baber/WOPTO huggingface dataset:
Patent GB-1379698-A (GB)
Title: Sterophonic transmission and reception
IPC: H04H20/49
Filed: 1973-04-05
Abstract: 1379698 Stereophonic radio systems L R KAHN 5 April 1973 [10 May 1972] 16277/73 Heading H4L In a system of the type disclosed in Specification 970,051 an infrasonic frequency control signal is transmitted to switch automatically a co-operating receiver into the stereo mode of reception. Transmitter.-The L and R signals are added at 12, Fig. 11, delayed at 16 and supplied to the amplitude modulator of the transmitter. A 15 Hz oscillator 52 may be switched in for stereophonic transmission in one arrangement. The difference between the L and R signals is derived at 10 and supplied via a low-pass filter 24 to a phase shifter 40 providing a 90 degree phase relationship with the output of phase shifter 16. The L-R signal from 10 is frequencydoubled at 32 and added at 38 to the output of phase shifter 26 and the resultant is supplied via adjustable delay 44 to a phase-modulator 46 receiving a carrier wave from oscillator 45. In an alternative method of transmitting the control signal the output of a 15 Hz oscillator 58 is supplied to frequency or phase modulate the carrier from 45. The output of phase-modulator 46 is frequency-multiplied at 48 and the resultant signal is amplitude-modulated by the output 18 to provide a signal in which the two first-order sidebands carry the L and R signals respectively.  Receiver.-The output of a conventional superheterodyne receiver 62, 64, 66, 68, Fig. 2, is supplied to upper and lower sideband filters 72, 74 followed by detectors 94, 96, respectively, and to a double sideband detector 76. The output of detector 76 is used for A.G.C. and also as the monophonic signal supplied via electronic switches 82, 84 to the output. In the case of a stereo signal, filter 74 also acts as a slope detector for the control signal which is supplied to a voltage comparator 102 receiving the two D.C. voltages produced in envelope detectors 94, 96. When the receiver is properly tuned and a control signal is present, the two D.C. voltages are approximately equal and the control signal is supplied from gate 102 via amplifier 108 to energize a stereo indicator lamp SL which may also be used as a tuning indicator. If the two voltages are unequal, the control signal is blocked. The output of gate 102 is also supplied via diode 114 to control the switches 82, 84 to connect the respective stereo signals to the outputs 86, 90 and 88, 92, respectively. In a modification, the outputs of the upper and lower sideband filters are added and supplied to a double sideband detector to provide the monophonic signal and A.G.C.
Patent GB-815493-A (GB)
Title: Improvements in or relating to pipe couplings
Inventor: BASHAM EDGAR WILLIAM JAMES
IPC: F16L29/04
Filed: 1956-05-26
Abstract: 815,493. Pipe couplings. NORMALAIR Ltd. May 15, 1957 [May 26, 1956], No. 16349/56. Class 99(1). A quick release coupling comprises a first unit, Fig. 1, which may be fixed to the oxygen equipment of an aircraft, housing a non-return valve 7 and a fixed extension member 5 with communicating passages, and a second unit, Fig. 2, which may be connected to charging equipment and has within sealing means 19a preloaded extension member 21 adapted to be displaced by the extension 5 when the coupling is made. The first member has a tubular sleeve 1 with a fixing flange 2, an internal three-start screw-thread 3 and a tapered portion 4 from which projects the extension 5 with four radial holes 6 which communicate with a passage within the extension. The valve 7 is provided within the part 4 into which is screwed a union 10 locked by a nut 12. The second member has an outer sleeve 13, with a screw-thread 14 corresponding to the screw-thread 3, in which is rotatably mounted a blank ended sleeve 15 having a small hole at one end to accommodate the member 21 and screw-threaded at the other to engage a union 17 having a duct 27 therethrough. A further sleeve 18 which retains the pliable sealing sleeve 19 is located within the sleeve 15 and contains a plunger 20 on which is mounted the member 21 having four holes 25 which communicate with a compartment 26. The member 21 is thrust through the sealing sleeve 19 in pressure tight relationship, the plunger 20 being retained in position by spring 22. The union 17 also serves to retain the sleeves 18, 19 and spring 22 in position. A rubber hand grip 23 encloses the second member. In operation the extension 5 presses the member 21 inwards against spring 22 until it is sufficiently far through the sleeve 19 to allow fluid flow. On disconnection the non-return valve 7 seals the system and the member 21 follows the extension 5 into the sealing sleeve 19 preventing leakage.
Patent GB-1111030-A (GB)
Title: A modulating circuit
IPC: H03C1/36
Filed: 1967-04-11
Abstract: 1,111,030. Amplitude modulation. NATIONAL CASH REGISTER CO. 11 April, 1967 [6 May, 1966], No. 16434/67. Heading H3R. In a data transmission system the output of an oscillator 66 is fed to a counter 72 which develops a square wave at a fraction of the oscillator frequency to key on and off a transistor 24 which shunts the path from the oscillator 66 to an input resistance 18 for an amplifier (not shown). This provides a clock pulse output, and a similar circuit including peripheral equipment 78 provides a data pulse output across resistance 18<SP>1</SP>. The transistor circuit 10 is shown diagrammatically and in practice includes bias circuits (Fig. 2, not shown). The outputs from the two amplifiers are coupled by transformers to twisted-pair transmission lines (Fig. 5, not shown), and at the receiver the inputs pass to full-wave rectifiers (92, 94) feeding pulse-shaping circuits (96, 98) which in turn operate retriggerable one-shot multivibrators (100, 102); the latter provide an output for as long as pulses arrive (corresponding to the ON period of the squarewave from counter 72) and thereby demodulate the incoming signals. The oscillator 66 is preferably sinusoidal.
Patent GB-1171085-A (GB)
Title: Polymer Composition
IPC: C09D123/10
Filed: 1968-04-05
Abstract: 1,171,085. Coated paper. E.I. DU PONT DE NEMOURS & CO. 5 April, 1968 [22 May, 1967], No. 16455/68. Heading B2E. [Also in Division C3] In Example 1, 40 pound Southern Kraft paper is coated with a melted blend of a copolymer of ethylene and methacrylic acid neutralized with sodium ion and polypropylene.
Patent GB-457886-A (GB)
Title: Improvements in or relating to thermionic valve and the like circuits
IPC: H01J43/30
Filed: 1936-04-08
Abstract: 457,886. Valve amplifying circuits. BAIRD TELEVISION, Ltd., 58, Victoria Street, Westminster, and WILSON, J. C., 24, Whitworth Park Mansions, Moss Lane East, Manchester. April 8, 1936, No. 16514/35. [Classes 40 (iii) and 40 (v)] The load impedance of an amplifying-valve 10 or of a photo-electric cell comprises an electron multiplier 11. The electron multiplier may be of the type described in Specification 450,138, having two surfaces emitting secondary electrons, and acts as a negative resistance. The system gives high amplification, and reduction of the Miller effect. The multiplier 11 is primed with high-frequency voltage through a transformer 13 of high impedance and is preferably operated on the threshold of self-oscillation. The priming frequency is outside the range of the signal frequency. The amplified signal is taken off at the condenser 9.
Patent GB-770738-A (GB)
Title: Improvements in and relating to flush-pin gauges
IPC: G01B3/28
Filed: 1955-06-09
Abstract: 770,738. Linear dimension gauges; indicating- apparatus. KUSTUSCH, E. June 9, 1955 [June 9, 1954], No. 16574/55. Classes 106 (2) and 106 (4). [Also in Group XXIV] A depth gauge of the flush pin type comprises a cylindrical casing 10 open at the top and having an axial aperture 11 in the bottom, a sliding vertical member 15 disposed in the aperture and terminating at the top with a horizontal platform 16, a thick-walled cylindrical bushing 21 fixed axially into the casing 10 from above, the wall of the bushing 21 being defined at the bottom by an annular face 29 slanting upwardly towards the axis of the bushing. A pin 37 is axially disposed within the bushing for sliding vertical movement therein, the lower end of the pin comprising an inverted cone 33, the'side surface 35 of which is set at 90 degrees to the slanting face 29 of the bushing, and a plurality of balls 36, three as shown, upon the platform 16, each ball being in contact with the side of the cone and the slanting face of the bushing, vertical movement of the sliding member 15 being amplified by the balls to produce an increased movement of the pin 37. The gauge is fixed by screws through holes 41 to a bar (not shown) in which slides a vertical probe, the lower end of which enters the hole, the depth of which is to be measured and the upper end of which is in contact with the lower end of the member 15. For gauging the hole the movement of the probe, transmitted as described to the pin 37, causes the top 31 of the pin to move relatively to the top of the fixed bushing 21 which is formed in two levels 22, 22a corresponding to the tolerance limits.
Patent GB-1376857-A (GB)
Title: Foldable carriage for infants
IPC: B62B7/06
Filed: 1973-04-06
Abstract: 1376857 Folding push chairs ARTSANA SpA 6 April 1973 [7 April 1972] 16615/73 Heading B7B A folding push chair comprises uprights 1 having an extendable handle 2 held in adjusted position by a spring pressed button 39, Fig. 3 (not shown). A cup shaped joint C is connected to first, second and third rods 5, 6 and 33 also connected to uprights 1, base frame 7 and seat-supporting frame 4 to permit folding. The joint C has arcuate projections 20, 78 which constrain rod 33 to rotate about pivotal axis 21 and form abutments for the rods 5 and 6. Latch rods 31 pivotally connected to the joint C engage a pin 30 on the base frame 7. A seat T is supported by side bands F secured to the seat supporting frame 4.
Patent GB-594852-A (GB)
Title: Improvements in and relating to radial cylinder reciprocating pumps and hydraulic mechanism incorporating such pumps
IPC: F04B49/12
Filed: 1945-07-02
Abstract: 594,852. Radial reciprocating pumps. WATSON, C. D. July 2, 1945. No. 16817. [Class 102 (i)] In a radial revolving cylinder reciprocating pump, delivery from each cylinder 4 takes place during unequal portions of the two halves of the cycle during which the pistons 14 are forced inwardly in the cylinder, thus imparting a resultant reactive thrust tending to reduce or increase the eccentricity of the slide or thrust ring 7, according to the angular setting of the centrally disposed block 6 in. which are formed the diametrically opposed passages 16, 17 that communicate through the port spaces 18 with the cylinders 4, and serve as inlet or outlet ducts dependent upon the eccentricity of the slide 7. The slide 7 has two flattened surfaces 2, 2a in contact with the thrust faces 8, 8a and. is adjustable by the control rod 9.
Patent GB-1039662-A (GB)
Title: Oscillating spreader chute
Inventor: PAIGE RONALD STEPHEN
IPC: A23G3/02
Filed: 1964-04-23
Abstract: 1,039,662. Confectionery apparatus. BAKER PERKINS Ltd. April 15, 1965 [April 23, 1964], No. 16876/64. Heading A2B. In an apparatus comprising a continuous cooker from which toffee caramel or high boiled sugar is discharged on to a conveyer band having side walls, there is provided between the cooker and the band a shoot whic his so moved in relation to the band that the stream of confectionery is distributed over the width of the band in a layer of substantially uniform depth. Preferably the shoot oscillates to and fro across the full width of the band. A levelling blade may be positioned beyond the shoot over the band.
Patent GB-259281-A (GB)
Title: Improvements in spade-like toys
IPC: A63H33/32
Filed: 1925-07-01
Abstract: 259,281. Le Batt, H. July 1, 1925. No Patent granted (Sealing fee not paid). Implements.-An implement for use in working sand comprises a template having a handle projecting therefrom in a direction transverse to the plane thereof. The template comprises a flat plate a of wood or other material, provided at one end with point b and at the other with a V-notch c. A hole k is provided centrally of the plate for the reception of a tapered handle, which for packing purposes may be removed from the hole and passed through a loop e. Shaping attachments f may be fitted on to the plate by the engagement of the points of the notch with recesses m in the attachments. The handle removed may be used as a stylus or marker and may have one end finished in the form of a wedge. Reference has been directed by the Comptroller to Specifications 15904/12; and 116,175 and 125,905, [both in Class 6 (ii), Gardening &c. appliances].
Patent GB-119336-A (GB)
Title: Improvements in and relating to the Bodies of Airplanes.
Inventor: MURRAY JAMES JOSEPH
IPC: B64C1/00
Filed: 1917-11-16
Abstract: 119,336. Murray, J. J. Nov. 16, 1917. Cars and cabins; framework.-The bodies of aeroplanes are built up of a number of hoops 1 of wood, aluminium, compressed paper, &c. connected together by longitudinal tubes 2 which are connected by diametrical braces 3 of wire &c. and screw nipples 7 passing through the tubes 2 and hoops 1. The longitudinals are set flush with the hoops.
Patent GB-651999-A (GB)
Title: Improvements in or relating to machine tools having a displaceable carriage
IPC: B27B5/18
Filed: 1948-06-23
Abstract: 651,999. Circular saws. BAUMGARTNER. M. June 23, 1948, No. 16930. Convention date, June 28, 1947. [Class 145(ii)] [Also in Groups XXII and XXXIV] A circular saw in which the saw carriage runs on rails attached to the work, has the carriage 10 supported by means of rollers 12 on the track, which has at least two parallel rails 1 each having a lateral projection extending therealong, the carriage being guided by further horizontally disposed rollers 16 which are rotatably secured to the carriage and engage the underside of the projections. The rails may be circular, square or hexagonal in section and lengths of rails which are mounted on cross-members, are joined by pin and socket joints.
Patent GB-1420815-A (GB)
Title: Heat-processable photosensitive material
IPC: G03C1/498
Filed: 1973-04-09
Abstract: 1420815 Phthalazinone derivatives AGFA GEVAERT 9 April 1973 [27 April 1972] 16950/73 Heading C2C [Also in Division G2] 2-Phenylcarbamylphthatazinone is prepared by boiling phthalazinone and phenylisocyanate in dry benzene. 2-Benzoylcarbamylphthalazinone is prepared by adding benzoylisocyanate to phthalazinone dissolved in boiling dry toluene.
Patent GB-573853-A (GB)
Title: Improvements in and relating to devices for preventing overloading of geared pulley hoists
IPC: B66D3/16
Filed: 1943-10-16
Abstract: 573,853. Pulley-hoists. PERMAN, P. E. Oct. 16, 1943, No. 17031. [Class 78 (v)] In a geared pulley-hoist which is actuated through worm gearing, overloading is prevented by a ratchet device which is brought into action after a predetermined axial displacement of the worm shaft against spring pressure. The worm shaft 9 is slidably mounted in bearings 10, 12 and is prevented from moving to the right by a collar 11. Movement to the left against the resistance of the spring 18 can take place until the pawl 21, Fig. 3, comes into engagement with the ratchet wheel 13, which is fast on the shaft. A disc 14 rigidly connected with the wheel 13 bears against a friction disc 15 which is free on the shaft and bears against a ratchet wheel 16, also free on the shaft.
Patent GB-1045025-A (GB)
Title: Cine-camera with motor-operated driving system
Inventor: LEUSCHKE SIEGFRIED
IPC: G03B1/12
Filed: 1964-04-24
Abstract: 1,045,025. Cine cameras. PENTACON DRESDEN KAMERA-UND KINOWERKE, VEB. April 24, 1964, No. 17068/64. Heading G2E. A cine camera has a device providing rapid initial acceleration of the motor drive before the centrifugal governor 26 is engaged. The spring motor 1 drives a central wheel 3 by which both the governor and the sliding shutter 11 and claw 7 are driven. When lever 16 is released, cam 13 on driving wheel 6 is raised and the motor turns take-up spool 5 and the wheel 3 which engages cogwheel 17 on a disc carrying a pin 20. The pin turns in slot 21 in a co-axial cog wheel 22 until it engages stop 24. Cog wheel 22 is then driven and have the governor through its driving wheel 25. The length of slot 21 is such that pin 20 reaches stop 24 as shutter 11 covers gate 12 and claw 7 enters a perforative in film 8; the governor is therefore accelerated during the transport phase and has reached maximum speed before the next exposure.
Patent GB-1505025-A (GB)
Title: Preparation of aluminium phosphates
IPC: C01B25/46
Filed: 1976-04-27
Abstract: 1505025 Aluminium phosphate HOECHST AG 27 April 1976 [27 Jan 1975 24 July 1975] 17077/76 and 17078/76 Heading C1A AlH 3 (PO 4 ) 2 À3H 2 O is prepared by allowing it to crystallize from a solution which contains aluminium phosphate, water and a water-miscible organic liquid, the Al 2 O 3 :P 2 O 5  molar ratio in the solution being 1:2 to 1:6. The organic liquid may be wholly or partially miscible with water and may form a second phase in the presence of the dissolved phosphate.
Patent GB-751057-A (GB)
Title: Improvements in prilling apparatus
IPC: B01J2/02
Filed: 1954-06-10
Abstract: <PICT:0751057/IV(a)/1> <PICT:0751057/IV(a)/2> Molten material, such as urea or a mixture of ammonium nitrate and ammonium phosphate is formed into particles or prills by causing it to drip countercurrent to a flow of gaseous cooling medium within a tower 10, Fig. 1.  The molten substance is fed from a tank 11 to a number of tubes 16 each of which is surrounded by a jacket tube 18 through which steam is passed to maintain the inner tube at a temperature above the solidification temperature of the molten substance.  Outlet orifices 24, Fig. 4, are spaced along the inner tube and partitions 20 extend between the tubes to provide an opening for the passage of substance from the orifices and also to provide collecting wells 21 for condensate.  Electric heaters 27 are arranged adjacent the partitions.  Instead of continuous longitudinally extending partitions each outlet orifice may be surrounded by a frusto-conical wall extending between the inner and outer tubes and in this embodiment the heaters may be dispensed with.
Patent GB-172996-A (GB)
Title: Improvements in electric diaphragm alarms
IPC: G10K9/15
Filed: 1920-06-24
Abstract: 172,996. Apollo Plug Manufacturing Co., Ltd., and Brown, F. June 24, 1920. Diaphragm vibrators.-Horns as described in Specification 10473/14 have the electromagnet 7 fixedly mounted, adjustments only being provided for the armature, the diaphragm pin 11 which is actuated by the armature and, as usual, for the contact pin 15. In the form described, the electromagnet is mounted on a pressed sheetmetal plate 5 secured to the casing. The contact pin 15 is adjustable through, and the armature 23 is mounted on, an adjustable arm 26 on a sheet-metal bracket 16 mounted on the plate 5. The pin 11 is screw-threaded at the diaphragm end as shown at 12, and is slotted to receive a tool. A nut 14 and washers hold it in position when adjusted.
Patent GB-1435650-A (GB)
Title: Method and apparatus for measuring curvature and curvature variations in pipelines and the like
IPC: G01B7/28
Filed: 1974-04-19
Abstract: 1435650 Monitoring pipe curvature electrically AMF Inc 19 April 1974 [16 May 1973] 17214/74 Headings G1M and G1N The curvature of a pipe 12, Fig. 1 is measured by a probe 10 comprising a plurality of cups 16 in a drive section 10A which are propelled by a fluid flowing in the direction of arrows 22, and is coupled to a measuring section 10B consisting of a housing 24 centrally located by two arrays of wheels 26A-D, 28A-D, which are spring-biased to rest on the inner wall 12A of the pipe, the wheel rotations being counted by shaft encoders 26A3 &c. and compared with each other to establish a difference in length of the wall for a given distance of axial travel, which difference is indicative of the curvature. As shown, using one four wheel array 26A-26D, the signals from the corresponding shaft encoders 26A3-26D3 are fed to an instrument section 10C, where the distance travelled is determined from the sum of the shaft rotation signals, and the curvature calculated for a pre-set travel. This is recorded on magnetic tape stored in housing 30 for subsequent comparison with an initial curvature value for that section, whereby an excessive curvature change can be located. The housing 24 also carries a pendulum on a shaft coaxial with the probe axis and associated with an angle displacement encoder whereby the vertical along the measuring section of the probe is established relative to an opposing wheel pair 26A, 26B, and the curvature components along the vertical and horizontal axes are calculated from the measured curvature components along 26A, 26B and 26C, 26D. The apparatus may also be used to measure the curvature of a pipe with a non-circular crosssection.
Patent GB-400718-A (GB)
Title: Improvements in buckles or slides for suspender bands, brace webbing and other bandsor the like
IPC: A41F11/12
Filed: 1932-06-20
Abstract: 400,718. Buckles &c. WALKER, Ltd., T., WALKER, G. T., and WOOD, H. H., St. Paul's Square, Birmingham. June 20, 1932, No. 17344. [Class 43.] A lever buckle for suspender bands, brace webbing, and other bands comprises a frame 2 having a. fixed gripping edge 6 and a clamping lever 1 pivotally mounted on the upper part of the frame. The lever has a front depending gripping part adapted to co-operate with the edge 6 and a rear depending bar 10 adapted to move over a dead centre during fastening so that pull on a band 4 passed between the lever and the edge 6 will cause the front part to move into closer engagement with the band. In fastened position the edge of the front lever part lies slightly rearwards or opposite the edge 6. The frame may carry or be formed with a plate 3 whereon the edge 6 is provided either by teeth or serrations or by a forwardly bent flange. The teeth may be in two laterally spaced sets. Similarly the front part of the lever may carry two laterally spaced inturned gripping flanges 7 which may be toothed or plain. A finger lug 8 may be provided between the flanges 7. The rear bar 10 may be formed with a single projection 10a or with two or more spaced projections or it may be toothed or serrated. The return end 4a of the band may be swedged in prongs 5 on the plate 3, or, when the plate 3 is attached to a wire frame, the plate may be folded and clamped about the return end.
Patent GB-671192-A (GB)
Title: Improved dibber for the planting of seedlings, bulbs and the like
IPC: A01C5/02
Filed: 1950-07-11
Abstract: 671,192. Garden dibbles. GRAY, J. L July 11, 1950 [July 12, 1949], No. 17359/50. Class 6(ii). Conical dibbles are rotated during insertion and withdrawal. A transverse pin 12 in the stem 9 engages a helix 11 in a bush 7 held in the cone by a plate 16, movement of the stem taking place against the action of a spring 8 lodged in a narrower part of the bore of the dibble. For a multiple dibble a cross-bar 3 passes through sockets 13 on the stems 9. Springs 14 hold all except the central dibble in adjustable position according to markings F. A marker 17 may also be mounted on the rod 3.
Patent GB-1361779-A (GB)
Title: Vincamine salt and its use as a pharmaceutical composition
IPC: C07D461/00
Filed: 1973-04-11
Abstract: 1361779 Vincamine pamoate MERRELL TORAUDE 11 April 1973 [11 April 1972] 17394/73 Heading C2C The invention comprises vincamine pamoate, its preparation and its use in pharmaceutical compositions. It may be prepared by the reaction of pamoic acid, or an alkali metal salt thereof with vincamine or an acid addition salt thereof, e.g. vincamine hydrochloride or vincamine acetate. The vincamic pamoate may be used in admixture with diluents or carriers in pharmaceutical compositions in the form of tablets, capsules or lozenges.