baber/WOPTO huggingface dataset:
Patent GB-970490-A (GB)
Title: Improvements in particulate material transfer systems
IPC: B01J47/10
Filed: 1962-02-06
Abstract: Particulate mixtures of materials such as a monobed of ion-exchange resins are transferred from one treatment zone to another regeneration zone by fluidizing the material with a liquid and a gas and pressurizing the resultant fluidized mass by means of gas under pressure to drive the fluidized mass from the first to the second zone.  U.S.A. Specifications 2,605,084 and 2,771,424 are referred to.ALSO:Particulate mixtures of materials such as a monobed of ion-exchange resins used in sugar refining are transferred from a treatment first zone to a regeneration second zone by fluidizing the material with a liquid and a gas, and pressurizing the resultant fluidized mass by means of gas under pressure to drive the fluidized mass from the first to the second zone.  U.S.A. Specifications 2,605,084 and 2,771,424 are referred to.
Patent GB-1095961-A (GB)
Title: Implement for introducing granular or pulverulent material into the soil
IPC: A01B19/06
Filed: 1966-02-02
Abstract: 1,095,961. Agricultural implements. H. VISSERS. Feb. 2, 1966 [Feb. 5, 1965], No. 4537/66. Heading A1B. A reciprocating harrow comprises tines 7-10 mounted on beams 2-5 which are transversally reciprocated and a trough provided with openings 13 and fed from a hopper 14 is mounted on the front beam 2 to reciprocate therewith. The bottom of the trough is inclined from the centre to the sides and the bottom may be provided with an interchangeable insert of which the apertures have a different diameter.
Patent GB-724942-A (GB)
Title: Improvements in or relating to frequency-control systems
IPC: H03L7/16
Filed: 1953-02-18
Abstract: 724,942. Automatic frequency-control systems. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Feb. 18, 1953 [Feb. 21, 1952; Feb. 7, 1953], No. 4543/53. Class 38 (4). A high-frequency oscillator I tunable in steps is held at its set frequency by comparison with a reference pulse generator 2, 3 and an interpolation oscillator 4. The latter is adjusted in small steps to such a frequency that when mixed at 6 with the output of the controlled oscillator 1, the mixer output should comprise a harmonic of the pulse oscillator 2, 3. This output is selected by a tuned amplifier 7, ganged to the tuning-control of the oscillator 1, and is fed to a mixer or gate 8 which is normally blocked but is opened by each pulse from the source 3. If there is a frequency error, a slow beat is produced by the mixer 8 which is fed through a low-pass filter 9 to a frequency controller 5 associated with the controlled oscillator 1. In this way, the oscillator 1 is brought accurately to the frequency at which it had been approximately set by a calibrated click-knob or like device, and is thereafter maintained at that frequency. A frequency doubler or multiplier 10 may be interposed between the oscillator 1 and the mixer 6. In a particular case, the controlled oscillator is adjustable between 1500 and 2500 kc/s. in coarse steps of 100 kc/s. and finer steps of 10 kc/s., the pulses have are petition frequency of 200 kc/s., and the interpolation oscillator 4 is accurately tunable in 20 kc/s. steps from 100 to 300 kc/s. If the oscillator 1 is to be stabilized at, say, 1890 kc/s., the oscillator 4 is set to 180 kc/s., so that the output from the mixer 6 is 3780 Œ 180 kc/s., of which 3600 kc/s. is passed by the tuned amplifier 7 to the mixer 8. This frequency beats with the 18th harmonic of the 200 kc/s. pulses, and gives a zero beat when accuracy is attained, as described in Specification 640,351. Output may be taken through the switch 12, either from the oscillator 1, or the multiplier 10. In order to ensure initial locking, the frequency of the oscillator may be swept through a limited range, as in Specification 685,991, by providing a feedback circuit round the reactance tube 5 through an amplifier 11. The feedback becomes inoperative as soon as stabilization occurs. As an alternative method of effecting the frequency sweep, the interpolation oscillator 4 may be frequency-modulated.
Patent GB-1490572-A (GB)
Title: Builders scaffolding
IPC: E04G5/00
Filed: 1975-04-17
Abstract: 1490572 Scaffolding joints G K N MILLS BUILDING SERVICES Ltd 17 April 1975 [31 Jan 1974 (2)] 4558/74 and 04560/74 Addition to 1470968 Heading F2M [Also in Division B8] Sockets 61, 63 for attachement to a scaffolding upright are formed by channel members 61, 63 welded on opposite sides of a scaffold clamp 51.
Patent GB-681389-A (GB)
Title: Adrenal gland stimulating concentrate and method for the preparation thereof
IPC: A61K38/35
Filed: 1950-02-22
Abstract: A process for preparing an adrenal gland active stimulating substance in which pituitary glands are extracted with a solvent and a concentrate of the active substance with posterior pituitary contaminants therein obtained, is characterised by the fact that the concentrate is subjected to acid hydrolysis to an extent of at least equal to boiling the acid concentrate solution at a pH of 1.5 for 2 1/2 hours.  In one example, frozen hog pituitary glands are ground with ice, treated with aqueous acetone and hydrochloric acid and rapidly thawed (20 minutes).  The pH is adjusted to 1.5, agitated for 1 hour with 78 per cent acetone allowed to settle and centrifuged. The residue is treated with aqueous HCl to pH 1.42, then with acetone and is centrifuged. The combined centrifugates treated with acetone to an acetone concentration of 92 per cent are allowed to settle at 5 DEG  C. for 2 days and the precipitate dried.  The powder is extracted with M/10 dibasic sodium phosphate at pH 7.7, temperature 5 DEG  C., and centrifuged.  The extraction step is repeated twice. Ammonium sulphate is added to the combined extracts having a pH 6.95 to 50 per cent saturation, the precipitate settled at -5 DEG  C. and the precipitate centrifuged.  The precipitate is suspended in distilled water and dialyzed.  The dialyzed adrenocorticotrophic material is adjusted to pH 1.3 with HCl and boiled at 100 DEG  C. for 2 1/2 hours.  After cooling and adjustment of pH to 8.1, the liquid is dialyzed against distilled water and the dialyzed solution lyophilized to a dry powder having a potency of 230 per cent of standard, oxytocin content 0.02 m /mg and vasopressor 0.06 m /mg. The rate of rapid thawing prior to extraction is preferably from 20 minutes to one hour.  In the extraction step, the dibasic sodium phosphate may be replaced by sodium chloride, ammonium sulphate or monosodium phosphate.  Sodium chloride may replace the ammonium sulphate in the ammonium sulphate precipitation step.  The dialysis step may be replaced by a pH precipitation step.  The whole pituitary glands or the anterior pituitary glands of the hog, sheep, cow or whale may be used.
Patent GB-882263-A (GB)
Title: A method for the production of citric acid
IPC: C07C59/265
Filed: 1960-02-09
Abstract: Citric acid is recovered from the alkali metal citrate obtained in either stage of the process of the parent Specification by passing an aqueous solution of said alkali metal citrate through the second chamber of a four-compartment electrodialysis cell which is formed by successive arrangement of a stainless steel cathode, a permselective cation exchange membrane, an anion exchange membrane, a cation exchange membrane and a graphite anode, the cathode compartment of said cell being filled with substantially 2N alkali metal hydroxide, the neighbouring second chamber containing said citrate solution, the next following chamber being fed with a solution of pure citric acid, and the anode compartment being filled with substantially 1N sulphuric acid, whilst passing a direct current through said cell, whereby the alkali metal ions of said citrate solution pass the first mentioned cation exchange membrane to form alkali metal hydroxide at the cathode and the citrate anions pass the anion exchange membrane to raise the concentration of citric acid in its compartment from which it is drawn off as the product of the method.
Patent GB-1277707-A (GB)
Title: Improvements in or relating to loose leaf binders
Inventor: LAWES MICHAEL JOHN ANTHONY
IPC: B42F11/02
Filed: 1971-02-12
Abstract: 1277707 Index tabs M. J. A. LAWES 20 May 1971 [12 Feb 1971] 4605/71 Addition to 1243752 Heading B6E A loose-leaf binder as described in the parent Specification has its spine modified to provide an index window or windows 5, 6 through which may be displayed index labels 7, 8. Windows 5, 6 are produced simultaneously with welding the peripheral seams along the covers by providing the apparatus with two additional welding electrodes. On removal of the portions 9 defining the windows 6 labels are located between the flat inner spine 4 and the curved outer spine 3, the width of the labels 7, 8 being such that they assume the curved configuration of'the spine. The labels may be of transparent plastics material and the legends imprinted on the side facing the inner spine to protect the legends against soiling.
Patent GB-632680-A (GB)
Title: Improvements in connecting thermoplastic bodies together
IPC: B29C65/44
Filed: 1947-02-18
Abstract: 632,680. Hand tools for stapling. TIMMERBEIL, E. R. Feb. 18, 1947, No. 4655. Convention date, Feb. 13, 1946. Drawings to Specification. [Class 89 (iii)] [Also in Group VIII] For connecting together thermo-plastic materials, a hand stapler is provided with a gas jet for heating the staples in their passage from the magazine to the work.
Patent GB-286862-A (GB)
Title: Improvements in or relating to volatile deodorizing or disinfecting blocks
IPC: A61L9/12
Filed: 1927-02-19
Abstract: 286,862. Lipton, B. Feb. 19, 1927. Disinfectants and deodorants. - Naphthalene or other volatile disinfecting blocks are formed with concave external surfaces so as to increase the surface area and the rate of evaporation. The blocks may be of various cross sections such as are shown in Figs. 2, 3, and 4, or a cubic block 10, Fig. 6, may have semi-spherical or other shaped cavities 11 on some or all of its surfaces. One or more holes or passages may be formed in the blocks to further increase the exposed surface.
Patent GB-215845-A (GB)
Title: Improvements in or relating to the briquetting of ores
IPC: B30B15/00
Filed: 1923-02-17
Abstract: 215,845. Beasley, W. H., Edser, E., and Minerals Separation, Ltd. Feb. 17, 1923. Briquetting and agglomerating processes.-A process of making briquettes from finely divided metalliferous matter and carbonaceous matter consists in flocculating the latter in water by agitation with a liquid hydrocarbon binding medium, separating the flocculated material from water, mixing it with the metalliferous matter and subjecting the mixture to pressure, preferably with the application, before pressing, of heat as, for instance, live steam. In an application to the reduction of zinc oxide to metallic zinc, the carbonaceous matter may be anthracite, bituminous coal or coke; or coal as obtained in the processes described in Specification 122,454 and 159,285, [both in Class 82 (ii), Washing granular &c.], may be used. The process is also applicable to haematite concentrates obtained as described in Specification 206,5'65. Specifications 185,216, 189,220, 189,221. [all in Class 82 (ii), Washing granular &c.], are also referred to.
Patent GB-226140-A (GB)
Title: Improvements in apparatus allowing liquid to pass only in one direction
IPC: B65D49/04
Filed: 1924-02-25
Abstract: 226,140. Gallaz, L. A. H. Dec. 15, 1923, [Convention date]. Bottles, non-refillable.- Relates to apparatus for use. with bottles, and which will allow liquid to pass through it in one direction only. A casing a, Figs. 1 and 3 is apertured at b. c and contains two cylinders g, h secured therein by a plug i. The cylinder h has apertures therein and the cylinder g encloses a valve j bearing on the plug i and free to turn on an axis at right angles to the axis of the casing when the cylinder g has moved. The outer snrface of the casing is formed with notches d and a helical groove f for screwing into a bottle neck and with a weakening groove e so that an attempt at forcible removal will break the casing. An outer closing device comprises a cap p sliding over the casing and a weight q on a stem r. An inner closing device, Fig. 17, is described, comprising a member s disposed upon the plug i, and in another form, Fig. 19, a member u is guided by two stems v extending through the plug i and a weight w is guided on a stem. The apparatus is made of porcelain, glass, &c. Upon inverting the bottle containing the apparatus, the bottle will be emptied, the cylinders g, moving away from the plug i to uncover the apertures b, c whilst the valve j opens. When the bottle is placed upright, the valve j closes and the cylinders return to their initial position and liquid cannot enter the bottle. If an attempt is made to cause liquid to enter the bottle by shaking it, the action of the weight q or w will cause the part p to close the apertures c or the part u to close the cylinder g. The Specification as open to inspection under Sect. 91 (3) (a), describes also the application of the invention to cocks and taps. This subjectmatter does not appear in the Specification as accepted.
Patent GB-551610-A (GB)
Title: Improvements in or relating to laminated articles and their methods of manufacture
IPC: D21H21/52
Filed: 1941-04-12
Abstract: 551,610. Synthetic resins. PILKINGTON BROS., Ltd., GRIFFITH, C. F., and BRADLEY; P. R. April 12, 1941, Nos. 4880/41 and 3643/42. [Class 2 (iii)] [Also in Group VIII] Laminating material for making articles formed from laminae bonded and impregnated with a thermoplastic or thermosetting plastic is made by disposing between two permeable sheets, e.g. paper, fabric or open-weave fabric backed with paper, a layer of dry plastic particles in quantity sufficient to impregnate the sheets and then subjecting the sandwich to heat and pressure sufficient to adhere the sheets but insufficient to cause permeation of the sheets, and, in the case of thermo-setting plastics, to cure the plastic. Additional layers of plastic particles and sheets may be applied in succession and similarly treated. Openweave or net fabric, string or cord may be disposed in the plastic layer. A continuous web of sandwich material may be formed by applying to a paper web 1 from a hopper 7, by means of a toothed distributing blade 10 and roll 8, a stream 11 of dry powdered phenolformaldehyde resin or shellac, the thickness of the layer being regulated by a transversely oscillating V-shaped doctor blade 12 co-operating with a roller 3. The coated web 1 is then. passed together with a second web 5 through steam-heated pressure rolls 4. Alternatively the resin may be heated by a radiator 4a and pressed between cold rolls. A multiple sandwich may be formed by similarly applying resin to the sandwich and passing it, together with a third web between a pair of rolls of which the upper one only is heated. The sandwiches may also be made in an ordinary platen press. The laminated product may be made from both single and multiple sandwiches. Where the article has a sharp curvature single sandwiches, which allow the maximum slippage, are used.
Patent GB-575765-A (GB)
Title: Improvements in variable pitch propellers
IPC: B64C11/36
Filed: 1941-04-15
Abstract: 575,765. Variable - pitch airscrews. DE HAVILLAND AIRCRAFT CO., Ltd., GILLMORE, K. B., and BROWN, G. H. F. April 15, 1941, No. 4928. [Class 114] Mechanism for varying airscrew pitch comprises control and reaction gear, the control gear having a sun 25 meshing with a pitchchange drive shaft 38, and a sun 30 meshing with pitch-change drive gear 32, while the reaction gear comprises a sun 12 fixed to a stationary part and a sun 10 fixed on the screw shaft. The suns engage a planet 19 on a shaft carrying a reversing pinion 21 meshing with a pinion 22, a planet 24 on the shaft of pinion 22 and reversing pinions 15, 16 rotating on shafts, all parts being mounted by a cage 14. The drive may be transferred through the worm 34 effecting the pitch change, to act on a reverse screw through similar gearing.
Patent GB-657465-A (GB)
Title: Improvements relating to touring bags for cycles
IPC: B62J9/00
Filed: 1949-02-24
Abstract: 657,465. Bags. MIDLAND GEAR CASE CO., Ltd., and SMITH, W. B. Feb. 24, 1949, No. 5006. [Class 133] A cycle touring bag of the type suspended from the cycle saddle is provided with a central recess which accommodates the rear part of the underframe of the saddle and minimises chafing. As shown, a bag 1 is suspended from a cycle saddle by straps 3 carried by a suspension bar 4 clamped laterally to the top of the bag. The back 7 has a central recess 8 below the suspension bar 4 formed by cutting away the back 7 vertically and horizontally to admit insertion of a four-sided gusset comprising a base 11, rear wall 12, and side walls 13. The gusset may be made of the same material as the bag or of an india-rubber or thermoplastic moulding or sheet metal pressing.
Patent GB-108827-A (GB)
Title: An Improved Imitation Fire.
Inventor: BERRY HERBERT HENRY
IPC: F24C7/00
Filed: 1917-04-11
Abstract: 108,827. Berry, H. H. April 11, 1917, Imitation fires.-An imitation fire of the kind described in Specification 108,097 comprises blocks 2 of coloured glass and pieces 2 of coal, coke, or other opaque material upon a guard or frame 1, within which are two electric, gas, &c. lamps 4. Fans 5 carrying depending strips 6 are rotated in opposite directions by the heat of the lamps, pro ducing a flickering effect vhich is increased by mirrors 7. An electric heater 8 is hung on the bars of the fire-place. A modification is cunstructed in the form of a brazier fitted with an electric heater.
Patent GB-311022-A (GB)
Title: Improvements in or relating to mortising machines
IPC: B27F5/04
Filed: 1928-02-18
Abstract: 311,022. Goddard, J. H., and Priestnall, A. Feb. 18, 1928. Mortising.-In a mortising-machine, such, for instance, as a machine with separate chain and hollow-chisel cutters, the length of each mortice is determined by means of a stop 13 fixed on the undercarriage of the work table and adapted to co-operate with one of a number of stops 12, one on each face of a rotatably-adjustable carrier 11 which is carried by the table 2 and may be turned to bring a fresh stop into action by means of a milled head 17. A spring-pressed ball 19 cooperating with grooves, one for each face of the carrier, acts as a locking catch for the holder. The table 2, may also be provided with a positioning device comprising a grooved bar 22 clamped to the table and fitted with spring stops 26 which may be pressed into the groove.
Patent GB-119194-A (GB)
Title: Improvement in Tire Casings.
Inventor: BURDICK ADELBERT SAMUEL
IPC: B60C9/02
Filed: 1918-03-26
Abstract: 119,194. Burdick, A. S., and Hermann, J. C. March 26, 1918. Jackets and covers,-A reinforcing insertion for tyre covers consists of overlapping fabric pieces 7 so shaped as to provide a maximum thickness at the tread, a gradually decreasing thickness to the top of the beads, and a minimum uniform thickness around the beads. The built-up strip may be embodied between the usual inner fabric layers 5 and breaker-strip 13.
Patent GB-1487137-A (GB)
Title: Flight path control apparatus
IPC: G05D1/06
Filed: 1975-02-07
Abstract: 1487137 Controlling aircraft SPERRY RAND CORP 7 Feb 1975 [29 March 1974] 5272/75 Headings B7G and B7W An aircraft, in particular a helicopter, during a take-off mode is controlled so as to follow a selectable flight path relative to the horizontal at a programmed acceleration therealong to a predetermined constant velocity by adjustment, in the case of a helicopter, of collective and cyclic pitch controls. A sensor system 10 having inputs from a radio altimeter, a glide slope receiver, longitudinal and vertical accelerometers, a vertical gyroscope, a static pressure sensor and a pitot pressure sensor, supplies basic air data and inertial reference information to a pressure and inertial data computer 11. Outputs from computer 11 are fed to a thrust flight director computer 12 and to a pitch attitude flight director computer 13 to derive error signals # COL  and # CYC  which drive conventional cross pointer elements of an attitude director indicator 14 (Fig. 5b, not shown). The desired flight path angle γ 1  and flight path acceleration v COM  are simultaneously generated by adjustment of control knob 15a of an indicator unit 15 (Fig. 5b, not shown for greater detail). Collective pitch and cyclic pitch signals # COL  and # CYC  are also supplied to an automatic pilot sub-system 16, whereby the helicopter is controlled so as automatically to follow the command flight path. The sub-system is conventional and includes servo amplifiers (not shown) responsive to the signals # COL  and # CYC  and having their outputs connected to conventional collective pitch and cyclic pitch actuators 17 and 18, respectively, which position corresponding push rods 17<SP>1</SP> and 18<SP>1</SP>.
Patent GB-1457973-A (GB)
Title: Laser amplifier
IPC: H01S3/07
Filed: 1974-02-05
Abstract: 1457973 Lasers QUENTRON OPTICS PTY Ltd 5 Feb 1974 [9 Feb 1973] 05283/74 Heading H1C A laser amplifier comprises one or more elongated members 11 either including or constituting a laser medium, the or each member being arranged with its major axis oblique to the propagation direction of a laser beam 13 being amplified. As shown each member 11 may have its axis perpendicular to that of one or more laser beams being amplified or may be otherwise angled, Fig. 3 (not shown). The plurality of laser beams may be derived from a single beam, using beam splitters, Fig. 4 (not shown). Suitable solid lasing media are neodymium doped glass or ruby or neodymium doped YAG, which may be immersed in a cooling liquid. The member 11 may be a container for a liquid, gaseous or plasma medium, e.g. a dye or iodine, which may be excited remote from the container and flowed therethrough. Suitable pumping devices 12 are flash tubes or radiation emitting diodes.