baber/WOPTO huggingface dataset:
Patent GB-1465487-A (GB)
Title: Oleo-pneumatic vehicle suspension struts
IPC: B60G15/12
Filed: 1973-04-24
Abstract: 1465487 Hydropneumatic shock absorbers; valves JONAS WOODHEAD Ltd and AUTOMOTIVE PRODUCTS Ltd 11 April 1974 [24 April 1973] 19292/73 Headings F2S and F2V A hydropneumatic vehicle suspension strut comprises an inner cylinder 2, a piston-rod guide 5 through which passes a piston-rod 4 carrying a piston 3 reciprocatable in the inner cylinder, an outer cylinder 1, rigid with an end connection 9, surrounding the inner cylinder to provide an annular chamber, a movable wall 12 dividing the annular chamber into a liquidcontaining chamber 14 in communication with the interior of the inner cylinder 2 and a pressurized gas containing chamber 13, the inner cylinder 2 being connected at one end to the piston-rod guide 5 and having its other end located with respect to the outer cylinder by a resilient ring 40, 43, 44. The resilient ring is formed as a bead on the separating diaphragm 12. The end closure 38 for the inner cylinder is not joined to the end closure 8 for the outer cylinder but is formed with a complementary flange 41, 42 for mating with the resilient bead. The resilient bead compensates for any lack of concentricity in the components as manufactured. The strut may be self-levelling in response to internal or external regulation (not shown), liquid being introduced or exhausted through a unit 54. Valves.-In the modified piston of Fig. 2, a flexible valve element 84 controlling flow in one direction seats on a flexible valve element 82 controlling flow in the opposite direction. On flow upwards through the piston, the valve element 82 lifts off its seat 83 on the piston. On flow in the opposite direction, the valve element 84 lifts off the valve element 82 to uncover apertures 85.
Patent GB-650342-A (GB)
Title: Improvements in or relating to the conversion of bhilawan shell liquid to a non-vesicating drying product for the manufacture of lacquer varnish, stoving enamels, water-proofing or like materials
Filed: 1948-07-20
Abstract: A mixture of Bhilawan Shell oil, a vegetable oil, and turpentine or rosin is converted to a non-vesicating drying product (suitable after solution in a mixture of benzene or white spirit with turpentine, as a lacquer) by treatment with nitric acid or with a mixture of saltpetre and hydrochloric acid. Vegetable oils mentioned are groundnut oil and linseed oil. Cooling is applied during the reaction.  The product is washed, if desired with ammoniated water, pressed dry and dissolved to yield a coating composition.  Exposure to sun or infrared radiation speeds up drying.  Specification 653,037 is referred to.
Patent GB-1164538-A (GB)
Title: Press
IPC: B29C43/00
Filed: 1967-04-27
Abstract: 1,164,538. Mechanical presses. CHANDLER & PRICE CO. 27 April, 1967 [19 Jan., 1967], No. 19499/67. Heading B5F. In a press having drive means for moving a bed 43 and platen 29 together and apart, the drive means comprising a drive shaft 9, flywheels 11, 13 on opposite ends of the shaft, clutches 12, 15 connecting the flywheels to the shaft, a drive unit (19) connected to one of the flywheels, and a brake 22 for the shaft, means is provided responsive to coming together of the bed and platen to disconnect the clutches and apply the brake, and hold the bed and platen together while one flywheel continues to be driven by the drive unit and the other freewheels. The press described is for embossing, printing and the like. The means for disconnecting the clutches comprises an adjustable stop 70 on the platen 29 which engages a limit switch 71 on the bed 43, the switch 71 being connected in a control circuit seen in Fig. 6 (not shown). Movement of the platen 29 from the position seen in Fig. 4 (not shown) to that in Fig. 3 is effected by a cam follower 31 riding in a cam slot 32 in a gear 26 which is rotated by a pinion 24 on the shaft 9. The cam follower 31 is carried by a rocker arm 30 extending from a shaft 28 on which the platen 29 is mounted. Movement of the bed 43 about its pivot (44), Fig. 2 (not shown), is effected by links 40, (41) eccentrically connected to the gears 25, 26.
Patent GB-517730-A (GB)
Title: Improvements in mercury tube switches
IPC: C07F7/18
Filed: 1938-07-01
Abstract: 517,730. Mercury switches. BURGESS, A. F. (Adlake Co.). July 1, 1938, No. 19517. [Class 38 (v)] Inside a glass envelope 10 holding mercury 15 is disposed a displacer 16 of glass or quartz carrying a ferro-magnetic armature 17 fixed to it by springs 19 which also act as buffers and which has guide projections 22. The switch is held between poles 23, 24 of an electromagnet which when energized, pulls down the displacer 16 to cause the mercury to bridge contacts 11, 12 made of tungsten, molybdenum or tantalum. To prevent the deleterious effects of current carrying iron on the mercury, the armature 17 and any other parts of ferromagnetic material within the switch are coated with an oxide of iron by being heated in a stream of oxygen or by the Bower- Barff or Russia oxidising processes.
Patent GB-646931-A (GB)
Title: Method and apparatus for heating steel
IPC: F27B9/36
Filed: 1947-07-22
Abstract: Steel billets, ingots &c. are moved intermittently through a combined preheating and slow heating zone and a final rapid heating zone, the zones being separately fired and draughted.  The design of furnace, (see Group XII), is such that the first zone can be heated by separate burners above and below the steel, and in both zones the burners and draught openings are so disposed that the flame travels across the furnace chambers in a plane parallel to the steel but shielded from contact therewith by returning combustion products.
Patent GB-1499523-A (GB)
Title: Lithiated metal chalcogenides and preparation thereof
IPC: H01M10/39
Filed: 1975-05-09
Abstract: 1499523 Lithiated metal chalcogenides EXXON RESEARCH & ENG CO 9 May 1975 [12 July 1974 30 Sept 1974] 19649/75 Heading C1A [Also in Division H1] A lithiated metal chalcogenide is prepared from a metal chalcogenide of the formula MZy wherein: M is a metal selected from Group IVB, Group VB elements of the Periodic Table of the Elements (Ti, Zr, Hf, V, Nb, Ta), molybdenum, tungsten, technetium, platinum, rhenium, germanium, tin, bismuth, gallium and lead; y is a numerical value between 1À0 and 4À0; and Z is an element selected from sulphur, selenium and tellurium, provided that when M is vanadium and y is 2, Z is selected from selenium and tellurium only; by lithiating the metal chalcogenide by contacting said metal chalcogenide with a lithium compound selected from LiR 1 , LiC(R 1 ) 3 , LiN(R 1 ) 2 , LiBH(R 1 ) 3 , LiR 1 .R 2  and LiAlH 4 .R 2 , wherein R 1  is a hydrocarbon radical having from 1 to 8 carbon atoms and R 2  is a chelating polyamine. the lithiation being conducted under conditions of ambient atmosphere. temperature and time which facilitate the formation of the lithiated metal chalcogenide. The product may be an intercalated metal chalcogenide having the formula Li x MZ y  wherein: M is a metal selected from Group VB elements of the Periodic Table (V, Nb. Ta), zirconium and hafnium, Z is selected from S and Se, provided that when M is vanadium Z is Se; y is between 1À67 and 2À02; and x is between 0À8 and 1À2. Alternatively the product may be an intercalated metal chalcogenide having the formula Li x MZ y  wherein M is Ti; Z is S; y is between 1À67 and 2À02; is between 0À8 and 1À2; and the chalcogenide is free from nitrogen compound contaminants.
Patent GB-256776-A (GB)
Title: An optical device for extending the field of view of the driver of an automobile vehicle
IPC: G02B23/08
Filed: 1925-08-04
Abstract: 256,776. Gandell, W. R. K. Aug. 4, 1925. Addition to 2456,011. Look-out reflectors and like observation devices.-In a modification of the arrangement described in the parent Specification for enabling a vehicle driver to obtain an early view of a cross road which he is approaching, the light from the objects seen is received by a convex mirror or concave lens and transmitted to one or more plane reflecting surfaces and thence to the driver, so that no lateral inversion occurs. In the construction shown, means for obtaining a view both to the right and left hand sides of the road are combined in a single casing, which may be hinged for adjustment purposes, the optical system shown in Fig. 1 comprising convex mirrors A<1>, A<2> and co-operating plane mirrors C<1>, C<2>, while the system shown in Fig. 3 comprises concave lenses F', F<2> and plane mirrors G<1>, H<1>, G<2>, H<2>, An auxiliary or viewing lens may be arranged near to the driver as described in the parent Specification. The device may be mounted at the back of a motor-car to assist drivers when backing into a side street or garage, or it may be arranged on an aeroplane to give the pilot a view above or below the plane, or it may be supported in a fixed position at street corners or cross roads for assisting the drivers of approaching vehicles.
Patent GB-1215357-A (GB)
Title: Improvements in and relating to electrochemical cells
Inventor: HART JOHN CHARLES HUMPHREYS
IPC: H01M10/50
Filed: 1968-04-25
Abstract: 1,215,357. Cooling metal/oxygen batteries. ENERGY CONVERSION Ltd. 10 Feb., 1969 [25 April, 1968], No. 19738/68. Heading H1B. A metal/oxygen battery comprises a plurality of cells arranged with the cathodes of pairs of cells facing each other and spaced apart to allow passage of sufficient oxidant gas to maintain depolarization of them, and cooling means associated with their anodes. As shown in Fig. 1 cathodes 12 in a pair of adjacent cells face one another across space 13 which permits air to reach and depolarize cathodes 12. Each anode 11 faces an anode 11 of an adjacent pair of cells across a space 14 which permits cooling fluid to reach and cool the cooling members 15 attached to anodes 14. The cooling members 15 carry cooling fins 15a. In other embodiments: the cooling members extend around reservoirs for electrolyte to increase the available area (Fig. 3, not shown); the anodes make thermal but not electrical contact with internal cross members of the casing fabricated from material of good thermal conductivity (Fig. 4, not shown); cooling fluid is forced through spaces 14 via inlet and outlet manifolds (Fig. 5, not shown); and each anode 11 is common to two cathodes 12 and is provided with ducts for the passage of coolant (Fig. 6, not shown). Coolants specified are air, water and electrolyte.
Patent GB-205565-A (GB)
Title: Improvements in or relating to the production of rubber filaments or threads
IPC: B29D99/00
Filed: 1922-07-18
Abstract: 205,565. Draemann, M. July 18, 1922. India-rubber threads; vulcanizing.- India-rubber filaments c of round section are extruded from a press b on to a conveyer d whence they are led past a drying device e to evaporate solvent into a bath f of molten sulphur or other medium liquid at 130‹ C., such as a solution of zinc or magnesium chloride, or a fusible metal or alloy, heated to 130‹ C., and is then coiled on a drum h. When a sulphur bath is employed, pure rubber may be used, or 10 per cent of sulphur may be added to the paste prior to extrusion. A second belt g runs through the bath against which the filaments. are pressed by their buoyancy. Chains or lateral walls may be provided between the belts d, g to carry the liquid along during their passage through the bath and so eliminate tension on the filaments. If desired the belt d may be so arranged that it does not pass through the bath.
Patent GB-147744-A (GB)
Title: Improvements in boots and shoes
IPC: A43B13/28
Filed: 1920-07-08
Abstract: 147,744. RÚnÚ (nee TaillandiÚ), H. March 13, 1918, [Convention date]. Connecting uppers to soles.-A shoe upper b is nailed to a shaped and rabbeted wooden sole, and a leather strip c is nailed round the sole, as shown, to give the appearance of a leather sole. The upper has a narrow strip of leather e, Fig. 2, nailed over it, and is treated with a waterproof cement before attachment. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a construction, Fig. 2 (Cancelled), in which the edge of the sole is not rabbetted for the reception of the edge of the upper. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specifications 17613/91 and 136,371.
Patent GB-199621-A (GB)
Title: Improvements in apparatus for preventing the bursting by freezing of radiators or engine jackets of motor cars and the like
IPC: F16L53/00
Filed: 1922-07-18
Abstract: 199,621. Jonsson, G. E. July 18, 1922. Pressure-relieving devices for fluid.-Water is emptied from a, cooling system by the rupture of a brittle part of it upon some of the water freezing. Upon the base of the radiator 13 is placed a vessel 1 with a glass bottom 4 upon which rests a plunger 3 supporting a loose piston 2. Water circulates through the vessel, entering past a valve 5, and passing through small channels 15 in the piston. The water in the channels tends to freeze first and block them, causing the expansion of the water above the piston to depress it and the plunger to break the glass.
Patent GB-750574-A (GB)
Title: Lubricant distributor
IPC: F16N27/00
Filed: 1954-07-06
Abstract: 750,574. Lubricating. ATVIDABERGS SPARVAXLAR & SIGNALFABRIKS AKTIEBOLAG. July 6, 1954 [July 8, 1953], No. 19775/54. Class 12 (3). A lubricant distributer adapted on each pressure stroke of a feed pump to feed lubricant to one or more points, comprises a pump piston 8 and a valve slide piston 12 in cylinders which are in communication with each other, the piston 8 being pressed outwardly by a spring 11 towards the feed pump, and the piston 12 being pressed away from the lubricating point by a spring 13. The head of the piston 8 is located in a chamber 7 which is connected by a duct 18 to the cylinder 6 of piston 12, which is formed with an axial passage 15, a diametral passage 16 and a peripheral groove 17. When the chamber 7 is put under pressure from the feed pump, the valve piston slide 12 is moved outwardly until communication between the duct 15 and the groove 17 is broken. Then the oil pressure causes the piston 8 to be moved inwardly against the action of the spring 11 and the lubricant in cylinder 5 presses the piston slide 12 further out of the cylinder 6, so that eventually the groove 17 emerges into the space 14 and lubricant passes to space 14 and to the lubricating point.
Patent GB-841862-A (GB)
Title: Improvements in or relating to electric welding equipment
Inventor: HATTY WILLIAM PATRICK HAMILTON
IPC: H01F38/08
Filed: 1955-07-08
Abstract: 841,862. Supply systems for welding arcs; automatic arc control systems. LINCOLN ELECTRIC CO. Ltd. Oct. 8, 1956 [July 8, 1955], No. 19882/55. Class 38 (4). An electric arc-welding system is fed from a source having a constant or rising voltampere characteristic, the source comprising a transformer arrangement consisting of a main transformer 10 having primary and secondary windings 11, 16 and two auxiliary transformers 13, 14 which have a common primary winding 12 and separate secondary windings 17, 18. The primary windings 10, 12 are connected in parallel and the secondary windings 16, 17, 18 in series, the winding 17 assisting the main secondary winding 16 whilst the winding 18 opposes it. The transformer 14 further comprises a direct current biasing winding 20 energized in dependence on the load current by means of a current transformer 21, a rectifier 22 and choke 23. Thus an increase in load current increases the saturation of the core of the transformer 14 so that the opposing voltage induced in the winding 18 decreases by such amount as to give an overall voltage at the terminals 19 which is constant or slightly rising. A three-phase embodiment is also described. According to the Provisional Specification the source may be a dynamoelectric machine.
Patent GB-1176264-A (GB)
Title: New Dialdehyde-Ketone Polycondensates
Inventor: QUENTIN JEAN-PIERRE
IPC: C08G4/00
Filed: 1968-04-26
Abstract: 1,176,264. Polymers from aldehydes and ketones. RHONE-POULENC S.A. 26 April, 1968, No. 19944/68. Headings C3R and C3P. The invention comprises polymers containing both units of formula and of formula where R is m-phenylene, p-phenylene or p-diphenylene and may be substituted by halogen, n is 0 or 1, R<SP>2</SP> is a radical of formula where M is a transition metal and R<SP>1</SP> and R<SP>3</SP> are hydrogen or aliphatic or cycloaliphatic hydrocarbon radicals or, when n is 0, are linked to form a polymethylene chain. The polymers are obtained by reacting a dialdehyde of formula with a ketone of formula in the presence of a base in solution in immiscible solvents by interfacial polycondensation, the solvents being such that no one solvent dissolves all three of the dialdehyde, ketone and base. The polymers may be cured by heating alone at above 100 or by heating with compounds having ethylenic double bonds, in the latter case compounds generating free radicals may be present. In examples polymers are prepared from acetone, terephthaldehyde and caustic soda using water and benzene as solvents, and are reacted with divinyl adipate, with divinylbenzene and with 1,3,5,7-tetramethyl- 1,3,5,7 - tetravinylcyclotetrasiloxane, in the presence of azobisisobutyronitrile and dicumyl peroxide; and a polymer is prepared by reacting terephthaldehyde, 1,1-diacetylferrocene and sodium hydroxide using water and benzene as solvents. Other dialdehydes, ketones, bases and ethylenic compounds are mentioned.
Patent GB-478214-A (GB)
Title: Improvements in and relating to the automatic control of the speed of electric motors
IPC: H02P25/18
Filed: 1936-07-18
Abstract: 478,214. Automatic control systems ; electric switches. PITT, M. July 18, 1936, No. 19981. [Class 38 (iv)] [Also in Group XXXVII] Speed-To keep an electric motor 1 at a substantially constant speed an impedance 24 is switched into its circuit at a given speed by a centrifugal governor 3 which is arranged to separate two spring bows 13, on which contacts 15 are arranged. The force required for this may be adjusted, for example, by a spring 16 and a screw 17. In a modification, Fig. 2 (not shown), a blade spring is adjusted by a cam associated with a calibrated indicator of speed. The abutment 14 of the bow springs may be adjustable. The switch may control a relay operating on the impedance.
Patent GB-540081-A (GB)
Title: Improved electrical circuit arrangement for converting a voltage or current which rises in a non-linear manner into a voltage or current rising substantially linearly
IPC: H03K4/10
Filed: 1939-07-10
Abstract: 540,081. Valve generating circuits; impedance networks. GES. ZUR FORDERUNG DER FORSCHUNG AUF DEM GEBIETE DER TECHNISCHEN PHYSK AN DER EIDGENOSSISICHEN TECHNISCHEN HOCHSCHULE. July 10, 1939, No. 20073. Convention date, July 10, 1938. [Classes 40 (iii) and 40 (v)] A non-linear saw-tooth voltage or current has its linearity improved by a correcting network comprising pairs of condensers C1, C2, and resistances R1, R2 in parallel therewith as in Fig 3, or pairs of resistances R1, R2 and inductances L1, L2 in series therewith as in Fig. 4. In Fig. 3, 3 the linear voltage is obtained from terminals U2 and in Fig. 4 the linear current is obtained in the inductance L2. Equations relating the values of C, L and R in the two networks are given.
Patent GB-1171058-A (GB)
Title: Improvements in or relating to Aircraft Control Systems.
Inventor: ANDEEN RICHARD ELMER
IPC: G05D1/08
Filed: 1968-04-29
Abstract: 1,171,058. Electric control systems. SPERRY RAND CORP. April 29, 1968 [May 19, 1967], No.20122/68. Heading G1N. Movement of the control stick 1 of an aircraft 8 to produce a change in pitch is sensed by a displacement sensor 20 and force sensor 21, and the difference between the two signals is derived at 23 to augment the control of the elevator 7 via actuator 6, whereby the displacement signal predominates at low speeds and the force signal at high speeds. A pitch damping signal is obtained from a pitch rate gyro 14 and fed through a lag compensation circuit 18 to a summing amplifier 15 to oppose the difference between the displacement and force signals from the control stick 1. Steady pitch change signals are removed by series capacitors 17, 24. The resultant elevator control signals produce desired stability characteristics over a wide range of flight conditions.
Patent GB-1243148-A (GB)
Title: Slide stack handling apparatus for projectors
Inventor: HANSEN DAVID ELWOOD
IPC: G03B21/54
Filed: 1969-04-22
Abstract: 1,243,148. Magazine slide projectors. EASTMAN KODAK CO. April 22, 1969 [May 1, 1968], No.20451/69. Heading G2A. In a stack-loading slide projector, the stack of slides 22 is held between pads 28 on the inner faces of the two resilient walls 26 of a U-shaped holder 24, the slides being released into supply chamber 16 between guide rails 36 when the holder is pressed down on to the rails to force walls 26 apart as cam followers 32, 34 engaged inclined surfaces on the rails and snap into grooves 50, holder 24 being slidable along these grooves, when all slides have passed into the take-up chamber 18, until followers 32, 34 enter recesses 52, 54 to allow walls 26 to grip the slide stack again. Holder 24 may then be removed with the slides and placed for storage on a cup-shaped receptacle with slide retaining end walls.
Patent GB-880088-A (GB)
Title: A microwave ferrite device
IPC: H01P1/32
Filed: 1960-06-10
Abstract: 880,088. Waveguide Faraday rotators. BENDIX CORPORATION. June 10, 1960 [June 22, 1959], No. 20524/60. Class 40(8). The field coil 21 of a microwave ferrite device, e.g. a Faraday rotator, is connected in circuit with a choke coil 22 and capacitor 23 whereby, when the field current is interrupted by switch 17, a damned oscillatory current is produced in the field coil and the ferrite element is demagnetized. In the magnetized state, the device may be adjusted to produce a given rotation, e.g. 90 degrees, of the plane of polarization of energy transmitted through a waveguide containing the ferrite element. In the demagnetized condition, the rotation is zero. In the modified circuit of Fig. 4, a two way switch 17<SP>1</SP> enables the capcitor 23 to be connected to the source 18 through a separate resistor 25. This enables the value of the shunt resistance across the oscillatory circuit to be reduced.
Patent GB-249068-A (GB)
Title: Improved wired radio on power lines
IPC: H04B3/56
Filed: 1925-08-17
Abstract: 249,068. Wired Radio, Inc., (Assignees of Duncan, R. D.). March 12, 1925, [Convention date]. Transformers.-In order to improve the efficiency of the normal type of power transformer for transmitting high - frequency signalling currents, when these are superposed on existing power circuits, an auxiliary inductance 16 is inserted in series with the primary winding 3. The value of the auxiliary inductance is so - chosen, in combination with the shunt winding capacity of the primary, as to reduce the overall 'impedance across the lines. 1, 2 to the extent necessary to secure a sufficient transfer of highfrequency current to operate a signal receiving set 11.
Patent GB-585189-A (GB)
Title: Improvements in building materials
IPC: C04B28/14
Filed: 1944-10-25
Abstract: A material for use as a moulding for electric wire coverings, cornices, picture rails, skirtings, dados, or the like is formed of plaster and comminuted fibrous material such as sawdust, wood chips, paper, or similar material together with a reinforcement, the body and reinforcement being of such a nature that they can be easily worked with ordinary wood-working tools.  The plaster and sawdust &c. are mixed together in the ratios of 50-70 : 50-30 and sufficient water is added to render the mixture pourable.  It is then poured into a cast-iron mould of desired shape and the reinforcing-material, e.g., cardboard, asphalt-saturated felt, strawboard, fibreboard, or soft metals such as lead, which may be perforated to reduce weight, are inserted.  The reinforcing-material may be solid or tubular, but is preferably in strip form, either flat, curved, angular, or sinuous as desired, and may be arranged in side-by-side or edge-to-edge relation.  Screw or nailholes may be formed in the material during moulding.