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| Number | Title | Issue Date |
| 4493275 | Sewing-machine attachment In order to facilitate the stitching of a finding such as a hook or an eye with two or three spaced-apart locations to an underlying fabric, an attachment for a sewing machine with a transversely oscillating needle or work table has a base on which a cros... | 01/15/1985 |
| 4486156 | Concrete pump with buttressed distribution pipe A pump assembly has a hopper adapted to hold a wet concrete mass and having a front wall formed with a front port centered on a front axis perpendicular to the front wall at the front port and a rear wall formed with two rear ports centered on respective ... | 12/04/1984 |
| 4376750 | Method for separating and removing a molded element formed by firing and pyroplastic adhesion of the material from a mold Mold elements, generally composed of clay, are removed from the mold by pressing the body upwardly with a wedging action.... | 03/15/1983 |
| 4366723 | Recirculating-ball drive A recirculating-ball drive has a ball nut centered on an axis and formed with an internal helical groove and receiving a spindle centered on the axis also and rotatable in the nut about the axis. This spindle is formed with an external helical groove of s... | 01/04/1983 |
| 4362062 | Belt-tension gauge A belt-tension gauge for measuring the tension of a belt spanning a pair of wheels, especially a V-belt in the engine compartment of a motor vehicle, comprises two pivotally interconnected housing parts which are biased by a spring spread apart and carry ... | 12/07/1982 |
| 4357039 | Lock bolt for motor-vehicle door latch A motor-vehicle door lock has a lock bolt defining an axis and normally secured to the doorpost. A locking fork normally secured to the door edge can engage this lock bolt to retain the door against the doorpost. The bolt is formed of a rigid axially exte... | 11/02/1982 |
| 4354451 | Device for spray-coating a workpiece with powder particles A booth forming a spraying chamber for workpieces to be coated with powder particles has a substantially fully open front side, giving access to an electrostatic spray gun, and a substantially fully open rear side adjoining a housing of a detachable powde... | 10/19/1982 |
| 4353723 | Pleated filter pack and method of making same A filter pack for the purification of air and gases comprises an undulating sheet of elastic fleece, e.g. one made from polyester fibers, sandwiched between two sets of similarly folded parallel retaining strips interspersed with the undulations of the sh... | 10/12/1982 |
| 4352254 | Cartridge package for rapid loading of a magazine or clip for automatic and semiautomatic weapons A package for cartridges for rapid reloading of bolt-type magazine or clip for a weapon especially for automatic and semiautomatic military weapons, comprises a generally U-shaped frame whose shanks form inwardly open channels receiving opposite ends of t... | 10/05/1982 |
| 4351179 | Manual riveting tool A manual riveting tool for the setting of blind rivets comprises a flat head whose housing carries the chuck which engages the mandrel and at least one pivotable member which is coupled with the chuck by a transmission in the head to draw the mandrel thro... | 09/28/1982 |
| 4349935 | Rug and carpet cleaning apparatus A rug and carpet cleaning apparatus of the type in which a housing is shifted along the floor and is connected to a suction chamber while having rotary brush, carpet-shampoo, massager, and like rotary units which are selectively to act upon the carpet dep... | 09/21/1982 |
| 4347646 | Method and apparatus for sequential portioning of a plastically deformable mass, in particular sausage stuffing A pickup 21 is connected with a portioning element that carries out individual portioning operations between two portioning pauses. By means of a sensor 22 and a counter 29 the actual values of the portioning operation steps are measured and are compared ... | 09/07/1982 |
| 4345623 | Multiport disk valve, especially for dust-remover duct systems A multiport valve for a dust-collection system has a pair of axially spaced seats for two of the ports which can be selectively engaged by a valve member in the form of two oppositely convex shells adapted to bear against one another at their edges. In ad... | 08/24/1982 |
| 4342262 | Carrier missile for ejectable bodies A subcaliber missile to be launched from a barrel, in order to serve as a carrier for satellite missiles of other ejectable bodies, has an envelope divided into two half-shells of tapering configuration which are articulated to the missile bottom and are ... | 08/03/1982 |
| 4338836 | Slicing machine with slice-depositing device A cutting machine, especially for foodstuffs such as wurst, forms slices of the product which are picked up on a cylindrical drum which has retractable pins and which, upon take-up of the slices, deposits them upon a plate by swinging downwardly toward th... | 07/13/1982 |
| 4335966 | Method of preparing concrete mixtures A process for adding water to a concrete mix wherein, after addition of an initial quantity of water to bring a particular concrete mix to or close to a so-called zero consistency, the set point consistency is reached by the one-shot addition of the balan... | 06/22/1982 |
| 4333543 | Wheel or axle load measuring device for road vehicles A measuring plate with at least one strain gauge and upon which a wheel of a vehicle can rest to generate a signal which is used to indicate or register the wheel load or axle load of the road vehicle, is received in a frame and has edges which extend tra... | 06/08/1982 |
| 4327363 | System for transmitting heading information from a compass to several followers A synchro transmitter having a rotor driven by a compass communicates the heading information from that compass to a plurality of loads via respective synchro receivers whose rotors are energized with direct current or carry permanent magnets and whose st... | 04/27/1982 |
| 4325198 | Cartridge load for revolvers A cartridge load for a revolver comprises a plurality of angularly spaced cartridges distributed in a circle, each having a respective casing, powder charge and bullet, with the casings being interconnected at their peripheries by thin flexible ligatures ... | 04/20/1982 |
| 4320576 | Razor knife with self-retracting blade A razor knife has an elongated housing formed of a front housing part and a rear housing part and having a longitudinally extending guide. The rear housing part is backwardly separable from the front housing part and carries a blade holder which has a sea... | 03/23/1982 |
| 4318177 | Method of feeding water to a concrete mix A method of and an apparatus for controlling the water added to concrete batches wherein for a given concrete recipe and batch size, while mixing same, a series of empirical values of water quantity and consistency of the resulting mix are determined by i... | 03/02/1982 |
| 4298362 | Filter cleaning device A device for the groupwise cleaning of filter tubes in a filter assembly in which the tubes are disposed in a plurality of parallel rows with each tube being connected to a rod forming a tube carrier and having a seat upon which a spring bears. The other ... | 11/03/1981 |
| 4290338 | Straddle cartridge for a straddle cartridge anchor The subject invention relates to a straddle cartridge for a straddle cartridge anchor having a central bore which is adjusted to the conicity of the anchor head and wherein the cartridge parts are held together by means of straddle members arranged in suc... | 09/22/1981 |
| 4283863 | Range finder for focusable photographic or cinematographic camera A camera with a focusable objective including an axially shiftable lens member has two ancillary projection systems continuously or intermittently intercepting incident light rays downstream of that lens member and deflecting them onto respective inputs o... | 08/18/1981 |
| 4283851 | Scissor-type shear, especially a cable cutter A shear or like scissor-type tool, especially an electric cable cutter, having two blades at least one of which is movable and a pivot about which this blade moves in a scissor-type action. The device is provided with a mechanism for increasing the pressi... | 08/18/1981 |
| 4281531 | Blind riveter with pneumatic rivet-core disposal A blind riveter has a T-shaped housing whose one T-arm forms a working tip provided with a reciprocal internal chuck, whose other arm is formed as a hollow compartment, and whose central T-leg incorporates a pneumatic cylinder. The cylinder can displace t... | 08/04/1981 |
| 4280585 | Multi-sound speaker system A speaker enclosure with a multiplicity of sound-openings in which the back sound pressure from a plurality of front radiating speaker-units mounted in a vertical row on a baffle board, is completely divided at the back of the speaker-units by a centrally... | 07/28/1981 |
| 4275847 | Process for the treatment of aluminum-salt slags A process for the treatment of an aluminum-salt slag produced in the remelting of aluminum by the addition of salt to aluminum scrap wherein the aluminum salt slag is subjected to pressure and impact rolling to a thickness of about 0.2 mm to about 1 mm an... | 06/30/1981 |
| 4275604 | Device for the leveling of the gyroscopic axis of a compass with a mechanical suspension and an antipendular-torque precession system A gyrocompass with a tilt ring pivotable about a substantially horizontal axis has a U-frame swingable about that axis which forms part of a pendular system and carries a coupling lever engageable with projections on the lower end of the U-frame to immobi... | 06/30/1981 |
| 4274617 | Actuator for core or stripper of a multipart mold A mold has at least two primary mold parts movable in a primary direction away from each other from a closed position defining a mold cavity to an open position, and at least one secondary mold part which may be a core pin or a stripper which is movable i... | 06/23/1981 |
| 4273025 | Belt-advance mechanism for an automatic gas-loading belt-feed weapon, especially a machine gun A belt-advance system for a belt-fed gas-loading automatic weapon, e.g. a machine gun, revises the usual energy flow path by obtaining at its input side a gas-pressure pulse upon the firing of the weapon and providing an energy-storage unit functionally c... | 06/16/1981 |
| 4270033 | Brake-fluid level detector A fluid-level detector comprises a container, here a brake-fluid reservoir for an automotive vehicle, adapted to hold a supply of a fluid and containing a float connected via a link arm to a permanent magnet for displacement of the magnet vertically throu... | 05/26/1981 |
| 4266719 | Track mounting assembly and sound-damping system therefore A rail-mounting assembly in which a rigid member supporting the rail is received with clearance in an opening of an overlying rigid body. The clearance has downwardly and inwardly inclined flanks which bear upon a rubber-metal support damping sound, shock... | 05/12/1981 |
| 4264852 | Follower device with differentiated speeds for gyrocompasses with mechanical suspension A detector responsive to an angular offset between a gyrosphere of a gyrocompass and a tilt ring, forming part of a gimbal mounting therefor, controls a follower motor coupled through a reduction gearing with a suspension shaft for that mounting, the shaf... | 04/28/1981 |
| 4261648 | Pancratic objective An objective of the pancratic type includes a varifocal front lens group and a fixed-focus rear lens group, the latter consisting of five air-spaced singlets. The front lens group is constituted by a positive first component consisting of three singlets, ... | 04/14/1981 |
| 4261225 | Step-down transmission for driving a plurality of extrusion screws A step-down transmission for driving a plurality of extrusion screws from a common power source comprises a main shaft, directly connected with one screw and coupled with the source via a reduction gearing, and one or more pairs of corotating ancillary sh... | 04/14/1981 |
| 4259024 | Device for mixing flowable materials A device for mixing flowable materials, especially relatively viscous liquids and flowable solids, comprises a pipe or tube section, preferably of circular cross section, provided internally with at least one mixing element helically twisted in a uniform ... | 03/31/1981 |
| 4256397 | Photographic shutter A shutter for a photographic instrument comprises a support on which more than two sectors are swingably mounted and a rectilineally shiftable actuating member connected to the sectors for swinging same from a position in which the sectors block an openin... | 03/17/1981 |
| 4254571 | Cartridge load for a revolver A loading device for the rounds or cartridges of a revolver comprises a generally circular array of pockets receiving the individual cartridges and a ring which can be grasped by a finger to draw the loading device away from the cartridges. The unitary de... | 03/10/1981 |
| 4247206 | Screw extruder for the processing of thermoplastic resins and similar materials A screw extruder of the type in which a pair of counter-rotating screws of progressively increasing diameter plasticize and extrude thermoplastic resins and in which an equal ratio of power conversion in shear and convective heating to throuput of materia... | 01/27/1981 |
