baber/WOPTO huggingface dataset:
Patent GB-676801-A (GB)
Title: Improvements in and relating to the production of catalysts
IPC: B01J37/26
Filed: 1949-12-02
Abstract: Hydrocarbon conversion reactions, such as isomerization, polymerization, alkylation, and de-alkylation, e.g. the conversion of tertiary butyl benzene to benzene and isobutene at 400 DEG  C., and of para xylene to a mixture of ortho and meta xylenes at 430 DEG  C., are carried out with a catalyst comprising one or more oxides of Al, Zr, Be and Ti which have been treated with silicon tetrafluoride (see Group III).ALSO:A catalyst for hydrocarbon conversion reactions (see Group IV(b)), is prepared by contacting one or more oxides of Al, Zr, Be and Ti with silicone tetrafluoride, preferably at -80 DEG  to 500 DEG C, the oxides being substantially free from alkali-metal compounds and containing less than 3 per cent by weight of water, the contacting step, when alumina is being treated being carried out in such a manner that a catalyst with a fluorine content of 1 per cent-15 per cent is obtained.  The catalyst may also include silica or magnesia and the oxide to be treated may be a silica-alumina gel. The oxides are preheated to eliminate water and methods for preparing alumina free from alkali-metal compounds include (1), the hydrolysis of an aluminium alkoxide, e.g. secondary butoxide, with aqueous ammonia or acid, and (2), the hydrolysis of an aluminium amalgam by allowing aluminium to stand in a mixture of mercurous nitrate solution and formic acid until the aluminium dissolves and an aluminia sludge is formed.  When an p  alumina-silica gel is employed it may be prepared as described in Specification 649,999.  The catalyst may be regenerated by heating in air and reactivated by a further treatment with silicon tetraflouride.
Patent GB-882137-A (GB)
Title: Bulkhead fitting for pumps
Inventor: CARSLAW CHARLES HENDERSON
IPC: F16J15/50
Filed: 1959-09-11
Abstract: 882,137. Joint-making packings. DRYSDALE & CO. Ltd. Aug. 31, 1960 [Sept. 11, 1959], No. 31036/59. Class 122 (3). A bulkhead fitting for pumps consists of a flexible bellows 6, e.g. of stainless steel, surrounding a driving shaft 2 between a prime mover 1 and a pump 3 separated by a bulkhead 5, and secured to the bulkhead and to a fixed part, e.g. the flange 7, of the pump. A protective shield 8 is secured to the bulkhead above the bellows. An oil seal 10 or a greaselubricated bearing prevents leakage along the shaft 2.
Patent GB-467264-A (GB)
Title: Electromagnetic apparatus especially for cleaning, painting and otherwise treating submerged parts of metal vessels
IPC: B63B59/10
Filed: 1935-11-09
Abstract: 467,264. Cleaning ships' hulls. KYRIAKOPOULOS, G. K., and CHRYSSOCHOIDES, A. G. Nov. 9, 1935, No. 31041. Convention date, Nov. 10, 1934. [Class 113 (i)] Ships' hulls are cleaned by a travelling carriage carrying rotating brushes and other devices for operating on the skin plating. The carriage is caused to cling to the plating by the provision of electromagnets actuated from the driving- motor, the solenoids of the magnet, the driving- wheels of the carriage and the ships' plating forming a closed electromagnetic path. According to the invention, the core 2 of the solenoid surrounded by the coils 3 energized from the motor 16, supports one end of the pair of shafts 5 on which the travelling wheels 6 are mounted. The driving-gear includes clutches 21 by operating which the device may be guided in any desired direction. The brush 7 is mounted on a spring-controlled hollow-arm 8 within which the driving-gear is arranged. The transmission mechanism is contained within a water-tight casing 1 and the device may be provided with a tank 33 by means of which the buoyancy may be regulated. The apparatus may be provided with a third driving wheel or two of the carriages may be coupled together in which case the third wheel is removed.
Patent GB-617698-A (GB)
Title: Improvements in parachute packs
IPC: B64D17/40
Filed: 1946-10-18
Abstract: 617,698. Parachutes. QUILTER, J. R. C. Oct. 18, 1946, No. 31057. [Class 4] In a parachute pack of the type in which the main closure flaps are normally locked by engagement with cones or studs through which a rip cord pin or the like is passed, and including an auxiliary or pilot parachute stowed separately from the main parachute, such as described in Specification 405,693, the pilot parachute is separated from the main parachute by at least one flap which carries the locking cones or studs for engagement by the main closure flaps, the pilot parachute being stowed between the cone-carrying flaps and the main closure flaps, so that the pressure of its opening spring tends to force the main flaps off the locking cones or studs. As shown, the compartments for the main and pilot parachutes 27, 35 are separated by flaps 30 secured to the main side flaps 14, 15, one of the flaps carrying locking cones 32 which are passed through eyelets 16 in the main flaps, and with which the rip cord pins 24 engage. The pilot parachute, which is fitted with an opening spring, and with an ejector board 39 as described in Specification 531,882, is retained in position by a diametral tape 36, the ends of which are provided with eyelets also engaged by the cones 32. Upon operation of the rip cord the main flaps are freed, the opening spring of the pilot parachute forces the tape 36 off the cones 32, the ejector board 39 being pressed against the flaps 30 to hold the main canopy folded until the pilot parachute springs from the pack.
Patent GB-1476201-A (GB)
Title: Separation of carbon dioxide in ethylene oxide process
IPC: C07C7/05
Filed: 1974-07-15
Abstract: 1476201 Separation of carbon dioxide in ethylene oxide process SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 15 July 1974 [16 July 1973] 31158/74 Heading C2C The invention relates to a process for the concentration and purification of ethylene oxide, obtained by the oxidation of ethylene with molecular oxygen by treating the reaction mixture with an aqueous medium in an absorption zone, the resulting aqueous ethylene oxide-containing absorbate being further processed, wherein at least a portion of the overhead stream from the adsorption zone is contacted with an aqueous carbon dioxide absorbent in a scrubbing zone, thereby producing a hydrocarbon-rich overhead and a carbon dioxide-fat absorbate containing hydrocarbon, flashing the carbon dioxide absorbate obtained to produce a hydrocarbon-containing vapour stream and a hydrocarbon-lean, carbon dioxidefat absorbate which is stripped in a stripping zone to produce a carbon dioxide stream substantially free of hydrocarbon.
Patent GB-1267488-A (GB)
Title: Improvements in or relating to garbage containers
Inventor: BOUGHTON THOMAS TRAFFORD
IPC: B65F3/28
Filed: 1969-06-13
Abstract: 1,267,488. Refuse containers. T. T. BOUGHTON & SONS Ltd. 30 April, 1970 [13 June, 1969], No. 31251/71. Divided out of 1,249,818. Heading B8E. Refuse is discharged from a container by pulling ropes 8, 9, which are releasably held in position until unloading is effected by resilient clips 13 arranged along each longitudinal internal edge of the container. The clips may be of rubber or nylon.
Patent GB-1390855-A (GB)
Title: Optical devices
IPC: G08C23/04
Filed: 1972-07-04
Abstract: 1390855 Monitoring position photo-electrically BUCODE Inc 4 July 1972 [15 Nov 1971] 31281/72 Heading G1A [Also in Division G2] An elongate block 10 of light-transmitting material has one stepped side, the steps 12 being arranged as shown in Fig. 1, at 45 degrees to the long axis of the block. This block may be used in a system for detecting the presence of an object. A light placed adjacent face 11 of the block produces a reflected beam from each step. The widths of the steps may be different to compensate for different lengths of travel through the block, so that equal amounts of light is reflected from each step. Alternatively, the block may be used to collect light and reflect it to a light-sensitive device, which provides an output which increases in steps depending on the number of steps illuminated. Such an arrangement may be used to indicate the length of magnetic tape in a tape transport arrangement.
Patent GB-972499-A (GB)
Title: Improvements in or relating to storage tube circuit arrangements
Inventor: PLAISTOWE DONALD LEOPOLD
IPC: H04N7/01
Filed: 1961-08-31
Abstract: 972,499. Cathode-ray tube circuits. MARCONI CO. Ltd. May 21, 1962 [Aug. 31, 1961], No. 31317/61. Heading H4T, [Also in Division H1] In a storage tube circuit in which a modulated writing electron beam is scanned over a storage target T, the writing beam is intensity modulated in accordance with pulsed input signals and is also interrupted during each pulse, e.g. by relatively high frequency modulation, additional to the pulse modulation, and such that the writing beam is switched on only during the peaks of the high frequency signals occurring during the input pulses, whereby improved resolution is obtained, possibly due to reduced spread of charge in the target. As shown, the input pulses are applied together with high frequency signals comprising radio frequency signals from generator RFG to a modulator M coupled by loop IL to a tuned circuit PC connected in series between writing beam control grid WG and a source of bias potential. Alternatively, the radio frequency oscillation may be loosely inductively coupled to a parallel tuned circuit connected in series between cathode WC and the biasing arrangement therefor, the input pulses, e.g. radar echo pulses, being applied to control grid WG. A high value negative feedback resistance R3 is connected in series in the cathode circuit to linearize the writing gun characteristic. The tube shown includes a B.I.C. target and is used for scan-conversion, the writing beam being deflected in polar co-ordinate manner, and the reading beam in accordance with a television raster. The output signals may be derived from the target back-plate at amplifier VA<SP>2</SP> or from the secondary electron collector C and the corrector ring CR at amplifier VA<SP>1</SP>, but as shown, both these signals are applied to a difference amplifier DA to cancel out spurious " burst " signals due to a high-intensity writing beam.
Patent GB-285603-A (GB)
Title: Improvements in or relating to steam jet heaters and circulators
IPC: F04F5/46
Filed: 1926-12-10
Abstract: 285,603. Brooke, R. G., and Brooke, G. Dec. 10, 1926. Heating water.-In steam-jet water-heaters, steam from a single source at the same pressure is divided into three or more concentric streams introduced into the combining cone at points in its length such that each stream of smaller diameter extends beyond a stream of larger diameter. A construction comprises a combining cone 1 and concentric cones 3, 6, 7 projecting further the nearer the centre, all being supplied with steam from one source. Various modified means of mounting the cones are described. Several combining-cones may be mounted on a single steam chamber supplying the jets in parallel. Specification 5744/15, [Class 71, Injectors &c.], is referred to.
Patent GB-1110868-A (GB)
Title: Elastic segmented polymers
IPC: C08G18/10
Filed: 1966-07-13
Abstract: Segmented polyurethanes having recurring units of the formula <FORM:1110868/C3/1> wherein G is the radical which remains after removal of terminal hydroxyl groups from a hydroxy-terminated polymer melting below 60 DEG  C. and having a M.W. greater than 600, R1 is an organic radical of at least one carbon atom, R is an organic radical at least 90 mol per cent of which is a 4,41-alkylidenedicyclohexyl radical in which the alkylidene linkage is of the formula <FORM:1110868/C3/2> wherein R11 is selected from H and Ch3, m is zero or an integer from 1 to 8 and n and q are integers from 1 to 8, are prepared by reacting a polymeric diol HO-G-OH which may first have been reacted with a less than stoichiometric amount of a diisocyanate OCN-R1-NCO with a 4,41-alkylidenedicyclohexyl diisocyanate to form an isocyanate-terminated polymer that is chain extended with 4,41-alkylidenedicyclohexyl diamine or a mixture thereof with up to 10 mole per cent of an organic diamine, hydrazine or organic glycol. The polymeric glycols are suitably polyethers, polyesters, copolyether esters, polyacetals, polysiloxanes and N alkylated polyurethanes and the diisocyanate OCN-R1-NCO may be a conventional aliphatic or aromatic diisocyanate.  It is preferred to react the isocyanate terminated polymer with the chain extender in a solvent such as N,N-dimethylformamide or N,N-dimethylacetamide and the resulting polymer may be spun into filaments.  Suitably, the 4,41-alkylidene-dicyclohexyl diamines and diisocyanates used contain less than 70% of the trans-trans isomer, and radicals R11 are preferably both H or both CH3.
Patent GB-427871-A (GB)
Title: Improvements in and connected with photographic negative registering frames
IPC: G03B27/06
Filed: 1934-04-16
Abstract: 427,871. Photographic contact - printing apparatus. COOPER, E. E., and TROEDEL, A. T., 86, Bay Street, Melbourne, Australia. April 16, 1934, No. 31423. Divided out of 420,354. [Class 98 (ii)] Means for registering a photographic negative, especially for use in conjunction with the printing - apparatus described in Specification 420,354, comprises a frame provided on all sides with roller - tippec registering screws, the screws on two adjacent sides being seated on buffer springs. In the form shown the negative in a frame 41 is inserted in a chase 20 and the chase is placed in the registering frame 36 so that the adjusting screws 39, 40 bear on the negative frame 41 by rollers 42. The screws 40 are on two adjacent sides of the frame 36 opposite the screws 39 and are provided with buffer springs. After registration the negative is locked in the chase by keys 38 and transferred to the printing position. The frame 41 may be provided with gaskets to assist in producing vacuum contact with the sensitive material.
Patent GB-897822-A (GB)
Title: Coupling for overlapped threaded rods
IPC: F16B7/18
Filed: 1960-09-13
Abstract: 897,822. Rod couplings. WILLIAMS, C. I. Sept. 13, 1960 [May 16, 1960], No. 31471/60. Class 99(1). A coupling for overlapping screw threaded rods comprises a ring member 14, Fig. 2, surrounding the rods 11, 12 and a locking member 15. The coupling may be screw threaded internally. In another embodiment a locking wedge 21, Fig. 3, forces the screw threads on rods into engagement with the internal screw threads of the coupling.
Patent GB-1190593-A (GB)
Title: Composite Container and Method of Handling Fluent Materials.
Inventor: COLEMAN CLARENCE BAYER
IPC: B65D88/62
Filed: 1967-07-10
Abstract: 1,190,593. Portable containers; filling and emptying containers; flexible containers. C. B. COLEMAN. 10 July, 1967 [5 Dec., 1966], No. 31650/67. Headings B8D and B8S. [Also in Division F1 A container for non-gaseous fluent materials includes a flexible lining and at least two connections for inflating the lining prior to filling while permitting escape of air from the lining. A further connection or opening permits escape of air from between the lining and outer wall. The connections may include an inlet tube perforated along its length within the container. In one form, Figs. 1, 3, the neck of the lining 28 is secured about a perforated tube 24 at the lower end of which is a lining positioning plate 25. The tube is secured to a head plate 20 which accommodates a valve 38 for relieving or permitting entry of air between the lining and container 15 and a pressure relief valve 39. A head at the upper end of the tube 24 houses a dip tube 33, a closable connection 32, a pressure relief valve 36 and a valved connection 37. To distend the lining, air or gas is forced in via the valve 37 and tube 24 or alternatively through the tube 33. The material being packaged is then passed in through the tube 33. Displaced air or gas exits through the tube 24 and valve 37. To discharge the material, the space between the lining and container may be pressurized, forcing material out through the tube 33. In another method, the space is merely connected to air via the valve 38 and the contents pumped out through the dip tube. Flowable solid material can be fluidized by a tube, Fig. 4 (not shown) passed through the connection 32 with its gas discharge exit angled to direct the flow out of one of the bottom openings 27 of the tube 24. A discharge pump can be mounted within the container at the bottom of the dip tube. The connection 32 permits a stirrer, heater, cooler &c. to be lowered into the contents. The contents can be withdrawn and returned to the container after treatment by a circulator and appropriate connections, Fig. 5 (not shown). In another form, Fig. 8 (not shown), a screwin plug for the container has the liner mouth secured to its inner end and houses only a dip tube with a plate similar to the plate 25 and a single aperture at its lower end. It has also a through bore serving the purposes ofthe tube 24. Another embodiment, Figs. 12, 15, includes a bottom discharge door 317a and a lining with a bottom opening. A cap 320 having the necessary connections 359, 360 may be replaced after filling by a plain closure, Fig. 14 (not shown). In a further embodiment, Figs. 11, 17 (not shown), the container is filled and discharged from a position adjacent the bottom and a flexible tube extending up to the top of the space within the lining permits gas entry and exit.
Patent GB-987104-A (GB)
Title: Improvements in percussion tools
IPC: E21B7/02
Filed: 1961-09-04
Abstract: 987,104. Percussive drills. ATLAS COTCO A.B. Sept. 4, 1961 [Sept. 9, 1960], No 31670/61. Heading B4C. An I.C. engine operated tool is connected to pressure fluid consuming means actuated by fluid compressed by the tool. The tool 10, which is generally in accordance with Specification 739,453, has a twist mechanism, and a power piston 14 which pumps air from a compresser chamber 42 to a chamber 53 to effect the return strokes of a hammer piston 28. A plug 62 having a passage 58 for flushing air has a passage 64 connected by a conduit 66 to a manually operable valve 90 controlling supply: the consuming means which is to feed cylinders 78 mounted on a trolley 70 and housing pistons 82 which support the tool. The plug may be replaced by one the passage 58 where the tool is a rail spike driver, or may be replaced by one without the passage 64 when the tool is removed from the feeding means for use as a hand tool. The feeding means may be double or single acting, and may be arranged to cut-off the flushing-fluid when actuated. In a modification , the hammer piston may be raised by the gases of combustion gas. In a flirther modification (Fig. 9, not shown) the feeding means is a feed leg pivoted to the tool casing. The fluid may be oil.
Patent GB-335757-A (GB)
Title: Improvements in floats for fishing nets
IPC: A01K75/04
Filed: 1929-10-18
Abstract: 335,757. Phillips, J. W., and Hannen, G. J. Oct. 18, 1929. Net floats.-A float for trawl fishing nets comprises two hemispherical shells a, a of sheet metal which are welded together at c and further held together by a metal tube or rod c welded to the shells at d, e. The float may be made of a sea-water resisting metal such as stainless steel. Suitable connections j for attachment to the net may be welded to the float or the ends of the rod c may be bent into the form of eyes to which rings may be attached. If it is desired to enable air under pressure to be introduced into the sphere, a valve may be arranged in the tube c. The provisional Specification states that the float may be formed from two cones welded into a double-conical shape.
Patent GB-908748-A (GB)
Title: Improvements relating to blading of axial flow turbines
IPC: F01D5/14
Filed: 1960-09-15
Abstract: 908,748. Turbine rotor blades. MASCHINENFABRIK AUGSBURG-NURNBERG A.G. Sept. 15, 1960 [Sept. 16, 1959], No. 31868/60. Drawings to Specification. Class 110 (3). In an axial flow turbine, each rotor blade has a radially outer portion so twisted that the working fluid leaving this portion obeys the law of free vortex flow, namely C U .r = constant, and a radially inner portion formed by parallel generating lines so that the working fluid leaving this portion obeys, at least approximately the relationship C U .r <SP>cos2</SP>α<SP>1</SP> = constant, where C U  is the peripheral component of the absolute velocity of the working fluid, r is the radius from the turbine axis of the blade portion and α 1  the angle between the direction of blade velocity and the inlet flow direction of the working fluid. The stator blades are preferably twisted over the same radial extent as the rotor blades, but may be twisted over their full length.
Patent GB-467819-A (GB)
Title: Improvements in reciprocating engines
IPC: F01B17/04
Filed: 1935-11-19
Abstract: 467,819. Steam engines. DRYSDALE & CO., Ltd., and DRYSDALE, W. Nov. 19, 1935, No. 31993. [Classes 122 (ii) and 122 (iii)] An engine incorporates three cylinders 1, 2, 3, of the single-acting type disposed side-by-side, each piston being connected with an individual pin on the crank-shaft, the outer crank-pins being in line and the central crank-pin being relatively advanced by 180‹. The valve gear comprises, as described in Specification 327,265, [Class 122 (ii)], eccentrics 11, 12 on crank webs. The lower beat of a piston slide valve 15 controls the supply of steam to the cylinder 2, and the upper beat the supply to the cylinders 1, 3. The lower beat of a piston slide exhaust valve controls exhaust from the cylinders 1, 3, and the upper beat the exhaust from the cylinder 2.
Patent GB-663699-A (GB)
Title: Improvements relating to separable electrical connectors
IPC: H01R13/115
Filed: 1949-12-14
Abstract: 663,699. Two-part couplings. MINNEAPOLIS-HONEYWELL REGULATOR CO. Dec. 14, 1949 [Dec. 20, 1948], No. 32137/49. Class 38 (i). A releasable connector comprises a plug 13 having a prong 21 which is biased by a spring 39 within the sheath 30 of a cooperating socket 17 to provide a good wiping action and a secure grip between the plug and socket. Preferably, the prong is formed of an off-set blade and has an upturned tongue 49 to engage lockingly in an opening 51 in the sheath to hold the plug and socket in engagement. The cross-section of the connector parts is rectangular, the corners 34, 36 of the prong being sharp, whereas those of the sheath are rounded at 37, 38. The bowed spring 39 is retained in the sheath by the spring ends 41, 46 engaging the sheath ends, the end 40 moving away from the sheath when the spring is flexed, Fig. 3 (not shown). In a modification, Fig. 7, the sheath has a recess 66 which enters an opening 61 in the prong. In other modifications, Figs. 11, 12 (not shown), the connecting lug 19 of the plug is replaced by sleeves which are crimped on to cables.