Abstract: The operative within a work cab is protected from a polluted atmosphere by provision on the cab of an air pressurizer/conditioner which comprises an air treatment unit and a turbo-fan assembly. The air treatment unit (12) takes the general form of a parallelepipedic box having on one of its front faces a suction orifice 10a extending over the greater part of this face to allow access to the front face of the coarse filter element (15) and to the front face of the fine filter element (16), these said faces being attached mechanically and without a leak to an intermediate leak-proof frame. The turbo-fan assembly (19) is located inside the box downstream of the filter elements (15, 16 and 17) so that the air passes through the said filter elements as a result of suction and is delivered purified into the working cab (11) through a diffuser (24). A pressurizer is provided with a pressurization monitoring device and a toxicity detector (32) for the air forced into the cab.
Abstract: A tape guide for a magnetic tape cartridge and a method of manufacturing same is disclosed. The guide is of synthetic resin and provided with many minute protrusions on its tape-guiding surface to greatly reduce the area of contact between the tape guide and the magnetic tape guided thereby. The protrusions may by produced by utilizing synthetic resin material of a molding contraction ratio of about 0.8% or greater.
Abstract: A clinical analyzer that is microprocessor controlled is disclosed. A shuttle carries a plurality of cuvettes containing liquids to be spectrophotometrically analyzed by a single beam spectrophotometer. The shuttle moves the cuvettes past the spectrophotometer in a plurality of cycles to complete a given test. At the beginning of a test, spectrophotometer lamp energization is controlled to achieve a predetermined spectrophotometer output for a reference filter. The remaining filters are then positioned one-by-one, and amplifier gain is adjusted to achieve optimum spectrophotometer output for each filter. The gain associated with each filter is stored by the microprocessor, and thereafter during the test, when each filter is used, the stored gain associated with that microprocessor is utilized in the amplifier circuitry. Additionally, at the beginning of each cycle of shuttle movement, an air calibration reading is taken, to be used by the microprocessor in determining absorbance.
Abstract: A support for a table top that is positioned upon a pedestal, to prevent tilting of the table top. A pin-holding plate, secured to the underside of the table top, includes a plurality of pins attached thereto which extend downwardly and which are slidably positioned within corresponding sleeves held by a plate positioned within a recess in the top of a pedestal.
September 30, 1982
Date of Patent:
November 13, 1984
Knoll International, Inc.
Hyman L. Zelkowitz, Jeffrey D. Crawford, Lucia Mercer
Abstract: A thermoelectric element wherein connecting members for effecting electrical connection and mechanical engagement are attached securely to the cold-end portion of a thermoelectric elemental body consisting of a p-type semiconductor and an n-type semiconductor joined with each other to form a pn junction therebetween. A support member surrounds the end portion.
Abstract: An artificial-flower-forming ribbon having an overlapped pair of strips and strings placed longitudinally in the middle of strips and therebetween. One end of the string is joined to those of the strips, and both strips are adhered to each other at a plurality of line areas spaced apart in the longitudinal direction of the strips so as to permit relative movements of the strips and the strings. The line areas are inclined with respect to the widthwise direction of the strips, the inclinations being alternately reverse.
Abstract: Oil mist detecting apparatus comprises a measuring chamber which receives air, and oil mist if present, from an engine compartment. The apparatus includes a radiation source which emits light into the measuring chamber, and the radiation sensor which is so disposed as to receive light scattered by oil mist in the chamber. A second radiation source is preferably provided for testing purposes, the second source being arranged to emit radiation directly to the sensor.
Abstract: A noise filter and terminal structure therefor are disclosed. An insulator case composed of a case main body and a cap are utilized, with the case main body including coil fixing projections and capacitor position restricting ribs. A plurality of metallic terminals provide electrical connections to the electrical components within the insulator case and extend out of that case between adjacent edges of the case main body and cap. The metallic terminals are generally flat, with a generally U-shaped bent portion and a connection part extending from the bent portion. The bent portion is fitted into a corresponding concave part in the case main body. The connection part includes hook-shaped projections adapted to hold a wire, and the projections of all terminals are at generally the same level to facilitate automatic soldering.
Abstract: A screw-extruder for shaped food pastes such as spaghetti is removably mounted on a base containing a prime mover. To ensure the safety of the assembly an activator is associated with the cylinder housing the screw and can only actuate a switch in the base when the cylinder is correctly positioned. The actuator may take the form of a manually operable pushbutton on the cylinder, or a lever acted on by the cylinder and acting as a mechanical interlock with a pushbutton and permitting its operation only when predetermined conditions are satisfied. In each case the pushbutton will only act to permit operation of the motor when it is properly positioned relative to a switch in the base.
Abstract: An assembly for damping sea waves that constitutes a floating breakwater for protecting a sea wall. A plurality of vertical pilings extend into the sea bed and are spaced apart from each other and extend parallel to the sea wall. Automobile tires are positioned about the pilings and are supported by a platform made of struts on opposite sides of the pilings that extend parallel to the sea wall, with transverse stringers maintaining the struts in parallel and spaced relationship and also free to move vertically with respect to the pilings. The combined buoyancy of the tires and platform is such that the top surfaces of the tires are positioned substantially at the surface of the sea. A support beam structure is attached to the pilings generally along the tops thereof and interconnects the pilings, together with rigid tieback members that connect the pilings to the sea wall, all to aid in maintaining the pilings in vertical and spaced-apart relationship.
Abstract: Prefabricated concrete component to be employed in the construction of walls poured in the ground. It has a sheet (2) of impermeable material that at least partly covers the excavation side (6) of the wall, which is to be left uncovered after the wall has been poured, that has at least one face that forms the excavation-side face of the panel while the other side has projections (3) cast into the concrete (1) that makes up the panel, and that can be attached impermeably to the sheet on an adjacent panel.
Abstract: An apparatus and method for upholstering a rigid chair shell is disclosed. A continuous, generally C-shaped track is utilized about the peripheral edge of the shell, opening rearwardly thereof to receive a retaining element attached about the peripheral edge of the covering material. The retaining element is constructed from a strip of tubular flexible material with an integral flap member circumferentially overlying at least part of the tubular strip and accepting the track edge therebetween. The inside surface of the outer end of the flap member is attached to the inside surface of the edge of the cover or fabric and, after suitable cushioning is attached to the front surface of the shell, the covering is placed over the cushioning and rolled about the retaining element which is snapped into the C-shaped track around the periphery of the shell to hold the covering thereon.