baber/WOPTO huggingface dataset:
Patent GB-355521-A (GB)
Title: Improvements relating to windscreen wipers for motor vehicles
IPC: B60S1/34
Filed: 1930-09-03
Abstract: 355,521. Windscreen wipers. VAUXHALL MOTORS, Ltd., Kimpton Road, Luton, and DREW, H., Roundwood Crest, Roundwood Park, Harpenden, Hertfordshire. Sept. 3, 1930, No. 26277. [Class 138 (i).] A windscreen wiper d is automatically disconnected from its actuating mechanism i when the windscreen a, on which the wiper is mounted, is opened. The actuating mechanism i is mounted on a fixed portion k of the car. The screen a is assumed pivoted at the top. The wiper d has a spindle c carrying a slotted disc f engaging an actuating crank arm g provided with a lug l. To avoid the arm d falling completely over when the screen is opened, the disc f has two shouldered notches f<2>, Fig. 3, engaging opposite sides of an abutment bracket m which limits the angular movement of the arm d. When the screen slides upwards, a spring crank arm g moves downwards and the corresponding slot f<1>, Fig. 5, is directed downwards. The bracket m is then arranged on top. The disc f has a forwardly curved border f<3> to press back the lug l until it snaps into the slot f<1>,
Patent GB-887263-A (GB)
Title: Improvements in or relating to retaining ring dispensers
IPC: B65G59/06
Filed: 1960-07-28
Abstract: 887,263. Holders for spring rings. WALDES KOHINOOR Inc. July 28, 1960 [Aug. 21, 1959], No. 26309/60. Class 78 (1). In a device for holding and dispensing split-rings, comprising a base 10 on which a stack rod 18 is mounted, the rod in normal position overlies a pocket 24 in the base for holding the foremost ring in the stack in withdrawal readiness position, the stack rod being bodily movable to a retracted position to clear away the ring column from the pocketed ring so that this ring becomes accessible to a ring pick-up and withdrawal tool. As shown in Fig. 1, the stack rod 18 is movable from the normal vertical position to the retracted position when the operator engages it with the tool by swinging about an axis perpendicular to the base 10; for this purpose a two-armed lever 13 is pivoted to the base by a pin 12. The stack rod 18 consists of two cylindrical half-sections 18a, 18b secured flush against the side faces of a blade-like part 17 of a right-angled upright bracket 15, the latter being secured to one arm 13 of the lever. The lever 13 and stack rod 18 are maintained in normal position by a spring 20. The depth of the ring pocket 24 corresponds in depth to the axial thickness of one of the rings, the pocket being accessible from below through an opening in the base of the pocket. A guide 36 is attached to the bracket 15 to receive the thrust of the picking-up tool. In a modification, Fig. 8 (not shown), the stack rod is mounted to swing about a horizontal axis parallel to the base and positioned above the ring-receiving pocket. In another modification, Fig. 11 (not shown), the stack rod is mounted on a slide movable in a slideway in the base against the action of a spring. Specification 882,040 is referred to.
Patent GB-731293-A (GB)
Title: Improvements relating to the production of ships' propellers
Inventor: TUCKER JOSEPH FRANCIS
IPC: B23Q35/10
Filed: 1952-10-23
Abstract: 731,293. Grinding propellers. BULL'S METAL & MARINE, Ltd. Oct. 20, 1953 [Oct. 23, 1952], No. 26609/52. Class 60. A series of grooves to serve as a guide to a finishing operation is cut in a ship's propeller having blades which vary in pitch from root to tip by a machine comprising means for holding the propeller 1 in position and a grinding-head 17, Fig. 1, slidably mounted on a guide 12 which is capable of rotation about and movement parallel to the axis of the propeller, the outer end of the guide being itself guided on an inclined rail 24 adjustable to the required pitch angle. The propeller is centred by dogs or pinching screws on a table 2 which is normally held by friction but may be easily turned when the oil pressure in its bearing 5 is increased by a hand pump 7. A counterbalanced bracket 10 slidably and rotatably mounted on a central steel post 8 supports the guide 12 at an angle which may be adjusted by means of a screwed section 13a on a tie-rod 13. In operation, the guide 12 is set to the rake angle (if any) of the blades and a radial groove cut from root to tip of each blade by traversing the head 17 along the guide 12 with a feed-screw 15. A series of circumferential grooves at radial intervals of 3 to 6 inches is then cut by rotating the guide 12 about the post 8, each groove being cut at the required pitch angle by adjustment of calibrated supports 25, Fig. 3, for the rail 24. The guide engages this rail through a roller mounted on a telescopic section 12a which is adjusted simultaneously with the screwed section 13a. An electrically-driven thin grinding-wheel, preferably of the resin-bonded type, is used.
Patent GB-412904-A (GB)
Title: Improvements in or relating to modulated carrier wave communication systems
IPC: H03D3/12
Filed: 1932-09-26
Abstract: 412,904. Wireless receiving systems. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.- (Assignees of Crosby, M. G.; Riverhead, Long Island, New York, U.S.A.) Sept. 26, 1932, No. 26688. Void [Abridged as open to inspection under Sect. 91 of the Acts, Sept. 26, 1932]. [Class 40 (v).] In a high-frequency receiving system the carrier frequency and one sideband are separated from the other sideband, rectified and passed to the translating device. The other sideband and the carrier frequency may be passed to another detector and the output from the two detectors combined additively to give increased output. Fig. 1 shows a superheterodyne receiver for phase-modulated waves comprising high and intermediate frequency amplifiers 4, 6 and filters A, B each accepting one sideband and the mean intermediate frequency, corresponding to the carrier frequency in a plain receiver. The output from the filters is passed to detectors 12, 18, the outputs of which are combined in phase opposition. For amplitude modulation the detector outputs are combined in parallel. For receiving frequency-modulated waves, a filter 15 is interposed in the audiofrequency circuit, designed to give an output to input ratio which rises proportionally with the frequency. This filter may alternatively be incorporated in the audio-frequency circuit at the transmitter. The invention is mainly applicable to the prevention of fading.
Patent GB-746868-A (GB)
Title: Improved apparatus for the capacitative indication or regulation of a physical variable
IPC: G05B11/01
Filed: 1953-09-29
Abstract: 746,868. Automatic liquid level control systems. SCHREIBER, D. S. Sept. 29, 1953 [Dec. 31, 1952], No. 26719/53. Class 38 (4). [Also in Groups XXXVI and XL (c)] Apparatus for indicating when the contents of a container reach a predetermined upper or lower level comprises an oscillating circuit into which is connected the capacity between the container and an immersed electrode having, e.g., the liquid content as dielectric in such a way that the value of the capacity causes oscillations to start when the liquid falls to the predetermined lower level, thereby energizing a relay which removes an auxiliary condenser in parallel with the measured capacity to stabilize the oscillating condition, and causes oscillations to stop when the liquid rises to the predetermined upper level, whereby the relay falls to add the auxiliary condenser, stabilizing the non- oscillating condition, and closing control and alarm circuits, which will thus also operate if an electric fault occurs. As shown (Fig. 1), the level of the liquid 6 in a container is determined by the capacity between an electrode 5 immersed in the liquid and the metal container, having the liquid as dielectric. This capacity is connected to allow a valve 1 to oscillate if it is smaller than the capacity of a condenser 4, and vice versa. The output of valve 1 is rectified to bias a valve 2 having a relay 10 in its anode circuit controlling via contacts 9 an auxiliary condenser 11 which may thus be added to or subtracted from the capacity 5-6. Thus if the liquid level is high, capacity 5-6 prevents valve 1 from oscillating, relay 10 is unenergized and capacity 11 is in parallel with 5-6; if the liquid level falls, capacity 5-6 falls, valve 1 oscillates and relay 10 is operated to open-circuit condenser 11 and the oscillations are augmented. Relay 10 also controls via contacts 19 indicating and regulating circuits. Other methods of modifying the circuit to establish the upper and lower operating levels are described, e.g. by switching the tapping point on coil 3. To compensate for variations in dielectric constant, the condenser 4 may also be located in the container to have the liquid 6 as its dielectric. The capacity change at certain levels may be increased by coiling the electrode 5 as shown at 25, 26 (Fig. 2) or by adding cylindrical plates 30, 31 (Fig. 3), or the electrode 5 may consist of a plurality of metal plates. The apparatus may also be used to control the moisture content of, e.g., paper, or the thickness of a non-metallic foil, the material being run between the plates of a test condenser connected to the test oscillatory circuit or to count or sort objects passing on a band between the plates of the test condenser. Specification 696,907 is referred to.
Patent GB-1471223-A (GB)
Title: Indicator arrangements for electronic calculators
IPC: G06F15/02
Filed: 1974-06-17
Abstract: 1471223 Indicator drive system SONY CORP 17 June 1974 [19 June 1973 (2)] 26757/74 Heading G4H A battery saving system for driving an indicator display switches the display on continuously for a first period and then intermittently. The first period may be reduced when the battery voltage is less than a predetermined value. The indicator display may be "NIXIE" (Registered Trade Mark) tubes, liquid crystals or light emitting diodes. The circuit comprises a zener controlled threshold device which switches the time constant of a RC circuit between two values. Intermittent activation is produced by an astable multivibrator which is disabled during the first period. The circuit may be used in a calculator; operation being initiated either by a key or by the end of the calculation.
Patent GB-1511960-A (GB)
Title: Fuel injection pumps
IPC: F02M59/48
Filed: 1976-06-28
Abstract: 1511960 Fuel injection pumps FRIEDMANN & MAIER AG 28 June 1976 [27 June 1975]  26877/76 Heading F1A In a fuel injection pump having a casing 2 with a bore 1 in which parts comprising a barrel 3, a delivery valve body 5 and a delivery connector 4 are clamped end-to-end, the end-faces of the delivery valve body each comprise inner and outer annular contact areas 14, 15 and an annular groove 20 in the periphery of at least one of the parts extends radially inwards at least as far as the inner radius R of the outer area 15. The groove 20 does not extend inwardly beyond the outer radius r of the inner annular area 14. The provision of the groove(s) 20 increases the flexibility of the external portions of the part(s) whereby the contact pressure at the inner annular area(s) 14 increases at the expense of the outer annular area(s) 15.
Patent GB-508445-A (GB)
Title: Improvements in clearers or scrapers for the rollers of textile preparation machines
IPC: D01H5/62
Filed: 1938-09-15
Abstract: 508,445. Roller-clearers for flax &c. preparing machines. GREEVES, Ltd., J. and T. M., and EVES, J. V. Sept. 15, 1938, No. 26882. [Class 120 (ii)] Scrapers or clearers for the rollers of preparing-machines for flax, hemp, jute, and like fibres comprise a flexible rope or a chain carrying scrapers more than twice as long as the working face of the roller, and pressed against the roller by a race so that it may be pulled longitudinally to expose a length for cleaning and to present a cleaned operating surface to the roller. A compressible rope D, Fig. 1, trailed over guide pulleys M, is pressed against the drawing-roller A by a race E carried by spring supports F releasable by handles K, or, as shown in Fig. 4, scrapers n are supported by springs n<4> on a link-chain N provided with a handle N<1> for adjustment for cleaning. In place, of the rope, a band comprising two layers of flannel sewn together, or a rubber cord sheathed in braided yarn may be used. The rope or chain may be endless and reciprocating, intermittent or continuous movement imparted. Mechanically operated means may be used for cleaning the rope or chain.
Patent GB-444575-A (GB)
Title: Improvements in brakes
IPC: F16D51/56
Filed: 1934-09-19
Abstract: 444,575. Brakes. BENDIX AVIATION CORPORATION, 105, West Adams Street, Chicago, U.S.A. Sept. 19, 1934, No. 26893. Convention date, Dec. 28, 1933. [Class 103 (i)] Relates to internal-expanding brakes of the kind comprising a pair of shoes each of which is arranged to anchor at one part when the drum is rotating in one direction and at another part when the drum is rotating in the opposite direction. The operating means comprises a pair of connected floating levers each having upstanding members engaging the shoe ends. In Fig. 6, the floating levers 738, 744: arranged within the drum each have a pair of projections 772 disposed between the ends of the shoes 714, 716 and on either side of the anchors 722, 724, the lever 738 having an extension 732 connected to a cable 720 which passes through the back plate and through a conduit extending from the plate to the vehicle frame. When the drum is rotating in the normal counterclockwise direction, the shoes 714, 716 anchor respectively at 722, 724 and when it is rotating in the other direction these shoes anchor at 724, 722 respectively. The shoes may as shown each consist of two parts with an adjustable connection comprising screwed rods 780 fixed to the shoe parts and connected by a screwed sleeve or a screwed sleeve engaging one shoe part may be connected to a screwed rod secured to the other part. Release springs 726, 728 connect the two shoes and additional springs 727, 729 connect one end of each shoe to the adjacent anchor to prevent that end from leaving the anchor when the brake is applied with the drum rotating in normal direction. In Fig. 4, each floating lever 638, 678 having projections 672 between the ends of the shoes 614, 616 has a projection 636, 676 engaged by a lever 632, 644 pivoted on the respective anchor 624, 622. The lever 632 has an extension connected by a link 642 to the lever 644 which may have an extension to which and to shoe 616 a return spring 648 is attached. The operating cable 620 is connected to lever 632. The release springs 626 ... 629 are attached to the shoes and to the anchors, the springs 627, 629 being stronger than the other springs. The Specification as open to inspection under Sect. 91 comprises also the subject-matter of Specification 444,614. This subject-matter does not appear in the Specification as accepted.
Patent GB-957780-A (GB)
Title: Formazane azo dyestuffs derived from cyclic ketones and process for their manufacture
Inventor: STEINMANN WILLY
IPC: C09B50/00
Filed: 1960-08-03
Abstract: Formazane azo dyes are made by coupling 2 mols. of a benzenic diazo compound with one mol of a cyclic ketone, which may be substituted, and which has the formula <FORM:0957780/C3/1> where n is 4, 5 or 6. They may contain a hydroxyl or carboxy group ortho to the azo group and are then metallizable.  Coupling is preferably effected in an alkaline medium, optionally in the presence of an organic solvent. Cyclohexanone is the preferred ketone. Representative of specified diazo components are anthranilic acid, 2-amino-1-phenol-4-sulphonic acid anilide, -5-sulphonic acid-tetrahydronaphthyl - (1) - amide, 5 - sulphonic acid amide, -21-hydroxyethylamide, -31-methoxypropylamide, 31-chlorophenylamide and 31-dimethylaminosulphonyl - phenylamide, 2-amino - 1 - phenol - 4 - methylsulphonyl-, -4-methylsulphamimo-, 4-nitro-, 4-pyrrolidazyland -4-acetaminobenzene and 2-amino-1-phenol-6-carbethoxyamino- and -nitro-4-sulphonic acids. The dyes may contain exchangeable hydrogen atoms so that groups may be introduced into the dyes which contain a substituent which may readily be split off as an anion or a C-C multiple link which may form an addition compound and products so obtained may be used as reactive dyes.  Polyazo dyes may be made from those of the dyes which contain groups capable of azo dye formation, if necessary after formation of such groups from other groups, e.g. nitro or acylamino groups.  Those of the dyes which contain no solubilizing groups may be used as disperse dyes for artificial fibres, e.g. acetylated cellulose and polyterephthalic acid glycol ester fibres and as pigments for plastic materials, varnishes and fibres spun from their solutions in organic solvents.  Dyes with water-solubilizing groups dye textiles of all kinds, the low molecular weight products being used on wool, silk, polyamides and leather.  Metallization may be effected in substance or on the fibre.  Examples are provided which illustrate the preparation of the dyes, and their copper and nickel complexes, and the use of the complexes in the dyeing of a variety of materials in blue and green shades, the ketones used being cyclohexanone, 2-methyl-cyclohexanone, o-, m- and p-methyl-cyclohexanone, cyclopentanone and cycloheptanone.
Patent GB-1049217-A (GB)
Title: Improvements in or relating to catalyst materials
Inventor: WHITELEY RONALD
IPC: B01J21/00
Filed: 1965-06-25
Abstract: Silica catalyst support shapes are made by mixing a predominantly siliceous mineral, preferably containing at least 97% SiO2, with lime binder and water, shaping and firing, grinding the fired shapes with additional lime, mixing 50-80 parts (wt.) of the ground particles with 50-20 parts highly bonded sand containing 83-93% silica, 3-10% alumina, and other oxide components dispersed as clay-like minerals, adding a temporary binder and shaping and firing.  The siliceous mineral may be quartzite, sandstone, silcrete, flint, chert, sand or a silica conglomerate.  The resultant shapes have a quartz content not greater than 2% and an apparent porosity 26-33%.  A fired catalyst shape comprises the said silica support, nickel oxide, and a promoter therefor such as magnesia or an alkali or alkaline earth metal oxide.  In an example, the temporary binder is sulphite lye, and aluminium stearate and paraffin are added as internal lubricants.ALSO:Silica catalyst support shapes are made by mixing a predominantly siliceous mineral, preferably containing at least 97% SiO2, with a lime binder and water, shaping and firing, grinding the fired shapes with additional lime, mixing 50-80 parts by weight of the ground particles with 50-20 parts highly bonded sand containing 83-93% silica 3-10% alumina, and other oxide components dispersed as clay-like minerals, adding a temporary binder and shaping and firing. The siliceous mineral may be quartzite, sandstone, silcrete, flint, chert, sand or a silica conglomerat.  A nickel catalyst containing 2-10% nickel oxide is made by incorporating nickel oxide or a precursor thereof, with or without a magnesium or alkali or alkaline earth metal compound as promoter, in the preparation of the support e.g. by impregnating the shapes with aqueous nickel nitrate and firing at 500-600 DEG C.
Patent GB-1048562-A (GB)
Title: Improvements in or relating to refrigeration systems
IPC: F25B31/00
Filed: 1963-07-08
Abstract: 1,048,562. Refrigerating. DANFOSS A/S. July 8, 1963 [July 12, 1962], No. 26978/63. Heading F4H. In a refrigerating system comprising a hermetically encapsulated compressor 1, the interior of the capsule constituting a suction chamber for the compressor, condenser 3 and evaporator 7 a line 10 is provided for conveying refrigerant from the outlet side 4 of the condenser to the interior of the capsule to cool the compressor. The line 10 includes a capillary tube 11 having a portion 12 which is in thermal contact with a heater 13, the latter being controlled by a bimetallic switch 14 mounted on the motor-compressor casing. When the heater is switched on a vapour-block occurs in line 10 to prevent refrigerant flow therethrough and when the heater is switched off in response to a predetermined temperature rise at the switch 14 refrigerant from line 10 expands directly into the interior of the capsule. The capillary 11 is of such size relative to the main capillary 5 that most of the refrigerant flows through the latter. Instead of a capillary, line 10 may include an expansion valve which is thermostatically controlled in accordance with the temperature of the motor-compressor casing or of the motor windings or compressor directly.
Patent GB-917915-A (GB)
Title: Method of and apparatus for corrugating sheets of fibrous cement
IPC: B28B1/52
Filed: 1961-07-26
Abstract: 917,915. Corrugating cement - sheets. EURASBEST A.G. July 26, 1961 [July 29, 1960], No. 27080/61. Addition to 892,691. Class 87(2). Sheets of fibrous cement are corrugated by first forming preliminary corrugations and then corrugating them as described in the parent Specification. The preliminary corrugations are formed either by placing the sheet on a conveyer band 22 having longitudinal ribs 23 and transferring it to a suction box 1 see Fig. 5 (not shown) using a suction die 24, or by using a smooth conveyer band 22a and a suction die 26, which operates in the same way as the suction box 1 described in the parent Specification but has two suction cylinders 35, 36, one designed for weak suction for picking up and holding the sheet and the other designed for strong suction for producing the preliminary corrugations, these are shallower and further apart than the desired final corrugations. While the suction die 26 is being raised after placing the sheet on the suction box, tension springs 34 which hold the flexible layer 31 taut, are kept in their extended position by a blocking arrangement, Fig. 8 (not shown) to prevent the preliminary corrugations from being destroyed.
Patent GB-727072-A (GB)
Title: Improvements in or relating to the production of powdered fish
IPC: A23L17/10
Filed: 1952-10-28
Abstract: In making fish powder which, for example, is free from unpleasant odour and taste, fish is extracted with boiling ethyl alcohol.  The extracted fish may be dried by sucking air through it and it may then be ground and sieved.  The extraction may be performed in successive stages and the extracted fish may be dried between stages.  The fish may be kneaded in the boiling alcohol and the liquid may then be removed, preferably under vacuum. Prior to the alcoholic extraction, the fish may be dehydrated by extraction with acetone, at 50 DEG C. in one or several stages.  Ethyl alcohol or acetone may be distilled from the respective extracts and re-used.  Water and oil in the remaining liquor may be separated by decantation.  Extracts from the third and any following stages of alcoholic extraction may be used, as they are or fortified with alcohol, to extract fish.
Patent GB-191474-A (GB)
Title: Improved manufacture of rubber road-facing, rubber-flooring, rubber-tiling or other rubber-lining
IPC: E04F15/10
Filed: 1921-10-12
Abstract: 191,474. Cresson, L. Oct. 12, 1921. Composite blocks, slabs, and tiles for paving, flooring, and like purposes consist of a lower layer of mineral or fibrous materials mixed with rubber latex or plastic coagulum, and an upper layer of latex, coagulum, or rubber mixture, the whole being vulcanized together. The basic materials, which may be leather, wood, sawdust, sand, clay, cement, trass, asphalt, earth, stone, granite, slag, or metal filings are mixed with latex or coagulum, to which vulcanizing, colouring, or filling materials may be added, and moulded under pressure into blocks &c., which may be partly vulcanized before the facing layer is applied. Examples of compositions are given.