baber/WOPTO huggingface dataset:
Patent GB-1157736-A (GB)
Title: Apparatus for producing Underwater Acoustical Impulses
IPC: G01V1/157
Filed: 1967-08-17
Abstract: 1,157,736. Generating seismic energy. TELEDYNE INDUSTRIES Inc. 17 Aug., 1967 [21 Nov., 1966], No. 37865/67. Heading H4D. In an arrangement for producing underwater acoustical impulses (e.g. for seismic surveying) by discharging electrical energy between spaced underwater electrodes the conductivity of the region between the electrodes is increased by supplying conductive liquid thereto. As shown in Fig. 2 the liquid, comprising, e.g. a solution of copper sulphate or a slurry of common salt, is pumped from a tank 19 and supplied via a solenoid valve 17 and tube 20 to the " leading " one 12 of a pair of electrodes 12, 14 (see also Fig. 3) towed, underwater, by a vessel V (Fig. 1). The liquid is pumped via a check valve 21 through a bore 12a in electrode 12 and the emerging flow 18 is made to hug against electrode 14 by giving the latter a streamlined shape. In use, a timer-control K operates the solenoid to allow a stream of the liquid sufficient to bridge the electrodes to pass and then operates a trigger controlled switch 10 to connect a source of stored electrical energy S to the electrodes to initiate the discharge.
Patent GB-345927-A (GB)
Title: Improvements in dust pans
IPC: A47L13/52
Filed: 1930-02-17
Abstract: 345,927. Dustpans. AYLIFFE, H., 7, Monahan Avenue, Purley, Surrey. Feb. 17, 1930, No. 38103. Divided on 345,771. [Class 19.] A dustpan comprising a box-like body 1, Fig. 3, with a mouth at one end has a U-shaped handle 9 pivoted inside the mouth at 11, projections 14, or the like, being provided on the body 1 so as to hold the handle fixed while sweeping is being done.
Patent GB-1013565-A (GB)
Title: Device for changing the spools supplying cigarette paper to a cigarette making machine
IPC: A24C5/20
Filed: 1962-10-09
Abstract: 1,013,565. Feeding webs. H. J. FROHLING. Oct. 9, 1962 [Oct. 19, 1961], No. 38161/62. Heading B6B. In a web roll supporting and changing device for feeding a paper web continuously into a cigarette making machine (not illustrated), the leading end f<SP>11</SP> of a web from a replacement roll b is prepared with a transverse splicing tape with adhesive on both sides, and is held in readiness on a perforated piece of sheet metal k which is subjected to the action of a vacuum chamber k<SP>1</SP>, to be spliced to the trailing end of an exhausting web f<SP>1</SP>. During the phase of readiness, the leading edge f<SP>11</SP> protrudes into the gap between a guiding roller g and an opposite, rubber-coated, presser roller h, journalled to a rocker arm i. A photo-electric device n senses a mark on the web f<SP>1</SP> when nearing exhaustion, and through a relay (not illustrated) commences the operation of cutting the web f<SP>1</SP> with severing apparatus l, turning off the suction and rocking the arm i to cause the splice, and bringing the replacement roll b up to speed by rocking a roller o into contact with either a flanged disc 8 mounted on the spindle of the web roll b. The roller o is rubber-coated and is continuously driven by an endless V-belt p. When the exhausted web roll a has been removed, the replacement roll b is slid along two parallel guide rails c in supports d<SP>1</SP>, to take up the position of web roll a. A known brake e acts on the web roll to control the tension as the diameter decreases.
Patent GB-1380482-A (GB)
Title: Fixing apparatus
IPC: G03G15/20
Filed: 1972-08-16
Abstract: 1380482 Fixing apparatus MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 16 Aug 1972 [18 Aug 1971] 38193/72 Heading G2H  Apparatus for fixing a developed image 80 on the surface of a photo-conductive film 11 comprises a chamber 20 having an inlet 22 for liquid fixing solvent and an evaporation means 30 including an evaporation dish 33 and an evaporation plate 34 for evaporating liquid solvent supplied to the inlet into the space 36 formed  between the film 11 and the plate 34. Liquid solvent is supplied to the dish 33 through a metering device 40 comprising a movable valve rod 48. Solvent vapour leaving the dish passes through slot 35 into the space 36 and finally leaves the apparatus through a vent 23. The dish and the plate 34 are heated by electric heating element 32. The chamber 20 may be movable on a rod 61 into and out of contact with a frame 10 surrounding and supporting the film 11. The frame 10 may be supported in a guide rail 70. The film may comprise a photo-conductive layer (e.g. Poly -N- vinyl-carbazole), a conductive layer (e.g. cuprous iodide) and a support of cellulose triacetate or polyethylene prephthalate. The solvent may be methylene chloride, methyl chloroform, toluene trichloroethylene, benzene or chlorobenzene.
Patent GB-941999-A (GB)
Title: Improvements relating to electronic computers
Inventor: EVANS KENNETH CHARLES
IPC: G06F9/355
Filed: 1958-11-26
Abstract: 941,999. Programming arrangements for electronic computers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 26, 1960 [Nov. 26, 1958], No. 38195/58. Heading G4A. Instruction words in a computer are modified in two steps, a first in which the incoming addresspart of the instruction is modified in the arithmetic unit AU by the contents of one location of a B-store, and a second in which further modification of the recirculated address according to the contents of register B(0) is effected before the address is passed to select the instruction from the working store. By providing 15 (for example) locations in the B store, the register B(0) may be addressed in the same way as the B store when its contents are to be changed.
Patent GB-1474027-A (GB)
Title: Piston assembly
IPC: F16J1/00
Filed: 1973-08-13
Abstract: 1474027 Pistons CAM GEARS Ltd 29 July 1974 [13 Aug 1973] 38208/73 Heading F2T In order to mount an hydraulic piston assembly in a shallow groove 8 in a rack bar 2, e.g. for a vehicle power-steering arrangement, split steel rings 10 are spring into the groove and a packing ring 16 is urged radially outwardly by a compressed rubber ring 14. The ring 16 may have a staggered split (18) and may be made of nylon.
Patent GB-957080-A (GB)
Title: Improvements relating to air blast cooling apparatus
Inventor: DOLMAN STANLEY ERNEST
IPC: C21D1/84
Filed: 1961-10-25
Abstract: <PICT:0957080/C3/1> <PICT:0957080/C3/2> Air blast cooling apparatus for treating batches of articles consists of a hopper having an opening in one face, means for clamping a charge basket over said opening and means for inverting the hopper and basket so that the charge falls from the latter to the former, where it is subjected to an air blast.  The surface area of the hopper on to which the charge falls is greater than the area of the hopper opening. After cooling is complete the hopper reverts to its original position and the charge is returned to the basket.  As illustrated hopper 11 is <PICT:0957080/C3/3> mounted in rings 1 and 2 which are supported on rollers 3 and which are caused to rotate by chain 4.  Charge basket 27 is placed on arms 17 by which it is clamped against lip 16 of hopper 11 under the action of springs 19. Hopper 11 is then inverted so that the charge falls on to perforated base 15 through which a current of air is blown from duct 25.  Cooling may be facilitated by causing the hopper to oscillate about a horizontal axis.
Patent GB-1086337-A (GB)
Title: Tensile testing machine
Inventor: SOPHY YVON
IPC: F02B45/06
Filed: 1966-08-25
Abstract: 1,086,337. Testing tensile stress. COMMISSARIAT A L'ENERGIE ATOMIQUE. Aug. 25, 1966 [Sept. 2, 1965], No. 38227/66. Heading G1S. A high-speed tensile testing machine comprises a stationary cylinder block 1 which is fitted internally with a movable piston 4, a piston rod 5 coupled to the extremity of a test piece 7, a rigid head 9 positionally adjustable relatively to said stationary cylinder and coupled to the other extremity of said test piece, means whereby a compressed gas at variable pressure is admitted into a space 24 in said stationary cylinder block 1, a shearing member 15 which provides a temporary coupling between said movable piston and said stationary cylinder and which is adapted to fail by fast shear fracture initiated by explosive means. The coupling 15 is in the form of two detonation tubes which are positioned in a bracket 14 at the start of the operation. A compressed gas or compressed air-pressure is admitted into a tubular chamber 38 which forms part of the hydraulic brake and the pressure within a bottle 26 is regulated to a predetermined value. When this pressure has been reached valves 32, 30 are opened and a pressure exerted on the upper face of piston 4. At this moment the detonation tubes 15 are fixed causing rupture at the weakened position which allows the pressurized gas in space 24 to expand and force piston 4 downwards. Thus a tensile stress is exerted on the test piece with sufficient acceleration to obtain the desired speed. At the end of travel the piston 4 contacts a piston 35 of the hydraulic brake which drives oil 39 back into the tubular chamber 38 displacing the compressed gas 40. A compressor is connected to bottle 26 through non-return valve 29.
Patent GB-923738-A (GB)
Title: Novel steroid compounds and processes for the preparation thereof
IPC: C07J1/00
Filed: 1959-10-14
Abstract: The invention comprises 4b -bromo-17a -ethyl-17b -hydroxy-5b -androstan-3,11-diones of the general formula <FORM:0923738/IV(a)/1> wherein R represents a hydrogen or bromine atom, and the preparation of the above compound wherein R represents hydrogen by treating 17a -ethyl-3a ,17b -dihydroxy-5b -androsta-11-one with an N-bromoamide such as N-bromosuccinimide and, when required, brominating this compound to form the compound of the above formula wherein R represents a bromine atom, e.g. by means of bromine in a solvent such as dioxan.  Specification 923,737 also is referred to.
Patent GB-841167-A (GB)
Title: Process for the production of a new acylated derivative of 19-nor-testosterone
IPC: C07J1/00
Filed: 1957-12-09
Abstract: The invention comprises n-butyl-19-nortestosterone - trans - hexahydroterephthalate and the preparation thereof by condensing 19 - nor - testosterone with n - butyl - transhemihexahydroterephthalate, e.g. in an inert solvent such as benzene, or with the acid chloride of the said hemi-ester in the presence of an agent capable of taking up hydrochloric acid, e.g. a tertiary base such as pyridine, methylethylpyridine or triethylamine.  One detailed example is given in which the n-butyl-19 - nor - testosterone - trans - hexahydroterephthalate formed is purified by chromatography on alumina.  Specification 817,736 is referred to.ALSO:A therrapeutic composition comprises a solution of N-butyl-19-nor-testosterone-trans-hexa-hydroterephthalate in a neutral vegetable oil to which may be added a glycol or other injectable solvent, a thixotropic gel which is obtained by adding aluminium monostearate or aluminium 2-ethylhexarvate to an oily solution of the above steroid ester, or a microcrystalline aqueous suspension or emulsion of the above steriod ester. Specification 817,736 also is referred to.
Patent GB-1477047-A (GB)
Title: Indicator light circuit
IPC: G08B29/12
Filed: 1974-09-02
Abstract: 1477047 Testing indicator lamps WESTINGHOUSE ELECTRIC CORP 2 Sept 1974 [18 Sept 1973] 38267/74 Heading G1U A number of indicator lamps 10, which connected across the low-voltage windings 12 of transformers 14 and which respond to signal generating circuits (not shown) via leads 22-25 connected to the high-voltage windings 16, are tested by applying a signal to the high-voltage windings from a test generator via leads 28. Diodes 26, 32 prevent current flow from any one signal circuit to another via the transformer windings and common return 20.
Patent GB-1094459-A (GB)
Title: Diode parametric amplifier
Inventor: AITCHISON COLIN STUART
IPC: H03F7/04
Filed: 1966-08-26
Abstract: 1,094,459. Parametric amplifiers. MULLARD Ltd. Aug. 26, 1966, No. 38306/66. Heading H3B. In a parametric amplifier two varactor diodes, each series resonant at the idler frequency, are connected together in series-aiding relationship to form a closed loop in which, at the idler frequency, each diode completes the series resonant circuit of the other. Preferably the diodes are connected together by a transmission line one half wavelength long at the idler frequency so that the assembly is resonant at the idler frequency. The centre conductor G of the signal input coaxial line is connected to the mid-point of conductive strip H, which forms part of the transmission line, so that the loop is balanced at the idler frequency. In one arrangement the larger diameter end of one diode rests on the bottom of waveguide W and the narrow end is recessed in strip H, while the larger end of the other diode is recessed in strip H and the narrow end is recessed in the bottom of the waveguide. The body of the latter diode is spaced from the bottom of the waveguide so that diodes are situated symmetrically within the waveguide. In a modified arrangement both diodes are recessed equally in the adjacent members.
Patent GB-1517324-A (GB)
Title: Desulphurisation of steel
IPC: C21C7/064
Filed: 1975-09-19
Abstract: 1517324 Desulphurization of steel SUMITOMO METAL INDUSTRIES Ltd 19 Sept 1975 38623/75 Heading C7D Molten steel is desulphurized by contact in a ladle with a granular slag-forming agent comprising 45 - 70 wt. per cent CaO, 10-30% Al 2 O 3  and 3-14% CaF 2  in amount 0.2 to 4% based on the molten steel, the slag-forming agent containing < 10% MgO, < 7% SiO 2 , < 3% FeO and < 0.2% P 2 O 5 . The granule size is between 0.3 and 25 mm; the agent may be made as a mixed powder; in this case the granule size may be 1-2 mm; or as a bound mixture, made by firing at 800-1300C in a rotary mixer the above ingredients plus Na silicate, Methyl silicate or silica sol as binder, or alternatively the ingredients may be melted together and subsequently pelletized; the "bound" or "melted" pellets have size 20-25 mm; cube briquettes of this size may also be provided. Where FeO content of the agent is high, or where Fe oxide slips into the ladle from the converter slag during pouring the steel, up to 0.4% Al or up to 0.3% Ca (based on the steel) may be added either to the ladle as alloy granules or to the slag as a reducing agent; where the melting rate of the agent is low, an "exothermic" agent may be used - a mixture of 24-29% Al + 76.71% Fe ore is added thereto, so that on reaction, Fe ore is reduced to Fe, Al 2 O 3  is produced to provide part of the above-stated amount, and Al is left in excess to reduce any FeO. Where ultra-low S steel is required, the treatment may be followed by inert gas agitation in vacuo, e.g. with Ar.
Patent GB-1504449-A (GB)
Title: Tion
IPC: H04B10/152
Filed: 1976-09-17
Abstract: 1504449 Data transmission HEWLETT-PACKARD CO 17 Sept 1976 [28 Nov 1975] 38635/76 Heading H4P A binary coded signal 22 having first and second states is converted into a pulse coded signal 24 comprising a data pulse, such as 26, of a first polarity when the binary signal changes from the first to the second state; a data pulse, such as 30, of a second polarity when the binary signal changes from the second to the first state; and a refresh pulse, such as 28 or 32, having the same polarity as the preceding data pulse when there is no subsequent data pulse for a predetermined time interval T R . The refresh pulse is repeated periodically until a subsequent data pulse is generated and thus provides an indication that the transmission link, e.g. a fibre-optic link, is operative during periods when the binary coded signal remains unchanged. Suitable circuit arrangements for generating and decoding the pulse coded signal 24 are described with reference to Figs. 3 to 11 (not shown).
Patent GB-1355399-A (GB)
Title: System and apparatus for controlling the feed of a sawing machine
IPC: B23D47/12
Filed: 1971-09-15
Abstract: 1355399 Circular saws D KALTENBACH 15 Sept 1971 [17 Sept 1970] 38730/71 Heading B5L A system for regulating the sawblade feed of a sawing machine has an adjusting device for the feed speed, and the power to the sawblade drive is measured by a sensing device 38 and used to control the adjusting device 21. The device 21 is adapted to be moved between two stops set in accordance with the maximum and minimum feed speeds for a workpiece to be cut, such that when the maximum permissible power to the sawblade drive is exceeded the adjusting device is moved rapidly into contact with the minimum feed speed stop and then slowly in a direction towards the maximum feed speed stop. In a circular saw machine, Fig. 1, the blade 4 is driven by a motor 5 the power to which is measured by an ammeter 38. The blade is mounted on a pivoted arm 3 for movement towards a workpiece 6 under the control of a piston and cylinder device 9, 11. During feed of the saw blade, fluid at constant pressure is fed by pump 14 via conduit 26 to the upper space of the cylinder 9, and fluid escapes from the lower space of the cylinder under the control of a throttle valve 20 adjusted by an adjustment member 21. The member 21 can be moved between adjustable stops which determine the maximum and minimum feed speeds. The position of the member 21, and hence valve 20, is determined by the position of a piston 31 of a cylinder 32. The upper cylinder space 33 is connected via conduit 35 to the pump 14, and the lower space 36 is connected via a throttle valve 37, a parallel one-way valve 40, and a conduit 39 to a return pipe. A control valve 34 is present in conduits 39 and 35. In operation, when the ammeter 38 detects a supply of power to the motor 5 which is greater than the desired maximum it causes valve 34 to be reversed. This permits pressure fluid to be admitted via valve 40 to the cylinder space 36 so that the member 21 is rapidly moved to the minimum feed speed position. The power requirement is thus reduced and the valve 34 returned to the position shown, in which fluid from pump 14 is fed to cylinder space 33. Thus the member 21 is moved slowly towards the maximum feed speed position, the rate of movement being controlled by the setting of throttle valve 37.  A valve 23 is provided to enable rapid return of the sawblade after cutting.
Patent GB-1366355-A (GB)
Title: Chromium plating
IPC: C25D5/14
Filed: 1971-08-18
Abstract: 1366355 Composite electro-plating M & T CHEMICALS Inc 18 Aug 1971 [21 Aug 1970] 38793/71 Heading C7B A Cr composite coating is prepared on an article made of basis material provided with a Cu plate 5-50 microns thick by depositing thereon an inner layer of Co e.g. 0À25-12À5 microns thick, a middle layer containing Ni (e.g. Ni-Co alloy) 1-12À5 microns thick, and an outer layer of bright decorative Cr e.g. at least 0À02 micron thick. The basis material may be Fe alloy e.g. steel, brass, bronze, Zn, Zn alloy e.g. die casting, Ni, Ni alloy or plastic, e.g. ABS, polypropylene, polyethylene, polystyrene or polyacrylate. The initial Cu plate may be electro-deposited from a cyanide, pyrophosphate, acid sulphate or fluoroborate bath; Rochelle salt, phenol sulphonic acid, a heterocyclic urea, polyether and polysulphide are specified as additives. The Co layer may be formed by decomposition of cobalt carbonyl, or electro-deposition from a sulphamate, chloride, sulphate, mixed chloride-sulphate, fluoborate or pyrophosphate bath; many additives are specified, e.g. boric or citric acid, saccharin, sodium allyl or benzene sulphonate, sodium di-n-hexyl succinate, bis-#-hydroxyethyl ether of 2-butyne-1, 4-diol, sodium beta-styrene sulphonate, dibenzene sulphonimide, sodium-3-chloro-2-butene-1- sulphonate, 2 methyl-3-butyn-2-ol, N-1, 2-dichloropropenyl pyridinium chloride, N-allyl quinaldinium bromide, 2, 4, 6-trimethyl N- propargyl pyridinium bromide, sodium lauryl or other sulphate, sodium di-n-hexyl or benzene sulphosuccinate, and bis-omega sulphopropyl. The Ni layer may be electro-deposited from a Watts, sulphamate, sulphate, fluoborate or high chloride bath containing primary and secondary brighteners, e.g. 2-butyne-1, 4-diol or quaternized pyridine derivatives and saccharin, sodium benzene and allyl sulphonates. Prior to Ni electro-deposition, a stratum of particles, e.g. of plastics, talc, kaolin, MoS 2 , WS 2 , graphite, wax, barytes or other pigments, silica, alumina, Al, activated C, silicates, carbonates, carbides or colloidal S, may be affixed to the Co layer, at least some of the particles intercepting the Ni latex surface. The same NiSO 4  - CoSO 4  -NiCl 2 - H 3 BO 3  bath may be used for plating the Co and Ni- Co alloys layers by adjusting the current and additive system. The Cr plating may be effected from a bath containing CrO 3 , SO 4 , F, SiF 6 , Sr ions and fume suppressant to obtain a microcracked and porous structure.
Patent GB-1195045-A (GB)
Title: Washing Machines.
IPC: G05D16/06
Filed: 1967-08-23
Abstract: 1,195,045. Dish washing machines. INDUSTRIE A. ZANUSSI S.p.A. 23 Aug., 1967 [3 Sept., 1966], No. 38917/67. Heading A1F. [Also in Division D1] In a dish washing machine, the rotation of a sprinkler 1 is transmitted to a basket 11 by means of a belt 7. The sprinkler is of the reaction type driven by liquid supplied from a pump 4. The belt passes around a pulley 5 and a pulley 6 attached to a shaft 8, a roller 9 of which engages a ring 10 on the basket to rotate the basket.
Patent GB-1030404-A (GB)
Title: Improved aid to artificial respiration
Inventor: RITCHIE DAVID
IPC: A61M16/00
Filed: 1962-10-16
Abstract: 1,030,404. Hand pumps. D. RITCHIE. Jan. 15, 1964 [Oct. 16, 1962], No. 39105/62. Heading FIN. [Also in Division A5] Artificial respiration apparatus or apparatus for use in noxious atmospheres, comprises a pair of cylinders 16, 17 mounted in a casing each cylinder containing a piston 14, 15 on a piston rod 12, 13 and the pistons being capable of simultaneous operation by handle 8. The cylinders are connected to a facepiece (not shown) via air chambers 22, 23, connections 24, 25 and tubes 26, 27 (not shown). Pistons 14, 15 are provided with non return valves 18, 19 and cylinders 16, 17 with non return valves 20, 21 and rotary disc valves 28, 29. Cylinder 16 is connected by tube 34 to an oxygen source (not shown) which is in communication with cylinder 16 whether valve 28 is open or closed. Cylinder 17 is provided with whistle 35. The casing comprises portions 1, 2 joined by toggle arms 3 (not shown). In use, when handle 8 is pressed downwards valve 18 closes, valve 20 opens and fresh air is passed to the patient; and simultaneously air is forced out of valve 19 while valve 21 is closed. When handle 8 is raised piston valve 18 is opened permitting a charge of fresh air to be drawn into cylinder 10 and valve 20 is closed. Simultaneously air is drawn out of the patient's lungs by cylinder 17 through valve 21, valve 19 being closed. The whistle 35 will blow on each exhale stroke and if there is a blockage on both inhale and exhale strokes.