Abstract: An electrical generator having an Isotopic Heat Capsule including radioactive fuel rod 21 as a primary heat source and Thermoelectric Modules 41 and 43 as converters. The Biological Shield for the Capsule is suspended from Spiders at each end each consisting of pretensioned rods 237 and 239 defining planes at right angles to each other. The Modules are mounted in cups 171 of transition members 173 of a heat rejection Fin Assembly whose fins 195 and 197 extend from both sides of the transition member 173 for effective cooling.

Abstract: 1. Radar apparatus comprising means for generating a series of pulses of oscillation, scanning aerial means for transmitting said pulses as a beam narrow in azimuth in different directions sequentially, the repetition frequency of said pulses being sufficiently high in relation to the angular velocity of the aerial means and the angle of the beam that a plurality of successive transmitted pulses impinge on a point target, a coherent receiver for reflected energy, means for storing returns derived from said receiver in response to a plurality of successive pulses of oscillation from said transmitting means, means for selecting returns corresponding to a predetermined range stored in said storing means, and means for examining selected returns to detect a cyclic component of substantially constant periodicity indicating the presence of a target at said predetermined range having a radial velocity relative to the apparatus represented by said periodicity.

Abstract: An apparatus for generating seismic waves includes an elongated closed tube with a piston in its internal cavity. The piston is carried by a piston rod which extends through the top of the tube, and includes a fuel inlet and exhaust channel. The piston also carries a second tube to define a combustion chamber therein, and a fuel conducting tube extending along the length of the piston rod and beyond the piston to approximately medially within the second tube. When a combustion fuel is introduced to within the combustion chamber and ignited, a force is applied to the piston in one direction and an opposite force is applied to the tube moving the tube with respect to the piston a distance approximately three times the diameter of the piston.

Abstract: In an Omega receiver a phase detection system operative on both rising and falling edges of a hard limited, received Omega signal to compensate for random noise and asymmetries in the hard limited signal.

Abstract: Multistage charged-particle accelerator for operating with accelerating voltages higher than 150 kV, consists essentially of a high-voltage insulator, a source for producing charged particles, a Wehnelt cylinder, an anode and a post-accelerating tube containing stack-wise positioned post-accelerating electrodes. A high vacuum is used for insulating the parts carrying the high voltages, at least one cylindrical screen, surrounding these parts, being interposed between them and the vacuum vessel, which can itself also function as a cylindrical screen.

Abstract: Raised Xerographic printing is produced by the use of thermally intumesced electroscopic powders for the development of the electrophotographic images. Intumescent electroscopic powders are blended with the powdered pigmented "ink" or "Toner" in the ink reservoir of a Xerographic copying machine. The image is formed and transferred to a paper carrier in the wellknown process of Carlson, U.S.P. at No. 2,297,691. The heat used in thermoadhesively attaching the "Toner" to the paper carrier also causes great intumescence of the intumescent powder, resulting in a raised image. The image is similar in appearance and texture to "engraving" or raised thermographic printing. It can be read by the sightless by tactile recognition. The intumescent powder used is made of vinylidene-chloride-acrylonitrile-isobutane as described by the inventor in his Disclosure Document No. 001,078 filed in the U.S. Patent Office on Dec. 22, 1969. Original Application was submitted in raised printing exemplifying this invention.

Abstract: 1.

Abstract: A system for radar station identification depends primarily upon the encoding growing out of a pulse repetition rate of interrogation pulses. To secure the encoding, one or more pulses arm the system and succeeding pulses must be detected during an extremely narrow time of acceptance. Hence, the pulses are logically interpreted in order to reject randomly occurring stray signals.

Abstract: The present invention relates to switches and switch actuating devices to be operated for purposes of arming a bomb or other missile as it is dropped or released from an aircraft. The particular bomb or missile in which this invention is applied is one in which there is a plurality of circuits which are to be armed by the closing of switches upon dropping or releasing of the bomb. The operation of the switches to closed position is normally accomplished by means of a pull-out wire; that is, a wire which is withdrawn from the bomb or missile at the time of release of the bomb, one end of the wire being attached to the aircraft. The conditions to be met are that the arming switches must be positively and surely maintained in open position until the bomb is released and the arming action is effected. The action of the pull-out wire in achieving the arming action must be sure and positive with minimum danger of malfunctioning, jamming or binding.