baber/WOPTO huggingface dataset:
Patent GB-363730-A (GB)
Title: Improvements in or relating to bedsteads
IPC: A47C19/04
Filed: 1931-06-22
Abstract: 363,730. Bedstead wideners. WILLIAMS, A. L. and WILLIAMS, A. G., 308, Laburnum Grove, Portsmouth. June 22, 1931, No. 28144/30. [Class 52 (ii).] A rectangular frame 3 fitted with a mattress surface can be hooked to the side 6 of a bedstead frame and supported by pivoted legs 10 on the outer longitudinal side, other pivoted legs 12 being provided on the opposite side so that the device can be used as a settee. The outer legs 10 are adjustable in length and when compacted are equal in length to the inner legs 12.
Patent GB-359152-A (GB)
Title: Water and air cooled perishable food safes
IPC: F25D17/00
Filed: 1930-09-22
Abstract: 359,152. Refrigerators. SUTTON, L. H., Brantwood, Newall, Otlev, Yorkshire. Sept. 22, 1930, No. 28234. [Class 29.] A food safe comprises an enclosed storage chamber 1, preferably of zinc, having perforate sides 2 and an air exhaust shaft 9 and supporting a water tray 3 having two opposite sides overhanging water troughs 6 connected by a tube 6x. Sheets of fabric 4 supported by wire frames 5 depend from the tray so that their lower ends are immersed in the water in the troughs. The safe is cooled by the evaporation of the water in the sheet caused by the passage of air through the openings 8 in the casing and the sheet to the storage chamber. Draft-producing means are provided in the shaft 9.
Patent GB-971067-A (GB)
Title: Track rail snow and ice melter
IPC: B61L1/20
Filed: 1963-07-17
Abstract: 971,067. Railway point heaters. CLEVELAND TECHNICAL CENTER Inc. July 17, 1963 [Sept. 11, 1962], No. 28268/63. Heading E1G. A railway point heating 20 means is supported for movement with the point blade 13 and has means 27 for reflecting the heat on to the blade. A heating element 37, which may be electric infra-red lamps, quartz tubes, or metal rods or gas infrared heaters, and its associated reflector 27 is pivotably clamped to a tube 21 secured through rubber grommets 23, 24 to the blade 13 and to the spacer rod 18 through which the blades 13, 14 are operated. The reflector 27 is arranged to direct the heat on to the blade and to pivot about the tube 21 for maintenance purposes.
Patent GB-250121-A (GB)
Title: Improvements in or relating to oil lamps
IPC: F21V37/00
Filed: 1925-05-19
Abstract: 250,121. Terrell, T. May 19, 1925. Oil reservoirs; oil supply; wick-operating devices.-In an oil lamp comprising an oil reservoir 1 which may be made in imitation of a candle and contains absorbent material, the wick extends to or nearly to the base of the reservoir and is of such a length that a bend or kink is formed in the free space between the wick tube 8 and the absorbent material 5 so as to enable the wick to be raised or lowered without disturbing its lower end. The wick tube 8 is formed with external heads 12, 11 which engage respectively with an inturned portion 14 of the chimney support 7 and with an annulus 13 which may rest on or be fixed to the reservoir 1. The wick is operated by means of a toothed wheel on a spindle 9 mounted in bearings 9<a> of the chimney support 7. The reservoir 1 is mounted in a tubular funnel 2 secured to a base 3 and is formed with notches 4 at its base. The absorbent material is changed by pouring oil into the funnel 2. Specification 249,364 is referred to.
Patent GB-922870-A (GB)
Title: Improvements in or relating to trolleys
Inventor: PINDER ROY HUGH
IPC: B25H3/02
Filed: 1960-08-16
Abstract: 922,870. Drawers. W. PINDER & SON Ltd. July 18, 1961 [Aug. 16, 1960], No. 28307/60. Class 52 (1). [Also in Group XXXII] A trolley on castors 23 has a series of horizontal frames 13 forming runners for trays or drawers 12 arranged in receding step-like formation between a pair of parallel side plates 2. Depending flanges 14 on the fronts of the frames 13 form stops for the drawers below them. The drawers may be released by tilting when drawing out. A lid 20 hinged to top plate 17 may either cover the whole sloping front of the trolley or be lockable and cover a top compartment 21 only. In the latter case further lids may be provided to enclose the contents of the drawers.
Patent GB-794425-A (GB)
Title: Improvements relating to electrical pulse generators employing semiconductor devices
Inventor: DAWSON EDGAR FREDERICK
IPC: H03K3/35
Filed: 1954-10-01
Abstract: 794,425. Semi-conductor pulse generator circuits. BRITISH THOMSON-HOUSTON CO., Ltd. Sept. 23, 1955 [Oct. 1, 1954], No. 28374/54. Class 40 (6). A pulse generator comprises a double base transistor having first and second auxiliary electrodes adjacent to each other at an intermediate position between the base electrodes and forming similar PN junctions. A potential difference is applied between the base electrodes and a capacitor is connected between one of the auxiliary electrodes and a base electrode and a load circuit connected between the same base electrode and the other auxiliary electrode so that the capacitor is progressively charged until the voltage renders the associated PN junction connecting whereupon it is discharged through the secondary auxiliary electrode to generate a pulse across the load circuit. The Figure shows a double base transistor having base electrodes B1, B2 at each end of a semiconductor rod T and two auxiliary electrodes P1, P2 each forming a PN junction. The battery VO provides a potential gradient between base electrodes B1, B2. The capacitor C progressively charges through the back resistance of the PN junction at point P1 until its voltage approximates to the potential existing in the semi-conductor at that point whereupon the PN junction becomes conductive and the capacitor C discharges through the load resistor R2 to generate a pulse across the output terminals the cycle then being repeated. Electrode P1 constitutes a trigger electrode so that when capacitor C reaches the potential of the semiconductor adjacent the electrode P1 a forward current flows through the junction due to the holes ejected from the P1 material into the semiconductor. The electrode P2 is biased in the inverse direction but the flow of holes from the junction at P1 drifts over to P2 so that holes flow into P2 from the semi-conductor and the resulting current flows through R2, when C is discharged below the drop-out potential of P1 no further holes are emitted and the current through R2 ceases. A train of short pulses, Fig. 3, not shown, is generated across resistor R2 these may be further sharpened and shortened by applying them to a differentiating circuit. A sawtooth voltage waveform is produced across capacitor C, Fig. 3, not shown. The capacitor C may be charged through the semi-conductor rod or alternatively an external charging means may be provided. Specification 786,876 is referred to.
Patent GB-1063379-A (GB)
Title: Production of dyes of the anthraquinone series
Inventor: HARWIG ERNST
IPC: C09B5/24
Filed: 1964-07-10
Abstract: The invention comprises a method for the production of dyes derived from 1-imino-3-oxo-4,7-diamino-5,6-phthaloyl-dihydro-iso-indole and having the general formula <FORM:1063379/C4-C5/1> in which X is a hydrogen or chlorine or bromine atom and R1 is a hydrogen atom or an unsubstituted or substituted alkyl radical, said method comprising heating a compound of formula <FORM:1063379/C4-C5/2> in which X is as above and Z is hydrogen or a carboxy group or -CONHR1 in which R1 is a hydrogen atom or a substituted or unsubstituted alkyl radical, a carboxylic acid ester group of an alcohol with 1-8 carbon atoms, a carboxylic acid halide group or a sulphonic acid group with an a -hydroxy or amino-nitrile in an organic solvent at 20-180 DEG  C. Blue dyes are obtained.
Patent GB-1589095-A (GB)
Title: Process for producing cross-linked copolymers of ethylene and polyethylenically unsaturated polycyclic hydrocarbons
IPC: C08F4/619
Filed: 1977-07-07
Abstract: For the preparation of interpolymers of ethylene with one or more polyene hydrocarbons, in which at least one unsaturation belongs to a polycyclic system, the reaction is carried out in the presence of a diluent and of a special catalytic system. The latter is prepared from   1 - one or more vanadium compounds of a valency greater than two, soluble in the reaction medium, 2 - one or more aluminium compounds of the general formula R2AlX in which R is an alkyl, cycloalkyl, alkylaryl or aryl radical having 1 to 12 carbon atoms and X is chlorine or bromine, and 3 - one or more of the following compounds: organic compounds containing the grouping -CCl3, hexachlorocyclopentadiene or thionyl chloride.   The polymerisation yields relative to the vanadium compound are between 30,000 and more than 1,000,000 grams of copolymer per gram of vanadium, and the polymerisation product does not require a washing stage for removal of catalytic residues, but can be recovered from the reaction slurry by centrifuging or stripping. The unsaturated interpolymers thus obtained have a random distribution of the monomer units, a high mean molecular weight, a high crystallinity of the polyethylene type and a melting point above 120 DEG C.
Patent GB-1182926-A (GB)
Title: Wall Cladding.
IPC: E04F13/14
Filed: 1967-06-21
Abstract: 1,182,926. Wall facing. FETOK G.m.b.H. 21 June, 1967 [22 June, 1966; 30 Dec., 1966], No. 28628/67. Heading E1B. Vapour-impermeable plates 6, for example of ceramic material, each has fixed to its rear surface one or more anchoring elements 9 each embedded in a patch of mortar 4 to fix the plate in spaced relationship to a wall 1. The anchoring elements which are adhesively attached to the plates may be covered with synthetic resin to allow expansion movement to take place without destroying the bond to the wall. In a method of application, mortar portions 4a, 4b are separately applied to the plates 6 over the elements 9 and to the wall the mortar portions 4a, 4b being subsequently brought into contact. The mortar may contain a synthetic resin and an accelerator. A removable jig piece 20 is used to align adjacent plates with correct spacing therebetween. The anchoring elements may comprise separate parts such as 46, 47 Fig. 8 connected by a dovetail joint united by elastic adhesive 50. Several other embodiments are described.
Patent GB-925828-A (GB)
Title: A multiple contact bed converter
IPC: B01J8/04
Filed: 1961-08-08
Abstract: <PICT:0925828/III/1> A multiple contact bed converter for the catalytic conversion of So2-containing gases into So3, comprises at least three contact beds and an intermediate heat exchanger annularly surrounding the first contact bed and directly adjacent thereto and so arranged that when the converter is in operation, the gases leaving the first bed flow through the heat exchanger to the second bed.  As shown, So2 gases having been conventionally preheated to approximately 320 DEG C. by heat exchange with So3 gases leaving the converter through an outlet opening 13, enter an annular chamber 2 through an inlet 1.  From this chamber they pass into a heat exchanger 21 which annularly surrounds the contact beds 4, 6 and being guided by baffles 22 sweep around a U-shaped flow path defined by hairpin tubes of the heat exchanger in cross flow.  The temperature of the So2 gases having thus been raised to 440 DEG C., they then pass through a preliminary catalyst bed 4 via opening 5. The precatalyzed So2 gases are then mixed with cold So2 gas or air the latter being admitted through pipe 14 and distributed by mushroom head 15 and outlets 16.  Simultaneously hot precatalyzed gases are passed through space 19 and thorough mixing ensues.  The mixed gases then pass through a first catalyst bed 6 and enter the annular heat exchanger 21 through peripheral openings 7 at a temperature of 510 to 540 DEG C.  Whilst flowing through the hairpin tubes of the exchanger their temperature drops to 430-450 DEG C.  After having passed through the heat exchanger the cooled contact gases are taken through intermediate openings 8 to a second catalyst bed 9 from which they flow out through a pipe connexion at 10.  In a separate intermediate cooler (not shown) the largely pre-catalyzed gases are cooled to the working temperature of a third bed 12. This temperature, as known, is kept as low as possible, e.g. 410-420 DEG C.  After maximum reaction in contact bed 12 the contact gases leave the converter through outlet 13 and are then used in conventional manner for preheating the So2 gases in further heat exchangers likewise not shown. Specification 925,827 is referred to.
Patent GB-1304121-A (GB)
IPC: G01M1/22
Filed: 1971-06-18
Abstract: 1304121 Balancing rotors HOFMANN GmbH Gebr [trading as HOFMANN KG Gebr] 18 June 1971 [2 July 1970] 28728/71 Heading F2U The out-of-balance of a rotor 1 is corrected while rotating by momentary periodic bombardment by a laser beam 2 which is being displaced or pivoted (e.g. oscillating) to remove material from a plurality of close locations centred about the point of maximum out-ofbalance. The material removed may leave a series of pits or a shallow pit extending along the axis of rotation and/or circumferentially. The laser beam 2 may be focused by a lens 3, which, at the end of the material removal, is displaced along the beam path to "de-burr" the pit. The lens 3 may be mounted on leaf springs 10, Fig. 6, and be vibrated by an electromagnet M at a frequency different from (preferably less than) the rotor speed. The lens 3 may alternatively be fixed on a table A, Fig. 7, the beam being oscillated by a mirror G being rocked by an electromagnet M. The table A may be movable between two planes H, J for dynamically balancing the rotor. An electrical circuit for controlling an electromagnet M is described, Fig. 8 (not shown).
Patent GB-969699-A (GB)
Title: Electromagnetically controlled device for maintaining constant the stress moving strands
IPC: H01F41/094
Filed: 1962-07-26
Abstract: 969,699. Covering cores by winding; tension means. MICAFIL Ltd. July 26, 1962 [July 26, 1961], No. 28739/62. Heading B8G. [Also in Division G3] In a coil-winding machine, a wire 2 is pulled through guiding rings 3-5 and between brushes 6, 6<SP>1</SP>. The wire then passes through the airgap of an electromagnet 7 and is braked by a thin synthetic diamond plate 9 supported on an aluminium frame vertically guided in slots in the lower magnet pole. The plate is pressed against the wire by the arching of a plastic bag 10, filled with iron dust, in dependence on the magnetic flux set up by the current in an excitation coil of the electromagnet. The stress in the wire is sensed by a device comprising a core 14 positioned against the action of a spring by a jockey pulley 13 over which the wire runs. The movement of the core upsets the symmetry of the magnetic circuits associated with coils 16, 16<SP>1</SP>, energized in series from a high-frequency source. The asymmetry causes the voltage at a common connection to change and through an amplifier vary the excitation of the electromagnet 7 so as to tend to maintain the stress in the wire constant.
Patent GB-413005-A (GB)
Title: Improvements in or relating to driving the air compressors and propellers of aircraft engines
IPC: F02B33/00
Filed: 1933-09-27
Abstract: 413,005. Pumps. LAGO, A. F., 1A, High Road, Kilburn, London. Sept. 27, 1933, No. 28746/32. Drawings to Specification. [Class 7 (ii).] Variable-speed gearing, preferably epicyclic' is interposed between the engine shaft and the propeller shaft of an aircraft, and also between the engine and compressor shafts. Specifications 164,042 and 312,128, [both in Class 80 (ii)], are referred to.
Patent GB-1512443-A (GB)
Title: Transfer printing process for hydrophilic or synthetic fibre material or mixtures of hydrophilic and synthetic fibre material
IPC: D06P5/28
Filed: 1975-07-08
Abstract: 1512443 Transfer printing process CIBAGEIGY AG 8 July 1975 [12 July 1974] 28778/75 Headings D1B and D1P A process for transfer dyeing or optically brightening hydrophilic fibre material, synthetic fibre material or mixtures therefor comprises using an inert temporary carrier treated with a sublimable dyestuff or optical brightener and at least one solid compound which has a vapour pressure above 10<SP>-5</SP>mm Hg at 150C and which melts during the heat transfer step. Specified solid compounds are imidazole. 2- methylimidazole, hydantoin, 1-hydroxymethyl- 5-dimethyl hydantoin, succinimide, nicotinic acid amide, pyrazine carboxylic acid amide, N-ethyl urea, N-methyl urea, N, N'-ethylene urea; N-methyl-, N, N'-dimethyl-N, N'-propylene-, N, N-butylene-, N-isobutylthiourea and thiourea; 2-imidazolidone, N-hydroxysuccinimide and N-hydroxymethyl succinimide. Preferred fibre materials are wool, cotton and polyester/cotton.
Patent GB-1108450-A (GB)
Title: Improvements in and relating to the manufacture of glass articles
IPC: C03C10/00
Filed: 1965-07-07
Abstract: A semi-crystalline glass article has a coefficient of expansion of not greater than 20 x 10-7/ DEG C. and comprises, as analytical components, SiO2, Al2O3, Li2O, a small amount of a nucleating agent which at least includes ZrO2 and from substantially 8 to 14% by weight of a fluxing agent which includes B2O3 and the metal oxides MgO and/or ZnO, the said article containing b -spodumene crystals of the Li2O, Al2O3, SiO2 system, these crystals being embodied in a glassy matrix comprising Al2O3, SiO2 and the fluxing agent.  The glass is taken from the range SiO2 58 to 66, Al2O3 16 to 22, Li2O 2.5 to 5, B2O3 4-7, MgO and/or ZnO 3-7, and contains up to 4 TiO2 and 0.6, ZrO2 as nucleating agent.  The glass is melted at 2800 DEG  F. and conventionally formed into articles at 2200 DEG  to 2500 DEG  F. The ware is cooled and then reheated to 1600-1800 DEG  F. for from 1 to 14 hours to allow for nucleation.  The longer time is used for decorated ware.  Articles made from the above composition by the above method contained 37.4% crystals (b -spodumene) and had a coefficient of expansion of 13 x 10-7/ DEG  C. a typical composition of the glassy matrix remaining was SiO2 66.86, Al2O3 16.38, B2O3 9.72, MgO 6.00 and ZrO2 1.03.
Patent GB-1422310-A (GB)
Title: Safety arrester for a hydraulically operated ram
IPC: F15B15/26
Filed: 1974-06-28
Abstract: 1422310 Locking fluid pressure actuators A RASTETTER 28 June 1974 [30 June 1973]  28927/74 Heading F1D A device for locking the piston rod 1, Fig. 1, of an actuator comprises brake shoes 11, 12, 13, Fig. 2, which are segments of a ring and are spring- biased by springs 22, 23, 24 into engagement with the rod and are disengaged by hydraulic actuators 14, 15, 16 when the pressure of working fluid in the device exceeds a predetermined level. If hydraulic pressure in the system drops, a valve 39, which is normally held closed against a spring 38 by pressure from a pump 5, opens, so that liquid from chambers 17, 18, 19, which is holding the actuators 14, 15, 16 in raised position is rapidly drained to a reservoir through a pipe 40 and the brake shoes are spring-urged down into engagement with the rod 1. Roller bearings 29 are provided between the shoes and a cavity in the body member 7. If the rod is extended after the brakes have been applied, the body member 7 will rise with the rod until abutments on tie-rods 33 arrest further upward movement of the body 7. This disengages the brakes and the body 7 descends under gravity. Friction linings 28 are provided.
Patent GB-1127979-A (GB)
Title: A handle for a grill pan
Inventor: BAYLEY DONALD CLIFFORD
IPC: A47J45/07
Filed: 1966-06-28
Abstract: 1,127,979. Detachable handle for cooking vessels. RADIATION Ltd. 27 June, 1967 [28 June, 1966], No. 28982/66. Heading A4A. A detachable handle for a grill pan or other cooking utensils comprises a loop 1 of mild steel rod formed so that its upper end carries a moulded plastics grip 2 and the lower end extends substantially horizontally to underlie and support the marginal region of the underside of a grill pan 13 when engaged with the latter. A mild steel bracket 7, welded by means of down-turned flanges to one of the intermediate inclined portions 4, has a vertically upwardly extending portion 10, and secured to it by rivets 9 spring clip 8 with a portion parallel to the portion 10 having a stud-like projection 12, and terminating in an inclined portion 11. The grill pan for use with the handle is provided with a downwardly open socket 14 defined by a shaped strip of metal secured to the outer surface of one upstanding wall, into which is introduced the portion 10 of the bracket 7 until the portion 3 of the loop abuts the underside of the pan.
Patent GB-466102-A (GB)
Title: Improvements in the design and construction of multi-storied buildings
IPC: E04H6/10
Filed: 1935-10-21
Abstract: 466,102. Workshops, garages, &c. HOENIG, E. Oct. 21, 1935, No. 29035. [Class 20 (i)] A building such as a garage, warehouse, factory, or workshop, consists of at least two series of floors 9, 10, the floors in each series being arranged in stepped formation and successive floors of each series being connected by ramps 3. One or more floors in the building are common to at least two series or, alternatively, connecting floors 4 are provided, and the arrangement of the building is such that the path taken in traversing the floors and ramps of one series does not intersect the corresponding path of another series. In the construction shown such paths are of helical form, the successive floors being indicated by 0, <1>/4, <2>/4, <3> /4 and <4>/4. As seen in sectional elevation in Fig. 2, the complete building is of rectangular form consisting of two end blocks 1, 2, containing the stepped floors and front and rear connecting blocks for the floors 4. In modifications the ramps are arranged at the corners of the blocks and/or the ramps and floors of one series are arranged so that ascent or descent is effected by following an opposite spiral course from that shown. In another modification only three ramps are traversed in travelling from one storey to the next and in further arrangements each block contains two or more series of floors and ramps, each series providing helical tracks which may intersect, overly or be adjacent to another series. In the construction shown in Fig. 3, the corners of the blocks 5, 6, are interconnected by floors 7. Specifications 358,353 and 466,103. are referred to.
Patent GB-689837-A (GB)
Title: Improvements relating to devices for cleaning wire ropes
Inventor: WHATMOUGH JOHN EDWARD
IPC: B66B7/12
Filed: 1949-11-12
Abstract: 689,837. Cleaning ropes. MINISTER OF SUPPLY. Nov. 13, 1950 [Nov. 12, 1949], No. 29042/49. Class 109 A rope cleaning device comprises a pair of scraper blades 1 and 4, each of which is carried by a pair of angle members which are cut and bent and assembled upon studs 9 and 10 in a frame 11 so as to allow pivotal movement to the blades. Springs 7 and 8 upon each of the studs co-operate with the angle pieces to urge the blades towards each other. Arcuate slots B are cut in the blades to encompass part of the circumference of the rope which is gripped and drawn between the blades as shown in Fig. 2. A pair of such devices may be mounted in tandem but with their axes at 90 degrees to each other.