baber/WOPTO huggingface dataset:
Patent GB-703079-A (GB)
Title: Improvements in sampling apparatus for testing atmospheres containing fine particlesin suspension
IPC: G01N1/22
Filed: 1950-11-27
Abstract: 703,079. Injectors. BRITISH CECA CO., Ltd., and BOUCHER, R. M. G. Nov. 26, 1951 [Nov. 27, 1950], No. 28930/50. Classes 8 (2) and 71. Apparatus for sampling a slowly moving atmosphere containing suspended particles e.g., coal dust comprises a filter 19 through which air is drawn at a rate given by a venturi 21 and a manometer 25 by a compressed air, gas or steam actuated injector comprising a working nozzle within a block 29 connected by a pipe 32 to a pressure gauge 24 controlled by a valve 23 which in conjunction with the manometer 25 enables the injector to draw a constant volume of air at N.T.P. irrespective of the resistance of the filter 19 which normally increases during filtering. The filter cell 19 is charged with crystals of tetrachloronaphthalene and is detachably mounted on a flexible pipe (not shown), and dust free air together with compressed fluid is exhausted through an outlet 17.
Patent GB-1245040-A (GB)
Title: Improvements in or relating to measuring apparatus
Inventor: CATTERMOLE DENIS EDWARD
IPC: G01R31/26
Filed: 1969-06-09
Abstract: 1, 245, 40. Thyristor firing angle measurement. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. May 6, 1970 [June 9, 1969], No. 28981/69. Heading G1U. In order to measure the firing angle of an S.C.R. or like device (not shown) across which A. C. is applied and which is fired repeatedly at the same point in successive alternate half cycles, the S.C.R. is connected across terminals C, D, Fig. 1, the abrupt drop in potential across the terminals when the S.C.R. fires is differentiated C2, and rectified D5, D6, to fire a thyristor TH1 which conducts via a transistor TR1 and a resistor R4 until the end of the half-cycle - because the transistor TR1 is controlled at its base by alternate half-cycles of the same A. C. supply that is applied to the S.C.R. - and the average current flowing is indicated on a meter M1 which may be calibrated directly in terms of firing angle. The current carried by the thyristor TH1 is from a Zener diode D7 stabilized supply, and a switch S3 allows either positive or negative half-cycles of the supply to switch the transistor TR1. Calibration of the meter can be effected by closing a switch S2, thereby causing the thyristor TH1 to conduct for complete half-cycles, and adjusting a resistor VR1. A second switch S1 allows a shunt across the meter to be open circuited, whereby it increases the meter sensitivity.
Patent GB-1453901-A (GB)
Title: Welding system
IPC: B23K9/073
Filed: 1974-07-01
Abstract: 1453901 Automatic control of welding PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 1 July 1974 [4 July 1973]  29026/74 Heading G3R A system for dip-transfer or short-circuiting arc welding using a consumable wire electrode includes a measuring device producing a signal representing the mean arc power. Deviations of the signal from a reference value are used to control a parameter such as supply voltage or wire feedrate in order to maintain the mean arc power at a constant level. The supply is connected across an electrode wire holder and a workpiece. As shown in Fig. 1, a power supply 2 which may include thyristors or transductors is connected between an electrode wire holder 6 and a workpiece 10. The wire 7 is fed by rollers 16 driven by a motor 19 controlled by a regulated speed circuit 20 including a tachogenerator. The power in an arc 11 is measured by a device 22 which supplies a signal to a comparator 25 for comparison with a reference value R, and the output of the comparator is formed by a device 28 into a signal for controlling either the power supply 2 or the set value of the feed speed regulator 20. The arc power may be derived from measurements of arc voltage and current, but the arc voltage in dip-transfer welding remains substantially constant during the arc period of each cycle, so that only the current needs to be measured, as in Fig. 4, where an amplifier 59 supplies a signal representing the arc current through a switch 64 to one input of an integrating amplifier 42. A pulse shaper 50, responsive to the voltage between the electrode and workpiece, closes the switch 64 only when an arc is present, between successive short-circuit intervals, and also provides an input to two monostable multivibrators 54, 55 controlling switches 67, 69 respectively. Switch 67 shorts an integrating feedback capacitor 46 at the beginning of each cycle, while switch 69 supplies the current signal integrated over the arc period to a storage capacitor 71 for use as a control signal in the regulating device 28. The amplifier 42 also receives a reference input from a source ER. The device 28 has an integrating characteristic and a signal limiting function.
Patent GB-1394582-A (GB)
Title: Decorative layer and a method of producing the same
IPC: C04B41/52
Filed: 1972-06-21
Abstract: 1394582 Mortars KAJIMA KENSETSU KK 21 June 1972 [25 June 1971] 29068/72 Heading C1H [Also in Division B2] A mortar composition comprises an hydraulic cement, aggregate, synthetic resin emulsion and water. In examples the cement is white Portland cement, the aggregate is silica sand, the resin is epoxy resin, and the composition can contain asbestos tailings.
Patent GB-1151686-A (GB)
Title: Polymeric Thermoplastic Compositions based on Post-Chlorinated Polyvinyl Chloride
IPC: C08L27/24
Filed: 1967-06-23
Abstract: 1,151,686. Graft polymer compositions containing chlorinated polymers. MONTECATINI EDISON S.p.A. 23 June, 1967 [23 June, 1966], No. 29122/67. Heading C3G. A thermoplastic composition comprises (a) at least one post-chlorinated polymer and/or copolymer of vinyl chloride, (b) at least one graft copolymer of a halogenated polyolefin and vinyl chloride (alone or with one or more comonomers) and (c) at least one mineral filler, said components (b) and (c) being present in quantities respectively between 0À5 and 100 and between 5 and 50 parts by weight with respect to 100 parts of component (a). Specified fillers are, CaCO 3 , quartz, SiO 2  and Al 2 O 3 , in the form of particles, optionally coated with mineral wax, fatty acids or soap. In examples, the compositions comprise chlorinated polyvinyl chloride, a graft polymer of chlorinated polyethylene and vinyl chloride, aluminium silicate, bariumcadmium laurate, epoxidized soy bean oil and wax.
Patent GB-1056746-A (GB)
Title: Motor-driven exposure carriage for photographic copying tables
IPC: G03B27/02
Filed: 1963-07-23
Abstract: 1,056,746. Contact printing apparatus. H. HAUS. July 23, 1963, No. 29164/63. Heading G2A. In contact printing apparatus, the light source is in a moving carriage having rollers at each end, which traverses along the length of the material to be copied. In the form shown, the apparatus comprises a box-like carriage 1 which can move on rollers 26, 27. Within the carriage is a series of lamps 22 with reflectors 40. A motor 8 transmits the driving force to one of the rollers. A push rod 35 having end buttons 36, 39 is connected to a motor-reversing switch 34. Thus as the carriage reaches the end of its traverse, the rod strikes against suitably located buffers 37, 38, the switch is operated, and the motion of the carriage automatically reversed. Also mounted within the carriage is a control transformer 11 for the lamps. The electrical equipment is supported on a separate floor 6 above the lamps. Centrally of the carriage is a cylindrical sleeve 15 housing a cooling fan 21a. If the width of the material being copied is greater than the length of a lamp, the lamps can be arranged as in Fig. 4, making a small angle alpha with the direction of travel b of the carriage, so that all the material is uniformly illuminated. As shown in Fig. 1, the photo-sensitive sheets may be laid out in the form of a pile B on a long copy-table, with the transparency to be copied laid on top of the pile. The light-carriage A can then run back and forth along the top surface to effect exposure without any guiding devices being necessary.
Patent GB-1106415-A (GB)
Title: Electrical regulating apparatus
Inventor: KNAK JAMES LOUIS
IPC: F42D1/05
Filed: 1966-06-29
Abstract: 1,106,415. Firing explosive fuses. BENDIX CORPORATION. 29 June, 1966, No. 29236/66. Heading H2H. [Also in Division G3] In a circuit arrangement for firing explosive fuses of the type in which a charged condenser 14 is discharged by breakdown of a spark-gap 16 through an explosive bridge wire unit 15, the condenser 14 is charged in a step-by-step manner by a " ringing choke oscillator " including a transistor 22, the primary winding 20 of a transformer whose secondary 21 supplies the condenser 14 and a tertiary winding 25 of the transformer. The voltage across the condenser 14 is limited to and maintained at a predetermined value by a transistor amplifier comprising three normally non-conductive transistors 41, 42, 43 which are made conductive when the voltage derived from a divider 51, 52, 53 exceeds a fixed reference voltage derived from the supply 10 and members 44, 45, the amplifier and oscillator thereafter functioning to compensate for energy lost from the condenser 14. The spark-gap 16 is fired by a trigger circuit 17 comprising a storage condenser 63, time delay circuit 64, 65, uni-junction transistor 66, silicon-controlled rectifier 69 and a pulse transformer 70, 71. The oscillator may be switched off while the circuit 17 is energized by means of a connection from this circuit to the base of transistor 43. The charging circuit 12 includes condensers and diodes to protect against excess voltage, and also temperatureresponsive resistors for temperature compensation.
Patent GB-474274-A (GB)
Title: Improvements in or relating to shearing apparatus for strip material
IPC: B23D36/00
Filed: 1936-10-28
Abstract: 474,274. Rolling-mill plant; shearing. UNITED ENGINEERING & FOUNDRY CO. Oct. 28, 1936, No. 29297. Convention date, Jan. 21. [Class 83 (iv)] In a machine for shearing moving material delivered from a rolling mill 1, an auxiliary motor 12 accelerates the shears 2 from rest, and a clutch 9 is then engaged and the drive is taken over by a motor 4 driving the mill rolls 1. When the front end of the material passes a flag switch 22, contacts 21, 23 close circuits through a generator 19 and a time delay relay 25. The latter releases a brake 27 and starts the motor 12 to accelerate the shears 2. The motor 4 continuously rotates a shaft A from a gear box 8. When the speed of the shears reaches the speed of the shaft A, the current in a coil 17 fed from a generator 19 exceeds the current in a coil 16 fed from the generator 18 driven by the shaft A and closes a contact 15 controlling the clutch 9, to transfer the drive to the motor 4. The relay 25 is in circuit with a limit switch 26 which de-energizes the motor 12 after the relay 25 is opened by the flag switch, and applies the brake 27.
Patent GB-889878-A (GB)
Title: Improvements in or relating to apparatus for coating articles by vapour deposition
Inventor: TASSARA LUIGI
IPC: H01C1/146
Filed: 1958-09-12
Abstract: 889,878. Coating by vapour deposition. ELETTRONICA METAL LUX S.p.A. Sept. 12, 1958, No. 29373/58. Class 82(2). Apparatus for applying a metallic film to moving cylindrical bodies 11a-11c comprises an evacuable housing 38 in which are mounted a stationary shield 32 having an aperture 34, said aperture being confined by two lines 46, 47 (Fig. 3) parallel to the path of the bodies and by two lines 48, 49 each intersecting both lines 46, 47, a source of metallic vapour (crucible 29) on one side of said shield, a rotatable turret 23 for moving the bodies past said aperture on the opposite side of the shield so that when metallic vapour from said source passes through said aperture the vapour strikes the outer surface of the bodies and condenses thereon, and means for rotating the bodies simultaneously with the movement thereof so as to form a film of uniform thickness all around the bodies. The bodies are rotated by virtue of their being mounted on mandrel 21, said mandrel being carried by turret 23 and extending radially from the axis of rotation 27 thereof and carrying a wheel 22 frictionally engaging a circular track on shield 32. The turret is rotated by motor 42 acting through gearing 43 and magnets 39, 41. A second mandrel 21a carries a single body 11d which is used as a measuring standard to gauge the resistance of the film applied to bodies 11a-11c, the resistance of body 11d being measured via conductive stop 52 and sliding contact 54. Heating elements 60 promote diffusion of the applied film into the supporting bodies. The apparatus may be used in the manufacture of resistors by coating ceramic rods with 80% Ni-20% Cr alloy.
Patent GB-825991-A (GB)
Title: Rolling blind
IPC: E06B9/11
Filed: 1957-09-19
Abstract: 825,991. Lath blinds. VITTONE, I. Sept. 19, 1957, No. 29500/57. Class 20(3) In a roller blind with hollow slats of extruded plastic material linked by elements 6, 7 connecting link-rods 8 located in seats 1, 2 provided at the upper and lower longitudinal edges respectively of the slats, the walls 3 of each slat are spaced apart by strengthening diaphragms 4 intermediate their longitudinal edges. Openings 5 in seats 1 and 2 accommodate the links 6, 7 which may be of oval cross-section or formed with a single wall (not shown). Each seat 2 is provided with flanges 9 to co-operate with the seat 1 of the adjacent slat. The ends of the seats 1 and 2 may be closed by heating and deforming.
Patent GB-759722-A (GB)
Title: Improvements in aluminium to copper connectors inter alia for electrical conductors
IPC: H01R4/62
Filed: 1954-10-13
Abstract: 759,722. Wire terminals; sleeve couplings. GENERAL ELECTRIC CO. Oct. 13, 1954 [Oct. 15, 1953], No. 29526/54. Class 38 (1). [Also in Group XXII] A butt-welded joint 5 between aluminium and copper members 1, 2 is surrounded by a gasket 6 compressed to form a moisture-tight seal by indenting a flange 4 integral with mem. ber 1. Fig. 4 shows a modification wherein an undercut flange 12 is formed on the copper member 11 and a trapezoidal gasket 14 surrounding the joint 13 is held compressed against this flange by a second flange 15 formed by deforming axially the aluminium member 10. Both members 10, 11 may be tubular, as shown, or member 11 may be solid. Alternatively member 11 may be flattened and pierced for connection to a terminal.
Patent GB-173465-A (GB)
Title: An attachment for the cutter spindles of wood moulding machines
IPC: B23Q35/10
Filed: 1921-11-05
Abstract: 173,465. Wright, J. T., and Mills, F. Nov. 5, 1921. Cutters.-A loose collar 7 with a depending flange 11 is carried by means of ball bearings on an inner collar 6 which is clamped on the cutter spindle (not shown) of a wood-moulding machine by the fixing nuts for the cutter blades 3. The moulding pattern contacts with the loose collar only and rubbing is obviated.
Patent GB-276536-A (GB)
Title: Improvements in or relating to string tensioning and tremolo producing means for stringed musical instruments
IPC: G10F1/18
Filed: 1926-11-23
Abstract: 276,536. Wade, H., (Mills Novelty Co.). Nov. 23, 1926. Reciprocating machines.-In a tremolo device for a violin, where the pulsating devices consist of cylinders the pistons of which are connected to tensioning levers to which the strings are attached, these cylinders are fed by a pump consisting of a solenoid winding D' on a non-magnetic cylinder 12, and a piston 13, 13a formed as a magnetic core retracted by a spring 14 on deenergization of the coil. A flange 13<c> on the piston engages, in its forward and reverse movements, lugs 18, 19 on a pivoted switch D<3>, breaking and making contact at 21. The rate of pulsation may be varied by means of an adjustable valve 27 on the cylinder 12. A manually adjusted valve, and a valve operated by a solenoid and switch, control the feed-conduit (not shown). Specifications 274,697 and 276,537, [both in Class 88 (ii), Music &c.], are referred to.
Patent GB-247689-A (GB)
Title: Improvements in the frames and suspension of the bodies of mechanically driven road vehicles
IPC: B60G99/00
Filed: 1924-12-09
Abstract: 247,689. Royce, r. H. Dec. 9, 1924. Springs, arrangement of and mounting bodies on.-The body frame of a motor vehicle is connected to the dash by a resilient connection and also to the chassis at four points, two points at the rear being of rigid or semirigid character and the remaining two being of a resilient character and situated some distance from the front. A bracket d, Fig. 8, is secured to the side members and supports the body frame f thrugh rubber blocks e, the frame being secured thereto by bolts e<6> having a spring e<9>. The scuttle g<2>, Fig. 9, of the frame is attached to the dash g by means of bolts h<6> and rubber buffers h, the dash being carried by the chassis frame. Specification 248,293 is referred to.
Patent GB-486838-A (GB)
Title: Air screw propellers
IPC: B64C11/04
Filed: 1937-10-29
Abstract: 486,838. Airscrew propellers. SCHWARZ, G., and SCHWARZ, O. Oct. 29, 1937, No. 29631. Convention date, Nov. 4, 1936. [Class 114] A wooden propeller blade a having a proteotive coating b is fixed in a sleeve c which has an annular space f containing packing g. There is clearance between the outer end i of the sleeve c and the root of the blade a to permit slight relative movement.
Patent GB-812668-A (GB)
Title: Improved method of air conditioning
IPC: F24F3/044
Filed: 1957-09-20
Abstract: 812,668. Ventilating. SVENSKA FLAKTFABRIKEN A. B. Sept. 20, 1957 [Sept. 27, 1956], No. 29647/57. Class 137 A method of reducing the influence of solar radiation and outdoor temperature on air conditioned rooms comprises exhausting the ventilating air from one or more spaces, shielded from the room, formed between the inner pane of the window and a partition in the window bay, the exhaust air being introduced into the spaces through slots arranged at the lower edge and/or sides of the partition. As shown, air is exhausted through slots 5 at the lower edge of a partition 3 in the window bay, to a space 4 between the window 2 and the partition and finally through slots 6 to an exhaust duct 7. The partition may be of a transluscent material impermeable to air, or may be of a heat absorbing material. A blind 8 may be arranged between the partition and the window to absorb solar radiation.
Patent GB-877172-A (GB)
Title: Improvements in or relating to automatic blind landing systems for aircraft
Inventor: PRESCOTT THOMAS WRIGHT
IPC: G05D1/02
Filed: 1958-09-16
Abstract: 877,172. Automatic control systems for aircraft. AVIATION, MINISTER OF. Sept. 14, 1959 [Sept. 16, 1958], No. 29682/58. Class 38 (4). In an automatic blind landing system for aircraft, means responsive to height above the runway render signals proportional to the aircraft heading relative to the runway effective to determine rate of rudder application, and a supplementary control signal is applied to the ailerons in dependence on change of heading thereafter. As applied to an aircraft being flown by an automatic pilot to follow a radio defined approach and landing-path the control system shown is automatically rendered effective by means, e.g. a radio altimeter (not shown), when the aircraft descends to a height of 20 feet just prior to touchdown. Signals from a compass 11 are then applied to a selector 12 which is set to the heading of the runway so that a heading error signal is derived and applied through a gain control 21 and amplifier 19 to correct the heading by control of a servomotor 17 operating the rudder 15. Rate feedback from servomotor 17 to amplifier 19 ensures rudder operation at a rate corresponding to the output of amplifier 19. A rate of heading error signal derived by a resistance-capacity differentiating circuit 22 is applied through a gain control 23 as an anti-hunting signal to amplifier 19. A yaw acceleration signal derived through a differentiator 24 from a yaw rate gyro 14 is applied through a gain control 25 to amplifier 19 to suppress short-term yaw oscillations. Signals from a roll rate gyro 13 are applied through a gain control 27 and amplifier 20 to correct roll by control of a servomotor 18 operating ailerons 16. Rate feedback from servomotor 18 to amplifier 20 ensures aileron operation at a rate corresponding to the output of amplifier 20. Bank resulting from turn is countered by applying the signal from yaw rate gyro 14 through gain controls 26, 27 to amplifier 20. Instead of rate signals, signals dependent on angle of bank and change of heading may be used to control the ailerons.
Patent GB-362580-A (GB)
Title: Production of asphaltic products from aromatic extracts of mineral oils
IPC: C10C3/04
Filed: 1930-10-06
Abstract: Asphalt-like bitumen is obtained by blowing air through heated aromatic and unsaturated hydrocarbons extracted from mineral oils by liquid sulphur dioxide, aniline, phenol, or other selective solvent. For example, mineral oil from which constituents boiling up to 250 DEG  C. have been removed is treated with such a solvent, and the extracted matter is blown at 100 DEG  C. and 50 lb. pressure.
Patent GB-192787-A (GB)
Title: Improvements in stands for fishing rods
IPC: A01K97/10
Filed: 1922-09-11
Abstract: 192,787. Cook, G. Sept. 11, 1922. Rod rests and holders.-A holder for a fishing rod comprises a leg portion formed of two pieces of tubing 5, 6 detachably jointed together, to the upper one of which a rod holding member 1 is adjustably fitted. The upper end of the tubular member 5 is slotted and flattened to form two lugs between which is fitted the lug 3 on the member 1 which is semi-cylindrical with a cvlindrical end to receive the end of the fishing rod. It is adjusted in position by engagement of a pin on the lug 3 with holes 12 on one of the lugs of the leg member 5, and is clamped by a wing nut 4.
Patent GB-897618-A (GB)
Title: Process for the enzymatic acylation of 6-amino-penicillanic acids
IPC: C07D499/12
Filed: 1960-08-31
Abstract: 6-Acylamino-penicillanic acids are produced by reacting 6-amino-penicillanic acid in an aqueous medium with a carboxylic acid or a salt or derivative thereof at a pH of not more than 6.5, in the presence of bacteria or extracts, enzymes or enzyme concentrates obtained from these bacteria which are capable of linking phenylacetic acid in an amide-like manner with the 6-positioned amino group of 6-amino penicillanic acid with the liberation of water, such as E. coli A.T.C.C. 11,105.  The 6-amino-penicillanic acid may be used in the form of a crude solution obtained by the action on penicillins of suspentions or extracts of penicillin-splitting bacteria.  Specifications 893,418 and 897,617 are referred to.
Patent GB-1523055-A (GB)
Title: Polyolefin composition and a process for producing same and a polyolefin composition moulding
IPC: C08J7/043
Filed: 1976-07-20
Abstract: 1523055 Coated products MITSUI TOATSU CHEMICALS INC and DAIWA CORP Ltd 20 July 1976 [22 July 1975 (2)] 30088/76 Heading B2E [Also in Division C3] Articles of compositions comprising (1) a polyolefin having dispersed therein (2) thermoplastic incured rubber particles at least a part of which contain (3) a polymer having a functional group, the rubber being compatible with said polymer and soluble in a solvent therefor but incompatible with the polyolefin, may be painted with paints comprising as binder a resin having a group reactive with said functional group. The compositions may be prepared by melt blending, or articles of a dispersion of the rubber in the polyolefin may be treated with a solution of the functional polymer, preferably after a surface pretreatment, e.g. by abrasion or with a solvent, to expose rubber particles in the surface. In examples compositions of (1) polypropylene or polyethylene, (2) 1, 2- polybutadiene, styrene/butadiene rubber or acrylic ester rubber, and (3) hydroxyterminated polybutadiene, a glycidyl copolymer, N-methoxy-methylated Nylon-6 or saponified ethylene/vinyl acetate copolymers are painted with urethane, phenol and alkyd resin paints.