baber/WOPTO huggingface dataset:
Patent GB-910415-A (GB)
Title: Improvements in or relating to safety devices for hot water delivery apparatus
Inventor: CHAPMAN FREDERICK WALTER
IPC: F24D17/00
Filed: 1959-06-01
Abstract: 910,415. Delivery arrangements for hot-water supply systems. MAIN WATER HEATERS Ltd. Dec. 30, 1959 [June 1, 1959], No. 18619/59. Class 64 (1). [Also in Groups I and XXIX] A pipe 17, 18, 24 supplying warm water, e.g. to a shower 12, has, in one part 18, a temperature-sensing pilot bulb (not shown), communicating by a tube 26 with a bellows in a casing 20 so that, if the water gets too hot, an adjustably spring-loaded valve (see Group XXIX) is opened by the expansion of the bellows and the water flows to a waste pipe 23 instead of to the shower 12. The warm water is a mixture of hot water (from a thermostatically-controlled instantaneous water heater 10 and delivered through a pipe 16 which may include hot supply taps 11) and cold water (from a by-pass, including a cock 25, from the pipe 13 which supplies cold water through a throttle valve 14 to the heater 10). To cool the warm water, so that it is not passed to waste by the thermally-controlled valve in the casing 20, the cold water by-pass valve 25 is opened by the shower occupant or by response of the pilot bulb in the pipe 18. Alternatively, the response of the bulb may actuate the throttle valve 14 or control the flow of hot water into the pipe 16 or actuate the heater. The temperature-responsive element may be of the forms described in Specifications 825,746, 827,146 and 844,015.
Patent GB-130012-A (GB)
Title: Improvements in or relating to Audion or Lamp Relay or Amplifying Apparatus.
Inventor: LATOUR MARIUS
IPC: H04B1/22
Filed: 1917-12-14
Abstract: 130,012. Latour, M. Nov. 30, 1916, [Convention datc]. Addition to 130,103 Wireless signalling.-A reeeiving- apparatus for wireless telegraphy and telephony comprises one or more three-electrode vacuum tubes 1, 2 for amplifying at high frequency, a tube 3 for rectifying or detecting the amplified oscillations, and one or more tubes 4 for amplifying the resulting lowfrequency current; the plates of all the tubes are connected to a common source of current 6, and capacities are connected in suitable positions in the circuits for the prevention of arcing. The incoming oscillations are impressed on the gridfilament circuit of the tube 1, the plate circuit of which is coupled through a high-frequency transformer 7 to the grid circuit of the tube 2. The plate circuit of this tube is coupled through a highfrequency step-up transformer 8 to the grid circuit of the detector tube 3, this grid circuit also including a small capacity 11 shunted by a high resistance. The plate circuit of the detector tube 3 is coupled through a low-frequency transformer 9 to the grid circuit of the low-frequency amplifying-tube 4, the plate circuit of which includes a telephone 10. For the prevention of arcing, a capacity 13 is connected across the grid and filament of the tube 4, and capacities 12, 14 are shunted respectively across the transformer primary 9 and the telephone 14. Specification 129,660 is referred to.
Patent GB-1438048-A (GB)
Title: Titrating system
IPC: G01N31/16
Filed: 1974-04-29
Abstract: 1438048 Titration system BLOCK ENG Inc 29 April 1974 [14 May 1973] 18705/74 Heading G1B A system for titrating a sample liquid with a titrant capable of reacting with the sample liquid to produce an observable end-point change comprises, in combination, first means for containing a body of titrant and second means for containing a body of sample, at least one of the first and second means (means 20 in Fig. 1) constituting a conduit for the flow of the corresponding body of fluid, a common wall disposed between the conduit and the other of the first and second means being porous to allow net flow of liquid between the body of liquid flowing through the conduit and the other body of liquid in the other means, and means for identifying the position along the conduit at which the end-point change is observable . For an acidbase titration, an indicator may be included in the sample stream, mixed with the titrant, coated on the inner or outer wall of the conduit or mixed with a particulate packing material such as sand within the conduit, and the end-point proportions of sample and titrant are related to the distance between the inlet end of the conduit and the point along scale 34 at which a colour change is observed in the conduit. In the embodiment of Fig. 3, the measurement is made in a conduit 20 arranged as a by-pass to the main stream the flow of which is constricted at 44, to eliminate variations in flowrate in the conduit arising from changes in viscosity in the main process stream.
Patent GB-1081867-A (GB)
Title: Packing for rotary-shaft bearings
Inventor: BOVAGNE RENE
IPC: F16J15/18
Filed: 1965-05-05
Abstract: 1,081,867. Shaft seals. SOCIETE DES FORGES ET ATELIERS DU CREUSOT. May 5, 1965, No. 18962/65. Heading F2B. A fluid-tight lubricated packing for a rotaryshaft 1, e.g. the shaft of an agitator in a vat for chemical products comprising packing rings 5 located between the shaft and a sleeve 6 and pressed axially by means of a piston 24, pressurized fluid being fed into a cylinder so as to act on a face 23 of the piston. The sleeve 6 is located in a housing 7 so as to leave an annular space divided into two chambers 12, 13 by rings 9, 10, 11, the chambers communicating, via ports 30, 31, with a space 4 between two sets of packing rings 5. In operation, pressurized oil is fed through a port 20 and flows via a passage 22 into the cylinder to act on the piston and thereby load the packing rings. The oil also serves to lubricate and cool the packing by flowing via a passage 40 into the chamber 12, through port 30 into the space 4 and then via port 31 into the chamber 13 where it is returned to a reservoir via a passage 34. The oil also flows through a space between the sleeve 6 and a jacket 2 rotatable with the shaft, at a pressure greater than that of the substance being sealed. In a modification, separate supplies are fed into the packing arrangement for pressurizing, lubricating and cooling the packing rings. Pressure-reducers and gauges may be used in the various supplies.
Patent GB-277152-A (GB)
Title: Electric condensers
IPC: H01G4/20
Filed: 1926-07-29
Abstract: 277,152. Barklie, R. H. D. July 29, 1926. Condensers comprise a sheet of paper on one side of which metal such as lead or an alloy of lead and tin is sprayed, the metallized side of the paper being then hot-rolled and polished on a cloth mop or dolly to link up all particles of the metal and form a thickness of one-thousandth of an inch. The paper is then formed into a roll and impregnated with wax. An uncoated margin of about a quarter of an inch is secured by protecting the edges of the strip during metallization or by means of paper or the like 2, 3.
Patent GB-697600-A (GB)
Title: Improvements in or relating to cleaning apparatus for grain and the like
IPC: B02B1/02
Filed: 1952-07-28
Abstract: 697,600. Pneumatic separating. SEGLER, G. July 28, 1952 [July 27, 1951], No. 19016/52. Class 117 [Also in Group XXVIII] In a grain &c. cleaning apparatus, a blower a forces air up the oblique channel d into a separating chamber j provided with a rotating basket l into which the air passes for return through channels q to the blower inlet. Grain from hopper e flows across a strainer g in the channel d to an exit aperture h leading to the runoff trough i, the flow being regulated by the slide f. Dust &c. carried up by the airstream is caught by the basket l and drops to be taken away by the channel n at the bottom of the separation chamber j. Channel n is provided with automatic shut-off flaps o. The blower and basket shafts are coupled by a belt drive, Fig. 2 (not shown).
Patent GB-1485616-A (GB)
Title: Apparatus for displaying an extreme value among a succession of digital values and method of testing pulse code modulation equipment using such apparatus
IPC: H04J3/14
Filed: 1973-04-19
Abstract: 1485616 Testing PCM channels POST OFFICE 4 July 1974 19143/73 HeadingGlU [Also in Division G4] A succession of digital values, e.g. from a selected PCM multi-plex time slot, are entered in a register 5 and are transferred to a further register 8 when the value in register 5 exceeds that in register 8, and when a predetermined number of values entered in register 5 are all less than that in register 8, a counter 21 resets register 8 and is itself reset. The apparatus is used for testing PCM equipment to check the A/D conversion of a known amplitude test oscillation applied to the channel under test by displaying, 24, the peak value. The contents of register 8 are transferred to a display register 20 whenever the value in register 5 is equal to that in register 8 or when the count in counter 21 reaches a threshold level, whereby the display can be made to follow a drop in signal level. A sign selector switch 26 enables a selected polarity of signal to be tested.
Patent GB-153103-A (GB)
Title: An apparatus for feeding predetermined quantities of shoddy and other fibrous materials or substances
IPC: D01G23/00
Filed: 1919-08-05
Abstract: 153,103. Porteus, G. Aug. 5, 1919. Feeding-devices; mixing in definite proportions.-Relates to feeding-apparatus of the horizontal endless-belt conveyer type for feeding predetermined quantities of shoddy or other fibrous materials or substances to mixing-machines &c., and comprises a hopper having a base casing containing a plurality of horizontally-arranged endless belts fitted with transverse blades and adapted to be moved in opposite directions beneath the base of the hopper in an intermittent manner from adjustable crank-pins on rotating disks through the medium of ratchet mechanisms so as to feed forward the material and deliver it through an outlet in the base of the casing. A number of hoppers having belt casings arranged side by side may be employed for feeding different materials or substances in predetermined quantities to mixing &c. machines. As shown, two hoppers 1, 9 with base casings 2, 10 containing endless belts 3, 4 and 11, 12 are arranged side by side. The belts 3. 4 are carried on end drums 5, 5x and 6. 6<x> and the belts 11, 12 on end drums 13, 13x and 14, 14<x>. The drums 5, 6, 13, 14 are keyed on their shafts 7, 8, 15, 16, while the drums 5<x>, 6<x>, 13<x>, 14<x> are loose on their shafts 8, 17, 16, 15 respectively. The shafts 7. 16 are fitted with ratchet mechanisms 7<x>, 16<x> coupled by rods 17, 18 to crank-pins 19, 20 which are adjustable on disks 21, 22 on a driving-shaft 23. The shafts 8, 15 are fitted with ratchet mechanisms 8<x>, 15<x> coupled by rods 25, 26 to adjustable crank-pins 27. 28 on disks 29, 30 on a driving-shaft 31. The endless belts are fitted with transveres blades 33, and the casings 2, 10 are each formed with an outlet 34 in the floor thereof. By adjusting the position of the crankpins on the disks, the quantity of material fed from the hoppers can be regulated.
Patent GB-1140088-A (GB)
Title: Benzimidazole complexes
IPC: C07D235/18
Filed: 1966-05-02
Abstract: 1,140,088. Benzimidazole complexes. MERCK & CO. Inc. 2 May, 1966 [6 May, 1965], No. 19208/66. Heading C2C. [Also in Division A51 The invention comprises complexes of compounds of formula wherein R is an aryl or halophenyl radical, a heteroaromatic radical having a 5-membered ring with one nitrogen, oxygen or sulphur hetero-atom or a heteroaromatic ring having a six-membered ring with one oxygen or sulphur hetero-atom, one of R 5  and R 6  is hydrogen and the other is a hydrogen or halogen atom or a C 1-5  alkyl, phenyl, halophenyl, thienyl, C 1-5  alkoxy, C 1-5  alkylthio, phenoxy or phenylthio radical, with a salt of zinc, cobalt, nickel, chromium, manganese, cadmium, molybdenum, tungsten or tin, and their preparation by intimate contact of the metal salt with the benzimidazole compound or an acid addition salt thereof. The compounds of the invention have anthelmintic activity and may be used in pharmaceutical or veterinary compositions. Complexes of benzimidazoles of the above formula with salts of copper, lead and iron are similarly prepared. 2 - (2<SP>1 </SP>- Furyl) - 5 - phenyl - benzimidazole is prepared by reaction of 2-amino-4-nitro-biphenyl with 2-furoyl chloride to give 3-(2<SP>1</SP>- furoylamino) - 4 nitro - biphenyl, followed by hydrogenation and cyclization. Ethyl - 5 - chloro - 2 - furoate, ethyl - 4,5- dichloro - 2 - furoate, ethyl - 3,5 - dichloro - 2- furoate and tetrachlorotetrahydrofuran are prepared by chlorination of ethyl-2-furoate to give ethyl - 2,3,4,5 - tetrachlorotetrahydrofuran-2-carboxylate and subjecting this to hydrolysis. 3,5 - Dichloro - 2 - furoic acid and 4,5- dichloro-2-fluroic acid are obtained by alkaline hydrolysis of their ethyl esters. 4-Chloro-2-furoic acid is obtained by treatment of 4,5-dichloro-2-furoic acid with zinc dust in glacial acetic acid.
Patent GB-1090117-A (GB)
Title: Polyvinyl chloride compositions
Inventor: WILSON ROBERT ARTHUR LAWRENCE
IPC: C08K5/41
Filed: 1964-05-08
Abstract: Compositions comprise a vinyl chloride polymer and as plasticizer a sulphone of formula R-SO2-R1 where R and R1 are unsubstituted alkyl or cycloalkyl.  The polymer may be a vinyl chloride homopolymer or copolymer with minor proportions of other monomers, e.g. vinyl acetate.  The compositions may also contain stabilizers, e.g. lead salts, barium, cadmium and zinc soaps and epoxides thereof, alkyl tin salts and phenolic antioxidants, and lubricants, e.g. waxes and soaps.  Examples describe compositions comprising polyvinyl chloride, white lead, calcium stearate and (1) n-butyl 2,4,4-trimethylpentyl sulphone, (2) octan-2-yl 2,4,4-trimethylpentyl sulphone, (3) diisooctyl sulphone, (4) nonyl 2,4,4-trimethylpentyl sulphone, (5) dinonyl sulphone, (6) t.-hexyl tetradecyl sulphone, (7) diisodecyl sulphone, and (8) ditridecyl sulphone.
Patent GB-844520-A (GB)
Title: Improvements in or relating to aircraft having an even number of propulsion units
IPC: B64C9/38
Filed: 1958-06-17
Abstract: 844,520. Controlling aircraft. SOC. DE BREVETS H. D. June 17, 1958 [June 17, 1957], No. 19375/58. Class 4. In an aircraft powered by two or greater even-number of power units 6a, 6b arranged symmetically on either side of the fuselage axis and wherein ailerons 5a, 5b are provided to correct a rolling tendency resulting from failure of a power unit, means such as a valve 9a, 9b and conduit 8a, 8b connect a source of pressure gas from the engine with slots adjacent the upper leading edges of the ailerons to increase the efficiency of the ailerons under such conditions. The control valves are operated automatically by an engine driven torque-meter, speed governor or pressure-responsive device. The source of pressure gas may be an enginedriven compressor or a tapping from the compressor of a gas turbine engine. The apparatus may be adapted to automatically deflect the appropriate aileron upon failure of an engine.
Patent GB-980723-A (GB)
Title: Improved sensing device for punched record media
Filed: 1963-05-16
Abstract: 980,723. Sensing records. INTERNATIONAL BUSINESS MACHINES CORPORATION. May 16, 1963 [May 30,1962], No. 19414/63. Heading G4M. A punched card or tape is sensed by means of a wheel 2 rotatably mounted on a shaft 3 in the bifurcated end of a member 1, the wheel 2 carrying a coiled spring 4 in a peripheral groove. In operation, coil 4 contacts a counter-rotating drum (not shown) in the absence of a card and is compressed radially by non-perforated regions of the card. In modifications a rubber ring is placed in the bottom of the groove in wheel 2, spring 4 has non-circular coils, and the groove in wheel 2 allows some lateral movement of spring 4.
Patent GB-921508-A (GB)
Title: New polymers and method for making same
IPC: C08G63/664
Filed: 1961-05-30
Abstract: 2-p-dioxanone is polymerized using as catalyst Rn-M-R1m where R is alkyl, aryl or aralkyl, R1 is hydrogen, halogen, hydroxy, alkoxy, aryloxy or acyloxy, n is 1 or 2, m is 0 or 1, n+m is 2 and M is a metal of Group IIb.  Specified catalysts include zinc alkyls, cadmium alkyls, and mercury alkyls, e.g. the diethyls, methyl zinc chloride, ethyl zinc chloride, ethyl ethoxy zinc, diphenyl mercury and n-butyl ethoxy cadmium.  The polymerization may take place in bulk or in solution, e.g. in benzene, toluene, xylene, dioxane, diethyl ether, chloroform and tetrahydrofuran, or in suspension, e.g. in n-heptane, the hexanes and the aliphatic petroleum ethers.
Patent GB-1307319-A (GB)
Title: Reactive substrate for a manifold copy system and its preparation
IPC: B41M5/155
Filed: 1970-04-23
Abstract: 1307319 Colour-reactive copying sheets US PLYWOOD-CHAMPION PAPERS Inc 23 April 1970 [23 April 1969] 19518/70 Heading D2B A reactive substrate for a manifold copying system is made by calcining a clay, cooking the calcined clay in a bath of acid (preferably sulphuric) to form aluminium salts and to activate the clay, removing part of the alumina from the clay, e.g. by filtering or centrifuging and washing, and applying the clay as a coating on to a paper web. The coating may also contain a binder, e.g. starch, hydroxyethyl cellulose, polyvinyl alcohol, methyl cellulose or a latex. An example describes the production of colour when microcapsules containing leuco dyes are ruptured on the clay coating.
Patent GB-1066546-A (GB)
Title: Fluid filtering apparatus
IPC: B01D29/15
Filed: 1964-05-11
Abstract: 1,066,546. Filtering apparatus. UNION TANK CAR CO. May 11, 1964 [May 21, 1963], No. 19576/64. Headings B1D and BIT. In a filter housing (Fig. 1, not shown) which is divided by a tube plate 26 into an inlet space (22) and a filtrate space (24), a plurality of hollow filter elements 30 being supported in the inlet space, the lower end of each element seals on a short tubular seat 40, extending through plate 26 and a fastening means 52 extends through the element with its lower end engaging the lower edge of tube 40 and its upper end carrying a spring 58 which urges the element downwards. In Figs. 1-5 the fastening means comprises a sinuous rod with a hook 52c to engage tube 40. In Figs. 6-8 (not shown), the fastening means comprises a V sectioned channel (120b) which engages the interior of the element and a lower cross piece (124) which is pushed axially through an opening in the lower end of the tubular seat and rotated to hold the element in place. The fastening means include upper sealing rings 62, compressed by the springs, and spacing flanges 60. Flanges 60 of adjacent elements engage (Fig. 2, not shown) and additional spacing bars (100, 104) may connect the upper ends of means 52. The filter housing comprises a vent (36) and a manhole 34. Prior to fitting an element on a tube 40, as illustrated in Fig. 5, a positioning means 66 is fitted into the lower end of the element, means 66 being compressible by virtue of an axial slot and serving to locate within tube 40 to prevent lateral movement of the element. Filter element 30 may be of nylon thread, wound to form a multi-layer element.
Patent GB-959812-A (GB)
Title: Preparation of methionine
Filed: 1961-05-31
Abstract: Methionine is manufactured by treating a -amino-g -methylmercaptobutyronitrile with an aqueous solution of barium hydroxide.  The hydrolysis is preferably carried out in an inert atmosphere, and an organic liquid containing one or more hydroxyl groups may also be present in the aqueous solution.  On completion of the reaction, the barium may be precipitated with ammonium carbonate or carbon dioxide, and the crude methionine, recovered by filtration and evaporation of the filtrate, may be purified by adsorption on a strongly acid ion exchanger in the H+ form and elution with ammonia or other volatile base.
Patent GB-1035821-A (GB)
Title: Infinitely variable transmission
Inventor: KEMPSON BERTRAM CARL
IPC: F02D29/04
Filed: 1962-05-22
Abstract: 1,035,821. Hydraulic transmission of power; change-speed control. DOWTY HYDRAULIC UNITS Ltd. May 9, 1963 [May 22, 1962], No. 19716/62. Addition to 933,641. Heading F2D. An engine drives through a continuouslyvariable-ratio gear and is controlled by an engine speed responsive means, which may consist of two governors, at high speeds the speed responsive means controlling the flow of fuel to the engine and at lower speeds controlling the gear ratio. As shown, a diesel engine 1 drives through a variable displacement pump 18 to a fixed displacement motor 22 in turn driving vehicle road wheels. A fuel injection pump 2 feeding the engine is controlled by a centrifugal governor 3 the working speed of which is adjusted by a lever 15 connected to a pedal 57. A fixed displacement pump 44 driven by the engine 1 feeds through a pipe 47 to a variable-size orifice 51 also adjusted by the pedal 57. The pressure drop across the orifice 51 is applied through pipes 76, 77 and a handactuated forward-reverse valve 64 to a doubleacting servo 27 sliding a rod 26 to vary the capacity of the pump 18. A spring 36 biases the rod 26 to its low-capacity central position. At road speeds below those within the normal range of the centrifugal governor 3, at any given setting determined by the position of the pedal 57, the engine speed responsive governor comprised by the pump 44, orifice 55 &c., so adjusts the capacity of the pump 18 that the pump 1 8/motor 22 gear ratio is reduced to counteract alterations of engine speed occasioned by variations of load. To obtain engine braking of the vehicle, a lever 87 is turned and thus opens a valve 81 connected to the pipe 47, the consequential reduction of pressure across the orifice 51 enabling the spring 36 to restore the pump 18 to its low capacity condition. Accordingly the vehicle wheels drive the engine at high speed. In a modification, Fig. 4 (not shown), the double-acting servo 27 and the forward-reverse valve 64 are replaced by a single-acting servo mounted in a forward-reverse control lever itself connected to the ratio control rod 26. The forward-reverse control lever is turned by hand in either direction from a central, neutral position to give a gradual take-up of drive after the pedal 57 has already been set.  Reference has been directed by the Comptroller to Specification 933,644.
Patent GB-352713-A (GB)
Title: Improvements in reversing mechanism
IPC: F16H3/00
Filed: 1930-06-30
Abstract: 352,713. Reversing-gearing. TROY LAUNDRY MACHINERY CO., Inc., 11, Park Place, New York, U.S.A. June 30, 1930, No. 19796. Convention date, Aug. 21, 1929. [Class 80 (ii).] Reversing-gearing for laundry machines comprises a single driving belt 40 which passes in opposite directions round pulleys on two shafts 20, 22 which are geared to the same driven wheel 12. Pulleys 26, 32, Fig. 3, in staggered relation are keyed to the shafts 20, 22 and wider pulleys 28, 34 are loose. The pulley 38, Fig. 5, is a guide. The belt 40, which passes over the pulley 32 and under the pulley 28, is moved laterally of Fig. 3 into the plane of either fast pulley to drive the wheel 12 in one direction or the other, or into a middle position where there is no drive. The wheel 12 may drive a washing machine, which may be automatically reversed by means shown in Fig. 4. A loose pulley 34, which is always driven by the belt, is geared to a wheel 46 with an eccentric pin 48 turning constantly in the space between two cams 50 in a frame carrying the belt shifter 52.
Patent GB-498926-A (GB)
Title: Improvements in roofing tiles and the like
IPC: E04D1/04
Filed: 1937-07-19
Abstract: 498,926. Roofing - tiles. GOSDEN, A. July 19, 1937, No. 19894. [Classes 20 (iv) and 87 (i)] A roofing-tile is provided with a convexshaped hanging nib F and a recess H leading to a hole or holes to receive a T- or U-shaped hanging pin ; a recess J or recesses are provided in the rear face of the tile to receive the pin in an inoperative position. A drift-barrier C, water-courses E and side ridges B are provided on the front face of the tile. Bounding ridges G are provided on the rear face of the tile. Specification 455,631 is referred to.