baber/WOPTO huggingface dataset:
Patent GB-1475711-A (GB)
Title: Eutectic alloy and article
IPC: C22C49/08
Filed: 1974-05-10
Abstract: 1475711 Carbide reinforced alloys GENERAL ELECTRIC CO 10 May 1974 [1 June 1973] 20864/74 Heading C7A A unidirectionally solidified anisotropic superalloy composite body based on Ni or Co, contains 2-9% Re, less than 0À8% Ti and 0À1-1À3% C as the matrix with Ta up to 20%, W up to 10% and/ or V up to 10% in the form of aligned monocarbide eutectic reinforcing fibrous phase. Overall compositions for making the bodies are:- Al 2 to less than 8À6% - C 0À1-1% 0À5-1À3% Co up to 10% balance Cr 3 to less than 10% up to 20%  Mo up to 3% - Nb less than 3% -  Re 2-9% 2-9% Ni balance 5-20% Ta 3-15% 7-20% Ti less than 0À8% - V up to 10% - W up to 10% up to 8% apart from incidental impurities in each case. The bodies may be used in gas turbine engines.
Patent GB-1146976-A (GB)
Title: Surge protection circuit
Inventor: MERRETT John
IPC: H02H9/00
Filed: 1965-05-18
Abstract: 1,146,976. Switching surge protection arrangements. MULLARD Ltd. 28 March, 1966 [18 May, 1965], No. 20968/65. Heading H2H. A protection arrangement suitable for use with an electric motor whose speed is controlled by varying the firing point of semi-conductor controlled rectifiers, for example as in the control circuit described in Specification 1,146,977, comprises a capacitor 1 whose charging time is determined by the setting of a switch 4 and which in turn determines the firing instant of a semi-conductor controlled rectifier (not shown) by means of an oscillator circuit comprising a transistor 8, a transformer T and a diode 10, the charging time being increased for a period immediately succeeding the energization of the motor to fire the rectifier late in each half-wave cycle and so reduce the current surges produced by such energization. In the described embodiment the protection is provided for the high speed setting of the motor by using a thermistor 7 having an initially high resistance which rapidly falls to a value corresponding (with that of resistor 2) to the normal speed of the motor on this setting. For the low and medium speed settings conventional resistors 5, 6 are used, since the rectifier fires late for these settings and hence protection is not required. For three high speed settings resistors 5, 6, 7 may be conventional and the resistor 2 may be a thermistor. Other modifications include omitting the resistor 2, shunting the thermistor with a resistor or connecting it in series with a bleed resistor connected to the negative side of the supply. In order to synchronize the timing of the charging of capacitor 1, a Zener diode (not shown) can be connected in parallel with the voltage divider 9 and shunting the capacitor 1, the Zener diode being arranged to conduct on certain portions of a rectified half wave supplied to the circuit.
Patent GB-136620-A (GB)
Title: Improvements in or relating to Cranes.
Inventor: HARBINGER WALDEMAR
IPC: B66C23/52
Filed: 1918-12-16
Abstract: 136,620. Harbinger, W. Dec. 16, 1918. Jib cranes.-The foot of the tubular crane post f rests in an annular recess e in a fixed base b, which is provided with rollers g for taking side thrust and with pulleys c, d. The motors and winding-drums for the luffing and hoisting ropes 10, 16 are contained in a water-tight casing a, which has a collar bearing h provided with rollers j for supporting the post f. Entrance of water to the bearing h is prevented by a cap k and sleeve m. The end r of the hollow jib s is mounted in a knuckle socket p carried by a water-tight bracket n on the post f. A toothed wheel 2 fixed to the post f can be rotated by the motor 3 when it is desired to slue the crane. The drum 11 for the luffing-rope is actuated by hand through the spindle 12, bevel-gears 13, and worm gear 14, 15. The motor 18 actuating the drum 17 for the hoisting-rope can be moved horizontally by the screw gear 26 to drive the drum through either the trains of gears 19 - - 22 or 23, 24, 25, 20, 21, 22.
Patent GB-499790-A (GB)
Title: Improvements in or relating to pigmented cellulose derivative coating compositions
IPC: C08J3/215
Filed: 1937-07-29
Abstract: A water-wet pigment and a water-wet uncolloided cellulose derivative are mixed, in the absence of a solvent or solvent plasticizer, with a water-immiscible organic liquid which has preferential wetting properties for the pigment and is also a non-solvent softener for the cellulose derivative, and subsequently a non-volatile water-repellent material which is a colloiding or gelatinizing agent is added.  The water which separates is then removed.  In a modification, the water-wet pigment, the water-immiscible organic liquid and the colloiding or gelatinizing are mixed, the water which separates is removed, and the product is mixed with the uncolloided cellulose derivative until the latter is colloided and water separates.  In an example (1), wet cellulose nitrate, Chinese blue pigment pulp and zinc oxide are kneaded with blown castor oil, after which dibutyl phthalate is added and kneading continued until there is a separation of water.  After the water has been removed, additional pigment pulp and zinc oxide are incorporated and water again removed.  The final stages of the removal of water may take place under reduced pressure. In another example, (3) wet cellulose nitrate, leaded zinc oxide and water are kneaded first with blown castor oil and then with dibutyl phthalate until water separates. In other examples, (4) wet cellulose nitrate, maroon pigment pulp and blown castor oil are mixed and kneaded with dibutyl phthalate, (5) and (6) wet cellulose nitrate, yellow (or orange) lead chromate pigment pulp and blown castor oil are mixed and kneaded with dibutyl phthalate, and (7) wet cellulose nitrate, carbon black, oil soluble nigrosine (in solvent naphtha) and water are mixed with blown castor oil and then kneaded with dibutyl phthalate.  During the removal of water by the vacuum treatment, it is desirable to add a water-carrier such as petrol, toluene, butyl alcohol or butyl acetate.  Instead of the blown oil used in the examples, also raw or blown cottonseed or coconut oils blown linseed oil, or water-immiscible alcohols such as cyclohexanol may be used. In place of the dibutyl phthalate there may be used cyclohexyl butyl phthalate, dimethyl and diethyl phthalates, tricresyl phosphate, the phthalate esters of ethers of ethylene glycol, or synthetic resin compositions, e.g. coconut oil modified alkyd resin.
Patent GB-297552-A (GB)
Title: Improvements in or relating to razor blades
IPC: B26B21/16
Filed: 1928-03-09
Abstract: 297,552. Turner, H. K. March 9, 1928. No Patent granted (Sealing fee not paid). Razors, safety. - In a safety razor having a guard plate 2, a cover plate 4, and a blade 1 with a plurality of cutting edges, any one of the cutting edges of the blade may be brought into relation with the guard 13 without removing the blade from the holder. The blade, which may be marked with the days of the week, has a central hole 8 fitting upon a pin 10 on the guard plate, and a number of holes 9 each of which may engage, in turn, a pin 12 on the plate 2. The handle 3 is secured to a resilient flap 16 bent out of the plate 2 and providing an aperture whereby the blade 1 may be gripped by the fingers. The plate 2 may have more than one guard 13. In a modification the cover plate 26, Fig. 4, is hinged to the guard plate 25, both plates having spring clasps 27, 28 for clamping them together.
Patent GB-964240-A (GB)
Title: Two-piece wick structure for spinning and twisting rings
Inventor: WAYSON ANDREW JOHN
IPC: D01H7/62
Filed: 1963-05-28
Abstract: 964, 240. Lubricating spinning-rings. MERRIMAN BROS. Inc. May 28, 1963, No. 21236/63. Heading D1D. A spinning-ring assembly comprises a holder 24 detachably carrying a ring of porous material, a wick 28 in and carried solely by the holder to convey oil from a reservoir 16 to a localized area of the holder abutting the ring, and a wick 36 around the ring abutting the wick 28 in said area. Accordingly, the ring can be replaced without disturbing the wick in the holder. The holder wick may pass to the outside of the holder through a bore in the latter, pass for a short distance on the outside of the holder and return through a second bore spaced from the first (Fig. 2, not shown) and the ends of the wick may extend directly into the reservoir or between superposed filter 18, 19 fed by another wick from the reservoir. The ring wick 36 may take one or more turns around the ring e.g. on superposed grooves and lie in contact with the wick 28 where two turns cross over, Fig. 4, not shown.
Patent GB-1285997-A (GB)
Title: Apparatus for deriving a signal proportional to a change-function of phase angle
Inventor: AINSWORTH J D
IPC: G05B11/12
Filed: 1969-04-25
Abstract: 1285997 HVDC Transmission systems ENGLISH ELECTRIC Co Ltd 21 April 1970 [25 April 1969] 21247/69 Heading H2F [Also in Division H3] Apparatus for deriving an output signal proportional to a function of phase # of an A.C. signal, which function is in the form  where K is a gain constant, T 1  ... T n  are time constants, n being at least 2, comprises a phase locked loop having the required transfer function. The transfer function is determined by an amplifier 5 and an impedance network comprising resistors R1, R2, R3, R4 and capacitors C1, C2. When used with a polyphase input signal Fig. 2 (not shown), separate phase comparators are used for each phase, their outputs being combined to provide the required control signal for the locked oscillator. The phase comparators may be the sampling type, Fig. 3 (not shown). The apparatus may be employed in circuits for damping power oscillations in, for example a HVDC link.
Patent GB-391746-A (GB)
Title: Improvements in photographic apparatus
IPC: G03B9/34
Filed: 1931-07-25
Abstract: 391,746. Photographic cameras. GOVAERTS, P., 54, Rue Medori, Brussels. July 25, 1931, No. 21323. Convention date, July 25, 1930. Void [Published under Sect. 91 of the Acts]. [Class 98 (i).] In a photographic apparatus having a shutter formed of two cloth blinds, the contiguous edges of the blinds are provided with metal plates mounted on rods, the rod of the lower blind being connected by cords to the spindle of the upper blind and the rod of the upper blind to a separate shaft within the apparatus. The plate-holder is held in a frame in the back of the apparatus, having grooves in which ribs on the sides of the plate-holder engage, one of the strips forming the grooves being displaceable to permit the release of the plate-holder. In the form shown, as applied to a collapsable reflex camera, the shutter blinds 11, 12, Fig. 2, are provided at the edges with plates 14 and rods 13 and are carried by rollers 9, 10, the rod 13 of the upper blind being connected by cords 10<1> to a roller 77. The metal plate of the lower blind is provided with a pad which sweeps over the surface of the photographic plate. The plate-holder is carried by flanges 22, 23, Fig. 15, in a frame 6<1> mounted on the casing 6 of the camera. The flange 23 is displaceable to release the plate-holder. The operating mechanism for the shutter comprises a pinion 31, Fig. 1, on the axis of the roller 9, meshing with a pinion 32 in mesh with a gear 33 carrying a wheel 34 having notches 35, 36 and an operating button 34<1> bearing abutments B, 42. A catch C on an horizontal rod cooperates with the abutment B to release a hook engaging the rod of the upper shutter. A stop 49 carried by a sliding piece 45 cooperates with the abutment 42, the position of the stop being determined by three teeth on a fixed member 44<1>. A pawl 37 having an enlarged portion adapted to be engaged by the release lever 50, engages the notches 35 or 36 in the wheel 34. Springs are mounted inside the rollers 10, 77 which are coupled together by pinions. For an instantaneous exposure the release lever 50 is pressed, dis. engaging the pawl 37 from the notch 35, the springs then causing the lower blind to descend, rotating the wheel 34 until the abutment B reaches the abutment C, when the hook is released from the upper blind which descends under the action of the spring in the roller 77. For a bulb exposure, the sliding piece 45 is placed between the lower teeth, and the stop 49 then engages the abutment 42 stopping the wheel 34 from rotating until the stop is withdrawn by the release of the lever 50. For time exposures the sliding piece is placed in the middle notch of the teeth, and the stop 49 engages the abutments 42, on operation of the lever 50, when the pawl 37 meshes the notch 36. A second pressure on the lever 50 releases the pawl 37 to complete the exposure. The mirror 7 is raised in all cases by the action of the rod 50.
Patent GB-944309-A (GB)
Title: Polymerisation of organic isocyanates
Inventor: WILD JAMES HARRY
IPC: C08G18/79
Filed: 1961-06-16
Abstract: 944,309. Uretedione derivatives. IMPERIAL CHEMICAL INDUSTRIES Ltd. June 6, 1962 [June 16, 1961], No. 21840/61. Addition to 821,158. Heading C2C. The invention comprises dimeric tolylene-2,6- diisocyanate (viz. N,N<SP>1</SP>-bis (3-isocyanato-2- methylphenyl)uretedione) and mixture thereof with dimeric tolylene-2, 4-diisocyanate. The compounds are prepared by polymerizing tolylene-2, 6-diisocyanate, or a mixture thereof with tolylene-2, 4-diisocyanate, using the process claimed in Claims 1, 2, 3, 5, 6 and 7 of the parent Specification.
Patent GB-136891-A (GB)
Title: Improved Oil Purifier.
Inventor: THIIS JEAN
IPC: C10M175/00
Filed: 1918-12-20
Abstract: 136,891. Thiis, J. Dec. 20, 1918. Filters. - Apparatus for cleaning waste or other oil comprises reservoirs A, B separated by a partition C which is perforated to support wicks D, each wick being placed through two of the perforations, so as to hang below the partition. The oil is heated by gas from a lamp or other heating-medium passed through a flue a<3>. The partition C is supported by means of a cylindrical rim which rests on an inwardly curved part b<2> of the reservoir B. Packing to prevent leakage is held between a flange on the rim and a narrowed cylindrical part a<2> of the reservoir A, which fits into the reservoir B.
Patent GB-585242-A (GB)
Title: Improvements in devices for indicating or recording the tension on endless webs and the like
IPC: G01L5/06
Filed: 1944-11-02
Abstract: 585,242. Indicating tension in webs &c. - BOWATER'S PAPER MILLS, Ltd., WALMSLEY, S. E., and ROBERTS, G. R. Nov. 2, 1944, No.. 21423. [Class 106 (ii)] A device for indicating or recording the tension of an endless web or the like, shown as applied to the wire mesh conveyer belt 1 of a Fourdrinier paper-making 'machine, comprises a tensioning-roller 2 attached to a plunger displaceable in a casing 4 (not shown), compression springs being arranged in the casing, one above and one below an end abutment of the plunger, the casing being slidably mounted and provided with a projection 10 contacting the spring- biassed plunger 11 of an indicator consisting of a finger 20 movable over a scale which is mounted to move with the roller 2 and is displaceable according to the displacement of the roller in space to compensate for varying angles of contact of the web 1 with the roller. The plunger 11 is connected to a bell-crank lever 15 in a casing 12 movable with the roller 2, this' lever being connected by slot and pin means to a carriage 18, slidable in guides 19, carrying the pointer 20 movable over a scale 30 on a drum 21. The roller 2 with the associated plunger can be displaced by the casing 4 by rotating a wheel 14 which operates worm gearing through a shaft 13 to depress the casing 4, a scale 31 co-operating with an indicator 32 registering the position of the roller. Since the pressure applied by the roller 2 is not directly proportional to the tension of the wire 1 on account of the varying angle that the wire makes with the roller as the latter is depressed, the drum 21 carrying the scale is arranged to be rotated as the tension roller 2 is lowered by means of a rope 26 secured to and passing round a pulley 25 on the drum 21. The free end of the rope passes over a pulley mounted on the fixed frame 29 of the machine and is provided with a weight. The drum 21 has a series of inclined graduations 30 or a number of sets of graduations arranged to compensate the reading of the pointer 20 in accordance with the position of,the roller 2. A permanent recording-apparatus such as an inking-stylus engaging a moving chart may be incorporated with the tension indicator.
Patent GB-691098-A (GB)
Title: Cutter for beet toppers
IPC: A01D23/02
Filed: 1951-09-13
Abstract: 691,098. Beet-topping machines. NIELSEN, V. L. Sept. 13, 1951 [Sept. 26, 1950], No. 21525/51. Class 6(iii) A beet-topping knife comprises a thin, downwardly-convex metal plate 29 sharpened along one edge 31 and provided along another with curved reinforcement 30. The knife is carried by an arm 28 supported, together with a driven feeler wheel 16, upon a pivoted arm 14. Lateral guides 34 precede the topping mechanism.
Patent GB-584039-A (GB)
Title: Improvements in or relating to firearms
IPC: F41A9/55
Filed: 1944-11-03
Abstract: 584,039. Automatic guns. BIRMING- HAM SMALL ARMS CO., Ltd., and PERRY, C. A. Nov. 3,.1944, No. 21533. [Class 92 (ii)] An automatic gun is provided with a movable member 23 which supports the front end of a cartridge case during part of its rearward movement upon retraction of the breech-block 7, means being provided for automatically moving the member to its operative position during the rearward movement of the spent case. As shown, the member 23 can slide into and out of a bore below the barrel 1 and is urged rearwardly by a spring 29. A pin 39 engages in a slot 37 in the member 23, thus maintaining a forked-boss 25 on the member in an upright position to support the cartridge cases. In operation, the member 23 is forced by the breech-block into its bore during the firing stroke, the boss 25 then being'accommodated in a recess 41 to enable the breech-block to complete its forward travel. After detonation, the spent case is withdrawn by a claw 11 on the breech-block, and is supported as shown by the boss 25 on member 23 which has been moved rearwardly by its spring 29. As the breech-block nears the end of its rearward travel the open end of the case is dragged over and beyond the boss, and at this time the case meets an ejector finger 15, which is mounted for limited yielding movement in the body of, the gun. The case is ejected through an aperture 17.
Patent GB-467536-A (GB)
Title: Improvements in or relating to safety devices for refrigerating systems
IPC: F25B1/00
Filed: 1936-08-05
Abstract: 467,536. Refrigerating. MOSS, E. W. (Ingersoll-Rand Co.) Aug. 5, 1936, No. 21571. [Class 29] Vacuum machines.-An undue rise of level of liquid in the evaporator 1 of a machine having a centrifugal exhauster 4 actuates a float 17 to open a valve 16 admitting air to the evaporator, thereby overloading and slowing down the exhauster and effecting movement of a cut-out 8 for the driving-motor 5. Damage to the exhauster blades by the impact of liquid is thereby avoided. The cooled liquid is circulated by a pump 11 to a refrigerating- chamber &c. and back to the evaporator by a pipe 2 having a float valve control 13. The valve 16 is arranged in a pipe depending from a vessel 18 which is supplied by a pipe 19 from the liquid seals of the shaft of the exhauster and has a waste pipe 20.
Patent GB-460952-A (GB)
Title: Improvements in or relating to guide members for rock drills
IPC: A47B43/02
Filed: 1936-08-05
Abstract: 460,952. Percussive drills. INGERSOLL-RAND CO. Aug. 5, 1936, No. 21572. Convention date, Oct. 30, 1935. [Class 124] The guide ribs 38 are formed on a detachable member 20 which is secured to the drill casing by bolts 36 causing inclined surfaces 27, 30, to engage, and by the feed nut 48 which passes through the back head 24. The nut is prevented from rotating by teeth 54 on the back head engaging similar teeth 53 on the nut.
Patent GB-825380-A (GB)
Title: Improvements relating to a manually guided rotary hoe
IPC: A01B3/64
Filed: 1956-07-13
Abstract: 825,380. Agricultural implements. KOCH, H., and KOCH, T. [trading as KOCH & SOHM H. H.]. July 13, 1956, No. 21734/56. Class 6(1). [Also in Group XXXI] A manually guided rotary hoe comprises a motor 1 driving hoe blades 11 through gearing 2 and a removable frame 12 on which is mounted a further frame 13 on which is supported a winch 5 driven by a reduction gearing 4 from a chain wheel 14 mounted on the hoe shaft 10. The frame 12 supports a shaft 3 on which wheels 15 are mounted. Cultivators 9 or a plough or harrow are attached to the machine which is propelled forwardly by means of an anchored cable. A further winch may be provided for propelling the machine in the reverse direction. For transport purposes the wheels 15 may be chain driven. Alternatively the wheels 15 may be removed and secured to the hoe shaft 10. For hoeing, cutters 11 are mounted on the shaft 10 and the frames 12, 13 together with the winch are removed and running wheels are mounted in a carrier fastened to the housing of the gearing 2.
Patent GB-614726-A (GB)
Title: Improvements in or relating to the art of bending and tempering sheets of glass
IPC: C03B27/052
Filed: 1946-07-22
Abstract: 614,726. Bending and tempering glass sheets. PILKINGTON BROS., Ltd., BIRD, G. W. T., and DENNETT, J. July 22, 1946, No. 21849. [Class 56] An apparatus for bending and tempering a glass sheet 4 at the same position comprises two frames 8 carrying shaping elements 7 projecting, horizontally in the form shown, therefrom. The elements 7 of one frame are complementary to those of the other and are profiled to the shape to be imparted to the sheet. After the sheet has been heated to near its softening temperature the frames are moved inwardly so that the elements 7 engage and shape the sheet, the frames then being caused to recede from the sheet. During movement of the frames the elements 7 pass through gaps or depressions between the jet tubes 5 of quenching grids 1 and after the elements 7 have been withdrawn from the sheet, quenching fluid is supplied to the jets and the grids may be reciprocated in their own planes or caused to traverse a closed circuit. The fluid supply to the jets may be controlled by a valve opened by the return movement of the frames 8 and the reciprocating or circuitous movement of the jet grids may also be initiated by movement of the shaping elements. The movement of the grids may be stopped by a time switch which may also cut off the fluid supply to the jets. The shaping elements may be independently adjustably mounted on the frames 8.
Patent GB-184795-A (GB)
Title: An improved method of producing sulphides and hydrosulphides of the alkali metals
IPC: C01B17/22
Filed: 1922-08-12
Abstract: Alkali sulphides and hydrosulphides are obtained by causing sulphuretted hydrogen to react upon alkali salts such as sulphates or carbonates in presence of an alkaline earth (including magnesium) oxide or hydroxide, such alkaline earth compounds being employed as yield an insoluble compound as by-product. Examples describe the production of sodium sulphide from sulphuretted hydrogen, lime and sodium sulphate.
Patent GB-1486687-A (GB)
Title: Iron-resin adsorbate
IPC: A61K33/26
Filed: 1975-05-21
Abstract: 1486687 Controlled release haematinic compositions ABBOTT LABORATORIES 21 May 1975 [1 July 1974] 22005/75 Heading A5B [Also in Division C3]  Controlled-release haematinic preparations for oral administration comprise a liquid pharmaceutical carrier having suspended therein an iron adsorbate powder containing 5-12 wt% ferrous ions adsorbed on a sulphonated styrene/divinyl benzene copolymer ion exchange resin, said copolymer containing 1-16 wt% divinyl benzene, the powder being free of particles of diameter above 50 microns. Suitable liquid carriers are aqueous glucose or sorbitol solutions containing glycerol. Suspending agents may be included, e.g. xanthan gum, polysaccharide gums, magnesium aluminium silicate, hydroxypropyl methyl cellulose or sodium carboxymethyl cellulose. The preparations may also contain sweetening and/or flavouring agents, e.g. saccharin and sugar; a stabiliser, e.g. ascorbic acid; and a preservative e.g. a mixture of methylparaben and propylparaben.