baber/WOPTO huggingface dataset:
Patent GB-1261671-A (GB)
Title: Improvements relating to the detection of electromagnetic field anomolies
IPC: G01V3/165
Filed: 1970-02-20
Abstract: 1,261,671. Geophysical surveying. INTERNATIONAL NICKEL CO. OF CANADA Ltd. Feb.20, 1970 [March 7, 1969], No.8249/70. Heading G1N. In order to reduce the effects of variation in the orientation of a search coil 21 of a geophysical surveying apparatus a second search coil 22 is arranged at 90 degrees to coil 21 in minimum mutual coupling relationship therewith, a phase difference of 90 degrees is introduced between the outputs of the two coils and the outputs of the two coils are vectorially added to form a resultant signal. A transmitter coil radiating a primary field is carried in an aircraft towing a bird in which the two search coils 21, 22 are mounted with their coils in mutually perpendicular planes which intersect at a line perpendicular to a plane through the longitudinal axis of the bird and substantially horizontal. The 90 degree phase difference may be introduced by means of a phase shifter 25, Fig.2, connected to one of the coils 21, 22 or by tuning by capacitors 23, 24 one of the coils to the upper half power point and the other to the lower half power point. The two outputs are vectorially added at amplifier 26 and the resultant signal including any disturbance of the primary field due to radiated secondary fields caused by eddy currents in ores in the ground is passed to a voltage meter and recorder carried in the aircraft. The arrangement reduces the effect of lateral axis noise. A dual frequency transmitter may be used having two transmitting coils Figs. 5, 6 (not shown) emitting frequencies F1, F2 respectively, in which case a third receiver coil is added to the circuit of Fig.2, Fig.3 (not shown) and having its coils coplanar with the F2 transmitter coil. In this case the third coil is tuned to the F2 frequency and the coils 21, 22 to frequency F1 The resultant of coils 21 and 22 and the signal from the third coil are fed through a broad band amplifier to a signal analysis circuit Fig.4 (not shown) including two frequency channels, the detected outputs of the two channels being fed to respective inputs of a differential amplifier to give a resultant difference signal. A fourth receiver coil may be provided, Fig. 10 (not shown) which together with the third coil and associated capacitors is tuned to the half power points at the F2 frequency to provide a 90 degree phase shift. The vectorially combined third and fourth coil output signals is applied together with the resultant signal from coils 21, 22 to a signal analysis circuit to give a resultant difference signal. This arrangement reduces roll maneuver noise and/or yaw maneuver noise dependent upon the orientation of the plane of the fourth coil.
Patent GB-841469-A (GB)
Title: Aircraft wheels
IPC: B60B3/00
Filed: 1957-10-11
Abstract: 841,469. Aircraft wheels. BENDIX AVIATION CORPORATION. Oct. 11, 1957 [Nov. 19, 1956], No. 8262/59. Divided out of 840,565. Class 144 (1). An aircraft wheel comprises two sections 64, 66, the section 64 comprising two axiallyspaced hub portions 68, 70 which each receive a bearing 72, 74 respectively, are integrally connected by a reinforcing sleeve 76, and from each of which extends a generally radial load supporting web 78, 80, the hub portions 68, 70 being located respectively near the mid-plane, and one side of the wheel and the web 78, 80 being apertured for brake ventilation and connected integrally to the axial ends of a rim half 82 to which is coupled the other rim half comprising the other wheel section 66 to complete the tyre-carrying rim. As shown, the wheel section 64 is cast, and the section 66 is forged from magnesium or aluminium. The section 66 is bolted to the web 78 to define a brake housing and carries a plurality of disc brake rotor drive keys 58 bolted to its inner periphery.
Patent GB-375319-A (GB)
Title: Casting machine for lining bearings
IPC: B22D13/02
Filed: 1931-03-18
Abstract: 375,319. Casting composite articles. BOHN ALUMINUM & BRASS CORPORATION, 2512, East Grand Boulevard, Detroit, Michigan, U.S.A. March 18, 1931, No. 8362. Convention date, June 30, 1930. [Class 83 (i).] Casting-machines for lining bearings by centrifugal action have a rotatable head 50, Fig. 2, which can be moved axially to clamp the bearing 53 against a rotatable plate 54 and jaws 90 which move radially inwards. The head 50 is carried by a hollow shaft 36 in bearings 33, 34 of a slide 26 adjustable relative to a slide 20 which is moved by a rack 62, pinion 60, shaft 61, and handle 65, Fig. 1. The jaws 90 are moved by levers 91, sleeve 97, rod 100, and piston 103 in a cylinder 104 connected to the shaft 36. Fluid is supplied to and exhausted from the cylinder by connections 115, 116 allowing relative rotation. An electric motor 70 drives a belt 71 which normally runs on an idler 38 but can be moved on to a fast pulley 39 by shifting the motor along guides 18 by a rod 72 and lever 75. When the lever 75 is moved to the left the motor is shifted to bring the belt on to the idler and a brake 84 is applied by a rod 81 and means not shown. The levers 65, 75 have coacting projections 86, 85 which prevent the lever 75 from being moved to the right to start rotation until the lever 65 has been moved down to clamp the bearing and the lever 65 cannot be raised to release the bearing until the lever 75 has been moved to the left to stop rotation. The metal is poured in through an opening 25, Fig. 2.
Patent GB-1504748-A (GB)
Title: Locking hook for scaffolding
IPC: E04G7/30
Filed: 1976-01-15
Abstract: 1504748 Hooks ACCESS PLANT (HIRE & SALES) Ltd 15 Jan 1976 [28 Feb 1975] 8374/75 Heading E2A A hook 4 for securing a scaffolding part 50, e.g. a bracing strut or handrail, to a tube 12, has a mousing piece 6 which partly closes the hook entrance 44 and which is pivoted at 30 so that a latching nose 28 may be engaged by a nose 22 on a latching trigger which may be manually operated to release the tube. Insertion of the tube automatically causes it to be latched in by rotating the mousing piece against spring 32 to the position shown.
Patent GB-1503568-A (GB)
Title: Holder for tape cassettes or cartridges
IPC: G11B23/023
Filed: 1976-02-27
Abstract: 1503568 Storage racks KELRACK Ltd 27 Feb 1976 [28 Feb 1975] 8464/75 Heading A4T [Also in Division B8] A holder e.g. for cassettes 8, tape cartridges and/ or cassette library cases 4 comprises means 2 for receiving and locating a number of articles of at least two of these three kinds and for holding them against displacement by vibration. The holder is preferably a one-piece moulding of polypropylene or high-impact polystyrene with six grooves defining the receiving means 2. Cassette cases 4 are located on projecting wall portions 5 between side walls 3, and are resiliently retained by fingers 1, while cassettes 8 are retained by rear portions (7), Fig. 2 (not shown) of the grooves 2. Holes (11) may be provided for mounting bolts, etc., or selfadhesive connector blocks may be supplied. A lid (not shown) may alternatively have means for retaining the cassettes 8, etc.
Patent GB-433480-A (GB)
Title: An improved flexible container
IPC: B65D75/50
Filed: 1934-03-19
Abstract: 433,480. Collapsable tubes or containers. DUCKHAM, A., and DUCKHAM & CO., Ltd., A., 16, Cannon Street, London. March 19, 1934, No. 8498. [Class 11] [See also Group XVII] A flexible container for oils &c. comprises a tube a formed by uniting to one another e.g. by elastic glue, a plurality of layers of paper &c., e.g. kraft or manilla, the marginal portions b, b<1> at the open ends of the tube being pressed and secured together in planes substantially at right angles to each other. The ends may be secured by U -shaped metal strips c or one side at each end of the tube may project beyond the other to be lapped thereover and secured by glue, staples &c. The container may be filled, after both ends have been closed, through a suitable aperture in the side wall which is subsequently sealed. Specification 310,976, [Class 11], is referred to.
Patent GB-661781-A (GB)
Title: Improvements in apparatus for trimming ceramic hollow-ware
IPC: B28B21/96
Filed: 1949-03-30
Abstract: 661,781. Making pottery. WILKINSON BROS. (BURSLEM), Ltd., and WILKINSON, J. March 29, 1950 [March 30, 1949], No. 8554/49. Class 87(i) In machine for shaping ceramic hollowware comprising a power-driven turntable 14 provided with rotary suction chucks 16, the periphery of the work is shaped as it passes a fixed profile 36 and the ends are trimmed by cutters 47, 48 carried by the turntable and movable to operative positions by cams 43, 50. The cutters 47 are mounted on arms 46 and are operated from the cam 43 through rolls 42 on the lower ends of racks 39 which mesh with toothed segments 45 associated with the arms 46. The cutters 48 are operated directly through rolls 49. The chucks 16 are driven from a motor 34 by V-belts 33 which are arranged to be clear of the chuck pulleys 32 at the loading and unloading station. At this point, too, the suction applied to the chucks by a pump 13 is relieved, the chuck being connected to the pressure side 31 instead of the suction side 30. Each chuck is provided with a spring-pressed closure plate 17 for the hollow-ware article. According to the Provisional Specification, suction is applied to each chuck by a piston which is slidable in a hollow chuck spindle and is controlled by a fixed cam.
Patent GB-754379-A (GB)
Title: Improvements in or relating to impression taking compositions
IPC: A61K6/90
Filed: 1954-03-24
Abstract: In a plastic composition for taking dental impressions as described in Specification 754,375, the zinc fluoride is replaced by an alkali metal ferric fluoride.  U.S.A. Specification 2,657,971 also is referred to.ALSO:In a plastic composition for taking dental impressions as described in Specification 754,375 the zinc fluoride is replaced by an alkali metal ferric fluoride.  In an example 5 gm. of potassium ferric fluoride is added to 72 gm. alkali metal alginate, 220 gm. diatomaceous earth, 7 gm. tertasodium pyrophosphate, and 40 gm. calcium sulphate hemi-hydrate in the proportions by weight of 72 : 220 : 7 : 40.  U.S.A. Specification 2,657,971.
Patent GB-1555448-A (GB)
Title: Air-compression direct-injection internal combustion engine
IPC: F02B3/12
Filed: 1978-03-03
Abstract: In air-compressing, direct-injection piston internal combustion engines the action of partially applying the fuel in the form of a film to the combustion chamber wall and partially mixing it directly with the combustion air is already known, it being intended that the former should predominate in the upper speed and load range and the latter in the lower speed and load range. In known engines the distribution between wall application and direct air mixing is performed, for example, as a function of the temperature by adjusting the position of the injection jets and/or the fineness of their atomisation. By contrast, according to the invention a device is provided on the injection nozzle which keeps the fuel injection pressure on the nozzle bore constant or virtually constant over the entire engine operating range. The optimum jet characteristic is thereby maintained in all speed ranges. Wall application is largely avoided in the lower speed and load range because here the penetration capacity of the fuel jet is reduced owing to the shortening of the injection process.
Patent GB-899085-A (GB)
Title: Improvements in or relating to electrical phase sensing circuits
Inventor: CAMERON HECTOR FRANCIS LOVETT
IPC: H04B3/46
Filed: 1959-03-12
Abstract: 899,085. Phase indication. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. March 9, 1960 [March 12, 1959], No. 8638/59. Class 37. Apparatus for determining the relative phase senses of alternating currents in two distinct circuits fed from a common generator comprises a relay fed from one circuit over a transistor device controlled by the other circuit so as to operate only if the currents in the circuits are cophased and to be inoperative if they are antiphased. In a known carrier current signalling system wherein plural repeater stations spaced along a line receive an operating power supply over the go and return signalling conductors which carry voltages which are antiphased about earth, the direction of supply is determined at each repeater station by energizing transformer T1 in series with the supply current to excite the emitter-base circuit of transistor TR1 in shunt with opposed squaring and clipping rectifiers MR1, MR2. Shunt resistor R1 and series register R2 reduce the effects of phase variations with load. The primary of transformer T2 is centre-tapped to earth and energized across the go and return conductors to supply the repeater power, and also its secondary excites the collector-emitter circuit of the transistor in series with half-wave rectifier MR3 and capacitance shunted along relay RA, which operates on conduction of the transistor due to coincidence of the negative-going collector pulses with the negative excursions of the square wave applied to the base to illuminate gas discharge lamp NT2 over contacts RA1, RA2 when the load voltage and current are in phase; and remains inoperative to illuminate lamp NT1 when the load voltage and current are in antiphase due to reversal of the direction of supply. The transistor may be replaced by a bridge rectifier with one diagonal connected across the secondary of T and the other connected in series with the relay and half-wave rectifier to the secondary of T2.
Patent GB-765991-A (GB)
Title: Improvements relating to electrode supporting means for electric furnaces
IPC: H05B7/10
Filed: 1955-03-24
Abstract: 765,991. Furnace electrode holders. ELEKTROKEMISK AKTIESELSKAP. March 24, 1955 [March 31, 1954], No. 8653/55. Addition to 700,218. Class 39(3) In a furnace electrode support comprising a main electrode clamp 2 supplying current to the electrode 1 and when loosened allowing it to slide down and having a stop ring 5 clamped to the electrode and moving down therewith until it reaches a fixed stop and so prevents further downward movement of the electrode as in the parent Specification, the stop ring 5 comprises one or more flexible bags or diaphragms 7 to which fluid pressure is applied by remote control means outside the furnace to cause the ring 5 to grip the electrode, or, on release of pressure, to release it. The stop ring 5 carrying an outer ring 6 is placed above the electrode suspension casing 3, and it is not necessary to enclose the rubber bags or diaphragms with water-cooled shields. The suspension casing 3 is supported by a suspension frame 4, which forms the fixed stop, and springs 9 are interposed between the frame 4 and ring 5 to exert a braking thrust on the downward movement of the stop ring and to return it to its upper position when released. Alternatively hydraulic or pneumatic pistons may act as a brake and to return the ring 5 to its upper position. Specification 754,641 is referred to.
Patent GB-1495135-A (GB)
Title: Repeat-threshing equipment for combine harvesters
IPC: A01F12/18
Filed: 1976-03-04
Abstract: 1495135 Repeat - thresher for a combine harvester KOMBINAT FORTSCHRITT LANDMASCHINEN NEUSTADT IN SACHSEN VEB 4 March 1976 [7 March 1975] 08654/76 Heading A1F A combine harvester has a repeat-thresher 3, situated on one side of the threshing channel, and fed by a conveyor 4. Tailings pass from the conveyor 4, through an aperture 5, and drop onto a scoop wheel 12 having radial blades 13 and threshing pins 14. The grain derived from the repeat-threshed tailings passes through an opening 25 to be returned to the stepped floor 26, but upstream of where grain is received from threshing means T. The scoop wheel 12 is driven by gears 19 and a V - belt 22. When harvesting breakage-sensitive crops, the threshing pins 14, as well as pins 18 provided on the scoppwheel housing, may be removed. An inpection cover 27 is provided.
Patent GB-474204-A (GB)
Title: Improvements in flat irons provided with means for steam generation
IPC: D06F75/16
Filed: 1937-03-24
Abstract: 474,204. Hand-irons, KELLNER, L., KELLNER, M., and GEBERT, V. March 24, 1937, No. 8664. Convention date, Dec. 1, 1936. [Class 138 (ii)] An electric hand-iron is provided with a water chamber 5 communicating with a steam dome 6 from which a duct 8 leads to a superheating chamber 11. A discharge orifice 12 of restricted dimensions communicates with the superheating chamber whereby the steam is delivered under high pressure. A baffle 13 prevents access of water to the steam dome.
Patent GB-287902-A (GB)
Title: Improvements in carburettors
IPC: F02M7/11
Filed: 1928-03-22
Abstract: 287,902. Sturm, W. March 29, 1927, [Convention date]. Spray carburettors.-In carburettors of the type in which the float chamber air-space is connected with a main choke tube, and the fuel nozzle delivers into an auxiliary choke tube located in the main choke tube, means are provided toregulate the area of the air passage between the main choke tube and the mixing tube within which it is situated. The main choke tube c is situated at the side of the mixing tube a and is connected to the float chamber g by a conduit h. The space 1 between the choke and mixing tubes is controlled by a butterfly throttle valve 2. This valve may be pivoted out of centre and actuated by suction, being normally closed, or it may be actuated from and after a predetermined movement of the air throttle b through linkage 3 in which case the wings of the valve may be symmetrical. Fuel is supplied to the nozzle l in an auxiliary choke tube d through a conduit containing a constriction i and air may be admitted to this conduit through a conduit m having a constriction t and the mouth n of which is situated in the space 1. According to the position of the valve 2, the amount of air which enters the mouth n varies, and this variation exerts a correcting influence on the fuel flow.
Patent GB-345490-A (GB)
Title: Improvements in sheet registering devices for platen presses
IPC: B41F1/28
Filed: 1930-03-18
Abstract: 345,490. Feeding sheets. REMING- TON, L. F., 79, Cottage Street, Franklin, Massachusetts, U.S.A. March 18, 1930, No. 8702. [Class 100 (i).] Sheetregistering devices.-A sheetregistering device for platen presses is formed of a register bar 10 fitted with adjustable gauges 11 for registering the front edge of a sheet on the platen 3, and mechanism for moving the bar 10 longitudinally of the platen in order to centralize the sheet thereon is operated by the connecting-rods 4, 5 which operate the press platen. The sheet may be acted on by a side-registering device 46 carried by a slide 49 which is reciprocated on guide-rods 52. The bar 10 is carried by rods 12 which are moved in guides 13 on the platen and also through guides in brackets 14, 15. The bracket 15 supports the side-registering devices. Springs 28 normally draw the rods 12 to a position in which adjustable brackets 17 on them contact with the guides 13 to determine the lowest position of the bar 10, and the upward movement of the rods 12 is controlled by the contact with the brackets 14, 15 of blocks 18, which are secured adjustably to the rods 12 by means of screws 19 so as to enable sheets of different lengths to be dealt with. The blocks 18 are raised by the action of the connecting-rods 4, 5 which operate the rocking platen 3 and are fitted with shoes 34 acting on rollers 22 attached to bearing members 21 which slide on pins 20 attached to the blocks 18. The bearings 21 compress springs 23 which raise the blocks 18 until they contact with the brackets 14, 15, and further motion of the bearings 21 is taken up by the springs. The blocks 18 are fitted with locking pawls 25 which are engaged by spring- controlled latches 26 to hold the bar 10 in its raised position. These latches 26 are released by release pawls 32 on the bed as the platen opens out, thus permitting the springs 28 to return the rods 12 to normal position. One shoe 34 operates a lever 53 which actuates the slide 49 of the side-registering device 46. This device is pivoted to the slide 49, and a spring 51 maintains it in contact with an adjustable stop screw 50. A spring 60 returns the lever 53 and side-registering devices to normal position when the press opens. The sheet may be registered from the right or left side.
Patent GB-161063-A (GB)
Title: Improvements in metal construction of spars, longerons and the like for aircraft
IPC: B64C1/06
Filed: 1920-03-25
Abstract: 161,063. Mooney, D. J., and Brown, E. E. March 25, 1920. Framework.-Spars, longerons, &c. in the form of hollow girders of thin metal, of the kind in which the booms have longitudinal corrugations and the webs are bent inwardly to form approximately rectangular channels, have the edges of the webs a bent over in bulb form, as at c, Fig. 1, to cover the edges of the booms d, the turned-over portions of the webs being riveted, as at f, welded or otherwise secured to the booms. The webs may have staggered flanged holes formed in them. In modifications (1) the edges c are bulbed downwards; (2) the booms are more deeply corrugated, and the webs may fit closely to them, Fig. 8 ; (3) the webs are made in two pieces, Fig. 9. Specifications 8522/12, 26147/13, 121,006, 125,748, 126,085, 131,019, and 141,141 are referred to.
Patent GB-164883-A (GB)
Title: Improvements in wire twisting or knotting apparatus
IPC: B65B13/28
Filed: 1920-03-25
Abstract: 164,883. Cranston, A. E. March 25, 1920. Twisting wires together; shearing-adjuncts. - In an apparatus for twisting together the ends of wires looped round shooks or other bundles, a rotary member co-operates with a fixed member to grip the two ends of the wire, twist them togcther, and then release them. In the form shown, the wire cutter, and twister consists of three discs D, D', D<2> with open-ended slots, mounted on a shaft S', Fig. 4, the discs D, D' rotating with the shaft and the disc D' being secured to a slotted stationary head 19 by a screw 27. The head is closed by a plate P with an open radial slot registering with the slot in the head. The slot 33 in the disc D, Fig. 9, is V-shaped and the end of the. shaft has a groove. 32 of gradually decreasing depth registering therewith, Fig 4. The slots in the discs D<1>, D<2> are oppositely shaped as shown in Fig. 12, to provide cutting-edges 37, 39 for severing the wires. The under face of the. disc D contains an annular groove 34, Fig. 9, having a lug 35 at one end for gripping the severed ends of the wire by friction against the fixed disc, the groove being continuous so that obstructions such as pieces of wire may work out at the open end. The wire W is first led over an arm N, Fig. 1, pivoted on an operating-shaft 17, is passed through the slots in the shaft and discs and the end secured by hand between the lower face of the disc D<1>, Fig. 15, and a plate 44 which is loosely secured to the head 19 and is forced against the disc by a spring-pressed collar 43 on the shaft. On connecting the driving gear, the bundle B is fed by a pair of chains against the wire until it assumes the position shown dotted in Fig. 1, whereupon the arm N descends and threads the wire through the slots to complete the loop. A stop S<2> on the arm contacts with the head and closes, the ends of the slots in the disc to prevent radial movement of the wires. On rotation of the shaft, the discs D<1>, D<2> first come into engagement to sever the wires. The ends 51, 52, of the loop wires, Fig. 19, are then drawn by the disc Dover the edge of the disc D' and are gripped between the lug 35 and the face of the disc D<2> so as to extend into the groove 34. At the same time the end of the wire. carried by the arm N is bent over at 53, by the motion of the disc D<1>, and is clamped against the plate 44. The original end 54 of the wire at the same time is released and drops off the plate 44. Further rotation causes the wires to be twisted together as shown in Fig. 20 until the ends withdraw themselves from the groove. Upward motion of the arm then threads the wire through the slots in the discs, the end being held by the spring plate. Interchangeable discs D with lugs of different sizes may be used to suit wire of different gauges. Specification 164,551, [Class 94 (i), Packing &c.], is referred to.