baber/WOPTO huggingface dataset:
Patent GB-1145051-A (GB)
Title: Improvements in or relating to buoyancy articles incorporating expanded plastics materials
Inventor: COOPER ALFRED
IPC: B63C9/115
Filed: 1965-10-04
Abstract: 1,145,051. Lifebuoys and jackets. BAKELITE XYLONITE Ltd. 4 Oct., 1966 [4 Oct., 1965], No. 42038/65. Heading B7U. [Also in Division A3] A buoyancy article, such as a life jacket or a lifebuoy, includes buoyancy pads which comprise a plurality of superimposed sheets, each having a thickness of ¢ inch or less, of an expanded plastics material with a substantially closed cell structure. Suggested materials are expanded polyethylene, polypropylene or P.V.C. or an ethylene copolymer such as ethylene/vinylacetate or ethylene/ethyl acrylate copolymer. The preferred sheet thickness is 1/16 to 1/8 inch.
Patent GB-982410-A (GB)
Title: Optical masers
IPC: H04B10/04
Filed: 1961-11-24
Abstract: <PICT:0982410/C4-C5/1> <PICT:0982410/C4-C5/2> In an optical maser capable of intermittent or continuous wave operation, a host crystal is doped with trivalent uranium.  The crystal is a fluoride of an alkaline earth such as calcium, barium or strontium.  The maser is used as a generator, as an amplifier or as a detector.  A pumping frequency generated by a xenon discharge lamp transfers electrons from a ground state A, Fig. 4, to an excitation state D comprising a band of states from which a metastable state C is populated by non-radiative transitions. Simulated transistions from metastable state C to a terminating state B close to the ground state produce the optical output in the infra-red region.  Preparation of crystal.-Purified calcium fluoride and about 0.3% or less by weight of uranium metal are melted in a graphite crucible together with about 2% of lead.  The lead combines with any oxygen present and is pumped away as vapour of the oxide.  The crystal is grown in cylindrical form and the ends are polished flat and parallel.  The ends are silvered and protected with a coating of silicon monoxide. One end is opaque and the other end transmits 1.5% of incident light. Maser apparatus.-A beam 12 of green light from a xenon discharge lamp 40 is directed on to the maser element 10, the end 16 being opaque. The stimulated emission in the infrared region of the spectrum is transmitted through end 18 and through an evacuated tube 30 as a beam 14.  The beam is transmitted through a window 44 and a filter (not shown) to a detector 24.  The tube 30 is encased in a Dewar flash 32, 36 containing liquid helium 34. Light signals at the output frequency admitted through end 16 can produce amplified signals by stimulating emission.  The silvering on end 16 is arranged to transmit a proportion of the incident light for this purpose.  When used as a detector, the intensity of the pumping is such that the spontaneous emission is just insufficient to stimulate further emission.  An additional signal at the pumping frequency is sufficient to drive the output to saturation.
Patent GB-1056446-A (GB)
Title: Feedback regulator equipment
IPC: G05B5/01
Filed: 1963-10-25
Abstract: 1,056,446. Automatic control. ALLM€NNA SVENSKA ELEKTRISKA A.B. Oct. 25, 1963 [Nov. 1, 1962], No.42144/63. Heading G3R. In a closed loop error-actuated control system the control signal is applied through a limiter and a number of inertia stages in cascade from each of which there is a feedback which is linear for small values of control signal and parabolic for larger values of control signal. As described, a control signal applied at 1 operates through an amplitude limiter 7 and a plurality of inertia or integrator units 6-3 each of which provides a feedback through units H3 - H0. These feedback units operate in a linear manner for small signals but biased diodes are arranged, Fig. 4 (not shown) to introduce shunt resistors in succession so that feedback varies in a parabolic manner with variations of control signal above a predetermined magnitude. This non-linearity may alternatively be produced by a non-linear resistor or Zener diode.
Patent GB-1182213-A (GB)
Title: Switching Control Apparatus for Attachment to a Motor Vehicle Steering Column.
IPC: B60Q1/14
Filed: 1968-09-05
Abstract: 1,182,213. Mechanical switches. VIFVITALONI S.A.S. DI VITALONI MARIO, GIOVANNI & C. 5 Sept., 1968 [1 March, 1968], No. 42235/68. Heading H1N. Switching control apparatus for attachment to a motor vehicle steering column comprises a central support 1<SP>1</SP> adapted to be mounted on a stationary part of the steering column and a number exceeding two of pre-assembled switches 160, 161, 323, mounted on support 1<SP>1</SP>, each including a plurality of electrical contacts controlled by a single control lever 167, 168, 324, which effects selective operation of the contacts according to different movements of the control lever. Support 1<SP>1</SP> is preferably a plastics moulding with extensions 2, 2<SP>1</SP> for securing support 1<SP>1</SP> to a stationary part of the steering column and extensions 3, 3<SP>1</SP> to secure plastics cover 4<SP>1</SP> Switch 160 is for direction indicators, switch 161 for lights and switch 323 for the windscreen wiper and windscreen washer pump. Tubular member 15 attached to the steering shaft effects release of the direction indicator switches after a turn. Lever 168 of switch 161 is adapted to rock about a transverse axis extending substantially parallel to the rotational axis of the steering shaft, performs angular displacements about its longitudinal axis and displacements along its longitudinal axis. Switch 161 is attached to support 1<SP>1</SP> by lugs 321, having inclined upper surfaces to permit rocking movement of switch 161 in a plane containing the axis of the steering shaft to operate spring contact 322, Fig. 1 (not shown), between switches 160, 161 to operate the horn. Switch 323 is depicted in detail in Figs. 4, 5, 6, 7 (not shown). Lever 324 of switch 323 terminates in an actuating member 329, Fig. 4, secured in its housing by two opposite coaxial pins engaging slots, the slot for the upper pin being longer than the pin to permit rocking of lever 324 in a plane containing the axis of the steering shaft to cause an arm on actuating member 329 to operate a contact comprising a spring bent to a U-shape for the windscreen washing pump. The lower pin on actuating member 329 fits into a rotatable member, rotatable with member 329, the rotatable member being provided with a semicircular flange guiding a plurality of balls 338, Fig. 7, for operating two oscillatory discs adapted to open and close sets of contacts. The arm on actuating member 329 has a ball at its end urged outwardly of the arm by a spring and adapted to be engaged in notches to act as locating means for the lever 324.
Patent GB-1122006-A (GB)
Title: Method of manufacturing low-molecular weight cellulose derivatives
IPC: C08B11/20
Filed: 1965-10-05
Abstract: Low molecular weight cellulose derivatives are made by partial depolymerization, which comprises treating, at a temperature below 80 DEG  C. a cellulose derivative in powder form with a solution of a hydrogen halide in an anhydrous C1 to C6 aliphatic monohydric alcohol, the proportion of hydrogen halide being less than 5% by weight of the cellulose derivative being treated, and subsequently removing the hydrogen halide at least partly in vapour form. The cellulose derivative is preferably an alkyl cellulose, such as methyl or ethyl cellulose, an hydroxyalkyl cellulose, a cellulose ester such as cellulose acetate, or a carboxyalkyl cellulose. The proportion of hydrogen halide is preferably less than 2% of the weight of the cellulose derivative to be treated.  The treating temperature is preferably 30 DEG  to 60 DEG  C.  The water content of the cellulose derivative and the halide should be kept as low as possible, preferably below 5% of the sum of the weights of the starting materials and the alcohol.  The final step in the treatment may be the neutralization of the treated material with a weak base such as sodium bicarbonate.  The duration of the treatment may be about 3 hours.  The treatment is particularly adapted for treating water-soluble cellulose ethers and thereby rendering them suitable for the preparation of aqueous solutions of relatively low viscosity, e.g. below 10 cp. at 20 DEG  C. for 2% aqueous solutions.
Patent GB-1338300-A (GB)
Title: Road vehicles
IPC: B60K11/06
Filed: 1972-08-22
Abstract: 1338300 Cooling motors ROLLS-ROYCE MOTORS Ltd 22 Aug 1972 [11 Sept 1971] 42463/71 Heading B7H In a road vehicle the cooling fan is disposed above the level of the engine 7 (which is disposed in a sound proofed compartment) and discharges the exhaust cooling air to an outlet which emerges at the top of the vehicle and engine exhaust ducting 8 is provided which also emerges at the top of the vehicle, preferably at the same outlet as the exhaust cooling air. In the first embodiment the fan and radiator unit 6 is disposed on the vehicle body, the fan drawing cooling air in through the radiator (in the direction of arrow 10) and discharging it through an outlet at the top of the vehicle. The outlet may be covered by a mesh (not shown). In a second embodiment (not shown) the fan and radiator unit are built into the roof of the cab. In a third embodiment (not shown) air is drawn in through lateral openings and the radiator and fan units may be mounted vertically adjacent the lateral openings or horizontally below the outlet at the top of the vehicle. In all the embodiments the fan may be driven by an electric or hydraulic motor.
Patent GB-1448916-A (GB)
Title: Terminal block retaining member
IPC: F16B2/06
Filed: 1974-10-01
Abstract: 1448916 Terminal retaining member HEGO ELECTRIC GmbH 1 Oct 1974 42548/74 Heading E2B A member for retaining terminal blocks comprises a body, the foot of which has a pair of recesses facing one another to engage respective edges 5, 5a, of an outwardly flanged or channel-section supporting rail 4 or of a supporting surface 3, a clamping screw 7 with a clamping member e.g. slide 8 defining at least one side of a first of the recesses and movable towards and away from the other recess 18 for engaging or disengaging one edge 5a of the rail and a bore 11 in the foot portion to receive a screw 10 for attaching the member to a plane supporting surface 3. Clamping slide 8 has a hooked end facing recess 18 to engage edge 5(a) of rail 4, and is engaged by clamping screw 7 to clamp edge 5(a) between its tip and the hook of slide 8. Screw 7 has a guide 9 to receive and retain a screwdriver blade. The member may be removed from rail 4 by pivoting about edge 5 and recess 18. In Fig. 4 (not shown), slide 8 is replaced by a nut (16) in a groove (19) preventing rotation thereof.
Patent GB-1001753-A (GB)
Title: Installation for treating boiler feed water
Inventor: RANDELL FORREST THOMPSON
IPC: F01D21/06
Filed: 1961-11-30
Abstract: 1,001,753. Feedwater supply systems. G. & J. WEIR Ltd. Nov. 22, 1962 [Nov. 30, 1961], No. 42814/61. Heading F4A. Items of boiler feedwater treatment plant are mounted together on a common support to form a transportable unit which can be installed as a unit in e.g. the boiler room of a ship, between condensate extraction pumps associated with a main condenser of steam boiler plant and boiler feedwater pumps. The treatment plant includes an air ejector 10 mounted on a deaerator 18 and connectible to condensate extraction pumps 12, a distiller condenser 14, a glands condenser 15, a water heater 16, a drains tank 26, a flash tank 21 and deaerator extraction pumps 20 which are connectible to the boiler feedwater pumps 23. The connections between the various items of the unit may be made before installation resulting in savings of labour in installation and of space in the boiler room.
Patent GB-1428978-A (GB)
Title: Electric battery plates
IPC: H01M4/76
Filed: 1972-09-18
Abstract: 1428978 Tubular electrodes for storage batteries ELECTRIC POWER STORAGE Ltd 1 Nov 1973 [18 Sept 1972] 43096/72 Heading H1B In an electrode of the type having vertical metal spines connected to a common top bar 11 and surrounded by active material 12 enclosed in a tubular sheath 13, the sheaths being connected to each other by an integral web, top and bottom covers 30, 20 of a heat-shrinkable plastics material are provided. The bottom cover 20 comprises a trough with caps 21 which fit over the lower ends of the tubes 13 and grip the tubes upon the application of heat. The top cover 30 fits over the bar 11 and has a sleeve 32 embracing terminal lug 33, heat being applied to the cover so that it grips the bar. The plastics material may be PVC.
Patent GB-1318622-A (GB)
Title: Adsorption apparatus
IPC: B01D53/08
Filed: 1970-09-11
Abstract: 1318622 Moving bed adsorption CHEMIEBAU DR A ZIEREN GmbH & CO KG 11 Sept 1970 [13 Sept 1969] 43522/70 Heading B1L Adsorption of the oxides of sulphur and for nitrogen from industrial gases, e.g. flue gas, using a downwardly and continuously moving granular carbonaceous adsorbent and transverse gas flow is carried out in a tower 1 comprising perforated gas inlet and outlet walls 2, 3 consisting of inclined gas guide plates 5 mounted on vertical supports 4. Each guide plate 5 is associated with an adsorbent pressure relieving plate 6 such that adsorbent can flow downward continuously between the plates 5, 6. Saddle like baffles 13 or tubes may be provided to slow the descent of adsorbent in the central region of the tower. Transfer of part of the dust laden adsorbent to the main stream 7 occurs at each point 11.
Patent GB-1522845-A (GB)
Title: Pickup arm cartridge
IPC: G11B3/10
Filed: 1975-10-23
Abstract: 1522845 Playback of disc records RCA CORPORATION 23 Oct 1975 [12 Nov 1974] 43525/75 Heading G5R For the playback of a disc record 12, e.g. using capacitance variations as described in Specification 1,392,202, a pickup arm 18 carrying a pickup 17 at one end is suspended at the other end 21 in a cartridge 26, which is removably received in a compartment 27 in a housing 28 and contains means, e.g. a leaf spring 47, for releasably holding the pickup arm 18 in a retracted position within the cartridge, the housing 28 containing means for releasing the pickup arm from this retracted position, e.g by the engagement of a pivoted finger 52 with an extension 57 of the leaf spring 47. As shown, the housing 28 is driven radially over the disc record 12 and contains signal-processing circuitry 19 and a motor 24 which drives the pickup arm 18 to compensate for variations in record speed as described in Specification 1,383,336.
Patent GB-1357022-A (GB)
Title: Drive arrangements for cable reeling drums
IPC: B66C13/12
Filed: 1971-09-17
Abstract: 1357022 Slip couplings METROPOLITAN TOOL & PRODUCTS Ltd 13 Sept 1972 [17 Sept 1971] 43567/71 Heading F2U A ship coupling for driving a cable reeling drum 1011 comprises a shaft 2 on which is axially fixed and rotatably mounted a member 1 fixed to a disc 24 (e.g. by bolts at 25 or by being clamped between halves la, 1b, of the member 1) frictionally clamped axially between two plates 18, 19 (e.g. mounting friction pads 22, 23 in arms 20, 21 thereof, Fig. 2) axially movable on but rotatably fixed to the shaft, one plate 18 by links 11 pivoted to a part 9 fixed to the shaft 2, there being a bias (e.g. springs 27) to urge the plates together. The load in the springs 27 may be adjusted by screwing a hub 29 into or out of a sleeve 30 fixed to the plate 18. To facilitate cooling the disc 24 may comprise a ring of hollow rectangular cross-section, Fig. 5 (not shown), or a channel, Fig. 3 (not shown), open radially outwardly, and having a length-wise divider and vanes to induce circulation of air.
Patent GB-895011-A (GB)
Title: Improvements in or relating to coating machines
IPC: B05C1/08
Filed: 1959-12-23
Abstract: 895,011. Coating webs. BONE BROS. Ltd., BROWNE, N. F., and COOK, H. C. Nov. 10, 1960 [Dec. 23, 1959], No. 43712/59. Class 140. An apparatus for coating textile or paper webs 11 with a viscous material 1 comprises a roller 2 and a knife blade 3 co-operating therewith to form a reservoir of the material 1 behind the blade and to form a metered film 26 of the material 1 on the roller 2, and a roller 12 in wiping contact with, and rotating in the same direction as, the roller 2 for to feed the web 11 in contact with the roller 2 and transfer the film 26 to the web. The rollers 2, 12 are driven at the same velocity by a gear-wheel 16 and bearings 19 for the roller 12 are adjustable in a guide 20 by worm gears 24, 25, nut 22 and rod 21. The blade 3 is adjustable by worm-gearing 9, 10, nut 7 and rod 6. A wall 4 forms the back of the reservoir on the roller 2, which has a doctor blade 27.
Patent GB-1360797-A (GB)
Title: Purification process
IPC: C02F1/00
Filed: 1970-09-14
Abstract: 1360797 Purifying water BRITISH OXYGEN CO Ltd 14 Sept 1971 [14 Sept 1970] 43854/70 Heading C1C A process for purifying water comprises introducing into the water, as a liquid hydrateforming substance, trichlorofluoromethane and/ or 3-bromopropene and a liquid or gaseous hydrate-forming aid, forming a solid hydrate (e.g. by compression and/or cooling) and separating (e.g. by filtration) the solid hydrate from the impure residue. The hydrate-forming substance is used in an amount of 4-8 mol. per cent of impure water and the hydrate-forming aid in an amount of at least 20 mol. per cent of hydrate-forming substance. The solid hydrate may be washed with already purified water, decomposed (e.g. by decreasing the pressure or increasing the temperature) and separated into purified water, hydrate-forming substance and hydrate-forming aid, at least part of which components can be recycled for re-use. The hydrate-forming aid may be CO 2 , SO 2 , H 2 S, Ar, N 2 , O 2  or air. The process may be batch or continuous
Patent GB-1030479-A (GB)
Title: A detector of pulses exceeding a predetermined length
IPC: G01R29/027
Filed: 1962-11-20
Abstract: 1,030,479. Transistor multivibrator circuits. NORTHERN ELECTRIC CO. Ltd. Nov. 20, 1962 [Nov. 24, 1961], No. 43884/62. Addition to 990,646. Heading H3T. A circuit for receiving a series of pulses and providing an output signal when the interval between the pulses exceeds a predetermined length comprises a monostable multivibrator as described in the parent Specification, the circuit including a third transistor, to which the input pulses are applied, connected across the timing capacitor in one of the coupling arms to control its period of charge so that when the interval between the pulses is less than the predetermined length the potential to which the capacitor charges is insufficient to terminate the unstable state of the multivibrator but when it exceeds the predetermined length the capacitor charges to a potential to terminate the unstable state and produce an output signal. In the circuit of Fig. 1 in the absence of a negative going pulse across the input terminals transistor 1 conducts and transistors 2, 28 are non-conducting, diode 19 is forward biased. When a negative input pulse A, Fig. 2, is applied to the base of transistor 28. the latter transistor is rendered conducting resulting in the potential of point 23 falling below ground and so reverse-biasing diodes 26, 19 resulting in transistor 2 being switched on by the current through resistor 25. Feedback from the collector of transistor 2 to the base of transistor 1 through resistor 15 switches transistor 1 off. At the end of pulse A transistor 28 is switched off and the charging current through resistors 33, 18 and capacitor 21 causes the potential at the point 23 to rise to ground potential, Fig. 3. The next pulse B renders transistor 28 conducting again and provides a discharge path for capacitor 21 before the potential at 23 has reached ground. As long as the time interval between the input pulses is sufficiently short to prevent 23 from rising to ground the circuit will not return to its initial state. However, if 23 reaches ground potential, Fig. 3, diodes 19, 26 are forward biased, transistor 2 is switched off and transistor 1 switched on, capacitor 21 discharging through diode 26. When the circuit charges states an output signal is produced at 37.
Patent GB-1391219-A (GB)
Title: High-frequency coils
IPC: H01B13/30
Filed: 1972-09-22
Abstract: 1391219 Transformers; Litz wire PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 22 Sept 1972 [25 Sept 1971] 43955/72 Headings H1A and H1T High frequency coils are wound from Litz wire comprising conductor strands 1 of less than 50 Ám. diameter insulated from one another and together wound about with at least one thread, the thread being impregnated with a water repellent, wetting agent which is liquid at room temperature and the spaces between adjacent turns of the coil not being filled by the wetting agent. The agent may be undiluted, chemically pure paraffin oil or a mixture of 25 to 80% by weight of a 10% methacrylate solution in petroleum ether (boiling range from 140 to 200 C.), from 10 to 40% by weight of a 10% by weight solution of dimerized rosin in petroleum ether and from 10 to 35% by weight of Japan wax. The agent may contain a dye.
Patent GB-1166644-A (GB)
Title: Pipe Coupling
Inventor: BULA KARL
IPC: F16L27/113
Filed: 1966-10-03
Abstract: 1,166,644. Spanners. K. BULA and H. JOSSI. 3 Oct., 1966 [2 Oct., 1965], No. 44045/66. Heading B3N. [Also in Division F2] Spanners for adjusting a pipe joint (see Division F2) are as shown.
Patent GB-1191010-A (GB)
Title: Hydrocarbon Reforming Process
IPC: B01J23/89
Filed: 1967-09-28
Abstract: 1,191,010. Reforming. UNIVERSAL OIL PRODUCTS CO. 28 Sept., 1967 [3 Oct., 1966], No. 44184/67. Heading C5E. In a process for reforming a hydrocarbon charge stock, said charge stock and hydrogen are contacted at reforming conditions with a catalytic composite containing an alumina component, a platinum group metallic component, a halogen component, a sulphur component, and an iron component, the iron component being uniformly distributed throughout the alumina component and the catalytic composite containing said iron component in an amount within the range from 50 p.p.m. to 5000 p.p.m. by weight based upon the alumina and calculated as iron, and containing said sulphur component in an amount within the range from 0.05% to 0À5% by weight calculated as sulphur. The feed stock may be a straight-run gasoline, a thermally or catalytically cracked gasoline or fraction thereof, or a pure hydrocarbon or mixture of hydrocarbons which it is desired to convert to aromatics. The iron compound such as iron chloride, iron bromide, iron acetate, iron fluoride, iron formate, iron iodite or iron nitrate may be distributed throughout the alumina by impregnation of alumina particles, but is preferably performed by mixing the iron-containing compound with an aluminium salt or hydrosol prior to the formation of the alumina particles. The platinum group component may be any of platinum, palladium, rhodium, ruthenium, osmium, or iridium. The catalyst may also contain fluorine, chlorine, iodine, or bromine. The examples all relate to the reforming of naphtha.