baber/WOPTO huggingface dataset:
Patent GB-1232202-A (GB)
IPC: H03J3/18
Filed: 1967-08-14
Abstract: 1,232,202. Tuning arrangements. PLESSEY CO. Ltd. 1 Aug., 1968 [14 Aug., 1967], No. 37289/67. Heading H3Q. A tuned circuit TC1 has a voltage variable capacitor V D1 , V D2 , a potential divider RV1, RV2 or RV3 for applying a voltage to the voltage variable capacitor, diode means D1, D2 connected in series with each end of the potential divider and a tuning voltage is applied across the free ends of the diode means D 1 , D 2 . Three potential dividers RV1, RV2 and RV3 supply tuning voltages to similar tuning circuits only one of which, TC 1  is shown, which include varactor diodes V D1 , V D2 . A diode D 2  in the tracking network is forward biased and with no tuning voltage V in  applied the voltage across each diode D 1 , D 2  is arranged to be - # (which is the internal junction potential of the varactor diodes). This voltage - # occurs at the outputs V v1 , V v2 , V v3  of the potential dividers Rv and is independent of the tapping settings. The diode D 1  which may be replaced by two diodes in series is forward biased by the input tuning voltage V in . In a modified tracking network (Fig. 2, not shown), a Zener diode (D 2 ) is included in series with diode D 1  so that the tuning voltage V in  is offset to allow two groups of tuned circuits to be tuned with different voltage ranges by the same input tuning voltage V in . In a modification of this the Zener diode can be replaced by a resistor (R 3 , Fig. 3, not shown), and a reference voltage (V REF ) may be applied to an end of the potential dividers via a resistor (R 4 ). The circuits compensate for temperature drift and each tuning circuit may include a single varactor diode by replacing either of the varactor diodes V D1 , V D2  with a fixed capacitor.
Patent GB-1232900-A (GB)
IPC: A23F5/04
Filed: 1969-09-23
Abstract: 1,232,900. Coffee. PROCTOR & GAMBLE CO. 23 Sept., 1969 [24 Sept., 1968], No. 46841/69. Heading A2B. Roast Robusta coffee of improved flavour is obtained by charging green Robusta coffee beans having a moisture content of 8-14 wt. per cent. and a Hunter Colour 'L' scale value of 39-42 to a steam roasting zone where they are exposed to saturated steam to obtain in the zone a partial steam pressure of 90-200 p.s.i.g., a steam temperature of 330-390‹F., and a bean moisture content of 15-35 wt. per cent., said conditions being maintained for 2-12 minutes to roast the beans to a Hunter Colour 'L' scale value of 22-33, and then stopping the roasting by quickly releasing the pressure and conveying the beans to a recovery zones, the thus partially roasted beans being then changed to a post-roasting zones where they are exposed to air at 375-1000‹F. for 7.5-30 minutes to obtain a surface temperature on the beans of 325-500‹F., a moisture content of the beans of 2-5 wt. per cent., and a final Hunter Colour 'L' scale value of 18.5-26, 40-90% of the scale value colour change occurring in the steam roasting step and the remainder in the post roasting step.
Patent GB-1250240-A (GB)
IPC: B29C49/22
Filed: 1969-03-26
Abstract: 1,250,240. Blow-moulding; labelling. E. LANGECKER. 26 March, 1969 [5 Sept., 1968], No. 15727/69. Heading B5A. [Also in Division B8] A label is applied to a hollow article during blow-moulding, the label having a discontinuous coating thereon to provide air spaces between the label and hollow article, the coated area preferably being smaller than the uncoated area forming the air space. The coating may be applied in strips, either horizontal or vertical, or dots, arranged in staggered or aligned rows or in intersecting lines and may form a continuous peripheral portion. The coating material may be sealable, adhesive or weldable. The label may be held in the mould by means of suction. The mould may have a peripheral groove surrounding the edge of the label. The label may be coloured and/or printed.
Patent GB-1251234-A (GB)
IPC: G06E3/00
Filed: 1968-11-13
Abstract: 1,251,234. Pulse echo distance-measuring. COMPAGNIE FRANCAISE THOMSON HOUSTON-HOTCHKISS BRANDT. 13 Nov., 1968 [14 Nov., 1967], No. 53912/68. Heading H4D. In a pulse Doppler radar or sonar the intermediate frequency output S(t) is rectified to intensity modulate a transducer e.g. cathode-ray tube 10 the deflexion of the beam of which is controlled by a sawtooth triggered in synchronism with the transmitted pulse and producing non-coherent light, a transparency P 2  carries a pattern of Doppler shifted optical signal sequences and is spaced from the screen of tube 10 by a distance F, Fig. 3 (not shown), an optical system 20 of focal length F focusses the cathoderay tube light as influenced by transparency 2 on to a plane a distance F from the optical system and an electro-optical sensor (e.g. a mosaic of photodiodes or a vidicon tube) 3 with a scanning synchronized with the cathode-ray tube beam deflexion produces a final output signal; according to the invention optical or equivalent beam-splitting is employed in the cathode-ray tube section of the system. The " correlation " plane P 3  affords positions of peaks of light which represent the range and speed of a target. The beam-splitting arrangements described are (i) rapid and cyclic beam displacement in a single-gun cathode-ray tube, Fig. 9a (not shown), (ii) a set of mirrors, Fig. 9b (not shown), (iii) an optical fibre arrangement, Fig. 9c (not shown), and (iv) a lens system, Fig. 9d (not shown).
Patent GB-1258042-A (GB)
IPC: F16H3/091
Filed: 1967-10-10
Abstract: 1,258,042. Variable speed gears. R. KNOWLES. 3 Jan., 1969 [10 Oct., 1967], No. 46212/67. Heading F2D.  A transmission comprising two gear-boxes 18, 52 in series (e.g. one 18 nearer the input 2 providing three overdrive ratios and direct drive and the other 52 providing direct drive and three step-down ratios) is controlled by a single lever (e.g. so that when gears of either gear-box are transmitting load, those of the other gear-box are unloaded). The ratios are provided by five shift forks, the first moving a gear into mesh with gears 80 and 74 for reverse ratio, a second moving gears 80 and 74 into mesh for first ratio and moving the gear 80 to clutch a gear 78 to the output shaft 54 for second ratio, a third 100 sliding a sleeve 60 to clutch to the shaft 54 a gear 76 for third ratio and a shaft 16 for fourth ratio (direct drive), a fourth 44 clutching to the shaft 16 the input 2 for direct drive and a gear 20 for fifth ratio, and the fifth 46 clutching to the shaft 16 gears 22 and 24 for sixth and seventh ratios.
Patent GB-1259189-A (GB)
IPC: C11D7/22
Filed: 1969-04-24
Abstract: 1,259,189. Treatment of photographic hydrophilic colloid layers. EASTMAN KODAK CO. April 24, 1969 [April 29, 1968], No.21051/69. Heading G2C. A method of treating a photographic water permeable hydrophilic colloid layer immediately before drying comprises rinsing the said colloid layer with an aqueous solution of at least one compound containing one alkoxypoly (ethyleneoxy) siloxane group and one to four methylsiloxyl, ethylsiloxyl and/or mixed methyl- and ethyl-substituted siloxyl groups, and containing from 10 to 15% by weight of silicon. More than one such compound may be used and the compounds preferably have an average molecular weight of from 300 to 1000. The colloid layer may be a stratified water-permeable hydrophilic colloid layer and the siloxane preferably contains only (A) one group of the formula:- and (B) from 1 to 4 groups of the formula:- wherein a is 0 to 2; b is 2 to 3; R is methyl or ethyl; R<SP>1</SP> is alkyl containing 1 to 4 carbons; m is 2 to 4; n has an average value of 4 to 14; p has an average value of 0 to 5; the ratio of n:p is at least 2:1; n + p has a value from 4 to 17; the alkoxypoly (ethyleneoxy) group is attached to the Si atom of the first-written formula through at least two carbon atoms of the CmH 2 m group; and the -CmH 2 m (OC 2 H 4 ) n (OC 3 H 6  ) p OR<SP>1</SP> group make up from 57À5 to 72À5 average weight per cent of the total structure. In the examples the siloxane has the formula:- (see Example I of U.S.A. Specification 3,299,112). By means of this method surface defects due to water-spotting are avoided with no apparent detrimental effects, even in perforated colour film products.
Patent GB-1264554-A (GB)
IPC: G02B13/04
Filed: 1969-05-14
Abstract: 1,264,554. Wide angle objectives. NIPPON KOGAKU K.K. May 14, 1969 [June 5, 1968], No.24625/69. Heading G2J. A wide angle lens comprises a front divergent lens group consisting of a cemented positive meniscus doublet L 1 , negative menisci L 2  and L 3 , a cemented positive triplet lens L 4 , and a negative meniscus L 5  and a rear convergent lens group consisting of a cemented positive doublet lens L 6 , a cemented negative doublet lens L 7  and positive menisci L 8  and L 9 , the groups being separated by a diaphragm, and the whole lens fulfilling the following conditions:- where R denotes the radius of curvature of the surface of an element and d the axial thickness of a lens or its spacing from another lens. Optical data for 1 example is given.
Patent GB-1265714-A (GB)
IPC: C30B1/10
Filed: 1969-03-31
Abstract: 1,265,714. Ferrite monocrystais. AGENCE NATIONALE DE VALORISATION DE LA RECHERCHE. 31 March, 1969 [4 April, 1968], No. 16787/69. Heading H1H. [Also in Division C1] Ferrite monocrystals having a particle size of up to 10<SP>4</SP> microns are produced by heating, at 1345-1385‹ C. in an atmosphere of 5% oxygen and 95% nitrogen, a compressed finely divided mixture of the polycrystalline material, or a mixture which produces the polycrystalline material on heating, and a flux in a quantity insufficient to cause noticeable melting. Heating may be by passage through a furnace having a temperature gradient. The material may be manganese or nickel/cobalt ferrite. The flux may be barium, boron or lead oxide.
Patent GB-1266005-A (GB)
IPC: H03F3/345
Filed: 1969-07-16
Abstract: 1,266,005. F.E.T. amplifiers; microphone circuits. R.C.A. CORPORATION. 16 July, 1969 [23 July, 1968], No. 35847/69. Headings H3T and H4J. In an amplifier having a plurality of stages 110 1 , 110 2  ... 110 n  connected in cascade, each stage consists of a common source insulated gate F.E.T. 121, 114 which has drain load impedances 120, 116, a self-biasing means including a feedback element 140 is coupled from the output to the gate of the transistor 121 in the first stage and the load impedance of a stage 110, and the immediately succeeding stage 110 2  consist of a respective insulated gate F.E.T. 120, 116 2  each adapted to receive an input signal e 1 , e 2  such that the stage 110 2  acts in common source mode for signals applied to stage 110 1  and in source follower mode for signals applied to stage 110 2  and the stage 110 2  has a unity voltage gain with respect to signals received at the gate electrode of its associated transistor 114 2 . The amplifier is otherwise substantially the same as that disclosed in Specification 1,157, 759 (Fig. 1, not shown). The output 115 2  is the aljebraic addition and accomplishes signal subtraction or difference of e 2 -e 1 . The gains in a given direction about the closed loop of stages increases as a function of their removal from the unity gain stage to a maximum at the stage or stages most remote from the unity gain stage within the closed loop. The stage gains may be symmetrical with respect to the unity gain stage in either direction around the loop.
Patent GB-1289168-A (GB)
IPC: B23Q9/00
Filed: 1969-12-10
Abstract: 1289168 Cutting by fusion VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY I PROEKTNY INSTITUT TEKHNOLOGII KHIMICHESKOGO I NEFTYANOGO APPARATOSTROENIA 10 Dec 1969 60258/69 Heading B3V An apparatus for cutting a hole in a member 26 having a curved surface comprises a gas flame or plasma arc cutter 10 and followers 17 adapted to follow the curvature of the member 26 and vertically move the cutter 10 to maintain it at a uniform distance from the surface. The cutter 10 is mounted on a carriage 7 which is displaceable along guides 5, 6 mounted on a rotatable wheel 3. A slide 15 rotatably mounted on the carriage 7 is slidable in a groove 14 of a member 13 which is movable along guides 11. Profiling cams 17 are mounted in sleeves 16 on the member 13 and are pivotally connected by pins 19 to a rod 18 along which a block 21, connected to the cutter 10, is slidable. In operation, the apparatus is fixed by magnets 27 to the member 26, the carriage 7 positioned on the guides 5, 6 and the wheel 3 rotated by a drive 4 to cause the carriage 7 and cutter 10 to rotate, the member 13 reciprocating in the guides 11 as they do so. As the member 13 is moved, the cams 17 follow the profile of the workpiece 26 so that via the rod 18 the cutter 10 is vertically moved to maintain the distance from the workpiece surface constant. After forming the hole, the cutter 10 is inclined along a groove 25 in a bracket 9 and the wheel 3 rotated again so as to chamfer the cut edge. The surface 26 may be cylindrical, conical or oval.
Patent GB-1296320-A (GB)
IPC: G01M3/00
Filed: 1971-04-19
Abstract: 1296320 Detecting leaks in buried pipes ELF UNION 19 April 1971 [17 April 1970] 25542/71 Heading G1A Leaks in a buried pipe for transportation of fluid are located by passing through the pipe a volume of fluid 12 in which is dispersed a tracer containing a high-energy y-emitter, rinsing the pipe behind the volume, and passing through the pipe a detection piston 20 which measures continuously both displacement along the pipe and radio-activity and makes a record of the displacement each time the activity within the pipe exceeds a predetermined count-rate threshold. The movement through the pipe of the flushing volume 18 and a scraper piston 16 clear the inner walls of substantially all the tracer. Hence only tracer that has leaked out of the pipe into the surrounding earth will produce a large-scale detector response. The measuring piston 20 includes distancemeasuring Fig.2 (not shown) and activitymeasuring Fig.3 (not shown) channels. The odometer wheel 22 has a magnetized portion on its periphery and provides a pulse for each revolution. These pulses are supplied via a memory device (32) and an inhibition circuit to a summing amplifier (34) which sums the distance pulses and causes the drum of a printer (48) to rotate. The inhibition circuit, which includes a monostable multi-vibrator (38) and an AND-gate (36) ensures that when the activity-measuring channel threshold is exceeded and distance readings are hence being printed out, odometer pulses are stored and not supplied to the summing amplifier. In the activity-measuring channel, output pulses from a photo-multiplier-scintillator (42) are received by the threshold-device, which is a monostable multi-vibrator (43). If the pulse frequency is greater than a threshold rate determined by a clock generator (47), a "print" signal is supplied to the printer via an AND gate (52) and the printer accordingly prints out the distance at which the threshold count-rate is exceeded. The gating circuit includes a delay loop so that pulses are not fed to the printer faster than its maximum printing rate. The print-out hence comprises a list of distances, each distance corresponding to the occurrence of a leak. If a leak is substantial, the corresponding distance may be printed a number of times.
Patent GB-1297357-A (GB)
IPC: B65D41/18
Filed: 1971-08-19
Abstract: 1297357 Caps for bottles L ECKEL 19 Aug 1971 [26 Aug 1970] 38948/71 Heading B8T A bottle cap, made of plastics, comprises a plug portion 1, a lid portion 2 and a skirt 3 provided with a bead 5, a rib 6 having a flange 11 and stiffening ribs 13 and 14, so that heat arising from the pasteurization of the bottle contents does not soften the bead 5 and loosen the cap. The flange 11 prevents the hot pasteurizing liquid reaching the bottom edge of skirt 3. The flange 11 and lower part of the rib 14 are deformed or damaged as the cap is removed and therefore indicate tampering.
Patent GB-1302228-A (GB)
IPC: B64D27/10
Filed: 1970-12-14
Abstract: 1302228 Gas turbine engines in aircraft HAWKER SIDDELEY AVIATION Ltd 14 Dec 1971 [14 Dec 1970] 59339/70 Heading B7G [Also in Division F1] A gas turbine engine 60, mounted on the wing 61 of an aircraft, discharges, via jet pipe 62, through the turbine of an aft turbo-fan unit 63 which is located in a position at the trailing edge of the wing to receive air flowing both over and under the wing and is mounted on the airframe structure; the jet pipe not being required to bear the load of the fan unit. In some instances it is possible to mount the fan unit as a cantilever off the wing but it is preferably carried alongside the fuselage on mountings on the fuselage structure. The engine 60 is shown mounted in a pod 64 just below the wing, but may be buried in the wing (Fig. 4, not shown), in which case engine, jet pipe and fan unit are substantially coaxial. The engine may also be carried beneath the wing on a pylon (Fig. 6, not shown) and in this case the jet pipe has considerably more curvature to lead up to the fan unit.
Patent GB-1307024-A (GB)
Title: Orientating vegetables for trimming
IPC: A23N15/04
Filed: 1970-10-14
Abstract: 1307024 Orientating carrots; endless conveyers THURNE ENG CO Ltd 14 Oct 1971 [14 Oct 1970] 48853/70 Heading B8A Carrots 9 are fed by a hopper (8) (Fig. 1, not shown), on to a conveyer 5 so that they may be moving either head or tail first. If moving tail first, the head is engaged between pairs of transfer wheels 33 and a wheel 12 having a peripheral lining of soft plastics. The peripheral speed of wheel 12 is a little over half the peripheral speed of the wheels 33. This results in the carrot being turned as in 9<SP>11</SP>. It then falls into the position 9<SP>111</SP>, and this action may be helped by the presence of a plate 44 which engages with the carrot's tail. Carrots travelling head first on the belt 5 are prevented from being turned by the engagement of their tails with the surface of the belt 5. The wheel 12 is carried by an arm 16 which is spring-urged in an anti-clockwise direction limited by an adjustable stop 16b. The arrangement may be arranged in multiple form so as to deal with a plurality of conveyer lanes.
Patent GB-1318519-A (GB)
Title: Intermittent-motion transmission
IPC: F16H27/04
Filed: 1969-11-10
Abstract: 1318519 Escapements MALLORY TIMERS Ltd 19 April 1971 [10 Nov 1969] 54933/69 Heading F2X [Also in Division H1] An intermittent-motion transmission mechanism comprises an output member T freely mounted on a shaft S which is driven at a constant speed by suitable means (not shown), an indexing arrangement I, and a tension spring F connecting the output member T to a lever L fixedly coupled to the shaft S. The end of the lever L which is remote from that to which the spring is attached is formed as a trailing pawl J. The indexing arrangement I includes a locking member P and a braking member R. The braking member R is an internal gear ring A which is stationary, and the locking member P comprises an advance wheel C and a toothed planet wheel X adapted to mesh continuously with the internal gear ring A. The advance wheel C and the planet wheel X are fast with one another and are arranged to be freely rotatable about a stud D fixed near the periphery of the output member T. The latter includes an arcuate stepped projection K such that it may function as a cam. In operation, as shaft S is rotated in the direction of arrow 1, lever L rotates at the same constant speed as the shaft S and energy is stored in the spring F as it is extended. Spring F is extended because output member T is prevented from rotating by the engagement of pawl J with advance wheel C. Wheel X also cannot rotate and therefore cannot move within the internal gear ring A. As lever L continues to rotate, pawl J eventually disengages advance wheel C, whereupon the latter can rotate on the stud D, with the result that wheel X can roll within the gear ring A and the energy stored in spring F will cause output member T to rotate in the direction of arrow 1. Advance wheel C rotates in the direction of arrow 2 and is displaced angularly as well as rotationally until the next tooth of the advance wheel C engages pawl J. The cycle is then repeated. Alternative features include an output member that is not a cam but is coupled to cams or elements to be intermittently driven, a braking member which comprises an external gear-wheel carried by, but freely rotatable about, shaft S and held in a predetermined position by being connected to a fixed rigid member, and the use of a leaf spring or torsion spring instead of a tension spring. The engagement between the locking and braking members is preferably positive as described above but it could alternatively be frictional. The use of a rotary intermittent transmission mechanism of the above type in a sequence control timer is described.
Patent GB-1322398-A (GB)
Title: Cassette for producing radiographic images
IPC: G03B42/02
Filed: 1970-05-01
Abstract: 1322398 X-ray apparatus AGFA-GEVAERT 22 April 1971 [1 May 1970] 21146/70 Heading H5R A radiographic film cassette includes first and second housings 41 and 42 for holding a supply roll of radiographic film and a roll of exposed film, respectively, interconnected by a narrow passageway 42 which includes an exposure frame covered by a flexible light-impermeable, radiation-permeable foil and an intensifying screen, the film being advanced in steps of predetermined length by rotation, from outside the second housing, of a take-up roller, the housing further containing a friction roller in engagement with the film, and stop means for the film releasable from outside the housing. The exposure frame 42 rests by ribs 45 on a table 18, and has a flexible front wall 46 formed by a black pigmented plastics or rubber foil which when an object to be X-rayed-such as a breast-is thereon, is pressed against a calcium tungstate intersifier screen 47. After an exposure, the film from a roll contained in the holder 14 is advanced a predetermined distance, by rotation of a take-up cylinder 55 for the exposed film in the housing 43. Cylinder 55 has a ratchet portion 62 which engages with a pawl on a spring-urged lever 59 when the latter drops into the recess in the cam disc 58. To advance the film, the handle 60 is manually actuated to disengage the lever 59 from the cam disc and the ratchet, whereafter cylinder 55 is rotated, the resulting advance of the film rotating the cam disc 58 by means of the guide roller 54 and gearing 56 and 57 until, after complete rotation of cam disc 58, the end of lever 59 again engages in its recess, and the pawl of lever 59 engages with ratchet wheel 62 to prevent further rotation. The housing 43 containing the take-up cylinder may either be integral with the remainder of the cassette, or merely attachable thereto in a light-tight manner. One side wall of the housings 41 and 43 and exposure frame 42 is removable to permit removal of the exposed film, and one longitudinal edge of the foil 46 is attached to the side wall by an adhesive flap co-operating with an adhesive layer on the wall, whereby a new film may be introduced into the cassette by attaching its end to cylinder 55, laying the adjacent portion over the intersifying screen 47, and introducing the roll into housing 41. The cassette may be constructed of stainless steel or pigmented polystyrene with a lead lining. It is stated that the take-up roll 55 may be coupled to, and driven by, the exposure mechanism.
Patent GB-1331939-A (GB)
Title: Device for cutting elongate stock such as wire rope
IPC: B23D29/00
Filed: 1970-10-30
Abstract: 1331939 Shearing HUTSONS Ltd and A C LOUDEN 30 Oct 1970 [22 Dec 1969] 62270/69 Heading B3W A cutter for wire rope, tube or rod 35 comprises a blade 23 slidable relative to a blade 13 by an hydraulic cylinder assembly 15. The blade 23 slides in slots in a plate 32 and in a guide 26 which is pivoted to a cutter housing 11 at 25, is moved upwardly for insertion of the stock to be cut and is retained in the operative position shown by means of a releasable pin 28. The cylinder assembly may be hand-primed.