baber/WOPTO huggingface dataset:
Patent GB-705570-A (GB)
Abstract: 705,570. Washing granular materials. DENVER EQUIPMENT CO., Ltd., and STAPLES, C. O. May 9, 1951 [March 13, 1950], No. 6216/50. Class 82 (2) A selector pulsator, i.e. a concentrating or separating apparatus comprising a screen on to which material to be concentrated or separated is fed, a reciprocating plunger or the like for causing pulsating movement of liquid through the screen, a chamber below the screen and plunger or the like to be filled with liquid in communication with the plunger or the like and screen and in which heavy material passing through the screen is received, and a manually or mechanically adjusted valve controlling a discharge outlet at the bottom of the chamber, has the chamber, together with the screen and plunger or the like, pivotally supported so that when a predetermined weight of material has collected in the chamber the latter tilts and actuates an outlet opening mechanism, and the chamber has a change of conicity such as to produce greater change of weight of material per unit change of level in its upper part than in its lower part. The pulsator comprises the conical chamber 1, pump chamber 7 and hopper chamber 8. The chamber 1 has an outlet 2 closed' by a valve 67 and the conicity of the upper part 70 differs from that of the lower part. The chamber 7 is closed by a diaphragm 9 operated by a plunger rod 10 driven from the motor 14 through mechanism comprising drive shafts 12 and 23, the latter carrying a valve member 16 rotating in a housing 17 having an inlet 20 and an outlet pipe 21 communicating with the chamber 1. The chamber 8 has a screen comprising a mesh 28 and a grid 29. The chambers are carried by girders 38, Fig. 2, secured at one end to a shaft 47 journalled in a supporting framework; at the other end, elements 53 connected to the girders 35, bear on a shaft 55 fixed in a swinging arm 56 secured to the shaft 57 which is also journalled in the supporting framework. - An adjustable link 60 connects the arm 56 to a lever 61 carrying the valve 67. Thus, when the weight of material in the chamber 1 exceeds a predetermined amount, the weight of the arm 56 is overcome, the chambers tilt about 47 and the valve 67 is opened. Weights 69 may be placed in the end 68 of the arm 56 to adjust the weight at which tilting occurs. In a modification, not shown, the shafts 12 and 47 are arranged at right-angles to give a gyroscopic stabilizing effect to damp the tendency of the parts to oscillate about the shaft 47.
Patent GB-733396-A (GB)
Abstract: 733,396. Fountains. PRZYSTAWIK, O. Aug. 25, 1953 [Sept. 2, 1952], No. 23404/53. Class 69 (1). [Also in Group XXVIII] A fountain installation, particularly for exhibition or stage work, comprises a tub in which is mounted a plurality of pipe lines detachably divided into sections, spraying means communicating with the pipe lines and supply conduits connected to the pipe lines. In the form shown the tub 1 consists of a wide hollow rim 5 surrounding a deep central trough 2 and shallower side troughs 3 and 4, the rim and the side troughs being formed of elastic material, e.g. rubber, and being inflatable through a valve (not shown). Pipe lines 8 are arranged within the troughs 2, 3, 4, the pipe lines being divided into three groups I, II, III, each further divided into sub-groups a, b, c (Fig. 3). The individual pipe sections of the sub-groups are welded to rods 9 which are connected together to form the sub-groups and the pipe sections forming the groups are connected by couplings 11, 12 (see Group XXVIII) to form the complete pipe assembly. Spray nozzles are fitted to the pipe lines as follows: pipes 17 are connected to parallel pipes 19 provided with a plurality of nozzles 20; pipe 21 carries and is connected to pipe rings 22 each provided with a plurality of nozzles 23 and additional rings within the rings 22 are connected to other pipes; pipe 24 is provided with rose heads 25; pipe 26 is provided with eight-fold nozzles 27 rotated by an electric motor 28. A pair of transverse nozzle pipes 29, 30 are rockably mounted on pipes 34, 38 of each pipe group, the transverse pipes 29, 30 being connected by means of a rotatable joint 35, 36 (shown in Fig. 6) to pipes 38, 34 respectively. The transverse pipes 29, 30 are all provided with dependent arms, the arms 39 of pipes 29 being connected to one longitudinal rod and the arms of the pipe 30 to another longitudinal rod so that when the rods are reciprocated in opposite directions, by a linkwork driven by an electric motor 42, the trans verse pipes 29, 30 are oscillated in different directions. Each pipe section of the centre group II is connected by a supply conduit 49 to a separate pump 51 each driven by an electric motor 50. The inlet of each pump is connected, by a pipe or flexible hose 52 and a coupling 53, to a suction pipe 54 having a slot in its lower side. A check valve 55 is fitted to each suction pipe to prevent a non-operating pump from being drained when others are in use. Water supply tanks 57 are connected via valves 58 and a conduit 59 to one of the pumps 51 of larger capacity than the remainder. A switchboard 61 for controlling the pump and other motors is also provided. Preferably the tanks 57, the assembly of pumps 51 and the switchboard 61 are all mounted on wheels. Further groups of pipe sections in addition to the three shown may be provided and the tub, instead of being inflatable may be formed of a plurality of boxes, shown dotted in Fig. 1, covered with a rubber sheet.
Patent GB-773332-A (GB)
Abstract: 773,332. Fluid-pressure servomotor control systems. NAPIER & SON, Ltd., D. April 29, 1955 [May 25, 1954], No. 15450/54. Class 135. Hydraulic apparatus for obtaining a differential pressure which varies in accordance with the pressure difference in two main pressure lines, comprises a piston assembly having a pair of main piston surfaces acted upon by the two main pressures to urge the assembly in one or other direction, a further piston surface in a differential pressure chamber acted upon by liquid at the differential pressure tending to balance the out-of-pressure forces acting on the main piston surfaces, a control valve associated with the assembly controlling the flow of pressure liquid from a pressure source to the chamber and the escape therefrom and a line connected to the chamber. As shown applied to an hydraulic torque-meter to indicate the torque transmitted to a propeller by an aircraft power unit, the apparatus comprises a valve piston 11 connected by an element 10 to transmission gearing between the propeller and the power unit and a piston assembly 9 connected by main pressure lines 13, 14 to opposite ends of a cylinder 12 in which the valve piston 11 slides to control ports 17, 18 from a pump 19 and ports 20, 21 to exhaust. The assembly comprises a casing having coaxial bores 25, 26 slidably mounting pistons 37, 38 interconnected by a loose rod 39 and a parallel bore 32 slidably mounting a shuttle valve 35. The pistons 37, 38 are formed with ducts 41, 42 respectively controlling branch connections 45, 46 from the lines 13, 14 and exhaust ports 47, 48 leading to a common outlet 49. Liquid from the ducts 41, 42 enters differential pressure chambers 33, 34, which communicate with the bore 32. Loose plungers 55, 56 of the same diameter as the rod 39 and subjected to the pressure in the lines 14, 13 respectively hydraulically balance the assembly. On movement of the valve piston 11 in one or other direction by the element 10 the pressure in one of the lines 13, 14 increases and in the other decreases to cause movement of the pistons 37, 38. In dependance upon the pressure difference, liquid is admitted to one of the chambers 33, 34 and exhausted from the other, the shuttle lift valve moving to connect the chamber at pressure to the bore 32 and thence a line 31 to a pressure sensitive torquemeter 36. Specification 743,418, (Group XIX], is referred to in the Provisional Specification,
Patent GB-782049-A (GB)
Abstract: 782,049. Ignition systems. BURDIN, M. A., and BAKER, S. C. Feb. 28, 1956, No. 6167/56. Class 7(4) [Also in Group XXXVI] An electrical converter device for use in ignition systems comprises an insulated housing containing an element of silicon carbide in contact with an aluminium element coated with aluminium oxide, which is connected in series in the ignition circuit. The arrangement is said to increase the high frequency component of the spark. Fig. 2 shows the housing consisting of two insulated portions 14 and 21 carrying screws 17 and 23 which serve to contact the ends of the ignition lead. The heads of screws 17 and 23 contact conducting members 27 (Fig. 3) which grip a first roller 26 of silicon carbide and a second roller 26 of oxide coated aluminium respectively. Rollers 26 are held in a nylon frame 25. Discs or spheres may be used in place of rollers 26, and the contacting surfaces may be flat, concave or convex.
Patent GB-2026292-A (GB)
Title: Path tracing device for spreading or spraying agricultural treatment products or the like
IPC: A01B69/02
Filed: 1978-07-28
Abstract: The tracing device adapted to be mounted to the front end of a tractor comprises a lateral jib 1 having a length equal to the width of the lanes on which an agricultural or similar product is to be spread or sprayed. The jib is pivoted about a vertical pintle carried by a framework fixed to the front of the tractor. The outer end of the jib is provided with a jib-supporting and tracing wheel 17. Alternatively, the jib may be either telescopic or made of two hingedly interconnected frames, with a pair of wheels supporting the hinge and the tracing wheel located at the outer end of the outer frame. A rope 14 attached to the tractor and to the outer end of the jib is provided for constantly keeping the jib on one or the other side of the tractor so as to form with the latter an angle of 90 DEG . <IMAGE>
Patent GB-2029794-A (GB)
Title: Fluid Transfer System
IPC: F17C6/00
Filed: 1978-09-13
Abstract: The invention relates to a fluid transfer system for use in an offshore platform. The invention is particularly suitable for use in the transfer of a cryogenic liquid where the product transfer pipe may not be allowed to flex excessively. The transfer system comprises an inner boom 20 which is heavy and an outer boom 26 which is relatively light and counter-balanced by a weight 28. A product pipe 18 is suspended from the free end of the outer boom which is additionally tied to the tank by a cable 40. As the tanker 10 moves up and down relative to the platform 12 the outer boom 26 pivots about the outer end of the inner boom 20 and the cable 40 is maintained in tension. No forces are transmitted by the transfer hose 18 which only flexes to allow lateral movement of the tanker 10. <IMAGE>
Patent GB-2038612-A (GB)
Title: Refuse containers
IPC: B65F1/10
Filed: 1979-02-19
Abstract: An ash cooling device is used with a refuse container having a liner and permits the transfer of hot ashes to take place without allowing the discharge of hot or cold ashes into the atmosphere and without damage occurring to the plastic liner. The device includes four metal walls, one of which is hinged, and is located within an open-ended cylinder which may also be of metal. When the ashes have cooled sufficiently, the hinged wall is pivoted and the ashes fall into a plastic liner.
Patent GB-2019346-A (GB)
Title: Slurry tanker
IPC: A01C23/04
Filed: 1979-02-19
Abstract: A tanker vehicle, for example a tractor drawn slurry transporter for agricultural use, comprises an articulated boom (14, 15) mounting a rotary submersible pump (23) at its outer end and supporting a duct (20 etc) part of which may be telescopic and part of which may be constituted by a section of the boom itself, forming an outflow connection at all positions of the boom between the pump and the vehicle tank (10). Drive means, e.g. chain and shaft drive, is mounted on the boom to connect the pump to a P.T.O. shaft (12) or other power source so that the pump will operate at all positions of the boom. <IMAGE>
Patent GB-2017431-A (GB)
Title: Electronic flash device
IPC: H05B41/32
Filed: 1979-03-05
Abstract: In an electronic flash device, in or for a camera, unnecessarily rapid battery deterioration is avoided, and adequate charge maintained for a flash of a prescribed intensity, by providing means 10 for indicating a required state of charge of a flash- initiation capacitor 9 in response to the output of a potentiometer having a first limb of fixed resistance 13 and a second limb 14, 11, T3 which has a different resistance during capacitor charging from that after termination of such charging. The difference in resistance may be obtained by bridging part 11 of the resistance of the second limb by means of a switch, conveniently a transistor T3 which conducts only during charging of the capacitor 9 from supply 8. Conveniently the supply 8 to the capacitor 9 is controlled by a push-button on-off switch S1, S2 which is held closed by an electromagnet 4 at low levels of ambient light, detected by photo- resistance 2, and released by the indicating means 10. The arrangement is such that the device has an artificial hysteresis.   <IMAGE>
Patent GB-2014908-A (GB)
Title: Print wire actuator
IPC: B41J2/285
Filed: 1979-04-06
Abstract: An actuator for a wire matrix printer comprises an armature 17 connected to a print wire 14, a preloaded spring 25 and a solenoid within the armature 17 which, when energised, moves the armature against the action of the spring 25. When the solenoid is de-energised, the armature 17 moves on under the action of the spring 25 so that the armature 17 and print wire 14 move towards the paper 10. The extent of travel of the armature 17 and wire 14 under the direct action of the spring 25 is limited (by ring 26 engaging step in bore) whereby the inertia only of the armature 17 and the wire 14 causes the impact of the wire with the paper. A weak spring 28 may return the wire 14 to the position shown. <IMAGE>
Patent GB-2023102-A (GB)
Title: Storage containers
IPC: H05K13/00
Filed: 1979-05-24
Abstract: A device for holding and storing printed circuit boards has a rectangular frame 1, sides 3, 4 and a peripheral flange 5 projecting beyond the top edge of each side. The inside faces of the sides have grooves 6 of equal width and inter-connecting ribs 7 over at least part of the total height of the sides. Cross dividers 8 fit into opposing grooves 6 in the side walls, the dividers 8 also having grooves 6. The position of the dividers 8 in the holder can be adjusted so that the holder can receive printed circuit boards of different sizes. Every fourth rib on the sides of the dividers 8, is slightly shorter than the others to provide a visual aid for correctly inserting printed circuit boards in opposing grooves. <IMAGE>
Patent GB-2025207-A (GB)
Title: Grill
IPC: A47J37/10
Filed: 1979-06-12
Abstract: A grill comprises an open top vessel 1, a grid-iron 5 located in the vessel to support the food to be grilled, an upper vessel or lid 2 connected to the first vessel by hinges 3 and being adjustable between a position at which it closes the first vessel 1 and a plurality of positions in which the first vessel is open to some extent. An electric heating resistance 6 is mounted in the upper vessel 2 and is connected to the hinge position for the upper vessel so that in its heating position the resistance 6 can be made substantially parallel to the edges of the upper vessel 2 and enabling it to be pivoted from this position over its hinge position to a partly open position beneath the edges of the upper vessel so that it is then possible to place the reflector plate 14 above the resistance 6 in the upper vessel. <IMAGE>
Patent GB-2027161-A (GB)
Title: Resilient mounting of vehicle suspension struts
IPC: B60G11/56
Filed: 1979-07-12
Abstract: A MacPherson strut type of suspension system, utilising a telescopic shock absorber 32 and a surrounding coil spring 40 utilises a strut upper mounting comprising a single elastomer ring 58 preloaded between upper and lower retainer members 74 and 76 that are secured to each other and around an opening 38 in a body portion 12 of a vehicle. Bearing means 66, 70, 72, are mounted between a bottom portion of the elastomeric ring and a spring retainer flange 44 for the upper end of the coil spring 40. The piston rod 36 of the shock absorber is secured within a central portion 60 of the elastomeric ring. With this arrangement the preloaded outer portion of the elastomeric ring is subjected to compression forces during jounce and rebound conditions, whereas the preloaded central portion of the ring is subjected to shear forces during such jounce and rebound conditions, thereby providing predetermined different stiffness characteristics for the shock absorber and the coil spring. <IMAGE>
Patent GB-2042391-A (GB)
Title: Underwater arc stud welding gun
IPC: B23K9/20
Filed: 1979-08-13
Abstract: An underwater arc stud welding gun, for use with a ceramic ferrule 6, comprises a stud welding gun body 1, a shroud 5 (e.g. transparent) having one end thereof fixed watertightly to the leading end of the gun body, an annular ferrule retainer 7 fitted airtightly to the inner wall of the shroud close to the open edge thereof, and means for introducing a gas under pressure into the interior of the shroud. In use, the ferrule and stud dimensions are arranged such that a fine gap is formed in the shape of a cylinder between the ferrule and the stud to permit passage of said gas under pressure to displace water from the stud-adjacent surface of a workpiece 3. As shown, the shroud and ferrule end faces have water and gas egress recesses 23, 24. A porous belt 25 (e.g. of steel wool or sponge) prevents re-entry of water. Disclosed gases are air, CO2 and a mixture of CO2 and A. Gas flow start and stop before and after current flow may be under manual or timer control. <IMAGE>
Patent GB-2069626-A (GB)
Title: Bearing and method of mounting bearing
IPC: F16C23/00
Filed: 1979-11-05
Abstract: A system for mounting a stern bearing 11 in a bore 25 in the stern frame boss 24 of a ship comprises mounting an arcuate bar 29 on the bearing and inserting the sub-assembly into the bore. The bar permits pivoting of the bearing about two mutually perpendicular transverse axes so that the bearing can be set at the desired alignment. The ends of the clearance space 33 are closed by seals 27 and 28 and the space 33 is then filled with a hardenable grout to set the bearing in position. <IMAGE>
Patent GB-2107833-A (GB)
Title: Target-tracking interception control systems
Inventor: WEISBRICH REINDHARD
IPC: F41G5/08
Filed: 1979-12-31
Abstract: In a target-tracking interception control system, such as a fire control device for an anti-aircraft defence system, the lead-angle for anti-aircraft defence, is calculated in accordance with a path sampling principle using a digital computer to which target object position data is supplied from sensors, and a delay time  DELTA t is introduced to obtain a theoretical position for a future impact time T1 at which the target object and projectile positions will coincide. The hypothetical impact time is composed of the sum of the projectile flight time and the delay time. <IMAGE>
Patent GB-2067242-A (GB)
Title: Mixture preparation for pre- combustion chamber i.c. engines
IPC: F02M69/04
Filed: 1980-01-10
Abstract: Apertures 13 in the tube 11a provide for passage of rich mixture, produced in the tube in the main passage 5 by the fuel injector 10, to a chamber 12 communicating with the pre-combustion chamber intake passage 8. The chamber 12 may have a controllable air inlet passage (18), Figs 2 and 3 (not shown). A single injector 10 may be located upstream of the respective main and pre- combustion chamber intake passages 5 and 8 of a multi-cylinder engine, Fig. 4 (not shown). <IMAGE>
Patent GB-2060138-A (GB)
Title: Gate Valve
IPC: F16L55/124
Filed: 1980-01-24
Abstract: The valve comprises a housing 26 containing two separate channels in which are an iris valve 28 and a flexible diaphragm valve 27 which can be moved laterally by respective lead screws 33 and 30 in to and out of a flow path. The iris valve has a number of segments which are opened by a flange on one segment which successively engages the other segments. When a rack and pinion are operated to give a 90% closure of the flow path. Movement of the flexible valve into the flow path completes the closure by engaging the periphery of the flow path under fluid pressure acting thereon. <IMAGE>
Patent GB-2046192-A (GB)
Title: Handle assemblies
IPC: G05G1/08
Filed: 1980-03-18
Abstract: A handle assembly comprises a knob (1) rotatably mounted on a pin (8) on a handle, such as a lever or crank (2) to operate a mechanism such as a vehicle window regulator, the pin including discrete spaced apart elements (7), e.g. tapered castellations, which are designed to break under impact or stress loads so that the knob can break away from the handle. The pin may be integral with the handle as shown or may be attached thereto by a mounting portion of the pin having camming formations cooperating with corresponding formations on a boss portion (5) of the handle. The knob and pin may have complementary frusto-conical bearing surfaces (11), (14) as shown or alternatively cylindrical bearing surfaces. <IMAGE>
Patent GB-2046127-A (GB)
Title: Improvements in or Relating to Seals
IPC: C09J7/35
Filed: 1980-03-19
Abstract: A recoverable seal for sealing a container, especially an artillery ordnance cannister comprises a heat- shrinkable band having a coat of heat- activatable adhesive on one surface thereof which has a mean thickness of 0.01 to 1.0 mm and differs from the mean thickness over the surface by at most 25% of the mean thickness. The band may be provided with a tearable region such as a score line to enable it easily to be peeled off the container. The seals may be made by forming a tube of polymeric material, expanding it radially to render it heat-shrinkable, passing the tube through a bath of adhesive to coat it, cutting the tube into annular bands, and distorting the bands so that the coated surfaces face inwards.
Patent GB-2075100-A (GB)
Title: Sliding plug door
IPC: E05D15/10
Filed: 1980-04-23
Abstract: Apparatus for closing a sliding door so as tightly to seal a door opening including track elements 10, 11 comprising a terminal length portion 15 at an obtuse angle to a neighbouring length portion. <IMAGE>
Patent GB-2052597-A (GB)
Title: Flue Blocks
IPC: E04C1/39
Filed: 1980-04-30
Abstract: A hollow, tubular flue block 10 has a projecting spigot 14 at its lower end which forms a rim around the aperture 12 through the block. The spigot mates with a corresponding recess 22 at the upper end of a similar block. The spigot 14 projects by a distance greater than the depth of the recess 22, so that blocks can be dry jointed to leave a peripheral groove 24 into which cement is subsequently grouted. This decreases the risk of cement falling into the aperture 12 during construction of the flue. <IMAGE>
Patent GB-2075622-A (GB)
Title: Axle with multi-plate disc brake
IPC: F16D55/36
Filed: 1980-05-03
Abstract: An axle having a hub reduction epicyclic gearing (16, 17, 19 and 20) outboard of a multi-plate disc brake (35) comprises an outer part (11) of the hub (23) containing the planet carrier (19) and the annulus gear (20) which can be removed to permit servicing of the brake. The part (11) comprises a bell-shaped member (12) and a gear having end plate (13) connected by screws (14), and bolted to the end of the axle casing by bolts (66) removable so that the assembly of member (12), plate (13) together with planet corner (19), annulus gear (20), planet gears (17) and hub (23) can be removed as an assembly to expose multi-plate brake (35). <IMAGE>