baber/WOPTO huggingface dataset:
Patent GB-211411-A (GB)
Title: Improvements in display stands
IPC: A47F5/11
Filed: 1923-07-18
Abstract: 211,411. King & Jarrett. Ltd., and Coker, A. W. July 18, 1923. Card stands; pedestal stands; rack stands.-A stand for carrying a plate or plates for displaying goods comprises crossed members a, b which may be of cardboard, each preferably slotted for interengagement as at a<1>, b<1>, and having overhanging lips &c. a<2>, b<2> for retaining a plate c. The slots b<1> in some of the members b may be inclined so as to tilt the supported plate in the direction of view. Weak parts of the structure, such as might be produced by a large opening a<3> or around the slots a', b<1>, may be strengthened by reinforcing strips. Advertising matter may be applied to the stand. When the plates, which are preferably of cardboard, are removed the stand can be dismantled for storage &c. Several forms of the device are shown, and the stand may be made to accommodate any desired num- 'ber of plates.
Patent GB-1455969-A (GB)
Title: Flexible disc recording devices
IPC: G11B19/22
Filed: 1975-05-05
Abstract: 1455969 Flexible disc record assemblies INTERNATIONAL BUSINESS MACHINES CORP 5 May 1975 [1 July 1974] 18674/75 Heading G5R A portion 270 of a rotating stack 230 of flexible record discs is deflected by a splitter blade 28 inserted between two selected mutually adjacent discs and is restrained by a member 200 at the deflected end of the stack, the splitter blade 28 and the restraining member 200 being mutually angularly separated relative to the axis of the stack.
Patent GB-403947-A (GB)
Title: Improvements in electric condensers
IPC: H01G5/06
Filed: 1932-07-02
Abstract: 403,947. Condensers. JARRETT, RAINSFORD, & LAUGHTON, Ltd., and LAUGHTON, G. A., Kent Street, Birmingham. July 2, 1932, No. 18720. [Class 38 (ii).] The spacing or carrier bars e for the fixed vanes f of a variable condenser, project from a single plate or spider a of insulating material in the central boss of which a self-locating bearing for the moving vane spindle is fitted. This bearing may comprise a metal bush g bedded in the spider a coacting with a coned surface k on the spindle j. On the other side of the spider the moving vane system is mounted on a bush o screwed on the end of the spindle and compressing, through an insulating bush s, a spring washer r fitting into a chambered recess c in the spider. The spring washer preferably is slit to form circumferential tongues pressed out of the plane of the washer. The fixed vanes are preferably spaced on the tie rods e by means of lugs w, Fig. 5, upturned at an angle and slotted so as to allow of the passage of the rods, the lugs where they are in contact with one another and with the rods being soldered in position.
Patent GB-749079-A (GB)
Title: Improvements in extruding machines for the continuous processing of fusible or thermoplastic plastics
IPC: B29C48/85
Filed: 1953-07-07
Abstract: 749,079. Extruding thermoplastic materials. BADISCHE ANILIN- & SODAFABRIK AKT.-GES. July 7, 1953 [July 12, 1952; Sept. 18, 1952], No. 18773/53. Class 87(2) In a machine for extruding thermoplastic materials, particularly linear polyamides, the material is conveyed in an unfused state through a first zone, having a screw A (length a) enclosed by a cylinder A<1> (of maximum internal diameter d) surrounded by means K whereby the material in cylinder A' may be cooled or heated to a point below its fusion point. The material then passes through a second zone where it is compressed, to the form of a tube, around a spindle B (length b) of conical or cylindrical shape; the diameter of spindle B in all planes perpendicular to its axis being less than, or equal to, that of the hub of screw A. The material is fused or plasticized either by heaters H, or by high frequency means when the cylinder and spindle form the plates of cylindrical condensers Z with the material is dielectrical. The heating is gradually varied over this zone to 10-30C. above the melting point of the material and this may be done, with the high frequency heating, by regulating the frequency or voltage of each condenser so as to give a uniform temperature gradient in the direction of extrusion. The spindle B has an end part C (length c) whicn may be threaded and is constructed so that the full annular cross-section between the mandrel and inner wall of the housing decreases continually or in stages in the direction of extrusion; various shapes are shown. The casing and shaft may be made in one or more parts. The apparatus is such that the ratio of b+c to a is ¢ and that of s to d is, or exceeds, b, where s is the total length of parts ABC.
Patent GB-374648-A (GB)
Title: Improvements in and relating to methods of operating cylindrical elongated explosionchambers, in particular for internal combustion turbines
IPC: F23C15/00
Filed: 1931-06-29
Abstract: 374,648. Generating combustion products under pressure. HOLZWARTH, H., 7, Goethestrasse, D³sseldorf, Germany. June 29, 1931, No. 18794. Convention date, June 30, 1930. [Class 51 (i).] Combustible mixture burnt in a closed chamber 1 passes to a turbine through nozzles 6 when an outlet valve 5 is opened. The air inlet valve 3 is opened before the fuel valve 2 and before the valve 5 is shut so that scavenging air enters the chamber and, by reason of the conical throat 4, forms a piston-like plug separating the outgoing products of combustion from the incoming combustible mixture which follows. The fuel valve is kept open later than the air inlet valve and both are shut before ignition takes place.
Patent GB-1064017-A (GB)
Title: Biodegradable detergent alkylate having improved detergent properties
IPC: C07C15/02
Filed: 1965-05-04
Abstract: The eventual detergency effectiveness of a biodegradable detergent alkylate comprising phenyl-n-alkanes having 10-14 carbons in the alkane portion, at least 15% by weight having at least 12, is increased by distilling to recover a lower boiling product fraction having an increased content of mid-chain (4-, 5-, 6- and 7-) phenyl alkanes and a higher boiling fraction comprising 2- and 3-phenyl alkanes having the same number of carbon atoms, isomerizing the higher boiling fraction and returning it to the distillation. Preferably benzene is alkylated with a chlorinated n-alkane fraction and the 2-and 3-phenyl alkane fraction is recycled to the alkylation. Detergent compositions are formulated from sodium alkylbenzene sulphonates prepared from the above alkylates having an increased content of mid-chain isomers.  In examples compositions comprise 25% sulphonate, 40% sodium tripolyphosphate, 1% carboxymethyl cellulose, 7% sodium silicate, 8% water and 19% sodium sulphate.
Patent GB-469210-A (GB)
Title: Improvements in the process of forming iron oxide
IPC: C01G49/06
Filed: 1936-07-07
Abstract: <PICT:0469210/III/1> Iron oxide is obtained by suspending and agitating fine iron grains in water and introducing oxygen to obtain an unstable ferro-ferric hydrate which is separated from residual unoxidized iron and from the liquid.  The unstable hydrate passes readily into ferric hydrate in the presence of oxygen.  Suspension of the iron grains, when the are too coarse to pass a 150 mesh screen, is facilitated by increasing the effective density of the water. Preferably fine sawdust, wood flour, paper pulp, or like fibrous or solid material is used in amount of 1 to 2 per cent of the water employed.  The fibrous product may then be mixed with chips or shavings and used for purifying gas.  Oxidation of the iron may be promoted by adding salts such as sodium chloride, ferric chloride, or ferrous sulphate, or acidic gases such as sulphur dioxide or carbon dioxide may be introduced with the oxidizing air.  In carrying out the process, iron ground in a mill 11 is carried by a fan 12 through air separator 14 into the oxidizing tank 15, and cold or heated air is supplied through a nozzle 19. The partly oxidized mixture is passed to a classifier 23 by pump 21, the unoxidized iron being returned to the oxidizing tank by pump 26, and the liquid carrying the hydrate in suspension overflowing to a settling tank 30.  The hydrate is withdrawn at 34 and the liquid returned by pump 31 either to the classifier 23 or to the oxidizing tank 15.  When the hydrate is to be used for purifying gas it should be dried at a temperature below 212 DEG  F.
Patent GB-795498-A (GB)
Title: Dewaxing of petroleum lubricating oils
IPC: C10G73/04
Filed: 1956-06-19
Abstract: Petroleum lubricating oils are dewaxed by adding thereto a dispersion or solution in a dewaxing solvent of the dewaxing aid claimed in Specification 758,421, mixing, and cooling the mixture until wax separates.  The dewaxing aid sepecified is a composition containing 55 per cent by weight of a Friedel Crafts condensation product of a chlorinated paraffin wax containing 12 per cent chlorine, and naphthalene, and 45 per cent of polymerized methacrylate esters of C10-C18 aliphatic alcohols. Solvents referred to are mixtures of aliphatic ketones and aromatic solvents such as methyl ethyl ketone/benzol, acetone/benzol, dibutyl ketone/benzol, aliphatic hydrocarbons such as propane, butane, naphtha, chlorinated solvents, sulphur dioxide and furfural/benzol.  The wax may be separated by filtration, centrifuging or decantation.
Patent GB-587417-A (GB)
Title: Improvements in or relating to the testing of electric insulation
IPC: G01R27/26
Filed: 1944-10-05
Abstract: 587,417. Impedance and power factor measurements. REYROLLE & CO., Ltd., A., HARLE, J. A., and MORGAN, R. I. Oct. 5, 1944, No. 19129. [Class 37] The power factor of an insulator is measured by balancing the voltage drop of the leakage current passing through the insulator and a resistance against the secondary e.m.f. of a mutual inductance, the primary of which is fed from a calibrated voltage transformer so compensated that the secondary voltage of the mutual inductance is in phase with the capacity component of the leakage current, the voltage produced by the loss component of the leakage current being compensated for by adjustable means calibrated in terms of the power factor. A variable resistance J is connected between the insulator C under test and earth. This resistance is adjusted until its voltage drop balances an e.m.f. in the secondary winding E<2> of a mutual inductance E having a primary winding E<1> supplied from the secondary winding A<2> of a calibrated voltage transformer A. The primary winding A<1> of the transformer A is connected between a conductor B, which is supported by the insulator C, and earth. The transformer A is so compensated that the voltage produced in the secondary winding E<2> of the mutual inductance is in phase with the capacity component of the leakage current in the resistance J, the voltage produced by the loss component of the leakage current being compensated for by adjusting a potentiometer G, calibrated in terms of the power factor, until the galvanometer H indicates zero. A variable resistance D is used to compensate for the phase error of the transformer A. In a modification the loss component is compensated for by a variable or fixed condenser connected between the earth point and a variable position of the resistance D<1>. In another modification the variable resistance J is calibrated in terms of the capacitance. In a further modification the capacity voltage across the resistance J and the voltage produced by the loss component of the leakage current are compensated for by automatic means which simultaneously records the power factor and the capacitance of the insulator and can, if the power factor falls below a desired value, isolate the conductor from the circuit. Specification 482,444 is referred to.
Patent GB-367286-A (GB)
Title: Improvements in or relating to radio direction and bearing finding systems suitable for use in connection with navigation
IPC: G01S1/02
Filed: 1931-07-02
Abstract: 367,286. Directive wireless signalling. TELEFUNKEN GES. FUR DRAHTLOSE TELEGRAPHIE, 12, Hallesches Ufer, and LUDENIA, W., 50, Babelsberger Strasse, Wilmersdorf, both in Berlin. July 2, 1931, No. 19150. Convention date, July 2, 1930. [Class 40 (v).] In a system of directive transmis-' sion similar to that described in Specifications 358,859 and 366,367 and in which a swinging directive beam is produced by the uniform relative movement of the focus of a reflector and a radiator associated with the latter, the radiator is rotated about the focus of the reflector. As described, a fixed reflector S has a radiator E associated with it and arranged to rotate round its focus at an audible frequency, small masking reflectors Z1' Z2 being provided to prevent radiation from reaching reflector E between the positions I and II. At the receiver a resonance system may be tuned to the rotation frequency of the radiator system, and in the case of audible reception a note is heard when the receiver deviates from the true bearing line.
Patent GB-354491-A (GB)
Title: Machine for winding and securing fins on metal tubes
IPC: B21C37/26
Filed: 1930-06-24
Abstract: 354,491. Making finned tubes. FAIRWEATHER, H. G. C., 65, Chancery Lane, London.-(Griscom-Russell Co. ; 285, Madison Avenue, New York, U.S.A.) June 24, 1930, No. 19284. [Classes 83 (ii) and 83 (iv).] Coiling; corrugating; drawing;drawing-dies; caulking.-In a machine for making finned tubes by grooving the tube helically, winding a metal strip edgewise in the groove and securing the strip by crimping the metal of the tube, the end of the tube 1 is secured to a bar 15 moved longitudinally by a chain 14 so as to draw the tube through the reel 13 and through the winding head 12<1> on the hollow rotary spindle 12 within which is a stationary tubular member 41 clamped against rotation by a nut 42 to the machine standard 7, the member 41 supporting at the forward end a taper sleeve member 37 coacting with taper chuck jaws 36 actuated by a tubular member 38 and handwheel 39 to grip the tube 1 frictionally for holding it against rotation but permitting its forward movement. Hollow spindle 12 is driven by a motor 28 through gearing 29, 30 and clutch 34 controlled by sliding member 35 and drives the reel 13 through gearing 16-20 and the chain 14 through worm gearing 21-25. The head 12<1> supports a grooving roll 46 for grooving the tube, a roll 47 for leading the strip 2 into the groove and a crimping roll 48. Rolls 46, 48 are mounted in a plate 49 and roll 47 in another plate 50, the plates 49, 50 being adjustable by screws 52, 53 in guides on blocks 55, 56 which are adapted for quick opening and closing to start the winding operation by providing springs tending to move the blocks apart and enclosing the blocks in a ring 61 with cams 59, 60 engaging cams 55<1>, 56<1> on the blocks. The strip is tensioned by a clamp screw provided in the guide block 66. The reel 13 is positively driven from gear 19 by ratchets 79 engaging a ratchet ring 78 secured to the spool sleeve 77 which runs loose on extension hub of gear 19, the ratchet drive permitting overrunning of the spool when necessary; sleeve 77 is braked to keep the strip taut by a nut 81 having a groove at the edge containing a ring of steel balls bearing against a steel ring 83 secured to end of sleeve 77, nut 81 being locked after adjustment by screws 84. The inside of the strip spool is gripped by wedges 70 coacting with wedges 71 seated in grooves in sleeve 77 and threaded at the ends to engage a nut 72. The tube end is attached to the draw-bar 15 by a split tapered collet 90 and coned sleeve 91, the end of the bar having a pilot 93 to support the inside of the tube. The chain member 89 has play between collars 87, 88 on rod 15 so that it can engage successive links of the chain and the rod is fitted with a sliding sleeve 96 for use as a hammer to strike the collet sleeve 91 for releasing the tube.
Patent GB-121792-A (GB)
Title: Improvements in Railway Sleepers.
Inventor: LOCKARD WILLIAM ALONZA
IPC: E01B3/18
Filed: 1917-12-31
Abstract: 121,792. Lockard, W. A. Dec. 31, 1917. Sleepers, metal, and securing rails to. -Metal sleepers are formed of troughshaped sections 2, 3 having inclines 18 formed on their under faces and have flanged meeting ends 13 secured together by bolts 12. Insulating material 15 may be placed between the meeting ends and the shanks, head, and nuts of the bolts may be insulated from the sleepers. The rails are secured in recesses in the upper edges of the troughs upon plates 5 preferably having turn-down ends. The left half of the figures shows the use of a single locking-wedge 7 with an upset portion and bearing against the rail. The right half of the figure shows the use of two such wedges as when employed at a rail joint. The wedges are secured by vertical wedges 9 and cottar pins 10.
Patent GB-931468-A (GB)
Title: Improvements in and relating to boxes for growing seeds or small plants
IPC: A01C1/02
Filed: 1961-05-29
Abstract: 931,468. Containers for growing plants. E. DUNHILL. May 11, 1962 [May 29, 1961], No. 19318/61. Class 6(2). A container for growing seeds or small plants has reflector means for directing radiation i.e. heat and light to the growing seedlings or plants. The container comprises a box or carton 1 with a hinged lid 2 having slots 7 into which a sheet 8 of reflecting material e.g. a card covered by metal foil, is fitted. The lid is held in an inclined position by means of stay 5 slotted to receive the edge of the lid. The sheet 8 may also be stuck to the inner surface of the lid and the lid held upright by means of semi-circular cuts crossing the hinge line between the lid and box 1, the cuts being foldable about lines perpendicular to the hinge line. The box 1 may also be foil-lined and the base of the box provided with drainage outlets.
Patent GB-707171-A (GB)
Title: Improvements in rotary drilling crowns
IPC: E21B10/46
Filed: 1951-08-16
Abstract: 707,171. Diamond tools. BOART PRODUCTS, SOUTH AFRICA, Ltd. Aug. 16, 1951 [Sept. 15, 1950], No. 19359/51. Class 124 In a rotary drilling coring or non-coring crown in which diamonds project from the surfaces of the crown, the areas of the surface between the diamonds at the cutting face, and possibly also the circumferential wall, are provided with a hard wear-resisting skin of tungsten carbide or other hard metal bonded to the matrix of the crown.
Patent GB-381240-A (GB)
Title: Improved means for mounting and supporting the rollers or pulleys of an endless travelling band or belt
IPC: G03D15/02
Filed: 1931-07-06
Abstract: 381,240. Endless belt conveyers. HALL, B. F. and HALL & CO., Ltd., B. J., Stourton House, Dacre Street. London. July 6, 1931, No. 19397. [Class 78 (i).] The position of the belt B of a machine for drying photographic prints is maintained automatically by supporting each end of the roller A in a bearing a<1> provided with a loosely fitting collar formed with a flange a<2> which is suspended by links a<3>, a<4> from fixed parts of the framework.
Patent GB-386243-A (GB)
Title: Method of increasing the resistance to wear of curved railway or tramway rails
IPC: E01B5/14
Filed: 1932-07-12
Abstract: 386,243. Railway &.c. rails. VEREINTGTE STAHLWERKE AKT.-GES., 67, Breitestrasse, D³sseldorf, Germany. July 12, 1932, No. 19677. Convention date, July 27, 1931. [Class 104 (ii).] To increase the resistance to wear of curved railway &c. rails, they are coated with a thin layer of soft metal, such as lead or zinc, applied by spraying &c.
Patent GB-597833-A (GB)
Title: Improvements in or relating to polymerisation products of ethylene
IPC: C08K5/00
Filed: 1945-08-01
Abstract: The solubility of substantially saturated and soluble polymers and interpolymers of ethylene is decreased by mixing and heating above 40 DEG  C. with organic peroxides, compounds containing a N-Cl grouping, metal alkyls, amine oxides, or hydrazine salts or their derivatives, all of which are capable of generating free radicals when heated. Preferably between 0.5 and 2.0 per cent of the compound is used and the heating is carried out between 70 DEG  and 250 DEG  C.  Mixing may be carried out directly on rolls with or without the use of small amounts of a solvent, e.g. benzene, as temporary plasticiser or the ingredients may be dissolved or dispersed in a suitable liquid and cast or extruded as a film, fibre or tube.  Fillers, pigments or plasticisers may also be added to the composition.  Heating may be done in an oven or under pressure in a mould.  Specified interpolymers of ethylene are those with carbon monoxide, acrylic and alkacrylic acids, their esters and nitriles, vinyl acetate, propionate and chloride, vinylidene chloride and maleic and fumaric acids and derivatives thereof.  Compounds capable of generating free radicals specified include benzyl and lauroyl peroxides, chloramine-T and B, dichloramine-T, lead tetraethyl, lead diethyl dibromide, triethylamine oxide, hydrazine hydrate, hydrochloride and sebacate and dibenzoyl hydrazine.
Patent GB-670206-A (GB)
Title: Improvements in or relating to deep-well pumps
IPC: F04D13/10
Filed: 1949-07-27
Abstract: 670,206. Centrifugal pumps. KRIEGBAUM, O. July 27, 1949. No. 19781/49. Class 110(i). A deep-well pump set comprises a centrifugal pump driven by an axial-flow turbine which is supplied with working fluid by a main pump or other means located above ground, the exhaust from the turbine and the liquid delivered by the centrifugal pump being led upwards in a common pipe. A deep-well pump 6, Fig. 1, is driven by a turbine 5 which is supplied with driving water by a motor-driven pump 2. The water leaving the turbine joins the well water, as shown, or flows directly into the inlet of pump 6, or alternatively flows into the delivery pipe of pump 6. Fig. 4 shows a unitary construction of the deep-well pump and its driving turbine, wherein driving water is supplied through a pipe 7 to the turbine rotor 12 and passes by way of a bend 14 into a discharge pipe 8 to join the water lifted by a centrifugal impeller 13. Some of the water at the turbine inlet is diverted by way of a filter 19, duct 23 and the interior of the driving shaft 9 to lubricate a bearing 11, after which it exerts pressure on one side of a thrust balance disc 17. The other side of the disc is subjected to the pump inlet pressure. Water also passes through bearing 24 to lubricate it and then acts as a sealing liquid for sealing surfaces 20, 21, which are connected by ducts 22 through the rotor 12. In the construction shown in Fig. 5, the unit is suspended from a stationary tube 26, and the pipe 8 may then be omitted. The inlet and outlet guides of the pump are formed in a single-piece removable' unit 25. The pump impeller may be inverted so that its axial thrust opposes its weight, and the back plate of the impeller may then act as the thrust balancing disc. The pump and turbine may both be of multistage construction, with the balancing means situated between them. A single main pump may supply driving liquid to a number of deep-well pump units. The main pump may be replaced by a hydraulic main.