baber/WOPTO huggingface dataset:
Patent GB-1009510-A (GB)
Title: Electric automatic musical performance apparatus for an electronic organ
IPC: G10H1/26
Filed: 1962-04-17
Abstract: 1,009,510. Automatic musical instruments. H. MONI. April 17, 1962 [April 21, 1961], No. 14912/62. Heading G5J. An automatic electronic organ is controlled photo-electrically by a transparent tune sheet 21, Fig. 3, having recorded thereon a plurality of separate tracks in which musical data is recorded as opaque marks. Each individual track is read by a separate photo-electric detector D, Fig. 5. The output of a detector D is amplified by a transistor Tr and controls an operating circuit 27 through a relay 25. Tune sheet.-The length of an opaque mark in a track determines the direction of a signal and the position of the track on the sheet identifies the operating circuit to be controlled. An operating circuit may control a single note or may control the intensity of the sound from a whole keyboard of notes. In Fig. 3 groups S1 S2, S3 of note tracks correspond to the swell, the great and the pedal organ. Group S4 corresponds to a tone control and S5 to a pedal sustain. Tracks R1, R2, R3 control the volume of the swell, great and pedal organs respectively.
Patent GB-623960-A (GB)
Title: Valve control mechanism for oil-fired furnaces
IPC: F23K5/00
Filed: 1947-06-05
Abstract: 623,960. Valves controlled by auxiliary valves. BEARDMORE & CO., Ltd., W., and CAMERON, R. June 5, 1947, No. 14941. [Class 135] Valve control mechanism for the burners of oil-fired furnaces comprises two operating fluid distributing chambers 1, 2, a supply pipe 3 and an exhaust pipe 4 all connected to a change-over valve 5 adapted to connect one chamber to the supply and the other to the exhaust, an oil supply pipe 6 having slide valves 7, 8 in its branches, each valverod 12 carrying an operating piston 13 and a dashpot piston 14, the latter having at least one non- return valve 14A opening in a direction away from the oil valve, and working in a cylinder 16 having a byepass pipe 17 connecting its ends, and a steam supply pipe 9 with slide valves in its branches, each valverod carrying an operating piston. The chambers 1. 2 are so connected to the operating cylinders that pressure fluid admitted to one chamber will be conducted to close the oil and steam valves for one set of burners, and to open the oil and steam valves for another set. Similar dashpot means may be provided for the steam valves. A valve 17A may be included in each pipe 17. The operating fluid may be steam, air, water or oil under pressure. Auxiliary hand control means are provided for each valve.
Patent GB-510038-A (GB)
Title: Improvements in the manufacture of ice glazes for frozen fish and other materials
IPC: A23B4/08
Filed: 1938-05-19
Abstract: 510,038. Preserving fish &c. BEDFORD, R. H. May 19, 1938, No. 15004. [Class 49] [Also in Group XIII] A non-cracking ice-glaze for frozen fish and other foods is formed from water containing a small proportion of an alcohol, preferably with the addition of hydrochloric or other acid. Alcohols mentioned are ethylene and trimethylene glycols, glycerol, arabinose, glucose, mannose, galactose, fructose, sucrose and maltose, and the proportion is about 0.2 or 0.3 per cent. by weight of alcohol. The fish &c. may be frozen rapidly or otherwise at about -30‹C. and dipped into glazing solution at a temperature of about 1‹C., the glazing room temperature being about -25‹C. After glazing the fish &c. are maintained in frozen condition in cold storage until required for use.
Patent GB-823960-A (GB)
Title: Speed control of rotary bladed machines
Inventor: HARMAN ROWLAND
IPC: H02P23/00
Filed: 1956-05-14
Abstract: 823,960. Centrifugal pumps; engine stopgear; turbines. NAPIER & SON Ltd., D. May 3, 1957 [May 14, 1956], No. 15015/56. Classes 110 (1), 110 (3) and 122 (4). [Also in Group XXXV] A speed control arrangement for a bladed rotary machine comprises an electromagnetic pick-up device connected to the machine casing and arranged to be sensitive to the changing magnetic conditions within the casing as the blades rotate and to produce a pulsating electric signal having a frequency proportional to the rotational speed of the machine, an electric frequency selective circuit associated with the pick-up device and means actuated by the circuit to control the rotational speed of the machine. A turbine driven centrifugal fuel pump for a rocket motor comprises a five-bladed impeller 3 rotatable in an aluminium casing 4 to which is secured an electromagnetic pick-up unit 5 comprising a permanent magnet 6 with series wound windings 9, 10 on its polepieces 7, 8. Probes 13, 14 of magnetically permeable material make close contact at their outer ends with the respective polepieces and extend through parallel bores 11, 12 in the casing which has a slot containing the bores filled with electrical insulating material 15 to prevent eddy currents around the probes. The impeller blades are also of magnetically permeable material so that as the impeller rotates the pick-up generates a pulsating alternating current with a frequency of 5 cycles per impeller revolution. This current is led by connections 16, 17 to a bridge circuit 20 comprising inductances L<1>, L<2> and capacitors C<1>, C<2> arranged oppositely, the sides of the bridge between the inductances and capacitors being connected through resistances R<1>, R<2> to the central point 23. Thus, according to the applied frequency, the voltage across resistor R<1> will be greater than, equal to, or less than the voltage across R<2>. The resultant voltage across resistors R<1>, R<2> is applied to a transistor 21 which is energized only when the turbine overspeeds and causes the pick-up frequency to exceed a predetermined value. The output from transistor 21 when energized is fed to a further transistor 22 whose output operates a relay winding 29 to open a switch S<1> and close a switch S<2>. The switch S<1> when opened closes the turbine fluid supply valve 30 through a solenoid circuit 31 and the switch S<2> when closed ensures that the current in the relay winding 29 is maintained and the valve 30 thereby kept shut. A small negative bias is applied in series with the greater positive bias from the bridge, which holds transistor 21 in a non-conducting state, by a battery B<3>, so that if the input to the bridge 20 fails due, for example, to a fault in the pick-up, the transistors 21, 22 are automatically activated and the switch S<1> opened to shut off the fluid supply to the turbine. A manually-operated switch S<3> is opened to permit starting the turbine.
Patent GB-749768-A (GB)
Title: Improvements in collapsible tubular supports such as mine roof supports
Inventor: BEECROFT ALBERT
IPC: E21D15/58
Filed: 1953-05-29
Abstract: 749,768. Pit props. THRISLINGTON ENGINEERING CO., Ltd. Aug. 26, 1954 [May 29, 1953No. 15019/53. Class 20(2). A collapsable support, particularly intended as a roof support for use in mines, comprises a downwardly tapered inner member a, Fig. 1, slidable in an outer member which is provided on opposite sides of the member a with a cam operated gripping shoe K and a downwardly tapered gripping wedge m resiliently supported by a spring o. In use the member a is raised by hand into contact with the mine roof, the final upward pressure then being applied by a setting device, Fig. 4, which is temporarily connected between a pin t fixed to the outer member and the under side of the cap b of the inner member. When the required pressure has been applied the cam is rotated by a lever (not shown) to operate the gripping shoe k, and the setting device is then removed. The setting device consists of tubular outer and inner members r, s, provided respectively with a socket r<SP>1</SP> and a step s<SP>1</SP> to engage the pin t and underside of the cap b respectively, and containing a nut r<SP>2</SP> and a screw s<SP>2</SP> formed with a square head 8<SP>3</SP> which may be turned by a ratchet lever to apply the final upward pressure. The support is released by turning the cam j to remove the pressure applied by the shoe k, whereupon the wedge m is slightly raised by the spring o. The wedge m is provided with a facing m<SP>1</SP>.
Patent GB-441596-A (GB)
Title: Improvements in road materials and road making
IPC: E01C3/00
Filed: 1935-05-23
Abstract: 441,596. Roads. SCHLUTER, E. D. S., 119, Luisenweg, Hamburg, Germany, and MIRANDA, J. DE, 72, Rokin, Amsterdam. May 23, 1935, No. 15086. [Class 107] A road is constructed with a foundation consisting of broken stones and a filler of clay mixed with a fibrous felting agent, and with a surface layer of bituminous material mixed with the same felting agent, the volumetric proportion of the felting agent in both layers being approximately 3: 11. Suitable felting agents are sawdust and wood pulp. The bituminous material may be mixed with the fibrous material in a melted state, in the form of an emulsion, or in the form of powder which is applied to the road bed by means of a hot roller.
Patent GB-884806-A (GB)
Title: Improved method of producing alumina
Inventor: BARRINGTON ROBERT ROSS
IPC: C01F7/442
Filed: 1959-05-04
Abstract: Alumina is produced by calcining aluminium hydroxide, preferably produced by the Boyer process, in the presence of a boron compound and hydrofluoric acid.  The process may be carried out as described in the parent Specification using 1% to 5% by weight of boric acid, and, instead of up to 5% by weight, e.g. 1%, of aluminium fluoride, an amount of hydrofluoric acid such that the amount of fluoride ion is the same as in the aluminium fluoride.
Patent GB-1311253-A (GB)
Title: Apparatus for detecting a free channel in a telecommunications system
IPC: H04J1/20
Filed: 1971-05-17
Abstract: 1311253 Automatic exchange systems COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 17 May 1971 [15 May 1970] 15224/71 Headings H4K and H4L A multi-channel heterodyne frequency-modulation telecommunications transceiver is adapted to scan for an idle noise free channel and if no such channel exists to repeat the scan for a free noise laden channel. In the receiver section shown a stepping selector 12, 13 steps each time it is pulsed to select a heterodyning frequency corresponding to a channel. For each step the intermediate frequency is amplified at 4 and combined at 5 with a test frequency from a local oscillator 22 supplied at a first intensity via a gate 23. The intensity of the combined signal is limited at 6, the extent to which the test frequency is clipped varying with level of sound on the incoming channel. The clipped test frequency is filtered out at 33 and its intensity compared at 35 with a reference level S and if this reference level is exceeded a storage element 38 is set terminating the scan and selecting that channel. The level of the test frequency passed by gate 23 is such that the comparator 35 will only produce an output terminating the scan when an idle noise free channel is scanned. The stepping is controlled by a clock 41 which cycles a counter 44 controlling the logic, stepping the selector 13 once per cycle and after all N channels have been scanned switching a bi-stable 52 to its other state via a divide by N circuit 51. Switching of the bi-stable 52 closes a gate 23 and opens a gate 24 which passes the test freqeuncy at a second intensity level. The channels are scanned a second time using this test frequency intensity which is such as to be still attenuated below the reference level S by the sound level on any busy channel but will not be attenuated below the reference by a noise laden idle channel. Accordingly the scanner will stop during the second scan on the first idle channel.
Patent GB-992564-A (GB)
Title: Improvements in or relating to patterning devices for circular knitting machines
IPC: D04B15/78
Filed: 1964-04-13
Abstract: 992,564. Knitting-machines. F. MORAT, [trading as FRANZ MORAT KOMM.-GES.]. April 13, 1964 [April 20, 1963], No. 15225/64. Heading D1C. A pattern wheel has needle lifting elements 1 which are urged into their operative positions by springs 11 and controlled by cams 17 which rotate relative thereto. The elements 1 may be locked in their inoperative position by springs 9 which have noses 9b which engage in notches 1c of the needle lifting elements. The arrangement is such that prior to selection all the elements 1 are returned to their inoperative positions where selected ones of the springs 9 are allowed to drop into position to retain the elements 1 in their inoperative position by engagement with the nose 9b. The selection mechanism is shown in Fig. 6 and comprises an electromagnet 15b and two permanent magnets 15a and 15c. All the springs 9 are raised by the cam 18 and held by the magnet 15a. Selected ones of the springs 9 are allowed to drop i.e. are not attracted by the magnet 15b and engage the elements 1 as at 9<SP>1</SP>. Others, as at 9<SP>11</SP>, are retained in a non-engaging position which is assisted by the permanent magnet 15c. The axis XX of the pattern wheel in this case is inclined in the usual way to the axis of the needle cylinder. A similar mechanism in Fig. 9 (not shown) has the needle engaging elements acting longitudinally of the needles. Fig. 8aC shows an arrangement wherein the needle engaging elements are jacks 1 and are raised upwardly to a limited extent by springs 111. Selection takes place by means of an electromagnet 115 (not shown) and selected jacks are raised above the level of cam 120 by the spring 111 and unselected jacks are retained below it. The needles may be raised to the tuck position by direct action of the cam 130 or to the full knitting position by the cam 120 and jack 1. The electromagnet may be controlled by a jacquard system or film strips.
Patent GB-439108-A (GB)
Title: A process for manufacturing artificial leather
IPC: D04H1/74
Filed: 1934-05-22
Abstract: 439,108. Fabrics composed of agglutinated fibres. NAAMLOOZE VENNOOTSCHAP VEREENIGD INDUSTRIEEL BEZIT, 99, Zijpendaalschweg, Arnhem, Holland. May 22, 1934, No. 15226. Convention date, May 20, 1933. [Class 140] Artificial leather is made by treating, e.g. spraying the surface of a loosely coherent fibrous sheet with a very slight proportion of an adhesive, impregnating the treated sheet by passing between low pressure rollers between which a certain volume of non-viscous rubber dispersion or solution is maintained, drying, and if desired finally calendering and vulcanizing. The adhesive-treated sheet may be passed several times between the impregnating rollers, being dried and calendered between successive impregnations. The fibrous sheet may be a fleece of paper wadding, a card fleece, or a loosely coherent felt. Cotton, jute, sisal, hemp or coco fibres may be used, and may be previously boiled in water or an aqueous solution of a salt, acid, or alkali, e.g. caustic soda. The adhesive may be a rubber dispersion such as dilute latex, rubber solution, starch, glue, or a cellulose derivative adhesive. Concentrated latex may be used as the impregnating material. The fleece &c. may be impregnated first with a rubber dispersion or solution containing very little filler material, and subsequently with rubber dispersions containing a large quantity of filler. The product may be finally dyed, printed, lacquered, embossed, &c.
Patent GB-810054-A (GB)
Title: Improvements in levels or clinometers
IPC: G01C9/24
Filed: 1956-05-16
Abstract: 810,054. Levels. GASPAR, L. J. May 16, 1957 [May 16, 1956], No. 15241/56. Class 97(2) A spirit level tube is carried in a hollow cylindrical holder which is rotatable in a bore in a stock and has end flanges overlying the faces of the stock to retain it in the bore and permit direct manual adjustment and may be clamped in adjusted position by manually operable means carried on the stock. In the form shown the tube 10 is mounted in the holder 8 flanged at 12 and rotatable in a bearing bush 11 mounted in the stock 1. A flange 12 is secured by screws 14. The flanges are recessed into the stock and carry scales of angles and gradients indicating the position of the tube 10. An eccentric cam is rotatable about an axis parallel to that of the holder 8 to bear against the periphery of the holder to clamp it. A screw passing through the cam and bearing against the holder may be tightened to provide additional clamping. Other spirit level tubes may be provided in rotatable holders which may be locked in predetermined positions by set screws in the stock engaging recesses in the holders.
Patent GB-296806-A (GB)
Title: Improvements in or relating to thermionic amplifiers
IPC: H03F1/16
Filed: 1927-06-08
Abstract: 296,806. Gill, E. W. B., and Donaldson, R. H. June 8, 1927. Thermionic amplifiers and detectors.-Selfoscillation in a high-frequency amplifier or detector, due to inter-electrode capacity coupling, is prevented or controlled by employing a fourelectrode valve 5, with the input circuit 1 connected across the plate 3 and inner grid 4, and the output circuit 10, 11 and high-tension battery 12 connected across the outer grid 9 and the filament 8. An adjustable intermediate point 6 of the input coil 1 is connected through a battery 7 to the filament. A variable condenser 13 or 14 may be arranged to increase the effective capacity between the electrodes 3, 9 or the electrodes 4, 9.
Patent GB-317890-A (GB)
Title: Improvements in stuffing or packing for mattresses, seats, cushions, lifebelts and the like
IPC: B68G3/00
Filed: 1928-05-25
Abstract: 317,890. Smith, J. P. S., and Tomkins, H. T. May 25, 1928. Upholstery stuffing-materials. - Thin shavings of cork, preferably cut from the inner-layers, are steamed or boiled and used to stuff mattresses, seats, cushions, lifebelts, &c. The material may also be treated to render it waterproof or non- inflammable.
Patent GB-266585-A (GB)
Title: A new or improved direction indicating device for use by motorists and other road users
IPC: G08B5/00
Filed: 1926-06-18
Abstract: 266,585. Fraser, H. June 18, 1926. No Patent granted (Sealing fee not paid). Reflectors. - The flat face of a faceted red or ruby reflector a bears against the flat face of a case b flanged over to secure the reflector, the casing being polished or the glass having a reflecting surface, while a strap or resilient band d enables the device to be secured to the arm of a driver, pedestrian &c. Reference has been directed by the Comptroller to Specifications 28450/12, 29545/12, [both in Class 43, Fastenings, Dress]; and 183,200.
Patent GB-1137670-A (GB)
Title: Improvements in data processing systems
IPC: G06F9/315
Filed: 1966-04-06
Abstract: 1,137,670. Digital data processing apparatus. GENERAL ELECTRIC CO. 6 April, 1966 6 April, 1965; 14 April, 1965; 15 April, 1965], No. 15378/66. Heading G4A. In a data processing system, four adjacent storage locations of a memory 10 are used as a temporary store (defined as an accumulator) for data which is being processed by the arithmetic unit of the system, the position of the chosen locations being movable and being specified by an initial instruction word which sets into register A the address of the most significant word of the four word temporary store. The same instruction also sets in register 314 the working length of the store which indicates how many of the four temporary store locations are to be used to store data. Instruction words for processing data are read into registers I, D and Q, the register D containing the instruction operand address which address is then sent to the memory and the corresponding data read out into M-register. It is then re-written into its orginal memory location and also into the most significant word location of the temporary store, whence it can be transferred for processing by adder 302 and the registers M and E, the result being re-written into the temporary store. If the result of an operation is to be temporarily retained an instruction word is read out to change the location of the temporary store and the result of operations on new data stored in this new temporary store. If a data item read from memory occupies a 2, 3 or 4 word field then that part of the data corresponding to the first memory location of the item is read into the most sigificant word location of the temporary store and the data corresponding to the remaining locations of the item is read sequentially into the remaining word locations of the temporary store. A register 315 indicates when a data word has been completely allocated to the temporary store to prevent the addition of ZERO data words to the temporary store locations.
Patent GB-206472-A (GB)
Title: Improvements in or relating to marine boiler furnaces
IPC: F23M9/00
Filed: 1923-06-13
Abstract: 206,472. Str÷mman, A. Oct. 31, 1922, [Convention date]. Baffles; air, supply ing.-In a marine boiler, a baffle wall 4 is arranged at the upper part of the rear end of the furnace flue 3 and air for combustion is supplied to the flue between the baffle wall 4 and fire-bridge 2 through a channel 6 below the ashpan 5.
Patent GB-539412-A (GB)
Title: Improvements in the production of photo-mechanical printing plates
IPC: G03F5/24
Filed: 1939-06-05
Abstract: 539,412. Producing photo-mechanical printing plates. LENGEL, A. L. June 5, 1939, No. 15555/40. Convention date, June 6, 1938. Divided out of 530,445. [Class 98 (ii)] A low relief printing plate produced by lightly etching to a depth of between 0.005 and 0.007 of an inch thin metal, for example zinc or jem metal, readily flexible about a plate support and of a thickness between 0.020 and 0.027 of an inch has throughout the etched non-printing areas uniform dots produced by exposure through a half-tone screen to a surface of uniform' light tone, the dots serving merely as mechanical supports for the inking rollers and web in a rotary web perfecting press. In the production of the plate, a negative is made on a film by photographing a white surface through a coarse half-tone screen. The picture matter is photographed through a fine half-tone screen on to one or more films which are then inset into appropriate apertures on the first film, which is mounted on a glass plate. A transparent film is placed over the combination, and text, type and line drawings are placed in this sheet and photographed from the rear to reverse the lettering, and obtain a film in which the text &c. are represented by transparent areas and the rest of the film is opaque. This latter film and the combination film are then successively printed in either order on a sensitized flexible metal sheet, which is then " rolled up" and etched. Flanges may be provided on the plate for direct attachment to a printing cylinder. Where opposite sides of the web are printed on, ordinary relief type plates, if used, should be on the first printing cylinder and the plates according to the invention on the second cylinder. The plates may be used in multi-colour printing, either alone or in combination with ordinary relief type plates. Stereotype plates may be made from the plates according to the invention. Specification 345,255 is referred to.
Patent GB-1528157-A (GB)
Title: Manufacture of pneumatic tyres
IPC: B29C45/00
Filed: 1975-04-16
Abstract: 1528157 Moulding tyre treads DUNLOP Ltd 9 April 1976 [16 April 1975] 15595/75 Heading B5A A tyre tread for application to a tyre carcass is moulded from a curable elastomeric material by heat and pressure which is controlled to effect a substantially total cure of the material at the surface formed with a tread pattern without total cure of the material at the surface which is to be applied to the tyre carcass. The tread may be in strip or ring form and may include reinforcement. It may be applied to an uncured partially cured or totally cured carcass and the assembly then totally cured.