baber/WOPTO huggingface dataset:
Patent GB-556707-A (GB)
Title: Improvements in or relating to drainage and sewerage systems and pipes therefor
IPC: E02B11/00
Filed: 1942-04-07
Abstract: 556,707. Drainage or sewerage pipes. WHITTAKER D. April 7, 1942, No. 4556. [Class 33] [Also in Group XXVIII] Drainage or sewerage pipes are constructed so that they are parallel externally but internally tapered so that they are larger in size internally at one end than the other and the taper extends continuously from the larger to the smaller end of the pipe so that when the pipes are laid in line as shown in Fig. 2, the diameter 3 at one end is larger than the diameter 4 at the other end thus forming a depression in which is formed a pool 5 of liquid or moisture. The pipes may be laid as in Fig. 3 with the ends 3 adjacent each other and also the ends 4 so that a larger pool 8 is formed. The pipes may be plain ended as shown or may have a pocket at one end for jointing or may have spigot and pocket ends or be flanged for jointing.
Patent GB-470420-A (GB)
Title: Improvements in or relating to shot-gun cartridges
IPC: F42B7/04
Filed: 1936-02-14
Abstract: 470,420. Ammunition cartridges. EDWARDS, W. Feb. 14, 1936, No. 4577. [Class 9 (i)] The shot in a cartridge is contained within a cylindrical cup or shell 15, the closed end of which 16, is remote from the base of the cartridge and is dished and has one or more apertures 17, in the form of circular holes or diametral slots. A thin disc 18 is inserted between the closed end of the cup and the shot, and the side wall of the cup, which may be ribbed or corrugated, is slotted longitudinally, as at 23, Fig. 6, from the rim. The closed end of the cup may also be formed with annular grooves or corrugations. Specification 389,211 is referred to.
Patent GB-486804-A (GB)
Title: Improvements in or relating to junction boxes for use with wiring-in conduits, electric switches and other electrical accessories and as looping-in and inspection boxes
IPC: H02B1/42
Filed: 1937-02-16
Abstract: 486,804. Switch bases and covers. BELL & CO., Ltd., C. H., and COLLISON, G. W. Feb. 16, 1937, No. 4635. [Class 38 (v)] [Also in Group XXXVI] In a rectangular junction box the lid 2 is provided with a bridge piece 7 adapted to be secured to a bush 5 in the back of the box by a screw 6, the bridge piece serving to receive a switch. In a modification, Fig. 14, the bridge consists of a plate 7 mounted on screws 7x to enable its distance from the lid 2 to be adjusted. The lid 2 extends beyond the walls of the box 1 and the screw 6 is a loose fit in the bridge so that the box may be mounted in a tilted position as shown and the cover and accessory adjusted rotatably. An auxiliary lid 12 is provided to cover the switch base.
Patent GB-189386-A (GB)
Title: Improvements in and relating to tobacco pipes
IPC: A24F1/00
Filed: 1922-02-17
Abstract: 189,386. Elkan, B., and Bewlay & Co., Ltd. Feb. 17, 1922. Tobacco pipes. - The spigot d of the mouth-piece c fits an enlarged portion of the bore of the stem b, and is protected from injurious heating effects by a metal tube e having a flanged head e<1> of conical, hemispherical, or other shape. The tube e and the spigot d may be slotted to permit the employment of the twisted core described in Specification 167,103.
Patent GB-414590-A (GB)
Title: Improved machine for testing the strength and hardness of metals
IPC: G01N3/10
Filed: 1934-02-13
Abstract: 414,590. Testing physical qualities of materials. ARTHUIS, A. R., 20, Rue Boulard, Paris. Feb. 13, 1934, No. 4757. Convention date, Feb. 13, 1933, [Class 106 (ii).] Comprises an in part mechanical and in part hydraulic machine for testing strength and hardness. For a tensile test, the specimen is placed between grips carried by a screw F and by a table mounted on a ram D. By turning a handle a nut N is rotated through worm gear to move the screw F upwards. The ram and table D move upwards against the influence of coiled springs E and fluid is drawn into the cylinder A from a tank B via an open cock in a pipe T. An index J moves over a scale I to give the force exerted in overcoming the springs. For an indentation hardness test, the specimen is placed on the table and the cock in the pipe T closed. An indentor carried by the screw is then moved down to engage the specimen. A pump C is now operated to pump fluid into the cylinder A through the conduit K and raise the ram. The ram may be raised by pressure fluid admitted to the cylinder.
Patent GB-396820-A (GB)
Title: Improvements in and relating to the electrolytic production of magnesium
IPC: C25C3/04
Filed: 1932-02-17
Abstract: 396,820. Electrolytic production of magnesium. JOHNSON, MATTHEY, & CO., Ltd., 78, Hatton Garden, London.- (Assignees of Soc. de Produits Chimiques des Terres Rares ; 67, Rue de' Prony, Paris.) Feb. 17, 1932, No. 4762. Convention date, Feb. 17, 1931. [Class 41.] In obtaining magnesium by electrolysis of fused magnesium chloride, a submerged iron cathode 3 is employed and is cooled, for example by an external projection 2, to such a degree that the temperature of the molten metal rising from it is only slightly above its melting point. The projection 2 may be enclosed within a flue through which a current of air is passed. The cathode may be introduced through the side of the cell instead of the base. Cooling may be regulated by a thermo-couple, preferably attached by its sheath to the cathode. The metal collects between partitions 4 and is withdrawn by an iron pipe which, with any other metal accessories, is thermally connected to the cathode.
Patent GB-575376-A (GB)
Title: Improvements in pulverisers
IPC: B02C15/00
Filed: 1944-03-15
Abstract: 575,376. Ball - and - ring mills. BABCOCK & WILCOX, Ltd. March 15, 1944, No. 4804. Convention date, April 1, 1943. [Class 59] In a ball-and-ring mill for pulverising coal &c. of the kind described in Specification 523,753 and comprising fixed and rotary upper and lower grinding rings 21, 19 separated by an intermediate circular row of balls 20, the pulverised material being removed from the grinding zone by an upward stream of air supplied from a wind-box 32 which is eccentrically arranged to ensure uniform distribution to the annular throat 34, a constant air velocity through the throat is obtained by subdividing the latter, by equally spaced lugs 50 of tapered form as shown in Figs. 3 and 4 into a number of passages 51 of substantially uniform crosssection throughout their height. The lugs 50 are inclined as shown to increase the length of the passages 51 and to give the ascending air a component of motion in the direction of movement of the adjacent part of the rotary grinding ring 19. A portion of the ring 35 forming the throat is formed by a pivoted. relief gate 36 which swings outwardly to permit the passage of large pieces of unpulverised or foreign material, while particles of excessive size or density falling through the throat 34 pass through an opening 41 controlled by a gate 42 into a collecting chamber 40 from which they are removed through door 44.
Patent GB-858774-A (GB)
Title: An apparatus for the heat treatment of granular solid material
IPC: F25D25/04
Filed: 1958-02-13
Abstract: 858,774. Preheating cement raw materials. SUISLAVIA HANDELS A.G. Feb. 13, 1958 [Feb. 3, 1957], No. 4809/58. Class 51 (2). [Also in Groups XIII and XXX] Material, such as grain or cement, to be heated, e.g, for drying, passes from an inlet 6 to a screen 5 which spreads it thinly in three ducts 4 which may be of circular or U-section, or rectangular as shown. The ducts are fixed helically, e.g. stepped, around a vertical hollow shaft 2, which by means of a hollow cone 20, bearing the screen 5 and a cylinder 21, is mounted on bearings 3 so that these parts can be swung slowly forwards about the vertical axis of the shaft 2 by the action of an arm 27 secured to a rotating vertical shaft and contacting periodically a roller on one limb of a lever 13 secured to the cylinder 21. A spring 14 attached to the other limb of the lever 13 swings the parts quickly back against a stop when the arm 27 disengages the roller. The material is thus moved intermittently down the helical ducts 4. It may be arranged that the angle of swing is up to 360 degrees. Lower portions of the ducts, on a hollow shaft 22, are joined to the upper portions by elastic duct pieces 24 and are secured to a shaft 25 which passes through the shaft 2 and is mounted on a bearing 23 and has a lever 13<SP>1</SP> for receiving a reciprocating swing motion like that of the upper portions of the ducts 4. Packing is provided between the ducts 4 and a fixed cylindrical casing 1 in which they are mounted. The bottom 9 of the casing is sealed from the spaces between the ducts and has a closable outlet 10 for the treated material. Apart from openings at the top and bottom of the apparatus, the ducts are closed although there may be apertures 17, 18 in the shaft 22 near the bottom and fine apertures 28 in at least part of the bottom walls of the ducts. The heating gas enters the casing 1 through an inlet 8, to flow over the ducts 4 in the spaces between them and pass to an upper outlet 7 to be returned to the apparatus in which the gas is heated or to be partly mixed with the gas entering at 8. If the apertures 17, 18 are provided, some of the gas passes into the shaft 22 and from there into the ducts 4 to contact the material directly. The pressure of the heating gas in the casing 1 prevents the material passing out of the ducts 4 through the fine apertures 28. There are pipes 11 in the bottom 9 which introduce cold air, or some of the fresh heating gas (possibly mixed with cold air), or discharged heating gas from the outlet 7, to pass up through the ducts 4, over the material therein, to an outlet pipe 12 together with any gases from the material. Gases from the pipe 12 may be mixed with the heating gas which enters through the inlet 8 or they may be used to heat the combustion air of apparatus in which that gas is heated. There are valves for determining the mixing of fresh gas and discharged gas.
Patent GB-633299-A (GB)
Title: Improvements relating to electric fuse holders and contacts therefor
IPC: H01H85/143
Filed: 1948-02-19
Abstract: 633,299. Fusible cut-outs. PARSONS, Ltd., C. H., and HANDLEY, G. B. Feb. 19, 1948, No. 4878. [Class 38 (i)] A contact for a cartridge fuse bridge-carrier is formed from a blank 10 having extending blades 11 joined by an attachment yoke 12 to one side of which extend two wings 13 which are separated at 14, 15 from the yoke 12. The blades 11 are bent to face each other and the wings 13 are formed part-circular to receive a fuse contact, Fig. 5, the yoke 12 being flattened to serve as a point of attachment to the bridge-carrier. The wings 13 may be reinforced by a part-circular spring clip (Figs. 6, 7, not shown). A hole is provided in the carrier so that the fuse may be easily ejected (Fig. 8, not shown). The size of the blades 11 and the spacing of the cooperating contacts on a fuse board may be varied according to the fuse rating.
Patent GB-785024-A (GB)
Title: Composition for eliminating minor element deficiencies in plant growing media
IPC: C05D9/02
Filed: 1954-02-19
Abstract: The invention comprises metal complexes of amino-acids of the formula: <FORM:0785024/IV (a)/1> or <FORM:0785024/IV (a)/2> where M is a trivalent metal atom (other than cobalt), B is a divalent metal atom which forms a chelate of lower stability than does M, R is the ion from carboxymethyl or b -hydroxyethyl, Y is alkylene or cycloalkylene interposing two or three carbon atoms between the two nitrogen atoms and x is - 4.  These are made by forming the trivalent metal chelate of the acid and reacting it with a compound of the divalent metal or vice versa.  The pH of the mixture determines which of the above formul  represents the complex obtained.  Specified salts are the Ca-ferric, Ca-Co, Ca-Al, Ca-manganic, Zn-Al and manganous-ferric salts of ethylenediamine tetraacetic acid and the Ca-ferric, Zn-ferric and manganous-ferric salts of N-(b -hydroxyethyl)-ethylenediamine triacetic acid.  Y may also be propylene, trimethylene, isobutylene or cyclohexylene and B may also be magnesium, strontium, barium, cadmium, copper, lead, iron, cobalt or nickel.ALSO:Compositions to be added to the soil to correct trace-metal deficiencies comprise a compound of the formula: <FORM:0785024/I/1> or <FORM:0785024/I/2> in a carrier, where M is a trivalent metal atom (other than cobalt), B is a divalent metal atom which forms a chelate of lower stability than does M, R is the ion from carboxymethyl or b -hydroxyethyl, Y is alkylene or cycloalkylene interposing two or three carbon atoms between the two nitrogen atoms and x is -4. Suitable carriers are sand, clay, vermiculite, lime, limestone, compost, fertilizers and resinous materials such as polyacrylonitrile soil conditioners.  Specified salts are the Ca-ferric, Ca-Cr, Ca-Al, Ca-manganic, Zn-Al and manganous-ferric salts of ethylenediamine tetraacetic acid and the Ca-ferric, Zn-ferric and manganous-ferric salts of N-(b -hydroxyethyl)-ethylenediamine triacetic acid.  The divalent metal may also be magnesium, strontium, barium, cadmium, copper, lead, iron, cobalt or nickel.
Patent GB-373615-A (GB)
Title: Improvements in and relating to tar, steam, or like, spraying nozzles
IPC: B05B15/65
Filed: 1931-02-17
Abstract: 373,615. Nozzles. CROWTHER, N., Grattan Road Works, Bradford, Yorkshire. Feb. 17, 1931, No. 4939. [Class 69 (iii).] Tar, steam, &c. nozzle fittings of the kind comprising concentric flexible metal tubes B, B\ Fig. 3, leading to a fitting A<2> are provided with a handle portion T, Fig. 3, comprising an additional concentric flexible tube. In order to prevent leakage at the joints the nozzle fitting A<2> is connected to the tube T by a stuffing-box A provided with a union nut N, while the other end of the handle T is secured to the pipe B by a gland G, Fig. 2, forced between the pipes B, T by a nut G<2>, packing rings P being provided to prevent leakage.
Patent GB-1303263-A (GB)
IPC: H01C10/46
Filed: 1970-02-02
Abstract: 1303263 Mechanical switches; contacts NIPPON KOGAKU KK 2 Feb 1970 [31 Jan 1969] 4950/70 Heading H1N In a variable resistor comprising a series of tap electrodes 4<SP>1</SP>, 4a<SP>1</SP>, 4a<SP>11</SP>, Fig. 6, in the path of a movable contact J, Fig. 2, each is connected to a strip resistance layer 7 connected by conductors 5a, 5a<SP>11</SP>, &c. on either side. In the example of Fig. 2, the variable resistance according to the invention lies in an arcuate region Q, Fig. 2, between a logarithmic wedgeshaped resistor 6 with taps 4 in region P and a zig-zag resistor in the region R, the latter having two strip resistors 7<SP>1</SP> for each tap electrode 4<SP>11</SP> and interconnected by conductors 5<SP>1</SP>. In the example the resistors, taps and conductors are formed by vacuum deposition. Details are given of a method for determining the spacing of the conductors 5, &c. whereby they overlap the resistor strips 7 to permit large tolerances in the circumferential positioning of the layers.
Patent GB-804595-A (GB)
Title: Improvements in the thermal cracking of liquid hydrocarbons
IPC: C10G9/00
Filed: 1956-02-17
Abstract: <PICT:0804595/IV (b)/1> In a process for producing combustible gases by incomplete combustion of a liquid fuel the fuel supplied at 5 and oxygen or oxygen-containing gas, e.g. air at 4 are admitted through nozzle 3 to a bell-shaped reaction chamber 2 immersed in a body of the liquid hydrocarbon in a container 1 so that the gases produced are quenched by contact with the liquid hydrocarbon in passing to the outlet 8.  The oil in the container 1 is pumped by a pump 6 to the oil inlet 5.  Steam may be added to the oxygen or oxygen-containing gas and the process may be operated at reduced or increased pressure. In an example a gas having the following composition was obtained: H2S 0.1 per cent, CO2 7.3 per cent, C2H2 6.1 per cent, C2H4 4.7 per cent, C3-C4 olefines 2.0 per cent, C1-C4 paraffins 9.0 per cent, CO 42.8 per cent, H2 28.1 per cent.
Patent GB-1281641-A (GB)
Title: Improvements in weighing apparatus
IPC: G01G3/145
Filed: 1970-02-02
Abstract: 1281641 Weighing electrically: voltage measuring WEIGHWRITE Ltd and L F GORMAN 19 April 1971 [2 Feb 1970] 4968/70 Headings G1N and G1U An amplifier 3 whose input is derived from a load cell 1 and whose output is indicated on a meter 4, has a gain determined by a feedback resistor 6 selected by switch 8a, and its input offset by a bias voltage selected by switch 8b. Thus, with gauged switches 5a, 5b in the extreme clockwise position and gauged switches 8a, 8b in position 0, if meter 4 indicates a load of 6À53 units, switches 8a, 8b are rotated to postiion 6, when the 6 units input to amplifier 3 are offset by the voltage selected by switch 8b, and the gain as determined by the feedback resistor 6 selected by switch 8a is such that the meter 4 covers one unit of weight for full scale deflection and therefore now indicates 5À3 units of weight.
Patent GB-1125651-A (GB)
Title: Improvements in or relating to closures for pressure vessels
IPC: F16J13/02
Filed: 1966-02-04
Abstract: 1,125,651. Pressure-resisting doors. DRAYTON CASTLE Ltd., and K. M. HENFREY. 1 Feb., 1967 [4 Feb., 1966], No. 5000/66. Heading F2P. An auxiliary member in the form of a flat, rectangular frame 6 is carried by a slidably supported door 5 and is laterally movable to a limited extent with respect to the door, the frame carrying metal balls 7 accommodated in apertures 8 which serve, on cessation of traverse of the door through a predetermined distance and continued movement of the frame, to move the door in a direction at right-angles to the direction in which it is slidable and to bring the door firmly to a closed position and into contact with a gasket 20. The frame is secured to the door by bolts 10 beneath the heads of which are springs which bias the frame towards the door. The latter is provided with recesses 9 out of which the balls ride to become wedged between the door and the frame and when the door abuts a stop 18 and pressure upon the assembly is continued; the end member 13 of the door frame 3 is resiliently coupled to the frame 6 by a stud 16.
Patent GB-775667-A (GB)
Title: Improvements relating to domestic fires
IPC: F24B1/19
Filed: 1954-02-20
Abstract: 775,667. Air supply for combustion. SMITH, W. H. May 19, 1955 [Feb. 20, 1954], No. 5053/54. Class 126 The amount of air fed to the underside of a firegrate 23 from below the floor is controlled by switching on or off a power driven blower 28. The air is fed through a flexible conduit 26 to an inlet formed in the lining of the ash pit. The ash pan 24 may leave a clearance in the ash pit, or may not reach to the height of the air inlet. Air inlets in a fret 23a allow a small amount of air to be supplied below the grate when the blower is switched off.
Patent GB-1068571-A (GB)
Title: A photomechanical copying camera
Inventor: KANDERS HERMANN
IPC: G03B27/52
Filed: 1964-02-06
Abstract: 1,068,571. Lens turrets. SIDNEY R. LITTLEJOHN & CO. Ltd. Feb. 5, 1965 [Feb. 6, 1964], No. 5174/64. Heading G2J. A lens turret 1, for a photo-mechanical copying camera is spring biased to rotate in a clockwise direction as shown and is held in position by a ratchet 9 engaging stops 7, 6, 5 each associated with a lens 4, 3, 2. The turret is rotated against the spring by a motor driven cam 12 having lobes, one associated with each lens, which engage a pivoted member 14 driving a central pinion secured to the turret. A number of flats 21, 22, 23 on the shaft 11 control operation of the motor and are arranged to stop the motor shortly after a stop has passed the ratchet member 9. A second cam 13 is arranged to pivot the ratchet out of engagement with the stops to allow the turret to be rotated by its biasing spring.
Patent GB-883595-A (GB)
Title: Improvements relating to filtration processes
Inventor: BOWERS SAMUEL FRANK
IPC: B01D25/00
Filed: 1959-02-16
Abstract: A slurry or suspension is delivered to a filtration apparatus (e.g. a filter press) and the available pressure at which it is delivered is controlled to build up progressively during the filtration operation so that the filter cakes being formed are more porous and of a more uniform consistency.  The control may be effected by a valve which is progressively opened by an electronic timer or a cam.  Specification 677,136 is referred to.
Patent GB-801425-A (GB)
Title: Soluble epinochrome derivatives and method for preparing same
IPC: C07D209/30
Filed: 1957-02-15
Abstract: This invention comprises 5-monosemicarbazone of epinochrome-2-sulphonic acid in the form of its alkali metal salts, and the manufacture thereof by condensing an alkali metal salt of epinochrome-2-sulphonic acid with semicarbazide.  This process may be combined with the preparation of the alkali metal salt of epinochrome-2-sulphonic acid by oxidation of an alkali metal salt of a -methylamino-b -(3,4-dihydroxyphenyl)-ethane sulphonic acid.  In an example an aqueous solution of sodium a  - methylamino - b  - (3,4 - dihydroxyphenyl)-ethane sulphonate is oxidized by potassium ferricyanide in the presence of sodium bicarbonate to give a solution containing the sodium salt of epinochrome-2-sulphonic acid.  A solution of semicarbazide hydrochloride and sodium acetate is added to the mixture when the 5-monosemicarbazone of sodium epinochrome 2-sulphonate is formed. Using the free ethanesulphonic acid and substituting potassium carbonate for sodium bicarbonate, the potassium salt of the 5-semicarbarbazone of epinochrome-2-sulphonic acid is formed.
Patent GB-340168-A (GB)
Title: Flashing and valley material for roofs and other purposes
IPC: E04D13/04
Filed: 1930-02-17
Abstract: 340,168. Roofing material. INTERNATIONAL COPPERCLAD CO., 25, Broadway, New York, U.S.A.-(Assignees of Shakespeare, W. M.; South Orange, New Jersey, U.S.A.) Feb. 17, 1930, No. 5340. Convention date, March 1, 1929. [Class 20 (iv).] Roofing and like material consists of a base of flexible fibrous material such as asphalted felt 10, a thin central copper or other metal strip 11, and marginal portions 12 similar to the base and slightly overlapping the edges of the strip 11. The product may be bent lengthwise for roof valleys and gutters, and may be cut lengthwise or into units. The metal strip and the marginal portions may be coated on the underside with hot asphalt and be united with the base by passing the whole through pressure rollers. The metal strip may be formed by electrodeposition. Specification 220,644, [Class 20 (iv), Floors &c.], is referred to.
Patent GB-142961-A (GB)
Title: Improvements in reflectors
IPC: F21V7/10
Filed: 1919-03-04
Abstract: 142,961. Lovell, G. March 4, 1919. Drawings to Specification. Reflectors.-Artificial light reflectors, especially those used in taking kinematograph pictures and for other photographic purposes, are made with one or both sides formed with very slight depressions and projections without sharp dividing- ridges. The reflectors may be flat or curved, and may be silvered on either surface. The reflectors may be made from glass known as " hammered cast cathedral " or " hammered rolled cathedral," which is provided, in the course of its manufacture, with slight depressions and projections, or may be made from plain glass bent to the required reflector shape in a mould provided with hollows and projections.
Patent GB-608352-A (GB)
Title: Improvements in or relating to spanners
IPC: B25B13/46
Filed: 1946-02-20
Abstract: 608,352. Wrenches. HADLEY, J. W., and MITCHELL, S. S. C. Feb. 20, 1946, No. 5369. [Class 61 (iii)] For engagement with a nut in a lateral direction the ratchet-wheel of a ratchet spanner is divided into halves 7, 8 pivoted together at 9 and urged to closed position by a spring pin 17 engaging a projection 18 and for assembly with the wheel the handle and head are formed in two parts I, 2 pivoted together scissors fashion on a pin 3 and normally tending to open under the influence of a spring plunger 22 and held closed by a ring 21.