baber/WOPTO huggingface dataset:
Patent GB-604709-A (GB)
Title: Improved process and apparatus for the absorption of gas in a liquid
IPC: B01D47/02
Filed: 1945-11-30
Abstract: <PICT:0604709/III/1> In a process for absorbing a gas in a liquid under superatmospheric pressure, e.g. sulphur dioxide in weak oleum to produce strong oleum, entrained gas is separated from the liquid leaving the absorber while maintaining superatmospheric pressure, the gas so recovered is returned to the absorber, and the pressure over the liquid is reduced to atmospheric.  Liquid from the absorber is led through line 7a into degasifier 15 in which pressure is maintained by a column of liquid in pressure-reducing vessel 18.  The cup 16 reverses the direction of flow and separated gas passes through vent 12a back to the absorber. Liquid from vessel 18 overflows through line 20 to a receiver and gas is vented at 13a.  In a modification, Fig. 3 (not shown), the degasifier and pressure-reducing vessel are formed in a single vessel by a partition which stops short of the bottom of the vessel.
Patent GB-1055798-A (GB)
Title: A device for bringing a gas into contact with a liquid
IPC: F28F25/08
Filed: 1963-06-18
Abstract: 1,055,798. Contacting gases with liquids. C. G. MUNTERS. June 18, 1963 [June 27, 1962], No. 32411/66. Divided out of 1,055,796. Heading B1R. [Also in Division F4].  A contact body for use in premoting mass and/or heat transfer between gases and liquids comprises a number of corrugated sheets of thin. flexible material secured together at places where adjacent sheets touch each other and with the corrugations in alternate sheets oppositely inclined to the vertical as shown. The sheets may be made of paper.
Patent GB-341961-A (GB)
Title: Improved process of manufacturing esters of lactic acid
IPC: C07C69/68
Filed: 1929-10-25
Abstract: Hydrocyanic acid is condensed with acetaldehyde in presence of an alcohol or of a lactic acid ester and a mineral acid, preferably dry hydrochloric acid is then added to produce lactic acid, or, in presence of an excess of alcohol, the lactic acid ester.  In the examples (1) acetaldehyde is added to an alcoholic solution of hydrocyanic acid containing some water, a little sodium cyanide solution is added, and hydrochloric acid is passed through, after which the mixture is maintained at 80 DEG  C. for 2 hours; the mixture is rendered alkaline with ammonia, ammonium chloride is filtered off, and the filtrate distilled to obtain the ethyl lactate; (2) for the production of lactic acid, the process is effected as before, but after the addition of the hydrochloric acid, the mixture is heated under reflux for 4 hours, and ammonium chloride is filtered off; the bulk of the alcohol is then distilled off, water and hydrochloric acid are added, and the mixture is distilled on a water-bath until no more alcohol is removed, when a vacuum is applied to remove remaining alcohol and ethyl lactate, leaving lactic acid containing some lactide; (3) hydrocyanic acid and acetaldehyde are added to ethyl lactate containing some water, and a little sodium cyanide may be added; after 2 hours hydrochloric acid is passed in, avoiding excess, the mixture being then heated to 100 DEG  C. for 4 hours; ammonium chloride is filtered off, and the filtrate is distilled in vacuum at 100 DEG  C., the residue being lactic acid and lactide; by boiling with water and a little hydrochloric or sulphuric acid, this is converted into lactic acid.  Specification 257,907, [Class 2 (iii), Dyes &c.], is referred to.
Patent GB-521159-A (GB)
Title: Improvements in and relating to packs or decks of cards
IPC: A63F1/02
Filed: 1938-11-09
Abstract: 521,159. Card games. KRASS, N. Nov. 9, 1938, No. 32566. [Class 132 (ii)] A pack of cards for playing a card game in which forecasts may be made based upon the principles of the points pool system of forecasting the results of football matches consists of one or more suits each comprising cards marked with all the possible permutations of the three signs, 1, 2 and X, representing home win, away win and draw. Two such cards are shown in Figs. 8 and 9. The scoring values are also marked on the cards and further markings may be provided to distinguish the top from the bottom of the card. Each player is provided with a sheet, Fig. 28, whereon his forecasts may be entered. In playing a game, one player acts as banker, and four cards are dealt to each of the other players the remainder of the cards being drawn from as play proceeds. The players, by drawing and discarding cards endeavour to obtain cards corresponding to the results they have entered on their sheets.
Patent GB-626337-A (GB)
Title: Improvements in and relating to lamps for automobile and like vehicles
IPC: F21V7/00
Filed: 1947-11-03
Abstract: 626,337. Vehicle lamps; reflectors. NAPOLITANO, A. Nov. 3, 1947, No. 32583/46. [Classes 75(ii) and 75(iv)] In order to reduce dazzle a vehicle lamp is provided with a non- lenticular reflector 7 the lower half of which is formed as a series of steps, the treads of which are inclined downwards towards their forward limits, while the risers are inclined rearwardly from their upper to their lower edges so that rays from the lamp 2 are reflected downwardly thereby. The amount of upwardly directed light is also reduced by a small reflector 5 carried by a transverse member 4. Specification 217,280, [Class 75(ii)], is referred to.
Patent GB-1020912-A (GB)
Title: Improvements in the manufacture of multi-layer vessels
IPC: B21D26/06
Filed: 1962-08-24
Abstract: 1,020,912. Making hollow ware; Jointing by stamping; altering physical structure. FOSTER WHEELER Ltd. Aug. 24, 1962 [Aug. 24, 1961], No. 32611/62. Headings B3A, B3Q and B3Y. A method of treating an annular shell so as to expand the shell walls and alter the mechanical properties of the shell material in which the shell is filled with an energy transmitting medium and in which a shock wave is developed in the medium which is sufficient to strain the shell. A tube 22, Fig. 1 (not shown), seated on a rubber mat 11 is filled with water, an explosive charge container 12 is arranged along the shell axis by positioning members 18, 19 and fired via a detonating cap 14 by an energy source 16 to produce a high strain rate forming of the tube. A series of tubes are expanded by successive applications of the process into tight engagement with the outer layer(s) to form a multi-layer shell. The outer shell may be supported by a die and the ends of the multilayer shell machined prior to attaching end closures. The energy transmitting medium may be a gas, e.g. air, and the shock wave developing means a high-voltage spark or a mechanical device which produces a highimpact velocity. The individual tubes may be of the seamed type having longitudinally welded seams.
Patent GB-896845-A (GB)
Title: Composition and method for the treatment of glass fibres
IPC: C08K9/08
Filed: 1960-09-22
Abstract: A composition for treating glass fibres comprises an aqueous medium containing 0,6 to 1,0% by weight of vinyl tris betamethoxy ethoxy silane, 0,05 to 0,15% by weight of a glass fibre lubricant, 2,25 to 3,0% by weight of a polyvinyl acetate resin and sufficient of an acid to give a pH between 3,1 and 4,3.  The lubricant may be a proprietary amine/acid condensate such as tetraethylene pentamine/pelargonic acid condensate or tetraethylene pentamine/stearic acid condensate (both of which are made soluble by acetic acid) or a diamine of a coconut-oil fatty acid.  The usual acid used is hydrochloric acid. Examples are given and a comparison made between existing "dips" and the composition specified.ALSO:A size composition for coating glass fibres prior to laminating with polyester resins comprises an aqueous medium containing 0.6%-1.0% of vinyl tris(betamethoxyethoxy)silane, 0.05%-0.15% of a glass fibre lubricant, 2.25%-3.0% of a polyvinyl acetate resin and sufficient acid to give a pH between 3.1 and 4.3. The lubricant may be a proprietary amine/acid condensate such as tetraethylene pentamine/pelargonic acid condensate or tetraethylene pentamine/stearic acid condensate (both of which are solubilised by acetic acid) or a diamine of a coconut oil fatty acid.  The acid generally used is hydrochloric acid.
Patent GB-332841-A (GB)
Title: Improvements in electric accumulators
IPC: H01M10/04
Filed: 1929-10-28
Abstract: 332,841. Elsner, H. March 26, 1929, [Convention date]. Addition to 307,927. Electrodes.-Storage battery electrodes consist of corrugated sheets of insulating material with active material in the corrugations, the latter being formed to include more than half the circumference of a circle. The openings of the corrugations may be closed by strips of material 21, 22 as shown in Fig. 1, or the corrugations may be completely closed as shown in Fig. 3. The tubes formed by such closed corrugations may be made to touch one another and the electrode so formed may be used vertically as shown in Fig. 4. Within the corrugations are rods 9 carrying discs 19 which help to support the sheets. Conducting plates 24, 25 close the ends of the tubes and may be made integral with the rods 9. Positive plates of the above construction may be used with negative plates of the usual grid type.
Patent GB-144575-A (GB)
Title: Improvements in or relating to traps for rats, mice, stoats and like vermin
IPC: A01M23/24
Filed: 1919-12-31
Abstract: 144,575. Wilks, O. Dec. 31, 1919. Animal traps.-A trap for rats, mice, stoats, &c. comprises a casing a of baked clay &c, having an entrance aperture b, and a weight or dead-fall c moving freely within the casing, the casing and dead-fall being circular in horizontal cross-section. When the trap is set, the weight e is supported upon a catch h pivoted at g and having a retaining arm f. A hook j on this arm, which passes through an aperture d and holds the bait k within the trap, is released when the bait is removed. The aperture d is closed by a coil i. In another form of release, a bait hook pivoted to the arm f engages the lower edge of the, aperture d. In a modification, recesses p, Fig. 5, are formed in the weight c to receive the bait q, the weight having a projection r which rests upon one side wall of the casing a and a small lip s on the other side which is dislodged by the animal pulling at the bait. These projections may be formed integral with the weight e or from wire, as shown.
Patent GB-307410-A (GB)
Title: Improvements in lamp shades
IPC: F21V3/00
Filed: 1927-12-06
Abstract: 307,410. Pye, E., and Heale, S. J. Dec. 6, 1927. Globes.-A lamp globe comprises a substantially flat opaque interiorily-reflecting top part and a large uninterrupted body part of opal diffusing glass, the boundary line between the two parts extending around the largest diameter of the globe. The height of the top part is not more than one-sixth its diameter and not more than one-third the height of the body part. The top part may be made of clear glass which is silvered on the exterior or coated on the interior or exterior with a daylight-blue paint. The, body part may be formed from a clear lead-glass on which is superimposed a thin layer of opal glass with a slight daylight-blue or other tint. The top part 1 may be horizontal or may comprise a very obtuse truncated cone or convex bulge, and ie provided with a securing flange 4. The body part may be hemispherical or may comprise a tapering skirtlike portion continuing into a closed bottom 3.
Patent GB-208362-A (GB)
Title: Improvements in rotary or straight-bar knitting machines
IPC: D04B15/64
Filed: 1922-12-02
Abstract: 208,362. Cotton, Ltd., W., and Aldridge, C. H. Dec. 2, 1922. Straight-bar machines.-For producing a graduated width of splicing, such as an inverted V-shaped high spliced area at the back of the leg of a stock. ing, on Cotton's and other straightbar machines, a right and left hand screw D<4>, capable of being turned by a rack wheel D<7>, carries two nuts D<2>, D<3>, provided with stop fingers D', D<6>, which can be turned up out of the way or may engage stops C<4>, C<5>, on carrier rods C<2>, C<3>. The wheel D<7> is racked by a member D<10> to which is secured, by pin-and-slot connection, a part D<9> carrying ratchet teeth. The part D<9> when in the position shown in Fig. 3, is able to rack the wheel on a distance of two pegs D<8> and thereby increase the traverse of each carrier an amount equal to two needle spaces. If the part D<9> is lowered, the wheel is racked' each time a distance of one peg. The arm D<10> is put out of action by means of a spring E<3> acting on a lever which is normally held inoperative by a prop F, withdrawable by the action of the nut D<3> on a stop F<5> carried on a bar F<2> pivoted to the prop F.
Patent GB-521349-A (GB)
Title: Improvements in and relating to methods of and apparatus for flattening thin wires
IPC: H01J5/46
Filed: 1938-11-14
Abstract: 521,349. Making leading-in wires. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 14, 1938, No. 33076. Convention date, Nov. 13, 1937. [Classes 83 (ii), 83 (iii) and 83 (iv)] [Also in Group XXXVI] Before a leading-in wire is sealed into a vitreous body its end is reduced in crosssection and is then flattened to the desired thickness by repeated light blows. The wire 10, which may be of copper with a nickel coating, passes in succession through apparatus which effects straightening, scraping, feeding, flattening and severing. The operating periods of the various parts are controlled by cams on a shaft located below the table supporting the apparatus and, except for the feeding, operations occur with the wire at rest. Turning. The scraping knife 20, Fig. 2, is mounted on an arm 42 pivoted at one end on a stud 43 on a block 47 mounted on a pin 48 pivoted in a yoke 49 secured to a disc 53 mounted on a sleeve 61 carried in ball bearings 63 and rotated by a pulley 65. The other end of arm 42 is forked to engage a pin on a bellcrank lever 45 carrying a roller 67 engaging a cam 68 which reciprocates the knife. The knife is moved to and from the work by a cam 52 mounted on the pin 48 and carrying pins 51 engaging a collar 50 secured to the pin. A spring 81, Fig. 4, aided by centrifugal. force on the cam and the arm 42, tends to hold the knife away from the wire, but when lever 55 is raised the roller 54 engages the cam to move the knife to engage the work and the cam is held by latch 56 which is tripped later by movement of the lever 79. An adjustable roller stop cooperates with lever 42 to limit the depth of cut. The wire in the region of the knife passes over a pivoted gripping jaw 19 operated by a sliding wedge 25, a block 21, and gripping jaws (not shown) normally closed by a spring. The feeding device, Fig. 1, comprises a slide 85 grooved to receive the wire and reciprocated by an arm 86 mounted on a stud carrying the arm 89 which is actuated by rod 88. On movement from right to left the block 92 moves to clamp the wire in the groove but is moved to release it on return of the slide, during which time the jaws in the vicinity of the scraper grip the wire. Power hammers. The flattening apparatus comprises anvils 94, 95 with inserts of cemented tungsten carbide and normally held apart by a wedge 115 on a spring urged lever 117. The anvil 95 is mounted on a pneumatic hammer 98 which delivers 12-15 blows in “ sec. to flatten the wire to 0.0012 inches. The air valve 105 is operated by a bar 104 which also engages the lever 117 to withdraw the wedge. The wire is severed by a knife 120 co-operating with an apertured plate 122.
Patent GB-538636-A (GB)
Title: Improvements in and relating to apparatus employed in the heat treatment of projectiles and other metal articles
IPC: C21D9/00
Filed: 1939-12-30
Abstract: 538,636. Heat-treatment of metals. BRIDGES, W., and CHAMBERS, A. J. Dec. 30, 1939, No. 33035. [Class 51 (ii)] Metal articles, particularly armour piercing shells, are supported, during heat-treatment in a furnace, in a receptacle having a plurality of abutments at different, levels and carriers, for the articles, adapted to be received on the abutments one above the other in a tier and to be inserted and removed one after another through the top of the receptacle, each carrier in its movement to and from its rest position clearing all abutments located at a higher level. The dimensions and/or the configuration of the carriers and their respective abutments differ in such a manner that each carrier is capable of being supported only at its pre-determined level. The receptacle is formed of a plurality of guide bars 31 provided with central webs 31a directed radially inwards. At various heights are provided abutments 32a, 32b, 32c, 32d which project inwards in progressively increasing amounts downwards from the top. Each carrier 33 is provided with radial slots 34 in which the flanges or webs 31a of the bars 31 are received, and the carrier 33a rests on the abutments 32a, the carrier 33b on the abutment 32b and so on. The shells 14 are suspended from the undersides of the carriers which are provided with tapped holes 35 at suitably placed points, into which a screw-threaded projection, attached to each shell, may be screwed. The top ring of each carrier is provided with a lifting ring 37 screwed thereinto for the removal of the support from the heating or cooling bells &c.
Patent GB-391523-A (GB)
Title: Improvements in agitators for suction cleaners
IPC: A47L9/04
Filed: 1931-12-01
Abstract: 391,523. Vacuum cleaners. HOOVER, Ltd., 229, Regent Street, London.-(Hoover Co. ; North Canton, Ohio, U.S.A.). Dec. 1, 1931. No. 33258. [Classes 8 (i) and 99 (ii).] A beater of a vacuum cleaner is formed as a thin-walled one-piece twisted tube 2 of non- circular section ; the section may be a rectilinear or fluted polygon or an ellipse. The beater is driven by a pulley 5.
Patent GB-969411-A (GB)
Title: Improvements in or relating to footwear
Inventor: CAMPION JAMES REGINALD
IPC: A43B21/06
Filed: 1962-08-22
Abstract: 969,411. Shoe heels and soles. ASHFORD & CAMPION Ltd. Dec. 10, 1962 [Aug. 22, 1962], No. 32279/62. Heading A3B. A heel 1 has a recess 7 which receives and interlocks with a cooperating portion 8 of a sole 9. The interlocking portions may take other forms, e.g. a dovetail shape. The heel is of a one-piece moulded plastics or rubber construction and is provided with a hole or holes 2 extending from top to bottom and incorporating a cross-bar-and-boss construction 3, 4, the boss 4 being capable of receiving a screw or plug to assist the attachment of the heel and sole unit to a shoe by adhesive and/or nails. A piece of leather or rubber may then be attached to the bottom of the heel surface and finished flush therewith.
Patent GB-518957-A (GB)
Title: Improvements in vulcanizers, particularly for moulding tyres
IPC: B29D30/06
Filed: 1938-11-16
Abstract: 518,957. Control of motors. BRIDGE & CO., Ltd., D. (National Rubber Machinery Co.). Nov. 16, 1938, No. 33282. [Class 38 (iii)] [Also in Group V] Travelling to predetermined limits. - A vulcanizing press is closed and opened by a motor 67. Depression of " start button causes energisation of contacter coil F, this circuit. being maintained over contact W thereon and contact H on a cam-operated limit switch, and the motor stops when contact H opens. Closure of contact 1 causes a timer T to start, and at the end of its period it closes contacts 4, thereby re-energising coil F over contact 1, and causing the motor to run until the contact 1 opens. Should "open" button be depressed whilst the motor is closing the press, the coil F is de-energized and a reverse contactor coil R is energized and is maintained until the limit switch is returned to its inital position.
Patent GB-767161-A (GB)
Title: Improvements relating to combustion chambers for intermittently-operating combustiongas generators in particular for propulsion motors
Inventor: BERTIN JEAN HENRI
IPC: F02K7/06
Filed: 1954-11-17
Abstract: 767,161. Jet propulsion plant. SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Nov. 17, 1954 [Nov. 25, 1953], No. 33310/54. Class 110 (3). [Also in Group XII] A combustion gas generator comprises a plurality of intermittent combustion chambers with a sliding closure device adapted alternately to open and close the intake orifices of the chambers, and preferably also their discharge orifices, and a device for transferring into a filled chamber ready to be ignited, gases at a high temperature derived from a chamber in the course of combustion. The combustion chambers 1 in Figs. 1, 2 and 3 are arranged in circular formation and each comprises an inlet orifice 2 and a discharge nozzle 3. The inlet orifices are controlled by a rotating plate 5 in the shape of a figure 8, and the discharge orifices by a similarly shaped rotating plate 6, the two plates being mounted on a shaft 4. Assuming the plates 5 and 6 rotate in the direction F1 (see Fig. 2) at the instant shown, the two chambers al are beginning to discharge the combustion gases and also to fill with fresh air and the chambers a2 are fully scavenged and filled with fresh air. The chambers b1 are at the ignition phase and the chambers b2 are in full combustion. Fuel is admitted to the chambers through the injectors 7. Transfer ducts 8 are disposed on the plate 5 and serve to pass gases from a chamber such as b2 in full combustion to a chamber such as b1 which is ready to be ignited. The flow of gases in the duct 8 may be utilized to cause rotation of the discs 5 and 6. In Fig. 4, the group of combustion chambers 1 is disposed within a casing 10 and the discharge orifice of each chamber discharges into an ejector device 9. The ejectors discharge into a chamber 13 which may contain a reheat device. Reheat fuel may be supplied through injectors 14 at the upstream ends of the ejectors. In Fig. 5 and auxiliary duct 17 is disposed parallel to the discharge nozzle 3 and the hot gases pass from a chamber in full combustion through the duct 17 and through the transfer passage 8 disposed on the plate 6 to a chamber ready to be ignited. The apparatus shown in Figs. 1-3 is applicable either as a propulsion unit or for supplying a turbine.
Patent GB-423757-A (GB)
Title: Improvements in or relating to dropping tubes
IPC: B65D1/08
Filed: 1933-11-28
Abstract: 423,757. Drop - delivering bottles. PATEY, W. J., 15, Great St. Andrew's Street, Seven Dials, London.-(Rosengart, S.; 179, Avenue Victor Hugo, Paris) Nov. 28, 1933, No. 33339. [Class 125 (i)] [See also Group VI] A drop-delivering appliance, serving also as a storage container for liquid, consists of a rigid tube 1, of glass or synthetic resin, drawn out to a neck 2 terminating in a spherical bulb 3 having an aperture 4, and closed at the other end by a resilient diaphragm 7 formed with a collar 9 fitting within the tube. A rubber closure 5 fits over the bulb 3 when the appliance is not in use. According to the Provisional Specification, the edge of the diaphragm may grip the tube externally or a thicker diaphragm may fit within the tube, or a diaphragm may be dispensed with if the closed end or walls of the container are sufficiently flexible, and the closure member for the outlet may incorporate a valve and be left in place during use.