Abstract: A ladder which can be ascended and descended at either of two rates and which comprises an array of half treads on one side of a stringer and an array of full treads on the opposite side of the stringer, each array being vertically spaced from the other along the length of the stringer. Treads are affixed to and extend from respective sides of the stringer, and at least one of the arrays includes outwardly extending portions affixed to a handrail.

Abstract: A multiple link transmission chain composed of interconnected identical links, having identical ends which are angularly disposed with respect to each other by 90 degrees in relation to the longitudinal axis.

Abstract: A temperature or pressure gauge capable of providing a magnified output indication of a respective sensed temperature or pressure of a fluid. Overlapping surfaces are movable relative to one another in response to sensed changes in temperature or pressure of a fluid. Each surface is provided with an aperture, a light controlling edge, or an indicator which overlaps and intersects at an acute angle a respective aperture, edge or indicator on the other surface. Rotary motion or other motion induced by the sensing element is translated into linear movement of the point of intersection of the two apertures, edges or indicators, the linear movement being greater in magnitude than the movement of the sensing element. This gauge is suitable for strip chart recording, for visual observation or for electrooptical reading.

Abstract: A chain link conveyor comprises modules made of an organic plastic material and pivotably connected to one another. Each module is designed to be extruded as a slab and machined to form a module comprising intermediate sections, reinforcing center sections and a number of parallel spaced link end sections having aligned holes for receiving pivot rods. The module also includes a specially designed rib adapted to interact with suitable drive means of a conveyor system.

Abstract: A floor mounted air conditioner comprising a housing containing cylindrical condenser coils disposed about a normally vertical axis and cylindrical evaporator coils coaxially disposed above the condenser coils. A drip pan separates the condenser and evaporator coils and includes openings for discharging condensate onto the condenser coils for evaporation. A condenser fan is associated with a bottom duct adapted for installation in a mounting opening in the floor of a room, for blowing hot air through the mounting opening, and an evaporator fan is associated with a top duct for blowing cool air into the room being cooled.

Abstract: A ladder is provided which is especially adapted for shipboard use and which is safe and comfortable to use, of relatively light weight and occupying relatively small floor and overhead space. The ladder comprises a single stringer disposed between upper and lower deck or floor levels at a predetermined angle of inclination, and having an array of half treads on each side of the stringer, each array being vertically spaced from the other along the length of the stringer. The half treads are affixed to and extend from the respective sides of the stringer and each include an integral outwardly extending portion which terminates in a plane forward of a plane passing through the front edges of the treads. Handrails are disposed in this forward plane and are affixed to and supported by the outwardly extending tread portions.

Abstract: A conveyor system for the transport of a product over a long travel path within a relatively small volume. A bi-directionally movable conveyor belt is disposed in a closed multiple loop path about at least one driving shaft having a number of sprockets therein each in driving engagement with a respective loop of the belt, and at least one idler shaft also having a number of sprockets, each in engagement with a respective loop of the belt. A travel path of substantial total length is provided within a small volume for movement of a product through the volume which can contain a controlled environment.

Abstract: A conveyor belt comprising a plurality of like modules each module including a plurality of links having an upper conveying surface and providing axial passageways into which the teeth of a conveyor comb extend. A plurality of dogs are integrally formed with the links of each module upwardly extending above the conveying surface and disposed along a transverse axis of the modules.

Abstract: The present disclosure is directed to a modular conveyor belt made from extruded flexible links which may be either of plastic or metal having ends joinable into an endless belt by an extruded substantially rigid jointing member which also cooperates with a notched sprocket to form a drive member for the belt. Due to their formation by extrusion the top surface of the links may be formed with flights of different geometric form for performing a multiplicity of conveying tasks. The particular geometry of the extruded modular link anchoring connectors and the complemental shape of the extruded substantially rigid jointing and drive member permits links to be assembled into an endless belt by merely sliding the jointing and drive member transversely across the ends of a pair of back to back flexible links.

Abstract: A torque meter for a rotating or stationary shaft and capable of providing a visual or electrical output indication of applied torque. An aperture is provided with respect to which a shaft is rotatable, the aperture being angled with respect to an axial marker on the shaft. In the presence of an applied torque to the shaft, the marker moves axially by an amount which is magnified in relation to the amount of twist and sensible through the aperture to produce an indication of the amount of applied torque.

Abstract: A conveyor belt comprising a plurality of like modules on each end of which are an array of link ends. The link ends are of a width substantially less than the spacing between confronting link ends along their pivotal axis. The link ends of each module are pivotally connected to the link ends of adjacent modules by a pivot pin. The pivotally connected modules can be laterally flexed or movable along the pivot axis for exposure to visual inspection of the normally concealed portions of the pivot pins.

Abstract: A modular conveyor comprising a plurality of interconnected modules each module having a receptacle integral therewith and in which each module is pivotable about both a horizontal and a vertical axis. The module receptacles are in a closed position during conveyor movement along a straight path or through horizontal turns, while during movement of the conveyor through a vertical turn, the receptacles are in an open position for dispensing or releasing of a product contained therein.

Abstract: A conveyor composed of a plurality of identical interconnected modular links and movable through straight and multiply curved travel paths. Each link is pivotally connected to adjacent links for relative pivotal movement about a first axis. Each modular link is composed of two sections which are pivotally joined for relative pivotal movement of the sections about a second axis orthogonal to the first axis. Sprocket teeth are integrally formed with the modular links along for cooperation with vertical or horizontal sprocket wheels for transport of the conveyor in either plane. The upper surface of the modular links defines a conveying surface and may include a spaced array of upstanding ribs.

Abstract: A reinforced, pneumatic tire and method of manufacture in which the tire body is formed in at least two sections each including a side wall and a plurality of annular bands each including an annular reinforcing belt embedded in an elastomer. The tire sections are assembled in a mold with the annular bands of each section interleaved with the annular bands of another section and the elastomer is cured to form an integral tire body. The tire may be formed of two reinforced sections with the interleaved bands forming the annular tread section of the tires, or as three reinforced sections, including two sections each including a side wall and annular bands and a connecting section including annular bands with reinforcing belts which are interleaved with the annular bands of the other two sections to form a tread section. An annular, elastomeric tread section may be formed separately and bonded around and to the annular bands of the reinforced sections.

Abstract: A link chain useful for transmission and conveyor purposes in which the links are interconnected by flexible strip members which accommodate relative angular movement of each link with respect to the strip members and links without need for pivot pins and without frictional movement between adjacent links.

Abstract: The present disclosure is directed to a non-pivotal modular conveyor belt and modular links therefor wherein a belt is made up of modules interfitted and joined by a non-pivotal connection passing laterally through adjacent interfit modules at their ends and wherein the module has a flexible member joining a pair of link ends. When assembled with the non-pivotal connection through the interlocked link ends with the adjacent flexible members in abutting relationship the point of abutment of the flexible members may be fused so that there is no open joint into which foreign matter may enter requiring cleaning.

Abstract: Apparatus for borehole surveying employing remote reading electro-optical sensors for providing digital signals represenatative of azimuth and multi-axis inclination for direct transmission to the surface for recording or use.

Abstract: A magnetic compass in which the compass magnet is an electromagnet energized only when in a horizontal disposition to provide a correct heading indication without error due to tilting of the compass magnet.

Abstract: A sprocket drive assembly designed for a modular chain link conveyor belt subject to relatively large variations in width due to changing ambient conditions such as large cyclic temperature changes. The assembly includes a drive shaft with a square cross section and a plurality of sprockets mounted on the shaft for rotation thereby. One sprocket is fixed against axial movement to provide for proper belt tracking while the remaining sprockets, the number depending upon the width of the belt and the load carried thereby, are located on opposite sides of the fixed sprocket and are free to move axially to accommodate for changes in belt width.