baber/WOPTO huggingface dataset:
Patent GB-1015664-A (GB)
Title: Method and apparatus for automatically following a curve
IPC: B23Q35/128
Filed: 1961-12-28
Abstract: 1,015,664. Automatic character reading. GENERAL ELECTRIC CO. Dec. 28, 1961 [Jan. 12, 1961], No. 46459/61. Heading G4R. [Also in Divisions H4 and G1] The character displayed on a transparency 1 has superimposed on it a scanning beam 2 from cathode-ray tube 3. Light passing through the clear parts of the transparency is received by a photo-multiplier 5. The beam is controlled by X and Y voltages applied to the deflection plates through amplifiers 7 and 8 from adders 9, 11. The beam describes a small search circle under the influence of a generator 13 which produces sine waves in quadrature. The position of the centre of the circle is required to trace round the outline of the character in steps equal to the radius of the search circle. The value of the #X and #Y voltages at the output of the circle generator at the instant that the search circle crosses from white to black is repeatedly added at 9 and 11 to the previous X and Y values. For this purpose the photomultiplier output is differentiated and used to set a trigger 23 to produce positive and negative sampling pulses or leads A, B which are applied to diode bridge sampling circuits 15 and 19 to pass the #X and #Y values amplified at 14 and 18 to pulse stretchers which store the values briefly to derive velocity signals X and Y. These pass to Miller-type integrators 17 and 21 to obtain the X and Y voltages which are applied with the #X and #Y signals to the adders 9 and 11 so that the next search circle centred about a point where the previous circle cut the character. The trigger 23 is connected to a scale-of-two circuit 25 and to a switch 24. The switch has three positions; in the first the trigger 23 is connected directly to a self-blanking oscillator 26; in the second it is connected via the scale-of-two circuit 25 and in the third, via circuit 25 and a scale-of-four circuit 27. By adjustment of switch 24 the sampling operation may be made every time the search circle crosses from white to black, every other time or once in four times. The blocking oscillator 26 produces a sharp pulse which is amplified at 28 to give coincident positive and negative sampling pulses for the circuits 15 and 19.
Patent GB-1089358-A (GB)
Title: Method of making free thin films
Inventor: SHEPARD STANLEY CARDEN
IPC: B29D7/01
Filed: 1965-11-03
Abstract: 1,089,358. Making thin dielectric film. STANDARD TELEPHONES & CABLES Ltd. Nov. 3, 1965, No. 46538/65. Heading B5B. A coherent free thin film, less than 1 Á thick, of dielectric material is made by treating the surface of a flat substrate with a wetting agent, forming the film on the prepared substrate surface, and immersing the substrate in a liquid by which it is wetted, whereby the film is separated by capillary action of the liquid and floats off the substrate. The substrate may be glass, the wetting agent a liquid detergent, and the liquid water. The film may be formed from polystyrene, or from polycarbonate dissolved in 80 vols. per cent toluene and 20% dichloromethane. The solution may be spread by spin casting, painting, or spraying. After spreading, the film may be allowed to dry in a dehydrated atmosphere.
Patent GB-1005369-A (GB)
Title: Improved magnetic recording apparatus
IPC: G11B5/84
Filed: 1961-12-29
Abstract: 1,005,369. Magnetic recording. INTERNATIONAL BUSINESS MACHINES CORPORATION. Dec. 29, 1961 [Jan. 3, 1961], No. 46673/61. Heading H1H. A magnetic recording medium such as a magnetic tape includes a layer of anisotropic particles having their easy axis aligned at an angle # between 20 degrees and 90 degrees to the direction of motion during recording. The tape, made in any conventional way, has increased maximum bit packing density compared with a tape with its easy axis aligned longitudinally, as phase displacement is reduced. The Specification describes phase displacement with reference to NRZI recording. Consideration of the relationships between phase displacement and the angle #, the fall of output amplitude as # increases from zero to 90 degrees and the magnetic particle density lead to a preferred value for # of 4520 degrees.
Patent GB-1087000-A (GB)
Title: Guide means for a pile-driving hammer
IPC: E02D13/10
Filed: 1965-11-04
Abstract: 1,087,000. Pile driving. E. DORNFELD [trading as, DELMAG MASCHINENFABRIK REINHOLD 1)ORNFELD). Nov. 4, 1965 [Now. 5, 1964], No. 46703/65. Heading EIH. In a pile-driver lateral movement of a pile or piles e.g. two interlocking sheet-piles (5), Fig. 2 (not shown), while they are being driven is prevented by two pairs of shoes, or so-called gripping members, 6, 7 that are supported by rods 8 lodged in bushes 9, which are split and secured by clamping rings 11, 12 at the lowermost-ends of a pair of guide-rails 1, 2 for a ram or monkey 3, 4, the outer surface of each bush 9 being part-spherical in shape whereby the associated shoe can be locked in any desired position by tightening a set of screws 10. The shoes may be of any preferred configuration.
Patent GB-1017550-A (GB)
Title: Improvements relating to electronic amplifiers
Inventor: DREW ANTHONY JOHN
IPC: H03F1/34
Filed: 1963-11-27
Abstract: 1,017,550. Amplifier circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 13, 1964 [Nov. 27, 1963], No. 46877/63. Headings H3T and H3W. In an amplifier having a grounded grid or common base input stage T1, negative feedback (via R2) and positive feedback (via R3) are provided so as to reduce the input resistance at I to zero or a negative value. The gain is adjustable by variation of R2. Complementary transistors may be used.
Patent GB-1254917-A (GB)
Title: Electromagnetic relay
Inventor: MORI TETSUO
IPC: H01H51/06
Filed: 1969-09-26
Abstract: 1,254,917. Electromagnetic relays. MATSUSHITA DENKO K.K. 26 Sept., 1969 [27 Sept., 1968; 30 Sept., 1968; 13 Jan., 1969; 10 March, 1969; 19 March, 1969], No. 47453/69. Heading H1N. A pivoted armature relay has a resiliently deformable plate spring 20 which is mounted on the armature assembly and engages the coil frame or bobbin 7 before the completion of armature attractive movement to increase the restoring bias. The relay has an E-shaped yoke 1 with a coil on an insulating bobbin 7 on the centre limb 2 of the yoke 1 and the bobbin 7 forms a part of an insulating frame 6 having a terminal section 10 provided with fixed contacts 11 and terminals 12 therefor arranged so that the contacts 11 co-operate with movable contacts 31, 37 on the ends of springs 30, 36 forming parts of two movable contact blocks 27, 33 having insulating bases 28, 34 in abutment and secured to the yoke 1. An insulating cord 41 between the bobbin 7 and terminal 10 sections of the frame 6 has projections 46, 46<SP>1</SP> extending between the contact springs and movable by an armature 17 held above the yoke 1 by a spring hinge 22.
Patent GB-1315100-A (GB)
Title: Treatment of adiponitrile
IPC: C07C/
Filed: 1971-10-12
Abstract: 1315100 Adiponitrile, hexamethylenediamine DU PONT OF CANADA Ltd 12 Oct 1971 [15 Oct 1970] 47478/71 Heading C2C  Adiponitrile is purified by reducing the concentration of 2 - cyanocyclopentylideneimine therein by treating it with paraformaldehyde in the substantial absence of water. The adiponitrile may be that produced from adipic acid and ammonia in the presence of a dehydration catalyst or that produced by the hydrogenation of dicyanobutene. Hexamethylene diamine may be produced by hydrogenating the adiponitrile purified in the above manner. The adiponitrile may be hydrogenated directly without further treatment.
Patent GB-1498679-A (GB)
Title: Flare burner for waste combustible gas
IPC: F23G7/08
Filed: 1975-11-20
Abstract: 1498679 Flare stack burners COMBUSTION UNLIMITED Inc 20 Nov 1975 [18 March 1975] 47811/75 Heading F4T A flare stack comprises a vertical combustion chamber 40 which is elevated above the surface on which it is supported to define air inlets 53 at the bottom and which comprises a plurality of vertical panels 44 each having a lining 52 of a blanket of ceramic material, and a plurality of burners for supplying combustible waste gases to the bottom of the chamber. The bottom of the chamber is surrounded by a fence spaced therefrom and comprising panels 61 lined with glass fibre blanket 69; the blankets 52, 69 provide both sound and heat insulation. The burners are formed by gas discharge openings in radially or tangentially extending vanes 30 at the upper ends of pipes 29 extending from a main supply pipe 25 below soil or gravel 26. The gas discharge openings may be slots (32), Figs. 9-12 (not shown), which are directed to produce a vortex flow, and may be provided with an attachment (35) or (35a) having an inwardly or outwardly directed angle (36) or (36a) on which the gas impinges; or they may be nozzles 39 on the ends of vertical or inwardly converging tubes (38), Fig. 14 (not shown) or 38a, Fig. 15. A pilot burner 56 and igniter 58 are provided, and there may be further burners 54 for delivering liquid waste to the combustion chamber. The stack may be supported in an elevated position above the ground, Fig. 1, or above supporting structure such as the top of a building or the deck of a ship, Fig. 16 (not shown), a floor, Fig. 17, being provided below the burners and comprising a plurality of overlapping, spaced inclined plates 81 with strips 84 of fibrous insulating material secured to their undersides. Specification 1,498,680 is referred to.
Patent GB-1086858-A (GB)
Title: Improvements relating to the construction of buildings
IPC: E04B1/35
Filed: 1964-11-25
Abstract: 1,086,858. Erecting buildings. E G. V. HEROLF. Nov. 25, 1964 [Nov. 25, 1963], No. 47889/64. Heading E1A. In erecting a building by lifting floor slabs cast on the ground floor slab, the first slabs to be lifted are guided by temporary guiding frames initially fixed to the foundation and subsequently the guiding frames are detached from the foundation, fixed to one of the remainder of the slabs with which they are lifted and guide the frame and slabs on one or more of the slabs already secured in position. The walls, stair wells &c. are cast or erected as required to secure the floors in position. The guiding frames may engage the sides of the slabs or holes therein.
Patent GB-1482178-A (GB)
Title: Glass melting furnace and method of operation
IPC: C03B5/237
Filed: 1974-11-08
Abstract: 1482178 Glass melting furnace LIBBEYOWENS-FORD CO 8 Nov 1974 48375/74 Heading C1M [Also in Division F4] A reversibly fixed regenerative glass furnace of the kind having a melting zone and a firing zone, the boundary between which is in the region of the maximum temperature of the glass bath, the size of the melting zone in the furnace is varied by dividing the regenerators on either side into a first regenerator 28 associated with parts 25 nearer to the charging end and a second regenerator 29 associated with parts 26 nearer to the discharge end, and arranging a damper 44 in common passages supplying air to the regenerators at each side of the furnace at a point between the first and second regenerators so that the amount of air fed to the discharge end parts can be controlled so that the position of the maximum temperature zone in the furnace and hence its capcity can be controlled.
Patent GB-1224910-A (GB)
Title: Dictation recording or reproducing machine
IPC: G11B25/06
Filed: 1969-10-02
Abstract: 1,224,910. Dictation machines. INTERNATIONAL BUSINESS MACHINES CORP. 2 Oct., 1969 [14 Oct., 1968], No.- 48403/69. Heading G5R. The Specification describes and claims the manner in which a belt record is loaded into and ejected from a dictation machine generally described in Specification 1,224,909. A lever (10, Figs. 1,4, not shown), is moved to the right to position a belt gripper 50 to receive a belt 2 and in so doing retracts one of two rollers (63, 64) over which the belt is eventually positioned. The belt is inserted between jaws 53, 54 and pivots the upper jaw to free it from a rack 59 which would normally prevent the gripper being retracted. The lever (10) is returned to the left to retract the gripper until the jaw 53 engages a stop 62 to release the belt and to restore the roller (63) to its operational position. The belt has an aperture (2a) to provide for repeatable registration and the head is driven to record a helical track. The belt is ejected by moving lever (10) to the right until the gripper engages a stop 66, Fig. 7b, to cause the upper jaw to initially grip the belt and prevent its complete ejection after which spring 69 returns the gripper slightly to release the belt for manual withdrawal.
Patent GB-1106770-A (GB)
Title: Process and apparatus for the electrical discharge treatment of a film
IPC: B29C59/10
Filed: 1965-11-16
Abstract: 1,106,770. Preparing surfaces for printing. E. I. DU PONT DE NEMOURS & CO. 6 Nov., 1965 [18 Nov., 1964], No. 48658/65. Heading B6C. [Also in Division H1] Film 20 is treated to improve the printability, in a discharge gap to which is supplied a voltage having a trapezoidal waveform. A motor driven alternator 10 supplies a sinewave output of audio frequency (e.g. 3 Kc/s) through an adjustable autotransformer 11 and choke 12 to the primary winding 13 of a variable coupling step-up transformer 14, the secondary winding 15 of which is shunted by a capacitor 16 to form a tank circuit which has a Q greater than 5 and is tuned to the fundamental frequency. A choke 17 connected to electrode 18 forms with the capacitance of the interelectrode gap 18, 19 a circuit which is tuned to resonate at approximately 3 times the fundamental frequency. The choke 12 limits the current to the tank circuit at voltage peaks and thus prevents " runaway ". Additional autotransformers and treatment units may be connected to the lines 25. The electrode 19 may be replaced by an earthed roller which may have a dielectric coating (Fig. 6, not shown).
Patent GB-1383979-A (GB)
Title: Trolleys
IPC: B65H/
Filed: 1972-10-23
Abstract: 1383979 Hand trollies USAG UTENSILERIE SpA 23 Oct 1972 [18 March 1972] 48713/72 Heading B7B A trolley includes uprights 12, 14, 16 disposed radially equidistant from and parallel to a common vertical axis, and at least one tray 24 which is supported for rotational movement about the axis and between the uprights by roller bearings 26 secured to the uprights and engaging a peripheral guide 28 formed on the container. The uprights are rigidly fixed to circular trays 18, 20 and are provided with castors 32, one of which may be locked in a particular angular position, and another of which may be angularly locked or braked. Curved plates (40) (Fig. 2, not shown) may be fitted between the uprights to enclose the trays 24, one of these being removable to allow access to the trays. Accessories such as a vice 34 and lamp 36 may be fitted to uprights or stationary tray 18, and a resilient bumper ring 18<SP>1</SP> may be positioned on the tray 18.
Patent GB-1441837-A (GB)
Title: Pipe connector
IPC: F16L41/08
Filed: 1973-10-23
Abstract: 1441837 Pipe couplings UNITED-CARR Ltd 29 Oct 1974 [23 Oct 1973] 49316/73 Heading F2G A connector for connecting a pipe 23 to an aperture 25 in a panel 24 comprises a shank with a stud 13 at one end to receive the pipe 23, and a solid nose 19 at the other end with legs 14, 15 which allow the connector to be pushed through the aperture 25 and then spring out to retain it in place, and a skirt 12 to form a seal around the aperture, the shank being formed with an axial bore 18 leading to two transverse bores (not shown) opening out into the space behind the panel 24 from the pipe 23, the transverse bore furthest from the panel being of larger diameter than the other which thus acts as a safety passage should the larger bore become blocked. The connector is preferably of plastics material.
Patent GB-1483376-A (GB)
Title: Process and apparatus for metering and wetting polyelectrolytes
IPC: B01F35/60
Filed: 1974-11-15
Abstract: 1483376 Mixing solid and liquid R J RICCIARDI 15 Nov 1974 [4 Dec 1973] 49520/74 Heading B1C In a method of and apparatus for wetting a polyelectrolyte in powder form and dissolving it, the powder is metered by a screw feeder 10 into a pipe tee 26 where it is suspended in air supplied at a controlled rate, and injected by a nozzle 36 into a mixing and wetting chamber 32 to which water is continuously metered through a tangential inlet pipe 34. The wetted powder is discharged into an opening tank 54 having a mechanical stirrer 57, where solution is completed, and thence passed to a holding tank 64. Tank 54 is maintained under reduced pressure by a suction blower (72, Fig. 6 not shown) through a pipe (78) having at its lower, inlet end a screen (80) above which a layer (86) of water is maintained by a pair of tangential water supply pipes (82) so that any fines in the atmosphere of tank 54 are trapped and fall back into the tank.
Patent GB-1061100-A (GB)
Title: Control device for torque tool
Inventor: HORNSCHUCH HANNS
IPC: B25B23/145
Filed: 1963-12-16
Abstract: 1,061,100. Nut runner. INGERSOLL-RAND CO. Dec. 16, 1963, No. 49634/63. Heading B3N. [Also in Division F2] A power-driven impact nut runner comprises an air motor (15A), Figs. 1, 2, 5 (not shown), splined at (16A) to a hammer (17A), a cam (20A) keyed for axial movement on a shaft (21A), jaws (22A) mounted on the cam and slidable in slots in the hammer, a roller (19A) in the hammer which engages the cam, and an anvil (77A) having jaws (25A) which co-operate with jaws (22A). A spindle (21A) is keyed to anvil (77A) at (104), metal block (82A) is integral with member (84A), and spindle (21A) is keyed to anvil (77A) at (104). Rod (40A) has a sleeve (109) secured thereto, and lugs (110) are adapted to engage slots (111) in a plug (106) when the rod is moved downwardly against the action of a spring (112). Rod (40A) has a cap (114) with a socket (119) for engagement by a tool to rotate and axially move rod (40A). The torque control is adjusted by rotating plug (106) through rod (40A). In a modification, Fig. 4 (not shown), the torque control is adjusted by a screw (126) which varies the flow of rubber element (81B). In a further modification, Fig. 5 (not shown), the control is adjusted by a screw (135). The rubber elements may be replaced by incompressible means in the form of water, oil, glycerine or the like. In another modification, Figs. 9-14 (not shown), a lock-out torque tool comprises a motor housing (161), a helically toothed torque transmitter (164) secured to the motor rotor (162), and a driving clutch element (167) having a helically toothed counterbore (166). Element (167) has a tubular stem (168) on which a driven clutch element (169) slides, the elements (167), (169) having inclined co-operating jaws (170), (171). A second set of jaws (172) on element (169) cooperates with jaws (173) on a tool holder (174). Elements (167), (169) are normally locked together by a number of balls (180). In operation, when the predetermined torque is reached, torque transmitter (164) moves axially to deform rubber (191), thus moving a plunger (183) against a spring (184). The reduced portion (187) of the plunger is aligned with the balls, which move out of recess (182), to allow disengagement of jaws (170), (171) and (172), (173). Tool holder (174) is locked by a ball (198), Fig. 10 (not shown), backed by a rubber block (199), until further axial pressure is provided.
Patent GB-1511809-A (GB)
Title: Marker with three stage ink feed
IPC: B43K8/02
Filed: 1976-11-30
Abstract: 1511809 Reservoir pens GRAPHIC CONTROLS CORP 30 Nov 1976 [9 Feb 1976] 49805/76 Heading A4K [Also in Division B6] A pen intended for use in a recording apparatus comprises a fibre-stuffed reservoir 4, a feed wick 10 in a conduit 8 and a porous writing tip 12, with increasing capillarities in order so that ink flows from the reservoir to the writing tip. The reservoir 4 may be a replaceable cartridge.
Patent GB-1483237-A (GB)
Title: Tough refractory oxide eutectic article
IPC: C30B21/04
Filed: 1974-11-18
Abstract: 1483237 Composite article UNITED AIRCRAFT CORP 18 Nov 1974 [27 Feb 1974] 49829/74 Heading C1J A directionally solidified refractory oxide composite article, suitable for use in hightemperature high-stress applications, such as in gas turbine engines, comprises a matrix phase consisting of CaO/ZrO 2  and a reinforcing phase consisting of zirconium oxide embedded therein in the form of lamellae substantially orientated in the direction of principal anticipated stress, the overall composition of the article corresponding to or being close to the CaO/ZrO 2 -ZrO 2  eutectic composition. In the example, a mixture of CaO and ZrO 2  powders is pressed into bars without the use of a binder. The bars are hard-sanded into straight charge rods and these are sintered and then subjected to a zonemelting technique by slow passage through a small furnace in an atmosphere of argon. The resultant ingots are annealed and then samples taken having a direction of solidification parallel to the longest dimension.
Patent GB-1492290-A (GB)
Title: Air cushion vehicles
IPC: B60V1/16
Filed: 1975-12-05
Abstract: 1492290 Air cushion vehicles C D KNIGHT 5 Dec 1975 50116/75 Heading B7K An air cushion vehicle has an inflatable bag skirt 2 divided by a flexible wall into an inner bag 8 surrounded by an outer bag 12. The structure 1 houses a fan 3 in a duct 4 which communicates through a duct 14 with a cushion plenum chamber 15 and also through a passage 5 with a chamber 6 having an outlet 7 with the bag 8. Air from the fan passes also through a duct 11 into bag 12. A flap valve 16 is pivotally movable to close passage 5 if the pressure of air in chamber 6 exceeds the pressure in duct 4. A second flap valve 19 normally closes or restricts flow from chamber 6 to duct 11 but will open if pressure in duct 11 exceeds that in chamber 6. A flap valve 17 in duct 11 upstream of valve 19 is movable to close communication between duct 4 and bag 12 if pressure in the latter is greater than that in duct 4. A pilot-operated flap valve 18 controls communication between duct 14 and cushion chamber 15. Vent holes 23, Fig. 2, in the dividing wall, normally closed by the outer wall, enable air from the inner bag to flow to the outer bag should it be collapsed by a ground obstacle. Drain holes 21 enable water to pass from the inner to the outer bag and the water is discharged from the outer bag by moving valve 18 to close duct 14 from chamber 15 whereby increased air flow into the outer bag discharges the water through holes, not shown, in the outer wall. With the valve 18 in its lastmentioned position the outflow of air to the cushion is reduced, so that the lower face of the skirt bears on the operating surface 24 thereby braking the vehicle. The base of the skirt may be provided with fingers.
Patent GB-1255605-A (GB)
Title: Improvements in writing instruments of the ballpoint type
Inventor: SILVER DERRICK JOHN
IPC: B43K7/00
Filed: 1967-11-07
Abstract: 1,255,605. Ball-point pens. MENTMORE MFG. CO. Ltd. 11 Dec., 1968 [7 Nov., 1967], No. 50607/67. Heading B6P. A sleeve 11 embracing the nib-section 3e of a ball-point pen forms an overflow chamber, the annular entrance 13 of which has a width equal to or greater than the width of the annular gap 10 between the ball 4 and the ball seat 5. The end of the overflow chamber remote from the ball is vented' to atmosphere via a bore (12, Fig. 2).