baber/WOPTO huggingface dataset:
Patent GB-457924-A (GB)
Title: Improvements in screening or sifting apparatus
IPC: B07B1/34
Filed: 1935-03-09
Abstract: 457,924. Sifting-apparatus. ARNOLD, C., 11, Southampton Buildings, Chancery Lane, London.-(Tyier Co., W. S. ; 3615, Superior Avenue, Cleveland, Ohio, U.S.A.) March 9, 1935, No. 7370. [Class 117] In sifting-apparatus, a fine screen is supported by spacers secured to a coarser screen and the screens are vibrated in unison by means directly engaging them both. In the form shown, the vibrating arm 8 is connected to steel strips 9, 11, 13 secured to the two screens 1, 6 with resilient material disposed between the strips. The screen 1 rests on strips of asbestos or fibre 7 interlaced with the coarser screen 6. In a modification, the spacers may be in the form of strips secured to the screen 6 by studs or by buttons 17, Fig. 6, and may extend transversely of the screen or transversely and axially. In a further modification, rubber cords are interlaced with the lower screen to serve as separators.
Patent GB-800499-A (GB)
Title: Improvements in or relating to gettering arrangements
IPC: H01J7/18
Filed: 1957-03-06
Abstract: 800,499. Discharge tubes. TELEFUNKEN G. m. b. H. March 6, 1957 [April 9, 1956], No. 7413/57. Class 39(1). A getter 5 in series with a condenser 13 are together mounted in parallel across the cathode heater 8, the getter being fired by passing a high-frequency current. If the getter heater is of lower inductance than the cathode heater, most of the current will pass through the former. The getter heater and condenser may be so designed as to form a series-resonant circuit for the particular h-f frequency used. In a practical embodiment, Fig. 1 (not shown) the cathode heater leads are coaxial tubes, with the getter mounted between them. The condenser is formed by a metal sheet cemented to the inside of the outer coaxial tube, the cement acting as the dielectric.
Patent GB-124937-A (GB)
Title: An Improved Dibber for use in Planting Potatoes, Bulbs and the like.
Inventor: GIBBS WILLIAM CHARLES
IPC: A01C5/02
Filed: 1918-05-03
Abstract: 124,937. Gibbs, W. C. May 3, 1918. Planting-tools.-A tool for making holes for planting potatoes &c. consists of a short tapered steel tube sharpened at its lower edge A and provided with an inturned lip B for undercutting the soil slightly when the tool is rotated. It is made from a flat blank and is provided with a long handle C and with a foot-bar D.
Patent GB-734834-A (GB)
Title: Improvements in floor cleaning machines
Inventor: COWLARD STEPHEN RICHARD RALPH
IPC: A47L11/16
Filed: 1951-03-30
Abstract: 734,834. Floor cleaning machines; rotary brushes. COWLARD, Ltd., S. R. June 30, 1952 [March 30, 1951], No. 7474/51. Classes 19 and 138 (1). In a floor cleaning machine of the kind comprising a chassis mounted on wheels and/or castors and provided with a power-driven member for driving one or more brushes which rotate in a horizontal plane, each wheel and/or castor is mounted on the chassis for independent and continuously-variable adjustment so that the height of the chassis from the ground and thus the pressure on the brushes can be varied. On the chassis 10, Figs. 1, 3, which includes a top plate 11 with a peripheral flange 12, is mounted a U-shaped handle 34, 35, an electric motor 26 and a detachable cleansing liquid tank 37 having an outlet tap or taps 38. The chassis is supported on one or two front castor wheels 14 and two rear wheels 13, and wheel 14 or 13, Figs. 4, 5, being mounted on the end of stem 17 which screws into the plate 11 by means of a handle 19 and is lockable in adjusted position by a nut 20. The fork 16, Fig. 5, for the wheel 13 is secured to its associated stem 17 whereas the fork 21, Fig. 4, of the wheel 14 can rotate relatively to its stem. A pinion 28, Fig. 3, on the motor shaft 27 meshes with a gear-wheel 29 engaging another gear-wheel 29, each gear-wheel having secured thereto a disc 30 provided with keyhole slots 31 to detachably receive headed studs 32 mounted on the back of a star-shaped brush 15. Spaces 33 along each limb of the star are free from bristles to prevent them packing together. The brushes 15, Fig. 3, rotate in opposite directions and their paths of rotation overlap. Steel brushes may be used for very dirty floors. Instead of the taps 38 a pair of discharge pipes controlled by a needle valve operable from the handle 34, 35 may be used. Four brushes may be provided and the chassis may carry an additional tank for receiving dirty water collected by means of a nozzle mounted at the rear of the chassis, suction then being caused by an impeller motor. Switches for the motor 26 and impeller motor, if provided, may be mounted on the handle. According to the Provisional Specification the needle valve may be spring- loaded to a closed position and connected by a cable to the handle control. Also the suction nozzle may be a " fish-tail," spring-loaded into contact with the floor and raised or lowered by a cable controlled from the handle. Furthermore, the dirty liquid tank is provided with baffle means.
Patent GB-1599582-A (GB)
Title: Forming and maintaining a lining on a gun barrel
IPC: F41A21/02
Filed: 1978-02-24
Abstract: In the case of a weapon with a barrel, the firing performance is improved by the powder propulsion charge, which produces the thermal and mechanical stress, having additives added to it of such a type and quantity that a cohesive, wear-resistant, high melting point coating is formed which has poor thermal conductivity and whose coating thickness is determined by a balance state between the formation of new deposit and erosion as a result of the thermal and/or mechanical stress.
Patent GB-136059-A (GB)
Title: Improvements in or relating to Radio Telegraphic Transmission Systems.
Inventor: MELLERSH-JACKSON WILLIAM JOHN
IPC: H04L27/04
Filed: 1919-03-25
Abstract: 136,059. Jackson, W. J. Mellersh-, (Taylor, A.). March 25, 1919. Wireless signalling.-In a system of wireless signalling, the emission of radiation from the aerial is controlled by means of an auxiliary circuit, the hysteresis losses in which can be varied so that the oscillations either take place in the aerial circuit or in the auxiliary circuit, but not in both. The oscillations are preferably continuous, and in the system shown in the Figure, are derived from an arc 2 in a hydrogen atmosphere, direct current being supplied from a generator 3. The auxiliary circuit comprises the condenser 12, inductance 9, and an energy-consuming element consisting of a winding 15 on a core 14 of laminated iron which will provide for a. large hysteresis loss when unsaturated. The iron is however saturated when the key 18 is on its back stop, as current then passes from the battery 17 through the winding 16. In this case, the oscillations take place in the circuit 12, 9, 15 to the complete exclusion of the aerial circuit. Choke coils 19 are preferably used in the circuit of the battery, or other means may be employed to prevent high-frequency currents from passing into the battery. An oil bath 21 cooled by water pipes 22 dissipates the heat produced on the iron core 14.
Patent GB-801761-A (GB)
Title: Improvements in or relating to artificial limbs
IPC: A61F2/60
Filed: 1956-03-12
Abstract: 801,761. Artificial limb joints. BACH, J. March 12, 1956 [March 14, 1955; March 28, 1955], No. 7594/56. Class 81 (2). A knee or ankle joint for an artificial limb comprises a joint spindle with a resilient bearing portion at each end and mounted in a bearing socket in one part of the limb, the bearing portions being connected to a rigid portion of the other part of the limb. A knee joint comprises a spindle consisting of rubber cylinders 4, 4a which are connected by a rigid piece 5 and are vulcanized on to plates 6. The spindle is fixed by screws 7 to holders 8 attached to the lower leg section. Bushes 11 on the cylinders 4, 4a are supported in a socket 12 in the thigh section. The rubber cylinders 4, 4a are deformed when loaded so that the thigh section drops downwards and the lower portion of the thigh section bears against a cup 16 provided in the lower leg section, thus braking pivotal movement of the knee joint. The cup 16 has brake linings 18. Pivotal movement of the knee joint is limited by an arrestor device which is fixed to the lower leg section and bears against a stop (not shown) on the thigh section. An ankle joint has a deformable spindle 24 formed by rubber cylinders 29 which carry a rigid sleeve 30 and mounted in a bush 25 fixed in the lower leg section 23. The spindle 24 is rotatable in bearings provided in a support 26 fastened in the foot section 22. A cord brake (not shown) is fixed in the heel and lower leg section and passes through a buffer mounted between the foot and lower leg section. Either the bushes carried by the spindles or the sockets may be made of self-lubricating material.
Patent GB-556841-A (GB)
Title: Improvements relating to taps for use in cutting screw-threads
IPC: B24B19/02
Filed: 1942-06-04
Abstract: 556,841. Grinding taps. HERBERT, Ltd., A., and LLOYD, A. H. June 4, 1942, Nos. 7595 and 8959. [Class 60] A method of machining the screwthread of a tap in a centreless grinding machine includes the step of filling the flutes of a hardened blank with a softer alloy or mouldable material the strips of the softer material being united at one or both ends by a mass of the material and the periphery of the softer material being provided with a screw thread matching that on the blank. The blank 11, with flutes 12, is enclosed by a screwed sleeve 13 abutting against an asbestos washer 15 and the fusible &c. material poured in. After grinding, the material is removed from the flutes by heat. By selecting a machine having appropriate resilience of grinding-wheel or backing cam the grinding wheel sinks slightly into the alloy springing outwardly when it meets the harder, leading edge of the tap and thereafter returns thus providing relief. Specification 436,528 is referred to.
Patent GB-540750-A (GB)
Title: Improvements in and relating to gas firing for bakers ovens or other purposes
IPC: A21B1/28
Filed: 1940-04-27
Abstract: 540,750. Safety cut-off valves. GUNSTON, D., and BAKER PERKINS, Ltd. April 27, 1940, No. 7599. [Class 135] A safety cut-off device particularly adapted for use in connection with steam tube gas-fired bakers' ovens comprises a gas supply cut-off valve adapted to be shut when the temperature of the oven rises above a pre-determined figure and to re-open only after the control cock of every burner has been shut. In the form shown in Fig. 1 the cut-off valve member 9 is associated with a pressure-regulating valve member 10 loaded by a weight 36. Both valve members are actuated by a diaphragm 11 subject on its lower surface to the pressure in the main outlet conduit and having its upper surface subject to gas inlet pressure or atmospheric pressure under the control of an electrically actuated auxiliary valve. The auxiliary valve comprises a solenoid core 19 with a longitudinal passage 23 carrying at the two ends valve members 20, 21. When the solenoid winding 17 is energized by the closing of thermally-actuated switches in the several ovens the core is lifted so causing the valve 21 to connect the main diaphragm chamber to atmosphere by way of passages 24 and 22 and vent pipe 14 and at the same time causing the valve 20 to interrupt the connections between the diaphragm chamber and the main gas inlet by way of passages 24, 23, 25 and pipe 15. With an abnormal rise of temperature one or other of the switches are opened de-energizing the solenoid and reversing the control valve to admit gas pressure to the diaphragm chamber and so close the cut-off valve. A further reversal of the control valve will only cause the cut-off valve to re-open when the pressure in the main gas outlet has equalized with that in the main gas inlet by leakage through a bleed hole 13. In the event of failure of the electrically operated valve the diaphragm chamber may be connected to atmosphere by opening a screw-operated byepass valve 27. In a modification this valve is dispensed with and the solenoid core is arranged to fall by gravity to open the connection to atmosphere when the coil is de-energized. In this form the thermal switches are arranged in parallel and close with abnormal rise of temperature and the valve spindle is relieved of its weight load as the cut-off valve approaches its closed position.
Patent GB-1362359-A (GB)
Title: Motor with starting characteristics
IPC: H02K21/14
Filed: 1973-02-15
Abstract: 1362359 Electric motors AMF Inc 15 Feb 1973 [1 March 1972] 7614/73 Heading H2A The starting characteristics of an A.C. synchronous motor including a permanent magnet rotor 21 having a plurality of poles of alternate polarity round its circumference and a stator having two interdigitated sets 18, 19, of poles overlapping the rotor periphery, are improved by arranging that one set 18 of stator poles overlap the rotor to a smaller extent than the other set 19. Thus when the motor is de-energized, the rotor adapts a position wherein each of its poles is disposed between two adjacent stator poles. The rotor magnet may be of ceramic material or of plastics permanent magnet material, Fig. 3 (not shown). In a modification, Figs. 5, 6 (not shown), the stator poles (54, 56) are disposed within the annular coil (51) and one set of poles (54) may be stamped out of a housing part (53).
Patent GB-494883-A (GB)
Title: Improvements in and relating to load carrying apparatus for transport on the person
IPC: A45F3/08
Filed: 1938-03-12
Abstract: 494,883. Apparatus for carrying loads on the person. FINETTI, G. DE. March 12, 1938, No. 7757. Convention date, Aug. 19, 1937. [Class 141] Apparatus for carrying loads on the back and shoulders of the person comprises a metal frame consisting of two longitudinal elements the upper portions of which are bent at 21 to fit the person's shoulders, and the lower portions 25 of which are bent forwardly and outwardly, and terminate in straight portions 26, shoulder straps 34, Fig. 5, which are provided with rings 35, 36, for attachment to hooks 22, 28, on the metal frame, and with straps for engagement with rings 23 on the frame, an adjustable belt 37 which is provided with a strap 38 adapted to pass through a selected pair of rings 27 on the lower part of the frame so as to bear upon the hips, and handles 39 which are provided with rings for attachment to the hooks 22. The longitudinal frame elements are fitted with sleeve members 29 so as to be capable of being folded into smaller compass, Fig. 3, by rotating the arms 21, 25, stops 32 serving to limit the rotation of the arms, and bolts 33 serving to secure them in the extended position. The sleeve members 29 are connected together by transverse members 30, 31, which are provided with pins 43 and a slot 44 to serve for the attachment of an interchangeable load supporting frame 40, Fig. 8, provided with hooks 41 and a screw bolt 42.
Patent GB-1527844-A (GB)
Title: Disc brake
IPC: F16D55/224
Filed: 1977-02-24
Abstract: 1527844 Spot-type disc brakes BENDIX CORP 24 Feb 1977 [15 March 1976 (2)] 07854/77 Heading F2E In one embodiment for a motorcycle a torque member 58, Fig. 1, has secured to it two pins 46, 52, on which are suspended two friction elements, one being directly operated by actuating means in one limb of a slidable caliper, the other being operated by caliper reaction. The ends of each pin are accommodated in a pair of aligned bores, each such bore being in one or other limb of the caliper. Extensions of the bores provide for extra caliper movement consequent upon frictionelement wear. In Fig. 4 the torque member and caliper are integral, and bolts which secure two halves of the caliper together serve as the abovementioned friction - element - supporting pins. For the necessary sliding, sleeves 174, 176 are attached to a non-rotative portion of a motorcycle, and the torque-member-caliper slides by bores 162, 164.
Patent GB-1122165-A (GB)
Title: Wire retaining device for a multiple contact panel
IPC: H05K7/06
Filed: 1967-02-20
Abstract: 1,122,165. Wire retaining device; terminal boards; terminals. AMP Inc. 20 Feb., 1967 [3 March, 1966], No. 7948/67. Headings H2C and H2E. A wire retaining device 3 for a multiple contact panel board 1 comprises a resilient insulating column 4 having a perpendicularly projecting foot 5 with an aperture 7 receiving a terminal post 2 of the panel board, and at the other end of the column a flexible arm portion 8 has a downward projection 9. As shown in Fig. 2, the relative orientation of aperture 7 to column 4 is such that arms 8 on adjacent devices 3 bridge the interpost spacing. Wire lead 10a for interconnection of terminal posts 2 is clipped to one post by clip 12, and laid against the panel board 1 along its route, being held beneath arm portions 8, leaving free the upper, tapered end of terminal 2. The apertures 7 may be so oriented relative to respective columns 4 that arms 8 extend in a cardinal direction of the grid array (Fig. 3, not shown).
Patent GB-195620-A (GB)
Title: Improved treatment of cotton fabrics for rendering same transparent
IPC: D06M11/56
Filed: 1923-03-20
Abstract: 195,620. Textilwerk Horn Akt.-Ges. April 3, 1922, [Convention date]. Inkless printing by chemical reaction resist printing.- Pattern effects may be produced by applying resists such as rubber solution, glue, &c. before submitting cotton fabrics to the treatment described below. The fabrics are rendered trans. parent and soft by treating them with a, solution of ammonia salts in sulphuric acid, the ammonia salts obviating the stiffese produced in cotton fabrics treated with the usual sulphuric acid of 50¢‹-54‹ BÚ. Three examples are given in the Specification in which the fabric is treated with 69, 72, and 82 per cent, of sulphuric acid; 5, 10, and 12 per cent of ammonium sulphate; and 26, 18, and 6 per cent of water, respectively. In these examples, the treatment is carried out at temperatures between 10‹ and 18‹C. for a period of 5-10 seconds. The treating-solution may be made by the addition of hartshorn salt, sal ammoniac, ammonium acetate, or ammonium phosphate to sulphuric acid. Bleached mercerized fabric dried under tension may be treated with the solution and then squeezed, washed, and dried under tension. The transparent effect may be increased by subsequent mercerizing with soda lye and drying under tension. The fabric may be submitted to a further treatment with sulphuric acid, ammonium sulphate, and water to render it more transparent and softer. The Specification as open to inspection under Sect. 91 (3) (a), states also that the fabric may be repeatedly submitted to treatment to render it more transparent and softer. This subject-matter does not appear in the Specification a.s accepted.
Patent GB-150371-A (GB)
Title: Improvements in cocks for petrol, alcohol and other liquids
IPC: F16K31/50
Filed: 1919-10-06
Abstract: 150,371. Lindley, R. H. N., and Scholes, A. G. Oct. 6, 1919. Lift valves; multiple-way valves.-In a cock for petrol, alcohol, &c. of the type actuated by a screw k and a reciprocating non-return nut f on the valve member, a wall m separates the inlet and outlet passages c, d and the top of the wall is formed with two, three, or more ports n and constitutes the valve seating. The valve member is recessed to receive a cork or other disk h.
Patent GB-249320-A (GB)
Title: Improved means for securing doors and the like
IPC: E05C9/04
Filed: 1925-03-26
Abstract: 249,320. Potter, D. T. March 26, 1925. Multiple - bolt fastenings; staples. - Refrigerator and like doors are secured with pressure by a number of simultaneously operated bolts with bevelled ends taking into bevelled staples, the operating member being in the form of a plate rotated by a squared spindle and having pins engaging the bolts. A housing 2 is provided for the operating plate 4 which carries pins 7 engaging bolts 8, and the outside operating lever 13. An inside operating handle 12 is secured to the spindle 6 on a squared part 5 of which the plate 4 is mounted. The bevelled ends 8<a> of the bolts engage the bevels of the staples 11 or 11<x> to force the door firmly into its seating. To impart an initial opening movement to a frozen-up door, an arm with an inclined part 16 may be secured to each bolt 8, so that when the bolts are withdrawn, the arm 16 travelling over the bevel 17 of the staple 11<x>, forces the door out of its seating.
Patent GB-1254086-A (GB)
Title: Improvements in or relating to monolithic piezo-electric resonator or filter arrangements
IPC: H03H9/56
Filed: 1970-02-20
Abstract: 1,254,086. Piezo-electric filters. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. 20 Feb., 1970 [28 June, 1969], No. 8168/70. Heading H3U. A filter comprises a plate 1 of piezo-electric material formed with a series of resonators 5-8 by means of electrode pairs 2, 3, the end resonators 5, 8 also serving as input and output transducers. To obtain good decoupling between the transducers 5, 8 at least one of the electrodes 2, 3 of the intermediate resonators 6, 7 is directly connected to earth. As shown, however, each of the resonators 5-8 has an earthed electrode. In other embodiments described with reference to Figs. 5, 6 (not shown), there are six intermediate resonators.
Patent GB-1214433-A (GB)
Title: Apparatus for monitoring the movement of the shuttle of a weaving loom
IPC: D03D49/58
Filed: 1969-02-14
Abstract: 1,214,433. Electrical control systems. RUTI MACHINERY WORKS Ltd. Feb. 14, 1969 [Feb. 16, 1968], No. 8277/69. Heading G1N. [Also in Division H3] In the monitoring of the movement of the shuttle of a weaving loom, two signals, whose time spacing is dependant upon the speed of the shuttle, are generated during movement of the shuttle, the signals actuating a device to perform an operation the rate of which is variable, e.g. the charging of a capacitor, and the loom being stopped or an indication being provided when the shuttle speed is incorrect. Two spaced magnets on the shuttle actuate a coil 19 to produce two signals 20 whose time spacing is dependant upon the speed of the shuttle. The signals are applied to a bi-stable circuit, the first signal rendering a transistor 25 conductive and a transistor 26 non-conductive. Thus a capacitor 41 is charged via resistor 40, a fraction of the charging energy being applied to a capacitor 46. The second signal renders 25 non-conductive and 26 conductive. Thus capacitor 41 discharges. During the next cycle, the rate of charging of 41 is quicker since capacitor 46, which does not discharge, does not extract so much charging energy. This operation continues until 46 is fully charged and thus the rate of charging of 41 is constant. The rate of charging of 41 serves as a comparison value for monitoring the time spacing between the signals and thus the speed of the shuttle. The rate of charging of 41 is variable by resistor 40, although 41 itself may be variable, and its value is also determined by the value of components 45, 46. Should the shuttle speed be too slow, 41 charges for a longer period and reaches a threshold which fires a transistor 47 and thus energizes a magnet 53 to initiate a shut-down operation. Alternatively, the value of resistor 40 is continuously varied so that the capacitor 41 reaches the threshold value and the transistor 47 is fired to light a lamp 52. The resistor 40 is thereafter again increased slightly in value and a switch 51 is charged to the magnet 53. The resistor 40 may be provided with a scale. In alternative embodiments two coils and one magnet may be used or the coil(s) may be replaced by capacitance(s). The capacitor 41 may be replaced by a step-by-step switch which supplies a signal at each complete revolution and in which the number of steps and/or the speed of operation may be varied. The capacitor 41 may also be replaced by a regulatable mechanical device.