baber/WOPTO huggingface dataset:
Patent GB-313500-A (GB)
Title: Radio system for aerial navigation
IPC: G01S19/49
Filed: 1929-06-12
Abstract: 313,500. Kolster - Brandes, Ltd., (Assignees of Kruesi, G. G.). June 12, 1928, [Convention date]. Aerials ; directive signalling to aircraft; modulating systems and apparatus ; bearings, determining.-In a method of indicating to an aeroplane the proximity of a landing area, and also the direction of its approach, a hollow field of electromagnetic radiation is directed upwardly from the area, separate portions of the field being differently modulated, and a solid field of radiation is situated within said hollow field. A circular aerial is placed in the focal axis of the reflector, 16, Fig. 3, of copper sheet or mesh, formed by the revolution of a parabola, with inclined axis 17, about a vertical axis 18, the latter being also the axis of a parabola reflector system 34 with an aerial 37 at its focus, which provides a central solid beam of radiation. To enable the angle of propagation of the hollow zone to be varied the reflector may be formed of a plurality of sections 42, Fig. 6, each provided with an arcuate gear segment 43 engaging roller gears 44, which are varied by rotatable shafts 46, mechanically connected together by flexible couplings 47. The aerial 19 is divided into a plurality of sections by means of reactive phase shifting means 21, Fig. 5, preferably consisting of an inductance 22 shunted by a capacitance 23. Each conductor section is preferably equal substantially to one half wavelength of the energy employed, or alternatively they may be loaded to decrease their length. The transmitting circuit 24 is preferably coupled to the medial portion of one of the sections, which constitutes a potential medial point, 'and the wavelength used is preferably substantially four times the focal length of the reflector or the latter may be an odd multiple of the former. The radiation from each section of the aerial may be given a characteristic modulation by coupling an absorption circuit 28 to its nodal point, consisting of a key 29, a periodically varying condenser or reactance 31, and a resistance 32, the key serving for code purposes, or the variable element 31 for modulating at different tone frequencies. The hollow zone of radiation is thus divided into sections characteristically modulated, while, the solid internal radiation field from the reflector 34, may also be modulated. The receiving aerial, Fig. 4, is designed to be independent of the polarization of the incoming waves, and consists of two perpendicular conductors 39, 40 connected at their centre points to a receiver 41.
Patent GB-1370567-A (GB)
Title: Thread tensioning device in a sewing machine
IPC: D05B47/00
Filed: 1972-04-19
Abstract: 1370567 Sewing machines UNION SPECIAL MASCHINENFABRIK GmbH 19 April 1972 [22 April 1971] 18055/72 Heading DIG In a thread tensioning device comprising two discs 1, 2, the pressure on one disc is increased each time a rotating permanent magnet 16 passes a magnetic control pin 9. The magnet is in a collar 15 clamped to the main shaft 18. One end of the control pin 9 is screwed into a shoe 13 carrying a disc 14, whilst the other end carries a web disc 11 which fits into a slot in a supporting rod 3 and presses against one disc. A nut 19 holds a ring of clamping material 21 e.g. rubber or a spring, against a disc. The disc 14 may be a ferrite, or the control pin 9 may carry a permanent magnet of opposite polarity to the rotating magnet, in which case the disc 14 is a non-magnetic material.
Patent GB-1010975-A (GB)
Title: Improvements in or relating to cushion supporting members
Inventor: GRIMSHAW NORMAN
IPC: A47C7/22
Filed: 1963-05-08
Abstract: 1,010,975. Cushion supports. VITA FOAM Ltd. May 8, 1964 [May 8, 1963], No. 18115/63. Heading A4M. A resilient, moulded cushion support 10, e.g. of rubber, having moulded-in, non- resilent frame attachment members located in spaced peripheral tongues 11 includes integral web portions 15 which fill the spaces between the attachment members whereby the support provides a continuous surface which extends to the surrounding frame to which it is attached. The attachment members may comprise U or V- shaped clips 12 (Fig. 2) having their free ends bent towards each other and provided with apertures 14 for engagement by attachment hooks. Alternatively (Fig. 4, not shown) the attachment members comprise moulded-in rods. In an alternative embodiment (Fig. 6) the web 15 extends outwardly of the tongues 11, and a continuous peripheral bead 16 is provided. A method of moulding the support 10 with moulded-in attachment members is described.
Patent GB-573089-A (GB)
Title: Improvements relating to bearings
IPC: F16C33/14
Filed: 1943-11-03
Abstract: 573,089. Alloys ; annealing. CONSTANTINE, W. W. (General Motors Corporation). Nov. 3, 1943, No. 18176. [Classes 72 and 82 (i)] To increase their resistance to failure at elevated temperatures, lead-base babbitt alloy bearings are homogenized by annealing at a temperature below, but approaching the initial melting-point, of the alloy for a time sufficient to cause the alloying ingredients to attain a condition of equilibrium, and then quenching the bearing to retain the homogeneous structure. Age-hardening may be accelerated by heating the quenched bearing at a temperature of about 100‹ C. for from 5 to 10 minutes. The alloy may be composed of 80 per cent or more lead, 10 per cent or less antimony, and 10 per cent or less tin, e.g. 92.25 per cent lead, 3.50 per cent antimony and 4.25 per cent tin.
Patent GB-1276617-A (GB)
Title: A disc brake having a mechanical slack adjuster and brake actuating mechanism
IPC: F16D65/14
Filed: 1970-04-16
Abstract: 1276617 Disc brakes; wear adjusters SOC ANON DBA 16 April 1970 [22 April 1969] 18218/70 Heading F2E A disc brake assembly includes a piston 12 slidably mounted in a cylinder 10, an automatic wear adjuster 20 located between the piston 12 and a rod 22 extending through the end wall 24 of the cylinder 10, the rod 22 having a flange portion 26 having cavities formed with ramps which receive balls 27 which are also received in cavities 29 in a flange portion 28 of a tubular member 48 rotatable by a lever 31 such that rotation of the rod 22 by means of a lever 30 causes piston 12 to move towards a disc 18 and apply a pad 16 thereto. A threaded sleeve 32 surrounds a threaded end portion 34 of the rod 22 which projects into the piston 12, and on sleeve 32 is wound a helical spring 44, one end 46 of which is anchored in piston 12. Levers 30, 31 are movable towards each other by means of a cable 56, and initially movement of levers 30, 31 causes the adjuster 20 to take up wear by movement of sleeve 32 until it abuts piston 12. The piston 12 is then movable to apply the pad 16 to the disc 18 by co-operation of the balls 27 and ramps. A needle thrust bearing 52 is included between the end wall 24 and the flange portion 28.
Patent GB-125357-A (GB)
Title: Improvements relating to Fluid Pressure Braking Apparatus.
Inventor: TURNER WALTER VICTOR
IPC: B60T15/46
Filed: 1918-11-07
Abstract: 125,357. Turner, W. V. April 8, 1918, [Convention date]. Fluid-pressure. -Relates to locomotive distributor valves which are controlled by the opposing pressures in the brake cylinder and an application chamber. To prevent the locomotive brakes from being applied before those on the train, the application movement of the brake cylinder supply and exhaust valve is delayed by a spring stop which is, however, prevented by the brake cylinder pressure from assisting the return movement of the valve until this pressure has fallen to a small amount. The valve mechanism shown comprises an equalizing piston 15 subject on one side to the pressure in train-pipe 14 and on the other to the pressure in application chamber 18 which is supplied through the groove 30. The piston 15 actuates a valve 19 which, in release, connects the application chamber 33 and the chamber 2 of the supply and release valve to the exhaust passage 35; and when the train-pipe pressure is reduced to apply the brakes, connect these chambers to the pressure chamber 18. The piston 3 actuates a brake cylinder exhaust valve 8, controlling exhaust port 36, and a supply valve 12 with a port 41, the air being supplied from the main reservoir 11 to the brake cylinder 7 by way of the passage 5. The spring stop comprises a piston 21 normally in contact with the stem 22 of the piston 3 and enclosing a spring 24 which abuts also against a second piston 23 between which and a cap 40 a stronger spring 25 is interposed. The springs are put under initial compression respectively by the bolt 39 and the screw cap 40. When, in applying the brakes, pressure air is admitted to the chamber 2, the lighter spring 24 is first compressed and the exhaust valve 8 is closed, but the supply port 41 is not uncovered until the pressure has risen sufficiently to overcome the spring 25. When the brake cylinder pressure reaches a predetermined value it is sufficient to retain the pistons 21, 23 in their extreme positions so that the springs do not influence further increases of this pressure. In releasing the brakes, the piston 3 moves back to open the exhaust valve 8, the spring stop at first remaining compressed. As the brake cylinder pressure falls, the spring 25 expands, the spring 24 remaining compressed by brake cylinder pressure acting on piston 21. When that pressure has reached a low value, the spring 24 finally returns the piston 21 and ensures the return of the valve to the full release position.
Patent GB-1467900-A (GB)
Title: Educational kit for teaching about at least one electrical meter
IPC: G09B5/06
Filed: 1974-04-26
Abstract: 1467900 Educational appliances XEROX CORP 26 April 1974 [27 April 1973] 18442/74 Heading G5G Educational apparatus comprises a board 10 bearing on its surface a diagram 11 representing an incomplete electrical circuit including a plurality of broken portions identified by letters such as E, D, X, F &c. as shown; a plurality of jack sockets 12 associated with the diagram and interconnected on the back of the board to define the incomplete circuit; jack sockets 13, 14 to which a power source may be connected; at least one resistor such as R1, R2, R3 provided with two probes so that it can be inserted into certain of the sockets 12 to bridge a broken portion of the circuit; and audio-visual instruction means, e.g. an audio tape with associated slides or film strips and worksheets, for presenting to a student programmed information relating to electrical meters and for directing the student in using the board to set up different circuit arrangements and to carry out electrical measurements with various meters. Further sockets 16, 17 and 18, 19 may be provided.
Patent GB-1344203-A (GB)
Title: Digital data processing systems
IPC: G06F9/40
Filed: 1972-04-20
Abstract: 1344203 Digital data pressing COMPAGNIE INTERNATIONALE POUR L'INFORMATIQUE 20 April 1972 [21 April 1971] 18451/72 Heading G4A The address of the zone of a store M allotted to a programme is entered into a base code register G, this address being added to (1) the addresses of the instruction and data words of the programme, during programme translation, and (2) the addresses of parameters and variables during a re-entrance operation concerning a sub-routine called for by the programme, address codes relating to invariants in the sub-routine remaining unmodified.  During programme translation, an appropriate instruction in register Mo results in the base code for the translation being read from fast access store M via register REL into register G. Each instruction is also read into register Mo to provide an output tag C which sets a bi-stable B to its "T" state to enable, via OR- gate OU, gate P2 so that the address AIN from a counter CO or an operand address code AOP is added to the address in the base code register G, the modified address being read into register RA. During sub-routine re-entry, bi-stable B is set to its "R" state so that gate P2 is blocked unless gate P1 is enabled by a tag code during the time when any data relating to the programme which called for the sub-routine is expected. This data is then entered into the zone determined by the contents of the register G, other data being entered at the address applied at terminal A.
Patent GB-912729-A (GB)
Title: Improved photoelectric trichromatic colorimeter and fluorimeter
IPC: G01J3/46
Filed: 1961-05-23
Abstract: 912,729. Photo-electric colorimeters and fluorimeters. HARRISON, W. Sept. 29, 1961 [May 23, 1961], No. 18485/61. Class 40 (3). In a combined colorimeter and fluorimeter two radiation sources are provided, each being a miniature fluorescent tube of, for example, 9- inch length and 6-watt dissipation. One tube T1 is of the " colour matching " or " northlight "  type and the other T2 has an ultra-violet radiation emitting phosphor. If necessary tube T2 is enclosed in a black ultra-violet transmitting cylinder. Light from one or both tubes falls on the test sample S and the radiation r from the sample passes through an aperture B, through one of the filters F in filter wheel W, and to a photo E.M.F. cell P coupled to a suitable galvanometer. The screen containing the aperture B serves to prevent direct transmission of radiation to the detector. The filter wheel W preferably includes six filters capable of being placed in the radiation path, one at a time, at will. The nature of these filters is described in detail in the Specification. With T2 as the source two of them may be used to determine the fluorescence of a sample whilst with T1 alight the results given by the other four can be compounded to give values proportional to the tristimulus values of the C.I.E. colour scale. Instrument constants, necessary to obtain the true values, can be derived by the use of standards, such as magnesium oxide and carbonate. It is stated that a proportion of readings made using tube T2 may be added to readings made using tube T1 to simulate the ultra-violet in daylight. A miniature fluorescent tube T is also described as used in a colorimeter (Fig. 4) for comparing a test sample S1 with a standard S2. Two apertures B in the light screen allow the light reflected from S1 and S2 respectively to pass through filters F in filter wheel W to photocells P1 and P2. The photo-cells are connected in opposition and any out-of-balance current indicated on a meter. Specifications 787,589 and 822,447 are referred to.
Patent GB-1426276-A (GB)
Title: Optical communication system
IPC: H04B10/516
Filed: 1973-04-17
Abstract: 1426276 Optical communication systems  MATSUSHITA ELECTRONICS CORP 17 April 1973 [18 April 1972] 18562/73 Heading G1A An optional communication system comprises a light emitting semi-conductor device producing a pulsed output which is modulated with pulses at a selected one of a number of given pulse widths and a receiver including a light detector, a pulse reshaping circuit and an integrator which produces an amplitude modulated output a voltage value of which is representative of the pulse width selected. In Fig. 1, a GaAs IR emitting diode is used as the light source 1 and is pulsed by means of an astable multi-vibrator 2 the pulse width of which can be selected by a control 3 which may be a switch arranged to change a time constant determining component of the multi-vibrator. The radiation is detected by a phototransistor 4 and the pulses reshaped by a Schmitt circuit 5. The resulting constant amplitude pulses are converted into an analogue signal by an integrator 6 which may comprise a simple RC circuit. Alternatively, Figs. 2 and 4 (not shown), the integrator may comprise a staircase waveform generator which is reset after a predetermined number of input pulses as counted by a frequency divider. The peak amplitude of the staircase depends on the pulse widths of the pulses generating it and is applied to a logic discriminator circuit utilizing two amplifiers and an analogue gating arrangement to actuate one of three relays depending on whether the input lies below, between, or above a pair of threshold levels, Fig. 5 (not shown). The system may be used for remote control of a radio or TV and mention is made of using multiplexed signals.
Patent GB-696473-A (GB)
Title: Improvements in and relating to the manufacture of heterocyclic compounds
IPC: C07D281/16
Filed: 1949-07-14
Abstract: The invention comprises compounds of the formula <FORM:0696473/IV (b)/1> where R is an aryl or heterocyclic radical, X is -O-,-S-or-CH2-, and the rings (A), (B) and R may carry substituents unaffected by phosphorus oxides, halides and oxyhalides (e.g. nitro, alkoxy, alkylsulphonyl); also their salts and quaternary compounds. They are prepared by heating with a phosphorus oxide, halide or oxyhalide an amide or amidine of the formula <FORM:0696473/IV (b)/2> where Z is oxygen or imino; preferably an inert solvent such as nitrobenzene is used.  Examples show the preparation of the following: 2-phenyl - 3 : 4 : 6 : 7 - dibenz - 1 - azacyclohepta - 1 : 3 : 6 - triene, 5 - phenyl - 2 : 3 : 6 : 7 - dibenz - 1 - oxa - 4 - azacyclohepta - 2 : 4 : 6 - triene, 31 - nitro - 5 - (p - nitrophenyl) - 2 : 3 : 6 : 7 - dibenz - 1 - oxa - 4 - azacyclohepta - 2 : 4 : 6 - triene, 5 - phenyl - 2 : 3 : 6 : 7 - dibenz - 1 - thia - 4 - azacyclohepta - 2 : 4 : 6 - triene, 211 - nitro - 5 - (p - nitrophenyl) - 2 : 3 : 6 : 7 - dibenz - 1 - thia - 4 - azacyclohepta - 2 : 4 : 6 - triene, 5 - (p - methylsulphonylphenyl) - 2 : 3 : 6 : 7 - dibenz - 1 - thia - 4 - azacyclohepta - 2 : 4 : 6 - triene, 5 - (p - nitrophenyl) - 2 : 3 : 6 : 7 - dibenz - 1 - thia - 4 - azacyclohepta - 2 : 4 : 6 - triene and 211 : 31 - dinitro - 5 - phenyl - 2 : 3 : 6 : 7 - dibenz - 1 - thia - 4 - azacyclohepta - 2 : 4 : 6 - triene.  Amidines.-The following are made by reacting benzonitrile or a substituted benzonitrile with the appropriate amine: N-(2-benzylphenyl) - benzamidine, N - (2 - phenoxyphenyl) - benzamidine, N - (2 - phenylthiophenyl) - benzamidine, N - (2 - p - nitrophenylthiophenyl) - p - nitrobenzamidine, N - (2 - phenylthiophenyl) - p - methylsulphonyl - benzamidine and N-(2-phenylthiophenyl)-p-nitrobenzamidine.  Amides.-The following are prepared by treating the appropriate amine with benzoyl chloride or p-nitrobenzoyl chloride: 2-(p-nitrobenzamido) - 4 - nitro - diphenyl ether, 2-benzamido-diphenyl sulphide, 2 - (p - nitrobenzamido) - 41 - nitro - diphenyl sulphide and 2 - benzamido - 4 : 41 - dinitro - diphenyl sulphide.  4 : 41 - Dinitro - 2 - amino - diphenyl sulphide is made by reacting 2-chloro-5-nitraniline with sodium sulphide and treating the product with 4-chloronitrobenzene.
Patent GB-1482217-A (GB)
Title: Liquid absorbent constructions
IPC: A61L15/46
Filed: 1975-04-28
Abstract: 1482217 Absorbent pad for diapers JEYES GROUP Ltd 28 April 1975 [29 April 1974] 18714/74 Heading A5R [Also in Division B5] A diaper or diaper liner comprises two layers of a liquid pervious, knitted, woven or non-woven web containing therebetween a powdered liquid absorbing and retaining agent which is an alginate, a carragheenate, a carboxypolymethylene or an ethylene oxide crosslinked polyacrylic acid. Upon contact by water the agent forms a water retaining gel. The web material may be rayon or a heat sealable paper coated with polyethylene or P.V.C. Up to 5 gms of agent may be used and it is capable of absorbing 20-100 times its weight of water. The powder may be in the form of a layer or spots lines or writing applied to one of the webs. Up to 2% by weight and up to 5% by weight of a quaternary ammonium or phenolic germicide and perfume, respectively, may be incorporated. The diaper may be provided with a disposal bag.
Patent GB-153089-A (GB)
Title: Improvements relating to plastic compositions suitable for roofing purposes, for damp courses, and so forth
IPC: D06N5/00
Filed: 1919-07-29
Abstract: 153,089. Curtis, C. F., and Johns, W. July 29, 1919. Compositions containing bituminous materials. -A composition made by melting the solid residue of coal-tar distillation after all separately valuable constituents have been removed with an approximately equal volume of coal-tar pitch, and adding a smaller quantity of an absorptive granular substance such as sawdust with or without a small proportion of short-fibred asbestos, is suitable for roofing, damp courses, and the like. In an example, 7 parts by weight of residue are melted and 5 parts of tar are stirred in, 3 parts by weight of wood dust are gradually added, and, if desired, 1 part of asbestos. The composition may be poured over the surface and trowelled, or it may be run out in sheet form and stored.
Patent GB-932282-A (GB)
Title: Photo transistor tape reader
Inventor: ROSS KENNETH SIDNEY
IPC: G06K7/10
Filed: 1962-05-16
Abstract: 932,282. Statistical apparatus. STANDARD TELEPHONES & CABLES Ltd. May 16, 1962 No. 18890/62. Class 106 (1). A perforated tape 5 is sensed when stationary by projecting a magnified image of it on to an array of photo-cells 7, there being one cell 7 for each index position in the projected area of the tape. The same arrangement may be used for sensing cards.
Patent GB-911964-A (GB)
Title: Improvements in or relating to heating systems
Inventor: BLIJ JOHAN DE
IPC: F24D3/00
Filed: 1961-05-25
Abstract: 911,964. Heating by circulation of liquids; hot-water boilers. DAVO HAARDENFABRIEK N.V. May 25, 1961, No. 18897/61. Classes 64 (1) and 64 (2). A liquid circulating system, particularly for space heating, comprises an oil-burning stove which heats the liquid circulating through space or like heating elements placed in a circuit which forms at least two loops, and a control device placed on the circuit which allows only one loop to be used at once. Heated liquid (normally water) either passes through the loop containing the heating elements 13 and 16 or, depending on the three-way stopcock 3, through the elements 14, 15 and 16. A thermostat 12 controls the fuel supply of stove 1. The liquid ducts are flexible rubber hoses the exterior of which may be painted. The heating elements consist of heat-conducting discs surrounding the ducts. In Fig. 3 (not shown), a flow resistance is placed on the circuit near a heating element so that a desired amount of liquid is passed through the heating element. A cross-section through the stove 13, shown in Fig. 7, in which the flue gases are passed through the openings 26 and 27 to the circulation space 28. The liquid is heated in an L-shaped vessel with a top part 30 and skirt part 31 and this vessel is separated from the fire space 25 by a double wall.
Patent GB-1379722-A (GB)
Title: Gas discharge display device
IPC: H01J17/49
Filed: 1973-04-19
Abstract: 1379722 Gas discharge display panels NCR CORP 19 April 1973 [1 May 1972] 18912/73 Heading H1D A gas discharge display device includes spaced front and rear substrates 14 and 12 formed of insulating material, at least said front substrate being transparent, a first layer 20 of conductive material forming electrodes on the inner surface of said rear substrate, a second layer 32 of conductive material which is opaque provided on the inner surface of said front substrate and having holes 36 therein, first and second layers 28 and 42 of insulating material respectively overlying said first and second layers of conductive material, an insulating member 16 arranged between said substrates and containing cavities the outlines of which conform in shape to and are aligned with said electrodes, said holes 36 in said second layer corresponding in shape to and being generally aligned with, but smaller in area than, said electrodes, and an ionizable gas contained within said cavities. The electrodes 20 may be in the shape of complete characters or may be segments forming a figure 8. The ionizable gas may be a mixture containing neon.