US1877785A - Marine light - Google Patents

Description

Sept. 20, 1932. PQR. ANDREWS 1, 7

' MARINE LIGHT I Filed Dec. 16 1929 2 Sheets-Sheet 2 0 a 46 z; E 56 Z 59" 3 I 'E/ as I I Y I W a i v F .1' P275223 g jg z wdz vwa ATTORNEYS Patented Sept. 20, 1932 UNITED STATES PATET OFFIGE PHILLIP B. ANDREWS, OF SEATTLE, WASHINGTON, ASSIGNOR T PACIFIC MARINE SUPPLY GO'MFAINY, OF SEATTLE, WASHINGTON, A CORPORATION OF WASHINGTON MARINE LIGHT Application filed December 16, 1929. Serial No. M4328.

' wharves, 'fish traps and the like. lt oftenbecomes quite a problem for the individual to maintain alight on such structures as fish traps during the long periods that there is no attendant present.

Tt is the purpose or" my invention to provide a light which will maintain a signal for long peri0ds, 0tten as much as 30 or to days,

and whichwill need no attention during thisperiod. It is also desirable to have a light of this character that can be made cheaply and is not aftected by climatic conditions.

Thereiore,the principal object of my invention is to provide a signal light that will give the maximum beam of light with an expenditure of very little energy.

A further object is to provide a signal light that will operate without attention for long periods of time.

A further object is to provide a signal light whose design lends it to economical construction.

@ther and more specific objects will be apparent from the following description taken in connection with the accompanying drawings, wherein Figure l is a cross-sectional view through the preferred form of my light showing the battery compartment opened.

Figure 2 is a fragmentary cross-sectional view showing part of the structure of Figure l but with an alternate lighting system.

liigure 3 is a view of the light circuit of the .modifled form partly in elevation and partly diagrammatical. l

Referring to the drawings, throughout which like reference numerals indicate like parts, numeral 4- designates a tubular lens which when of the type shown, is normally called a Fresnel light.

Located at the center of the lens is the light globe 6, which is normally of low candle power and is adapted to be-lighted by current supplied by a number of dry'cell batteries connected in parallel. The light is held in any convenient insulated fitting as 8, which in turn is supported by the member 10 which is adapted to screw into the apex of the conical reflector 12. l have found it very desirable to use a structure similar to that shown wherein the light may be removed tor inspection or replacement without disturbing the reflector. 12. The reflector 12 may be of any desirable construction. l have found plated metal most satisfactory as it is not subject to breakagef This is held in place by a plurality of supporting brackets l l. Disposed immediately above light 6 is a second conical reflector 16( This reflector is similar to reflector 12 except that no provision is made for a light and the tip is rounded oil as at 18. Any convenient means may be employed to maintain reflector 16 in position. l have found, however, that the spring cylinder arrangement shown is very convenient. This consists of a tubular member 20, which is secured to reflector 16 and of such size as to slide easily within the tube 22, which is secured to the upper dome mem ber 24. A coil spring 26 in compression presses the reflector snugly down on the lens l. The light may be supported in an .con venient manner as by the lunctte 28 which is secured to the dome 24. Member 2% is usually spun with an outwardly extending ledge 30 and a downwardly extending portion 32, which is adapted to engage the lens at 34-. liens his supported at its lower extremity by the base member 36, which has an inwardly extending portion 38 and an outwardly extending ledge 40. Member 38 engages the lower portion of the lens at t2,

holding it in position.

Members 2 land 36 are joined together by a'plurality of tie rods 44, which also serve, along with the horizontally disposed rings 46, to act as a shield or guard for the lens 4:. A battery compartment is provided, which is intended to normally house a number of dry cell batteries, although I believe it will be apparent that an form of battery might be used, or even a uid 'lamp might be substituted for-the entire electrical system.

The battery compartment .50 is provided ltd till

fication of my device. This is to meet the demands of certain regulations that require an alternate light as a safety precaution. In this form all elements'of my light are used excepting reflector 16 which is dispensed with,

and a second reflector of the form of reflector 12 is used in an inverted position. In this form neither of the lights 6 or 56 are normally in the exact optical center of the lens, although they can easily be on the axis of the lens. It will be apparent I believe, that these two lights might be connected in parallel sothat they will both burn all the time. This feature, while used under certain conditions, has the disadvantage of using twice the electrical current and also that in case one light burns out, the intensity of the light is diminished by one-half. To overcome this fault I have provided the electromagnetic device shown' as 59 in Figure 3, wherein 60 represents a suitable current supply, one side of which is connected to both lights by the wires 62 and 64. The other side goes to a binding post 65, which is provided with a pivot 66 and a contact member 67. Light 6 has its other terminal connected to binding post 69 and light 56 has its other terminal connected to binding post 7 0..

I believe it will be apparent that if the bar 67 is manually placed in engagement with contact 72, current Will flow from the battery through light 56, the binding post 70 and the electromagnet 74. Inasmuch as 67 is of magnetic material, this circuit will remain complete until light 56 is either removed or burns out. When this occurs spring 76 operates to move bar 67 until it engages the base of binding post 69. This then forms a circuit through light 6 to the battery.

What I claim is:

1. A. signal light consisting of a tubular lens; a dome member; a base member; means adapted to secure the dome and the base members in spaced relationship; said .dome

member having a downwardly extending ,portion terminating in a cylindrical rim of reduced diameter providing a circular opening adapted to receive one end of the tubular lens; said base member having an upwardly extending portion terminating in a cylindrical rim of reduced diameter providing an opening adapted to receive the opposite end of said tubular lens; an upwardly extending conical reflector positioned concentrically with said tubular lens, a second conical reflector disposed above the first named refiector and pointing in the opposite direction therefrom adapted to rest upon the top surface of said tubular lens; an electric light disposed at the optical center of said tubular lens; a removable battery compartment adapted to be secured to the base member, and a plurality of batteries in said battery compartment adapted to supply electrical energy to said electric light.

2. A signal light consisting of a tubular lens; a dome member; a base member; means adapted to secure the dome and base members in spaced relationship; said dome member having a downwardly extending portion terminating in a cylindrical rim of reduced diameter providing a circular opening adapted to receive one end of the tubular lens; said base member having an upwardly extending portion terminating in a cylindrical rim of reduced diameter providing an opening adapted to receive the opposite end of said tubular lens; a plurality of brackets secured to said base member and adapted to support said lens; an upwardly extending conical reflector positioned concentrically with said tubular lens and arranged to be supported by said brackets; a second conical reflector disposed above the first named reflector and pointing in the opposite direction therefrom adapted to rest upon the top surface of said tubular lens; an electric light disposed at the optical center of said tubular lens; a re movable battery compartment adapted to be secured to the base member; and a plurality of batteries in said battery compartment adapted to supply electrical energy to said electric light.

3. A signal light consisting of a tubular lens; a dome member; a base member; means adapted to secure the dome and base members in spaced relationship; said dome member being provided with a circular opening adapted to receive one end of the tubular lens; said base member having an opening adapted to receive the opposite end of said tubular lens; a plurality of brackets secured to said base member and adapted to support said lens; an upwardly extending conical reflector positioned concentrically with said tubular lens and arranged to be supported by said brackets; a second conical reflector disposed above the first named reflector and pointing in the opposite direction therefrom adapted to rest upon the top surface of said tubular lens; a tubular member secured to said upper reflector; a tubular guide member secured to said dome member and adapted to engage the first named tubu lar member in sliding relationship; resilient means disposed within said tubular guide tively in position; an electric light disposed at the optical center of said tubular lens;

a removable battery compartment adapted to be secured to the base member; and a plurality of batteries in said battery compart ment adapted to supply electrical energy to said electric light.

l, A signal light consistin lens; a dome member; a base member means adapted to secure the dome and base members in spaced relationship; said dome member being provided with a circular open ing adapted to receive one end of the tubular lens; said base member having an opening adapted to receive the opposite end of said tubular lens; a plurality of brackets secured to said base member and adapted to support said lens; an upwardly extending conical reflector positioned concentrically with said tubular lens and arranged to be supported by said brackets; a second conical reflector disposed above the first named reflector and pointin in .the opposite direction therefrom a apted to rest upon the top surface of said tubular lens a tubular member secured to said upper reflector; a tubular guide member secured to said dome member and adapted toengage the first named tubular member in slidmg relationship; resilient .means disposed within said tubular guide adapted to urge said upper reflector downwardly and thus secure the tubular lens positively in position; an electric light disposed at the optical center of said tubular lens; a

removable battery compartment ada ted to be-secured to the base member and to t within the said base member so that water will not drain into said battery compartment; tongue members secured to said base member; hinge members secured to said battery compartment in fixed operating relationship with said base members and a plurality of batteries in said battery compartment adaptfd 0 supply electrical energy to said electric In witness whereof, I hereunto subscribe my name this 27th day of November A. D.

PHILLIP R. ANDREWS.

of a tubular

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