摘要:
Method of making an examination of a specimen by use of a microscope comprises during a first session, conducting a microscopic examination of a specimen by manipulation of the specimen stage while video recording the examination and during a subsequent session, replaying the recording to produce a video image, and manipulating the stage with reference to the video image so that the image observed by use of the microscope is substantially the same as the video image.
摘要:
A method of simultaneously recording a signal indicative of dynamic digital data, and signals comprising the analog voice and video picture data of a television signal is disclosed. The dynamic digital data is encoded into a signal at audio frequencies between a lower threshold frequency and an upper threshold frequency. The analog audio signal is filtered to remove frequencies between the lower threshold frequency and the upper threshold frequency. The encoded digital data signal and the filtered analog audio signal are combined into a single analog audio signal. The combined audio signal and the video signal are video recorded into a television signal.
摘要:
A combination bullet seating and factory crimp die includes a collet closing die, a crimping collet, a die cap, a seating lock, a bullet depth adjustment screw and a trigger. The crimping collet is inserted into the collet closing die. The trigger is placed in the collet closing die. The bullet depth adjustment screw is threaded into the seating lock. The seating lock is inserted into the die cap. The seating lock includes a sear groove for receiving a C-ring sear. The collet closing die is threaded into the die cap. A bullet seater is retained in the seating lock. In use, a bullet on a mouth of a cartridge case is pushed into the crimping collet. The bullet seater seats the bullet. The trigger pushes the C-ring sear into the sear groove, which allows the mouth of the cartridge to be crimped without moving the bullet.
摘要:
A device for feeding bullets to an ammunition reloading press. A bullet guide member in the device has a vertical bore for allowing bullets to descend by gravity from a stack of bullets in a storage tube one at a time to a small platform. A feeder body is mounted for reciprocating vertically on the guide member and a shuttle is mounted for sliding horizontally relative to the feeder body between a retracted position on the body to a fully advanced position where the bullet picked up from the platform by grippers on the shuttle is aligned with a bullet seating tool and with an ammunition case that is moving upward with the ram of the press. Continuing upward movement of the ram causes the case to be pushed slightly onto the bullet and ultimately the mechanism that moves the shuttle out an in, the feeder body and shuttle rise so the bullet begins to enter the seating die. Continued upward movement of the ram causes the mouth of the bullet seating die to spread the gripping means apart so the bullet and case can continue freely into the die in which the bullet is seated. Reversal of the ram into a descending mode causes lowering of the shuttle and body of the shuttle can retract again for gripping a bullet which has settled on the platform when the shuttle was advancing.
摘要:
A battery warmer for a vehicle mounted storage battery comprises a resistance heater for warming the battery and a combination power supply within a single electrically insulated enclosure passing a dc current to the battery terminals and controlling the ac power to limit the temperature of the resistance heater.
摘要:
This invention relates to improved hydrocarbon lubricating oil compositions. More particularly this invention relates to hydrocarbon oil compositions which possess improved oxidation inhibition properties through the presence of a new additive functioning as an antioxidant or as an antioxidant catalyst which acts as a chain terminating species for oxidation reactions.
摘要:
A powder measuring device for use in connection with reloading cartridges has a powder transfer member supported for translating or, alternatively, rotating between a position where at least one cavity in the member is filled with powder from a hopper to another position wherein the powder is discharged through a tube to an empty cartridge. A cartridge to be reloaded is driven upwardly by a manually operated ram. The force for actuating the mechanism that drives the transport member is transmitted through the cartridge which means that unless a cartridge is positioned on the ram for receiving the powder the transport member will not be moved in response to operation of the ram and unintended discharge of powder will be prevented.
摘要:
Novel zinc N,N'-alkenylsuccinoyl dipyridyl succinate is prepared by the novel reaction between an alkenylsuccinic anhydride, pyridine and zinc catalyzed by zinc chloride in pyridine reaction solvent. The novel zinc salt is useful to inhibit oxidation of hydrocarbon distillates and lubricant oils.
摘要:
Ortho-quinones with alkyl, olefin polymer, or halogen substituents and a process for the preparation of these compounds comprising a base catalyzed halogen oxidation of alkylated phenol.
摘要:
An ammunition loader has hoppers for shot and/or powder, and a slideable charge bar for metering shot and powder from the hoppers to the shell. Metering bushings are selectively disposed in the charge bar. A leakage opening in the side wall of the charge bar communicates with the outside of the assembly. The opening is blocked when a bushing is in place, but permits shot or powder to spill therethrough if no bushing is present. The bushings have exposed volume indicating indicia thereon.