baber/WOPTO huggingface dataset:
Patent GB-1287372-A (GB)
Title: Acid-resistant materials
Inventor: DALMATOV VSEVOLOD YAKOVLEVICH
IPC: C09D1/04
Filed: 1970-11-12
Abstract: 1287372 Alkali metal silicate coatings TSENTRALNY NAUCHNO-ISSLEDOVATELSKY I PROEKTNO-EXPERIMENTALNY INSTITUT PROMYSHLENNYKH ZDANY I SOORUZHENY and NAUCHNO-ISSLEDOVATELSKY INSTITUT BETONA I ZHELFZOBETONA 12 Nov 1970 53859/70 Heading C3N [Also in Divisions C4-C5] An acid-resistant coating composition comprises (i) a water soluble potassium or sodium silicate glass, (ii) a filler, (iii) a hardening initiator and (iv) at least one of furfural, furfuryl alcohol and the furfural-acetone condensation monomer. The filler may be quartz sand, diabase powder or basalt, and the hardening initiator sodium fluosilicate. An acid-resistant pigment, e.g. TiO 2 , may be included. Preferred amounts are (i) 19-25% by wt., (ii) 37-71%, (iii) 1À5-3% and (iv) 0À2-5%. The composition may be mixed in a mortar or concrete mixer, and used to coat floors or line H 2 SO 4  containers.
Patent GB-1437680-A (GB)
Title: Gear rolling
IPC: B21H5/00
Filed: 1974-12-16
Abstract: 1437680 Rolling gear teeth LEAR SIEGLER Inc 16 Dec 1974 [28 Feb 1974] 54186/74 Heading B3M A die for finish-rolling the teeth in a workpiece gear has teeth approximately conjugate to those to be formed on the workpiece, but with its teeth having flanks divided substantially equally between ones having smooth uninterrupted surfaces and ones having parallel grooves extending between root and crest. Each workpiece gear tooth is arranged, where possible, to be contacted successively by a smooth and then a grooved flank. In one arrangement, Fig. 1, the die teeth T1 to T9 (shown in developed form and in section) each have one smooth flank and one grooved flank. Tooth T1, for example, has grooves G1 between lands L1, whereas tooth T3 has similar lands offset on a line 20 from those of T1. The grooves may have slightly rounded edges and may be provided in straight or helical die teeth. In an alternative form, successive teeth are either grooved on both flanks or smooth on both flanks. Or the die teeth may be divided into groups of two or more smooth teeth followed by the same number of grooved teeth.
Patent GB-1407038-A (GB)
Title: Magnetic recording and or reproducing system
IPC: H04N9/83
Filed: 1972-11-24
Abstract: 1407038 Colour television SONY CORP 24 Nov 1972 [26 Nov 1971] 54414/72 Heading H4F A composite colour television signal to be recorded on a magnetic medium (tape or sheet) is separated into its chrominance and luminance components. The chrominance component is frequency-converted to a low frequency and alternate lines of the frequency converted chrominance component are recorded. The colour bursts in the frequency-converted chrominance-component are separated and alternate bursts are increased in amplitude, the resulting burst signal being added to the luminance component to form a combined signal which frequency modulates a carrier to provide a signal for recording, which signal is at a higher frequency than the frequency-converted chrominance component. The recorded burst signal having succeeding bursts of different amplitudes is used for correct gating of the subsequently read-out chrominance component. The signal to be recorded is received at 11, Fig. 1, the chrominance component being frequency converted to a low frequency at 15 and alternate lines of the resulting signal being gated at 24 and passed to a mixer 23. The bursts in the frequency-converted chrominance component from 15 are separated in a burst gate 17 and fed to an amplitude modulator 20 which also receives a rectangular wave signal at half line frequency from generator 21, which causes the amplitudes of alternate bursts to be increased, the amplitude modulated bursts being added at 13 to the luminance component before being passed via a frequency modulator 22 to mixer 23. The rectangular wave signal from 21 also controls gate 24, so that the lines of the chrominance component passed by gate 24 coincide with the lines in which the bursts of increased amplitude are produced at 23. The recorded signal is played back and passed via an amplifier 25, Fig. 2, to high-pass and low-pass filters 26, 33 to separate the frequencymodulated signal and the chrominance component respectively. The chrominance component is frequency-reconverted to its original frequency at 34 and gated at 42 so that the recorded lines of the chrominance component are passed and any signals in the intervening lines resulting from crosstalk from adhacent magnetic tracks are blocked. The resulting intermittent chrominance component is made continuous using a one-line delay 45 and adder 46. The frequency-modulated signal is demodulated at 27, the bursts being separated at 35, the amplitude modulation of the bursts being detected at 44 and used to control, together with horizontal sync signals, the generation of a rectangular wave signal at 43 to control gate 42 to pass the desired signals. The bursts are also passed via an amplitude limiter 36 to control, via frequency converters 37, 39, constant frequency oscillator 38, and phase detector 41, the frequency of a variable frequency oscillator 40, to provide at the output of frequency converter 39 a signal of the correct frequency for the frequency-conversion of the chrominance component at 34.
Patent GB-1102539-A (GB)
Title: Improvements in or relating to electric signal integrating apparatus
Inventor: MARSHALL RICHARD CARLILE
IPC: G01N30/86
Filed: 1965-12-23
Abstract: 1,102,539. Selective signalling; integrating circuits. GEORGE KENT Ltd. 21 Dec., 1966 [23 Dec., 1965], No. 54634/65. Headings G4G and G4H. Digital integration of a continuously and widely varying signal 13, Fig. 2, e.g. from a gas chromatography system, is effected by applying the signal to an analogue integrator 10, 11, 12, by subtracting from the integrator, at regular intervals, fixed quantities of energy chosen in accordance with the integrator output at the instants of subtraction, and by totalizing the total energy so subtracted by applying pulses to the appropriate denominations of a counter 17. The output from the integrator is applied to three threshold circuits 18, 19, 20, having thresholds, for example of 1, 10, 100, or 1, 2, 4, which are sensed periodically and successively by clock-pulses. Each threshold circuit having an input above its threshold level causes, when sensed, a corresponding quantity of energy to be subtracted from the integrator and a one to be entered into the appropriate denomination of the counter.
Patent GB-1412586-A (GB)
Title: Wired broadcasting systems
IPC: H04N7/173
Filed: 1971-11-25
Abstract: 1412586 Wired broadcasting systems COMMUNICATIONS PATENTS Ltd 7 Nov 1972 [25 Nov 1971] 54822/71 Heading H4R A broadcasting system of the type disclosed in Specification 1,272,594 has associated therewith a central data processing station 24, e.g. a computer, which communicates with the subscriber stations 8-15 by feeding binary shift data signals into vision circuits at a frequency outside that used for the vision transmission and the signals are transmitted to every sub. scriber station via their respective twisted pair of high frequency conductors. The signals are modified at each subscriber station and are fed, doubled in frequency, via a buffer and the interstitial pair of control wires back to a programme exchange where the signals for groups of 28 subscribers are fed in tdm. manner back to the central data processing station 24, via continuously driven switches 27, 28 and cables 25, 26 connecting each programme exchange with the central data processing station. Each exchange has 12 groups of 28 subscribers and the cables 25, 26 may be 12 pair cables or each group of 28 subscribers may be allotted a carrier frequency on a single cable. A group identification label is added to each returning data message at the programme exchange before multiplexing. The arrangement may be used for billing purposes, for determining which programme a subscriber is watching, for educational purposes, i.e. to enable a subscriber to freeze the picture in a visual teaching system, &c. An overriding alarm facility to warn of damage to the cable in burglary or fire may be provided which operates automatically if a subscriber station fails to respond to a data message.
Patent GB-1410956-A (GB)
Title: Power directing system
IPC: B62D5/00
Filed: 1972-11-28
Abstract: 1410956 Power-assisted steering mechanism A G FONDA 28 Nov 1972 54864/72 Heading B7H [Also in Division G3] A power-assisted steering mechanism comprises an input member, an output member, gear mechanism operatively connecting the input and output members, power actuating means for displacing a reaction element of the gear mechanism to increase the movement of the output member in response to a movement of the input member, and power control means responsive to a movement of the input member for controlling the power actuating means. As shown, a manually operable input shaft 71 terminates in a worm 73 engaged through recirculating balls 77 with a nut 78 rotatably mounted in a rack 81 meshing with a sector gear  82 on a pitman shaft 83. So that the nut 78 can be displaced to a greater extent than corresponds purely to rotation of the worm 73, the nut 78 is rotated by an irreversible hydraulic or electric rotary actuator 75<SP>1</SP> connected to a shaft 75 which has a non-circular end portion 74 received in a non-circular portion 79 of the nut. Operation of the actuator 75<SP>1</SP> is controlled in response to relative rotation between an inner control member 97 which roates with the shaft 71 and an outer control member 96 which rotates with a gear 95 meshing with a gear 94 on a threaded member 92 engaging a local extension 91 of the rack 81. The pitch of the threaded member 92 is greater than that of the worm 73  so that total movement of the rack 81 is, for example, twice as great as would be produced solely by rotation of the input shaft 71, and the pitch may vary along the length of the member 92 to provide a varying amplification factor. The gear 94 is frictionally engaged with a hub 93 on the member 92 so that the gear can slip to permit manual operation of the mechanism in the event of power failure. The threaded member 92 may be moved axially with consequent rotation by an actuator 99 which may be controlled automatically in response to lateral acceleration, yaw velocity, or speed of the vehicle. In other embodiments, the reaction element displaced by the power actuating means is the fulcrum of a lever, a wedge, the annulus of an epicyclic gear train, the worm of a worm and nut gear, or the rack of a rack and pinion gear.
Patent GB-1202300-A (GB)
Title: Worm gear mechanism
IPC: F16H57/02
Filed: 1968-11-21
Abstract: 1,202,300. Gearing. BORG - WARNER CORP. 21 Nov., 1968 [18 Dec., 1967], No. 55400/68. Heading F2Q. A worm and gear mechanism 10 comprises an annular gear 12 rotatably fixed to an output shaft and provided internally with lateral grooves 22, a worm 13 mounted inside the gear from a worm mount 14 extending internally of a housing 11 surrounding the gear 12, the worm having a groove 31 around the external surfaces of the worm, and a passage connecting the ends of the groove 31, and balls 15 passing through the passage and around the groove 31, the grooves 22 being arranged to correspond with the groove 31 so that the balls transmit motion from the worm to the gear, the balls being retained in the groove 31 when passing therethrough by the grooves 22 and a retainer 40 mounted in the mount 28, rotation being transmitted from an input shaft 16 by suitable means (e.g. a gear on shaft 16 mating with a gear 45 mounted on the worm).
Patent GB-1484490-A (GB)
Title: Probe for use in a pneumatic tyre loss of inflation pressure warning arrangement
IPC: B60C23/02
Filed: 1974-12-31
Abstract: 1484490 Tyre deflation indication MICHELIN & CIE (COMPAGNIE GENERALE DES ETABS MICHELIN) 31 Dec 1974 [2 Jan 1974] 56174/74 Heading B7C An elongate flexible probe, for use in pneumatic tyre deflation indicating apparatus, comprises one end by which it can be suspended from a vehicle, the region of the other end comprising a material of low resistance to wear by abrasion so that, when the other end is rubbed along the ground, i.e. when a tyre is deflated, the state of an electric, alarm circuit, in which, in use, the probe is connected, is changed by making or breaking an electrically conductive path within the probe. In one embodiment, the path comprises an electric conductor 3, e.g. a copper wire, and the probe, which includes a reinforcing metal strip 2, is of rubber. In a second embodiment, two normally separated electrically conductive copper strips 22, 22<SP>1</SP> are embedded in rubber and reinforced by a fabric 24. In the latter embodiment, abrading of the rubber melts insulating material 23.
Patent GB-1331972-A (GB)
Title: Machine for harvesting beet
IPC: A01D25/00
Filed: 1970-11-30
Abstract: 1331972 Root crop harvester H VISSERS NV 30 Nov 1970 [3 Dec 1969 29 Oct 1970] 56790/70 Heading A1F A root crop harvesting machine is provided with at least two harvesting shares which converge rearwardly and which are mounted on a frame about an inclined axis lying in a fore-and-aft vertical plane in such a way that the shares may swing sideways to harvest a beet standing outside the row and are returned automatically by a castor action. In one embodiment (Figs. 7 and 8), the harvesting machine comprises a frame 102 mounted on links 133 of a vehicle 112 travelling in direction 114, and pairs 107 of integral, rearwardly converging shares 97 which are pivotable about axes 109. Above the shares 97 are a number of wheels 104 (driven via gearing 116, 120 and the vehicle p.t.o.) which each have tines 128 of resilient steel cable to engage the beet and convey them to conveyor wheels 130 which rotate in directions 129. Wheels 130 and tired wheels 113 above them (similar to those above shares 97) are driven so that beet are conveyed to a central belt 98 leading to storage. The cables 122 of wheels 113 may form a helical array to assist this effect. Three other embodiments are described, Figs. 1 and 2 (not shown) show a mounted harvester without conveying apparatus and having shares as described above. Figs. 5, 6 (not shown) show a trailed harvester with similar shares but with resilient scoop members (78) which carry the beet to a conveyer belt, Figs. 3, 4 (not shown) show a harvester having blades 29 which are attached to rods which are reciprocated by a crankshaft in a housing attached by a ball-joint to a tractor.
Patent GB-1451654-A (GB)
IPC: C08L75/04
Filed: 1973-12-11
Abstract: 1451654 Thermosetting urethane resins HOECHST AG 11 Dec 1973 [14 Dec 1972] 57324/73 Headings C3R and C3P Thermosetting urethane resins which contain carboxyl groups and masked isocyanate groups are manufactured by reacting a compound (a) which is a polyol/polycarboxylic acid condensate which contains alcoholic hydroxyl groups and carboxyl groups, has a M.W. of 300 to 10,000, a hydroxyl equivalent weight of 200 to 900 and an acid number of 30 to 150, based on carboxyl groups, and must be soluble in inert polar organic solvents with a masked isocyanate (b) which has been obtained by reaction of a polyisocyanate with a free isocyanate group and 1 to 5 masked isocyanate groups with a compound having alcoholic hydroxyl groups, a M.W. of 120 to 2000 and a hydroxyl equivalent weight of 60 to 500 and being either an ester of a fatty acid and a polyol containing 3 to 6 hydroxyl groups or a diol containing 3 to 8 carbon atoms between the terminal hydroxyl groups, preferably in an inert organic solvent at a temperature of 80‹ to 150‹ C., the amounts of components (a) and (b) being such that the mixture thereof, before reaction, contains 2 to 15% of masked isocyanate groups relative to the sun weight of (a) and (b), the end product containing 7À5% to 20% by weight of isocyanate groups (introduced in the preparation of component (b)) having an acid number from 30 to 120 and being completely soluble at 20‹ C. in ethylene glycol monobutylether at a weight ratio of end product to solvent of 1 : 1 and having a viscosity of 150 to 700 cP at 25‹ C. in that solution. Component (a) used in the examples is (1) the condensation product of linseed oil fatty acid, pentaerythritol, trimethylolpropane and phthalic anhydride, further reacted with phthalic anhydride (2) a resin obtained by first heating linseed oil fatty acid and maleic anhydride, followed by opening of the anhydride groups by reaction with water, mixing of the product with an ester obtained from wood oil, pentaerythritol and trimethylolpropane and heating, (3 and 4) a product obtained by heating a mixture of a styrene-maleic anhydride copolymer and an ester derived from isononanoic acid, trimethylolpropane and pentaerythritol. Component (b) is preferably the reaction product of toluene diisocyanate or hexamethylene diisocyanate masked with phenol or #-caprolactam with esters derived from trimethylolpropane, glycerol, pentaerythritol, hexanetriol, sorbitol or sucrose and linseed oil fatty acid, soya oil fatty acid, tall oil fatty acid, linoleic acid, elardic acid, castor oil fatty acid, ricinoleic acid, coconut oil fatty acid, pelargonic acid or isononanoic acid. The resins may be neutralized with ammonia or organic amines and thereafter may be diluted with water and used for electrophoretic lacquering.
Patent GB-1406850-A (GB)
Title: Fluid motor control apparatus
IPC: F15B11/05
Filed: 1972-12-13
Abstract: 1406850 Hydraulic control circuits CATERPILLAR TRACTOR CO 13 Dec 1972 [13 Dec 1971] 57580/72 Heading FIP [Also in Division F2] A control system for a hydrostatic transmission having a pump 14 supplying a motor or jack 11 through a manually controlled reversing and throttle valve 28 comprises forward and reverse automatic brake valves 53, 53 which throttle the motor or jack exhaust during over-run. In the neutral position of the valve spool 29, as shown, a pump supply line 22 is connected directly to an exhaust line 33 and the motor or jack supply and return lines 51, 51' are blocked to hold the motor 11 or jack stationary. Movement of the valve spool 28 right (or left) provides a throttled connection between the pump supply line 22, 42 and the motor or jack supply line 51 (or 51') for forward (or reverse) drive. The valve spool 29 additionally connects the motor or jack exhaust line 51' (or 51) to exhaust lines 55', 54' (or 55, 54) containing the brake valve 53' (or 53). During normal forward (or reverse) drive the brake valve 53' (or 53) is held open against the bias of a spring by pressure liquid supplied through a line 73' (or 73) from the motor or jack supply line 51 (or 51'). During motor or jack, over-run the pressure in the supply line 51 (or 51 ) drops and thus the pressure acting on the brake valve 53' (or 53) is reduced to permit the valve spring to move the brake valve to a position in which it throttles motor or jack exhaust for braking. A one-way valve 43 prevents liquid return from the motor or jack to the pump. High pressure relief valve 76, 76 and anticavitation valves 77, 77 are provided between the motor or jack supply and exhaust lines.
Patent GB-1450812-A (GB)
Title: Method for manufacturing composite materials
IPC: B29C53/00
Filed: 1973-12-12
Abstract: 1450812 Laminates KUREHA KAGAKU KOGYO KK 12 Dec 1973 [12 Dec 1972] 57674/73 Heading B5N A composite material is produced by interposing between a polyvinyl chloride sheet and a hardboard sheet a layer of foam material whose faces are covered by a dried film of a latex of a copolymer obtained by copolymerizing 65-96 parts by weight of vinylidene chloride, 5-35 parts by weight of a first vinyl comonomer having no unsubstituted carboxyl groups and 1-10 parts by weight of a second vinyl comonomer containing at least one unsubstituted carboxyl group, and bonding the superposed layers together by high frequency welding. The first comonomer may be vinyl chloride, acrylonitrile, methacrylonitrile, acrylic amide, methacrylic amide, vinyl acetate, vinyl propionate, an acrylic ester or a methacrylic ester, and the second comonomer may be maleic, fumaric or itaconic acid or an anhydride or halo ester thereof, acrylic acid or methacrylic acid. The latex of the copolymer may be applied to the foam layer by coating or immersion of the foam layer in the latex and the latex then dried at room temperature or in hot air. The foam material may be soft polyurethane foam or soft rubber foam.
Patent GB-1338179-A (GB)
Title: Naphthal fluoran compounds and their use in pressure sensitive copying paper
IPC: C09B57/00
Filed: 1971-12-13
Abstract: 1338179 Pressure-sensitive recording paper YAMAMOTO KAGAKU GOSEI KK 13 Dec 1971 [15 Dec 1970] 57725/71 Heading D2B [Also in Division C4] A paper sheet for use in pressure sensitive copying has applied thereto or included therein at least one fluoran compound of the formula: (wherein R 1 , R 2  and R 3  are each H, halogen or CH 3 ; R 4  and R 5  are each H, CH 3  or C 2 H 5 ; and R 6  is H, CH 3 , NH 2  or NHCOCH 3 ; and R 1  and R 2  together represent a fused-on benzene ring). Preferably the fluoran compound is dissolved in a solvent of low volatility, e.g. a chlorinated biphenyl, and applied to the sheet in encapsulated form, the sheet also having a solid acid on or within it. Alternatively a pressure sensitive copying set may be made from an upper leaf having an encapsulated solution of the fluoran compound applied thereto and a lower leaf having a solid acid on or within it. Suitable solid acids are acid clay, zeolite, bentonite, attapulgite and phenolic resins. The fluoran compounds develop colours varying from yellowish orange to black on reaction with a solid acid and have excellent light resistance after colour development.
Patent GB-1174060-A (GB)
Title: Improvements in or relating to Knitting Machines
IPC: D04B15/70
Filed: 1966-12-30
Abstract: 1,174,060. Knitting-machines. SILVER KNITTING MACHINE CO. Ltd. 30 Dec., 1966 [5 April, 1966 (2); 13 April, 1966 (2)], No. 58289/66. Heading D1C. A pattern mechanism for a hard flat-bed, machine comprising two pattern drums 1, 1' mounted one at each end of the carriage 3, which are reset by a pattern tape 14 mounted on the machine. The drums in turn control the needles on successive courses, and are rotated by gears 12 engaging a fixed track 11. Pivoted levers 5 are normally urged outwards so that projections 7 may engage the tape 14 mounted centrally of the needle bed. Lower projections 8 on the levers may rotate gear 21 and, via a gear train, wheel 17 which actuated a needle cam mechanism. When the carriage is moving to the left a pattern, previously set on drum 1' influences the needles. Once the drum has passed the tape a projection 31 (Fig. 6, not shown) mounted between the drums initiates the advance of the pattern tape. While drum 1 passes a pattern is set when the carriage moves right, drum 1 influences the needle but its . pattern remains undisturbed as it passes the tape which has not yet been rocked. Any projecting levers are re-set by a cam controlled slide 25.