baber/WOPTO huggingface dataset:
Patent GB-1171850-A (GB)
Title: Jet Pipe for a Jet Engine.
Inventor: KOPP GERHARD
IPC: F02K1/58
Filed: 1967-11-22
Abstract: 1,171,850. Deflecting propulsion jets ENTWICKLUNGSRING S D G.m.b.H. 22 Nov., 1967 [20 Dec., 1966], No. 53096/67. Heading B7G. A jet pipe 20 mounted on a jet propulsion engine 10 has an axially movable nozzle 30, first flaps 25, 26 movable to block the jet pipe and direct the efflux outwardly, and second flaps 21 in the jet pipe wall to further deflect the deflected jet efflux so that it has a considerable component in the reverse direction to the undeflected flow, the first and second flaps being operatively connected to the nozzle so that as the nozzle is moved, the flaps move to deflect the jet efflux. The first flaps 25, 26 may pivot about a horizontal diametral pivot 28 and may form, when undeflected, a smooth aerofoil with their associated supporting structure 24, 34. The jet pipe 30 may be displaced rearwardly by actuators 15, pins 31 mounted on the jet pipe sliding in slots 23 on the second flaps 21 to move these, and member 34 integral with the jet pipe connected by rods 33 to the pivot 28 moves this pivot causing the flaps 25, 26 to deflect, as these are connected by links 27 pivoted to member 24 fixed with respect to the engine.
Patent GB-1406898-A (GB)
Title: Frequency comparator system
IPC: H03L7/097
Filed: 1972-11-20
Abstract: 1406898 APC systems RCA CORPORATION 20 Nov 1972 [19 Nov 1971] 53452/72 Heading H3A An arrangement comprises a first comparator for comparing the frequencies of an input signal at 11 and a locally generated signal at 19 and including squarers 13, 21, and monostable multivibrators 15, 26 for producing a given number of respective pulses of fixed duration, an arrangement 17, 29, 35 for combining the two sets of pulses to produce an output signal reflecting the frequency difference, a phase locked loop detector 70 responsive to the input and locally generated signals to provide an output dependent on the relative phase difference, a second comparator 50 for comparing the output signal from the first comparator with a reference signal Vref2 for causing a switch 60 to change state when the frequency difference is zero for selectively coupling the phase detector 70 output in place of the frequency comparator output to a following stage, e.g. the VCO 19. For operation at higher frequencies, frequency dividers may be incorporated in front of the squarers 13, 21. The arrangement may be incorporated in a phase lock loop for synchronizing the local oscillator to an input frequency. In operation, a capacitor 35 is charged up via a current source 17 by the input pulses and discharged via a current sink 29 by the local oscillator pulses and the net charge voltage as integrated by 37, 39 represents the frequency difference.
Patent GB-1146449-A (GB)
Title: Cycloaliphatic sulfides containing epoxide groups
Inventor: BRACHEL HANSWILLI VON
IPC: C07D303/34
Filed: 1967-11-24
Abstract: 1,146,449. Cycloaliphatic sulphides containing epoxide groups. CASSELLA FARBWERKE MAINKUR A.G. 24 Nov., 1967 [26 Nov., 1966], No. 53539/67. Heading C2C. [Also in Division C3] Novel cycloaliphatic sulphides having the general formula wherein m is the integer 0, 1 or 2, X stands for a direct bond or a methylene, ethylene, -COO-CH 2 - or -CH 2 -O-CH 2 - bridge, and the bicycloheptane rings may still contain up to two lower alkyl groups, are prepared by reacting at elevated temperatures and in the presence of catalysts acting as radicals, hydrogen sulphide with bicycloheptenes of the general formula wherein m and X have the meaning as above. Starting material 1 - methyl - bicyclo - [2,2,1]- heptene - (2) - 6 - carboxylic acid glycidyl ester is obtained by heating dicyclopentadiene with excess methacrylic acid glycidyl ester together with 3,3,3<SP>1</SP>,3<SP>1</SP> - tetracyclohexyl - 4,4<SP>1 </SP>- dihydroxy-diphenyl methane as stabilizer. Another starting material of the formula is the adduct of 2 moles dicyclopentadiene to 1 mol. methacrylic acid glycidyl ester. A further starting material, 6-(2,3-epoxypropoxymethyl) - bicyclo - [2,2,1] - heptene - (2) is similarly prepared from dicyclopentadiene with allyl glycidyl ether.
Patent GB-1549118-A (GB)
Title: Electrical driving device for shutters
IPC: E06B9/72
Filed: 1977-12-29
Abstract: The electric drive device with a drive motor has a braking surface which rotates with the rotor (6) and a non-rotatably arranged braking counter-surface (45). The two surfaces are displaceable relative to one another. They are pressed against one another by a spring (38) when the drive motor is switched off. When the motor is running, one of the two surfaces is held at a distance from the other surface by magnetic force against the force of the spring (38). The braking moment of the brake is increased by temperature-dependent changes of the distance between the two surfaces of the brake being at least partially compensated e.g. by using materials in the drive device which have only small longitudinal thermal expansion coefficients in the critical temperature range or by an axial displaceability of the drive device. As a result, it is possible to use a relatively great energy to lift the brake and to manage with a relatively small travel of the brake. <IMAGE>
Patent GB-1224968-A (GB)
Title: Blocking device for shopping carts or the like
Inventor: SIEGEL FRANZ JR
IPC: B62B5/02
Filed: 1969-11-11
Abstract: 1,224,968. Brakes for shopping carts &c. F. SIEGEL, and J. SIEGEL. 11 Nov., 1969, No. 55142/69. Heading F2E. A blocking device for use on shopping carts or other wheel-mounted conveyances intended to be moved along and to rest on floors having parallel ribs 17 alternating with grooves 117 of predetermined width and depth, comprises a support 6 mounted on the conveyance and carrying a wheel 13 capable of reciprocating relative to the support, at least one shoe 15 carried by the support and having a braking surface spaced from the lowermost point of the wheel, and biasing means for urging the shoe and wheel downwards whereby the shoe and wheel can engage a rib 17 which is adjacent to the groove into which the wheel extends when the conveyance rests on a groove floor. As shown, a plunger 8 loaded by a spring 9 is reciprocable and turnable in a cylinder 7 as determined by vertical slots in the cylinder and a pin 10 in the plunger, the cylinder being welded or clamped to the frame 3a of the conveyance; the wheel 13 or axle 14 thereof are movable axially relative to the shoes 15 and the latter engage in grooves 16 of the ribs 17. The cylinder 7 may be mounted for pivotal movement normal to longitudinal direction of the frame member 3a and biased by leaf springs to assume a vertical position.
Patent GB-1436368-A (GB)
Title: Endless fibre glass belting
IPC: B29D29/00
Filed: 1973-11-28
Abstract: 1436368 Seaming non-metallic sheet material FOTHERGILL & HARVEY Ltd 18 Nov 1974 [28 Nov 1973] 55150/73 Heading B5K [Also in Division F2] The ends of a belt are joined to form an endless belt, the belt being formed from woven plastics coated fibre glass yarn or a woven fibre glass yarn fabric coated with plastics material by applying plastics coated fibre glass tapes B across each of the ends of the belt A 1 , heating the tapes B to soften the plastics coating between the tapes and the belt ends, stripping the tapes from the belt together with the plastics coating, removing the weft yarn 2 from the stripped portions, interdigitating the stripped warp ends 3, applying a film 4 of plastics material above and below the interdigitated warp ends 3 and heating the belt ends to cause the films to adhere to the warp ends 3. The belt A 1  and the tapes B may be made of the same material, e.g. woven glass fibre fabric coated with polytetrafluoroethylene or fluorinated ethylene propylene polymer. A layer 1 of heat fusible high temperature resistant material is interposed between each tape B and the belt A 1 . The tapes B overlap at each end the longitudinal side edges of the belt A 1  and are bonded to the belt by heat. After cooling to ambient temperature, the tapes are stripped from the belt and remove the coating from each side thereof together with the layer 1. The weft yarns 2 are removed from the exposed ends and the warp ends 3 are interdigitated with an intermediate heat fusible film 5. Jointing films 4 are applied above and below the interdigitated warp ends and the assembly is heated in a press to effect jointing. The films 4, 5 may be made of fluorinated ethylene propylene polymer. A reinforcing strip 4<SP>1</SP> of the same polymer may be applied to the underside of the belt. In a modification, Fig. 6 (not shown), two belts are joined longitudinally, in addition to end-to-end, to form a wider belt.
Patent GB-1492757-A (GB)
Title: Process for the manufacture of polyaddition products containing imide groups
IPC: C08G73/12
Filed: 1974-12-20
Abstract: 1492757 Unsaturated imide polymers CIBAGEIGY AG 20 Dec 1974 [21 Dec 1973 (2) 7 Feb 1974 (2)] 55153/74 Heading C3R Polyaddition products are obtained by reacting a compound containing at least two groups where D is a radical containing an olefinic bond, with a polyhydric alcohol and with a basic compound in the substantial absence of water at 50 to 280 C. The alcohol may be a diol or triol specified alcohols include C 2-12  aliphatic alcohols; cycloaliphatic alcohols with one or more cycloaliphatic nuclei which may be linked by CH 2 , C(CH 3 ) 2 , SO 2 , SO, S or O; and polyglycol ethers of polyhydric alcohols or phenols. Resoles are regarded as polyhydric phenols, its use of which is the subject of Specification 1,492,759, and are excluded from the present invention. In one embodiment the basic compounds act as catalysts and 0À1 to 1 equivalents of alcohol are used per equivalent of imide with 0À01 to 15 wt. per cent of catalyst; specified basic compounds being secondary and/or tertiary mono- or polyamines, quaternary ammonium and alkali metal compounds, e.g. di- or trialkyl amines, N- methyl pyrrolidone, tetramethyldiaminodiphenyl methane, quinoline, N,N-dibutylaminoacetonitrile, imidazole, benzimidazole, mercaptobenzothiazole, benzyltrimethylammonium hydroxide or methoxide and sodium methylate. In an alternative embodiment the basic compound is a primary polyamine and is used in equivalent ratio related to the polyol from 4 : 1 to 1 : 4 with a total of 0-2 to 1À5 equivalents of polyamine plus polyol per equivalent of imide. Suitable polyamines and imides are those listed in Specification 1,190,718. The polyol and polyamine may be reacted simultaneously or in either order with the imide. The compounds may be used in the conventional applications of thermosetting resins and with conventional compounding ingredients numerous of which are listed. Reference is also made to Specifications 1,446,478; 1,137,592 and 1,027,059.
Patent GB-1362105-A (GB)
Title: Apparatus for sensing magnetic data
IPC: G06K7/08
Filed: 1972-12-01
Abstract: 1362105 Character recognition systems; magnetic heads INTERNATIONAL BUSINESS MACHINES CORP 1 Dec 1972 [27 Dec 1971] 55661/72 Headings G4R and G5R Data, such as legible characters, in the form of patterns of magnetic material on a non-magnetic support, is sensed by a magneto-resistive member 14. The support, such as cheque 2, is moved under the poles of a magnet 8 which provides a field My in the region of the characters under the magnet. The magnetic ink is subjected to the horizontal field component Bp. The vertical component Bh biases the magnetoresistive member 14 to operate at the most sensitive part of its characteristic. The easy axis of magnetization of member 14 is parallel to the plane of the cheque 2 so the resistance of member 14 changes according to the flux from the characters as they pass beneath it. The resistance changes are used to provide a signal to recognition circuitry.
Patent GB-1129039-A (GB)
Title: Process for separating strontium values from a solution containing strontium
Inventor: AUBERTIN CHARLES
IPC: G21F9/12
Filed: 1966-12-16
Abstract: 1,129,039. Strontium recovery. COMMISSARIAT A L'ENERGIE ATOMIQUE. 16 Dec., 1966 [5 Jan., 1966; 30 Nov., 1966], No. 56376/66. Heading C1A. Strontium values are removed from solution by a process that comprises a first step of contacting the solution with an ion-exchanger which is antimonic acid and a second step of eluting the strontium values fixed to the antimonic acid with a solution containing a cation that has a greater affinity for antimonic acid than strontium. The elution may be carried out by an acidified silver nitrate solution of 0À05-1M concentration, and acidity 1 to 3N, or alternatively the eluant may be acidified lead nitrate of 0À05-1M concentration and acidity 0 to 3N. The ion-exchanger may be regenerated with nitric acid of 3-6N concentration when the former eluant has been used, and 2-5N when the latter eluant has been used.
Patent GB-1166469-A (GB)
Title: Improvements in or relating to Extractor Fans
Inventor: APPLETON ERIC DAVID
IPC: F04D25/12
Filed: 1966-12-16
Abstract: 1,166,469. Spring clips. WOODS OF COLCHESTER Ltd. 30 Jan., 1968 [16 Dec., 19661, No. 56462/66. Heading E2B. [Also in Divisions F2 and F4] An outer surround 44 of an extractor fan is secured against an outer flange of a gasket 30 by two or more spring clips 59, each clip being slid into a slot 60 of a corresponding lug 51 which projects through the window opening and the leading arm of the' clip engaging an inner flange of the gasket 30. The clips 59 are bent from spring metal strip and include stamped out spring fingers 62 which prevent withdrawal of the clips from the slots 60.
Patent GB-1215147-A (GB)
Title: The control of variable focal length lens systems
IPC: G03B17/14
Filed: 1967-12-12
Abstract: 1,215,147. Zoom lenses. SOC. DE FINANCEMENT ET DE PARTICIPATION LAUSANNE S.A. Dec.12, 1967 [Dec.12, 1966], No.56493/67. Heading G2J. In a zoom lens having control means for varying the position of the moveable part of the lens, the means comprises a variable speed electric motor having disposed on its shaft a clutch equipped with a pre-selector device which is adapted to permit reversible drive so that the moveable lens part may be moved to vary the focal length of the lens and which is further adapted to permit the locking of the moveable part at a given position. The device is also adapted to provide a two-speed drive and declutching of the motor to allow manual control.
Patent GB-1434427-A (GB)
Title: Radio navigation aid
IPC: G01S1/38
Filed: 1973-12-06
Abstract: 1434427 Radio navigation STANDARD TELEPHONES & CABLES Ltd 28 Nov 1974 [6 Dec 1973] 56513/73 Heading H4D A method of determining the locations of objects which cause unwanted reflections of radio beacon signals features transmission from the beacon of a directionally coded signal over a given service sector, and reception thereof by a receiver which is moved within the sector along a set path towards the beacon. During the movement of the receiver all signals originating from the beacon are recorded in such form as to be coded in respect of beacon and receiver related bearings. Said signals are individually isolated to enable identification and location of the objects concerned. As described, an aircraft A, Fig. 1, is equipped with receiving and recording equipment, and flies on a direct path DP towards a beacon B, transmissions from which are directionally coded in frequency using the Doppler effect (cyclic movement of radiation centre along an array). The path DP makes an angle #1 with the broadside direction of the beacon array, and paths to reflecting objects R1, R2 make angles #2, #3 thereto. Consequently, the aircraft A receives signals coded according to the angles #2, #3 in addition to those coded according to the angle #1. With further coding applied at the receiver the bearings #2, #3 of the objects R1, R2 with respect to the path DP may be obtained. A tape or other recorder is carried, capable of handling the Doppler spectrum associated with the azimuth sector under investigation, recording of signals being made after sector filtering but before further processing. The recorded signals may be individually identified in respect of frequency and amplitude from a panoramic display of the recorded signals on a spectrum analyser (Fig. 2b), and may be separated by means of filter circuits. One method of further coding uses the "scallopping" arising from the aircraft motion whereby there ia a continually changing phase difference between the signals received along the direct and the indirect paths. Thus, considering the reflecting object R1, it is shown that the angle #2 may be obtained by determining the scallop rate, which is equal to (velocity of aircraft) x (1-cos #2)/(wavelength). In other methods of further coding an aerial array is provided on the aircraft, and either an angularly dependent amplitude modulation is impressed upon the received signals or Doppler scanning of said array is used.
Patent GB-1125560-A (GB)
Title: Chemical analysis
IPC: G01N35/00
Filed: 1965-08-31
Abstract: 1,125,560. Analysis of liquid samples. SCIENTIFIC INDUSTRIES INC. 31 Aug., 1965 [31 Aug., 1964], No. 56630/67. Divided out of 1125301. Heading B1X. Automatic analysis apparatus comprises a device 17 for dispensing a liquid sample on to a tape combination which comprises a translucent porous portion (23) (Fig. 2 not shown) in close contact with a reagent-impregnated tape (21) and which travels from input zone 11 to terminal zone 16; transfer zone 12 through which the tape combination passes and in which it moves for a fixed period of time during which the component of the sample to be assayed .passes through the porous tape to the reagent tape; drying zone 14b where the tape is dried; and readout zone 15 which includes a light source and a photo cell 44. A colour-forming reagent may be sprayed on to the tape at treating zone 13 and excess sample and/or reagent washed from the tape at wash-station 14a. In the embodiment of Fig. 3 (not shown) a chamber (33) encloses transfer, treating and drying zones. In the apparatus of Fig. 3a (not shown), the porous tape and the lower tape are initially separately wound. Reagent is incorporated in the lower tape by passing it over a reagentimpregnated roller (25a). The lower tape only passes through a drying zone, then the two tapes are squeezed together by rollers (27a) before travelling to the sample dispensing device. The sample spots may be placed on the tape combination within a confining circle of hydrophobic or water-repellent material. The tape combination may comprise two tapes or a bonded tape made by spraying a paper tape with for example a solution of cellulose acetate and drying. Examples relate to determination of glucose in blood serum both enzymatically and chemically, determination of carbon dioxide in blood and determination of protein in blood or plasma.
Patent GB-1399289-A (GB)
Title: Redundant fraunhofer recording system
IPC: G03H1/00
Filed: 1972-12-08
Abstract: 1399289 Speckle-free redundant hologram RCA CORPORATION 8 Dec 1972 [9 Dec 1971] 56653/72 Heading G2J A transistor for recording system for moving images is designed to image the pin-hole array substantially at the recording medium plane. This involves p, q and f is independent of the object/medium position as the object beam is collimated by lens 116. A lens array may be used behind the pin hole array.
Patent GB-1181149-A (GB)
Title: Improvements in or relating to Day and Night Glasses
IPC: G02B23/12
Filed: 1967-12-14
Abstract: 1,181,149. Local viewing. ERNST LEITZ G.m.b.H. 14 Dec., 1967 [21 Dec., 1966], No. 56826/67. Heading H4F. [Also in Division G2] A telescopic sight having two observation systems, one for use with daylight 1, Fig. 1, and the other having an image converter for use with non-visible light 2, includes means for optically aligning either one of the observation systems with the light axis of a forward mounted lens system 5, this lens system which is preferably a magnifying lens system, being arranged to effectively move the entrance pupil of the optically aligned observation system, such as entrance pupil 3, to the position of entrance pupil 8. Lens system 5 may be mounted within the armour plating 7 of a vehicle, the image of entrance pupil 8 being formed in entrance pupil 3 of the day observation system 1 or in the entrance pupil (not shown) of the night observation system 2. A recticle 10 may be included in the lens system. In a second embodiment, Fig. 2 (not shown), the night observation system is arranged to be in, or out of, the optical path by means of two pivotable mirrors, the day observation system always being in the optical path and acting as an eye-piece when the night observation system is active. In a third embodiment, Fig. 3 (not shown), the lens system includes four prisms which are rotatable about axes so that a change of direction of view may be achieved.
Patent GB-1453845-A (GB)
Title: Device for holding a sheet of paper thin card or the like
IPC: G09F1/10
Filed: 1973-12-10
Abstract: 1453845 Display devices MARKETING CONSULTING CORP AB 10 Dec 1973 57029/73 Heading G5C A device for holding a display sheet of paper or thin card has an elongated body 1 in which is formed a longitudinal open-sided slit 8 with inner opposed faces that are ribbed in a wavy complementary fashion such that a sheet may be easily inserted into the slit edgewise in a longitudinal direction, but can be withdrawn transversely only with difficulty. The device may be integrally formed in plastics and may include mounting plates 5, 6 or a clamp 20 (not shown). Another form of body 1 has a wedge-shaped hook 34 at one end for retention in a mounting ring 36 movable on a pole 37. A single ring may carry multiple such devices.
Patent GB-1134759-A (GB)
Title: Improvements in electrolytic machining
Inventor: OLSON ROBERT DALE
IPC: B23H9/02
Filed: 1966-12-21
Abstract: 1,134,759. Electrolytic machining. GENERAL ELECTRIC CO. Dec.21, 1966 [March 23, 1966], No.57212/66. Heading C7B. Conductive material is electrolytically removed from that portion of a workpiece defining the periphery of a hole therein by directing electrolyte through said hole and away from said workpiece toward and in contact with an electrolytic tool which is placed in juxtaposition with said workpiece, whilst avoiding return of electrolyte from the tool to the workpiece, electric potential being applied between the workpiece and the tool such that the workpiece is predominently anodic with respect to the tool. The tool preferably comprises a screen of highly porous material or network through which electrolyte can readily pass. As shown electrolyte is supplied from tank 34 via pipe 36 to cylindrical workpiece 10 having holes 26, and passes through said holes to contact and pass through the tool 16, which takes the form of a screen. Workpiece and tool are supported in clamps 12, 18. The tool screen may be cylindrical and be placed about the workpiece. The tool or the tool and workpiece may be held vertically Figs.2, 3 (not shown).
Patent GB-1451112-A (GB)
Title: Loose-leaf ring binder mechanisms
IPC: B42F13/26
Filed: 1973-12-12
Abstract: 1451112 Loose-leaf ring binders KOLOMAN HANDLER GmbH 12 Dec 1973 [15 Dec 1972] 57555/73 Heading B6E A loose-leaf binding having a resilient casing 5, Fig. 3, in which are disposed abutting ring bars 1, 2, Fig. 2, is provided with toggle levers 10, at one or each end of the casing, the levers being snap fitted into the casing by forcing slots 15, Fig. 3, in lateral projections 14 of the lever 10 past chamfered edges 18 on the ends of the ring bars 1, 2. The lateral projections 14 are arrested by recesses 16 whilst a central projection 11 of the lever 10 which is provided with lateral recesses 12 engages noses 13 at the ends of the ring bars 1, 2. Toggle action of lever or levers 10 about an axis normal to the longitudinal axis of the casing 5 causes the ring bars 1, 2 to be moved between ring (3, 4, Fig. 1) open and closed position.