baber/WOPTO huggingface dataset:
Patent GB-1423349-A (GB)
Title: Automatic gain control circuuits
IPC: H03G3/20
Filed: 1972-05-12
Abstract: 1423349 Automatic gain control THORN ELECTRICAL INDUSTRIES Ltd 19 April 1973 [12 May 1972] 22470/72 Headings H3T and H4R An automatic gain control circuit for the video channel of a television receiver comprises a smoothing capacitor and means providing a relatively low resistance charge and discharge path for the capacitor under conditions of relatively rapid change in the signal level, but relatively higher resistance charge and discharge paths for the capacitor under substantially steady state conditions. A gain controlling voltage V IN  is applied to the base of transistor TR1 and an .output control voltage V AGC  is derived across capacitor C, being the collector potential VC of transistor TR1 plus the voltage drops in diode D1 and Zener diode D2: transistor TR2 is normally biased off. When the collector voltage VC falls, corresponding to a fall in signal level, the capacitor C rapidly discharges via diodes D1, D2 and transistor TR2 remains off. When the signal level rises, the collector voltage VC rises rapidly, being isolated from capacitor C by diodes D1, D2; transistor TR2 is then turned on and provides a path for the rapid charge of capacitor C. The arrangement is provided to deal with "aeroplane flutter".
Patent GB-1519929-A (GB)
Title: Stabilized red phosphorus and process for making it
IPC: C01B25/023
Filed: 1977-05-27
Abstract: 1519929 Red phosphorus HOECHST AG 27 May 1977 [17 July 1976] 22500/77 Heading C1A Stabilized pulverulent red phosphorus comprises a homogeneous blend of red phosphorus particles with a size of at most about 2mm and as an oxidation stabilizer a metal compound of the second or third group of the Periodic System, the metal compound being the aluminium, magnesium, calcium or zinc salt of an alkyl-, cycloalkyl-, aryl- or aralkyl-phosphonic acid having 1 to 20 carbon atoms, the metal compound being present in the homogeneous blend in a proportion of 0À5 to 5 weight per cent. Red phosphorus particles may-be intimately blended with 0À5 to 5 weight per cent, based on red phosphorus, of an alkyl-, cycloalkyl-, aryl- or aralkyl-phosphonic acid having 1 to 20 carbon atoms; the blend suspended in water and the suspension heated to 60 to 95 C.; the suspension gradually admixed with at least stoichiometric proportions of an aqueous solution of a water-soluble aluminium, magnesium, calcium or zinc salt to cause precipitation of the respective phosphoric acid salt from the aqueous suspension at a pH of 3À0 to 6À0 and preferably at a temperature of from 80 to 90 C.; the resulting mixture filtered, and the filter residue dried at elevated temperature, suitably at 80 to 130 C., and if desired, under reduced pressure. Preferred water-soluble salts are Al 2 (SO 4 ) 3 .18H 2 O, Ca(NO 3 ) 2 .4H 2 O, ZnSO 4 .7H 2 O and MgSO 4 .7H 2 O, which may be used in the form of 5 to 20 weight per cent aqueous solutions. The aluminium salt is suitably precipitated at pH 3À0 to 3À5 and the salts of the other metals at pH 5À0 to 6À0.
Patent GB-423946-A (GB)
Title: Improvements in or relating to cut sole or/and heel leather for footwear
IPC: C14C15/00
Filed: 1933-08-12
Abstract: 423,946. Drying leather soles. COLLINSON, F. B., 6, Field Lane, Litherland, Liverpool. Aug. 12, 1933, No. 22531. [Class 34 (ii)] [See also Group VIII] Apparatus for drying leather soles and heels comprises an endless band 6, mounted on pulleys 7, 8, and provided with wire frames 11 between which soles 12 are placed. Baffle plates 13 are arranged on the band 6 at spaced intervals so as to close the entrance opening of an air chamber 14 disposed above the band. Heated air is circulated transversely through conduits 21, the enlarged ends of which register with apertures 20 in the side walls of the chamber 14.
Patent GB-244538-A (GB)
Title: Automatic refrigeration system
IPC: F25B49/02
Filed: 1924-09-24
Abstract: 244,538. Hilger, G. Sept. 24, 1924. Refrigerating, compression machines and processes for.-In apparatus for cooling one or a series of chambers the condensed refrigerant is passed through two reducing valves, the first of which is adapted to maintain a reduced pressure of substantially constant value and the second is regulated automatically by the temperature of the refrigerant returning from the evaporator coil or coils. The system as shown in Fig. 1 comprises the usual elements, compressor A, motor B, condenser D, receiver E, reducing valve G and pipe lines H which supply refrigerant to evaporator elements J in a series of refrigerating-chambers I, I<1>, I<11>. The second reducing valve 7 in the pipe line comprises an upper valve section 8, Fig. 2, and a lower annular section 15 forming a chamber 10, the two parts being separated by a diaphragm 9 constituted bv flexible discs 9<a>, separated by heat-insulating material 9<b> and a spacing member 9<e>. The refrigerant returning from the pipe line passes through the annular chamber 15. A manually-operated valve 14 provided between the chambers 15, 10, serves as a means to admit a charge of the refrigerant to the chamber 10. This is effected when all the coils have completed the freezing and the charge is then in a saturated condition, the pressure therein being the same as that on the opposite side of the diaphragm. Excess of pressure in chamber 10 due to radiation is balanced by adjusting the spring 11<b> acting on the valve 11. The medium contained in the chamber 10 thus acts as a thermostatic medium influenced by the temperature of the returning refrigerant in the annular space 15. The valves K which control the flow of refrigerant to the coils J are operated by a thermostatic device L. Each valve K communicates with the main pipe line and with the coil and is controlled by an arm on a shaft extending outside the casing and terminating in an arm 41 connected by a link 42 to a lever 35 of the thermostatic device L. The lever 35 is pivoted to a projection on the diaphragm casing and is formed at its end with a contact member 46 that cooperates with a second contact 47 in the motor circuit C. The motor is stopped when all of these contacts, which are arranged in parallel, are opened. Specifications 6414/11 and 27597/12 are referred to.
Patent GB-650637-A (GB)
Title: Improvements in or relating to machines for bending tubes or the like elements
IPC: B21D7/06
Filed: 1948-08-27
Abstract: 650,637. Angular bending. BABCOCK & WILCOX, Ltd., JARMAN, D. L., and ADAMSON, P. Aug. 27, 1948, No. 22614. [Class 83 (iv)] In a machine for bending tubes &c. a stock 25 carries a grooved former 60 and arms 145, 150 carrying grooved bending rolls 163, 190. The arms 145, 150 are connected by links 185, 189 and pins 260, 270 to the body of a hydraulic jack 204 slidable on a base 1 supported on legs 2, 4 and the plunger of the jack contacts the rear of the stock 25. In use the rolls 163, 190 are swung in by actuation of a screw 280 and the tube inserted and the rolls are then moved to effect bending by operating the jack by a lever 217<SP>1</SP> to slide the body 204 and apply tension to the. links. The latter may be secured selectively to holes 258 in lugs in thejack body. Formers.-To adapt the machine for bending different tubes former units comprising a stock 25, former 60, levers 145, 150 and rolls 163, 190 for the desired size and curvature are fitted.
Patent GB-388315-A (GB)
Title: Improvements in flexible shaft and casing assemblies
IPC: F16C1/08
Filed: 1932-08-12
Abstract: 388,315. Flexible shafts. JOLINE, E. A., Drexel Hill, Pennsylvania, U.S.A. Aug. 12, 1932, No. 22619. [Class 80 (ii).] A flexible shaft 9, more particularly for driving a speedometer, fit s snugly in its casing 10 which forms a continuous bearing for it throughout its length, the shaft ends 20 being swaged to diminished square, polygonal or other non-circular rigid form so as to have direct driving engagement in similarly-shaped sockets in the coupled parts 15. The maximum diameter of the shaft ends is not greater than that of the shaft 9 so that they can be drawn through the casing. The latter is attached to the speedometer and transmission housings by nuts 27 engaging flanges 26 on the casing.
Patent GB-405697-A (GB)
Title: Improvements in or relating to loud speaking instruments for the production of sounds from electrical impulses
IPC: H04R23/02
Filed: 1932-08-12
Abstract: 405,697. Loud-speakers. LEWIS, R. A., Melrose, Lake Road West, Cardiff. Aug. 12, 1932, No. 22633. [Class 40 (iv).] A combination loud-speaker comprises one or more electrostatically actuated diaphragms for reproducing the upper part of the frequency range which surround and form a baffle for one or more electromagnetically actuated cone diaphragms adapted to reproduce the lower part of the frequency range. As shown in Figs. 1 and 2, the cone 5 of a moving coil loudspeaker is mounted in an aperture 4 in the electrostatic loud-speaker 1, 2 mounted on the framework 3. The edge of cone 5 is supported on a tube 6 of elastic material inflated with air or gas under pressure and attached to the edge of the opening in the fixed plate 1 by a rib or flange 6<1>. Figs. 4 and 5 show a modification in which six electrostatic speakers 2a, 2b, 2c are arranged around two moving coil speakers 5a, 5b. A sheet 8 may be arranged across the front of the framework 3 as shown in Fig. 5 and adapted to form a projection screen for talking pictures or television.
Patent GB-1294145-A (GB)
Title: A device for the supply and reception of a continuous paper strip to and from office machines
Inventor: LIDSTROM TORD VIKTOR ALEXANDER
IPC: B41J15/14
Filed: 1970-05-11
Abstract: 1294145 Selective printing T V A LIDSTROM 11 May 1970 22648/70 Heading B6F A receptacle 14 from which continuous stationery is fed into a printing machine comprises a curved sheet of material formed with a slot 15 for egress of the stationery, an internal curved surface of the receptacle guiding the stationery through the slot, and an external curved surface 17 of the receptacle guiding the stationery into a receiving tray 16. The receptacle may be transparent. For use with a printing machine with a moving paper carriage the receptacle may be sufficiently long to permit the stationery to slide laterally in the slot 15 as the carriage moves. The receptacle 14 is mounted on a rod 10 which may be fixed to the machine by a fastener 11, or to a table on which the machine is supported, or may be free-standing. The height of the receptacle 14 and tray 16 may be adjustable.
Patent GB-982698-A (GB)
Title: Shock absorbing helmet
Inventor: HORNICKEL ROBERT ROY
IPC: A42B3/14
Filed: 1962-06-13
Abstract: 982,698. Shock-absorbing helmets. MINE SAFETY APPLIANCES CO. June 13, 1962, No. 22691/62. Heading A3V. A shock-absorbing helmet comprises a rigid shell 1, Fig. 2, a cradle having straps 3 and a headband 5, upwardly extending sockets 9, with upper endwalls and inner and outer sidewalls spaced circumferentially around the lower part of the inside of the shell, e.g. immediately above its brim 2, and shock-absorbing devices 8, which are inserted upwardly in the sockets to engage their upper endwalls and are secured to the lower ends of the straps, as by looping them through slots 7 in the lower portions of the devices 8. The upper part or the whole of each device 8 is permanently deformable or collapsible when the shell receives a downward impact, the maximum possible deformation being less than the original distance between the top of the cradle and the shell. The sockets may be arranged in pairs and each device 8 may be in the form of a U-shaped lug, each upright leg of which is inserted in a socket of a pair, The upper parts of the upright legs of each U-shaped lug 12, Fig. 3, may be made collapsible by providing them with horizontal slots 16 or the legs 22, Fig. 5, may be made collapsibly thin. The metal lug 40, Fig. 6, is corrugated and the metal lug 45, Fig. 7, is continuously curved. As shown in Fig. 2, the devices 8 comprise blocks 10 of crushable, brittle, non-elastic material placed between the tops of anchor lugs and the upper end walls of the sockets. The blocks 10 may comprise metal strips or clips, balsa wood, expanded polystyrene beads, cellular cellulose acetate, foamed or expanded thermoplastic vinyl resin or glass. The cradle may comprise an adjusting lace 4.
Patent GB-801330-A (GB)
Title: Improvements in bands of crepe paper, plastics film and other materials
IPC: B65D63/10
Filed: 1956-07-23
Abstract: 801,330. Festoons &c. ENGEL, L. April 3, 1957 [July 23, 1956; Sept. 25, 1956], Nos. 22716/56 and 29274/56. Class 93 [Also in Group VIII] A strip of paper or plastic film &c. e.g. for decoration or advertising &c. is wound into a roll 1 which is flattened and is cut at 3, 4 from the outside to the middle, either as a slit, or leaving e.g. a V-shaped or a semicircular opening. The inner end of the strip is then passed through the slit or opening and pulled out radially, so that the roll unwinds from within, and the strip is thereby twisted at 10 e.g. to form a festoon which may be suspended from a loop 2 &c. Two ply material may have the plies of contrasting colours, or with transparent plastic, welding lines coud be made to form encosures which coud be inflated. Or separate plies could be relatively displaced longitudinally after unwinding. Other holes may be cut for ornamenting.
Patent GB-585942-A (GB)
Title: Improvements in and relating to bearings for axially movable tubes and rods
IPC: F16L3/18
Filed: 1945-09-05
Abstract: 585,942. Rectilinear-motion bearings. BLACKBURN AIRCRAFT, Ltd., and ADIE, R. H. Sept. 5, 1945, No. 22873. [Class 12 (i)] A bearing for axially movable rods or tubes comprises a bracket 1 with bosses or bracket arms 2 through each of which extends a mandrel 4 on which are adjustably mounted, by spacing shims 7, 8, 13, 14 ball- or roller-bearing members 6, 9, 11, 12, or as shown in Fig. 4 arms 17 each carrying a ball- or roller-bearing member, such bearing members engaging the axially movable rod. The bracket 1 is apertured to allow passage of the axially movable rod and the outer races of the ball or roller bearings are chamfered at the edge engaging the rod. The bearing may give three- or four-point support for the rod by using a corresponding number of ball or roller bearing members.
Patent GB-1507927-A (GB)
Title: Liquid crystal compositions
IPC: C09K19/58
Filed: 1975-05-23
Abstract: 1507927 Liquid crystal compositions MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 23 May 1975 [7 June 1974 (3)] 22897/75 Heading C4X A cholesteric liquid crystal composition comprises 0À1 to 70 weight percent of at least one optically active compound A where x is -CH = N-, -N = N-, or azoxy, and C* is an asymmetric carbon atom, substantially all the balance of the composition being nematic and/or cholesteric material with positive or negative dielectric anisotropy. Of the compounds A, only that for which x is -CH = N- is mesomorphic (monotropic cholesteric). Cholesteric components may be selected from cholesteryl esters, (+)- p-ethoxybenzylidene-p<SP>1</SP>-(2-methylbutyl) -aniline and (+)-p-ethoxy-p'-(2-methylbutyl)-azoxybenzene. Limited amounts of non-mesomorphic material may be present e.g. a p-n-alkylbenzylidene-p<SP>1</SP>- n-alkylaniline to adjust the mesophase temperature range and increase the speed of electro-optic response, or a trimethylammonium halide to control the electrical conductivity. The compositions are useful in electro-optic devices, exhibiting dynamic scattering with memory or undergoing a cholesteric to nematic phase change.
Patent GB-281039-A (GB)
Title: An improved steering wheel for automobile vehicles
IPC: B62D1/08
Filed: 1926-09-17
Abstract: 281,039. Holly, E. J., and Bluemel Bros., Ltd. Sept. 17, 1926. Hand-wheels.-The spokes of an axially-yield. ing steering-wheel for motor-vehicles are made of hard cold-rolled or tempered steel or like resilient blades c, which may be flat or slightly curved, and are threaded on a boss b to lie flatly on one another against a flange e, being secured thereon by a riveted cap plate 1'. The spokes extend diametrically across the wheel, and are secured to the rim a by riveting or screwing thereto claws h on the spokes. The part h and its lugs j, k may be formed by bending a blank about the lines I, Fig. 5, to embrace the spoke, to which it is secured by friction, brazing, or riveting. The spoke may enter a, slot in the rim, as shown, or not. The lug j may be integral with the spoke c and the lug k brazed, riveted, or welded thereto. The metal or. wooden rim and the spokes may be wholly or partly covered with celluloid.
Patent GB-672591-A (GB)
Title: Improvements in ball piston pumps
IPC: F04C3/06
Filed: 1950-09-19
Abstract: 672,591. Rotary pumps. GERKEN, H. Sept. 19, 1950, No. 22951/50. Class 110(ii) A pump with a ball-piston in two parts 1, 2 has two grooves 1a, 1c formed on its surface in which, during the rotation of the ball, move similarly-shaped sliders 8, 9, supported respectively on driving and stub shafts 10, 11. To regulate the pump, the shaft 11 is moved in a vertical plane through a slot 18a by means of two rotors 17, 19 the axles 17<SP>1</SP>, 19<SP>1</SP> of which intersect at the centre of the ball. As shown gears 20, 21 on a shaft 24 carried by the rotor 19, mesh respectively with teeth 17a on the rotor 17 and teeth 18b on the fixed casing 18. Adjustment may be made through a worm 23 and worm-wheel 23<SP>1</SP> or by other means. The ball is made with the two parts 1, 2 clamped together, with the core body 7 in position held by a bolt 8<SP>11</SP> and the circular grooves 1a, 1c cut. Then the two parts 1, 2 are separated' and turned relatively through, 90 degrees and again assembled with the core in position, (see Fig. 3) which shows the end formation of the sliders. Pipes 15, 14 connect with the wedge-shaped pumping chamber.
Patent GB-827141-A (GB)
Title: Internal combustion engine
Inventor: HAAS HERBERT H
IPC: F01P5/02
Filed: 1958-07-17
Abstract: 827,141. Accessory arrangements. CONTINENTAL MOTORS CORPORATION. July 17, 1958, No. 22957/58. Classes 7(2) and 7(3) Individual housings 15, 16 located between inclined or opposed cylinder banks form the sole support for fans 42 and for a fan and fuel pump drive shaft assembly 21, the housings being mounted by bolts 71, for disconnection as a unit, on crankcase faces 19, 20 lying in a plane parallel to the crankshaft and containing the axis of the shaft assembly 21. Fuel injection pumps 17 on either side of the assembly 21 are mounted on a member 70 bridging the assembly and are driven from an outer assembly sleeve 35 via gears 35b, shafts 37 and disconnectible couplings 36. The fans 42 are driven by inner torsion members 39, 50 of the assembly 21. The member 39 is splined at one end to the sleeve 35 where the latter is splined to a gear 22 driven by a crankshaft gear 14, and is splined at the other end in a fan drive gear 41 in which one end of the member 50 is slidably splined, the other end of the member 50 being slidably splined in a like fan drive gear 54. To disconnect the housings 15, 16 individually, the member 50 is slidden clear of the gear 41 and a clamp 59 is loosened to allow telescoping of shaft guard parts 57, 55b on disconnection of the part 57 from the housing 15.
Patent GB-985899-A (GB)
Title: Control means for neutralising a vehicle pneumatic suspension
IPC: B60G17/005
Filed: 1961-06-26
Abstract: 985,899. Vehicle pneumatic suspension systems. FABBRICA ITALIANA MAGNETI MARELLI S.p.A. June 26, 1961 [June 24, 1960], No. 22958/61. Heading B7D. Control means for rendering inoperative the pneumatic suspension system of a tractor, comprises at least one discharge valve 3 pneumatically opened by a three-way electrically operated valve E, Fig. 1, the minimum pressure in the system being determined by a spring 9 which acts to close the valve 3 at the minimum pressure. To reduce the pressure in the air springs A, Fig. 1, of the tractor portion of an articulated vehicle on disconnection of a semitrailer, the chamber 7 of a valve D is pressurized from a reservoir B, connected to spings A, by valve E, to raise piston 5 against spring 9 to open valves 3 and vent springs A and chambers B via port 14 until spring 9 moves piston 5 down to close valves 3 at said minimum pressure. During normal operation, chamber 7 is vented by valve E and valves 3 are closed; a device C adjusts the pressure in springs A. In Fig. 5, spring 26 normally moves piston 25 to open valve 21 via plunger 24 to connect chamber H with air springs G which are controlled by a device C<SP>1</SP>; but on disconnection of the semitrailer, valve E<SP>1</SP> pressurizes chamber 29 from a reservoir on the tractor, to lower piston 25 and close valve 21, the air springs then venting via bore 24<SP>1</SP> in plunger 24, valve 32 and port 34, the spring 33 determining the minimum pressure in the springs G.
Patent GB-1338345-A (GB)
Title: Aerial flare with drogue parachute
IPC: F21L17/00
Filed: 1972-05-16
Abstract: 1338345 Parachutes THIOKOL CHEMICAL CORP 16 May 1972 [11 June 1971] 23012/72 Heading B7G [Also in Division F3]  An aerial flare comprises a mechanical timer 15 which is triggered when the flare is dropped from an aircraft, a parachute 14 deployed after a predetermined time set by the timer, and a drogue chute 17 held by friction (e.g. band of emery cloth) in a compartment 21 out of which it is thrown under centrifugal force on excessive spinning of the flare to inhibit such spinning. The drogue chute is reinforced at its opening by a steel cable over which the calendered nylon fibres of the chute itself are sewn. A tension spring (27<SP>1</SP>) (Fig. 4, not shown) may optionally be placed on the gathered shroud lines (23).
Patent GB-1418959-A (GB)
Title: Electrical circuit unit
IPC: G01K7/22
Filed: 1973-05-15
Abstract: 1418959 Measuring temperature STANDARD TELEPHONES & CABLES Ltd 15 May 1973 23028/73 Heading G1N [Also in Division H2]  To protect apparatus, e.g. a programmecontrolled test equipment, from damage or incorrect operation by heat due to excessive current and/or ambient temperature, a thermistor for use in the apparatus, and which brings about an alarm condition, comprises a bead-type thermistor 3 attached to the surface of a resistor 6 whose temperature is to be monitored by a plastics resin 4, the thermistor being electrically but not thermally insulated from the resistor, and the assembly is enclosed in a heat-shrinkable sleeve (not shown) which is heat shrunk thereon. In manufacture, the sleeve is heated so as to cause it to achieve stability prior to hardening of the resin.
Patent GB-300336-A (GB)
Title: Improvements in bedstead or the like elevating and transporting devices
IPC: A61G7/08
Filed: 1927-09-02
Abstract: 300,336. Willmot, O. J. Sept. 2. 1927. Hand-trucks.-A truck for raising and transporting bedsteads comprises a wheeled tubular frame 1 to which are pivoted elevating frames having means for engaging the bedstead. The frames 5 are pivoted at 6 to the underframe 1 and are operated by means of levers 7 having rollers to engage the members of the frame 5. The levers 7 are operated by racks 14 and a pinion, links 13 and arms 12. The members 5 are provided with telescoping rods 5<a> which are connected by transverse members 21 provided with hooks 26. 28 for engaging the bedstead. The transverse members are linked together by lever 23 and rods 24.