baber/WOPTO huggingface dataset:
Patent GB-811467-A (GB)
Title: Improvements in transmitters for inductive signalling systems
Inventor: SNEATH OSWALD BARBER
IPC: H04B5/00
Filed: 1956-06-26
Abstract: 811,467. Inductive signalling. MULTITONE ELECTRIC CO. Ltd. June 24, 1957 [June 26, 1956], No. 19800/56. Class 40 (5). In an audio-frequency inductive selective signalling system, comprising a plurality of receivers and a transmitter, both the oscillator and the inductive loop are simultaneously tunable to one of a plurality of frequencies, the tuning of the loop being initially adjusted according to its inductance, which differs with each individual installation. At the transmitter the oscillator circuit, Fig. 2, is selectively tuned by manual operation of switches M, N, P, T, which selectively energize one or more of relays X, Y, Z to operate contacts Y1, Y2, Z1, Z2, X, Fig. 1, to tune the loop L5. The tuning of the loop L5 is initially adjusted by manually operated switch S1, S2. In the oscillator frequencies intermediate to those selected by M, N, P, T may be obtained by manual operation of switches H, J, K, F which also energize one or other of relays WQ to close contacts W1, Q1, Fig. 1, and modify the tuning of the loop.
Patent GB-381603-A (GB)
Title: Improvements in or relating to drill-sharpening machines
IPC: B21K5/06
Filed: 1931-07-10
Abstract: 381,603. Sharpening rock drills. RULE, J., 54, Hughville Street, and HOLMAN BROS., Ltd., both in Camborne, Cornwall. July 10, 1931, No. 19881. [Class 83 (iv).] A drill-sharpening &c. machine has a single fluid-operated hammer movably mounted for performing both the upsetting and shaping or forming operations. The hammer 10 is secured to cross-heads 12 slidable along guide-rods 11 rigidly secured to brackets 18 adapted to be swung about a pivot bolt 19 to bring the hammer into operative position either opposite a dolly 13 for upsetting the end of the drill steel 30 or over a forming tool 15 for shaping its lateral surfaces. In the upsetting operation the steel 30 is clamped between dies 24, 23, the former of which is mounted in a saddle 25 slidable on pins 26 and moved downwards by projections 28 on the swinging brackets 18 when the hammer is swung over to the horizontal position ; the actual clamping is effected by the die 23 which is mounted on the extension 22 of the piston 16 of the clamp cylinder 17 to which fluid is admitted by the pipe 47 from the valve chest 48 by means of the treadle lever 49 and valve 55 moving in a valve bushing 51 provided with ports 52, 53, 54 communicating respectively with the atmosphere, clamping cylinder and fluid supply chamber 148. The hammer 10 is swung over, moved up to the work and its motive fluid supply controlled by a single lever 31 loosely pivoted to one of the brackets 18 and having an arm 32 pivoted to a link 33 working through an eye 34 in the cross-head 12 and fitted with a nut 36 between which and the eye 34 is located a spring 35. Also pivoted to arm 32 is a rod 37 with a cut-away part 41 and incline 42 controlling a valve 39 admitting fluid for operating the hammer. When lever 31 is actuated the link 33 and rod 37 move together until the hammer contacts with the dolly 13 or shaping tool 15, after which the movement of link 33 is arrested but rod 37 continues to move and actuates hammer valve 39. The boss of the lever 31 is provided with a lug 44 and engages its pivot with an elongated hole 43 so that at the end of its swing the lever may be moved bodily to engage the end of lug 44 against a projection 45 on the bracket 18 enabling the hammer to be swung by means of the lever to the vertical position.
Patent GB-668613-A (GB)
Title: Improvements relating to frying apparatus
IPC: A47J37/12
Filed: 1950-08-10
Abstract: 668,613. Cooking apparatus. OBERLANDER, H. Aug. 10, 1950. [Aug. 16, 1949] No. 19924/50. Class 66. [Also in Group VI] Frying-apparatus comprising a main fat container 10 wherein food is fried has an auxiliary container 20 disposed below the heating zone and communicating, under valve control, with the bottom of container 10 for receiving pieces which fall from the food, a strainer 24 in the auxiliary container 20 preventing the return of these pieces if the fat circulates through the containers. Any overflow from the main container 10 is caught in a channel 13 and led through a pipe 15 to a sump or tray 16. The auxiliary container 20 base 22 is secured by a bayonet fastening so that, by closing valve 21 and removing base 22, the auxiliary container may be emptied without emptying the main container. The container 10 may be heated by gas or electric heaters 19 and the food is fried in one or more baskets.
Patent GB-1029173-A (GB)
Title: Improvements relating to electric inductor alternators
IPC: H02K19/24
Filed: 1963-05-20
Abstract: 1,029,173. Inductor alternators. LICENTIA PATENT-VERWALTUNGS G.m.b.H. May 20, 1963 [May 18. 1962]. No. 20007/63. Heading H2A. ' In an inductor alternator in which a twin magnetic structure, defining polepieces in two sets having no direct ferro-magnetic mutual connection, is rotatable relative to a magnetic field structure and an armature winding 13 to cause periodic pulsation of flux produced by the field structure and cutting the armature winding so as to generate an alternating e.m.f. in the latter, the twin structure is a composite rotor disc 8 mounted on the alternator shaft 9 and comprises outer and inner magnetic structures 1, 3, Fig. 1 (not shown), defining respectively radially inwardly and outwardly extending polepieces 2, 4 projecting between each other and of opposite polarity when in use. The two rotor structures are separated by non-magnetic material, e.g. moulding resin or aluminium, and in the embodiment shown the shaft is mounted by ball and needle bearings 10, 11 in a magnetic casing 6 carrying a D.C. energized exciting winding 7; a ring wire of the armature winding 13 may have cast about it an insulating end cover 14 mounting a terminal board 18. In other embodiments the armature unit 12 is disposed axially between the rotor disc and the field structure, the shaft has a double-ended bearing mounting, and the armature winding is printed.
Patent GB-1039614-A (GB)
Title: Process for the manufacture of a foot-and-mouth disease vaccine containing a live virus
IPC: A61K39/135
Filed: 1963-05-20
Abstract: A foot and mouth disease vaccine containing live virus is prepared by the serial passage of a virulent foot-and-mouth disease virus at 36 to 38 DEG C. through embryonic cell cultures containing Hanks' or Earle's solution, lactalbumin hydrolysate serum and embryonic cells obtained by the trypsinization of an organ of an embryo of a hoofed animal, until the virus is so modified that when parenterally injected into a hoofed animal it is non-pathogenic towards the animal and produces in the animal an immunizing action similar to that of the pathogenic virus.  The attenuated virus may then be further cultivated in a primary cell culture containing Hanks' or Earle's solution, lactalbumin hydrolysate, serum and cells obtained by the trypsinization of an organ of a hoofed animal e.g. kidneys of freshly slaughtered calves.
Patent GB-129910-A (GB)
Title: An Improved Screw-nut for Securing a Shade or Gallery on the Socket of an Incandescent Electric Lamp Fitting.
Inventor: FLORY LUCY GERTRUDE
IPC: F21V17/06
Filed: 1918-12-05
Abstract: 129,910. Flory, L. G. Dec. 5, 1918. Shade-holders. - The usual screw nut f for securing the shade or gallery on the socket of an electric incandescent lamp is formed with an extension having an inner flange h or the like engaging the plain cylindrical outer end of the socket so as to constitute a guide to ensure the engagement of the nut f with the threaded part of the socket. The nut f may be formed with flanges k, j at its upper and lower ends, and the lower part of the nut may be gapped to facilitate turning by the fingers.
Patent GB-625092-A (GB)
Title: Improvements in or relating to four-cylinder 4-cycle h-type internal combustion motor unit
IPC: F01B9/02
Filed: 1945-08-07
Abstract: 625,092. Four-stroke H-type engine. MONLEONE, C. Aug. 7, 1945, No. 20225. Convention date, Aug. 19, 1944. [Class 7 (ii)] A four cylinder four-stroke H-type internal combustion engine has a single crankshaft 14 located laterally of the cylinders 3 ... 6 having its axis in the transverse plane of symmetry II-II. The twin pistons 1 and 2 are connected through links 7 and 8 and lever 10 to an oscillating shaft 9 which drives the crankshaft through a link 12 and connecting rod 13. The crankshaft carries a balance weight 15 and is connected through a vertical shaft 19, which may serve as a camshaft, and bevel gearing, Fig. 2, to a . symmetrically arranged shaft 17, carrying an opposed balance weight 16, the two weights constituting a. balancing couple which balances the forces due to the reciprocating twin pistons; Uniform firing intervals are obtained, the firing orders being 3, 4, 5, 6 or alternatively 6, 5, 4, 3.
Patent GB-596963-A (GB)
Title: Improvements in or relating to grinders for textile machinery
IPC: B24B19/18
Filed: 1945-08-08
Abstract: 596,963. Grinders for textile machinery. DRONSFIELD, S. W., and DRONSFIELD BROS., Ltd. Aug. 8, 1945, No. 20259. [Class 60] A grinder for textile carding engines comprises a unit detachable, as such, from the carding engine and including an electric motor and shaft driven thereby for driving the grinding-wheel, the motor frame having a step or extension, which by co-operation with a fixed member takes up driving torque. The unit, which has handles 11, 12 to lift it from open bearings 13, 14 in the machine and has a step lug 16 on the motor frame engaging the bearing 13 to take up torque, comprises a grinding-wheel 1 for grinding the teeth 2 of a textile doffer, or cylinder and flats 3, driven by a shaft 4 of an electric motor 5. The grinding- wheel has a pin engagement 6 with a double helical groove 7 in a shaft 8, coaxial with the driving shaft and driven through epicyclic gearing 10 from a sleeve 9 supporting the grinding-wheel, so that the grinding-wheel is traversed as well as rotated.
Patent GB-238552-A (GB)
Title: Improvements in or relating to automatic stop-motion mechanism for textile machines, particularly applicable to machines for preparing and spinning yarns and threads
IPC: D01H13/16
Filed: 1925-08-12
Abstract: 238,552. Spanjaard, J. Aug. 12, 1924, [Convention date]. Stop-motions, electrical, with method of actuation not specified.-In an electric stopmotion in which an electromagnet operates the device to occasion the stoppage, and the circuit through the electromagnet is broken when the machine stops, a member is moved automatically to break the circuit as soon as the machine stops and is moved automatically to remake the .circuit by a part, the movement or position of which is controlled by the re-starting of the machine. The device is described as applied to a drawing- frame with a belt-drive. On failure of the sliver 2 the rollers 5 come into contact and the circuit through the electromagnet 9 is closed and the stop device operated. The circuit comprises a contact which is kept closed so long as the shaft 7 rotates by the friction of the shaft and the part carrying the arm 8. As the shaft stops, the spring 10 pulls the arms 8 down and the circuit through the electromagnet 9 is broken. In an electrically driven machine the contacts for making and breaking the electromagnet circuit may be controlled by the part operating the motor switch, so that they are closed only when the latter is in its switched-on position.
Patent GB-1474765-A (GB)
Title: Aircraft engines starting system
IPC: F16H61/64
Filed: 1974-05-08
Abstract: 1474765 Engine turning gear KLOCKNERHUMBOLDT-DEUTZ A G 8 May 1974 [10 May 1973] 20337/74 Heading F1K In a device for starting aircraft engines 1, 2 with the aid of a starting motor 14, e.g. an auxiliary gas turbine, the motor is connected to each engine via over running clutches 15 and 17 or 18, and hydrodynamic transmissions, 3, 4, e.g. hydraulic couplings or convertors in parallel with the clutches 17 and 18, the filling of the couplings being controlled via pumps 21, 22 driven by the starter motor, and by control valves 25, 26 which, above a predetermined speed, restrict the torque transmitted by the hydraulic couplings, e.g. for protection when one engine is started by another after failure during flight. Each valve 25, 26 comprises a spring-loaded hollow control slide valve (33), Fig. 2 (not shown), loaded by the pump output at one end against the spring force, and having a throttling bore (38) at that end to connect the pump output via the valve and control parts (41) to the couplings or exhaust. A rotary valve (47), Fig. 3, (not shown), may control the throttling orifice (38) to compensate automatically for viscosity variations with temperature.
Patent GB-215638-A (GB)
Title: Improvements in and relating to shaft packings for elastic fluid turbines and the like
IPC: F16J15/54
Filed: 1923-08-10
Abstract: 215,638. British Thomson-Houston Co., Ltd., (General Electric Co.). Aug. 10, 1923. Cooling bearings.-The packing box 16 of a turbine or other shaft is connected in a yielding manner to the turbine casing 6 and is rigidly secured to the shaft bearing 11 or other stationary part. The box 16 is secured at the outer end to a ring 25 carried by the bearing 11 and cap 12 and at the inner end is secured to a corrugated sleeve 34, attached to the turbine casing. A ring 31 secured to the ring 25 is formed with grooves, in one of which works an impeller 33 on the shaft. The impeller draws in air through the spaces between washers 27 and discharges the air, together with leakage fluid, into a passage 39 in the bearing discharging through a pipe 41. The circulation of air serves to cool the bearing.
Patent GB-632871-A (GB)
Title: Variable speed drive
IPC: F16H9/16
Filed: 1947-07-29
Abstract: 632,871. Variable-speed gearing. SCHWEICKART, W. M. July 29,1947, No. 20432. Convention date, Aug. 20, 1946. [A Specification was laid open to inspection under Sect. 91 of the Acts, July 29, 1947]. [Class 80 (ii)] An epicyclic expanding pulley gearing has a pair of planetary pulleys rotatably mounted on a rotary support, serving as the driving member and connected by a pair of belts to a fixed pulley and a driven pulley respectively. A driving shaft 31 has rigidly fixed thereto by a collet 30 a quill 27 carried in two bushes 28, 29 in a hollow shaft 7, to which is rigidly fixed a flange 12 co-operating through pins 16 with a second flange 11 slidably mounted on the shaft 7. Rotatably mounted on the shaft 7 are a flange 3, relatively slidable on the bars of flange 4, and a hub 1 which supports the mechanism. A flange 18 secured to the shaft 7 is in camming connection with the driven pulley 13, through balls 21 in the pockets 22 which have inclined sides, such that an increase in torque results in the flange 12 being moved nearer the flange 11 to increase the effective diameter of the pulley 11, 12. The pulleys 3, 4 and 11, 12 are connected by belts 49, 50 with a pair of pulleys 42, 43 and 44, 45 having their alternate flanges 42, 45 and 43, 44 connected for relative axial movement by sleeves 47 and bolts 48 respectively, such that an increase in diameter of pulley 11, 12 tightens the belt 50 to produce a corresponding decrease in diameter of the pulley 44, 45, an increase in diameter of pulley 42, 43 and, through the belt 49, a decrease in diameter of the pulley 3, 4. The double pulley 42, 43, 44, 45, is carried on a spindle 36 mounted on an adjusting crank 40 on the plates 33, 37 which are.arranged for rotation with the shaft 27. A weight 68 is similarly mounted on crank 70 for balancing purposes. Manual adjustment of the gear ratio may be made by rotating a worm 52 meshing with a worm wheel 53 connected through the helix 54 with the boss of the flange 4. In a modification, the rotary support plates for the double pulley are connected to the driven pulley the input shaft being in similar camming connection with the pulley 11, 12, manual adjustment of which is by co-axial handwheel.
Patent GB-1488598-A (GB)
Title: Device for directing radiant energy
IPC: F24S23/70
Filed: 1975-05-15
Abstract: 1488598 Solar heat collectors; reflector heaters UNITED STATES ENERGY RESEARCH & DEVELOPMENT ADMINISTRATION 15 May 1975 [26 July 1974] 20481/75 Headings F4U and F4W [Also in Division H1] A radiation directing device comprises an energy transducer 65, e.g. a tube containing heat transfer fluid, a heat pipe, a photovoltaic cell or a radiator, and a reflector 68, 69. Each side of the reflector is formed of two portions 74, 71, the first portion 74 being shaped as the involute of the adjacent side of the transducer and the second portion 71 being shaped so that radiation received at an angle of less than #  max  to the central axis 67 will be reflected to the transducer, the outer end of the side being parallel to axis 67. The reflector may have one or two side walls, the two side walls being of equal or differing lengths. The transducer may be of circular cross-section or may be a flat sheet, Figs. 4, 6 (not shown). A mirror may be provided to extend upwardly along the central axis 67 from the top of the transducer to a point level with or higher than the higher side of the reflector.
Patent GB-873234-A (GB)
Title: Improvements in components for clock, watch and like mechanisms and their manufacture
IPC: G04B31/08
Filed: 1958-06-26
Abstract: Components for clock, watch or like mechanisms having surfaces subjected during use to frictional wear, are coated, at least on such surfaces, with a firmly adherent film, of a thickness not greater than one micron, a non-sticky lubricating substance comprising a mixture of a synthetic resin or plastic and one or more salts of stearic acid.  A dry lubricant such as graphite or molybdenum disulphide and an adhesion improver such as methyl cellulose may also be included.  Suitable synthetic resin materials are those listed in specification 864,531.  In an example, cleaned mainsprings are immersed from 10 seconds to 30 minutes in an aqueous suspension exposed to ultrasonic vibration and containing polytetrafluoroethylene and zinc stearate, with or without molybdenum sulphide; they are then removed and dried. Organic liquids may also be used as the suspending media.  The coatings may be sintered by heating under pressure.
Patent GB-875558-A (GB)
Title: Process for the production of eupolyoxymethylenes
IPC: C08G2/00
Filed: 1960-06-10
Abstract: Polyoxymethylenes are produced by polymerizing formaldehyde or its low-molecular weight polymers in the presence of at least one free halogen as catalyst.  A neutral organic diluent may be present.  The free halogen may be used in quantities of from 0,01%-1%, the polymerization carried out at 50 DEG -150 DEG C. and other formaldehyde polymerization catalysts may also be present. Trioxane is the specified low molecular weight polymer of formaldehyde. Specification 744,336 is referred to.
Patent GB-935777-A (GB)
Title: Telegraph system with protection against errors and correction of same
Inventor: DALEN CHRISTIAAN JOHANNES VAN
IPC: H04L1/18
Filed: 1961-06-07
Abstract: 935,777. Error-correcting telegraph systems. DE STAAT DER NEDERLANDEN TEN DEZE VORTEGENWOORDIGD DOOR DE DIRECTEUR-GENERAAL DER POSTERIJEN TELEGRAFIE EN TELEFONIE. June 7, 1961 [June 9, 1960], No. 20533/61. Drawings to Specification. Class 40 (3). The invention provides a modification of the system described in Specification 882,207 which comprises means for correcting by repetition signals received mutilated. Signals are transmitted alternately over two channels. In the present invention, reception at a first station of a faulty signal transmitted from a second station on a first channel causes the next signal in the sequence, which would normally be transmitted from the first station over the second channel, to be stored and a repetition requesting signal to be transmitted back to the second station over that second channel. Reception of the repetition signal at the second station causes the signal which would normally be transmitted to the first station over the second channel to be stored and the faultily received signal to be transmitted again on the first channel. The stored signals are transmitted over their respective channels immediately after the transmission of the repetition and repeated signals. The receiver, which is similar to that described in the above-mentioned Specification, sorts the signals in to their correct order for printing. Full description of the signal-handling arrangements at the two stations is given. Should a number of errors occur consecutively and the storage capacity be reached, means are provided for preventing the supply of further signals to the transmitter.
Patent GB-773446-A (GB)
Title: Improvements in or relating to electrically heated water closet seats
IPC: A47K13/30
Filed: 1955-07-15
Abstract: 773,446. Time switches. MANCIN, G. P. July 15, 1955 [April 23, 1955], No. 20551/55. Class 38(5) [Also in Group XI] In a device for closing the circuit to a heater 2 for a predetermined time a mercury switch 17 is retained in a horizontal position by a pivoted lever 21 having a portion 23 engageable by a member 51 projecting radially from a collar 50 adjustably secured at one end of a shaft. 48. A gear 44 is secured to one half 43 of a dog clutch, and is rotatable on the shaft, the other half 42 of the clutch being longitudinally slidable but non-rotatable on the shaft and provided with a collar portion 41 having an annular groove 40 engaged by pins 39 of a lever 32 pivoted at its upper end 31. The other end of the lever is urged by tension spring 33 such that the dog faces of the clutch are normally disengaged, engagement being caused only when an electromagnet 28 is energized. Towards the other end of the shaft 48 is secured a collar 62 having a radial member 63, the latter 'being engageable by a rod 64 provided on a gear 55 rotatable on the shaft 48 by means of a knob 60 and chain drive 56; the shaft 48 also carries a pointer 66 and a spiral spring 52. In operation current passes via contacts 14, 15 and mercury switch 17 to the electromagnet 28 and motor 27, the clutch thus being engaged, the gear 44 rotated, and the circuit through the resistance 2 completed through contacts 35, 36. The gear 44 and the shaft 48 are rotated until the mercury switch 17 tilts on being released by the lever 21 when the latter is struck by the radial member 51, current supply to the electromagnet 28 and the motor 27 thus being broken. The lever 32 now returns to its original position, contacts 35, 36 are disconnected to de-energize the resistance 2, the clutch is disengaged, and the shaft is returned by the spring 52 to its original position as determined by the setting of the gear 55 by means of the knob 60; the duration of the heating of resistance 2 may thus be varied by such setting and is indicated by the pointer 66.
Patent GB-597139-A (GB)
Title: Improvements in or relating to glass to metal seals
IPC: H01J9/32
Filed: 1945-08-10
Abstract: 597,139. Metal-to-glass seals. M-O VALVE CO., Ltd., and SOWTER, A. B. Aug. 10, 1945, No. 20627. Drawings to Specification. [Class 36] The invention consists in the use of the method and apparatus described in Specification 597,138, in connection with electric lamps and the like, in the manufacture of thermionic valves.
Patent GB-516895-A (GB)
Title: Improvements in and relating to the manufacture of bomb noses and similar parts of ammunition projectiles
IPC: F42B30/08
Filed: 1938-07-12
Abstract: 516,895. Making bombs, projectiles &c. BROWN, D. July 12, 1938, Nos. 20679 and 32021. [Classes 83 (ii) and 83 (iv)] Pipe end closing; forging-dies.-Bombs, projectiles and the like are formed from tubular blanks by reducing the ends in dies under axial pressure whilst heated. The blanks may be made by bending up and welding a strip. The first die b is of hemispherical form and has a pin c to determine the size of opening required. After the end has been reheated. it is finished in a die d, Fig. 4. Irregularities may be removed by pressing between coacting dies f, g, Fig. 6. The other end is finished in similar but rather deeper dies.