baber/WOPTO huggingface dataset:
Patent GB-759731-A (GB)
Title: Oxygenated steroid compounds
IPC: C12P33/18
Filed: 1954-11-17
Abstract: 17-Hydroxysteroids are prepared by subjecting 17-desoxysteroids to the action, under aerobic conditions, of an oxygenating enzyme produced by an oxygenating strain of a microorganism of the genus Trichoderma.  The oxygenation is effected either by growing the organism in a nutrient medium in contact with the 17-desoxysteroid, or by adding the steroid to homogenised resting cells which have been separated from the fermentation medium.  In an example a sterilised solution of D 4-pregnene-3,20-dione in propylene glycol is added to a fermentation medium inoculated with Trichoderma species F5-1688, and fermentation continued for 72 hours, when D 4-pregnen-17a -ol-3,20-dione is isolated from the medium by chloroform extraction and purified by paper chromatography. Other examples describe the preparation of D 4-pregnene-17a ,21-diol-3,20-dione, and D 4 - pregnene - 11b ,17a  - diol - 3,20 - dione, using the following organisms, T. album, T. glaucum, T. viride, T. nigrovirens, and T. konigi.  Other 17-desoxysteroids which can be hydroxylated are :-progesterone, D 4-pregnen - 21 - acetoxy - 3,20 - dione, 3 - keto - cholanic acid, lithocholic acid, diosgenin, 5,6-dichloro - diosgenin, D 4 - pregnen - 3b  ol - 20 - one, 5,6 - dichloropregnan - 3b  - ol - 20 - one and 5,6 - dichloropregnan - 21 - ol - 3,20 - dione.
Patent GB-933063-A (GB)
Title: Improvements in means for suspending curtains
Inventor: BERRIDGE AUSTIN EDMUND
IPC: A47H5/032
Filed: 1960-09-28
Abstract: 933,063. Suspending curtains. AUSTIN BERRIDGE Ltd. Sept. 28, 1961 [Sept. 28, 1960], No. 33364/60. Class 52 (5). A curtain fitting set comprises a one-piece board 1 having formed therein straight, parallel sided channels 10, 11 which open at the upper surface la of the board 1 and which wholly accommodate the heads 13 of runners 8, 9, the bottom of the channels 10, 11 being longitudinally and co-extensively slotted, as at 2 and 3, to permit protrusion therethrough of the depending portions 8a, 9a of the runners. Longitudinal grooves 15, 16 are provided to receive and guide an operating cord 7 which passes through bores 13a, 13b in the runner heads and around pulleys 4, 5, and 6. The runners may be moulded in one piece from a plastic, e.g. a high density polythene, the headers 8 having two heads 13 and the trailing runners one head. A top cover 14 is provided.
Patent GB-996907-A (GB)
Title: Apparatus for producing signals responsive to electric current flow
Inventor: KRAMER WERNER
IPC: G01R19/20
Filed: 1961-09-18
Abstract: 996, 907. Current measurement. LICENTIA PATENT VERWALTUNGS-G.m.b.H. Sept. 18, 1961, No. 33370/61. Heading G1U [Also in Divisions H1 and H3] An apparatus for producing signals which indicate the magnitude and waveform shape of a heavy, substantially direct, current i, flowing through a conductor W 1  incorporates a non saturable transformer core II and two saturable transductor cores I arranged in the field produced by the current i 1 . The transductor windings W3 are supplied from an A.C. source U, the alternating current thereafter being rectified by a rectifier bridge R e . The rectified output from this bridge is supplied to a measuring instrument MI which is in series with a winding W 2  electromagnetically coupled to the cores I and II. Thus the current flowing to the measuring instrument contains components proportional to the direct and alternating components of the current i 1 , because of the transductor and transformer actions respectively. In preferred constructions, the cores I and II are laminated and the core II surrounds the transductor I to shield it (Fig. 2, not shown). The crosssections of the cores I are small and a magnetic power amplifier is included in the meter circuit (Fig. 3, not shown). For high accuracy the two transductor windings W3 are subdivided into sections to ensure flux symmetry (Fig. 4, not shown). Furthermore the winding W 2  may also be subdivided into sections mounted around the transductor (Fig. 6, not shown), or alternatively four separate compensating windings (W 2 )may co-operate with four separate A.C. windings (W 3 ) and four separate rectifier bridges Re, the output being taken from the W 2  windings connected in parallel (Fig. 7, not shown). If the apparatus is required to handle D.C. currents of either polarity in the conductor W 1 , two separate transductor systems I must be provided (Fig. 8, not shown).
Patent GB-848916-A (GB)
Title: Improvements in or relating to ladders
IPC: E06C1/12
Filed: 1956-11-02
Abstract: 848,916. Extending ladders. MORRIS; J. Jan. 30, 1958 [Nov. 2, 1956], No. 33506/56. Class 20(2) The uprights of the sections of a telescopic extension ladder each comprise two parallel strips 7 bolted together with the ends of the rungs 9, which are all of the same length, as spacers and stops prevent the ladder sections disengaging. In the ladder shown in Fig. 1 with the sections 5, 6 separated, the upper section 5 is held between the uprights of the lower section 6 by brackets 11 on the section 6 the lower brackets 11 limiting the extension by engaging the stops 16a on the extension 5 the lower end of which engages a rubber stop 16 when the ladder is collapsed. A pawl 14 holds two rungs, one of each section, at each stage of elevation and is operated by an endless rope 12 by which also the ladder is extended. The brackets 11 are adjustable to accommodate the section 5.
Patent GB-393871-A (GB)
Title: Improvements relating to coke pushing machines
IPC: C10B33/10
Filed: 1932-11-28
Abstract: 393,871. Coke discharging rams. STILL, C., Recklinghausen, Westphalia, Germany. Nov. 28, 1932, No. 33631. Convention date, Nov. 28, 1931. Addition to 348,601. [Class 51 (ii).] In the support for coke-discharging rams according to the parent Specification, the connection between the block h of the supporting shoe and the bracket c is modified so that the shoe may oscillate about two horizontal axes, one transversely of the pusher bar a, and the other longitudinally thereof. As shown, the transverse pin d is mounted in a block g having a cylindrical surface n engaging a similar surface o in the upper part f of the shoe. To permit removal and replacement of the block g, the part f is formed with rectangular apertures p, while accidental displacement is prevented by distance-pieces q fitted on the pin d. In the application of the invention to the construction shown in Fig. 3, of the parent Specification, the modified connection is employed between each of the roller shoes s and the lever m.
Patent GB-300653-A (GB)
Title: Means for operating or controlling the ignition advance in internal combustion engines
IPC: F02P5/10
Filed: 1928-11-16
Abstract: 300,653. Ziembinski, S. J. Nov. 18, 1927, [Convention date]. Shaft couplings for timing mechanism.- The shafts 9, 10 are relatively adjusted by means dependent on the suction in the induction pipe of an internal combustion engine. Pivotal bearings 28 on the shaft 9 carry bevel quadrants 29 gearing with the pinion 30 on the shaft 10. The quadrants 29 also carry masses 33 acted on by centrifugal force, and extensions. Plates 32 separated by a ball ring are pressed against the extensions by a fork connected by linkwork to a chamber in communication with the induction pipe. The masses 33 may be replaced by balls lodged between seatings on the extensions and adjoining plate 32. According to the Specification as open to inspection under Sect. 91 (3) (a) differential threads engage the slidable member 8 which is correspondingly internally and externally threaded; or the engagement with one of the shafts may be by means of longitudinal grooves and keys. A ballbearing 7 is placed between the sleeve 8 and the ring connected to the end 5. A spring 6 either within or without the chamber 3 opposes the suction effect. In one modification, Fig. 2, the sleeve 8 is supplemented by a centrifugal device consisting of links 12, 13, masses 14 and opposing springs 15. The masses 14 are disposed on one side or the other of the links 12 according to whether the centrifugal and suction effects are desired to support or oppose each other. This subject-matter does not appear in the Specification as accepted.
Patent GB-393872-A (GB)
Title: Improvements in and relating to devices for removing crown corks from bottles or the like
IPC: B67B7/44
Filed: 1932-11-28
Abstract: 393,872. Stopper-keys. PRINZ, A., 175, Hauptstrasse, Wald, Soligen, Germany. Nov. 28, 1932, No. 33657. [Class 125 (ii).] A device for removing " crown corks " &c. comprises a lever handle 1, a sharp lifting edge 3 and a counter-pressure arm 2. The counterpressure arm is frusto-conical in shape and bears on the edge of the " crown cork." The lifting-edge 3 may be on the opposite side of the loop 2 and a slot 7 may be provided in the handle for engaging the prismatic heads of screw-stoppers.
Patent GB-908516-A (GB)
Title: A process for cementing foils with a poly-carbonate base to foils with a cellulose ester base
IPC: B32B27/00
Filed: 1960-09-30
Abstract: 908,516. Seaming non-metallic sheet material; laminates. AGFA A.G. Sept. 30, 1960 [Sept. 30, 1959], No. 33666/60. Classes 42 (1) and 140. A process for uniting foils of linear polycarbonates to foils of cellulose esters comprises coating the foils at the areas to be spliced with an isocyanate-modified polyhydroxy compound having a molecular weight of at least 20,000 and which is soluble in organic solvents, and pressing together the spliced joint. The isocyanatemodified polyhydroxy compound may be in admixture with cellulose acetate, cellulose butyrate or cellulose acetobutyrate or with a polyisocyanate and the mixture may be used in solution. Alternatively an adhesive foil may be cast from a cellulose ester and the isocyanate-modified polyhydroxy compound, the areas to be joined contacted with an organic solvent and the adhesive foil interposed between the foils and the foils pressed together. The organic solvent may be an alkyl chloride containing up to 3 carbon atoms in the molecule and containing 1 to 5% by weight of a monomeric aryldiisocyanate. Specifications 772,627, 787,592, 800,815, 808,485, 808,629, 834,101 and 891,654 are referred to.
Patent GB-998912-A (GB)
Title: Speed control of a polyphase electric motor
Inventor: CLARKE CHRISTOPHER DOWSE
IPC: H02P23/03
Filed: 1961-09-21
Abstract: 998,912. Control of A.C. motors; inverting. BRUSH ELECTRICAL ENGINEERING CO. Ltd. Sept. 19, 1962 [Sept. 21, 1961], No. 33779/61. Headings H2F and H2J. A starting circuit for a three-phase motor A, B, C, comprises sources DC1, DC2, of undirectional fluctuating voltages of triangular waveform and opposite sign which have a common terminal T connected to the starpoint of the motor. Silicon controlled rectifiers 1-6 constitute an inverter having a smooth A.C. output for application to the stator windings of the motor. The rectifiers are fired in the sequence indicated, and, assuming that the pair 1, 6, has been fired and that the pair 1, 2 is to be fired, it is necessary to extinguish rectifier 6. This is effected by firing rectifier C1 which conveys the charge from capacitor 40 through source 39 to point 38. The capacitor recharges in the opposite direction until the rectifier C1 is self-extinguished. When one of the odd rectifiers is to be commutated, rectifier C2 in series with D.C. source 43 conveys the negative charge on capacitor 40 to common line 44. Variable frequency oscillator 50 is connected to devices 30, 31, associated with sources DC1, DC2, to operate them at its own frequency, and to bi-stable circuit 51 for firing the rectifiers C1, C2, in turn. The oscillator also drives rotary switch 60 through delay device 61, signal pulses of square waveform being supplied from source 62 selectively to gating circuits for each associated pair of rectifiers 1-6. Each of the gating circuits comprise a transformer whose primary winding receives the output from source 62 and which has two secondary windings connected to the respective rectifiers for firing them. The source 62 comprises transistors and diodes associated with a D.C. source to induce a square waveform pulse in the secondary winding of a transformer. In another arrangement, the supplies DC1, DC2 are both positive but phase-displaced. Each phase of a motor may be supplied from a separate source and inverter combination and, while the voltage of one source is increasing, the other is decreasing, the voltages being of triangular waveform. When the motor reaches a given speed, the starting circuit is opened, and the motor is then supplied through an inverter connected to a steady D.C. source.
Patent GB-1387334-A (GB)
Title: Electrical conductors
IPC: H01B12/06
Filed: 1972-07-19
Abstract: 1387334 Super-conductors LINDE AG 19 July 1972 [19 July 1971] 33870/72 Headings H 1A and A4D A super-conducting electric cable comprises super-conducting metal bands mounted on a corrugated tubular non-super-conducting metal carrier or substrate in which individual corrugations run in a circumferential direction. An embodiment, Fig. 3, has super-conducting bands 5 arranged equidistantly around the circumference of substrate 3 and soldered, welded, plated or bonded thereto. In the space between the bands 5 openings 4 are provided for circulation of the refrigerant. In another embodiment (not shown), Fig. 1, the super-conducting metal (2) is embedded in the substrate (1) with holes therethrough at (4). The tubular structure is corrugated in such a way that the cable is flexible and may be transported by drum. In yet another embodiment (not shown), several strips of embedded composite conductors are joined together longitudinally and formed into a tube which is then corrugated.
Patent GB-974733-A (GB)
Title: Improvements relating to electric motor and coupling units
IPC: H02K7/108
Filed: 1959-10-06
Abstract: 974,733. Motor driving arrangements. STAMICARBON N.V. Jan. 4, 1961 [Oct. 6, 1959], No. 33874/59. Addition to 748,679. Heading H2A. An enclosed electric motor driving a load through a slip coupling is cooled by a fan which blows air over both coupling and motor. In the parent Specification, the motor is of flameproof type, but according to this invention the casing is only sealed against fibre or other particles, there being a minute vent round the shaft at each end. Again, in the parent Specification the coupling is of fluid type, whereas in the present case it may be of centrifugally operated friction or centrifugal powder type. Further, the fan may be on the driving or driven component of the coupling.
Patent GB-1065987-A (GB)
Title: Improvements relating to spring clips
Inventor: NELSON JOHN FREDERICK
IPC: F16B5/12
Filed: 1964-08-19
Abstract: 1,065,987. Clips, stud and socket fastenings. ILLINOIS TOOL WORKS Inc. Aug. 19, 1964 [Aug. 28, 1963], No. 33901/64. Heading E2B. A one piece spring clip comprises a head 22 for engaging one panel member and a shank formed by a pair of elongated legs 12 and a pair of reversely bent spring legs 14 laterally spaced from the elongated legs, the spring legs being provided with means for engaging opposite sides of a hole in a second panel member and including outwardly extending portions 20 which are intended to lie between the two panel members to permit inward deflection of the spring legs to enable the clip to be withdrawn from the second panel member. The head of the clip comprises opposed parallel elongated arms 22 with flexible tips 26 for attachment to either a plate member 30 of a moulding clip or to an opposing panel. The spring legs 14 have hook-shaped finger portions 18 to engage the opposite edges of a panel member, the clip being released by pressing these two portions 18 together. For use in attaching a moulding strip the clip is mounted on a plate member 30 which has opposed parallel channels 36 for receiving the arms 22 of the spring clip. Tabs 38, 38' are provided to prevent removal of the clip without forcing the tab 38' downwards. A moulding strip may be engaged over the edge 34 of the plate member.
Patent GB-425331-A (GB)
Title: Improvements in fuel pumps for internal combustion engines
IPC: F02M59/14
Filed: 1933-12-02
Abstract: 425,331. Fuel - - injection pumps. WITKOWSKI, S., 32, Chemin de Grange- Canal, Geneva, Switzerland. Dec. 2, 1933, No. 33913. Convention date, Dec. 2, 1932. [Class 102 (i)] In a multi-cylinder fuel pump operated by a fuel cam 37, the cam is connected to the driving shaft through a slip coupling comprising two parts 8, 38, one of which has projections 38b engaging inclined faces 8b on the other, whereby axial movement of the part 8 rotates the part 38 and cam 37 thereby varying the time of fuel injection. The coupling parts are held in engagement by a spring 14. Axial movement of the part 8 is effected by rotating a ring 12 provided with a projection 3b engaging an inclined slot 9<b> in a ring 9 supporting the member 8. The stroke of the pump may be varied by axial movement of the cam 37 which is effected by rotating a ring 40 having a pin 3<a> engaging an inclined slot in the cam support. The pump units may be of the plunger or, as shown, of the flexible chamber type. The Specification as open to inspection under Sect. 91 describes a cam-operated plunger pump in which the cylinders each have a byepass 22b and are formed in a block 22 which may be moved axially against a spring 27 by rotating a cam 26, thereby varying the quantity of fuel delivered. The time of injection is varied by moving the coupling member 8 axially, thereby rotating the cam 11. This subject-matter does not appear in the Specification as accepted.
Patent GB-1160081-A (GB)
Title: Electrical Thermal Storage Heater
Inventor: WARD ALBERT WALTER
IPC: F24H7/04
Filed: 1965-08-07
Abstract: 1,160,081. Electric storage heaters. MULTITHERM Ltd. 7 Nov., 1966 [7 Aug., 1965], No. 33914/65. Heading F4U. An electric thermal storage heater shown in plan view comprises at least two stacks A, B, C which are spaced apart to provide air flow passages therebetween and are each composed of at least two blocks of heat storing material, the adjacent blocks of at least one stack being provided on the side facing the air flow passage with recesses 34b which co-operate to define a cavity for the reception of an electric heating element 35. As shown stacks A and C are each provided with a cavity and heating element. The stacks are surrounded by blocks 37, 38, 39, 40 of heat insulating material, e.g. calcium silicate, and blocks 37, 38, 39 are surrounded by a sheet of corrugated aluminium 46 and further blocks of rock wool insulation 45. Block 40 is also provided with rock wool insulation 45 which is covered by a metal plate 41 which supports heating element 35. The stacks A, B, C are held in position in a frame having vertical members 23, 28, 29 and horizontal members (Figs. 2 and 3, not shown). members 28, 29 close the sides of the vertical air passages formed between the stacks. The base of the heater includes a blower, a thermostatically operated by-pass valve and inlet and outlet ducts for ambient air (Figs. 2 and 3, not shown).
Patent GB-924836-A (GB)
Title: Method of manufacturing glass fibre-reinforced synthetic resin bolts provided with screw-threads
IPC: B29D1/00
Filed: 1961-09-22
Abstract: A method of manufacturing a glass fibre reinforced synthetic resin bolt comprises providing the surface of a cured bolt core with shallow grooves having a direction component perpendicular to the axis of the core, winding glass fibre threads or strands together with an uncured resin on the core, placing the assembly in a mould having an interior thread, and curing the resin.  The fibre or thread is wound helically on the core, adjacent layers being wound in different directions and the outermost layer having the contour of the thread to be moulded.  The resin may be polyester, epoxy, phenolic, &c.  The windings are placed loosely on the core so that they are easily deformable under the moulding pressure.  The mould possesses a channel adjacent the moulding surface to allow excess uncured resin to drain away.  The core may be of an unsaturated polyester resin or an epoxy resin with longitudinal glass fibre reinforcements.
Patent GB-352866-A (GB)
Title: Improvements in and relating to flexible mounted bearings for high speed motors
IPC: F16C35/04
Filed: 1930-11-11
Abstract: 352,866. Yielding bearing supports. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin.) Nov. 11, 1930, No. 33976. Convention date, Nov. 12, 1929. Addition to 313,628, [Class 12 (i), Bearings &c.]. [Class 12 (i).] The rotor of a spinning centrifugal motor can oscillate about a ball-and-socket joint b arranged in the geometrical centre of the rotor assemblage and is guided by two yielding bearings f, g arranged outside the rotor on one side thereof. The ball member b of the joint is formed on a fixed member a, and the socket is formed by a hood c carrying the inner races of the bearings f, g, and separated from the member a by a rubber ring d. The latter may be replaced by two rubber rings of different degrees of hardness, the softer ring functioning for speeds above the critical speed, and both rings functioning at the critical speed.
Patent GB-1316975-A (GB)
Title: Active balanced modulator
IPC: H03C1/54
Filed: 1970-07-14
Abstract: 1316975 Balanced modulators LICENTIA PATENT - VERWALTUNGS - GmbH 14 July 1970 [14 July 1969] 34086/70 Heading H3R A balanced modulator comprises two active switching elements TS2, TS3, each of which forms a first active element of one of two differential amplifiers respectively and an arrangement, e.g. a centre-tapped secondary of a transformer TR3, for applying a carrier frequency voltage T non-inductively to the second active elements TS1, TS4 of the differential amplifiers. In operation, a sinusoidal carrier voltage applied to the bases of TS1, TS4 to turn them on, produces a reduction of the emitter voltage which turns off the transistors TS2, TS3. In Fig. 2, the second elements TS1, TS4 may be connected up to form a second modulator. Thus two separate signals E1, E2 may be switched at the carrier frequency to form modulated outputs A1, A2. In the embodiment of Fig. 1 (not shown), using the four transistors in a slightly different configuration to form only one modulator, the carrier voltage is applied directly to the bases of TS1, TS4, at whose commoned collector electrodes a rectangular output is derived to drive further modulator stages. In Fig. 3 (not shown), transistors TS1 to TS4 are connected up to form the series and diagonal arms of a double balanced modulator with the modulation signal applied in push-pull via two secondary windings of TR1.