baber/WOPTO huggingface dataset:
Patent GB-1268936-A (GB)
Title: Matrixing apparatus
IPC: H04N9/67
Filed: 1969-03-31
Abstract: 1,268,936. Colour television. R.C.A. CORPORATION. 31 March, 1969 [1 April, 1968], No. 16715/69. Heading H4F. Relates to matrixing apparatus for the three primary colour signal components of a televised scene which permits hue and saturation adjustment while preserving white balance, i.e. adjustment operations which change the hue and/or saturation of one colour component affects that colour component only. Further the apparatus is such that saturation and/or hue correction is only effective when a colour is present and thus signals representative of white or grey shadings are not modified. As shown, Fig. 1, the R, G and B signals are fed directly to adders 50, 51 and 52 and to colour difference amplifiers 20 and 21, 20a and 21a &c. to 20e and 21e. Each pair of difference amplifiers drives a non-additive mixer circuit 22, 22a &c. The circuit for providing correction of the green signal includes difference amplifiers 20 and 21 which provide G-R and G-B colour difference signals respectively. The mixer circuit 22 celects the most negative (least positive) of the G-R and G-B signals and if the resultant is positive the signal voltage G<SP>1</SP> is coupled through rectifier 25 to present +G<SP>1</SP> at one terminal of potentiometers 40 and 41 and -G<SP>1</SP> (inverter 30) at the other terminals. Adjustment of the slider of potentiometer 40 controls the saturation of the green colour content without affecting the overall hue of a subsequently reproduced image, and adjustment of the slider of potentiometer 41 controls the hue of the subsequently reproduced image by adding (or subtracting) a positive voltage to the R IN  signal and by subtracting (or adding) a positive voltage to the B IN  signal. Similar circuits are provided for correcting the red and blue signals. For magenta the mixer circuit 22c selects the most positive (or least negative) of the G-R and G-B colour difference signals, rectifier 25c passing the selected signal if it is negative. Similar circuits are provided for cyan and yellow correction. The rectifiers 23, 24 and 25 in all the circuits may be reversely connected (Figs. 4 and 5, not shown) in which case all the signals are of reversed polarity.
Patent GB-629038-A (GB)
Title: An improved rotary fluid pump or motor
IPC: F01C20/22
Filed: 1947-06-25
Abstract: 629,038. Rotary engines or pumps. TAYLOR, F. W. June 25, 1947, Nos. 16798 and 16799. Convention dates, Aug. 2, 1946 and Nov. 19, 1946. [Class 110(ii)] An engine or pump has oscillating vanes 7 carried by a rotor 6 and preferably means to adjust the capacity of the working chamber by lateral movement of chamber walls 10 or lateral movement of a part 31, Fig. 6 relative to a stator 30. The latter movement causes angular adjustments of the vanes, which are controlled by mechanical connection with the parts 10 or 31. In Figs. 1. 2, the vanes are controlled by slippers which move around a groove 20 in a ring 19 so that the vane segments 7c always are in sealing contact with the walls 10 and grooves 6e in the surface of the rotor. An eccentric pin on one end 7b of each vane is pivotally connected with a slipper. The walls 10 are moved laterally by fluid under pressure which enters, or leaves, compartments 8, 8a through ports 9, 9a, the walls being coupled by plates 12 which slide across the inlet and outlet ports 2, 3 of the engine or pump. The directions of rotation of the rotor 6 may be reversed by moving the walls 10 laterally in a casing 1. Pins 14, 14a connect the plates 12 to an outer control member 16 which moves with the vanecontrol ring 19, the pins passing through slots in a stator 15. A shaft 6c is connected with the rotor 6 which is carried on bearings 5, 5a. The walls 10 may be moved by mechanical means. A journal 7b on each vane is carried in a bearing in a rotor disc 6d. In another arrangement, Figs. 6, 7, 10 a stator 23 is within the rotor 36 and has a member 23a by which the pump or motor can be mounted. The stator carries a shell 23b. Inlet and outlet ports 24, 24a are provided for fluid which enters and leaves the working chamber through passages 25, 25a. A rotor spindle 34 passes through a passage 26 which carries bearings 28, 28a. The part 31 is moved vertically to regulate the capacity of the working chamber; the part 31 is circular at the end remote from the ports 24, 24a near which it narrows to the shape shown in Fig. 6. Movement of the part 31 is communicated to a ring 31c, Fig. 10, which acts on links 48, 46 and angularly adjusts the positions of the vanes 40 through a movable ring 45. Hydraulic means may be used to move the part 31. Sealing means 50, 51, are provided between the rotor and the stator. The end flanges of the rotor carry recesses 38, 39 for the disc-like ends of the vanes 40. Driving means for the rotor may be attached to studs 41. The apparatus may be used as a single or multiple torque converter, their outputs supplying a common pressure line. The apparatus may be used as a vacuum pump. The pump capacity need not be variable but constant.
Patent GB-334251-A (GB)
Title: Improvements in or relating to the treatment of catalyst masses
IPC: B01J38/00
Filed: 1929-05-31
Abstract: 334,251. British Celanese, Ltd., Bader, W., and Thomas, E. B. May 31, 1929. Methanol and other oxygenated organic compounds are obtained by passing mixtures of carbon monoxide and hydrogen, or mixtures thereof with vapours of aliphatic alcohols, esters or ethers through suitable catalysts e.g. zinc oxide, alone or admixed with metals such as zinc or copper, or mixtures of zinc oxide and chromium oxide, the said catalysts being periodically reactivated by passing over them hydrogen or a gas mixture richer in hydrogen than that employed for the synthesis, whilst maintaining the temperature and pressure substantially the same as employed tor the synthesis, e.g. 370‹ C. and 100 atmospheres.
Patent GB-1128842-A (GB)
Title: Improvements in or relating to agricultural implements
Inventor: FRYER JOHN TIM
IPC: A01D17/10
Filed: 1966-04-18
Abstract: 1,128,842. Endless conveyers. NATIONAL RESEARCH DEVELOPMENT CORP. 5 April, 1967, No. 16827/66. Heading B8A. [Also in Division A1] In a cabbage-harvester the cut crop is fed on to a conveyer 21 by a paddle-wheel 31 comprising a plurality of paddles 33 each of which is rigid in its direction of travel as the paddlewheel rotates but is flexible radially so that in the event of crop being trapped below one of the paddles, that paddle can yield radially to release it. The machine is mounted on a tractor 1 to extend alongside it and the cabbages are cut by two co-operating circular saws 7, 9 inclined towards one another at ground-level. The paddle-wheel 31 is mounted directly above the saws and feeds the inclined endless conveyer 21 which in turn delivers to a transverse conveyer 6. The space above the saws is closed laterally by two fixed plates 47 between which the paddles 33 fit with a small clearance. Each paddle comprises a bar 57 integral with a square-section arm 51 received in a socket 53 in the paddlewheel, the bar being connected with a second, radially-spaced, bar 61 by two lengths of rollerchain 39, 59 and by two hairpin-springs 63. The whole assembly is enclosed in a flexible cover (Fig. 3, not shown). In a modification, the parallel bars 57, 61 of each paddle are interconnected by spring-loaded lazy-tongs.
Patent GB-898169-A (GB)
Title: Improvements in electrical plug and socket connectors
Inventor: GOUGH ERNEST
IPC: H01R13/64
Filed: 1959-05-19
Abstract: 898,169. Two-part couplings. WALLSALL CONDUITS Ltd. May 19, 1960 [May 19, 1959], No. 16857/59. Class 38 (1). A plug of a plug and socket connection has an earth pin 14 and two current-carrying pins 15, each of rectangular crosssection and arranged so that the major axes of cross-section of the current-carrying pins are parallel to one another and the major axis of cross-section of the earth pin is at right angles to the two lines defining the major axes of cross-section of the two pins 15. The pins and contact holes of the plug and socket are thus in non-standard disposition and the plug and socket cannot be used on the mains supply or in connection with mainsoperated devices.
Patent GB-1195711-A (GB)
Title: Improvements in or relating to printing cylinders with printing plate clamping means thereon
Inventor: STEVENSON DEREK ANTHONY
IPC: B41F27/12
Filed: 1967-04-12
Abstract: 1,195,711. Printing apparatus. CRABTREEMANN Ltd. 2 April, 1968 [12 April, 1967], No. 16888/67. Heading B6C. Printing plate 8, which may be of the lithographic type, is held at its trailing edge, or at both of its trailing and leading edges, by clamping devices inset into the surface of cylinder 13 and each comprising a clamping element 1 made up of separate jaw-bearing parts 1A, 1B which are arranged end to end and may be displaced relative to one another to reduce the clearances 17 between them and so compress plate 8. The plate 8 is secured between upper jaws 2, 3 and lower jaws 5, 6. Preferably element 1 is made up of three parts, the central part 1B being fixed to cylinder 13 and the outer parts 1A and 1C being movable towards and away from it. Outer part 1A has oversized bores for studs 14 and collared jacking screws 11, which are threaded into cylinder 13 and respectively locate element 1 and move it to tension plate 8 after plate 8 has been gripped between the jaws by tightening of screws 10, which are threaded into lower jaws 5, 6. Screw 21 and eccentric 22 on bridge 18 are released before part 1A is moved by screw 23, then resecured. To return part 1A to its original position screw 23 is turned until it is clear of abutment 24 and eccentric 22, which incorporates a cam acting on the inner surface of a slot in bridge 18, is turned with a tommy-bar. Inward lateral deformation of plate 8 at its trailing edge, by inward movement of the outer parts of clamping element 1, may be made to compensate for the distortion of material printed on which takes place while an image is being applied to it, and so facilitates retention of register when multiple images are successively applied in multicolour printing.
Patent GB-169495-A (GB)
Title: Improvements in or relating to mathematical demonstration apparatus
IPC: G09B23/04
Filed: 1920-06-22
Abstract: 169,495. Battey, A. F., and Pattison G. June 22, 1920. Teaching geometry.-Apparatus for demonstrating trigonometrical ratios comprise a circular frame of wood or other material bearing a circular scale of angles and mounted on a stand, a graduated radial arm pivoted at the centre of this scale, and means for projecting vertically any point of this arm on to an horizontal diametral graduated bracing of the circular frame. In one form, these means comprise a plumb-line hanging from a pin on the radial arm or on the upper part of the circular frame in the case of angles in the third and fourth quadrants. In a second form, shown in the Figure, these means comprise a graduated strip 6 of wood, celluloid, &c., pivoted at 9 to a slide 7 on the radial arm 5 and hanging vertically downwards under the action of its own weight in the case of angles in the first and second quadrants, and vertically upwards under the action of a counterweight attached to the end 8 of the strip 6 in the case of angles in the third and fourth quadrants, the edge of the scale on the strip 6 preferably lying in a vertical line through the pivot 9. To ensure accuracy in reading the position of the strip on the horizontal bracing 3, the scale on this bracing may be mounted on a mirror to eliminate errors of parallax, and the strip 6 may be made of transparent material, or the edge of the scale on the strip 6 may coincide with the edge of the strip or of a slot in the strip or with a wire stretched along such slot. To demonstrate sines and cosines, the distance between the pivot 9 and the centre of the circular scale mav be made equal to the radius of this scale, which is preferably ten divisions of the straight scales. To facilitate the demonstration of tangents and secants, and of cotangents and cosecants using complemental angles, the radial arm 5 may be provided with a graduated extension, a longer vertical strip then being pivoted to a pin sliding in a slot in this extension so that the edge of the scale on the vertical strip may be made to coincide with the end of the horizontal bracing 3. The longer strip may also be held horizontally so as to pass through the ends of the vertical diameter of the circular scale.
Patent GB-686796-A (GB)
Title: Improvements in or relating to electric lighting units and signs
IPC: H02J9/02
Filed: 1950-07-06
Abstract: 686,796. Signs. DUNCAN, P. A. May 1, 1951 [July 6, 1950]. No. 16952/50. Class 3 (ii). [Also in Group XXXV]. A sign comprises a casing housing one or more primary lamps 7 for one operation from supply mains 8 and one or more low voltage secondary lamps 13, the latter being supplied from a. standby battery 6 upon failure of the primary lamp or the mains supply by de-energization of a relay 10 having contacts 15, 15c in the battery circuit and the coil of which is normally energized by the voltdrop across a series resistor 9 in the primary lamp circuit. If continuous energization of the secondary lamps is required, these may normally be supplied from the mains over a step-down transformer 14 and a further contact 15b of the relay. The battery and associated control mechanism may be within the casing or separate therefrom-The casing may comprise a conical reflector with the secondary lamps arranged around its periphery and a single primary lamp at its centre. In another arrangement all the lamps are disposed in a troughshaped reflector. In the box sign shown in Fig. 1 an angle-section strip 3 secured within the box 1 carries the lamps, battery and associated control apparatus. The matter to be displayed is stencilled on or cut out from a removable front panel 2 of the box.
Patent GB-672793-A (GB)
Title: Magnetic recorder
Inventor: SCHROTER EDWARD
IPC: G11B15/22
Filed: 1949-06-27
Abstract: 672,793. Magnetic recording and reproducing apparatus. GRACE ELECTRONICS, Inc. June 27, 1949. No. 17022/49. Class 40 (ii). In a magnetic recorder having feeder and receiver turntables adapted to receive reels containing a recording tape which moves from one to the other past an erasing magnet, a magnetic head, and a driving capstan, there are provided means normally braking the turntables, means for selectively rotating the turntables, and a control lever connected to the braking means and the rotating means, and operable to release the braking means and drive either turntable. Tape reel 21, on which the unused tape is initially rolled, has a positive driving connection with a turntable 42. The tape passes a guide pulley 23, erasing head 24, recording head 25 and coacting operating pad 30, a drive capstan 27 and a pulley 31 for pressing the tape on to the capstan, and is then fixed to a reel 22 frictionally coupled to a turntable 43. A motor drives capstan 27 and, through a belt 54, a drive wheel 51 mounted on a plate 45 pivoted towards its upper end. The lower end of plate 45 is connected by a spring 80 and rod 19 to a control lever 76 pivoted at 77. Thus when the lower end of lever 76 is moved to right or left the plate 45 moves likewise, and drive wheel 51 engages turntable 42 or 43 respectively. At the same time a pin 58 on plate 45 engages the sloping ends of notches 64, 65 in levers 59, 60 to release brakes 70, 71. For recording or reproducing, lever 76 is moved to the left, to drive turntable 43. Also a pin 85 on lever 76 is moved away to allow a spring 84 to urge roller 31 towards the drive capstan 27. The tape then runs from reel 21 on to reel 22. When reproducing, switch 16 is moved to remove the erasing head 24 from the tape. To rewind the tape, lever 76 is moved to the right causing drum 42 to be driven at high speed. Also pin 85 withdraws the pulley 31, and a pin 93 on plate 45 engages a spring 92 and causes withdrawal of the operating pad 30. A link 109 causes removal of the erasing head 24. The control lever 76 is locked in its right and left positions by the engagement of spring- urged dogs 96, 97 engaging an aperture 95, the dogs being released by the inner end of a catch 98 pivoted on the end of lever 76.
Patent GB-569310-A (GB)
Title: Improvements in pivotal bearings for levers
IPC: F16C25/00
Filed: 1943-10-18
Abstract: 569,310. Pivot pins. GASKELL & CHAMBERS, Ltd., and WEIGHTMAN, J. S. Oct. 18, 1943, No. 17049. [Class 65 (ii)] [Also in Group XXXIV] In a pivotal bearing for a lever, one or both pivot pins and their sockets are plain and unthreaded, the pins being adjusted by an axial sliding movement and being then locked in adjusted position. Each pin 18 has a conical end 19 or a recess 21 for a ball 20, the lever 10 having a hollow bush 23 with end recesses 22. One pin may be fixed by a pin 26 but one must be adjustable. This latter pin may be locked by a radial set screw 17 or may be actuated and locked by a screw 27 parallel to the axis of the pin, this screw having a flanged head 28 engaging the stepped end 29 of the pin
Patent GB-1537360-A (GB)
Title: Sterilising machines
IPC: A23L3/00
Filed: 1976-04-28
Abstract: 1537360 Endless conveyers MATHER & PLATT Ltd 15 April 1977 [28 April 1976] 17167/76 Heading B8A A carrier 15 for attachment to endless conveying chains of a sterilizing apparatus comprises a bar having a cross-section composed of three generally fork-shaped parts 16, 17 and 18. The upper limbs of forks 17, 18 are preferably curved upwardly and the lower limbs downwardly. The spacing of the carriers on the chains is selected so that articles cannot pass between adjacent bars except at discharge and loading stations C where they are flexed open sufficiently.
Patent GB-982595-A (GB)
Title: A tubular section for pit props
IPC: E21D15/502
Filed: 1962-05-04
Abstract: 982,595. Telescopic pit props. RHEINSTAHL WANHEIM G.m.b.H. May 4, 1962 [May 5, 1961], No. 17203/62. Heading E1E. The inner tubular section of a telescopic pit prop is provided with clamping surfaces 1, 2 which are separated by a nose 7 and are adapted to be frictionally engaged by an adjustable clamp. The bearing surfaces are so disposed that the clamping forces developed by the clamp act tangentially thereon as indicated by the arrows K. The surfaces 7a of the nose may act as bearing surfaces and may extend parallel to the plane 1, of symmetry 8. In a modification, Fig. 2, (not shown), the bearing surfaces of the nose have a rounded profile whilst the bore of the section deviates from the circular in the region thereof. The section may be made by an extrusion process or consist of two like parts welded together.
Patent GB-318323-A (GB)
Title: Improvements in and relating to picture and like frames
IPC: A47G1/14
Filed: 1928-06-14
Abstract: 318,323. Rich, H. C. June 14, 1928. Card stands.-A hinged back strut is attached to the removable back of a picture &c. frame by a hinge pintle a<1> attached to one part b engaged by endwise movement with a hinge socket c secured to the other part d. The pintle is spaced from part b by a radial web a<2>, the socket being provided with a slot c<1> to permit turning movement of the pintle when inserted in the socket, the slot being of reduced width at one end c<2> to permit the passage of the web a<2> in one angular position only of the pintle. The socket is attached to the part d by end lugs c<3> passed through the part and bent over. Two sockets at right-angles may be provided to permit the frame being supported with either its long or short sides horizontal. The back of the frame is removably secured to the frame by rotatable L-shaped stems screwed into the frame.
Patent GB-1330450-A (GB)
Title: Electrophotographic copying process
IPC: G03G15/05
Filed: 1970-04-10
Abstract: 1330450 Electro-photographic processes ITEK CORP 19 Aug 1970 [3 Sept 1969] 17282/73 Divided out of 1328374 Heading G2H In an electro-photographic process comprising exposing a copy medium to an image, electrostatically charging the medium and developing a visible image on the medium, the medium comprises a support with an organic photo-sensitive material which undergoes an irreversible chemical change under actinic radiation to permanently alter its conductivity, the material comprising (a) an aryl substituted pyrylium salt of formula (b) a triphenyl-methane dye of formula or (c) a phenyl substituted inderone oxide of formula In the formulae, a is from 0 to the number of replacable hydrogen atoms on the aryl nucleus; Y is a substituent radical preferably alkyl, alkoxy, amino, nitro or halo; A in an anionic function; M is or Z is an ethylenically unsaturated aliphatic chain of 2 to 4 carbon atoms and X is the anion of an acid such as HCN, HC1, HBr, HI, or HSCN. In an example baryta paper is coated with 2, 4, 6-triphenylpyrylium 3-oxide and a resin. Many resins, supports and examples of compounds of formulae I to III are given. Multiple copies may be taken from the exposed medium by repeating the charging and developing steps.
Patent GB-1390827-A (GB)
Title: Separation process for solid material
IPC: B03D3/02
Filed: 1972-04-14
Abstract: 1390827 Separation by selective agglomeration SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 14 April 1972 17303/72 Heading B2H [Also in Division C5] In a process for the separation of solids from contaminating material by selective agglomeration with a binding agent from a suspension of the finely divided solids mixture in a liquid, the suspension and binding agent are passed through a first zone under conditions of turbulent flow, the formed agglomerates separated from the remaining suspension of contaminating material, and the agglomerates together with clean liquid passed through a second zone under conditions of turbulent flow. Further agglomeration zones may be provided, it being preferred to grind the agglomerates obtained from one zone before passing them to the next zone. Extra binding agent may be added to the second and subsequent zones. Examples describe the treatment of mixtures of cake and ash using as a binding agent bunker C oil and a mixture of propane bitumen and gasoline respectively.
Patent GB-715569-A (GB)
Title: Improvements in and relating to methods of making armatures for dynamo-electric machines
IPC: H01R39/32
Filed: 1952-07-09
Abstract: A flux bath having an amine hydrochloride as its active agent, into which a commutator and its lead are immersed prior to immersion in a solder bath, preferably comprises a solution of 32 per cent. diethylamine hydrochloride in water.  The solder may comprise 2.5 per cent. silver, and 97.5 per cent. lead or 1.5 per cent. silver, 1 per cent. tin and 97.5 per cent. lead.
Patent GB-1131640-A (GB)
Title: Process for preparing hexadienes
IPC: B01J31/24
Filed: 1966-04-20
Abstract: 1,131,640. Hexadienes. TOYO RAYON K.K. 20 April, 1966 [22-April, 1965; 4 Sept., 1965; 19 Nov., 1965], No. 17361/66. Heading C5E. Hexadienes are obtained by codimerizing an alpha-olefin with a conjugated di-olefin in the presence of a two-component catalyst comprising (1) a cobalt compound COH[R 2 P-(-R<SP>1</SP>-) n -PR 2 ] m  wherein R is alkyl or aryl, R<SP>1</SP> is alkylene, alkenylene or arylene, n is 0 or 1, and m is 1 or 2, and (2) one of the compounds (a) R<SP>2</SP> p AlX 3-p , wherein R<SP>2</SP> is monovalent hydrocarbon, X is H or halogen, and p is 1, 2 or 3; (b) R<SP>3</SP>OH wherein R<SP>3</SP> is alkyl, cycloalkyl, aryl or substituted aryl; or (c) a Friedel-Crafts catalyst. The α-olefin may be ethylene or propylene (preferred), butene-1, pentene-1, hexene-1 or heptene-1, and the diene a 1,3-butadiene, or a C 1 -C 20  alkyl- or aryl-substituted 1,3-butadiene, particularly isoprene. Preferred cobalt compounds (1) are CoH[(C 6 H 5 ) 2 P(CH 2 ) 2 P(C 6  H 5 ) 2 )] 2  and CoH[(C 6 H 5 ) 2 P(CH 2 ) 3 P(C 6 H 5 ) 2 ] 2  used in an amount 10<SP>-5</SP>-10<SP>-1</SP> mol./mol. diene, and in a ratio to 2(a), (b) or (c) of 1-100 : 1, 10-200 : 1 and 0À1-50 : 1 respectively. The Friedel-Crafts catalyst (c) may be AlCl 3 , SnCl 4 , ZrCl 4 , WCl 6 , BF 3 (OEt) 2 , TiCl 4 , or Al 2 Br 6 . Reaction is effected at 20-250‹ C., and atmospheric to 300 kg./sq. cm. pressure, optionally in the presence of a hydrocarbon or halogenated hydrocarbon solvent.