baber/WOPTO huggingface dataset:
Patent GB-1352380-A (GB)
Title: Quinone derivatives
IPC: C07C51/377
Filed: 1971-04-19
Abstract: 1352380 2 - Methyl - 3 - (3 - carboxypropyl)- 1,4-benzoquinones TAKEDA YAKUHIN KOGYO KK 19 April 1971 [17 March 1970 18 March 1970 30 July 1970] 24176/71 Heading C2C Novel 2 - methyl - 3 - (3 - carboxypropyl)- 1,4-benzoquinones of the general formula wherein each X is a methyl group or both Xs together form a -CH = CH-CH = CH- group, one of A and A<SP>1</SP> is a hydrogen atom and the other is a C 1-4  alkyl group and R is a hydrogen atom or an alkyl, alkenyl or cycloalkyl group, and when R is a hydrogen atom, pharmaceutically acceptable base addition salts thereof are prepared (a) by reaction of a 2-methyl-1,4- benzoquinone of the general formula with a peroxide of the general formula (b) when R is a hydrogen atom, by reaction of a m-phenol and succinic acid anhydride of the respective general formulae wherein R 1  is a hydrogen atom or a C 1-4  alkyl group and R 2  is a C 1-4  alkyl group corresponding to the C 1-4  alkyl group represented by A or A<SP>1</SP>, followed by reduction of the resulting 3-(2- hydroxy - 6 - methylbenzoyl) - propionic acid of the general formula and oxidation of the resulting 4-(2-hydroxy-6- methyl-phenyl)-butyric acid (the reduction and oxidation steps may also be effected in the reverse order); (c) when R is a hydrogen atom, by hydrolysis of the corresponding compound wherein R is other than a hydrogen atom; and (d) when R is other than a hydrogen atom, by esterification of the corresponding compound wherein R is a hydrogen atom; followed optionally, when R is a hydrogen atom, by salification of the product. Peroxides of the third general formula above are prepared by reaction of compounds of formulae ROOC-CHA<SP>1</SP>-CA=CH 2  and CN-CH 2 -COOR<SP>1</SP>, wherein R<SP>1</SP> is a lower alkyl group, hydrolysis of the resulting nitrile of the general formula halogenation of the resulting glutaric acid of the general formula and treatment of the resulting acid halide of the general formula wherein Y is a halogen atom, with an alkali metal peroxide. Pharmaceutical compositions having Vitamin E, Vitamin K and anti-inflammatory activity comprise, as active ingredient, a 2-methyl-3-(3- carboxypropyl)-1,4-benzoquinone of the first general formula above or, when R is a hydrogen atom, a pharmaceutically acceptable base addition salt thereof, together with a pharmaceutically acceptable carrier and/or diluent.
Patent GB-690689-A (GB)
Title: Improvements relating to pressure exchangers
IPC: F04F13/00
Filed: 1949-09-20
Abstract: 690,689. Turbines. JENDRASSIK, G. Sept. 11, 1950 [Sept, 20, 1949], No. 24199/49. Drawings to Specification. Class 110(iii) [Also in Group XXVIII] In a rotary pressure, exchanger, (see Group XXVIII), the transfer gas passes through turbine blading so that a portion of the energy of such gas is extracted in the form of mechanical work which may be used for driving the pressure exchanger or. for external use.
Patent GB-698590-A (GB)
Title: Improvements in or relating to the contacting of subdivided solid particles with fluid reactant streams
IPC: B01J8/28
Filed: 1951-10-17
Abstract: <PICT:0698590/III/1> In a process for contacting a mass of subdivided solids with fluid reactant streams especially catalytic cracking of hydrocarbons wherein combustible contaminants are deposited on the solid particles during their passage through the reaction zone and contaminated particles are continuously fed to the top of a bed descending in a separate combustion zone where the contaminants are burnt with an oxidizing gas and the particles recycled to the reaction zone, the process is characterized in that the oxidizing gas is divided into two portions which are fed to the combustion zone, one being fed to a point above the level of the bed therein and passing downwardly in co-current with the particles to effect partial combustion of the contaminants, the other being fed to the lower portion of the combustion zone and passing upwardly therethrough to complete the combustion, the combustion products from both streams being withdrawn from a point intermediate the oxidizing gas inlets. In the embodiment shown, the combustion zone 3 in a hydrocarbon cracking plant is surmounted by a reaction zone 2.  Regenerating gas such as oxygen or air from pipe 21 is split into two streams 22 and 23, passing into the top and bottom respectively of zone 3.  The combustion products are withdrawn at 27.  The regenerated solid passes down pipe 8 to be entrained and lifted by a stream of reactant hydrocarbon gas or vaporized liquid entering at 5.  The gas and entrained solid pass up the central shaft 7 and are discharged from flared mouth 29 to form a compact bed in reaction zone 2. The cracking is completed in zone 2 and the products are withdrawn at 12. Spent solid catalyst passes through a constricted annular stripping section 4.  Steam at a higher pressure than that in zone 2 or 3 is injected at 16 into the annular channel 19 and passes upwardly to be evacuated with the cracked products at 12.  The catalyst employed may be silica with alumina, zirconia or magnesia in 2 to 5 mm. grains, preferably uniform.  In an example, hydrocarbons preheated to 315-345 DEG C by heat-exchange with product gases, is introduced at 0.95 to 1 atmosphere pressure and attains a temperature of 565 to 620 DEG C on contact with the hot regenerated catalyst, the ratio of catalyst to raw oil charge may be 12 or 13 to 1 by weight or 3 or 4 to 1 by weight of combined raw charge and recirculated oil.  The regenerated catalyst may contain 0.5 per cent by weight of carbon deposit and is so circulated that about 1 per cent of carbon is deposited thereon.
Patent GB-811283-A (GB)
Title: A chair iron structure for a tilting chair
IPC: A47C3/026
Filed: 1957-07-31
Abstract: 811,283. Resilient mountings. BASSICK, C. July 31, 1957 [Aug. 16, 1956]. No. 24260/57 Class 52(1) In a tiltable office chair with a torsion bar arranged transversely under the seat the bar 24, preferably square, is non- rotatably held at one end in the pedestal bracket 23 and pivotally mounted at the other end. The seat attachment plates 25 are pivoted on the ends of the bar and a lever arm 27 non-rotatably mounted on the torsion bar at its pivoted end contacts the underside of the seat through an adjusting screw 28. The pedestal bracket 23 is formed with limit stops 49, 50 and the torsion bar is preferably detachably mounted by means of circular spring clips; the pivot bearings are also preferably of identical construction for interchangeability.
Patent GB-1281494-A (GB)
Title: Improvements in polyamide production
IPC: C08G69/02
Filed: 1971-04-19
Abstract: 1281494 Polyamides CELANESE CORP 19 April 1971 [17 March 1970] 24284/71 Heading C3R The adipic acid salt of 1,4-diaminocyclohexane is present during the polycondensation of other polyamide-forming monomers by a process wherein at some stage water is removed by volatilization under reduced pressure. Such salt is present in only a small quantity which is sufficient only to have an advantageous effect on the relative viscosity of the polyamide without affecting its essential chemical nature. Specified amounts are 0À01 to 3, preferably 0À3 to 0À8 wt. per cent. The process may be a continuous process in a long narrow tube according to U.S. Patent 3,193,535. In examples nylon 66 salt is polymerized and water removed at 650 mm. Hg. with and without 0À5 wt. per cent salt added to polymer of R.V. 46À4 and 50À3 (2 g. in 21À8 g. 90% formic acid at 25 C.) respectively; a 50À3 R.V. polymer is also obtained with salt addition using a pressure of 550 mm. for water removal. It is stated that about 80% of the salt becomes copolymerized in the polymer.
Patent GB-690098-A (GB)
Title: Improvements in or relating to machines for treating curved stereotype printing plates
IPC: B41D5/00
Filed: 1949-09-22
Abstract: 690,098. Printing-surfaces. LINOTYPE & MACHINERY, Ltd., and BOYER, A. Dec. 21, 1950 [Sept, 22, 1949], No. 24356/49. Class 100(ii) A machine for treating curved stereotype printing plates, wherein a receiving table 2 communicates with a runway 2a along which the plates are moved by plate traverser mechanism 4 into a shaving arch for machining the surface of a plate, is characterized in that the receiving table 2 is provided with plate-engaging stops 13 which are movable into a plate-engaging position to prevent a plate being pushed on to the runway 2a when the traverser mechanism is in a predetermined region near the receiving table, the stops 13 being movable out of plate-engaging position when the tranverser mechanism 4 travels towards the shaving arch. When the traverser bar 4 is in the position shown the stop 13 is in an inoperative position and a plate may be pushed by the operator on to the runway 2a in the direction of the arrow P. As the bar 4 moves to the right it causes the stop 13 to be raised into an operative position by linkage 28, 25, 23, 19, 14, 7, 8, and 9 thereby preventing a further plate being pushed on to the runway. A finger (not shown) provided on the left hand end of the bar 4 engages the right hand end of the plats and pushes it to the left to the shaving mechanism (not shown). Similar mechanism is provided at the other side of the machine. plate-engaging stops 13 which are movable into a plate-engaging position to prevent a plate being pushed on to the runway 2a when the traverser mechanism is in a predetermined region near the receiving table, the stops 13 being movable out of plate-engaging position when the tranverser mechanism 4 travels towards the shaving arch. When the traverser bar 4 is in the position shown the stop 13 is in an inoperative position and a plate may be pushed by the operator on to the runway 2a in the direction of the arrow P. As the bar 4 moves to the right it causes the stop 13 to be raised into an operative position by linkage 28, 25, 23, 19, 14, 7, 8, and 9 thereby preventing a further plate being pushed on to the runway. A finger (not shown) provided on the left hand end of the bar 4 engages the right hand end of the plats and pushes it to the left to the shaving mechanism (not shown). Similar mechanism is provided at the other side of the machine.
Patent GB-480795-A (GB)
Title: Improvements in or relating to mechanism for imparting intermittent rotary motion
IPC: F16H35/02
Filed: 1936-09-07
Abstract: 480,795. Gearing for conveying rotary motion. GILLIARD, R. E., and THRISSELL ENGINEERING CO., Ltd. Sept. 7, 1936, No. 24372. [Class 80(1)] Consists in mechanism for converting continuous rotation into intermittent rotary motion. A pair of coaxial discs, of which 7 is shown, are mounted parallel to one another on stubshafts of which 26 is shown and are provided with teeth 11 engaging teeth on a driven member 12. Slots 9 in each disc are arranged parallel to one another and are adapted to be engaged by a connecting element in the form of a roller 23 to which are pivoted links 17, 18 connected to pins 19, 20 on a driving member 13 and an intermediate member 15 respectively, these members being connected by an idler 16. The roller 23 describes a lemniscatic curve 24 the crossing point of which is at the rims of the discs 6, 7 where the roller enters and leaves the slots 9. Whilst the smaller loop of the curve is being described by the rollers, the driven member is at rest, and whilst the larger part is being described the driven member is rotated with a gradual accelerating movement, a substantially uniform movement and a gradual retarding movement. The driven member is held during its period of rest by a roller 27 entering an aperture 32 in one or both of the discs, the roller being carried by a lever 28 actuated by a cam 30 rotating with the member 15. In a modification, Fig. 4, the intermediate member comprises a cam 33 actuating a follower 34 on a sliding link 35 which replaces the link 17 in Fig. 1. The locking roller 27 is actuated by a cam moving with the driving member 13.
Patent GB-680012-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J19/42
Filed: 1949-09-23
Abstract: 680,012. Discharge apparatus. PHILIPS ELECTRICAL, Ltd. Sept. 23, 1949 [Sept. 28, 1948], No. 24478/49. Class 39(i) A high vacuum discharge tube having an electrode system comprising at least a cathode requiring a low heating energy (less than 0.3 watts) and containing barium oxide and an anode is characterised in that in the tube one or more alkali metals are present in a free state. In the valve shown in Fig. 3 two tubes 5 containing barium and magnesium and a tube 6 containing a caesium compound are provided on a support; on heating the caesium volatilizes first and then the barium and magnesium volatilize at a higher temperature. The caesium remains in the tube in the form of a vapour so that a monatomic film of caesium is maintained on the surfaces of the cold electrodes without a caesium mirror being formed on the wall, and the supply of caesium may be so small that the tension of caesium vapour in the tube is less than the tension of saturated vapours. The cathode may be directly heated, and the provision of the alkali metal prevents the work function of the grid or anode varying and thus altering the valve characteristics which would occur if the electrodes were coated with barium and the cathode was not capable of maintaining the barium film on the electrodes.
Patent GB-321993-A (GB)
Title: Improvements in and connected with extensible props or shoring and strutting supports such as pit-props
IPC: E21D15/28
Filed: 1928-08-25
Abstract: 321,993. Rogers, J. N. O., and Naylor, T. W. Aug. 25. 1928. Mine props. - One member b of a telescopic prop is provided with a wedge surface b<1> to co-operate with a pin or roller g adapted to move against an incline on a socket c fixed on the other member a to provide a live contact for wedging the members in adjusted position. The members may be of I, rail-bar, or channel section, or the lower member mav be tubular and the upper member part-tubular in section. A bail e may be provided to support the ends of the pin g in slots f or guides, and is pivoted to the socket c so that by raising the bail the pin is slid in the inclined slots and the prop is collapsed. The socketmember c may be open or closed and in the latter case the inclined slot may be formed so that the pin runs on the inclined closing side c<1> of the socket, Fig. 9. A spring may be used to hold the bail against an adjustable stop so that the pin is in locking position and a cam lever, pivoted to the socket, may be used to release the bail. The pin may be provided with a tail portion by which it can be knocked upwards for release. The cross-pin may be replaced by a wedge q which does not fill the inclined recess formed in the socket but provides for gripping along a line at its lower end only, Fig. 15.
Patent GB-501925-A (GB)
Title: Improvements in or relating to jars or like containers
IPC: B65D81/32
Filed: 1937-09-08
Abstract: 501,925. Containers for cosmetics &c. FARRER, J. O. Sept. 8, 1937, No. 24525. [Class 66] A container for cosmetics &c. comprises a cylindrical inner part 5, formed from a single piece of aluminium &c. spaced within a body part 1 which may be formed from sheet metal, moulded plastic, or other suitable material, the space between the parts being either left empty or filled with insulating material. The top edge of the part 5 is seamed at 7a to a collar 7 from the lower edge of which a shoulder 8 projects outwardly, the shoulder either leading to a flange 9 adapted to engage externally the rim of the body part or being formed integral therewith. The collar co-operates with a threaded or other closure 10 provided with a packing 10a engaged by the seam 7a. The body part 1 may be of oval, rectangular, polygonal, or other sectional form.
Patent GB-239385-A (GB)
Title: Improvements relating to traction engines and other tractors
IPC: B62D49/08
Filed: 1924-10-17
Abstract: 239,385. Roger, G. Oct. 17, 1924. Couplings for tractors.-One side h of a draw bar is connected at e to a bracket b depending from the rear axle a of the tractor. An arm b <1> is connected by a rod c to the engine casing and thus to the front axle. The front of the tractor is thus prevented from rising when the resistance of the trailer is escessive. The parts are duplicated on the other side of the tractor.
Patent GB-755177-A (GB)
Title: Process and apparatus for the manufacture of seamless bottle-shaped hollow bodies, particularly from thermoplastic or phenoplastic material
IPC: B29C49/06
Filed: 1954-08-24
Abstract: 755,177. Making hollow plastic articles. CHEMICA AKT.-GES. Aug. 24, 1954 [Aug. 24, 1953], No. 24657/54. Class 87 (2) A preform is injection-moulded in a mould that contains a retractable hollow shaft, and then the shaft is retracted to allow the preform to be blown, in the same mould into the shape of a bottle. Fig. 1 shows apparatus in which a preform 13 (shown heavily shaded) is made by injection through a passage 4 into a space defined by mould parts 1, 2, a hollow shaft 5a and a central blowing tube 8. After injection a valve 11 on the tube is opened to admit compressed air from bore 9 into the interior of the preform to expand it, the shaft 5a being raised against the pressure of a spring 6 until it reaches an abutment 12. Fig. 2 shows a modification in which the shaft 5a is replaced by a shaft 5h that is spaced from the mould walls and is raised and lowered by a crosshead 7 and rods 7<1>.
Patent GB-166275-A (GB)
Title: Improved absorbents for gases
IPC: A62D7/00
Filed: 1919-10-09
Abstract: Gases, solid absorbents for, for use in respirators Quicklime is slaked with a solution (preferably hot) of potassium or sodium permanganate, and the paste thus formed is pressed, dried and broken up into granular form.  The absorbent is effective against chlorine, sulphur dioxide and trioxide, phosgene, sulphuretted hydrogen, arsenuretted hydrogen, prussic acid, cyanogen, and lachrymatory gases such a xylyl bromide.
Patent GB-462309-A (GB)
Title: Greenhouse ventilator
IPC: A01G9/24
Filed: 1935-09-05
Abstract: 462,309. Ventilators. BENSON, W. J. Sept. 5, 1935, No. 24730. [Class 137] The top rail or sash a of a greenhouse ventilator is so formed that it will hook over the ridge piece d of the roof, the rail being secured by a hinge b to the ridge piece at the side opposite tc that in which the ventilator opening is provided. A sheet lead strip c covers the joint in the ridge piece.
Patent GB-665569-A (GB)
Title: An improved thermally operable electric switch
Inventor: TAYLOR HAROLD CHARLES
IPC: H01H37/54
Filed: 1949-09-28
Abstract: 665,569. Thermal switches. LUCAS, Ltd., J. July 20, 1950. [Sept. 28, 1949] No. 24836/49. Class 38 (v). [Also in Group XIII] A thermally operated switch for interrupting a circuit in the event of excessive current flowing in the circuit, comprises a bimetallic element c having a pair of slots f, a straining piece h to bow or strain the part g between the slots, a support b for one end of the element and a contact d at the free end of the element co-operating with a fixed contact e. The piece h is a metal strip which at its ends i is bent to form a pair of abutments engaging the central part g of the element and at its sides has a pair of lugs j which engage the underside of the part g. Thus the straining piece h bows the central part g and so stresses the bimetallic element c that when the current flowing in the element reaches a predetermined amount, the element moves with a snap-action to open the contacts d, e. A second fixed contact may be provided so that the switch may function as a changeover switch. Instead of the lugs j a screw may be associated with the straining piece h to bow the central part g.
Patent GB-271807-A (GB)
Title: Cable for transmitting a wide frequency band free from disturbances
IPC: H01B11/00
Filed: 1926-10-06
Abstract: 271,807. Felten & Guilleaume Carlswerk Akt.-Ges. May 31, 1926, [Convention date]. Cables with artificially modified capacity. - A telephone .cable for transmitting a wide frequency band, particularly for use in connection with the broadcasting of music, comprises a number of pairs of .conductors, each pair surrounded by a lead covering, and the pairs of conductors thus enclosed in a lead covering stranded together and enclosed in a common armouring. In the construction shown, each of the copper conductors a is surrounded by a paper wrapping b which is preferably made thicker than usual to keep the capacity of the cores low. The pairs of conductors a are then covered with a paper braiding c and a lead sheath d. The separate pairs are tnen stranded together with jute braids e and are covered with a band f of woven material, a layer g of jute, and armouring wires h.
Patent GB-627707-A (GB)
Title: Improvements in or relating to distillation apparatus
IPC: B01D1/28
Filed: 1946-08-21
Abstract: <PICT:0627707/III/1> In a distillation apparatus of the vapour compression type in which the condenser is disposed as heat exchanger within the vaporization chamber, the heat generated in the compressor is transferred through its peripheral wall to the vaporization chamber.  Preferably the compressor is housed within the vaporization chamber.  A manually-operated apparatus for distilling seawater, Fig. 1, comprises a compressor 15 with inlet valves 17 and outlet valves 18 and a double acting piston 16 operated by rocking lever 21.  The compressor is heated within the still 24, and is surrounded by the heat exchange coil condenser 25 which is fed with vapour from the compressor through outlet valves 18.  Extra heat may be supplied by burner 31, the combustion gases passing through flues 35, 36 and 39. Seawater is supplied to tank 40 from which it is fed into the still through valve 43 and line 42 and through the annular space between two of the three concentric tubes 44a, 44b and 44c disposed as a heat-exchange coil.  Distillate from the coil condenser 25 passes through the annular space between tubes 44b and 44c into a storage tank.  Residual seawater from the still passes through the inner tube 44a of the concentric tube coil through tank 60.  Various air lines are provided to equalize pressures and to allow the movement of liquid when desired.  The burner may be adjusted by appropriate means 57.  The piston 16 may be of bronze and the cylinder lining of the compressor may be of a plastic resin composition such as of a phenol-aldehyde or melamine resin.
Patent GB-502110-A (GB)
Title: Process for producing stabilized motor fuels
IPC: C10L1/183
Filed: 1937-09-14
Abstract: 502,110. Motor fuels. MOND, A. L. (Universal Oil Products Co.) Sept. 14, 1937, No. 25013. [Class 91] Relates to the production of stabilized motor fuel distillates from cracked distillates, e.g. from primary tars such as those produced in the distillation of coals, woods, lignites, oil shales, &c. by blending with phenolic substances, and comprises separating crude phenolic substances from such cracked distillates, preparing more highly effective phenolic inhibitor material therefrom and re-adding the more highly effective inhibitor material to the distillates. Thus, primary tars containing phenolic compounds are subjected to cracking treatment to produce low-boiling motor fuel fractions which are then treated with alkali to remove phenols, the phenols are separated by acidification and selected fractions of the phenols are returned to the fuel, preferably after refining, e.g. with sulphuric acid. Prior to treatment with alkali, the fuel fractions, may be treated with dilute acid to remove basic material which may be recovered and added to the re@med fuel in regulated amounts. Suitable phenolic fractions are obtained by redistillation, e.g. into 25‹ C. fractions, fractions boiling between 240 and 300‹ C., being preferred. A suitable amount comprises 0À01- 0À05 per cent. Examples are given of the treatment of crude motor fuels from cracked coal, wood and lignite tars.