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Barlow Bomb Patents

Lester P. Barlow applied for a patent on an Aerial Torpedo on 20 May 1916 and was granted US patent #1,322,083 on 18 November 1919. "My invention relates to the general art of the manufacture of torpedoes and torpedo shells of the character adapted to be dropped from aeroplanes or flying machines of any type; and its primary object is the construction of a torpedo or explosive device which will be exploded with certainty at a predetermined distance above the ground or other target. This is accomplished by the provision of a device which assumes or has a position in advance of the explosive head, after the torpedo has been launched, and is operated by contact with the ground or target to fire or propel a bullet or the like rearwardly, into violent contact with the detonator, to explode the latter and thereby, the high explosive carried by the torpedo. Preferably this device takes the form of a gun-barrel carrying a firing or gun hammer mechanism, and a cartridge, which is exploded by the firing mechanism to discharge its bullet upwardly."

Lester P. Barlow applied for a patent on an Aerial Hand Grenade on 17 June 1916 and was granted US patent #1,237,012 on 23 December 1919. "My invention relates to what I may term aerial mortars, that is to say a construction which comprises a barrel, breech and firing mechanism, and a bomb or projectile contained in or carried by the barrel, and adapted to be expelled therefrom, the whole construction being adapted to be dropped from an aeroplane or other flying machine (or with modifications, launched from a gun). The mortar as a whole is intended to fall vertically, or at a desired angle, and embed itself in. the earth pr other object struck. Arrangements are provided such that the mortar as an entirety is brought to rest after entering the earth or object struck a comparatively short distance, after which the bomb or torpedo (or projectile) is expelled upwardly from the outer shell, or barrel, the object being to provide for the explosion of the bomb above the object struck and not, as particularly in the case of striking the earth, within the object struck, with the necessary result of a confined explosion. Accordingly arrangements must be provided for causing the explosion of the bursting charge within the bomb when the latter has risen to a desired distance above the surface of the earth or object struck."

Lester P. Barlow applied for a patent on a Detonator on 30 August 1916 and was granted US patent #1,317,608 on 30 September 1919. "My invention relates to a bomb, torpedo or the like explosive body and is particularly concerned with the arrangement of the detonator therefor prior to the explosion of the detonator and bomb, and the manner of causing the explosion of the detonator within the magazine chamber of the bomb at the proper moment. My invention is in some respects an improvement upon that disclosed in my prior application Mo. 92,093, filed April 19, 1916, detonator for a bomb, torpedo war head or the like. It may also be considered as in some respects an improvement upon the invention disclosed in my application Serial No. 117,578, filed August 30, 1916, and entitled Improvements in Serial mortars. My application Serial No. 92,093 referred to describes a construction in which a detonator is removably supported exterior to the body, or the magazine chamber, of the bomb. By supporting the detonator outside the explosive chamber until after the bomb has been released, or until the proper time for explosion, the danger of a premature explosion of the bomb is largely avoided; the detonator being removed at a struck its mark.

Lester P. Barlow applied for a patent on an Aerial Mortar on 30 August 1916 and was granted US patent #1,235,637 on 07 August 1917. This "... invention relates to what I may term aerial mortars, that is to say a construction which comprises a barrel, breech and firing mechanism, and a bomb or projectile contained in or carried by the barrel, and adapted to be expelled therefrom, the whole construction being adapted to be dropped from an aeroplane or other flying machine (or with modifications, launched from a gun). The mortar as a whole is intended to fall vertically, or at a desired angle, and embed itself in the earth or other object struck. Arrangements are provided such that the mortar as an entirety is brought to rest after entering the earth or object struck a comparatively short distance, after which the bomb or torpedo (or projectile) is expelled upwardly from the outer shell, or barrel, the object being to provide for the explosion of the bomb above the objecft struck and not, as particularly in the case of striking the earth, within the object 30 struck, with the necessary result of a confined explosion.

Lester P. Barlow applied for a patent on an Aerial Hand Grenade on 18 September 1916 and was granted US patent #1,325,776 on 14 August 1917. "My invention relates to aerial explosive devices of the character of what I may term "aerial mortars", that is to say, a construction which comprises a barrel or outer casing which is adapted to be dropped from an aeroplane or other flying machine or projected from a gun; within the barrel or casing is contained an explosive bomb and a device for expelling the bomb from the upper or rear end of the casing after the lower or forward end of the same has struck the earth. The explosive charge within the bomb is exploded shortly after the bomb has left the casing and preferably at a predetermined distance above the casing. This means for exploding the bomb may become effective after either an interval of space, as by mechanical connection between the bomb and the casing, or after an interval of time, as by means of a delayed charge in the bomb, which may be fired when the bomb 65 starts its upward or rearward movement."

Lester P. Barlow applied for a patent on a Detonator on 24 February 1917 and was granted US patent #1,317,609 on 30 September 1919. "My invention relates to improvements in detonators which are especially adapted for use in bombs, torpedoes, or the like, but which may also be used for exploding a charge of explosive material in various other forms of devices. My present invention constitutes an improvement upon the detonator described and claimed in my application Serial No. 117,579, filed August 30, 1916, for improvements in bombs or torpedoes. The detonator there described comprises a solid body carrying the detonating material in a pocket or belt formed on or about its periphery. The detonator described is preferably cylindrical and is adapted to slide down a tube in a bomb, or the like, to the point at which it is exploded, at which point it may be within the magazine chamber of the bomb with the detonating material in alinement with an opening or gap in the tube in which the detonator is mounted. By this arrangement the detonator bridges the gap in the containing tube at the moment of its explosion, and the latter takes place entirely outwardly in the surrounding high explosive material of the magazine chamber. The detonator described also has the advantage, because of its construction, of not breaking into fragments when exploded, so that it is not dangerous in itself if accidentally fired at any time."

Lester P. Barlow applied for a patent on a Contact Bomb on 09 October 1917 and was granted US patent #1,318,956 on 14 October 1919. "My invention relates to bombs or the like explosive bodies, and particularly to that type of bomb which is dropped or launched from an aeroplane and explodes on contact. It is well-known in such structures to maintain the detonator to the rear of the explosive chamber by means of an air-wheel threaded on a rod extending from the rear of the casing. This wheel is rotated by the air when the bomb is dropped to unscrew the same from the rod to permit the detonator to drop into its firing position. Such constructions are open to criticism in that the air-wheel and rod are exposed to the weather and may bind because of rust or other causes. The present application is in large part a continuation of my application Serial No. 195,609, entitled Contact Bombs, filed October 9, 1917. My present invention aims to overcome this difficulty by providing a weatherproof construction in which the detonator is released, after the bomb is launched or dropped, in a certain and efficient manner, which does not depend upon the action of the air. In my improved device, the detonator is normally held or suspended at a safe distance to the rear of the explosive chamber, and means are provided to release the detonator upon the launching of the bomb, which means have a constant tendency, to release the detonator but may be restrained until the launching of the bomb, or which means may be rendered effective upon the launching of the bomb.

Lester P. Barlow applied for a patent on Booster Construction For Explosive Devices on 06 October 1917 and was granted US patent #1,317,610 on 30 September 1919. "My invention relates to an improved booster construction adapted for use in various forms of explosive shell in which the booster charge of explosive material is to be fired by the explosion of a detonator in which the detonator, and is in turn to detonate the main explosive charge of the shell. Also, in the preferred form of my device, the booster frame is so formed as to serve as a diaphragm or closure member for closing the end of the main explosive chamber of the shell, or the booster frame is secured to another member for the purpose of jointly effecting a closure of the explosive chamber. This annular extension of the frame may also be provided with a flange or with other means for securing the same to the casing of the shell, so as to mount the booster in position. This improved device may be used, for example, in drop bombs or the like in which a detonator, normally held at a distance from the explosive chamber, is caused to move into the interior of the booster within the explosive chamber. The object of my invention is to improve the construction of such devices in order that the same may be more economically and efficiently manufactured and assembled and to render the same more effective in operation.

Lester P. Barlow applied for a patent on a Waterproof Drop-Bomb on 27 February 1918 and was granted US patent #1,317,612 on 30 September 1919. "My invention relates to bombs or the like explosive bodies and particularly to that type of bomb which is dropped or launched from an aeroplane and explodes on contact. It is an improvement in certain respects upon the device described in my application Serial Number 195,609 entitled Contact bombs, filed October 9, 1917. It is of the greatest importance that such devices should be entirely water and weather proof. My present invention is directed to the provision of means whereby the openings, through which the slidable detonator suspending pin extends, may be effectively sealed at all times until the bomb is launched. I accomplish this object by placing gaskets of suitable packing material about the pin and in contact with the outer surfaces of to the casing, which wire is withdrawn at the moment the bomb is launched."



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