baber/WOPTO huggingface dataset:
Patent GB-1096697-A (GB)
Title: Process for liquefying natural gas
Inventor: ENGEL MANFRED OTTO
IPC: F25J1/00
Filed: 1966-09-27
Abstract: 1,096,697. Natural gas liquefaction process. INTERNATIONAL RESEARCH & DEVELOPMENT CO. Ltd. Sept. 27, 1966, No. 43031/66. Heading F4P. Natural gas is liquefied by compressing it at 2 to a high pressure, e.g. 200 ats., cooling in a heat exchanger 5 to its liquefaction temperature, expanding at a turbine 7 to an intermediate pressure, e.g. 20 ats., further cooling in a heat exchanger 9, flashing at valve 10 into a vessel 11 at a low pressure, e.g. 1À5 ats., withdrawing product liquid gas through a line 12 and recirculating the flash gas in a separate circuit to effect cooling of the feed in heat exchangers 5, 9. The flash gas leaving the warm end of exchanger 5 is compressed to 200 ats. at 16, 18, expanded to 20 ats. at a turbine 20 and a first portion of the cooled expanded flash gas is returned through a line 25 and exchanger 5 to the inlet of compressor 18, a second portion is cooled in a heat exchanger 14 and added at 28 to the liquid feed leaving turbine 7 at the same pressure, whilst the remainder of the flash gas is expanded to 1À5 ats. at 22 and returned to vessel 11.
Patent GB-1305074-A (GB)
IPC: F24H9/06
Filed: 1970-09-09
Abstract: 1305074 Water heater casings JUNKERS & CO GmbH 9 Sept 1970 [27 Sept 1969] 43063/70 Heading F4A Rear wall 10 of a gas-heated water heater is generally flat with at least two vertical trapezoidal channels 19 and carries water-cock (11), gas cock (12), combination chamber (14) with heat exchanger (15) at the top of burner (13), and back-draught safety device (16) leading the flue gases into an outlet duct (17). The vertical edges 18 of the rear wall comprise flanges 181 parallel to the general plane of the back wall but offset by oblique webs 182. Vertical grooves 183 at the roots of the oblique webs 182 form rearward projections to abut the mounting wall. The rear wall is made hotgalvanized metal sheet rolled or otherwise treated to give the required profile along its full length, finally being cut into sections and having the necessary holes 191, &c. made.
Patent GB-931087-A (GB)
Title: Cooling systems for internal combustion engines
IPC: F02B37/00
Filed: 1960-12-15
Abstract: 931,087. Pressurized cooling systems for internal - combustion engines. J. L. GRATZMULLER. Dec. 15, 1960 [Dec. 17, 1959; March 9, 1960; Dec. 7, 1960], No. 43179/60. Class 64 (3). Water or other liquid circulated by a pump P through a closed circuit cooling system of an internal-combustion engine 1 is maintained by pressurizing means other than the circulation pump P at a superatmospheric pressure sufficiently high to avoid the formation of steam and independent of the temperature and load conditions of the engine. The pressure may be applied by compressed air supplied through a line 11 to an expansion tank 8 above the liquid level therein (Fig. 4), by a pump other than the circulation pump (as for example pump 21, Fig. 17), or by means of a liquid column (Fig. 11, not shown). The expansion tank may, as indicated in Fig. 4 (and in Fig. 6. not shown), be connected into the " cold " fluid line 4 leading from the radiator 3. Alternatively, the tank 8 may be connected into the " hot " fluid line 2 between the engine and the radiator (Figs. 5, 8, 9, 10, not shown). The system may include means such as a valved container 13 (Fig. 4), for filling without loss of pressure and also a valve to relieve any excess pressure. Means to regulate the inflow of pressurized air to prevent damage to valves &c. on starting, may be provided. A system in which the engine is automatically set to idling condition should the coolant temperature exceed a prescribed maximum is described (Fig. 13, not shown). In Fig. 17 the engine coolant is circulated in a system 1-2-3-4 pressurized by the pump 21 supplying liquid from a reservoir 24. Excess water from this system is discharged through a non-return valve 145 into a second and lower pressure system 146-141-142-143 which includes a heat-exchanger 126 for cooling engine oil. Excess water from this latter system is discharged through a non-return valve 148 into a still lower pressure system 118-123-124-127 which includes a heat-exchanger 116 for cooling air supercharged in a compressor 113 driven by a turbine 111 operated by the engine exhaust gases. The arrangement includes an additional pump 155 (manual or power-operated) for filling purposes. The radiators 3, 141, 118 of the respective systems are arranged in line with respect to air flow so that the supercharging-air cooling circuit radiator 118 is exposed to the coolest air and the high-pressure engine coolant radiator 3 is exposed to warmer air from at least the radiator 118. The radiator arrangement may alternatively be as shown in Fig. 16.
Patent GB-944188-A (GB)
Title: Method of, and apparatus for, distributing mixed phase feed to beds
IPC: B01J8/02
Filed: 1961-12-04
Abstract: <PICT:0944188/C3/1> An apparatus for hydrodisulphurization of a feed of liquid and vaporized hydrocarbon and hydrogen with alumina coated with cobalt and molybdenum oxides has a feed inlet 30 with a distributer plate 17 for the liquid to collect and overflow into the bed by tubes 18.  The gas flows through the screen 20 and commingling with the liquids passes through the bed with reduced channelling to outlet 13.  Reference has been directed by the Comptroller to Specification 904,703.
Patent GB-1128640-A (GB)
Title: Improvements in or relating to distillate hydrocarbon fuels
Inventor: SMALL NORMAN JAMES HERBERT
IPC: C10L1/26
Filed: 1966-09-28
Abstract: 1,128,640. Fuels. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 27 July, 1967 [28 Sept., 1966], No. 43366/66. Heading C5C. A fuel comprises a major proportion of a distillate hydrocarbon oil, 98 vol. per cent of which distils below 400‹ C. and which has an ash content not exceeding 0À01 wt. per cent and 1-500 p.p.m. of a phosphorus-containing ester which is the reaction product of one mole of R(OH) x , where R is a C 1- C 3  hydrocarbon radical and x is an integer greater than 1, and 0À5-x moles of a mixture of (A) a C 50 + hydrocarbon substituted succinic acid or a halide, ester or anhydride thereof and (B) a phosphorus acid or halide, ester or anhydride thereof or phosphorus sulphide or oxysulphide, the ratio of (A): (B) being 0À1:1 to 10: 1. The fuel may also contain N,N<SP>1</SP>-disalicylidine-1,2-propane diamine, phenolic antioxidants (examples being given) and triphenyl phosphate.
Patent GB-1275664-A (GB)
Title: Closed tubular knitted product and method of forming same
IPC: D04B9/46
Filed: 1969-09-03
Abstract: 1275664 Knitting ELITEX-ZAVODY TEXTILNIHO STROJIRENSTVI GENERALNI REDITELSTVI 3 Sept 1969 [12 Sept 1968] 43504/69 Headings D1C and D1K A closed stocking, formed on a two-cylinder circular machine, comprises a tubular portion 18, Fig. 6, closed by a pouch portion 19, the latter comprising a face layer 20, composed of courses extending from selected wales of the tubular portion 18, a back layer 21 composed of courses extending from selected wales of the face layer 20, and a central layer 22 between the face and back layers and composed of courses extending from the remaining wales of the face layer, the last courses of the tubular portion and the back and central layers being knitted together after the last course of the central layer has been displaced circumferentially relative to the last courses of the tubular portion back layer so as to twist the layers and form the pouch portion. In the super-posed cylinder machine, inserts 7, 9 are provided in the upper and lower cylinders and the yarn 15, 15' is fed in by the guides 14, 14'. The knit work is withdrawn by an air current or mechanical means into the upper cylinder. The stocking 18 is knitted and then every other needle, viz needles 17, is transferred to the upper needle cylinder 1 leaving needles 17a, 17b in the lower cylinder 2. Then yarn 15 is laid by guide 14 in needles 17a, 17b to knit layer 20. Each third needle 17b is then transferred to the upper cylinder leaving needles 17a in the lower cylinder. Then needles 17a, 17b respectively knit yarns 15, 15' to form layers 21, 22 while needles 17 continue to hold the last course A of the main stocking. When layers 21, 22 reach the same length as layer 20, the upper cylinder is rotated at least through 180‹ e.g. 270‹, 360‹ or more to twist layer 21 relative to layers 21, 22. Needles 17b are transferred back to the lower cylinder and the cylinders relatively rotated to the same extent in the opposite sense to the original position. Needles 17 are then returned to the lower cylinder and one or more run-proof courses are knitted.
Patent GB-1378446-A (GB)
Title: Process for the manufacture of dicyanovinyl compounds
IPC: C07C255/37
Filed: 1972-09-20
Abstract: 1378446 Dicyanovinyl compounds CIBAGEIGY AG 20 Sept 1972 [24 Sept 1971 15 Aug 1972] 43585/72 Heading C2C Aromatic, heteroaromatic or aliphatic compounds containing at least one radical of the formula wherein R is an H atom, or an alkyl, cycloalkyl or aralkyl radical, are obtained by reacting a compound of formula wherein X is a halogen atom with (a) an aromatic or heteroaromatic compound which bears one or more electron-donating substituents with negative Brown substitution constants # p <SP>+</SP> and without mobile H atoms, (b) a #-excess-heteroaromatic compound, or (c) a CH-acid compound, in the absence of Lewis acid, in an anhydrous, preferably organic, medium, and optionally adding an acid-binding agent after the reaction with the 2,2-dicyanoethylene compound has been effected. Specified solvents are aliphatic and aromatic optionally chlorinated hydrocarbons, aliphatic ethers and low M.W. fatty acids. When the aromatic or heteroaromatic compound contains strongly basic groups as electron-donating substituents, the reaction with 1-halogeno-2,2-dicyano-ethylenes is carried out in a stepwise manner by reacting half the basic compound present to give the required 2,2- dicyanovinyl compound and then releasing the remainder of the basic compound from its hydrogen halide salt by adding an equivalent amount of an acid-binding agent. When the aromatic or heteroaromatic compounds are non- basic or at most weakly basic, the reaction may be carried out without the use of an acid-binding agent, the hydrogen halide produced being optionally removed by a stream of gas. Examples are given which illustrate the process of the invention.
Patent GB-1022241-A (GB)
Title: Vibratory pile driver
IPC: E02D7/18
Filed: 1962-11-19
Abstract: 1,022,241. Pile driving. A. G. BODINE. Nov. 19, 1962, No. 43551/62. Heading E1H. [Also in Division F2] A pile driver comprises a mechanical oscillator 42, Fig. 6 (not shown), providing a vertical vibrating output to a pile P through a coupling 40, post 125, 126 and column 41. The oscillator is driven by two I.C. engines 44 through shafts 45, Fig. 2 (not shown), shafts 86 and 96, Fig. 6, bevel gear 192, ring gear 200, telescopic sleeve 211, ring gear 221 and bevel gears 222 which are coupled to drive belt assemblies 250 and oscillator input shafts 265. The machine part R containing the oscillator, Fig. 2, is tiltable in trunnions 76, Fig. 6, by pneumatic cylinders 550, so that a pile may be picked up from the horizontal position, and the part R together with the engines 44 are supported by a beam structure, 47, 48, 49, 54 and 56 on columns 35 of a conventional tracked vehicle pile driving jig. The weight of the equipment excluding the oscillator 42 parts 40, 125, 126 and 41 is supported by an air spring 154, Fig. 6, which comprises two pressure chambers 140 and a piston 124 connected between the members 125, 126 so that vibration is not transmitted to the air spring housing and parts support thereon. Arcuate splines on the oscillator input shaft 265 allow for angular vibration of the shaft. Tilting of the pile together with the parts 40, 125, 126, 41 and oscillator 42 is accommodated by arcuate bearing rings 174 and 176, Fig. 6, and the part 171 of the supporting plate 111 which is joined to the trunnions 76 through a frusto-conical plate 108. Any tendency for the pile to twist during driving is increased by the reaction of the ring gear 221 driving the assemblies 250 which exerts a torque on the frame 233, keyed to the oscillator 42, causing it to rotate on bearings 235 and 240. The machine is hoisted or lowered on the columns 35 by a cable connected to the pulley block 69 and a downward biasing force can be applied by a cable 467 connected at one end to the supporting frame at 460 and at the other end to a power winch on the control vehicle, provision being made for adding ballast weight to the pile driver, e.g. by filling the columns 35 with water. One driving engine only may be used. The equipment may be used for pile extraction.
Patent GB-1141508-A (GB)
Title: Hydraulic power supply system
Inventor: CHECKLEY PETER EDWARD
IPC: F15B11/05
Filed: 1965-10-15
Abstract: 1,141,508. Fluid-pressure servomotor systems. DOWTY MINING EQUIPMENT Ltd. Sept. 30, 1966 [Oct.15, 1965], No. 43840/65. Heading G3P. In a control system for a variable displacement pump wherein the output pressure of the pump is maintained constant by varying the displacement thereof by means of a servopiston controlled by a first valve responsive to the output pressure, there is provided a second valve between the first valve and the servopiston which is responsive to pump inlet pressure so as to control the speed of movement of the piston in the displacement-increasing direction to prevent cavitation at the inlet. As shown, a boost pump 1 supplies variable displacement pump 6 via line 4 and pump 6 discharges through line 7. A pressure reducing valve 22 has a hollow differential spool 25 and receives liquid from line 7 and supplies liquid at a constant reduced pressure to servocontrol valve 23 via line 33. Valve 23 is controlled by pilot valve 41 and controls the supply and discharge of fluid to and from line 17 which communicates with chamber 15 of servomotor 13. Chamber 16 of the servomotor is pressurized via lines 18, 33 and the supply and discharge of fluid to and from this chamber is controlled by valve 24 which includes a spool 45 responsive to the pressure in line 4. A relief valve 21 in line 7 includes a closure member 49 having a bleed orifice 51 which allows actuating fluid to flow to valve 23. A pilot valve 54 for member 49 is set to open at a higher pressure than valve 41. In operation, pump 6 is biased to minimum displacement and, when the inlet pressure in line 4 is at the normal value determined by relief valve 5, the outlet pressure in line 7 is controlled by spool 34 (under the control of valve 41) which supplies servomotor 13. Under these conditions, valve 24 does not affect the rate of movement of the servopiston. If the inlet pressure falls, spool 45 rises to throttle the supply to chamber 16, whereby the movement of piston 14 takes place at a controlled rate to avoid cavitation at the inlet. Lines 4, 7 include respective accumulators 9, 11 and are connected to a chain of telescopic hydraulic units 8 controlling the speed of movement of freerunning vehicles along a track.
Patent GB-440342-A (GB)
Abstract: 440,342. Fluid-pressure servo-motors. REINEKE, J. H., 26, Castroperstrasse, Bochum, Germany. June 20, 1934, No. 18277. [Class 135] A diaphragm 1 is loaded by a spring 2 and subjected to the pressure in a pipe. The diaphragm is connected by a spring 3 to a control valve 4 of a servo-motor, the piston 13 of which is connected to a valve 12 in the pipe. The elements 7, 8 of the valve 4 have little or no overlap with the ports 9, 10 and the valve may be a loose fit in the cylinder 5. This arrangement results in an oscillation of the valve which may be assisted by a crank 11 connected to the valve by a spring 3<1>.
Patent GB-1501748-A (GB)
Title: Pulse generator circuits
IPC: H03K5/15
Filed: 1975-10-27
Abstract: 1501748 Semi-conductor pulse oscillator HITACHI Ltd 27 Oct 1975 [30 Oct 1974] 44205/75 Heading H3T A pulse oscillator comprises a ring of three FET inverter stages, each having a load and two having a coupling resistance means to the gate of the next stage, each gate being shunted by a capacitor which may be the gate capacitance of the FET. In an integrated circuit the loads and resistance means are all FET's and the capacitances added if necessary small enough to be integrated. Since all FET's on the IC tend to have consistent characteristics, the FET Tl of bias circuit BC will pass a large current producing a high bias across R3 if all the FET's in the circuit require a high bias to limit their currents; and similarly if low bias is required, stabilizing frequency against FET tolerances, supply voltage and temperature. All FET's Td- and Tztogether with T1 in the Figure are P- channel enhancement types, while TR1 and TR2 may be P-channel enhancement or depletion types. In an alternative embodiment (Fig. 4, not shown) the Tz- FET's are P-channel depletion types with the gates of Tzl and Tz2 taken to the bias line but with Tz3 gate connected to its own source (the Vout terminal). The T1 P-channel enhancement FET is shunted by a P-channel depletion type FET with its gate shorted to its source (ground). TR1 and TR2 are of P-channel depletion types. These modifications enable the inverter stages to be run at higher potentials, and provide a bias circuit BC compensating for variation in both enhancement and depletion types of FET.
Patent GB-1318593-A (GB)
Title: Sensitive silver halide photographic materials
IPC: G03C1/34
Filed: 1970-09-17
Abstract: 1318593 Photographic silver halide materials containing additives EASTMAN KODAK CO 17 Sept 1970 [17 Sept 1969] 44451/70 Heading G2C A sensitive photographic material comprises a support bearing a photographic silver halide layer and contains in that layer or in a layer adjacent thereto a compound of the formula:- wherein R is H, alkyl or aryl; R 1  is H, halogen, alkyl, aryl, OH or carboxyl or a group of the formula -O-CO-R<SP>1</SP> or wherein R<SP>1</SP> is alkyl, each of R 2 , R 3 , R 4  and R 5  is H, halogen, alkyl, aryl, OH or carboxyl or a group of the formula -O-CO-R<SP>1</SP>, each of x, y and z is 0 or 1, at least one of x and y being 1, each of a and b is 0, 1 or 2, and each of n 1 , n 2  and n 3 , or 1, 2-di(acetylmalate of glycerol-3-monostearate, 1-monosuccinate of diglycerol -7-monostearate, 2-monosuccinate of di(1, 2-propylene glycol)-2- monostearate or diethyleneglycol monostearate. The compound of the general formula above may be stearyl malate, stearyl acetyl malate, monosuccinate of 1, 3-butanediol monostearate, stearyl succinate, monosuccinate of propylene glycol monostearate, monosuccinate of glycerol monostearate, monomalate of glycerol monostearate, monoacetylmalate of glycerol monostearate or monosuccinate of ethylene glycol monostearate. These compounds are anti-foggants and may additionally be used as solvents for colour couplers in photographic silver halide emulsions.
Patent GB-906610-A (GB)
Title: Improvements in or relating to portable lifting arrangements
IPC: B66C23/20
Filed: 1959-12-31
Abstract: 906,610. Portable jib-cranes. GENERAL ELECTRIC CO. Ltd., and RICHES, W. Dec. 29, 1960 [Dec. 31, 1959], No. 44494/59. Class 78 (4). An upright tubular member 2, which may be supported on a radio mast by hooks 3, 4, rotatably supports an upright 1 carrying a jib 5 which is braced by tubular members 6, 7, 8, arranged as shown. A lifting rope passes over pulleys 13, 15, 14, 16, 17 to a source of power. A stop 19 may be provided to locate the upright 1 in any one of a plurality of slewed positions.
Patent GB-923576-A (GB)
Title: Floating production platform
IPC: E21B43/01
Filed: 1961-12-12
Abstract: 923,576. Offshore platforms. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. Dec. 12, 1961 [Dec. 14, 1960], No. 44513/61. Class 68 (2). [Also in Group XXXIII] An offshore platform for handling fluid from an oil and/or gas-filled in a water-covered area comprises a floating hull 12 and a float 27 connected (via lines 30, 31 depending from hoists 32, 33) to the platform and carrying the ends of flexible flowlines 23. The hull has a vertical opening 13 therethrough and is anchored by lines 41, 42. The upper end of each flowline 23 is secured by a flexible device 25 to the float 27 and is connected by releasable means (e.g. a pull-out pipe connector 22) to a pipe 20 extending from a manifold 17 on the working platform 14. The lower ends of the lines 30, 31 are connected to an anchor 40. In case of a storm the pipe connectors 22 are disconnected and the hoists 32, 33 set in motion to lower the anchor 40 and float 27. When the anchor reaches the ocean floor (Fig. 2) the lines 30, 31 are disconnected between the float 27 and the platform or are dropped from the hoists 32, 33.
Patent GB-445256-A (GB)
Abstract: 445,256. Pressure reservoir for liquid insulation. GENERAL CABLE CORPORATION, 420, Lexington Avenue, New York, U.S.A.-(Assignees of Atkinson, R. W. ; 389, Kearny Avenue, Perth Amboy, and Hagen, A. M. ; 18, Grove Avenue, Woodbridge, both in New Jersey, U.S.A.) Nov. 29, 1935, No. 33110. Convention date, Dec. 12, 1934. [Class 135] A reservoir for accommodating the expansion and contraction of the oil in an oil-filled cable 31 comprises a cylindrical container 5 with an inner wall 8 extending from the bottom and forming an annular chamber in which a sealing liquid 23, e.g. mercury, is contained. An inverted bell or cup-shaped member 13 with its side wall 12 immersed in the sealing liquid moves vertically in the container and is guided by the rod 14 moving in a guide sleeve 15. The space above the bell 13 is filled with oil and is in communication with the cable 31 through an outlet 4 and a conduit 33, whilst the lower compartment is filled with gas under pressure which acts upon the bell through an opening 11 in a cover member 9 secured to the upper edge of the inner wall 8. Thus, the bell 13 takes up a position in which the gas pressure on the lower side balances the oil pressure on the top side and adjusts itself to the expansion and contraction of the volume of oil in the cable. A filter 35 is provided in the conduit 33 in case the oil picks up any of the sealing liquid 23, and a window 25 enables the height of the liquid 23 to be observed, which gives an indication of the amount of the oil in the reservoir. A valve member 42 with an auxiliary spring-closed valve 43 is attached to the bell 13 to close the outlet 4 to prevent the sealing liquid 23 or the gas beneath the bell being forced into the cable when the bell rises to its upper limit.