US1086040A - Intermittent search-light. - Google Patents

Description

E. F. GIANNATTASIO.

INTERMITTBNT SEARCH LIGHT.

APPLICATION FILED JAN. 7, 1910.

PatentedFeb. 3, 1914.

4 SHEETS-SHEET 1.

WITNESSES z Cf 12' INVENTOR m, Ma ATTORNEY B. P. GIANNATTA SIO.

INTEEMITTENT SEARCH LIGHT.

APPLICATION FILED JAN. 7, 1910.

1,086,040, Patnted Feb. 3; 1914.

4 SHEETS-SHEET 2.

l||| Illllllllllllll mumm J0 INVENTOR COLUMBIA PLANDGRAPH 50.,WASMIN1I'PON. D. c.

E. P. GIANNATTASIQ- INTERMITTENT SEARCH LIGHT.

APPLIOATION FILED JAN. 7, 1910.

1,086,040. Patented Feb. 3, 1914.

4 SHEETS-SHEET 3.

WITNESSES E. P. GIANNATTASIO.

INTERMITTENT SEARCH LIGHT.

APPLIGATION FILED JAN. 7, 1910.

4 SHEETS-SHEET 4.

WITNESSES IN VENTOR COLUMBIA PLANQGRAPH COHWASHINGTON, D. C.

Patented Feb. 3, 1914.

ETTORE F. GIANNATTASIO, OF NEW YORK, N. Y.

INTERMITTENT SEARCH-LIGHT.

Specification of Letters Patent.

Patented Feb. 3, 1914.

Application filed January 7, 1910. Serial No. 536,904.

To all whom it may concern Be it known that I, ETTORE F. GIANNAT- TASIO, of the city, county, and State of New York, have invented certain new and useful Improvements in Intermittent Search- Lights, of which the following is a full description, reference being had therein to the accompanying drawings.

My invention relates to improvements in intermittent search-lights, although the in vention is applicable to other lamps where it is desirable to obtain a very powerful flash-light, without employing a supply of electric current, its main object is to produce an intermittent intense light for sig naling through thick fogs from vessels, locomotives and light-houses, without employing a supply of electric energy.

A further object of my invention is to produce a lamp in which a flame derived from any source of gas supply is employed, and in which combustion is promoted by automatically conveying a combustible illuminant in the path of the flame.

Another object of my invention is to produce a lamp of this character in which the mechanism is simple and easily operated.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar reference characters indicate corresponding parts in all the views.

Figure 1 is a vertical sectional elevation of the lamp illustrating my invention. Fig. 2 is a side elevation partly in section of the lamp, the view being taken at right angles to that shown in Fig. 1. Fig. 3 illustrates in detail the means for intermittently operating the receptacles which convey the combustible charges to the flame, and also means for effectuating the distribution and agita tion of the combustible as shown in Fig. 1. Fig. 1 is a partly sectional plan view of the lamp illustrating the flame which ignites the combustible material, and Fig. 5 is a plan assembled view of the apparatus, showing the form of a casing used in connection with the lamp.

As illustrated in Figs. 1 and 2, the lamp is provided with a suitable sub-base plate 10 containing grooves 11 and 12 for permitting the ball-bearings O to rotate freely, a plate 13 is secured to a base 14: by the bolts 15 and while the said plate 13 is resting on the ball-bearings the apparatus can be easily revolved laterally. The plate 13 is revolubly mounted on the sub-base 10 and is held thereto by the flange 16 of the pivot stud 16.

As shown in Fig. 2 a handle 17 is provided, to enable the operator to flash a light in whichever direction he may choose, and by adjusting worm 18 toward stud 16 by means of a lever 19 the lamp can be set so, that the rays of light can be continuously directed in a certain path.

The base 14 as sectionally illustrated in Fig. 1, is preferably hollow so that some mechanism can be contained within it.

The drawing shows a conventional electric motor 20, but I have not described its circuit because I claim nothing for it, as I do not limit the invention to any precise form of motor, however, any means of propulsion can be substituted for put-ting in motion the gear 21, and I wish it understood that the intervals between the flashes are mainly determined by the speed of the said gear-wheel 21 therefore, any suitable induction coil or gearing can be applied to the motor shown, so that the speed of the gear-wheel 22 can be reduced to about four revolutions per minute.

As the drawing shows, gear-wheel 22 is driven by the motor 20 meshing with a mate 21, the latter having a depending shaft 23 on to which is secured a gear-wheel 24, said shaft 23 being supported by a bracket 23*. To provide for an intermittent intense light, I use a combustible powder which is automatically conveyed in the path of the flame 25 and is ignited by the said flame, burning with a very powerful light. To produce the flame already referred to, I provide a tank 26 so that a supply of any compound which develops gases may be contained within it, such as calcium carbid, the said gases being conveyed to outlet 27 through tubing 28.

To supply the charges of the combustible material, I provide a chamber 29 for holding same, and while I do not limit myself to the particular compound specified, I have found that an efficient compound of this kind is made of: sublimed sulfur 50%, bronze-powder 50%. In carrying out this idea any suitable substance which will burn with a powerful light, and be ignited by the gas flame can be substituted.

The chamber 29 already referred to can be placed at any convenient point on the side of the lamp, and as the drawing shows the said chamber is supported on hood or casing 30, and the latter is mounted on a housing 31. An agitator 32 is provided (see Fig. l) which stirs the combustible powder and allows the same to fall on a revolving piston or distributer 33, provided with a groove or slot and the said combustible material being of a very fine form, by its own gravity fills the said slot. This is effected each time the piston travels a full revolution upward, and while at the downward rotation the combustible drops out and through outlet 34 it falls into a carrier comprising one or more receptacles 35. I have not described in detail the said distributer, because it is an old method and can be modified to meet various requirements, and I do not limit the invention to such construction.

As the drawing illustrates the receptacles 35 are clamped to arms 36 of the bracket 37 the latter being keyed on a shaft 38, the said receptacles can be made of any suitable material that will stand a high temperature, .such as porcelain. In order to effect an into provide for a momentary stop of the same each time they are revolved to outlet 34, I provide suitable cams which I will now disclose. As plainly shown in Figs. 1 to 3 a gear-wheel 24 drives a gear 40 which is fastened on to a shaft 41. a cam 39 is also secured to the said shaft, said cam meshing with a mate 39 Each of the cams is provided with four teeth, but should it be desired to have a less number of receptacles, then in such a case the number of teeth in the said cams should be varied accordingly. The interval of rest of the receptacles referred to, can be best determined by the pitch and shape of the teeth 39 and 39 of the said cams. The gear 40 which is secured on shaft 41, whenever it is put in motion, by the meshing of the cams, drives a gearand also drives a gear 42, a bevel-gear 42 is secured on to the said gear meshing with a bevel-gear 43 and the latter being secured to a shaft 44, which is supported by a bearing 45. As illustrated a pulley 46 is fastened on the shaft 44 and by means of a belt 47 connects with a pulley 48, the latter putting in motion the piston already referred to, and a pulley 49, is connected by means of a belt 50 with a pulley 51 which revolves the so called agitator 32, while a pulley 52 by means of a belt 53 rotates another pulley 54, which connects with another agitator partly shown.

As far as the invention is concerned, I do not confine myself to the connections which I have just described, but however, if the said belts should be found to slip and to not effect a rotation of the mechanism already referred to, sprockets and endless chains can be easily substituted. The ratio of the described gearing is, one to four, that is: each time the bevel-gear 42 is revolved onequarter of a revolution by the gear 42, bevel-gear 43 being a one-quarter of the size of the diametral-pitch of the said bevelgear 42, it travels a one full revolution, thus effecting a full rotation of the distributer 33 and agitators.

To make the light more intense, I provide a reflector 55 behind the light, and a lens 56 in front of it, and as shown in Fig. 4, the

be changed in many ways without departing from the principles of the invention. termittent rotation of the receptacles, and

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent 1. In an intermittent searchlight, the combination with a gas flame, of a plurality of receptacles, a feed hopper having a combustible illuminant, means for holding said re ceptacles successively adjacent said feed hopper, means in connection with said feed hopper and independent of said receptacles for feeding a predetermined quantity of the illuminant to each receptacle and arranged So as to prevent the escape of the illuminant from said holder when the receptacle is removed therefrom, said receptacles being arranged to present the lllummant contained therein to said gas flame.

2. In an intermittent Searchlight the combination with a gas flame, of a plurality of Wheel 42 which is fastened on a shaft 38,

receptacles, a bracket supporting said receptacles, means for revolving said bracket and receptacles, a reservoir for combustible illuminant arranged to supply a predetermined amount of the same to the receptacles, and means operatively connected with the bracket controlling the discharge of the illuminant into the said receptacles and means for igniting the illuminant.

3. An apparatus of the kind described, comprising a set of cams, for revolving a plurality of receptacles intermittently, means for dropping predetermined charges of a combustion material into the said receptacles, and means for igniting same.

4. An apparatus of the kind described, comprising cams for intermittently operating a plurality of receptacles connected to a bracket, said cams also actuating a suitable gear drive, the latter operating a mechanism for supplying charges of a combustion compound to the receptacles, said receptacles conveying the material to the flame.

5. In an apparatus of the kind described, comprising a base resting on a sub-base plate, means for laterally revolving the same, a train of gears being connected to the base, revolving a cam, the latter meshing with a mate operating a plurality of receptacles in, connection with a mechanism for controlling the distribution of a combustible illuminant, said illuminant being conveyed into the path of a gas flame.

6. In an apparatus of the kind described, the combination of a sub-base plate, a base plate rotatably mounted on said sub-base plate, means for rotating said base plate, a

bracket rotatably mounted on said base plate 15 flame and means for rotating said recepta- 20 cles into the path of said flame.

ETTORE F. GIANNATTASIO.

Witnesses:

NICHOLAS SMITH, JOSEPH GAROFALO.

copies of this patent may be obtained for five cents each, by addressing the Commissioner of .Patenta. Washington, D. G.

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