baber/WOPTO huggingface dataset:
Patent GB-1195548-A (GB)
Title: Improvements in or relating to Arrangements for Selecting a Component of an Input Signal Applied Thereto
IPC: H04L7/027
Filed: 1967-11-16
Abstract: 1,195,548. Frequency selective circuits. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 16 Nov., 1967 [19 Nov., 1966], No. 52165/67. Heading H3F. In an arrangement for selecting a component from a frequency spectrum comprising a main selection channel 3 having connected in series a first modulator 5, a selection filter 3, a second modulator 6 and a final selection filter 10, an auxiliary channel 4 also including a selection filter 11, 13-16, is connected to an input of each of the first and second modulators through separate connecting channels 8, 9 and the arrangement is such that the frequency and phase of the selected component appearing at the output 2 are substantially equal to the frequency and phase of the input signal component. The phase shifts introduced by the filters are arranged to cancel so that the input signal 1 is in phase with the output signal of the same frequency at 2. The auxiliary channel 4 has a frequency multiplier 12 which feeds via the filters 14, 15, 16 tuned to this frequency, the modulators 5, 6. Either the sum-or-difference frequency from modulator 5 is selected by the filter 7 and the difference or sum frequency provided by the modulator 6 is selected by the filter 10 which is tuned to the frequency of the incoming signal at 1 as are the filters 11 and 13. In a modified circuit (Figs. 2 and 4, not shown), the filters 13, 15 and 16 are omitted and amplifiers (18 and 17) may be connected between the input filter 11 and the multiplier 12 and between the input and output of the filter 7. In this arrangement the frequency multiplier 12 is in the form of a limiter and the output filter 14 may be tuned to the third harmonic of the input signal at 1. The selection filter 7 would then be tuned to the second harmonic frequency and the selection filters 7, 10 and 11 may have equal Q factors. In an alternative arrangement (Fig. 3, not shown), the input filter 11 and the filters 15 and 16 are omitted. Phase variations in the various filters resulting from temperature changes are compensated substantially by each other. A frequency divider may be connected in cascade with the frequency multiplier 12 or the frequency multiplier may be omitted. The modulators 5 and 6 may be switching modulators.
Patent GB-1205456-A (GB)
Title: Hydrogenation of oils
IPC: C10G45/02
Filed: 1967-11-17
Abstract: 1,205,456. Refining oils. SUN OIL CO. 17 Nov., 1967 [17 Nov., 1966], No. 52443/67. Heading C5E. In a process of refining lubricating and processing oils comprising hydrogenating them with hydrogen over a sulphactive catalyst at a temperature of 450‹ F. to below 650‹ F., a pressure of 100 to 4000 p.s.i.g., and at L.H.S.V.s of 0.1 to 5, the feed is introduced at a throughput which obtains at 25 to 98% of flooding velocity. The examples relate to naphthenic lube oils. The catalyst is conventional.
Patent GB-1462773-A (GB)
Title: Coke oven batteries
IPC: C10B45/00
Filed: 1973-11-12
Abstract: 1462773 Coke oven plant HARTUNG KUHN & CO MASCHINENFABRIK GmbH 12 Nov 1973 [23 Jan 1973] 52487/73 Heading F4B A coke oven plant comprises a coke oven battery and mobile operating machines for use with the battery. Each of a plurality of the mobile operating machines is connected by a permanently fixed connection to source (s) for supplying power, solid and/or liquid, and/or gaseous media and/or for transmitting information and/or control signals, each connection comprising flexible line(s) and forming a component of a cable system towed by the respective mobile operating machine. Fig. 1 shows a coke oven battery 5 with a guide car 6 for hot coke and a charging truck 15. Steam is supplied to the car and truck for use in dust removing machines thereon. The steam is supplied to the car 6 through a fixed line 8 and a cable 11 which is towed by the car 6. Similarly for the charging truck 15, there is a fixed line 16 and a towed cable 18. As shown, each towed cable is folded on itself and so provides a lower run and a top run. Fig. 4 shows lower and top runs 26, 27 of a trailed cable. The cable comprises steam feed lines 25a and 25b, a watercarrying line 25c, a compressed air line 25d and current and control lines 25e and 25f. The upper run is supported by carriages 28 guided in U rails 29. Fig. 5 (not shown) illustrates the joining together of lines side-by-side to form a cable with sides formed by hinged segments (30). Fig. 6 (not shown) illustrates a steam line in the form of a tube (35) surrounded by a protective tube (37). Leakage of steam into the tube (37) actuates a safety pressure switch to shut off the steam supply.
Patent GB-1359920-A (GB)
Title: Molecular pump installations
IPC: F16C35/10
Filed: 1972-11-14
Abstract: 1359920 Molecular pumps COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 14 Nov 1972 [16 Nov 1971] 52498/72 Heading F1C [Also in Division F2] A molecular pump installation comprises a stator element 2 fixed to a stator 34 of the pump through a connecting part 40, and a cylindrical rotor element 4 mechanically connected to a rotor 33 of the pump, the rotor element being rotatable with slight play inside an internal space formed in the stator element, the internal space comprising successively, from top to bottom, a dynamic molecular seal 25, a dynamic viscousflow seal 26, at least one gas radial bearing 27, 28, a gas thrust bearing 30 and a gas counter thrust bearing 31. Air under pressure is supplied at 43 to an annular chamber 42 and thence via ducts 7, 8 to the bearings 27, 28 and via ducts 13, 14 to the bearings 30, 31. After passing through the bearings, the air is exhausted to atmosphere via ducts 20, 44 leading from the bearings 27, 28 and ducts 21, 22 leading from the bearings 30, 31. Each of the seals 25, 26 is provided with fifty helical grooves formed in the inner surface of the stator element 2, the depth of the grooves and their angle to the horizontal being 300 microns and 15 degrees in the case of the seal 25 and 100 microns and 10 degrees in the case of the seal 26. The depth of the grooves may decrease from top to bottom of each seal. The land intermediate the seals may be provided with a groove in which a partial vacuum of about 20 Torre is produced. The molecular pump shown comprises a cylindrical rotor 33 co-operating with one or several helical stator grooves 36. Instead, it may be a multidisc turbomolecular pump, Fig. 3 (not shown) or may comprise a rotor disc, Fig. 4 (not shown), co-operating with several spiral grooves.
Patent GB-1385888-A (GB)
Title: Additives for heat-exchange systems
IPC: C09K5/20
Filed: 1971-11-15
Abstract: 1385888 Corrosion inhibition BORAX CONSOLIDATED Ltd 9 Jan 1973 [15 Nov 1971] 52926/71 Heading C7E A liquid corrosion inhibitor concentrate comprises (1) a corrosion inhibitor selected from mercaptobenzothiazole or its sodium salt, benzotriazole, alkali metal nitrites, alkali metal arsenites and arsenates and alkali metal phosphates dissolved in (2) a condensation product formed between an alkali or alkaline earth metal metaborate or tetraborate and a glycol or monoalkylglycol ether or a polyhydric alcohol having 3 to 8 C atoms. Corrosion of Cu or Fe may be inhibited by adding the concentrate to water in contact therewith, e.g. in a heat exchanger system.
Patent GB-531881-A (GB)
Abstract: 531,881. Electric furnaces. SOC. ANON. DES MANUFACTURES DES GLACES ET PRODUITS CHIMIQUES DE ST. GOBAIN, CHAUNY ET CIREY. Sept. 7, 1939, No. 25251. Convention date, Sept. 7, 1938. [Class 39 (iii)] A rotatable electric furnace comprises a shell with refractory lining 2, having apertures 3 in the end walls for a resistance heater 5 and its connections 6. Sleeves 8 are mounted on the end walls for engagement with rollers 10, and coact in a fluid-tight manner with a projecting part 12 of the member 6. The resistance 5 projects into a socket 16 in which it is clamped by a cam 17 actuated by a hand lever 19 under the control of a spring 33. In a modification, the cam 17 may be replaced by a piston 21 Fig. 8, actuated by water or air under pressure. The member 6 may be cooled by water introduced by a pipe 23. The axis of rotation of the furnace is the axis of the member 6 which does not coincide with the axis of symmetry of the furnace, so that the distance between the resistance 5 and the molten charge is variable. In Fig. 8 the member 6 and resistance 5 are displaceable parallel to the furance axis by screws 30, the terminal 7 being mounted on a part 31 sliding through a stuffing box in the part 12.
Patent GB-1363720-A (GB)
Title: Electrophotographic method and apparatus therefor
IPC: G03G15/22
Filed: 1971-11-17
Abstract: 1363720 Electro-photographic copying RANK ZEROX Ltd 17 Nov 1971 [17 Nov 1970] 53361/71 Heading G2H A photo-conductive sheet 2 is secured to a table 3 and a charging device 1, pre-wetting device 5, developing device 6 and rinsing device 7 are successively moved over the sheet, the sheet being imagewise exposed between charging and pre-wetting by a system 4, and the developing device 6 comprising an endless belt or roller(s) which act as development electrodes. The process may be repeated to produce a multi-colour image. The pre-wetting device 5 preferably comprises a tank 51 of toner-free developer liquid and a valve 52 and may include rollers 57, Fig.4 (not shown) or an air nozzle 59, Fig. 5 (not shown) to remove excess prewetting liquid. The developing device 6 preferably comprises a tank 62 a valve 63 and a nozzle 64 which feeds developer liquid on to a conductive belt 61 or rollers 67, Figs.7, 8, 9 (not shown). The rinsing device 7 preferably comprises a tank 71 of rinsing liquid (optionally containing a fixing agent) a valve 72 and a nozzle 73. Combined developer-rinsing systems with tanks for different coloured developers are described with reference to Figs.13, 14 (not  shown). Sheet 2 may be secured to table 3 by suction, tape, liquid or metal fixtures 34, Fig.12 (not shown) optionally with a resilient sheet (37) between sheet 2 and table 3. Table 3 is preferably pivotable to allow excess liquid to run down grooves 31 into vessels 32.
Patent GB-1395508-A (GB)
Title: Battery-powered electrical apparatus
IPC: H02J7/04
Filed: 1971-11-17
Abstract: 1395508 Battery switching systems TOWER HOUSEWARES Ltd 13 Nov 1972 [17 Nov 1971] 53385/71 Heading H2H Electrical apparatus comprises a load 42 which is energizable from a battery 41 having a plurality of nickel-cadmium cells, connected in series which are rechargeable from an A.C. source by way of a transformer 22 and rectifier bridge 37, a switch 35 being provided whereby one or more of the battery cells may be connected to, or disconnected from the load 42 so as to provide variable energization thereof, the number of cells which can be so switched being chosen such that, in using the apparatus, the unswitched cells cannot be damaged by the reverse charging thereof, and that the switched cells cannot be overcharged during the charging process. The load 42 may be the motor driving an electric heating apparatus which may be detachably mounted on a stand wherein is housed the transformer 22, connection between which and the bridge 37 is made by connections 18-21.
Patent GB-1372569-A (GB)
Title: Fluid logic control system
IPC: F15C1/02
Filed: 1971-11-18
Abstract: 1372569 Fluid logic and switching circuits MAGYAR TUDOMANYOS AKADEMIA AUTOMATIZALASI KUTATO INTEZET 18 Nov 1971 [20 Nov 1970] 53624/71 Heading F1P The control input line L i  of a group of fluidic elements R o , which, having been switched to a stable position are no longer in need of a control pressure, is connected through an on-off fluidic switch S to a control pressure source P t ; switch S being controlled by manual or automatic means D, e.g. a fluidic switch having a supply inlet connected to the control pressure source P t , a control inlet connected to the signal inlet line to elements R o  and its outlet connected to the control inlet of switch S which thus remains closed until a signal appears at R o  for processing thereby. The system shown includes a further group of elements R 1  of which elements MT 1  require continuous full control pressure to maintain them in this stable position and of which elements MT k  require a reduced continuous control pressure.
Patent GB-1131287-A (GB)
Title: Double chain stitch zig-zag sewing machine
IPC: D05B1/10
Filed: 1965-12-22
Abstract: 1,131,287. Sewing machines. VIRGINO RIMOLDI &c., E.p.A. 22 Dec., 1965 [5 Jan., 1965], No. 54368/65. Heading DIG. In a zig-zag machine the needle bar support 44 is displaced laterally by a fork 26 engaging a cam 25 via a link 39 which is adjustable relative to the fork pivot, to vary the displacement, by a link ,36 pivoted to an arm 37 fixed to an adjusting shaft 38. A crank 16 at the end of the upper shaft 15 is connected to an arm 17 the lower end of which is connected to the needle bar 20. Cam 25 driven from shaft 15 is engaged by fork 26 fixed to a shaft 27. An arcuate guide 28 fixed to one end of shaft 27 engages a slot in the end face 29 of a bushing 30 normally co-axial with the shaft, but displacable by rotating shaft 38. The bushing is joined by a link 39 to a shaft 41 mounted in the frame, and carrying the support 44. Rotation of shaft 38 manually or automatically displaces the bushing so that the link 39 reciprocates the needle support 44. The shaft may be clamped in a set position or set to a desired position and temporarily re-set to zero shift, i.e. straight seam, by the operator during sewing. In one embodiment the zero shift may be locked for a predetermined adjustable period by an electric control. 1,131,320. Doffer comb. M. CIOFI. 22 Nov. 1966 [30 Nov., 1965], No. 52175/66. Heading DIN [Also in Division F2] In an arrangement for driving the shaft 8B of a comb 8 with an oscillatory motion for removing the web from the doffer of a carding engine the end 7A of the output shaft 7 of the control box is hollow and provided with slots 7B so that it can encircle the shaft 8B of the comb and be clamped thereto by a resilient band 16 encircling end 7A and being tightened by a bolt 16A. The ouput shaft 7 and input shaft 6 of the control box are mounted in bearings 4, 5, 10A, 10B, the bearings 10A, 10B being carried in a cover 9 which is removably bolted to the main portion 1A of the control box. To dismantle the control box bolt 16A is released and the cover 9 unbolted and drawn away carrying the shaft 6, 7 and their bearings for further dismantling.
Patent GB-1530596-A (GB)
Title: Modulators for vehicle hydraulic braking systems
IPC: B60T8/42
Filed: 1974-12-17
Abstract: 1530596 Vehicle brake modulators; valves GIRLING Ltd 27 Nov 1975 [17 Dec 1974 24 April 1975] 54554/74 and 17105/75 Headings F2F and F2V A brake modulator has a chamber 7 connected to a master cylinder and a slave cylinder, and an expander piston 3 retractable by a spring 9 to increase the volume of the chamber 7 and close a valve 10 between the master cylinder and the slave cylinder. The piston 3 is controlled pneumatically in response to a signal from deceleration sensing means by a first valve 14 connected through inlet 20 to a source of pneumatic pressure, and a second valve 15 downstream of the valve 14 for controlling communication between the chamber 8 and an exhaust passage 21, the valve 15 consisting of a diaphragm 32 movable between seatings 23, 24 in response to pressure in the chamber 17. The arrangement is such that when the signal is inoperative the first valve 14 is open and the second valve 15 is held closed to isolate chamber 8 from the exhaust passage and when the signal is operative the first valve 14 isolates the inlet passage from the supply chamber 17 and reduces the pressure therein so that the second valve can open, the first valve being substantially smaller than the second whereby the pressure in the modulator chamber 8 can be reduced rapidly in response to a relatively small reduction of the pressure in the supply chamber. In a modified construction (Fig. 3) the seating 19 of valve 14 comprises an annulus surrounding an opening 32 in the centre of valve member 22 of valve 15 so that exhaust passage 21 can be eliminated by using exhaust passage 28 of valve 15. In a further modification (Fig. 4) a safety device has a casing containing a diaphragm 33 backed by a plate 35 and urged by a spring 39 stronger than the spring of the modulator pneumatic unit so that if pressure fails member 1 is advanced by a rod 36 under the influence of spring 39 to open valve 10 and allow normal braking.
Patent GB-1136927-A (GB)
Title: 5-substituted-isoxazolidones and intermediates therefor
IPC: C07D261/04
Filed: 1965-12-23
Abstract: 1,136,927. 5-Substituted-isoxazolidones, #- haloglutamates and other intermediates therefor. TAKEDA CHEMICAL INDUSTRIES Ltd. 23 Dec., 1965 [23 Dec., 1964; 25 March, 1965], No. 54703/65. Heading C2C. The invention comprises compounds of the formula wherein R and R<SP>3</SP> are C 1-4  alkyl groups, X is halogen and R<SP>4</SP> is H or a carboxylic acid acyl group having up to 7 carbon atoms. They may be obtained by halogenating a compound of formula with a halogenating agent. Compounds of the formula are obtained by eliminating hydrogen halide with the aid of a base from compounds II. Compounds of the formula wherein R<SP>1</SP> is H or a carboxylic acid acyl group having up to 7 carbon atoms and R<SP>3</SP> is H or C 1-4  alkyl group, are obtained either by reacting a compound II with hydroxylamine to give and further reacting with a base; or by reacting a compound VIII with hydroxylamine to give and further reacting with a base. Compounds of the formula are obtained by treating compounds I with alcoholic hydrogen halide. Examples are given for the production of compounds I and the various intermediates.
Patent GB-1174765-A (GB)
Title: Improvements in Fuel Cells
Inventor: TSEUNG ALFRED CHAN CHUNG
IPC: H01M8/14
Filed: 1965-12-29
Abstract: 1,174,765. Fuel cell. ENERGY CONVERSION Ltd. 29 March, 1967 [29 Dec., 1965], No. 55144/65. Heading H1B. The invention comprises a fuel cell having a semi-solid electrolyte body in which at least one reactant chamber is formed by a recessed member applied thereto and is sealed by fused material disposed between the member and the body. In the embodiment illustrated electrolyte body, 11, is a flat disc of porous MgO the pores of which are filled with a mixture of 41% Li 2 CO 3  and 59% Na 2 CO 3  and is sandwiched between electrodes 12 and 13, a fuel electrode of porous Ni and an oxidant electrode of porous silvered zinc oxide. The electrodes are backed by conductive grids 14 and 15 and are retained in contact with the electrolyte by recessed caps 18 and 19. The caps may have internal projections to press the electrodes against the electrolyte. Flanges 20 and 21 are sealed with fused material 24 and 25. Fuel, e.g. H 2 , and oxidant, e.g. air or O 2  are supplied via inlets 28 and 29. The cell may initially be heated with gas jets (not shown) but is later self-heating. The sealing material may be the same or different from the electrolyte and material lost by seepage or evaporation may be replaced automatically from a reservoir in communication with the grooves 22 and 23. The recessed members may be conducting and serve as current collectors or may be non-conducting.
Patent GB-1419582-A (GB)
Title: Gas cooled fast breeder reactor installations
IPC: G21D5/08
Filed: 1973-11-28
Abstract: 1419582 Cooling nuclear reactors BELGONUCLEAIRE SA 28 Nov 1973 [4 Dec 1972] 55188/73 Heading G6C Nuclear reactor plant includes an auxiliary heat-removal system which may operate to remove decay heat or may provide emergency cooling, the system including a turbine (disposed in a connection between a condenser and a pressure chamber which is connected to a source of steam in the reactor pressure vessel) connected to drive an auxiliary motor which may operate either an auxiliary coolant circulator or a main coolant circulator of the plant. In one embodiment, as shown, a trip or loss of fluid in the cricuit of a main turbine (not shown) leads to loss of power for the reactor coolant primary circulator motor 5, closing of valves 9, 11 in the main turbine circuit and opening of valve 13 in the live steam line whereby steam from steam generator 3 is passed to a steam drum 14. The consequent pressure increase in drum 14 gives rise to an increase in speed of water-circulating pumps 20, 21 turbines 19, 22 and alternator 23. The increased output from the latter provides an increased speed to a continuously-running pony-motor 6 to drive the reactor coolant primary circulator 4, whereby decay heat in the shut-down reactor is effectively dissipated. As the pressure in drum 14 decreases with decrease in decay heat, a heating system 15 can be operated to restore drum pressure to the level necessary for efficient operation of the abovementioned devices. In a modification (Fig. 2, not shown) the auxiliary heat removal system is connected to a steam generator (30) separate from that (3) in the main turbine circuit. A valve (35) is provided to isolate the main steam generator (3) when heat removal by the auxiliary system is required. In a second embodiment (Fig. 3, not shown) in addition to decay heat removal, the system provides for emergency cooling in the event of failure of the reactor to shut down. Three such systems are provided, each connected to two main steam-generator loops. Oil-fired auxiliary boilers 15, 57 can be operated to restore pressure in the steam drum in the circumstances set forth as under the first embodiment.
Patent GB-1142330-A (GB)
Title: Process for the preparation of polymers containing urethaneor urea methylol alkyl oralkenyl ether groups
Inventor: OERTEL GUNTER
IPC: C07C275/10
Filed: 1965-12-30
Abstract: 1,142,330. Olefinically unsaturated compounds containing urethane- or urea-methylol alkyl or alkenyl ether groups. FARBENFABRIKEN BAYER A.G. 30 Dec., 1965 [30 Dec., 1964], No. 55242/65. Heading C2C. [Also in Divisions B2 and C3] Olefinically unsaturated compounds have the general formula in which Y denotes an alkylene group containing more than one carbon atom, or an aralkylene or cycloalkylene radical which may contain, as bridge members and/or substituents, carboxylic acid amide, carboxylic acid ester, ether, tertiary amino, urea, urethane or sulphonamide groups, halogen atoms, or cyclic radicals containing oxygen, sulphur or nitrogen atoms, n is an integer of from 1 to 3 and (i) A denotes a vinyl or vinylidene radical which is linked to radical Y directly and X is O or S, in which case R is an alkyl or alkenyl radical or X is NR<SP>1</SP>, in which R<SP>1</SP> is a hydrogen atom or an alkyl or alkenyl group, in which case R is an alkyl or alkenyl radical, or (ii) A denotes a vinyl or vinylidene radical which is linked to Y through a carboxylic acid ester or amide group, and X is O or S, in which case R is an alkyl or alkenyl radical, or X is NR<SP>1</SP> in which R<SP>1</SP> is a hydrogen atom or an alkyl or alkenyl group, in which case R is an alkenyl radical, or (iii) A denotes a vinyl or vinylidene radical which is linked to Y through an ether group, and X is O or S, in which case R is an alkenyl radical or X is NR<SP>1</SP>, in which R<SP>1</SP> is a hydrogen atom or an alkyl or alkenyl radical, in which case R is an alkyl or alkenyl radical, which alkyl and alkenyl radicals R and R<SP>1</SP> contain 1 to 18 carbon atoms and may be branched. The compounds are prepared by (i) reacting a compound containing an olefinic bond and phenolic or alcoholic hydroxy groups or primary or secondary amino groups with an alkoxy or alkenoxy methylisocyanate or (ii) reacting an amino or hydroxy compound with an alkoxy or alkenoxy methylisocyanate to form a compound containing at least one phenolic or alcoholic hydroxyl group or a primary or secondary amino group and introducing a polymerizable radical into said compound, e.g. by acylation or alkylation. Descriptions are given of the preparation of propanediol-2-N-methoxymethylurethane-1-methacrylic acid ester in Example 1, the compound in Example 5, the compound in Example 6, the compound in Example 7 and the compound in Example 8.