baber/WOPTO huggingface dataset:
Patent GB-912206-A (GB)
Title: Fuel injection system for internal combustion engines
IPC: F02M57/02
Filed: 1958-12-09
Abstract: 912,206. Fuel injectors; valves. CLARKE, F. A., and BROOKE, T. Dec. 7, 1959 [Dec. 9, 1958], No. 39734/58. Classes 7(3) and 7(6) [Also in Group XXVIII] The stem of an inlet valve 1 is surrounded by a fuel injection pump chamber 10 from which fuel is injected through a passage 20 and a discharge valve space 21 when the inlet valve opens. The pump space 10 is formed in a member 50 integral with or attached to the valve guide 2 and the pump plunger 51 is attached to the valve stem 1. When valve 1 opens, the valve recess 21 connects the passage 20 to the intake pipe for injection thereinto. A spring- loaded piston 61 yields at an adjustable predetermined pressure in the pump space to absorb a portion of the pump delivery and reduce the amount injected. The fuel supplied to the pump space 10 is metered by a piston 75, Fig. 3, with grooves 78 of varying size, the fuel entering at 71 and flowing through the grooves 78 to the pipe 74 leading to the pump space 10. The piston is operated by intake pipe suction, transmitted through pipe 80, so that as the suction increases the piston moves to the right to bring the smaller grooves opposite port 71 and reduce the fuel supply to the pump. In a modification the pump cylinder is carried on the valve stem 1 and the pump piston is formed by the valve guide.
Patent GB-1387657-A (GB)
Title: Hydroformylation process
IPC: C07C29/16
Filed: 1972-08-25
Abstract: 1387657 Oxo process DAVY POWERGAS Ltd 4 Sept 1973 [25 Aug 1972] 39778/72 Heading C2C A process for hydroformylation of an olefin comprises catalytically reacting the olefin with hydrogen and carbon monoxide in a primary reaction zone so that an aldehyde or aldehyde and alcohol is produced and some olefin remains unconverted, withdrawing aldehyde or aldehyde and alcohol product as vapour along with gases including unconverted olefin from the primary reaction zone, separating aldehyde or aldehyde and alcohol from the gases thus withdrawn, recycling part of the separated gases including unconverted olefin to a primary reaction zone and hydroformylating part of the unconverted olefin in a secondary reaction zone and separating further aldehyde or aldehyde and alcohol product from the secondary reaction zone without further recycling of the remaining separated gases. Preferably, the residence time of the reactants and/or ratio of catalyst to reactants is higher in the secondary reaction zone than in the primary reaction zone There may be a plurality of primary and/or secondary reaction zones. The secondary reaction zone may be at a higher pressure. Means may be provided for a partial exchange of liquid catalyst material containing the product in solution from the secondary reaction zone and liquid catalyst material from the primary reaction zone.
Patent GB-1591338-A (GB)
Title: Camera focusing
IPC: G02B7/09
Filed: 1977-09-26
Abstract: The automatic range setting generates a signal whose duration depends on the range of the subject to be photographed. During the entire duration of the range signal ( tau ), a first pulse train is generated and fed to a counter (41). A second pulse train is fed to the same counter (41) as a function of the setting movement of the focusing member (14) or of its drive (32). Given agreement between the number of pulses of the two pulse trains, the focusing member (14) is stopped. For the purpose of linearisation of the dependence between the subject range and the adjustment path of the focusing member, one of the two pulse trains has different pulse intervals. In a still camera, the shutter can be released given the presence of a signal of sharp focusing of the subject. In a movie camera, adjustment of the sharp focusing is performed during the filming operation. <IMAGE>
Patent GB-931986-A (GB)
Title: Folding tower
IPC: E04H12/18
Filed: 1959-11-26
Abstract: 931,986. Tower scaffolds. S. G. DEHN. (up-right Inc.). Nov. 26, 1959, No.40288/59. Class 20 (2). A scaffold tower section comprises three or more vertical legs 11 connected by crossbeams 12 composed of tubes 31, 32 connected together by a link 35 enclosed in a slidable sleeve 37, the legs 11 having spigot and socket connection with the legs of other tower sections. The tower sections can be collapsed by folding the crossbeams 12 which, for erecting the tower, are unfolded and the sleeve 37 slid over the link 35 and secured by a bayonet fastening 38, 39, the yielding of the link connection under compression and its binding in the sleeve also helping to secure this connection, the link pivots may be offset or openings may be provided in the sleeve to receive corners on the link to increase the binding effect. The section comprises guy wires 16 and supports at its top a platform with a central opening providing access to a ladder extending down to the platform of the next section. The tower rests on a base frame having legs adjustable for height.
Patent GB-1535500-A (GB)
Title: Multichannel endoscope
IPC: A61B1/12
Filed: 1977-09-30
Abstract: 1535500 Endoscopes UNIVERSITY OF SOUTHERN CALIFORNIA 30 Sept 1977 [30 Sept 1976] 40690/77 Heading A5R A multichannel endoscope has a suction tube 42 slidably and removed received in one channel from which it projects at the viewing end for connection to a vacuum source, and optical fibre and illumination devices in other channels. Further channels 20, 37, 38 for irrigation or laser beam transmission purposes or instruments may be provided.
Patent GB-897086-A (GB)
Title: A screw propeller marine propulsion and steering device
IPC: B63H20/10
Filed: 1958-12-17
Abstract: 897,086. Screw propulsion and steering units. LEIPERT, E. Dec. 17, 1958 [Jan. 20, 1958], No. 40714/58. Class 114. A boat propulsion device, of which one embodiment is shown in Figs. 1 and 2 and another in Fig. 4, consists of an engine section comprising one engine, or two engines (41 in Figs. 1 and 2; 76 in Fig. 4), rigidly mounted in the boat on each side of a housing 14 in a slotlike cut-away in the stern of the hull 10 or on the transom 12, a propeller drive section swingably carried by the engine section and supported in the housing 14 or on the outer face of the transom, and means to rotate the propeller drive section independently of the engine section. In the first embodiment, forks 44 (Fig. 2) are shifted to cause gears 40 to engage engine driven gears 43 (or friction clutches or hydraulic couplings are employed) so that the engine drives a bevel gear 35 in the propeller drive gear housing 19 which is swingably mounted, trunnion fashion, at 32 in the housing 14. Gear 35 meshes with gear 25 on the vertical shaft 24 of the drive to the propeller 21, which is mounted in a housing 20 having an extension 18a rotatably surrounding an extension 18 of the housing 19. A spur gear 45 secured to the extension 18a is rotated by a gear 48 by means of a steering cable 56 which is wound round a pulley 52 secured on the shaft 50 of the gear 48. The cable 56 is operated by the boat's steering wheel, which also actuates a pointer to indicate the position of the propeller. The housing 20 may be rotated through 360 degrees. In the event of a cable failure the housing 20 may be rotated by means of flats 58 on the shaft 50. Normally the propeller drive shaft 24 is held vertical by contacts at the abutment 46 on the bottom member 47 and at the shoulder 68 on a dwell 67 of the housing 19, the shoulder being engaged by a spring loaded plunger 61 which engages a shoulder 69 when the propeller drive assembly is swung upwardly to its raised position. When the housing 20 encounters a submerged object the impact causes it to overcome the plunger spring 63 and to swing upwardly, upward movement of the plunger 61 causing arms 70 to actuate cut-off switches 71 which stops the engines. The propeller section may be lifted manually by means of a cable 73 attached to a handle 72. When the housing 19 is swung upwardly it takes the gear 45 out of engagement with the gear 48 but carries with it an anti-cavitation plate 95. In Fig. 4 the propeller housing is rotated directly by the steering cable 56 being wound on a pulley 80 secured on the extension 18a a spring 82 permitting the housing to be swung upwardly. Should an underwater object be struck, the housing 20 moves to pull a member 86 thereon free of a resilient member 85 and a lip 88 on the gear housing trips an arm 89 of a switch mechanism to stop the engines. The propeller may be raised manually by inserting a lever in a bore 91.
Patent GB-1242024-A (GB)
Title: Process of polymerisation in an electric field and new products obtained thereby
Inventor: BRENDLE MARCEL
IPC: C08G61/08
Filed: 1968-08-27
Abstract: 1,242,024. Polymerizing monomers in an electric field. CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE. 27 Aug., 1968 [31 Aug., 1967; 11 June, 1968], No. 40895/68. Headings C3P and C3R. Monomers are polymerized in an electric field established between electrodes immersed in liquid monomer, the surfaces of the electrodes being constituted by substances capable of forming # complexes with ethylenic or aromatic compounds. The electrodes may be formed from the substances or the substance may be coated on conductive supports. Suitable substances mentioned are sodium, potassium, other alkali metals, alkaline earth metals, nickel, copper, titanium, iron, brass and copper oxide. Apparatus is described in which the polymerization may be carried out, in some instances including arrangements for coating electrodes with sodium or potassium and for purifying the monomer. The polymerizations of toluene, tetrahydrofuran, styrene, benzene and pyridine are described.
Patent GB-955228-A (GB)
Title: Process for preparing acrylic fibres having voids therein
IPC: D01D5/247
Filed: 1962-10-30
Abstract: 955,228. Voided acrylic fibres. TOYO RAYON KABUSHIKI KAISHA. Oct. 30, 1962 [Nov. 8, 1961], No. 41079/62. Drawings to Specification. Heading B5B. Acrylic fibres having voids therein are made by mixing an isocyanate with a wet-spinning solution of an acrylic polymer containing substantially no water, spinning the mixture into a coagulating bath comprising a mixture of water and an organic solvent, and drawing the spun filaments, the concentration of polymer in the spinning solution being from 10-27% by weight (preferably 15-20%) and the amount of isocyanate being from 0.5 to 100% of the weight of polymer in the spinning solution. Acrylic polymers are defined as containing at least 85 mol. per cent acrylnitrile units. Specified isocyanates include tolylene di-isocyanate, phenyl isocyanate, ethyl isocyanate, hexamethylene di-isocyanate, diphenylmethane diisocyanate, naphthylene di-isocyanate, nitrodiphenyl diisocyanate and diphenylsulphondiisocyanate which may be added in a proportion of 10-50% by weight based on the polymer in the spinning solution. Specified spinning solvents include dimethylformamide, diethyl formamide, dimethyl acetamide, dithyl acetamide, ethylene carbonate, dimethyl sulphoxide, γ- butyrolactone and acetone. Organic solvents suitable for the coagulating bath, which preferably contains 30-70% by weight of water and 70-30% by weight of the organic solvent, include dimethyl formamide, diethyl formamide, dimethyl acetamide, diethyl acetamide, ethylene carbonate, γ-butyrolactone, tetrahydrofuran, acetone, dioxane, methanol, ethanol, butanol, propanol and thioglycolic acid. Bath temperatures of 5-80 C. may be used. The spun filaments may be drawn 2-7 times their original length in known manner, and heat-relaxed 10-30% in steam.
Patent GB-1164311-A (GB)
Title: Housing for an Electron Discharge Device.
IPC: H01F7/02
Filed: 1966-09-15
Abstract: 1,164,311. Permanent magnets; magnetrons. GENERAL ELECTRIC CO. 15 Sept., 1966 [6 Dec., 1965], No. 41246/66. Headings H1D and H 1P. A housing for an electron discharge device comprises a hollow chamber containing, and forming a low reluctance return path for, a pair of magnets defining an air gap, each of the magnets comprising at least two permanent magnet portions having different magnetic characteristics arranged so that the flux density in the gap is substantially the same as if all the parts of the magnets were of the same material as the portion adjacent to the air gap. Since high coercivity materials are expensive and/or of high density the use of such materials is according to the invention restricted to the portion of the magnet adjacent to the air gap where the demagnetizing force H is greatest while the remainder of the magnet comprises a cheaper and/or less dense material of lower coercivity but higher induction B. The resultant magnet produces the same flux density in the gap provided that the change in materials is arranged to occur at a point along the length of the magnet where their respective B and H values are equal. As shown, Fig. 1, a voltage-tunable magnetron 16 is mounted in an air gap 13 between two magnets 11, 12 arranged in a soft iron case 14, 15. Each magnet comprises a gap-defining portion of platinum-cobalt (77: 23) alloy which has a high coercivity and a second portion of Alnico- 9 which has a lower coercivity. The output of the magnetron is coupled to the external circuit by means of a co-axial connector (25), Fig. 3 (not shown), and impedance matching may be obtained by changing the material or by varying the length of the dielectric spacer (38) of this connector. The axial position of the dielectric spacer may also be adjusted to improve the impedance match.
Patent GB-932777-A (GB)
Title: Device for stacking flat articles such as letters and the like
IPC: B65H29/42
Filed: 1960-12-01
Abstract: 932,777. Delivering sheets. SOC. D'ETUDE ET DE CONSTRUCTION D'APPAREILS DE PRECISION. Dec. 1, 1960 [April 8, 1960], No. 41276/60. Class 100 (1). [Also in Group XXX] Letters are delivered in single file from a cancelling or other machine along a guideway 2 by an endless belt conveyer 3 until they abut against a stop 11 carried by a stationary structure 12. A vertical guide wall 8 is carried by the structure 12 and co-operates with a rotatable, vertically mounted disc 9 to form a space in which a small stack 40 of letters is built up as each letter abuts against the stop 11. The disc 9 is formed with a deep cut-out in its periphery and one side of the cut-out is bent out of the plane of the disc to provide a vane 18 of substantially helical form. The disc is mounted on a continuously driven shaft 14 journalled in bearings 15, 16 on the structure 12 and at each rotation of the disc the vane 18 engages the small stack 40 abutting against the stop 11 and transfers it through the cut-out in the disc 9 to the other side of the disc where it is added to a main stack 28 on a table 21. The table 21 has one end near the conveyer 3 and in substantially the same plane as the conveyer and slopes downwards away therefrom. The upper runs of endless chains 23, 24, 25 project through the table 21 and a plate 29 mounted on a sleeve 33 slidable on a rod 34 is connected to the chain 24 for movement therewith. The leading letter 1a of the main stack 28 abuts against the plate 29 and the lower edges of the letters in the stack rest on the chains 23-25. A feeler 46 is pivoted to the plate 9 and its free end is spring-biased in the direction of the stack 28 which it engages. The shaft 14 is hollow and a rod 45 is slidable therein, which rod contacts at one end the feeler 46 and at the other a switch 44. When the number of letters in the stack 28 is so great as to urge the feeler 46 back towards the disc 9 by a predetermined amount, the switch 44 is closed by the rod 45. The switch 44 starts an electric motor which drives the chains 23-25 in the direction of the arrow, whereby the plate 29 is moved away from the disc 9 until pressure by the stack 28 upon the feeler 46 is relaxed and the switch 44 is again opened. When the plate 29 reaches the lower end of the table 21 the stack 28 is removed from the table and the plate is moved back to near the disc 9 by hand.
Patent GB-1346878-A (GB)
Title: Rollmill control system
IPC: B21B37/64
Filed: 1972-09-06
Abstract: 1346878 Electric correspondence control systems WEAN UNITED Inc 6 Sept 1972 [7 Oct 1971] 41398/72 Heading G1N The roll gap of a rolling mill is set up to produce a desired strip thickness based on a noload roll gap and an estimated mill stretch, and the actual mill stretch is calculated from the roll pressure, the difference between the estimated and calculated stretch being used to change the roll gap in order to produce the desired strip thickness. As shown, each of two housings 9 supports work rolls 11, 12, back-up rolls 13, 14 and chock assemblies 18, 19, the upper chock assemblies 18 being set by screw 21 adjustable by motor 23, and the lower chock assembly 19 being adjustable by a hydraulic piston cylinder arrangement 27 controlled by a servovalve 29. A control unit 53 is fed with the known parameters of the rolling mill and the product to be rolled and develops a first signal representing the initial roll gap, which is fed via position control 24 to motor 23, and a second signal representing the predicted mill stretch. During rolling, a load cell 42 associated with the upper back-up chock 18 measures the rolling load and its output P is combined at 49 with a signal M m  representing the known modulus of the mill to produce a signal P/M m  representing the actual mill stretch. This is compared at 32 with the predicted mill stretch signal from unit 53 to produce a signal #P/M m  representing the change in mill stretch, which is used to cause servovalve 29 to adjust the roll gap accordingly, via the piston cylinder arrangement 27. A feedback loop for the adjustment of the lower rolls 12, 14 is provided by a displacement transducer 28.
Patent GB-1477083-A (GB)
Title: Insulated gate field effect transistors
IPC: H01L23/532
Filed: 1975-10-10
Abstract: 1477083 Semiconductor devices INTERNATIONAL BUSINESS MACHINES CORP 10 Oct 1975 [3 Dec 1974] 41557/75 Heading H1K An IGFET has epitaxial N (or P)-type drain and source regions which project above a P (or N)-type silicon substrate surface, and a gate consisting of a conductive layer on an insulating layer on the substrate surface between the source and drain regions. The process for fabricating the device comprises the following steps: a first masking process in which a thermal silicon dioxide layer formed on a silicon wafer 2, is photolithographically etched to form layers 8, 10 and 12; a silicon layer is formed epitaxially above the exposed silicon and as polycrystalline layers 7, 9 and 11 on the silicon dioxide layers 12, 10 and 8; the silicon layer is covered with a silicon nitride layer 16 prior to a second masking process in which regions around layers 9 and 10 are etched out; shallow N<SP>+</SP> (or P<SP>+</SP>) layers 22 and 24 are formed by ion implantation; a third masking process in which a moat region is etched down to the silicon surface to isolate layers 13, 9, 15 from the layer 7, 11; a fourth masking process in which contact areas are defined on layers 9, 13, 15 prior to removal of the nitride layer from all other surfaces; a silicon dioxide layer 34 is grown over all exposed silicon surfaces; the remaining nitride layers are etched away prior to depositing an aluminium layer over all exposed surfaces; finally, a fifth masking process is used to define aluminium layers 44, 36 and 38 forming the contacts for source 13, gate 9, drain 15, and the field shield 7, 11. In an alternative process, an IGFET, Fig. 2p (not shown) is formed, having the source and drain contacts also deposited on the surface of a silicon dioxide field shield.
Patent GB-1122219-A (GB)
Title: Fluid flow control valves
IPC: F16K11/07
Filed: 1965-09-30
Abstract: 1,122,219. Valves. COMMERCIAL SHEARING & STAMPING CO. 30 Sept., 1965 [26 April, 1965], No. 41627/65. Heading F2V. A valve comprises a spool 12 slidable in a bore 11 intersected by an outlet port 13, inlet ports 14, 15, a port 17 communicating with a pressure fluid supply port 18, work ports 19, 20 and exhaust ports 23, 24. The work ports communicate via relief valves 29, 30 with a passage 26 that intersects a through passage 25 arranged perpendicular to bore 11 and communicating with an exhaust zone. Several such valves may be arranged side by side, in which case one valve (Fig. 2, not shown) may have a passage (40) corresponding to passage 26 but not intersecting exhaust passage (25a), thereby allowing fluid from one side of a controlled motor to be passed to the other side. In Fig. 3 (not shown), the relief valves comprise members (51, 52) cooperating with seats (54, 55), the latter being provided internally with check valves (56, 57) to allow flow to the work chambers (19b, 20b) during exhaust thereof to prevent cavitation.
Patent GB-1147294-A (GB)
Title: Improvements in or relating to the checking of spur gears or the like on a production line
IPC: G01B5/20
Filed: 1967-09-13
Abstract: 1,147,294. Gear gauging apparatus. CARL HURTH MASCHINEN-UND ZAHNRADFABRIK. Sept.13, 1967 [Oct.26, 1966], No.41826/67; Heading G1M. Apparatus for checking the pitch circle of spur gears comprises a master gear 10 adapted to mesh with the gear 2a being checked, the gear 2a being supported without a centre in the teeth of guide gears 7, 8. The gears to be checked are transferred along a conveyer belt 1 between guide bars 4 to a gauging station 6. On reaching the station 6, the guide gear 7 acts as retaining gear for the gear 2a whilst the gear 8 is driven by an electric motor. A switch 13 operates a jacking device (not shown) to lift the gear 2a away from the conveyer and an arm 9 on which the gears 7, 8 are mounted is pivoted through 45 degrees in a clockwise direction. The master gear 10, mounted on a spring-biased arm 11, is pivoted into engagement with the gear 2a. As the gears rotate, any change in the distance between the axes of the gears 7, 8, 2a, 10 is indicated or recorded by a sensing device 23. The switch 13 and the gear 10 are then pivoted away from the gear 2a, the jacking device lowers the gear back to the conveyer and the arm 9 is pivoted through a further 45 degrees in a clockwise direction. The direction of rotation of the gear 8 is reversed and when the gear 2a passes a switch 26, the arm 9 and the switch 13 are pivoted back to their initial positions. A switch 27 then allows another gear for checking to be released and the direction of rotation of the gear 8 is reversed to its original direction.
Patent GB-1064254-A (GB)
Title: Improvements in or relating toapparatus for cleaning machine parts
IPC: C23G3/00
Filed: 1963-10-23
Abstract: <PICT:1064254/C6-C7/1> Automated apparatus for cleaning internal cavities and passages in machine parts, such as motor engine blocks and crank-shafts, by sequential treatment at several stations, comprises a conveyer such as a hydraulic walking beam type which transfers the parts successively to each station, a fixing or hold down beam at each station which positions the parts and indexes the cavities and passages in position for spraying with at least one jet nozzle at one or more of the stations, the nozzles being movable from a retracted position away from the parts during the transfer and indexing, to the spraying position.  The cleaning may be effected with liquids such as water or air and the apparatus is operated in timed sequence by means of limit switches.  As shown in Fig. 1 crank-shafts 25 are transferred to washing stations 21, 22, 23 by conveyer (30) Fig. 2 (not shown), the hold down beam 40, operated by cylinder 55 and rod 58, descends and indexes the crank-shafts. Manifold plates 81 actuated by cylinder 90 and rod 92 then descend to bring the jets 80 into engagement with the cavities and passages in the crank-shafts. The manifold plates are then retracted after a predetermined washing interval, the beam 40 is also retracted and the conveyer then picks up each crank-shaft and moves it to the next station.  The final indexing of the crank-shafts in position for spraying with the jets is effected by means of locators (150) and (151) Fig. 9 (not shown) suspended from and carried by the manifold plate 81.  As the plate descends the locators, which have a plastic coating on the contacting edges, locate the crank-shafts and correct any slight misalignment.