In an artificial horizon gyroscope, pitch information is transmitted from the gyro rotor pitch axis by means of a belt-and-pulley arrangement and a pin-and-slot connection to the display or indicating dial. A drive wheel carries the pin which engageably rides in the slot in a pitch arm extending through a pivot axis member to the indicating dial.

An improvement in panel-mounted gyroscopic attitude indicators for aircraft of the type having a generally spherical indicating element on which a horizon line divides the element into upper sky and lower ground portions. The indicating sphere is supported in an instrument housing with full roll freedom by a roll gimbal yoke directly attached to and driven in roll by a forward enlarged trunion of the full closed roll gimbal of a vertical gyroscope. The sphere is driven in pitch by a pulley and b...

An acupressure treatment device including a custom made ear mold having precisely located acupuncture nodules fixed thereto for depressing points on the ear which control or act upon the known auricular acupuncture points.

This invention provides a class of nicotine analogs which as therapeutic agents exhibit tranquilizing effects in mammals. Illustrative of an invention nicotine analog is 3-[N-methyl-N-(3-aminopropyl)]aminomethylpyridine ##STR1## the nicotine analogs can exist in the form of acid addition salts.

A printing machine adapted to print an image on a plurality of different predefined sized sheets, including: means for selecting a sheet of a predefined size to be imaged; means for recording image; means for developing the image; means for transferring the image on the sheet; and a fuser for fusing the image onto the sheet, the fuser includes an endless belt having a plurality of predefined sized fusing areas being selectively activatable, and wherein the plurality of predefined sized fusing ar...

An in-wall mounted electrical actuation device is covered by a surface mountable cover plate. The cover plate provides a planar surface having a linear groove in it preferably extensive over a full length of the cover plate. Within the linear groove is an aperture. An actuator strip is slidably engaged within the linear groove, The linear strip provides a strip planar surface contiguous with the plate planar surface for thereby presenting a common planar outwardly facing surface. Inwardly protru...

A device which prevents bleeding through needle puncture wounds by applying pressure to the wound through an elastomeric appliance having a blunt skin abutting surface held in place over the wound by securing straps. The pressure applied by the device is sufficient only to prevent bleeding through the wound and does not impede the subsurface flow of blood.

The lower end of a wellbore tubing string or a change in diameter of a wellbore component may be sensed by an apparatus connectable to the end of an elongated coilable tubing for insertion into the tubing string and responsive to movement of the apparatus into or out of the end of the tubing string to effect a change in flow of fluid being conducted through the coilable tubing. The apparatus includes opposed arms engageable with the bore of the tubing string and engageable with a piston member t...

A frequency demodulation circuit superposes pulses on an input frequency-modulated (FM) signal at substantially the peaks of the FM signal before demodulating the FM signal so that zero cross points of the FM signal can be correctly restored. A peak detection circuit detects peaks of the FM signal or peaks of the fundamental wave of the FM signal, which substantially correspond to the peaks of the FM signal. A pulse generating circuit generates, from the peak detection result, pulses respectivel...

A steam boiler or analogous heat exchanger is provided with a gas-fired burner comprising a plenum chamber from which a combustible gas-air mixture escapes through an inexpensive and readily replaceable burner member formed of foraminous ceramic material. The porosity and thermal conductivity of the burner member are such as to produce substantially flameless combustion toward the outer surface of the burner member, which causes that surface to incandesce and to radiate heat directly to water-fi...