baber/WOPTO huggingface dataset:
Patent GB-712865-A (GB)
Title: Improvements in and relating to a gravure printing method and apparatus therefor
IPC: H05K3/12
Filed: 1952-03-17
Abstract: 712,865. Printing-surfaces; intaglio printing. BRITISH THOMSON-HOUSTON CO., Ltd. March 17, 1952 [March 15, 1951], No. 6837/52. Class 100 (2) Apparatus for applying printed lines on to paper or other material 4 comprises an intaglio printing- roller 1 whose printing areas consist of a plurality of continuous open grooves 6 for the reception of the printing liquid 2, substantially all points of the groove being inclined to the roller axis at an angle of from 10-90 degrees, and a doctor blade 3 to remove excess printing liquid from the roller surface. The grooves may zigzag at an inclination of 14 degrees and 2 minutes as shown. The inclination of the grooves prevents the blade 3 from moving into them. The apparatus is particularly applicable for printing electrically conductive lines on to insulating material, for use as described in Specification 690,022, [Group XXXVI], and the continuity of the grooves ensures proper conductivity. The roller 1 rotates in a bath of printing liquid and in contact with an impression roller 5 round which the paper is passed. The grooves may be tapered downwardly, being 0.02 inch across at the top, 0.018 inch at the bottom, 0.008 inch deep, and 12 inches long in an axial direction, each lap of the zigzag being 2 inches long. The printing liquid may be a graphite phenolic resin varnish mixture, such as " Rescon," and when dried and baked, produces a surface resistivity of 1,000 ohms per square.
Patent GB-1240321-A (GB)
Title: Improvements in or relating to building
Inventor: GOODACRE DAVID MEAKIN
IPC: E04B1/34
Filed: 1968-02-12
Abstract: 1,240,321. Multi-storey buildings. D. M. GOODACRE. 10 Feb., 1969 [12 Feb., 1968], No. 6859/68. Heading E1A. In a building of skeleton frame construction 1, 2 having an internal arrangement of ducts 3, certain floor sections 40 are provided for ready removal whereby the internal layout of the building can be readily varied, see Figs. 1B-7 (not shown). The removable sections may be of timber, metal troughing, plastics or frame construction. For dimensions and minor constructional details together with floor layouts and materials employed the Specification should be referred to.
Patent GB-1159055-A (GB)
Title: Process for the preparation of Olefins
Inventor: MCGRATH BRIAN PATRICK
IPC: B01J23/36
Filed: 1967-02-14
Abstract: 1,159,055. Disproportionating olefins. BRITISH PETROLEUM CO. Ltd. 26 Jan., 1968 [14 Feb., 1967], No. 6915/67. Heading C5E. Olefins are prepared by co-disproportionating an initial mixture of an olefin of the formula R(R 1 )C =CR 2 (R 3 ) where R substituents are H, alkyl or aryl groups, with an easily polymerizable tertiary olefin containing the grouping or a secondary olefin containing the grouping wherein Ar is an aromatic radical, in the presence of a catalyst prepared by heating rhenium heptoxide in a stream of carrier gas whereby the Re 2 O 7 , is sublimed on to Al 2 O 3  located downstream of the Re 2 O 7 . The Re 2 O 7  may be heated to 150-700‹ C. using air as a carrier, and after deposition of the Al 2 O 3  the catalyst may be activated by fluidizing it in a stream of dry air at 200-800‹ C. Alternatively the Re 2 O 7  may be generated in situ by thermally decomposing ammonium perborate in the bottom of a vertical tube, and the Re 2 O 7  so formed carried in an ascending stream of dry air into a fluidized bed of pre-heated Al 2 O 3  in the top of the tube. Examples describe the co-disporportionation of an initial mixture of butene-2 and isobutene to give a product containing propylene and 2 methylbutene-2.
Patent GB-856979-A (GB)
Title: Improvements in or relating to wave generation circuits
IPC: H04L27/12
Filed: 1958-03-04
Abstract: 856,979. Frequency shift radio signalling; pulse modulation and multipliying systems; transistor circuits. WESTERN ELECTRIC CO. Inc. March 4, 1958 [March 14, 1957(2)], No. 6928/58. Classes 40(5) and 40(6). Binary date or like D.C. signals are charged to corresponding different frequencies of a bistable circuit 18, 19 whose elements 18, 19 are tripped on and off alternately when the sawtooth voltages produced across capacitors 32, 33 in series with resitors 30, 31 and the D.C. signal sources E1, E2 reach the triggering voltages Ea, Eb of the bi-stable circuit. Provided E1, E2 are the same or of equal voltage, or bear a constant ratio, the bi-stable circuit output frequency is linear with respect to the amplitudes of E1, E2. As shown, the NPN. transistor 18 is switched on when the voltage e, on capacitor 32 reaches, at time to, (Fig. 3C) a triggering valve E2 rendering rectifier 28 conductive and simultaneously transistor 19 and coupled PNP transistor 34 are switched off so that a rectifier 40 in series with the capacitor 32, resistor 36 and voltage source E<SP>11</SP> is opened by the latter and the capacitor 32 charges between the times to and t, from negative source E<SP>11</SP>, finally again blocking rectifier 28. At time t, the rectifier 29 associated with the corresponding sawtooth generating circuit 33, 31, E2 becomes conductive at voltage Eb (Fig. 3 F) so switching in NPN transistor 19 and coupled PNP transistor 34, so that earth potential is applied to the cathode of rectifier 40 to block it, and capacitor 32 again charges positively from signal source E1 until voltage E2 at time t 2  is again reached, the cycle then repeating. The voltages E1, E2 tnus determine the time advancement of the on and off states of transistors 18, 19 and the duty cycle ratio. In a modification (Fig. 4) the rectifiers 40, 41 and resistors 36, 37 of Fig. 2 are omitted and the source E<SP>11</SP> is a positive voltage connected to the emitters of transistors 44, 45, and to the bi-stable circuit by rectifiers 48, 49. reversed in polarity. At time to (Fig. 5C) the transistor 44, which has previously been ON making the voltage on capacitor 32 equal to + E<SP>11</SP>, is switched off and the capacitor 32 discharges to a lower voltage E2 whereupon, at time t 1  the rectifier 48 becomes conductive, so switching off transitor 18, and switching on transistor 19 and coupled PNP transistor 44 so that the voltage on capacitor 32 is restored at time t, to E<SP>11</SP> this again rendering non-conductive the rectifier 48, and switching off transistors 18, 45. The voltage on capacitor 33 then discharges through resistor 31 and source E2 until the rectifier 49 is conductive whereupon, at time t 2 , the transistor 44 is again switched off and the cycle recommences.
Patent GB-875834-A (GB)
Title: Improvements relating to electrical multi-point monitoring circuits
Inventor: KNOWLES ALFRED JOHN
IPC: G08C15/08
Filed: 1958-03-04
Abstract: 875,834. Valve and transistor gating and switching circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 10, 1959 [March 4, 1958], No. 6944/58. Class 40(6) [Also in Group XL(b)] In a circuit for successively connecting the voltage at a plurality of inputs to a common output, a plurality of gating circuits, each fed from a respective input are opened successively by means of a multi-position glow discharge tube and the output of the gating circuits are fed to a common A.C. coupled amplifier. As shown, the outputs of thermocouples are connected via input terminals V1-V5 to transistor gates T1-T5. Each transistor is normally conductive and short circuits the terminals V1-V5 via a resistor. Each transistor is respectively coupled via a capacitor or rectifier to alternate cathodes of a dekatron 1, the beam of which is rotated by means of a 2 kc./s. square wave fed to terminal 2. When the beam reaches cathode A, a positive pulse is fed to the base of T1 cutting off the emitter current and allowing the voltage at terminal V1 to be fed via capacitor Cl and resistor Rl to an amplifier 3. The stepping rate of the dekatron is sufficiently high to allow the D.C. voltage at terminals V1-V5 to be handled by an A.C. coupled amplifier. The output of the common amplifier 3 is fed to the grid of a number of anode bend detectors V1-V3, which are successively opened on the suppressor grid by the positive pulses from the dekatron cathode. The relay connected in the anode circuit of the appropriate valve will be energized whenever the output of the appropriate thermocouple exceeds a predetermined value.
Patent GB-171937-A (GB)
Title: Improvements in or relating to trousers presses
IPC: A47G25/72
Filed: 1921-03-03
Abstract: 171,937. Rossi, P. March 3, 1921. Presses.-A table is oonstructed as shown in Fig. 1 so as to collapse to the form shown in Fig. 2 when serving as a trouser press. The table top has two parts 1 hinged to a central part 2 rigidly supported by a strut 4. Hinged side struts 5, fitted with collapsable stays 6, have pressing surfaces 7 to co-operate with pressing surfaces 7 on the central strut. Clips 9 maintain the press in the closed position.
Patent GB-867839-A (GB)
Title: Improvements in stand-by electric generators
Inventor: COBB GORDON EDWIN
IPC: H02J9/08
Filed: 1957-03-01
Abstract: 867,839. Stand-by supply systems. BLACKSTONE & CO. Ltd. Feb. 28, 1958 [March 1, 1957], No. 6979/57. Class 38 (4). In a stand-by supply system, an A.C. load is normally fed from the A.C. mains through a rectifier and a rotary inverter or motor-alternator set 1-4, the rectifier also feeding a D.C. machine 5 driving a flywheel, which on cessation of the supply temporarily drives the machine 5 as a generator which feeds the inverter. At the same time an engine is started up and is connected to the machine 5 through a clutch 8 after a suitable warming-up period. Automatic voltage regulators 2, 4, 7 ensure that the voltage and frequency of the alternator 3 are maintained sensibly constant. Specification 810,139 is referred to.
Patent GB-926425-A (GB)
Title: Improvements in combined seats and carrying cases
Inventor: SMITH FREDERICK THOMAS
IPC: A45C9/00
Filed: 1961-02-25
Abstract: 926,425. Convertible bags. M.S.P. (LUXI-PRODUCTS) Ltd. Feb. 16, 1962 [Feb. 25, 1961], No. 7004/61. Class 133. [Also in Group XIV] A combination cushion or seat and carrying case includes at least two cushions or seats A secured together by flaps provided on their edges, each having a sliding clasp fastener A 1  dividing a portion of its peripheral wall a 2  for access to its interior and including two sheets of padding material B forming a storage space therebetween. Cushions may be hingedly secured together either detachably by flaps as having press studs a4 or permanently by flaps a5. Handles C are provided. The combination may provide a seat on a mattress.
Patent GB-1084767-A (GB)
Title: Improvements relating to a pulling device for woollen yarn drafting arrangements
IPC: D01H7/92
Filed: 1965-02-18
Abstract: The rotatable yarn guide of Specification 1,024,415 comprises a rod which is bent several times or has a stepped surface affording alternate recesses and projections.
Patent GB-1011643-A (GB)
Title: Improvements in impregnation of porous tools used in the electrolytic erosion of metals
IPC: B22F3/26
Filed: 1964-02-20
Abstract: A porous tool such as to be used as a cathode for the electrolytic erosion of metal is impregnated by supplying a fluid composition which is or can be made to be a good conductor of electricity to one surface of the tool, forcing the composition through the tool by applying a positive pressure to the composition, thereby impregnating the tool with the composition, and collecting for recirculation that portion of the composition which passes completely through the tool. The impregnated tool may then be subjected to a heat treatment comprising gradually raising and then lowering the temperature, to produce an electrically conductive electrolytic tool.  A continuous stream of gas may be supplied to the collected composition both to agitate the composition and force it through the tool.  Thus, a wheel of aluminium oxide or silicon carbide may be impregnated with an ink comprising finely divided silver or silver oxide in a suitable vehicle such as a resinous or ceramic binder and a liquid diluent such as toluene or turpentine.  An apparatus for impregnating porous tools comprises fluid receiving means adapted to support a porous tool and form a closed chamber therewith, a collecting vessel disposed adjacent said receiving means, and a circuit connecting said collecting vessel to said receiving means to circulate a fluid through said porous tool, said circuit including a fluid reservoir, means to transfer fluid from said collecting vessel to said reservoir and from said reservoir to said receiving means, and means to force fluid under positive pressure through the porous tool and into said collecting vessel, for example by supplying a pressurized gas into the fluid in the reservoir.ALSO:A porous tool such as to be used as a cathode for the electrolytic erosion of metal is impregnated by supplying a fluid composition which is or can be made to be a good conductor of electricity to one surface of the tool, forcing the composition through the tool by applying a positive pressure to the composition, thereby impregnating the tool with the composition, and collecting for recirculation that portion of the composition which passes completely through the tool.  The impregnated tool may then be subjected to a heat treatment comprising gradually raising and then lowering the temperature, to produce an electrically conductive electrolytic tool.  A continuous stream of gas may be supplied to the collected composition both to agitate the composition and force it through the tool. Thus, a wheel of aluminium oxide or silicon carbide may be impregnated with an ink comprising finely divided silver or silver oxide in a suitable vehicle such as a resinous or ceramic binder and a liquid diluent such as toluene or turpentine.
Patent GB-178421-A (GB)
Title: Improvements in couplings for machines of the high voltage direct current series system
IPC: H02K7/00
Filed: 1922-03-10
Abstract: 178,421. Belli, C. J., and Soc. Anon. des Ateliers de SÚcheron. April 15, 1921, [Convention date]. Universal joints.-In resilient insulated shaft couplings for use in high-voltage direct-current series systems, a rigid insulating-tube i is bolted to metal rings b secured to rings a, between which and sleeves c secured to the shafts to be coupled are spiral springs g circumferentially arranged between radial projections on the parts a, c. The projections e on the part c have spherical peripheries engaging bronze strips d sliding in the part a, so that the shafts may be out of alignment.
Patent GB-815180-A (GB)
Title: Apparatus for the continuous reaction of solid substances
IPC: C07C51/265
Filed: 1957-03-05
Abstract: An apparatus for the continuous reaction or conversion of solid substances in a heated reaction chamber which is closed to the atmosphere comprises a reaction chamber 4 which is sealed from the air by lock arrangement 3, which may be attached to a drying apparatus 1, and has an endless belt 5 for the treatment of the solid which belt rotates on rollers 6 and 7.  The belt runs over a table-like support 8 shaped that the belt slides thereon and may if desired be set in <PICT:0815180/III/1> oscillation by means of vibrator 8a.  The belt is heated by means of a heating arrangement 9 placed in the reaction chamber or can be heated by the reaction gases or by preheating the material itself.  The table-like support 8 can also be provided with a heating device.  Preferably the heating takes place before the turning point on the roller 7 so that the last section 10 of the table before this roller can be cooled, e.g. by means of water, cooling oils or air.  The caked mass breaks and falls off by reason of the chilling or by stretching the curved belt and is crushed by apparatus 11 and discharged through a system of locks 12.ALSO:<PICT:0815180/IV (b)/1> A process for the conversion of potassium phthalate into potassium terephthalate; isomerization or decarboxylation of salts of cyclic carboxylic acids, e.g. of alkali metal salts or thallium salts of benzoic acid, phthalic acid, isophthalic acid or benzenecarboxylic acids having three or more carboxyl groups and heterocyclic carboxylic acids; conversion of salts of naphthalene-carboxylic acids, e.g. of 2-hydroxynaphthalene-1-carboxylic acid to salts of 2-hydroxynaphthalene-3-carboxylic acid; the conversion of salicylic acid into p-hydroxybenzoic acid and the preparation of hydroxybenzenecarboxylic acids from phenates and carbon dioxide, is carried out in a reaction chamber 4 which is sealed from the air by lock arrangement 3, which may be attached to a drying apparatus 1, and has an endless belt 5 for the treatment of the solid which belt rotates on rollers 6 and 7.  The belt runs over a table-like support 8 shaped that the belt slides thereon and may if desired be set in oscillation by means of vibrator 8a.  The belt is heated by means of a heating arrangement 9 placed in the reaction chamber or can be heated by the reaction gases or by preheating the material itself. The table-like support 8 can also be provided with a heating device. Preferably the heating takes place before the turning point on the roller 7 so that the last section 10 of the table before this roller can be cooled e.g. by means of water, cooling oils or air.  The caked mass breaks and falls off by reason of the chilling or by stretching the curved belt and is crushed by apparatus 11 and discharged through a system of locks 12.
Patent GB-1426415-A (GB)
Title: Groove and knife folding cyclinder type folding apparatus
IPC: B65H45/16
Filed: 1974-02-18
Abstract: 1426415 Rotary folders ALBERT-FRANKENTHAL AG 18 Feb 1974 [28 Feb 1973] 7224/74 Heading B8R In a rotary folder of the groove and knife type having a rotatable cylinder 1, the cylinder periphery is constituted by spring bows 9 mounted on pairs of spindles 4, (4<SP>1</SP>), Fig. 1 (not shown), via holders 8 and levers 5, the spindles being rotatable, during rotation of the cylinder, to adjust the cylinder diameter. Cam levers 10 attached to the ends of the spindles 4, (4<SP>1</SP>) are biased towards, and abut, a stepped cam plate 12 rotatable with the cylinder 1, and relatively thereto about the cylinder axis. The cam plate has a toothed segment 22 engaged by spiral teeth on a spur wheel 20 rotatably fixed on the cylinder, the spur wheel also being in engagement with spiral teeth 21 on a shaft 18 co-axial with the cylinder 1, rotatable therewith, and adjustable axially thereof via a rotary bearing 23, a screw threaded spindle 24 mounted in a fixed frame member 17 and an adjustment handle 25 and locking lever 26, or an adjustment motor. Thus the shaft 18 can be moved axially whilst the cylinder 1 is rotating, thereby rotating the spur wheel 20, the stepped cam plate 12 and the spindles 4, (4<SP>1</SP>) to adjust the radial position of bars 9.
Patent GB-178280-A (GB)
Title: Improvements in hard waste breaking machines
IPC: D01B3/02
Filed: 1921-03-08
Abstract: 178,280. Law, J. March 8, 1921. Feeding openers &c.-Means ars provided to free the feed-rollers of a hard-waste breaking- machine from the drive, to allow of the reversal by hand of any of the pairs to remove any hard foreign substance which is being fed into the machine. The reverse movement of the starting- handle C moves the usual piece A and an attached rod D. This operates through a lever F rod H and a second lever J to move the driving bevel-pinion K along its shaft and throw it out of gear with the bevel pinion L on the feed-roller shaft. The rod H is extended so as to operate the whole series of feed-rollers. The bevelpinion K may be provided with a clutch, one part of which is moved by the lever J.
Patent GB-430485-A (GB)
Title: A process for the manufacture of oils with a low paraffin wax content
IPC: C10G73/06
Filed: 1935-03-08
Abstract: 430,485. Dewaxing oils. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ, 30, Carel van Bylandtlaan, The Hague. March 8, 1935, No. 7348. Convention date, April 25, 1934. [Class 91] In a process for dewaxing mineral oils by adding a diluent, chilling and separating the precipitated wax, the diluent used consists of a mixture of tetrahydronaphthalene and acetone or methyl ethyl ketone. Mineral, tar or shale oils or lubricating distillates may be treated with a mixture of equal parts of acetone and tetrahydronaphthalene.
Patent GB-557569-A (GB)
Title: Improvements in or relating to friction coupling devices
IPC: F16D13/64
Filed: 1942-06-01
Abstract: 557,569. Disc brakes. AUTOMOTIVE PRODUCTS CO., Ltd., and GATES, G. R. G. June 1, 1942, No. 7411. [Class 103 (i)] [Also in Group XXIV] In brakes; clutches, and like coupling devices having discs in frictional engagement with one another, the discs of one set are formed of or provided with facings of friction material and the mating discs are of metal and have annular ribs or corrugations which engage at their tops only with the mating discs. As shown, the metal plates 13 have annular ribs 19 and the plates 10 of friction material have shallow grooves 25 to cooperate therewith. The plates 13 may have radial slots, and they may be formed by stamping. For a servo brake mechanism giving a progressive action discs 10 are splined to a shaft 12 and the discs 13 are mounted on rods 14 on a carrier 15. The peripheral parts of discs 13 act as cooling fins. A cam 16 formed on the carrier 15 co-operates with a follower 17 on a spring loaded thrust rod 18 so that when the discs 10, 13 are in engagement the carrier 15 is dragged round and the rod 18 is moved-axially. The housing 21 is filled with oil. The plates 10, 13, are engaged by liquid pressure in a cylinder 22, the liquid pressure being produced in a pedaloperated master cylinder. The thrust rod 18 actuates the piston in a liquid pressure master cylinder 23 connected to the brake operating cylinders.
Patent GB-659840-A (GB)
Title: An arrangement for cooling porous fibre boards
IPC: D21J1/00
Filed: 1949-03-18
Abstract: 659,840. Cooling paper-boards. AKTIEBOLAGET SVENSKA FLAKTFABRIKEN. March 18, 1949, No. 7468. Convention date, April 30, 1948. [Class 96] Paper-boards 20 are cooled before stacking, by drawing air through them as they pass on a wire conveyer 10 over a suction-box opening 5, the wire 10 being supported by rolls 6 and travelling intermittently about rolls 11, 12, 13, 14. The wire 10 consists of a portion of open mesh, e.g. as a grid or longitudinal wires, ropes, or chains, &c., and a portion of close mesh such that its resistance to the suction is equivalent to that of aboard to be cooled. Single mercury switches 22, 23, and a double switch 21 such that in any position one switch-half is open and the other closed, are in the circuit of a motor 17 driving the wire 10. The single switches are actuated by the close-mesh wire portion, and the double switch by the board 20, the arrangement being such that the wire stops with its closemesh part over the suction-box opening 5 and is started when a board reaches the switch 21 so that the board is supported over the suction opening 5 by the "open" part of the wire 10. A spray 24 of water aids the cooling.