baber/WOPTO huggingface dataset:
Patent GB-1393188-A (GB)
Title: Lifting device
IPC: E02B17/08
Filed: 1973-10-17
Abstract: 1393188 Step-by-step jacks SCHIESS AG 17 Oct 1973 [18 Oct 1972] 48351/73 Heading B8J [Also in Division E2] A step-by-step climbing jack comprises a traction element formed from a bunch 5 of lamellar strips 24, an upper clamping unit 3, a lower clamping unit 4 and a piston and cylinder unit 2. The upper clamping unit 3 is attached to piston 12 of the unit 2 while the lower clamping unit 4 is attached to cylinder bottom 9. Each of the clamping units 3, 4 has an opening through which the bunch 5 passes and across which extends a series of laminae 23 which alternate with the strips 24 of the bunch 5. Each clamping unit 3, 4 has a set of plate springs 30 acting through a piston head 27 and a piston 26 to urge a ram 25 against the laminae 23 to clamp the strips 24 of the bunch 5. Admission of hydraulic fluid though an inlet 32 relieves the clamping force alternately in the clamping units 3, 4 for conventional step-bystep operation of the jack by the piston and cylinder unit 2. The traction element 5 may be suspended from a support (7), Fig. 1 (not shown), by a clamping unit (6) similar to units 3, 4. Alternatively the clamping action between the laminae 23, 24 may be produced by wedge action, Fig. 7 (not shown). The individual strips 24 of the bunch 5 may be separately suspended on a support (35), Fig. 6 (not shown), through piston and cylinder units (36) interconnected to balance the tension in each strip 24.
Patent GB-1522389-A (GB)
Title: Production of gas from coal
IPC: C10K1/20
Filed: 1976-11-26
Abstract: 1522389 Desulphurizing gases BRITISH GAS CORP 26 Nov 1976 [27 Nov 1975] 48815/75 Heading C1A [Also in Division C5] Hydrogenatable sulphur compounds are removed from a gas by subjecting it to hydrodesulphurization in presence of a catalyst consisting substantially of copper, zinc oxide and alumina, at not more than 375‹C. A suitable catalyst contains zinc oxide (30-50 weight per cent), copper (20-30 weight per cent, calc. as oxide) and gamma-alumina (balance). The gas may be one having methanation potential produced by non- catalytic hydrogenation and partial oxidation of fossil fuels. In Examples, thiophene and CoS are removed from a gas mixture containing H 2 , CO, CO 2 , CH 4  and N 2 .
Patent GB-1016398-A (GB)
Title: Improvements in or relating to rotary liquid meters
Inventor: STOW JOHN RONALD
IPC: G01F3/06
Filed: 1963-12-11
Abstract: 1,016,398. Rotary liquid meters. AVERYHARDOLL Ltd. Aug. 12, 1964 [Dec. 11, 1963], No. 48943/63. Heading FIF. A rotary positive displacement liquid meter used for calibrating and testing similar meters comprises a casing 10, Figs. 1 and 2 (not shown) housing a vaned liquid driven rotor and a gear casing 11 accommodating a continuously variable ratio change speed mechanism of known type which through an output gear meshing with a spur gear 24 drives an output shaft 12 haying a drum 29 secured thereto formed with a depending flange engraved around its periphery with a scale 32 having a number of equal markings, e.g., 10. Concentric with the drum 29, a ring 19 of transparent rigid material is fitted therearound between an upstanding rim 14 or the casing 11 and a registering mechanism 16, by bolts 18 fitted with spacers 17 to permit rotative adjustment of the ring 19 with respect to the drum. A cylindrical internal surface 34 of the ring 19 having the same diameter as the drum periphery is marked with a scale 35, divided, e.g., into tenths of a gallon, having a total extent equalling one division of the scale 32. In using the meter to check the accuracy of another meter, the ring 19 is first set with the zero mark of the scale 35 aligned with a marking on the scale 32. Liquid is then passed in series through the meter and the meter being checked. On the flow being stopped when the zero mark is again aligned with the same mark on the scale 32 an exact number of revolutions of the shaft 12 is known and hence the number of units of liquid passed through the meter. If the registering mechanism of the meter being tested does not record this number of units the error may be calculated and the meter adjusted. Alternatively the meter being tested may be shut off when its registering mechanism shows a predetermined quantity and any error noted by the lack of coincidence between the scales 32, 35 which error is then removed by adjustment of the meter under test.
Patent GB-1326228-A (GB)
Title: Electromagnetically controlled fuel injector
Inventor: MONPETIT A H C L
IPC: F02M47/02
Filed: 1970-10-15
Abstract: 1326228 I.C. engine fuel injectors SOC FRANCAISE D'ETUDES ET DE DEVELOPPEMENT DE L'INJECTION SOFREDI 15 Oct 1970 [24 Oct 1969] 49121/70 Heading F1B An electromagnetically-controlled fuel injector comprises an injector needle valve 3, Fig.1, which is raised from its seat by the pressure of fuel delivered through conduits 5, 1a, 1b, 2a, when a counter-pressure normally prevailing in a chamber 1d at the upper end of the valve 3 drops suddenly as a consequence of the adjustment of an electromagnetically-actuated control valve 13. With the valve 13 in the position shown pressurized fuel is delivered into the chamber 1d via passages 1c, 8d, 13d, 13b, 8e to maintain the valve 3 closed. Energization of electromagnet 9 raises the valve 13 until ridge 14a sealingly engages surface 13c, so that chamber 1d is instead communicated via passages 8e, 8b with a return passage leading to the fuel tank, thereby enabling the valve 3 to open. A non-return valve 22 and an associated enclosed space defined between members 12 and 6, form means for damping the opening of valve 3. A throttle 17 in the pressure fuel passage 8d, delays the rise in pressure downstream thereof after de-energization of the electromagnet to reduce leakage during the temporary communication between passages 8d, 8e, 8b during adjustment of valve 13, but also results in delaying the closure of valve 3. A mechanism may be arranged in a pressure fuel supply conduit at a position upstream of the injector valve and downstream of the branch leading to the control valve, to automatically close the conduit if the fuel supply rises above a predetermined limit, e.g. due to seizure of the injector valve. In Figs.2 and 3 (not shown), the control valve comprises a cylindrical slide valve having a reduced intermediate section to intercommunicate, in either of its end positions, a respective pair of three surrounding axiallyspaced annular chambers, the control valve being actuated directly by the electromagnet in Fig.2, (not shown), but in Fig.3 (not shown), it is hydraulically actuated via and electromagneticallyactuated diaphragm. Fig.4 (not shown), illustrates an arrangement in which the connection between the counter-pressure chamber (1d) and the return passage is controlled by valve (13), and the connection between chamber (1d) and the pressurized fuel supply is controlled by a spring- loaded ball valve (18) actuated by a rod extending from the valve (13). In Fig.5 (not shown), both connections are controlled by a spring-loaded ball valve (18) actuated by an electromagneticallyactuated plunger. In Fig.6, fuel for pressurizing the chamber 1d is supplied through an independent conduit 5a, and control valve 13 is supported by an apertured diaphragm 35 and is arranged to close either a return passage 8e or the fuel supply conduit 5a
Patent GB-1299071-A (GB)
Title: Displacement transducer
Inventor: WOLFENDALE PETER CALEB FREDERI
IPC: G01D5/243
Filed: 1968-12-22
Abstract: 1299071 Measuring displacement P C F WOLFENDALE 23 March 1970 [22 Dec 1968] 49180/68 Heading G4H In a digital displacement measuring system in which the position of a transducer 2 (Fig. 2) represents the required displacement, mechanical vibrations are induced in e.g. bar 9 by a first transducer 1, the phase of the vibrations detected by the transducer 2 representing the displacement. In the embodiment of Fig. 2 the phase of the signal from a third reference transducer 3 is compared with the phase of the signal applied to transducer 1 to induce the mechanical vibrations and the frequency f<SP>1</SP> adjusted until they are equal so that a complete number of wavelengths extends along the bar 9. The frequency f<SP>1</SP> is divided by 10<SP>3</SP> and compared with the frequency on conductor 18 obtained by mixing the frequency f1 with a frequency 1.001 f1 through oscillator 14. Oscillator 14 is then adjusted until the two signals are nearly identical. Zero crossings of the signals on conductor 18 start the count in a counter 20 and zero crossings of the signal picked up by transducer 2 and mixed with the output of oscillator 14 stop the count so that the count represents the position of transducer 2 within a cycle. In the embodiment of Fig. 3 (not shown) to ensure that the distance between the first and third transducers is the required number n of wavelengths a frequency divider 23 divides the cycles received by the transducer 3 by n, the divider 23 controlling a reversing switch 22 to reverse the phase of the signal from oscillator 21 applied to transducer 1. If the distance between transducers 1 and 3 is not n wavelengths, comparator 24 applies a signal to the oscillator to vary the frequency so that the phase of the signal from transducer 3 does not change before the divider 23 has reached 100. A coarse count is effected by counting the number of cycles between a pulse from the divider 23 and the transducer 2 receiving the reversed signal. The rod 9 is preferably of a magnetorestrictive material, the mechanical distortion caused by a travelling torsional wave generated by transducer 1 causing a small change in the magnetic flux which is sensed by transducers 2, 3. Transducer 1 comprises two coils (48, 49 Fig. 6, not shown) to which a current is applied simultaneously. Alternatively the rod may be replaced by a liquid or air path, acoustic transducers being used with the latter.
Patent GB-1318609-A (GB)
Title: Method of protecting metal parts
IPC: C23C10/56
Filed: 1970-10-16
Abstract: 1318609 Coating with metals DEUTSCHE EDELSTAHLWERKE AG 16 Oct 1970 [3 Nov 1969] 49270/70 Headings C7B and C7F A metal part of e.g. steel, Ni, Co or Ni-Co is coated with Cr and/or Si and a Pt group metal The coatings are completely diffused e.g. by heating in a protective atmosphere or vacuum at 900 to 1250 C. The coating may also contain Al. Either the Cr or Si or the Pt group metal may be applied first or both may be applied simultaneously. In an example the surface is wet blasted and degreased in a cyanide bath cathodically for 5 seconds and anodically for 15 seconds, pickled in H 2  SO 4  at a current density of 2 amps/dm<SP>2</SP> for 3 seconds, anodically and then for 2 seconds cathodically, and then immersed in caustic soda for 5 seconds cathodically and 15 seconds anodically. Pt is then electrolytically deposited from a bath consisting of (g/l):- 13 of hexachloroplatinic acid, 45 of triammonium phosphate, 240 of disodium hydrogen phosphate. The coating is then heated for 2 hours at 260 C and 3 hours at 450 C. The surface is then chromised in a pack at 1100 C comprising 12À5% Cr, 12À5% ferrochrome, 75% alumina and 0À2% chromium chloride. In another example Pd is electro-plated from a bath comprising (g/1.) 5 of Pd Cl 2 , 55 of (NH 4 ) 2 HPO 4 , 240 of Na 2 HPO 4  and 3À5 of benzoic acid. The coated surface is then heated at 260C for 2 hours and 450 C for 3 hours. The  Pd-surface is then chromized as in the previous example. The substrates may also be plated with RU 4  or Rh.
Patent GB-1135416-A (GB)
Title: Method of and device for analysing dispersive systems
Inventor: BINEK BEDRICH
IPC: G01J3/00
Filed: 1966-11-04
Abstract: 1,135,416. Counting particles. CESKOSLOVENSKA AKADEMIE VED. 4 Nov., 1966 [6 Nov., 1965], No. 49487/66. Heading G4D. [Also in Division G1] Analysis of the particle size distribution of an aero dispersive mixture, e.g. of liquid or solid particles dispersed in a gaseous medium, involves heating the mixture to a temperature at which the particles emit light, the light pulses emitted being detected photo-electrically and recorded. The mixture to be examined passes from tube 5 and is mixed with a gas from tube 6 in chamber 4 so as to separate the individual particles of the mixture and passed into the heating chamber 1 through tube 2. The mixture is heated by arc discharge, oxyhydrogen flame or by laser radiation. The light pulses emitted, the intensity of pulse being proportional to the mass of the particle emitting the pulse, are passed through optical systems 7, filters 8 to photomultipliers 9. After amplification at 10 the pulses are classified at 11 and counted at 12 according to amplitude. The distribution may be displayed on an oscilloscope 13. Various applications are described. The fractionating efficiency of a filtration material may be measured using a dispersion of sodium chloride aerosol in air. Filtration kinetics may be investigated. The retention of aerosol particles in the breathing tract can be determined by measurements during inhalation and exhalation of a suitable aerosol. The determination of various elements, e.g. strontium, therium in the atmosphere, is possible and of the rate of coagulation of an aerosol.
Patent GB-1130511-A (GB)
Title: Semiconductor devices and method of fabricating same
IPC: H01L21/22
Filed: 1965-11-22
Abstract: 1,130,511. Semi-conductor devices. RADIO CORPORATION OF AMERICA. 22 Nov., 1965 [7 Dec., 1964], No. 49589/65. Heading H1K. The minority carrier lifetime in a silicon or silicon-germanium body is decreased without unduly increasing the resistivity by first coating one face with nickel, cobalt or nickel-cobalt alloy and heating to diffuse in the coating material, removing any residue, and then coating with gold and heating to diffuse the gold through the nickel or cobalt diffused region. In one embodiment a controlled rectifier is made by first forming N-type regions at the opposite surfaces of a high-restivity P-type silicon wafer by epitaxial deposition or impurity diffusion. An annular region of P-type is then formed in the surface of one of the layers by diffusion of boron from the vapour phase through oxide masking formed by conventional methods. After removing the masking both faces of the wafer are coated with nickel, cobalt or alloys thereof and this is then diffused in by heating in a non- oxidizing ambient. Surface residues of the metals are next removed by treatment with a boiling solution of a metal chloride in hydrochloric acid and the face not diffused with boron coated with gold by evaporation. This is diffused throughout the entire wafer by heating at 860-900‹ C. in a non-oxidizing atmosphere and then cooling slowly. Nickel electrodes are then plated on the annular P zone and the N-type regions. In an otherwise similar embodiment the starting wafer is of a silicon rich germaniumsilicon alloy and the N regions are formed by diffusion of arsenic or phosphorus. A device with reversed zone conductivity types can be similarly formed from an N-type silicon wafer using boron and phosphorus respectively in the first and second diffusion steps.
Patent GB-1172745-A (GB)
Title: A Process for the Production of Aluminium Alkyls.
IPC: C07F5/06
Filed: 1967-11-01
Abstract: 1,172,745. Aluminium trialkyls. ETHYL CORP. 1 Nov., 1967 [1 Nov., 1966], No. 49604/67. Heading C2J. Aluminium trialkyls are produced by reacting aluminium, hydrogen and an olefin in the presence of at least one organo compound of a metal of Groups III B , IV B  and V B  (Deming) as catalyst. Specified metals are Ti, Nb, Zr. The catalyst may be an alkoxide, e.g. a C 2 - C 20 , preferably C 2 -C 6  tetralkoxide: the use of Ti(Oi-Pr) 4  to prepare AlEt 3  or Al(i-Bu) 3  and of Ti(OEt) 4  or TiEt(OEt) 3  to prepare AlEt 3  are mentioned. 0À01-5%, preferably 0À04- 2%, by weight (based an weight of aluminium) of a lower alkoxide of Ti, Nb or Zr may be used. Catalysts may be added directly or may be generated in situ, and may be used in conjunction with known aluminium activation techniques.
Patent GB-1244003-A (GB)
Title: Strain-gaged treadle scales
IPC: G01G19/02
Filed: 1968-10-24
Abstract: 1, 244, 03. Measuring weight electrically. BLH ELECTRONICS Inc. Oct. 24, 1968 [Nov. 13 1967], No.50600/68. Heading G1N. Weighing apparatus, e.g. for measuring the load on vehicle wheels, includes a loading platform 15 suspended in a support 17 by members 19, 20, Fig. 3 (not shown), the portion 19a of member 19 being secured by bolts to the platform surface 15s and the portion 19b being secured by bolts to the support 17. The portion 19c of member 19 which interconnects the portion 19a, 19b is provided with a number of slots 1.9d-19g which divide portion 19c into a number of shearresponsive portions 19h-19j and which each have shear-responsive strain gauges 23a-23f banded therein, the strain gauges 23a, 23c, 23f being responsive to compression effects and the strain gauges 23b, 23d, 23e responsive to tension effects. These gauges may be connected in a bridge circuit to measure only vertical loading forces. Strain gauges 31, 32 are provided to indicate any bending effect of the load and to indicate when the load is situated centrally on the platform. The slots 19d-19g may be hermetically sealed by seals (36, 37), Fig. 11 (not shown), and support irregularities may be evened out by mounting the members 19, 20 on an intermediate support (17') which is mounted on the main support (17<11>) through a pressure pad (40), the space 21 between the platform and the portion 19a being filled with an elastomeric material (37), and the space (38) being portion 19b and the intermediate support (17<1>) with elastomeric material (39), Fig. 12 (not shown). In an alternative, Figs. 13, 14 (not shown), the apparatus is portable and the platform (42) is suspended in the support (43) by a number of pins, (44, 45) which each have a portion of reduced cross-section for mounting strain gauges (44a, 44b, 45a, 45b).
Patent GB-1220270-A (GB)
Title: An electrical circuit arrangement for controlling the quantity of liquid in a tank
IPC: G05D9/12
Filed: 1968-10-25
Abstract: 1,220,270. Automatic liquid level control. INDUSTRIE A. ZANUSSI S.p.A. Oct.25, 1968 [Oct.28, 1967j, No.50724/68. Heading G3R. In a liquid level control system, changes in liquid level cause a magnetic core to move relative to vertically spaced coils alternatively connected to an oscillator which changes state according to the level to correct the level and change over the connection of the coils. In Fig. 1, when a float 4 of magnetic material is in the position shown within a tube 3 in a washing machine 2, a coil 6 is connected to form part of a transistor oscillatoramplifier 7 so that the latter oscillates and energizes a relay 8 as shown. Under these conditions closed contacts 17 open a solenoid valve 28 to permit water to flow into the washing machine. When the level rises so that float 4 reaches coil 6 the change in inductance is such that oscillation ceases and relay 8 is de-energized to close valve 28 and prevent further addition of water. Closed contacts 15 permit energization of a heater 21 for washing. Contacts 13 & 14 also change over to substitute coil 5 for coil 6 so that float 4 must fall below coil 5, e. g. due to water absorption in the washing, before relay 8 is re-energized to cause more water to be added. Switches 23 are timeoperated.
Patent GB-1077517-A (GB)
Title: Screw rotor compressor
IPC: F04C23/00
Filed: 1964-12-14
Abstract: 1, 077, 517. Rotary compressors. SVENSKA ROTOR MASKINER A. B. Dec. 14, 1964 [Dec. 23, 1963], No.50768/64. Heading F1F. In a rotary compressor of the meshing-screw type oil for cooling, sealing and lubrication purposes is injected through passages or channels 54 in a casing 10 into spaces between a male rotor 28 and a female rotor 30, the number of the lobes or lands 42 on the female rotor being greater than that of the lobes or lands 38 on the male rotor by at least two while the number of lobes on the male rotor is at least three and the number of lobes on the female rotor is not more than twice that of the lobes on the male rotor, whereby a driving shaft (36), Fig. 3 (not shown), attached to the female rotor can be connected directly to a prime mover e. g. a Diesel engine, without gearing therebetween and the output of the compressor can be varied by appropriate changes in the speed of said shaft above an optimum value with regard to overall efficiency without appreciably affecting the latter. Substantially the whole of each of the lobes 38 lie outside of the corresponding pitch circle 50 whereas substantially the whole of each of the lobes 42 lies within the corresponding pitch circle 48. According to the desired optimum speed the numbers of lobes on the rotors may be four and six (as shown), four and seven, Fig. 6 (not shown), or three and five, Fig. 7 (not shown). The compressor may include two stages in series, Fig. 8 (not shown), the male rotor (98) in the high-pressure stage being connected to the female rotor (92) in the low-pressure stage by a torsion rod (96) while the other rotors (90, 100) are independent of each other.
Patent GB-1082550-A (GB)
Title: Improvements in the production of printing plates
IPC: B41C3/00
Filed: 1964-12-14
Abstract: 1,082,550. Laminates. W. R. GRACE & CO. Dec. 14, 1964 [Dec. 16, 1963], No. 50862/64. Heading B5N. [Also in Division B6] A matrix for the production of duplicate printing plates is made by pressing a heated metallic printing former against a blank comprising a thermoplastic film 1 which takes up an intaglio impression of the former, the film being bonded to a fibrous base impregnated with thermoset resin, and heating to cure the resin, the film being of material, e.g. nylon, having a melting point above 200 C. or of material of melting point raised above 200 C. by the heating, e.g. being of polythene, polypropylene or other polyolefin containing a filler such as calcium silicate and a cross-linking agent such as dicumyl peroxide. The fibrous base may comprise wood flour and paper fibres and the thermoset resin impregnant therefor may be a phenol- or resorcinol-formaldehyde resin or preferably a phenol-formaldehyde butadiene-acrylonitrile 9: 1 mixture.
Patent GB-1091098-A (GB)
Title: Improvements in articles of footwear comprising multi-layer moulded-on soles
IPC: A43B9/20
Filed: 1965-12-06
Abstract: 1,091,098. Boots &c. DESMA-WERKE G.m.b.H. Dec. 6, 1965 [Dec. 12, 1964], No. 51604/65. Heading A3B. A shoe of -the type having a multilayered sole 11 of rubber or synthetic plastics material which is injection moulded on to the upper 10 in two stages has an intermediate sole 12 of relatively hard material which is resistant to mechanical stresses and an outer sole 13 of relatively soft abrasion-resistant material. The intermediate sole 12 is formed with a welt 12a and is preferably a different colour to the outer sole 13.