baber/WOPTO huggingface dataset:
Patent GB-1536768-A (GB)
Title: Electrical generation
IPC: H01M8/14
Filed: 1976-11-04
Abstract: 1536768 Electrochemical cells UNITED STATES DEPARTMENT OF COMMERCE 4 Nov 1976 [10 Nov 1975] 45981/76 Heading H1B Electrochemical cells comprise a porous sintered disc 11 (e.g. of Al 2 O 3 ) impregnated with molten salt (e.g. molten alkali metal carbonates), a silver screen cathode 12 through which air and CO 2  pass via line 14 as carbonate ions which, in turn, pass into a molten lead layer 15. A molten free flowing alkali metal carbonate layer 17 containing H 2  fuel along with some lead oxide; H 2  is supplied via line 18. In another embodiment Fig. 2, not shown the cathode (34) resides on top of the free flowing salt layer.
Patent GB-1199934-A (GB)
Title: Improvements in or relating to Photo-Electric Devices
Inventor: CAVE KENNETH JOHN SIDNEY
IPC: H01L21/00
Filed: 1966-10-14
Abstract: 1,199,934. Photo-electric devices. PLESSEY CO. Ltd. 25 Sept., 1967 [14 Oct., 1966], No. 46126/66. Heading H1K. In a photo-diode the P-type zone comprises a region 6 of relatively small cross-section connected to an electrode 8 on the surface 10 and joined to a broader region 5 spaced from the surface 10. In the form shown the region 5 is diffused into an N-type substrate 1 through a photo-resistively defined oxide mask, and after removal of the mask a further N-type layer 9 is epitaxially deposited over the region 5. The region 6 is then diffused into this layer and an oxide coating 7 and electrode 8 are applied. The regions 5, 6 may alternatively be formed by ion implantation. Further semi-conductor devices such as metal-oxide-semi-conductor field effect transistors may be formed within the layer 9 to provide integrated circuits acting as amplifiers or pulse generators for scanning purposes in television cameras or infra-red photography.
Patent GB-997545-A (GB)
Title: Improvements in or relating to surface-broaching machines
IPC: B23D37/06
Filed: 1963-11-22
Abstract: 997,545. Broaching. GEORG FISCHER A.G. Nov. 22, 1963 [Nov. 24, 1962], No. 46323/63. Heading B3L. A broaching machine comprises a continuously-rotating drum 10 having means 26 to clamp workpieces with their faces to be machined facing radially outwards, and a broachholder 15 curving around part of the drum in the path of the workpieces. The drum is rotated slowly by a motor 5 and worm-gearing. The tool has lower lugs engaging a bar 14 and an upper abutment 17 clamped to a bar 11. The tool bits may be spaced circumferentially and laterally and each cut to the same depth or may be spaced circumferentially one behind the other and take increasing cuts or may be of both sorts. In operation, a feeding device or an operator places a workpiece 25, Fig. 5 (at the position 57) into a recess in a holder 60 on a slide 42. As the drum 10 rotates in the direction 24, fixed cams engaging rollers connected to the slide 42 move the workpiece to the upper position shown in Fig. 5 while a clamping jaw 47 is moved to a clamping position by a piston 37, in a pivoted cylinder 36, acting through links 34, 35. The workpiece is machined by the broach and a valve 69 is then actuated by levers engaging fixed stops to release the pressure in the cylinder 36 and allow a spring 29 to swing the clamping jaw 47 away from the work, which drops into a shoot and is removed through an opening 67. In a modification, two side-byside tools are provided together with two coaxial work-carrying drums.
Patent GB-1170597-A (GB)
Title: Improvements in and relating to methods of Developing Electrostatic Images with the use of Liquids
IPC: G03G9/18
Filed: 1966-10-21
Abstract: 1,170,597. Electrostatography. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Oct.21, 1966 [Oct.23, 1965], No.47174/66. Heading G2H. A latent electrostatic image on a web 3 is developed by passing the layer over a drum 7 in a bath 8 containing a layer of metallic liquid 1 (e.g. Hg) and a layer of electrically insulating liquid 2, a conductive toner 4 being dispersed along the interface of the layers and the drum being so positioned that a thin layer of the insulating liquid separates web 3 from the metallic liquid during development and the toner particles pass through this thin layer to develop the image. The insulating liquid may be petrol, benzene, cyclohexane, turpentine, silicon resin and/or a halogenated hydrocarbon. The toner may be a metal, or a metal sulphide or oxide. Bath 8 is provided with an agitator 10, liquid and toner replenishing openings 11 and 12, a photo-cell or float to automatically control the liquid level, and electrodes 9 to remove the charge formed in conductive liquid by contact with the toner. In a modification drum 7 may be light-sensitive, and electrostatic images formed thereon developed in the bath and transferred to a received sheet.
Patent GB-1514167-A (GB)
Title: Injection moulding
IPC: B29C45/26
Filed: 1975-10-31
Abstract: 1514167 Injection moulding BONE CRAVENS LTD 31 Oct 1975 [31 Oct 1974] 47237/74 Heading B5A After the injection stroke of a reciprocating screw plasticizer having a reservoir 43 in the flow path between the injection barrel and an injection nozzle 11<SP>1</SP> mounted thereon, the screw is retracted to plasticize and accumulate the next charge while pressure is maintained in the runner system by means, e.g. piston 42, for forcing material from the reservoir into the runner system. A valve 14 prevents communication between the plasticizer and the runners in this phase. The nozzle 11<SP>1</SP> includes a cylinder 41 which slides over the piston 42 which is attached to an extension 40 of the barrel. During injection the plasticizing unit is allowed to move away from the mould so that the piston 42 retracts and material accumulates in front of it. After injection a pull-in cylinder 10 (Fig. 1, not shown) forces the plasticizing unit towards the mould and the piston 42 applies pressure to the material accumulated in front of it. A stop 45 is adjustable to limit the motions of the piston.
Patent GB-1161347-A (GB)
Title: Improvements in or relating to apparatus comprising Capacitative Stores for Electrical Energy
Inventor: SMITH IAN DOUGLAS
IPC: H03K3/53
Filed: 1966-10-21
Abstract: 1,161,347. Pulse generating circuits. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 2 Oct., 1967 [21 Oct., 1966], No. 47424/66. Heading H3P. [Also in Division H1] A pulse generator comprises at least one capacitive energy store comprising at least two electrodes 15, 19 having the space between them filled with a polar liquid of high dielectric constant the configurations of said electrodes being such that when a voltage is applied between them a greater electric field exists at the surface of one electrode 19 than at the other 15, the capacitive energy store being charged such that the one electrode 19 is negative relative to the other 15. When so polarized, the breakdown voltage may be several times that pertaining when the polarity is reversed. The differential electric field may be obtained by shaping the electrodes so as to present different surface areas to one another e.g. as shown, or by use of concentric construction (Fig. 1, not shown) or by having a common planar or I-section electrode, co-operating with a rod on either side (Figs. 4-7, not shown). Alternatively, plane electrodes of equal area may be employed each associated with a dielectric liquid of different conductivity or dielectric constant, the two liquids being isolated by a plastic film parallel to the electrodes. The dielectric liquid may be deionized water, ethylene glycol, glycerine or a lower alcohol, having dielectric constants in the range 81-20. A continuously operating ion exchanger can be included so as to maintain the water at low conductivity. Delay line. construction.-The capacitive store shown may take to the form of a pair of delay lines 15, 18, 19 having a common electrode 15 formed of methyl methacrylate sheathed with copper foil of specified dimensions. Part 25 of electrode 18 is shaped so as to form with electrode 15 a liquid filled spark gap. The two delay lines are preferably connected as a Blumlein modulator and are charged from a Marx pulse generator 26 via a brass tube 27 enclosed in methyl methacrylate 28, the field at the air/ water interface being reduced by a polyethylene collar 29. The delay lines are housed in a methylmethacrylate tank 12 containing deionized water and are coupled via matching devices 21, 21<SP>1</SP> to an X-ray tube 22 of the type described in Specification 1,084,014.
Patent GB-1381171-A (GB)
Title: Timepiece
IPC: G04B3/04
Filed: 1972-10-16
Abstract: 1381171 Watches CITIZEN WATCH CO Ltd 160ct 1972 [140ct 1971] 47623/72 Heading G3T A winding stem 3, or similar operating member, of a timepiece is located on a base-plate 1 by means of a resilient sheet metal member 4 having a part 4a fixed to the base-plate and a part 4b for resiliently holding stem 3 against plate 1. Stemholding part 4b includes an elongated opening 4k with rounded ends which are incorporated in the side pieces 4g, 4f formed by bending at 4n and 4m. Also incorporated in member 4 are a clutch lever 4c having its free end formed into an open ring 4h which fits in the recess 7c on the clutch wheel 7, and arm 4d with recesses 12, 13, 14 into which a projection 6e on setting lever 6 fits, lever 6 being pivoted at 6a. Tongue 6b fits into groove 3a on stem 3 and projections 6c, 6d operate clutch lever 4c. In the centre position of the stem's three positions, rotation of the stem corrects a calendar by means not disclosed.
Patent GB-1066309-A (GB)
Title: Improvements in or relating to the preparation of trialkylphosphines
IPC: C07F9/50
Filed: 1965-11-10
Abstract: Trialkylphosphines are prepared by (i) adding water to a mixture comprising a trialkyl phosphine, an ether, and a magnesium halide, preferably obtained by reacting a lower alkyl Grignard reagent having 1 to 5 carbon atoms with a phosphorus trihalide in the presence of an ether, to form magnesium chloride hexahydrate, (ii) removing the hexahydrate, (iii) adding water and a hydrogen halide and/or sulphuric acid to form an aqueous phase containing trialkylphosphine salt, (iv) separating ether from the mixture and (v) adding a base to the aqueous phase to liberate the trialkylphosphine. The order of (iii) and (iv) may be reversed.  An inert hydrocarbon diluent may be used in the reaction in addition to the ether, and may be n-hexane, n-heptane, n-octane, isooctane, benzene, cumene, toluene, or xylene. Stoichiometric amounts of the Grignard reagent and trihalide are preferred in the reaction, while 2 to 10 moles of the ether per mole of the Grignard reagent are preferred.  Other preferred features include:-at least 5 moles of water per mole of Grignard in (i), 1 to 2 equivalents of acid per mole of trialkylphosphine, and 100 to 400 grams of water per mole of the trialkylphosphine in (iii), and 1 to 1.3 equivalents of base per equivalent of acid added.  The product may be purified by treating with activated carbon and filtering through diatomaceous earth.  Suitable Grignard reagents are C2H5-MgCl, C2H5MgBr, n - C3H7MgCl, n - C3H7Mgl, i - C3H7MgBr, n - C4H9MgCl, s - C4H9Mgl, f-C4H9MgBr, i-C4H9MgCl.  Suitable ethers are diethyl ether, dibutyl ether, dioxan, tetrahydrofuran, tetrahydropyran, 2-methyl-tetrahydrofuran, 2-ethoxy-tetrahydropyran, tetrahydrofurfuryl ethyl ether, dihydropyran, and Nethylmorpholine. Suitable bases are ammonium alkali metal or alkaline earth metal hydroxides, carbonates, bicarbonates and basic phosphates.  Reference has been directed by the Comptroller to Specification 840,438.
Patent GB-1537778-A (GB)
Title: Photocopying device provided with a transparent plate
IPC: E05C19/16
Filed: 1976-11-17
Abstract: The copying machine contains a cover (2) which is pulled onto the glass plate (1) by an electromagnet or permanent magnet (154), in order to press the original against the glass plate. In order to reduce the force which is required when raising the cover after copying, an additional electromagnet (152) is provided which is automatically excited after each copying cycle and whose polarity is directed opposite to the polarity of the first mentioned electromagnet or permanent magnet. <IMAGE>
Patent GB-1086168-A (GB)
Title: Face-centred-cubic metal sheets and a process for their preparation
IPC: C22F1/10
Filed: 1964-11-26
Abstract: In a process of forming a sheet of a face centred cubic metal with a melting point of 1832 DEG -2804 DEG F. and containing 0.01-5% by volume of dispersed refractory oxide particles of average size 5 to 250 millimicrons and which have a melting point above 1832 DEG F. and a free energy of formation at 1832 DEG F. above 60 kilocalories per gm. atom of oxygen, a powder mixture of the metal and oxide is compacted to a body having a density greater than 30% theoretical and is then hot worked e.g. by swaging, extrusion or forgoing, cold rolled above the recrystallisation temperature but below the melting temperature.  The metal powders may be Ni, Cu their alloys and also alloys of Fe and Co and the refractory oxide exemplified is thoria. In the case of a mixture of Ni and thoria, compaction is effected hydrostatically at 60,000 p.s.i. or by rolling.  The compact is sintered at 2200 DEG F. in hydrogen, extruded at 1000 DEG -2400 DEG F. e.g. at 1750 DEG F. to a 13.1 extrusion ratio, cold rolled at a temperature not exceeding 1000 DEG F. in a direction parallel to the extrusion direction to a reduction of 30%-70% and then heat treated at 1000 DEG -2400 DEG F.  The sheet may be further treated by rolling below the recrystallization temperature. Alternatively the powder compact may be hot forgedat 1200 DEG -2300 DEG F., cold rolled to a reduction of at least 85% and then heat treated at 1500 DEG -2600 DEG F. The Ni compact may be canned in steel prior to forging and the steel cam is removed in hot nitric acid prior to the cold rolling step.  The finished sheet has the following crystallographic orientation (321) <1<\>b21), (100) <001), (110) <1<\>b12>, or (110) <001>.
Patent GB-1210374-A (GB)
Title: Touch activated dc switch and programmer array
IPC: H03K17/96
Filed: 1967-10-24
Abstract: 1,210,374. Keyboards. OPTICAL SYSTEMS Inc. 24 Oct., 1967 [28 Oct., 1966], No. 48355/67. Heading G4H. [Also in Division H3] A touch operated switching circuit comprises a semi-conductor controlled rectifier 1 connected in series with a D.C. source 12, a load 14 and a parallel combination of a resistor 10 and a capacitor 11. When antenna 6, connected to gate 4, is touched the operator's body couples stray ambient frequency A.C. to the gate causing the S.C.R. to turn on. Initially a large current flows through capacitor 11 to the load, the current falling off as the capacitor charges. When the current falls below the holding current the S.C.R. switches off. The capacitor then starts to discharge through resistor 10. If contact with antenna 6 is maintained, the next positive half cycle of the ambient frequency A.C. turns the S.C.R. on again and, if the capacitor has fully discharged, gives rise to an output current pulse as before. If the capacitor only partially discharges the second and subsequent pulses are very small and may be negligible. The positions of the parallel circuit 10, 11 and the load 14 may be interchanged. A plurality of S.C.R. circuits as shown in Fig. 1 may have a common D.C. source and load 14 and may be used as a touch responsive keyboard. If each switching circuit has a different time constant, determined by R.C. network 10, 11, each circuit will produce pulses having different durations. The output from the circuit may be squared and integrated to give a voltage output having a magnitude determined by which of the touch terminals is touched. An exclusive-OR circuit may be connected between the S.C.R.s and the common load to prevent outputs from two or more stages being applied simultaneously to the load. Fig. 8 shows an ON-OFF circuit including two touch operated circuits having S.C.R.s 1 and 1<SP>1</SP> to control conduction of a third S.C.R. 23. When S.C.R. 23 has been turned on by touching antenna 6 it will remain on until antenna 6<SP>1</SP> is touched, causing S.C.R. I<SP>1</SP> to conduct and the voltage at its anode 2<SP>1</SP> to drop. This change of voltage is coupled to the anode of S.C.R. 23 by capacitor 28.
Patent GB-1039729-A (GB)
Title: Smoke generator
Inventor: POPKIN KEITH IAN
IPC: F41H9/06
Filed: 1963-12-11
Abstract: Smoke is produced by passing oil along a duct, bleeding CO2 continuously into the duct to produce a foam and heating the foam to produce smoke.  In the apparatus described and depicted in Fig. 1 (not shown), CO2 from a reservoir and at a pressure of about 12 p.s.i.g. is used to force oil (e.g. liquid paraffin B.P.) from a reservoir into a pipe into which the CO2 is bled.  The foam passes to an electrically heated coil and thence to an outlet nozzle.  Various adaptors for use with the device to give different discharge flows of smoke are described.
Patent GB-1349733-A (GB)
Title: Device for compressing and drying a working fluid
IPC: F04B39/16
Filed: 1972-07-25
Abstract: 1349733 Drying compressed gas ATLAS COPCO A B 25 July 1972 [6 Aug 1971] 49043/73 Divided out of 1349732 Heading F1N The subject matter is the same as that described with respect to Fig. 1 of Specification 1349732, but the claims are directed to the feature that, upon unloading of the compressor 1, 33, the motor 15 is stopped. When the compressor is working a device 18 pressurizes an actuator 19 which closes switch 17 to operate motor 15. Upon unloading of the compressor by the device 18, supply of fluid pressure to the actuator 19 ceases and switch 17 is opened.
Patent GB-1286988-A (GB)
Title: Photographing exposing apparatus
Inventor: HUDOCK EDWARD PAUL
IPC: G03B27/10
Filed: 1969-10-06
Abstract: 1286988 Contact printing apparatus TIME Inc 6 Oct 1969 [7 Oct 1968] 49050/69 Heading G2A Photographic exposure apparatus for exposing a light-sensitive surface of a plate through a photographic film comprises an upper housing 11, a light source 14 within the housing, a rotatable drum 16 for carrying the plate and film into the path of the light rays of the light source, locking means for locking the plate to the drum, means for registering the plate on the drum, means for registering the film on the drum in overlying relation with respect to the plate and suction means 41 communicating with the drum for holding the plate and film on the drum. The drum includes a recessed portion for accommodating the plate, the edges of the plate being held by pivotally mounting curved locking clamps 33, the film and the plate being registered with the drum by complementary holes and pins. An adjustable masking shield 17 defines an opening 18 to form a limited zone for exposing the plate. The drum has formed in its recess longitudinal and circumferential channels 39 connected by a flexible hose 45 to a vacuum pump 40. The upper housing 11 is mounted on a lower housing 10 which contains a motor 22 for driving the drum via a clutch 23 and a gear box 24, an exposure indicator 68 and translator 69, which regulates the speed of rotation of the drum as a function of the exposure light intensity. A hood 12 and exhaust conduit 13 are connected to a blower which pumps air from the housings, the air being admitted through louvre and filter assemblies 62, 72, so as to cool the plate and film and remove ozone, dirt and dust.
Patent GB-1147658-A (GB)
Title: Process for the manufacture of carboxylic acid vinyl esters
IPC: B01J27/00
Filed: 1966-11-03
Abstract: 1,147,658. Vinyl esters. FARBWERKE HOECHST A.G. 3 Nov., 1966 [3 Nov., 1965], No. 49275/66. Heading C2C. [Also in Division B1] Vinyl esters are prepared by reacting ethylene, molecular oxygen and a carboxylic acid in the gaseous phase in the presence of a catalyst comprising a noble metal (Groups VIII), an inert carrier, and an alkali metal, alkaline earth metal, zinc or cadmium salt of an oxygen acid of phosphorus, or a mixture of two or more of such salts. Ortho-, pyro- and/or metaphosphates, or phosphites may be used and the reaction may be performed in two reaction zones with different phosphorus acid salts. Acetic, propionic, n- and isobutyric and valeric acids are mentioned and examples describe the preparation of vinyl acetate, and vinyl isobutyrate.
Patent GB-1032798-A (GB)
Title: Information storage apparatus
IPC: G01J3/36
Filed: 1964-12-04
Abstract: 1,032,798. Read-only stores. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 4, 1964 [Dec. 23, 1963], No. 49360/64. Heading G4A. [Also in Division G1] Data is read from an optical read-only store by passing light through a storage device and detecting the presence or absence of particular absorption lines. A punched card controls the supply of binary-coded fluid signals to two piston adders which position a selected 3-element column of an 8 x 8 x 3 memory array 12 (Fig. 1, not shown), beneath a sensing head linked to a spectroscope. The three storage elements of the column have respective optical filters f1, f2, f3 (Fig. 5, not shown), with different pass-bands, each backed by a combination of any of three data filters, E1, E2, E3 (not shown), comprising rare earth salts. Light is conducted to the selected column by a first light pipe and that transmitted by the filters is passed along a second light pipe to a diffraction grating in the spectroscope. Photodiodes in the focal plane of the grating test for the presence of particular absorption peaks of the filters E (not shown) in the pass-bands of the filters f (not shown). The latter filters may also serve to filter out wavelengths which would give false readings due to diffraction orders not being used. The light pipes may be bundles of light fibres. It is mentioned that the elements of the selected column may be scanned in turn, and the filters f (not shown), dispensed with.
Patent GB-1092349-A (GB)
Title: Device for winding yarn onto a spool by means of a ring
Inventor: GRUET DANIEL
IPC: D01H7/56
Filed: 1965-11-25
Abstract: 1,092,349. Spinning device. SOCIETE RHODIACETA. Nov. 25, 1965 [Nov. 26, 1964], No. 50186/65. Heading DID. [Also in Division F2] A spinning and winding on device comprises, a ring 1 with a frusto-conical outer surface and a ring carrier 2 with a complementary inner surface, there being means to supply gas under pressure to the inner surface of the carrier to lift the ring out of contact with the carrier. A yarn being wound passes between the ring and its carrier. Gas flows via one or more pipes 9 to an annular chamber 6 in the carrier 2 whence it flows via apertures 7 to a recess in the inner surface of the carrier. The apertures 7 are inclined to the radial direction so that the gas passing therethrough causes the ring 1 to rotate. In the inoperative state ring 1 closely fits the conical interior of carrier 2.
Patent GB-1027137-A (GB)
Title: Vibratory screening machine
IPC: B07B1/46
Filed: 1964-12-10
Abstract: 1,027,137. Screening apparatus. RHEWUM RHEINISCHE WERKZEUG-UND MACHINENENFABRIK G.m.b.H. Dec.10, 1964 [Dec.13, 1963], No. 50248/64. Heading B2H. A vibratory screening machine has a screen 3 mounted in a frame 2 secured in a box 1 and vibrated by means of rams 7 resiliently mounted above the screen in contact therewith and driven by means of a vibrator 10 arranged on a support 9 which is so mounted as to prevent the vibrations imparted thereto from being transmitted to the box 1. The box has an inlet 5 for material to be screened and an outlet 6 for toppings. In Fig. 1 a number of rams 7 are resiliently mounted on the support 9 which is spaced from the box 1 by springs 8. An electro-magnetic vibrator 10 is arranged on the support 9. In Fig. 2, the rams are associated in groups, each of which has its own vibrator 10 mounted on a corresponding support 9. A number of screens may be arranged in tiers and may have a common vibrator or separate vibrators.