baber/WOPTO huggingface dataset:
Patent GB-505729-A (GB)
Title: Improvements in a process for producing readily inflammable solid fuels and motor fuels
IPC: C10L5/00
Filed: 1938-06-09
Abstract: 505,729. Preparing fuel. GEWERKSCHAFT M. STINNES. June 9, 1938, No. 17214. Convention date, June 9, 1937. [Class 50] The melting point of solid coal extracts is raised and the ignition point lowered by treatment in oxygen or oxygen-containing gas, e.g. under pressure at temperatures between 100-200‹ C. In oxidizing at ordinary pressure by bringing together a stream of air or oxygencontaining gases and the powdered dry extracts, the temperature is desirably, gradually raised as from 80‹ C. up to 250‹ C. The oxidized extracts may be used in coal dust engines and in place of oil in oil firings. Specifications 293,808, [Class 32], and 460,383 are referred to.
Patent GB-776218-A (GB)
Title: Improvements in or relating to vacuum flasks
Inventor: LORD FRANCIS ERNEST
IPC: B65D43/10
Filed: 1955-06-15
Abstract: 776,218. Vacuum flasks; stoppers. THERMOS (1925), Ltd. June 15, 1955, No. 17253/55. Classes 66 and 125(3). A canister shoulder 3 for a vacuum flask or vacuum jar is of resilient plastic material e.g. polythene having a pouring lip 3d at its upper end and a threaded portion 3a at its lower end for engagement with the canister 2, the shoulder 3 being shaped at 3c so that it forms a liquid tight seal with the refill 1. A cup 5 and the shoulder 3 have interengaging means 3g, 5b. The stopper may be a conventional cork or it may be formed from two pieces of plastics material 4a, 4b, having a portion 4c, that may be sprung into position over the lip 3d. Alternatively the plastic stopper may be adapted to be sprung or threaded into the inner surface of the shoulder 3. The shoulder 3 may have one or more readily deformable internal flanges 3f to accommodate refills 1 of varying tolerances. Specifications 738,772, 764,771, 765,063 and 769,661 [Group XIII] are referred to.
Patent GB-1210181-A (GB)
Title: Improvements in or relating to electrical filter devices
Inventor: BARR JOHN DENZIL
IPC: G01B21/30
Filed: 1968-04-10
Abstract: 1,210,181. Measuring displacement electrically. RANK ORGANISATION Ltd. April 9, 1969 [April 10, 1968], No. 17260/68. Heading GiN. A profile testing system comprises a transducer T which is rotated around the profile W to be examined and a high pass filter system F, B which selects harmonics of the signal generated by the transducer, the harmonics selected depending on the true shape of the profile. If the true profile is circular, filter F passes only the D.C. component and the fundamental of the signal which is subtracted at B from the complete signal to yield only the harmonics. The output from B is fed to meters M and also to a plotter P, CR which plots the profile. A mean radius signal may also be fed to the plotter to trace the true shape. Suitable filters giving an impulse response which follows a predetermined low are described (see Division H3).
Patent GB-981273-A (GB)
Title: A method for preparing 5-keto fructose by fermentation
IPC: C12P19/02
Filed: 1961-05-11
Abstract: 5-Ketofructose (5-dehydrofructose) is prepared by culturing a micro-organism of the species Acetobacter roseus, Acetobacter oxydans or Acetobacter melanogenus, or the strain Acetobacter suboxydans ATCC 621 in a culture medium comprising fructose, mannitol or a material containing one or both of them at a temperature between 10 DEG  and 40 DEG  C. and at a pH of from 3 to 8, and separating the 5-ketofructose produced.  The concentration of fructose or mannitol in the culture medium is preferably 5-10% by weight, and the process is preferably conducted at 25-30 DEG  C. The resultant 5-ketofructose solution, after removal of solid materials, is decolorized with active carbon and de-ionized with an ion-exchange resin, whereupon the solution is concentrated and precipitated 5-ketofructose is recrystallized from alcohol.
Patent GB-169508-A (GB)
Title: Improvements in or relating to splash-guards for vehicle-wheels
IPC: B62D25/18
Filed: 1920-06-25
Abstract: 169,508. Shave, G. J., and London General Omnibus Co., Ltd. June 25, 1920. Lateral-splash guards 14 of chain mail &c. are adapted to be displaced bodily along their supporting - members 17 against the action of springs 20 or other retaining-means. In a modification, springs are also provided in front of the guards. The life-guards 10, 11 are of the form described in Specification 169,507, [Class 103 (ii), Rail and road vehicles, Details applicable &c. to]. Specification 29587/09 also is referred to.
Patent GB-379782-A (GB)
Title: Improvements in blade construction for aircraft-sustaining rotors
IPC: B64C27/02
Filed: 1931-06-15
Abstract: 379,782. Propellers. LA CIERVA, J. DE, Bush House, Aldwych, London. June 15, 1931, No. 17302. [Class 114.] A solid blade construction designed for use with aircraft-sustaining rotors or lifting air screws comprises one or more longitudinal strength members 11 which is embedded in a hard wood core member 13 to which it is secured by transverse bolts with channel section nuts which are let into recesses in the core. The outline of the blade is completed by balsa wood laminations 17, 18, 19 which are arranged with the grain running in different directions and with the central lamination 18 let into the hard wood core 13. At the socket hard wood blocks 21, 22 are joined to the core member by three-ply webs 23, 24. The trailing edge of the blade is reinforced by a lamina of hard wood. The balsa wood laminae may be replaced by other light material such as expanded rubber.
Patent GB-173042-A (GB)
Abstract: 173,042. Haddan, A. J. H., (National Cash Register Co.). Sept. 16, 1920. C a s h registers; cash drawer or till mechanism. - In a machine having a totalizer adapted to be restored to zero for total printing, means, dependent on the restoration of the totalizer to zero, are provided for unlocking the cash drawer. The general arrangement of a key-set key-operated machine to which the invention is applied is described in Specification 142,436. Two turns of the total-printing handle result in one turn of the shaft 89, the drive being effected through the spring device described in Specification 173,194. The wheel 88 has fastened to it a plate 109 carrying a roller 110 normally lying in a notch in an arm 118 pivoted at 117 and pulled to the left by a spring 120. In a plate 113, also fastened to the gear 88, is a notch 114 adapted to be engaged by a leg 115 on a bail 112 pivoted at 116. A fixed pin 123 forms an abutment for the arm 118 and the tail 112 when in normal position. The tail is connected by a link 131 with an arm 133 pivoted loosely to a cross-shaft 134. A pin 137 on this arm works in a slot 136 in an arm 135 fixed to the shaft 134, which at the other end carries the drawer latch. Upon a complete turn of the shaft 89, the pin 110 engages the leg 111 on the bail, rocking the latter and lifting the leg 115 into the path of the shoulder of the notch 114 to stop the shaft. The rocking of the bail rocks the shaft 134 and releases the drawer, which is pushed open by a spring. The slot 136 enables the latch to be lifted when the drawer is pushed in without affecting the bail 112. The drawer latch may be released by an independent and manually-operated rod acting through a lever.
Patent GB-1100380-A (GB)
Title: Fluid pressure servomotor
IPC: F15B9/08
Filed: 1965-09-29
Abstract: 1,100,380. Fluid pressure brakes. BENDIX CORPORATION. 29 Sept., 1965 [30 Sept., 1964], No. 17311/67. Divided out of 1,100,379. Headings F2E and F2F. The description is identical with that of Specification 1,100,379, but the present claims are directed to the spring finger mechanism (128) associated with the groove (126) in the valveseat-carrying member (86).
Patent GB-366851-A (GB)
Title: Improvements in and relating to protective systems for dynamoelectric machines
IPC: H02H7/08
Filed: 1931-06-16
Abstract: 366,851. Protective cut-out arrangements ; control of motors. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London-(Assignees of Huston, C. B. ; 15, Hampton Avenue, Winne, H. A. ; 1394, Dean Street, and Umansky, L. A. ; 1212, Rugby Road, all in Schenectady, New York, U.S.A.) June 16, 1931, No. 17503. Convention date, June 16, 1930. [Classes 38 (iii) and 38 (v).] Safety arrangements.-In a shunt-wound D.C. motor the overload setting of the circuitbreaker is reduced when the motor is running at high speed with a reduced field, to suit the reduced commutating capacity of the motor in these conditions. As shown, the trip 9 of the circuit-breaker is operated on, differentially, by a coil 11 in the armature circuit and by a coil 12 in the resistance-controlled shunt excitation circuit so that, with reduced excitation, the series winding is more effective to trip the circuitbreaker.
Patent GB-700505-A (GB)
Title: Improvements in or relating to sealing discs for the closure members of bottles, jars and other containers
IPC: B65D53/04
Filed: 1950-07-13
Abstract: 700,505. Closure cap sealing discs. HYDE PLASTICS, Ltd., and HYDE, J. T. May 22, 1951 [July 13, 1950], No. 17524/50. Class 125 (3). A sealing disc 1, of polythene or similar plastic, for a closure cap 7 has a marginal portion 2 of less thickness than the centre portion 3 which seats on the rim of the container 8, the portion 2 engaging an internal shoulder or screw thread 6 to retainit in position in the cap. In a modification the disc has on its underside an annular rib and in a further modification, Fig. 8, it has an annular rib 22 with recess 23. The sealing surface of the rib may be of semicircular cross-section.
Patent GB-102618-A (GB)
Title: A Dynamo-electric Machine for the Conversion, or Simultaneous Production of Alternating Currents of Different Frequency.
IPC: H02K47/24
Filed: 1916-12-06
Abstract: 102,618. Bergmann - Elektricitats - Werke Akt.-Ges. Dec. 8, 1915, [Convention date]. Alternating-current induction machines; rotary converters; windings.- Relates to an alternating- current machine for use as a frequency converter or double current generator with fields having different numbers of poles and with independent armature windings or with a single special armature winding. The armature winding acted upon inductively by the field having the smaller number of poles has one or more groups of 2 bars in series and separated by a space corresponding to an even number of poles of the second field. If the second field has 2n + 1 times as many poles as the first, the armature winding acted upon inductively by this field will have one or more groups of 2n + 1 bars in series with a pitch corresponding to a single pole. The machine may be constructed as a synchronous or as an asynchronous machine for both frequencies, or as a synchronous machine for one frequency and as an asynchronous machine for the other. The asynchronous part may have a short-circuit winding or a phase-winding ; the short-circuit winding may act as a damping or starting winding for the synchronous part. In the construction of asynchronous winding shown in Figs. 3 and 4, sets of three bars 120 degrees apart are short-circuited, and connected to slip-rings; the field for this arrangement has six and two poles. The Specification as open to inspection under Sect. 91 (3) (a) refers to arrangements for use when one number of poles is an even multiple of the other. This subject-matter does not appear in the Specification as accepted.
Patent GB-498996-A (GB)
Title: Improvements in or relating to flue tubes for steam boilers
IPC: F22B7/20
Filed: 1938-06-14
Abstract: 498,996. Internal flues of steam boilers; pipe joints. BIJE, A. J. M. A. R. VAN DER D. DE. June 14, 1938, No. 17583. [Class 123 (ii)] [Also in Group XXVIII] The outwardly flanged ends 2 of the sections of a furnace flue are reduced ir thickness and are so weldec together that their outer edges contact along a re latively small depth. The connected flanges may be encircled bv a ring 5, made in two or more parts an( welded to the sides of the flanges.
Patent GB-1030607-A (GB)
Title: A machine with slide assembly
IPC: B21D51/26
Filed: 1963-05-03
Abstract: 1,030,607. Making can bodies; metal working presses. T. E. LAXO. May 3, 1963 [May 3, 1962], No. 17587/63. Headings B3A and B3H. [Also in Division F2] A machine, particularly for making can bodies, has a slide member 18, Fig. 1 (not shown), which is guided by opposed members 24 adjustable towards and away from each other and having V-shaped portions 30, Fig. 5 (not shown), co-operating through V-shaped roller raceways 38 with corresponding surfaces 28 on the slide member. Can body blanks are fed along rail 22 through a blanking station 12, notching and slitting station 14, and folding station 16. Slide members 18 carry the working tools and are actuated by connecting rods 19, Fig. 2 (not shown). Each guide member 24 is clamped to the machine frame 20 by screws 26 and is adjusted laterally by a pin 50 movable by a set-screw 60 and having an oblique face 54 co-operating with an edge 56 of the machine frame. The raceways 38 are retained in position by pins 40.
Patent GB-1460017-A (GB)
Title: Methods of erecting bulk liquid storage containers
IPC: E04H12/30
Filed: 1973-04-12
Abstract: 1460017 Method of erecting storage tanks K SEVERN and A HODGKINSON 16 April 1974 [12 April 1973] 17726/73 Heading E1T A method of erecting a liquid storage tower comprises the steps of erecting a column 10, attaching a set of shuttering panels 20, 31 at one level on the column and connecting the panels to the column at a higher level to form a mould and finally casting a layer of concrete 38 over the upper surface of the panels to form a container. The column is erected on a base 14 and made up from concrete rings 15 utilizing a ring scaffold supported from a crane, Fig. 2. The panels 20, 31 are of concrete and serve as last shuttering to receive a finishing layer of concrete applied by a gun. When serving as a mould the panels are supported by removable struts for details of which to-gether with joints, seals, service piping and cover the Specification and remaining drawings, (not shown), should be referred to.
Patent GB-697013-A (GB)
Title: Improvements in and relating to the de-alkylation of aromatic hydrocarbons
Inventor: CLOUGH HARRY
IPC: C07C4/18
Filed: 1950-07-17
Abstract: Alkylated monocyclic aromatic hydrocarbons are de-alkylated by treating a feed containing such hydrocarbons at 500-600 DEG , preferably 540-570 DEG  C., and above 100, preferably 200-300 ats. with hydrogen in the presence of a supported or unsupported catalyst consisting substantially of an aluminium phosphate. Toluene, xylenes, ethylbenzene and trimethylbenzenes are suitable initial materials, also mixtures derived from petroleum, coal, and coal tar as by distillation or extracts thereof.  Paraffins, naphthenes, olefins, and di-olefins may also be present. Fractions of cracked petrols boiling at 125-150 DEG  and 150-175 DEG  C., are specified. Dehydrogenation and cyclization may also occur.  Aluminium orthophosphate, alone or admixed or supported on alumina, silica or compounds thereof such as aluminium silicates is a suitable catalyst. Batch or continuous operation is possible.  In an example, xylenes are treated at different feed rates, the catalyst being prepared by precipitating with ammonia an aqueous solution of equimolar aluminium nitrate- and orthophosphoric acid, extruding, drying, and calcining. Increasing the feed rate lowers the yield of lower aromatic hydrocarbons.
Patent GB-738106-A (GB)
Title: Chain saw
Inventor: BROADBENT HARRY
IPC: B27B33/14
Filed: 1953-06-26
Abstract: 738,106. Chain saws. DRABBLE & SANDERSON, Ltd. June 24, 1954 [June 26, 1953], No. 17806/53. Class 145. The cutter links 12 of a chain saw have a cutting tooth 15 substantially rectangular in plan and cross-section, of a width greater than the overall width of the cutter and connecting links and of a thickness greater than the cutter link thickness. The tooth may be at either end of the link and may be integral with it or attached to it by brazing, in which latter case the tooth is grooved at 18 to fit over the link and may back against a projection 31. The cutting edge 17 may be normal or oblique to the saw axis, with straight or concave rake 16, and clearance is provided by forming the top surface of the tooth to slope downwardly or by tilting the head on its link and also by tapering the sides from front to rear. Single or double connecting links 32 or 10, 11, respectively, may be used. A central depth gauge 30 or 19 may be provided at the opposite end of a cutter link 12 from the cutter tooth or at any point along a central connecting link 12 and additional left- and right-hand gauges 20, 21 may be provided at either end of the double links 10 and 11, these depth gauges being employed in any desired combination or sequence. The cutting edges may be formed on inserts of high-speed steel or tungsten carbide. Sprocket-engaging extensions 22 may be provided on all links, to ride in a groove 23 of a guide bar 24, or only on outer links 10 and 11, to straddle a reduced edge on the guide bar.
Patent GB-1178412-A (GB)
Title: Improvements in or relating to Sewing Machines.
IPC: D05B71/00
Filed: 1967-04-19
Abstract: 1,178,412. Lubricating. UNION SPECIAL MACHINE CO. 19 April, 1967 [20 April, 1966], No. 17859/67. Heading F2A. [Also in Division D1] In a sewing machine a bearing 76, Fig. 3, is mounted in a wall 10 and is provided with at least one helical groove 218 which pumps lubricant from a lubricant-collecting felt washer 216 to a point to be lubricated. The sewing machine has a frame comprising a base 2, a vertical standard 4, an overhanging arm 6 and needle a head 8, the base 2 has chambers 12, 13 and 14 formed therein; has a shaft 26 which is supported by the bearing 76 and by bearings 78, 28 and 30; and has a reservoir 11 provided at the bottom of the chambers 12, 13 and interconnected by a passage 18 in a wall 16. The bearings 78, 28 and 30 are provided with at least one helical groove in their inner walls and are mounted in a support 80, the wall 16 and in the standard 4 respectively. An oil mist, produced by means of a member 84 which is attached to the shaft 26, conveys oil from the reservoir to some of the lubrication points. The bearings 78, 76, 28 and 30 are lubricated by the oil which is conveyed through the helical grooves. Other parts of the sewing machine requiring a metered amount of oil are lubricated by means of the bearing 76, oil from the helical groove 218, Fig. 27, being passed through a radial passage 222 into an axial bore 82 which is formed in a portion 74 of the shaft 26, and being centrifuged through radial bores in the shaft to roller bearing 106, Fig. 3, for example. The radial bores, such as 232, Fig. 9, may be provided with a porous metering plug 240. Surplus oil collected in a sump 336, Fig. 3, in the head 8 is returned to the reservoir 11, via a pipe 342 and the bearing 28, the helical grooves thereof serving as a pump. Wicks, such as 332 in the head 8, collect oil for return to the reservoir 11.
Patent GB-755842-A (GB)
Title: A process for the production of sugar from a substantially anhydrous mixture of sugar and non-sugar substances
IPC: C13B35/00
Filed: 1953-06-29
Abstract: In the production of sugar from anhydrous mixtures of sugar and non-sugar substances, especially from molasses, by the method involving stirring the mixture with concentrated acetic acid, the quantity of fresh 99-100 per cent acetic acid added is determined by the nature and concentration of the non-sugar substances and is at least 50 per cent of the weight of the mixture, sufficient mother liquor from a previous precipitation is added to render optimal the concentration of non-sugar substances relative to that of sugar and so cause precipitation of sugar, and the precipitate of sugar and of non-sugar substances remaining undissolved in acetic acid is filtered or centrifuged from the mother liquor and is washed with a liquid which dissolves the adhering acetic acid without reprecipitating the non-sugar substances therein dissolved and without dissolving the precipitated sugar.  The wash liquid may be a polar solvent such as methyl alcohol together with a non-polar solvent, e.g. methylene chloride or carbon tetrachloride, which reduces the sugar-dissolving tendency of the polar solvent while leaving unaffected its property of dissolving non-sugar substances and acetic acid; the polar solvent may first be used to remove mother liquor adhering to the precipitate, and the precipitate may then be washed with a mixture of the polar solvent and non-polar solvent; a portion of the polar solvent may be incorporated before the sugar and non-sugar substances undissolved in acetic acid are precipitated.  The initial mixture may preliminarily be atomizer-dried to a powder or roller-dried to coarse-grain or flake condition.  The process may include separation by distillation of the precipitating and washing liquids from each other and from exhausted residue, and re-employment of the liquids so separated.
Patent GB-582314-A (GB)
Title: Improvements in or relating to machines for cutting stone and like materials
IPC: B28D1/06
Filed: 1944-09-20
Abstract: 582,314. Sawing stone &c. BRAMLEY ENGINEERING CO., Ltd., FITTON, H. G. G., and ELLIOTT, G. Sept. 20, 1944, No. 17950. [Class 124] In a machine for sawing stone or the like comprising one or more blades mounted horizontally in a frame 4 which is swung by a connecting-rod pivoted thereto and driven by an eccentric in a stationary position, the frame being suspended from saddles 2 which are adjustable vertically on guides 3 by means of a feed gear 5, 6, 7 controlling the downward cutting action of the blades, the tendency of the connecting-rod to unbalance the equal swing of the frame is compensated by suspending the frame from the saddles 2 by means of pivotal links 10 and cranked parts 9 of rotatable radius shafts 8. The latter may be rotated manually, but preferably each is rotated automatically by means of a worm-wheel 14 and a worm 15 carried by a saddle 2 and slidable along a shaft 16 which is driven from a feed gear shaft 7 through the intermediary of a worm gear 18.
Patent GB-369817-A (GB)
Title: Improvements in sanitary systems
IPC: E03F7/10
Filed: 1931-10-08
Abstract: 369,817. Drainage systems. GODDARD, J. A., Hastings House, Norfolk Street, Strand, London. Oct. 8, 1931, No. 18145. [Class 33.] In a system for dealing with the discharge from a number of sanitary elements, a c o m - pletely - enclosed tank A, free from catch-pots, baffles, &c., is provided with inlet pipes N, an outlet B situated at the lowest part of the tank, and a single-bladed centrifugal pump C. The discharge-pipe J is provided with an intake D for the pump, the outlet F of which passes around the tank and joins the pipe J below a valve K, by means of which the pump may be byepassed. In order to remove obstruction by solid matter, a stream of water at high pressure may be introduced at B from a valved pipe L. The tank is ventilated at O, may be furnished with an automatic starting and stopping device for the pump, and may be flushed at intervals from a tank with which it may be integral. An automatic disinfecting arrangement may be incorporated with the flushing device. When the system is fitted on board ship and the tank A is disposed above the water line, the discharge pipe from the pump is arranged to extend upwards above the external water level and thence to slope downwards to the discharge orifice.