baber/WOPTO huggingface dataset:
Patent GB-813687-A (GB)
Title: Improvements in or relating to torque transmitting device
IPC: B25B23/14
Filed: 1955-10-11
Abstract: 813,687. Screwing-up screws. LIVERMONT, F. W. Oct. 11, 1955 [Oct. 14, 1954], No. 28934/55. Class 83 (3). [Also in Group XXIV] A screwing-up tool comprising an overloadclutch has a tool-holder 14 rotatably supporting collars 23, 24 separated by torque-transmitting balls 29 engaging depressions 27, 28 in the collars. The collars and balls are pressed together by a spring 17. A sleeve 36, splined to the holder 14 by balls 38, has clutch-jaws 44 engageable with clutch-jaws on the collar 23 under the action of a light spring 41. Friction locking-balls 49 in radial holes in the holder 14 engage the bore of the sleeve 36 and a piston 45 located in an axial bore 13 of the holder 14 and acted upon in opposite directions by springs 46, 47. A driving member 10 has clutch-jaws 35 engageable with clutch-jaws 34 on the collar 24 and carries a cylindrical post 12 slidable in the bore 13. In operation, the member 10 is rotated continuously. When the tool 16 is applied to the work the clutch-jaws 34, 35 are engaged and the post 12, acting through the spring 47, moves the piston 45 so that a conical surface 48 thereon moves the locking balls 49 to frictionally grip the bore of the sleeve 36, and the tool 16 is rotated. When a predetermined torque is reached the balls 29 ride out of the depressions 27, 28 and engage in the next pair of depressions. During this movement the collar 23 and sleeve 36 move axially to compress the spring 41. The collar 23 immediately returns to its original position, but the sleeve 36 does not return as it is locked in its forward position by the balls 49. Thus the clutch-jaws 43, 44 are separated and the sleeve 36 and tool-holder 14 stop rotating. When the tool 16 is removed from the work the spring 47 separates the clutch-jaws 34, 35, and allows the piston 45 to release the locking- balls 49 so that the sleeve 36 moves to reengage the clutch-jaws 43, 44 and the tool is ready for use again. In a modification, the sleeve 36 is integral with the collar 23 and has a radial recess to receive a locking-ball to hold the collar 23 disengaged upon excess torque. In another modification the locking-balls 49 are replaced by a leaf-spring locking device. In a further modification the tool is clutched to the collar 24, and the member 14, instead of carrying the tool, is connected to the driving member.
Patent GB-462187-A (GB)
Title: Improvements in sealing devices for rotary shafts
IPC: F16J15/34
Filed: 1935-10-21
Abstract: 462,187. Lubricators. MACDONALD, A. Oct. 21, 1935, No. 28938. [Class 12 (iii)] [Also in Group XXVI] Oil is circulated between a stern tube 1 and a propeller shaft 2 from an overhead tank 29. An inlet pipe 30 has an end leading to the space between the tube 1 and the shaft 2 in the region of the downward oil swirl, and a return pipe 31 has its lower end located in the region of the upward oil swirl. The temperature difference between the oil entering and leaving the stern tube aids the circulation.
Patent GB-1479669-A (GB)
Title: Vacuum pump
IPC: F04D19/04
Filed: 1974-06-28
Abstract: 1479669 Bearings MASCHINENFABRIK AUGSBURG-NURNBERG AG 28 June 1974 [21 July 1973] 28949/74 Heading F2A [Also in Division F1] In a vacuum pump, e.g. a turbomolecular pump, having a rotor 1, Fig. 1, for withdrawing fluid from an inlet chamber 21 and discharging it through outlets 18, the rotor is supported within the pump housing solely by magnetic force without mechanical contact between the rotary and stationary parts. The embodiment shown includes radial and axial magnetic bearings, the radial bearings comprising three or four circumferentially-spaced U-shaped laminated cores 4 and associated windings 13 and an annular laminated core 7, whereas the axial bearings comprise laminated cores 8 and windings 16. In order to maintain the rotor in its central position, inductive or capacitive pickups or field sensors may be provided to measure the gaps 23, 24 and cause the magnetic force to be adjusted accordingly. The cores 8 and windings 16 may be eliminated, the opposed surfaces of the cores 4, 7 then being inclined to the rotor axis. The cores 4 and windings 13 may be replaced by an annular iron member having radially-inwardly projecting teeth 4<SP>1</SP>, Fig. 2, each surrounded by a respective winding 15. A drive motor 2, 3 is provided. Reference has been directed by the Comptroller to Specification 1,413,835.
Patent GB-601096-A (GB)
Title: Improvements in and relating to radio direction-finding systems, particularly for use at high-frequency
IPC: G01S3/06
Filed: 1945-11-02
Abstract: 601,096. Radio direction-finding. CRAMPTON, C., STRUSZYNSKI, W., and WRIGHT, C. S. Nov. 2, 1945, No. 29089. [Class 40 (vii)] In a direction-finder wherein a vertical sense aerial is mounted on a metal mast above and coaxially with a directional aerial system, the effect of currents flowing in the mast upon the sense aerial is neutralized by the provision of an insulated counterpoise symmetrically disposed about the mast and of a'variable capacitative coupling between the mast and the sense aerial and/or the counterpoise. In the embodiment described, a pair of electrostatically screened crossed loops (which are consequently not affected by the currents flowing in the mast) is mounted at the top of a metal mast and a vertical sense-finding aerial is mounted coaxially with them. The loops are connected to the stator coils of a goniometer and the sense aerial is coupled in series with the goniometer rotor coil through an aerial transformer. The counterpoise P which comprises four rods sloping downwards at 45 degrees and joined at their ends by four horizontal rods is connected to the primary of the aerial transformer T as shown, the equivalent circuit diagram, Fig. 3a. Phasing resistors are connected on either side of the primary of the transformer T. The counterpoise P is coupled, by a variable capacity C1, to the mast M, in which currents are flowing due to induced E.M.F.'s represented by E. The capacities between the sense aerial A and the earth and the mast are represented by C2 and C3 respectively and the capacities between the counterpoise and ground and the mast (other than the added condenser C1) by C4 and C5 respectively. This equivalent circuit diagram can be drawn in the form shown in Fig. 3b, whence it is seen that by suitably adjusting C1 the current flowing in the primary of transformer T due to voltages induced in the mast can be balanced out. If desired, a variable capacity may also be added between the aerial and the mast in parallel with C3. Remote control gear may be provided to enable the setting of the condenser to be adjusted more readily..
Patent GB-149877-A (GB)
Title: Improvements in and in connection with safety razors
IPC: B26B21/50
Filed: 1919-11-22
Abstract: 149,877. Wells, A. W. Nov. 22, 1919. Stropping - apparatus.-A safety-razor f o r double - edged blades comprises a frame, Fig. 1, fitted with guard rollers f and mounted on a handle part e<1>. The blade is held between a top plate b and a setting-plate d, both curved, and is held in position by the usual side projections and centre threaded projection depending from the top plate. The centre projection is engaged by the threaded stem e<2> of the lower handle part, which has a threaded sleeve e<3> turning loosely on the stem, so that, by adjustment of the sleeve, the blade can be lowered from the shaving position to rest on the guard rollers for stropping. For the latter purpose, a train of wheels, two of which have projecting spindles to engage the hollow guard rollers, is contained in a casing h, Fig. 12, and can be attached to the end of the frame and operated by a detachable handle.
Patent GB-1080093-A (GB)
Title: Improvements in or relating to the mashing of grains
Inventor: STOWELL KEITH CHRISTOPHER
IPC: A23L7/20
Filed: 1965-07-09
Abstract: In a mashing procedure for making wort, there are introduced into the mash "grains" comprising an admixture of a starch-containing flour and a starch-degrading enzyme.  The "grains" may consist of 75% - 95% of wheat flour admixed with 25% - 5% of ground highly diastatic malt, such that the quantity of flour as a proportion of the grist in the mash to which the "grains" are added, is between 15% and 20%, preferably 18.75%. A bacterial or fungal amylase preparation may replace the highly diastatic malt as the starchdegrading enzyme.  The "grains" may incorporate an additive e.g. formaldehyde or a polymer of formaldehyde which will remove, at least in part, anthocyanogens from the wort.  The term "grain" covers biscuits, slabs, cakes (whether broken into crumbs or not), fingers, rods (whether broken into short lengths or not), granules, pellets, grains and seeds prepared by compressing the mixture of flour and enzyme without added water.  Grains of length and of diameter between 0.125 and 0.1875 of an inch are preferred because they approximate to the size of natural grains e.g. barley malt.  The "grains" should have a minimum overall size of 0.125 inch.
Patent GB-618001-A (GB)
Title: Drilling motion indicator for a cable tool drill
IPC: E21B47/00
Filed: 1946-10-01
Abstract: 618,001. Well boring. KENDRICK, J. F. Oct. 1, 1946, No. 29253. [Class 85] [Also in Group XXXVII] To indicate the instant of impact of a cable tool drill with the bottom of a bore as well as the upward impact of the jars and rotation of the swivel, there is secured in the vicinity of the tool string an impact switch 33 which opens an electrical circuit connected to an indicator on the surface. The circuit comprises a battery from which current flows through an indicator to a fixed brush in contact with a collector ring and thence to an insulated wire built up in the drill cable to the switch. The return circuit may be another insulated wire in the drill cable or earth return. The switch may be either secured to the base of the swivel spindle 31 of the tool string or to the cable.
Patent GB-1243432-A (GB)
Title: Flow controlling system for cooker
Inventor: MENCACCI SAMUEL ALFRED
IPC: A23L3/00
Filed: 1969-06-10
Abstract: 1,243,432. Sterilizing apparatus. INTERNATIONAL MACHINERY CORP. S.A. 10 June, 1969 [20 June, 1968], No. 29316/69. Heading A2D. In a hydrostatic cooker comprising a processing chamber with vertically extending legs and a drivable endless conveyer having carriers thereon for moving containers through the chamber, there is provided a protective system to maintain the sterilizing medium in the cooker in a balanced condition and under superatmospheric pressure, which system comprises a series of baffles connected to the chamber walls and inwardly projecting to terminate adjacent the path of movement of the carriers. The baffles are arranged to cause a pressure drop in response to a flow of the fluid past the baffles and to prevent an uncontrollable flow of fluid from the leg by reducing the flow to a manageable rate. A pressure controller is connected to the opposite ends of the series of baffles to detect the pressure drop, and this controller is connected to a control means which operates, on detection of a pressure drop, to direct a quantity of fluid to the low pressure side of the baffles to return the fluid in the processing chamber to a balanced condition. An embodiment of the invention is shown in Fig. 1 wherein a hydrostatic cooker comprises an inlet housing 20, sterilizing housing 34 and air lock housing 36 each provided with a protective system 10 in the form of a series 70, 71, 72 and 73 of spaced baffles 74. Each series of baffles has a diaphragm type pressure controller 76 (Fig. 2, not shown). Each controller 76 comprises upper and lower portions 77, 78 connected by conduits 82, 83 to each end of the series of baffles. Each controller is provided with switches S1-S8 connected to a control circuit (Fig. 3, not shown). In operation, for instance to maintain the desired fluid level in inlet housing 20, a drop in the level will cause a pressure imbalance which will cause fluid to flow past the series 70, 71, 72 and 73 of baffles creating a pressure drop in each case, which pressure drop activates the various diaphragm controllers closing switches S1, S4, S5 and S8. These switches are connected in series to solenoid valve V2 (Fig. 3, not shown) and closing of these switches opens this valve resulting in a quantity of fluid being added to housing 20 from the reservoir 90. The head of fluid in the discharge housing 48 and the air supply flow into the air lock housing 36 may be maintained in a balanced condition in a similar manner.
Patent GB-1196816-A (GB)
Title: Coloured Concentrates for Mass-Dyeing of Moulded Polyolefin Products.
Inventor: ONDREJMISKA KOLOMAN
IPC: C08J3/22
Filed: 1968-06-20
Abstract: 1,196,816. Colour concentrates for polyolefins. VYZKUMNY USTAV CHEMICKYCH VLAKEN NO SVITE. 20 June, 1968 [21 June, 1967], No. 29350/68. Heading C3P. Colour concentrates for colouring polyolefins comprise 96 to 30 weight per cent of a polyolefin, 2 to 25 weight per cent of a pigment, 2 to 25 weight per cent of a polyglycol and optionally 0À5 to 20 weight per cent of a phosphite ester, the weight ratio of pigment to polyglycol together with phosphite if present being 1 to 0À3 to 1 to 2À5. The polyglycol may be a polymer or copolymer of ethylene glycol or propylene glycol. The concentrates may be added to polyolefins prior to extrusion into films and filaments. Examples describe concentrates comprising pigments and (1) polypropylene and polyethylene glycol, (2) polypropylene, polyethylene glycol, calcium stearate, styrenated phenol phosphite and a polyphenolic antioxidant, (3) polyethylene and an ethylene glycol/propylene glycol copolymer and (4) polypropylene, polyethylene glycol and tris-(nonylphenyl) phosphite.
Patent GB-713468-A (GB)
Title: Improvements in the production of cellular hydrated calcium silicate products
IPC: C04B28/20
Filed: 1951-12-14
Abstract: In the production of aerated calcium silicate hydrate products of low apparent density and low wetting and drying movements, there is employed a mixture of finely-divided calcareous and siliceous materials and a lightweight aggregate of apparent density not greater than 80 lb. per cubic foot capable of contributing to the strength of the product by its own strength or by its combination with the calcareous material, the siliceous material, or both, under the curing in steam at a pressure of 100-200 lbs. per sq. in. undertaken as a final step in making the products.  The lightweight aggregate is exemplified by pumice, clinker, expanded perlite, expanded shale, expanded clay, foamed slag.  A foamed aqueous solution of foaming agent may be injected into an aqueous slurry of the calcareous and siliceous materials and the aggregate, or the aggregate may be added to a slurry of the calcareous and siliceous materials already injected with such foam, and the mixture cast in moulds, or the aggregate, preferably damped, may be placed in moulds and a slurry of the calcareous and siliceous materials already injected with such foam may then be poured in.  During preparation of the mixture, the temperature may be elevated to not more than 75 DEG C.  Pre-setting is allowed to take place; to accelerate pre-setting the temperature may be gradually increased to 90 DEG C., a humid atmosphere being maintained. Curing may be for 14 hours at 140 lb. per sq. in. in steam pressure.  Specification 492,728, [Group IV], is referred to.
Patent GB-276535-A (GB)
Title: Improvements in or relating to disc or like holding cabinets, or receptacles
IPC: A47B81/06
Filed: 1926-11-22
Abstract: 276,535. Kaufmann, B. Nov. 22, 1926. Cabinets.-In cabinets wherein records are stored on edge on a sloping shelf c behind the front wall b, and are normally retained by spring-actuated levers, the said levers h<1> project through the sloping shelf and are operated by a removable handle or key k which can be inserted into separate holes l in front of each lever, or into a slot common to all the levers extending across the front wall b.
Patent GB-225886-A (GB)
Title: Improvements in inking mechanism for printing machines
IPC: B41L19/02
Filed: 1924-12-08
Abstract: 225,886. Winandy, G. V. Dec. 6, 1923, [Convention date]. Ink-ribbon mechanism. - The Specification as open to inspection under Sect. 91 (3) (a) comprises also ink-ribbon mechanism for a duplicator consisting of means for connecting the ribbon to its drum and actuating means for unwinding it. The drum consists of a tube 37, Figs. 11 and 12 (Cancelled), narrowed down at its ends, which have square openings engaging a square shaft 38 so that the drum may be adjusted transversely. The ribbon 39 is attached to a wire 40 held inside a longitudinal slot in the drum. The catch which turns the pinion on the shaft of the ribbon-carrying drum each time the carriage reaches the end of its travel is provided with two spurs for the purpose of unwinding the ribbon more rapidly. This subject-matter does not appear in the Specification as accepted.
Patent GB-1381400-A (GB)
Title: Semi-conductor device
IPC: H01L25/11
Filed: 1972-06-23
Abstract: 1381400 Semi-conductor devices BBC BROWN BOVERI & CO Ltd 23 June 1972 [25 June 1971] 29504/72 Heading H1K A semi-conductor device, e.g. a surge diverter with at least two series opposed diodes retained in a common housing (not shown), and provided with pressure contacts 9, 10 comprises a wafer of, e.g. Ge or Si having three npn layers 2, 3, 4 separated by PN junctions 5, 6; the edges being bevelled. Dished inserts 7, 8, e.g. of Ag are applied to the faces and overlap the ends, and the remaining space is filled with, e.g. a synthetic resin 11, to protect the PN junctions. Metal discs 9, 10 of, e.g. Mo, Wo, Ta, Cu or Cu alloys exert symmetrical pressures on the inserts 7, 8, and their contact faces are coated with, e.g Ni. In manufacture the surfaces of a monocrystalline n doped Si wafer may be p-doped with B by ampoule thermal diffusion to a boundery concentration of at least 10<SP>19</SP> atoms/ cm.<SP>3</SP> and a concentration of 10<SP>16</SP> atoms/cm.<SP>3</SP> at 35Á depth, after which the p-doped zone is removed from the edges which are then bevelled and etched. Thereafter the wafer is clamped between inserts and the edge spaces filled with synthetic resin. The wafer is slidably clamped between pressure contacts, and plural such wafers may be assembled in series cascade with interconnecting metal electrodes similar to discs 9, 10 under pressure in a spring loaded clamping frame (Fig. 2, not shown).
Patent GB-762922-A (GB)
Title: Improvements relating to radio receivers with automatic station-selecting means
IPC: H03J7/18
Filed: 1954-10-13
Abstract: 762,922. Automatic tuning of radio receivers. DAIMLER-BENZ AKT.-GES. Oct. 13, 1954 [Oct. 13, 1953], No. 29564/54. Drawings to Specification. Class 40(5) In a radio receiver in which upon operation of a switch the tuning is automatically driven to the next signal having a strength exceeding a predetermined value, the volume control of the receiver is coupled electrically or mechanically to a. control which varies the predetermined value. The coupling maybe either such that the predetermined value increases or decreases as the volume is increased.
Patent GB-379141-A (GB)
Title: An improved electrolyte for galvanic dry cells of the manganese dioxide type
IPC: H01M6/06
Filed: 1931-10-26
Abstract: 379,141. Galvanic batteries. PALA, J. J., 875, Netovicka, Slany, Czecho-Slovakia. Oct. 26, 1931, No. 29663. [Class 53.] The electrolyte of a dry cell having a manganese dioxide depolarizer consists of a gelatinous mass formed by the action of the hydroxides of the alkali metals on an aqueous solution of salts of the alkaline-earth metals or of magnesium, for example magnesium chloride. A small quantity of a mercury salt of an organic acid such as hydrocyanic acid may be added. Additional thickening agents may be used such as meal having a large content of gluten, and a small amount of aluminium oxide.
Patent GB-854215-A (GB)
Title: Improvements in and relating to electric control systems
Inventor: ASBURY ALLAN
IPC: G01G11/04
Filed: 1956-09-28
Abstract: 854,215. Automatic - control systems. ENGLISH ELECTRIC CO. Ltd. Sept. 26, 1957 [Sept. 28, 1956], No. 29675/56. Class 38 (4). An electric control system for controlling a physical characteristic of a continuously moving material comprises : (i) regulating means to vary the physical characteristic ; (ii) detecting means positioned beyond (i) in the direction of motion and giving a signal proportional to the physical characteristic; (iii) reference means producing an adjustable reference signal; (iv) comparison means giving an output proportional to the difference between (ii) and (iii) and having an input time constant equal to the time for travelling from (i) to (ii); (v) actuating means, responsive to the signal from (iv), which adjusts the regulating means; (vi) interrupter means to intermittently operate (v) at a predetermined frequency. Two embodiments are described, the physical characteristic in one being the weight of material of a conveyer and, in the other, being the thickness of steel strip emerging from a rolling mill. Material 11 is supplied from hopper 12 and variable speed conveyer 10 to a constant speed-weighing conveyer 13. Deflection of arm 27, restrained by spring 26, varies the output of differential transformer 28. This voltage output is rectified and applied in series opposition to an adjustable reference voltage from potentiometer 33, the difference error voltage charging capacitor 36. The charging circuit time constant is long to prevent response to random fluctuations. Magnetic amplifier 38 is switched on periodically by cam-operated contacts 40a related to the speed of conveyer 10 and its output controls reversible motor 39. This adjusts rheostat 23 in the speed reference circuit for conveyer drive motor 14, this circuit comprising tacho-generator 21 with its variable field, a potentiometer 22, control rheostat 23, magnetic amplifier 20 and motor control field 14c. The speed of motor 14 is thereby varied to deliver the correct weight per unit length of conveyer. The motors 14 and 15 are supplied by generator 16 and any change of the generator voltage by means of its field control 17 is compensated in the comparison circuit by potentiometer 34 and in the speed reference circuit for potentiometer 22. Furthermore, any desired speed for conveyer 10 may be set into the system by motor field regulator 19 likewise ganged for compensation, in the speed reference circuit to field shunt resistance 24 and in the error comparison circuit to potentiometer 33.
Patent GB-975316-A (GB)
Title: Improvements in or relating to compacts containing diamond and/or boron nitride
IPC: B01J3/06
Filed: 1961-08-17
Abstract: A coherent compact comprising diamond and/or cubic form of boron nitride crystals bonded together in a matrix of boron carbide of formula B4C is made by subjecting the mixture to at least 15,000 atmospheres pressure at 1050 DEG  C. or above in a high temperature, high pressure apparatus.  Specifications 830,210 and 830,743 are referred to.ALSO:<PICT:0975316/C6-C7/1> A coherent compact comprising diamond and/or cubic form of boron nitride crystals bonded together in a matrix of boron carbide of formula B4C is made by subjecting the mixture to at least 15,000 atmospheres pressure at 1050  DEG C. or above in a high temperature high pressure apparatus.  The apparatus comprises (see Fig. 1) a pair of punches 11 and 111 and a die 12 which has an aperture 13 to receive a reaction vessel 14 having a hollow electrically non-conductive cylinder 15 and concentrically positioned therein is an electrically conductive tube 16 containing a specimen material 17. The ends are closed by a pair of electrically conductive discs 18 and end caps 19, each of the latter having a metal ring 20 encircling a non-conductive stone disc 21.  A pair of electrically and thermally insulating gaskets 23 and 24 and a metallic gasket are situated between 11 and 111 and die 12.  The compact obtained may be used in tools, e.g. cutters, grinders, wheels, saws.  Specifications 830,210 and 830,743 are referred to.