baber/WOPTO huggingface dataset:
Patent GB-1003773-A (GB)
Title: Improvements in or relating to switching networks
IPC: H04Q3/52
Filed: 1962-12-27
Abstract: 1,003,773. Automatic exchange systems. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Dec. 27, 1962 [Dec. 29, 1961], No. 48643/62. Heading H4K. In a switching network comprising at least two cross-point switching stages, means connected to the links between the stages enables the free, busy or just-marked condition of the links to be detected. The system uses PNPN transistors in the switching stages and the trunking arrangements are similar to those described in Specification 849,873. In setting up a call, a common marker marks the inlet and outlet of the network and also successively marks each of the cross-points in the selected channel between the inlet and outlet and a checking device which is connected to every link of the network determines at each step of the switching operation that the just-marked cross-point and only that cross-point has operated. As shown (Fig. 7) each of the links extending from the A-frame to a particular switching matrix of the B-frame (as indicated by the co-ordinate k=1,2,3,4) is connected by a common wire to a checking unit 35 (Fig. 10). Each of these wires 76 to 79 passes through a magnetic core 71 to 74 each of which has been set to one magnetic state at time t6 of a preceding pulse cycle. At time t2 one of the pulse generators 81 to 84, e.g. 82 (k = 2) is set whereby at time t4 it can be fired by a pulse from clock 91. The selected cross-point is fired at time t3 of the cycle and so generates a pulse on one of the links in the set with k = 2 which pulse is effective in triggering over the associated core, e.g. 72. Consequently pulse generator 82 at time t4 resets core 72 and a pulse is produced in output pulse generator 95. In the event that a link of another set (e.g. k=3) is marked a further core 73 is triggered over at time t3 whereby a fault indication is given by output generator 95 when the cores are all reset at time t6. A system using two cores operating as an amplitude discriminator for each set of links is also described (Fig. 9, not shown) whereby the marking of more than one link of a set can be detected. A cross-point which has broken down prematurely can be detected by observing the condition of cores 71 to 74 before they are subjected to a pulse at time t3, i.e. before a crosspoint is fired from the marker. In another arrangement which merely checks that at least one link has been marked all the links between two stages are connected to a common checking device (Fig. 6, not shown). The generators 81 to 84 and 95 comprise saturable cores and transistors (Fig. 8, not shown) and are of the type described in Specification 917,119.
Patent GB-1111098-A (GB)
Title: Yarn tensioning apparatus
IPC: B65H59/10
Filed: 1965-11-16
Abstract: 1,111,098. Tensioning strandular material. LEESONA CORPORATION. 16 Nov.. 1965 [22 Dec., 1964], No. 48676/65. Heading DID. Yarn Y or other strandular material is given an approximately constant tension by being passed through a device comprising guides 76, 74 mounted on a frame member 70, a rotatable member 90 (see also Fig. 3 not shown) which has eyelets 97, 98 and pegs 128, 130 and is urged to rotate by a spring (100) and projections 124, 126 mounted on the frame 70. In use the yarn is threaded as shown in Fig. 4 and the spring (100) rotates member (90) so that the yarn is forced to follow a sinuous path as in Fig. 5 (not shown). Changes in tension of the yarn coming to the device cause the member (90) to rotate with or against spring (100) and the yarn to follow a path which is more or less tortuous; thus the tension in the yarn leaving the device is regulated. A cap (104) in which the end of spring (100) is fixed may be rotatably adjusted to adjust the tension in the outgoing yarn. A damper is provided to prevent member (90) "hunting". A small, constant tension is given to the yarn by a double disc tensioner as it enters the device. In Fig. 1, not shown, the device is shown mounted on a multiple twist spindle and is covered by a cap 62 to keep out lint and the running yarn.
Patent GB-1021770-A (GB)
Title: Improvements relating to bis-(4-aminocyclohexyl)methane
IPC: F16N3/12
Filed: 1962-12-28
Abstract: A bis-(aminophenyl)methane is converted to a stereoisomeric mixture of the bis-(aminocyclohexyl)methane (a), or a single stereoisomeric of (a) is converted to a stereoisomeric mixture, or a stereoisomeric mixture of (a) is converted to such mixture nearer the equilibrium position, by the action of H2 at a partial pressure thereof of at least 500 p.s.i. and at a temperature at least 180 DEG  C. in presence of Ru and at least 1% NH3 based on the weight of the starting material. Preferably the product is bis-(4-aminocyclohexyl)methane.
Patent GB-1206114-A (GB)
Title: Roof support suitable for use in mines
Inventor: HOLLIS RICHARD JOHN
IPC: E21D23/00
Filed: 1966-11-01
Abstract: 1,206,114. Advancing mine roof supports. DOWTY MINING EQUIPMENT Ltd. 15 Jan., 1968 [1 Nov., 1966], No. 48963/66. Heading E1P. In an advancing mine roof support having an advancing jack 5, 6 pivotally secured to a relay bar 13 the ram 6 of the jack has a slide member 4 welded thereto which slides in a guide member 3 on the base 1 and serves to protect the jack from bending moments.
Patent GB-1489569-A (GB)
Title: Electric sockets
IPC: H01R13/453
Filed: 1973-10-20
Abstract: 1489569 Shuttered electrical socket J A CRABTREE & CO Ltd 10 Oct 1974 [20 Oct 1973 28 June 1974] 48990/73 and 28731/74 Heading H2E An electric socket comprises a shutter 24 which on insertion of one pin or like article through an opening 18 in the face plate 6 pivots about a cylindrical portion 28 causing shoulder 36 to engage with an interior surface of opening 20 so preventing the shutter from opening, while simultaneous insertion of two pins moves the shutter against spring 46 so allowing the pins to engage terminals 14 and 16. In an alternative embodiment the cam surface 134, Fig. 4, is less than half the width of the associated opening 118 or 120 into which it partly extends (Fig. 3, not shown) and is received on opening the shutter in a slot (140) extending laterally from each opening on the interior of the face plate (106). On insertion of one pin a shoulder 136 engages with one of two recesses (142) extending the full width of the face plate (106).
Patent GB-1285223-A (GB)
Title: Communication transmission system comprising broadband transmission channels, with a plurality of subscribers
IPC: H04J13/00
Filed: 1969-10-08
Abstract: 1285223 Interconnection systems TELEFUNKEN PATENTVERWERTUNGS GmbH 8 Oct 1969 [9 Oct 1968] 49442/69 Heading H4K In a TDM system each intelligence signal is preceded by an address signal which is effective at a relevant subscriber station to gate the intelligence signal into the station and the transmission media is fibre optic. The media may be terminated at each end in reflection free sinks, there being one media for each direction of communication (Fig. 1, not shown) or, be terminated at one end by such a sink and coupled at the other end to one or more other media for return transmission (Fig. 2, not shown). Preferably each station is coupled to the Go and Return media at repeater amplifier points. Intelligence signals may be transmitted as modulations on a unique binary address signal or as a pulse code following a binary address. A bell may be rung to indicate the arrival of a message.
Patent GB-1116338-A (GB)
Title: Housing for electrical components
Inventor: PRIOR HECTOR THOMAS
IPC: H05K5/04
Filed: 1965-11-23
Abstract: 1,116,338. Housings for electrical equipment; waveguides; co-axial cables. STANDARD TELEPHONES & CABLES Ltd. 18 Nov., 1966 [23 Nov., 1965], No. 49635/65. Headings H1A, H1R and H1W. A housing for electrical equipment comprises a metal member 7 of channel form, within which electrical, e.g. microwave, components (not shown) are housed in heat conductive relation with the member 7, the open side of member 7 being closed by a metal plate 9 so that members 7 and 9 constitute a support, a heat sink, and a screen for the components. Member 7 is made of sheet and/or extruded aluminium. A plurality of projecting fins on one side of member 7 are closed by a metallic screen 8, to form closed channels 11. Further fins 10 for heat-dissipation are formed on the other two sides of member 7, and internal projections 12 are slotted along their length to receive aluminium screens and component mounting boards (not shown) which are mounted transverse to the axis of channel member 7; components may also be mounted direct on to member 7 or in individual screening boxes, in which latter case the aluminium screens may be omitted. Channels 11 may contain individual conductors insulatedly spaced therefrom to constitute co-axial transmission lines or resonators, connections beng taken insulatedly through member 7 where required. Alternatively, channels 11 may be used as waveguides. Two racks may be placed side by side so that abutting fins 10 form rectangular channels for cooling air, or semi-circular webs may be placed between adjacent fins 10 of each rack to form circular ducts to accommodate pipes containing circulating cooling fluid.
Patent GB-1511542-A (GB)
Title: Method of treating cotton crops with diurethanes
IPC: C07C239/00
Filed: 1975-03-17
Abstract: 1511542 Selective herbicides SCHERING AG 17 March 1975 [20 March 1974] 49635/77 Divided out of 1511541 Heading A5E Cotton crops are treated against weeds by applying one or more compounds of formula: where R 1  is allyl, unsubstituted C 1-4  alkyl, or C 1-4  alkyl substituted by 1-5 halogen atoms or 1-3 -OH groups; R 2  is unsubstituted C 1-4  alkyl; C 1-4  alkyl substituted by 1-5 halogen atoms; C 3-4  alkenyl or alkynyl; cyclohexyl; unsubstituted phenyl; phenyl substituted by 1-3 C 1-3  alkyl groups, C 1-3  alkoxy groups or halogen atoms; benzyl or phenylethyl and R 3  is unsubstituted C 3-4  hydrocarbon, or C 3-4  hydrocarbon, or ethyl substituted by 1-5 halogen atoms; or R 1  is ethyl or allyl, R 2  is unsubstituted phenyl or phenyl substituted by 1-3 C 1-3  alkoxy groups or halogen atoms, and R 3  is methyl or ethyl. Reference has been directed by the comptroller to Specification 1173753.
Patent GB-1017033-A (GB)
Title: Improvements in or relating to the reproduction of stored information
IPC: G11B5/62
Filed: 1963-12-17
Abstract: 1,017,033. Magnetic tape; Hall effect. AMPEX CORPORATION. Dec. 17, 1963 [Dec. 26, 1962], No. 49797/63. Heading G5R, [Also in Division H1] To play back a tape recorded normally, without using a conventional playback head, the tape 20 includes a Hall-effect material in its ferromagnetic layer. A control current 22 is applied between longitudinally-spaced wipers (or rollers) 24 and an e.m.f. output results across transversely spaced electrodes 26. The active tape layer (see Division H1) may comprise ferric oxide and InSb or InAs as a mixture, or layers (Figs. 1, 2 respectively, not shown) or a nickel, cobalt or nickel-cobalt layer with combined ferromagnetic and Hall-effect properties (Fig. 3, not shown).
Patent GB-1503767-A (GB)
Title: Soil treatment compositions
Filed: 1975-12-05
Abstract: 1503767 Treating soil REVERTEX (SOUTH AFRICA) (PTY) Ltd 5 Dec 1975 50059/75 Heading A1E [Also in Division Cl] A polymer emulsion is applied to particles of sand or soil to provide from .01 to .05% by weight of polymer, the amount being such as to render the particles non-wetting. The polymer is applied to the sand or soil which is then mixed and dried. Plant nutrients may be added. The product may be marketed as an aid to plant growth. In one test furrows were prepared, lined with dried polymer-treated sand, refilled with normal soil and planted with sugar cane settes. The improved water retention increased the number of shoots obtained eight weeks after planting.
Patent GB-1201503-A (GB)
Title: Method and apparatus for detecting the presence of dangerous concentrations of combustible gases and vapors in the air
IPC: G01N21/71
Filed: 1967-11-06
Abstract: 1,201,503. Detecting combustable gases. GAS DETECTOR S.p.A. Nov.6, 1967 [Nov.5, 1966], No.50392/67. Heading G1A. In a method of detecting combustible gases or vapours in the ambient air, the air is passed over an oxidation catalyst and radiation emitted during oxidation of said combustible gases or vapours is detected and measured. As shown a blower P blows air through a glass tube 1 contained within an aluminium housing 2 having cooling fins 3. A metal filament 8 heated by a current from a battery B and coated with the catalyst which may be a transition metal such as platinum, palladium, nickel or cobalt or an alloy of these and may contain an accelerator such as thorium, is located within the tube. The oxidation produces visible light at the red end of the spectrum and its intensity is indicative of the concentration of the combustible gas or vapour. This light is however converted into infrared radiation as it passes through the air towards the detectors. Two photo-sensitive silicon cells 7 and 107 are used and the outputs are combined in a differential amplifier A.D. The output, indicative of the difference in the amounts of gas or vapour oxidized adjacent the two photo-cells is fed to a recording, measuring or indicating device M and to a relay R which responds at a given level to sound a bell 10.
Patent GB-1041810-A (GB)
Title: Pneumatic-hydraulic feeding unit
IPC: F15B11/076
Filed: 1964-12-11
Abstract: 1,041,810. Pneumatic single stroke apparatus. F. LEHLE. Dec. 11, 1964, No. 50446/64. Heading F1P. The cylinder 2 of a pneumatichydraulic unit has a piston 5 displaceable therein and is surrounded by a concentric annular chamber 1 containing a membrane 9 which divides the chamber into a liquid filled chamber 10 communicating through an adjustable throttle valve 14 with the cylinder space 8 to the left of the piston 5, and into a gas chamber 11 connected through a valve 16 either to a source of compressed air or to atmosphere. In operation with the valve 16 in the position shown, compressed air is supplied to the cylinder space 7 to the right of the piston 5, whereby the piston moves to the left against the resistance of the liquid in the space 8 being forced to flow through the throttle valve 14 to the chamber 10. The chamber 10 thereby expands expelling air from the chamber 11 through the valve 16. When the valve 16 is operated to return the piston 5, compressed air enters the chamber 11 thereby acting on the membrane 9 to force liquid from the chamber 10 back into the cylinder space 8.
Patent GB-1420058-A (GB)
Title: Propylene oxide recovery
IPC: C07D301/32
Filed: 1974-11-21
Abstract: 1420058 Propylene oxide recovery OXIRANE CORP 21 Nov 1974 [21 Nov 1973] 50554/74 Heading C2C Propylene oxide is recovered from a substantially propylene-free crude product, obtained by the catalytic epoxidation of propylene with an organic hydroperoxide, the crude product including propylene oxide, acetaldehyde, propionaldehyde, and other material having a boiling-point higher than that of propylene oxide, by a process comprising (a) passing the crude product into a first fractionator, withdrawing therefrom a first distillation overhead containing acetaldehyde and a first distillation bottoms containing propylene oxide, propionaldehyde and said higher boiling material; and (b) passing the first distillation bottoms to a second fractionator, withdrawing therefrom a second distillation overhead containing propylene oxide substantially free of aldehydes and higher boiling material and withdrawing the higher boiling material as second distillation bottoms. Preferably the first fractionator is operated at a bottom zone temperature of 35-100 C. and the second at 50 to 100 C. The crude epoxidation product may contain water which is withdrawn in the second distillation bottoms. The epoxidation reaction may conveniently be effected with ethylbenzene hydroperoxide as oxidizing agent.
Patent GB-1442513-A (GB)
Title: Reductive alkylation of substituted anilines
IPC: C07C/
Filed: 1974-05-31
Abstract: 1442513 Reductive alkylation of substituted anilines AMERICAN CYANAMID CO 31 May 1974 [25 June 1973] 50710/75 Divided out of 1442512 Heading C2C An N-alkylated aromatic amine of the formula wherein R 1  is C 3 -C 6  cycloalkyl or C 3 -C 8  secalkyl optionally monosubstituted with halogen or C 1 -C 4  alkoxy; R 2  is H, halogen, C 1 -C 4  alkyl or alkoxy, C 1 -C 4  monosubstituted alkyl where - in the substituent is halogen or C 1 -C 4  alkoxy; and R 3  is H, CF 3 , CH 3 SO 4 , halogen or C 1 -C 4  alkyl or alkoxy; is obtained by reductively alkylating an aromatic amine of the formula with H 2  and a ketone selected to give the desired R 1  substituent, in the presence of a noble metal catalyst and a promoter acid having a pKa of from 0À3 to 2À0. The aromatic amine of Formula II may be formed in situ from an oxidized precursor thereof. Specified precursors are the nitro, nitroso, hydrazo, azo, azoxy, hydroxylamino, diazoniumsalt or Schiff's base derivatives of said aromatic amines. Specified promoter acids are 2-naphthalene sulphonic acid, ptoluenesulphonic acid, ethylbenzene sulphonic acid and trichloroacetic acid. Preferred catalysts are Pt and Pd, preferably absorbed or supported on a substrate.
Patent GB-1056320-A (GB)
Title: Cathode-ray tube devices
IPC: H01J29/70
Filed: 1964-12-14
Abstract: 1,056,320. Colour television receiving tubes. MATSUSHITA ELECTRONICS CORPORATION. Dec. 14, 1964 [Dec. 17, 1963], No. 50793/64. Heading H1D. A colour television receiving tube having a plurality of electron guns comprises at least one electron gun provided with horizontal and vertical deflecting polepieces, wherein a single magnet disposed outside the envelope is used for magnetizing both sets of polepieces. The other electron guns have only a horizontal or vertical deflecting polepieces. The single magnet is movable in a direction axially of the tube, in a direction perpendicular thereto, and rotatable about an axis perpendicular to a tube axis passing through the centre of the axis.
Patent GB-1499315-A (GB)
Title: Token readers
IPC: G07B11/09
Filed: 1975-03-14
Abstract: 1499315 Token readers COMMUNICATIONS PATENTS Ltd 14 March 1975 [16 March 1974] 50928/75 Divided out of 1499314 Heading G4V A token reader comprises means defining a cavity 3 for receiving a token 1, means for producing an electrical signal representative of physical characteristics of the token, and means for severing the token. Token 1 has a hole 7, Fig. 2, and a series of holes 2 therein. Activation of solenoid 4 causes plunger 5 to insert pin 6 in hole 7; also latch 8 engages notch 9 and locks the plunger. Severing of the token occurs when solenoid 12 is activated to extend plunger 11. The plunger is spring biased and on its return movement latch 14 pivots latch 8 to allow spring biased plunger 5 to effect a return movement. Fig. 2 shows electronic components whereby a television set can be connected to one of a plurality of inputs. Each phototransistor 15 is arranged in series with a resistor and may be used to control programme channel selection. A light source 16 activates a phototransistor through an aperture 2, which phototransistor provides an output 18 which may control a channel selector. A different card having a differently positioned hole 2 would activate another phototransistor. The token reader also has an 8-bit shift register 19 which receives a 50 Hz square wave pulse train on an output 20. Means (not shown) are arranged to provide an enabling input 21. Card 1 extends between light emitting diodes 22 and a large area photodetector 23. When shift register 19 is enabled by input 21, the pulses on input 20 cause the diodes 22 to light one at a time in sequence so that the output of photodetector 23 comprises three pulses in time with the second, fifth and seventh pulses (as shown). The output of the photodetector thus constitutes a "card code" signal. An eighth output of the shift register 19 may be used to indicate the end of any one card scanning sequence. In a further embodiment Fig. 3 (not shown) conductive strips on the token are used instead of holes. Conductive inks or optically reflective surfaces may also be utilized.
Patent GB-1487084-A (GB)
Title: Fluid control valve
IPC: F15B13/00
Filed: 1974-11-25
Abstract: 1487084 Fluid-pressure servomotor systems KAYABAKOGYO KK 25 Nov 1974 [26 Nov 1973] 51027/74 Heading G3P [Also in Division F2] A fluid-flow control valve of similar design to the valve disclosed in Specification 1421184 and used in similar applications, has its spool member divided into two independently movable parts 53, 54. The first part 53 is lifted in response to a pressure differential created across orifice member 74 when solenoid valve 82 is positioned as shown to allow the flow of pilot fluid through pilot passage 76, whereby it connects inlet 47 directly with no-load outlet 28. Switching of valve 82 causes termination of the pilot flow with consequent return of the first part 53 to its lower position whereafter the inlet fluid-pressure forces the second part 54 downwardly to connect the inlet 47 directly with load-outlet 78. If then the pressure of the load-outlet side rises above a set pressure a relief valve 81 will open and permit pilot fluid to flow once again through passage 76, whereby the first part 53 starts to move upwardly and thus keeps the load-outlet pressure the same as the set pressure. The valve housing is provided with two chambers for respective spool members. The second chamber may be blanked off by a plug 17 as shown or it may contain a divided spool valvemember or a single spool valve-member of conventional design. The second spool valve-member is associated with a respective pilot flow passage and may be associated with an independent relief valve.
Patent GB-1472678-A (GB)
Title: Preparation of mass coloured or whitened polyester shaped articles
IPC: D01F6/92
Filed: 1975-12-15
Abstract: 1472678 Preparing mass coloured or whitened polyester articles CIBA-GEIGY AG 15 Dec 1975 [18 Dec 1974] 51223/75 Heading C3R Mass coloured or whitened shaped articles of a linear polyester are prepared by mixing the polyester, in the solid or molten state, with a preparation comprising a colourant or fluorescent brightener which is soluble or insoluble in the polyester and a high molecular weight polystyrene with a softening point above 100 C., and the resultant mixture is converted from the molten state to shaped articles. The preparation preferably contains 10-70% by weight of the colourant or fluorescent brightener. Preferably, the shaped article contains 0À01 to 5% by weight of colourant or fluorescent brightener and 0À01 to 10% by weight of polystyrene, both based on the polyester. Various colourants are used in the examples, e.g. copper phthalocyamine or carbon black. Polyethylene terephthalate is the preferred polyester.