baber/WOPTO huggingface dataset:
Patent GB-1215764-A (GB)
Title: Improvements relating to heat exchangers
IPC: B21D53/08
Filed: 1968-04-11
Abstract: 1,215,764. Making heat exchangers; soldering. M. BEHR [trading as SUDDEUTSCHE KUHLERFABRIK JULIUS FR BEHR]. 11 April, 1968 [15 April, 1967], No. 17623/68. Headings B3A and B3R. [Also in Division F4] A heat exchanger e.g. for a motor vehicle comprises a number of pipes seamed longitudinally and a number of cooling fins or ribs soldered to the pipes by a coating of solder provided on each fin or rib prior to assembly of the exchanger, only at the connection area of each fin or rib. In an embodiment flat pipes seamed at 6 are arranged between corrugated fins 2 provided with solder, by dipping, only on the bends 3, 4 and the assembly is heated in an oven to melt the solder and join the fins to the pipes at 5. The end edges of the fins are sealed during the application of solder to the bends. In a modification flat cooling ribs are provided with tapered solder coated sleeves about apertures therein, and flat longitudinally seamed pipes are passed through the sleeves to be soldered therein when the assembly is heated in an oven. The known methods of, (a) providing tinned pipes with cooling ribs and heating to melt the tinning which solders the seams of the pipes and solders the pipes to the ribs and (b) providing tinned ribs on welded pipes and heating to effect the soldering of the ribs to the pipes by the melted tinning are referred to.
Patent GB-1525668-A (GB)
Title: Production of poly(1,4-butylene terephthalate)
IPC: C08G63/20
Filed: 1976-04-30
Abstract: 1525668 Polybutylene terephthalate polymerization GENERAL ELECTRIC CO 30 April 1976 [5 May 1975] 17644/76 Heading C3R (A) Thermal degradation of low M.W. poly- (1,4-butyleneterephthalate) is prevented by adding to the melt a minor amount of a compound (C) containing # 2 aliphatic or cycloaliphatic OH groups. (B). (P) may be polymerized to a higher M.W. polymer by meltblending with a minor amount of (C) and heating in vacuo. In examples, (C) is butane- 1,4 - diol, a poly(1,4 - butyleneterephthalate) having <10 repeating units, or pentaerithritol. Many other compounds (C) are listed. The polymerization may be performed at 245- 265 C. and 0À05-5 mm Hg.
Patent GB-934995-A (GB)
Title: Improvements in loudspeakers
Inventor: HUTCHINGS ERIC LIONEL
IPC: H04R9/04
Filed: 1961-05-16
Abstract: 934,995. Loud-speakers. GOODMANS INDUSTRIES Ltd. April 10, 1962 [May 16, 1961], No. 17792/61. Class 40 (4). In a moving-coil loud-speaker, the cone 3 is suspended by two parallel spaced centring devices in the form of a corrugated diaphragm, one 1 being attached to the exterior of the coil former 2, the other attached to the interior of the cone and screwed to a pillar 5 extending from the centre polepiece 6 of the magnet assembly, the edge of the cone being free.
Patent GB-284540-A (GB)
Title: An improved rapid steam generator
IPC: F22B27/16
Filed: 1927-07-06
Abstract: 284,540. Bunk, P. July 6, 1927. Instantaneous generators. -Water is sprayed into one end of longitudinal passages in a heated thick-walled tubular element 3, Figs. 1, 8, the passages 16 communicating at the other end with relatively narrow longitudinal passages 17 through which the steam generated flows to a collector 5. The element is arranged in a brickwork setting, and the heating gases after passing through the element are directed along its lower and upper surfaces by partition walls 8. The spraying nozzles 10, Fig. 2, are held in apertures in a cover 4 bolted on the front of the element. The cover is formed with deep annular grooves 13 which place the ends of the narrow passages in the element in communication with the steam collector. The annular grooves are connected to the collector by radial passages. The back cover 19, Fig. 5, is formed with wide recesses 21 placing the passages 16, 17 in the element in communication with one another. The ends of the passages 16 may be closed by plugs 22. Specification 171,735 is referred to.
Patent GB-1510535-A (GB)
Title: Electric cables
IPC: H01B13/24
Filed: 1975-04-30
Abstract: 1510535 Extruded multiple layer sheath GENERAL CABLE CORP 30 April 1975 [1 May 1974] 17986/75 Heading B5A [Also in Division H1] A cable core 22 is provided with an extruded dielectric wall of plastics insulating material which is of increased voltage breakdown stress, by applying the wall upstream of the extrusion outlet of a die head 12, as a plurality of circumferentially continuous and successively applied layers, e.g. of the same material and thickness which are fused together with substantially no voids between adjacent layers, and which are each of a thickness less than a quarter of the overall thickness of the wall. The die head 12 comprises an extrusion passage 27 for the material which is divided into a plurality of passages for forming the layers, by a plurality of sleeves 28, of which successive radially outer sleeves 28 have downstream ends which terminate successively between the downstream end of a bore 20, through which the core 22 passes, and the extrusion outlet. The sleeves 28 are preferably of sheet metal and are located in the die and against relative rotation, by circumferentially spaced and radially extending fins 30 which are preferably welded to a surface, e.g. the outer surface of the sleeves 28, and engage in grooves in the adjacent sleeve 28 and the die 14 and point 16. The material may comprise cross-linked polyethylene, or polypropylene or ethylene-propylene rubber. Preferably, at least six layers are provided, and each layer is of 1À3 mm. thickness.
Patent GB-248997-A (GB)
Title: Improvements in and relating to core breakers for mining machines
IPC: E21C35/193
Filed: 1925-07-14
Abstract: 248,997. Sowman, N. K. July 14, 1925. Coal-cutting machines. - Interposed in the cutter chain of a coal-cutting machine are one or more links carrying means acting with a pounding action to chip away cores of hard material left by the ordinary cutters. As shown, frusto-conical burrs 14 with teeth 21 are provided with spring-pressed shanks 15 and are rotatably held in the links by bolts 18. Preferably two equally-spaced burr-carrying links are provided in the chain, the burrs being laterally offset in such a manner as to cover the whole depth of the cut.
Patent GB-1304470-A (GB)
IPC: G02B15/14
Filed: 1971-05-28
Abstract: 1304470 Zoom lenses JOS SCHNEIDER & CO OPTISCHE WERKE 28 May 1971 [1 July 1970] 18043/71 Heading G2J An objective with variable focal length comprises a basic system V of positive refractive power, and a variable focal length part disposed in front of the basic system and having four parts I, II, m and IV, I and IV being positive and II and m being negative and movable to produce the zoom. The focal length of IV is 75% or less than 75% of that of I, and the focal length of III is greater by at least 10% than that of II. I has three positive lenses preceded by a negative lens; II has two negative doublets; III is a negative lens and IV is a positive lens. Optical data are given for the example shown, where P is a prism e.g. for a view-finder.
Patent GB-572684-A (GB)
Title: Improvements in lifting jacks
IPC: B66F3/20
Filed: 1943-11-02
Abstract: 572,684. Lifting-jacks. LAWTON, F. Nov. 2, 1943, No. 18086. [Class 78 (iii)] In jacks of the type in which an electric motor drives gearing for raising the threaded spindle, the rotor of the motor is mounted on a hollow spindle mounted in the base frame, the stator is fixed to the base frame and the threaded spindle is housed in the hollow spindle. The rotor 5 of an electric motor is rotatably mounted on a tube 4 which is supported by the top plate 2 and bottom 3 of a casing 1. The tubular spindle 7 of the motor carries a gear 8 which drives a coaxial gear 11 through gears 9, 10 mounted on a shaft 12. The gear 11 has a central threaded bore which engages a screwed spindle 14 carrying a loadengaging member 15. The spindle 14 is housed in the tube 4 and is formed with a groove for engaging a key on the casing. The upward movement of the spindle may be limited by opening a switch in the motor circuit at a predetermined point. This switch 19, Fig. 2, is actuated by a rod 16 disposed in a recess 16a in the spindle 14 and having a head 17 which is engaged by projections 18 on the spindle at the desired extension. In a modification the end of the spindle may be arranged to raise the gear 11 and thereby cause slipping of a clutch through which the drive from the gear 9 is transmitted.
Patent GB-905670-A (GB)
Title: Improvements in portable power-tool equipment
Inventor: GOODMAN WILLIAM HAROLD JAMES
IPC: B24B27/00
Filed: 1959-05-28
Abstract: 905,670. Drilling-machine details; lathes. REVO ELECTRIC CO. Ltd. May 20, 1960 [May 28, 1959], No. 18177/59. Class 83 (3). [Also in Group XXIII] A support assembly adapted for a portable lathe or drilling machine of the kind in which a power-driven hand-tool acts as the driving unit, comprises a support member and a base member hinged together. The base-plate 10, Figs. 1 and 2, is adapted to be secured to a base-board by screws 13. A support member 11 is hinged at 14 to the base-plate and may occupy an upright position, Fig. 1, or nest into the base-plate, Fig. 2. In the latter position a clamping device 20 secures the support member. A bracket 12 is carried by the support member and may be swivelled thereon and secured in position by a clamp nut 15. A socket 17 in the bracket is adapted to hold one end of an elongated member 18 which in the horizontal positions, Fig. 1, serves as a bed for a lathe or grinding machine and when in the vertical position, Fig. 2, serves as a column for a drilling machine. Specification 873,867 is referred to.
Patent GB-299591-A (GB)
Title: Improvements in and relating to galvanic cells
IPC: H01M4/02
Filed: 1927-07-08
Abstract: 299,591. P÷rscke, P. July 8, 1927. Cases; cells; connections; electrodes; gas exits.-Porous electrodes are made bv mixing metals and metallic oxides with an acid or base so that local galvanic action occurs whereby one or more of the constituents separate out leaving a porous remainder. For example 100 parts of cobalt oxide are mixed with 40 parts of zinc powder and 10 parts by weight of a 40 per cent solution of caustic soda are added while stirring. The mass is spread on a perforated metal supporting plate and heated to 70‹ C. for 10 hours. Powdered metal not affected by the above process may be added to the material to increase conductivity. The supporting plate may be corrugated or plain, and the perforations may have. burred edges, or expanded metal may be used. Fig. 2 shows the mass 26 on a plate 27 with lugs 28 adapted to pass through slots in frame members 30 and be bent over. Lugs 29 are also provided for connections. Instead of being applied to supporting plates the material may be moulded to suitable forms, such as a helix of square, circular, channelled, or other cross-section. Fig. 11 shows strip material with the faces of the strip parallel to the axis of the helix. The faces may be perpendicular or inclined to the axis. A number of plates may be combined to form an electrode Fig. 7 shows in plan plates having lugs 33 inserted in slots in transverse supports 35 and clamped by bolts 37. In assembling electrodes to form a cell or battery, Figs. 9, 10, one set of electrodes 41 is supported by rods' 46 passing through and secured to the cover 47, and the other set 26 issupported by a frame 43 between pacliing rings 48 and clamped between the cover 47 and the rim of the cell 38 by clips 51 engaging an undercut flange on the cell and a depression in the cover. The electrode supports may have terminals 55 and one or both of the clips may have terminals 53, the necessary connections being made by conductor 54. As an alternative the electrodes carried by the lid may have blade connectors 75 engaging slots in connecting posts 76 of the electrodes carried by the frame. The lid may have a thin portion 56 which can be perforated by a pin to provide a gas exit. The Specification also describes various forms of metal cells and cases enamelled inside and out. Posts 61 may be provided upstanding from the bottoms of the cells or from plates secured therein by enamel, the posts being enamelled except at their upper ends which are threaded, to serve as supports for electrodes and as conductors. In assembling cells to form a battery a number of cells 58, 59, 60, seen in plan, Fig. 20, may be connected by channel clips 63 embracing flanges on the cells, the spaces between being filled with enamel. Alternatively, a number of enamelled cells may be assembled in an enamelled case, and secured therein by enamel poured into the spaces between cells and case, and then stoved.
Patent GB-716934-A (GB)
Title: Process for preparing refined sugar syrups from fruit
IPC: C13B20/02
Filed: 1952-07-18
Abstract: Refined sugar syrups from fruit, e.g. apples, pears, plums, damsons, cherries, figs, dates, grapes, pineapples, bananas, carob beans are obtained by liming a juice obtained in known manner from the fruit to a pH of 9 to 10 and passing the defecated solution after separation from the precipitate by mechanical means through a system of four filters arranged in series, the first filter containing a sulphonated cation exchange resin, e.g. a sulphonated polystyrene resin, the second filter containing a weakly basic amine anion exchange resin, e.g. a polyamine phenol formaldehyde resin, the third filter containing a strongly basic amine anion exchange resin preferably of the quaternary ammonium type and the fourth filter containing a cation exchange resin similar to that contained in the first filter, and the thereby purified thin juice, adjusted to a pH between about 6 and 7 in the fourth filter, is subsequently evaporated in a vacuum pan to a refined sugar syrup of the desired concentration.  In an Example a juice containing about 8-10 per cent sugar obtained by pressing pears was treated with lime up to a pH of 9.5 and by decanting the liquid and filtration a defecated solution was obtained which was supplied to a four-step cation-anion anioncation exchange system, the first filter containing a sulphonated polystyrene cation exchange resin from which the effluent was a dark brown solution with a pH of less than 2.5, the second filter containing a weakly basic phenol formaldehyde polyamine anion exchange resin from which the effluent was an impure yellow solution with a weak alkaline reaction, the third filter containing a strongly basic salt-splitting anion exchange resin from which the effluent by reason of the splitting of organic salts and the selective adsorption of colouring matter was a colourless and odourless solution, the fourth filter containing the same cation exchange resin as filter 1 from which a completely purified solution adjusted to the desired pH value between 6 and 7 was obtained which was evaporated in a vacuum pan to about 40 DEG B<\>ae.
Patent GB-376478-A (GB)
Title: Improvements in or relating to electric current transformers and electric current measuring means
IPC: H01F38/30
Filed: 1931-06-24
Abstract: 376,478. Current transformers. ELLIOTT BROS. (LONDON), Ltd., Century Works, Lewisham, London, and SHOTTER, G. F., 14, The Ridgeway, Friern Barnet, Middlesex. June 24, 1931, No. 18263. [Class 38 (ii).] Relates to current transformers of the type in which a gap 5 is provided in the core 1 which is further adapted to straddle the bus-bar or other conductor 7 carrying the current to be measured, and consists in arranging the secondary winding (preferably in two halves 3) adjacent the gap in such position as to be unaffected by external flux due to current in adjacent conductors 9, 11. The core may be divided into two hingedly-connected halves as described in Specification 327,837, [Class 38 (ii), Electric currents, Converting &c.], and may be provided with screw-adjustable stop means for varying the length of the air gap. Fig. 4 shows a form employing a hinged core and having the secondary winding parts 53 arranged in pole elements 51 at the hinged end of the core. The hinge elements are formed by non-magnetic members 55. A small adjustable gap may be formed at the junction 49.
Patent GB-569180-A (GB)
Title: Improvements in ovens through which articles to be heat-treated are continuously passed
IPC: F27D7/00
Filed: 1943-11-04
Abstract: 569,180. Tunnel furnaces. AINSWORTH, A. Nov. 4, 1943, No. 18271. [Class 51 (ii)] In a continuous tunnel furnace A having heating and cooling sections a<3>, a<2>, the cooling is effected by air or gas supplied by a fan C to . horizontal pipes e, e<1> lining the roof and walls of the cooling section, the gas thus heated being utilized to augment the heating by burners B in the zone a<3> by passage through a further series of pipes e<2> which discharge into a saddleshaped header D<2> communicating with an uptake e<3> leading to atmosphere. A central header D<1> connects the adjacent ends of the pipe e, e<1> and e<2> and a further similar header D distributes the air or gas supplied by the fan C to the pipes e, e<1>.
Patent GB-186443-A (GB)
Title: Apparatus and process for operating an internal combustion engine
IPC: F02B43/10
Filed: 1921-07-06
Abstract: 186,443. Barnes, R. July 6, 1921. Charge, moistening; cylinders, liners, valve chests, and relief valves for; non-compression engines; materials, actuating. - Hydrogen and oxygen stored in two reservoirs pass through simultaneously-controlled valves and pipes 50 into a chamber 45 partly filled with water. The mixture passes through the port 46 and a pipe to the valve-controlled, engine inlet port. The top of the chamber is closed by a spring-held cap 60, and non-return valves 52 are placed in the pipes 50, so that damage from back ignition is prevented. The mixture is ignited by a spark-plug and to prevent formation of a vacuum at the end of the expansion stroke, a non-return relief valve 35<a>, Fig. 3, admits air. The top of the cylinder is grooved as at 36 to act as a drain for any water which may be formed; the groove is deepest at the exhaust outlet, water formed passing out through the exhaust. The cylinder is coated with zinc.
Patent GB-385226-A (GB)
Title: Improvements in method of decorating metal objects
IPC: B44C1/175
Filed: 1932-06-29
Abstract: 385,226. Transferring designs. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Meyercord Co. ; 120, South La Salle Street, Chicago, U.S.A.) June 29, 1932, No. 18398. [Class 100 (ii).] A metal object which is subsequently to be worked up into a desired shape is ornamented by applying thereto a ground coat of the required colour, imposing a lithographed design supported on a gummed paper backing together with a substance acting to render the ground coating tacky, yielding, or plastic, pressing the design against the ground coat, removing the backing, and finally baking. The ground coating is preferably composed of a varnish prepared by grinding synthetic gums, synthetic resin, or pyroxylin in oils, and is rendered plastic by a liquid composed of ethyl lactate, ethylene chlorohydrin, ethyl alcohol, and water, or methyl alcohol, ethylene monoethyl ether, and water. The transfer is then applied and pressed flat, preferably by means of rollers, and the product is then dried, the paper backing removed, and any gum on the colour film washed away. The object is then baked and subsequently treated to produce the desired shape. The transfers may be employed in strip form, and be drawn from a roll through the liquid before application to the object.
Patent GB-342242-A (GB)
Title: Improvements in processes for the adsorption of gases
IPC: B01D53/04
Filed: 1930-06-16
Abstract: The separation of the less volatile constituents of a gas mixture by adsorption is carried out under pressure, and the gas after treatment is cooled by expansion and utilized in a heat exchanger to cool the compressed gas before treatment.
Patent GB-111925-A (GB)
Title: Improvements in or relating to Current Saving Devices for Electric Welding.
Inventor: ROULLAND CHARLES
IPC: H01F29/02
Filed: 1916-12-22
Abstract: 111,925. Roulland, C. Dec. 22, 1916. Heating by electricity.- In electric welding, the voltage is maintained constant by adjusting the number of active turns in the primary or secondary of a transformer a. An adjustable non-inductive resisttance b is arranged in series with the secondary. The switchboard for the resistance and winding switches and measuring instruments and the resistance grids may be carried on the transformer.
Patent GB-694442-A (GB)
Title: Improvements in reciprocating pumps
IPC: F04B49/12
Filed: 1950-07-24
Abstract: 694,442. Reciprocating pumps. GOODENOUGH. F. G., and HORNER, W. A. May 28, 1951 [July 24, 1950], No. 18446/50. Class 102 (i). The plunger rod 5 of a pump is connected to a sleeve 12 through a spring coupling housed within the sleeve so that a predetermined stroke of the sleeve results in a variable stroke of the plunger according to the delivery head. The enlarged head 9 of the plunger rod is guided in a bush 11 attached to the sleeve 12 and cylindrical nut 8 is threaded on the plunger rod and guided in a bush 10 retained in position in the sleeve 12 by a flanged nut 14. Two thimbles 16, 17 surround the plunger rod and bear through washers 18, 19 on the enlargement 9 and bush 11 and also the nut 8 and bush 10; a compressed spring is placed between the thimbles. The sleeve 12 may be reciprocated by a crank pin 20.
Patent GB-129731-A (GB)
Title: Improvements in or relating to Ordnance Firing Mechanism.
IPC: F41A19/36
Filed: 1916-12-15
Abstract: 129,731. Vickers, Ltd., and North, T. R. Dec. 15, 1916. Ordnance breech mechanism.-Relates to firing- mechanism of the kind in which the striker is held cocked by the engagement of a movable sear carried by the striker with part of the breech-block. According to the invention, the striker G, which is arranged within the breech-block B, projects rearwards beyond the breech-block, and the projecting part carries the movable sear G<2>, which bears against a rearwardly-extending projection g<2> of the breech-block to bold the striker cocked. The breech mechanism shown is described in Specification 126,327. The firing-pin G is guided in the breech-block by curved guides g<1x> fitting into corresponding slots in the breech-block, and is cocked by the rearward movement of the sleeve D when the breech is opened, the sleeve D then bearing on a head g<1> on the firing-pin. A firing- lever H is pivoted to a sleeve a<2x> which recoils with the gun barrel; and this lever is pressed up to displace the sear for firing the gun, by means of a rod K provided with a button k<1> near the handle A<2x>, A roller h at the outer end of the firing-lever H comes opposite the sear G<2> and can only actuate it when the breech is fully closed and a notch g<x> in the cocking-head g<1> is thus brought in line with the roller h. Another roller h<1> on the firing-lever H bears against the conical end of the firing-rod K and rides along a longitudinal groove K<1> in that rod without deflecting the firing-lever when the barrel recoils. When, however, the firing-rod is pushed in, a spiral slot K<2> in the rod co-acts with a fixed pin to rotate the rod and bring the groove K<1> out of line with the roller h<1>, which is then wedged aside by the conical tip k of the rod, thereby causing the release of the firing-pin. The firing-rod K is held at safe by a pivotal catch L.
Patent GB-190685-A (GB)
Title: Improvements in and relating to boots and shoes
IPC: A43B23/22
Filed: 1922-07-05
Abstract: 190,685. Baucutt, W. L., Betteley, E., Walker, H., and Sharp, T. F., (trading as Everett & Co.). July 5, 1922. Stiffeners.-In a device for preventing the forcing of the waist of a shoe upwards under the wear of a wooden heel, a metal plate a on the sole has its inner end pointed for insertion into the heel and provided with a perforation a<1> for the passage of a nail. Positioning lugs b may be provided, as shown.