larger number of lamps than two.

A. rest. 7 may be provided for limiting the motion of the frame 3 upon its hinge 4.

It. will be understood that any suitable reflector may be placed behind the lamps 2. 2. either in common or singly. Such reflectors are shown in the drawings at 8, 8.

One view of the construction illustrated herein is that when the frame supporting the lamps is tilted there is no interference with any photographic or printing surfaces- Which may be placed in'their normal position in front of the lamps.

I claim as my invention 1. The combination With a vapor electric lamp, of a framewithin which the lamp-is mounted, a reflector whereby the luminous radiation of the lamp is thrown in one predetermined general direction, sai reflector being mounted on the frame, and means whereby the frame may be moved for starting purposes in a plane at right angles to the said direction of radiation.

Copies of this-patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. O.

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