baber/WOPTO huggingface dataset:
Patent GB-933850-A (GB)
Title: Analog to digital converters with high coding speed
IPC: H03M1/00
Filed: 1962-02-16
Abstract: 933,850. Analogueto - - digital converters. STANDARD TELEPHONES & CABLES Ltd. Feb. 16, 1962 [Feb. 21, 1961], No. 6134/62. Class 40 (1). [Also in Group XL (c)] The analogue signal at 29 is used to amplitude modulate at 116 a reference high-frequency signal having a phase of 0 degrees, the modulated signal is applied to a mixer 125, the other input to which is a reference signal having an amplitude of one half the maximum analogue signal and a phase of 180 degrees. The output of mixer 125 is a signal whose phase (0 or 180 degrees) indicates whether the analogue signal is greater or less than one half the maximum. This signal is used as a phase-locking signal for a parametric oscillator 126 which gives an output at 32 having a phase of 0 or 180 degrees representing the most significant binary digit. The output of oscillator 126 is also phase inverted at 127 and attenuated to one quarter of the maximum analogue amplitude before being applied to one input of mixer 131. The other inputs to this mixer are the original modulated signal and a reference signal having an amplitude equal to one quarter of the maximum analogue signal and a phase of 180 degrees. Thus if the analogue signal is greater than one half the maximum possible, the two inputs 39 and 40 are additive and the output of mixer 131 is the difference between the analogue signal and one half the maximum signal, whereas if the analogue signal is less than one half the maximum possible, the two inputs 39 and 40 are in anti-phase and cancel each other so that the output of mixer 131 is the modulated signal unaltered. In each case the phase of the output of mixer 131 is 0 degrees. The output at 31 may either be applied to the input 30 of a following stage in which the reference signals are halved, or it may be applied over a feed-like loop containing a 6 lb. gain amplifier (doubling the amplitude) to the input 30 of the same stage. In the former case a serial output is obtained by combining the outputs 32, or a parallel output is obtained by applying the outputs 32 as phase-locking signals to respective storage oscillators. In the embodiments described, all connections are waveguides and the mixers are constituted by directional couplers.
Patent GB-555370-A (GB)
Title: Apparatus for playing board games
IPC: A63F7/06
Filed: 1942-05-07
Abstract: 555,370. Board games. FIRTH, C. E. May 7, 1942, No. 6135. [Class 132 (ii)] Apparatus for playing board games comprises a board representing the playing area and marked with differently coloured squares and/or circles 9 to denote the opposing teams for either or both association and rugby football, and a disc or counter, Fig. 4, to represent the ball, the disc or counter being marked on each side with different coloured segments 7 to denote the colours of the opposing teams and to indicate the places at which a propellng disc must be applied. The coloured segments are also marked on each side with one, or two, dots 8 to determine the number of consecutive "kicks" allowed to the player. Goal posts either of the association or rugby type are inserted in holes 4, and in accordance with the rules of the game the players endeavour to project the "ball" through the goal or over the cross bar. Behind the goal lines are a number of coloured shapes 10 to denote "dead ball", "corner" or "try". Some of the coloured shapes 9 may be marked "Foul", "Offside" or in other terms used in the game.
Patent GB-1057354-A (GB)
Title: Purification of polycyanobenzenes
IPC: C07C255/51
Filed: 1965-02-12
Abstract: Polycyanobenzenes are purified by azeotropic distillation in an aliphatic glycol containing 4-9 carbon atoms and 0-3 etheric oxygen atoms and having at least 5 atoms between the two hydroxy groups. After the distillation, the distillate is cooled to separate solid polycyano-benzene. Specified glycols are diethylene glycol, triethylene glycol, dipropylene glycol, tripropylene glycol and pentamethylene glycol. The distillation may be effected at 60-250 DEG C. under a pressure between 10 and 400 mm. Examples are given of the purification of p-and m-dicyanobenzenes.  An example is given also in which a mixture of m- and p-dicyano-benzenes is separated by a two-stage azeotropic distillation in diethylene glycol under differing conditions of temperature and pressure.  Reference is made also to the purification of o-dicyanobenzene and 1,3,5-tricyanobenzene.
Patent GB-1026228-A (GB)
Title: Improvements in or relating to the manufacture of wire mesh
IPC: B29C65/04
Filed: 1965-02-12
Abstract: In a wire mesh comprising two sets of spaced wires extending transversely of each other, the wires are joined by resilient connectors, of e.g. spring steel, rubber or plastics material, extending across the top of one wire and having slots engaging the transverse wire beneath on either side of the intersection.
Patent GB-1211495-A (GB)
Title: Improvements relating to a servo-valve
IPC: G05F1/455
Filed: 1969-02-05
Abstract: 1,211,495. 211,495. Fluid-pressure servomotor systems. SOC. D'OPTIQUE PRECISION ELECTRONIQUE ET MECANIQUE. Feb.5, 1969 [April 26, 1968], No.6277/69. Heading G3P. A conventional two stage flapper valve Fig. 3 (not shown) controlled by an electromagnet is housed in a casing which also contains the elec - trical circuitry feeding the electromagnet. This circuitry includes a D.C. input 6 feeding a voltage stabilizer 7 providing a power supply to differential amplifier 8 in circuit with a comparitor 9 which is fed with a reference signal through lines 10, and a variable signal through line 11. The stabilizer also provides power supplies to the reference variable signal sources (not shown) through lines 12 and 13.
Patent GB-924466-A (GB)
Title: Improvements in or relating to seat assemblies for vehicles
IPC: B60N2/50
Filed: 1962-02-19
Abstract: 924,466. Seats. INTERNATIONAL HARVESTER CO. Feb. 19, 1962 [June 23, 1961], No. 6302/62. Classes 52 (1) and 52 (2). A seat assembly for a vehicle comprises a seat unit 15, support brackets 24, 25 fixed to the vehicle, a parallel linkage comprising links 36, 37, 38, 39 pivotally connected at 40 to the seat unit 15 and at 32, 33 to the brackets 24, 25 and arranged for movement of the seat unit 15 to different elevations relative to the support brackets 24, 25, the seat unit being located at said different elevations by locking means comprising two pairs of co-operating tooth sector members 48, 49 and pawls 82, 83, the pawls being pivoted at 74 on the links 36, 37 and the members 48, 49 being pivotally mounted about the axis 33 of the pivotal connection of the links 36, 37 with the brackets 24, 25, and latch means 52, 53 arranged to normally restrain the pivotal members 48, 49 against movement in a direction for elevation of the seat unit but disengageable to permit the linkage carrying the seat unit to be swung upwardly and rearwardly to an extreme position without disturbing the setting of the locking means. The pawls 82, 83 are biased by a spring 88 into engagement with the members 48, 49 and may be disengaged by means of a lever 79. The members 48, 49 are rigidly interconnected by a transverse holddown member 50 engageable by the latch means 52, 53 which are urged into latching engagement with the member 50 by a spring 68 and released by a pedal 64 through a push-rod 63 and lever 59. Springs 92, 93 assist the elevation of the seat unit 15 when the latch means is released. Specification 799,843 is referred to.
Patent GB-245634-A (GB)
Title: Improvements in or relating to formers for use in the winding of electric inductancecoils
IPC: H01F5/02
Filed: 1925-03-09
Abstract: 245,634. Fuller's United Electric Works, Ltd., and Welch, A. P. March 9, 1925. Inductances. - Formers for electric inductance coils comprise fiat, uncorrugated, thin sheet ebonite or other insulating material a provided on its outer surface with integrally formed, continuous, longitudinal fins b and bent round to form the former, its edges a<1> being overlapped or cemented or otherwise secured together. The edges a<1> may be butt-jointed and secured by an overlapping strip d. The fins b may be notched to receive the turns of wire and space the turns from the flat parts of the sheet u between the fins. The fins b may be parallel to the axis of the former or helically arranged thereon, and may be of unequal heights. To decrease the amount of insulation, the fins b and sheet a may be perforated as at e or have portions g removed. The. tube or one of the .ribs may be thickened to form a fixing support or to take fixing screws.
Patent GB-1530584-A (GB)
Title: Rotor blade retention system
IPC: B64C27/35
Filed: 1977-02-16
Abstract: 1530584 Resilient mountings LORD CORP 16 Feb 1977 [1 March 1976] 06418/77 Heading F2S [Also in Division B7] A rotor blade retention system comprises at least three laminated bearings 38, 40, 42 connected together in serial compression load transmitting relationship each including alternate layers of elastomeric and non-extensible material bonded together, at least part of each layer being inclined to the longitudinal axis of the blade 16 and having in section taken radially of that axis a portion projecting longitudinally toward an end of the blade.
Patent GB-639299-A (GB)
Title: Improvements in or relating to circuit-arrangements of the kind comprising a crystaloscillator
IPC: H04J1/06
Filed: 1948-03-01
Abstract: 639,299. Valve generating circuits. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. March 1, 1948, No. 6436. Convention date, March 4, 1947. [Class 40 (vi)] A discharge tube oscillator 12 stabilized by a piezo-electric crystal 15 has an alternating synchronizing voltage applied to its control grid across a circuit containing the crystal. The synchronizing voltage is applied to terminals 7, 8 and is taken from a winding 10 coupled to the anode circuit of an amplifier 9 and applied through switch S 1 across resistance 11. The synchronizing voltage is effectively applied across circuit 14, 15, 29, and the voltage across condenser 14 is applied to the control grid of valve 12 to effect synchronization. The output is taken from a transformer 17 in the anode circuit and fed to a load 16, a glowdischarge tube 18 serving to limit the output voltage. A sample of the synchronizing voltage from a winding 20, and of the oscillator voltage from a winding 21, are fed to a ring modulator 30 to give, across resistance 22, a voltage which is a measure of the phase difference between the two voltages. An adjustable phase-shift network 23 is interposed so that for a desired maximum phase difference between the synchronizing and oscillator voltages the voltage across resistance 22 will cause a valve 24 to become conductive. This causes operation of relay Re<2> to energize an alarm lamp 26 and to move switch S2 to position 1 to put a negative cut-off bias on valve 9 so as to intercept the synchronizing voltage. This causes operation of a relay Re<1> in the anode circuit of valve 9 to move switch 8 1 to. position 1 to connect the output to load resistance 28. Oscillator 12 then runs freely. To resynchronize, switch S2 is moved to position 1 and lamp 26 flashes periodically. Condenser 29 is varied to trim the oscillator frequency until the frequencies are equal as shown by the lamp 26 ceasing to flash. Switch S1 is then moved to position 1.
Patent GB-537357-A (GB)
Title: Improvements relating to two-part electric couplings
IPC: F21V17/10
Filed: 1940-04-10
Abstract: 537,357. Electric lamps. BRITISH THOMSONHOUSTON CO., Ltd., HUBBLE, L., and EDINBOROUGH, E. R. April 10, 1940, No. 6459. [Class 75 (iv)] [Also in Group XXXVI] A disconnectible coupling for supporting and making electro connections to a lighting fitting &c. comprises a fixed member 1 and a detachable member 7 each carrying contact-blocks 19, 20 and hinged together in such a way that movement about the hinge separates the contacts and a longitudinal movement of the hinge parts detaches the member 7. A tubular portion 2 of the member 1 has a slot 5 that allows hinging movement therein of the cylindrical portion 6 of the member 7 until the walls 8 that fit between the side walls of the member 1 are moved clear, when the portion 6 can be slid endwise out of the portion 2. A captive screw locks the parts, 1, 7 together. In order to permit adjustment of the lamp holder 10 relatively to a reflector carried by the part 9, the holder is supported on a stem 14 secured in a boss 15 by a screw 17 passing through one of several holes 16. A spring 18 acts to press the holder in a downward direction.
Patent GB-816877-A (GB)
Title: Improvements in and relating to the production of synthetic threads, ribbons or the like having a lobed cross-section
IPC: D01D5/24
Filed: 1956-03-01
Abstract: Threads, ribbons and like products having a lobed cross-section are produced by melt-spinning synthetic linear organic polymers, e.g. polyamides, polyesters and polyurethanes, in such a manner that two or more freslly spun products which are still in a liquid or semi-liquid state are so brought into contact with one another shortly after leaving the spinneret that they adhere to one another. The composite products thus formed are then caused to solidify, stretched and further treated in known manner.  The products may be brought into contact with one another by passing them over rollers. The solidification of the adhering products may be promoted by directing a transverse current of a cooling gas against them.  The spinneret orifices are preferably closely spaced and of equal and circular cross-section, and their axes preferably converge in the direction of spinning.  In the example, a polymeric caprolactam is melt-spun downwardly through a spinneret having three round extrusion orifices whose inlets are 0.50 mm. apart and whose outlets are 0.25 mm. apart.  The three liquid filaments thereby formed run together into contact with one another a few millimetres below the spinneret and thereafter solidify to form a single composite thread having a heart-shaped cross-section.
Patent GB-1224835-A (GB)
Title: Improvements in and relating to plugs or stoppers for pipe-testing
Inventor: MAXFIELD TREVOR WILLIAM FRANK
IPC: F16L55/134
Filed: 1969-02-06
Abstract: 1,224,835. Plug for pipe testing. CLARKROBERTS (SERVICES) Ltd. 22 Jan., 1970 [6 Feb., 1969], No. 6518/69. Heading F2P. A plug for pipe testing comprising a body, having an inflatable sealing member, and means for supplying fluid to said member, said plug being easily inserted into a tube when deflated. As shown, the body comprises two discs 1 and 2 and a coaxial spacer 6 and the inflatable member is a toroidal tube 8, fluid being supplied by duct 9 via a releasable valve 10. For pipe testing, such a plug is inserted at each end of a tube length and the cap 12 removed from pipe 11 to permit fluid to pass into the sealed region. The sealing member may be of rubber and the body of metal.
Patent GB-1379571-A (GB)
Title: Curl corrector apparatus for operating on continuous travelling webs
IPC: B65H23/34
Filed: 1971-03-10
Abstract: 1379571 Removing curl from webs MASSON SCOTT THRISSELL ENG Ltd 10 March 1972 [10 March 1971] 6522/71 Heading B8R A curl corrector apparatus comprises two curl corrector rods 16, 17 which, when inoperative, are positioned on opposite sides of the plane of a web feed path between two pairs of guide rollers 10, 11, 13, 14 and are displaceable to two alternative, operative positions to deflect the web to either side of the plane for correction of curl. The rods may be rotatably mounted, with a limited degree of lateral play, on a mounting plate 18, the plate being linked to a frame of the apparatus by non-parallel pivotable arms 21, 22 movable by a screw actuator 15. The rods are provided with back-up rolls 19, 20. The rods may alternatively be mounted on a pivotable arm (30), Fig. 2 (not shown), the back-up rolls being held between plates (31), (32), pivotable about the rod mountings and linked to the apparatus frame by arms (33), (34). In other forms the rods may be mounted on relattively slidable plates (181), (182), Fig. 3 (not shown), or hinged plates (184), (185), Fig. 4 (not shown), so that they can be urged together or separated by an actuator. In a further embodiment the rods and back-up rolls are supported on a carriage movable perpendicularly with respect to the plane of the web feed path between the guide rollers on rails.
Patent GB-1132031-A (GB)
Title: Improvements in or relating to tubes for a wall subjected to heat
IPC: F22B37/10
Filed: 1966-02-15
Abstract: 1,132,031. Furnace tube walls; finned tubes. PROVINCIAAL EN GEMEENTELIJK UTRECHTS STROOMLEVERINGS - BEDRIJF N.V. 15 Feb., 1966 [19 Feb., 1965], No. 6569/66. Headings F4B and F4S. [Also in Division B3] Heat exchange tubes for cooling furnace walls and supporting a refractory lining are provided with studs extending from the tube wall and attached thereto by welding, each stud comprising a core of carbon steel, around which is a jacket of steel with a chromium content of at least 12%. The core steel may contain traces of chromium and/or aluminium and/or silicon, and the jacket may also contain aluminium and/or silicon, The jacket is formed by deposition of chromium from a chromium-containing atmosphere, which may also contain aluminium and/or silicon. A rod may be subjected to this treatment and then cut in two to form two studs.
Patent GB-608993-A (GB)
Title: Improvements in or relating to thermostatic switch devices for electric ovens and the like
IPC: H01H35/26
Filed: 1946-03-04
Abstract: 608,993. Temperature responsive actuating elements. BRITISH THERMOSTAT CO., Ltd., and SHERLOCK, J. E. March 4, 1946, No. 6665. [Class 64(ii)] [Also in Groups XX and XXXVII] Switch contacts 24, 25 are actuated in turn by the expansion of a bellows 6 responsive to the temperature of an oven and through a push-rod 13 and levers 15, 18. The lever 18 is pivoted at 19 to a vertically slidable plate 20, the position of which is adjustable to vary the switch operating temperature by a control knob rotating a cam bearing on a stop on the plate 20 against the bias of a spring 35. In the " off " position a part of the cam surface engages the stop to maintain the contacts 24, 25 open. A capillary tube 10 connects the bellows to a bulb within the oven. Adjusting screws 52, 54 are provided, and an aperture 55 affords access to the latter. The bellows 6 are mounted in the outer casing 1 by means of an eccentric plate 50 to enable the rod 13 to be adjusted towards or away from the pivot 16 to vary the leverage. A pointer operated through rack and pinion mechanism by the lever 15, moves over the same scale as the control knob to indicate temperature within the oven. Specification 585,502, [Group XXXVII], is referred to.
Patent GB-525801-A (GB)
Title: Improvements in sighting instruments for measuring angles
IPC: G02B23/00
Filed: 1939-03-01
Abstract: 525,801. Angle-measuring instruments. FAIREY AVIATION CO., Ltd., HETHERINGTON, J., and BAILEY, E. E. March 1, 1939, No. 6716. [Class 97 (ii)] A navigational instrument for taking celestial observations, adaptable for use as a gunsight, is provided with two eyepieces through one of which the image of a celestial body may be brought into coincidence with that of a " bubble " constituting an artificial horizon and through the other of which may be read the angle of altitude of the celestial body, Greenwich Mean Time, Sidereal Time and like observations. The instrument is suspended in gimbal rings and covered by a fixed or retractable hood 20. The image of the celestial body is viewed through the eyepiece 38, the optical system comprising a reflecting prism 21 rotatable on a horizontal pivot by means of a knob 31, helically-grooved drum 25 and link 24, the image being directed by way of the prism 21, fixed reflector 32 and prism 33, to the optical eyepiece 38. Thus by turning the instrument by means of handles 36, 37 and by revolving the knob 31 the image may be viewed in the eyepiece. A bubble cell 44 is located at the foot of a tube 42 and is illuminated from a window 41, or by an electric bulb 48. When the instrument is vertical, an image of the bubble, after deflection to the prism 33 is viewed in coincidence with the image of the celestial body. The helically-grooved drum 25 is graduated to permit the altitude of the celestial body to be read in the eyepiece 55 through the agency of an optical system including a prism 52 on the link 24. In the field of the eyepiece are mounted seconds setting stop watches 56, 57 for Greenwich Mean Time and Sidereal Time respectively with press buttons 58, 59 for stopping them when the observation is made. A graduated azimuth band 61 may be mounted within the hood 20. The instrument may be used as a gunsight e.g. for aircraft, the azimuth band serving as a relative speed band and the helically-grooved drum 25 being calibrated in angles of elevation and depression, corrections due to height above the ground and variations in air density and temperature being indicated in the eyepiece 55.
Patent GB-1085264-A (GB)
Title: Improvements relating to floor blocks
Inventor: HIGGINS ANTHONY
Filed: 1965-02-17
Abstract: 1,085,264. Filler blocks for floors or beams. WILLIAM HIGGINS & SONS (MANCHESTER) Ltd. April 7, 1966 [Feb. 17, 1965], No. 6756/65. Heading E1W. A filler block for concrete floors and beams comprises a base 2 and two upstanding hollow portions 6, 8 for dissimilar thickness spaced apart to form a channel, which may contain a further upstanding hollow portion with a channel 20 in its upper surface. The blocks are placed in alignment in end-to-end abutment, with the thinner portion 6 of at least one block at one side, and with the thicker portion 8 of at least another block at the other side, so that the channels between the portions 6 and 8 of the aligned blocks form only a partly aligned pathway, which is filled with concrete. Preferably the portions 6, 8 alternate in the longitudinal direction. The channels 20 are centrally placed so that when the blocks are in alignment, these channels, which are filled with concrete, are also aligned.
Patent GB-850082-A (GB)
Title: Tractor drawn implements
IPC: A01B59/042
Filed: 1957-03-04
Abstract: 850,082. Agricultural implements. MASSEYFERGUSON (AUSTRALIA) Ltd., [formerly McKAY MASSEY HARRIS PROPRIETARY Ltd. H. V.] March 4, 1957 [March 12, 1956], No. 7033/57. Class 6(1). [Also in Group XXXI] A wheeled implement such as a seed sower is coupled to a tractor by means of a universal connection 17 and ground engaging tools 10 are raised and lowered by means of the power lift arms 20 on the tractor. Each tool is forced into the ground by a telescopic rod 13 pivoted to a lifting arm 14. All the arms 14 are secured on a rock shaft 15. One arm 14 is formed as a double arm which is connected to a link 30 pivoted to one arm 25 of a three-armed lever one arm 27 of which is connected by a shackle 36 to a drawbar 37 mounted on the lift arms 20. The arm 26 is connected to tension springs 31 which tend to pull the link forwards and force the tools 10 into the ground. The depth of penetration of the tools is limited by an abutment 32 on the link 30 which engages an abutment 33 on an adjusting screw 34 operated by the tractor driver.