baber/WOPTO huggingface dataset:
Patent GB-439252-A (GB)
Title: Improvements in frames for moulding paving slabs
IPC: B28B7/00
Filed: 1934-07-04
Abstract: 439,252. Moulds for slabs or edging- tiles. OPPERMAN, O. R., 3, Albemarle Street, Clerkenwell Road, London. July 4, 1934, No. 19681. [Class 87 (ii)] For moulding paving-slabs or border or edging tiles, frame members 1 are provided of different lengths of wood or metal and so shaped at their ends that they can be hingedly connected together without the use of pins, rods or the like to form moulding frames of the shapes and sizes required and can also be readily disconnected. The metal strips 1 may be formed at one end with a hook bend 1<a> and at the other with a circular bend 1<b> such that the bend 1<b> on one strip can fit within the bend 1<a> of another. The frames so formed may be anchored to the ground by spikes passed through the circular bends 1<b>. For border or edging tiles, one frame member may be undulated or serrated to give an ornamental upper edge to the tile and the remaining three walls of the frame may be formed by a single bent member. When made of wood, each member is formed with an open transverse slot or circular groove near one end and is rounded or headed at the other end. The rounded end may be bored to receive an anchoring spike.
Patent GB-1348864-A (GB)
Title: Release agents for films
IPC: C08J7/043
Filed: 1972-04-28
Abstract: 1348864 Release-coated products WACKERCHEMIE GmbH 28 April 1972 [7 May 1971] 19783/72 Heading B2E A release coating is provided on a film made from a mixture of a bituminous substance and a polymer by applying to the film surface a pulverulent resin which has a softening point of 60-170C and which is miscible with the mixture at this temperature. The pulverulent resin may be of PVC, polystyrene, ABS resin, polyethylene, polymethacrylate, or vinyl chloride-vinyl acetate copolymer or may be a coumarone-indene, polyindene, lignin-sulphonic acid or resol-type phenolic resin. The bitumen of the substrate may be obtained from petroleum residues or may be a pitch obtained by the distillation of coal-tar. The polymer of the substrate may be ethylene-vinyl acetate copolymer, natural rubber, a synthetic rubber such as ethylene-propylene, ethylene-propylenediene, polybutadiene, butadiene-styrene, isoprene, chloroprene or acrylonitrile rubber, or mixtures of these rubbers with each other or with polyethylene ,polypropylene, PVC, polyvinylidene chloride or polystyrene.
Patent GB-728799-A (GB)
Title: Improvements in or relating to coconut splitter
IPC: A23N5/03
Filed: 1953-07-17
Abstract: 728,799. Splitting coco-nuts. REY, H. D. July 17, 1953, No. 19868/53. Class 58. [Also in Group VI] A coco-nut 68, hand placed on spaced bars 64, is split by a blade 17 on a falling weight 16 which has been raised by a cable 21 on a power rotated drum 22, and released automatically when at the top. The operator swings clutch handle 32 to position 70, Fig. 4, to engage the dog clutch of winding drum 22 whereupon the weight 16 and attached blade 17 are raised by cable 21. At the top a bracket 40 on the weight trips a bar 43 whereby the attached rod 41 rocks lever 32 back to declutching position allowing the blade 17 to descend on a coco-nut placed on bars 64 and centred by leaf springs 67. In the case of a smaller nut the operator can swing the clutch handle 32 to declutch the weight 16 before it has attained its full height. A rubber &c. block is interposed between the weight 16 and the blade 17.
Patent GB-820958-A (GB)
Title: Improvements in or relating to coke oven and like installations
Inventor: BURRIDGE FREDERICK JAMES
IPC: B65G67/00
Filed: 1956-06-27
Abstract: 820,958. Controlling by electromagnetic radiation. WOODALL-DUCKHAM CONSTRUCTION CO. Ltd. Sept. 25, 1957 [June 27, 1956], No. 19978/56. Drawings to Specification. Class 40 (3). [Also in Group XXX] In an installation in which coal &c. from a bunker is delivered through shoots into trucks, movement of a truck while a shoot is open is prevented by arranging for electromagnetic radiation, e.g. X-rays or gamma rays to be interrupted by a shoot door or a shutter carried thereby. The radiation sources and detectors may be carried by the bunker or by the trucks and may be arranged parallel to or transverse to the pivoted quadrant-like doors of the shoots. The detectors may control the supply of power to the trucks. Specifications 801,116 and 801,117 are referred to.
Patent GB-431235-A (GB)
Title: Improvements in and relating to vertical boring and turning machines
IPC: B23B3/10
Filed: 1934-07-07
Abstract: 431,235. Grinding machines. DEUTSCHE NILES WERKE AKT.-GES., 6, Riebestrasse, Weissensee, Berlin. July 7, 1934, No. 20012. Convention date, Sept. 4, 1933. [Class 60] [See also Group XXII] A vertical grinding-machine for treating railway-wheel tyres w or the like has two compound tool rests A, B, comprising lower slides which are horizontally adjustable by a screw 4 and upper slides 7, 7<1> which are vertically adjustable and are provided with long guides for bar-shaped cutter-holders, the slides 7, 7<1> being adjusted so that only the lower ends of the cutter holders enter the interior of the work. The tools in the rest A turn the cylindrical surfaces w<1>, w<2> of the work while those in the rest B cut the spring ring groove w<3> and shoulder w<4>. A third rest C for a grinding disc 54 may be mounted between the rests A, B, the slide being extended laterally to carry a vertical slide 55 on which the motor 56 and grinding spindle 57 are mounted. After the cutter holders carried by the rests A, B have been moved upwards out of the work, the slide 55 is lowered by hand or automatically for grinding the turned surfaces without resetting the work.
Patent GB-878176-A (GB)
Title: Multiply paper sacks
Inventor: PRICE DAVID REES
IPC: B65D30/18
Filed: 1959-06-11
Abstract: 878,176. Paper sacks. BOWATER RESEARCH & DEVELOPMENT Ltd. May 30, 1960 [June 11, 1959], No. 20092/59. Class 94(2). The blockbottom end of a multi-ply paper sack includes a tear strip 5 secured to a face flap 4, constituting part of the blockbottom closure, outside the area of overlap of the face flap 4 with the other face flap 3. The strip is adhesively secured to that face flap which overlies the other and extends the full length of the flap, contriving at one end so that a tail 6 may be folded over and secured to the top surface of the flap 4. A suitable material for the strip is combed cotton coated with pressure-sensitive adhesive. Preferably the tear strip is secured to the non- valve end of the sack. Specification 754,578 is referred to.
Patent GB-1454839-A (GB)
Title: Extrusion press
IPC: B21C25/02
Filed: 1974-05-07
Abstract: 1454839 Extruding WEAN UNITED Inc 7 May 1974 [25 May 1973] 20095/74 Heading B3P An extrusion press has a die changing device which removes a die assembly 34 from the press for disassembly into the component parts such as die holder, backing bolster and die. The die assembly is mounted on a die changing slide 26 which is moved by a piston-cylinder unit 38 to position a used die assembly under a finger 42 which is pivoted to deposit the assembly so that it can roll down a guide 50 to abut a retractable stop 60. The stop 60 defines a disassembling station which includes a piston-cylinder unit 74, Fig. 3, to push the bolster 70 and die 72 out of the holder 68. The die 72 is deposited on a ramp 80 which is lowered to allow the die to roll on to a conveyer 90, leading to a die cleaning and preparing station. The bolster 70 rolls down a guide 92 to an assembling station and the die holder 68 rolls on rails 100 also to the assembling station. A new or cleaned die is fed from a conveyer 102 on to a lifting block 114 which raises it to the assembling station whereat piston-cylinder units (120), (122), Fig. 5 (not shown), co-operate to load the bolster 70 and die 72 into a die holder. The die assembly is raised further and deposited on a guide 52 so as to roll into an opening 36 in the die slide 26.
Patent GB-913489-A (GB)
Title: Improvements in or relating to nuclear reactors
Inventor: CAMPBELL RONALD HUGH
IPC: G21C17/10
Filed: 1959-06-12
Abstract: 913,489. Reactors. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. May 31, 1960 [June 12, 1959], No. 20181/59. Class 39 (4). Neutron flux distribution in a reactor is measured by passing a fluid through the reactor core and measuring the activity induced in the fluid. The fluid may be allowed to remain stagnant in the core before removal and measurement. Alternatively, it may flow continuously first at one speed and then at another; differentiation of the measured activity then gives the flux distribution. The fluid flows in small-bore pipes, which may be re-entrant and coaxial as shown in Fig. 1 to reduce the effect of variations in fluid temperature. A suitable fluid is argon.
Patent GB-297413-A (GB)
Title: An improved method of manufacturing compound glass and like materials and articles produced therefrom
IPC: C08F2/02
Filed: 1928-07-11
Abstract: 297,413. R÷hm & Haas Akt.-Ges. Sept. 21, 1937, [Convention date]. Mirrors. - Unsaturated organic compounds which are polymerized or polymerizable to a solid form and such as have good elasticity when polymerized are united to glass, enamel, metal, porcelain, &c. to form splinterless mirrors &c. Two examples are given, (1) a layer of methyl ester of cinnamic acid is placed between two glass sheets and exposed to light to cause polymerization; (2) a plate of 4mm. thickness of polymerized ethyl ester of crotonic acid is placed between two sheets of glass and united thereto by pressure at 90‹ C. The organic compound may be applied in solution, the solvent being removed by evaporation. Heat and pressure may be varied to prevent formation of bubbles. Strengthening or colouring materials such as azo dyes, metal powders &c. may be added to the organic compounds. Specification 254,668, [Class 20 (iii), Doors &c.], is referred to.
Patent GB-505467-A (GB)
Title: Improvements in or relating to four stroke cycle internal combustion engines operating by means of liquid fuel injection
IPC: F01L1/28
Filed: 1938-07-08
Abstract: 505,467. Oil engines ; valve mechanism. BUCHI, A. July 8, 1938, No. 20250. Convention date, July 11, 1937. [Classes 7 (iii) and 7(vi)] A four-stroke compression ignition oil engine having a disc-shaped combustion chamber 7 of smaller diameter than the cylinder bore has coaxial valves controlling air intlet and exhaust. The upper part of the chamber is of larger diameter than the lower part into which a projection 9 on the piston enters. The valves are provided with discs 22, 23 which are engaged by cams 18, 19 and 20 on a shaft 21 which is driven from the crank-shaft 6 by a chain 24 which also drives a fuel pump 31 supplying fuel to a single nozzle or to a pair of nozzles 32, 33. During scavenging both valves are held open and a convex head 11, Fig. 3 on the valve 13 enters a corresponding recess in the projection 9. The air may be admitted through the annular epace between the valves 12, 13 and may be given a a rotary movement about the valve axis by forming helical surfaces on the ribs connecting the outer stem and sleeve of the outer valve. Alternatively the air may be admitted trough a spiral shaped passage 3(i around the outer valve and may be led tangentially towards the valve by ribs in the passage. The exhaust gases may drive a turbine to actuate an air compressor.
Patent GB-531907-A (GB)
Title: Improvements in and relating to dynamic braking apparatus for controlling alternating current motors
IPC: H02P3/24
Filed: 1939-07-12
Abstract: 531,907. Control of A.C. motors. BROOKHIRST SWITCHGEAR, Ltd., and SHREEVE, A. G. July 12, 1939, No. 20261. [Class 38 (iii)] Non - regenerative braking. A motor is disconnected from its supply by de-energization of a main contactor C, and back contacts C, thereupon energize a braking contactor B which connects a rectifier T on one side the supply, and on the other side to the motor windings. A condenser K is connected in parallel with the coil Sa of a relay S across the output terminals of the rectifier, and is gradually charged after the braking connections have been established. Thus the voltage applied to the coil Sa increases and after a pre-determined period of braking contacts S, are closed to deenergize a relay R which de-energizes the contactor B, and disconnects the rectifier T. The application of the system to a motor controlled to run selectively in both directions is described with reference to Fig. 2, not shown.
Patent GB-994597-A (GB)
Title: Improvements in or relating to endless conveyor belts
Inventor: JEFFREY ERNEST HAROLD KENNETT
IPC: B65G15/54
Filed: 1963-05-22
Abstract: 994, 597. Wire fabric. BRITISH WEDGE WIRE CO. Ltd. May 11,1964 [May 22,1963], No. 20302/63. Heading D1K. [Also in Division B8] The half-turn at each end of each coil of a conveyer belt fabricated from interlinked coils 12 and rods 10, is formed with a kink 14 in order to permit contraction of the spacing of adjacent coils as the conveyer traverses bends.
Patent GB-205596-A (GB)
Title: Improved prepayment mechanism for gas meters and the like
IPC: G07F15/02
Filed: 1922-07-27
Abstract: 205,596. McIntyre, J., and Milne & Son, Ltd., J. July 27, 1922. Gas, supplying by meter.-In prepayment mechanism for gas meters at any desired point during the rotation of a hand-operated toothed wheel, this wheel is made to mesh with, then rotates another toothed wheel by the combined action of a coin, one stationary cam and one moving cam with two projections. The valve stem W, Fig. 2, is attached to a pivoted plate U actuated by the depending loosely mounted pin T of a travelling screw S working in a slot therein. The screw passes through a wheel nut P having combined bevel and straight teeth, a pawl R, Fig. 3, allowing rotation of the nut in one direction only. After insertion of a coin, the nut P is rotated to open the valve by a bevel-wheel K which is rotated by hand and made to mesh with it. The screw is rotated to close the valve bv a slotted tube Y with which a key X on the screw engages, the tube being rotated by the meter by the engagement of a meter shaft in a square hole W<1> in a cap Z on the tube. The wheel K is carried by a tube M turning freely in the handle F and on a fixed plug B<1> and containing a compression spring A<1> which, acting against the plug B', normally holds the wheel K out of mesh with the nut P. When the pin T has reached the end of the slot in the plate U after the insertion of the maximum number of coins, a catch Z' on the screw engages a snug 0<1>, Fig. 6, on the wheel K preventing this from being disengaged from the nut P and the insertion of another coin until some gas has been consumed. Coin action, mechanical-connection; pricecharging mechanism.-When a coin is inserted through a slot D' into a carrier L on the wheel K, the wheel is first rotated until the coin strikes the start of a stationary cam B on the back of a price-change disc A, by the coin resting against the start of a cam H on a disc G carried by the handle F and having two projections I, J. On further rotation of the handle, the cam H lifts the coin over the cam B, thus causing the wheel K to mesh with the nut P and the projection I acting against the carrier L rotates the wheel K until the coin strikes a discharge stop. The spring A<1> then disengages the wheels K, P and the carrier and wheel K are returned by the projection J to receive another coin. In this position Fig. 6, in order to prevent tampering with the mechanism, the snug 0<1> contacts with the casing N and prevents the wheel K from being moved forward into mesh with the nut. Coin-slit closing devices.-The slot D<1> is closed by a thin metal ring C<1> mounted on pins E<1>, E<2> on the wheel K so that it can rotate with the wheel, but is prevented from moving laterally therewith by a plate F<1>.
Patent GB-170094-A (GB)
Title: Improvements in and connected with dynamo electric machines
IPC: H02K5/14
Filed: 1920-07-10
Abstract: 170,094. Schroeder, F. H. July 10, 1920. Casings and frames; brush-holders; field magnets. - The casing of a dynamo-electric machine is formed with apertures at one end through which the poles and windings may be withdrawn and a cover-plate at the other end constituting a brush rocker which closes an opening through which the armature may be drawn. In the form shown, the casing a and diametral end webs l adjoining the pulley define arcuate openings m through which the poles c may be withdrawn when the bolts e have been removed. The other end of the casing is formed as an annulus n with flanges p to receive bolts w for securing the plate q, which carries the bearing hand the brush arms s. Curved slots v in the plate allow it to be rocked for brush adjustment. The armature, together with the plate q and brush gear, may be removed axially when the bolts 5 securing the bearing j are released and the pulley and the nuts at w are taken off. To remove the pulley a screw is inserted in its boss at 6 so as to bear on the end of the shaft. The bearing j may be alternatively secured by two flanged bushes one of which is screwed into the other. The apertures x, m assist the cooling.
Patent GB-460197-A (GB)
Title: Improvements in or relating to television and like systems and apparatus therefor
IPC: H04N3/08
Filed: 1935-07-22
Abstract: 460,197. Television. BAIRD, J. L., and BAIRD TELEVISION, Ltd. July 22, 1935, No. 20741. [Class 40 (iii)] A mirror helix undergoes a real or apparent displacement from one traversal to another to produce intercalated scanning. The helix 1, Fig. 1, may be moved by a cam 3 against the action of a spring 4 ; alternatively, the helix 1, Fig. 2, may be viewed in a mirror 8 oscillated by a rotating cam 10. A moving prism may be used instead of the mirror 8. In a modification, the mirrors are arranged so as to form a plurality of interlocked mirror screws, to produce intercalated scanning. Specification 442,668 is referred to.
Patent GB-167489-A (GB)
Title: Improved commutating apparatus for electrical commutator machines
IPC: H02K3/16
Filed: 1921-08-04
Abstract: 167,489. Siemens Schuckertwerke Ges. Aug. 9, 1920, [Convention date]. Void [Published under Sect. 91 of the Act]. Armatures, dampers and short-circuited screens on cores of; commutating - windings.-The commutation of dynamo-electric commutator machines is improved by means of short-circuited coils each looped round a single tooth on the armature. The coils d may be short-circuited directly or through resistances, or they may be connected to an auxiliary commutator k provided with a brush b. Each armature tooth z may be looped by a coil, or only alternate teeth may be so looped. The coils are bedded on the bottom of the armature slots. Separate conductors may be used for one side only of the coils, the main armature conductors being utilized for the other side of the coils.
Patent GB-931469-A (GB)
Title: Process for the production of inert gas mixtures
Inventor: NESSLER FRIEDRICH
IPC: C01B23/00
Filed: 1961-06-09
Abstract: Oxygen free gas mixtures are prepared by adding to recycled oxygen free mixture of nitrogen and noble gases, in a proportion of less than 1 part air to 10 parts mixture, adding hydrogen in sufficient amount to react with all the oxygen present as in the parent Specification, passing resulting mixture over a catalyst for the reaction between hydrogen and oxygen at a pressure higher than that at which the product is to be collected, removing the water formed, separating a major portion of the oxygen free mixture for recycling, expanding the remainder in a tank, and starting or stopping the feed of air and hydrogen in response to pressure variations in the tank. Air and hydrogen pass through valves 3,4 from compressors 2,1, into recycle stream from pump G, and the resulting mixture is fed to catalyst furnace K.  The proportion of hydrogen to air is controlled in response to <PICT:0931469/III/1> analyser A.  Water is separated in condenser W and withdrawn through two float operated valves, S1,S2 the former being of smaller section than the latter.  A major part of the effluent is recycled through pump G and the remainder passed through drying tank T1 which operates or is regenerated alternately with drying tank T2.  Dry gas is withdrawn through valve U operating at a certain pressure to tank V at a lower pressure.  The feed valves 3,4 are operated by pressure controller D.  The drying tanks are regenerated by hot gases circulated by pump P or by cooling in tank W2 under reduced pressure, condensate being removed by float operated valves S3,S4.
Patent GB-743445-A (GB)
Title: Manufacture of therapeutically valuable alcohols of the cyclopentanopolyhydrophenanthrene series
IPC: C07J1/00
Filed: 1953-07-28
Abstract: Cyclopentanophenanthrene compounds which possess in the 3-position the grouping <FORM:0743445/IV(a)/1> and in the 17-position the grouping <FORM:0743445/IV(a)/2> , wherein R1 represents a saturated or unsaturated hydrocarbon residue, and R2 indicates a saturated or unsaturated hydrocarbon group containing from 1-3 carbon atoms, are prepared by treating a 17-keto-cyclopentanophenanthrene compound, which contains in the 3-position the grouping <FORM:0743445/IV(a)/3> , or a 3-keto-cyclopentanophenanthrene compound which contains in the 17-position the grouping <FORM:0743445/IV(a)/4> , (R4 being a hydroxyl group or a group convertible by hydrolysis into a hydroxyl group), with an organo-metallic compound, e.g. an alkyl magnesium halide, a lithium alkyl or an alkali metal acetylide, and thereafter decomposing the reaction product by acid hydrolysis.  Compounds in which R1 and R2 are the same hydrocarbon group may also be prepared by treatment of the corresponding 3 : 17-dione with an organo-metallic reagent.  In examples: (1) 3b - methylandrostan - 3a - ol - 17 - one in dioxane-ether is added to potassium acetylide in liquid ammonia and the product decomposed with dilute sulphuric acid to yield 3b-methyl-17a  - ethinylandrostan - 3a : 17 - diol.  (2) As in (1) 3a-methylandrostan-3b-ol-17-one yields 3b - methyl - 17a  - ethinylandrostan - 3b : 17 - diol.  (3) Ethereal 3a - methylandrostan - 3b - ol-17-one is added dropwise to ethereal methyl magnesium iodide, and the product decomposed with acid to give 3a : 17a -dimethylandrostan-3b : 17b  - diol. 3b : 17a  - Dimethylandrostan - 3a : 17b -diol is similarly prepared from the 3b-methyl isomer.  (4) 17a -Ethinylandrostan-17b -ol-3-one is treated as in (3) to give a mixture of 3a - methyl - 17a  - ethinylandrostan - 3b : 17b  - diol and 3b - methyl - 17a  - ethinylandrostan - 3a : 17b -diol, which are separated by their differing solubilities in ether. Specification 738,631 is referred to.
Patent GB-211709-A (GB)
Abstract: 211,709. Wheeler, J. L. Feb. 28, 1923. Measuring. - A machine for measuring fabrics has price charts 5, Fig. 1, visible to the salesman through windows 4 in the top of the machine and registering with price rate figures on scales 6, and length indicators 22, 23, Fig. 4, visible to the customer at the end of the machine remote the salesman, the indicators 22, 23 being driven through gearing from the measuring-roller 9 and the units indicator 23 being moved step by step by a Geneva stop mechanism. A dial having units and fractions indicators 20, 21 visible to the salesman may be provided. The charts 5 may bear indications of the length of material passed through the machine. A lever 51 for operating means for cutting the edge of the material is provided.