baber/WOPTO huggingface dataset:
Patent GB-600210-A (GB)
Title: Improvements in the control of moisture content in sands used for moulding
IPC: B22C5/08
Filed: 1945-06-06
Abstract: 600,210. Testing physical qualities of materials. GLACIER METAL CO., Ltd., and LIDDIARD, P. D. June 6, 1945, No. 14250. [Class 106 (ii)] [Also in Group II] In order to determine the quantity of water required to be added to moulding sand to increase its moisture content to that desired, the electrical conductivity and hence the moisture content is measured and then the relation between the quantities of sand and water is adjusted. A pair of conductor plates 1, 2 may be embedded in the sand and arranged in series with a source 3 of E.M.F., a rheostat 7 and a galvanometer 4, the said plates being bridged by a circuit including a switch 5 and a fixed resistance 6. The rheostat can be calibrated in percentages of water. As the E.M.F. of 3, which may consist of two dry cells, -may fall, this is tested by closing the switch 5 when there is no sand between the plates 1, 2 and adjusting the rheostat 7 to bring the meter 4 back to its original reading. The plates 1, 2 may be arranged in a box 8 having hinged bottom boards 9 and adjustable balance weights 11 so that the box empties automatically when a predetermined weight of sand has been delivered to it. The box 8 may carry a vibrator to ensure complete discharge. The opening of the bottom may actuate a switch 13 and solenoid-operated valve 14 to discharge the water from a tank 15 into a tank 16 from which it drips on to the sand being delivered continuously to the box 8. If the indicated moisture content is incorrect, the weights 11 are adjusted or the volume of water delivered from the tank 15 is altered by adjusting the ball 19 of the valve 17. If desired, the meter 4 may be arranged to make these adjustments through electrical and mechanical means.
Patent GB-1395471-A (GB)
Title: Methods of testing characteristics of magnetic signal recording  equipment and apparatus for effecting said methods
IPC: G11B5/56
Filed: 1973-03-23
Abstract: 1395471 Test records for aligning magnetic heads M L LJUDMIRSKY G M FORSHTATOR and Y S SHKUROVICH 23 March 1973 14255/73 Heading G5R A test signal 8 is recorded on a track on a tape or other magnetic record 1, the track having two portions 4, 5 of which the edges nearer to an edge 6 of the record 1 are mutually laterally displaced so that the distance a from the record edge 6 to the track portion 4 is equal to the minimum permissible distance from the edge 6 to the further end of the operative gap (7), Fig. 2 (not shown), of a magnetic head, the corresponding distance b for the track portion 5 being equal to the maximum such permissible distance. The head is laterally aligned to produce an output from track portion 4 but not from portion 5.
Patent GB-1508076-A (GB)
Title: Ceiling fan
IPC: F04D25/06
Filed: 1976-04-08
Abstract: 1508076 Axial-flow fans SANYO ELECTRIC CO Ltd 8 April 1976 [17 April 1975 8 Aug 1975 22 Aug 1975 29 Aug 1975] 14320/76 Heading F1C [Also in Division H1] In a ceiling fan comprising a cover 8, Fig.2, provided with a motor rotor 6 and fan blades 12, a motor stator 5 fixed to a cylindrical vertical fixed shaft 15 which enters through the centre of the stator, a protecting member 25 mounted on the lower end of the shaft has a portion which extends below the stator winding 4. During assembly, portions 26 of the member 25 serve as legs to keep the stator 5 away from the bench and thereby protect the stator winding 4 from damage. After a lower cover 10 has been fixed to the fan, the leg portions 26 serve to limit the deflection suffered by the lower cover when the fan is stood on the floor, whereby the lower cover can spring back to its original shape when the fan is lifted from the floor. A terminal block 31 and a phase-splitting capacitor 29 for the motor are carried by a member 32 which connects the fixed shaft 15 to a suspension tube 34. The shaft 15 is hollow and the motor leads 14 are passed through it. Spacer sleeves 18, 19, 20 ensure accurate axial location of the bearings 17. The member 25 may support a reflector 105, Fig.7, and a fluorescent lamp 106. The translucent lower case 108 may have a central spigot 109 by which it is supported by the reflector 105, the spigot being screwed into a threaded hole 110 in the reflector. In the ceiling fan shown in Fig.17, the member 25 supports a lamp 204, a switch 301 operated by a pull cord 153, and a translucent cover 255. The switch (see Division H1) is arranged so that the lamp is switched on and off at alternate pulls of the cord 153, while the motor speed is changed (via tappings on the stator winding) at every second pull.
Patent GB-1284988-A (GB)
Title: Improvements in or relating to circuits for detecting changes in electrical impedance of atransducer at a remote point
IPC: G01R31/11
Filed: 1970-03-24
Abstract: 1284988 Electro-physical measurementsliquid level, speed, temperature: measuring capacitance CENTRAL ELECTRICITY GENERATING BOARD and J P REID 3 May 1971 [24 March 1970] 14328/70 Headings G1N and G1U Small impedance changes (e.g. 5pF) in a transducer 10, Fig.1, at the end of a long (e.g. 300ft) line are measured by sending an r.f. signal down the line and examining changes in the reflected signal, this being extracted by a differential amplifier 19 which receives the sum of the transmitted signal and the reflected signal on one input 18, and the transmitted signal by itself on a second input 20. The output of the differential amplifier is rectified 23 and can be used to drive a Schmitt trigger 24 which will respond when the impedance rises above a pre-set threshold level. The variable impedance may be capacitive, as shown, inductive or resistive. In each case it is tuned, by the addition of suitable components, to resonate at the transmitted frequency when in its datum condition. Thus the capacitive transducer 10 shown is associated with a coil 11 so chosen that when the transducer exhibits its data capacitance it resonates with the coil thereby terminating the line in its characteristic impedance, and in this state there is no reflected wave. However a small change is capacitance moves the load out of resonance and reflections occur. For example if the capacitance is 25pF at resonance, a change of 2À4pF will cause the reflection coefficient to rise from zero to 0À58, using a 5Mc/s signal and a coil of 40ÁH. Subtraction of the transmitted signal from the sum of the transmitted signal and the reflected signal may be performed by a bridge Fig.3 (not shown) but lower sensitivity results. A plurality of the systems shown in Fig.1 may be arranged to share a common oscillator, Fig.2 (not shown). The transducer may respond to liquid level, or two such transducers may respond to a difference in liquid level. Alternatively, a temperature may be measured by using either a capacitor with a temperature responsive di-electric, or a coil with a temperature responsive coil or a thermistor, or the arrangement may be used to produce one output pulse for each revolution of a shaft the shaft carrying a stripe of paint which affects the permittivity of the space between it and a neighbouring fixed electrode.
Patent GB-668317-A (GB)
Title: A new or improved device for severing lengths of metal strip
Inventor: SAYER ARTHUR LEON
IPC: B23D21/00
Filed: 1949-05-28
Abstract: 668,317. Shearing. HARRISON (BIR. MINGHAM), Ltd. May 26, 1950 [May 28, 1949], No. 14334/49. Class 83 (iv). In a machine for severing curtain rail and other sections an apertured cutter 15 held in a body 13 secured to a bench co-operates with an apertured cutter 25 secured by screws to a slide 20 guided by the body 13 and actuated for rectilinear movement by a blow on a head 23. The cutter 15 holds the section in an inclined position. The cutters comprise semi-circular members removable from the slide 20 and body 13.
Patent GB-119109-A (GB)
Title: Improvements relating to Toothed Reducing Gearing.
IPC: F16C3/02
Filed: 1917-10-04
Abstract: 119,109. Brown & Sons, D., and Sykes, A. Oct. 4, 1917. Toothed gearing.-In order to reduce torsional deflection, neutralized end thrusts, and give a uniform distribution of the load in helical and other toothed reduction gearing for turbines &c., the shaft of a long pinion is made hollow to receive an internal driving-shaft coupled to the turbine, and the driving-shaft is coupled to the pinion shaft at each end of the latter, or at two intermediate points, by oppositely directed helical or other inclined teeth. In the arrangement shown in Figs. 1 and 2, the pinion shaft a carrying the pinion sections b is driven at each end by oppositely inclined helical couplings k from the internal shaft h. The shaft h, as shown in Fig. 2, is driven from the turbine shaft c by a straighttoothed coupling l, d, i which is also provided with helical teeth k meshing with helical teeth in the flanges m, n keyed to each end of the pinion shaft a. A modification is described in which two flanges, equivalent to i, are coupled to two flanges equivalent to m by radial teeth with inclined sides. In the arrangement, shown in Fig. 6, the internal shaft h is connected to the pinion shaft a at two intermediate points by helical teeth t. The shaft h may be integral with or rigidly connected to the turbine shaft.
Patent GB-1213966-A (GB)
Title: Improvements to relays, electromagnets and similar devices
IPC: H01H50/24
Filed: 1969-03-19
Abstract: 1,213,966. Electromagnetic actuators; electromagnetic relays; electric selectors. INTERNATIONAL STANDARD ELECTRIC CORP. 19 March, 1969 [28 March, 1968], No. 14396/69. Headings H1L, H1N and H1P. The frequency of vibration of the armature of an actuator is reduced by forming it in two or more parts associated over their major faces but not rigidly connected together. As shown, Fig. 3, the armature of an actuator suitable for operation of a cross bar switch or relay, comprises two members 10, 11 which replace a similarly shaped and dimensioned onepiece armature of a known arrangement, Pigs. 1 and 2 (not shown). When energized, member 10 pivots about lug 12 and strikes the coil core setting up high-frequency vibrations, member 11 simultaneously pivots and strikes member 10 also setting up high-frequency vibrations, and the armature parts then stick together the two high-frequency vibrations combining to form a low beat frequency. This is said to reduce the chance of breaking the armature. The armature parts may be held together by an elastic member, e.g. a clip. The armature may be divided into more than two similar parts. The armature of a plunger style actuator may be subdivided along its length, and such an armature may be rectangular, Fig. 4 (not shown), or circular in cross-section.
Patent GB-543622-A (GB)
Title: Improvements in or relating to thermostatically controlled water heaters
IPC: F24D1/00
Filed: 1940-09-23
Abstract: 543,622. Heating water. ROYLES, Ltd., and ROYLE, A. G. Sept. 23,1940, No. 14450. [Classes 64 (i) and 64 (iii)] In a water heater heated by a steam coil 12 or by gas or electricity, to prevent overheating of the water, a relief valve 29 at the water outlet end 16 of the heater is opened by a thermostat 17 when the water exceeds a predetermined temperature to allow cold water to enter the lower end of the heater. The thermostat first closes a spring-pressed valve 21 at the inlet end of the steam coil when the desired water temperature is reached, and upon a further rise of temperature the thermostat opens the water relief valve against the closing pressure of a spring 30. Water may be taken from the lower part of the heater to the relief valve through a tube encircling the thermostat. Separate thermostats may be provided to operate the relief valve and the steam, gas or electricity supply. The valve 29 may also serve as a pressure relief valve.
Patent GB-406634-A (GB)
Title: High ohmic regulating resistances
IPC: H01C17/24
Filed: 1932-05-21
Abstract: 406,634. Regulating-switches. ELEKTRISCHE GLUHLAMPENFABRIKEN J. KREMENEZKY AKT.-GES., 55, Dresdnerstrasse, Vienna. May 21, 1932, No. 14514. Void [Abridged as open to inspection under Sect. 91 of the Acts, May 23, 1932]. [Class 38 (v).] A variable high resistance consists of an insulating carrier with a coating of resistance material which has a number of interruptions so that the path of the current is lengthened. A cylindrical carrier 1, Fig. 1, of porcelain, soapstone &c. has a layer of resistance material 2 uniformly coated thereon and afterwards interrupted by scratches 3, Fig. 3, to lengthen the path of the current. Contacts 4, formed of rivets, are arranged about the lower circuinference of the cylinder 1, and are engaged by a contact 5 rotatable about an axis 6. The rivets 4 may be carried by a strip 9 of insulating material. The interruptions 3 may be unequally spaced in order that the resistance may vary in accordance with a logarithmic or other non-linear law. Alternatively the interruptions may be equally spaced but of unequal lengths. In a modification, Fig. 6, a further interruption 8, which may be in the form of a logarithmic curve, may be made as shown. The resistance layer may be protected by a coating of varnish. The resistance layer may have a terminal at one end, the other terminal being connected to the spindle 6, or the resistance layer may have a terminal at each end to form a potentiometer resistance. The interruptions 3, 8 may alternatively be formed by providing the carrier with notches or depressions. The resistance material does not adhere to these engraved portions when it is rubbed on to the carrier.
Patent GB-202427-A (GB)
Title: Improvements in or relating to electro-magnetically controlled switching apparatus
IPC: H01H33/86
Filed: 1922-05-23
Abstract: 202,427. Creed & Co., Ltd., and Creed, F. G. May 23, 1922. Keying systems and apparatus.-In switching apparatus which can be used as a key in transmitting apparatus, a relay n is associated with say a wheatstone transmitter and controls an air engine m which operates switch contacts a, d in the high tension circuit.
Patent GB-1007397-A (GB)
Title: Improvements in or relating to nitrocellulose lacquers
IPC: C08L1/18
Filed: 1964-04-08
Abstract: A lacquer comprises an organic solvent solution of nitrocellulose and a copolymer of ethylene and an ethylenically unsaturated ester of a saturated fatty acid, the copolymer comprising at least 36% by weight of the ester and being present in the proportion of 20-80% by weight, based on the combined weight of the nitrocellulose and the copolymer, especially 35-65%.  Preferably the copolymer is an ethyllene-vinyl acetate copolymer.  Other suitable ethylenically unsaturated esters are listed.  Specified solvent mixtures include toluene, ethyl alcohol, butyl alcohol, ethyl acetate and butyl acetate and "Cellosolve" (Registered Trade Mark) acetate.  Dioctyl phthalate may also be present.  Specified pigments include titanium dioxide and phthalocyanine blue.  Specification 497,643 and U.S.A. Specifications 2,200,429, 2,394,960, 2,395,381, 2,703,794 and 2,734,375 are referred to.ALSO:Aluminium foil and paper are coated with a lacquer comprising an organic solvent solution of nitrocellulose and a copolymer of ethylene and an ethylenically unsaturated ester of a saturated fatty acid, the copolymer comprising at least 36% by weight of the ester and being present in the proportion of 20-80% by weight, based on the combined weight of the nitrocellulose and the copolymer, especially 35-65%.  Preferably the copolymer is an ethylene-vinyl acetate copolymer.  Other suitable ethylenically unsaturated esters are listed.  Specified solvent mixtures include toluene, ethyl alcohol, butyl alcohol, ethyl acetate and butyl acetate and "Cellosolve" (Registered Trade Mark) acetate. Dioctyl phthalate may also be present.  Specified pigments include titanium dioxide and phthalocyanine blue.  Application may be made by spraying, dipping, roller coating, spreading with a doctor blade or rod, or printing, followed by air drying at ambient or elevated temperature.  Aluminium foil which still retains traces of processing oils may be coated without prior removal of said oils.  The lacquers are also useful for other substrates including "Cellophane" (Registered Trade Mark), paperboard, cloth, leather, rubber, metal and wool.
Patent GB-1254378-A (GB)
Title: A textile machine having a creel for pull-off bobbins
IPC: D01H1/18
Filed: 1969-03-20
Abstract: 1,254,378. Creels. BARMAG BARMER MASCHINENFABRIK A.G. 20 March, 1969 [20 March, 1968], No. 14595/69. Heading D1J. A creel for supplying yarn to, for example, a false twist crimping machine, comprises bobbin frames 5 which can be moved between an upper normal working position (Fig. 1, left) and a lower loading working position (Fig. 1, right) relative to a carrying and guiding structure 4, 17, and can be locked in either position. Spring-loaded bolts 26 on the bobbin frame 5 are released by manual operation of a lever 44, and on reaching either end position spring into sockets 27, 28 on the supporting frame members 17. Release of the bolts 26 operates a microswitch to start a motor 56 (Fig. 6) in the appropriate direction to raise or lower the frame 5 by means of a cable 29, a further microswitch stopping the motor when the other end position is reached. As a safety device, a weight 62 operates switches 65 or 66 to shut off the motor if the microswitch fails to do so. The frame 5 may be counterbalanced and moved manually, or operated electrically, hydraulically or pneumatically. Each frame 5 supports supply and reserve bobbins for the corresponding section of the machine, so that the machine may be run continuously, the empty bobbins being replaced when convenient.
Patent GB-214115-A (GB)
Title: Improvements in or relating to planing machines
IPC: B23Q11/00
Filed: 1923-06-04
Abstract: 214,115. Ducke, C. June 4, 1923. Planing.-In a rotary-disc planing machine particularly intended for surfacing the wooden blocks used in stamping leather, chips are allowed to pass into spaces 35 of the knifeholder 3, thence by way of passages 36 to an annular space 11. The chips are then pushed by means of catches 37 to a discharge pipe (not shown) leading to the hollow machine base 16, or they may be drawn off by suction through a pipe 26 from the space 11. In this case a partition 18 is arranged parallel to and above the disc 1 carrying the knives. The tubular knives 4 are held by spring levers 6. In the case of flat knives 42, channels 39 are provided to take the chips.
Patent GB-150820-A (GB)
Title: Improvements in and relating to furnaces
IPC: F23H11/00
Filed: 1919-06-10
Abstract: 150,820. London Electric Supply Corporation, and Fox, A. G. June 10, 1919. Dampers; baffles.-In a furnace having a travelling grate, a downwardly inclined arch 4, Fig. 1, is arranged over the forward end of the grate, and an arch 7, substantially paraliel with the grate and provided with an upward extension 8, is arranged over the rear end. The gases from the fire pass through flues 5, 9, 10, the flue 5 being provided, if desired, with a pivoted damper 6 having forks 19, Fig. 3, adapted to engage with a pin or rod 20 secured to the plate 18. The damper is arranged in an air-tight casing provided with a door 24, and a curved shield 25 forms a closure between the chamber above the damper and the furnace when the damper is lowered. The damper is formed of refractory blocks secured by bolts 13 to a number of castiron casings 11, which are bolted together, and is raised and lowered by chains 21 passing over, and secured to, a rotatable roller 22. Specification 15488/93 is referred to.
Patent GB-311415-A (GB)
Title: Moulded paper or like containers for goods which exhibit or acquire an acid or alkaline reaction
IPC: D21J5/00
Filed: 1929-05-10
Abstract: 311,415. Dautwitz, W. May 11, 1928, [Convention date]. Non-metallic hollow-ware; linings, coatings, and coverings.-Moulded containers made by "couching" from paper pulp, wool pulp or the like are rendered acid- or alkali-resisting by having an appropriate acid- or alkali-neutralizing substance incorporated in the impregnating medium. For example, containers intended for soft soap may be impregnated with a solution of paraffin or other fat or wax in benzine, benzol, or the like, worked up into an emulsion with a small quantity, say 5 per cent, of acetic, lactic, or boric acid, a colloid such as latex or a gum solution being preferably added to stabilize the emulsion.
Patent GB-428417-A (GB)
Title: Improvements in or relating to compressors for gaseous fluids
IPC: F25B31/02
Filed: 1934-05-16
Abstract: 428,417. Lubricating. BOSCH AKT.- GES., R., 4, Militarstrasse, Stuttgart, Germany. May 16, 1934, No. 14729. Convention date, June 6, 1933. [Class 12 (iii)] [See also Groups XXVI, II, and XIII] In a refrigeration apparatus a compressor 14 is mounted upon a stationary shaft 18, and driven by an electric motor 12. Gas is discharged from a chamber 22 by way of passages 31 ... 34 into an annular chamber 35 in which lubricating oil contained in the gas is centrifugally separated out. Gas and liberated oil pass through a small outlet 36, at different angles, into the dome 11, the gas being led off to a condenser by way of a pipe 39. Gas enters the compressor through passages 27 ... 30.
Patent GB-927455-A (GB)
Title: Improvements relating to electrical coils
IPC: H02K3/26
Filed: 1960-04-27
Abstract: 927,455. Dynamo-electric machines. NORMACEM. April 27, 1960 [April 30, 1959], No. 14755/60. Class 35. A method of establishing connections 8a, 9a between laminar metal conductors 6 arranged on opposite sides of an annular insulating support 2 to form flat electric winding turns comprises interconnecting the inner and outer margins of the conductors by respective conductive rings, and forming notches 8, 9 through the rings at positions between adjacent conductors. The coils are applicable to rotary electric machines having a planar air gap which extends normal to the rotary axis of the machine, and as shown in Fig. 2, the rings 3 comprise weld metal or solder deposited on the metal blanks 1, 1 before or after formation of the sandwich and fused by a heating press or soldering iron the metal having a similar fusion temperature, e.g. 180‹ C. to the polymerization temperature of the synthetic resin forming the support 2. In other embodiments the rings are formed by electrolytical deposits on the peripheries of the sandwich or by autogenous welding of projecting edges of the blanks 1 at 4, Fig. 3, and the individual conductors held together by the rings, may be established before the blanks are cemented to the support 2.