baber/WOPTO huggingface dataset:
Patent GB-800077-A (GB)
Title: Improvements in or relating to pressure liquid operated apparatus
IPC: E21F13/08
Filed: 1955-12-30
Abstract: 800,077. Hydraulic jacks. GULLICK, Ltd., and SEAMEN, M. E., [Representative of SEAMEN, T.]. Dec. 18, 1956 [Dec. 30, 1955], No. 37352/55. Class 78 (3). [Also in Group XXIX] A pressure fluid device for progressively stepping forward an hydraulic ram 13 consists of a piston 16 and cylinder 15. Fluid is admitted through a manually-operated valve 27 and inlet port 20 and moves the piston 16 towards the outlet 20a, thereby moving the ram piston 13. When further movement is required valve 27 is closed and valve 30 momentarily opened and piston 16 is forced back to its initial position by spring 21. On the return stroke, fluid is forced from the inlet to the outlet side of the piston 16 via a non-return valve 23 in the piston. A valve in an auxiliary inlet line 28 is provided, so that when the ram 13 meets excessive resistance, it can give by forcing fluid back into the supply main. The operation of valves 27 and 30 may be by remote control means.
Patent GB-619719-A (GB)
Title: Improvements in or relating to refrigerator doors
IPC: F25D23/02
Filed: 1946-12-20
Abstract: 619,719. Refrigerator doors. WESTING- HOUSE ELECTRIC INTERNATIONAL CO. Dec. 20, 1946, No. 37492. Convention date, Dec. 22, 1945. [Class 29] A double walled door for a refrigerator comprises an inner panel of heat insulating material spaced from the outer wall intermediate its peripheral portion and means for applying a bending moment to said panel at its peripheral portion to cause the intermediate portion of said panel to bow in a direction towards the outer wall. The panel is thus prevented from bulging towards the shelves due to expansion on absorbing moisture. An inner wall 24 is formed with a bent periphery 25 and when this periphery is fixed to a flange 16 on the outer wall 15 by screws 18, the panel 24 is bowed as shown in Fig. 3. In a modification the panel 24 may be initially flat and the flange 16 inclined to give the required bow formation. In a further modification the panel 24 may be initially flat and the flange 16 carry an inclined wedge to give the bow formation. In a further modification the inner panel 24 may be shaped as shown in Fig. 7, the portion 25 bearing on flat flange 16.
Patent GB-1261438-A (GB)
Title: Kinematic device for fire control against terrestrial targets with single rate sensor
Inventor: FROHOCK MILLARD MAURICE JR
IPC: F41G5/16
Filed: 1969-07-25
Abstract: 1,261,438. Sights. HUGHES AIRCRAFT CO. 25 July, 1969 [21 Aug., 1968], No. 37558/69. Heading F3C. [Also in Divisions G1 and G4] A gun having a not necessarily horizontal platform rotatable about an axis normal to the platform is provided with a system for fire control against targets moving in horizontal planes, comprising a gyroscope 22 mounted on the platform for sensing the angular rate W A  of the platform about its axis and a pendulum 34 mounted on the platform and connected to a resolver 32 for forming components W A cos# and -W A sin# where # is the angle between the axis and vertical. In Fig. 2, a range sensor 24, time-of-flight calculator 26, wind calculator 44 and ballistic calculator 46 are provided whereby the outputs at D and E represent respectively the azimuthal and elevational gun lead angles.
Patent GB-837861-A (GB)
Title: Reciprocatory scraper mechanism for screen printing machines
IPC: B41F15/42
Filed: 1957-12-04
Abstract: 837,861. Stencilling apparatus. REGGIANI MECCANOTEX S.A. Dec. 4, 1957 [May 21, 1957], No. 37706/57. Class 100(2) In reciprocatory scraper mechanism for screen printing-machines, each of two scrapers 30, 31, is mounted on a corresponding one of two arms 28, 29 of a change-over lever which is journalled 27 on a pedestal 1 adapted to be reciprocated transversely of a surface M to be scraped, and a reversible power-actuated driving member 26 is attached to and is adapted to oscillate a drive-transmitting lever which is also journalled 21 on the pedestal, has two arms 22, 23 extending to opposite sides of a stop 15 on the pedestal, and is resiliently connected to the change-over lever so as to oscillate the latter to bring the scrapers alternately into resilient contact with the said surface while the arms of the drive-transmitting member alternately abut the stop. The scrapers are mounted on the arms 28, 29 by means of bolts 48, 49, each bolt having a shoulder 52 rotating freely in an annular groove in the scraper body and a stem passing through a bore in a guide 50, 51 on the arm. The driving chain 26 is connected to a third arm 24 of the transmitting member. Pivoted to the arm 22 is a rod 34 passing through a bore in a guide 40 on the arm 32 and having slidable on it a collar 46 and a threaded end part 42 engaged by a nut 44, a spring 54 extending between the nut and the collar to urge the collar against the guide 40. The arms 23, 33 are similarly connected. On moving the chain to the right, the transmitting member is first swung counterclockwise until the arm 23 abuts the stop 15, thus compressing the spring 55, releasing the spring 54, and swinging the change-over lever counter-clockwise to bring the scraper 30 against the surface M. Further movement of the chain moves the pedestal 1 along a support 50 and the scraper over the surface M. When the power is released from the chain, the springs 54, 55 equalize their compression, to hold both scrapers clear of the surface. The chain is then moved the opposite way, and the procedure is reversed. The pressure of the scrapers on the surface is adjustable by the nuts 44, 45, and their angle by the bolts 48, 49. Specification 837,860 is referred to.
Patent GB-1467589-A (GB)
Title: Monoazo pigments and a process for their manufacture
IPC: C08K5/22
Filed: 1975-09-15
Abstract: 1467589 Monoazo pigments from barbituric acid and its derivatives CIBA GEIGY AG 15 Sept 1975 [16 Sept 1974] 37773/75 Heading C4P [Also in Division C2] Monazo pigments of the formula wherein R 1  and R 2  are H, C 1 -C 4  alkyl groups, or optionally substituted aryl radicals, R 3  is C 1 -C 4  alkyl optionally substituted by halogen, alkoxy groups containing 1-4 C atoms, or optionally substituted aryl, aryloxy or arylmercapto groups, or is an optionally substituted aryl or heterocyclic radical, X is O or an imino group, Y is O or S or an imino group and X 1  and Y 1  are each H or halogen, alkyl or alkoxy containing 1-4 C atoms or a nitro, cyano or trifluoro methyl group; X 1  and Y 1  must not both be H atoms if R 3  is an unsubstituted alkyl group, and wherein the acylamino group is in the m- or p-position to the azo group, may be prepared by diazotizing the appropriate amine and then coupling. The resulting pigments may be after-treated by heating in an organic solvent (DMF and nitrobenzene in Examples). The pigments may be used in printing inks for letterpress, gravure, offset and flexographic printing and for colouring PVC and polyesters.
Patent GB-348667-A (GB)
Title: Improvements in and relating to resilient shock absorbers
IPC: B60G11/14
Filed: 1929-12-10
Abstract: 348,667. Springs combined with screw mechanism. NAYLOR, E. J., Thuya Cottage, Harefield Road, Uxbridge, Middlesex. Dec. 10, 1929, No. 37898. [Classes 108 (ii) and 108 (iii).] A resilient connection, which may be applied to vehicle suspension systems, includes a differential screw in which the separate screws are reversible and have a minimum angle of 15‹. In the construction shown applied in Fig. 1 to an ordinary vehicle suspension system, a tubular member 34 connected to the axle slides vertically under the control of a helical spring 36 in a casing 35 connected to the vehicle frame. Vertical movements of the axle are transmitted to the helical spring 36 through a reduction gear constituted by a sleeve 39 having internal and external threads of different pitch. The outer threads engage the sleeve 34 and the inner threads a central non-rotatable block 38, the upper end of which engages the spring 36. The initial tension of the spring 36 may be adjusted by a screw 42, while buffer springs 40, 41 at the top and bottom of the casing limit the extreme movement. In the example shown, the outer screw has a pitch angle of 45‹ and the inner screw 30‹. In a modification the central block is integral with the casing 35 and the sleeve bears against the lower end of the spring 36 through a ball thrust bearing. In a further modification, Fig. 4, a sleeve 48 slides non-rotatably on a casing 46 and carries, on a buffer spring 50, a non-rotatable internally threaded sleeve 49 which meshes with the lower end of a sleeve 47, the upper larger end of which is provided with a thread of opposite hand engaging the casing 46. The sleeve 47 supports the upper member 46 by an outer mainspring 51 and composite subsidiary springs 52 which include several springs of different strength arranged in series so that they are compressed solid in succession. The screwed members may be carried resiliently in the main elements. The apparatus may be so mounted and adapted that it may be used in connection with the steering, braking and driving of motor vehicles. To reduce friction rollers may be arranged between the threads.
Patent GB-1155992-A (GB)
Title: Improvements relating to Control Valves for the Control of Water from Water Conditioning Apparatus.
Inventor: OWEN WILLIAM GEORGE SIDNEY
IPC: F16K51/00
Filed: 1966-08-27
Abstract: 1,155,992. Water softeners. SANTON Ltd: 29 Aug., 1967 [27 Aug., 1966], No. 38525/66. Heading B1J. [Also in Divisions 1-2 and F4J A valve device for controlling the supply of water to conditioning apparatus such as an electric storage heater or water softener, and for discharging the delivery into a band basin or sink, comprises a valve 1 controlling the inlet to the apparatus and operated manually through a spindle 12, 16 which passes through an outlet T- piece 4 and an outlet member 10 which simulates a pillar tap. The valve and T-piece are connected by a U- shaped distance piece 6 having bent over ends T secured to the T-piece and the valve. The spindle is in two parts with squared ends connected by a sleeve 17.
Patent GB-1277106-A (GB)
Title: Gas-operated storage water heater
IPC: F24H1/20
Filed: 1969-07-31
Abstract: 1277106 Water heaters GAZ DE FRANCE 31 July 1969 [9 Aug 1968 5 Dec 1968] 38549/69 Heading F4A In a gas operated water storage heater which comprises a heat insulated housing 1, an annular tank 2 and a central tank 4 joined to the latter by pipes 5, 6 and defining therewith an annular flue 7 communicating with a general exhaust duct 12, an auxiliary duct 8 is provided which permits the escape of combustion products from a pilot flame device 9 associated with a burner 10 which is controlled by a thermostat in the annular tank 2, the tank 2 also having inlet, outlet and drain pipes 14, 16, 17 respectively for water. The general duct 12 has a draught regulating device 13 e.g. a diaphragm seal while the end 8b of the duct 8 has a similar device 11 e.g. a diaphragm and/or an inner spiral. In the embodiment of Fig. 1 a mixer 21 supplies gas and primary air, secondary air being admitted through a passage 22. In Fig. 2 an air intake pipe 120 is provided adjacent the general exhaust duct 12 which is connected to a draught box 23 having a deflector 25 to prevent back flows from extinguishing the pilot flame or the burner 10. An excess door 28 is provided to the burner which is supplied with gas through a pipe P.
Patent GB-345330-A (GB)
Title: Improvements in the insulation of electric cables
IPC: H01B3/08
Filed: 1929-12-17
Abstract: 345,330. Fireproofing. LOUDON, N. M. and LOUDON ELECTRIC WIRE CO. & SMITHS, Ltd., 7, Playhouse Yard, Golden Lane, London. Dec. 17, 1929, No. 38605. [Class 140.] An electric cable, more particularly of the type insulated with rubber, bitumen, or the like, is rendered fireproof by coating the insulation with selenium. The selenium coating may be applied to a layer of asbestos, yarn or fibre formed on the insulated cable; the asbestos, which may be admixed with cotton, jute, wool or waste silk, may be applied in the form of a braid and treated with a binder, such as a silicate, gum, resin, gelatine, casein, starch, dextrine, a cellulose ester or ether (excepting cellulose nitrate), either alone or with a plasticizer. The selenium may be mixed with an inert base, such as zinc oxide, kieselguhr, or powdered asbestos, talc, chalk and pumice. The selenium coating may be protected by an outer sheath of textile material impregnated with gelatine or a cellulose ester or ether, other than cellulose nitrate. In the apparatus shown for fireproofing cables, the cable to be treated is drawn from a drum I through an asbestos coating machine 2, under a device 3 which applies a binding agent, and thence through a tank 4 containing powdered selenium and zinc oxide, a paddle 5 being rotated within the tank to create a cloud of the mixture, which settles uniformly on the cable. The cable then traverses a polishing device 6 comprising a plurality of rotating pressure plates, and passes to a take-off wheel 7 and a receiving drum 8.
Patent GB-870583-A (GB)
Title: Method of making electric cables
Inventor: FELLER ROBERT GEORGE
IPC: H01B9/02
Filed: 1958-12-01
Abstract: In making a cable by applying to the conductor a semi-conducting layer of a silicone-base composition including a peroxide curing agent, this layer being partially cured, and then an insulating layer of similar composition (but without a semi-conductive substance), both layers being cured in situ, the silicone base may be a gum having a low mole percentage of vinyl methyl siloxane groups and the curing agent may be di-tertiary butyl peroxide or di-cumyl peroxide. A suitable gum may be a dimethyl siloxane gum containing vinyl siloxanes in which the vinyl/silicon ratio is between 1 : 1350 and 1 : 340; 100 parts by weight of this gum may be combined with 40-70 parts of acetylene black and 4-8 parts of curing agent for the semi-conducting layer, or with 30-120 parts of silica and 1-3 parts of curing agent for the insulating layer.
Patent GB-818192-A (GB)
Title: Production of maleic anhydride derivatives
Inventor: WALKER GEORGE HENRY FRANCIS
Filed: 1956-12-19
Abstract: The invention comprises the production of N-substituted halomaleimides of the general formula <FORM:0818192/IV (b)/1> where X is Cl or Br, and R is an aliphatic, an aromatic or an alicyclic group, by condensing, in solution in glacial acetic acid, the requisite dichloro- or dibromo-maleic anhydride with an aliphatic or alicyclic primary amine, or with an aromatic primary amine, which may be substituted in the aromatic nucleus by up to three chlorine atoms and/or by one nitro group.  The invention also comprises the following compounds: N-cyclohexyl dichloromaleimide, N-butyl dichloromaleimide, N - p - tolyl dibromomaleimide, and N - cyclohexyl dibromo maleimide.  In Example 1, a solution of p-toluidine in glacial acetic acid is added to a stirred solution of dichloromaleic anhydride in glacial acetic acid at a temperature of 77 DEG  C.  When the addition is completed, the mixture is maintained at 80 DEG  C. for 12 minutes.  A precipitate of N-p-tolyl dichloromaleimide is obtained.  In Example 6, a solution of cyclohexylamine in glacial acetic acid is added to a solution of dibromomaleic anhydride at 100 DEG  C., and heating is then continued at 100 DEG  C. for one hour. The mixture is allowed to cool, and the light brown crystals of N-cyclohexyl dibromomaleimide are filtered off.  A list of other halomaleimides, which can be produced by the process, is included in the Specification.  This list includes: N-2,4,6-trichlorophenyl dichloromaleimide, N - 2 - chloro - 4 - nitrophenyl dichloromaleimide, and N-2,4-dimethyl phenyl dichloromaleimide.
Patent GB-1432286-A (GB)
Title: Visual audio frequency comparator
IPC: G01R23/02
Filed: 1974-09-04
Abstract: 1432286 Tuning musical instruments MOTOROLA Inc 4 Sept 1974 [17 Sept 1973] 38711/74 Heading G5J [Also in Division G1] In a frequency comparator for use in tuning musical instruments, a display is provided which displays bars whose position and number indicate phase and frequency of the input signal and gating means supplies two signals alternately to the display. A cathode-ray tube 98 is operated in a split screen mode to display horizontal bars indicating a reference frequency on one half of the screen and a second frequency on the other half (Figs. 3-6, not shown). The horizontal oscillator (e.g. 15,750 Hz) produces a horizontal sweep in the normal way and is also used to drive a pair of parallel connected transistors 64<SP>1</SP>, 66 which pass a square-wave to the base of transistor 62 which thus short-circuits transistor 36 for half of each horizontal sweep. The square wave is also applied to transistors 74, 76 to invert it and passed to transistor 72 to short-circuit transistor 46 during the other half of the horizontal sweep. Consequently signals from one source corresponding to a first note pass through transistor 36 and are displayed on one half of the CRT screen and signals from a second source are displayed on the other half. One source provides vertical synchronization such that the reference signal is displayed as a stationary pattern. If required, the bars. may be vertical and a solid state display may be utilized.
Patent GB-1012414-A (GB)
Title: Fluid pressure braking systems
Inventor: SIMMONS ARTHUR WILLIAM
IPC: B60T15/54
Filed: 1963-10-03
Abstract: 1,012,414. Fluid pressure braking systems. WESTINGHOUSE BRAKE & SIGNAL CO. Ltd. Sept. 15, 1964 [Oct. 3, 1963], No. 38996/63. Heading F2F. A fluid - pressure braking system includes a manually operated release valve which is connected at 9 to the brake pipe and at 7 to a control reservoir and has first means comprising opposed springs 4, 12 which together urge the valve 3 away from its seat 2, second means comprising the piston 10 subjected to brake pipe pressure and effective when that pressure is at its normal, charged, value to overcome the first means and a third means comprising a handle 17 manually operable to move the valve from the seat irrespective of the effectiveness or otherwise of the first and second means. When the braking system is empty valve 3 is open and on charging air flows therethrough from the pipe to the control reservoir until at the fully charged pressure the piston 10 moves down to overcome spring 10 and allow spring 4 to close the valve. Further charging of the control reservoir continues through an alternative path (not shown) in the system. Equalisation of the pressures in reservoir and brake pipe can be achieved by operation of handle 17 to re-open the valve. To release the brakes of the vehicle after it has been separated from the train, the brake pipe pressure being zero, the handle 17 is operated to lift the valve and release the reservoir pressure through the brake pipe, the valve then being kept open independently of handle position by spring 12. The choke 8 prevents a rush of air from forcing down piston 10 to allow the valve to close. In a modification the cylinder 10 is replaced by a diaphragm disposed above the valve and connected by a second passage to a pressure corresponding to the brake pipe pressure.
Patent GB-1477867-A (GB)
Title: Screwdriving tool head and screwdriver insert therefor
IPC: B25B15/00
Filed: 1974-09-06
Abstract: 1477867 Screwdrivers ROBERT BOSCH GmbH G Sept 1974 [8 Sept 1973] 38998/74 Heading B3N A screw-driving tool head 1 insertable by means of hexagonal cross-section part 2 into a socket of a handle or a drive mechanism of a machine for rotation thereby, has retained therein an interchangeable screwdriver insert 5 in the form of an elongate profiled bar of cruciform cross-section formed by four ribs 9-12, the longitudinal axis 8 of the insert being perpendicular to the rotational axis of the head 1 in use. At least one of ribs 9 and 10 is in the form of a screwdriver blade and the other pair of ribs 11, 12 are engaged in matching recesses provided by an aperture 4 in a retaining part 3 of the head. The insert may be locked in position by a slidable sleeve 15 held in position by 0-ring 17. A centring "pip" 13 may be provided on each of blade ribs 9, 10. The insert may be formed by cold-working a chamfered blank (18), Figs. 3a and 3b, not shown.
Patent GB-1013795-A (GB)
Title: Improvements in or relating to regulated electric voltage or current supply arrangements
IPC: G05F3/18
Filed: 1962-10-16
Abstract: 1,013,795. Automatic regulation. SANGAMO WESTON Ltd. Oct. 16, 1962 [Oct. 18, 1961], No. 39152/62. Heading G3X. In a regulating system for deriving a constant value of voltage or current to be applied to a fixed load, a direct current source 10 feeds a first stage comprising a resistor 14 in series with a Zener diode 16 and the voltage across the Zener diode is applied to a second stage comprising a bridge network. The bridge network is formed of resistive arms 22, 24, 26 and a Zener diode 20, and the voltage between points 28 is applied to a third stage comprising a resistor 30 and a Zener diode 32. The load 34 is connected across the Zener diode 32 and it is stated that a function of the third stage is to act as a buffer to preserve the regulating characteristics of the second stage. It is stated that the regulation of the circuit can be improved by enclosing Zener diodes 20, 32 in a constant temperature oven.
Patent GB-960917-A (GB)
Title: Improvements in or relating to compressors
Inventor: DAVISON GEORGE ROBERT
IPC: F04B49/16
Filed: 1961-11-02
Abstract: 960,917. Compressors. BRYAN DONKIN CO. Ltd. Oct. 19, 1962 [Nov. 2, 1961], No. 39312/61. Heading F1N. A compressor is provided with control means for controlling the quantity of fluid discharged therefrom, the control means comprising a plurality of clearance chambers 15 formed within a cylinder head 14 and valve means for successively opening and closing the chambers 15 to or from communication with a cylinder 11 of the compressor whereby the compression ratio of the compressor is varied, the valve means including a control chamber 17 communicating through ports 18 in its wall with the chambers 15, and a valve member 21 which is movable for covering and uncovering the ports 18 in succession, the volume of the control chamber not varying during movement of the valve member 21, whereby the position of the member 12 is unaffected by fluctuations of pressure in the compression cylinder. The movement of the valve member 21 is controlled by movement of a diaphragm 28, the differential pressure across the latter being controlled by a gas governor system (not shown) sensitive to the volume output of the compressor. A dashpot piston 32 damps the oscillations of the valve member 21. The governor system and the diaphragm 28 may be replaced by manual or hydraulic control of the valve member 21. A water cooling jacket 34 may be provided around the chambers 15 or a cooling coil 37 may be introduced into each chamber 15. In a second embodiment, Figs. 2 and 3 (not shown), the valve member 21 is replaced by a hollow cylindrical rotary valve member.
Patent GB-1189905-A (GB)
Title: Weft Mixer Device for Shuttleless Loom
IPC: D03D47/00
Filed: 1967-08-25
Abstract: 1,189,905. Weft mixing device. NORTH AMERICAN ROCKWELL CORP. 25 Aug., 1967 [9 Sept., 1966], No. 39322/67. Heading DIE. In a shuttleless loom a weft mixer is provided which allows two picks of one welt in hairpin form followed by two picks of the other weft in hairpin form. As shown in fig. 2 a cam 33 is rotated from a continuously rotating shaft 24 once every four picks and this cam oscillates a lever 48, a shaft 56 and a segment gear 68 to oscillate a shaft 70 to present a weft to the insertor. The wefts from the spools pass between spring clips 81, through eyelets 85, 86 and partially around a fixer tube 87 to eyelets 88, 89 which, being mounted on the shaft 70, rotate to wind more of the weft around the tube 87. The oscillation of the shaft 56 is limited by stops 58, 59 and an overcentre spring device prevents flyback.