baber/WOPTO huggingface dataset:
Patent GB-1279669-A (GB)
Title: Production of ethylene copolymers
IPC: C08F10/00
Filed: 1969-11-19
Abstract: 1279669 Ethylene-unsaturated silane copolymers BADISCHE ANILIN- & SODA-FABRIK AG 19 Nov 1969 [20 Nov 1968] 56626/69 Heading C3P Copolymers of 100 parts by weight ethylene units, 0À1 to 35 parts by weight of units of one or more unsaturated silanes CH 2  = CHSiR 1 R 2 R 3  or CH 2  = CHCH 2 SiR 1 R 2 R 3  where R 1 , R 2  and R 3  are H, C 1-12  alkyl, benzyl or tolyl and optionally up to 25 parts by weight of units of one or more further ethylenically unsaturated compounds, are prepared by copolymerization at 80‹ to 350‹ C. and 500 to 5000 atmospheres in the presence of a free radical polymerization initiator and optionally a polymerization regulator. Specified comonomers are vinyl alkanoates, acrylic and methacrylic esters, and acrylic, methacrylic, maleic and fumaric acids and amides. The initiator may be oxygen, and the regulator propylene. Examples describe the copolymerization of ethylene with (1) vinyl trimethyl silane in the presence of propylene and (2) allyl dimethyl silane, using oxygen as initiator.
Patent GB-1167349-A (GB)
Title: Improvements in or relating to apparatus for Controlling the Position of a Member.
Inventor: HAM PHILIP ARTHUR LAILEY
IPC: G05D3/12
Filed: 1966-12-19
Abstract: 1,167,349. Correspondence control systems. GENERAL ELECTRIC & ENGLISH ELECTRIC COMPANIES Ltd. Nov.17, 1967 [Dec. 19, 1966], No. 56638/66. Heading G1N. In a system for controlling the position of the plunger 1 of a steam valve, an error signal is formed by comparing a signal representing the actual position of the plunger with a signal 11 representing the required position and is amplified in an amplifier 12 energized by a unidirectional voltage derived from the output of the position-sensing means 2 whereby in the event of an open-circuit failure of the position-sensing means or of electric connections thereto said unidirectional voltage falls to zero and hence the signal fed to the electro-mechanical positioning means 13 either falls to zero or assumes a predetermined value such as to leave the plunger in a required safe position. As shown, a unidirectional actual position signal is derived from the difference in the alternating voltages induced in the secondary windings 6 of a rotary differential transformer 2 and the unidirectional voltage for energizing the amplifier 12 is derived from the sum of the alternating voltages induced in the secondary windings 6. A linear differential transformer having E and I cores may be used. The required position signal 11 may be scaled from the output of one or both of the rectifier circuits 15 to avoid inaccuracies due to variations in the alternating voltage applied to the primary winding 5 of the position-sensing transformer.
Patent GB-1137510-A (GB)
Title: Universal joint
IPC: F16D3/36
Filed: 1966-12-21
Abstract: 1,137,510. Universal joints. BENDIX CORP. 21 Dec., 1966 [23 Dec., 1965], No 57224/66. Heading F2U. A Hooke's joint, in an adjustable steering column, comprises balls 30, 32 press-fitted and locked in yoke arms 12, 18 and engaging partspherical seatings (46), (Fig. 3, not shown), in one part 44 of a screwed two-part intermediate member, the other conical or part-spherically faced part 58 of which, during assembly, is tightened against the balls, to radially preload the yoke arms 12, 18, after which the parts 44, 58 may be staked or welded together. The yoke members 10, 16 are bored at 38, 40 for the reception of a remote control cable 52 which, as shown, passes through a conical hourglass passage 50 in the intermediate part 44, or alternatively (Figs. 4 and 5, not shown), through a passage having two ends (70, 70a) each end being flared outwardly in a plane, the two planes being perpendicular to one another.
Patent GB-1291498-A (GB)
Title: Television signal conversion apparatus
Inventor: STEIGER WERNER
IPC: H04N11/22
Filed: 1969-11-24
Abstract: 1291498 Colour television EIDOPHER AG 24 Nov 1969 [26 Nov 1968] 57444/69 Heading H4F [Also in Division G5]  In a colour television receiver, each frame composite colour television signal containing n simultaneous component signals is temporarily recorded on tape and reproduced n times at n times the recording speed so that each colour component of each frame can be sequentially applied to a black-and-white screen, e.g. a modulated oil film type projector, with which is associated a rotating colour filter. A tape 31 passes helically round two drums 33, 34 the ratio of whose diameter is 1 : 3. A head 5 rotates at the frame frequency within drum 33 and records the signal; subsequently, three heads 6, 7, 8 attached to the same rotor 24 within the drum 34 each read the signal in turn at three times the recording speed and pass the three composite signals (sequentially) to a decoder (16, 17, Fig. 1, not shown) which selects a different colour component in turn, e.g. R, G and B, and passes it to screen (18). Alternatively (Fig. 4, not shown), the decoding (161) happens first, the three component signals R, G and B are then simultaneously recorded on separate tracks by a triple (recording) head (53), and the reading heads (6, 7, 8) are arranged to read the appropriate track sequentially. The audio signals are likewise recorded, at 46 and read, 47, after the same time-lag. The tape 31 is a long endless loop (31s, Fig. 2, not shown) it is braked (by 43), erased (by 45), and driven by shaft 27, Fig. 3, before and after being guided round the drums 33, 34 by deflecting posts 41, 42 and guide pins 49. The drive motors for both the heads and tape, 21 and 28, are servo-controlled. Sensors 25, 26 enable the speed (at 22, 29, Fig. 1, not shown) and phase (23, 30) to be controlled in relation to video sync. signals which are separated (at 4 and 12). Phase control of the tape may alternatively be effected by using separate head 50, 51, Fig. 3, to record and read the separated sync. signals on the tape. The circuit (Fig. 1, not shown) also includes demodulation of received signal (2); modulation (3) demodulation (10) and amplification (9) for the temporary recording; and phase correction (11, 14) using reference pulse generator (32) and oscillator (15).
Patent GB-1201960-A (GB)
Title: A means for operating the control of the valves of air pipe line couplings of railway vehicles
Inventor: BERWERNICK GUENTER
IPC: B61G5/08
Filed: 1967-12-18
Abstract: 1,201,960. Air valves for rail vehicle couplings. MINISTERIUM FUR VERKEHRSWESEN. 18 Dec., 1967 No. 57483/67. Heading B7T. [Also in Division F2] A valve (not shown) in the air pipe coupling of an automatic central buffer coupling of a railway vehicle, is operated through a coupling device comprising a hollow shaft 1 connected through a rod linkage 11 to the valve. This shaft is selectively coupled to a bush 14 rotatably mounted on it, by a pin 12 engaged in slots 2 in the shaft and normally biased by two springs 13 to a mid position in which the pin engages the bush. Two hand levers 5 positioned on opposite sides axially of the bush 14, i.e. on opposite sides of the vehicle, are connected through links 7 to the pin 12 so that the coupling can be disengaged from either side and the valve then operated by rotating the shaft through the lever 5. On a coupling operation of two vehicles, a Bowden cable is moved by a trip mechanism (not shown) to rotate the bush 14 and open the air valve. To prevent brake operation during shunting, the lever 5 is held in one of two grooves (10) in a stop (9) in disengaged position, Fig. 5 (not shown). In another position the lever is held by a spring-loaded pawl 6.
Patent GB-1426069-A (GB)
Title: Truck unloading apparatus
IPC: B60P1/64
Filed: 1973-12-13
Abstract: 1426069 Unloading vehicles T TOYOOKA 13 Dec 1973 57866/73 Headings B8E and B8Q [Also in Division B7] A vehicle has a chassis 7 which is tippable from the transport position, Fig. 1, to an unloading tipped position, Fig. 3. The chassis 7 has a suspension spring 3 normally secured to the rear axle housing 2 as by a pin actuated by an electromagnetic device or air cylinder but connected with a pivotal bracket 4 by a supporting beam 5. To tip the chassis the securing pins are released and the front wheels are braked so that upon driving the rear wheels 6 by the telescopic drive shaft 1 the axle housings 2 slides along the beams 5 pivoting the bracket 4. In the Fig. 3 position the beams 5 bow to lower the end of the chassis to facilitate unloading the cross-section of the beams 5 being such as to allow this bowing but to resist sideways bending which could allow the axles to become misaligned. In the embodiment of Fig. 5, a chain 8 secured at its ends to the axle housing 2 through pulley 9-12 drives, when the housing slides, a dog 14 to push a container 15 off the chassis. The embodiment of Fig. 8 has a dump body 19 which is arranged to be tipped by straightening linkwork 18 as the axle housing 2 slides and pulls on a chain or wire 16. In this embodiment the beams 5 are of a section designed not to bow but to support the chassis horizontal at all positions of the housing 2. In some embodiments the chassis is in two hinged parts which can be unlocked to allow the rear end to drop.
Patent GB-1279890-A (GB)
Title: Improvements in tube driving installations and apparatus therefor
IPC: E21D9/00
Filed: 1970-12-07
Abstract: 1279890 Boring earth and rock GEWERK SCHAFT EISENHUTTE WESTFALIA 7 Dec 1970 [24 April 1970] 58009/70 Addition to 1244924 Heading E1F [Also in Division B8] A tube driving installation includes an intermediate pressing station 7 between two tube sections 2, 3, and a scraper-chain conveyor 9 powered by a displaceable drive 12 for removing debris from a working face 8. The scraper chain is carried in multi-part channels which are telescopically extendable and retractable in the region of the pressing station 7. The station 7 comprises peripherally arranged hydraulic piston and cylinder units. A main pressing station 4 acts on the section 3 via a thrust ring 6. The stations 4 and 7 are actuated alternately to advance the section 2 and then the section 3 in turn, the channels telescoping to compensate for the change in length of the installation. The chain is tensioned by a piston and cylinder brace 13 acting on the drive 12 and connected with the hydraulic system of the station 7, and is lengthened after each sequential advance of the stations 7 and 4, by twice the length of the advance. When the station 4 reaches the end of its stroke, the pressure units are retracted and a further tube section is lowered into position. Two or more intermediate pressing stations may be provided.
Patent GB-1411229-A (GB)
Title: Colouring of aluminum and its alloys
IPC: C23C22/66
Filed: 1972-12-15
Abstract: 1411229 Colouring aluminium surfaces C V SUBRAMANIAM 15 Dec 1972 [15 Dec 1971] 58075/72 Heading C7U Al or an alloy thereof is coloured by reacting with an aqueous solution (pH 8 to 13) at 75 to 200 F containing 0.1 to 50 wt per cent of a material containing basic hydroxyl ions, wherein fluoride ions are not present. The process comprises (1) clean the surface in an aqueous soap solution, (2) alkali etch in NaOH, KOH, tetraethyl ammonium hydroxide, aminohydroxy compounds or quaternary salts, (3) water rinse, (4) neutralize with acid, e.g. oxalic, picric, citric, sulphophthalic, sulphanic, maleic, H 2 SO 4 , HNO 3 , HCl or perchloric, (5) water rinse, (6) alkali etch, (7) water rinse, (8) application of colouring solution, (9) water rinse, (10) acid rinse, (11) water rinse, (12) coated with plastics. The colourant may be alcohols, amines, aminohydroxy compounds, aldehydes, quinones, ethers, and carboxylic acids e.g. formic or acetic, and many examples are described. Other materials may be added, e.g. picric acid, esters, and ketones.
Patent GB-1298064-A (GB)
Title: Improvements in electrostatic spraying equipment
Inventor: PATRICK RUDOLPH ANASTAS
IPC: B05B5/10
Filed: 1968-12-03
Abstract: 1298064 EHT generators CONTROSION ELECTROSTATIC Ltd 28 Nov 1969 [3 Dec 1968] 58233/68 Heading H2F An H.V. D.C. generator for use in electrostatic spraying equipment includes a rectifying multiplier provided with means for switching the input to either end whereby the polarity of the D.C. output can be reversed. The input is preferably 50 kHz at 500-600 v. from a pushpull valve circuit which is stepped up by a transformer to 8-10 kv., the output of the multiplier being 120 kv. adjustable by varying the gain of the valves.
Patent GB-596874-A (GB)
Abstract: 596,874. Hydrometers. BLAKE, T. O. April 6, 1945, No. 8565. [Class 97 (iii)] A hydrometer comprises a displacer, a support and a chain connecting them, the chain being of such a length as throughout the range of measurement to hang in a free loop between the displacer and the support and to hold the displacer wholly immersed in the liquid under test. In one form, Fig. 1, a graduated displacer 2 is attached by a chain 3 of fixed length to a support having a ring 5 to provide the datum for co-' operation with the graduations. In-another form the support which is fixed to the edge of the vessel is tabular 'and carries a wheel constituting an adjustable support for 'the chain. The wheel, which is calibrated, 'is turned to lover or raise the chain until a mark on the displacer co-operates with the datum on the ring. 'In another form the displacer is formed with a' longitudinal bore 'which receives a scale rod supporting one end of the chain.
Patent GB-1291597-A (GB)
Title: Improvements in compass systems
Inventor: BAKER DONALD HENRY
IPC: G01C17/30
Filed: 1969-12-09
Abstract: 1291597 Flux valve compasses SPERRY RAND CORP 9 Dec 1969 [26 Dec 1968] 59928/69 Heading G1N In a flux-valve compass, direct currents Ia, Ic are fed back to the windings 13, 15 on two of the legs of a three leg flux valve 11 to substantially cancel respective components of the Earth's magnetic field. As shown, in Fig.1, respective direct current cosine and sine output signals are derived from the flux-valve. Operational amplifiers 36, 37 and their associated resistance networks derive from the cosine and sine signals appropriate feedback currents Ia, Ic in accordance with a theory explained in the Specification. In another arrangement, Fig.4 (not shown), a locked transolver (54) is used to derive cosine and sine signals which are then demodulated, smoothed and amplified. The cosine output signal is fed back to point A and the sine signal is fed back, through respective resistors, to points A and C.
Patent GB-1369025-A (GB)
Title: Paint or varnish compositions
IPC: C09D5/14
Filed: 1971-12-29
Abstract: 1369025 Hydroxyphenones SERDEX-SOC D'ETUDES DE RECHERCHES DE DIFFUSION ET D'EXPLOITATION 29 Dec 1971 [4 Jan 1971] 60379/71 Heading C2C [Also in Division C3] Hydroxyphenones of formula  in which R is hexyl or cyclohexyl are prepared by the Friess rearrangement in which phenolic esters are converted to the corresponding phenones in the presence of a catalyst, e.g. BF 3 . Phenol (1 mole) is reacted with cyclohexyl carboxylic acid (1 mole) at 80-90‹ C. for 2 hours in the presence of BF 3  to give a product which recrystallizes from an ammonia solution at pH and has a M.Pt. of 119‹ C.
Patent GB-1243154-A (GB)
Title: Apparatus for coating a support web with thermoplastic
IPC: B05D1/26
Filed: 1969-12-10
Abstract: 1,243,154. Laminating apparatus. J. M. VOITH G.m.b.H. 10 Dec., 1969 [10 Dec., 1968], No. 60385/69. Heading B5N. [Also in Division D1] A web 9 is coated with a thermoplastic from a nozzle 6 and a second web 37 is bonded thereto during passage through the nip between a pressure roll 7<SP>11</SP> and a cooling roll 8<SP>1</SP>, the pressure roll bearing 16<SP>11</SP> being pivotally mounted on a support member 14<SP>11</SP> about an axis lying on a plane through said nip and tangential to said rolls and the support member being pivotal about the cooling roll axis 13. A second roll 7<SP>1</SP>, acting as a lift-off guide roll, is similarly mounted on a second support member 141 pivoted independently of the first such member about the axis 13. The resulting laminate partially wraps the cooling roll and passes over said lift off roll 7<SP>1</SP>. Support members 14<SP>1</SP> and 14<SP>11</SP> each carry a tentering roll, a guide roll and an electronic treatment device 26<SP>1</SP> and 26<SP>11</SP> upstream of the nip, said device comprising high tension, rotating spark electrodes. The positions of rolls 7<SP>11</SP> and 7<SP>1</SP>, which may have rubber surfaces, are controlled by hydraulic servomotors 19<SP>11</SP> and 19<SP>1</SP> and those of support members 14<SP>11</SP> and 14<SP>1</SP> by endless chains mounted in guide rolls (39 and 40, and 41 and 42, Fig. 4) and may be adjusted so that either roll 7<SP>11</SP> or 7<SP>1</SP> serves as the pressure roll and the other as the lift off roll. The position of the nozzle 6 is horizontally adjustable.
Patent GB-1299384-A (GB)
Title: Improved furnace apparatus for bending glass plates for windshields or the like
Inventor: ARTAMA ARVI
IPC: H05K1/09
Filed: 1969-12-12
Abstract: 1299384 Glass bending furnaces A ARTAMA 12 Dec 1969 [21 Aug 1969] 60881/69 Heading C1M [Also in Division F4] An electrically heated furnace through which glass plates to be bent to the shape of a form (not shown) are conveyed on wheeled form carriers 8, comprises successive preheating chambers 1, 2, main heating chamber 3, slow cooling chamber 4 and induced draught air cooling chambers 5-7, a control space 17 being provided between chambers 2 and 3. The form carriers 8 may also be provided with electrical heating means. When a form carrier 8 in preheating chamber 2 is to be loaded into main heating chamber 3, motor 21 is operated to pull the wheeled preheating chambers 1, 2 along runways in the floor towards the chamber 3 by way of crank drive mechanism 22-24 so closing the space 17. A pawl 30 mounted on the chamber 1 pushes against the form carriers in the preheating chambers 1, 2 to move them along with these chambers. The leading carrier in preheating chamber 2 eventually engages with the slidable pawl 37 of a similar lower crank drive mechanism 33-36 which transports the carriers through the fixed chambers 3-7 whilst the preheating chambers 1, 2 are pushed back to recreate the space 17 and allow a further carrier to enter the preheating chamber 1. The carrier introduced in chamber 3 pushes each carrier in the chambers 3-7 one stage further along and discharges a cooled carrier from chamber 7 past brake 44 to be unloaded and then recycled. The heating and cooling times and temperatures may be manually or programme controlled. Cooperating rolls and rails (12, Fig. 3, not shown) or grooved rails are used to guide the carriers through the chambers. An hydraulic drive may replace the crank drive mechanisms. A safety device is provided to stop movement of the chambers 1, 2 if the space 17 is obstructed. The chambers are provided with a steel framework and are covered with sheet-steel.
Patent GB-1285976-A (GB)
Title: Diversity switching for digital transmission
Inventor: SWAN GEORGE HENRY
IPC: H04L1/06
Filed: 1969-12-16
Abstract: 1285976 Diversity radio systems WESTERN ELECTRIC CO Inc 16 Dec 1969 [19 Dec 1968] 61113/69 Heading H4L Diversity reception apparatus for digital data in which one or the other of two received signals is selected according to their detected error rates comprises means for compensating for any "jitter" in the relative times of arrival of corresponding bits in the two signals received at 12, 12<SP>1</SP>. The signals on each channel, are read into cells 15a &c. and 15<SP>1</SP>a &c. in cyclic sequence, and the channel selected for utilization at 50 by unit 11 has its input clock pulses (derived from the input signal at 18) used for readout of data from both sets of cells. Thus, once synchronization of the outputs has been established by comparator 30, this synchronization is maintained, the number of bits held in the idle memory (in this case 10<SP>1</SP>) varying with the jitter. The comparator 30 acts by enabling AND gate 33 when the two outputs are unequal, and this suppresses a read-out pulse for the idle memory. If the idle output was in advance of the selected output this acts to restore synchronization, otherwise the action continues until the read-out pulses cycle into the correct relative position. In order to allow for correction of a maximum jitter amplitude in either direction, the number of bits stored in the cells of a channel should not differ greatly from half the number of cells, and an arrangement is described which detects a large difference from this number and alters the readout rate accordingly. Inhibition of readout on the idle channel may be stopped when one channel shows a high error rate.
Patent GB-1234970-A (GB)
Title: Bearing bush
IPC: F16C33/18
Filed: 1968-12-24
Abstract: 1,234,970. Drying clothes. BLACKSTONE CORP. 24 Dec., 1968 [11 Jan., 1968], No 61478/68. Heading F4G. [Also in Division F2] A clothes dryer drum 20 is mounted by means of a bearing bush 24 comprising a felt mat impregnated throughout with polymerized lacquer and a dry, finely divided particulate lubricant, such as graphite.
Patent GB-1256170-A (GB)
Title: Improvements in and relating to apparatus for tuning radio receiver circuits
Inventor: NILSSEN OLE KRISTIAN
IPC: H04N5/44
Filed: 1969-12-23
Abstract: 1,256,170. Push-button tuning of radio receivers. MOTOROLA Inc. 23 Dec., 1969 [3 Jan., 1969], No. 62599/69. Heading H3Q. An electronic tuning system for radio receivers comprises a first tuning device 148 (e.g. manual) capable of providing a variable output voltage, a plurality of further tuning devices 112, 112a also capable of providing variable output voltages and a switching circuit for connecting the output voltage of one of the tuning devices to a voltage variable capacitor e.g. 14, 20, 31 in the tuned circuit stages of the receiver and a comparison circuit 80 for comparing the setting of the selected tuning device 112 or 112a with the setting of the first tuning device 148. Potentiometers 120, 120a and 145 may be provided to obtain the desired output voltage. The switching circuits comprise ONOFF transistors 116, 114; 116a, 114a; and 150, 152 coupled to a supply source 130 via pushbuttons 100, 102 and 110. A station is manually tuned by depressing button 110, turning transistor 150 off and turning transistor 152 on to couple the output voltage from tuning potentiometer 145 via diode 154 and resistors 65-67 to the varactors 14, 20 and 31. Diodes 156c and 156d keep transistors 114a, 114 turned off. Similarly when buttons 100 or 102 are pressed, the output voltage from the associated tuning device 112 or 112a is fed to the varactors and the voltages from the potentiometers of the other tuning devices are uncoupled from the varactors. To obtain a tuning on potentiometers 120 or 120a corresponding to that obtained in the potentiometer 145 of the manual tuning device a comparator 80 is used which includes an indicating device 85 operating when the applied voltages are unequal. An alternative embodiment (Fig. 2, not shown) has the potentiometers 120, 120a and 145 in the collector circuit of the ONOFF transistors. An alternative embodiment of the comparator (Fig. 3, not shown) has two indicating devices 85, 95 one of them lighting up when the tuning voltage from one of the tuning devices is lower or above the tuning voltage from the manual tuning device 148. The tuner 50 may have a separate B<SP>+</SP> supply or a priority circuit including a switch 168, a capacitor 162 and resistor 164 used to connect one of the tuning devices to the varactors when the supply is just turned on. Once capacitor 162 charges up to the potential of source 130, any of the desired tuning circuits may be brought into operation by pressing the corresponding pushbutton.