baber/WOPTO huggingface dataset:
Patent GB-935093-A (GB)
Title: Coated abrasive
IPC: B24D3/00
Filed: 1960-01-08
Abstract: A flexible coated abrasive sheet comprises a flexible backing sheet, a layer of abrasive grain bonded to said sheet by a first bonding adhesive, and a second coating of a bonding adhesive overlying the first bonding adhesive consisting essentially of a hardened mixture of (i) an amine catalysed phenolic resin in the liquid state, and (ii) 10 to 25% by weight, based on the total adhesive solids, of a polyoxyalkylene modifying agent formed by reacting ethylene oxide, or other alkylene oxide having an oxygen: carbon atomic ratio of at least 0,5:1, with a hydrophobic base formed by the reaction of propylene oxide with propylene glycol or other organic compound containing at least two active hydrogen atoms, namely hydrogen atoms which are sufficiently labile to open the epoxide ring of 1,2-propylene oxide and which react with methyl magnesium iodide to liberate methane in the Zarewitinoff Reaction, including such of these compounds having a molecular weight of 2,000 to 3,000, a hydrophobic unit of the molecule having a molecular weight of 1,200 to 2,250 and a hydrophilic oxyethylene or oxyalkylene substituent varying between 10 to 40% of the weight of the total.  The mixture may be present in the grit-size coating.  The flexible backing sheet, e.g. paper, may be impregnated with rubber, e.g. butadiene-styrene. The first bonding coat may be a solvent and water resistant resinous adhesive, e.g. Epon ester-dehydrated castor oil fatty acid and glyceryl phthalate alkyd resin mixture, an oil modified phenol aldehyde condensation product or an oil modified alkyd resin prepared from pentaerythritol and a polybasic acid.  The phenolic resin may be the condensation product of phenol, 3,5-xylol, m-cresol or m-chlorophenol with an aldehyde, e.g. formaldehyde. The backing sheet may be backsized with an oil-modified phenolic and sized on the coat side with vinyl chloride and butadiene-acrylonitrile rubber.
Patent GB-589972-A (GB)
Title: Improvements in or relating to cinematograph film joining machines
IPC: G03D15/04
Filed: 1945-01-23
Abstract: 589,972. Kinematograph film joining machines. VINTEN, C. Jan. 23, 1945, No. 1831. [Class 98 (ii)] The machine comprises means for supporting a length of film with its emulsioned surface uppermost and a rotary cutter for removing the emulsion mounted on a slide adapted to be reciprocated in a guided path above, and transversely of, the film so that the cutter removes emulsion from the upper film surface. As shown in Fig. 4, the end 12 of one of the films is clamped on an anvil 11 by a plate 15 carried by levers 14 pivoted to the base 10 and held in position thereon by a catch 16<1>. The end 16 of the other film, as shown in Fig. 5, is clamped on a movable anvil 17, mounted on levers 25 similarly pivoted on the base, by a plate 23 mounted on levers 18 also pivoted to the base and adapted to be raised or lowered by a hand-lever 19, which is pivoted to lugs 20 on the base and is linked to the lever 18 by bars 21. Anvil 17 and plate 23 may be coupled together by a catch 24. Exposed when anvil 17 is raised by the lever 19 is a bar 26, Figs. 1 and 5, over which is adapted to move a slide 27 carrying a rotary cutter 28, Fig. 1, mounted on a spindle 29 coupled through speed multiplying gearing 30 ... 33 with a rack 34 on the base 10 so that the cutter is rotated and traversed in contact .with the film end 12 as the slide 27 is moved over the bar 26. In operation, with levers 18 raised, the film end 16 is placed on the movable anvil 17 with its sprocket holes engaging registering pins 13 on the anvil, Fig. 4 ; levers 18 are lowered and the plate 23 is secured to anvil 17 by the catch 24. Anvil 17 and plate 23 are now raised together by hand-lever 19 and one film is clamped on anvil 11 with its end 12 overhanging. Slide 27 is moved across this end 12 and emulsion removed by rotation of the cutter 28. Film cement is applied to end 12 and the hand-lever 19 is operated to align anvil 17 with anvil 11 and to bring the film ends 12, 16 into contact. A lamp 30 mounted below anvil 11 provides heat to harden the joint. The cutter may be rotated by an electric motor, which may be of reversible type and which may also move the slide 27.
Patent GB-575298-A (GB)
Title: Improvements in heating apparatus for buildings
IPC: F24B7/04
Filed: 1944-02-01
Abstract: 575,298. Air heaters ; steam generators. BERRY, F., JOHNS. W., and HOWMAN, H. E. Feb. 1, 1944, No. 1836. Addition to 571,306. [Classes 64 (iii) and 123 (ii)] An air heater comprising a hollow elongated metal box a with internal baffles b is connected at one end to a pipe c with a valve g admitting air from a fan or air pump h. The pipe c has a branch pipe e with a tap f for admitting water, which is immediately vaporized on dripping into the box, which may be built in or fitted to a fireplace. Heated gas leaves the box. by a pipe d and is used for heating a room or for central heating. Air may be thus sterilized, or a mixture of air and steam used for central heating.
Patent GB-659417-A (GB)
Title: Improvements in and relating to circular weaving looms
IPC: D03D37/00
Filed: 1949-01-25
Abstract: 659,417. Circular looms. SAINT FRERES SOC. ANON. Jan. 25, 1949; No. 1999. Convention date, Jan. 28, 1948. [Class 142(ii)] Each shuttle is followed by a rubber-clad roller 1 driven at a peripheral speed which is slightly higher than its orbital speed, so that it lifts the warp threads 12 and deposits them behind their previous position to counteract the tendency of the shuttles to drag the threads round the loom. When the shuttles are driven by rollers 3, the roller 1 is on the same shaft as the roller 3 and is of slightly greater diameter. The weft laying arms on the shuttles carry barbs which pluck the warp threads to equalize their spacing before they are lifted by the roller 1.
Patent GB-401528-A (GB)
Title: Improvements in or relating to rotary compressors
IPC: F01C1/344
Filed: 1933-01-23
Abstract: 401,528. Rotary compressors. ROCHEFORT, F., 80, Rue de Normandie, Courbevoie, Seine, France. Jan. 23, 1933, No. 2098. Convention date, Jan. 23, 1932. [Class 110 (ii).] The outwardly-sliding vanes k are constructed in pairs and fitted together as in Fig. 4. To partially balance the out-ofbalance centrifugal force on a pair of blades, each blade has its inner end k<1> formed as a differential piston which compresses air admitted at atmospheric pressure through grooves c<3>, between the top of the piston k<1> and the upper end of a slot c<2>. Small inclined grooves c' allow some of this compressed air to pass into the working spaces n. The rotor is built up of hollow sectors c secured by tubular screws e to end discs d, d<1>, provided with radial ribs for driving purposes. The casing bore is conchoidal in shape and a liner a<1> is surface hardened. The blades k are balanced by lead pellets situated off-centre in the unsymmetrical blades, and on the axis of symmetrical blades. Ball bearings f, f<1>, are secured between stops in the casing and on the shaft g to centre the rotor longitudinally and avoid rubbing of the discs d, d<1>, against the end flanges b, b<1>. Centring rings h are provided with shoulders and form a support for the sectors c. Lubricating oil enters through a nozzle o and is drawn into the grooves c<3> by the ingoing air. The nozzle may be fitted with a Venturi tube to facilitate atomisation of the oil. The blades may be formed of alloys of magnesium, celoron, or artificial resin of a density not exceeding 1.7, and the casing manufactured of aluminium or a magnesium alloy. The blades may be separated instead of in pairs. For operating at high altitudes the centre of the rotor may be connected with the delivery through a throttling device, so that air at a pressure above atmospheric may be led through the grooves c<3>.
Patent GB-661406-A (GB)
Title: Improvements in or relating to universal joints
IPC: F16D3/46
Filed: 1949-01-26
Abstract: 661,406. Universal joints. MOLLART ENGINEERING CO., Ltd., MOLLART, K. A., and HARRIS, S. E. Jan. 9, 1950 [Jan. 26, 1949], No. 2195/49. Class 80 (ii). In a universal joint comprising an intermediate ball 12 embraced by the forked ends 16, 16a of. members 10, 11 secured to shaft ends, with rolling members contained in race grooves 23, 23a, 27, 27a formed in the forks and intermediate ball, the rolling members corresponding to each member 10, 11 are retained by two slots in a C-shaped cage 33 or 33a as two separate groups 31, 32. The rolling members comprise cylindrical rollers whose diameter slightly exceeds their length, and the grooves are of V- sections, the rollers being arranged with their axes alternately displaced through 90 degrees so as to transmit torque; in both directions. The forked ends 16, 16a have internal ribs 21, 21a in which the grooves 23, 23a are formed. Balls may be used instead of rollers. Specifications 418,541 and 457,664 are referred to in the Provisional Specification.
Patent GB-699192-A (GB)
Title: Improvements in or relating to electrical precipitators
IPC: B03C3/51
Filed: 1951-01-29
Abstract: 699,192. Electrostatic filters. RESEARCH CORPORATION. Jan. 29, 1951 [April 25, 1950], No. 2197/51. Class 39(i) A collecting electrode in an electrostatic precipitator consists of a single series of vertical plate sections 25, Fig. 3, arranged in one plane and one above the other, and the upper end of each plate section has an angular projection 26 and an oppositely inclined baffle 28 to form a trough open at the bottom so that dust falling from both sides of a plate section is directed close to one side only of the next lower section. The projections 26 are preferably inclined to the vertical by about 30 degrees, and baffles 28 which are similarly inclined have short extensions parallel to the plate sections 25 to keep the dust close to the surface of the plate sections. The baffles 28 are secured to projections 26 by tie plates 29 having central slots to receive the lower edge of the next higher plate and the projections 26 preferably extend alternately to the left and right as shown so side A of the plates is alternately lightly and heavily covered with dust and similarly for side B. Baffles 28 and projections 26 have rounded or bent corona edges 31. In a modification, Fig. 4, (not shown) the plates progressively diminish in height from the top to the bottom. Both these arrangements are suitable for vertical gas flow. For horizontal gas flow precipitators, Figs. 5, 6 (not shown) the discharge and collecting electrode members are both similarly inclined to the vertical. In the vertical flow precipitator of Fig. 2 discharge electrodes carried by a frame 14 alternate with collecting electrodes 15. The discharge electrodes are energized via bus bar and spacer 16 and a frame 17 at their lower ends prevents lateral displacement and swinging. Du'st shoots 19, 20 direct the dust into a hopper 18. The collecting electrodes may be vibrated or rapped to remove the dust and cause it to fall into hopper 18. In modified electrode constructions (not illustrated) the angularly projecting members 26 may all extend to the same sides of the plates. The angular parts 26 may be integral with the plates, or separate parts secured thereto.
Patent GB-358391-A (GB)
Title: Process and apparatus for carrying out distillations under low pressure
IPC: B01D3/12
Filed: 1931-01-22
Abstract: <PICT:0358391/III/1> In a process for distilling liquids under low pressure in a closed evacuated chamber a in which liquid is fed, preferably in turbulent films, over vaporizing surfaces d and the vapours are condensed on surfaces c the distances between the surfaces being the order of the mean free path of the molecules under the prevailing conditions, the average distance which the molecules have to travel between the surfaces c, d in the direction of the vacuum pump b is always greater than in the opposite direction. Specification 303,078, [Class 32, Distilling &c.], is referred to.
Patent GB-689755-A (GB)
Title: Improved fish scalers
IPC: A22C25/02
Filed: 1951-01-29
Abstract: 689,755. Fish scalers. ROBSON, H. E. Jan. 29, 1951 [March 10, 1951], No. 2244/51. Class 28 (ii). Scales are removed from fish by blades 7, 8 mounted radially on a spindle 1 driven by a flexible driving shaft 4 the apparatus being traversed over the fish by a handle 13 and provided with a transparent guard plate 10 to deflect the scales downwards. The blades 7 are plain while the blades 8 are serrated at 9 and may alternate with each other, being welded &c. in longitudinal slots in the spindle 1. The spindle 1 is screw threaded at its open end to receive the screwed end of the flexible driving shaft. The guard plate 10 may be of the transparent substance known under the Registered Trade Mark "Perspex." The plate 10 is secured to a bracket 11 secured by a clip 12 on the handle 13.
Patent GB-289175-A (GB)
Title: Improvements in the production of coloured photographic pictures
IPC: G03C7/06
Filed: 1927-01-26
Abstract: 289,175. Christensen, J. H. Jan. 26, 1927. Colour photography; films.-A method of producing multicolour screenfilm pictures to be viewed by reflected light consists in bringing a screenfilm picture into contact with a coherent white layer having the property of reflecting the main part of the light within a depth from the surface of the layer not exceeding the average diameter of the coloured elements of the screen-film. In the form shown, a screen-film picture, produced by exposing a panchromatic film c carried by a support a of glass or celluloid with an interposed multicolour screen layer b, is placed in contact with a coherent white layer d of such nature that the main part of the light falling on the picture through the support a is turned back by the white layer as at h before it has penetrated therein to a depth equal to the diameter of the coloured elements in the layer b. The white layer may consist of a cellulose derivative penetrated by numerous air fissures, such as is obtained by pouring a solution thereof in an appropriate solvent upon a support, and drying. Such cellulose derivative may be admixed with a white pigment such as lead white or titanium oxide, and agitated with toluene before pouring upon the support. The white layer may be formed by pouring directly upon the film c, or upon paper which is subsequently attaclted to the film as by weak rubber solution; or it may be located between the layers a and b. Reference is made to white layers which are not wholly satisfactory, comprising barium sulphate, calcium carbonate, white paint, lead tungstate, and titanium oxide.
Patent GB-551103-A (GB)
Title: Improvement in method of continuously conditioning conductor rolls in continuous electroplating processes
IPC: C25D7/06
Filed: 1942-02-24
Abstract: 551,103. Electroplating metal strip. TRIGGS, W. W. (Carnegie-Illinois Steel Corporation). Feb. 24, 1942, No. 2430. [Class 41] Metal strip to be electroplated is passed over a number of conductor rolls, the roll 2 from which the strip enters the plating tank being supplied with a film of electrolyte. The electrolyte may be supplied to the roll through nozzles 4 in a pipe 3 or it may be applied by means of a wick engaging the surface of the roll.
Patent GB-1455196-A (GB)
Title: Polyesters
IPC: C08K5/10
Filed: 1974-01-18
Abstract: 1455196 Plasticizers for polyvinylchloride CIBA-GEIGY AG 16 Jan 1975 [18 Jan 1974] 2469/74 Heading C3P [Also in Division C2] A thermoplastic polymer, for example polyvinyl chloride, contains as a plasticizer a compound having the formula in which A is the residue of one or more saturated straight or branched chain monohydric alcohols containing from 1 to 20 carbon atoms, P is the residue of one or more saturated straight or branched chain aliphatic diols containing from 2 to 6 carbon atoms, D is the residue of one or more unsubstituted or substituted aromatic dicarboxylic acids which may be partially or fully hydrogenated containing from 8 to 16 carbon atoms, L is the residue of one or more saturated hydroxy acids containing from 4 to 12 carbon atoms, each of the residues being joined together by ester linkages, residues P, D and L being distributed at random throughout the molecule, a, b and c each having a value greater than 0, the amount of residue of hydroxy acid being from 10 mole per cent to 90 mole per cent based on the total number of moles of reactants and the ratio of the number of moles of alcohol to the number of moles of diol being from 2À2 to 0À93 such that the average molecular weight is from 500 to 1400.
Patent GB-680025-A (GB)
Title: Improvements in beater mills
IPC: B02C13/28
Filed: 1950-01-31
Abstract: 680,025. Hammer-mills. BABCOCK & WILCOX, Ltd. Jan. 31, 1950 [May 14, 1949], No. 2479/50. Class 59 In a hammer mill the beaters are pivotally mounted on rings surrounding the shaft at a substantial distance therefrom and connected to the shaft for rotation therewith. As shown beaters 7 with renewable heads 8, are pivotally mounted by means of pins 5 on rings 6 which are connected by spokes 4 to annular shaft flanges 2. The spokes are secured to the shaft and rings by pins 3, 5, respectively, each of which comprises short portions arranged end to end. The spokes may be adapted to exert a fan action urging gaseous fluid axially inwards from opposite ends of the shaft 1 whilst the rings 6 themselves may be adapted by the provision of fan vanes to cause a flow of fluid outwardly away from the shaft. Material to be pulverized which has been roughly milled may be introduced into the mill axially with the fluid stream but coarser material should be peripherally fed.
Patent GB-1286441-A (GB)
Title: Improvements in or relating to a domestic water system
Inventor: MILLEN THOMAS
IPC: E03B11/02
Filed: 1970-01-19
Abstract: 1286441 Domestic water supplies T MILLEN 19 April 1971 [19 Jan 1970] 2571/70 Headings BIT E1X In a domestic water system comprising an overhead tank 10 having inlet and outlet pipes connected thereto, the tank is mounted in a tray 12 and the pipes disposed in conduits discharging into said tray, the arrangement being such that any leak in the tank 10 or its pipes will be fed into the tray and discharged therefrom via an overflow conduit 17. Where a pipe is fed through the ceiling 15 it is sealed in a frusto-conical unit 14 communicating via a conduit 13, 18, with the tray. The tray and conduits 13, 17, 18 may be made of galvonised steel or synthetic, plastics or rubber and each conduits may be covered by an inverted conduit overlying or fitting therein.
Patent GB-122064-A (GB)
Title: An Improved Fire-prevention Device for Electric Cables.
IPC: F21V21/10
Filed: 1918-02-15
Abstract: 122,064. Simplex Conduits, Ltd., and Collie, J. H. Feb. 15, 1918. Supporting.-For preventing the spread of fire along an electric cable and especially along the flexible conductor in connexion with a pendant lamp-holder from a short-circuit within the lampholder or in the conductor immediately above the lamp-holder, an incombustible insulating baffle a having a conical or flat annular spreading portion A is mounted on the wire above the lamp-holder. The baffle may be an integral moulding threaded on the conductor and frictionally held thereon. The bore of the baffle may be sinuous to ensure a frictional grip on the conductor. The baffle may be in two similar parts A, A', as shown in Fig. 5, held together by a spring clip E which may fit within a circular groove on the two parts to ensure the correct positioning of the parts, or the parts may have interengaging recesses and projections for this purpose.
Patent GB-524343-A (GB)
Title: Improvements in or relating to the grading or separation of particles of solids or liquids
IPC: B01D21/26
Filed: 1939-01-27
Abstract: 524,343. Centrifugal separators. MUTCH, N. Jan. 27, 1939, No. 2907. [Class 23] Particles dispersed in a fluid medium are separated from the medium, or graded, by causing the mixture to flow at a controlled speed in a direction contrary to the tendency to motion of the particles under centrifugal force. The passages through which the mixture flows have varying sectional areas such that the cross-sectional area at any point is inversely proportional to its distance from the axis of rotation. One form of apparatus is shown in Figs. 3, 4 and has a rotating wheel 14 in which blades 15 are arranged between upper and lower walls 16, 17 to form the passages which diverge from the periphery towards the centre. Four inlets 13 are provided in the casing surrounding the wheel; they are practically tangential to the wheel and the small parts of the casing between them has outlet ducts 19 into which the coarser material is thrown. A conduit 21, Fig. 5, may be provided at the forward end of each inlet to draw off any coarse material deposited in the inlet. The fine material passes through with the medium to a central outlet. In a modification the inlets 13 instead of being in the plane of the wheel, as shown, are inclined to that plane, and their mouths are provided with guide blades. Where the suspended particles are lighter than the medium the direction of flow is reversed. To separate various grades of particles passages of the type shown in Fig. 2 are used. This has an axis XY of rotation and the first part AB has a cross-sectional area varying inversely as the distance from the axis. The part BC diverges more rapidly than this and the part CD again expands with the cross-sectional area varying inversely as the distance from the axis. This alternate arrangement of sections continues as far as desired and the maximum size of particles able to pass through the parts AB, CD, EF diminishes. The particles able to pass through the section AB but not through the section CD collect in the section BC and similar action occurs in the other parts.
Patent GB-764269-A (GB)
Title: Improvements in or relating to vehicle speedometer drives
IPC: B60Q1/54
Filed: 1955-02-02
Abstract: 764,269. Driving auxiliary parts. FORD MOTOR CO., Ltd. Feb. 2, 1955 [Feb. 10, 1954], No. 3055/55. Class 79(2). [Also in Group XIX] A speedometer is driven from teeth 13 on the output shaft 12 of a motor vehicle change speed gear, the teeth meshing with teeth 42 on a driven member 38 having a socket connection with the core 45 of a flexible cable 18, the member 38 being rotatably supported and axially fixed to a supporting member 17 mounted in a bore 16 in the gear housing 11 and the sheath 19 of the cable 18 being secured to the member 17. As shown in Fig. 4 the sheath 19 is connected by a ferrule 22 to the member 17 and the core 45 has a square sectioned end portion received in a corresponding shaped blind socket 44 in the member 38 which is made of nylon. The member 38 has a bore 39 receiving a threaded portion 33 of the member 17, the threads serving to prevent the entry of oil into the bore 37 from the housing 11. Axial movement between the members 17, 38 is limited by a C-shaped wire spring retainer 48 having its legs passing through chordal slots 46 in the member 38 and entering an annular groove 34 in the member 17. An oil seal 49 is provided between the bore 16 and the member 17, and the member 17 is located in the bore 16 by a flange 26 and a clamping strip 27. In a modification, Fig. 6 (not shown), the members 17, 38 are formed with grooves receiving flanges of a spring clip having a splined connection with the change speed housing.