baber/WOPTO huggingface dataset:
Patent GB-1190991-A (GB)
Title: Improvements relating to Neutron Generation
IPC: G01V5/10
Filed: 1967-05-16
Abstract: 1,190,991. Ion beam tubes. KAMAN CORP. 16 May, 1967, No. 22609/67. Heading H1D. [Also in Division G3] Neutron generating apparatus comprises a sealed envelope containing an ion source 12 and axially spaced earthed target 28 adapted to include a substance (e.g. deuterium or tritum) which reacts with impinging ions to produce neutrons, loaded reservoir 76 for releasing a hydrogen isotope within the chamber and an A.C. source connected between the ion source and the target. Accelerator tube 10 and the power supply (11), (Fig. 5, not shown) may be mounted within a protective housing containing oil or gas under pressure or evacuated to protect components from voltage breakdown. Cathodes 82 and 58 are preferably magnetic, and anode 88 within magnet 96 is preferably non-magnetic. Electrode 68 facing control electrode 62, defocuses the ion beam over the target and suppresses secondary emission which latter may also be achieved by a wire electrode (140), (Fig. 2, not shown). Reservoirs 76, 78 and 80 of Zr or Ti are respectively loaded with tritium, deuterium and unloaded reservoir 80 gettering non-reactive gases. Tritium loaded Ti or Zr target 28 may be on a Cu backing. Ion source pressures may be 10<SP>-4</SP> to 10<SP>-3</SP> mms. Hg and deuterium and tritium gas pressures of 2 Î 10<SP>-9</SP> to 1 Î 10<SP>-3</SP> mms. Hg are instanced. A control system for adjusting the pressure during tube operation includes a motor (130), (Fig. 5, not shown), controlling the reservoir (78) currnet through a rheostat (132), the forward or reverse windings (126 and 128) of the motor being selectively activated from the transistor amplifier (116). The amplifier input signal is from lead (108) of the A.C. transformer supply and is proportional to the target current. In a construction wherein electrode 68a is earthed, and a wire anode 140 is provided in series with large resistor 146, the pressure may be measured during the negative half cycles of operation (Fig. 2, not shown). The target may be preloaded or loaded and replenished in situ. The initial degassing process includes heating to 415‹ C. until a pressure of 1 Î 10<SP>-7</SP> mm. Hg is reached. In operation, to load or replenish the target, relatively low voltages (e.g. 20 to 75 kv) are applied between target and source while one of deuterium or tritium is present, this gas then being replaced by the alternative prior to high voltage application (e.g. 100 to 170 kv) between target and source for neutron generation. Focusing and gating electrode (148) and a PIG pressure gauge (158) may be included (Fig. 3, not shown). Applications to oil well logging and neutron reactor tests are instanced.
Patent GB-491270-A (GB)
Title: Transformation of electric relaxation oscillations
IPC: H03K6/02
Filed: 1937-03-16
Abstract: 491,270. Valve generating circuits. RADIOAKT.-GES. D. S. LOEWE. March 16, 1937, No. 22655. Convention date, March 28, 1936. Divided out of 492,275. [Class 40 (v)] Relaxation oscillations of saw-tooth form are stepped up in voltage by a transformer 6 designed to transmit the fundamental and all necessary harmonics, the primary coil being fed by an amplifying-valve 7 of low resistance. The anode of the valve 7 is supplied through an adjustable low resistance 15 and is coupled to the primary coil through a large condenser 16. The insulation of the transformer is high enough to withstand the anode voltage of the cathode-ray tube 8, its secondary coil being connected to that anode. The oscillations are produced by charging a condenser 3 through a resistance 2 and discharging it through a gridcontrolled gas-filled tube 9.
Patent GB-732138-A (GB)
Title: Improvements relating to automatic or semi-automatic weighing apparatus
Inventor: TERRY FRANCIS SIEVWRIGHT
IPC: G01G13/28
Filed: 1952-09-10
Abstract: 732,138. Automatic feed weighers. AVERY, Ltd., W. & T. Nov. 19, 1953 [Sept. 10, 1952; Jan. 2, 1953], Nos. 22670/52 and 101/53. Class 143. In an automatic feed weigher of the type in which material from an overhead hopper is conveyed by an endless belt to a weigh hopper, the speed of the belt being reduced to effect dribble feed and stopped to cut off the feed; a feed gate at the hopper outlet is opened and closed to a dribble position cyclically during each weighing operation independently of the weighing operation. Material from the hopper 10 is fed to the weigh hopper 13 by the belt. The weight is indicated by a pointer 16 which also co-operates with three contacts, as in Specification 662,455, to effect initiation of weighing, dribble feed, and cut-off. The cut-off contact is adjustable to compensate for material in transit. When the zero contact is closed, then provided the weigh hopper door 20 is latched to close a contact 23, the conveyer 11 is traversed at full speed. When the dribble contact closes, the speed of the conveyer is reduced and when the cut-off contact closes, the conveyer 11 is stopped and the discharge door 20 of the weigh hopper is automatically unlatched by a solenoid 19. The zero contacts also start an electric motor 31 to raise the feed gate 24 and lower it again, a switch 28 disconnecting the motor 31 after one revolution of the feed gate operating crank. In the lower position of the feed gate there remains a small gap to allow a relatively thin blanket of material to be fed forward. A second feed gate 37 is driven in synchronism with the first, and ensures that the material is fed evenly. A strip of metal 39 extends across the width of the belt to assist in breaking the flow of material at cut-off. The hopper outlet 12 can be adjusted manually by a slide 40 to determine the rate of feed which occurs whilst the feed gate 24 is open.
Patent GB-392179-A (GB)
Title: Improvement in rail hangers for furniture
IPC: A47C7/62
Filed: 1931-08-11
Abstract: 392,179. Spring upholstery. KRONHEIM, J., 2055, East 55th Street, Cleveland, Ohio, U.S.A. Aug. 11, 1931, No, 22679. Convention date, Feb. 14. [Class 52 (iv).] A metal rail hanger for furniture comprises a flat strip bent at rightangles to provide a long and a short arm, the long arm 2 being formed with two channelled recesses 5, 8 and attachment holes 4, and the short arm 3 tapered. Specification 347,008 is referred to.
Patent GB-1287069-A (GB)
Title: Apparatus for the production of webs of fibrous material
Inventor: FEHRER ERNST
IPC: D04H1/74
Filed: 1971-04-19
Abstract: 1287069 Lap forming-machines E FEHRER 19 April 1971 [23 March 1970] 22731/71 Heading D1N A web forming apparatus comprises a toothed drum 3 with associated toothed rollers 4, 5 an air nozzle 6 extending along the drum and discharging an air stream tangentially to the drum to carry fibres down to a vacuum roll 10, and a conveyor belt 8 for delivering the collected web. The vacuum roll includes an insert to vary .the area of the roll subjected to suction The vacuum roll 10 and the conveyor belt 8 are adjustably mounted to vary the horizontal distance from the drum 3 to the roll 10 so that the fibre orientation in the collected web can be varied. A shield 12 can be provided between the drum 3 and the roll 10.
Patent GB-206277-A (GB)
Title: Improvements in and relating to fishing tools for use in well boring
IPC: E21B31/12
Filed: 1922-08-22
Abstract: 206,277. Withers, J. S., (McCormick Drilling Tool Co.). Aug. 22, 1922. Bore-hole apparatus. - A fishing tool for removing objects from wells comprises a pair of jaws 2 pivoted at 3 in a casing 1 and normally held open by spring detents 4. The jaws are adapted to be closed by a wedge member 5, slidably mounted in the body and normally held in its raised position by a spring detent 6. Secured to the member 5 is a rod 8 passing through the lower half 9 of the jar members and terminating in a disc 10. The upper half 11 of the jar members acts as a hammer which engages the disc 10 when the tool comes to rest and thus causes the member 5 to move downwards to close the jaws 2 on the object to be removed.
Patent GB-1040967-A (GB)
Title: Method of and apparatus for removing liquids from solids
IPC: C07F7/04
Filed: 1963-06-07
Abstract: 1,040,967. Screw filter-presses. RUHRCHEMIE A.G. June 7,1963 [June 22, 1962], No. 22895/63. Heading B1D. A filter press with sieve plate 3 supported by a jacket 4 has a screw to which gas can be introduced at 9 and discharged through perforations 12 which cover not more than one third of the length of the screw. The material for treatment is fed to inlet 6 and emerges at 8. Between the last screw thread and the discharge of the filter cable there should be a plain zone to prevent undesired emergence of gas to the discharge opening. Another arrangement of gas discharge is illustrated by Fig. 2 (not shown).
Patent GB-941827-A (GB)
Title: Photo copying process
IPC: B41M5/382
Filed: 1960-07-01
Abstract: 941,827. Photocopying processes. KALLE A. G. July 1,1960 [July 8, 1959], No. 23092/60. Heading G2C. Reflex copying by infra-red radiation is effected by so exposing the base side of a heat sensitive element having a coating of pigmented wax as on its other side and which is in contact with a thin copy receiving sheet, the other side of which is in contact with a master to be copied. In Example 1 the sequence is thin wax base paper with coating comprising carnauba wax, mineral oil and Sudan Blue, thin paper or cellulose acetate foil as copy receiving sheet and then the master, to produce a blue image corresponding to the master on the receiving sheet. Other examples include references to tissue paper and cellulose hydrate foil coated with dyed synthetic waxes for use as heat sensitive elements, and numerous foils usable as either bases or copy receiving sheets are listed. Use of metal as receiving sheet in a second transfer process and etching thereof to make a printing plate is indicated.
Patent GB-1033935-A (GB)
Title: Electron multiplier
IPC: H01J43/24
Filed: 1963-06-10
Abstract: 1,033,935. Electron multipliers. RADIO CORPORATION OF AMERICA. June 10, 1963 [June 26, 1962], No. 23105/63. Heading H1D. An electron multiplier comprises a partcylindrical resistive, secondary-emissive coating 14 and a pair of field-shaping electrodes 16, 18 extending radially from adjacent the ends of coating 14 towards the tube axis, so that when a potential difference is applied between the ends of coating 14 and between electrodes 16, 18, electrons follow paths 30. As shown, a photo-cathode 22 is provided on electrode 16, but alternatively, the negative end of resistive coating 14 may be photo-emissive. Electrode 18 may be positively biased relative to the positive end of coating 14 to act as electron collector, or may be connected to coating 14, electrons being collected by a small plate or grid in front of electrode 18. Electrodes 16, 18 may be metal plates, or conductive coatings on insulating plates or on the sides of a V-shaped wedge formed in envelope 12. The resistive, secondary-emissive coating 14 may have a surface resistivity between 10<SP>5</SP> and 10<SP>10</SP> ohm and may comprise a mosiac of conducting secondary-emissive elements on a resistive film.
Patent GB-864953-A (GB)
Title: Improvements relating to apparatus for wire bending
IPC: B21F43/00
Filed: 1957-07-22
Abstract: 864,953. Corrugating wire. SIMS, W. J. July 22, 1958 [July 22, 1957], No. 23122/57. Class 83 (4). Apparatus for bending wire or strip into zigzag form comprises means for feeding the wire to be bent towards a rotatable cylindrical wheel from the surface of which fingers, around which the wire is bent, are successively caused to project, the wire being bent around the projecting fingers by an oscillator shuttle the motion of which is synchronized with that of the fingers, the fingers being subsequently withdrawn below the surface of the wheel to release the bent wire therefrom. Wire 4 passes through a guide 22, biased towards the axis of the path of the wire, and through an eye in a tongue 20 of a shuttle 19 oscillated by an eccentric cam 23 on a shaft 25 driven by a shaft 28 turned by hand or by an electric motor. The shuttle bends the wire 4 zig-zag fashion about successive fingers 3 projected radially through peripheral apertures in a cylindrical ring 2 indexed about a horizontal axis between successive oscillations of the shuttle by a pivoted arm 30 engaging behind the last-projected finger and rocked by an electromagnet 31 activated by contacts 36 engaged by a cam 38 on the shaft 25. Each finger 3 is projected in succession by a bar 12 raised, through rods 14, by an electromagnet 17 energized by the closing of contacts 35 by a cam 37 on the shaft 25 and is held projected by a spring-latch 39 pending the subsequent indexing of the ring 2. As the ring 2 rotates the fingers 3 are gradually retracted by spiral cam grooves 8, in spaced stationary cheeks 5, which engage inner T-shaped ends 9 of the fingers. The zig-zag wire is directed to an outlet shoot 41 and may be flattened by a magnetically operated hammer operated by contacts operated by the shaft 25. The corrugated wire or strip may be used for a heating element. Specification 864,954 is referred to.
Patent GB-770464-A (GB)
Title: A new or improved lamp for vehicles
IPC: B60Q1/26
Filed: 1954-08-10
Abstract: 770,464. Reflex reflectors. BATTERSBY D. J. Aug. 9, 1955 [Aug. 10, 1954], No. 23171/54. Class 97(1) [Also in Group XI] In a vehicle lamp comprising a rigid lamp base 10, a wedge shaped resilient mounting base 21 adapted to fit against a surface of a vehicle and a hollow transparent cover 13 (see Group XI), a reflector 17 for reflecting light from another vehicle is formed integrally with the cover but preferably comprises a separate glass or plastic disc having prismatic facets on its inner face and held in a recess in the cover at a small angle to the plane of the rear edge thereof. The cover is detachably secured to the rigid lamp base 10 which is held against the wedge shaped mounting base 21, the engaging parts of the lamp base 10 and mounting base 21 being symmetrical about a median horizontal plane so that they can be reversed with respect to each other to alter the angle between the reflector and the surface of the vehicle.
Patent GB-614835-A (GB)
Title: Improvements relating to hinged stays for the hoods of perambulators and the like
IPC: A47J27/21
Filed: 1946-08-03
Abstract: 614,835. Straps for hinged articles; hinges. BRETTELL, G. P. Aug. 3, 1946, No. 23180. [Classes 65 (i) and 65 (ii)] [Also in Group XXXII] A stay for a perambulator hood comprises two channel section arms 1 and 2 pivotally connected by the interengagement of knuckles 6 and 7 formed integral with the ends of the arms 1 and 2, and knuckles 8 and 12 integral with plates 10 and 13, riveted to arms 1 and 2, all the knuckles together with the washers 17 and 18 being coupled together by the rivet 16. The arm 1 has an extension 5 serving as a handle and the free ends 3 and 4 are fitted with sleeves for coupling to the hood. A catch 19, pivoted at the rivet 15, may have its end engaged in one of a number of holes or recesses formed in a flange 20 of plate 10 attached to arm 1, in order to adjust one arm relatively to the other.
Patent GB-188432-A (GB)
Title: Improvements in fish cleaning apparatus
IPC: A22C25/00
Filed: 1921-09-01
Abstract: 188,432. Baader, R. Sept. 1, 1921. Fish, dressing.-In a machine for heading,. cleaning and boning fish in a continuous series of operations, the fish are placed individually on shoots 7, on a rotating frame 5 which carry them past heading-disc knives 11, 12 and deposit them on a conveyer 13. Clamping-devices 19 grip the tails between horizontal rotary discs 16, 17 on which the fish are carried past a guide 59, which bends the fish backwards and break the backbones; belly-slitting knives, a spreading-plate for pressing the sides of the fish against the disc 16, 17, a brush 27, a backbone removing knife and a wiper 58 which ejects the fish after the clamping device is released. The shoots 7 co-operate with guides 6 and positioning abutments on the table 2 which is cut awav to allow the fish to fall on the. conveyer 13. The discs 16, 17 have mutually obtuse peripheries and are spaced by a disc 18, the discs 17, 18 being cut away at intervals to allow the treated fish to be ejected by the wiper 58. The clamps comprise spring-pressed levers 19 which project through the disc 16 and are released by rails 21. A guide rail 26 centres the fish before it engages a pointed slitter 23 which co-operates with a double disc knife 24 and the spreader 22 to slit the belly, eviscerate the fish, and spread the sides. The fish may be cashed by a water jet before brushing. The brush 27 is driven through gearing 48, 49, 53, 56 and the disc 16 by gearing 48, 49 and a wheel 50 which gears with a toothed ring on the disc. The backbone remover is carried in a pivoted block 30 and is moved into and out of the cutting- position by a rail 37 on the disc 16, a lever 85 and a spring 57. The knife 28 has two scooplike cutting-edges, between which a spring- controlled member 32 is situated. During the cutting, the member 32 is situated within the knife and ploughs out the backbones, and on the knife retracting the shoulder 33 slides on the face 34 causing the member 32 to project and eject fragments. The backbone remover may be held permanently out of operation by a lever 38 which engages an arm 47 on the shaft 29.
Patent GB-892257-A (GB)
Title: Improved process for the production of sorbic acid
IPC: C07C51/09
Filed: 1960-07-04
Abstract: Sorbic acid is produced by heating the polyester from crotonaldehyde and ketene at 115 DEG C.-145 DEG C. with an excess of concentrated aqueous caustic alkali, preferably under a non-reactive gas, e.g. nitrogen.
Patent GB-1427988-A (GB)
Title: Photographic exposure meter
IPC: G01J1/02
Filed: 1973-05-16
Abstract: 1427988 Exposure meters GOSSEN GmbH 16 May 1973 [1 Feb 1973] 23439/73 Heading G2X An exposure meter comprises a movable pointer 10 which is set according to film speed, on exposure time scale 9 which is adjusted to set the required exposure time against pointer 10, and a wedge 7 coupled for movement with the scale 9 and arranged in the light path of a photo-conductor 1 so that a meter 5 indicates the required f-value on a scale 6 . In alternatives the exposure time and f value scales are intercharged, and film speed is set in by adjusting the length of the coupling 8 between wedge 7 and scale 9. The meter may be built into a camera.
Patent GB-1145333-A (GB)
Title: Novel cycloalkenecarboxanilides and herbicidal compositions containing them
IPC: C07C233/12
Filed: 1966-05-25
Abstract: 1,145,333. Cycloalkenecarboxanilides. H. SCHWARTZ. 25 May, 1966 [27 May, 1965], No. 23467/66. Heading C2C. [Also in Division A5] The invention relates to cycloalkene carboxanilides of the general formula in which R is a cycloalkene radical having 3 to 8 carbon atoms and X n  is at least one of halogen. lower alkyl, lower alkoxy and halogenated lower alkyl of 1 to 7 carbon atoms except CF 3  alone or with 1 or 2 halogen atoms when R is 1 - cyclopentene or 1 - cyclohexene and n is 1, 2 or 3. Compounds claimed per se are 3<SP>1</SP>- chloro-, 3<SP>1</SP>-bromo-, 3<SP>1</SP>,4<SP>1</SP>-dichloro-, 4<SP>1</SP>-chloro-, 3<SP>1 </SP>- chloro - 4<SP>1 </SP>- methyl - 1 - cyclo pentene carboxanilide; 3<SP>1</SP>-trifluoromethyl, 3<SP>1</SP>-chloro-, 3<SP>1</SP>,4<SP>1</SP> dichloro, 3<SP>1 </SP>- chloro - 4<SP>1</SP> methyl, 3<SP>1</SP>,4<SP>1</SP> - dichloro - 3 - cyclohexenecarboxanilides. The compounds may be prepared by reacting the cycloalkene carboxylic acid halide with the corresponding aniline.
Patent GB-636387-A (GB)
Title: Improved liquid-fuel stove
IPC: F24C5/20
Filed: 1946-08-08
Abstract: 636,387. Vapour burner. WILSON, W. Aug. 8, 1946, No. 23518. Convention date, Aug. 8, 1945. [Class 75 (i)] In a liquid fuel stove the burner nipple 10 is located directly below a loop 9 in the vapour generating pipe and just above a shallow well 6 formed in the top of the fuel tank, the generating pipe consisting of a limb 7 terminating in the burner nipple and a limb 8 which includes a fuel control valve 11 and which extends to the bottom of the fuel tank. At starting methylated spirits is burned in the well 6 and the heat developes sufficient air or vapour pressure in the tank to force the fuel up the vapour generator pipe. This pressure is maintained during the operation of the burner by heat radiated from the generator tube to the roof of the tank assisted by heat conducted by the limb 8 to the fuel. A copper rod 17 may extend from the flame of the burner into the fuel to provide additional heat conduction means. A wind shield may be mounted on the burner legs and the tank may be provided with a spring-loaded safety valve.
Patent GB-360941-A (GB)
Title: Improvements in television systems
IPC: H04N3/12
Filed: 1930-08-06
Abstract: 360,941. Television. COMMUNICATION PATENTS, Inc., 60, Broadway, New York, U.S.A. Aug. 6, 1930, No. 23575. Convention date, May 5. [Classes 39 (i) and 40 (iii).] Relates to television systems in which an electric arc moves along an electrode system, under the influence of a magnetic field, to scan an object and consists in supplying the arc and preferably the field with alternating current. The current in the arc and the field strength thus maintain a constant relationship and the arc travels at a constant speed. The frequency of alternation is sufficiently high to render the frequent initiations of the arc imperceptible. Transmitter. A crystal-controlled oscillator 16 initiates the arc at a shortened gap 10 and energizes a field winding 13 and an opposing differential winding 11, which tends to maintain a constant field when irregular variations of potential occur. An image of the moving arc is projected on the object through a pinhole 7 and light reflected from the object falls on a cell 20, the resulting current being amplified and transmitted together with the frequency of the oscillator 16 and the synchronizing impulses. Receiver. The received signals are filtered at 44, 46, Fig. 2, so that the frequency of the oscillator 16 and the synchronizing impulses are applied to the electrodes 51, 61, the field and differential windings 11<1>, 131 and the synchronizer 281. The picture signals are amplified at 42, and superimposed on the arc, the interposed rectifier 45, preventing distortion occurring when the picture signals are in or out of phase with the arc frequency. The transmitter and receiver may alternate in function as described in Specification 360,470. Synchronizing. The master oscillator 16 supplies impulses to the synchronizer 28, Fig. 1, shown in detail in Fig. 3, which energize the input of a valve 51, Fig. 3. These impulses normally occur when the arc passes the gap 10 or the points 31, Figs. 1 and 3, energizing the input of the valve 50, Fig. 3. When the valves 50,51 are energized simultaneously, each increases the grid bias of the other through transformers 57, 58 and rectifiers 56, 54, so that they both remain nonconducting. If the arc is moving too rapidly, the valve 50 is energized before the valve 51 and by increasing the grid bias of valve 51 will prevent it being energized by the impulse from the oscillator 16. The current through the valve 50 energizes the input of the valve 64 through a transformer 61 and the winding 33, Fig. 1, is energized through a transformer 34, which decreases the field acting on the arc and so decreases its speed. Conversely, if the arc lags, the valve 51 is energized, and the valve 65 energizes the winding 33 to increase the speed of the arc.
Patent GB-1319690-A (GB)
Title: Electro-optical apparatus
IPC: G02B26/10
Filed: 1970-10-08
Abstract: 1319690 Scanning apparatus HAZELTINE CORP 8 Oct 1970 [6 Nov 1969] 23594/72 Divided out of 1319686 Heading H4F The subject matter of this Specification is identical with the electro-optical arrangement described in Specification 1,319,686, and the claims are directed thereto.