baber/WOPTO huggingface dataset:
Patent GB-1262021-A (GB)
Title: System for controlling skidding of a braked wheel
IPC: B60T8/176
Filed: 1970-06-02
Abstract: 1,262,021. Antiskid braking systems. BENDIX CORP. 2 June, 1970 [27 June, 1969], No. 26459/70. Heading F2F. An antiskid braking control system for vehicles such as aircraft comprises operatoroperated means for producing a commanded brake pressure, a wheel speed sensor 20 such as an A.C. tachogenerator whose frequency is proportional to the instantaneous wheel speed, this A.C. signal being demodulated to produce a D.C. voltage varying with wheel speed, a differentiating circuit 24 to convert the velocity signal to a rate of change of angular velocity signal, a pulse generator 56 responsive to the latter, when its value exceeds a predetermined threshold, to produce an output pulse of substantially constant magnitude and duration, a constant voltage and summing means 76 in which the output pulse is added to the constant voltage, means 82 integrating the output signal therefrom and means including a time constant circuit 32 responsive to the first signal for producing a wheel speed reference signal, a multiplier 44 multiplying the integrated output signal with the speed reference signal to produce a wheel speed command signal, means comparing the latter with the first signal to produce an error signal and control means 68 responsive thereto for modifying the braking pressure. As shown, the instantaneous velocity of each of a plurality of wheels is sensed, the electrical signals produced are each compared with the output of the time constant circuit 32 and summing means including unidirectional current conducting devices are provided at the input to the time. constant circuit so that only the signal representative of the highest wheel angular velocity is supplied to the circuit.
Patent GB-289108-A (GB)
Title: Improvements in or relating to signalling devices for use on automobiles or other vehicles
IPC: B60Q1/34
Filed: 1926-10-22
Abstract: 289,108. Birenberg, H. Oct. 22, 1926. Road-traffic signals on vehicles.-In semaphore signalling apparatus for motor vehicles a tubular frame 1 serving as a semaphore arm carries a circular lamp chamber 3 and is counterbalanced by a weighted segmental portion 7, the arrangement being such that the arm normally tends to rise into a vertical position but may be arrested in any intermediate position by a stop through the medium of Bowden wire mechanism. The stop is normally held by spring means at the inoperative position of the semaphore arm and the Bowden wire mechanism moves it against the resistance of the spring. The stop when moved from its normal position also frees a spring-controlled switch for the lamp circuit. The lamp chamber 3 and the interior 2 of the frame are provided with red, white or green transparent material. The lamp 4 is spring-supported as indicated in Fig. 3. The hub of the semaphore arm is provided with ball bearings in side plates 9, 10, one plate 9 having a boss 12 for the electric lamp wires and the other 10 having a boss 17 for a spring drum 18, Fig. 11. The drum 18 is rotated by a Bowden wire against the action of a spring 29 through a friction clutch device 31 and carries a pin 19 which is in an arcuate slot adjacent a pin on the hub piece 6, Fig. 3, and also normally presses an ebonite button against a rocker arm to maintain open.the circuit of the lamp. The operating device C, Fig. 12 is provided with a boss 37, Fig. 13 for attachment to some part of the vehicle as by a bracket, and consists of a casing 36 with a cover plate 38 integral with the operating-lever 39. The casing has two lugs, 42, one for each Bowden wire casing, the Bowden wires each passing round a drum 43 and being maintained in position by a projection in the drum, which divides the casing into two separate housings. Each Bowden wire is knotted at the end and is engaged by a corresponding lug on the drum so as to be operated in one direction only. A number of depressions in the casing are provided for engagement of a spring-pressed ball 48 in the various portions of setting the lever 39. Movement of the lever from the neutral position operates one of the wires to wind it up on the drum and stop the corresponding semaphore arm in the required position the other arm remaining in its imperative position.
Patent GB-245239-A (GB)
Title: Improvements in thermionic valves
IPC: H01J9/42
Filed: 1924-11-06
Abstract: 245,239. Radions, Ltd., and Osborn, H. J. Nov. 6, 1924. Vacuum tubes. - Means for preventing the unauthorized use of a valve comprises a seal with a sheath, wire, coil, cap, or disc applied to one or more terminals so as to short-circuit them or prevent their insertion in a circuit without breaking the seal. In one arrangement a wire is wound around two or more terminals and the ends are sealed, for instance by lead. As shown, a perforated metal plate C fits over the terminals a, and is secured to the cap by a wire b, having its twisted ends sealed at B. In other arrangements, a metal disc inserted in a slit terminal, or a cap placed over a terminal, is secured and sealed in a similar manner.
Patent GB-1393812-A (GB)
Title: Spring suspension unit for a pneumatic or hydropneumatic  suspension system for vehicles
IPC: B60G17/048
Filed: 1972-06-07
Abstract: 1393812 Self-levelling suspension units V LANGEN [trading as LANGEN & CO] 7 June 1972 [9 June 1971] 26618/72 Heading F2S A self-levelling suspension unit has a threeway level control spool valve 14 acted on, indirectly, by two springs 12, 7 so as to isolate the load-carrying pressure chamber 19 when the unit is the desired length, connect it to exhaust T when the unit is extended, and connect it to a pressure source P when the unit is contracted, one spring 12 permanently urging the valve 14 into one of its open positions (to exhaust T) and the other spring 7, over a part of the stroke of the unit, urging the valve 14 into the other of its open positions (to source P). The springs 12, 7 are required to act on the valve 14 via a transmission member 9 and one or more springs 17, 18. Flow to or from the pressure chamber 19 is required to be through a constriction 21. This, and a channel 22 which communicates with the end face 23 of the spool valve, ensures that the rate of flow of fluid to and from the chamber 19 is independent of the load on the unit. In the position shown in Fig. 1 the unit is extended beyond its desired level, and the compression spring 7 has ceased to act. The permanently acting spring 12 acts through the transmission member 9 and the spring 18 to move the spool valve 14 to connect the pressure chamber 19 with the exhaust T. If (Fig. 2, not shown) the piston 5 re-enters the cylinder beyond the desired level, the spring 7 re-engages the piston 5 and acts through the transmission member 9 and the spring 17 to force the spool valve 14 upwards to close off the connection (T) to exhaust and open the connection (P) to the pressure source. In Fig. 4 (not shown) the intermittently acting spring is a tension spring which is effective only when the unit is extended, and the spool valve is hollow and houses the constriction. Belleville springs may be used instead of helical springs.
Patent GB-1033795-A (GB)
Title: Improvements relating to shelving
IPC: A47B96/02
Filed: 1964-06-26
Abstract: 1,033,795. Shelving. D. M. JAMES. May 12, 1965 [June 26, 1964], No. 26670/64. Heading A4B. A shelf structure has transverse bearer members 1 of upwardly open channelsection upon which are supported wire mesh platforms 4 having dependent legs 7 which enter the channels or metal sheet shelves having dependent flanges to enter the channels.
Patent GB-887083-A (GB)
Title: Improvements relating to axial flow compressors
Inventor: MCKENZIE ARCHIBALD BATHGATE
IPC: F04D19/02
Filed: 1959-08-05
Abstract: 887,083. Axial-flow compressors and turbines. ROLLS-ROYCE Ltd. July 15, 1960 [Aug. 5, 1959], No. 26726/59. Drawings to Specification. Classes 110 (1) and 110 (3). In a multi-stage axial-flow compressor for a gas turbine engine, the final rotor stage is designed for variable work with blade height, whereby the compressor total pressure distribution is matched to the total pressure distribution required by a combustion chamber to provide good combustion in the gas turbine engine. For example, the outlet total pressure may be made constant over the blade height or be given a minimum value at blade mid-height with maximum values near root and tip. Assuming the static pressure to be substantially constant over the blade height, departure of the total pressure from constancy is due to reductions of the axial component of velocity caused by losses at root and tip and can be corrected by increasing the rotor blade exit angle at blade midheight and, it may be, decreasing this angle at root and tip so as to produce a more constant distribution of the axial component of velocity. The variation of the rotor blade exit angle also causes the absolute velocity at entry to the outlet stator blades to be greater at root and tip than at blade mid-height; this allows for the losses at root and tip and permits the axial exit velocity from the outlet stator to be more nearly constant radially. According to the Provisional Specification, the invention may be applied to compressors for other uses, for example, for supplying air to helicopter rotors of the type driven by air jets, or to closed circuit wind tunnels. The invention is also applicable to turbines, particularly in gas turbine engines using reheat.
Patent GB-960875-A (GB)
Title: Process for the manufacture of valuable bright drying polish waxes
IPC: C09G1/08
Filed: 1960-08-02
Abstract: Waxes suitable for polishes are prepared by esterifying in presence of an esterifying catalyst and at raised temperature 1 equivalent of a mixture of montanic acids with one or more dicarboxylic acids or anhydrides with 0.5 to 2 equivalents of one or more dihydric alcohols until the product has an acid number of 5-50. Up to 50 equivalent per cent of the dihydric alcohols may be replaced by higher polyhydric alcohols and/or by oxyalkylation products of polyhydric phenols (including phenol-aldehyde or phenol-terpene resins).  Montanic acid is the mixture of acids obtained by treating montan wax with chromic acid.  The montanic acids or the montan wax from which they are prepared may be mixed with oxidation products of paraffin wax and/or of polyolefines. The montanic acids or the mixtures containing them may be extracted with solvents before use to remove constituents of low molecular weights. Suitable dicarboxylic acids are succinic, adipic, pimelic, azelaic, sebacic, maleic, fumaric, itaconic, phthalic, chlorinated, hydrogenated or alkyl-substituted phthalic. Suitable dihydric alcohols are ethylene, diethylene, propylene, butylene or hexylene glycol; pentane-, nonane- or decane-diol; dimethylol benzene, dimethylol toluene or dimethylol xylene; terephthalic acid bisdecanediol ester.  Suitable replacements for part of the dihydric alcohol are trimethylol propane, trimethylol ethane, pentaerythritol, hexanetriol, or oxyethylation products of 4, 41-dihydroxy diphenylpropane, resorcinol, butylphenol-form-aldehyde resins or terpene-phenol resins.  The waxes may be emulsified with ionic or non-ionic emulsifiers. In examples waxes are prepared from montanic acids together with (1) phthalic anhydride and hexanediol. The product was emulsified in water with the aid of morpholine (2), phthalic anhydride, maleic anhydride and hexane diol, (3), phthalic anhydride, sebacic acid and decane-diol, (4), phthalic anhydride, decanediol and air-oxidised polyethylene, (5) phthalic anhydride, maleic anhydride, and hexane diol.  (6) phthalic anhydride, terephthalic acid bis decane-diol ester and decane-diol.  The wax was emulsified in water with oleic acid and morpholine.  (7) phthalic anhydride, maleic anhydride, hexanediol and the bis b -hydroxyethyl ether of 4, 41-dihydroxydiphenylpropane. (8) phthalic anhydride, maleic anhydride, butanediol and a mono-oxyethylated p-sec-butylphenol-formaldehyde resin.  Examples 9, 10 are broadly similar but use montanic acids prepared from a mixture of montan wax and air-oxidised paraffin wax. Example 11 used a mixture of montanic acids and air-oxidized polyethylene.
Patent GB-468422-A (GB)
Title: Improvements in variable speed and automatic control transmissions, and especially intransmissions for automobile vehicles
IPC: B62M25/00
Filed: 1935-09-28
Abstract: 468,422. Fluid-pressure servomotor-control systems. FLEISCHEL, G. Sept. 28, 1935, No. 26881. Void. Convention date, Sept. 28, 1934. Application for addition to 420,620, [Group XXIV]. [Class 135] [Also in Group XXIV] In transmission gearing for cars there is a " release device " or test lever 21<a>, Fig. 9, for the power operation of the change-speed gearing and a separate " release device " or test lever 21<b> for the control of the main clutch, the combination being under the control of an enginedriven governor, not shown. The governor supplies a force X which shifts the test lever 21b from a contact 24<d> to let in the main clutch. This may be done through a suitable servomotor or magnetic coil. Further governor action causes the test lever 21<a> to engage a contact 23<m> which sets a servomotor going to increase the speed ratio. A manual control is imposed by way of a roller 307 which is moved along between the lever 21<a> and an overlapping reversed lever 308 which takes the thrust X of the governor. This roller 307 is operated from a pedal 48, Fig. 1, through a rod 47 which is retarded in its sliding by a brake 300 so that a balance lever 10 can close the engine throttle F before the roller 307 moves to force a gear change. A complete device is shown in Figs. 26 and 27. The governor 25 upon an engine-driven shaft 26 acts through a push bar 29 on the test lever 21<a> and through a bearing 394 on the test lever 21b. Displacement of the test lever 21<a> cause a servomotor E to turn a speed-changing shaft 81. The shaft 81 carries a cam drum 4b which operates the gear-box 4 and opens the main clutch 3 in unison during changing. The governor control 21b, which lets in the clutch 3 in starting, acts directly on a slide valve 393 controlling the admission to a servo cylinder B of oil from a pump 376 driven by the shaft 26. Instead of the lever 10 of Fig. 1, there is a lost-motion connection at 398, Fig. 26. A manual cam drum 56 adjusts stops 53 for the sliding rod 47. This rod 47, in addition to displacing the change-forcing roller 307, controls a slide throttle valve 316 which governs the speed at which the pumped-oil servomotor E effects the speed changing. There is an accumulator at 378. Displacements of the test lever 21<a> cause solenoids 208<m>, 208<d>, Fig. 27, to be alternatively excited for turning the shaft 81 one way or the other. When the coil 208<m> is excited, a lever 201 is attracted which tilts a pawl 205<m> into mesh with a ratchet 206 fast on the shaft 81, and also tilts a lever 395 which shifts a slide valve 396 of the reciprocating oil motor E. A slide 200 is thus reciprocated up and down which causes the pawl 205<m> to turn the shaft 81 the space of one ratchet tooth for each reciprocation.
Patent GB-478721-A (GB)
Title: Method of and means for increasing effects by oscillations
IPC: C14B1/00
Filed: 1935-09-30
Abstract: <PICT:0478721/III/1> <PICT:0478721/III/2> <PICT:0478721/III/3> <PICT:0478721/III/4> The invention consists in promoting chemical and physical actions in heterogeneous systems by directly subjecting them to oscillations of such frequencies and amplitudes "that solid particles of said substances are elastically strained only so as to prevent rolling motions of the same, but that fluids can still flow and fresh fluid particles pass to and, it may be, through said particles of said substances to be treated." The Specification mentions numerous applications of the invention to the treatment of (1) solid substances, e.g. drying wood, ceramic masses, fabrics, etc.; dyeing fabrics, yarns, etc.; impregnating wood; washing various articles; roasting ores; fermentation and maturing foodstuffs etc.; malting; baking bread; &c., (2) granular materials, e.g. filtering, lixiviating, drying, and combustion processes; (3) finely divided materials, e.g. formation and coagulation of emulsions, &c. Numerous forms of apparatus are described, in which the oscillations are imparted by eccentrically-weighted rotating members 3, Fig. 1, to the containing vessel as in Fig. 1, or to one or more walls 69 of the vessel as in Fig. 36, or to a framework 29, Fig. 15, over which the fabric &c. 30 to be treated is passed, or to plates 81, Fig. 39, immersed in the material and which may be separated by elastic buffers 82 situated one wave-length distant from the plates.
Patent GB-463559-A (GB)
Title: Manufacture of trifluoromethylarylsulphonic acids
IPC: C07C309/39
Filed: 1935-10-01
Abstract: Trifluoromethylarylsulphonic acids are manufactured by treating a trifluoromethylaryl, which contains no amino or nitro group but which may contain other substituents, e.g. a halogen atom or an alkoxy or acylamino group, with sulphur trioxide, if desired in the presence of sulphuric acid monohydrate as a diluent.  The products are intermediates for the manufacture of dyestuffs.  In examples: (1) trifluoromethylbenzene is treated below 0 DEG  C. with fuming sulphuric acid containing 65 per cent of sulphur trioxide and after standing the mass is introduced into a saturated solution of sodium chloride, yielding the sodium salt of the trifluoromethylbenzenesulphonic acid, probably containing the sulphonic acid group in m-position to the trifluoromethyl group; the barium and aniline salts are also described; (2) sulphur trioxide is passed at ordinary temperature into trifluoromethylbenzene and the product is worked up as in (1); (3) 1-trifluoromethyl-4-chlorobenzene is treated as in (1) to produce the sodium salt of the sulphonic acid, probably 1-trifluoromethyl-4-chlorobenzene-3-sulphonic acid; the barium salt is also described; (4) sulphur trioxide is passed into 1-trifluoromethyl-3-methoxybenzene below 0 DEG  C., and after standing the mass is introduced into a saturated solution of sodium chloride rendered alkaline with sodium carbonate, producing the sodium salt of 1-hydroxy-3-trifluoromethylbenzenesulphonic acid and a small amount of the sodium salt of 1 - methoxy-3-trifluoromethylbenzenesulphonic acid; (5) fuming sulphuric acid containing 65 per cent of sulphur trioxide is added to a solution of 1-acetylamino-3-trifluoromethyl-benzene in tetrachlorethane at room temperature, and the mass is heated to 145 DEG  C., cooled and introduced into a saturated solution of sodium chloride, yielding the sodium salt of 1 - acetylamino - 3 - trifluoromethylbenzenesulphonic acid.  Specification 395,227 is referred to.  1 - Trifluoromethyl - 3 - methoxybenzene is obtainable by methylating the corresponding hydroxy compound.
Patent GB-686230-A (GB)
Title: Improvements in and relating to electrical defrosting arrangements for refrigerators
IPC: F25D21/08
Filed: 1951-11-19
Abstract: 686,230. Refrigerating. BRITISH THOMSONHOUSTON CO., Ltd. Nov. 19, 1951 [Nov. 21, 1950], No. 27087/51. Class 29 The evaporator is defrosted by an electric heating element 16 secured to it, and to prevent damage to food &c. supported on a shelf 20 the shelf is spaced from the bottom wall 6 of the evaporator. An upper shelf 12 with a cooling coil 11 in series with the cooling coil 10 around the evaporator is supported on heat insulating brackets 19 fired to the side walls of the evaporator. As shown the lower shelf 20 is corrugated giving line contact at 21 with the bottom wall 6, alternatively it may be dimpled or comprise a wire rack with depending feet. The melt water is collected in a tray sloped so that water condensing on the underside is directed to drain channels on the cabinet walls. The tray may have openings to drain the melt water into these channels.
Patent GB-256825-A (GB)
Title: Improvements in ornaments and decorative articles for automobiles, motorcycles, and other road vehicles and water-craft
IPC: B60R13/00
Filed: 1925-10-29
Abstract: 256,825. Getgood, R. F. Oct. 29, 1925. Wind-propelled toys. - A mascot for roadvehicles or water-craft is formed to represent a butterfly, moth or other winged insect, and comprises a body part A attached to the vehicle and wings B adapted to be moved relatively to the body by the action of the wind upon them and returned to their normal position by means of springs F or weights. The wings are warped to catch the wind and are pivoted on a spindle C mounted on the body. Stops G are provided to limit the movement. In a modification, the wings are attached to two rods which are pivotally mounted on the body and geared together.
Patent GB-139454-A (GB)
Title: Gas-cutting machine
IPC: B23K7/00
Filed: 1919-11-04
Abstract: 139,454. Davis-Bournonville Co., (Assignees of Bucknam, W. C.). Feb. 19, 1919, [Convention date]. Dividing by fusion.-In a gas cutting apparatus of the type in which the torch is mounted in a frame universally movable in a plane and moved in any desired path by a mechanically-driven tracer roller, the torch and tracer are in axial alinement perpendicular to the plane of movement. The torch 11 is carried by the lower bracket 9 of a yoke 8, 9, attached to an arm 6, which is knuclcle-jointed at 7 to a bracket-piece 6<a> on the end of an arm 4, which is pivotally mounted on a post 3 by means of a bracket-piece 5. On a platform 14 of the arm 6 is mounted an electric motor 13 with governor 37, the armature shaft of which has a worm meshing with a worm wheel 16 on a shaft carried by lugs 18 on the bracket 8. Worm gear 19, 20 and bevel gear 22, 23 rotate a sleeve 24 on a fixed shaft 25, which is screwed to the body 31 of an electro-magnet 32. The magnet core 29 is pinned to the sleeve 24 and its lower end is knurled to form a tracer roller which is held magnetically in contact with a templet 36 secured to the post 3. At the beginning of the cutting operation, the tracer is held in contact with the inclined edge 41 of a pivoted switch piece 38 engaging a stop pinion 40, and in rotating the tracer it rolls on the switch piece and then round the templet, and finally engages the brass or other non-magnetic backing 42 on the switch-piece, which is turned round into the position shown in dotted lines. The motor circuit may be controlled by a switch 45 or by a switch 46 on the torch connected with the valve for controlling the cutting oxygen.
Patent GB-933842-A (GB)
Title: Electrical connections to thin conductive layers
Inventor: ACTON JOHN REGINALD
IPC: H01B1/00
Filed: 1961-07-27
Abstract: 933,842. Direct connections between conductors. ERICSSON TELEPHONES Ltd. May 15, 1962 [July 27, 1961], No. 27182/61. Class 38 (1). In a connection between a thin layer 2 of conductive material on an electroluminescent panel 1 and a conductor 5, a relatively thick layer 3 partially separates the layer 2 and a further thin conductive layer 3 to which the conductor 5 is connected by a solder-type bond 6, massive in relation to the thickness of layers 2 and 3. The separating layer 2 is of material which prevents the formation of bond 6 from affecting the optical and electrical properties of the thin layer 1, for example an epoxy resin which may have a filler of titanium dioxide or barium titanate. The conductive layers 2 and 3 may be applied by spraying or by vapour deposition under reduced pressure, and are of copper, silver, gold or aluminium.