baber/WOPTO huggingface dataset:
Patent GB-540011-A (GB)
Title: Improvements in or relating to pressure casting machines
IPC: B29C45/58
Filed: 1939-11-14
Abstract: 540,011. Injection-moulding machines. LESTER, N., and LESTER ENGINEERING CO. Nov. 14, 1939, No. 30039. [Class 87 (ii)] A machine comprises a cylinder 1, an annular plunger 2, and a spreader 3 having an integral portion 4 disposed between the end of the cylinder and a nozzle body 5. An annular chamber 6 is formed between the spreader and the cylinder, and from this space circular passages 7 converge to the inlet end of the nozzle passage 9. The ribs 11 between the passages 7 are tapered toward the passage 9.
Patent GB-672300-A (GB)
Title: Combined holder and stand for note-books and the like
IPC: B42D5/00
Filed: 1949-11-23
Abstract: 672,300. Stands. DILNOT, H. S. Aug. 14, 1950. [Nov. 23, 1949] No. 30053/49. Class 52 (iii). A stand for a notebook or pad comprises three plates of stiff material 1, 2, 3 hinged together along the ends of the plate 2 which supports the notebook, the hinge sockets being formed by rolling the edges of the plates. The hinge pin 11 may have hooked ends 12 to engage the binding of the notebook. The strut 3 is positioned by a ledge 13 which also serves to retain the parts when folded flat.
Patent GB-994650-A (GB)
Title: Self-threading nut for use in quick release fasteners
IPC: F16B5/02
Filed: 1962-08-03
Abstract: 994,650. Turn-buttons. ELASTIC STOP NUT CORPORATION. Aug. 3, 1962 [Aug. 16, 1961], No. 30066/62. Heading E2A. [Also in Division F2] To join a panel 10, Fig. 1, with a circular hole 36, to a panel 12 with an elongated hole 38, Fig. 5, a bolt 8 is first inserted through the hole 36 of the first panel 10, as indicated in Fig. 1, and screwed into an unthreaded bore 18 in a nylon member 6, which has an elongated cross section, Fig. 5, a clamping surface 28, two cam surfaces 34 and two stop surfaces 30. Screwing is stopped when a raised face 14 of the member 6, adjacent the surface 28, is spaced from the bolt head 20 by a distance less than the combined thickness of the panels 10, 12. The panel 12 is then brought into position, Fig. 2, with the bolt 8 and member 6 turned so that the latter is aligned with the hole 38. The bolt 8 and member 6 are then turned as a unit through a right angle, Fig. 5, so that the stop surfaces 30 of the member 6 contact the edge of the hole 38 to prevent further turning of the member 6 in that direction. Further turning of the bolt clamps the panels together.- To release the panels, the bolt 8 is turned through a right angle in the reverse direction until the member 6 and the hole 38 are again aligned. The cam surfaces 34 facilitate subsequent re-joining of the panels. The bore 18 of the nylon member 6 is countersunk at 26 and may be closed at the other end.
Patent GB-663153-A (GB)
Title: Improvements in the production of imprints on the internal surfaces of glass objectsduring their moulding
IPC: C03B11/06
Filed: 1949-11-23
Abstract: 663,153. Glass manufacture. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST.-GOBAIN, CHAUNY, ET CIREY. Nov. 23, 1949 [Nov. 23, 1948], No. 30068/49. Class 56 A process for moulding a glass object to produce a cavity therein the internal surface of which in a certain zone is to have projections and recesses, e.g. an internally screw-threaded insulator 6, comprises :-(a) producing a partly finished blank of the insulator in which the zone 8 is not imprinted, and (b) forming the imprint, i.e. the thread, on the zone 8 by means of a tool 9. The partly finished blank is produced in known manner, the top part of the mould removed, and the tool 9 then screwed into the glass 6. The tool 9 is spigoted to a rod 10, 10a, which is threaded at its upper end, and is rotated to be lowered or raised, carrying with it the tool 9. A member 20 is resiliently supported from a plate 22 fixed to the rod 10a to prevent deformation of the skirts 6, 6a on the insulator. Alternatively, the tool 9 may be initially inserted by simple translatory motion, and unscrewed for extraction, the threaded imprint being retained by the glass, or it may be screwed in, its threads retracted, and extracted without rotation. The Specification as open to inspection under Sect. 91 states that the method is applicable to external glass surfaces. This subject-matter does not appear in the Specification as accepted.
Patent GB-809704-A (GB)
Title: Improvements in the preparation of aromatic nitriles and imides
Inventor: HADLEY DAVID JAMES
IPC: C07C255/51
Filed: 1956-10-03
Abstract: The catalyst of vanadium oxide on an alumina support prepared as in the parent Specification is further treated by heating to at least 650 DEG  C. after the deposition of the vanadium oxide.  This second heat treatment may be carried out for about 3 hours and at least part of it should take place in the presence of air, the remainder taking place in air, nitrogen or any other nonreducing atmosphere.ALSO:The process of the parent Specification for the preparation of aromatic nitriles and imides by contacting at an elevated temperature in the vapour phase a mixture of an alkyl substituted aromatic hydrocarbon of the kind defined or its nuclear monohalo derivative, ammonia and molecular oxygen with a catalyst of vanadium oxide supported on activated alumina, the latter having been heated prior to the deposition of the vanadium to a temperature in the range 1000 DEG  to 1500 DEG  C., is modified in that the preparation of the catalyst includes further heat treatment, after deposition of the vanadium, to a temperature of at least 650 DEG  C.  Starting materials and reaction conditions are as in the parent Specification.  An example is given of preparation of terephthalonitrile from p-xylene and ammonia using catalysts which had received (1) final heat treatment at 700 DEG  C.; (2) final heat treatment at 600 DEG  C.; (3) final heat treatment at 500 DEG  C.; and (4) no final heat treatment at reaction temperatures from 394-485 DEG  C.
Patent GB-755963-A (GB)
Title: An improved process for chilling cast-billets in continuous-casting-plants
IPC: B22D11/124
Filed: 1953-11-02
Abstract: 755,963. Continuous-casting machines. BOHLER & CO., AKT.-GES., GEB. Nov. 2, 1953 [Nov. 6, 1952], No. 30188/53. Addition to 755,525. Class 83 (1). In the process for cooling continuously-cast billets outside the mould, as claimed in the parent Spefication which is referred to, the cooling is effected by spraying from nozzles distributed along the entire cooling length of the billet. the distance between the nozzles progressively increasing with increasing distance from the outlet of the chill mould. The nozzles are enclosed in a sheet-metal casing on which vaporized cooling water condenses so that the billet is not obscured by steam.
Patent GB-484491-A (GB)
Title: Improvements in and relating to the wrapping of sweetmeats and other articles
IPC: B65B11/10
Filed: 1936-11-05
Abstract: In wrapping-machines in which the wrapper is presented obliquely in respect of the article, adhesive is applied to an edge of the wrapper by mechanism movable in conformity with the oblique disposition of the edge.  Wrappers 1 are contained in a magazine 2 arranged obliquely in respect of the article 5 to be wrapped.  A wrapper is withdrawn by a gripper 4 to overlie the article in the position shown in broken lines, and, during this movement, a line 20 of adhesive is applied by a wheel 7.  In order to compensate for the oblique position of the wrapper, the gumming mechanism is moved transversely between the positions shown by mechanism 8, 9, co-ordinated with the gripper 4 so as to produce a strip of adhesive parallel and adjacent to the edge of the wrapper.  The article 5 is then pushed upwards into a folding box, carrying the wrapper with it.  The inclination of the <PICT:0484491/III/1> magazine 2 and the travel of the gumming device are adjustable.
Patent GB-913838-A (GB)
Title: Improvements in or relating to liquid pressure braking systems for vehicles
Inventor: RODWAY JOHN
IPC: B60T8/26
Filed: 1960-09-01
Abstract: 913,838. Hydraulic brakes. AUTOMOTIVE PRODUCTS CO. Ltd. June 14, 1961 [Sept. 1, 1960], No. 30195/60. Class 103 (1). A liquid-pressure vehicle braking system includes a valve device responsive to deceleration and arranged to cut-off the supply of pressure liquid to the rear wheel brakes when the rate of deceleration reaches a predetermined value. The valve device comprises a body 21 having an inlet 31 and an outlet 33 for pressure liquid and a weight 27 pivoted at 28 and movable to a position (as shown) in which it closes the outlet. The relative positions of the pivot 28 and the centre of gravity of the weight are such that the weight is urged by gravity away from the position in which it closes the outlet, but tends to move towards that position due to its inertia during deceleration. The weight 27 is provided with a number of holes through which the pivot-pin may be passed in order to vary the pivot position and accommodates a deformable pad 35 to engage the seat 34 to close the outlet.
Patent GB-1488342-A (GB)
Title: Process for the preparation of 2,4-diamino-5-(2-methyl-4,5-dimethoxybenzyl)pyrimidine
IPC: C07D239/62
Filed: 1976-07-20
Abstract: 1488342 Ormetoprim PLIVA PHARMACEUTICAL & CHEMICAL WORKS 20 July 1976 30209/76 Heading C2C Ormetoprim is prepared by condensing ethyl 2 - methyl - 4,5 - dimethoxybenzylcyanoacetate or diethyl 2-methyl-4,5-dimethoxybenzylmalonate with guanidine or urea, chlorinating the product with POCl 3 , PCl 3  or PCl 5  (after acetylation of any NH 2  group(s) present), converting to 2,4 - diamino - 5 - (2 - methyl - 4,5 - dimethoxybenzyl) - 6 - chloropyrimidine (NH 3 ) and removing the halogen atom by catalytic hydrogenation. The preparation of diethyl 2 - methyl - 4,5- dimethoxybenzylidenemalonate and diethyl 2- methyl - 4,5 - dimethoxybenzylmalonate is described.
Patent GB-568592-A (GB)
Title: Improvements in and relating to arc suppression coils
IPC: H02H9/08
Filed: 1938-10-20
Abstract: 568,592. Protective arrangements. HACKBRIDGE ELECTRIC CONSTRUCTION CO., Ltd.. and TOBIN. E. Oct. 20. 1938. No. 30327. [Class 38 (iv)] The effective inductance of a Petersen coil 4 connected between earth and the neutral point 2 of a polyphase system 1, is varied by a secondary winding 6 across which different reactors 8 may be connected by switches 9.
Patent GB-1166821-A (GB)
Title: Teaching Machine
Inventor: BATES ANTHONY JAMES
IPC: G09B3/04
Filed: 1965-07-10
Abstract: 1,166,821. Teaching machines. AUTOBATES LEARNING SYSTEMS Ltd. 7 Oct., 1966 [10 July, 1965; 7 July, 1966], Nos. 29334/65 and 30440/66. Heading G5G. Question and answer device for branch and linear programmes includes a programme web, viewable through a window 3, and carrying questions and preprinted answers, and a web for receiving students answers. The programme and answer webs are mounted on.spools 4, 5 and 6, 7 respectively, the spools 4, 6 being simultaneously rotated by a handle 8 when turned clockwise. Anticlockwise movement of spool 6 is prevented by a ratchet mechanism 10d and the spool is rotatably mounted on the axle 9 of spool 4 and is connected thereto through a clutch mechanism (10a, 10b, Fig. 3). When used in a branch programme the programme web can be moved in either direction through the device whilst the answer web can only be moved in one direction. An electrical contact 26 is provided in a circuit including a lamp adapted to illuminate the programme web. This contact is broken whilst the programme web is being moved by action of friction pad 14 against washer 13 but upon termination of movement and depression of button 25 the contact is made. The programme web may be translucent and printed on its underside. Alight may be illuminated continually to illuminate a frame member of the programme.
Patent GB-1424398-A (GB)
Title: Detection of specific substances in various atmospheres
IPC: G01N27/12
Filed: 1973-06-27
Abstract: 1424398 Detecting gases electrically INFICON Inc 27 June 1973 30453/73 Heading GIN Halogen containing gases are detected using a sensor comprising a semi-conducting glass-ceramic body derived from a mixture comprising sodium or lithium silicate and a metal oxide and/or halide. A glass-ceramic body 11 e.g. sodium silicate, lanthanum oxide, and lanthanum fluoride is formed round platinum wire 14 and a second platinum wire 16 is wrapped round the body 11. A voltage from battery 20 is applied across wires 14, 16 and the body is heated to a temperature above 500‹C to form a depletion layer 17 caused by the migration of the alkali metal ions from terminal 16 to terminal 14. Due to the small number of carriers in the surface region the depletion layer provides a high resistance region at the surface and the conduction indicated at 22 becomes very small. In the presence of a halogen containing gas the negative ions of this gas will accumulate on the depletion layer and cause some of the alkali metal ions to migrate back to the depletion layer so that the carrier concentration in the depletion layer increases with resulting increase in current flow through meter 22. Alternative compositions are:- substituting lithium silicate for sodium silicate, or by substituting the lanthanium oxide or lanthanum fluoride with an oxide or halide of scandium, yttrium, aluminium, gallium or other rare earth metal.
Patent GB-1187176-A (GB)
Title: Vertically Orientated Centrifugal Pump.
IPC: F04D7/06
Filed: 1968-06-27
Abstract: 1,187,176. Centrifugal pumps. UNITED STATES ATOMIC ENERGY COMMISSION. June 27, 1968 [July 14, 1967], No.30625/68. Heading F1C. In a centrifugal pump, e. g. for liquid metals, liquid is allowed to leak from the impeller chamber 30 upwardly into a vertical casing 5 to establish therein a free-surface liquid level. Some of the leakage occurs through a labyrinth seal 4. A chamber 19 receives pressurized liquid from discharge volute 3 via a passage 3. Moreover, a pair of series-connected auciliary impellers 10, 11 receiving liquid via ports 21, deliver it to the chamber 19 at a pressure greater than that developed by the main impeller 2. The pressurized liquid in the chamber 19 passes through opening 20 to the shaft bearing 6; thereafter some of the liquid returns to the auxiliary impellers and the remainder returns to the impeller chamber 30 via passages 8. The free-surface liquid level is determined by the position of the top auxiliary impeller. A drain passage 28 is provided. When liquid sodium is being pumped, the space above the liquid level in the casing 5 usually contains nitrogen or argon. The pump shaft is supported at a floor plate 14 by a thrust bearing and gas seal assembly 15. A heat barrier cavity 16 containing air or conventional insulation, and a radiation heat barrier 17, are provided.
Patent GB-1074088-A (GB)
Title: A process for the production of voluminous elastic fibre yarns
Inventor: SCHELL KURT
IPC: D02G3/22
Filed: 1964-08-04
Abstract: Voluminous elastic yarns are made from bifilar fibres comprising an elastomeric and a non-elastomeric fraction.  Bifilar filaments spun from a solution of a polyester or polyether urethane segment polymer and from a solution of polyacrylonitrile are stretched and dried under tension, optionally crimped, and stapled.  The bifilar fibres either by themselves or together with other non-elastomeric fibres for example polyacrylonitrile fibres-are carded and spun into yarn. The spun yarn either before or after being made up into a textile article is shrunk by treatment in boiling water or steam causing the elastomeric fraction to shrink and most of the points of union between the two fractions to break so that the non-elastomeric fraction forms coils around the elastomeric fraction.  Alternatively the shrinking treatment may be applied before the carded fibres spun.
Patent GB-800477-A (GB)
Title: An improved process and apparatus for producing bonded fibrous glass
IPC: B01F25/70
Filed: 1955-10-26
Abstract: 800,477. Agglutinated fibrous glass materials; laminates. OWENS-CORNING FIBERGLAS CORPORATION. Oct. 26, 1955 [Oct. 26, 1954], No. 30684/55. Drawings to Specification. Class 140. Bonded fibrous glass material is produced by flowing a stream of molten glass on to a rotating spinner to form a plurality of individual streams of molten glass and applying a gaseous blast to attenuate said streams into fibres arranged in a downwardly advancing hollow column of spiralling fibres and then spraying a binder material into the advancing hollow column of fibres to mix intimately with them before they are collected in a haphazardly arranged mass. The spiral motion of the fibres may be opposed by the provision of air jets which cause the fibres thereafter to continue downwardly without spiral motion or the same effect may be achieved by the spraying of the binder. The column of fibres after spraying with binder may be disrupted by air jets to intermingle the fibres. The deposited mass of fibres is received on a conveyer beneath which a suction box may be arranged so that a continuous substantially uniform fibrous web is formed which preferably passes between compacting compression rollers. Several units producing such webs may be stationed at intervals along the conveyer so as to form laminated materials. The binders which may be applied in an aqueous vehicle or an organic solvent or as a powder may be starch, gelatin, natural resins, synthetic resins such as phenol formaldehyde, urea formaldehyde, polyamides, polyesters, methacrylate resins, epoxy resins, or rubbery polymers and copolymers such as butadienestyrene or butadieneacrylonitrile, or mixtures of these materials. Glass-resin-glass sandwiches may be made using the synthetic resins named for the binder. When using thermosetting materials, curing ovens may be provided.
Patent GB-211104-A (GB)
Title: Improvements relating to devices for examining dia-positives, and for the stationary or animated projection thereof
IPC: G03B21/00
Filed: 1923-12-06
Abstract: 211,104. Ventujol, F. J. E. Feb. 10, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Optical - projection apparatus; viewing- apparatus. - Apparatus enabling a diapositive or a projected stationary or kinematograph image to be viewed comprises a casing a having an opening b, a mirror c, and a frosted-glass or other translucent screen f, the screen being shielded by the walls of the casing. The dia-positive d is carried in a frame e and illuminated by a lamp g. When a projected image is to be viewed, a projection apparatus and a mirror to reflect the light beam on to the screen f are substituted for the lamp g, and the frame e is removed.
Patent GB-881571-A (GB)
Title: Improvements relating to the cooling of semi-conductor devices
Inventor: DAVIS JOHN JARRETT
IPC: H01L23/40
Filed: 1958-09-25
Abstract: 881,571. Semi-conductor devices. STONE & CO. (DEPTFORD) Ltd., J. Aug. 25, 1959 [Sept. 25, 1958], No. 30742/58. Class 37. A semi-conductor device is mounted by way of a heat-sink metallic body on a supporting metal wall, a thin disc or sheet of mica, micanite, &c. being interposed between the body and the wall to insulate them electrically from one another while not seriously reducing the thermal conduction between them. As shown, Fig. 2, an encapsulated germanium diode 6 has a copper base with a threaded stub 7 by means of which the diode is mounted on a raised pad 2 on the internal surface of the wall 1 of a rectifier box 20, the stub passing through apertures in a copper disc 8 and a thin mica disc 4 and being insulated from the wall 1 by a bush 10 and washer, moreover the pad 2 is counterbored around the aperture therein. Copper disc 8 is provided with a terminal, and silicone grease may be coated on the mating surfaces of copper and mica. The end of the stub 7 is secured by a nut 17 within a recessed boss 3 on the external surface of the wall 1, the remaining space in the recess being filled with pitch or solid-setting insulating compound which is covered by an aluminium disc 19. The optimum size for mica disc 4 is twelve times the area of the base of the rectifier 6. Box 20 may be made of cast aluminium and may contain a plurality of diodes, being closed by a lid 21, mating surfaces of lid and box being machined flat and the box and lid being anodised. Cable entries may be screwed into the box at the level of a terminal board inside the box. Such an arrangement may be mounted on the underframe of a vehicle. Fig. 3 shows a plurality of silicon diodes 6<SP>1</SP> mounted by stubs 7<SP>1</SP> and locking strips 711 on a common copper or aluminium alloy body 8<SP>1</SP> separated from a single pad 2<SP>1</SP> by a common punched sheet 4<SP>1</SP> of mica &c., heat dissipating fins 23 being provided on the outside of wall 1. For rectification of a three-phase system, three silicon rectifiers of each polarity may be mounted on two separate bodies 8<SP>1</SP> which act as positive and negative bus-bars and are secured to pad 2<SP>1</SP> through a common insulating sheet, the box 1 also accommodating ancillary equipment, e.g. a voltage regulator. Transistors may be mounted on the stem of a T-shaped body of copper or aluminium alloy, the head of the T being mounted, through the mica, against the pad.
Patent GB-796150-A (GB)
Title: Improvements in ultrasonic testing apparatus
IPC: G01N29/28
Filed: 1954-10-27
Abstract: 796,150. Ultrasonic inspection devices. KRAUTKRAMER, J., and KRAUTKRAMER, H. Oct. 27, 1954, No. 31038/54. Drawings to Specification. Class 118 (2). [Also in Group XXXIX] When testing for flaws with ultrasonic waves, an absorbent coupling is used to reduce the intensity of a reflected wave received by the transducer from the interface between the coupling and the test-piece to “ or less of the intensity of the wave initially transmitted by the transducer. The coupling may comprise a layer of red or synthetic rubber immersed in water. In another arrangement, the coupling comprises two layers of synthetic rubber separated by a thin layer of coupling liquid. When the outside layer is worn, the other layer protects the head until the first is replaced. The outer layer may be an endless belt which rolls upon the material under test as the head is advanced over it, running water being used as a contact medium. An electrode may be formed either on the transducer crystal itself or on the synthetic rubber layer next to the crystal. It may be formed as a .conductive liquid or as a metal foil in liquid between the synthetic rubber and the crystal.
Patent GB-869700-A (GB)
Title: Improvements in or relating to agricultural machines
IPC: A01D78/02
Filed: 1958-09-29
Abstract: 869,700. Haymaking machines. WEBB Ltd., E. A., and WEBB, A. E. May 27, 1959 [Sept. 29, 1958], No. 31082/58. Class 6(3) A haymaking machine comprises a wheeled frame 13 having a horizontal transverse rotor 25 partly surrounded by a hood 11, the rotor being fitted with tines 34 for picking up the crop and vanes 28 for creating an air-current within the hood to aerate the crop before it is re-deposited on the ground. The frame 13 is U-shaped in plan, the limbs being extended rearwardly by plates 21 and carrying the rotor. The forward part 42 of the frame is hollow and houses a belt-drive from an input shaft 45 to the rotor-spindle 26, the input shaft being connected to a power take-off of a towing tractor (not shown), to the threepoint linkage of which the frame is attached at 57, 58. The ground-wheels are carried by vertically-adjustable standards 53 mounted in brackets 54. The rotor is formed from four rectangular plates having abutting flanges 27 extending at 135 degrees to the planes of the plates. Gussets 31 fixed to the plates carry rods 32 on which springs 33 are mounted, one bent end 34 of each spring forming a tine and the other an anchorage against the respective rotor-plate. The ends of the rotor are formed by discs 38 welded to it and encircled by rings 39 forming part of the frame, this arrangement preventing windage of hay around the rotor-shaft. Hinged doors 61 mounted behind the rotor are adjustable by the positioning of stays 62.