baber/WOPTO huggingface dataset:
Patent GB-478075-A (GB)
Title: Plant for distilling and sterilizing water and for supplying same
IPC: C02F1/04
Filed: 1936-08-05
Abstract: Water distilling and sterilizing plant comprises a primary circuit including a still 1 heated by low pressure steam from a supply pipe 4, a condenser 12 and storage tank 6, together with a secondary circuit consisting of water feed pipes 21 with draw-off taps 20 on each floor of a building &c., the supply pipes 21 and the main steam pipe 4 to the evaporator <PICT:0478075/III/1> being run in close proximity.  The storage water is kept in sterilized condition by maintaining it at about 60 DEG  C. by means of a coil 15 fed with thermostatically controlled steam bled from the main steam pipe 4, and also by heating and filtering the air passing through the pressure equalizing pipe by means of a cylinder 5 inserted in the main steam pipe and a canister 8 filled with cotton wool.  The parts of the primary circuit are preferably situated on the top floor of a building and the boiler for low pressure steam in the basement.  The steam supply to the still is controlled by a valve 11 operated through linkage 10 by a float 9 in the storage tank.  The hot distilled water may be passed to a cooler 24 and from thence supplied to draw off taps 23.  The parts of the plant may be constructed from stainless steel or tinned copper.
Patent GB-476515-A (GB)
Title: Improvements in or relating to rotary pumps
IPC: F04C7/00
Filed: 1936-08-05
Abstract: 476,515. Rotary pumps. PULSOMETER ENGINEERING CO., Ltd., and WARREN, R. Aug. 5, 1936, No. 21538. [Class 110 (ii)] A vaned rotor E is rotated on a stub shaft D by means of a casing C which is driven by a shaft B The casing C is built up of end plates C<1>, C<2>, and theworking chamber is lined by a ring C3, which may be of rubber. The ring C<3> has in it a number of recesses C' which are shaped each to form an approximate envelope of the corresponding vane tip as the latter moves relatively to the rotary casing. Ports C<5> in the plate C<1> communicate with stationary inlet and delivery ports A<1>, A<2> leading to inlet and outlet branches A<3>, A'. When used for pumping gases, liquid may be admitted to the working chamber and seal the vane tips by centrifugal action. In this case, one or both ports A', A<2> may be extended. The shaft D may be adjustable to vary the relative eccentricity between the rotors, thus altering the capacity of the working chamber.
Patent GB-1324577-A (GB)
Title: Directional coupler
IPC: H01P5/18
Filed: 1971-04-19
Abstract: 1324577 Strip - line directional couplers PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 19 April 1971 [14 Feb 1970] 21548/71 Heading H1W A directional coupler is formed by a "slot line" on one side of a dielectric substrate and a strip line on the other. The slot line is formed by coating one side of the substrate with a layer 2 of conductive material and removing a narrow slot 3. The strip line is formed by a conductive strip 4 on the opposite side. Since the magnetic fields in the slot and strip lines are respectively parallel to and normal to the direction of propagation, there is no coupling unless the lines are oblique to each other, as shown. It is stated that directional coupling is effective over a broad band, e.g. 1 to 12 GHz. The slot line is terminated by open circuits at the edge of the substrate, or by circular cut-outs 5, 6, as shown. Energy is coupled to the line by connecting the conductors of coaxial input and output lines 7, 8 to the conductive layer on either side of the slot. Conventional couplings (not shown) are made to the strip line.
Patent GB-932291-A (GB)
Title: Improvements in devices for the internal organisation and co-ordination of the transfer of information in an electric computing machine
IPC: G06F9/46
Filed: 1960-06-20
Abstract: 932,291. Programming arrangements for computers. COMPAGNIE DES MACHINES BULL. June 20, 1960 [June 24, 1959], No. 21587/60. Class 106 (1). Transfer of data (and instructions) in a digital computer between a main store and peripheral and processing units is effected by use of address stores containing addresses in the main store associated with the units (these addresses being modifiable) one such address store being provided for data to be transferred, and a second for instructions for the unit. Fig. 2 shows at 1 the main store with input and output buffers 2 and 3, and address selector 13 receiving from data address store 15 the main store address appropriate to the particular peripheral unit 10 (only one is shown) operative for a data transfer. The connection of a unit 10 to register 7 is controlled by " priority " circuits as described in Specification 883,655, and the register 7 obtains from 15 at its " peripheral unit address " the address in store 1; this is modified (e.g. by addition of one) at 20 before being written back into 15. If a data transfer from 10 is called for, 7 will receive, in addition, the " catena " of 24 bits for transfer via 14 and 2 to main store; in the case of a transfer to 10, this takes place via register 8. The transfer of instructions (e.g. from main store to arithmetic unit or to a peripheral unit) is effected by similar means (Fig. 3, not shown) a separate address store for instructions in the main store being provided, and a register receives all instructions for " preparatory decoding " enabling the instruction to be correctly routed, ensuring that any jump modifications, address modifications (e.g. where " relative addressing " is used) are first effected, and that necessary initial conditions are satisfied. Specification 891,935 also is referred to.
Patent GB-739159-A (GB)
Title: Improvements in or relating to rotary electric switches and rotary switch controlled fuse units
Inventor: FIELDING JACK GOMERSALL
IPC: H01H9/10
Filed: 1952-08-29
Abstract: 739,159. Switch cases; switches held set and freed mechanically. PRENTICE, Ltd. Aug. 25, 1953 [Aug. 29, 1952], No. 21750/52. Class 38 (5). A switch 1 comprises a cam 2 operated by a spindle 3 having splines 10 co-operating with slots 11 in a sleeve 9 rotatable by a knob 8. A disc 12 attached to the sleeve 9 co-operates with the hook-shaped head of an element 7 fixed to the switch body and thus prevents removal of the sleeve 9 and knob 8 from the spindle 3 except when the knob is rotated to the " off " position in which a gap 13 in the disc 12 is beneath the head of element 7. The switch is mounted in the casing 15 of a fuse unit and the knob 8 is -carried by the hinged casing lid 17 whereby the engagement between the disc 12 and element 7 ensures that the cover 17 cannot be opened unless the switch is "off". An alternative interlock, Fig. 5, comprises pins 18 on the sleeve 9 which are passed through gaps in the switch cover 5. In a modification, Fig. 7, the element 7 is extended to form a peg 21 which serves both to locate the cover 17 and also to limit the rotation of the knob 8. The switch 1 may be similar to the construction described in Specification 594,055.
Patent GB-760862-A (GB)
Title: Improvements relating to perambulators
IPC: B62B9/14
Filed: 1954-07-26
Abstract: 760,862. Hoods. HOMER, H. W. July 26, 1955 [July 26, 1954], No. 21764/54. Class 108(1). A retractable screen 29 is carried on a spring- loaded roller rotatably mounted in a housing 10 provided with fixing brackets 11 for detachably securing it to the frame member 14 of a perambulator hood 15.
Patent GB-642253-A (GB)
Title: Reaction of vinyl ethers with thiols
Filed: 1947-08-08
Abstract: Compounds of the general formula <FORM:0642253/IV (b)/1> (wherein X represents oxygen or sulphur, and R1 and R2 each represent alkyl, aryl, aralkyl or alkaryl radicals, or oxygen- or sulphur-interrupted hydrocarbon radicals, or jointly represent a bivalent hydrocarbon radical) are manufactured by reacting a mercaptan R2SH with a vinyl ether CH2=CHOR1, preferably under substantially anhydrous conditions in the presence of an acidic catalyst (e.g. mineral acids, aromatic sulphonic acids or substances having an acid reaction such as a -chloroethyl ether), if desired in the presence of an inert diluent. In examples, methyl vinyl ether is reacted with: (1) ethyl mercaptan in diethyl ether in the presence of a -chloroethyl methyl ether to produce methyl ethylthiol acetal and diethyl mercaptal; (2) b -mercaptoethanol in the presence of p-toluenesulphonic acid to yield 2-methyl-1 : 3-thioxolane. Additional starting materials specified are, on the one hand, ethyl, isopropyl, isobutyl, lauryl, stearyl, phenyl, cresyl, benzyl, b -methoxyethyl and b -methylthioethyl vinyl ethers, and, on the other hand, methyl, propyl, isopropyl, butyl, isobutyl, amyl, octyl, lauryl, stearyl, phenyl, naphthyl, cresyl and benzyl mercaptans, ethane-, 1 : 2- and 1 : 3-propane- and 1 : 3-butane-dithiols, g -mercaptopropanol and b - and g -mercaptobutanol.  Specification 20905/38 (as open to inspection under Sect. 91) is referred to.
Patent GB-222137-A (GB)
Title: Improvements in synthetic ammonia process
IPC: C01B3/02
Filed: 1924-09-19
Abstract: 222,137. Synthetic Ammonia &. Nitrates, Ltd., (Assignees of Dely, J. G.). Sept. 19, 1923, [Convention date]. Nitrogen; hydrogen.-The purification of the nitrogen-hydrogen mixture employed in the synthesis of ammonia is effected by a cold process using water ammoniacal copper solution, and alkali solution for scrubbing the compressed gas. Air and steam in regulated quantities are passed through incandescent coke in the gas producer 1 and the gas mixture produced, after being washed in the water scrubber 2, is stored in the gas holder 4. Steam is then added in regulated quantity to the gas mixture to effect the oxidation of the carbon monoxide content in the apparatus 5, and the product compressed to about 1400 lbs. in the compressor f. Prior to compression the gas may be cooled in the refrigerator 5<b>; a gas holder 5<a> is employed to maintain the supply of gas constant in the system. The compressed gas is then washed at ordinary temperature in the water scrubber 6, after which it is treated preferably at 0‹ C. with ammoniacal copper solution in the vessel 7 to remove carbon monoxide in the manner described in Specification 220,651. Thereafter the gas is washed with cold caustic soda solution in the vessel 8. Pre- Jerably the gas is passed prior to the synthesis through liquefied ammonia, in the manner described in Specification 215,789, for purposes of final purification. Specification 120,546 also is referred to.
Patent GB-907321-A (GB)
Title: Improvements in the manufacture of lactic acid
Inventor: CHILDS CLIFFORD GEORGE
IPC: C01B31/08
Filed: 1958-07-10
Abstract: Impure lactic acid solution containing calcium ions is purified by treating the solution with an ion-exchange resin which replaces the calcium ions with hydrogen, sodium or potassium ions.  The process is particularly useful for treating lactic acid, obtained by the bacterial fermentation of a steep containing glucose, sucrose or invert sugar with the addition of barley meal or other material adapted to supply nitrogen for the formation of bacterial protein, which has been neutralised by limestone.  The liquid resulting from the fermentation contains calcium lactate and inorganic and organic impurities, e.g. amino acids.  Some of these impurities may be removed by treatment of the mixture with milk of lime and filtering. Most of the calcium ions may be removed by treating the solution with sulphuric acid and filtering off the calcium sulphate formed.  The resulting solution is treated with an ion exchange resin, preferably sulphonated polystyrene resin having a low percentage of cross linking.  If desired the solution may be decolourised before the treatment with the resin by treatment with activated charcoal. The purified solution may be concentrated by evaporation after neutralising the free sulphuric acid.  Lactic acid of 80% concentration thus obtained may be further purified by extraction with an aliphatic ether.
Patent GB-714599-A (GB)
Title: Method and apparatus for shaping and grinding and polishing metals
IPC: B23K9/00
Filed: 1950-09-08
Abstract: 714,599. Desurfacing. EBERLE, N. Sept. 8, 1950 [Sept. 15, 1949], No. 22235/50. Class 83 (4). Metal work-pieces are machined by an A.C. or D.C. electric arc between a moving electrical conductor and the work-piece by maintaining a small air gap and by limiting the current to less than 10 amps. to produce a channel of conductive gas which carries away burrs on the work-piece and allows its surface to be enriched by alloy components of the conductor. A disc 1 on an insulating bush b is rotated by an electromotor and fed by a brush 2. The work-piece k is mounted on a holder 3 with electrical connector 4. Current is fed from mains a to a variable transformer 5 and by a change-over switch 6 to a rectifier 7 for converting A.C. to D.C., a capacitor 8, frequency changer 9 and rheostat 10 to determine the voltage, amperage, and frequency of the current of the circuit. The currents used are from a fraction of an amp. to 10 amps and'the voltage at least equal to the arc voltage. The disc 1 may be made of iron or steel alloyed with chromium, titanium, tungsten, or cobalt. An electromagnet may be used for deflecting the arc and a nozzle for supplying steam, moist air or atomized water to the arc may be fitted. In shaping high-speed steel a brass disc rotated at 20 metres per second is fed with D.C. at 118 volts and 14 amps, the positive pole being connected to the holder 3.
Patent GB-878319-A (GB)
Title: Improvements in or relating to induction motors
Inventor: RAWCLIFFE GORDON HINDLE
IPC: H02K3/28
Filed: 1957-07-15
Abstract: 878,319. Change-pole induction motors. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 2, 1958 [July 15, 1957], No. 22297/57. Class 35. A three-phase 3: 1 polechanging winding comprises a main winding occupying twothirds of the slot space and chorded to eight-ninths of the full 9-slot pole-pitch under 4- pole working conditions (which is equivalent to two-thirds of the full pole-pitch under 12- pole working conditions), and an additional 12-pole winding occupying the remaining onethird of the slot space and chorded to two-thirds of the pole-pitch under 12-pole conditions, this additional winding being connected only during 12- pole operation. The four-pole connection is delta with the additional winding idle, while the 12-pole connection is star with the additional winding making one whole phase. Fig. 2 shows a phase-band diagram for the main winding represented for clarity as the equivalent evenly - distributed full - pitch winding. The phase bands each consist of three sections, of which the centre section is filled while the outer sections (shown unshaded) are only half-filled and also carry the additional winding (not shown). As indicated by the inset letter B, coil-sides at the tops of half-filled slots may be pushed down to the bottoms to accommodate the additional winding Y in the tops of the slots in the arrangement shown in Fig. 3. It is stated that this modification gives a better performance which offsets the disadvantage of using coils which are not identical.
Patent GB-755379-A (GB)
Title: Hydraulic multi-speed power transmission for vehicles, especially for rail vehicles
IPC: F16H47/06
Filed: 1954-07-30
Abstract: 755,379. Change-speed gearing. AKT.- GES. FUR UNTERNEHMUNGEN DER EISEN-UND STAHLINDUSTRIE. July 30, 1954 [Aug. 1, 1953; Sept. 3, 1953], No. 22306/54. Class 80(2) In a railway locomotive, a hydraulic multi-speed transmission is controlled by a pivoted lever 25 connected to the engine speed controlling means, such as a fuel pump 24. The control lever 25 is either turned clockwise from the position shown, when the lowest ratio is engaged and the engine is throttled down, to increase the engine fuel supply and adjust a centrifugal governor 20 which gives automatic ratio changes, or is turned anticlockwise to engage successively higher ratios (II-IV) without increasing the fuel supply, finally disengaging the transmission and setting the engine to idle. In the latter case, .a reduced tractive effort is obtained with the successively higher ratios. The transmission may be of the type in which ratio changes are effected by, e.g. filling and emptying hydraulic circuits, or, as shown, a diesel engine 10 may drive through a hydraulic torque, connector 11 to a fourratio countershaft gear 12. The fourratio gear 12 is of the constant mesh type and its ratios are selectively engaged by the admission of fluid under pressure to multidisc clutches. The pressure fluid is supplied from the pump 16 through a slide valve 15 to a distributing head 17..The rod 18 of the lever 15 is pivotally connected to a lever 19, connected at one end to a centrifugal governor 20 and at the other to a link 21. The centrifugal governor 20 is driven through a variable ratio expanding pulley gear 23 the ratio of which is determined by the position of a pivoted lever 27 actuated by a link 26. The link 26 is pivotally mounted and also actuates the link 21. The control lever 25 has a chain connection to the link 26. In the neutral or vertical position of the control lever 25, the lowest speed ratio is engaged, and the diesel engine 10 is throttle down to the minimum speed at which it can drive, e.g. 500 r.p.m. On moving the lever anticlockwise. Fig. 1, the higher ratios are successively engaged (II-IV). The highest ratio which will drive the locomotive under light load can accordingly be selected. The control device can be applied to a locomotive having more than one change-gear ratio gearing; in this case an electric switch 29 is closed to disconnect the additional gear. To further reduce the tractive effort when shunting &c., a transmission brake 31 can be applied, or a lever 30 turned to reduce the pressure in the torque converter 11.
Patent GB-1426560-A (GB)
Title: Shelving
IPC: A47B57/42
Filed: 1973-05-10
Abstract: 1426560 Shelving INTERIOR SYSTEMS UK Ltd 28 March 1974 [10 May 1973]  22325/73 Heading A4B In a shelving structure comprising an angularly adjustable shelf support arm 1 with a hooked end 2 engaged in a slot 3 of a support column 4 and a strut 5 pivoted at one end 6 to the arm 8 and having a hooked end 7 engaged with a further slot 3, there is provided a clip, Fig. 2, for engaging the space 3a above the hooked end 7 to prevent inadvertent disengagement, the clip being made of resilient strip material bent into a substantially U-shape, one limb 8 having a bent out tongue 9 which together with an upper portion 8a of the limb 8 embraces the upper edge 3b of the slot 3 and the other limb 10 having a portion 10a which resiliently bears on the top of the strut 5, the latter being engaged in a slot 11 in the limb 10 to be straddled by the latter.
Patent GB-1199952-A (GB)
Title: Electrolysis of Alkali Metal Halide Solutions
Inventor: BACHMANN REINHARD
IPC: C08J5/22
Filed: 1967-05-15
Abstract: 1,199,952. Electrolytic production of alkali metal hydroxides. FARBENFABRIK WOLFEN VEB. May 15, 1967, No.22348/67. Heading C7B. Solutions of alkali metal hydroxides are produced by electrolysis of aqueous solutions of alkali metal halides in a cell in which the anode and cathode are separated by a diaphragm consisting of a membrane of a dense or porous homogeneous cation exchange resin having sulpho exchange active groups, the carriers for the active groups being residues of mono-and di-vinyl aromatic compounds, the membrane consisting either entirely of a copolymer of mono- and di-vinyl aromatic compounds or of a polymeric aliphatic hydrocarbon or halogenated aliphatic hydrocarbon on to which has been graft-polymerized the mono- and di-vinyl aromatic compounds. The examples given result in the production of substantially halide free solutions of hydroxides with both dense and porous membranes. The membranes may be formed directly as foils or obtained as foils from granulates or powders on which the graft-polymerization has been effected.
Patent GB-436685-A (GB)
Title: Improvements in hook members for coke-oven door operating machines
IPC: C10B25/14
Filed: 1934-08-02
Abstract: 436,685. Door-operating mechanism. McEWAN, M. H., and WOODALL-DUCKHAM (1920), Ltd., 136, Victoria Street, Westminster. Aug. 2, 1934, No. 22545. [Class 65 (i)] [See also Group XII] In a coke-oven door-operating machine, a hook member 1 at the end of the door operating arm, which is pivoted at 6, rotates on a ball bearing 3 so that the door, when clear of the oven opening, may be turned away from the oven face for cleaning or other purposes. A spring loaded plunger 5 engages with holes in the hook member which may be locked in various positions.
Patent GB-204046-A (GB)
Title: Improvements in or relating to centrifugal separators
IPC: B04B15/08
Filed: 1923-09-10
Abstract: 204,046. Aktiebolaget Separator. Sept. 12, 1922, [Convention date]. Density separators.-In centrifugal separators for liquids, to prevent re-mixing due to air currents containing suspended liquid particles, an opening I is provided in the casing B, through which air is forced by the centrifugal action of the bowl A, which may carry vanes M, and the air current thus drawn from the oil vessel D and pipe G flows by way of the central holes through the water vessel C, and is powerful enough to counteract secondary currents containing water particles. The water pipe F is made of smaller cross-section than the oil pipe G, or it is fitted with an adjustable valve K. The opening I may be controlled by a valve J, and may be arranged nearer the centre, as shown in Fig. 2, with vanes K<1> and a partition L<1>. Specification 202,616 is referred to.
Patent GB-680122-A (GB)
Title: Improvements in and relating to the production of catalysts
IPC: C07C5/27
Filed: 1949-09-02
Abstract: Hydrocarbon conversion reactions, e.g. the conversion of tertiary butyl benzene to benzene and isobutene at 400 DEG C. and of para-xylene to a mixture of ortho- and meta-xylenes at 430 DEG C., are carried out with a catalyst comprising a substance containing one or more oxides of Al, Zr, Be, Th or Ti which has been treated with elemental fluorine (see Group III).ALSO:A catalyst for hydrocarbon conversion reactions (see Group IV(b)) is prepared by reacting a substance containing one or more oxides of Al, Zr, Be, Th or Ti, at a temperature of up to 100 DEG C. with elemental fluorine until the product has a fluorine content of 0.5 to 25 per cent by weight.  The catalyst may also include silica.  The metal oxides are preferably preheated to lower the free or combined water content to below 1 per cent.
Patent GB-621377-A (GB)
Title: Improvements in optical apparatus for use in testing the field of vision by means of an artificially illuminated concave spherical reflector
IPC: A61B3/024
Filed: 1945-09-05
Abstract: 621,377. Sight-testing apparatus. STREIT, W. HAAG-, (trading as HAAG-STREIT, WERKSTATTE FUR PRAZISIONSMECHANIK). Sept. 5, 1945, No. 22861. Convention date, Oct. 14, 1944. [Class 97 (i)] A concave spherical reflector mainly for use as a perimeter, has attached thereto outside the field of vision at least one source of artificial light which illuminates the reflector outside the field of vision whereby the remainder of the reflector is uniformly illuminated by diffused light. The reflector may be a hemisphere. As shown, the reflector 1 has a support 2 for the chin of the patient and is illuminated by a lamp 8 through a spherical diffusing screen 6. Alternatively the lamp may directly illuminate the rim of the reflector adjacent thereto. A projector of the type described in Specification 621,378 may project sight marks on to the reflector. To ensure that these marks are visible against the background a filter 17, Fig. 3, is placed beforethe reflector beam, which falls on a screen 15, visible through a hole 16 in the reflector, and the reflector illumination is varied until the screen 15 and reflector 16 have the same illumination. The Specification as open to inspection under Sect. 91 of the Acts describes also a reflector consisting of a narrow spherical segment rotatable about a pole and illuminated through a fixed spherical or plane surface. This subjectmatter does not appear in the Specification as accepted.