baber/WOPTO huggingface dataset:
Patent GB-1483809-A (GB)
Title: Gated current source circuit
IPC: G05F3/22
Filed: 1974-12-18
Abstract: 1483809 Transistor switching circuits INTERNATIONAL BUSINESS MACHINES CORP 18 Dec 1974 [2 Jan 1974] 54608/74 Heading H3T A gated constant current generator comprises one or more current sinks 30-36 controlled by a regulated voltage on the base of transistor 16. During build-up of the gating pulse applied at 14, diode 20 is back biased and all the current through resistor 12 goes to build-up the current in transistors 10 and 16 but when the base voltage of transistor 16 nears its regulated value, diode 20 starts to conduct, completing a lowimpedance feed back path to keep the base voltage constant.
Patent GB-1219230-A (GB)
Title: Improvements in tape printer device
Inventor: MASON FREDERICK PERCIVAL
IPC: H04L13/06
Filed: 1969-11-07
Abstract: 1,219,230. Selective printing. CREED & CO. Ltd. 7 Nov., 1969, No. 54693/69. Heading B6F. [Also in Division G5] In a device for displaying printed tape from a tape printer in page-like form, the tape is passed around pairs of rollers 21a, 22a &c., spaced apart by at least the length of a line of print so that a printed message is visible on parallel lengths of tape on one side of the rollers, the parallel lengths being connected on the other side of the rollers by parallel interconnecting lengths of blank tape. In operation, a spring biased roller 7 carried in a stirrup 6 withdraws the tape from the print head 8 as each character is printed. With a " carriage-return " signal and the release of nip rollers 3, 4, the tape is drawn out to a full line length by roller 7. As the result of a " line-feed " signal, a looping roller 11 withdraws sufficient tape to form an interconnecting blank length. With the commencement of a fresh line of printing, feed rollers 23, 24 are driven so that each displayed line of print is moved to the position formerly occupied by the one preceding it, the top line being discarded and the newly-printed line becoming the bottom line. The control of rollers 23, 24 utilizes a photo-electric device (not illustrated) detecting marks on the printed tape. The display apparatus is suitable for a tape teleprinter using, for example, an electrostatic head, but is also suitable for use with printing of a temporary nature such as xerographic or ferrographic printing in which the fixing of the print is omitted. An endless band of tape may be used, the discarded print being cleaned off the tape.
Patent GB-1394020-A (GB)
Title: Constructional toy element
IPC: A63H33/06
Filed: 1973-11-29
Abstract: 1394020 Constructional Toy Element S SUTER 29 Nov 1973 [16 Dec 1972] 55484/73 Heading A6S A constructional toy element consists of a generally triangular flat plate 1 having slits 2 extending from the mid-point 3 of each side and from each vertex towards the centre of the plate. Each slit has a length shorter than five times the thickness of the plate, a width substantially equal to the plate thickness and a contour which allows mutual insertion into and engagement with a slit of another such plate and disengagement of the interlocked plates. The portion of the slit nearer the centre of the plate may have a narrowing taper 4 (Fig 2). A constructional toy set may comprise a plurality of the triangular elements and a plurality of rectangular auxiliary elements provided with slots 6 for use in connecting the triangular elements. The constructional elements may be made from a tough thermoplastic material.
Patent GB-1374878-A (GB)
Title: Vacuum induction ovens
IPC: H05B6/26
Filed: 1972-12-04
Abstract: 1374878 Induction furnace BALZERS PATENT- & BETEILIGUNGS-AG 4 Dec 1972 [24 Dec 1971] 55907/72 Heading H5H To reduce eddy current heating in the radiation screening plates 4 surrounding the usuable space of a vacuum induction oven the plates 4 are fixed to a first surrounding longitudinally slitted cylindrical sleeve, 6 and the sleeve 6 is surrounded by a further longitudinally slitted sleeve 8, the margins 9, 10 and 11, 12 of the top slits of the sleeves 6 and 8 being connected together. As shown, four bundles of three arcuate screening plates 4 are each secured to sleeve 6 by a pair of vertically spaced metal pins 5 and the plates of each bundle are angularly off-set so that the radiation screening is uninterrupted. The sleeve 8 rests on a base-plate (not shown) and supports the inner sleeve 6, which is shorter, by means of the marginal connections. The sleeve 8 is surrounded by induction coil 3 which is supported by a carrier 2 mounted on the base-plate. A container 13 for work has an observation hole in its upper surface and supports thereon a further bundle of screening plates also provided with an observation hole. Further screening plates are mounted beneath the container. All components of the screening arrangement consist of metal, e.g. tungsten or molybdenum.
Patent GB-1327066-A (GB)
Title: Phase shifting circuits
IPC: D04B15/66
Filed: 1970-11-25
Abstract: 1327066 Knitting machines EDOUARD DUBIED ET CIE SA 25 Nov 1970 [28 Jan 1970] 55999/70 Heading D1C A knitting machine with electro magnetic needle selectors operable in accordance with the variable phase output pulses produced by a pulse phase shifting circuit 3 from a pulse generator dependent on the machine speed, the phase shift being a function of the frequency of the latter has a logic system which directs low frequencies direct (line 6) to a change over and shaping logical system 5 and the higher frequencies via a delay circuit 7, first integrator 9 and Schmitt trigger to the system 5, the change over being controlled by a tachometer circuit comprising a second Schmitt trigger and controlled by a second integrator 14. Pulses from system 5 control the orders to the electromagnets from a source 20. e.g. a programme reader, data processing unit or the like.
Patent GB-1219402-A (GB)
Title: Marking device
Inventor: MCNEILL DAVID PETER
IPC: B41J9/06
Filed: 1966-12-16
Abstract: 1,219,402. Selective embossing. GABRIEL MFG. CO. Ltd. 6 March, 1968 [16 Dec., 1966], No. 56389/66. Heading B6F. Apparatus for embossing selected characters in metal objects comprises a frame 1 carrying a reciprocable hammer head 5 and a turnable head 6, the head 6 permanently or detachably carrying angularly spaced dies 17 each provided with an embossing character die, and actuating means operative to force the hammer head into striking engagement with the selected die 17. Hammer impression; pneumatic impression mechanism.-The hammer head 5 is carried by a piston-rod 13 which is attached to a piston 12 reciprocable within a cylinder 11 attached to the frame 1. Downward motion of the piston 12 may be effected by compressed air admitted to the cylinder 11 through a manually-controlled solenoid-actuated valve 19. In a modification (Fig. 3, not shown) a solenoid (34) arranged within the cylinder 11 and energized briefly by " one shot " means (38) may force the hammer downwardly. The hammer is returned to its inoperative position by a spring 14, (39). Type-wheel machines; index-setting.-The dies 17 may be carried on a frusto-conical member 9 or axially on a disc (29), Fig. 2 (not shown), which may be of rubber or of metal, may be resilient and have fixed dies or non-resilient and have dies movable relative to the carrier. The die carrier may have indicia on its outer periphery. A projection (33) may be formed on the frame to co-operate with recesses (31) in the die carrier for alignment for impression.
Patent GB-1237715-A (GB)
Title: Improvements in testing apparatus
IPC: A24C5/34
Filed: 1968-11-27
Abstract: 1,237,715. Testing cigarettes. MOLINS MACHINE CO. Ltd., G. F. W. POWELL and E. S. DOERMAN. 27 Nov., 1969 [27 Nov., 1968], No. 56402/68. Heading A2C. An apparatus of the type in which a cigarette is tested for leaks in its wrapper by placing the cigarette in a chamber in which an air pressure different from atmospheric is maintained and the pressure in the wrapping is monitored to detect pressure variations corresponding to faults in the wrapper, comprises two separate means for connection to the ends of an article in the testing chamber and a separate path from each of said means leading to a common point, in which each of said separate paths is connected to the common point through a unidirectional device so that fault signals appearing at either end of the article cause a fault signal to appear at the common point without any substantial reverse passage of signals from the common point into either path. In one embodiment, pressure variations in caps connected to each end of a cigarette are separately applied to two transducers, one associated with each cap, and the electrical output from each transducer is applied through separate diodes to the common point. In a second embodiment, the pressure variations are applied via one-way air valves to a common point at the input side of a single transducer.
Patent GB-1279887-A (GB)
Title: Catalyst system and a process for preparing organic isocyanates using same
IPC: C07B61/00
Filed: 1969-11-21
Abstract: 1279887 Catalyst system OLIN CORP 21 Nov 1969 [21 Nov 1968] 57069/69 Addition to 1245480 Heading B1E [Also in Division C2] A catalyst system comprises either 1(a) at least one heteroaromatic compound having 5 or 6 members in the ring, only nitrogen and carbon in the ring, no more than two nitrogen atoms in the ring and at least two double bonds in the ring, or a derivative of such a compound, (b) at least one noble metal halide or oxide, and (c) at least one halide of a non- noble metal from groups IVa, Va, VIa, VIIa, IIb, IVb and Vb; or 2- a complex of a compound of (a) with a halide of (b) and at least one halide of (c); or 3- a complex of a halide of (b) with a halide of (c) and at least one compound of (a). Many particular aromatic compounds, noble metal halides and non-noble metal halides are specified. Specified noble metals are ruthenium, rhodium, palladium, osmium, iridium, platinium, silver and gold and specified non-noble metals are titanium, zirconium, vanadium, tantalum, chromium, manganese, iron, zinc, mercury, germanium, tin, lead, arsenic, antimony and bismuth. The catalyst system may also contain one or more oxides of metals of groups Va and VIa. The preferred ratio of the aromatic compound to the anion of the noble metal halide and the preferred ratio of the aromatic compound to the anion of the non-noble metal halide is between 0.01:1 and 10:1. The catalyst may be self-supported or deposited on a carrier, those specified being alumina, silica, carbon, barium sulphate, calcium carbonate, asbestos, benitonite, diatomaceous earth and fullers earth. Examples describe (a) Pd Cl 2  with isoquinoline and one of SnCl 4 , GeCl 4 , FeCl 3 , ZrCl 4 , SnCl 2 , SbCl 3 , BiCl 3 , HgCl 2 , ZnCl 2 , PbCl 2 , VCl 3 , TaCl 3 , CrCl 3 , MnCl 2 , MoCl 4 ; (b) PdCl 2  with pyridine and GeCl 4 ; (c) PdCl 4  with pyridine and GeCl 4  or isoquinoline. and SnCl 4 ; (d) RhCl 3  with pyridine and SnCl 2  or isoquinoline and BiCl 3  or CrCl 3 ; (e) PdZnCl 4  with isoquinoline, PdSnCl 4  with 7,8-Benzoquinoline and PdBiCl with 4-phenylyridine.
Patent GB-1244990-A (GB)
Title: Cyclodextrin derivatives
Inventor: WIEDENHOF NIELS
IPC: C08B37/16
Filed: 1968-12-03
Abstract: 1,244,990. Cyclodextrin derivatives. COOPERATIEVE VERKOOP - EN PRODUCTIEVERENIGING VAN AARDAPPELMEEL EN DERIVATEN AVEBE G.A. 3 Dec., 1969 [3 Dec., 1968], No. 57428/68. Heading C3V. A process for preparing a cyclodextrin derivative comprises reacting a cyclodextrin, or mixture of cyclodextrins, with a polyfunctional compound (as defined), in the presence of a substantially non-polar solvent for the polyfunctional compound and a polar solvent for the cyclodextrin or mixture of cyclodextrins, the two solvents being immiscible or substantially immiscible whereby the reaction mixture has two separate solvent phases, and recovering the product. Suitable polyfunctional compounds specified are epichlorohydrin, formaldehyde, diepoxybutane and phosphoroxy chloride. If the reaction conditions are such that the hydroxyl groups of the cyclodextrin may be oxidized, a reducing agent such as sodium borohydride may be included in the reaction mixture.' If the reaction is carried out in a solvent mixture in which the polar solvent is present as small droplets dispersed in the non-polar solvent, the product may be obtained in the form of beads.
Patent GB-1405890-A (GB)
Title: Vacuum advance mechanism
IPC: B21D43/18
Filed: 1971-12-11
Abstract: 1405890 Jointing LUCAS ELECTRICAL CO Ltd 1 Dec 1972 [11 Dec 1971] 57667/71 Heading B3V A joint between the diaphragm casing 1 and a distributor bracket 4 of a vacuum-advance mechanism comprises a sleeve 2 on the casing 1 having a portion 6 extending through an aperture 5 in the bracket and turned outwardly to trap the bracket against a shoulder 3 on the sleeve, and a protuberance 9 on the shoulder engaging a slot 7 in the bracket. The outwardly turned portion of the sleeve may be formed with one or more protuberances engaging slots (8), Fig. 1 (not shown), on the bracket. The joint is made by inserting an anvil having a protuberance into the sleeve 2 and then forming the outwardly turned portions by a rolling operation which also forms the protuberances on the flange as the protuberance 9 is formed.
Patent GB-1331829-A (GB)
Title: Oxymethylene polymer-glass fibre compositions
IPC: C08K9/06
Filed: 1971-12-15
Abstract: 1331829 Oxymethylene polymer-glass reinforcement compositions CELANESE CORP 15 Dec 1971 [22 Dec 1970] 58156/71 Heading C3P A composition comprises (a) an oxymethylene polymer, (b) a compound containing at least two isocyanato and/or isothiocyanato groups, and (c) a glass reinforcing agent, e.g. fibres, coated with a condensation product of an aminoalkylsilane and an organic polymer or polymerforming material containing at least one functional group reactive with the silane and being an epoxide, carboxyl, aldehyde, anhydride or olefinic group. In the example, a trioxanethylene oxide copolymer is mixed with 4,4<SP>1</SP>- diisocyanato diphenyl methane and glass fibres coated with the condensate of the diglycidyl ether of tetramethylene glycol with gammaaminopropyl triethoxysilane or in a comparative experiment with polyvinyl acetate.
Patent GB-1165360-A (GB)
Title: Improvements relating to Aircraft Engine Vortex Inhibitors
Inventor: DAVIDSON IVOR MACAULAY
IPC: F02C7/05
Filed: 1966-12-30
Abstract: 1,165,360. Boundary layer control. MINISTER OF TECHNOLOGY. 29 Nov., 1967 [30 Dec., 1966], No. 58283/66. Heading F2R. [Also in Division F1] To reduce the risk of ingesting debris from a ground surface 6 drawn upwardly by a vortex 5 into the air intake of a gas turbine engine mounted by a pylon 3 on an aircraft wing 2 provision is made to prevent the formation of the vortex by mounting on the lower face of the engine casing a tube 7, which is axially slotted at 8, 9, 10 and 11 so that air tapped from the compressor 12 and delivered through a conduit 13 will generate circulation round the tube to entrain the vortex, Two side.byside vortex inhibitors may be provided and arrangements are described for retracting the tubes into the engine casing.
Patent GB-1255790-A (GB)
Title: Improvements in or relating to the production of soft packagings
IPC: B31B50/00
Filed: 1968-12-10
Abstract: 1,255,790. Making bags. ROVEMA VERPACKUNGSMASCHINEN G.m.b.H. & CO. 10 Dec., 1968 [11 Dec., 1967], No. 58585/68. Heading B5D. [Also in Division B8] Bags are made by wrapping material around a mandrel on a machine providing a multiplicity of mandrels arranged on an intermittentlydriven mandrel wheel 16, the axis of the mandrel being parallel to that of the mandrel wheel. The wheel is provided with hollow mandrels 18 of rectangular section, suction being applied within each mandrel to hold the end of a sheet or strip 32 thereagainst while the mandrel is rotated to wrap the strip therearound. The strip is carried on rolls 30 and passes around a tensioning device 34, 36, 38, 40, 42 before passing to suction holders 52, 54 and a severing device 78. A suction device 58 more powerful than the holders at 52, 54 seizes the end of the strip and moves it forward to engage a corner 80 of the mandrel while the device 78 cuts the strip. The wheel then indexes one step and the mandrel rotates through 180 degrees to complete the wrapping. At other stations the bag is filled and sealed by devices not described in detail. Containers (114, Fig. 2, not shown) for the bags are mounted on a disc (112) below the mandrels and a vibrating disc (116) is also provided. As shown the mandrels are duplicated at each station.
Patent GB-1285983-A (GB)
Title: Dyeing process
Inventor: CORBISHLEY GEORGE SAMUEL ANTHO
IPC: D06P3/52
Filed: 1969-10-25
Abstract: 1285983 Dyeing synthetic materials CIBAGEIGY (UK) Ltd 26 Oct 1970 [25 Oct 1969 3 Dec 1969] 52379/69 and 58923/69 Heading D1B Synthetic textile materials capable of being dyed with cationic dyes are dyed with aqueous solutions of cationic dyes which contain a compound of formula in which R is phenyl or chlorosubstituted phenyl group, n is an integer 1 to 3, X is hydrogen or a methyl group optionally in presence of water soluble alcohols or lower ketones containing up to 6 carbon atoms e.g. isopropyl alcohol and methyl ethyl ketone. Fibres treated are polyacrylonitrile or copolymers thereof containing at least 80% acryonitrile, acid modified polyamide, polyurethane, polypropylene fibres and polyester fibres, carpets and needle felt being specified forms thereof. Compounds of the above formula are phenoxyethanol and those derived from one mole of ethylene oxide with one mole of mono- or di-chlorophenol, continuous dyeing and printing processes being specified. The compounds preferably being 1- 5% by volume of the aqueous solution.
Patent GB-1248002-A (GB)
Title: Paper roll holder device
IPC: B65H35/00
Filed: 1969-12-03
Abstract: 1,248,002. Paper roll dispenser. CARRARA & MATTA S.p.A. Dec.3, 1969 [Jan. 17, 1969], No. 59049/ 69. Heading A4G. The dispenser comprises a plastics box 1 open at the rear and closed at sides 3 and at top and front 2 with a front slot 5 and serrated tearing edge 6 for paper 21 pulled from roll 22, the sides carrying projections 9 and pivots 8. The dispenser is secured to a wall 20 by a plastics support 11 having vertical elongated sockets 14 retaining the pivots 8 and hooks 18 engaging projections 9. The socket permits the projection to lift out of the hook and the box to swing forward and down for access to the interior.
Patent GB-1218475-A (GB)
Title: Device for the selective positioning of data carriers in processing or reading stations
Inventor: BAYER PETER
IPC: G06K13/077
Filed: 1968-12-13
Abstract: 1,218,475. Feeding sheets. ELEKTRONISCHE RECHENMASCHINEN - WISSENSCHAFTLICHER INDUSTRIEBETRIEBKARL - MARX - STADT VEB. 13 Dec., 1968, No. 59510/68. Heading B8R. Data carriers are selectively halted at one of a plurality of positions in a reading, punching, or printing station by pivoted flaps co-operating with abutments in a rail adjacent the feed path. Fig. 3 illustrates a data-carrier 1, being fed along path 3 3 by feed rollers (not shown) to a perforating station where flaps 7-13 co-operate with abutments 6 on a rail 16, the spacing between abutments corresponding to the spacing between rows or columns of data on the carrier 1. The rail 16 forms an armature of electromagnet 15 which is energized at the required moment, in this case when the carrier has already passed freely-pivoting flaps 7 and 8, to lock the remaining flaps. Two such devices may be arranged side-by-side, but offset (Fig. 4, not shown), to decrease the effective spacing between flaps. At least part of the rail may be pivotable out of the area of engagement with the flaps by means of hydraulic or pneumatic devices, springs, eccentrics, electromagnets, electric motors, or magnetostrictive or electrostrictive transmitters (Figs. 7-16, not shown), or normally with damping means for the pivoting motion.
Patent GB-1451242-A (GB)
Title: Stylus mounting for belt-type facsimile recorder
IPC: H04N1/14
Filed: 1973-12-21
Abstract: 1451242 Selective printing MUIRHEAD Inc 21 Dec 1973 [5 Feb 1973] 59546/73 Heading B6F [Also in Division H4] A stylus mounting 3 carrying a stylus 9 for use in a facsimile recorder of the kind disclosed in Specification 1,451,241 includes a base member 20, side portions 21, 22 and a pin member 24 engaging at least one of the portions 21, 22. The mounting 3 is intended to fit on to a continuous toothed belt, the portions 21, 22 overlying the edges of the belt and the pin 24 fitting between adjacent teeth. As shown in Fig. 2 a second pin member 25 having portions 26, 27 permits the mounting to abut both sides of a given tooth on the belt and such a mounting can be used to join up a length of belt to make it endless. The holding of the stylus 9 in the mounting is the subject of Specification 1,451,243.
Patent GB-1216939-A (GB)
Title: Laterally flexible flat top conveyor with metal u-shaped guide contacting members welded to the bottom of the links
IPC: B65G17/08
Filed: 1968-12-16
Abstract: 1,216,939. Endless conveyers. REX CHAINBELT Inc. 16 Dec., 1968 [18 Dec., 1967], No. 59705/68. Heading ,B8A. In a laterally-flexible flat-top conveyer comprising a chain of pivotally-connected flat-top metal links 16 with guide-contacting means 32, 34, below the top surface thereof and a stationary member 28, 30, for guiding the conveyer in a curved path while retaining it in a horizontal plane, which member presents an inclined surface 29, 31, the guide-contacting means are in the form of a U-shaped metal member 32, 34 rigidly secured to the bottom of each link by a weld 36, spaced from the pivotal connection of the link 16, with the bottom of the U forming a guide surface generally parallel to, and outwardly of the longitudinal axis of the conveyer and also at an acute angle to the bottom surface of the link, while the legs 44, 46 of the U-shaped member 32, 34 extend toward the longitudinal axis of the conveyer.
Patent GB-1202790-A (GB)
Title: Improvements in or relating to the production of thin layers of semiconductor material
IPC: H01L21/00
Filed: 1968-12-23
Abstract: 1,202,790. Depositing silicon. SIEMENS A.G. 23 Dec., 1968 [27 Dec., 1967], No. 61024/68. Heading C1A. [Also in Division H1] A semi-conductor layer comprising side-byside zones of different conductivity and/or conductivity type is formed by etching recesses in one face of a semi-conductor wafer of one conductivity type, selectively depositing material of different conductivity or conductivity type to fill the recesses and then disposing the wafer adjacent a monocrystalline substrate and effecting a chemical transport reaction to transfer material from the treated wafer to the substrate. Typically the wafer is of 1 ohm cm. boron-doped silicon with lightly phosphorus or arsenic doped silicon filling the recesses. After filling the recesses the treated face is ground so as to remove any residues of the oxide etching and deposition mask and render it flat but rough. The substrate is placed direct or through the intermediary of a spacer on the roughened face and heated from below to 1200‹ C. in a flow of silicon tetrachloride and hydrogen to transfer the surface material to the substrate substantially unaltered. With recesses of sufficient depth the same wafer may serve to coat several substrates. Spaced source and drain regions are diffused into adjacent N and P zones of the resulting layer and gate insulation and electrodes provided to form complementary IGFET's which can be series connected by vapour deposited tracks to provide a storage cell. It is stated that the technique can also be used to form gallium arsenide devices.