baber/WOPTO huggingface dataset:
Patent GB-581983-A (GB)
Title: Improvements in or relating to hollow resonators for high frequency electron discharge tubes
IPC: H01J25/12
Filed: 1942-05-13
Abstract: 581,983. Velocity - modulated tubes. SPERRY GYROSCOPE CO., Inc. May 13, 1942, No. 279/43. Convention date, May 17, 1941. Divided out of 581,972. [Classes 39 (i) and 40 (iii)] In a velocity-modulated electron discharge tube such as described in Specification 523,712, each resonator has a dished rigid wall 13, 15, 17, Fig. 1, and a flexible wall 19, 21, 23, the latter carrying extensions projecting towards the rigid walls ; these extensions have (i) flanges 16 which increase the capacity between the walls and (ii) grids for acting with the beam. The extensions for the resonators 7, 9 together form a drift tube, these two resonators being coupled together to form an oscillation generator ; power output is taken from the third " buffer " resonator 11. A plate 29 is mounted on the drift tube and forms an abutment for thrust rods 43, 67 which with screws 39, 65 enable individual tuning of the resonators 7, 9 to be effected by deflection of the walls 19, 21. Screws 77 and rods 79 bearing on a plate 63 are used to deflect the wall 23. A fine adjustment of resonator 7 is effected by a micrometer screw 53 carried by the plate 29 and acting on a spring 49 fixed at its end 47 to the plate ; a thrust rod 41 is interposed between the spring and a plate 35 on the resonator 7. The output from the resonator 11 is taken through a concentric line to a phase adjuster consisting of a slider 114, Fig. 5, moving in a fixed outer conductor 93 and over an inner conductor 131, the slider having an inner conductor 129 extending a quarter wave-length beyond its outer conductor. The line 93, 131 leads to an impedance matcher or transformer consisting of a doubly-coned sleeve 111, Fig. 3, connecting inner conductors of the lines 93 and 95 ; the outer conductors are attached to the cylinder 91 with bored ends 97, 99 in which is housed the plug 101, 109 movable in the ends and adjustable in length. The line 95, Fig. 6, from this transformer is matched with a quarterwave antenna 89 by a tapered inner conductor 132 in a section 133 of half wave-length ; the profile of this conductor may be convex, concave or may have a point of inflexion.
Patent GB-410057-A (GB)
Title: Automatic flooding cocks for ash discharging plants
IPC: F23J1/00
Filed: 1934-01-04
Abstract: 410,057. Transmitting pulverulent material. SCHWABACH, M., 27, Westfõlischestrasse, Halensee, Berlin. Jan. 4, 1934, No. 366. Convention date, Aug. 16, 1933. [Class 102 (ii).] An automatic flooding-cock for an ash - discharging plant, instead of being operated by a moving part of the grate, is operated by a chain 7, which may be driven from the grate. The chain passes over a sprocket wheel 9, loosely mounted on a spindle 10 supported in the cock casing 11. The chain carries one or more projections 6 with tooth-shaped faces 8, engaging pins 5, 5a ... on a disc 4 mounted on the cock spindle, which is thus intermittently rotated in the same direction. The valve has an inlet connection 2 and discharge connections 3, 3<1>.
Patent GB-156685-A (GB)
Title: Improvements in and relating to electric fuses
IPC: H01H85/153
Filed: 1921-01-05
Abstract: 156,685. Eustice, A. L. Sept. 3, 1918, [Convention date]. Contacts.-In a cartridge fuze, the terminal blades have cylindrical portions fitting within similarly formed portions on the shell so as to stabilize the blade in all directions. The blades are detachable and may be inserted through the shell with the fuze attached between them and then rotated in the shell whereby they are fixed in an axial direction. Locking discs are then applied, followed by screw caps which complete the fastening. A shouldered blade 22 has secured upon its shank 23 an apertured disc 26 which constitutes the cylindrical portion referred to above and a second apertured disc 29 carrying shoulders 31. The shell 15 has flanged end members 16 with notches 21 corresponding to the shoulders 31. The terminals 22, united by the fuze, are passed through the fuze shell, the shoulders 31 passing the notches 21 until stopped by the blade shoulders 28, when the terminal blades are given a partial turn to engage the shoulders 31 with the inner faces of the flanges. Locking- discs 32 with lugs are slipped over the blades and the lugs are engaged with the notches 21 in the end caps, thus fixing the terminals in alignment and preventing rotation. End caps 19 having flanges 35 secure the parts in place.
Patent GB-668766-A (GB)
Title: Improvements in or relating to centrifugal oil cleaners
IPC: B04B5/00
Filed: 1950-01-06
Abstract: 668,766. Centrifugal separators. ALBION MOTORS, Ltd., FULTON, H. W., STEAD, E. B., and MORE, D. Aug. 23, 1950 [Jan. 6, 1950], No. 388/50. Class 23 A rotary oil cleaner comprising a drum 4 mounted on a hollow shaft 9 having lateral parts 12 constituting inlets for supply under pressure of the oil to be cleaned, is driven by the reaction of jets of the cleaned oil escaping from nozzles 5 projecting through the bottom of the drum. Ballbearings 8 are interposed between the shaft and the drum. Air included in the oil to be cleaned may leak from the shaft above the ports to collect in the upper part of the drum.
Patent GB-829319-A (GB)
Title: Improvements in or relating to machines for manipulating cut tobacco
IPC: A24C5/18
Filed: 1957-01-04
Abstract: 829,319. Continuous-rod cigarette-making machines. MOLINS, D. W., and MOLINS MACHINE CO. Ltd. Jan. 2, 1958 [Jan. 4, 1957], No. 436/57. Class 130. [Also in Group II] A passage for reducing tobacco stream inequalities, analogous to that of Specification 646,746, and comprising a belt 2, Fig. 1, a steel bridge plate 17 about one cigarette long, smooth side guides 19 and a steel belt 18 moving 2¢ times as fast as the belt 2, is incorporated in the apparatus of Specification 798,550 between the slow conveyer 2 and the pin-roller 10, the apparatus being otherwise modified by the addition of a roller 8A, Fig. 3, between the winnower 7 and the tobacco shower, by air-impelling means on the picker-roller 11, Fig. 1, to assist tobacco transfer thereby, e.g. auxiliary vanes 11B or picker teeth formed as blades, and by helical spacing of the picker teeth of the roller 11. The partition 9 may be slightly convex near the belt 2, the operative surface of which may have a light downward slope in the direction of its travel.
Patent GB-1259812-A (GB)
Title: Improvements in or relating to photographic cameras
Inventor: HARVEY DONALD MALCOLM
IPC: G03B17/52
Filed: 1969-01-03
Abstract: 1,259,812. Making slide transparencies. EASTMAN KODAK CO. Jan. 3, 1969 [Jan. 4, 1968], No.437/69. Heading G2A. In a camera in which a transparency slide unit is transported from a storage chamber to an exposure chamber, where it is processed after exposure by rupturing a pod of processing material, the rupturing is effected by a member moving transversely to the direction of movement of the transparency. Fig.1 (not shown) is a camera in which a stack of slides (T) in a storage chamber (10) are transported one by one by a slide mechanism (13) into an exposure chamber 11. Each slide has at least one rupturable pod of processing material. In the present example each slide has two such pods, 19, 20, the first containing a developing agent, and the second containing either another developing agent or a fixing, stabilizing, or bleaching agent. The rupturing members are a pair of pistons 35, 36, mounted at the ends of a transverse arm 39 pivoted at its centre on a shaft 40. This can be operated by a knob from outside the camera, so that one piston is driven down when the other is raised, and vice versa. The transparency unit is constructed as in Fig. 13 (not shown), having a light-sensitive element 18 opposite a depressed portion 25 of a strippable cover sheet. Engaging this portion 25 from below is a pressure pad 30, urged upwards by springs 34, 35. Initially, piston 35 is driven downwards, rupturing pod 19, and forcing the material therein into the space between depressed portion 25 and the element 18, Fig. 6. After a suitable time, piston 25 is raised, and pad 30 forces any unused material back into the ruptured pod 19, where it is absorbed by a sponge 23, position of Figs. and 8 (not shown). The knob is then turned the other way, to drive piston 36 downwards, rupturing the other pod 20 and forcing the contents into the processing space, Figs. 9 and 10 (not shown). Any remaining unused material is then forced back, as before, into pod 20 and absorbed by a sponge 24. The developed transparency is then pushed out of the camera.
Patent GB-466092-A (GB)
Title: Improvements in variable attenuators of electric alternating signals
IPC: H04B3/14
Filed: 1937-01-07
Abstract: 466,092. Impedance networks. SIEMENS & HALSKE AKT.-GES. Jan. 7, 1937, No. 520. Convention date, Jan. 8, 1936. [Class 40 (iii)] A four-terminal network consisting of a plurality of component networks, has its output taken from a tapping on one or more potentiometers connected between points on the component networks, so as to vary the relation between the transfer ratio and frequency. In one embodiment, each component network 1, 2, 3 ... n, Fig. 3, is bridged by a potentiometer Rs and the output is taken at XY. A single potentiometer Rs, Fig. 13, may be utilized in conjunction with a switch S1, S2, to throw it across any one of the component networks N. The potentiometer Ks may be replaced by a transtormer U, Fig. 15, in series with an impedance W and coupled to a valve V whose impedance is varied by alteration of its grid bias ; a connection to the junction of W and U is then equivalent to a tapping on a potentiometer. The component networks may be of the type shown in Figs. 4, 5; the potentiometer in the case of Fig. 5, may be constituted by the resistance R1, Fig. 7 (not shown), or the output may be taken from resistances R1, Re, Fig. 10, (not shown). In another embodiment the component networks N1, N2, Fig. 11, may be in parallel and the output taken from the potentiometer R<1>e. Each network N1, N2 may be constituted by a plurality of component networks which can be selected by switches, and the networks N1, N2 may terminate in potentiometers bridged by the potentiometer R<1>e, Fig. 14, (not shown). Specification 394,712 is referred to.
Patent GB-812353-A (GB)
Title: Improvements in the manufacture of metal articles from tungsten powder
IPC: C22C1/04
Filed: 1955-05-06
Abstract: Sintered tungsten articles of improved metallurgical properties are made by sintering a tungsten bar by the passage of a gradually increasing electric current up to a value within the range of 30 per cent to 60 per cent of the current required to melt the bar and purifying the bar by a delay stage before completion of the sintering.  The delay stage may be obtained by holding the bar at a fixed current value until an amount of additives and impurities not exceeding 0.001 per cent is uniformly distributed in the bar. Alternatively the current is interrupted in the range 35 per cent - 40 per cent of the current required to melt the bar and the bar is then cooled and immersed in a chemical solution to dissolve out the excess impurities and additives.  HF of 30 per cent - 50 per cent aqueous solutions may be the chemical chosen.
Patent GB-316352-A (GB)
Title: Improvements in apparatus for treatment of liquid hydrocarbons by the electric arc
IPC: C07C11/02
Filed: 1928-04-20
Abstract: 316,352. Mercier, Y. April 20, 1928. Divided on 316,336, [Class 2 (i), Acetylene]. Electrode furnace.-Petroleum, coal-tar, and similar oils are treated with the electric arc to produce a gas containing hydrogen and acetylene in a chamber containing a series of pairs of electrodes, one electrode B of each pair being hollow for the introduction of the oil and terminating in a hollow cone, into which the other electrode D, preferably of conical form, protrudes. The electrode D may be adjustable.
Patent GB-1291382-A (GB)
Title: Removable mowing platform for combine harvesters
IPC: A01D75/00
Filed: 1970-01-06
Abstract: 1291382 Combine harvester mowing platform JOSEF BAUTZ GmbH 6 Jan 1970 [1 Feb 1969] 646/70 Heading A1F [Also in Division B7] A combine harvester mowing platform 1 can be removed from its working position and lowered behind the main harvester vehicle [2] on travel gear 3, 4 with the towing direction transverse to its working direction. Travel gear 3, 4 comprises two supporting members pivotably connected to respective sides of the platform 1, each having at least two wheels spaced apart adjacent to one another and each arranged to roll in the plane transverse to the working direction of the platform. In the working position the members are pivoted upwards so the wheels lie behind the platform with respect to the working direction thereof, and, in the travel position they, are pivoted downwards so as the wheels make contact with the ground. The mowing platform may either be completely uncoupled from the harvester vehicle, or may be permanently connected to the harvester by means of a coupling bar [6] which is pivotally attached to both the harvester and the platform 1 so as to move about a vertical axis, the pivot point at the harvester end of the bar [6] being in such a position as the bar [6] acts as a draw bar.
Patent GB-584672-A (GB)
Title: Improvements in or relating to electrical condensers having plastic film dielectrics
IPC: H01G4/20
Filed: 1944-01-14
Abstract: A film consists of a polymerized organic material with which is incorporated a granular inorganic filler of a high dielectric constant, the ratio of film thickness to maximum grain size of the filler being substantially at or between 1.2 to 1 and 4 to 1, and the quantity of filler being sufficient to raise the dielectric constant of the film by at least 200 per cent.  The preferred range of the ratio of film thickness to grain size is between 1.2 to 1 and 2.1. Specified polymerized organic materials are polystyrene, polyisobutylene, polyethylene, mixtures of these, or cellulose plastics such as cellulose acetate.  Plasticizers such as dibutyl phthalate, insecticides such as pyridine and non-flam material such as one of the chlorinated esters of phthalic and may also be present. Specified inorganic fillers are titanium dioxide, barium titanate, strontium titanate and ceramic material. The filler may consist of a mixture of two or more powders of progressively decreasing size.  An example is given of a film of polystyrene containing titanium dioxide.  The films may be used as dielectrics in condensers (see Group XXXVI).  Specification 508,057 is referred to.
Patent GB-288696-A (GB)
Title: Improvements in or relating to liquid piston pumps and prime movers
IPC: F04F1/16
Filed: 1927-01-11
Abstract: 288,696. Christie, S. P. Jan 11, 1927. Explosion apparatus.-In an internal-combustion pump of the type in which a gas-intake chamber is provided separate from the combustion chamber and in open communication with the lower end thereof, as described in Specification 241,635, the intake-chamber 7 which opens into the combustion chamber 3 through a valve 8 is connected to the upper end thereof by an auxiliary conduit 19 controlled by valves 20, 21, for the purpose of permitting the transfer of gas from the chamber 7 to the chamber 3 after the main transfer valve 8 is closed. The valve 20 in the conduit 19 may be operated by a flow-operated abutment 22 in the chamber 3, or by the exhaust valve 6 through linkwork. The pump may be used for propelling ships.
Patent GB-452395-A (GB)
Title: Improvements in or relating to automatic weighing machines
IPC: G01G19/00
Filed: 1936-01-09
Abstract: 452,395. Weighing-apparatus. RUDIGER, E., 26, Mohrenstrasse, Berlin. Jan. 9, 1936, No. 816. [Class 143] An automatic weighing-machine, primarily for domestic use, comprises a precision weighing device in the form of a pendulum weight balance for weighing relatively small loads, and a main weighing device in the form of a spring balance which becomes operative whilst the pendulum balance is functioning and when the load applied to the machine exceeds a predetermined limit. The load pan a is provided with measuring graduations and is detachably supported by linkage upon a pendulum lever g. The weighing springs fare adjustably supported by the housing and are formed as hooks i at the lower ends. Small loads are balanced entirely by the pendulum lever g, but larger loads cause a U-shaped member s attached to the pan support to engage the hooks i and permit the springs to assist the pendulum lever. A reading index e co-operates with a graduated scale h on the pendulum lever to indicate the weight at a window d.
Patent GB-642109-A (GB)
Title: Improvements in or relating to thermally responsive electric circuit controlling devices
IPC: G05D23/275
Filed: 1947-01-10
Abstract: 642,109. Thermal switches; mechanical switches, retained set. IGRANIC ELECTRIC CO., Ltd. Jan. 10, 1947, No. 887. Convention date, Oct. 31, 1941. [Class 38(v)] The fixed contacts 9 of a thermal switch for a refrigerator are normally engaged by a spring-urged bridging contact 10, opened by bell-crank levers 20 with a snap action when the ends 23 of the levers 20 are engaged by an operating lever 25. In the closed position shown, the lever 25, which is pivoted at 34 to the base, is held against an adjustable stop 39 by springs 27 which are also attached to a control lever 26 pivoted to the base at 35. The thermal element 3 comprises a diaphragm 44 sealed in a fixed cup 45. As the refrigerator evaporator cools, the diaphragm falls until. a spring 6 forces the springs 27 over-centre, by means of a stirrup 57 and the lever 26,. to open the contacts. As the evaporatorwarms up again, the diaphragm 44 rises against the action of the spring 6 until, at a predetermined temperature, the springs 27 and levers 25, 26 snap into the position shown, thereby allowing the contacts 9, 10 to close to restart the refrigerator. The operating temperatures may be adjusted by varying the compression of the spring 6. by rotation of a cam 63 by a control knob 7. The cam bears on a projection 76 of a plate 65 which engages one end of a lever 64 bearing on the upper end of the spring 6.. The rotation of the cam 63 is limited by a projection on the cam and co-operating. stops (not shown). The cam also has a radial lug 92 whereby the lever 26 can be moved into the " open position for defrosting. Adjustment of the screw 39 varies the differential between the opening and closing temperatures.
Patent GB-718887-A (GB)
Title: A method of preparing artificial soil and the product of such method
IPC: C03C23/00
Filed: 1953-01-12
Abstract: A method of preparing an artificial soil comprises the mixing of dried, finely-ground clay soil with 5-15 per cent by weight of lime whilst being stirred, thereon spraying the mixture during further stirring with water to the amount of 10-35 per cent of the weight of the mixture, so that fine granules are formed, and subsequently air-drying the mixture so that atmospheric carbon dioxide will convert the lime into calcium carbonate.  The lime may be slaked or quick: if the latter, an initial amount of water is added, during mixing, sufficient to slake it.  Instead of water, an aqueous solution of a fertilizer, such as potassium nitrate or superphosphate of lime, may be used.
Patent GB-483250-A (GB)
Title: Improvements in servo-control devices for endless track and other vehicles
IPC: B62D11/08
Filed: 1937-01-12
Abstract: 483,250. Steering and controlling endless - track and other vehicles. ZAVODY TATRA AKCIOVA SPOLECNOST PRO STAVBU AUTOMOBILU A ZELEZNICNICH VOZU. Jan. 12, 1937, No. 899. Convention date, March 10, 1936. [Classes 79 (ii) and 79 (v)] A servo-motor device for steering endlesstrack and other vehicles by controlling the brakes and driving gear comprises four transmission devices for controlling the brakes and driving gear and four servo-motors, each servo-motor being adapted to actuate a different combination of two of the said transmission devices. Thus, one servo-motor may operate the two clutches driving the endless tracks, another may operate the two brakes on the tracks and each of the other two may operate the clutch and brake appertaining to one track. In the construction shown levers 16, 17 control the track clutches through cables 16b, 17b, and levers 18, 19 control the track brakes through cables 18b, 19b. Servomotor pistons 2 .. 5, are adapted to be connected to a pressure pipe line 6, 7, 6<1> by valves 8 .. 11 controlled by pedals 12, 13 and a manually-operated lever 15. If pedal 12 is depressed valve 8 is opened and piston 2 is raised, thus rocking levers 16, 17 and disengaging both clutches. If pedal 13 is depressed valve 11 is opened and piston 5 acts on levers 18, 19 to apply both brakes. If lever 15 is rocked in one direction valve 9 is opened and piston 3 rocks levers 16, 18 to disengage the clutch and apply the brake to one track, thus steering the vehicle to that side, while if the lever 15 is. rocked in the other direction piston 4 is raised and rocks lever 17, 19 to steer the vehicle to the other side.
Patent GB-633600-A (GB)
Title: Improvements in or relating to agricultural and like distributing machines
IPC: A01C3/06
Filed: 1948-01-12
Abstract: 633,600. Manure distributers. ATKINSON, R. L. Jan. 12, 1948, No. 940. [Class 6(i)] in a manure distributer, of the type comprising a vehicle 10 with an endlessband floor 12 feeding manure to rotary beaters 15, 16 and a rotary impeller 19, the impeller is adjustable from its normal position (full lines) to a position (shown dotted) close to the discharge end of the floor for the purpose of spreading fine powder. The impeller is mounted between brackets 22 pivoted at 23 to the side-walls of the vehicle and is secured in either position by bolts 24 passing through aligned holes in the sidewalls and brackets. A chain drive 26 to the impeller and the beaters passes around a jockey pulley 28, movably mounted to adjust the chain tension when the impeller is moved. Specification 609,034 is referred to.
Patent GB-916362-A (GB)
Title: Ammonia-type electric current-producing cell
IPC: H01M6/14
Filed: 1961-01-10
Abstract: 916,362. Primary cells. CORSON Inc., G. & W. H. Jan. 10, 1961 [Jan. 12, 1960], No. 994/61. Class 53. In a cell having a liquid ammonia/ammonium compound solute as the electrolyte, a sulphate of a heavy metal below ferrous iron in the electrochemical series is used as a depolarizer. The ammonia may be added at the time of use in the liquid or the vapour phase and in one construction an electrically fired heating cartridge 24 raises the pressure in the ammonia reservoir 22 sufficiently to fracture a frangible diaphragm 23. The depolarizer 1 is present as blocks 17 of a heavy metal sulphate and a conducting carrier. Paper solute carriers 14 are interleaved. A flat battery stack is also disclosed. Specifications 794,970 and 834,122. are referred to.
Patent HK-45896-A (HK)
Title: Illumination system
Inventor: STROOMER MARTINUS VICTOR CHRIS
IPC: F21V7/09
Filed: 1996-03-14
Abstract: A low-throughput illumination system is described, comprising a radiation source (1), a plurality of condensors (2, 14; 3, 15) for forming a plurality of beams (b1, b2) from the radiation supplied by the source and a first reflector (4, 5) for each beam, which reflectors direct the beam towards the principal axis (00 min ). The system comprises second reflectors (6, 7) which deflect the beams in the direction of the principal axis so that the beams have their narrowest constrictions (8, 9) in the exit plane (10) and are located close together.
Patent HK-60483-A (HK)
Title: Watch case and method of manufacture thereof
Inventor: KUECHLI GOTTFRIED
IPC: C04B35/10
Filed: 1983-11-24
Abstract: A watch case is made from an electrically conductive hard material compounded from aluminum oxide and titanium carbide by forming a blank by sintering the material, subjecting the blank to a heat treatment, spark machining the blank to its final form, and fine grinding and polishing the blank to a desired finish.