US2182336A

US2182336A - Automatic lighter and display device

Info

Publication number: US2182336A
Application number: US107374A
Authority: US
Inventors: Goldstine Hallan Eugene
Original assignee: RCA Corp
Current assignee: RCA Corp
Priority date: 1936-10-24
Filing date: 1936-10-24
Publication date: 1939-12-05
Anticipated expiration: 1956-12-05

Description

Dec. 5, 1939. H. E. GOLDSTINE AUTOMATIC LIGHTER AND DISPLAY DEVICE Filed Oct. 24, 1936 2 Sheets-Sheet 1 INVENTOR. HALLAN GOLDSTINE ATTORNEY.

Deg 5, 1939. H. E. GOLDSTINE v 2,182,336

AUTOMATIC LIGHTER AND DISPLAY DEVICE Filed Oct. 24. 1936 Y 2 Sheets-Sheet 2 INVENTOR.

HALLAN GOLDSTINE BY 7% XMW ATTORNEY.

Patented Dec. 5, 1939 PATENT OFFICE AUTOMATIC LIGHTER AND DISPLAY DEVICE Hallan Eugene Goldstine, Rocky Point, N. Y., assignor to Radio Corporation of America, a corporation of Delaware Application October 24, 1936, Serial No. 107,374

4 Claims.

This invention relates to a new and novel automatic lighter and display device.

The invention is particularly directed to the art of using electric discharge tubes as a relay device and deals especially with applying this principle to a novel lighter.

An object of this invention is to simplify and improve automatic lighters such as those employed for lighting cigars and cigarettes.

Another object of this invention is to provide a relatively novel automatic lighter which is capable of instantaneous lighting although only a relatively small current is broken by the con tacting elements.

Another object of this invention is to provide an automatic lighter which is capable of continuous intermittent use and requires a minimum amount of servicing.

Still another object of this invention is to provide a simple improved lighter having no contact elements which are broken, the heater circuit being controlled by body capacity.

A feature of this invention is the improved arrangement whereby a very slight pressure of the object to be ignited such as a cigar or cigarette, against the heating element causes it to instantly heat.

Another feature of this invention is the arrangement whereby at the same time the heating element is caused to heat there is also flashed a display or advertising sign.

Still another feature of this invention is that the device as arranged fulfills both the purposes of a lighter and an advertising device and is arranged to attract the customers attention and arouse his curiosity as to the control member, itself. The electrical circuit of the device is arranged so that when the heating arrangement heats the sign will be illuminated, the tube giving off its characteristic glow which is a noteworthy advertising feature.

Although automatic lighters are old in the art, such devices generally required the break- The contacts are arranged in the circuit so that a display sign flashes on and off when the heating element is on.

This invention will be more completely understood by referring to the accompanying drawings, in which:

Fig. 1 is a front view of the automatic lighter and display device;

Fig. 2 is a cross-sectional view of Fig. 1;

Fig. 3 is a circuit diagram of the automatic lighter;

Fig. 4 is a circuit diagram of another modification wherein the heating circuit is controlled by body capacity.

Referring now in detail to Figs. 1 and 2 of the drawings, a metal casing l of any suitable configuration is provided to enclose the necessary apparatus or control elements. Directly in front of the casing l is arranged a space 2 for a suitable display device which may be in the form 01 a transparent or translucent glass having located therein the desired display device or advertising legend 3. In the central upper portion of easing I there is located a small aperture l. Supported within the aperture 4 is a heating element 5 which is pivotally located at a depending portion 6. On the lower portion of heating element 5 a light contact element 7 is arranged; a second contact 8 is located in front of contact i and is supported'on a relatively long light spring member 9 which is secured to a supporting member Ill, preferably of insulating material. Also located on member in is a socket H for an electron discharge device l2 which may be of the type known as a Thyratron. This ther- 35 mionic device acts as a relay tube for controlling the heating current supplying the heating element 5. Lead I3 passes through a small aperture M in the rear of casing l and is electrically connected in series with contacts I and 8 and the secondary of a transformer l5. Lead I3 is insulated by an insulated tube I3A and the plate terminal is insulated by a cap HA. The circuit arrangement of transformer I5 is shown in Fig. 3, the secondary being provided with a suitable 45 tap l6 which also supplies the cathode ll of the Thyratron device I2 and also the bias for. tube 12. A primary I8 is connected to any suitable supply source 20 which is preferably that of an alternating current source. A switch 2| is pro- 5 vided to disconnect the lighter from the circuit when desired. The plate 22 of the electric discharge device I2 is connected in series with a pair of small electric lamps 23. The lights 23 can be connected in parallel as well as in series with 55 the supply, as shown by dotted lines. However, a parallel arrangement of the lamps from the plate of tube |2 to the incoming power line might be found to be a better arrangement, because if one light should fail, the device would still operate. A resistance 24 is connected from one side of the alternating current supply source to maintain the voltage for lamps 23 at a desired value. There is also provided in the circuit a cathode resistance 25 having a mid-tap 2B. In order that the bias of grid 21 may be properly controlled, a suitable biasing resistance 28 is connected in series with the grid 21 and secondary transformer tap l6. I'he secondary of the transformer may be that of the center tap type used as an auto transformer by tapping the primary;

also, the supply-source obtained on the anode of the tube may be either 110 or 220 volts. It will be noted that with the circuit arrangement shown, no direct current bias is required, thus making the device self-contained except for the flexible connecting cord passing through bushing 29, which is adaptedto connect with the external supply source 20.

The operation of this improved automatic lighter and supply device is as follows:

The heating element which is supported by three spring strips which maintain it in a vertical position and also furnish an electric connection by way of contacts and 8. When a cigar or cigarette is pressed across the heating element 5, the contacts I and 8 are broken and a positive bias is then placed on the electron discharge device I2, This positive bias trips the grid and rectified plate current, then flows through the heater element 5 and also through the lamps 23 in the display device 2, the contacts breaking a very relatively small current in the order of five microamperes. The tube is generally non-conductive, that is, when the contacts are closed by keeping a negative bias on the grid at all times. This negative bias is obtained by the drop through the resistance 28, the current of which is supplied through the transformer secondary l5.

In the modification shown by the circuit diagram in Fig. 4, the display device is generally similar in all its features with the exception of the omission of contacts and 8 and in place thereof are two

capacitive electrodes

31 and 38.

The heating current supplying the heater 5 is controlled by body capacity when a person approaches to light his cigar or cigarette, the extra capacity causing the tube to trip, thus heating the element and illuminating the advertising device. An electron discharge device 3| provides a high frequency amplifier of a tuned plate and grid circuit, the plate 32 and grid 33 being shielded from each other. A screen grid 34 prevents feedback through the tube. The Thyratron" tube 35 has a grid 36 which is held at a negative potential when tube 3| is not oscillating. In the grid and plate circuit of tube 3| there is connected the capacitive elements or

electrodes

31 and 33 which are suitably arranged on casing I so that when the body capacity 39 of a person who approaches the

lighter intercepts electrodes

31 and 38, feedback occurs between plate 32 and grid 33, thus causing tube 3| to oscillate. This lowers the plate current of tube 3| which in turn lowers the negative bias on the Thyratron tube 35 enough so that the positive bias applied to the secondary 40 of the transformer will cause the tube to conduct. When the extra capacity is removed tube 3| will cease oscillating and tube 35 will then be non-conducting, A small blocking condenser 31A is employed to insulate the plate voltage from the exposed plate. It may be desirable also to work the plate at ground potential for the supply voltage and work the cathode at a negative voltage, so that the plate 21 has only a very low voltage radio frequency impressed on it.

There is also the possibility of using an audio frequency capacity bridge circuit; the unbalance due to body capacity causes a change in the audio voltage, this is amplified, rectified and caused to control the relay tube. Other elements of this circuit are transformer primary 4|, cathode 42, cathode resistance 43, a grid bias battery 44, plate 45, heating element 5, and lamps 23 which are connected in series by the plate 45 and the series resistance 24. The oscillator tube contains grid leak 46 and grid condenser 48, plate 32 having connected in the tuned circuit condenser 49 an inductance 50. The circuit of grid 32 has also a tuned circuit comprising condenser 5| and inductance 52, Screen grid 34 is provided with a resistance 53, the cathode 54 of tube 3| being maintained at a desired positive potential by resistance 55 and a battery supply source 56. The filament 51 of heater 3| is heated by any suitable means, such as a tap on the transformer secondary.

By a slight change in the circuit,

batteries

44 and 56 may be eliminated and the bias potential obtained from the alternating current supply source.

Another circuit arrangement may accomplish the same effect by having the body capacity of the person approaching the lighter vary the neutralizing capacity of an amplifier, thus causing the tube to go in and out of oscillation.

Still another method of control would be to have the cigar or cigarette make or break a light beam which is inserted within the lighter, a photoelectric cell being connected in the circuit so as to cause the relay tube to trip and the heating element would thus be heated and the advertising device flashed.

Another modification would be that of a mechanical relay arranged to be actuated by the plate current of the relay tube if it is desired that a larger amount of power be required than the tube can control.

While only a few modifications of this invention are disclosed, it is to be distinctly understood that it is not to be limited thereto except by such limitations as are imposed in the appended claims.

What is claimed is: 1

1. An automatic lighting device comprising a spherical shaped casing having a small aperture therein, an electric heating element located in the aperture of said casing, means within said casing whereby pressure from the object to be lighted as it passes through said aperture causes said heating element to heat up, an electron discharge device and an alternating current transformer within said casing, said means comprising a pair of contacts connected in series with the control element of said electron discharge device and said alternating current transformer whereby said heating element is heated.

2. An'automatic lighting device comprising a casing having an aperture therein, an electric heating element within said casing and located in said aperture, means within said casing whereby pressure from the object to be lighted as it passes through said aperture causes said heating element to heat up, an electron discharge device and an alternating current transformer within said casing, said means comprising a pair of contacts, at least one of said contacts being secured to said heating element, said contacts being connected in series with the control element of said electron discharge device and said alternating current transformer whereby said heating element is heated.

3. An automatic lighting device comprising a casing, the upper portion of which is spherical in shape, an aperture located in the said spherical portion, a base in the lower part of said spherical portion, an electron discharge device supported from said base, an electric heating element in said aperture, means within said casing whereby pressure from the object to be lighted as it passes through said aperture causes said heating element to heat up, and means comprising a pair of heated and contacts connected in series with the control element of said electron discharge device whereby said heating element is heated.

4. An automatic lighting device comprising a casing, the upper portion of which is spherical in shape, an aperture located in said spherical portion, a base in the lower part of said spherical portion, an electron discharge device supported from said base, an electric display device located below said electron discharge device, an electric heating element in said aperture, means within said casing whereby pressure from the object to be lighted as it passes through said aperture causes said heating element to heat up, and means comprising a pair of contacts connected in series with the control element of said electron discharge device whereby said heating element is also flashes said display device.

HALLAN EUGENE GOIDSTINE.