baber/WOPTO huggingface dataset:
Patent GB-1276968-A (GB)
Title: Improvements in or relating to phenylacetamides and the preparation thereof
IPC: C07D317/60
Filed: 1970-12-02
Abstract: 1276968 Phenylacetamide derivatives GRUPPO LEPETIT SpA 2 Dec 1970 [15 Jan 1970] 57330/70 Heading C2C Novel phenylacetamides of the formula wherein X is halogen, and R, R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> each are H, halogen, NO 2  or C 1-4  alkoxy or the paired moieties R and R<SP>1</SP> together or R<SP>2</SP> and R<SP>3</SP> together represent methylenedioxy, provided that when R, R<SP>1</SP>, R<SP>2</SP> and R<SP>3</SP> are all H, X is not Cl, are prepared by reacting the appropriate phenylacetyl halides with the corresponding aralkylamines. Pharmaceutical compositions, suitable for oral or parenteral administration, contain the above novel compounds together with pharmaceutically acceptable carriers. The compositions may be used as coronary dilators.
Patent GB-1221719-A (GB)
Title: Telephone system
IPC: H04M9/00
Filed: 1968-12-05
Abstract: 1,221,719. Intercommunication systems. INTERNATIONAL STANDARD ELECTRIC CORP. 5 Dec., 1968 [12 Dec., 1967], No. 57768/68. Heading H4K. In an intercommunication system each substation has a plurality of keys or push-buttons operation of any one of which connects the substation to a corresponding common speech channel and can mark the channel with a tone to busy or hold it. The channels may be carrier channels or wired speech paths. An arrangement in which each channel comprises a fourwire speech path is detailed. Each substation has an audio or sub-audio tone generator and when the subscriber at a substation lifts the receiver and presses a button to connect the substation to a channel, the tone generator is connected via the hook-switch contacts, a transmit gate and a transformer to a phantom circuit of the four-wire path. At each of the substations the tone is detected and lights a lamp associated with the speech path to indicate that it is busy. The detected signal also inhibits a bi-stable at each substation so that no other call can be initiated on the channel. At the called subscriber substation a ringing signal is received in known fashion and bursts of tone from the local generator are coupled via the substation transformer, coupled to the speech path, to the lamp associated with that speech path causing it to flash rapidly as a calling signal. When the called subscriber lifts the receiver his substation tone generator applies a continuous tone to the phantom circuit of the speech path so that the line remains marked busy until the called subscriber hangs up. If a subscriber involved in a call presses a hold key and replaces his receiver (e.g. during call transfer) tone from the substation tone generator is transmitted on the phantom circuit of the speech path and to the associated local lamp via the transformer causing a lamp at each station to flash slowly indicating that the speech path is being held. A switchboard connects the lines to a public exchange.
Patent GB-1453846-A (GB)
Title: Cockcroft-walton cascade circuits for voltage multiplication
IPC: H02M7/10
Filed: 1973-12-14
Abstract: 1453846 Voltage multiplying rectifiers ERNST ROEDERSTEIN SPEZIALFABRIK FUR KONDENSATOREN GmbH 14 Dec 1973 [21 Dec 1972] 58110/73 Heading H2F In a Cockcroft-Walton voltage-multiplying rectifier, e.g. for EHT supply to the picture tube of a TV receiver, the input capacitor Cl of the pump chain (and preferably the other capacitors such as C2 of the pump chain) is either a selfhealing capacitor impregnated with a high voltage impregnant or a metal foil capacitor and is less susceptible to internal discharges than the capacitors C3-C5 of the storage chain. This arrangement enables the internal impedance to be reduced by the use of higher capacitance capacitors but resulting in a smaller physical size than if higher voltage capacitors were employed in all positions. Capacitor Cl preferably uses metal foil and is impregnated with polybutene or silicone oil whilst C2 is preferably formed as a similarly impregnated self-healing metallised film capacitor.
Patent GB-1452115-A (GB)
Title: Method of selective stripping of plutonium for organic solvents loaded with plutonium
IPC: C01G56/00
Filed: 1973-12-17
Abstract: 1452115 Recovery of plutonium COMMISSARIAT A L'ENERGIE ATOMIQUE 17 Dec 1973 [28 Dec 1972] 58349/73 Heading G6R Plutonium is selectively stripped from an organic solvent by countercurrent contact with an aqueous solution containing a hydroxylamine salt and also containing formic acid in a concentration of 1M to 5M. A low or high content of uranium may also be present in the organic solvent and in such cases a separation of the plutonium from the uranium is achieved. The organic solvent may be trilaurylamine diluted with tertiary butyl benzene or tributyl phosphate diluted with dodecane. The stripping solution preferably contains nitric acid and the hydroxylamine salt may be the nitrate, formate, acetate, or propionate. The aqueous effluent may be concentrated by boiling and treated with oxalic acid to precipitate plutonium oxalate.
Patent GB-1279098-A (GB)
Title: Improvements in orbiting spacecraft or satellite attitude control systems
Inventor: HEATON JAMES WILLIAM
IPC: B64G1/28
Filed: 1968-10-01
Abstract: 1279098 Controlling satellites HAWKER SIDDELEY DYNAMICS Ltd 1 Oct 1969 [1 Oct 1968 10 Dec 1968] 46608/68 and 58759/68 Heading B7W An attitude control system for a spin stabilized orbiting spacecraft or satellite 11 comprises one or more coils or electromagnets 13, the excitation of which is controllably variable, mounted with their magnetic axes 14 perpendicular to the spacecraft spin axis 12. Application of an excitation current which is pulsed cyclically (15, Fig. 1b, not shown), or which has an alternating waveform (16), of which one or more complete cycles occur for each revolution of the structure 11 and the magnet 13, causes the magnetic moment of magnet 13 to react with the component of the local magnetic field 17 which is parallel to the axis 12 to produce an attitude control torque 18 which controls the precession of the spin axis. The amplitude of any associated nutation which would remain after removal of the torque 18 may be made zero merely by suitable adjustment of the operation time of the torque and of the appropriate moment for removing it. If the stabilization angular momentum is generated by a flywheel 20 (Fig. 2, not shown) within the stationary spacecraft structure (19), the controlling torque is obtained from two electromagnets (22) on the structure (19) which have their magnetic axes perpendicular to the spin axis (21) and to each other.
Patent GB-1368964-A (GB)
Title: Splitting of oriented films
IPC: D01D5/42
Filed: 1971-11-30
Abstract: 1368964 Fibrillation apparatus FLEMINGS ROPES & TWINES (WOOLSTON) Ltd 30 Nov 1971 [11 Dec 1970] 58850/70 Heading B5B [Also in Division F2]  Apparatus for producing fibres from oriented sheets of polymeric material, e.g. polypropylene includes a cylindrical splitting roller 18a, the cylindrical surface of which is provided with circumferentially extending grooves 20 and ridges 21. Stops or keys 22 are placed at spaced intervals in the grooves 20, the tops of the keys 22 being level with the crests of the ridges 21. The keys 22 may be arranged in a helical path around the cylindrical surface of the roller. Preferably the grooves and ridges are of rectangular cross-section; other possible crosssections are triangular or, as in Fig. 5 triangular with alternate grooves shallower than the others.
Patent GB-1329629-A (GB)
Title: Pressure fluid cylinders
IPC: F15B15/08
Filed: 1971-12-21
Abstract: 1329629 Fluid pressure actuators ORIGA CYLINDRAR A B 21 Dec 1971 [22 Dec 1970] 59292/71 Heading F1D [Also in Division F2] A fluid pressure piston and cylinder unit comprises a piston 2 having a transmitting member 4 which projects through a slot 3 in the wall of the cylinder 1, and a sealing member 7 which is attracted into sealing relationship with the slot by magnetic forces and moved away from the slot between the piston and the transmitting member. The sealing member may be a lining or a strip 7 which is attracted to the slot by permanent or electromagnets 8, 9 and depressed in the vicinity of the transmitting member 4 by a bowed slide surface on the transmitting member; the sealing member 7 may also be of a permanentmagnetic material. The cylinder, may be made of aluminium or glass fibre reinforced plastics and formed with a wall thickened on its lower side as shown to increase its strength; the cylinder may have other cross-sectional shapes and may also be curved, in which case the piston preferably is hinged. Auxiliary seals of elastomeric material may also be provided adjacent the slot or sealing member 7. When the sealing member 7 is open to the interior of the cylinder only on one side the magnets 8 or 9 need only be provided on that side. In a modification, Figs. 3 & 4 (not shown), a further sealing strip (30) is provided on the outside of the slot and two bowed slide surfaces are provided on the transmitting member (14), the further sealing strip being pressed against the slot by a sealing collar (31) on the transmitting member. In this modification fluid passages in the piston and transmitting member are used to pass drive fluid (e. g. compressed air or oil for carrying out a machining operation by an external unit after the piston has been moved) from the cylinder to an outlet (28), a shuttle valve (26) being provided in the piston to close off the passage (20) or the passage (21) depending on which side of the piston the fluid pressure is applied. In a further modification, Fig. 5 (not shown) the shuttle valve is replaced by spring-loaded ball valves (32, 33).
Patent GB-1416113-A (GB)
Title: Hexahydrocyclopenta-b-furan derivatives and a process for  the manufacture thereof
IPC: C07C405/00
Filed: 1973-12-21
Abstract: 1416113 Cyclopenta[b]furan derivatives F HOFFMANN-LA ROCHE & CO AG 21 Dec 1973 [22 Dec 1972] 59299/73 Heading C2C Novel compounds of Formula XXII wherein R is a hydroxy group or an ether or ester group which is hydrolysable to a hydroxy group, are prepared by treating a compound of Formula XV with a peracid to yield a compound XXII in which R is acetoxy, if desired, hydrolysing this compound to give a compound XXII in which R is OH, and, if desired, subjecting the free OH compound to etherification or esterification to yield a compound XXII in which R is a hydrolysable ester or ether group other than acetoxy. Compound XV is prepared from dihydroresorcylic acid via a number of intermediates according to the following reaction scheme in which R 3  is C 2-7  alkanoyl, R 4  is C 1-7  alkyl and X is halogen:  Aldehydes of Formula III in which R<SP>1</SP> is an ether or ester group hydrolysable to OH, are prepared by converting a compound XXII to an aci-nitro salt and then oxidizing said salt. Compounds III may be converted to compounds XIX and XXI by known methods. Compounds XXI may be hydrolysed to form the corresponding compound in which R<SP>1</SP> is OH.
Patent GB-1207037-A (GB)
Title: Electrophotographic photosensitive material
IPC: G03G5/05
Filed: 1968-12-17
Abstract: 1,207,037. Electrophotographic element. FUJI SHASHIN FILM K.K. 17 Dec., 1968 [26 Dec., 1967], No. 60006/68. Heading H1K. An electrophotographic element comprises a support having a photo-conductive layer thereon, the layer comprising an inorganic photoconductor dispersed in a binder, the binder comprising co-poly vinyl chloride/acetate together with ethyl phthalyl ethyl glycolate and/ or diphenyl mono-o-biphenylyl phosphate as a plasticizer. The copolymer contains 55-95 wt. per cent vinyl chloride and the plasticizer is present in amount 5-25 wt. per cent based on the binder. The photo-conductor is preferably ZnO but may be ZnS, CdS, CdS + CdCO 3 , ZnO + CdS, ZnCdS 2 , TiO 2 , a telluride or an iodide. The support may be Al foil or paper. Additional plasticizers exemplified may be methyl phthalyl ethyl glycolate, trichloroethyl phosphate, dimethyl phthalate and polyesters.
Patent GB-1202487-A (GB)
Title: Polymer production
IPC: C08F2/22
Filed: 1968-12-18
Abstract: 1,202,487. Ethylene-vinyl acetate copolymers. CELANESE CORP. 18 Dec., 1968 [22 Dec., 1967], No. 60076/68. Heading C3P.  Ethylene and vinyl acetate are copolymerized in aqueous emulsion in the presence of a non- ionic surfactant or a mixture of non-ionic and anionic surfactants having a HLB of 16-18.
Patent GB-1248329-A (GB)
Title: Process and apparatus for the distillative purification of acetone
IPC: C07C45/00
Filed: 1969-12-10
Abstract: 1,248,329. Purification of acetone. FARBWERKE HOECHST A.G. 10 Dec., 1969 [10 Dec., 1968], No. 60317/69. Heading C2C. A process for the distillative purification of crude acetone (obtained by the oxidation of propylene with an oxygen-containing gas in the presence of an aqueous catalyst solution containing a compound of a noble metal and a halide of a varivalent heavy metal) comprises distilling the crude acetone under reflux in a first distillation zone to obtain aqueous acetone as distillate, simultaneously withdrawing from the first distillation zone a side stream comprising by-products which, either alone or as azeotropic mixtures, have boiling points between those of acetone and water, subjecting the distillate of the first distillation zone to an extractive distillation with water as extraction agent in a second distillation zone to separate as distillate the by-products which have boiling points below that of acetone, distilling the sump product of the second distillation zone containing water and acetone in a third distillation zone to obtain acetone as distillate, and simultaneously separating the entrained acetone from the side stream withdrawn from the first distillation zone. This latter step may be carried out in a fourth distillation zone or alternatively may be replaced by a liquid-liquid extraction and phase-separation in which the acetone in the said side-stream is collected, by adding water, in a phase of lighter S.G., which phase is separated and added to the crude acetone to be purified, while the phase of higher S.G. and containing the by-products is removed.
Patent GB-1337353-A (GB)
Title: Butylene glycol ether derivative
IPC: B01J31/00
Filed: 1971-12-30
Abstract: 1337353 Glycol ether NIPPON ZOKI PHARMACEUTICAL CO Ltd 30 Dec 1971 [31 Dec 1970] 60753/71 Heading C2C The novel compound I is prepared by reacting 1,2-butylene oxide with 1,3 - butanediol in the presence of a basic catalyst. Pharmaceutical compositions comprise the compound I together with a carrier, are useful as cholagogues and are administered orally or parenterally.
Patent GB-654051-A (GB)
IPC: B32B17/08
Abstract: 654,051. Compound glass. COLMORE ADHESIVES, Ltd. Nov. 26, 1946, No. 35023. [Class 140] Laminated glass is made from two or more sheets of glass by coating the surfaces of the glass with an adhesive consisting of, or containing an organic silicon compound prepared as described in Specification 654,049, e.g. polymerized tetra-ethyl orthosilicate, and bring- ing the coated surfaces into contact with a sheet or sheets of cellulose acetobutyrate containing less than 40 parts of plasticizer per 100 parts of cellulose acetobutyrate and maintaining contact until the sheets are united, e.g. in a bath of dibutyl phthalate using elevated temperature and pressure. Specified plasticizers are dibutyl or diamyl phthalate, tricresyl and triphenyl phosphate, and dimethyl and cyclohexanol oxalate. Specification 654,050 and U.S.A. Specifications 2,336,531, 2,336,532 also are referred to.
Patent GB-654996-A (GB)
Abstract: 654,996. Ignition systems. SVENSKA ACKUMULATOR AKTIEBOLAGET JUNGNER. July 5, 1948, No. 18036. Convention date, Jan. 19, 1948. [Class 7(iv)] In internal-combustion engines directly driving tools, comprising a cylinder 1 with a combustion chamber and a spring- returned piston 2 therein and in which the ignition system contains a circuit having a source o current such as a 1.5 volt cell 11, a switchgear 4 to 8 operated by the piston, an induction coil 12 and a sparking-plug 13, the ignition-system is of the type wherein the proportion between the inductance and resistance in the circuit, i.e. the timeconstant of the circuit is at least as great as the time during which the circuit is closed, the inductance being so high that the energy stored in the coil during closing of the system is limited to a sufficient value for a safe ignition whereby the power to the sparking plug for ignition is taken out in the form of a series of comparatively lasting and weak currentimpulses from the source of current, separated by opening-intervals o comparatively very short duration. The piston 2 has a cam curve 4 which permits a contact 7, carried by a roller 5, to disengage from the contact 8 to effect ignition. In a modification, Fig. 2 (not shown), a stud on the piston actuates a springy bar to break the contact. The switchgear may be modified whereby the roller 5 actuates a snapaction switch or is so shaped that it is only influenced when the piston moves in one direction. The Specification as open to inspection under Sect. 91 states that in another form applicable to internal-combustion engines with a rotating shaft, the switchgear, which has a single induction coil and distributer, is controlled by a camshaft operated by the crankshaft of the engine. Opening and closing of the circuit can be obtained by a switch having a contact driven by the motor, the contacts co-operating with a contact roller or brush. This subject-matter does not appear in the Specification as accepted.
Patent GB-686525-A (GB)
Abstract: 686,525. Calculating-apparatus. BOURINET, R. A. June 23, 1948, No. 16875/48. Addition to 686,524. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 27, 1948.] Class 106 (i). In a cam-disc and pinwheel multiplying machine combined with a typewriter, the cam discs are set, according to the multiplicand, in a machine operation, by pins of an intermediate setting device, and a series of denominational racks are set under control of the typewriter figure keys in accordance with the multiplier, the pins of the intermediate setting device being actuated by a set of substantially parallel rods operated by the figure keys and mounted on a fixed support with their ends adjacent the pins in a guide slidable to align the rods with the pins. The invention is applied to the machine described in the parent Specification. Operation of a figure key D, Fig. 1, depresses a corresponding rod 10 which through a linkage pushes a rod 14 and a rod 14a which is operated when any figure key is depressed. The rods 14, 14a are slidably mounted in a fixed frame. The operated rod 14 pushes the corresponding pin 24 of a first denominational row of slidable pins 24 mounted parallel with further rows in a carriage 18 slidable on a rod 19 and guided by a plate 26. The rod 14a operates an escapement device 29 co-operating with a rack 20<SP>1</SP> secured to the carriage 18 so as to advance the latter by one step. The other digits of the amount to be entered are then set on the pins 24 in a similar fashion. During the first cycle of a machine operation, an arm 62a, through a link 82 rocks a frame 67 connected by links 46, 47, Fig. 3, to a rod 45 which is thus raised. The arm 47 releases a latch 49 which holds inoperative a latch bar 42 for a series of toothed racks 36, one for each denomination of the cam-discs. The racks are slidable vertically and urged upwardly by springs 39 against the rod 45, a shoulder on each abutting the operated pin 24 for the corresponding denomination. The carriage 18 carries a zero stop plate 28. When the rod 45 reaches its highest position, a collar 48, Fig. 4, thereon is forced by a spring 56 through an aperture in a plate 53 to move the whole assembly of racks, which is slidable laterally, so that pinions 37 meshing with the racks engage teeth on the cam-discs 92 and set the latter as the rod 45 restores the racks. As the rod 45 nears its home position, a pin 47a in the link 47 releases the latch 49 to allow the bar 42 to lock the racks, and the collar 48 trips a catch lever 57 to release a lever 136 which controls the locking of the cam-discs. The collar 48 is then forced back through a second aperture in the plate 53 by a spring (not shown) connected to the assembly of racks and the catch 57 is freed to enable it later to re-engage a lug 59 in the lever 136 when the latter is restored by a rod 134.
Patent GB-712487-A (GB)
Abstract: 712,487. Calculating-apparatus. NATIONAL CASH REGISTER CO. April 18, 1952 [April 20, 1951], No. 9242/51. Class 106 (1) The record-material carriage of a calculating machine is shifted by an arm pivoted at its upper end to the carriage and at its lower end to the machine frame and slidably engaged by a member rotated at each machine cycle through a pre-determined angle of not more than 180 degrees, the lower axis of the arm and the axis of the member being in the same vertical plane. Column-spacing.-The platen frame 41 may be locked to a bar 44 of the carriage frame in a selected position by engaging an arm 42 in an adjustable stop 43 by means of a hand lever 45. The bar 44 is pivoted to an arm 47, the other end of which is slidable on a pin 50 fixed in the machine frame. A slot in the arm is engaged by a roller 4 in a cam plate 1 rotated during each machine cycle in a clockwise direction through 120 degrees. The carriage is thus tabulated through three columns in successive operations and then returned to the first to repeat the cycle. The cam plate 1 carries on the opposite face to the roller 4, three studs, one of which is engaged during each operation by a sector 12 pivoted on a member 9 eccentrically mounted on a spindle 2 oscillated during each operation by gearing from the main shaft 33 incorporating an overload clutch. A slot in a depending portion 16 of the member 9 is engaged by the fixed pin 50. The arrangement is such that during the first half of an operation, the sector, which is connected by a spring 14 to an extension 10 of the member 9, is moved behind a stud on the plate 1 and during the other half of the operation, the sector engages the stud to advance the cam plate. The latter is formed with three depressions in its periphery which co-operate with a roller 81 in a spring-loaded lever 80 also carrying a stud 82 normally locked in a notch 18 of the member 9 but released when that member is rocked in an operation. The column-spacing mechanism may be rendered inoperative by depressing a hand lever 73 which rocks a member 23 free on the spindle 2 so that when the member 9 is operated, the sector 12 is engaged by a finger 24 on the member 23 and is prevented from engaging the stud on the cam plate 1. Line-spacing.-The platen is line-spaced by operation of a bail 39 by a lever 53, controlled by a cam on the main shaft. However, when the carriage is in its central or left-hand position (as seen in the drawings) a finger on a lever 75 is held beneath the lever 53 to prevent operation thereof. When the carriage moves to its righthand position, a stud 59 adjustably secured in the arm 47 engages a link 63 to rock the lever 75 so as to permit operation of the line-spacing mechanism. When the hand lever 73 is depressed to disengage the column-spacing mechanism, it moves a link 65 to rock the lever 75 so as to permit line-spacing during each operation of the machine. Specification 663,272 is referred to.
Patent GB-2029704-A (GB)
Title: Roller skates
IPC: A63C17/00
Filed: 1978-09-12
Abstract: To overcome lack of flexibility, complication of manufacture and susceptibility to corrosion, a roller skate base 31 is moulded from plastics material and provided with an embedded metal channel section reinforcing spine 21 having apertures 214 formed therethrough to improve the connection between spine 21 and the plastics. Secured to spine 21 is a reinforcing support cross member 211 formed with apertures 212 for securing the fixing belts 35. Downwardly depending members 213, 215 reinforce the connection between axle mounting lugs 32 and the main body of base 31, and axle bearing sleeves 33 are embedded in the lugs 32 wherein they are secured against rotation by radial pins 331. The rear lug 32 is inclined rearwardly to assist the balance of the wearer. <IMAGE>