baber/WOPTO huggingface dataset:
Patent GB-1025488-A (GB)
Title: Improvements relating to ramps
Inventor: ROBERTS ARTHUR
IPC: E01D2/04
Filed: 1964-01-10
Abstract: 1,025,488. Footbridges stepped ramps. TUBEWRIGHTS Ltd. March 12, 1965 [Jan. 10, 1964], No. 1243/64. Headings E1G and E1V. The approach ramps 15 and 14 to a footbridge 10 are formed with relatively long, concave-upwards treads 45, and risers 46 which are initially concave-outwards and then convexupwards, to facilitate the pushing of parambulabors across the bridge. The ramps 15 and 14 each comprise parallel hollow edge stringer beams spanning from the ground to an intermediate platform 16, and from the platform 16 to the columns 11 respectively, intermediate columns 18 and 19 being provided. Each tread and its lower adjacent riser are formed from a mild steel plate and this plate is welded, e.g. by spot-welding, two inch welds at four inch intervals, to the stringer beams along each edge, and to the adjacent plates at each end. Cleats 51 (Fig. 4, not shown) are provided at the ends of the stringer beams, and are not welded to the tread plates. The tread plates may be moved with a non-slip material.
Patent GB-505055-A (GB)
Title: Improvements in or relating to pipes for conveying water
IPC: F16L53/00
Filed: 1938-01-14
Abstract: 505,055. Water - supply pipes. VERITY, B. S. L. Jan. 14, 1938, No. 1247. [Class 99 (ii)] A water-supply pipe 1 to a cistern 4 is tapered for at least part of its length with the wider part towards the inlet, so that ice formed in the narrower end is forced towards the wider part.
Patent GB-739238-A (GB)
Title: A method and apparatus for spraying metals
IPC: B05B7/20
Filed: 1954-01-15
Abstract: 739,238. Spraying metals. TECMA ETABLISSEMENT. Jan. 15, 1954 [Feb. 19, 1953], No. 1325/54. Class 69 (3). Metal wire is continuously fed mechanically through a guide tube 5 and into a combustion chamber R having cooling fins 2d, and issues in spray form from an outlet 2c. A part of the combustion gas flows rearwardly from the chamber into the guide tube to preheat the wire. Air and combustion gas are fed to the gun through pipes 18, 20 respectively, which pipes are combined with a heat shield to form a handle which includes a combustion gas control valve. The air is directed helically by a part 13 about the guide tube and cools it, and since the tube end is a close fit within a conical nozzle 3 the air then flows rearwardly and passes through a number of radial outlets 3d into the combustion chamber. Passages 4g, 4f, Fig. 4, exhaust a part of the air to atmosphere. Combustion gas flows through passages 1e, 4c, 3c and strikes the jets of air from the outlets 3d, and the mixture is fired by a sparking plug 6. By replacing a spacing ring 8 with one of a different thickness or, alternatively, by omitting it, Fig. 4, the distance of the mouth of the wire guide tube from the main outlet is altered. Liquid fuel atomized by compressed air before introduction into the combustion chamber may constitute the combustion.
Patent GB-141791-A (GB)
Title: Improved process of and apparatus for manufacturing glass cylinders
IPC: C03B15/14
Filed: 1919-01-18
Abstract: 141,791. Wade, H., (Empire Machine Co.). Jan. 18, 1919. Drawing.-In apparatus for drawing glass cylinders, of the type in which a lateral air vent 8<a> controlled by a shutter 9<a> is employed, the air-inlet tube 4<a> is of smaller diameter than the vent 8<a> and the tube 2<a> carrying the bait. By this arrangement, an injector action is produced, which tends to keep the diameter of the cylinder constant.
Patent GB-210076-A (GB)
Title: Improvements in and relating to traps for catching rats, mice and other similar animals
IPC: A01M23/30
Filed: 1923-06-04
Abstract: 210,076. McGrath, M. B. Aug. 16, 1922, [Convention date]. Animal traps.-The striker 3 of a breakback trap has pivoted to it a lifting arm 10 the other end 11 of which is bent so that it may be placed in the usual spring 4 or in a staple attached to the base near the spring.
Patent GB-672033-A (GB)
Title: Improvements in or relating to portable cinematograph and like projection screens
IPC: G03B21/58
Filed: 1950-01-19
Abstract: 672,033. Projection screens. STABLEFORD, J. L. Jan. 19, 1951 [Jan. 19, 1950], No. 1456/50. Class 97 (i). [Also in Group XVII] A casing for a roller type screen comprises complementary hollow parts hinged at 3 so that when the casing is opened the hinged side walls abut and the lowermost surfaces 4, 5 are in the same plane, means being provided to lock the two parts in this position. In the form shown, a member 8, pivoted on a screw 10, is movable through registering slots 15, 16 in the abutting walls to engage its hooked end on a pin 17 in the slot 16. Fastenings 18, 19 are provided for the box when closed. The parts 1, 2, though complementary, may not be equal since the plane where they join when closed may be inclined. Specifications 543,105, 562,013, 562,023 and 572,129 are referred to.
Patent GB-1458274-A (GB)
Title: Apparatus for determining  distance of a workpiece
IPC: G01B11/02
Filed: 1974-01-11
Abstract: 1458274 Optical distance measurement AUTECH CORP 11 Jan 1974 [15 Jan 1973] 01457/74 Heading H4D To determine the distance of the surface of a workpiece 70, Fig. 4, a laser beam 62 is directed on to the surface by mirrors 83, 85 and causes a light spot 63 thereon. The distance is determined by imaging the workpiece surface on a vidicon tube 68 via equal length symmetrical optical paths including mirrors 64, 66 and scanning the image thereat to give a video signal with pulses corresponding to the light spot as viewed via the two paths. Electronic counting means then determines the position of the pulses within a scan and the distance between the two light spots. The output of the vidicon, Fig. 9A, is differentiated in pulse shaper 140, Fig. 5, to determine the peaks of the pulses. Pulses are then generated coincident with said peaks and a long pulse is generated starting at the first peak pulse and finishing at the second. The long pulse is fed to an analog circuit 402 where the period #T of the pulse is determined by standard ramp techniques, and the corresponding workpiece distance displayed at 86, and also to a scaling gate 184. The gate 184 is fed with 4À2 MHz pulses from generator 102 which it gates through to a divider 190 in bursts corresponding in number #T. The period #T is averaged over 100 or 1000 scans by dividing the number of pulses in each burst by 100 or 1000, and adding the resulting numbers for 100 or 1000 consecutive scans. To provide the two averaging factors a sync. generator 101, as well as providing the scan signals at 1 KHz, provides pulses at 10 Hz and 1 Hz. These are fed to contacts 197 and 199 of a two position switch 206, having a second section selecting the divide by 100 or by 1000 outputs of the divider 190. The 10 Hz or 1 Hz pulses are fed to a logic sync generator 200, Fig. 6, and the output of divider 190 to a counter gate 210. The circuit may operate in one of two modes: (a) OP mode, in which the distance of the surface of the workpiece is directly measured: (b) DEVIATION mode, in which a reference workpiece is first investigated as to its distance and the distance of the test workpiece is measured and given as the deviation from this "reference" distance, e.g. as a thickness difference.
Patent GB-1030464-A (GB)
Title: An improved picture book
IPC: G09B19/12
Filed: 1965-01-13
Abstract: 1,030,464. Picture books. E. STEINLEIN. Jan. 13, 1965 [Jan. 18, 1964], No. 1463/65. Heading B6A. [Also in Division G5] A picture book for teaching children to tell the time comprises a plurality of pages 1, each page bearing a representation of a clock or watch dial 2. Each page is also provided at the top corner with a cut-out 17, the outline of which corresponds to the contour of a clock or watch 5, into which the clock or watch is inserted with a tight fit. The watch or clock is detachably supported by the outer cover of the book, which has no such cut-out.
Patent GB-1416932-A (GB)
Title: Emulsification of sulphonated butyl rubber
IPC: C08J3/07
Filed: 1973-01-11
Abstract: 1416932 Emulsions of sulphonated butyl rubber EXXON RESEARCH & ENG CO 11 Jan 1973 [20 Jan 1972] 1509/73 Heading C3P Emulsions of butyl rubber having at least 0À5 mole per cent sulphonation in free acid form are prepared by (1) dissolving the rubber in a solvent therefor, e.g. a hydrocarbon or halogenated hydrocarbon; (2) adding to the rubber cement thus formed from 5 to 25 wt. per cent, based on the cement, of a polar organic solvent having a dielectric constant of 3-50 and selected from alcohols, ketones, ethers and esters having a total of 2-10 carbon atoms; and (3) emulsifying the cement/solvent mixture into a water phase in the presence of 5-25 wt. per cent, based on the rubber, of an emulsifier blend having an HLB of 14-19 and comprising at least two non-ionic emulsifiers selected from ethoxylated alkylphenols in which the alkyl group is C 8-12 , ethoxylated C 12-18  alcohols and emulsifiers containing both ethylene oxide and propylene oxide units, e.g. ethoxylated propylene oxide. The emulsions may be converted to latices by removal of the solvents, and the free sulphonic acid groups may be neutralized with an alkali or an amine after emulsification.
Patent GB-1003055-A (GB)
Title: Starting mechanism for internal combustion engines
Inventor: WATERS ALBERT VICTOR
IPC: F02N15/06
Filed: 1963-01-14
Abstract: 1,003,055. Electric starting mechanism for internal-combustion engines. C.A.V. Ltd. March 31, 1964 [Jan. 14, 1963], No. 1534/63. Heading F1K. The invention relates to electric starting mechanism for internal combustion engines of the kind comprising an electric motor 1 having a rotor, which is movable axially into the correct relationship relative to the stator by magnetic forces consequent upon the energization of the field windings and a pinion 3 on one end of the rotor shaft 2, the pinion being adapted to engage with a toothed wheel 4 of an engine when the rotor is in correct relationship to the stator. According to the invention the electric starting mechanism has in combination a ferrous disc-like armature 6 rotatably connected to the end of the rotor shaft remote from the pinion and a relatively fixed cup-shaped electro-magnet core 7 containing an electromagnet winding 8 arranged to be energized when the field windings of the motor are energized whereby the action of the electromagnet upon the armature will increase the magnetic field tending to move the pinion axially into engagement with the engine wheel. Any convenient means such for example as that described in Specification 984,238 can be provided for retaining the rotor in the position in which the pinion is disengaged. The electric motor may be only energized partially until the toothed wheel on the engine is engaged by the pinion.
Patent GB-1036831-A (GB)
Title: Improvements in or relating to electrical servo systems
IPC: G05D3/18
Filed: 1965-01-14
Abstract: 1,036,831. Automatic control of registration. BOBST-CHAMPLAIN S. A. Jan. 14,1965 [Jan. 16, 1964], No.1632/65. Heading G3R. [Also in Divisions G1 and H2] A D.C. servomotor 12 is supplied from an A.C. source 16 through one of two thyristors 18, 20, according to direction, with trains of complete half cycles spaced by periods of non-energization, depending upon the phase of an error signal at 22 with reference to the A.C. source and its magnitude in relation to a rate feedback signal developed by the motor armature during the non-energized half cycles. As shown, the motor moves a load 14, e.g. a machine tool or aerial, coupled to which is a position potentiometer 58 which is thus driven into alignment with a reference potentiometer 64. Transistor circuits 26, 36 effect magnitude and phase comparisons and are described in relation to Fig. 5 (not shown). Their outputs operate through AND gates 44... 52 to switch double frequency pulses to the trigger electrode of the appropriate thyristor when the error voltage is greater than the rate feedback voltage; this occurs for long periods when the error is great, becoming progressively shorter as it is reduced. Any quadrature voltages in the error signal are shorted to earth by a further transistor circuit, Fig. 4 (not shown). The system may be applied to control registration in a colour printing press (Figs. 2, 3 and 6, not shown). In this, printing rolls are driven from a single motor through differential gearing by which corrections are applied by servo motors controlled as above. The error signals are here derived by comparison of pulses from photo-cell print detectors 148 and roller position devices 158; the signals pass to a digital computer 164 from which direction information is taken on lines 166,168 and magnitude of error is fed via a digital counter and ladder network to the magnitude comparison circuit.
Patent GB-368910-A (GB)
Title: Improvements in or relating to the printing of textile materials with vat dyestuffs
Filed: 1931-01-19
Abstract: A dyestuff paste for use in printing textiles comprises a thioindigoid dyestuff and b  : b <1>-dioxydiethylether.  The preparation of pastes from Thianthrene pink FF (4 : 4<1>-dimethyl-6 : 6<1>-dichlorthioindigo), Thianthrene orange R and Thianthrene red violet RH is described in examples. For printing, a reducing and thickening paste containing British gum, corn starch, potassium carbonate, sodium formaldehyde sulphoxylate and glycerine is added to the dyestuff paste, and the fabric is printed, aged and oxidized in the usual manner.  Instead of adding the b  : b <1>-dioxydiethylether to the dyestuff paste it may be incorporated in the reducing and thickening paste, either before or after the addition of the dyestuff thereto. Specifications 147,102 and 150,303, [both in Class 15 (ii), Dyeing, Processes &c. for], are referred to.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of b : b <1>-dioxydiethylsulphide as an addition to the dyestuff or printing pastes.  This subject-matter does not appear in the Specification as accepted.
Patent GB-468898-A (GB)
Title: Improvements in and relating to split collars and the like for sealing joints and fractures in pipes and the like
IPC: F16L55/172
Filed: 1936-01-20
Abstract: 468,898. Pipe joints; stopping leakages. EDWIN, E. G., and ABBOTT, BIRKS, & CO., Ltd. Jan. 20, 1936, No. 1817. [Classes 99 (i) and 99 (ii)] A split sleeve adapted to be clamped around a joint or fracture has two or more annular grooves 5 which receive a rubber ring or other packing. The ends of the sleeve may be caulked. The grooves are in ribs 7 which may be at the ends of the sleeve. A boss 8 may be provided for a branch connection 9. The branch may be integral with the sleeve.
Patent GB-786399-A (GB)
Title: Method and apparatus for continuously drawing a glass sheet
Inventor: LONG BERNARD
IPC: C03B17/06
Filed: 1956-01-19
Abstract: 786,399. Glass drawing. COMPAGNIES REUNIES DES GLACES ET VERRES SPECIAUX DU NORD DE LA FRANCE. Jan. 19, 1956 [Jan. 24, 1955], No. 1823/56. Class 56. Relates to the drawing of a continuous ribbon of glass from a tank in a substantially horizontal direction. The bottom of the drawing tank 2 slopes upwardly to a fairly long spout 6 wherein the depth of the glass is but little greater than the thickness of the ribbon to be formed. The bottom of the tank and the spout are heated by conduction, by electric heaters 10, 14 and the surface of the glass is cooled, by convection by water-cooled air-blowing and suction tubes 15, 17, 19, 20. The spout, at least, is made from a material of low overall emissivity e.g., pure, or substantially pure, alumina, magnesia or silica, ,and the spout may be a separate member removable from the pot 2. Alternatively the spout may be made of ordinary silico-aluminous material the bottom and sides of which are covered by an electrically heated platinum sheet. The vault 22 of the spout may be made of material of high emissivity, e.g., magnesia or chrome-magnesia containing more than 5 per cent iron oxides which ensures that heat radiated from the glass is reflected back. Alternatively the lower face of the vault may be lined with a platinum sheet. These features, taken together, ensure that a maximum temperature gradient is established between the upper and lower surfaces of the glass in the spout whereby the stream of glass comprises a film of high mobility at its lower surface and a skin of high viscosity at its upper surface. The lower surface of the sheet is rapidly hardened by blower and suction tubes 27, 28 immediately after leaving the spout. The spout may be slightly concave along its longitudinal axis and the lateral walls may have longitudinal rounded grooves along their inner edges. Specification 782,149 is referred to.
Patent GB-1357243-A (GB)
Title: Apparatus for fabricating wood structures
IPC: B23Q1/72
Filed: 1972-01-14
Abstract: 1357243 Truss fabricating apparatus; work benches W G MOEHLENPAH 14 Jan 1972 [14 Jan 1971] 1983/72 Headings B4C and B4X Roof truss fabricating apparatus comprises a support assembly 1 adjustable to support abutting wood members for a predetermined truss, and a suspended C-shaped hydraulic press. The support assembly includes a plurality of substantially parallel tracks 17, 29, a stand 25 movable along the central track 17, rails 27 pivotable about a vertical pin 53 carried by the stand 25, and movable along the tracks 29 by means of carriage assemblies, a rail 19 which may be fixed (as shown) or comprise two sections (203) (Fig. 9, not shown) each pivoted on a movable stand (209), and stands 23 movable along the rails. The stands 23, 25 each include means (not shown) for clamping the stand at a chosen position, a vertically movable locator tray 43 for supporting a nail plate N below a butt joint, and means (not shown) for holding the wood members in their abutting relationships. The carriage assemblies each comprise a platform 57, rollers 59 carried by a base 63, a pivoted lever 71 connected at one end to a post 69 extending through the base and carrying the platform 57 and a screw 81 coacting with the base and lever to effect, when the screw is rotated in one direction, upward movement of the platform 57 and downward movement of the base and rollers 59 so that the associated rail 27 is raised from, and the rollers engage, the track 29 and to effect, when the screw 81 is rotated in the other direction, downward movement of the platform 57 so as to clamp parts 119 of the rail 27 against the track 29 and upward movement of the base 63 so as to move screws 79 into clamping engagement with surfaces 89 of the track and to raise the rollers 59 from the track. Each pivotable rail 27 comprises an inner and an outer section 165, 167, clamped together by means of a pivoted latch 183 (Fig. 4) which engages over a bar 185. Alignment of the sections is achieved by spigots 177 engaging in sockets 181. The carriage assemblies 31 on the two inner tracks 29 and the stand 25 are movable through chain and sprocket arrangements driven by a motor (105) (Figs. 2 and 3, not shown).
Patent GB-177893-A (GB)
Title: Improvements in or relating to railway vehicles
IPC: B61D15/12
Filed: 1921-01-13
Abstract: 177,893. Luard, E. S., (Peckitt, R. G.). Jan. 13, 1921. Seats a n d sea' backs, arrangement of. - A light self propelled or moto railway vehicle, par ticularly adapted fo line inspection pur pose, comprises a framework built up of lengths of ligh steel tubing or chan nel or V-section stee and is provided wit] seats 40, preferably made of cane-worl and having backs 45 which are attached to the framework b leather or like straps
Patent GB-109384-A (GB)
Title: Improvements in or relating to Torpedo Nets and like Protecting Apparatus.
Inventor: FARR JOHN HORACE
IPC: B63G9/00
Filed: 1917-02-10
Abstract: 109,384. Farr, J. H. Feb. 10, 1917 Torpedo nets and like protecting-apparatus are mounted so that they can travel or move at a high speed, relatively to the ship, so as to divert torpedoes. The Figures show endless travelling nets, carried by chains l, m passing around chain wheels mounted on driven spindles supported in a frame f. This frame has arms g shaped, to slide over dovetail-blocks t) fixed to the sides of the vessel. A pair of plates t are preferably fitted on the bow of the vessel. The net may be replaced by a number of ropes, wires, or the like fixed to the chains.
Patent GB-708431-A (GB)
Title: A scaffolding clamp
Inventor: RICHARDS BENJAMIN HENRY
IPC: E04G7/14
Filed: 1951-01-26
Abstract: 708,431. Scaffold clamps. TURNER SCAFFOLDING, Ltd., and CRABTREES ENGINEERING CO., Ltd. Jan. 22, 1952 [Jan. 26, 1951], No. 2109/51. Class 20 (2) A scaffold clamp for connecting tubes at right angles is of the type having a central body 1 with hinged clamps 2 on opposite sides and clamping bolts 7 which pass through slots 10 and engage the body by cross bars 9, the two slots 10 being at right angles and in parts of the body that finish off short of one another leaving a recess 13. The invention consists in bridging this recess by a strap 11 welded in position to stiffen the clamp.
Patent GB-784235-A (GB)
Title: Improvements in or relating to the production of artificial sausage casings
Inventor: FOX BERNARD VICTOR
IPC: D01F9/00
Filed: 1955-01-24
Abstract: In the production of alginate sausage casings, an aqueous solution of a water-soluble alginate is extruded through an annular nozzle into a coagulating bath, containing a water-soluble calcium salt in a proportion of 0.1-4.9 per cent by weight, based on the weight of the bath.  Suitble calcium salts are calcium chloride, chlorate, nitrate and acetate.  Preferably the bath contains also low concentrations of a sodium salt, e.g. sodium chloride, and of an acidic substance, e.g. hydrochloric or acetic acid, to ensure a pH of 6 or less.  The tubular casing may be subsequently passed into a bath containing a water-soluble calcium salt in the proportion 20-30 per cent by weight, to complete the conversion of the water-soluble alginate to the corresponding calcium compound.  This second bath may also contain a sodium salt in a concentration below 3 per cent by weight. The drying of the casing is normally effected by passing it over drying rollers at 70 DEG  C.  The alginate casing can be rehumidified, or wetted with water or softened with glycerine before collecting on reels.  An example is given.
Patent GB-1109557-A (GB)
Title: Improvements in battery charging means for slide viewers
IPC: H02J7/02
Filed: 1967-01-16
Abstract: 1,109,557. Hand held devices. GENERAL ANILINE & FILM CORPORATION. 16 Jan., 1967 [17 Jan., 1966], No. 2148/67. Heading H2H. A lamp 20 in a slide viewer supplied from self contained dry or rechargeable batteries 27, 28 on insertion of a slide and consequent closure of a switch 22, may be alternatively supplied from A.C. mains through a step down transformer (not shown) and a plug 34-36, insertion of which unshunts a rectifier 54 which changes or rejuvenates the battery and also prevents discharge of the battery to the lamp.
Patent GB-907944-A (GB)
Title: Variable speed transmission
IPC: F16H61/662
Filed: 1959-01-20
Abstract: 907,944. Expanding-wheel gear and control. VAN DOORNE'S AUTOMOBIELFABRIEK N.V. Jan. 20, 1959 [Jan. 20, 1958], No. 2171/59. Class 80 (2). In a V-belt expanding pulley gear for a motor vehicle wherein an axially movable driving pulley half 5 is pressed towards a half 4 axially fast on a driving shaft 1 by springs 16 and centrifugally actuated cams 11 pivoted at 9 on a member 7 fixed to the shaft 1, the half 5 is also movable in response to variation in inlet manifold depression which acts through a gland 19 in a chamber formed by a cylinder 18 fast on the movable driving pulley half 5 and by the member 7 functioning as a piston. Light springs 13 maintain cam engagement when the shaft 1 is stationary.