baber/WOPTO huggingface dataset:
Patent GB-659368-A (GB)
Title: Improvements in or relating to primary electric cells
IPC: H01M4/46
Filed: 1949-09-09
Abstract: 659,368. Primary batteries. DOW CHEMICAL CO. Sept. 9, 1949, No. 23420. Convention date, Jan. 27. [Class 53] A primary cell has a carbon cathode surrounded by manganese dioxide, a magnesium or magnesium alloy anode, and an electrolyte consisting of an aqueous solution of ammonium bromide. The magnesium alloy may contain small quantities of aluminium, zinc, calcium, and manganese and to prevent corrosion of the anode by the electrolyte the latter may. contain chromates or bichromates of sodium, lithium, calcium, or ammonium. Fig. 1 shows one form of cell in which a receptacle 1 is divided by a perforated partition 4 on one side of which is a sheet 6 of porous material such as filter paper. The compartment 2 contains a magnesium plate 7 immersed in a solution of ammonium bromide, the compartment 3 containing a carbon rod 10 surrounded by a mixture of manganese dioxide and finely divided carbon moistened with the electrolyte. A dry cell is also described having a magnesium container, a central carbon rod surrounded by a manganese dioxide depolarizer, and a jelly electrolyte of ammonium bromide between the depolarizer and container.
Patent GB-1144912-A (GB)
Title: Air treating system for enclosures to improve environmental conditions
IPC: A61G10/02
Filed: 1966-05-25
Abstract: 1,144,912. Air conditioning. BORG-WARNER CORP. 25 May, 1966 [11 June, 1965], No. 23450/66. Heading F4V. An air conditioning system provides purified air at a controlled humidity and temperature to a hyperbaric chamber 10. Atmospheric air is intimately mixed with alkaline potassium permanganate in a water-sealed compressor 13, excess moisture is removed in a separator 22, and excess humidity is removed in a dehumidifier 30. Some air may by-pass the dehumidifier 30 along a conduit 50 controlled by a valve 51 operated by a solenoid 52 in response to a humidistat 53, and is mixed with dehumidified air to control the humidity in the chamber 10. Electrical heating coils 68, 71, responsive to thermostats 69, 72 respectively, may control the temperature of the air entering the chamber 10. A reservoir 17, containing a chemical dispenser 21 for the potassium permanganate, provides water for the water-sealed compressor 13 and for a fluid coil 74 in a condenser 73. The condenser 73 forms part of a refrigeration circuit 26. The water from the reservoir is cooled by being returned to the reservoir through a spray nozzle 78. The refrigeration circuit 26 cools liquid in an evaporator fluid coil 28 which feeds the fluid coil 29 in the dehumidifier 30.
Patent GB-1191682-A (GB)
Title: Circuit arrangement for the Storage of Switching Programmes and for the carrying into effect of Programmes
IPC: G05B19/16
Filed: 1967-05-19
Abstract: 1,191,682. Programmed control electric. ELEKTROIMPEX KULKERESKEDELMI VALLALAT. May 19, 1967 [May 20, 1966], No.23488/67. Heading G3N. A studio lighting intense intensity recording and control circuit comprises a known magnetic storage means e.g. tape or disc synchronized with a beam projector 2a which sequentially scans photo-sensitive elements 4 1 1-4n which pass pulses of constant width and amplitude through attenuating potentiometers 5 to a unit 6 in which amplitude modulated pulses are converted into width modulated pulses which are fed via an amplifier 8 to a switching unit A1-An to corresponding writing heads B1-Bn. For each modulation pulse a cancellation pulse is developed in unit 7 which also accepts an output from unit 6 together with unattenuated pulses from the photo-sensitive elements 4, 1-4n, each pair of pulses corresponding to the intensity required from lighting sources 19. In the playback mode, the signals scanned by the playback heads L1-Ln are conveyed by switching units C1-Cn to a signal forming unit 10. By means of a bistable trigger circuit 11 an AND gate 12 also a second bistable trigger stage 13 the recording pulses are recovered. The programme initiating chains each comprise a gate 14 which is switched by an element 4, 1-4n, a filter 15, rectifier 16 output stage 17 and control unit 18.
Patent GB-755522-A (GB)
Title: Apparatus for use in sampling particulate clouds such as airborne dust
Inventor: LLOYD HARRY
IPC: G01N1/22
Filed: 1953-08-26
Abstract: 755,522. Rotary pumps. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Aug. 24, 1954 [Aug. 26, 1953], No. 23631/53. Class 110(2) [Also in Group XX] A continuously acting liquid-sealed rotary vane suction pump 6, Fig. 1, located in a compartment 2 of a housing 1 and driven by a clockwork or electric motor 9 in a compartment 3 comprises vanes 21 such that when rotated clockwise about a central axis they become submerged below the liquid level 19 in overlapping succession causing air drawn through a filter paper 16 (see Group XX) to flow in the direction of the arrows B, Fig. 2, to an axial outlet 8 having an elbow 20 just above the level 19. The vanes make almost two revolutions per hour. During transport valves 22, 23 one closed to prevent spillage of liquid from the compartment 2.
Patent GB-707312-A (GB)
Title: Improvements in lifts
IPC: B66F7/04
Filed: 1951-10-12
Abstract: 707,312. Platform lifts. SKYHI, Ltd., and STEAD, A. H. Jan. 12, 1953 [Oct. 12, 1951], No. 23822/51. Class 78 (3) The apparatus which is described as a garage lift, but is stated to be suitable for raising cinema organs, orchestra stalls or theatre stages, comprises a pair of wheel tracks 6, 6a slidable along vertical hollow pillars 7a-7d by a ram 13 secured to the underside of track 6 and having its cross head 14 connected to the ends of four cables which pass around a series of pulleys on the tracks to anchors at the tops of the pillars. The ram can be screw and nut operated, but as shown, it comprises a hydraulic piston and cylinder unit fed with fluid by a pump 19 which, together with the reservoir 21, is supported on the track 6a. The tracks, which have wheel chocks 9, are of channel section, the downwardly turned edges of which prevent damage to the ram and reservoir when the tracks are lowered. When the tracks reach their raised position, a spring latch 24 automatically engages a catch 26 on cross head 14 and so prevents movement of the tracks until the latch is raised by a hand lever 30. When so raised the latch is locked by a further, gravity-operated, latch (not shown) which renders the spring latch inoperative until the tracks have been fully lowered whereupon the gravity latch engages the ground and is rocked out of engagement with the spring latch. The tracks are equipped with guide rollers (not shown), which engage slots in the vertical pillars 7a-7d. In a modification (not shown), the tracks are laterally adjustable. In a further modification (not shown), a ram 13 which has a stroke less than the desired platform movement is connected to the platform through a system of multiplying pulleys.
Patent GB-984069-A (GB)
Title: Process for separating ammonia from gas mixtures
IPC: B01D53/14
Filed: 1963-06-14
Abstract: <PICT:0984069/C1/1> NH3 is separated from gas mixtures by absorption in a melt containing an acid salt, i.e. having acid H atoms, followed by heating to desorb NH3.  Preferred acid salts are the low-melting alkali metal and ammonium salts of H2SO4 and H3PO4.  Substances capable of lowering the melting-point may be added, or a mixture of the above salts used. Desorption rate is increased by adding neutral salts, e.g. alkali metal sulphates and phosphates, and by use of a carrier gas, e.g. N2, H2, air or steam.  A portion of the acid or neutral salt, and part or all of the ammonium salts formed, may be in solid form, suspended in the melt.  The composition of the melt is maintained by adding water or steam, after desorption.  The gas mixture may contain acid gases, viz. HCN, H2S, SO2, CO2, hydrogen halides, and other gases, e.g. H2. Continuous operation is effected in the apparatus shown: Gases are fed through pipe 1 into vessel 2, where melt 3 absorbs NH3 and flows out through pipe 5, while NH3-free gases leave at 4.  Carrier gas enters at 6, and the melt is conveyed by gaslift or rotary pump 7 to desorption vessel 9, e.g. at 100 DEG C. higher than vessel 2.  NH3 leaves at 10, and the melt flows back via siphon 14, and heat exchanger 12, to below the surface of melt 3.
Patent GB-245415-A (GB)
Title: Improvements in acoustic horns
IPC: G10K13/00
Filed: 1925-09-24
Abstract: 245,415. Western Electric Co., Ltd., (Assignees of Flanders, P. B.). Dec. 31, 1924, [Convention date]. Sound magnifying and directing appliances.- A sound-magnifying horn having its cross-sectional area increasing in accordance with an exponential law is designed to have a minimum power loss at its mouth by making the area of the latter equal to that of a circle of which the diameter is equal to one-third or less than onethird but greater than one-fourth the wave-length of the cut-off frequency. The cut-off or critical frequency is such that all frequencies above this value are transmitted without substantial attenuation. The horn illustrated has its sound passage designed in accordance with the above relationship and comprises a bell portion divided into two equal chambers 11, 12, Fig. 4, by a partition 13 in which are formed curved passages 15, 16, Fig. 6, communicating at their outer ends with the two chambers of the bell and at their inner ends with a common inlet 18 which is curved upwardly for connection at the top to a source of sound. The Specification contains a mathematical investigation into the determination of the power loss at the mouth of a horn and the method of making this loss a minimum and gives numerical examples of the manner of calculating the exact dimensions of horns which shall have such a minimum loss. Specification 213,528 is referred to.
Patent GB-1131519-A (GB)
Title: Improvements in indicator lamps
Inventor: COLLIER JOHN COVELL
IPC: H01R24/58
Filed: 1966-05-27
Abstract: 1,131,519. Lamp caps; plugboards. AMP. Inc. 17 May, 1967 [27 May, 1966], No. 23876/66. Heading H2E. A capless indicator lamp 1 for a crossed-bar distributer has its leads 2, 3 connected to respective contacts 5, 8 which are axially spaced along an insulating pin 6, the lamp 1 and pin 6 being parallel. As shown, a flexible plastics tube 7 surrounds the lamp lead 3 and constitutes the insulating pin 6, the contact 5 encircling the tube 7 and being soldered to the lamp head 2. In another embodiment (Fig. 2, not shown) one lead (13) from a capless discharge lamp is soldered to a contact sleeve (16) which is compressed around an insulating pin (18), the other lamp lead (14) being connected, through a resistor (12), to a contact (19) which is located at the end of the pin (18). The leads (13, 14) are insulated by varnish or by flexible insulating sleeves, and a housing which includes a finger grip may surround the resistor (12). An indicator lamp and its contact-carrying pin 6 (or 18) are received in respective apertures in the rear face of a crossed-bar distributer (Fig. 3, not shown), the pin-receiving aperture being aligned with crossed distributer contacts (24, 25), and the lamp-receiving aperture (27) extending through the distributer to its front face (21). Contact pins (26) for linking distributer contacts (24, 25) are received in further apertures in the distributer front face (21), a programming card (22) leaving only selected apertures (23) uncovered.
Patent GB-679641-A (GB)
Title: Improvements in or relating to structures for providing refracting media for radio waves
Inventor: BROWN JOHN
IPC: H01Q15/10
Filed: 1949-09-16
Abstract: 679,641. Radio refractors. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Sept. 18, 1950 [Sept. 16, 1949], No. 23904/49. Class 40 (vii). A refracting medium for radio waves of the type having a refractive indexless than unity comprises a plurality of grids arranged transversely to, and spaced along, the intended propagation path through the medium, each grid comprising a plurality of substantially parallel rod or wire conductors, which are also substantially parallel from grid to grid, spaced apart by less than half the freespace wavelength for which the medium is designed, the spacing of the grids along the intended propagation path being also limited similarly. Fig. 3 shows a section through a cylindrical plano-concave positive lens for focusing radio waves polarized in the plane of the section. The lens comprises a plurality of metallic rods 31, 32, &c. supported upon endplates 21, 22. The rods which do not extend all the way between the end plates are supported in dielectric tubes 37, 38, &c. The free ends of these rods may also be bent slightly to the right as shown so that they may be more nearly along the direction of polarization of radiation incident upon the curved surface. Fig. 4 illustrates a section of a cylindrical lens for focusing radio waves polarized perpendicularly to the plane of the section, and comprising a plurality of rods extending perpendicularly to the plane of the section. As shown, the inner contour of the lens is irregular; by suitably varying the spacing between the rods while also controlling the refractive index appropriately, a smooth inner contour may be achieved. Fig. 5 shows a lens comprising a rectangular array of uniformly-spaced rods, the diameters of which are so chosen that the refractive index decreases with increase of distance from the lens axis OE. In order to increase the range over which the refractive index may be varied, the central portion of the lens may include a block of dielectric within which the rods are placed. Presius and spherical lenses, which may be stepped, may also be constructed according to the invention. In the case of stepped lenses some short lengths of rod will require to be supported away from the endplates; these may be supported by dielectric tubes as described with reference to Fig. 3.
Patent GB-1177696-A (GB)
Title: Process for manufacturing saturated alcohols by oxidation of the corresponding saturated hydrocarbons
Inventor: ALAGY JACOB
IPC: C07C29/52
Filed: 1967-05-23
Abstract: 1,177,696. Hydrocarbon oxidation. INSTITUT FRANCAIS DU PETROLE DES CARBURANTS ET LUBRIFIANTS. 23 May, 1967 [23 May, 1966; 26 May, 1966; 1 March, 1967], No. 23957/67. Heading C2C. Alcohols are prepared by contacting C 5-8  hydrocarbons (saturated) in the liquid phase with a gas containing molecular oxygen in the presence of a boron compound and subsequently hydrolysing the reaction product, the process being characterized in that the organic phase from the hydrolysis step is contacted with a mineral base for a time sufficient to bring the amount of the formate of the desired alcohol, which is present as impurity, to a value between 40 and 200 parts per million by weight of the organic phase. The organic phase from the hydrolysis is preferably treated with at least one compound of molybdenum, tungsten or vanadium before or during the contact with the mineral base. After the contact with mineral base, the organic phase may thereafter be washed with water and subjected to partial distillation to remove non-converted hydrocarbon as well as 80 to 99% of the total amount of alcohol and ketone, and the residue may be further saponified so as to liberate further alcohol. Examples are given of the oxidation of cyclohexane and n-heptane.
Patent GB-1099535-A (GB)
Title: Improvements in or relating to screw pumps
Inventor: SPAANS MELIS GERRIT
IPC: F04B19/12
Filed: 1965-06-08
Abstract: 1,099,535. Archimedean screw pumps. NAAMLOOZE VENNOOTSCHAP MACHINE - FABRIEK SPAANS. April 28, 1966 [June 8, 1965; Nov. 13, 1965], Nos. 24084/65 and 48271/65. Heading F1C. In an Archimedean screw pump comprising an inclined screw C operating within a concrete trough A in a channel B, the trough is of semi-cylindrical form with flanks F<SP>1</SP>, F<SP>2</SP> lying in a common plane containing the screw axis G. At the ascending side of the screw, the trough is continued by a partcylindrical steel plate H united to upper and lower flanges K, L. The trough is roughly formed at A<SP>1</SP> using wooden shuttering secured to inverted arches depending from a temporary framework, and is then filled in by screeding, after which a working clearance is obtained by rotating the screw C in its bearings, a steel wire having previously been stretched, preferably somewhat helically, between endmost turns of the screw. The lower flange L of the plate H may be secured to the trough by rag-bolts cast into the latter, or a steel channel with inturned edges may be anchored in the concrete of the trough to receive bolts for this purpose. Preferably, however, the plate H is held in place by temporary longitudinal wires while concrete M is filled in behind it, plastic tubes N in the concrete surrounding ragbolts O previously fixed to the trough A. To ensure that the metal-faced block thus produced can be detached from the trough to allow removal of the screw C, bonding to the trough flank F<SP>1</SP> and to the channel B is prevented by paper or other interlays P. The flank F<SP>2</SP> collects any foreign matter or liquid thrown clear of the descending side of the screw C.
Patent GB-889986-A (GB)
Title: Improvements in or relating to indicating or control systems for dirigible craft
Inventor: TREADWELL RICHARD JULIAN
IPC: G05D1/02
Filed: 1958-07-25
Abstract: 889,986. Automatic steering control systems. SMITH & SONS (ENGLAND) Ltd., S. Oct. 23, 1959 [July 25, 1958], No. 24113/58. Class 38 (4). [Also in Group XL (c)] In an indicating or control system for use in steering a dirigible craft relative to a path in an oscillatory field, e.g. a radio, inductive electromagnetic, light or acoustic path, signals derived from the field are applied to phaseadvancing, limiting, and phase-delaying devices in cascade. In the arrangement shown, which relates to steering an aircraft in azimuth, signals from a potentiometer 15 operated by a gyro-magnetic compass are applied, in opposition to signals from a reference potentiometer 17, through a limiter 22 to means (not shown), connected to terminals 23, 24, which either operate to maintain the craft on a chosen heading by appropriate banking or indicate how a human pilot should steer to do so. Radio course signals are added by operating a relay B to substitute for potentiometer 17 a potentiometer 12 operated in dependence on deviations from a radio defined course. A relay M or R is also operated, according to whether the aircraft is approaching or leaving the ground transmitter, to apply signals from a radio receiver 1 through a phase advancer 4, a limiter 6 and an amplifier 7 to a follow-up servomotor 8 adjusting the potentiometer 12 through gearing 11. Signals from potentiometer 15 are also applied to the input of amplifier 7. Phase lag is introduced by applying feedback from a tachometer generator 9 to the input of amplifier 7. When the radio signals are not employed servomotor 8 serves to maintain potentiometer 12 in correspondence with potentiometer 15 in readiness for a changeover, the output of tachometer 9 being attenuated by resistor 10 to reduce the lag under these conditions. If the signals from the radio receiver become excessive in either sense a relay P or S is operated to substitute for potentiometer 12 a potentiometer 18 or 19 which applies a signal of sufficient fixed magnitude to return the aircraft to course.
Patent GB-701895-A (GB)
Title: Improvements in limiting devices for oscillatory currents
IPC: H01F29/14
Filed: 1952-09-26
Abstract: 701,895. Magnetic structures. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Sept. 26, 1952 [Oct. 1, 1951], No. 24181/52. Classes 38 (2) and 38 (4) The magnitude of A.C. through load R from source E is impeded from rising above a predetermined value by passing it through an inductor 1 having a core 2 which is premagnetized beyond its saturation point by a permanent magnet 3 of substantially non-conductive material having a coercive force greater than 750 oersteds. Core 2 is laminated or of other eddy current-free construction. Suitable materials form the subject of Specification 708,127. While the current remains below the predetermined value, the core 2 remains completely saturated but increase above that value effects desaturation in one half of each wave to a proportional extent. By connecting a winding 1<SP>1</SP> in series with winding 1 on a core 2<SP>1</SP> suitably magnetized by magnet 3, each wave half may desaturate a core. The change in flux upon desaturation may operate an alarm 8. Fig. 3 shows how the core impedance Z increases when load current i rises above predetermined value io. A modified arrangement is described in which the winding surrounds the magnet and is surrounded by the core, Fig. 5 (not shown).
Patent GB-461954-A (GB)
Title: Improvements relating to revolving chimney cowls
IPC: F23L17/10
Filed: 1936-09-04
Abstract: 461,954. Chimney cowls. PHILLIPS, I. C., and VOWLES, W. H., [Representatives of PHILLIPS, W.], and PHILLIPS, C. M. Sept. 4, 1936, No. 24210. [Class 25] Means for mounting a revolving chimney cowl 19 comprises a casing 13 supported by arms 16 from the uptake 15 and housing a cage formed by upper and lower discs 1, 2 with central bosses 4, 6 having vertical bores 5, 10 respectively, the discs being connected by spacing members 3 and the lower bore 10 opening into a housing 7 adapted to receive a footstep bearing 11 of hard metal or adamant material. The spindle 17 supporting the cowl passes through the bores 5 and 10 and rests on the bearing 11. The casing 13 is filled with lubricant.
Patent GB-231765-A (GB)
Title: Electric switching means for indicating electrical overloads
IPC: H01H71/24
Filed: 1924-10-13
Abstract: 231,765. Samper, J. Oct. 13, 1924. Electromagnetic switches tripped mechanically to reset indicators. - In a supply installation excess current beyond that contracted for raises a solenoid and closes a switch in the circuit of an indicating lamp, the switch being closed by a gravity latch until released by hand, after opening a locked casing, by the authorized person. In the form shown in Figs. 1 and 3 in which excess current closes the circuit of the indicating lamp but does not otherwise effect the supply, the core H when raised by the excess current lifts a bridging contact-carrying member F carried by a plate K guided by the projections K<1> so that a central contact is moved from a fixed contact M, Fig. 3, thereby breaking the circuit of the solenoid, and the bridging contact engages the fixed spring contacts D, E. This provides an alternative circuit through the lead 8 to the load and an additional circuit through the leads 7, 8 including the indicating lamp. The bridging member is maintained in the raised position by the gravity latch B engaging the plate K and the current to the indicating lamp can only be broken by the authorized person. In a modification the circuits are so arranged that the supply circuit is broken when the bridging member rises on overload.