baber/WOPTO huggingface dataset:
Patent GB-1201661-A (GB)
Title: Improvements in or relating to a cinematographic camera
Inventor: VOCKENHUBER KARL
IPC: G03B21/43
Filed: 1968-01-19
Abstract: 1,201,661. 661. Cine cameras. K. VOCKENHUBER and R. HAUSER. Jan. 19, 1968 [Jan.19, 1967] No.2996/68. Heading G2E. In a cine camera, means for indicating a jammed film transport comprises a pulse generator operated by the drive of the take-up spool, the pulses passing to a capacitor in a control circuit which is switched on simultaneously with starting the film drive, the circuit providing a signal to operate a warning lamp 23 when the pulse frequency falls below a minimum level. The pulse generator may be a rotary switch 20, 21, 22 on a gear 12 driving the take-up spool through key 11 and coupling 10. The camera motor 17 drives gear 12 through a slipping clutch 18, 19 whereby the gear may stop when the film jams. Lamp 23 is observed in the view-finder eye-piece 9 through a red filter 25. Depression of key 27 by operation of the camera release 29 switches the lamp into a battery-testing circuit and shifts green filter 26 into view. Lamp 23 is also used to indicate the end of the film run when switch 31 is closed as arm 30 senses a notch 37 in the film. Other switches is parallel with 31 may be included to be actuated by exposure control circuit or by failure of external apparatus such as a tape-recorder. An electronic framing speed regulator is in series with the motor 17 and may be used to cut off the motor when the film jams. The input capacitor (33), Fig.2 (not shown), transmits the pulses to the base of transistor (34) which passes them to a second transistor (36) between capacitor (35) and resistor (37) whose time constant is such that, at the operating pulse frequency, transistor (36) is always non-conductive when the pulses arrive and lamp (23) cannot light. If the frequency falls, transistor (36) opens and the lamp is energized.
Patent GB-789160-A (GB)
Title: Improvements in stabilising devices
Inventor: MEREDITH FREDERICK WILLIAM
IPC: H01Q1/18
Filed: 1952-02-05
Abstract: 789,160. Automatic direction finding control systems. SMITH & SONS (ENGLAND), Ltd., S. Feb. 5, 1953 [Feb. 5, 1952], No. 3060/52. Class 38 (4). [Also in Group XL (c)] In an aircraft radar beam scanning system in which the beam axis is gyroscopically stabilized, the reflector and gyroscope are movably mounted on a platform adjustable with respect to the aircraft. Stabilization can be effected in elevation alone or in both elevation and azimuth. Three control systems operate separately, one to move the platform relative to the craft so as to maintain the platform and outer gimbals of the gyro parallel, a second to maintain the inner and outer gimbal orthogonal and a third to maintain the line of sight and beam axes aligned. As shown, the reflector 3 is movable on platform 1 about axis 4, the radar installation 18, 19, 20 is fixed on 1 and generates signals in accordance with deviation between the sight line and beam axis which are applied to torque motor 17 mounted on inner gimbal 8 of gyro 9. The gyro precesses and moves the reflector through linkage 10, 11, 12. Orthogonality between gimbals 6, 8 is maintained by the detector 15 and the anti-topple torque motor 16. Platform 1 and gimbal ring 6 are maintained parallel by the push-off 13 and servomotor 14 which rotates 1 about axis 2 with respect to the aircraft. In a second embodiment, not shown, controls are exerted in both azimuth and elevation.
Patent GB-947542-A (GB)
Title: Face heads for horizontal boring and milling machines
IPC: B23B29/03
Filed: 1962-01-29
Abstract: 947,542. Boring heads. ZAVODY V.I. LENINA PLZEN NARODNI PODNIK. Jan. 29, 1962 [Jan. 27, 1961], No. 3246/62. Headings B3B and B3C. A boring head comprises a body 1 having guides 2, 2<SP>1</SP>, on which tool-holders 3, 3<SP>1</SP> are slidable.
Patent GB-215100-A (GB)
Title: Improvements in or relating to devices for connecting and disconnecting electric circuits
IPC: H01R13/70
Filed: 1923-02-03
Abstract: 215,100. White, A. E., (Osterreichische Dynamo-Werke Akt.-Ges.). Feb. 3, 1923. Plug couplings combined with electric switches. - The plug member 6 of a coupling comprises concentric conducting tubes 9, 10 connected to terminals 4, 5, the outer tube 9 having a sideways extending bit adapted to pass through a slot in the cover 11 of a socket member 3. When the plug is inserted in the socket. the tube 10 engages a pin 7 connected at 2 with one supply lead, and on rotation of the plug, the bit moves a spring restrained arm 8<a> about its pivot 1 and contacts with a contact 8 thereon, completing the circuit through the pivot 1 to the other lead. On insertion of the plug, the bit enters between the upstanding limbs of a V-member 12 secured to the base of the socket, a recess corresponding in size and shape to the bit and formed in one limb of the V-member only allows the correct plug being used.
Patent GB-824282-A (GB)
Title: Photosensitive compositions for lithography
IPC: G03F7/012
Filed: 1956-02-02
Abstract: 824,282. Photosensitive compositions; photomechanical printing plates. KODAK Ltd. (Kodak-Pathe S.A.). May 2, 1957 [Feb. 2, 1956], No. 3332/56. Class 98(2) An aqueous solution comprises an aromatic azide photosensitiser with a copolymer containing in the molecule 40 to 100% of acrylonitrile and acrylic acid groups, with relationship of hydrophobic groups (including acrylonitrile) to hydrophilic groups (including acrylic acid) of between 2.5 and 0.8 to 1. The 60% of other polymer groups which could be present may be hydrophobic or hydrophilic provided that the above relationship is retained. Copolymer concentration in the solution may be between 0.5 and 5%, and with azide sensitiser of 1% or more coating on a hydrophilic surface, exposure to a line or screen negative and warm water treatment to remove unexposed areas leaves a positive lithographic surface; but with azide sensitiser over about 2.5% for example 3 or 4%, the resulting image areas may be inkrepelling, and in this case a lipophilic varnish which adheres only to the bare areas is applied after the warm water treatment to make these areas ink-accepting. Example 1 details aqueous polymerisation of acrylonitrile and acrylic acid in ratio 40 to 30 in presence of catalyst, acid precipitation, re-solution in alkaline water, sensitizing with the sodium salt of 4.4<SP>1</SP>- diazidostilbene-2.2'disulphonic acid, coating on a grained aluminium plate,'exposure through a negative, warm water washing, and dyeing of the image and refers to use in a lithographic press to give positive copies. Examples II to IV refer' to Example 1 and indicate copolymer production using vinylic acetate, methyl acrylate, and both of these respectively, in addition to the above two monomers. Example V describes procedure using the higher proportion of azide sensitizer for direct positive lithographic operation, the lipophilic varnish referred to being a mixture of polyvinyl chloride and polyvinyl acetate. Numerous other monomers which may be included in the polymerisation mixture, other azide sensitisers and other supports are referred to.
Patent GB-1458485-A (GB)
Title: Two-stage evaporation
IPC: B01D3/06
Filed: 1975-01-27
Abstract: 1458485 Mixing condenser VEREINIGTE EDELSTAHLWERKE AG. 27 Jan 1975 [25 Jan 1974] 3396/75 Addition to 1421654 Heading BIB A two-stage evaporation plant comprises a mixing condenser (1) wherein vapour from a first evaporation Stage (via line 7) is mixed with part of the liquid from the second stage which is fed into the condenser (1) via a pump (8) the vapour flow being controlled by means of a float valve (3) which closes as the liquid level rises in the condenser (1).
Patent GB-489778-A (GB)
Title: Improvements in or relating to canisters and like containers
IPC: B65D51/22
Filed: 1937-02-05
Abstract: 489,778. Tins. FORTUNE, S. Feb. 5, 1937, No. 3522. [Class 66] The lid of a tin is provided with a recess 8, Figs. 2 and 3, formed with notches 8a, 8b, to accommodate in the operative and inoperative positions a cutter 4 adapted to cut a tagger or thin metal sealing diaphragm 2 disposed beneath a mouth-ring 3. The cutter is formed with a slot 7 to render it capable of a limited sliding movement to enable it to be turned into the operative position shown in Fig. 2 from the inoperative position shown in Fig. 3.
Patent GB-1386341-A (GB)
Title: Penicillin ketenimine intermediates for preparing oxacillin
IPC: C07D499/76
Filed: 1972-01-25
Abstract: 1386341 Ketenimino-penicillins and oxacillin PFIZER Inc 25 Jan 1972 [2 Nov 1971] 3537/72 Heading C2C [Also in Division C3] Novel ketenimino-penicillin esters having the general Formula (Ia): wherein R is phenyl or phenoxy; and R 1  is a 1-alkanoyloxyalkyl group wherein the alkanoyloxy group is C 2-5  and the alkyl group is C 1-4 ; a phenacyl group; a benzyl group which may be ring-substituted by 4-bromo, 4-nitro or 3,5- di-t-butyl-4-hydroxy; a bis-(4-methoxyphenyl)- methyl group; a trimethylsilyl group or a benzylideneimino group; are prepared by the following reaction sequence: wherein R and R 1  are as defined above, giving a mixture of the "normal" isomer (III) and its epimer (IV) of the keteniminopenicillin ester. The keteniminopenicillin esters as the mixed isomers, are converted into 6-(5-methyl-3- phenyl-4-isoxazolamido) penicillanic acid (oxacillin) by reacting with 5-methyl-3-phenylisoxazole-4-carboxylic acid to give a mixture of di-N-acyl isomers (V) and (VI):- The di-N-acyl epimers are treated with an alkyl or cycloalkyl amine, which results in removal of the phenoxyacetyl or phenylacetyl moiety and gives a mixture of corresponding isomers of the oxacillin ester. The mixture is separated into the "normal" isomer by chromatography with 90% benzene : 10% ether v./v. on a silica gel column, and the desired "normal" ester is then de-esterified to give oxacillin or its sodium salt. Chloromethyl acetate is produced by reacting acetylchloride with paraformaldehyde in the presence of a zinc chloride catalyst. 6 - Phenylacetamidopenicillanic acid, benzylideneimino ester is prepared by reacting potassium benzylpenicillinate with ethyl chloroformate and then with benzaldehyde oxime. Propionyloxymethyl benzylpenicillinate is prepared by reacting triethylammoniumbenzylpenicillinate with bromomethyl propionate.
Patent GB-818286-A (GB)
Title: Improvements in or relating to socket and plug connectors for electric circuits
IPC: H01R13/71
Filed: 1957-02-01
Abstract: 818,286. Two-part couplings combined with switches. RIZZIERI, I. Feb. 1, 1957 [Feb. 3, 1956], No. 3553/57. Class 38 (1). In a plug-and-socket connector of the type wherein the plug is first inserted axially in the socket and then rotated to bring the plug contacts into engagement with the socket contacts, the plug, according to one embodiment, has a projecting cylindrical portion 20 carrying radial stud contacts 22 which, during the first stage of plug insertion, pass along guides 25 in an aperture in the socket cover 24 and into engagement with slots 29 in the wall 28 of a cup-shaped insulating member 27 rotatably mounted in the socket, said wall 28 normally shrouding spring-loaded contacts 26. Rotation of the plug, and hence member 27, to align the slots 29 and contacts 22 with the contacts 26, also prevents axial removal of the plug whilst the circuit is closed since contacts 22 then abut the underside of cover 24. Member 27 may be tubular to provide' for a central earthing contact. Fig. 9 shows a modification wherein the plug has at least two pins 40. In this case a central cylindrical rotatable insulating member 42 in the socket has a flange 44 closing the front of the socket and apertured at 45 to pass the pins 40 which are received in grooves in the lower part of the cylinder and in a flange 46 on the socket. On rotation of the plug and cylinder to bring the pins 40 into engagement with contacts 26', the flange 46 engages slots 47 in the pins to retain the plug against axial removal from the socket.
Patent GB-368933-A (GB)
Title: Improvements relating to cartons
IPC: B65D81/36
Filed: 1931-02-05
Abstract: 368,933. Telescopes. PARTING- TON, J. J., 29, Dinas Road, and WESTMORELAND, A., 19, Lloyd Street, both in Llandudno, Carnarvonshire. Feb. 5, 1931, No. 3638. [Class 97 (i).] A carbon for sweetmeats &c. is made in the form of a telescope. As shown the carton comprises a portion 4<b> carrying the eye piece 8 and a portion 4a carrying the object glass 6, the portions 4a, 4b being telescopically and removably connected together by a member 7 which permits the focusing of the telescope.
Patent GB-1045534-A (GB)
Title: New 1-benzyl-5,6-dialkoxy benzimidazoles and a process for their manufacture
IPC: C07D235/08
Filed: 1964-01-28
Abstract: Novel compounds of the formula <FORM:1045534/C2/1> (wherein R1 is hydrogen, methoxy or ethoxy; R2 is hydrogen, halogen or C1- 6 alkoxy; R3 is hydrogen or alkyl which itself may be substituted by halogen, hydroxy, an unsubstituted or alkyl- or hydroxyalkyl-substituted saturated 5- or 6-membered heterocyclic ring with one or two hetero atoms, one being a nitrogen atom <FORM:1045534/C2/2> through which the ring is attached, or an amino group -NR5R6, where R5 and R6 are hydrogen, alkyl, alkenyl, cycloalkyl, hydroxyalkyl, or substituted or unsubstituted pyrimidinyl; and R4 is C1- 4 alkyl) and acid-addition salts thereof are prepared by ring closing condensation of the appropriately N,4,5 - trisubstituted o-phenylenediamine with an acid R1COOH (wherein R1 is hydrogen, alkyl, hydroxyalkyl or haloalkyl) or with an imino ether R11CH2C(= NH)OR (wherein R is alkyl and R11 is hydrogen, halogen, alkyl or hydroxyl) or a salt thereof, and, if desired, conversion of a 2-hydroxyalkyl product to the corresponding haloalkyl compound (which may also be obtained direct) and reaction of this with an amine NHR5R6 or an appropriate saturated heterocyclic amine.  Starting materials are prepared by the processes.
Patent GB-1209031-A (GB)
Title: A method of refining the structure of alloys
Inventor: COLLEY CEDRIC CHARLES EDWARD
IPC: B21D53/04
Filed: 1967-01-25
Abstract: 1,209,031. Refining the structure of alloys. PRESSED STEEL FISHER Ltd. Jan. 15, 1968 [Jan.25, 1967], No.3713/67. Headings C7A and C7N. The structure of eutectoid or near eutectoid alloys, which retain a high temperature solid phase state on quenching from above the eutectoid temperature for an incubation period prior to transformation to the eutectoid or partly eutectoid state, is refined by subjecting them to ultrasonic vibrations during the transformation period. The alloys may be cooled (e. g. in a liquid), possibly to below ambient temperatures, during the transformation period. The alloys may be Zn Al alloys (e.g. containing) 78%, 72% or 70% Zn), and cooling may be by air blast, 'cold water or ethylene glycol when sub-zero temperatures are desired.
Patent GB-175183-A (GB)
Title: Improvements in drafting machines
IPC: B43L13/06
Filed: 1921-02-01
Abstract: 175,183. Mavitta, W. Feb. 1, 1921. Draughting-machines.- Relates to machines of the parallel-motion type, as described in Specification 9056/15 and consists in an arrangement of counterpoise springs to facilitate the use of the instrument on a vertical or sloping surface. The suspension links a, a<1>, pivoted to the anchorage c<1> and to the coupling-ring d are counter. poised by one or more tension springs g connected at one end to the ring d and at the other end to a movable anchorage h mounted on a guide rail i which is curved to a radius approximately equal to that of the path of the centre of the ring d. The rail is supported from the anchor bracket c, preferably just in front of the fulcra of the links a, a'. The scale-carrying links b, b' are counterpoised by a tension spring or springs j connected at one end to an arm k secured to the ring d, and at the other end to the housing e carrying the scale-and-protractor unit f. To adjust the control of the spring j according to the slope of the drawing-board &c., the arm k may be made of considerable length and provided with a number of grooves k<1>, into any one of which a loop j<1> at the end of the spring may be placed.
Patent GB-1092475-A (GB)
Title: Improvements in or relating to tools adapted for use in blind riveting
IPC: B21J15/06
Filed: 1965-01-28
Abstract: 1,092,475. Blind riveting. GEORGE TUCKER EYELET CO. Ltd. Jan. 28, 1965 [Jan. 29, 1964], No. 3742/65. Heading B3U. A tool for setting tubular rivets by means of a break-off mandrel comprises an hydraulic cylinder 52 containing a piston 112 which is connected to a mandrel-gripping chuck mechanism 86, 88, by a hollow draw rod 78. Hydraulic fluid from a chamber 16 is forced into the cylinder 52 by a piston mounted on a piston rod 22 which also carries the piston 24 of a pneumatic cylinder 2. The rate of flow of fluid into the cylinder 52 is controlled by a metering device including an orifice plate which has a small central hole 44a and also has notches (44b), Fig. 3 (not shown), in its edge. The plate is free to move axially in a housing 36. When fluid is passing to the cylinder 52 the plate moves against a seat 46 which has a central aperture 48 which is larger than the bore 44a but is too small to allow fluid to pass by the notches (44b). When the rivet-setting mandrel breaks at the end of an operation the piston 112 moves suddenly forward and due to the restriction on the flow of fluid to the cylinder 52 there is a drop of pressure in the cylinder 52 which reduces the recoil of the tool and the possibility of damage to the workpiece. The piston 112 is returned by a spring 104 and when fluid is flowing into the chamber 16 the orifice plate moves against a shoulder 39 partly defined by a bore 42 which is of such a size that fluid can flow through the notches (44b) to facilitate the return movement. The tool is controlled by a trigger 130 which through a toggle mechanism operates a tubular member 144. This member pushes down a rubber valve 160 which is normally held against a valve seating by pressure in the air-line, and permits air to flow to the underside of the piston 24.
Patent GB-291830-A (GB)
Title: An improved construction of cloth expander or scrimp rail
IPC: D06C3/06
Filed: 1927-02-10
Abstract: 291,830. Hadwin, H. Feb. 10, 1927, Feeding webs. - In a cloth expander, scrimp rail, or the like consisting of a number of annuli b rotatably carried by bushes c slidable on a fixed bar a and bored so as to lie at gradually increasing angles to the bar, the annuli are rounded on the periphery and are of gradually increasing diameters towards the end of the bar so as to provide an expander of substantially the same diameter throughout its length. The bushes are provided with a detachable flange c<1> and enclose ball races e so as to provide antifriction bearings for the rings. The bushes are separated by wedge-shaped washers f carried on the bar a, the washers being formed from a strip of material slightly roofshaped on one side and split down the centre. The bushes are secured on the rod by means of a wedge-shaped collar and end cap. A rubber sleeve j is provided over the rings and is secured in place by means of a washer and screws. A dust-excluding and oil-retaining, washer is also provided at the end of the bar. The periphery of each ring may be covered with rubber, and the sleeve j then dispensed with. The periphery of each ring may be formed with projecting pins or thin metal plates held at a slight distance apart. The rubber sleeve may be formed with internal annular ribs to fit between the rings or in grooves in the rings.
Patent GB-1187755-A (GB)
Title: A Process for the Production of Isonitriles
Inventor: ARLT DIETER
IPC: C07C255/45
Filed: 1969-01-23
Abstract: 1,187,755. Isonitriles. FARBENFABRIKEN BAYER A.G. 23 Jan., 1969 [24 Feb., 1968], No. 3776/69. Heading C2C. Isonitriles are prepared by reacting an N- substituted formamide of formula R-NHCHO, wherein R is an optionally substituted aliphatic, cycloaliphatic, araliphatic or aromatic hydrocarbon radical, at a pH value of 4 to 14, with at least an equimolar quantity of an acylating agent, in the presence of a hydrophobic solvent and of an aqueous solution or suspension of an inorganic base and/or basic salt. The reaction is preferably carried out at a temperature of - 20 to + 40 C. The acylating may be phosgene, an aryl or alkyl sulphochloride, phosphorus oxychloride or cyanuric chloride and the preferred solvents are aliphatic or aromatic hydrocarbons or chlorinated hydrocarbons. Exemplified inorganic bases are alkali metal and alkaline earth metal hydroxides, carbonates and bicarbonates and exemplified basic salts are NaHCO 3 , KHCO 3 , Na 2 CO 3 , K 2 CO 3  and alkali metal phosphates. A list of suitable N-substituted formamide starting materials is given. In examples, tert.-butyl-, cyclohexyl-, 2,6-diethyl- 4 - methyl -, 2 - methyl - 6 - ethyl - and i - dodecyl-isonitriles are prepared. N - i - dodecyl formamide is prepared by reacting tetrapropylene with a solution of sulphuric acid in hydrocyanic acid.
Patent GB-797725-A (GB)
Title: Improvements relating to power plant including a nuclear reactor
Inventor: ECCLES WILLIAM
IPC: F01K7/18
Filed: 1954-02-09
Abstract: 797,725. Steam turbines. METROPOLITANVICKERS ELECTRICAL CO., Ltd. Feb. 4, 1955 [Feb. 9, 1954], No. 3802/54. Drawings to Specification. Class 110 (3). [Also in Group XL (a)] A power plant comprises a nuclear reactor cooled by a heat carrier which passes through a cascaded arrangement of boilers operating at different pressures wherein heat is transferred from the heat carrier to motive fluid supplies for a prime mover, e.g. a steam turbine, and a furnace heated boiler for supplying additional motive fluid to the prime mover when the latter's requirements exceed the output of the reactor heated boilers. The particular embodiment described comprises the system particularly described in Specification 778,941, [Group XXX], with the addition of an extra governor controlled turbine inlet valve connected to the furnace heated boiler and which, when the turbine demand exceeds the steam output from the reactor heated boilers and the turbine speed tends to drop accordingly, is opened by the governor to supply additional steam to the turbine and when the turbine load falls, and the speed rises, is closed. An additional furnace heater may be provided for the heat carrier passing to the boilers.
Patent GB-545456-A (GB)
Title: Improvements in or connected with fire-places for buildings
IPC: F24B1/183
Filed: 1941-03-20
Abstract: 545,456. Open fireplaces. DUNN, A. March 20, 1941, No. 3840. [Class 126] The flue of an open domestic fire-place incorporating a water boiler consists of an upper tapering tubular part A<SP>1</SP> and a lower substantially box-s h a p e d part A<SP>2</SP> open at the front to receive the boiler 3, the parts being moulded from fireclay either integrally or in two separate pieces recessed and ribbed to ensure correct registration. The upper part A<SP>1</SP> inclined forwardly and is formed with an internal recess 2 to receive a damper such as a sliding or pivoted shutter 14. The boiler is supported at its side by bearer bricks 4 so as to leave a passage from the grate 5 to the flue. Brickwork 6 is built above the border in front of the flue. In another construction the front and sides of the upper part A<SP>1</SP> are separate from the back, both portions being formed with registering projections and recesses.
Patent GB-122948-A (GB)
Title: Automatic Device for Indicating the Position and Angle in which an Aircraft is Flying.
Inventor: COLLIS ALFRED
IPC: G01C9/20
Filed: 1918-03-06
Abstract: 122,948. Collis, A. March 6, 1918. Clinometers.-A universal electrically-acting clinometer for aircraft comprises a mercury container A connected to one pole of a source of electricity, and a series of insulated contacts D, arranged in the form of a fore-and-aft cross, connected to the other pole. These contacts project through an insulating-plate C so that one or more of them, by contacting with the mercury, completes a circuit or circuits and thus illuminates a lamp or lamps. The lamps are arranged cruciformly, one to each contact, and alternatively other visible or audible signals may be employed. When the aircraft is upside-down all the lamps are illuminated.