baber/WOPTO huggingface dataset:
Patent GB-975563-A (GB)
Title: Improvements in electronic control apparatus
IPC: G06G7/186
Filed: 1960-12-14
Abstract: 975,563. Automatic control systems. HONEYWELL Inc. Dec. 14. 1960 [Dec. 24 1959] No. 43072/60 Heading G3R. Electronic control apparatus comprises a direct current amplifier 2 having a high input impedance, a feedback capacitor 8 directly connected between the input and the output of the amplifier, an input circuit including input resistors 20, 22 and a further resistor 28 or 30 connected in series with the amplifier input, a feedback resistor 36 connected between resistor 22 and the amplifier output and a switch 34 for disconnecting the input circuit from the amplifier leaving only the feedback capacitor connected to provide an input signal for the amplifier thereby to hold the output of the amplifier at the value attained at the time of the disconnection of the input circuit. A pair of oppositely-poled diodes 38 connected as shown are provided to limit the input signal to the amplifier. A switch 16 is provided so that the input circuit may be switched from one input terminal 12 to another input terminal 14, the switch 16 being ganged with a switch 26 so that either resistor 28 or resistor 30 is in circuit. Terminal 12 may be connected, for example, to the output of a scanning computor and terminal 14 to a manual control. It is stated that the circuit has the same characteristics as the usual self balancing network having balancing motors and motor driver potentiometers. A further switch 32 is provided for connecting a bias circuit including a bias source 52 to the input of the amplifier in place of the input circuit; this bias circuit is used in automatic control systems when it is necessary to apply a large correcting signal to the amplifier, e.g. in conditions where the error is considerably larger than the controller can reasonably correct.
Patent GB-1285490-A (GB)
Title: Improvements relating to afterburning exhaust arrangements for rotary piston internal combustion engines
IPC: F02B55/16
Filed: 1970-09-09
Abstract: 1285490 Purifying exhaust gases DAIMLERBENZ AG 9 Sept 1970 [12 Sept 1969] 43177/70 Addition to 1234907 Heading F1B In a modification of the afterburner for a rotary piston engine described in parent Specification the inner space of the exhaust pipe has guide plates 11, 12 and 13 to produce gas turbulence.
Patent GB-976237-A (GB)
Title: Improvements relating to rotor discs
Inventor: MORTON ALFRED ALAN
IPC: B23P15/00
Filed: 1962-11-15
Abstract: 976,237. Making turbine discs. BRISTOL SIDDELEY ENGINES Ltd. Oct. 31, 1963 [Nov. 15, 1962], No. 43275/62. Heading B3A. [Also in Division F1] A method of making a turbine &c. rotor disc comprises bringing together two disc-like members 10, 11, Fig. 1, of opposing dish-section, applying pressure to the radially inner portions of the members to collapse them against each other so that their rims are in circumferential tension and their central portions in circumferential compression, and securing the members together to maintain their pre-stressed condition. The discs, which may have a central bore 12, are secured together by bolts or rivets passing through holes 13, or by brazing. In a modification, the discs are recessed to form a coolant chamber 31 and passages 28 connected by radial passages and communicating, through ducts 32, with the roots of turbine blades 23. Spacing lugs 33 on the disc 20 extend into the chamber 28 to bear on the disc 21. The discs are secured together by brazing at the rims 22 and by hollow rivets 25 through which, and through adjacent axial holes, passes cooling air.
Patent GB-1011029-A (GB)
Title: Abrasive wheels
IPC: B24D5/04
Filed: 1964-10-23
Abstract: 1,011,029. Grinding. OSBORN MANUFACTURING CO. Oct. 23, 1964 [Dec. 13, 1963], No. 43363/64. Heading B3D. [Also in Division B5] An abrasive wheel comprises a flexible body 12, granular abrasive within the body, and a reinforcing skeleton 18 embedded within the body, the skeleton being relatively rigid in a radial direction but laterally flexible thereby to prevent substantially radially outward expansion of the body but to permit an appreciable degree of lateral deformation of the working face of the wheel in use. The body 12 consists of foamed plastic, such as polyurethane, with abrasive grains embedded in an outer annular belt adjacent the peripheral working surface of the wheel. The reinforcing skeleton is embedded in an abrasive-free zone of the body and consists of lightweight laminated fibrous material, such as cardboard. A bore 20 is provided in the skeleton to define the arbor mounting for the wheel, and tags 24, 26 project from each side of the skeleton for abutment against the sides of a mould during manufacture of the wheel. The skeleton is also formed with triangular-shaped extensions 28 and during moulding, the foamed plastic enters the spaces in and between the extensions and also openings 22 to mechanically and chemically key the skeleton in the body. In other embodiments, the skeleton is located in the mould by pins which pass through holes in the skeleton and are of deformable material, such as polypropylene. In the manufacture of the wheel, the skeleton is placed on a stud 54, Fig. 6, upstanding from a bottom plate 42 mounted on a support 44 rotatable by a gear drive 48 from a motor 46, the skeleton being spaced from the bottom plate by the tags or pins. A ring 20 is placed around the skeleton and the foamable plastic material and abrasive placed in the mould which is then closed by a cover 50. The mould is then rotated so that the abrasive is forced outwardly by the centrifugal force and as the plastic material foams it fills the spaces in the skeleton. The material is then left to cure with or without the application of heat.
Patent GB-1104729-A (GB)
Title: Colour couplers for cyan
Inventor: EYNDE HECTOR ALFONS VANDEN
IPC: G03C7/34
Filed: 1965-10-13
Abstract: The invention comprises compounds of formula <FORM:1104729/C2/1> wherein Z is H or halogen, X is halogen, OR, SR, SO2R or NR1R11, R is alkyl, aryl or aralkyl, R1 and R11 are alkyl or aralkyl or R1 is H, or NR1R11 may be a saturated heterocyclic nucleus, and Y is alkyl (possibly fluorinated), aralkyl or NR1R11, at least one of R, R1 and R11 being an aliphatic radical for making the molecule fast to diffusion.  The compounds are prepared by reacting the correspondingly substituted aniline with phenyl 1-hydroxy-4-Z-2-naphthoate.
Patent GB-1128681-A (GB)
Title: Improvements in sliding doors
IPC: E06B3/46
Filed: 1964-10-27
Abstract: 1,128,681. Sliding doors. T. H. KENT. 25 Jan., 1966 [27 Oct., 1964], No. 43748/64. Heading E1J. A sliding door e.g. for refrigerators, ship's hatches and fire protection comprises a sliding door part 3 e.g. of solid wood and a fixed framework 3a of complementary wedge-shape cross-sections with the frame 3a thickest on the left hand side and thinnest on the right hand side (as seen in the drawing) and the door part 3 thinnest on the left hand side and thickest on the right hand side, the part 3 being guided for sliding movement with its central plane parallel to the fixed part central plane so as to open or close the opening and bring together or separate the wedge surfaces, a sealing strip 8 e.g. of felt being disposed around the top and side perimeter of the wedging frame surfaces which strip is compressed as the confronting surfaces of the door part and frame come into contact. The door 3 is supported from hangers suspended from trolleys running in inverted-U-tracks which are in turn secured to the wall &c. above the door opening by right angled brackets (23, Fig. 3) on whose horizontal arms the tracks are adjustable perpendicularly to the door and these arms are cut away (at 23a) to provide a clear passage for a curtain of air across a refrigerator door opening. The bottom of the door is provided with a brush or bristle type draught excluder (9 Fig. 5), and the bottom of the door has inverted channel insert which co-operates with guide rollers (13) rotating about vertical axes (14) on a plate 15 adjustable transversely as regards the door opening by slots and bolts 16, 17. An electrical heating strip may be provided around the perimeter of the frame 3a to facilitate breaking joint when the sliding door 3 is to be opened. The fixed frame 3a has a radiused cover plate 26 at the vertical frame parts to facilitate opening and closing of the door 3 and may accommodate the electric heating strip. A manipulation handle 28 is provided for opening and closing the door on the inside.
Patent GB-1487071-A (GB)
Title: Refrigeration apparatus including motor cooling means
IPC: F25B31/00
Filed: 1974-10-09
Abstract: 1487071 Refrigeration; cooling electric motors CARRIER CORP 9 Oct 1974 [29 Oct 1973] 43791/74 Headings F4H and F4U In a refrigeration system comprising a compressor 10, a condenser 14 and an evaporator 11, the compressor motor casing 37 includes a sump for a condensible liquid coolant, e.g. a mixture containing a refrigerant and a lubricating oil, the vaporized coolant passing through an outlet pipe 40 to a heat exchanger 41, which includes a coil 43 containing condensed refrigerant from the condenser 14 and in which the coolant is condensed before passing through a pipe 47 and inlet valve 51 back to the sump, A pump 55 directs liquid coolant through pipes 57, 60 to bearings 30, 31 of the rotor 27.
Patent GB-1547686-A (GB)
Title: Cylobenzaprine derivatives
IPC: A61K31/135
Filed: 1977-10-24
Abstract: 3-Pentanoylcyclobenzaprin and in particular the (Z)-isomer or cis-isomer thereof, and their acid addition salts, are skeletal muscle-relaxing agents. (E, Z)-3-Pentanoylcyclobenzaprin is prepared in a simple manner from (E, Z)-3-(1-hydroxypent-1-yl)-cyclobenzaprin by oxidising the hydroxyl group to a carbonyl group.
Patent GB-1509949-A (GB)
Title: Semiconductor device
IPC: H01L21/86
Filed: 1975-10-28
Abstract: 1509949 Integrated circuits RCA CORPORATION 28 Oct 1975 [13 Jan 1975] 44375/75 Heading H1K Mutual isolation of circuit components formed in a semiconductor layer epitaxially grown on an insulating substrate is achieved by providing a field electrode on an insulating layer overlying parts of the layer between the components and connecting it to the layer, the difference in work function of the electrode and layer materials providing an electric field sufficient to deplete said parts of the layer of carriers. A pair of mutually perpendicular FETs thus isolated are formed in an epitaxial N-type silicon layer on a sapphire, spinel, or titania substrate by first forming successive layers of thermal oxide, polysilicon and boron glass, etching the glass so that it overlies the inter-device regions, heating to drive boron in to dope the underlying polysilicon, removing the glass and etching in a mixture of caustic potash and N-propanol to preferentially remove the undoped polysilicon and thus define the field electrode. After a thermal oxidation step, a born-doped polysilicon layer forming the gates of the two FETs is formed as before. The sites of the FET source and drain regions are then exposed by etching, a layer of phosphorus-doped polysilicon deposited to cover those of one of the FETs and a layer of boron doped polysilicon to cover those of the other and the structure heated to form the regions by diffusion from the doped polysilicon. Contact areas on the source and drain regions and field electrode are then exexposed by etching and aluminium deposited and etched to form the contacts. Details of processing steps and alternative materials are given.
Patent GB-1487634-A (GB)
Title: Iminoimidazolidinedione and parabanic acid polymers containing imide groups
IPC: C08G18/00
Filed: 1974-10-14
Abstract: 1487634 Imide - imidazolidine - dione and -trione copolymers EXXON RESEARCH & ENG CO 14 Oct 1974 [26 Oct 1973] 44410/74 Heading C3R Polymers comprise both (4 - imino - 1,3- imidazolidine - 2,5 - dione) - 1,3 - diyl groups and imide groups derived from carboxylic acid anhydrides. They may be prepared by reacting in a solvent a mixture of an anhydride R(C 2 O 3 ) y , an isocyanate R<SP>1</SP>(NCO) x  and HCN in the presence of an imide-forming catalyst. R is aliphatic, aliphatic-aromatic or aromatic; R<SP>1</SP> is a C 4-60  organic radical and x and y are each 2 or 3. Compounds wherein x or y are 1 may also be present as chain-stoppers. When x and y are 2 the polymer contains at least one each of the units Preferred catalysts are cyanide salts, e.g. NaCN, KCN, Cd(CN) 2  and Zn(CN) 2 . Numerous anhydrides, isocyanates, solvents and possible applications of the polymers are mentioned. Copoly - arabamic acid - imides may be obtained from the above polymers by acid hydrolysis which converts the 4-imino groups to keto groups. In specific examples the anhydride is benzophenone tetracarboxylic dianhydride, the isocyanate is diphenylmethane diisocyanate, the solvent is dimethylformamide, the catalyst is NaCN and acid hydrolysis is effected with sulphuric acid.
Patent GB-1368450-A (GB)
Title: Insect trap
IPC: A01M1/14
Filed: 1971-09-23
Abstract: 1368450 Insect trap MINNESOTA MINING & MFG CO 23 Sept 1971 [24 Sept 1970] 44496/71 Heading AIM A collapsible insect trap is formed from a blank which is folded along dotted lines to form the structure shown in Figure 1. The structure 10 comprises at least three vanes 11, 12, 13 projecting from a common axis 14, structure rigidity being supplied by horizontal shelf portions 20, 22. A tacky substance 29 is coated on the outer surfaces of the vanes 11, 12, 13 and may also be coated on the shelf portions 20, 22. A container 28, enclosing an insect attractant, may be lodged within aperture 50. Alternatively, the attractant may be mixed with paraffin wax and adhered to the substance 29, or enclosed in glass or plastics bubbles before adhering to the substance 29. The trap material may be coated with water and/or grease repellant.
Patent GB-1205670-A (GB)
Title: Pressure relief device
IPC: F16K17/16
Filed: 1968-09-19
Abstract: 1,205,670. Bursting discs. AMETEK Inc. Sept.19, 1968 [Feb. 8, 1968], No.44640/68. Heading F1P. A pressure relief device between an inlet 14 and an outlet 11 has a diaphragm 30 clamped between a body 10 and a flange 12 and positioned adjacent a rupturing member 50. A first resilient snap-over member 36 acts to bias the disc away from the member 50 and snaps-over on excess pressure in the inlet to allow a second resilient snap-over member 34 and the excess pressure to force the diaphragm on to the rupturing device. The pressure at which relief occurs is adjustable by a ring 38 axially movable by screws 40. In a second embodiment in which the relief pressure is adjustable from downstream, the downstream abutment of the member 36 is an axially adjustable ring.
Patent GB-1057999-A (GB)
Title: Means for interrupting a water supply line upon a predetermined drop of pressure therein
IPC: C10H21/08
Filed: 1965-10-22
Abstract: 1,057.999. Water supplies. W; MULLER. Oct. 22, 1965 [Oct. 24, 1964], No. 44936/65. Heading E1X. To prevent back flow in a water supply line upon a predetermined drop of pressure therein there is provided in the line a shut down valve that, under normal conditions existing in the line, is maintained open by the pressure in the line but which on a pressure drop occurring in the line is positively actuated to close the supplied system from the supplying system by venting the line on the supplying system side of the valve to atmosphere. The venting is caused by the opening of a drain spigot connected in the line, the opening being due to the pressure drop in a branch line connected to the supply line before the valve. In the branch line is a throttle a valve responsive to pressure in the branch line for venting the line to atmosphere on a pressure drop occurring in the branch line, which leads to a chamber closed by a diaphragm controlling the opening and closing of the spigot.
Patent GB-1521077-A (GB)
Title: System for adapting a storage container for handling tran-sportation and storage thereof
IPC: B65D19/40
Filed: 1975-10-30
Abstract: 1521077 Buffer members for containers SOC CIVILE IMMOBILIERE ASNIERES PRONY 30 Oct 1975 44964/75 Heading A4U [Also in Division B8]  A support 10 for attachment to the corners of a container to space the container from the ground for handling by a fork lift device comprises a triangular support plate 11, which engages the lower surface of the container side walls 12a, 12b, which engage the sides of the container, and a central, frusto-conical foot 13. Channels 18 are provided in each side wall 12a, 12b to locate strapping (17a), (17b) Fig. 1 (not shown) which retains the support on the container. Additional corner members (19) may be located on the upper corners of the container and each comprises a triangular plate with side walls. The plate has peripheral projections (21) Fig. 3 (not shown) which define a support surface (20) to receive the foot 13 of a support 10 secured to a superimposed container.
Patent GB-1139820-A (GB)
Title: Centrifugal pump
IPC: F04D7/04
Filed: 1966-10-10
Abstract: 1,139,820. Centrifugal pumps. MORTON INTERNATIONAL Inc. Oct. 10, 1966 [Dec. 17, 1965], No. 45255/66. Heading F1C. A centrifugal pump for liquids containing solids having an inlet 16 and an outlet 18, comprises an elongated casing 12 communicating through apertures 48 with a liquid accumulator 47. Air trapped at the top of the casing by the pumped liquid forms a baffle between the pumped liquid and sealing means 24. The latter comprises a rotary seal 25 and is supplied with sealing water or other liquid compatible with that being pumped. Alternatively, pressurized sealing air may be used. A clear plastics or glass sight tube 55 serves as a safety device for indicating leakage at the sealing means. Removable plugs 49, 51 facilitate cleaning of the accumulator. The pump shaft is supported in two bearings 50, 52. Pump mounting brackets 53, 54 are provided.
Patent GB-1140561-A (GB)
Title: Improvements in tunnel mixing burners
Inventor: HOGGARTH MALCOLM LESLIE
IPC: F23D14/00
Filed: 1964-11-10
Abstract: 1,140,561. Gas burners. GAS COUNCIL. 8 Feb., 1966 [10 Nov., 1964], No. 45726/64. Heading F4T. A gas burner comprises a combustion chamber 7 lined with refractory material 8 and having an inner end wall formed by a plate 9 provided with gas orifices 10 and air orifices 11, which air orifices 11 open directly from an air manifold 12 supplied from an inlet 13. The gas orifices 10 are connected through the air manifold with a gas manifold via tubes 14 which are either welded to or fit with the plate 9. A distribution plate 17 is fitted within the gas manifold leaving an annular gap 18 around its periphery and the manifold is fed with gas through inlet 16 retaining a radio setting valve 19. The air orifices 11 are arranged around the gas orifices 10, and the gas orifices arranged symmetrically about the axis of the cylindrical combustion chamber. In the embodiment of Figs. 3 and 4 (not shown), the combustion chamber is of rectangular crosssection and the gas tubes 14 open into an elongated orifice 10 arranged along the major axis of the cross-section with the air orifices along each side of this orifice. In the embodiment of Figs. 5 and 6 (not shown), the combustion chamber is formed with a convergent outer portion 23 and has only a single gas orifice eliminating the necessity for a gas manifold. In the embodiment of Fig. 7 (not shown), the gas orifice is surrounded by an annular air orifice 25. The flow area ratio between the combustion chamber and the air orifice or orifices is preferably between 12 and 24 : 1 and the total area of the gas orifices is not less than twice that of the air orifices.
Patent GB-1035490-A (GB)
Title: Thermal insulation material
IPC: A47G9/00
Filed: 1962-12-04
Abstract: 1,035,490. Quilts; sleeping bags. E. W. SIDEBOTHAM. Dec. 4, 1963 [Dec. 4, 1962], No. 45883/62. Headings A4G and A4S. [Also in Division B5] Quilts, sleeping bags and tents are made from material comprising a plurality of connected layers each formed by two impervious rubber, plastics or coated sheets welded or bonded together at discrete intervals and continuously at the periphery so as to provide inflatable compartments in each layer. A lateral jointing strip connects adjacent layers at their peripheries. The weld lines may be continuous or cruciform, with a perforation at the weld to allow passage of air into the compartments between layers during inflation or deflation.
Patent GB-971343-A (GB)
Title: Production of phosphorus from ferrophosphorus
Inventor: BILLS PATRICIA MARY
IPC: C01B25/02
Filed: 1961-12-21
Abstract: Phosphorus is recovered by destructive distillation of molten ferrophosphorus without added reactants, and separation of phosphorus from the resulting vapour.  The ferrophosphorus is the mixture of iron and 23-27% of phosphorus obtained in the manufacture of phosphorus by reduction of phosphate ores. Heat is supplied during the distillation to keep the ferrophosphorus molten, e.g. at 1380-1550 DEG  C. The destructive distillation is carried out either by subjecting the melt to a vacuum, or inert gas purging or both.  In the vacuum method, a pressure of 10 mm. Hg or less is used. For gas purging, a high velocity jet, which may be hooded, may be directed on to the surface of the melt at a pressure of 50-100 p.s.i.  The gas should produce a surface depression in the melt, and may produce surface turbulence, with detachment of small drops.  Suitable gases are oxygen-free nitrogen, carbon monoxide, argon, and the mixed gases from phosphorus plants.  The volume of gas used per gm. of phosphorus should be at least equivalent to 10 mm. Hg preferably supplied at a rate at least 56 litres per gm. of phosphorus.  The gas may be dried and/or preheated.  A number of suitable apparatus are described in which the melt is heated in a refractory or copper ingot furnace by induction or arc.  Gas purging may be used with induction heating. The arc is struck between carbon or ferrophosphorus electrodes and the molten ferrophosphorus which may contain slag, or between a consumable ferrophosphorus electrode and a carbon ring electrode. The furnace and electrode may be water cooled.
Patent GB-1528120-A (GB)
Title: Non-drip flow valve
IPC: F16K23/00
Filed: 1975-10-21
Abstract: 1528120 Non drip flow valve in sprinkler systems A F THOROGOOD 21 Oct 1975 [21 Oct 1974 5 March 1975] 46005/74 and 9213/75 Heading AID [Also in Division F2] A non-drip pressure responsive valve for horticultural sprinklers 21 has a valve member 7 with a rounded seat-contacting portion of elastomeric material urged into seating contact by an adjustable spring 9 to be opened against the spring by fluid pressure on the rounded portion. The seat contacting portion may be part spherical, or ball, or mushroom shaped and make circular contact with, for example a conical seating. The spring may encircle a projection 6, be retained between the valve member and a body part 3 and have an end coil accommodated in a neck portion 12 of the valve member. Adjustment of the spring load is effected by a screw connection between body parts 2, 3 as set by the selected thickness of a washer 14 and may be locked by a screw 15. A flow volume adjuster 17 may function by screw adjustment in bore 16.
Patent GB-1182513-A (GB)
Title: Guanosine Derivatives and a process for preparing the same
Inventor: SUZUKI YOSHIHISA
IPC: C07H19/16
Filed: 1968-09-27
Abstract: 1,182,513. Guanosine derivatives. AJINOMOTO CO. Inc. 27 Sept., 1968 [7 Oct., 1967], No. 46160/68. Heading C2C. Alkali metal salts of guanosine, or hydrates thereof, are prepared by reacting guanosine with at least an equimolar amount of an alkali metal hydroxide or carbonate in an aqueous reaction medium. The aqueous medium is preferably water, an aqueous solution containing a neutral salt, or an aqueous solution containing a lyophilic organic solvent. The salts are recovered as crystals by conventional means. The crystals are readily decomposed to give guanosine, and the process may be used as an industrial purifying procedure for guanosine.