baber/WOPTO huggingface dataset:
Patent GB-281373-A (GB)
Title: Machine for pruning tea plants
IPC: A01D46/04
Filed: 1926-08-30
Abstract: 281,373. Charmers, T. A. Aug. 30, 1926. Tea, gathering; harvesting-machines. - Forpruning tea plants a band saw 21 actuated by an electric motor is arranged to travel round pulleys 13, 18, mounted in a frame 3 carried adjustably at the front of a travelling carriage 1 mounted upon endless tracks 22 and propelled by an internal-combustion engine 23. The saw operates at a height of not less than one foot above the ground. The frame 3 is adjusted vertically by screwed shafts 6 adapted to be rotated by a hand-wheel 10. The distance between the side members of the carriage is such that two or more rows of plants are bridged. The carriage may be operated by a cable or other power system.
Patent GB-246789-A (GB)
Title: Improvements in or relating to washhand basins
IPC: E03C1/23
Filed: 1925-08-26
Abstract: 246,789. Linke-Hofmann Lauchhamimer Akt.-Ges. Jan. 27, 1925, [Convention date]. Lavatory basins; waste fittings. - The tubular support g is oblique-ended and rests on a cam surface f formed on a casting b in the discharge pipe a which also carries a conical waste valve c. The basin is emptied by rotating or lifting bodily. A known arrangement is referred to in which pins on the tubular support move in inclined slots in the discharge pipe.
Patent GB-668146-A (GB)
Title: Improvements in and relating to oscillator synchronizing systems
IPC: H04N5/12
Filed: 1950-08-30
Abstract: 668,146. Television. BRITISH THOMSONHOUSTON CO., Ltd. Aug. 30, 1950 [Sept. 16, 1949], No. 21456/50. Class 40 (iii). [Also in Group XXXV] An oscillation generator, for example a television scanning generator, is synchronized by combining its output with reference pulses to derive a wave whose energy content depends on their relative phases and by using the derived wave to.energize the cathode of a control valve 50 associated with the generator that its cathode emission varies the frequency in a corrective sense. As shown, the saw-tooth wave generated across condenser 36 is applied through an amplifier 10 to the horizontal scanning-coils 11 of a television receiver tube 6. The condenser 36 is charged from a source 23 through a resistor 37 and is discharged through the triode valve 26 connected in known manner as a blocking oscillator, the frequency of which is dependent on the time of discharge of grid condensers 28<SP>1</SP> and 30. A resistor 31 forming part of the discharge path is shunted by a diode valve 20 whose cathode heating-current is supplied through a condenser 18 with the A.C. component of the voltage across a resistor 17. This resistor is in the cathode lead of a valve 15 which receives on its grid the synchronizing pulses from the pulse separator 8 and also the saw-tooth voltages from the condenser 36. The cathode current is therefore dependent on the phase relation between these two inputs and any deviation in this phase relation results in a variation in the resistance of the diode 20 and in the time constant of the grid circuit of the blocking oscillator 26. Bias for the valve 15 is derived from that of the valve 26 by the voltage divider 21, 24. In a modified circuit, Fig. 2 (not shown), a diode valve is connected in series with the resistor 31 with its anode connected to that resistor and its cathode connected to the junction of condenser 30 and the anode of diode 20.
Patent GB-267006-A (GB)
Title: Improvements in and relating to knives
IPC: B26B9/02
Filed: 1926-09-01
Abstract: 267,006. Davis, R. M. Sept. 1, 1926. Table and like knives.-A continuous laterally corrugated cutting edge 3 is formed by furrows 2 in the opposite faces of the blade, the furrows on one side being staggered with respect to those on the other side. The furrows do not penetrate far enough to emerge, near the edge, at the opposite face, so that the formation of saw-teeth is avoided. The furrows may be of V, semicircular, or other cross-section, and may be perpendicular to the knife-edge as shown or inclined thereto.
Patent GB-1465037-A (GB)
Title: Gear pump or motor
IPC: F04C15/00
Filed: 1975-05-20
Abstract: 1465037 Externally meshing gear machines ROBERT BOSCH GmbH 20 May 1975 [11 Sept 1974] 21664/75 Heading F1F In an externally meshing gear machine, a sealing member 24, 25 surrounds the non-meshing periphery of each gear and a pressure field which, in operation, communicates with the high-pressure bore 22 of the machine to urge the member against the teeth of the associated gear, is defined by a substantially U-shaped seal 30, 30' which is located on the outer surface of the respective sealing member 24 or 25. Each seal 30, 30' is located in two edge grooves connected by a transverse groove 28 Fig. 5, and defines a space which opens into the bore 22 and also communicates therewith by a bore 40 through the respective sealing member 24 or 25. Each member 24, 25 has three pressure relief grooves running along its inner surface which extend from the low-pressure 23 to terminate adjacent the transverse groove 28. The sealing members may be made from brass or tetrafluorethylene and the seals 30, 30'of a rubberelastic material. The sealing members 24, 25 may have the same axial dimension as its respective gear or greater, in which case, it extends into an arcuate recess in a bearing member on each side of the gear.
Patent GB-217386-A (GB)
Abstract: 217,386. Bakkekilde, R. S. April 28, 1923. Closed solid-fuel stoves.-Comprises a construction of stove of the type in which a fuel feed shaft n is arranged above the furnace e, the sides of the shaft being connected to the front and back walls of the stove and being open to allow the combustion products to pass to the flue. The stove comprises a bottom plate c with an opening for a grate b and on which are disposed plates h, i forming walls of the furnace and also of the side and back flues d, g. The gases pass through openings between the depending side walls of the shaft n and the walls h, down the side flues d, and thence to the back flue g. Apertures t on one or both sides of the feed shaft supply air to promote ignition of the gases and prevent explosions. The stove is selfcontained and is mounted on rollers u. The feed shaft n, the front parts of the side walls h, and the back-wall i may be replaced by a correspondingly - formed boiler. Specification 192,538 is referred to.
Patent GB-261856-A (GB)
Title: Improvements in scissors, and like tools comprising two leg members pivotally connected
IPC: B26B13/28
Filed: 1925-08-31
Abstract: 261,856. Holmes, V. W. Aug. 31, 1925. Disc and like plate hinges; joint pins. - For scissors and like tools and surgical appliances of the kind in which two leg members B, C are pivotally connected together, the pivot pin A is hollow and slit at one end and with a chamfer on its inner face to engage with a chamfer on the face of its leg member, as shown. The pivot pin may be rigidly connected to one limb, it may be housed in a bush or liner secured to the limb or limbs, and the strength of the pivot and its resistance to the separation of the limbs by force may be increased by the insertion of a plug into the pivot. When a loose pin is employed it may be a force fit in the socket member.
Patent GB-737958-A (GB)
Title: Improvements in and relating to a method of and an apparatus for manufacturing impermeable tubes of asbestos-cement material
IPC: B28B21/48
Filed: 1953-08-06
Abstract: 737,958. Asbestos-cement tubes. ETERNIT SOC. PER AZIONI, [formerly SOC. PER AZIONI ETERNIT PIETRA ARTIFICIALE]. Aug. 6, 1953 [Sept. 26, 1952], No. 21767/53. Class 99 (2). In a method of making a tube of asbestoscement for subsequent processing into flat or corrugated sheets and by means of a paper-type revolving machine, during the winding of a layer 4 of asbestos-cement in a plastic state on to a mandrel 1 of the machine and for at least one revolution of the mandrel, a material made of or comprising a convenient percentage of liquid or pulverized impermeabilizing material is sprinkled on to the layer 4 so as to form within the wall of the tube a layer of at least one full turn of the material. The impermeabilizing material may comprise a solution of asphalt, a resin or a material having a casein basis, and be mixed with a slurry of cement and fibres or powdered cement and fibres. The tubes may comprise several layers of asbestos-cement and intermediate layers of impermeabilizing material. As shown, a hopper 8, a mixing element 9 and a distributer 10 are disposed parallel to the axis and at the side of the mandrel 1, the impermeabilizing material being deposited on to a layer of plastic asbestos-cement on a felt band 6 and passing beneath the distributer 10; alternatively, the hopper is arranged above the mandrel.
Patent GB-217767-A (GB)
Abstract: 217,767. Barstow, G. B. June 19, 1923. Cramps. - A floor cramp comprises a flat plate or open frame of triangular shape having two or three legs, one disposed at each corner of the triangle for gripping the beam 5 and a wedge 7 which is driven in between the frame and the floor boards 6. The frame 1 is provided with an overhanging ledge 2 under which the wedge 7 passes. On driving in the wedge, the frame is given a twisting movement so that the legs 3 grip tne beam so as to hold the frame against backward movement. The legs may be provided' with teeth 4 and be spaced at different distances, to suit different widths of the beam by making the sides of the frame of different lengths.
Patent GB-206901-A (GB)
Title: An improved shive drawer or bung extractor
Filed: 1922-08-10
Abstract: 206,901. Stubbs, P. L. Aug. 10, 1922. Prizing - tools. - In bung-extractors of the kind comprising a lever a provided with a socket j to recurve an extractor pin h having a barbed, chised-edged end k and with a fulcrum foot o near to the socket, the pin h is provided with a screw-thread m adapted to cause the pin to turn when it is driven into the bung. A short lever f is also provided which engages at one end under the head i of the pin and is adapted to be struck on the other end g to extract the bung, the lever a being also utilized if necessary. The fulcrum foot o consists of bracket's d which are fixed to the lever a and support the pivot e of the lever g.
Patent GB-532337-A (GB)
Title: Improvements in or relating to thermionic valve circuits
IPC: H03G3/06
Filed: 1939-07-27
Abstract: 532,337. Valve generating circuits. SIEMENS BROS. & CO., Ltd., and CHITTENDEN, P. A. July 27, 1939, No. 21851. [Class 40 (v)] In supplying alternating currents to a load circuit, e.g. for voice frequency signalling in a telephone system, by means of an output valve excited to generate the required output frequency, and provided with an output transformer tuned to the required output frequency, the exciting means is arranged to inject into the control grid of the output valve an oscillatory voltage of sufficient amplitude to cause overloading of the output valve over the whole or major portion of the working range, the overloading decreasing with increasing load current in such a manner that the output voltage is substantially unaffected by changes of load current within an extensive range of values. The valve used is preferably a pentode and overloading occurs as a result of the characteristics of this type of valve. A further pentode valve may be used to generate the oscillatory signal or the oscillator may be disposed in the same bulb as the electrodes of the output valve. The oscillator comprises a pentode valve VA and associated transformer TRA having three windings I, II, III. The winding II is connected through a grid condenser QE and leak YC to the grid of the valve while the anode, fed with voltage through a resistance YA, is back coupled through a condenser QB to the winding I, condensers QC being provided for fine adjustment of the generated frequency. The driving voltage thus obtained is injected through condenser QF and leak YD into the grid of the pentode VB in the output circuit of which a transformer TRB is connected, the secondary winding II being tapped so that the transformer may be tuned to the required output frequency.
Patent GB-443341-A (GB)
Title: Improvements in or relating to automatic electric arc welding systems
IPC: B23K9/073
Filed: 1935-08-01
Abstract: 443,341. Automatic control of arcs. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Aug. 1, 1935, No. 21864. Convention date, Nov. 12, 1934. [Class 38 (iv)] In an arc welding equipment supplied from an A.C. supply, the electrode adjustment is effected by a D.C. motor supplied through a rectifier and controlled in dependence on the voltage across the arc by means of an electromagnetic relay. Closure of the press button switch 8 completes by means of a switch 6 the circuit from the A.C. supply 1 to the welding electrodes 2, 3. The motor 20 which is connected between the electrodes through a rectifier 10 and contacts 23, 24 of a switch 14 starts and feeds the electrode 2 forward to strike the arc. Due to the arc current the switch 16 operates and energizes the solenoid 22 causing the switch 14 to operate, connecting the motor to the A.C. supply in a reversed direction so that the motor operates to retract the electrode. When the arc voltage becomes sufficient, a switch 17 operates, deenergizing the switch 14, so that the motor is again connected across the arc and the rate of feed of the electrode 2 is determined by the arc voltage. The switch 17 also short-circuits resistances 21 and 12 in the armature and field circuits of the motor.
Patent GB-1419073-A (GB)
Title: Nuclear reactor fuel element subassemblies
IPC: G21C3/326
Filed: 1972-05-17
Abstract: 1419073 Fuel elements UNITED KING- DOM ATOMIC ENERGY AUTHORITY 5 April 1973 [17 May 1972] 21979/75 Divided out of 1419072 Heading G6C A fuel assembly comprises a bundle of sheathed fuel elements 2 enclosed by a peripheral wrapper 3 and spaced apart by helically wound fins 4 of uniform radial height, the fins being arranged to make contact with the sheaths of adjacent elements to provide lateral supports and the fins of the outer elements being arranged to space the wrapper from the bundle and to provide lateral supports. A wire filler 7 extends along each outer coolant flow passageway bounded by a pair of outer fuel elements 2 and the wrapper 3, the filler 7 being of wave form and attached to the inner surface of the wrapper 3 to make support contacts with the fuel elements 2 in a series of horizontal planes, in each plane the filler 7 contacting a fuel element sheath, the helical fin 4 of the adjoining fuel element, and the wrapper 3. The wrapper 3, the helical fins 4 and the fuel element sheath are formed from stainless steel.
Patent GB-1419734-A (GB)
Title: Fungicidal and microbicidal agents
IPC: C07D249/08
Filed: 1974-05-17
Abstract: 1419734 Pesticidal application of Imidazole derivatives BAYER AG 17 May 1974 [18 May 1973] 22019/74 Heading A5E [Also in Division C2]  A fungicidal or microbicidal composition contains as active ingredient an imidazole derivative of the general formula  in which R<SP>1</SP> is an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, aryl or aralkyl radical, R<SP>2</SP> is hydrogen or an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, aryl or aralkyl radical, R<SP>3</SP> is an optionally substituted alkyl, alkenyl, alkynyl, cycloalkyl, cycloalkenyl, aryl. or aralkyl radical, X is oxygen or sulphur, and Y is a keto group or a functional derivative of a keto group, e.g. the hydrated form -C(OH) 2 - or a ketal group; or a salt of said imidazole derivative. In examples selected compounds are tested for pieventitive and curative effect on application to seed, soil, plants and wood pulp.
Patent GB-646716-A (GB)
Title: Improvements in tubular electric discharge lamps
IPC: H01J5/62
Filed: 1948-01-14
Abstract: 646,716. Lamp-caps. SYLVANIA ELECTRIC PRODUCTS, Inc. Jan. 14, 1948, No. 22086/47. Convention date, Aug. 21, 1945. [Class 38 (i)] A tubular discharge lamp has the translucent end of its envelope through which the lead-in wires project surrounded by a translucent base from which the contact pins project, preferably the parts of the lead-in wires outside the envelope being covered with light-reflecting material. The cap of a lamp 1 having opposed translucent ends 4 comprises a translucent plastic body 2 recessed at 8 for the ends 4 and provided with lead-in wires 10 covered with light-reflecting material. The interior 9 of the cap is etched to diffuse the light; alternatively (Fig. 3, not shown), the interior is ribbed or grooved. A projection 15 on one end 4 permits the envelope to move about the axis of the cap which is provided with shoulders to limit the rotation.
Patent GB-479856-A (GB)
Title: Improvements in or relating to sole shaping machines
IPC: A43D35/00
Filed: 1936-08-12
Abstract: 479,856. Boot making machines. BRITISH UNITED SHOE MACHINERY CO., Ltd. Aug. 12, 1936, No. 22159. Convention date, Aug. 12, 1935. [Class 17 (i)] Sole blanks. machines for.-A machine for shaping the shank portionsof soles for highheeled shoes has two rolls forming a rotary shank-moulding couple for gripping and feeding a sole through the rolls of the couple and complementally shaped for forming an arched shank on the sole terminating at its forward end in a Y " break " at the rear at the forepart. Heel and toe gauges position the sole, and the latter is advanced towards the rotating moulding couple to ensure the shaping of the shank at the portion predetermined. A lower male mould 50 is carried on a shaft 28 in fixed bearings, while an upper female mould is carried on a shaft 18, the shafts being driven in opposite directions by a one-revolution clutch, and the upper mould being urged downwardly by springs 22 of some 75 1b. strength. Flats 52, 54 on the rolls, opposite at starting position, provide a gap for the entrance of the heel end of the sole, the lower flat carrying heel-end positioning means comprising a pair of pivoted arms 55 geared together and urged towards each other by a spring. Toe-end gauges 56 are adjustable transversely through a block 59, the gauges each having a rack gearing with a common pinion provided with a lock nut, so that the gauges are adjustable in unison towards or from the central line of the table 15. The block 59 carries a pointer 60 co-operating with a size scale 68, and is slidable along a slot 61. The block is connected by a link 78 with a lever 76 connected by an adjustable link 74 with the strap of an eccentric on the shaft 28. In operation, the gauges 56 having been adjusted for length and swing of last, a pair of soles are positioned between the gauges. The treadle of the onerevolution clutch is tripped, and before the centring rolls 57 leave the sole it is gripped between portions 80 of the rolls. While the rolls rotate to mould the shank portion, the alignment of the sole is maintained by the toe end gauges moving towards the rolls. The sole is carried through the rolls, which stop on reaching starting position.
Patent GB-1287356-A (GB)
Title: Improvements in or relating to booms for cranes
IPC: B66C23/70
Filed: 1970-05-07
Abstract: 1287356 Structural elements AMERICAN HOIST & DERRICK Co 7 May 1970 [13 June 1969] 22187/70 Heading E1K [Also in Division B8] A telescopic boom for a crane comprises elongated linear angle members 57 forming the corners of section 42 and connected by plates 58, 59, 61, 62 welded at 66 into recesses in the members 57. Boom sections 43, 44, 45 are similarly constructed. Lower wear plates 68, 69, 71 and upper wear plates 77, 78, 79 are interposed between adjacent boom sections. As shown in Fig. 7 wear plate 68, for example, has a flat sliding top face 74 and a longitudinally convex bottom surface 76 to provide limited rocking action to equalize bearing pressure.
Patent GB-840858-A (GB)
Title: Improvements in or relating to methods of heat-treatment of a body consisting of semi-conducting material
IPC: C22F1/16
Filed: 1957-07-12
Abstract: 840,858. Heat treating semi-conducting materials. SIEMENS & HALSKE A.G. July 12, 1957 [July 13, 1956], No. 22242/57. Class 72 A method of heat treating a body of semi-conducting material comprises neutralizing the effect of gravity by means of a magnetic field interacting with an electric current flowing through the body. As shown, a wire 4 of germanium may be supported at its ends by electrodes 2, 3, within a tube 1 which is surrounded by a coil 5. The field produced by the coil acts on a current flowing the wire to prevent the latter from sagging when heated to a temperature 15‹C. below the melting point of the germanium. The wire may be rotated and a protective gas, which may contain an impurity substance, may be introduced into the tube. In a modification, Fig. 2 (not shown) the wire may be supported in a magnetic field the intensity of which increases in the direction in which gravity acts.
Patent GB-295033-A (GB)
Title: Process for the catalytic hydrogenation of aromatic bases
Filed: 1928-08-01
Abstract: 295,033. I. G. Farbenindustrie Akt.- Ges. Aug. 6, 1927, [Convention date]. Hydroaromatic bases. - The catalytic hydrogenation of aromatic bases is facilitated by the use of an oxide or hydroxide of an alkaline earth metal or an alkaline acting salt of an alkali or alkaline earth in conjunction with the catalyst. According to an example, 100 parts of ethylaniline, 1 part of nickel oxide, and 0.06 part of sodium carbonate are maintained at 250‹ C. under pressure of 100 atmospheres; 85 per cent of hexahydroethylaniline is produced in half an hour. Another example relates to the hydrogenation of orthotoluidine by means of a cobalt oxide catalyst with an addition of calcium oxide.
Patent GB-1486756-A (GB)
Title: Method and apparatus for hot end treatment of glass containers
IPC: C03C17/00
Filed: 1976-05-28
Abstract: 1486756 Hot end treatment REDFEARN NATIONAL GLASS Ltd 28 May 1976 22342/76 Heading C1M In a method of hot-end treating glass containers (e.g. with a treating agent which is a tin or titanium compound), the finish 16 of each container (i.e. the top part of the container neck on which the closure fits) is enveloped in burning gas to shield it from the treating agent. The containers may be conveyed through a treatment housing in which is disposed a shield 13 (an inverted channel), the finishes 16 projecting upwards between side walls 14, 15 of the channel, combustion gas being supplied to burners 17 to provide the burning gas enveloping the finishes as the containers are conveyed through the housing.
Patent GB-1220120-A (GB)
Title: Random impulse generator and applications thereof
IPC: B65H54/38
Filed: 1968-05-10
Abstract: 1,220,120. Traversing yarns onto packages. HEPATEX A.G. 10 May, 1968 [11 May, 1967], No. 22361/68. Heading D1J. [Also in Division H1] A device 28, Fig. 2, for generating random electrical impulses in the drive of a thread winder comprises a pendulum (8) Fig. 1 (not shown, see Division H1) that is caused to swing in a random manner as by a rotating impact lever (11) coupled to the drive shaft 23. When the pendulum moves into predetermined positions it closes an electrical circuit to produce said random impulses. These impulses may control a clutch drive 27 in the traversing mechanism 25, 26 of the thread winder, or they may act on a portion of the drive, located within the drive 20, which is connected to a continuously traversing shaft. The device serves to avoid ribbon winding.
Patent GB-286163-A (GB)
Title: Improvements in or relating to rolling mills
IPC: B21B35/14
Filed: 1927-08-26
Abstract: 286,163. Stewart & Co., Ltd., D., and Holmes, T. E. Aug. 26, 1927. Shaft couplings.-A friction coupling 9 with interengaging friction members 13 adjustable by screws 11 is combined with the universal joint at one end of a wobbler shaft in a rolling mill. Specification 118,496 is referred to.