baber/WOPTO huggingface dataset:
Patent GB-775207-A (GB)
Title: Improvements in or relating to carrier-wave modulators
IPC: H03C1/58
Filed: 1954-12-10
Abstract: 775,207. Modulating systems. WESTERN ELECTRIC CO., Inc. Dec. 10, 1954 [Dec. 14, 1953], No. 35807/54. Class 40(5) In a switching type modulator (e.g. ring type) a pulse producing gate circuit is employed to modify the carrier derived switching function (Fig. 2a) to the form shown in Fig. (c), expressible as a function 1/n sine n#K cosine nx where n is an odd integer, so that if K = 1/n, the nth as well as second harmonic of the carrier is suppressed, i.e. if K=1/3, third harmonic is suppressed. The gate circuit may comprise a variable loss multiplicative circuit 7 (Fig. 3) before or after the modulator controlled by pulses of twice carrier frequency as shown at E4, Fig. 2d, derived from a full wave rectifier circuit 8 with the carrier as input, and output passed over an adjustably back biased series diode. Alternatively the gate may be at the carrier input to the modulator. Also the pulses may be derived from a multivibrator or blocking oscillator. Several gates in cascade may remove different harmonics. Specification 630,088 is referred to.
Patent GB-1074913-A (GB)
Title: Light-sensitive copying material
IPC: C07D209/14
Filed: 1965-08-20
Abstract: Condensation products of aldehydes or aldehydes and secondary amines with 5-membered heterocyclic nitrogen compounds which may be substituted or form part of a fused ring system are prepared by condensing the reactants in alcoholic solution in the presence of acid catalysis.  Mixed condensation products may be produced if two heterocyclic compounds are used.  Specified heterocyclic compounds are indoles, pyrroles, pyrazoles, imidazoles, 1,2-substituted pyrazolones, triazoles and tetrazoles and substituted compounds thereof.  Specified aldehydes are benzaldehyde and substituted benzaldehydes, cinnamaldehyde and substituted cinnamaldehydes, indole-3-aldehyde, aldehydes with 1-4 carbon atoms in an alkyl chain and 3,4 - (methylene - dioxy) - benzaldehyde.  Specified secondary amines are dialkylamines, aryl alkyl amines and heterocyclic amines such as piperidine, pyrrolidone or morpholine.
Patent GB-1005511-A (GB)
Title: Arrangement for the supply of electric power to a rail travelling carriage
IPC: B66C13/12
Filed: 1963-09-12
Abstract: 1,005,511. Taking up slack in cables. S. MUNCK, T. MUNCK, O. MUNCK and F. MUNCK, [trading as SVERRE MUNCK ELECTRO-MEKANISK INDUSTRI]. Sept. 12, 1963 [Sept. 12, 1962; July 6, 1963], No. 36965/63. Heading B8B. An apparatus for taking up the slack in cables joining a fixed anchorage 11 to an anchorage 10 on a movable carriage 19 is of the kind comprising an intermediate carriage around which the cables are wrapped and which, in use, moves at half the speed of the carriage 19. The intermediate carriage has end rollers 13 and 14, one at each end, and may have support rollers 17 mounted atop the carriage between the end rollers. There are two sets of cables 18 and 18a passed from anchorage 11 over end rollers 14 and 13 respectively and thence over rollers 17 to the anchorage 10. Each set of cables constitutes a band of parallel conductors formed either by embedding the cables in a continuous flexible, e.g. rubber, belt or by holding them together by blocks 23, Fig. 3, e.g. of neoprene, through which they are loosely threaded. Besides conductors 12 the band may include strain-taking elements 22 of steel wire. These elements are secured in some of the blocks 23 by conical wedges 28 but are loosely fitted in other blocks 23 and are surrounded by tubular spacers 26 between successive blocks. At the anchorages 10 and 11 the cable bands are held by clamps (Figs. 6 to 8, not shown) which grip the portions of the bands carrying the strain-taking elements.
Patent GB-1212833-A (GB)
Title: Improvements in means for fixing tiles
Inventor: DAVID HENRY ROBERT
IPC: E04F13/08
Filed: 1967-08-04
Abstract: 1,212,833. Tiling. HEREFORD TILE Ltd. 30 Oct., 1968 [4 Aug., 1967], No. 35998/67. Heading E1B. In a method of securing tiles to a wall 2, a honeycomb sheet 1 of rigid plastics having apertures 1b in the cells is applied to an adherent backing mass 3 some of which passes through the apertures and onto which the tiles are pressed. Each cell may have any number of apertures.
Patent GB-1131448-A (GB)
Title: Improvements in or relating to grinding machinery
Inventor: SUMNER ALBERT
IPC: B24B41/04
Filed: 1967-08-05
Abstract: 1,131,448. Grinding. F. E. ROWLAND & CO. Ltd. 5 Aug., 1967, No. 36041/67. Heading B3D. A grinding machine comprises a base 10 having a wheelhead 11 slidably mounted thereon for axial movement and including a shaft 13 adapted to carry a grinding wheel 14, and a cylindrical sleeve 16 surrounding the shaft and supported on the base by means 17 permitting adjustment of its axial position, the end of the sleeve remote from the grinding wheel defining a stop for abutment by a part of the sliding wheelhead to limit inward movement of the wheelhead. The means 17 consists of a nut in screwthreaded engagement with the sleeve and rotatably supported in a housing 21 integral with the base. A gear 18 rotatable by a worm 20 is connected by a spline 19 to the nut. The wheelhead is movable on the base by a pair of hydraulic cylinders 22. The forward movement of the wheelhead is limited by engagement of the stop comprising the end of the sleeve 16 with the wall of the casing 12 of the wheelhead, the sleeve being axially adjustable by the nut 17 to compensate for wear of the grinding wheel. Thus similar arrangements axially aligned may be used in an in-feed grinding machine.
Patent GB-1367599-A (GB)
Title: Valve arrangement
IPC: A61M16/20
Filed: 1973-07-30
Abstract: 1367599 Valves AGA AB 30 July 1973 36078/73 Heading F2N [Also in Division A5] A valve arrangement for use in a system for spontaneous and artificial respiration, comprises first and second transfer parts 6, 5, Fig. 1, and an exhaust port 7. In use, gas from aspiration line 15 and supplementary gas line 16 forces valve disc 2 to the position shown and flows into a compressible reservoir 14 via gaps between supports 4. When the reservoir is full the consequent build up of pressure in chamber 1 opens check valve 10 to exhaust excess gas to atmosphere. By compressing the reservoir 14 the gas therein forces the disc 2 upwardly against seatings 8, 9 thereby isolating exhaust port 7, and opens ancillary valve 3 through which it flows back to line 15 and thence to the patient. Thereafter, if the reservoir 14 is held compressed the supplementary gas forces disc 2 away from seatings 8, 9 to exhaust excess gas through the check valve 10. The latter may be replaced by a throttle communicating with an open reservoir. In an alternative embodiment, Fig. 5 (not shown), the valve disc is replaced by an apertured diaphragm.
Patent GB-1511868-A (GB)
Title: Process for conditioning bacterial cells containing glucose isomerase activity
IPC: C12N9/92
Filed: 1975-09-02
Abstract: 1511868 Isomeration of dextrose MILES LABORATORIES Inc 2 Sept 1975 [3 Sept 1974 7 July 1975] 36131/75 Heading C2S [Also in Division C3] Fructose is produced by contacting an aqueous dextrose solution with bacterial cells having glucose isomerase activity which have been conditioned by a process which comprises: (i) mixing said bacterial cells with an aqueous dextrose solution of water at a temperature of 10 to 27C. and at a pH of about 8, as measured at 25 C., until the cells are hydrated and. pH equilibriated (ii) treating the cells obtained in (i) by a process which is selected from (I) passing an aqueous dextrose solution on up through a bed of said bacterial cells at a temperature of about 60 C. and at a pH of 7À5 to 8À0, as measured at 60 C., until the effluent is clear and the pH thereof is stabilized at 7À5 to 8À0, as measured at 60 C., or (II) passing water at a temperature of 10 to 27 C. and at a pH of 8À0, as measured at 25 C., up through a bed of said bacterial cells until the the effluent solution is clear and the pH thereof is stabilized at 8À0 as measured at 25C., followed by passing an aqueous dextrose solution at a temperature of about 60 C. and at a pH of 7À5 to 8À0, as measured at 60 C., until the effluent solution has the same dextrose content as the entering dextrose solution. -
Patent GB-361135-A (GB)
Title: Improvements in or relating to the destructive hydrogenation of carbonaceous materials in the liquid phase
IPC: C10G1/06
Filed: 1930-12-02
Abstract: <PICT:0361135/III/1> In liquid phase destructive hydrogenation in two or more stages at increasing temperatures, the first stage is carried out in a vertical cylindrical vessel, and the second in an annular vessel surrounding this.  A preheated coal and oil mixture enters the reaction vessel 1 by a pipe 4; preheated hydrogen enters by pipe 5. Gaseous products of reaction are withdrawn by pipe 7.  Liquid products flow down the annulus 2 to a second annular vessel 3 to which fresh hydrogen is supplied by a pipe 11.  Liquid products are withdrawn by pipe 6 and vapour products by pipe 13. Additional carbonaceous liquid can be introduced by pipe 18. Suitable temperatures are 420-440 DEG  C. in the first stage and 450-480 DEG C. in the second.  The temperature of the annulus is maintained either by the heat of reaction or by the introduction of hydrogen heated to 500 DEG  C.  Catalysts may be used in suspension in the paste, or in massive form in the reaction vessel.
Patent GB-630704-A (GB)
Title: Process for the manufacture of new fluoranthene derivatives
Filed: 1946-12-11
Abstract: 1 : 2 : 3 : 4 - Tetrahydrofluoranthenes and alkyl derivatives thereof containing an aminoalkyl group in the 1-position are made by reacting an alkyl halide which contains a disubstituted amino group or a halogen atom or hydroxyl group which may be replaced by an amino group or a group which may be converted into an amino group by hydrolysis or reduction, with a 1 : 2 : 3 : 4 - tetrahydrofluoranthene in which the hydrogen atom in the 1-position is replaced by a metal, or with a 1 : 2 : 3 : p 4-tetrahydrofluoranthene in the presence of an agent capable of forming such a derivative and when necessary, exchanging for or converting to an amino group the substituent so exchangeable or convertible.  The new products may, if desired, be converted into their quaternary compounds or into their salts with hydrochloric, sulphuric or phosphoric acids.  As starting materials there may be used 1 : 2 : 3 : 4-tetrahydrofluoranthene and substitution products thereof.  The alkyl group of the aminoalkyl halide may be straight or branched or may form part of a ring and the disubstituted amino group thereof may contain as a substituent an aliphatic, alicyclic araliphatic or heterocyclic radical or the nitrogen atom may form part of a ring, e.g. piperidine or morpholine.  Substituents convertible to amino by hydrolysis or reduction are for example acylamino or nitrile groups. Alkylation is preferably carried out in an inert solvent, e.g. toluene, benzene, xylene, nitrobenzene in the presence of an inert gas if desired.  Agents capable of forming metal derivatives include the alkali and alkaline earth metals and their amides, hydrides, hydrocarbon compounds or alcoholates.  The quaternation of the products may be brought about by treatment with alkyl halides, alkenyl halides, aryl sulphonic acid esters, dialkyl sulphates or aralkyl halides.  The products are used as therapeutic agents.  In examples there are prepared according to the invention 1 : 2 : 3 : 4 - tetrahydrofluoranthenes containing as substituent groups in the 1-position b -diethylamino ethyl-; N-methylpiperidyl - (3) -; b  - dimethylamino - ethyl-; b  - piperidino - ethyl; g  - piperidino - propyl; b  - morpholino - ethyl -; g  - morpholinopropyl -; g  - diethylamino - propyl -; b -amino - ethyl -; g  - amino - propyl -; b -methylamino - ethyl - and g  - methylaminopropyl-.  1-(b -Diethylamino-ethyl)-2 : 2 : 4- trimethyl-1 : 2 : 3 : 4-tetrahydrofluoranthene is also prepared.  The products may be converted to the quaternary salts by treatment with, e.g. methyl bromide.
Patent GB-980682-A (GB)
Title: Improvements in or relating to a.c. power regulation systems
Inventor: PELLY BRIAN RAYMOND
IPC: H02H9/04
Filed: 1960-10-27
Abstract: 980,682. Automatic regulation. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. Oct. 18,1961 [Oct. 27, 1960], No. 36871/60. Headings G3R and G3X. [Also in Division H3] A power regulating system for supplying a potential, and for limiting voltage surges outside a permitted range comprises a pair of rectifiers connected in inverse parallel, at least one of which, T, is controllable; a potential divider R, # connected in parallel with the two rectifiers T, D1; and a Zener diode D2 connected between the tapping point of the potential divider and the gate of the controllable rectifier. An excessive positive voltage at A causes the Zener diode D2 to conduct and fire the controlled rectifier T. The rectifier D1 may be replaced by a second controlled rectifier, Fig. 1 (not shown) the trigger electrode of which is taken via a second Zener diode to another tapping point on the resistive potential divider between A and B. In a circuit disclosed in the Provisional Specification two controlled rectifiers are connected in inverse parallel, each being triggered by the potential developed across a rectifier connected in series with the anode/cathode path of the other controlled rectifier. Triggering may alternatively be effected via secondary windings of a transformer the primary of which is connected between the points A, B.
Patent GB-1470976-A (GB)
Title: Combined steering column lock and fuel supply control for a motor vehicle
IPC: B60R25/00
Filed: 1973-08-03
Abstract: 1470976 Preventing unauthorized use of vehicles CHRYSLER UNITED KINGDOM Ltd 18 July 1974 [3 Aug 1973] 36990/73 Heading B7J [Also in Division F2] In a combined steering column lock and fuel supply control of which the lock has a rotatable key operated locking element, the control comprises a fuel supply valve which is operated by a lever member 26, movable against the bias of a spring 32 acting in an over centre manner between the "on" position shown in which the valve is open and an "off" position in which the valve is closed, provided with means actuated by rotation of the locking element to move member 26 to the "on" and "off" positions respectively when the lock is released and engaged. From the "on" position shown, key rotation opens a rotary valve to admit pressurized air through an inlet 12 into a pneumatic ram 10 and thus force a piston 14 along the ram against a spring 19. A rod 15 carried by the piston 14 is slidably received within a core 23 of a solenoid 21, the core 23 being engaged by a shoulder 16 of the rod 15 and supporting a toggle mechanism including the lever member 26 and spring 32. The above-mentioned piston movement displaces the core 23 with the rod 15 so that member 26 is changed over to the "off" position in which the vehicle is inoperative. After a period of time, loss of air pressure allows the piston 14 and rod 15 to return to the position shown under the action of spring 19, but core 23 and lever member 26 remain in the "off" position until key rotation closes a switch (not shown) to actuate the solenoid. On its return to the "on" position, the core 23 opens a switch formed by a fixed contact 33 and a contact 34 carried on a spring member 35, thus de-energizing the solenoid. In addition, means such as a latching device, Figs. 5 and 6 (not shown), may be provided to prevent accidental movement to the "off" position such as by vibration during vehicle operation. Reference is made to Specification 35888/73 (pending).
Patent GB-1373355-A (GB)
Title: Apparatus for winding wire and the like on to and unwinding it  from a rotating drum
IPC: B65H59/38
Filed: 1972-11-03
Abstract: 1373355 Longitudinally tensioning webs B & F CARTER & CO Ltd 3 Nov 1972 [6 Aug 1971] 37081/71 Heading B8R [Also in Division G3] A control system for keeping constant the linear speed and/or tension of a web being wound on to a drum whose speed is adjusted in accordance with the position of a pair of nip rollers one of which is rotated at constant speed. As shown in Fig. 1, the nip rollers 5, 6 are mounted in a rail mounted carriage that can move in the direction of movement of the web. The roller 6 is driven at constant speed by drive unit 10 which is coupled to a variable speed gear 3 driving drum 2. As the diameter of the coil on drum 2 changes the carriage 7 will move and through linkage 13 cause gear 3 to alter the speed of the drum. The arrangement may be used when unwinding web from a drum. In Fig. 3 the web is passed around the periphery of a freely rotatable roller 33 and driven by a rotated roller 34. When the tension changes roller 34 moves around the periphery of roller 33 so that arm 37 is displaced to alter the speed of the drum. Instead of rollers a pair of endless belts may be used to provide the web drive, Fig. 2 (not shown). In a combined wire twisting and coiling arrangement, Fig. 4 (not shown), the drum is driven by a shunt motor whose supply voltage is varied by the nip roller arrangement.
Patent GB-352883-A (GB)
Title: Improvements relating to plate-type gasholders
IPC: F17B1/04
Filed: 1930-12-09
Abstract: 352,883. G a s holders. BAMAGMEGUIN AKT.-GES., 10, Reuchlinstrasse, Berlin. Dec. 9, 1930, No. 37134. Convention date, April 28. [Class 54.] The lower part of the wall 3 of a gas holder of the disc type is formed with an opening 5 to allow the inspection and repair of the packing 11 on the disc 10 when the disc is in its lowest position. The opening 5, which may be bridged by webs or struts 4, is normally closed by plates 6 provided with liners 7 fitting in the ports of the opening. The plates 7 are bolted to strengthening strips 9 surmounting the opening 5. The liners may be offset relatively to the plates so that adjacent plates and liners overlap when in position. The disc is sealed when in its lowest position to prevent the escape of gas when the opening is uncovered by a depending ring 12 dipping into a water trough 13. The water trough may be displaced from the wall 3 so as to leave a space in which lubricant &c. may collect.
Patent GB-1393907-A (GB)
Title: Laser devices
IPC: H01S3/094
Filed: 1972-08-09
Abstract: 1393907 Lasers SIEMENS AG 9 Aug 1972 [13 Aug 1971] 37134/72 Heading H1C In a laser system in which the active medium SM of a first laser L1 is end pumped by a shorter wavelength output of a second laser L2, a double prism DP is used to introduce the pumping radiation into the optical path of the first laser, the dispersion of this prism being selected to be sufficiently high as to reflect the incident pumping radiation by total internal reflection while the first laser radiation is transmitted without significant directional change. The pumping radiation is focused by an optical system O on to the end of the active medium SM remote from the prism, and the output frequency of the pumping radiation incident on the active medium is determined by rotating the double prism DP and an optical wedge or reflector P3. The first laser may comprise a rhodamine or other liquid dyestuff active medium contained in a tubular body and providing a red wavelength output 11 from a resonator comprising a plane mirror S1 and a concave mirror S2. A green wavelength pumping radiation is used, this wavelength being obtained by using a lithium niobate crystal to frequency-double the output from a YAG active medium of the pumping laser.
Patent GB-934088-A (GB)
Title: Improvements in or relating to abrasive-blasting systems
Inventor: MEAD WILLIAM HOWARD
IPC: B08B15/00
Filed: 1961-10-17
Abstract: 934,088. Ventilating. VACU-BLAST Ltd. Oct. 17, 1961, No. 37143/61. Class 137. [Also in Groups XXIII and XXVIII] A floor 18 for an abrasiveblast room 11, preferably having downdraught ventilation, comprises a multiplicity of small hoppers 19 arranged in rows adjacent conveying ducts 21 the lower level of which is substantially in the same plane as the bottom of the hoppers; an orifice 20 on at least one side of each hopper 19 connects the hopper to an adjoining duct 21 and provides for the passage therethrough of the ventilating air and the spent abrasive and resulting debris, the latter being carried through the ducts 21 by the ventilating air stream. The abrasive is separated from the air stream in a concentrator 22 from which it is drawn through a conduit 27 by means of a fan 28 associated with a cyclone reclaimer 23, e.g. a centrifuge. The air stream, in which dust is entrained, is drawn by a fan 26 from the concentrator 22 to a dust separator 25, e.g. a bag filter or wet precipitator, the cleaned air from which is exhausted to atmosphere or recycled to the room 11; air from the reclaimer 23 passes from the latter through conduit 29 back to the concentrator 22 to join the main air stream. The floor 18 is preferably provided with an overlying perforated steel plate 17; alternatively, the floor may be provided with a wire mesh. The hoppers 19 are formed by a series of parallel longitudinal members 35 having cross-sections of inverted V-shape, the members 35 being welded to a base-plate 38 and secured in the troughs formed therebetween, e.g. by welding, are diamond-shaped partitions 43. The ducts 21 are formed by the underside of alternate members 35; if required, at least some of the other members 35 may all be used as conveying ducts, the adjacent hoppers being accordingly provided with additional orifices. The orifices 20 vary in size from one end of each duct 21 to the other, to ensure uniformity of air flow velocity through the orifices. The members 35 have openings 48 leading into the ducts 21 at the upstream end thereof; the openings 48 are protected by a baffle 46 thus ensuring an initial flow of air through the ducts 21. The flow cross-section of each of the latter increases progressively from the upstream end to the downstream end, a vertical V-shaped filler portion 50 being provided to which is attached a covering portion 56. The outlets 65 of the ducts 21 terminate in the lower part of the concentrator 22, the air stream being deflected upwardly by a plate 67 which may have a wearing surface 70 of rubber. A twisting path for the air stream is provided by baffles 71, 72 vertical baffles 75 being provided along the length of the concentrator 22 to ensure air flow in an upward direction. The abrasive separating from the air stream is caught by a row of spaced, inclined troughs 80 which deliver the abrasive through apertures (not shown) into a collecting duet 82 which is connected to the conduit 27. Specification 794,528 and U.S.A. Specification 2,912,918 are referred to.
Patent GB-324480-A (GB)
Title: Improvements in machines for screw-stoppering bottles
IPC: B67B3/20
Filed: 1928-12-17
Abstract: 324,480. Hopkins, E. C. Dec. 17, 1928. Stoppering.-In a machine for securing screwstoppers to bottles by axial pressure on an archimedian screw, cylinders b carried on a base rotated from a pulley d operate plungers a carrying bottle-rests a<1>. The plungers are reciprocated by fluid pressure. Each bottle-rest cooperates with a head d<3> with screwed stem engaging a nut in a member e. Slip workers in the heads d' prevent breakage of bottles. Star wheels may be used for feeding bottles to and from the machine.
Patent GB-1509669-A (GB)
Title: Sun visor
IPC: B60J3/02
Filed: 1976-09-08
Abstract: 1509669 Sun visors W ZIPPERLE 8 Sept 1976 [18 Sept 1975] 37210/76 Heading B7J A hinged and pivotable sun visor, including a deformable plastics padding carrier 3, has a hinging spindle 6 formed with a ball 7 which is clamped between cups 23, 24 of a one-piece plastics clamp. Carrier 3 has integral elements 15 to receive the pins of a push-on mirror.