US1595993A

US1595993A - Automatic machine gun

Info

Publication number: US1595993A
Application number: US35215A
Authority: US
Inventors: Ralph S Cecero
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-06-05
Filing date: 1925-06-05
Publication date: 1926-08-17
Anticipated expiration: 1943-08-17

Description

Aug. 17 1926.

' R. s. CECERO AUTOMATIC MACHINE GUN Filed June 5' 1925 2 Sheets-Shawl 1 gwveufoz R. S, ve 0 Aim; 17,1926. v

R. S. CECERQ AUTOMATIC MACHINE mm 2 Sheets-Sheet 2 Filed June 5, 1925 I jnumtoz R. Siwm Patented Aug. 17, 1926.

UNITED ST'lLEn RALPH S. CECERO, OF WATEBB'URY, CONNECTICUT.

This invention relates to an automatic machine gun and particularly to machine gun operating mechanism for use on aeroplanes, although adapted for use in field servuc.

The particular object of the invention, when applied to aeroplane use is to provide a mechanism, entirely automatic in its operation whereby the gun may be fired between the blades of the propeller during flight of the craft. A further object is to provide a mechanism, entirely controlled by the propeller for determining the timing of the firing. A further object is to provide a simple motor operating mechanism, associated with the machine gun trigger, for positively operating said trigger to fire the gun. A further feature is the provision of mechanism which may be dispensed with when hand operation of the gun is desired, and without alteration or change of apparatus.

A. further object is to provide an auto matic machine gun operating mechanism, adapted for field as well as aeroplane serv ice, and capable of being operated and controlled by a gunner at any distance from the machine.

Vith these and other objects in view, my invention consists in the novel features of construction, combination and arrangement of parts as will be hereinafter referred to and more particularly pointed out in the specification and claims.

In the accompanying drawings Figure 1 is a diagrammatic view of the invention;

Fig. 2 is a front view of a propeller, showing its relation to a machine gun. the dotted line position of the propeller indicating its position when the gun is fired;

Figure 3 is an enlarged side view showing the gun trigger operating means;

Figure 4: is a View at right angles to Figure 3; and

Figure 5 is a diagramatic view of a modification of the use of the invention.

Referring now more specifically to the accompanying drawings by numerals of reference, l designates generally a conventional form of machine gun, shown unmounted, for sake of clearness, the trigger being indicated at 2 in dotted lines. Arranged upon a base 3, in proximity to the machine gun 2 is an electric motor 4., preferably of low horsepower, the shaft 5 of which motor, lies AUTOMATIC MACHINE eon.

Application filed June 5, 1925.

Serial No. 35,215.

transversely to the stock of the gun and carries a trigger operating arm 6, which is in the nature of a. crank, the trigger engaging finger 7 being so arranged, that in its orbital path, it will engage the trigger 2, once in every cycle, and fire the gun.

Since this gun operating mechanism is adapted for both aeroplane and field use, I will just describe its construction with its its relation to an aeroplane. When used with the latter, the propeller 8, itself generally of conventional construction, is provided with a contact bar 9, the arms 10 of which are diametrically opposed and carried by the propeller blades, although preterably insulated therefrom.

Suitably supported upon a portion or". the forward portion or" the motor frame, in proximity to the propeller, and arranged in the plane of rotation thereof, are a pair of arcuate contact plates 11, the plates being disposed on diametrically opposite sides of he propeller shaft, and concentric with the axis thereof. In operation, in every revolution of the propeller, for period. depend ent upon the length of the contact plates 11, the contact bar 9 will bridge the latter, and complete the circuit through conductors 12, battery 14, switch 15, and the electric motor l, causing the latter to be energized, and causing the trigger engaging finger 7 to be rotated into contact with the trigger 2, thus firing the gun, at a period when the blades of the propeller are out of the path of the projectile.

hen employed for field service, the motor a, carrying the trigger actuating arm 6, is included in a circuit 16 in which a generator 17 is employed for supplying the energy to the said motor, a switch 18 serving to open and close the circuit when necessary. The present invention is particularly advantageous for field service, since ifthe machine gun may be operated automatically and at will from any .distance.

From the foregoing description of the construction of my improved apparatus, it will be seen that I have provided a simple, inexpensive and efiicient means for carrying out the objects of the invention, and while I have particularly described the elements best adapted to perform the functions set forth. it is obvious that various changes in form, proportion, and in the mi nor details of construction may be resorted to, Without departing from the spirit or sacrificing any of the principles of the invention.

Having described my invention, What I claim as new is Apparatus for working the trigger of a manually movable gun comprising a driven shaft having spaced blades mounted thereon, a circuit closer mounted upon the shaft and having end portions radially disposed with relation to the axis of the shaft and disposed parallel with the lengths of the blades, contact members disposed at opposite sides of the shaft and disposed in the path of movement of the end portions of the circuit closer, an electric generator, a motor, a trigger Working arm carried by the shaft of the motor and conductors connecting the generator, the motor and the contacts in open circuit.

In testimony whereof I affix my signature.

RALPH S. CECERO.