A system and method for monitoring the output of a laser is provided in which the output of a photodiode disposed in the cavity of the laser is used to provide a correlated indication of the laser power. The photodiode is disposed out of the laser beam to view the extraneous light generated in the laser cavity whose intensity has been found to be a direct correlation of the laser beam output power level. Further, the system provides means for monitoring the phase of the laser output beam relative to a modulated control signal through the photodiode monitor.

A system and method for monitoring the output of a laser is provided in which the output of a photodiode disposed in the cavity of the laser is used to provide a correlated indication of the laser power. The photodiode is disposed out of the laser beam to view the extraneous light generated in the laser cavity whose intensity has been found to be a direct correlation of the laser beam output power level. Further, the system provides means for monitoring the phase of the laser output beam relative to a modulated control signal through the photodiode monitor.

An apparatus and method for injecting a substance, such as a radiopharmaceutical, into the bloodstream of a subject is described. The apparatus comprises an injection means, such as a servo controlled syringe, a means for measuring the concentration of that substance in the subject's bloodstream, and means for controlling the injection in response to the measurement so that the concentration of the substance follows a predetermined function of time. The apparatus of the subject invention functions to inject a substance into a subject's bloodstream at a rate controlled by an error signal proportional to the difference between the concentration of the substance in the subject's bloodstream and the predetermined function.

Super-smooth rounded or formed articles made of thermoplastic materials including various poly(methyl methacrylate) or acrylonitrile-butadiene-styrene copolymers are produced by immersing the articles into a bath, the composition of which is slowly changed with time. The starting composition of the bath is made up of at least one solvent for the polymer and a diluent made up of at least one nonsolvent for the polymer and optional materials which are soluble in the bath. The resulting extremely smooth articles are useful as mandrels for laser fusion and should be useful for a wide variety of other purposes, for example lenses.

Certificate registering a trade-mark for "Helen Corbitt's" written in stylized text, in force from 1951-1971. It includes the official certificate and the application text explaining how the mark has been used.

Patent for an improved means of fastening slats to belts without the use of rivets or other fasteners.

Patent for bell and spigot concrete pipes with a slip joint. This eliminates the potential for wear of the slipping joints, thus mimicking a metal pipe.

Patent for a numbering indicator used to mark the status of stored batteries.

Patent for new and useful improvements in attachments for Sawmill-Dogs. This invention relates to sawmill dogs, and has for its primary object to provide a simple and efficient device for retaining the actuating lever of a lever mechanism in adjusted position.

Patent for an air suctioning instrument that exterminates boll-weevil and other insects that infest cotton crops. Illustrations included.

Patent for a clutch and transmission device for automobiles that "is simple, compact and inexpensive in construction, and which is thoroughly practical, reliable and efficient in use." (lines 31-33), including illustrations.

Patent for improvements in convertible tables and ironing boards. Where a freestanding table can be converted readily into an ironing board.

Patent for a cotton threshing machine with wheels designed to be constructed in the cotton field and easily moved to different parts of the field.

Patent for a water shoe which is made of a woven mesh-work portion made of braided threads of rectangular cross section.

Patent for a crate that may be sealed both when erected and when folded by a common fastening member.

Patent for a locomotive brake shoe that is "capable of being economically manufactured in a small foundry without the installation of special and elaborate machinery, whereby they may be produced in various repair shops local to different railroad centers" (lines 15-20), including illustrations.

Patent for an invention relating to detachable flanges found in locomotive driving boxes. Benefits and objectives are explained and illustrations are included.

Patent for improvements on money-changing machines to include multiple coin holding tubes and require the user to push only one key lever for change.

Patent for an invention that improves mote boards for cotton gins by causing the "impurities and dust thrown off by the centrifugal action of the brush to be conducted away by a dust passage" (lines 19-22).

Patent for a nut cracker designed especially with pecans in mind. It crushes the pecan shell without damaging the kernel inside.

Patent for a "simple mechanism for use in connection with a prime mover of any of the well known types using as a motive agent steam, oil, gas, electricity, etc." (lines 13-16). The mechanism is meant to increase efficiency by reducing the number of its components.

Patent for a rail joint designed to prevent "longitudinal and lateral movements of the rails" (lines 14-15) as well as creeping by means of a new form of fish plate.

Patent for rotary disk drills with an illustration included. This drill is meant to be "efficient and strong and so arranged as to be inexpensive of manufacture and easily kept in serviceable condition." (lines 18-23)

Patent for a reinforced concrete silo, including specifications and illustrations.