baber/WOPTO huggingface dataset:
Patent GB-1511704-A (GB)
Title: Coupling
IPC: F16D25/061
Filed: 1975-11-03
Abstract: 1511704 Positive clutches GARRETT CORP 3 Nov 1975 [4 Nov 1974] 45656/75 Heading F2C A positive clutch for connecting an aircraft auxiliary power unit to a compressor used to start the main propulsion engines comprises rollers 32 carried by slots 40 in a driving sleeve 36 and held in engagement with recesses 34 in a driven sleeve 26 by a ring 42 which is rotated relative to the sleeve 36 by an hydraulic actuator 46 to align recesses 44 therein with the slots 40 and thus permit the rollers 32 to move radially outward under centrifugal force to disengage the clutch. Centrifugal force acting on the rollers 32 prevents clutch re-engagement until the driving sleeve speed is reduced to almost zero. Clutch disengaging axial movement of the hydraulic actuator piston 40 acts through a radial pin 58 and cam slots 60, 62 in the ring 42 and sleeve 32 respectively to cause relative rotation therebetween.
Patent GB-1104457-A (GB)
Title: Improvements in and relating to conveyors
IPC: B65G47/54
Filed: 1965-10-29
Abstract: 1,104,457. Conveyers. RAPIDS-STANDARD CO. Ltd. 29 Oct., 1965 [15 Dec., 1964], No. 45934/65. Heading B8A. A conveyer system comprises a main conveyer 12, Figs. 1 and 2, a branch conveyer 14 and a diverting mechanism 16, the latter including a pair of spaced, continuously driven endless chains 40, Fig. 3, carrying therebetween freely rotatable wheels 68 which engage a track 80 so that articles diverted from the conveyer 12 to the conveyer 14 are propelled at a greater speed than the linear speed of the wheels 68 along the track 80. The conveyer 12 comprises rollers 24 driven by an endless belt 26 which is supported by backing rollers 28. Alternatively, the rollers 24 may be replaced by wheels and the drive could be other than by the belt 26, or the conveyer may be a gravity conveyer. The conveyer 14 comprises wheels 30 or rollers. The chains 40 extend around sprockets 46, 52 and are driven by a motor 56 through a gear-box 64 and a chain drive 60. The outer surface of the wheels 68 may be of rubber. The wheels 68 are moved vertically by pivotal movement of the track 80 about a pivot 82 disposed at the downstream end of the mechanism 16, the track being moved by a cam 86. In operation, when the track is moved vertically, the upstream wheels 68 are moved between positions above and below the rollers 24. In the upper position of the track articles are diverted from the conveyer 12 round a guide wheel 98 on to the conveyer 14. The downstream wheels 68 are always above the wheels 30 so that even if the track is lowered after an article is diverted, the latter will continue to be propelled to the conveyer 14. The cam 86 is moved to raise the track 80 by a solenoid 100 the armature 102 of which is connected to a pivoted, spring-loaded lever 104, the cam 86 and the lever 104 being secured to a common pivot shaft 88. Alternatively, the cam 86 may be moved by pneumatic, mechanical or hydraulic means and the power means may be controlled manually, electrically or pneumatically. The control may be by the articles according to a sensing or preset code system. Instead of the branch conveyer 14 other article receiving means may be provided, e.g. a work station or an elevator. The track 80 may be replaced by a continuous belt moved in a direction opposite to or in the same direction as that of the chain movement.
Patent GB-1284611-A (GB)
Title: A shaft supporting bearing
IPC: F16C35/02
Filed: 1969-09-18
Abstract: 1284611 Ball and socket joint FRUEHAUF Corp 18 Sept 1969 [3 Oct 1968] 46032/69 Heading E2F [Also in Division F2] In a shaft-supporting bearing a socket is provided with an entrance-passage 16 through which a truncated ball-shaped member 18 is passed into the socket, the member 18 then being rotated through 90 degrees so that an aperture 19 of the member 18 can receive a shaft therein. The socket is formed of members 11, 12 which are connected together by welding for example. The member 11 has the passage 16 formed therein and the member 12 has a recess formed by a deflected portion 17 which is aligned with the recess 16 and which facilitates the assembly of the ball-shaped member 18 into the socket. The member 12 has a slot 29 formed therein which receives a fitting 27 carried by the ball-shaped member 18, so as to prevent the latter from rotating in the socket. The fitting 27 also serves as a lubricant opening and seals 26 are provided to prevent escape of the lubricant from the bearing. The ball-shaped member 18 may be made of synthetic plastics material.
Patent GB-1474564-A (GB)
Title: Process for coating the rubbing surfaces of a seal for a gas turbine regenerator
IPC: F28D19/04
Filed: 1974-10-25
Abstract: 1474564 Coated article FORD MOTOR CO Ltd 25 Oct 1974 [14 Nov 1973] 46207/74 Heading B2E [Also in Division B5] A low friction seal coating is formed on a rubbing seal surface for a ceramic regenerator core (a component of a gas turbine) by applying a nickel chromium alloy powder to the seal surface, applying a mixture of a polyarylsulphone polymer and graphite to the coated surface and drying at 250‹-300‹F for at least 15 minutes, curing the coating at 400‹-500‹F for ¢ to 1 hour and pressure laminating the coating at 500-800‹F for 5 to 15 minutes at 200-1500 p.s.i., slowly cooling the coated core and grinding the coating to smooth surface finish. The polymer/graphite mixture may be replaced by a polymer/graphite/ boron nitride mixture in order to withstand temperatures above 600‹F. In a modification of the method, such a polymer/graphite/boron nitride mixture may be pressure moulded below 700‹F to a chrome stainless steel surface which has previously been treated with Ni-Cr alloy powder the resin mixture having been formed into a slurry with an organic solvent and spread into thin sheets. The seal surface is suitably prepared prior to coating, e.g. by abrasives. The surface is also washed and rinsed with solvent. The clear, degreased surface is grit blasted, then rinsed with solvent and air dried. Coating may be by plasma spraying.
Patent GB-1442054-A (GB)
Title: Polycyclic dyestuffs
IPC: C09B5/24
Filed: 1974-10-25
Abstract: 1442054 Polycyclic dyestuffs BAYER AG 25 Oct 1974 [26 Oct 1973] 46234/74 Heading C4P Polycyclic anthraquinone dyestuffs have the formula in which R 1  and R 2  independently represent an alkyl, cycloalkyl, aralkyl or aryl radical or together with the N-atom form a ring which is optionally further interrupted by one or more hetero-atoms, and in which both the benzene nucleus A and R 1  and R 2  optionally carry non- ionic radicals (e.g. halogen, OH, CN, C 1-4  alkoxy or C 1-4  alkoxycarbonyl). They may be prepared by reacting the appropriate 3-imino- 4,7 - diamino - 5,6 - phthaloyl - isoindolenines which carry a replaceable substituent (e.g. alkoxy or alkylmercapto) in the 1-position with an appropriate amine-NR 1 R 2 . The dyes are suitable for dyeng fibres such as polyamides, polyacrylonitrile, polyesters and cellulose acetates in blue colours.
Patent GB-1481985-A (GB)
Title: Methods of oxidising ammonia in air
IPC: B01D53/86
Filed: 1974-10-25
Abstract: 1481985 Removing NH 3  from air RICOH CO Ltd 25 Oct 1974 [5 Nov 1973] 46243/74 Heading C1A Ammonia is removed from air by oxidation in the presence of a catalyst comprising a heatresistant carrier carrying 0À3-2À0 wt. per cent of a platinum metal which catalyst has been heated at 500-1000‹ C before being contacted with the air. The catalyst may also contain an oxide of Cu, Fe, Co or Cr. The ammoniacontaining air may be air which has been used to cool the exposure lamp of a diazo ammonia copying machine.
Patent GB-1137089-A (GB)
Title: Improvements in or relating to refrigerators
Inventor: SHONE KENNETH ARTHUR
IPC: F25D11/02
Filed: 1966-10-17
Abstract: 1,137,089. Refrigerators. ENGLISH ELECTRIC CO. Ltd. 27 Sept., 1967 [17 Oct., 1966], No. 46299/66. Heading F4H. A refrigerator comprises a freezer compartment 4 and baffles 7, 8 which provide a dead air space around the freezer, the storage compartment 3 being cooled by conduction through the baffles. The vertical baffle 8 is of greater conductivity than baffle 7 so as to collect the greater part of the condensate which drips into a collecting trough 15. Baffle 8 is connected to the rear wall of the cabinet by a strip 14 which includes a removable plug for releasing defrost water from the air space. Baffle 7 may be formed as a slidable chiller tray which seals against the freezer compartment and baffle 8 when fully inserted.
Patent GB-1477350-A (GB)
Title: Diode ring mixer
IPC: H03D9/06
Filed: 1974-10-25
Abstract: 1477350 Frequency changers PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 25 Oct 1974 [30 Oct 1973] 46330/74 Heading H3F A diode ring mixer comprises four diodes connected as a bridge 9, a signal source being connected between the diagonal terminals 1, 1, one terminal of an oscillator 23, Fig. 2, being connected to the opposite diagonal terminals via conductors 11, 12, the latter being coupled to a body of gyromagnetic material 17, the body being coupled to an output line 19 extending in a plane perpendicular to the plane of conductors 11, 12, the body being magnetized by a field Ha in a direction parallel to the plane of the conductors 11, 12 and perpendicular to a symmetry plane of the body symmetrically disposed in relation to the conductors. The signal input at terminals 1 is balanced about earth point 8, and the voltage of oscillator 23 is applied symmetrically to both conductors 11, 12, so that the difference frequency current flows around the loop formed by conductors 11, 12 and produces magnetic resonance in body 17. In the embodiment shown output line 19 is connected to the corresponding line of a second identical diode ring mixer comprising diode ring 10, gyromagnetic body 18 and oscillator 24, the final output being taken from terminals 2, 2. In another embodiment (not illustrated) a second local oscillator is connected to one end of output line 19, the other ends being connected to a diagonal of a second diode ring. The gyromagnetic bodies 17, 18 may be spheres of yttrium iron garnet (YIG). The applied field Ha may be provided by permanent magnets 27, 28, Fig. 3, which interconnect two pole plates 25, 26. Input and output connections to the mixer may be partly microstrip lines on alumina substrates 32.
Patent GB-1060399-A (GB)
Title: Method and apparatus of manufacturing a hollow moulded article
IPC: B65H23/188
Filed: 1963-11-25
Abstract: 1,060,399. Extrusion; blow moulding. ARBURG MASCHINENFABRIK HEHL & SOEHNE. Nov. 25, 1963 [Nov. 28, 1962; Feb. 12, 1963], No. 46412/63. Heading B5A. In a process for blow moulding hollow articles, thermoplastic material is accumulated within the cylinder of an extrusion device, the rotating screw of which is subsequently moved lengthwise to extrude a tube of predetermined length between two halves of a mould, a blowing nozzle is then introduced into the tube and the mould halves closed, whereupon compressed air is supplied to the blowing nozzle to effect blow moulding. In the operation of the preferred embodiment material accumulates in an extrusion cylinder causing it to move in one direction until the screw is moved in the same direction by the operation of a jack to extrude a tube from the nozzle into the space between the mould halves 8 and 9, which have been moved to the Fig. 2 positions to receive the tube. In these positions the plates 5 and 6 to which the mould halves are attached engage the linkage 12-15 which supports the jack 10, 11, carrying the blowing nozzle. The arrangement is such that as the mould halves come to the Fig. 2 positions the nozzle 7 is raised to enter the tube. The mould halves then close against the pressure of springs 21 and compressed air is supplied to the blowing nozzle to effect moulding. After moulding the mould halves open and the air supply to the blowing nozzle is cut-off. In another example, the blowing nozzle is pivoted to one of the mould halves and on closure of the mould, is moved into operative position by a cam lever.
Patent GB-1363029-A (GB)
Title: Method of and an arrangement for modulating directly a semiconductor  laser
IPC: H01S5/06
Filed: 1972-10-09
Abstract: 1363029 Lasers HITACHI Ltd 9 Oct 1972 [8 Oct 1971] 46532/72 Heading H1C A semi-conductor laser modulator has its bias current adjusted to a value producing an output beam with a particular TE mode, and a modulating current of a selected value is superposed on the bias current so as to cause the output beam to change to a different TE mode, the output beam being applied through an optical path capable of transmitting one only of the modes. A stripe electrode semi-conductor is used which is either a GaAs PN junction, Fig. 1 (not shown), or a GaAs-GaApAs double heterostructure, Fig. 2a (not shown). Two of the modes TE 00 , TE 01 , TE 02  are preferably used, Fig. 1b the intensities shown being across the beam emitting region of the semiconductor face. Mode selection in the optical path may be effected by a pair of optical fibres 22, 24, Fig. 3b, aligned with the beam emitting region of the semi-conductor face so as to pass the two peaks, respectively, of a TE o1  mode beam 20. Due to the phase difference of the two peaks the equal intensities received by a photodetector cancel out and no electrical output is passed to a signal receiver. When a modulating current is superposed on the laser bias current the output beam is changed to either the TE oo  or TE o2  mode. In either case the optical fibres then transmit radiation of lesser intensity but of the same phase, and the photo-detector is able to respond. The lens 26 in the radiation path is optional. An alternative arrangement, Fig. 4b, uses a single optical guide of such limited cross-section that only the central peak of the even order TE 00  or TE 02  modes is transmitted. Modulation changes the output beam to an odd order mode, the optical guide being unable to transmit this mode due to its displaced intensity peaks. Alternatively the optical guide may be replaced by a guide transmissive of the lowest mode order only. The arrangement may be used in a PCM system.
Patent GB-1484333-A (GB)
Title: Apparatus for use in generating pulses
IPC: G01G23/36
Filed: 1974-10-29
Abstract: 1484333 Pulse generator GAO GES FUR AUTOMATION UND ORGANISATION mbH 29 Oct 1974 [30 Oct 1973] 46799/74 Heading G1A An electro-mechanical timing pulse generator comprises a rotating transparent disc 3 with a line pattern 8 moving past a similar line pattern of a fixed segment 4 in the field of view of a photo-cell converting light-dark changes into electrical pulses, both disc and segment are made from thin flexible sheeting and slide across each other under pressure in the pattern area. Light from source 1 passes through both patterns. Punched hole 10 and holes 12 and 13 with pins 15 permit fixing of the disc and segment to the lower part 16 of the housing. The pattern 8 extends all round disc 3, which is reinforced by metal discs 7 and 6, of which recess 14 is entered by the free end of segment 4, the mounting of which is displaced to cause pressure between segment 4 and disc 3, the deflection of which is such that no plastics deformation takes place up to 70‹C. The patterns 8, 9 are on the non-contacting sides of the disc and segment, which may both be of film material, and thus separated by 0À2 mm. Patterns are made with a photographic reduction of 10:1. The upper part of the housing carries electronic circuits and the photo-cell.
Patent GB-1071999-A (GB)
Title: ª†-hydroxy-1,4-quinone derivatives
IPC: C07C46/06
Filed: 1964-03-16
Abstract: The invention comprises compounds of the general formula <FORM:1071999/C2/1> in which Z is the group <FORM:1071999/C2/2> and R is a methyl or <FORM:1071999/C2/3> radical in which n is an integer from 1 to 9.  In an example 3-(3-hydroxy-3,7,11,15-tetramethyl-hexadecyl) -2-methyl-1,4-naphthoquinone is prepared by treating Vitamin K1(20), (2-methyl-3-phytyl-1,4-naphthoquinone) with sulphuric acid and cooling the mixture, the resulting mixture is extracted with ether, dried and washed, the product is further purified by chromatography on silica gel and extraction with n-hexane. Other compounds of the general formula given may be prepared by analogous methods.  The products may be used for the preparation of 5-phosphomethyl-6-chromanols.
Patent GB-1389559-A (GB)
Title: Two-wire to four-wire conversion circuit
IPC: H04B1/58
Filed: 1972-10-12
Abstract: 1389559 Two to four wire converters; automatic exchange systems; gyrators INTERNATIONAL STANDARD ELECTRIC CORP 12 Oct 1972 [20 Oct 1971] 47025/72 Headings H4K H4R and H3V A circuit for conversion between two-wire and four-wire operation includes for each direction of transmission a differential amplifier comprising a pair of complementary transistors. The Figure shows two subscribers lines A, B and A<SP>1</SP>, B<SP>1</SP> coupled via line circuits LC, LC<SP>1</SP> and cascaded stages of MOS transistors (not shown but having their resistance represented by resistors Rds) to a junctor J. The paths between the line circuits and the junctor operate in 4 wire fashion and the line circuits of which only LC is detailed interconnect the 4 wire paths with the 2 wire subscribers lines. Line circuit LC includes a first differential amplifier T 1 , T 2  which couples signals from the 2 wire to the 4 wire path, a second differential amplifier T 3 , T 4  which couples signals incoming in the direction N from the four wire path to the 2 wire line AB and a circuit comprising a pair of transistors T5, T6 connected as diodes and serving to distribute steady current between the conductors m and n. The D.C. potentials required by circuit LC are supplied by electronic dipoles (described below) and which offer low D.C. impedance yet minimize crosstalk and give protection against short-circuits in the subscribers loop. Zener diodes D1, D2 cooperate to supply constant currents I1, I2 and I34. Theory is included which shows that if resistor R1 is matched to the impedance ZL of the line signals incoming in the direction N are not reflected in the direction M. Electronic dipole Fig. 7.-Comprises a gyrator circuit comprising Transistor 21, resistors R<SP>11</SP>21, R<SP>1</SP>21 and R22 and capacitor C21 and a current limiting circuit comprising transistor T22. The equivalent inductance of the gyrator is R22.(R<SP>1</SP>21 +R<SP>11</SP>21 + (hie)/(hfe)). C21 where hfe is the input impedance of the transistor T21 in common emitter configuration. The internal impednace of the dipole can be reduced by using in place of T21, a Darlington configuration.
Patent GB-1222408-A (GB)
Title: Traverse mechanism for high-speed winding devices
IPC: B65H57/26
Filed: 1968-10-04
Abstract: 1,222,408. Traverse mechanisms. GLANZSTOFF A.G. 4 Oct., 1968 [24 Oct., 1967], No. 47202/68. Heading D1J. A traverse mechanism of the kind in which a slide member 5, Fig. 1, (follows a grooved path 2 in a rotating drum 1, and in which a traverse bar 3 carrying yarn guides (not shown) is coupled by retaining means 4 to the slide member 5, is characterized in that the retaining means 4 includes two rubber rings that surround the traverse bar and couple the traverse bar to the slide member 5. In Fig. 3 two metal discs 14 are interconnected by a metal sleeve 13. The traverse bar 3 extends into and is secured to the discs 14. The slide member 5 is a roller 10 on a pin 11 screwed into a base plate 6. Secured to the base plate 6 are prismatic members 7 that slidingly engage with straight prismatic guideways. The base plate 6 is rigid with a flanged metal ring 15 that encircles the sleeve 13. The rubber rings 16 are vulcanized to the sleeve 13, discs 14 and ring 15.
Patent GB-1184217-A (GB)
Title: Improvements relating to Electrical Actuating Devices
Inventor: RILEY DENNIS ARNOLD
IPC: B61B10/02
Filed: 1967-10-17
Abstract: 1,184,217. Endless conveyers. SOVEX Ltd. 7 Oct., 1968 [17 Oct., 1967], No. 47304/67. Heading B8A. [Also in Division F2] An actuating device comprises a rotary armature or rotary solenoid electromagnet 10, Fig. 1, connected by its movable element to a first arm 18 which has a part 20 engaged in a slot 22 formed in a spring loaded pivotally mounted second arm 24 connectable to the actuated element, the two arms being so arranged with respect to their turning axes and their interengaging parts as to form a selflocking mechanism which will retain the second arm in both of the end positions to which it is moved by the first arm. The device may be used with a bag release mechanism of the type described in Specification 933,891, the bag clamps being supported by a conveyer chain which passes between guides 41. Code sensing devices (42, 43), Fig. 2 (not shown) actuate the device in response to a conveyer-carried triggering code to move a ramp (14) into its operative position to allow a selected bag clamp to be released. Operation.-When magnet 10 is energized the peg 20 travels firstly along side 32 and then along the upper side (Fig. 1) of slot 22 until the peg is arrested in apex 30 when the first arm 18 has passed slightly beyond the right-angle position with respect to the second arm 24. The latter has been rotated clockwise, the movement being transmitted via a shaft (26) and a spring coupling (36) to the ramp (14), the system being self-locked in this position. When the ramp is returned to the inoperative position the magnet 10 is de-energized and is returned by a helical spring (not shown) to the Fig. 1 position. The device may be a self contained unit including a transformer and/or rectifier. A stop 34, which may be adjustable controls the end position setting. Peg 20 may be a roller. The device may be used to control the discharge gate of a tilted-band or other conveyer, the operation of a plough, switch or points in conveyers or other tracks or the operation of flaps.
Patent GB-1113002-A (GB)
Title: Improvements in buffers or energy absorbers
Inventor: BAKER JOHN FLEETWOOD
IPC: B61K7/18
Filed: 1965-11-09
Abstract: 1,113,002. Railway buffers. CAMBRIDGE FENDER & ENGINEERING CO. Ltd. 7 Nov., 1966 [9 Nov., 1965], No. 47492/65. Heading B7L. A buffer comprises a rectangular-sectioned tubular casing member F secured to a fixed base member G and a buffer head member secured to a rectangular-sectioned tubular casing member J telescopable over the member F, a torsion bar A secured at one end at B against rotation in the buffer head and secured at its other end in a threaded sleeve D, the adjacent end of which engages a nut E secured to the casing F, whilst the other end of the sleeve D is rotatable relative to the associated end of the bar A, whereby when the buffer head approaches the fixed member the torsion bar is wound. Another torsion bar with its threaded sleeve and nut is provided at the side of the bar A, sleeve D and nut E, but the threads are oppositely wound to those shown.
Patent GB-1128159-A (GB)
Title: Improvements in or relating to terminal fittings for sheaths of push-pull cables
IPC: F16C1/26
Filed: 1965-11-10
Abstract: 1,128,159. Hose couplings. TELEFLEX G.m.b.H. 10 Nov., 1965 [5 Dec., 1964], No. 47640/65. Heading F2G. Additional wires 4a, 4b are fitted between the wires 2 forming the reinforcement of the sheath 1 of a push-pull cable and prior to the insertion of the end of the sheath into. a terminal fitting 3. The outer plastics layer 1a of the sheath is removed, and the fitting is secured to the sheath by hammering.