baber/WOPTO huggingface dataset:
Patent GB-1236668-A (GB)
Title: Offset printing apparatus
Inventor: HERBERT WILLIAM CHARLES
IPC: B41F23/04
Filed: 1968-12-30
Abstract: 1,236,668. Printing apparatus. W. C. HERBERT Jnr. 30 Dec., 1968, No. 61621/68. Heading B6C. [Also in Division H5] Printed sheets held by grippers 31 on conveyer 22 are dried by an electrical heater 36. Heat shields 64, 66 limit heating to the area immediately adajcent to the heater 36. Preferably the heater 36 is a flow plate which produces infra-red radiation and comprises three heating elements. Apparatus for actuating the heater 36 from a three-phase electrical supply is described.
Patent GB-698431-A (GB)
Abstract: 698,431. Grinding or polishing lenses. GIBBS, H. E. Jan. 21, 1952 [Jan. 20, 1951], No. 1577/51. Class 60. Gyratory relative movement between a grinding or polishing tool and a work-holding tool is produced in an optical-surfacing machine by mounting one tool on the upper end of a spindle 16 and actuating the other tool by an arm 25 coupled by an adjustable-throw crank 22 to a spindle 12 driven at a higher speed than the spindle 16, the arm being guided for vertical and angular movement by vertically-spaced, coaxial rollers 29, 31 co-operating with parallel vertical surfaces 32. Both spindles are mounted in ball or roller bearings and the spindle 12 is directly driven by a Vee belt from an electric motor while the spindle 16 is driven by a belt from the spindle 12. The adjustable throw crank is slidably mounted in a slot 19 and carries a ball bearing 21 the outer race of which is coupled by trunnions 23 to a fork adjustably secured on one end of the arm 25. The latter is adjustably connected by collars 27 to a block 26 carrying the rollers 29, 31 which may be ball bearings. The grinding or polishing tool is preferably mounted on the spindle 16 and a finger 33 engages the lens holder to which pressure is applied by one or more springs 35 connected between the block 26 and a lever 36 mounted on a fixed pivot at 38. The lever carries a pawl 39 co-operating with a ratchet 40 so that the angular position of the lever and hence the tension of the springs can be adjusted. A rod 41 supports the arm 25 when the lens is being changed. For treating cylindrical lenses a holder is used having'opposed arms which are guided between forks 42 so that the movement of the holder is confined to one plane.
Patent GB-755401-A (GB)
Abstract: 755,401. Preventing corrosion. AMERICAN CYANAMID CO. Nov. 15, 1954 [Dec. 2, 1953], No. 32992/54. Class 123(1) Corrosion of containers or equipment of ferrous metal in contact with a surface active agent consisting of an aqueous dispersion of a dialkyl sulphosuccinate, for example, sodium dioctyl sulphosuccinate, is prevented by mixing with the dispersion an inhibitor consisting of aniline or a N, N-dialkylaniline in which the alkyl groups each contain from one to five carbon atoms. The amount of inhibitor added is at least 0.1 per cent and usually from 2 to 6 per cent by weight of the sulphosuccinate. The preferred inhibiting agent, which does not impair the wetting power of the surface active substance, is N, N-dimethyl aniline. Specification 446,568 [Group III] is referred to.
Patent GB-775067-A (GB)
Abstract: 775,067. Temple weft cutter for looms. VEREINIGTE SEIDENWEBEREIEN AKT.- GES. Oct. 20, 1955 [Oct. 23, 1954], No. 30041/55. Class 142 (2). Trailing weft ends entering the jaws of a temple cutter deflect a feeler whereby the cutters are operated electromagnetically. When a feeler 12, pivoted at 14, is deflected, contacts 16, 17 are closed and an electromagnet 20 is energised. The electromagnet attracts a resilient arm 4 carrying a cutter blade 5 and the weft is cut between the blade and an anvil 8. The feeler has two arms, one on each side of the blade 5, so that the cutter can be mounted at either side of the loom. A spring 29 returns the feeler against a stop 30. The contacts 16, 17 may be of silver. If the power supply is alternating current the blade 5 will oscillate. If direct current is used the arm 4 may carry interrupter contacts.
Patent GB-2001173-A (GB)
Title: Process and apparatus for measuring the temperature of a bath of molten metal
IPC: G01K11/00
Filed: 1978-06-23
Abstract: A process for measuring the temperature of a bath of molten metal comprises bringing a heat sensitive element into contact with the molten metal whereby the element, which comprises an electrically insulating material 1, is progressively destroyed by combustion when in contact with the bath. The duration of combustion of a predetermined length of this insulating material is measured from which duration the temperature of the bath can be ascertained. The duration is timed by means of electrodes 7, 8, 9 immersed within the insulating material which electrodes terminate at different levels therein and are used to activate or deactivate a counter for counting the pulses of a clock arrangement. <IMAGE>
Patent GB-2027620-A (GB)
Title: A method of producing metallic scaffold hooks
IPC: E04G1/15
Filed: 1978-08-10
Abstract: A method of producing metallic scaffold hooks each having a hook member extending from a body portion, which method comprises extruding an elongate member (2) having a first portion (4) which is provided with a concave recess (6) and a second portion (8) which projects from the first portion (4) substantially at right angles to the longitudinal axis of the concave recess (6), and cutting the elongate member (2) into separate pieces which form the scaffold hooks. <IMAGE>
Patent GB-2034469-A (GB)
Title: Thermostatic control
IPC: G05D23/32
Filed: 1978-11-07
Abstract: A thermostatic control, e.g. for an electric heater 1 comprises a fluid-filled temperature sensing bulb 7 connected by a capillary 8 to e.g. a bellows or diaphragm on a switch 5, and a capillary extension 9 of the bulb 7 which is located to respond to a temperature at a location away from the bulb. As shown the bulb is located at the air inlet of the heater and the extension at the air outlet; in this way the operating differential is reduced. A time-operated auxiliary heater 12 is associated with the bulb 7 to change the temperature setting. <IMAGE>
Patent GB-2007961-A (GB)
Title: Peanut spread
IPC: A23L25/10
Filed: 1978-11-09
Abstract: A peanut spread comprises an essentially homogeneous dispersion of finely divided peanut meat in a continuous oil phase, and has an oil content of from about 20 to 35% by total weight, and an oil-to-peanut protein ratio of from about 1:2 to 4:3 by weight. The spread is produced by low- medium shear agitation of ground roasted peanuts and roasted defatted peanut meat. The spread simulates the organoleptic and textural characteristics of peanut butter, while exhibiting a significant reduction from conventional oil and caloric contents. Other additives may be present, including non-peanut protein sources and vegetable oils, and fibre.
Patent GB-2039991-A (GB)
Title: Motor vehicle engine exhaust brake control system
IPC: F02D9/06
Filed: 1979-01-26
Abstract: Operation of a spring-biased exhaust brake switch 16 energises an electric motor 9 to rotate a 180 DEG  cam 8 and actuate a changeover switch 5 and move a fuel pump lever 11 from an ON to an OFF position. An electronic relay 21, including a thyristor 22, ensures that, irrespective of the time for which the exhaust brake switch is operated, a supply of current to the motor will be maintained for a time sufficient to ensure rotation of the cam and operation of the changeover switch to positions such that the system is ready for movement of the pump lever to the ON position whenever the exhaust brake switch is released. <IMAGE>
Patent GB-2014111-A (GB)
Title: Improved lifting device
IPC: B66C1/02
Filed: 1979-02-07
Abstract: Suction cups 26 on a beam 32 are connected to a vacuum generator 20 on a carriage 2 by way of lines 19, telescopic tube assembly 11, valves 22 and lines 21. The telescopic tube assembly permits the beam to be raised and lowered relative to the carriage by lifting gear. <IMAGE>
Patent GB-2016893-A (GB)
Title: A food product for human consumption obtained from soybean hulls a method of producing it
IPC: A23L11/30
Filed: 1979-02-08
Abstract: Extraction of soybean hulls with aqueous alcohol and removal of the aqueous alcohol extract from the extracted hulls renders the soybean hulls more palatable and thus suitable for use as a fibrous component of food. The alcohol is preferably methanol, ethanol or isopropanol.
Patent GB-2014351-A (GB)
Title: Improvements in and relating to plinths for turntables
IPC: G11B33/02
Filed: 1979-03-07
Abstract: A plinth is constructed from a laminate whose natural resonant frequency is outside the audio spectrum (i.e. 30-20,000 Hertz) and comprises a layer of dense metal lead) 14 sandwiched between layers of compressed particulate material (chipboard) 10 and 12. The turntable is driven by a d.c. electric motor energised from a power supply in a shielded housing located remotely from the turntable. <IMAGE>
Patent GB-2020481-A (GB)
Title: Gain stabilized microchannel plates
IPC: H01J43/24
Filed: 1979-04-05
Abstract: Microchannel plates having increased gain and improved aging characteristics are provided by forming a thin film of a cesium compound on the channel walls. In an embodiment, a surface film of cesium hydroxide is applied to the interior wall surfaces of an MCP by saturating the plate with a solution of the compound, then allowing the solvent to evaporate. The cesium hydroxide residue on the walls subsequently is converted to cesium oxide by a high temperature bake. Alternatively Cs may be incorporated in the glass of the c.p., suitably as a partial K replacement. Dimensions are exemplified and manufacture by drawing of glass fibers discussed.
Patent GB-2019888-A (GB)
Title: Reducing temper brittleness in steels
IPC: C21D1/26
Filed: 1979-05-15
Abstract: A method of reducing temper brittleness in low alloy steels (i.e. containing a total of 0.5 to 10% by weight of chromium, nickel, molybdenum, vanadium, manganese, titanium, cobalt or niobium) comprises adding to the steel at least one rare earth metal in a proportion within the range 0.8 to 2.0 times the weight percentage given by the formula:  RE = 8.7S + 2.3Sn + 4.5P wherein S, Sn and P represent the weight percentages of sulphur, tin and phosphorus respectively and RE represents the weight percentage of the rare earth metal expressed as its lanthanum equivalent. The rare earth metal is preferably lanthanum, but may be cerium or a mixture of rare earth metals. After addition the steel is preferably maintained at an elevated temperature for long enough to permit precipitation of the compounds formed. A temperature of 1100 DEG C maintained for 1-2 hours is usually suitable. Following this the steel may be tempered. The invention therefore provides a convenient method of reprocessing steel scrap containing otherwise deleterious amounts of these impurities.
Patent GB-2025612-A (GB)
Title: Determination of pyrolyzable material in air
IPC: G01N31/22
Filed: 1979-07-05
Abstract: An apparatus and method are disclosed, for measuring a material, eg. halothane, in a gas, e.g. air, using a pyrolysis unit (2) for pyrolysing the material in the gas, a detection device (3) for detecting the substance(s) produced during the pyrolysis, and a drier (1) for drying the gas before the pyrolysis device (2). This prevents moisture in the gas affecting the accuracy of the detection stage. <IMAGE>
Patent GB-2030419-A (GB)
Title: T.V. picture freeze system
IPC: H04N5/232
Filed: 1979-08-16
Abstract: A T.V. picture freeze system includes a store 15 for a video frame comprising first and second fields. Movement is detected between fields for each picture point by detector 23 and data indicative of any movement is stored in store 24 and controls read selector 18 so that, on read-out, the picture information is taken from a single field for those parts of the picture where movement has occurred and from both fields where movement has not occurred for that portion of the picture. Movement data may alternatively be stored with the video data in the store 15. By using such a system it is possible to obtain full vertical detail on those parts of the picture where no movement has occurred. <IMAGE>
Patent GB-2060421-A (GB)
Title: Mixing and conveying apparatus
IPC: B01F15/00
Filed: 1979-10-16
Abstract: Mixing and conveying apparatus has two helices in a container one helix (3) being located within the other (2) and both helices being mounted on a single shaft (1) and running in the same direction as each other but with the inner helix tapered from the input end, enlarging to the output end. Also, the inner helix has a longer pitch than the outer. An initial part (4) of the outer helix is of strip steel, the remainder being of round rod. In use, with the shaft inclined to the horizontal, a trough-like casing (5) around the lower regions of the helices is afforded by a flexible sheet secured releasably in position by clips. <IMAGE>
Patent GB-2045465-A (GB)
Title: Welding termination control system
IPC: B23K11/25
Filed: 1979-11-14
Abstract: A control system for terminating a spot weld operation upon the completion of a weld, comprises a current transducer for sensing the initiation of a weld and, responsive thereto, a delay network and a timer/ counter producing a signal that occurs within a half-cycle of welding current. The completion of the weld is sensed acoustically to drive a second signal which, together with the first signal, is fed to a gating means producing at coincidence a signal, terminating the weld operation.
Patent GB-2039170-A (GB)
Title: Overvoltage protection device
IPC: H02J7/16
Filed: 1980-01-03
Abstract: A device intended to provide protection against the overvoltages which may occur at the terminals of a rectified alternating current generator 2, is of the type comprising two branches connected in parallel, one of which comprises a zener diode 7, the other having a thyristor 9 controlled by the energising of the zener diode. For automatic de- energising of the thyristor an electronic circuit 10 is provided, connected in parallel to zener diode and thyristor and having an avalanche device 18, one terminal of which is connected to the base of a transistor 20, the emitting-collecting circuit of which is connected in parallel to the thyristor, the other terminal being connected to means for locking, controlling and feeding the avalanche device. As shown, the avalanche device is a diac, but in alternative arrangements it is a double-base transistor or an assembly of two transistors equivalent to a double-base transistor. <IMAGE>
Patent GB-2073946-A (GB)
Title: ???-Particle shielding of semiconductor device
IPC: H01L23/29
Filed: 1980-01-10
Abstract: Soft errors in semiconductor devices, e.g. random access memories, arising from the bombardment of the device by alpha particles produced by the disintegration of minute traces of uranium or thorium in the packaging materials are be prevented by coating the active surface 12 of the semiconductor chip with a thin layer 17, e.g. 20 to 100 microns, of an organic polymeric material, this layer 17 being of sufficent thickness to absorb the particles. Typically, the polymer is a poly-imide formed by u.v. electron-beam or thermal curing of liquid monomer applied to the chip surface. <IMAGE>
Patent GB-2041877-A (GB)
Title: Lifting Frame for Sacks
IPC: B65D19/38
Filed: 1980-01-28
Abstract: lifting frame for sacks has a central opening to receive the mouth of a sack. Loops at the top corners of the sack are engaged on a set of attachment devices on the frame around the opening. Each attachment device comprises a lug (22) hinged (24) to the frame and normally held horizontal by a cam member (25). The cam members are carried on a ring (26) which is rotatable to allow the lugs to hinge downwardly to release the sack loops. Latches (30) are pivoted (32) to the frame so as normally to depend in interaction with respective lugs (22) to retain the loops on the lugs. The latches are unidirectionally displaceable from said interaction to allow the loops to be engaged on the lugs. <IMAGE>
Patent GB-2043226-A (GB)
Title: A small refrigerator utilizable in motor vehicles equipped with an air conditioner
IPC: B60H1/00
Filed: 1980-02-08
Abstract: A small refrigerator, particularly for motor vehicles equipped with an air conditioner, comprising a chamber 3 provided with an access door 4 and at least one shutter-baffle device 6 by means of which it is possible to determine and regulate the inflow of air to the inside of the chamber 3 via an inlet mouth 2 with which the latter is provided, connected directly to the delivery duct of an air conditioner C installed in the motor vehicle. <IMAGE>
Patent GB-2047529-A (GB)
Title: An assembly element for the installation of a bath tub or shower basin
IPC: A47K3/16
Filed: 1980-03-05
Abstract: An assembly element for the installation of a bath tub or shower basin comprises a support frame (1) which is preferably rectangular in plan and has substantially vertical walls (2), the bath tub (11) etc being installed in the upper opening of the assembly element. Various other embodiments of the assembly element are described including a prefabricated unit assembled from panels and connectors. The support frame is constructed as an open- topped box with a continuous inwardly directed collar for supporting the tub etc. rim. The walls may have reinforcing ribs. <IMAGE>
Patent GB-2044853-A (GB)
Title: Axial flow slurry pump
IPC: F04D7/04
Filed: 1980-03-11
Abstract: A multi-section pipeline axial flow pump for pumping a large volume of slurry has inlet and outlet elbows 14, 16. A shaft 34 driven by a motor at one end or motors at both ends is journalled in bearings 32 mounted on the elbows. The shaft carries an inducer rotor, a low pressure section rotor with ten rings 80 of rotor blades, a high pressure section rotor also with ten rings of blades, and a downstream tapered boss streamlining flow into the outlet elbow. The inducer rotor comprises a row of flat angle, high solidity blades followed by a row of steep angle, low solidity blades cooperating with a row of downstream stator blades. In each of the low and high pressure sections, each stage is formed by a ring of rotor blades followed by a ring of stator blades. An intermediate shaft bearing between the high and low pressure sections is fed, like the bearings 32, with high pressure water to prevent ingress of slurry. <IMAGE>
Patent GB-2047164-A (GB)
Title: Laminated light-transmitting, fire- screening panel
IPC: B32B17/10
Filed: 1980-04-01
Abstract: In order to reduce entrapment of air during the formation of a laminated light transmitting fire-screening panel by sandwiching at least one layer of intumescent material between at least two plies of glazing material, the sandwich is assembled while there is present between the or each layer and any panel sheet element which is to be brought into contact therewith, an atmosphere which immediately prior to such contact consists at least in part of one or more materials which is the vapour phase of a solvent for the intumescent material e.g. steam, and the sandwich assembly is then subjected to heat and/or pressure to bond it together to form the laminate.
Patent GB-2047614-A (GB)
Title: Method and apparatus for preparing moulded wafers
IPC: A21B5/02
Filed: 1979-12-10
Abstract: Moulded wafer products are prepared by a novel process in novel apparatus from dough of high sugar content (25-60% w/w based on the farinaceous dough ingredient) by a two-stage process comprising initial baking of a light-textured water material (e.g. 2-3 mm thick), introducing the wafer while still hot (e.g. above 160-195 DEG C), into a cooling and compressing mould (3,4,5) of the apparatus, and compressing the wafer to reduce its wall thickness, e.g. by about 15-50%.
Patent GB-2060710-A (GB)
Title: Solar absorbing coating comprising iron tin alloy
IPC: C22C38/00
Filed: 1980-10-02
Abstract: A solar absorbing selective coating comprising an iron-tin alloy is formed by determining conventional tinplate to expose the FeSn2 layer. The layer may be coated with wax for corrosion protection and a solar fluid heater may be made from the detinned tinplate.
Patent GB-2059825-A (GB)
Title: Determining tool tip position
IPC: B23Q17/22
Filed: 1980-10-08
Abstract: A method of determining the position of a tool tip P with respect to a tool slide 22 of a numerically controlled lathe includes the steps of storing in the machine's data memory the co-ordinates of a fixed slide reference point R and the coordinates of a fixed measuring point D; determining the position of the measuring point by means of a sight through which the operator observes the tool, moving the tool slide so that the tool tip coincides with the measuring point and feeding the positional data of the tool slide in this position to the data memory, whereby the position of the tool tip with respect to the tool slide may be determined. <IMAGE>
Patent GB-2086552-A (GB)
Title: Cupola
IPC: F27B1/08
Filed: 1980-10-30
Abstract: The cupola has a shaft (1) accommodating about the perimeter of the bottom portion thereof a plurality of gas burners (3) with ducts for supplying a gas-air mixture. The height (h) and width (b) of each duct (4) of the burners (3) are selected to correspond to the diameter (D) of the shaft (1), from the ranges of 0.09 to 0.65 and 0.02 to 0.1 of this diameter (D). <IMAGE>
Patent GB-2090469-A (GB)
Title: Keyswitches
IPC: H01H1/58
Filed: 1980-12-29
Abstract: A keyswitch includes a tubular plunger with a rectangular body 8 slidably mounted in a rectangular housing 1 that has a bottom wall 2 provided in its top with a circular recess 13 receiving the lower end of a coil spring 12 extending up around a pair of upright spring contact strips 4, the lower ends of which are press fitted in the bottom wall 2. The inside of the plunger is provided with a cross member 17 that normally separates the upper ends of the contact strips 4, but permits them to engage each other when a keycap 15 on the upper end of the plunger is pushed down to lower the plunger. The plunger body 8 has legs 18 extending downwardly from its lower corners which engage the area of the housing between the plunger body 8 and bottom wall 2 of the housing while the plunger is in its upper position. The corners of the bottom wall 2 are provided with downwardly extending sockets 19 for receiving the plunger legs 18 when the keycap 15 is depressed. <IMAGE>
Patent GB-2068324-A (GB)
Title: Improvements in and relating to feed assemblies
IPC: A01C9/02
Filed: 1981-01-22
Abstract: A feed assembly comprising two relatively slow-moving feed belts 10, 11 (Fig. 1) which laterally convey rows of tubers in receptacles from a supply hopper 13 and over an inspection correction area to receptacles on downwardly-inclined cross-transfer planting belts 16, 17. <IMAGE>
Patent GB-2092531-A (GB)
Title: Cushion tyres
IPC: B60C7/12
Filed: 1981-02-10
Abstract: An insert for a pneumatic tyre in place of pressurized air comprises an annular member made of resilient material, which may have a Shore A hardness of 30-65, and provided with internal circumferential aperture(s), which may be dimensioned to define an empty volume from 0.1444 to 0.3136 of the total volume of the member, hardness and aperture size being chosen to simulate a preselected air pressure valve. The member has a central aperture, e.g. 66, and supplementary openings, e.g. 68, 70, can be provided. The outer surface of the member can be smooth or contoured, e.g. by circumferential ribs or grooves. The member may be of circular cross-section, Fig. 2, or shaped in cross-section similarly to a tyre, Fig. 5, and may be formed in arcuate segments connected end- to-end, e.g. by a spigot and socket arrangement. Reinforcement(s) may be provided in the member. <IMAGE>