baber/WOPTO huggingface dataset:
Patent GB-324365-A (GB)
Title: Improvements in liquid level indicators
IPC: G01F23/16
Filed: 1928-10-22
Abstract: 324,365. Mohr, A., and Ges. f³r Messund F³ll Apparate. Oct. 22, 1928. Indicators actuated by pressure of head of liquid.-Liquid level is indicated by means of a pump which transfers liquid from t he container to a chamber connected to a gauge glass and places it under the same pressure conditions as the liquid in the container. Subsequent fall of level is automatically indicated. The apparatus comprises a gauge glass 5, chamber 6, pump 1, valves 2, 3, and connecting pipes to the tank 8. Liquid from a previous measurement is first expelled from the glass 5 by operating the pump 1, the valves 2, 3 being set as in Fig. 1. Liquid is drawn from the glass 5 through pipe 4 into the pump, and expelled through valve 3 and pipes 15, 7 to the tank. The liquid is replaced by liquid rising through pipe 9 into vessel 6 and glass 5. The valves 2, 3 are then set as in Fig. 2, so that the pipe 4 empties into the tank, and the spaces above the liquid in glass 5, vessel 6. and tank 8 are placed in communication. Liquid sinks in the glass 5 and overflows at openings 17 into pipe 9 till the level in the pipe 9 is the same as in the tank. The valves 2, 3 are then set as in Fig. 3, and the pump operated to force air through a vent 26 into the chamber 6 till liquid is expelled from the pipe 9. The air pressure raises the liquid in the glass 5 to a height corresponding to the depth of the bottom of the pipe 9. If liquid is withdrawn from the tank, some air will escape from the bottom of the pipe 9, which will remain full, and the liquid falls in the glass 5 to a corresponding height, so that level readings are automatically given when the level is falling. The lower end of the pipe 9 is enlarged as in Fig. 5, and is provided with a tube 21 through which expelled air escapes. The lower edge of the bell 14 is cut away at 23 so that it may rest on the bottom of the tank. In a modification, Fig. 4 (not shown), two depending pipes 9 are provided, one of which extends only to half the depth of the tank, and either may be connected to the indicator by means of a 3-way valve. The gauge glass is provided with two scales for use with the two tubes 9 respectively, so that the level in a deep tank may be indicated on a glass of half the height which would otherwise be necessary. The air or gas necessary for measurement may be taken from the atmosphere or from a reservoir instead of from the tank 8.
Patent GB-866545-A (GB)
Title: Improvements in or relating to colour or tonal correction for use in printing processes
Inventor: ALLEN GORDON STANLEY JAMES
IPC: G03F3/06
Filed: 1958-09-24
Abstract: 866,545. Photographic colour or tonal correction. CROSLAND Ltd., J. F. Sept. 21, 1959 [Sept. 24, 1958], No. 30525/58. Class 98 (2) The correction, made more particularly in view of subsequent preparation of printing blocks or cylinders and imperfections in printing inks used therewith, is effected by exposing a phosphor layer to radiation of a first wavelength representing a first image and to radiation of a second wavelength representing the same or a different image, the phosphor being of a kind such that phosphorescence is produced or maintained by the first radiation and at least partly quenched by the second radiation, and then exposing a light-sensitive layer to the light pattern from the phosphor layer. Phosphors for the purpose are indicated by a reference to Levereng's "Luminescence of Solids", the radiations may be ultra violet and infra red, and various manners including simultaneous and sequential application thereof from the same or both sides of the phosphor layer are described. The light-sensitive layer may be present during such application. For colour work the Specification seems mostly to describe correction of a yellow separation negative, through which ultra violet radiation is passed to the phosphor layer followed by infra red radiation through the magenta separation using a spacing for "unsharp" masking effect, after which the photographic layer is developed to a positive. Other procedures include overall exposure of the phosphor layer and the use of orange light. For tonal correction exposures may be made through the same negative in such manner that the middle tones of the picture are reduced, thereby increasing the gradation of the high lights and shadows. Apparatus for the purpose shows, Fig. 1, a "light-integrating unit" 10 to reflect ultra-violet and infra-red radiations from sources 15, 16 respectively downwardly to frame 11 having hinged frames 12, 13, 14 for phosphor layer, separation transparencies to be :corrected and perform correction, and a plate for the final image, serially; while 17 is a mask to avoid direct exposure from the light sources. In Fig. 2 a conveyer 18 is made to carry the frame 11 for the phosphor layer successively beneath frames 12, 13, 14 not this time hinged together with the light-sources 15, 16 arranged above. Figs. 3-7 not shown are directed to various arrangements for simultaneous use of both light sources, with use of these either on opposite sides of the transparency-sensitive surface assembly, or at right angles to each other and with intermediate semi-transparent mirrors.
Patent GB-423995-A (GB)
Title: Improvements in thermionic valve circuits
IPC: H01J21/12
Filed: 1934-10-25
Abstract: 423,995. Valve circuits for wireless reception. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Oct. 25, 1934, No. 30630. Convention date, Oct. 27, 1933. [Class 40 (v)] In order to suppress parasitic or eddy oscillations in the oscillator portion of a pentagrid or similar type of frequency changer valve, the inductance coupled to the anode electrode of the oscillator is damped. This may be effected by utilizing the resistance R2 in the high tension circuit of the oscillator anode g<2>, which resistance is effectively in shunt with the coil L1, on the natural frequency of which the valve tends to oscillate. Alternatively L1 may be enclosed in an asbestos casing or may be wholly or partly covered with asbestos. Specifications 408,256, 408,328, and 408,330 are referred to.
Patent GB-685770-A (GB)
Title: Improvements relating to helmets
IPC: A42B3/14
Filed: 1949-11-30
Abstract: 685,770. Helmets. ANGLO-IRANIAN OIL CO., Ltd., and MACLEAN, T. T. Nov. 27, 1950 [Nov. 30, 1949], No. 30698/49. Class 63. A headband is mounted within a helmet 11 by means of resilient strips 10 which are disposed to lie circumferentially adjacent the rim 12 thus allowing the attachment of a large range of headband sizes. The headband is detachably secured e.g. by press studs. The strips 10 may be mounted on a frame within the helmet.
Patent GB-305728-A (GB)
Title: An improved foot valve for liquid pumps
IPC: F04B53/10
Filed: 1927-11-15
Abstract: 305,728. Rolfe, J. A., and Hatch, W. G. Nov. 15, 1927. Valves and valve seats, arrangement of; valves, facilitating removal of.- The foot valve of a liquid pump comprises a pair of valves a, b located in the same axis one above the other on their own seatings c<1>, c<2> and in series in the fluid passage; the valves may be carried by a cage c removably mounted in a housing f. The housing is threaded to receive a union h, for connection to the pump, by which the cage is held in position; a strainer l is secured between the bottom of the cage c and a retaining flange g on the housing f. The upper valve a has a stem a<2> sliding in a sleeve b<2> of the lower valve b, this latter being guided in a ring d carried by arms d<1> extending from the cage c. Wings a<1>, b<1> are formed on the valves a, b to guide the valves and to cause a turning movement so that the valve seatings are worn evenly. The housing f is recessed at j to prevent distortion of the cage and valve seatings by any deformation of the housing.
Patent GB-1157814-A (GB)
Title: Hair Curler
IPC: A45D2/24
Filed: 1966-07-11
Abstract: 1,157,814. Hair-curling apparatus. SKYLINE OIL CO. 11 July, 1966 [19 July, 1965], No. 30986/66. Heading A4V. Hair-curling apparatus comprises a rotatable post about which a hair tuft is loosely wound and gripped by a clasp pivoted to the post, and a clamp for gripping hair strands between the scalp and the post, so that the tuft can be tightly wound against the resistance of the clamp, means being provided for locking the post and clasp in a wound position. In Fig. 1, a tuft 10 is loosely wound about post 11 and loosely gripped by clasp 12 A tuft enclosure 22 comprises a pair of separable sections 23, 24 closable about post 11, clasp 12 and the tuft by pivoting about hinge pin 31, the hair strands 21 leading towards the tuft 10 being firmly clamped between sawtooth edges 27, 28 carried on the sections 23, 24. The end 34 of post 11 is received in aperture 33 of enclosure 22, and the tuft is then tightly wound against the resistance of the clamp by rotation of cap 18 carried on the other end 19 of post 11. The wound position is maintained by interlocking detents 43, 43a carried on cap 18 and enclosure 22. Fig. 1 illustrates the curler with the post and clasp axially separated from the enclosure prior to clamping. In an alternative embodiment (Fig. 6, not shown), the post (65) and clasp (66) are rotatably mounted between two annular members (61), (62), connected by an arcuate portion (63). The portion (63) supports one section (76) of the clamp to which the second section (77) is pivoted, the sawtooth elements (78) being provided on the two clamp sections. A rotatable cap (86) fixed to post (65) carries an inwardly extending skirt encircling member (62), both the skirt and the member (62) having detents formed in their peripheries. The jaws of the clamp can be lined with resilient material, and can be latched together by means of parts (83), (85).
Patent GB-193470-A (GB)
Title: Improvements in or relating to educational sheets
IPC: G09B17/00
Filed: 1921-11-21
Abstract: 193,470. Rees, D. J., and Educational Publishing Co., Ltd. Nov. 21, 1921, Teaching writing; charts.-Relates to educational sheets bearing letters, numerals or the like which are visible to the eye and also distinguishable by touch. The characters 11 are distinguished by touch by forming from the material of the sheet 10 a series of protuberances 12 which follow the outline of the character. The character is printed in lines of a colour different from that of the sheet, and the protuberances, which are formed by indenting the back of the sheet, extend over the whole area of the character.
Patent GB-1097264-A (GB)
Title: Gas and liquid separator for gas analysis
IPC: G01N33/487
Filed: 1965-07-21
Abstract: 1,097,264. Separating gases from liquids. TECHNICON INSTRUMENTS CORPORATION. July 21, 1965 [Aug. 12, 1964], No. 31048/65. Headings B1M and B1X. In the continuous testing of liquids having gas-releasable components by (a) adding a reagent to release the gas, (2) separating the gas from the liquid and, (3) treating the separated gas for analysis, stage (2) is carried out in a gas trap 42 in which an additional needle-like gas conduit 48 has its outlet 49 directed towards the liquid-gas inlet 40 so that additional gas issuing from outlet 49 bursts bubbles of gas which are growing in size on entry through inlet 40, the released gas rising through the trap and passing through outlet 44 for analysis. Liquid, free of gas, passes out through outlet 46 and pump tube 24 to a sump. Liquid containing gas to be tested, e.g. blood plasma or serum, is passed through tube and is fed with acid from pump tube 14 and with carbon dioxide free air from tube 16. In mixing coil 36 the carbon dioxide is liberated prior to passing into gas trap 42. The liberated gas leaving the trap through outlet 44 reacts with a colour reagent fed through tube 62, and the optical density of the stream of gas is measured in flow cell 72 by a monochromatic light source 74.
Patent GB-172616-A (GB)
Title: Improvements in or relating to telephone instruments
IPC: H04M1/08
Filed: 1921-11-21
Abstract: 172,616. Automatic Telephone Manufacturing Co., Ltd., (Assignees of Erickson, J.). Dec. 7, 1920, [Convention date]. Telephones, mounting and suporting.-Relates to telephone instruments of the pillar type in which the transmitter support, tubular standard, and base are arranged in such a manner that they may be secured together by a single screw and in which a clear passage is left for the cords &c., which connect the transmitter and switch hook to the terminal block in the base. An arrangerrent is also described whereby the switch hook is locked in its operative position when the receiver is removed. As shown in Fig. 2, the mounting plate 7 is secured to the transmitter support 6 and carries the four springs 25 - - 28 whose function is to open the bell circuit and close the line circuit whenever the receiver is removed from the hook. A lever 12 pivoted to the plate 7 carries a spring 17 which acts against a stud 41 to push the lever against the switch hook 1. The locking lever 2 shown in Figs. 2 and 5 is pivoted to the plate 7 and is forced outward by the spring 18, which is carried by the lever 12, to engage and lock the switch hook 1, whenever the latter moves up in response to the removal of the receiver. The screw 9 holds the tube 3, base 4, and support 14, which supports the binding posts 10, 11 in position through the intermediary of the clamping-piece 8 when it is screwed into the plate 7. When the switch hook 1 is raised by the lever 12, the spring 18 pushes the locking lever 2 to the left until it locks the switch hook 1 as is shown in Fig. 5. When the receiver is replaced, the locking lever 2 is forced back and the switch-hook moves down under the weight of the receiver.
Patent GB-279665-A (GB)
Title: Method of and means for measuring velocities
IPC: G01P3/46
Filed: 1926-12-08
Abstract: 279,665. Proskauer, O. Dec. 8, J926. Electric speed-indicators.-In an electric speed-indicator of the type in which an ammeter k is arranged in circuit with an interrupter h driven by the element, the speed of which is to be measured, a condenser u is arranged in parallel with an inductance l in the circuit.
Patent GB-935297-A (GB)
Title: Improved sprinkler alarm valve
Inventor: ALLEN GEORGE
IPC: A62C35/60
Filed: 1960-09-09
Abstract: 935,297. Fire-extinguishing. MATTHEW HALL & CO. Ltd. Sept. 9, 1960, No. 31206/60. Class 47. [Also in Group XXIX] An alarm valve for a sprinkler system, operable in either dry or wet pipe systems, comprises a body having a valve opening and an alarm port, the port being closable by a hinged clack, which co-operates with a lever system operable from outside the body to hold the clack closed in the dry state and open in the wet state of the system. The clack 7, in its closed position, is engaged by the lever 22 which is held down by a second lever 24 pivoted together with the clack on a spindle 9, the lever 24 being held down by a crank 25 on a spindle 26. A counter-weighted bell-crank lever 34 is also secured on the spindle 26 and is normally held with an arm vertical by a ball-catch 38, Fig. 4. The ball is held projected from its socket by a slide 51 under the control of a spring 58 and a flexible diaphragm 46. In the position shown, the system is filled with air under pressure and the inlet 2 is open to the water supply. If the air pressure is released, the slide 51 will be moved by the spring 58 allowing the ball 38 to fall into a cut-away portion to release the lever 34, which, under the influence of the counterweight, swings to cause the crank 25 to release the lever 24 and allow the water pressure to open the clack and uncover the alarm port 19. In the wet state, the levers 22, 24 are held raised, pressure on the diaphragm being supplied by the water in the system; opening of one of the sprinkler heads will again allow the water to open the clack.
Patent GB-599902-A (GB)
Title: Improvements in or relating to device of the kind comprising a discharge tube in which the electrons are concentrated in a beam and traverse a velocity control space
IPC: H01J25/10
Filed: 1945-11-20
Abstract: 599,902. Velocity-modulated tubes. PHILIPS-LAMPS, Ltd. Nov. 20, 1945, No. 31207. Convention date, July 19, 1940. [Class 39 (i)] An electron beam, from cathode 13, control electrode 15 and anode 16, passes through four electrodes, of which the two outermost 23, 24 are preferably connected together and delimit a control space wherein cumulative velocity modulation occurs at all three gaps between the electrodes, control voltage for this purpose being applied to the inner electrodes 26, 27 in antiphase. If the transit time of an electron through each of electrodes 26, 27 is chosen to be half the period of the controlling oscillation a maximum velocity increment corresponding to four times the oscillation amplitude can be obtained. If the transit time is a quarter of a period the increment is halved, but the length, and hence the capacity, of each control electrode is reduced. Intermediate values of transit time may be used. The antiphase voltages may be conveyed to the electrodes by Lecher wires 28, which may be doubled to reduce capacity, or by a hollow resonator integral with them. After conversion to density modulation in the drift tube 24, energy is abstracted at the same or a harmonic frequency by an identical system 24, 36, 37, 34, after which the beam passes to anode 20 through suppressor electrode 21. Focusing coils 40 prevent the spreading of the beam. The subject-matter is identical with that of Specification 556,211.
Patent GB-729504-A (GB)
Title: Improvements in or relating to methods of producing uranium and its alloys
IPC: C22B60/02
Filed: 1952-12-09
Abstract: Uranium and uranium alloys are recovered by a process involving the reduction of compounds of uranium with a reducing substance consisting of lithium, lithium-sodium alloy, lithium-potassium alloy or lithium-sodium-potassium alloy which reducing substance may also contain a proportion of calcium and/or magnesium, the reduction being carried out substantially in the absence of reactive gases and at a temperature above the fusion temperature of the reducing substance. The process is applicable to the reduction of uranium oxides and oxygen-containing compounds in which the uranium is in the acid radical, and is preferably carried out in the presence of an inert gas such as argon.  The oxide of the reducing substance and excess reducing substance are leached out with water, the resulting solution of lithium hydroxide is neutralized with hydrochloric acid to a pH of about p  6, evaporated to dryness and lithium metal separated from the chloride residue, e.g. by electrolysis.  Specification 729,503 is referred to.
Patent GB-397098-A (GB)
Title: Improvements in and relating to spinning centrifuges
IPC: D01D7/02
Filed: 1931-11-11
Abstract: 397,098. Centrifugal spinning-apparatus for artificial silk. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.-(Assignees of Allgemeine Elektricitats-Ges.; 2, Friedrich Karl-Ufer, Berlin.) Nov. 11, 1931, No. 31269. Convention date, Nov. 11, 1930. Void [Published under Sect. 91 of the Acts]. [Class 120 (ii).] The guide tube of centrifugal apparatus for spinning artificial silk is reciprocated by means driven from the driving- spindle of the apparatus and comprising a cam, or a double-threaded spindle 8, which, with the transmission gear 4, 6, may be mounted in a casing 11 carried by the casing of the driving and suspension gear.
Patent GB-1237454-A (GB)
Title: Titanium-base alloys
Inventor: GOOSEY RICHARD ERNEST
IPC: C22C14/00
Filed: 1968-07-01
Abstract: 1,237,454. Titanium alloys. IMPERIAL METAL INDUSTRIES (KYNOCH) Ltd. June 25, 1969 [July 1, 1968], No.31369/68. Heading C7A. A titanium-base alloy has a composition in the range Cu 1À5-3À5% one or more of the following up to 5À0% in total Al 0-25-3-0% Zr 0À25-3À0% Si 0À1-0À5% Ti the balance apart from impurities. C and N may be present in normal impurity proportions and O may be present up to 0À25%. The alloy, which is intended for use as sheet, may be solution treated above 775‹C., e.g. 810-820‹C., and age-hardened in the range 410-425‹C.
Patent GB-1447836-A (GB)
Title: Hydraulic pressure control valve
IPC: G05D16/10
Filed: 1974-07-16
Abstract: 1447836 Fluid-pressure servomotor systems NISSAN MOTOR CO Ltd 16 July 1974 [8 Aug 1973] 31411/74 Heading G3P An hydraulic pressure control system is contained in a body 12 secured in a body (10) Fig. 1 (not shown) which it divides into accumulator and spring chambers 16, 18, the body having two longitudinal leaves housing main 46 and pilot 62 valves with control piston 60, accumulator pressure being raised by a supply at 28 acts on piston 60 against spring 68 so that the spool 62 moves in accordance with accumulator pressure directing pressure to either, both sides of land 50, Fig. 3a, thus closing the main valve 52, or one side, Fig. 3b, opening the main valve to drain 26, thereby controlling the accumulator pressure. The pilot valve and piston may be in one piece (74) Fig. 4 (not shown) and the main valve may be a poppett or spool. A check valve 36, 38 inhibits loss of accumulator pressure if the supply falls below that of the accumulator.
Patent GB-1468244-A (GB)
Title: Electrolytic preparation of intercalated chalcogenides
IPC: C25B1/00
Filed: 1974-07-16
Abstract: 1468244 Cells with tantalum disulphide electrodes EXXON RESEARCH & ENG CO 16 July 1974 [10 Sept 1973] 31433/74 Heading H1B [Also in Division C7] A cell comprising an Ag wire anode and TaS 2  cathode in aq. AgNO 3  has an open-circuit voltage of -0À14 V. With a Cu anode and aq. CuSO 4  electrolyte this voltage is -0À2 V.
Patent GB-1008116-A (GB)
Title: Motor vehicle transmission-drive line units
Inventor: LYNES ARTHUR EDWARD
IPC: F16H3/091
Filed: 1963-08-09
Abstract: 1,008,116. Change-speed gearing. FORD MOTOR CO. Ltd. Aug. 9, 1963 [Aug. 9, 1963], No. 31461/63. Heading F2D. [Also in Division B7] In a motor vehicle transmission a shaft 21 coupled to the engine crank-shaft 1 by an hydraulic torque converter 4 carries a gear 27 driving a transfer gear cluster 31, 35 meshing with gears 37, 41 selectively connectable by fluid-actuated friction clutches 47, 49 to an output shaft 45 which drives a differential disposed beneath the engine. The gears 37, 41 are carried by sleeve shafts 39, 43 arranged coaxially about the output shaft 45 and each provided with a hub 51 having splined thereto friction discs 53 engageable by fluid pressure applied to an annular piston 65 with discs 55 splined to a clutch housing 63 on the output shaft 45. A reverse idler gear 64 (Fig. 2) meshing with the transfer gear 35 is connectable by a splined sleeve 69 to a gear 77 meshing with a gear 67 splined to the clutch housing 63. The differential crown wheel 88 is driven by a pinion 87 on a sleeve 83 splined to the output shaft 45.