baber/WOPTO huggingface dataset:
Patent GB-2007731-A (GB)
Title: Improvements in and relating to sewing machines
IPC: D05B73/00
Filed: 1978-10-19
Abstract: A sewing machine formed of a bed 10, an arm frame 13 laterally disposed above the bed, and an upright support uprightly extended from the bed and supporting one end of the arm frame at an upper end thereof has an upper mechanism 24 of an ordinary sewing mechanism [is] disposed in the foremost end of the arm frame and a lower sewing mechanism 26 disposed below the upper mechanism within the bed and is provided with an overlock sewing mechanism 44 in a recess within the machine frame. <IMAGE>
Patent GB-2035837-A (GB)
Title: A timing device for a pressure cooker
IPC: A47J27/62
Filed: 1978-12-04
Abstract: The pressure weight 12 of a pressure cooker is lifted clear of vent 11 by a spring arm 27 when the arm is released by a timer 21. At the end of a set timing period, timer 21 rotates a shaft 22, and a pin 32 thereon is disengaged from a camming surface 33 on the arm 27. As shown, the timer is mounted in a framework 23 which is mounted on a plate 13 secured to the lid of the pressure cooker. The end of arm 27 is bifurcated. In an alternative arrangement (Fig. 3, not shown), the timer stands on the lid of the pressure cooker. <IMAGE>
Patent GB-2013318-A (GB)
Title: Constant pressure compressed gas energy storage system and method
IPC: F02C6/16
Filed: 1979-01-05
Abstract: A system and method for storing energy in the form of compressed gas. Two types of compressed air storage systems are known, a constant pressure or a variable pressure reservoir. The former comprises a cavity containing air which is maintained at a constant pressure by water at a higher level than the cavity, as air is withdrawn a corresponding amount of water replaces it. In the latter the air is supplied by a compressor arid maintained between a maximum and minimum storage pressure. In order to increase the constant pressure energy storage system without increasing the depth of the cavity the present invention provides a cavity 8 for receiving compressed gas and a liquid, a compressor, a supply reservoir 22 and a pump 26 for the liquid to maintain the pressure of the gas as a supply of compressed gas is drawn off. Preferably, the liquid pump is a pump- turbine alternatively in another embodiment the liquid is taken from a natural reservoir such as a lake or river 37. The gas may be an inert gas like Helium. (Figs. 3 and 4). <IMAGE>
Patent GB-2041024-A (GB)
Title: A Modular Net Component for Use in Towing Icebergs
IPC: B63B38/00
Filed: 1979-01-25
Abstract: A pair of short vertical posts (12) are interconnected by a plurality of long horizontal straps (14). Cross- straps (16) hold the horizontal straps apart at regular intervals. The posts have end fastening means (26,27) for connection to other net components one above the other and lateral drawplates (24,25) for connection to other net components or to a cable for towing the net as a whole. <IMAGE>
Patent GB-2044830-A (GB)
Title: Latticed constructions
IPC: E04B1/19
Filed: 1979-03-24
Abstract: A construction module 10 comprises a lower stringer 13, and spaced apart upper stringers 11, 12. Horizontal struts 15 inter-connecting the upper stringers 11, 12, and inclined struts 14 connecting the upper stringers to lower stringer 13, define spaced pyramidal frames with their apices at the stringer 13. An end piece comprising struts 16 and an extension of the lower stringer 13 may be provided. The module is used for making up space frames and roof constructions. <IMAGE>
Patent GB-2045904-A (GB)
Title: Control of coke ovens
IPC: C10B33/10
Filed: 1979-03-26
Abstract: The problem of "heavy pushes" or "stickers" in commercial coke ovens can be avoided by determining the ratio  beta , the ratio of developed pressure on the wall of a test oven to the pressure exerted by the ram of the test oven when pushing a carbonisation charge with the test oven door shut, and then evaluating the predicted pushing force for any given coke oven using a given formula. Damage to the coke oven can largely be avoided.
Patent GB-2019237-A (GB)
Title: Process for dewatering fibrous waste
IPC: C02F11/125
Filed: 1979-03-28
Abstract: A fibrous organic waste such as sewage sludge is by passage through a screw press formed by a helical winding with a spacing of 0.0075 to 0.013 cm. having a porous outer wall (3). Rotary screw (4) pressurizes the waste and moves it to an outlet opening (12) at the end of the dewatering zone, and the screw periphery is spaced by 0.08 to 5 cm from the wall (3) so that a substantially unagitated layer of fibrous material derived from the waste is retained on the wall to act as a filter aid. <IMAGE>
Patent GB-2019825-A (GB)
Title: Process for stabilization of sodium percarbonate
IPC: C11D3/39
Filed: 1979-04-23
Abstract: Sodium percarbonate is stabilized by treatment with an aqueous solution of an alkaline earth metal salt, thus forming a thin layer of an alkaline earth metal carbonate on the surface. The treated sodium percarbonate is rendered less hygroscopic, but its solubility in water and specific oxygen content are maintained, in comparison with untreated sodium percarbonate.
Patent GB-2024203-A (GB)
Title: Process for preparing disodium iminodiacetate monohydrate
IPC: C07C227/00
Filed: 1979-05-04
Abstract: Disodium iminodiacetate monohydrate is more convenient to store and handle than the hexahyrate salt, and can be recovered from an aqueous solution of disodium- iminodiacetate or from a slurry of crystals of the hexahydrate in such solution by holding the solution at a temperature above about 65 DEG  at which the salt crystallizes as the monohydrate or by holding the slurry at a temperature above 65 DEG at which the hexahydrate crystals in equilibrium with the dissolved salt are converted to monohydrate.
Patent GB-2049165-A (GB)
Title: Dual beam spectrophotometer
IPC: G01J3/42
Filed: 1979-05-08
Abstract: An absorbance-measuring system for a dual-beam spectrophotometer (1) comprises a sample cell 19, a reference cell 16, a beam chopper disc (Fig. 2) and a logarithm circuit (33) for providing a signal proportional to logarithm of the composite signal containing reference pulses VR and sample pulses VS from a photomultiplier (17). A first sampling circuit (39) controlled by gating signals from a detector array 133 in association with an encoder disc 25 and a light source 132 and a second sampling circuit (40) produce signals proportional to log10 VR and to log10 VS. A difference circuit connected, as shown (47) produces signal proportional to the absorbance of the sample. Because low level signals prior to an amplifier (35) connected as shown follow a common path, error components due to low frequency noise and drift in the logarithm circuit (33) are common mode and cancel in the difference circuit (47). The system may further comprise (see Fig. 8) a calibration signal generator (75), log calibration signal sampling circuits (90, 91, 92), a control circuit (93, 94) for controlling the gain of the amplifier (35) and means (98, 99) for producing a signal fed back to the logarithm circuit (33) to compensate offset voltages. <IMAGE>
Patent GB-2025990-A (GB)
Title: Cross-linked carboxylic polymer and their use as thickening agents
IPC: C08F2/00
Filed: 1979-05-23
Abstract: The invention relates to new cross-linked copolymers containing carboxyl groups and especially useful as thickening agents for aqueous and organic solvents, which copolymers contain (A) 20 to 100% by weight of olefinically unsaturated carboxylic acids, (B) 0 to 80% by weight of at least one mono-olefinically unsaturated monomer copolymerizable with the components A and C, and (C) 0.1 to 4% by weight, calculated on the total quantity of monomers, of allyl monomer of the general formula   <IMAGE>   in which n=0, 1 or 2, m=1, 2 or 3, wherein n+m=3, R1=hydrogen, or an alkyl, alkoxyalkyl, haloalkyl, cycloalkyl, aryl, alkaryl, aralkyl or alkenyl radical, and R2 and R3, which may be the same or different, each represents hydrogen or an allyl, alkyl, cycloalkyl, aryl, aralkyl or alkaryl radical, wherein at least two of the radicals R1, R2 and R3  must be an allyl radical or a substituted allyl radical.
Patent GB-2026801-A (GB)
Title: Improvements in or relating to static content addressable memory cells
IPC: G11C15/04
Filed: 1979-06-22
Abstract: The invention relates to computer memories of the kind in which an item stored in a memory is accessed according to its information content rather than by a location address. Use is made of substrate fed logic (SFL) gates in constructing cells for a content addressable memory. Each cell comprises a bistable device 12 having two inputs connected each to the output of one of two input gates 8, 9, each of which itself has two inputs from control conductors DA, DB, WE; and the bistable device having, further, two outputs Q, Q, each connected to an input of one of two output gates 10, 11, which in turn are connected to the control conductors DA, DB and to output conductors WM, RA, RB. The control and output conductors permit information to be written into or read out from a cell. <IMAGE>
Patent GB-2030219-A (GB)
Title: Fuel injection nozzles
IPC: F02M55/00
Filed: 1979-07-26
Abstract: A fuel pressure actuated valve member 12 is slidable in a bore 11 and engaged by a piston 18 slidable in a cylinder 17 of smaller diameter than the bore and connected thereto, the space defined between the piston and valve member communicating by way of a non-return valve 19 with the end of the cylinder remote from the bore. In operation leakage fuel is displaced from said space past the non-return valve and the pressure in the end of the cylinder remote from the bore rises to increase the force acting to maintain the valve member in the closed position. <IMAGE>
Patent GB-2032168-A (GB)
Title: Charged Particle Excited Laser Amplifier Apparatus
IPC: H01S3/09
Filed: 1979-09-06
Abstract: A focussed beam, pulsed laser amplifier system for producing single or double pulse outputs of very high peak power, the system comprising two or more beam reflecting mirrors, with two confocal reflecting mirrors (6.6a) defining a focal volume (5) in which the laser pulse to be amplified is excited with appropriately synchronised electron and ion pulses (2.3) under conditions of charge neutrality, the excitation pulses of electrons and ions being generated and energised within the system prior to their injection into the laser pulse propagating to and fro through the excitation region. The gain of the amplifier is proportional to the square of the laser wavelength. <IMAGE>
Patent GB-2034896-A (GB)
Title: A moisture sensor
IPC: D06F34/08
Filed: 1979-10-04
Abstract: A moisture sensor, especially for the determination of the moisture content of the drying air of a laundry drier comprises at least two discrete electrical conductor tracks (4, 5), which are arranged on an insulating material carrier (6) and coated by a moisture-absorbing covering layer (8) having a variable electrical resistance. <IMAGE>
Patent GB-2049301-A (GB)
Title: Drive unit for flexshaft vibrators
IPC: H02K1/18
Filed: 1980-01-09
Abstract: A drive motor for a flexible drive shaft 28 of an internal vibrator or some other device (not illustrated) potentially the source of an electrical shock comprises a cylindrical field assembly 50 which is releasably slip-fitted in a cylindrical shell 52, and an armature assembly 10 including a commutator 14; and an end portion 22,26 of the motor shaft is of insulating material to provide an electrically non-conductive coupling for driving the device to be powered. The shaft is mounted in bearings 18,20 in non-conductive material forming part of end covers for said cylindrical shell. The end covers are slotted, and fan blades 19 are fixed to said shaft to produce a cooling flow of air. The drive unit also embodies rubber, motor mounts 70, ring-shaped base portions of which seat about and are contained to the shell 52 by electrically nonconductive end covers. Projecting radially from the ring-shaped base portions are arms spaced by tube elements which provide electrically insulated hand holes 92 for said drive unit. <IMAGE>
Patent GB-2042687-A (GB)
Title: Steam Turbine Control Valve
IPC: F16K39/02
Filed: 1980-01-23
Abstract: Before the valve closure member 14 leaves its seat, inlet ports 37 in the member are uncovered by movement of a further member 30 having a lost- motion connection with the closure member. Flow through the ports 37 passes out through further ports 38 to the valve outlet 12. Thus the pressure difference is reduced across the closure member so that when the closure member leaves the seat, flow adheres to the curved wall 13 of the seat whereby jet-flow interaction and noise are eliminated. <IMAGE>
Patent GB-2047868-A (GB)
Title: Heating Device
IPC: F16L11/12
Filed: 1980-03-25
Abstract: A heater unit 1 which includes a fan and a combustion or electric heat source, for the supply of heated air has a collapsible hose device connected thereto. The collapsible hose device shown includes a portion 6 enclosing the unit 1 and from which extend an outlet arm 8 for the heated air and an air inlet arm 7. The hose arms are each provided with a series of perforations 9, 10 along their length to allow a controlled leakage of warm air from the outlet and ingress of fresh air to the heating device if the end of the inlet arm is blocked. The hose may be formed from a flat strip the edges of which are connected together, e.g. by open type zippers, to provide the perforations. The hose may incorporate flexible reinforcing to allow it to bend readily whilst resisting collapse when in use. <IMAGE>
Patent GB-2072866-A (GB)
Title: Photographic Surveillance Film
IPC: G03C5/12
Filed: 1980-04-02
Abstract: A surveillance film is described which has an optically transparent support base which is coated on both sides with a silver halide emulsion layer. There is between the emulsion layers on opposite sides of the support base either one anti-halation underlayer on one side of the base or two anti-halation underlayers, one on each side of the support base. The density of the anti-halation underlayer(s) is sufficient to prevent light which exposes the silver halide emulsion layer on one side of the support base from exposing the silver halide emulsion layer on the other side of the support base. The anti-halation dyes are readily dischargeable by alkali metal sulphite. Since large lengths of film are used in surveillance work of which only an occasional frame needs to be developed, the use of the above design of film assembly reduces the use of expensive film base by half. The silver is easily recoverable.
Patent GB-2048662-A (GB)
Title: Armrest for seat in vehicle
IPC: B60N2/90
Filed: 1980-04-21
Abstract: An armrest (1) for a seat in vehicle including a hard resin blow moulded hollow core (5) having recesses (6 to 10) formed on opposing walls thereof, bottom walls of the recesses being joined together (at 22), and through holes (12) are bored across the thus joined bottom walls of the recesses (6 to 10). A foamed pad (14) encloses the core (5), and the pad (14) is enclosed by a covering member (18). <IMAGE>
Patent GB-2049794-A (GB)
Title: A Plug-in Lock
IPC: B62H5/14
Filed: 1980-05-01
Abstract: A lock, in particular for cycles, has a bolt 1 to lie between forks 6,7 with a cylinder lock 2 at least partly lying in a recess 8. The lock stator has a pin 11 passing through the bolt 1 to engage a longitudinal slot in a fixed housing 4 to prevent rotation of the stator in the bolt recess. A locking bolt 17, projects from the lock rotor through the stator and a closed slot in bolt 1, into an annular groove 18 in housing 4. Use of the correct key to turn the lock rotor aligns locking bolt 17 with the groove accommodating pin 11 so that the bolt 1 maybe withdrawn from housing 4. The length of bolt 1 may be adjusted by means of screw 22. <IMAGE>
Patent GB-2057684-A (GB)
Title: Method and Kit for Determination of Transaminases
IPC: C12Q1/52
Filed: 1980-07-17
Abstract: In a method for the determination of glutamic oxalacetic transaminase (GOT) and glutamic pyruvic transaminase (GPT) in a single sample there is effected a kinetic U.V. determination on the sample using as the specific aminoacid substrates for the said transaminases L- cysteinsulfinic acid and L-alanine, respectively, and the pyruvic acid produced being determined using lactic hydrogenase so providing a measure of both transaminase activities. The sample may be of plasma, serum or other biologically-derived material. The invention also includes a kit for use in the method comprising, as enzyme substrates, L-cysteinsulfinic acid and L-alanine, optionally together with instructions.
Patent GB-2055103-A (GB)
Title: 5-pyrimidinols and phosphorus esters thereof
IPC: A01N57/08
Filed: 1980-08-05
Abstract: Novel compounds have the formulas:   <IMAGE> wherein R is alkylcycloalkyl or cycloalkylalkyl having 4 to 6 carbon atoms; R' is hydrogen, alkyl or alkylthio of 1 to 3 carbons; R" is alkyl having 1 to 4 carbon atoms; X is oxygen or sulfur; and R"' is alkyl of 1 to 2 carbons, alkoxy, alkylthio or monoalkylamino, each with 1 to 4 carbon atoms, or phenyl. The novel 2-cycloalkylalkyl or alkylcycloalkyl pyrimidinols are used in preparing the phosphate compounds which are highly useful insecticides and are particularly valuable when applied to the soil, but are also useful applied to foliage of crops or trees. Especially good control is obtained of corn rootworm, black cutworm, European corn borer, and nematodes. The compounds are conveniently applied in the form of a composition containing a pesticidal carrier such as an inert solvent or a finely divided inert solid in which case the composition is preferably granulated. An effective application rate is in the range of 0.1 to 5 pounds per acre (0.112 to 5.6 kg/hectare) when soil incorporated, and 0.5 to 2000 ppm for foliar applications.
Patent GB-2081675-A (GB)
Title: Package
IPC: B65D75/28
Filed: 1980-08-14
Abstract: A package for books and like flat articles, comprises an inner, double folded carton envelope 1 and an outer protective cover of paper or like thin material 3 closing the edges of the carton envelope. Each one of the two opposite open edges of the carton envelope 1 is closed by means of two flaps 4, 4' on the protective cover, the flap 4' being folded between the carton envelope and the protective cover, and the flap 4 being folded over the outer side of the protective cover. The third open edge of the carton envelope is closed by means of double folded closing flap formed on the protective cover. <IMAGE>
Patent GB-2068521-A (GB)
Title: Receptacle
IPC: A47J41/00
Filed: 1980-09-23
Abstract: A container 11 is provided with a surrounding receptacle 10 comprising a base 14, and upstanding side walling 15 provided with a cut-out (20, Fig. 1) for accommodating a dispensing tap (12) of the container 11. Lips (21) at each side of the cut- out seal with the wall of the container 10, and the receptacle 10 defines, around the container 11, an annular space 19 for accommodating a coolant in the form of sealed bags 22 of freezable liquid. The receptacle may be formed integrally with the container. <IMAGE>
Patent GB-2065466-A (GB)
Title: Pneumatic bed assembly
IPC: A47C27/08
Filed: 1980-09-24
Abstract: The bed assembly 10a includes an air mattress 32a which has an overall firmness determined by the amount of air in it. A port for admitting and releasing air to and from the air mattress 32a is formed through the air mattress 32a. A box spring support structure 12a holds the air mattress above a surface. A mechanism 44a is provided for adjusting the air pressure in the air mattress. The adjusting mechanism 44a includes a bladder or balloon 48a-54a for containing a quantity of air and means for transferring air between the air mattress 32a and the bladder 48a-54a to adjust the relative volume of the air mattress and the bladder. The adjusting mechanism 44a sets the internal volume of the bladder 48a-54a at a desired volume in order to set the relative quantity of air between the air mattress 32a and the bladder 48a-54a and total volume of the combined air mattress 32a and bladder 48a-54a. Water-filled or foam mattresses may be used in addition to the air mattress (see Figs. 5, 6, not shown), and in another embodiment, Figs. 11 to 15 (not shown) a hand-operated pump is used to adjust the pressure in the mattress. <IMAGE>
Patent GB-2087607-A (GB)
Title: Computer-based control system
IPC: G06F11/00
Filed: 1980-11-06
Abstract: In order to prevent indeterminate operation of a microprocessor-based control system when a nonexistent address is called, the data lines are strapped to high level or low level lines by impedance elements whose impedance is high in comparison with the load loaded impedance of the lines and low in comparison with the non- loaded impedance. <IMAGE>
Patent GB-2067370-A (GB)
Title: Electric motor start up control
IPC: H02P1/44
Filed: 1980-12-16
Abstract: Apparatus is disclosed comprising an electric motor (10), a device which is driven by the motor and which imposes the imposed load during a motor start (22, 36) operative during the motor start up period to reduce the current supplied to the motor, and control means (31, 32, 35, 39) to sense the end of the motor start up period and in response thereto to cut out the load reduction means and to cause the current varying means to cease current reduction. The control means may be responsive to a back EMF generated by the motor and may be electronic or electromechanical. The current varying means may comprise a resistor (22) in series with a main winding of the motor or may be a triac. The apparatus has particular application to electric motor driven compressors of refrigerant fluid. <IMAGE>
Patent GB-2061578-A (GB)
Title: Data transmission system
IPC: G07C9/00
Filed: 1980-05-30
Abstract: In a data transmission system comprising at least a data bank, data may be called from a subscriber station. In order that first data may be called by a first circle of authorized subscribers and that other data may be called only by a second circle of authorized subscriber, the subscriber station has a read out apparatus which authorizes the data call only when the data which may be read out from an authorization card to be inserted in the apparatus fulfil predetermined testing criteria.
Patent GB-2070489-A (GB)
Title: Intermediate workpiece supporting in crankshaft or camshaft milling
IPC: B23Q1/76
Filed: 1981-02-03
Abstract: During milling of crankshafts or camshafts, the workpiece 12 is gripped at both ends and is supported at at least one intermediate point. To eliminate the need for a straightening operation after milling and to minimize the grinding allowances for any subsequent grinding, the shaft is gripped at the intermediate point in the position which it actually assumes without centring. Each cylindrical portion of the shaft is machined while the shaft is gripped in such position. Hydraulically actuated jaws 3, 3a grip the workpiece and are coupled by a common hydraulic circuit 5, 5a. The jaws 3 can hold a stationary workpiece, or the jaws 3a are on a rotary ring 8 for workpiece rotation. The jaws are clamped 6, 6a in position. <IMAGE>