baber/WOPTO huggingface dataset:
Patent GB-849406-A (GB)
Title: Improvements in and relating to sintered ferrite magnets
IPC: C04B35/26
Filed: 1959-02-27
Abstract: 849,406. Magnetic compositions. GENERAL MOTORS CORPORATION. Feb. 27, 1959 [April 17, 1958], No. 6895/59. Class 38 (2). A composition for use in ferrite magnets comprises iron and barium compounds which calculated as Fe 2 O 3  and BaO are in a molar ratio of substantially 6 to 1 with a bismuth compound calculated as Bi 2 O 3  constituting 4- 20% of the weight of the composition.. The iron and barium compounds may be oxides or oxide yielding compounds or barium ferrite BaO.6Fe 2 O 3 . The bismuth compound may be Bi 2 O 3  or Bi 2 O 3 .CO 2 .H 2 O. In one example suitable proportions of the ingredients are mixed, ground in alcohol for 16-20 hours, dried, mixed with a paraffin wax/water emulsion, dried and ground to pass a 20-mesh screen. The material is pressed into shape at 15,000-20,000 lb./sq. inch, fired in air at 900 C. for 2 hours, and cooled slowly. The shapes may be reground and the process repeated, the pressed shapes being finally heated in air at a temperature rising by 100 F. every ¢-hour to 700 F. and fired at 1100 C. for 4-5 hours. The final material may be pulverized, mixed with a plastic, e.g. polystyrene, formed into shape, for example by injection moulding, and magnetized.
Patent GB-107364-A (GB)
Title: Improvements in Pilger or Step by Step Rolls.
Inventor: FAIRHOLME FREDERICK CHARLES
IPC: B21B21/02
Filed: 1917-05-15
Abstract: 107,364. Fairholme, F. C., and Warburton, H. May 15, 1017. Rolling.-A pilger roll has the working face only of hard steel, the remainder of the roll being made of mild steel. The working face can thus be replaced when worn or exchanged for one of a different form. As shown in Figs. 1 and 3, the working face is formed on a block a of hard steel having flat faces on its inner circumference to correspond with the flat faces e<1> on the body of the roll. The end collar d<1> is slightly undercut to rec.eive the correspondingly formed side of the block a and the collar d is undercut to receive a wedgepiece g which is tapered circumferentially and may be secured by set-screws. In a modification, the wedge-piece g is dispensed with and both collars are undercut to receive the block a which is made broader at the base and slipped into position circumferentially so that the rolling action holds it in place.
Patent GB-881337-A (GB)
Title: New hydrazinium compounds, their production and pharmaceutical compositions containing them
IPC: C07D215/46
Filed: 1960-02-26
Abstract: The invention comprises compounds of the formulae <FORM:0881337/IV (b)/1> <FORM:0881337/IV (b)/2> (wherein A is an alkylene radical of 2 to 6 carbon atoms, R and R1 are halogen atoms or alkoxy radicals containing at most 7 carbon atoms, R2 and R3 are alkyl radicals of at most 7 carbon atoms and X is an anion bearing the charge n) and salts thereof.  They may be prepared by reacting chloramine or hydroxylamine-O-sulphonic acid with the appropriate tertiary amine. Anions may be exchanged by metathesis.  Examples describe the preparation of 1 : 1-diethyl - 1 -[4 - (7 - chloroquinolinyl - 4 - amino) - amyl]-hydrazinium chloride and the corresponding phosphate, picrate and hexa fluorophosphate, and 1 : 1-diethyl-1-[4-(3-chloro-7-methoxyacridyl-9-amino) -amyl]-hydrazinium chloride and the hydrochloride thereof, and the corresponding picrate, hexa fluorophosphate, citrate, salicylate, phosphate, sulphate and nicotinate and the salts with dipyrone and penicillin G; and a further extensive list of suitable anions X is also provided. Other acid-addition salts mentioned are bisulphates of the type <FORM:0881337/IV (b)/3> and hydrobromides and acid phosphates. Specification 858,488 and U.S.A.  Specifications 2,678,258 and 2,710,248 are referred to.ALSO:Pharmaceutical compositions comprise a compound of the formula <FORM:0881337/VI/1> or a compound of the formula <FORM:0881337/VI/2> (wherein A is an alkylene radical of 2 to 6 carbon atoms, R and R1 are halogen atoms or alkoxy radicals containing at most 7 carbon atoms, R2 and R3 are alkyl radicals of at most 7 carbon atoms and X is an anion bearing the charge n) or an acid-addition salt thereof, in admixture with a solid or liquid pharmaceutical carrier.  Specific examples of X are those listed in Specification 880,974 and these include the penicillinate.  The preparations may also contain alkaline analgesics (e.g. dipyrone) or alkaline antibacterials (e.g. sulpha drugs).  The preparations may be used in the treatment of rheumatism and arthritis. Specification 858,488 and U.S.A.  Specifications 2,678,258 and 2,710,248 also are referred to.
Patent GB-609103-A (GB)
Title: Improvements relating to rotary displacement pumps
IPC: F04C2/08
Filed: 1946-03-06
Abstract: 609,103. Gear pumps. PRECISION DEVELOPMENTS CO., Ltd., and OLAH, G. March 6, 1946, Nos. 6924 and 7416. Drawings to Specification. [Class 110 (ii)] The working chamber bore, in which run gearwheels, is lined with a bearing metal which is easily " run-in " by the rotor or rotors. A mild steel casing ring may have a thin layer of bearing metal or non-metal formed on it, as by casting, sprayirig, or electrical deposition, and the gears inserted and slowly turned to " run-in " the bearing material.
Patent GB-1522781-A (GB)
Title: Battery checker for a camera with a flash light unit
IPC: G03B15/05
Filed: 1977-02-18
Abstract: 1522781 Battery testing in cameras WEST ELECTRIC CO Ltd 18 Feb 1977 [20 Feb 1976 19 July 1976] 06988/77 Heading G2A A camera has a shutter control circuit 1, an electronic flash unit 2 and a battery tester 5; the tester being inoperative when the battery 3 is connected to the flash unit to avoid false indications being given when the flash capacitor is drawing a large current. When a selector switch 6 connects the flash  unit 2 to the battery 3: (a) in Fig. 1 and Fig. 4 (not shown), the tester 5 is automatically disconnected (b) in Fig. 2 (not shown), the test indicator (10) is covered by a slider (11) coupled to the selector switch (6) (c) in Fig. 3 (not shown), depression of a battery test switch (100) is prevented by a slider (11) coupled to the selector switch (6). As shown, the tester has an LED 10 which lights up when the battery voltage is sufficient to operate the shutter circuit 1. In Fig. 4 (not shown) the tester has an adjustable voltage divider (18, 19) so that the tester can indicate whether the battery voltage is sufficient either for the shutter circuit or for the flash unit. In addition, the flash unit has a lamp (23) for indicating when the flash capacitor is charged.
Patent GB-249668-A (GB)
Title: Improvements relating to steam heating apparatus
IPC: B61D27/00
Filed: 1925-03-18
Abstract: 249,668. Barty, T., and Westinghouse Brake & Saxby Signal Co., Ltd. March 18, 1925. Radiators.-Steam heating apparatus for railway vehicles is provided with a thermostatic control of the steam supply, and also with a hand-operated control valve actuated through a pin and slot connection. The heating unit 1 contains a coaxial expansion tube 4, preferably of aluminium, one end being secured to a screwed plug 7 and the other end carrying a plug 10 which controls the aperture 16. The hand-operated valve comprises a cylindrical member 17 having a helical slot 21 engaging fixed pin 22. Rotation of the member 17 by a stem 18 moves the member forward so that the spring-pressed closure member 23 controls the aperture 16.
Patent GB-1105663-A (GB)
Title: Propellant or explosive charges, and method and apparatus for firing the same
IPC: F42B3/195
Filed: 1966-02-21
Abstract: 1,105,663. Cartridge for powered tools. HILTI A.G. 21 Feb., 1966 [9 March, 1965], No. 7453/66. Heading F3A. Consists of a coherent caseless mass 1 of suitable charge material such as 15 to 20% nitroglycerine with or without a binder, and an embedded wire 2 which is exposed at its ends on the surface of the material to make electric contact with parts carried by the tool. The charge is fired by applying a current pulse sufficient to " explode " the wire electrically. Switch 14 is closed in order to charge a capacitor 15 and light a signal lamp 15. Switch 17 is then closed to discharge the capacitor through the wire. The charge is inserted directly in a chamber of the tool. In another embodiment, Fig. 6 (not shown) the charging current for capacitor 15 passes through the wire 2 so that misfiring owing to faulty positioning is avoided The cartridge can be in the form of an elongated cylinder or a disc-like pellet, Figs. 1-4 (not shown). The tool can be a fastener driving tool.
Patent GB-618224-A (GB)
Title: Improvements in or relating to apparatus for preventing or reducing the formation of ice on the air ducts of gas turbine engines
IPC: F02C7/047
Filed: 1947-03-18
Abstract: 618,224. De-icing aircraft. BRISTOL AEROPLANE CO., Ltd., MARCHANT, F. C. I., and BELL, J. E. March 18, 1947, No. 7506. [Class 4] [Also in Group XXVI] The formation of ice on the wings and air intakes of a gas turbine propelled aircraft is reduced or prevented by discharging hot gas from a combustion chamber separate from that of the engine into the air flowing through the intake or over the wind, said combustion chamber being fed with air taken from the compressor of the engine. Hot gases from the combustion chamber 18 are conveyed through a pipe 37 to a hollow elliptical manifold 38 which defines the mouth of the air intake duct 15. The inner surface of the manifold 38 is provided with a plurality of jets 39 in the form of long narrow slits. Air is supplied to the combustion chamber 18 by a pipe 19 from the axial flow compressor 8 and is regulated by a valve 20 controlled by a lever 22. Fuel is supplied by a pump 23 which is driven by a motor 24, the speed of which is controlled by a variable resistance 26 adjusted by a control lever 35. When applied to a power plant comprising two or more engines, a separate combustion chamber is provided for each engine and these are interconnected so that in the event of breakdown of one engine, the intakes associated with it may be heated by the combustion chamber of another.
Patent GB-1338992-A (GB)
Title: Control device double coupling mechanism
IPC: G05G11/00
Filed: 1972-02-17
Abstract: 1338992 Change-speed gear control; clutch brake combinations 17 Feb 1972 [25 Feb 1971] 7506/72 Headings F2D and F2L A coupling mechanism for engaging discs 5 or 6, slidable on a shaft 4, with members 1 or 2 rotating at different speeds, or with one stationary to form a clutch brake, has a first control lever 16 to effect engagement and an auxiliary lever 32 which can override engagement to restore the mechanism to the neutral disengaged state. The lever 16 is held in set positions by a catch 19 and acts through springs 20, on a rod 15, to oscillate a shaft 13 to move a disc 5 or 6 into engagement through a fork 9 and finger 10. The lens 32 acts to move a slide 26 to engage a stop 24 on a bar 23 rotated by the shaft 13 so that the stop 24 moved towards the slide by the engagement movement is restored to the vertical position thus disengageing the engaged disc. This further movement of the shaft 13 further stresses the spring 20 initially stressed to cause engagement so that upon release of the lever 32 the spring 20 restores the original engaged position. A stop 34 holds the lever 32 initially in its inoperative position.
Patent GB-517963-A (GB)
Title: Improvements relating to the supply of blast to blast furnaces
IPC: C21B9/12
Filed: 1938-05-11
Abstract: 517,963. Blast supply to blast furnaces. BRASSERT & CO., Ltd., H. A. (Brassert, H. A.). May 11, 1938, No. 7545. [Class 72] [Also in Groups XII and XXXV] In a method of working blast furnaces changes in the rate of supply of air to the furnace and of the temperature of the air are maintained in a relationship which follows a predetermined characteristic curve. The rate of supply of air is controlled in accordance with the temperature of the air or the temperature of the air is controlled in accordance with the rate of supply of air. Apparatus for controlling the air supply in accordance with the temperature of the air near the tuyeres is shown in Fig. 1. A thermo element 10 in the hot blast main 6 near the tuyeres of the furnace 1 actuates through an electrical relay 11 a throttle valve 7 in the cold blast main 2 leading to the hot blast stoves 3, 4, 5 which communicate with the furnace by means of the hot blast main 6. The thermo element may also be connected to a relay which actuates a valve 8 in a by-pass 9 for admitting cold air to the hot blast main. The relay 11 may control a blower in the cold blast main 2. Fig. 4 shows a modification in which a meter 14 measuring the quantity of cold blast supplied to the hot blast stoves and furnace controls through a relay 15 a valve 8 in the by-pass 9 leading to the hot blast main 6.
Patent GB-1088814-A (GB)
Title: Improvements in rotary well bits
IPC: E21B10/08
Filed: 1966-02-21
Abstract: 1,088,814. Rotary well bits. S. R. KNAPP. Feb. 21, 1966, No. 7598/66. Heading E1F. The cones 16 of a roller bit are mounted with their axes at 39‹ as shown. Each cone has a marginal groove 22 and a cutting edge 23 which cuts to the. full diameter of the hole. The bit body 10 has a.hard facing 24.
Patent GB-164842-A (GB)
Title: An adjustable cramp suitable for horizontal and inclined surfaces
IPC: B25B5/10
Filed: 1920-03-15
Abstract: 164,842. Sands, F. March 15, 1920. Cramps. - A U-shaped cramp 2 is provided with an adjusting-screw 1 in one arm and a member 3 pivoted to the other arm to facilitate attachment to inclined surfaces, the member 3 or the end of the arm being bifurcated for the purpose. A vertical or horizontal boss may be provided on tho upper arm. Reference has been directed by the Comptroller to Specification 15193/03.
Patent GB-712548-A (GB)
Title: Button sewing machine
IPC: D05B85/00
Filed: 1952-03-26
Abstract: 712,548. Operating clutches. AMERICAN MACHINE & FOUNDRY CO. March 26, 1952 [March 26, 1951; March 26, 1951], No. 7738. Class 80 (2) [Also in Group VII] A machine is driven through a friction clutch 173 of which the driven element is belt-connected to a pulley 168 whence all the elements of the machine receive their motion, and the hub of the pulley 168 is engageable in one position-by a tooth on a sliding non-rotatable spring-pressed sleeve 234, whereby the parts of the machine are held in a pre-determined position when not being driven. Actuation of a starting lever momentarily closes a switch to energize a solenoid 262 which actuates a three-armed lever 220, through a lever 252, to move the sleeve 234 to the right, in order to free the machine, and to engage the clutch by means of a rod 216, lever 208, and link 206. The lever is held in the running position by a pin on a pivoted arm 270, which is withdrawn at the end of a cycle of operation of the machine by a solenoid energized by a cam-actuated switch to allow the lever 220 to move with the sleeve 234, when the machine reaches the stopping position, thus disengaging the clutch 173 as the machine is stopped by the tooth on the sleeve 234.
Patent GB-710097-A (GB)
Title: Improvements in and relating to the winding of cops in ring spinning, ring twisting and like machines
IPC: D01H1/36
Filed: 1951-04-04
Abstract: 710,097. Builder motions for ring spinning &c. frames. STAMMWITZ, E. April 4, 1951, No. 7840/51. Class 120(2) In order to provide firm cops that unwind easily, an additional motion is given to a ring rail as the cop noses are being formed by lengthening the stroke and increasing the rate of movement of the rail. This is effected by an axially displaceable control shaft 1 mounted on a rocking lever 11 actuated by a builder cam 5, the shaft 1 having fixed upon it a worm 2a in engagement with a worm wheel 2 rotatably mounted on the lever 11 and fixed to a chain drum 3 to which a chain 4 is attached. Means operated in association with the cam 5 are provided for displacing the shaft 1 during upward movement of the ring rail, causing the worm 2a to rotate the wheel 2 to wind the chain 4 on the drum 3. The shaft-displacing means preferably comprises an eccentric disc 7 rotating at a half the speed of the cam 5 and a lever attached to a hub 8a on the shaft 1 and rocked by the disc 7 to turn the hub 8a, thereby displacing the hub through contact of teeth 9, 10 and displacing the shaft 1.
Patent GB-1093711-A (GB)
Title: Fluid controlling valves
Inventor: SHAND STANLEY GRAPES
IPC: F16K5/20
Filed: 1964-02-25
Abstract: 1,093,711. Valves. SAUNDERS VALVE CO. Ltd. Feb. 24, 1965 [Feb. 25, 1964], No. 7841/64. Heading F2W. The seats of a gate salve or as shown a rotaryspherical valve each consist of a ring 24 sealed to a metal, diaphragm with an annular part 26 embodying a corrugation 27, a tubular part 28 and another annular portion 29. When the connecting flanges 12 are attached to the valve body 11 they engage the corrugations 27 and deflect the diaphragm into a shallow conical-shape by bringing the junction of the corrugation 27 and the part 26 into abutment with a shouldered ring-support 32 that is a separate element or integral with the casing; such deflection which urges the ring into contact with the closure is enhanced by the pressure of the controlled fluid acting on the diaphragm. The closure is rotated by a key and is arranged to float to take up wear, stops may be provided. An 0-ring 34 is disposed between the flange 12 and the diaphragm parts 28, 29 whilst a further and similar ring 37 is arranged between the ring 24 and a tubular portion 36 of the diaphragm leading from the part 36. The rings 24 are of P.T.F.E., silicone rubber or a plastics material based on a linear copolymer of vinylidene fluoride and hexafluoropropylene. The diaphragm is of spring-hard stainless steel or nickel bronze.
Patent GB-870879-A (GB)
Title: Improvements in or relating to battery-operated hand lamps
IPC: F21L4/00
Filed: 1959-03-06
Abstract: 870,879. Electric battery lamps. RAND, S. D. March 1, 1960 [March 6, 1959], No. 7880/59. Addition to 840,435. Class 39(2). The device of the parent Specification is modified by the provision of a hollow cylindrical boss 23 in the base of the saucer 22 in which is a slide 27 movable circumferentially by means of a button 29 moving in a guide slot 30 in the boss so that it can be moved under the handle 26 to retain this raised position in which the lamp circuit is complete when upward pressure on the handle is removed. The slide may have a chamfered end to facilitate sliding movement beneath the handle.
Patent GB-638489-A (GB)
Title: Improvements in electric pulse generator or delay circuit arrangements
IPC: H03K5/145
Filed: 1946-03-13
Abstract: 638,489. Pulse delaying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 13, 1946, No. 7889. Convention date, Nov. 6, 1944. [Class 40 (vi)] A resonant circuit, shock excited by a driving pulse, produces a damped wave train having a negative fraction of a cycle followed by a positive half-cycle, the latter being utilized to produce a delayed pulse. A positive pulse from generator 10, applied to valve 11 causes tuned circuit 12, 13 to oscillate, the oscillations commencing with a negative half-cycle, which is ineffective when applied to thyratron 14, the valve firing at the commencement of the first positive half-cycle. The sudden fall in anode potential is fed over transformer 27 to produce the delayed output pulse. By employing a very short input pulse the negative-going portion of the oscillation set up in tuned circuit 12, 13 may be less than a half-cycle. The delay may be varied by altering the tuning of circuit 12, 13.
Patent GB-724569-A (GB)
Title: Improvements in or relating to visible card indexes and to cards therefor
IPC: B42F17/00
Filed: 1953-03-23
Abstract: 724,569. Visible card indexes. REMING- TON RAND, Ltd. (Remington Rand, Inc.). March 23, 1953, No. 7953/53. Class 146 (1). In a visible index card of substantially exact rectangular shape, having fixing lugs cut out from the card and distorted rearwardly to engage behind flanges of a runway, a gauge marking is accurately applied with the printing of lines in predetermined relation with its edges, the gauge marking bearing a predetermined spatial relationship with the securing or fixing lugs which are die-cut after the printing operation. As shown, the card 1 is printed with a series of vertical column lines 3, a faint or light blue type guiding line 2 and a flattening line 4 in an ink such as black printers ink to resist curling, and at the same time a vertical gauge line 5 and horizontal gauge line 6 are printed. Lugs 7 are cut out of the material of the card and have straight horizontal portions 8 and vertical portions 9 which co-operate respectively with the bottom edge of the next card and the edges of the runways 11, the gauge line 5 being placed to coincide with one of the portions 9 and the line 6 with the portions 8. The cards are then placed in overlapping relation on runways 11 on a panel 10 with any desired title and column heading card 12 and special ruled cards 13 and the whole is photographed to produce the appearance of a printed sheet, the lines 3 appearing to be continuous, the faint or blue lines 2 being non-photographic and the lines 4, 5 and 6 being hidden under the next card.
Patent GB-1028449-A (GB)
Title: Improvements in or relating to unit ventilators
IPC: F15B13/02
Filed: 1965-02-24
Abstract: 1,028,449. Air conditioning. HONEYWELL Inc. Feb. 24, 1965 [Feb. 28, 1964], No. 7957/65. Heading F4V. [Also in Division G3] A pneumatic actuator 14 comprises a diaphragm 55, Fig. 2, which is moved against a spring loading by a control pressure fed to a chamber 60 through an inlet 15 and passages 62, 61. The chamber 60 is also connected through a passage 64 to a chamber 70 on one side of a diaphragm 54 which diaphragm carries a valve closure 72 to control the flow through the passage 64. A connection 31 leads to the chamber 70 while a connection 30 leads to a chamber 80 on the opposite side of the diaphragm. In operation, with the valve 72 open, the diaphragm is not actuated by the control pressure since this pressure flows to the outlet 31. When the pressure differential between the chambers 80, 70 is sufficient to close the valve 72, the diaphragm is then positioned in response to the control pressure. The actuator 14 is used to control dampers 41, 42, Fig. 1 (not shown), in a heating and ventilating system in which the control pressure is supplied in response to a thermostat 11 and the actuator is only responsive to this pressure when a blower is operative to provide the pressure differential to close the valve 72. The control pressure fed to the actuator inlet 15 also passes directly to an outlet 16 connected by a conduit 17 to an actuator 21 which controls a valve 22, this valve controls the flow of heating/cooling medium to a heat exchanger 24. The conduit 17 is also connected to a low temperature thermostat 25. In a modification of the actuator, the valve 72 is carried on a leaf-spring actuated by the diaphragm 55.
Patent GB-203729-A (GB)
Title: Improvements in and relating to vapour lamps and the like
IPC: F23D11/44
Filed: 1922-06-17
Abstract: 203,729. Turner, R. C. June 17, 1922. Vaporizing - apparatus.-A vapour lamp of the type in which the vaporizer f is arranged between and is heated by incandescent mantles k carried by burner tubes j is provided with a pilot jet tube 2 for initially heating the vaporizer. The pilot jet burns air charged with vapour supplied by a valve-controlled tube 1 leading from the fuel reservoir a. The jet tube 2 may be connected to the tube 1 by a union 4 or the tubes 2, 1 may be made in a single piece. The upper part of the tube 2 is preferably packed with asbestos. Specification 4822/04 is referred to.