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| Number | Title | Issue Date |
| 4387917 | Panic bolt units A door lock and release mechanism carried by a door and having a pair of oppositely directed locking bolts simultaneously movable to a release position by a door mounted operating bar. Provision is also made for moving the bolts to a locking position when... | 06/14/1983 |
| 4339019 | Safety chute An emergency escape apparatus for speedily evacuating workers or others from a high level platform or the like comprising a longitudinally folded tubular escape chute slidably connected to an angularly disposed cable, the chute being held in folded condit... | 07/13/1982 |
| 4332579 | Production of cases A method and apparatus for converting box blanks into formed but collapsed cases, the apparatus comprising means (15, 16) for receiving a vertical stack(s) of blanks, means (18, 19) for elevating and supporting the stack such that the top of the stack is ... | 06/01/1982 |
| 4328727 | Slitter-scorer apparatus A slitter-scorer apparatus comprises upper and lower slitter-scorer units which are disposed in one above the other relationship and are vertically movable respectively. The apparatus can immediately change slitting and scoring operations along the flowin... | 05/11/1982 |
| 4327525 | Servicing attachment for a carding machine An improved servicing attachment, for occasional use on a carding machine, having a support beam traversing a roller of the carding machine and removably mounted on the carding machine, a traversing unit reciprocably mounted on the support beam and a moto... | 05/04/1982 |
| 4325672 | Regenerative turbo machine A regenerative fluid dynamic machine, typically a blower or exhauster, includes a rotor (21) having a set of blades (24) which are curved, and preferably of aerofoil cross-section, in a manner which causes fluid flow passing through the set of blades to b... | 04/20/1982 |
| 4323212 | Mounting devices A device for mounting an electrical device such as a hair drier comprises a tube 10, suspension means 11, 12 to suspend the tube from a support with the tube extending downwardly, an extendable electrical lead 14 for the hair drier, the lead being urged i... | 04/06/1982 |
| 4316713 | Die for pelletizing machine An annular die for a pelletizing machine, having a multiplicity of radial bores (12) through which in one direction or the other, material is extruded to form pellets, each radial bore (12) having a portion (A) of constant cross-sectional area and a porti... | 02/23/1982 |
| 4311756 | Leather belts or aprons for textile machines The invention relates to a belt or apron for textile machines comprising a layer or lamination of a belt or apron as covered by U.S. Pat. No. 4,061,803 superimposed upon and bonded to a ply of resilient cellular polyurethane felt-like material.... | 01/19/1982 |
| 4309013 | Freight carrier A freight carrier comprises a flat rectangular base having a post at each corner pivotally mounted on the base so as to be capable of being selectively pivoted between a folded position, in which the post lies parallel to and adjacent to the base, and an ... | 01/05/1982 |
| 4302916 | Damp-proof courses and structural assemblies including damp-proof courses The invention is concerned with damp-proof courses which can be used at the end of a cavity wall of a building structure adjacent to a door or window frame. The invention provides a damp-proof course, which has a high degree of versatility in use. The dam... | 12/01/1981 |
| 4301634 | Manufacture of tiles An assembly of glazed ceramic tiles for the interior walls and ceilings each tile comprising a glazed body with glazed spacing lugs on all four sides of the tile at least two of the glazed lugs on two sides extending substantially the full length of the s... | 11/24/1981 |
| 4298289 | Mixing device A mixing device for bulk materials, particularly an agricultural trailer for mixing and dispensing silage, concentrates and other animal feedstuffs, includes a non-tipping body (10) within which rotates a main agitator (12) having members (14) which trave... | 11/03/1981 |
| 4296833 | Hydraulically operated access equipment Access equipment comprising a wheeled vehicle (10) carrying on its chassis a turntable (11) on which is rotatably mounted a supporting structure (12) on which, in turn, is mounted a pair of articulated booms (14,16) having hydraulic actuating rams (20,21)... | 10/27/1981 |
| 4296527 | Textile combing roller The invention relates to opening rollers for open-end spinning wherein the opening roller has a support part for attachment to the driving spindle and an adapter having the fiber engaging teeth of the roller. According to one aspect of the invention, the ... | 10/27/1981 |
| 4297112 | Deodorization of edible oils A semi-continuous deodorizer for the deodorization of edible oils, comprising a vessel (10) divided into three zones (A,B,C), means for collecting oil to be deodorized in the first zone (A) and for receiving deodorized oil from the second zone (B), in the... | 10/27/1981 |
| 4294188 | Hydraulically operated access equipment Equipment for cleaning hulls of ships and like surfaces, including a vehicle carrying an articulated boom structure comprising one or more booms connected to the vehicle and rotatable about a turntable thereon, and elevatable relative thereto, the outermo... | 10/13/1981 |
| 4293295 | Pelleting press A pelletizing press wherein an annular die having material extrusion bores therethrough has its inner periphery operatively engaging freely rotatable pelletizing rollers. The die is carried by a tubular rotor and the tubular rotor is driven by at least tw... | 10/06/1981 |
| 4290466 | Convertible container-holder that becomes the neck of a folding receptacle A convertible assembly that is adapted to hold a folded flexible container capable of being unfolded to a relatively large volume container and to effectively serve as the neck of that container when the latter is extracted and unfolded, comprising a rigi... | 09/22/1981 |
| 4286721 | Access equipment Apparatus enabling access to the interior surfaces bounding a large spaced comprises a pole adapted to extend vertically through the height of the space with its lower end located at the base of the space, at least one boom structure connected with said p... | 09/01/1981 |
| 4286707 | Device for driving an endless chain A device for driving an endless chain or the like, particularly, though not exclusively, a chain of the flat-link kind used in bucket elevators, the device comprising a reciprocating slipper having locking means which grips the chain in one direction of r... | 09/01/1981 |
| 4285447 | Suspension for bin discharging device A bin-activator of the kind which is supported beneath the outlet opening of a bin or hopper and which is vibrated to facilitate discharge of material from the bin or hopper, the bin-activator being suspended by a plurality of hangers (17) each of which e... | 08/25/1981 |
| 4276772 | Force transducer A force transducer comprises a block of material which is formed with a generally U-shaped or pi-shaped throughaperture 24 and a generally T-shaped throughaperture 26 in such a way as to form two loading members 10, 12 coupled together by first flexure el... | 07/07/1981 |
| 4276939 | Fire detection and extinguishing systems A fire detecting and extinguishing apparatus comprises a plurality of detectors mounted above the areas to be protected, a centrally arranged receiver to pick up electric signals or a different frequency from each detector an emitter to which the signals ... | 07/07/1981 |
| 4277505 | Process for the malting of grain Germination of cereal grain in malting is carried out by passing steeped grain to and through a series of six closed spaced discrete vessels in succession. The grain is maintained in each vessel for about a day and in each vessel is subjected to an upward... | 07/07/1981 |
| 4277183 | Mixing Machine A mixing machine is provided with a temperature regulating jacket surrounding the outer circumferential surface of a mixing tub, and with mixing vane members each composed of an upper portion being fixed to a vertical shaft, a lower portion being fixed to... | 07/07/1981 |
| 4274177 | Carding A method and apparatus wherein a machine for carding cotton, man-made fibres and mixtures thereof is provided with a trash removing device usually in the form of a longitudinally fluted roller that cooperates mechanically with a roller clothed with flat-t... | 06/23/1981 |
| 4268974 | Hoods for the cylinder drying section of paper making machines and other cylinder drying machines A hood for the cylinder drying section of paper making machines and other cylinder drying machines comprising a framework composed of hollow square or rectangular tubes supporting the hood through which heated air is passed for delivery between the cylind... | 05/26/1981 |
| 4266998 | Method for producing double-faced corrugated boards This method is a method producing double-faced corrugated boards which includes methods for changing single-faced corrugated boards. The methods comprise the steps of cutting a single-faced corrugated board which is fed from a single facer onto a bridge a... | 05/12/1981 |
| 4265533 | Apparatus for the production of duplicate, and other films from original films Apparatus for the production of duplicate micro and other film from an original film in which the duplicate film of considerably greater length than the original film is housed on a spool in a light tight magazine and fed therefrom through a light trapped... | 05/05/1981 |
| 4249847 | Apparatus for transporting boards An apparatus for transporting boards comprising: a first conveyor adapted to transport a large number of boards in an upright position: a tripping device adapted to pivot every several or tens of the boards transported by the first conveyor to the deliver... | 02/10/1981 |
| 4244818 | Method of removing metallic impurities from sewage sludge A method of removing metallic impurities from sewage sludge wherein the sludge is first acidified in the presence of an oxidizing agent and held to take metallic impurities into solution. The sludge is then treated with a flocculating agent and thickened ... | 01/13/1981 |
| 4240359 | Freight carrier A freight carrier having a base structure forming a freight carrying platform which is provided at each corner with a corner post pivotally mounted for movement between an upright erect position and a folded position in which the post lies parallel to the... | 12/23/1980 |
| 4236617 | Vehicles A vehicle includes variable-ratio gearing driven via a hydrodynamic torque converter. The converter has a hydraulically-engaged lock-up clutch which is temporarily disengaged whenever a ratio is disengaged. The vehicle has a system of hydraulically-engage... | 12/02/1980 |
| 4224847 | Tool positioning apparatus A tool positioning apparatus which is adapted to position by numerical control a plurality of pairs of tools attached to a pair of parallel shafts so that longitudinal slits, scores or the like may be produced along a web of board such as corrugated board... | 09/30/1980 |
| 4222457 | Hydraulic platforms An hydraulic platform comprises a support structure which mounts a boom assembly comprising a plurality of booms pivotally connected in end-to-end relationship and carrying on its free end a working platform or cage, hydraulic actuator means for pivoting ... | 09/16/1980 |
| 4221419 | Gripping devices A device for use in gripping a flanged structural member comprises a pair of gripping members pivotally connected together about a first axis for movement towards and away from one another, a screw threaded connection operable to urge the gripping members... | 09/09/1980 |
| 4215755 | Power transmission mechanisms A variable-ratio power transmission mechanism having two output shafts for driving respective wheels or tracks at opposite sides of a heavy off-the-road vehicle, and having a steering mechanism for varying the relative rotational speeds of said shafts, is... | 08/05/1980 |
| 4215903 | Fluid-flow control valves Hydrostatic bearing arrangements in which there is a fluid-flow control valve adapted to exercise an automatic pressure responsive control over two fluid-flow outputs to a pair of bearings. The valve has a diaphragm located between two control surfaces fo... | 08/05/1980 |
| 4212174 | Lay-in yarn feed The invention relates to circular weft knitting and according to the method described, those stitches which are formed between a cylinder needle and a dial needle are formed around a guide member which lies in the angle between the verges of the cylinder ... | 07/15/1980 |
