baber/WOPTO huggingface dataset:
Patent GB-1288177-A (GB)
IPC: G01F23/24
Filed: 1971-04-19
Abstract: 1288177 Electro-physical measurement; liquid level BENDIX CORP 19 April 1971 [25 Feb 1970] 21034/71 Heading G1N A floatless liquid level gauge comprises a pair of electrodes 4, 5 immersed in the liquid and connected to a D.C. supply, while a third electrode 6 in the current path between the energized pair, acts as a tapping point on a liquid resistance, and is inclined so that the ratio of the liquid arms varies with the depth of liquid Fig.1. In an alternative arrangement the energized electrodes are formed by a rectangle split diagonally, Fig. 2 (not shown), or with tubular electrodes one may be partially masked with insulating paint as shown in Fig.8, or the energized sections 94, 95 may be stacked vertically round the third electrode 96, Fig.9. Either the shape of the electrodes or the amplifier characteristic may be tailored to compensate for irregular tank shape or to give a linear or other desired scale. An AUTOMOBILE FUEL-GAUGE is described with reference to Figs. 3..7 (not shown) in which the electrodes comprise three concentric metal tubes. The inner one acting as the grounded electrode and the filler pipe for the fuel tank may have a filter at the lower end, and the outer may be painted as in Fig.8. An integrated amplifier "chip" (70) Fig. 7 (not shown), may be built into the gauge-head. An OIL LEVEL WARNING gauge to screw into an engine sump may be constructed as in Figs.9 and Fig.10 (not shown) to actuate a relay 99a and warning lamp 99b when the oil reaches a low limit. The amplifier may again be built into the gauge head. The gap between the energized electrodes may be filled with a porous insulator to reduce the effect of oil sloshing inside the gauge, Fig.11 (not shown).
Patent GB-294215-A (GB)
Title: Improvements in or relating to apparatus for filtering rubber dispersions and the like
Filed: 1928-07-20
Abstract: 294,215. Anode Rubber Co., Ltd., (Assignees of Szegvari, A., and Spencer, C. M.). July 20, 1927, [Convention date]. Feeding webs.-Apparatus applicable for the treatment of aqueous dispersions of rubber comprises a long strip 19, Fig. 3, of fibrous material which is unwound from a roll 24 and passes round a guiding roller 17, and a driven feed-roller 30 on to a re-winding roll 34. The rollers 16, 17 serve also as bearing rollers for the drum 18, which is supported in the bight of the band 19. The liquid under treatment is supplied under gravity to the interior of the drum through an inlet 11 and filters outward through the band, passing away from the container 10 through an outlet 12. The rolls 24, 34 are situated in compartments 25, 35 which contain water for keeping the band moist. The wall of the compartment 25 has a semi-circular rim 27, the outer surface of which is scored with diverging grooves which have a tentering effect on the band. The band is held against the rim 27 by a roller 29. The roller 30 has a rigid core and a surface of soft rubber against which the band 19 is held in frictional contact by a corrugated pressureroller 33. The roller 30 is driven by means of a sprocket wheel 46 which carries pawls 50, gearing with a ratchet wheel 48, Fig. 2, fixed to a sleeve 44 on the trunnion 42 of the roller. The roller can also be turned manually by means of a knob 52 on the trunnion. The roller 34 is geared to the roller 30 with an intermediate friction disc.
Patent GB-499225-A (GB)
Title: Improvements in or relating to piezo electric crystal mountings
IPC: H03H9/05
Filed: 1937-07-30
Abstract: 499,225. Piezo - electric crystal mountings. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 30, 1937, No. 21166. Convention date, Sept. 30, 1936. [Class 40 (v)] The electrodes 20 30 are of the same size and shape as the crys tal 40, and are em bedded in blocks 21 31 of insulating-ma terial. External con nections are made tc rod-like extensions 23 33 of the electrodes The insulating blocks are mounted on risers 42 and are pressec together by springs 52 around screws 48. A metal casing 46 is provided.
Patent GB-588668-A (GB)
Title: A new or improved trailer dumping vehicle
IPC: B60P1/24
Filed: 1944-10-30
Abstract: 588,668. Tipping trailer vehicles. HAMILTON, T. Oct. 30, 1944, No. 21172. [Class 108 (i)] A trailer transport and dumping wagon comprises' a chassis 4, 17 mounted on an axle 7, a body 6 mounted on arcuate supports 5 and adapted to roll on the chassis member 4, the body having increasing capacity from rear to front and positioned in respect to the rolling supports as to tend to tilt when loaded, releasable locking means 12, 11 holding the body in loading position, fixed restraining means 18, 19 to limit the degree of tilt upon unlocking and automatic gravitational return of the body to its normal position after dumping. The catches 12 are fixed to a shaft 13 pivoted to the side frames 4 and are disengaged from the bar 11 on the body by a lever 14 operated from the tractor by the driver. An extension 15 of the lever is connected by a spring 16 to the chassis member 17 to pull the extension against a stop 22 on the draw-bar 1 to maintain the hooks 12 in the latching position. In a modification, Fig. 6, the chassis is provided with a turntable 26 and the body has a corresponding turntable 27 mounted on the underside which engages with a centre pin 25 so that the body can be revolved for side tipping, the turntable being locked by a screw clamp 29, Fig. 7 (not shown), in any side tipping position.
Patent GB-1263772-A (GB)
Title: A shaft for carrying a rotor of a centrifugal phase separator device or a centrifugal countercurrent exchange device
Inventor: DOYLE WLADZIA GAJDA PODBIELNIA
IPC: B04B5/06
Filed: 1969-04-25
Abstract: 1,263,772. Centrifugal liquid contactor/ separator. W. G. P. DOYLE and C. M. DOYLE. 24 April, 1969 [20 May, 1968], No. 21190/69. Headings B1F and B2P. [Also in Division F2]  In a centrifugal liquid/liquid contactor/separator comprising concentric bands 20 around a central shaft 28, heavy liquid is introduced via conduit 30 and ports 58, Figs. 1 and 5, and withdrawn via ports 64 and conduit 34, Figs. 2 and 7, and light liquid is introduced via annular conduit 32 and ports 60, Figs. 1 and 5, and withdrawn via ports 66 and annular conduit 36, Fig. 1. Fig. 2 is a cross-section of the central shaft taken at an angle to that shown in Fig. 1. The arrangement produces a uniform distribution of liquids linearly across the apparatus. The type of central shaft shown can also be used to support the rotor of a centrifugal phase separator. Specifications 1,068,680; 1,058,766 and 963,166 are referred to.
Patent GB-149277-A (GB)
Title: Elastic holder for closing devices for tubes or similar vessels
IPC: B65D35/42
Filed: 1920-07-14
Abstract: 149,277. Silberberg, L., (Assignee of Jensen, M.). Feb. 15, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Stoppers, connexions to prevent loss of.-Relates to a spring attachment for screw and other stoppers arranged so that when the stopper is removed from the receptacle it is automatically swung away from the discharge opening. In the arrangement shown, a wire with a spring coil e encircles the neck at one end d and carries the screw-cap g at the other.
Patent GB-717016-A (GB)
Title: Improvements in process and apparatus for moulding piles of concrete and the like for building purposes
IPC: E02D5/38
Filed: 1952-08-25
Abstract: 717,016. Piles. LIDBERG, A. R. Aug. 25, 1952 [Aug. 23, 1951; Nov. 10, 1951; April 17, 1952], No. 21327/52. Class 68(2) A concrete pile is cast in situ by sinking a mould comprising at least two segmental portions, 1, 2, detachably secured together to form a tube, the upper end of the tube fitting into a head portion 7 which is struck by the driving member 13, and the lower end of the tube fitting into a conical shoe 9 with an interposed washer 11. The washer is now withdrawn, the tip of the shoe melted or blown off as by the detonation of an explosive powder, and the tube filled with concrete. After the concrete is set the tube is withdrawn, preferably section by section. Before withdrawing the tube it is forced downwardly a little through the gap formerly occupied by the washer; this loosens the tube from the concrete. Before the concrete is poured a guiding tube for a rock-boring tool may be inserted; after the rock has been bored and the guide tube withdrawn, a pin may be positioned within the mould extending into the bore. Alternatively the mould may be driven by pressure applied alternately to the inside of the conical shoe (through a thrust rod acted on by a pile driver head) and to the top of the mould, a gap being left between the bottom of the mould and the inside of the conical shoe. before the concrete is poured, to permit the loosening downward movement of the mould before its withdrawal after the concrete has set.
Patent GB-257631-A (GB)
Title: Improvements in or relating to rotary pumps
IPC: F01C21/08
Filed: 1926-08-30
Abstract: 257,631. Maillefer, A. Aug. 29, 1925, [Convention date]. Fixed-abutment type; balancing moving parts; packing vanes. - In a rotary pump having a diametral vane 10 sliding between rollers 15 in a drum 7, which contacts with a fixed cylinder 1 over an appreciable arc, the vane is connected by pins 16 to the inner rings 18 of ball bearings 19, the outer rings of which, are secured in circular cavities which are formed in rings 20 and are disposed eccentrically to the bearings 21 for the rings 20. The centre of the vane is thereby constrained to move in the circular path O<1>. The centrifugal face of the blade is balanced by oppositely disposed masses 22 on the rings 20. The ends of the vane are packed by plates 12 pressed laterally by springs 13.
Patent GB-658938-A (GB)
Title: Improved variable inductance coil
Inventor: BOISE HENRY CLARENCE DE
IPC: H01F17/04
Filed: 1949-08-17
Abstract: 658,938. Inductances and transformers. STANDARD TELEPHONES & CABLES, Ltd. Aug. 17, 1949, No. 21398. [Class 38 (ii)] A variable inductance has the value of the inductance of the coil 3 adjusted by axial movement of a screw - threaded metallic core 4 within a correspondingly screw-threaded former 1, means being provided for holding the core in any adjusted position comprising a rubberlike band 7 mounted in a circumferential groove 6 in the core such that the band is in engagement with the screw-thread on the former. Thus the position of the core is capable of readjustment. The core may be of compressed powdered magnetic material or may be non- magnetic. A further winding may be placed on the former 1 so forming an electrical transformer.
Patent GB-1030486-A (GB)
Title: Improvements relating to polymerisation process
Inventor: GINTZ FRANCIS PAUL
IPC: C08F236/16
Filed: 1964-05-23
Abstract: Chloroprene with or without a comonomer is polymerized in aqueous emulsion in the presence of a water-soluble rosin salt and a water-soluble salt of a polymerized unsaturated fatty acid to form a latex containing at least 50% solids.  By polymerized unsaturated fatty acid is meant a dimer and/or trimer of an unsaturated acyclic aliphatic carboxylic acid having at least ten carbon atoms, e.g. the polymers of oleic linoleic and linolenic acids. Suitable proportions of both salts are 1 to 3% based on the monomer(s) initially present-preferable are the alkali metal, ammonium or amine salts. Comonomers specified are styrene, vinyl toluenes, butadiene, isoprene, 2-3-dichlorobutadiene, methyl vinyl ether, vinyl acetate and acrylonitrile.
Patent GB-595315-A (GB)
Title: Rope fastener
IPC: F16G11/10
Filed: 1944-11-02
Abstract: 595,315. Clips ; cord-fastenings. POOLE, P. H. Nov. 2, 1944, No. 21514. [Class 44] A fastener for rope and the like is provided with a channel E at least twice as wide as the diameter of the rope and a gripping device B on one side of the channel, the device extending not more than halfway thereacross, so that the rope can run freely in both directions in the open part H of the channel, but in one direction only in the other part. The device B may be, as shown, a pivoted plate associated with a stop C, or a sliding plate or bar, or a sliding wheel, and may be carried to gripping position by gravity or spring pressure. The channel may be formed by any suitable surface on a device to which the gripping device is applied, e.g. a pulley sheave.
Patent GB-1499897-A (GB)
Title: Light emitting diode
IPC: G09F9/33
Filed: 1975-05-20
Abstract: 1499897 Manufacture of LEDs XEROX CORP 20 May 1975 [29 Oct 1974] 21527/75 Heading H1K An LED is produced as part of an array by forming a curved depression for each LED in a substrate surface, filling each depression with semi-conductor material, and then forming therein a PN junction centred over the depression. If the substrate is subsequently to be removed it is coated prior to the filling step with a material containing aluminium which can be preferentially etched away to separate the semi-conductor material from the layer. If the substrate is to be retained as part of the structure it should have a refractive index less than that of the semi-conductor, for example it may be of ZnS x Se 1-x , spinel or sapphire if the semi-conductor is an A III B V  compound or of N + gallium aluminium arsenide if the semiconductor is N-type gallium arsenide. When separation is required the substrate and semiconductor may both be of gallium arsenide or gallium phosphide and the coating of gallium aluminium arsenide or phosphide respectively, an increase in the aluminium content or thickness of the coating, and heating or agitating the etchant enabling separation by immersion in hydrochloric or hydrofluoric acid to be speeded up. The depressions, which are preferably hemispherical, can be formed by laser machining, mechanical drilling followed by etching, or by etching through an apertured mask, the coating and semi-conductor deposited by liquid phase epitaxy, and the junction formed by oxide or nitride masked diffusion.
Patent GB-227481-A (GB)
Title: An improved process for the preparation of alphanaphthylamine
IPC: C07C209/36
Filed: 1923-08-27
Abstract: a -Nitro naphthalene is catalytically reduced to a -naphthylamine by heating it with agitation in an autoclave in the presence of water, a catalyst and hydrogen.  The product is filtered while hot from the catalyst and the a -naphthylamine allowed to separate out on cooling. The hydrogen may be employed under reduced or increased pressure, preferably at a pressure of 4-5 atmospheres, and water-gas may be used instead of hydrogen. A finely-divided metal such as nickel, cobalt, copper or iron, or an oxide thereof is employed as catalyst and may be mounted upon a carrier such as charcoal, pumice or quartz. The starting material should contain no organic halogen, sulphur, selenium or tellurium compounds.  Reference has been directed by the Comptroller to Specifications 16936/13 and 135,510.
Patent GB-473504-A (GB)
Title: Improvements in or relating to electric welding apparatus
IPC: A01B63/06
Filed: 1936-08-06
Abstract: 473,504. Electric welding. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 6, 1936, No. 21694. Convention date, Aug. 6, 1935. [Class 83 (iv)] In a multi-spot welding-machine, particularly for welding large work parts to each other or to a number of separate parts or for welding wire cloth, a row of electrodes connected in parallel to the current source are moved in succession by an operating member to close a circuit through each spot and to release each electrode after the next electrode has been brought into operative position, means operated by said member being provided for cutting off the current through the last welded spot before the last electrode is released and for keeping it cut off until a fresh circuit is established through the first of another series of spots. The electrodes 1, 1<1>, 1<11> &c. are operated in turn against the action of springs 5 by a cam 3 traversed on a screwed spindle 2 by gearing from a reversible electric motor 7. The electrodes are connected in parallel to one terminal of the same transformer secondary and the work is connected to the other terminal preferably through a bar or a number of electrically connected electrode points. After electrode 1 engages the work, the switch is connected to effect the first weld, whereupon the second electrode 1<1> is applied to the work, after which the first electrode is retracted. Welding is continued in this manner to the end of the work and finally projections 8, 9 on the cam operate one of the cut-out switches 10 of the transformer and one of the reversing switches 11, 12 of the motor. In another form, alternate electrodes 1 &c., which are operated in a similar manner to those in the first form, are connected to the opposite. poles of the transformer so that they engage the work in pairs, the work conducting the current from one electrode to the next.
Patent GB-576337-A (GB)
Title: Improvements in or relating to propeller blades
IPC: B64C11/24
Filed: 1943-12-28
Abstract: 576,337. Propeller blades. UNITED AIRCRAFT CORPORATION. Dec. 28, 1943, No. 21743. Convention date, April 23. [Class 114] [Also in Group XXII] A metal propeller blade comprises a central tubular member 10 progressively flattened towards the tip, a covering member 12 of airfoil shape, the contacting surfaces of the two members being connected longitudinally on opposite sides by brazing, welding or soldering along laterally spaced lines, and the non- contacting walls of the flattened portion of the tubular member being well rounded. The wall thickness of the two members may decrease gradually from the shank to the tip, and a plate 18 may close the hub end of the covering member.
Patent GB-271305-A (GB)
Title: Improvements in or relating to caps for canisters and bottles
IPC: B65D41/04
Filed: 1926-09-03
Abstract: 271,305. Barnsley Canister & Engineering Co., Ltd., and Pickering, J. W. H. Sept. 3, 1926. Cap stoppers, screw; screw stoppers formed to aid withdrawal.-In a cap for canisters and bottles having a threaded neck, the cap comprising a top and flange pressed or stamped from sheet metal the flange b of the cap a is formed with three or more lacets c provided with internal projections d formed by indenting the facets. The indentations are arranged in progression to correspond to the threads on the neck.
Patent GB-984135-A (GB)
Title: Piston for a hydraulic pump
IPC: F01B3/00
Filed: 1961-06-16
Abstract: 984,135. Connecting rods. PLESSEY CO. Ltd. June 16, 1961 [June 18, 1960], No. 21818/61. Heading F2T. The end 8 of a connecting rod 10 bears against a surface 7 provided on an auxiliary piston 3 sealingly displaceable, in an axial bore 2 in the main piston 1, e.g. of a pump, against the pressure of a spring 5 located between the auxiliary piston and the bottom 4 of the bore, the auxiliary piston being provided with a through bore 9. The fluid to be pumped surrounds the piston on all sides and serves as lubricant between the bearing surfaces of the auxiliary piston and connecting rod. A ring 6 is interposed between the auxiliary piston and the bottom 4 of the main piston bore. Alternatively, the auxiliary piston is provided with a recess on its end facing opposite the bottom 4. The auxiliary piston may be of porous, e.g. sintered, material which may be soaked by the fluid. The connecting rod 10 is supported by its spherical head 8 on a member 12 held in the main piston by a spring ring 11. During the forward stroke of the piston movement of the auxiliary piston against the spring 5 causes fluid in the space between the auxiliary piston and the bottom 4 to be forced through the bore 9 and between the bearing surfaces 7, 8. The amount of fluid forced through is related to the compression sustained by the spring which is selected so that it is fully compressed at maximum pump delivery pressure. During the return stroke the auxiliary piston is returned to its original position whereby fluid flows past the bearing surfaces into the space between the auxiliary piston and the bottom 4 since pressure between the bearing surfaces is relieved.
Patent GB-336310-A (GB)
Title: Improvements in refrigerating safes and chests
IPC: F25D3/02
Filed: 1929-07-16
Abstract: 336,310. Munters, A. J. E. July 16, 1929. Refrigerators, domestic, shop, and like. - Milk &c. is stored in vessels supported on a shelf 6 secured to the inside of the door of a refrigerator cooled by volatile fluid circulating in a pipe 17 disposed in an ice or freezing-mixture container 16 and having limbs 18, 19 depending between the vessels. Metal plates 20, 21, 22 secured to the limbs contact with the vessels, which are provided with draw-off taps 8 and helical stirrers 24 actuated through flexible shafts 26 from outside the refrigerator. In a modification, a cylindrical refrigerator having a semicircular door is adapted to store one vessel.
Patent GB-687466-A (GB)
Title: Self-leveling storing and dispensing apparatus
IPC: A47F3/022
Filed: 1951-09-18
Abstract: 687,466. Advertising. AMERICAN MACHINE & FOUNDRY CO. Sept. 18, 1951 [Dec. 23, 1950]. No. 21891/51. Class 3 (ii). [Also in Groups XVII and XXX]. A constant level cantilever platform supporting frame 20 has a carriage 28 with rollers 30, 32, 34 for engaging an upright post 22 for up and down movement. A chain 36 is secured to the carriage and framework 12 passing over pulleys. 38, 40, the pulley 40 being connected to the base of the frame by a spring 44 activated to maintain the top level of material on the platform at a constant height. The post 22 is mounted in an upright 12 and is enclosed by front and rear members 16 and 14. The frame 20 has extensions 54 which engage channels 51. Channels 53 accommodate advertising matter 52. In an alternative form without a chain, compressed springs are connected between the platform and base, and the springs may be of different diameters to telescope in use. Specifications 530,590 and 610,338, [both in Group XXX], are referred to.
Patent GB-676062-A (GB)
Title: Reinforced wheels or rims for tires
IPC: B60B3/06
Filed: 1950-09-06
Abstract: 676,062. Coupling rotary parts. WINGFOOT CORPORATION. Sept. 6, 1950 [May 6, 1950]. No. 21942/50. Class 80 (ii). [Also in Group XXXIV] In wheel rims, stated to be particularly adapted for use on aircraft landing-wheels, the tyre-retaining flanges are reinforced by means of stiffening-rings. As shown in Figs. 6 and 7, the reinforcing-ring 21, having a coned seating 26 on the inside of the rim flange portion 20, and further secured by pins 22, is formed with teeth 23 for splined engagement with the edge of a brake-disc 24.
Patent GB-659089-A (GB)
Title: Improvements relating to pipe joints and couplings
IPC: F16L41/02
Filed: 1948-08-20
Abstract: 659,089. Pipe joints. WALSH, R. Aug. 20, 1948, No. 21961. [Classes 99(i) and 99(ii)] In a joint for pipes B, C, in which either or both pipes pass through a stuffing- box joint containing rings such as leather washers L, M, compressible upon the pipe by a union nut E, the inner face of the nut bears against a spring ring G which is positioned in a groove disposed in the pipe, in a collar J soldered thereon, or in the fitting A, so as to keep the pipe in position when the nut is tightened, and a screw plug or cap K is fitted opposite each pipe to permit access thereto for cleaning. The washers L have a conical face and a flat face and one or more washers M are interposed between the flat faces whilst the conical faces abut against like faces on the fitting A and a metal ring O respectively. In a modification for aligned pipes, Fig. 3 (not shown), the caps K are dispensed with.
Patent GB-1393022-A (GB)
Title: Egg substitute and products made therefrom
IPC: A23L13/00
Filed: 1972-05-11
Abstract: 1393022 Egg substitute NEO PROTEINS INC 11 May 1972 [17 May 1971] 22212/72 Heading A2B A high protein egg substitute base comprises a base material including texturing agents such as emulsifiers a non-elastic type protein material being the intermediate product described in Specification 1314595, and a milk derivative protein such as sodium caseinate. Also present may be fillers, such as wheat flour and carbohydrates and or saccharates such as dextrose and corn syrup, alginates, and appearance and flavouring agents. The substitute may be used wholly or partly in place of eggs in inter alia baked goods, meal products and gravies salad dressings and pasta.