baber/WOPTO huggingface dataset:
Patent GB-895527-A (GB)
Title: Improvements in or relating to photograph frames and analogous articles
Inventor: BECK ROBERT BLACKBURN
IPC: A47G1/14
Filed: 1959-11-24
Abstract: 895,527. Struts for picture frames. MANDER Ltd., ELISHA. Feb. 24, 1961 [Nov. 24, 1959], No. 39777/59. Class 52(3) [Also in Group XXV] The hinge for a strut in an easel type photograph frame or the like comprises a plate 1 fixed to the article 7 having a groove 3 extending along one edge and a second plate 2 fixed near the end of the strut 13 and having a longitudinal rib or bead 12 which fits and pivots in the groove 3 so that members 1, 2 are detachably hinged together. The plate 1 is fixed to the member 7 by a headed pin or rivet 8 passing through one of the eccentric holes 4, 5, 6, which are located at different distances from the centre of the plate, so that the plate 1 may be conveniently rotated through 90 degrees if the frame &c. is to be used in a correspondingly rotated position. The groove 3 and rib 12 are tapered so that the hinge is only assembled from one direction.
Patent GB-1017237-A (GB)
Title: Improvements relating to nuclear reactor fuelling arrangements
Inventor: HOWARD JOHN ALBAN
IPC: G21C19/10
Filed: 1961-11-07
Abstract: 1,017,237. Fuelling reactors. ENGLISH ELECTRIC CO. Ltd. Nov. 7, 1962 [Nov. 7, 1961], No. 39830/61. Heading G6C. An arrangement for loading a string of fuel elements into a vertical fuel channel of a reactor wherein two or more support wires are secured to the string so as to hold the elements together in a vertical position. As shown in Figs. 1, 2, a string 10 of fuel elements comprises an upper spacer 11, seven fuel elements 12 and a wiresecuring mechanism 13. The string is supported in the channel by a member 20 whereby each element 12 rests on the element beneath it, each element having a thermocouple (not shown) from which an electric lead 15 extends to a socket 16 secured to the spacer 11. As described, the member 20 is a plain independent fuel element. The string 10 is lowered into the channel by four support wires 17 having an outer cover 18 and connected at their upper ends to an adaptor 19 having a head 19a for engagement by a grab. The mechanism 13 includes a housing 24 screwed into the lowermost element 12 and having four seatings 27 for engagement by balls 22 attached to the lower ends of wires 17. A plunger 28 having a stop flange 29a is biased by a spring 30 so as to hold the balls 22 in the seatings 27. When the plunger nose 28a engages the member 20 at the end of the lowering operation the plunger moves upwards relatively to the housing 24 so as to release the balls and the adaptor 19 and wires 17 may be withdrawn from the channel. In a modification, Fig. 4, the upper ends of the four support wires 45 are anchored to a block 47 to which thermocouple leads 50 are also fixed. The block 47 is supported by a chain 48 whereby the fuel element string may be lowered into the channel.
Patent GB-1421671-A (GB)
Title: Anthraquinone dyestuffs of sparing aqueous solutbility
IPC: C09B1/58
Filed: 1973-08-22
Abstract: 1421671 Anthraquinone dyestuffs of sparing aqueous solubility CIBA-GEIGY AG 22 Aug 1973 [22 Aug 1972] 39842/73 Heading C4P Anthraquinone dyestuffs of sparing aqueous solubility have the formula wherein A is an anthraquinone dyestuff radical, Y is an alkylene or aralkylene bridge which is bonded to the anthraquinone nucleus directly or through a bridge member and which is optionally substituted by a hydroxyl group and/or is interrupted by an oxygen atom, and R is an opt. subs. aliphatic, cycloaliphatic or aromatic radical. Among the methods of manufacture are: (a) reaction of A-Y-OH with Hal-COSR, (b) if Y is bonded to A through an -NH- bridge and represents aralkylene, an anthraquinone compound A-V, in which V represents a replaceable substituent, especially halogen, is reacted with H-Y-O-COSR, (c) if Y is bonded to the radical A directly through an arylene bridge in the 2-position, said radical A carrying in the 6-position a sulpho group, this sulpho group is split off by reduction, or (d) if Y is bonded directly to A through an arylene bridge, a compound H-Y-O-COSR is reacted under oxidizing conditions with an anthraquinoneimine which contains a hydrogen in the 2-position. Typical dyes have the formulµ The dyes are suitable for dyeing hydrophobic organic fibres, such as aromatic polyesters or cellulose acetates. They may also be used on synthetic polyamides, and polyolefines, and for spin dyeing polyamides, as well as for colouring or pigmenting lacquers, oils and waxes.
Patent GB-1299468-A (GB)
Title: Method of manufacturing a semiconductor device
Inventor: MATSUI T
IPC: C30B33/10
Filed: 1970-08-19
Abstract: 1299468 Making semi-conductor devices TOKYO SHIBAURA ELECTRIC CO Ltd 19 Aug 1970 [21 Aug 1969] 39915/70 Heading H1K [Also in Division B6] A U-shaped trough is formed in the (001)major face of an A<SP>III</SP>B<SP>V</SP> body by exposing a narrow strip of the surface having a [110], [100], or [010] orientation and etching with a reaction-limited etchment. When the orientation of the strip is [110] it is necessary to ensure that the body shows a "B" plane perpendicular to the [111] axis. Semi-conductor material grown epitaxially in the trough will have a flat surface so that contacts may be formed by etching a deposited layer without any treatment of the body surface. In a particular device an N-type gallium arsenide layer is grown epitaxially on the (001) face of a substrate of intrinsic gallium arsenide. The layer is then coated with pyrolytically deposited silica and two parallel strips of this material removed parallel to the [110] axis. The N-type material is etched-out down to the substrate and the troughs refilled with sulphur doped N+ gallium arsenide to which contacts are applied to complete a Gunn diode. The composition and characteristics of particular peroxide (acid and alkaline), bromine, and aqua regia etchants are given. (These etchants include both reaction-limited and diffusionlimited cases.) Gallium phosphide is also a suitable semi-conductor. It appears that any {001} plane may be utilized and U-shaped troughs then produced by selecting the appropriate orientations for the exposed strips of surface.
Patent GB-1386481-A (GB)
Title: Low noise ducted fan assembly
IPC: F02K3/06
Filed: 1972-08-29
Abstract: 1386481 Ducted fan engines UNITED AIRCRAFT CORP 29 Aug 1972 [10 Feb 1972] 39933/72 Headings F1C and F1J A ducted fan assembly for a gas turbine engine comprises a fan rotor having from 6 to 13 blades and a subsonic tip speed, and a stator disposed in the fan duct downstream of the rotor and having a smaller number of vanes than the number of rotor blades, the rotor, stator and duct being constructed to generate a noise spectrum such that the fundamental blade passage frequency and its predominant multiples are less than 2,500 Hz. Preferably, the number of stator vanes is substantially half the number of rotor blades, i.e., 3 to 7; this suppresses the stator-dominated noise frequencies. The low rotor blade count and low tip speed, which necessitate a low-pressure ratio of between 1.05 and 1.30, reduce the frequencies of the critical acoustic modes of the fan to below 2,500 Hz, thereby avoiding the range of frequencies to which the human ear is most sensitive, viz., 2,500 to 5,500 Hz. Noise is further reduced by making the spacing between the stator and the rotor at least twice the rotor blade width, and by the use of sweep, lean or non-uniform spacing of the stator vanes.
Patent GB-1351788-A (GB)
Title: Semiconductor devices
IPC: H01L29/00
Filed: 1971-08-26
Abstract: 1351788 Semi-conductor devices SIEMENS AG 26 Aug 1971 [26 Aug 1970] 40204/71 Heading H1K A MOSFET comprises a highly ohmic S/C substrate 2, e.g. of weakly p-conducting Si epitaxially coated with thin layer 4 of nconducting Si, on which are disposed source and drain electrodes 6, 8 and insulated control electrodes 10 of transverse elongate structure; to which conductor terminals are provided. The control electrode insulant layer 12 is of, e.g. SiO 2  with an intermediate layer of Si 3 N 4  (not shown) etched to expose electrode regions, and may be of Si 3 N 4  alone or Al 2 O 3  or multiple combined layers thereof. In fabrication, p-conducting regions 14, 15, 16 underlying the source and drain electrodes are formed by in diffusion of Bo so that the regional depths are a predetermined proportion of the substrate thickness, and the electrodes are of Al or highly doped Si. The substrate 2 may be freely n-conducting Si and the layer 4 of p- or n-conducting Si, and the layer and substrate must be of identical material, or of material with similar lattice structure.
Patent GB-1264046-A (GB)
Title: Vertical load transfer
Inventor: MARTIN GERALD
IPC: B66D1/48
Filed: 1969-08-12
Abstract: 1,264,046. Lifting and lowering; transshipping. FAIREY CANADA Ltd. 12 Aug., 1969, No. 40223/69. Headings B8B and B8E. Means for vertically transferring a load carrier 53 between a helicopter 1 and a ship 3 which are subject to vertical relative movements comprises a winch on the ship applying a constant tension to a cable 5 extending up for attachment to a freely rotatable drum 41 in the helicopter, a cable 51 attached to and wound on the drum 41 and extending down for connection to the carrier 53, and a cable 65 extending between the carrier and a haul-down winch 87 on the ship whereby the carrier can be forcibly lowered by the cable 65 against the constant tension in the cables 5, 51, which would normally raise the carrier. Both cables 5 and 65 pass around snatch shock absorbing devices 71 in the form of cable accumulators, each comprising sets of cable pulleys pneumatically or hydro-pneumatically biased apart. In operation, assuming the helicopter is supporting the carrier 53 through cable 51 anchored at 49 to the drum 41 which has a brake 43 applied thereto, and the cable 65 which is anchored to the carrier 53 by an electrically detachable shackle 57, has its free end coiled at 65A in the helicopter, a messenger cable is lowered from a winch 91 to pick up the free end of the cable 5 from the ship for connection at 45 to the drum 41, while the free end of the cable 65 is dropped or later lowered by the messenger cable, to the ship for connection to the device 71 and winch 87. The drum brake 43 is then released and the constant tension winch set in operation, after which the haul-down winch is started to pull down the carrier 53, any movement between the ship and helicopter being compensated for by the constant tension cable whereby the rate of change of position of the carrier 53 relative to the ship remains constant, any sudden movements of the ship being compensated for by the shock absorbers. The electrical shackle 57 for the cable 65 is controlled through a conductor cable 59 payed in and out by a winch in the helicopter and in an emergency is remotely disconnectable, guillotines 103, 105 also being provided to sever cables 5 and 51 in the emergency. The control system for the winches, Fig. 4 (not shown), includes a motor for the haul-down winch controlled by signals from a desired cable velocity control and an actual cable velocity transducer, whereby a constant velocity is maintained by correction, and an hydraulic motor for the constant tension winch which is controlled by setting a desired cable velocity or tension, the actual velocity or tension being sensed to provide correcting signals. A limit tension sensor is provided in the latter system to automatically switch the setting of the constant tension winch from velocity to tension control at a predetermined cable tension.
Patent GB-1159855-A (GB)
Title: Electric Signal Generator
Inventor: IHLENFELDT EUGENE TERENCE
IPC: G05B19/12
Filed: 1967-09-05
Abstract: 1,159,855. Programmed control; automatic control of flux; time control of electric circuits. BOEING CO. Sept.5, 1967, No.40460/67. Headings G3N, G3R and G3T. [Also in Division H4] An electric signal generator comprises, a conductor having a straight section and a coplanar section spaced from the straight section by distances representing a desired relationship between two parameters, an apparatus establishing a flux through the conductor and movable with respect to the conductor and a signal output means connected to the conductor. As shown, a narrow elongated line of magnetic flux is established, in a gap 11C between polepieces 11A, 11B of a magnetic core 11, by an alternating current flowing through windings 12, 13 which is supplied from a generator 14. Through the gap 11C passes a non-conductive plastic card 20 on which is disposed looped conductors disposed in patterns corresponding to desired relationships between parameters, such as temperature and time. Each loop comprises a straight base position 21A, 22A and a shaped portion 21, 22. The conductor is a small diameter enamelled copper wire, glued or taped to the card, or a printed circuit. The induced voltages in the looped conductors are fed by twisted pairs 23, 24 to AC/DC converters 25, 26 connected to programme utilization devices 27, 28. The generator 14 is controlled by a reference loop, having a pair of parallel edges 31, 31A, connected through a twisted pair to an AC/DC converter 33, the output of which is compared with a D.C. reference signal from a source 34 by a detector 16. The detector 16 controls an amplifier 17, in the supply from an oscillator 15 to the windings 12, 13, so as to maintain constant the induced voltage in the reference loop. The core 11 is traversed along the card 20 by a worm and nut arrangement 38, 41 driven by an electric motor 39. In an alternative arrangement the flat card is replaced by a right circular cylinder around the surface of which the core 11 is rotated. The core 11, is made from thin laminations mounted in an aluminium frame disposed within a copper container.
Patent GB-1305481-A (GB)
IPC: C08F218/08
Filed: 1970-08-21
Abstract: 1305481 Vinyl acetate/ethylene copolymer latices BORDEN Inc 21 Aug 1970 [5 Nov 1969] 40495/70 Heading C3P A stable latex of a copolymer of vinyl acetate with ethylene, and optionally up to 10% by weight of a functional reactive comonomer, is prepared by (a) maintaining ethylene pressure above atmospheric on an aqueous emulsifying composition containing a free radical donating initiator; (6) adding vinyl acetate to the emulsifying composition to cause copolymerization of vinyl acetate and ethylene therein; while (c) maintaining continuously the quantity of unpolymerized vinyl acetate in the emulsifying composition at not less than 0À01% and not more than 3À5% by weight of composition during the preparation of a major portion by weight of the copolymer. The copolymerization may be carried out in the presence of a seed latex, e.g. a previously prepared vinyl acetato/ethylene copolymer latex.
Patent GB-1158424-A (GB)
Title: Improvements relating to Load Carrying Pallets
Inventor: TOWNSEND DAVID JAMES
IPC: B60B33/02
Filed: 1965-09-23
Abstract: 1,158,424. Hand trucks. C.D.T. DESIGN CONSULTANTS Ltd. 20 Sept., 1966 [23 Sept., 1965], No. 40589/65. Heading B7B. [Also in Division B8] A pallet comprises a square frame of inverted U channel-section with cross-beams 11 and a wheel 12 at each corner. Each wheel 12 is mounted for rotation in a fork 13 of a carrier having a spindle 14 journalled in a bracket 15 attached to the frame. The wheels 12 are all parallel and the carriers are joined by bars 18 pivoted to links 16. Four actuating means, one on each side of the pallet, each comprising a pedal arm 20, Fig. 5 (not shown), enables all four wheels 12 to be simultaneously turned through a right angle from any side of the pallet by footpressure. The wheels 12 may be interconnected by sprockets and roller chains or roller chain coupled by bars (not shown). One or more pallets may be coupled together in which case provision may be made for coupling the wheel operating means.
Patent GB-1088855-A (GB)
Title: Improvements in or relating to structural members,particularly beams
Inventor: LOWE ROBERT
IPC: E04C3/09
Filed: 1964-10-06
Abstract: 1,088,855. Lattice girders. TERLAN RESEARCH ESTABLISHMENT. Jan. 1, 1965 [Oct. 6, 1964], No. 40632/64. Heading E1K. A girder comprises coplanar plates 1, 2 connected by a zig-zag web 3 and angle members 4 - 7 detachably attached to one or both of the plates to form the flanges. The web 3 may be a bent bar or the plates 1, 2 and the web 3 may be stamped from, a single plate. Wooden strips 8 may be secured to one or both flanges.
Patent GB-1355751-A (GB)
Title: Bladed rotor assemblies
IPC: F01D5/28
Filed: 1972-09-01
Abstract: 1355751 Turbine bladed rotor assembly UNITED AIRCRAFT CORP 1 Sept 1972 [9 Dec 1971] 40632/72 Heading FIT The invention relates to a bladed rotor assembly, for example of a turbine, comprising a rotor disc 28 formed with a plurality of axially-extending blade-mounting slots 26 at its periphery. Each blade comprises high strength non-metallic filaments embedded in matrix material, such as carbon filaments in an epoxy matrix, and comprises an aerofoil portion 10 and a splayed root portion 14. A pad 22 is disposed on each side of the blade, each pad having a first surface 23 which engages with a blade in the region of transition between the aerofoil and root portions and a second surface which engages with a surface of the blade-mounting slot, the two surfaces of the pad converging in a direction away from the aerofoil portion, the pad during rotor operation being a main load-transferring member between the blade and the disc. The blade shown is formed of laminations 16 and 18, the filaments of the laminations 16 extending lengthwise thereof and the filaments of the laminations 18 being inclined with respect to the length of the laminations. Wedge-shaped metallic inserts 20 are disposed between the laminations so as to form the splayed root 14. The pads 22 may or may not be bonded to the blades. The surface 24 of the pad is inclined at angle 44 of 60 degrees to the plane 46 normal to the blade axis while the surface 23 is inclined at angle 48 of 45 degrees thereto.
Patent GB-1225058-A (GB)
Title: Improvements in or relating to nuclear radiation detectors
Inventor: KEITH RONALD LEONARD GORDON
IPC: G01T1/164
Filed: 1968-08-26
Abstract: 1,225,058. Local viewing. UNITED KING- DOM ATOMIC ENERGY AUTHORITY. 12 Aug., 1969 [26 Aug., 1968], No. 40785/68. Heading H4F. A neutron detector, e.g. for determining crystal structures by neutron diffraction, or for neutron radiography, comprises a sheet 1 of a neutron scintillator and a two-dimensional array of photomultiplier tubes 8 optically coupled to the sheet 1 so that a scintillation at any position on the sheet 1 is received at each tube 8, and the outputs of the tubes 8 are combined, e.g. in a capacitor network 11, to produce a signal representative of the scintillation position for the circuitry of a cathode-ray tube 20 or a computer store. As described, the optical coupling is provided by a neutron absorbing sheet 5 of boron loaded glass, and a single, or two, sheets 6, 7 of polymethyl-methacrylate, although fluids may also be used, and the sheet 1 is a zinc sulphide plastic phosphor loaded with lithium fluoride. A collimator of two orthogonal sets 3, 4, of parallel cadmium strips is provided. Four signals from the network 11 convey all the necessary pulse height and position information. These are added at 19 and fed to a circuit 21, e.g. as described in Specification 911, 116, which distinguishes pulses due to neutrons and gamma rays by their length, and applies a bright-up signal to the tube 20 for neutrons. Ratio circuits 17, 18, derive the XY position coordinates which are fed to the tube 20 together with brightness information from 19. Fig. 2 (not shown) illustrates the apparatus mounted for use in neutron diffraction studies.
Patent GB-1137798-A (GB)
Title: Process for reducing the evolution of fluorine values from triple superphosphate fertilizer
IPC: C05B1/04
Filed: 1967-09-06
Abstract: 1,137,798. Calcium phosphate, superphosphate fertilizer. W. R. GRACE & CO. 6 Sept., 1967 [17 Nov., 1966; 21 Dec., 1966], No. 40800/67. Heading C1A. The evolution of fluorine values during the storage of superphosphate fertilizer is considerably reduced by preparing the fertilizer by reacting phosphate rack with a phosphoric acid to which ammonia, urea, or mixtures thereof has been added in a quantity such that the nitrogen thus added is equivalent to 0À4 to 2À5% by weight of the resulting superphosphate. The superphosphate produced may be run-of-pile, i.e. produced using phosphoric acid, analyzing 50-56% by weight P 2 O 5 , or it may be granular triple superphosphate produced using phosphoric acid analysing 37-41% by weight P 2 O 5 . The phosphate rack used may have an analysis of 33- 36% by weight P 2 O 5 . The acid may be furnace grade or wet process acid. Preferably the ammonia used in the process is liquid anhydrous ammonia.
Patent GB-896925-A (GB)
Title: Improvements in or relating to ratchet drives
IPC: F16D41/12
Filed: 1959-12-02
Abstract: 896,925. Ratchet gearing. WELGER, O., and WELGER, K., [trading as WELGER GEB.]. Dec. 2, 1959 [June 18, 1959], No. 40923/59. Classes 80 (3) and 80 (4). A ratchet drive effective in both directions of rotation against a load (e.g. gravity or spring) acting permanently in one direction, comprises a drive pawl 6 pivoted on an operating lever 5 and a fixedly pivoted back-stop pawl 9, so arranged that oscillation of the lever 5 in a forward drive range a turns a driven ratchetwheel 3 in steps against its one-way load, whilst movement of the lever beyond the forward range a into a reverse range b first causes the drive pawl 6 to be lifted off the ratchet by a fixed cam 11 and subsequently to engage and lift off the back-stop pawl 9 just before the fixed cam 11 releases the drive pawl 6 for re-engagement with the ratchet. During this forward oscillation in the reverse range b the ratchet wheel is therefore freed to make a one-tooth reverse step under the influence of the one-way load before the drive pawl re-engages the next ratchet tooth and acts as a back-stop pawl. As shown, the drive is for raising and lowering a hay collector on an agricultural machine, and supported by a lifting cable 4 lapping a pulley integral with the ratchet-wheel 3. The operating lever is moved clockwise by the tractor driver pulling a cable 7, and anti-clockwise to the limit of a stop 1a by a spring 8. Ratchet teeth 13, 14 respectively limit the clockwise and anticlockwise rotation of the ratchet-wheel 3.
Patent GB-1409075-A (GB)
Title: 8-substituted dibenzobicyclo-3,2,1-octadienes
IPC: C07C233/12
Filed: 1972-10-27
Abstract: 1409075 8 - Carboxydibenzobicyclo[3.2.1]- octadiene RIKER LABORATORIES Inc 27 Oct 1972 [29 Oct 1971] 40951/74 Divided out of 1409073 Heading C2C 8 - Carboxydibenzobicyclo[3.2.1]octadiene is prepared by reaction of 8-chlorodibenzobicyclo- [3.2.1]octadiene with magnesium and reaction of the formed Grignard reagent with carbon dioxide.