baber/WOPTO huggingface dataset:
Patent GB-125854-A (GB)
Title: A New or Improved Heating Stove.
Inventor: RHODES EDGAR
IPC: F24B1/188
Filed: 1918-07-31
Abstract: 125,854. Rhodes, E. July 31, 1918. Air-heating fire-places.-A fire-place consists of an open grate or fuel-holder 1 in a casing 2 containing a series of vertical air-pipes 3, which are fitted with scrapers 6, serving also as baffles, to enable the soot deposited on the pipes to be removed. The scrapers are shown in Figs. 4 and 5; they are moved up and down by a rod 7. The air to be heated in the pipes 3 is supplied by a pipe 5 to a chamber 12, which, in a modification, is arranged above the back of the fire-grate 1, and has a forwardly-inclined front face. The smoke outlet 4 has a damper 4<x>, and a soot door 11 is fitted at the side of the casing 2.
Patent GB-781570-A (GB)
Title: Improvements in and relating to transistor amplifiers
IPC: H03F3/26
Filed: 1953-05-05
Abstract: 781,570. Transistor amplifying circuits. GENERAL ELECTRIC CO. May 5, 1953 [May 5, 1952], No. 12463/53. Class 40 (6). In a two-stage transistor amplifier, the collector of the first transistor 11 is connected through a D.C. path to the emitter of the second transistor 13 so that the collector circuits of the two transistors are arranged in series as regards the current supplied from the current sources 33, 45 and stabilizing resistors 27, 29 and 31 are connected as shown in the emitter and base circuits of the first transistor 11, whereby excessive variations in collector current of the transistor 11, due, for example, to temperature changes, are avoided. The amplifier shown in Fig. 1 is of the earthed-collector, earthed-emitter type; Figs. 3 and 4 (not shown) illustrate modifications of the earthed-emitter, earthed-emitter type and of the earthed-emitter, earthed-base type, respectively. Fig. 5 shows a modification of the circuit of Fig. 4 (not shown) comprising an interstage coupling transformer 65. Fig. 6 shows an amplifier delivering a push-pull output comprising a first stage a comprising stabilizing resistors 85, 87 only, a second phasesplitter stage b having stabilizing resistors 107, 109, 111 and a balance-control resistor 121, and an output stage c comprising two separate twostage amplifiers each similar to that shown in Fig. 1.
Patent GB-637452-A (GB)
Title: Improvements in or relating to electrical heating-elements
IPC: H05B3/00
Filed: 1947-05-08
Abstract: 637,452. Electric heating resistances. SLETNER, P. G. May 8, 1947, No. 12476. Convention date, Sept. 14, 1943. [Class 39 (iii) ] An electric heating element comprises a heating wire 2 disposed in a continuous meander over one face of a strip of material 1, the wire being connected at spaced intervals to supply conductors 4 disposed on the opposite face of the strip. According to one construction, metallic clips 5 are bent over the edges of the strip 1 to connect the heating wire with the supply conductors 4. The resistance wire may be woven on to the strip. Alternatively the strip may have serrated edges by which the wire is wound to form the said meanders, the wire being connected at intervals with the supply conductors through apertures in the strip. The strip 1 may be woven from asbestos, cotton, paper or the like. The Specification as open to public inspection under Sect. 91 also describes an electric heating element in which a heating wire is wound over both faces of a woven strip of material, current supply conductors being woven within the said strip and each conductor being connected alternatively to the wire on the opposite faces. This subject-matter does not appear in the specification as accepted.
Patent GB-1498828-A (GB)
Title: Electrical switch devices
IPC: H01H5/06
Filed: 1975-03-25
Abstract: 1498828 Thermal switches BEHR-THOMSON DEHNSTOFFREGLER GmbH 25 March 1975 [29 March 1974 20 Sept 1974] 12476/75 Heading H1N The electrical switch described in Specification 1,246,339 is modified in that the return spring (11) is omitted, the piston 10 of the temperature responsive actuator 8 being returned when the temperature falls by the spring 7 acting on the switch lever 6. The expandable material of the actuator 8 may be a solid, liquid, or gas, e.g. wax or rubber, and in one embodiment is contained in a recess at the bottom of the casing 1 and is covered by a rubber diaphragm (39) (Figs. 4 and 5, not shown) held in position by a guide (38) for the piston.
Patent GB-1022573-A (GB)
Title: Tube coupling
IPC: F16L37/05
Filed: 1963-03-29
Abstract: 1,022,573. Tube couplings. ELECTROLUX Ltd. March 29, 1963 [April 5, 1962], No. 12502/63. Heading F2G. An outer telescoping tubular part 28 has a portion of the wall thereof reduced in thickness which portion is elastically deformable into locking abutment against a tube 26 by a cam 20.
Patent GB-101473-A (GB)
Title: Improvements in or relating to Covers or Closures for Metallic Boxes.
Filed: 1916-09-06
Abstract: 101,473. Soc. V. Taillan et fils. Sept. 14, 1915, [Convention date]. Lids, hermetic; closure completed by molten material.-The cover b, Fig. 1, of a metal box is provided with an outwardly-extending rim d with an upwardly-rolled edge, the space e between the rim and box being filled with solder. A heated soldering-iron Fig. 3, corresponding in shape to the cover, is placed on the cover, which is forced home by hammering on the head h, and a stick of solder is then passed round the groove e. A perforation c in the cover, which allows the escape of heated air, is afterwards closed by solder.
Patent GB-312775-A (GB)
Title: Improvements in boilers
IPC: F22B21/26
Filed: 1928-04-30
Abstract: 312,775. International Harvester Co. of Great Britain, Ltd., (International Harvester Co.). April 30, 1928. Water-tube boilers; feedwater, supplying.-A boiler comprises preheater coils 15, 16 and separate evaporator and superheater coils 20, 23 arranged concentrically a.round a burner 37 and a storage or separator drum 19 connected to the evaporator and superheater coils, an ejector 18 being provided so that all the preheater water passes into the evaporator coils together with some additional water from the drum 19. The evaporator coils 20 are thus protected from burning out, and they serve to protect the superheater coils 23. The drum 19 and ejector 18 are arranged in an upper casing 38 above the lower casing 36 for the coils and burner, the flue gases passing up through an annular space 39 or out at one side of the casing 36. Water passes through the coils 15 - - 17 into the ejector 18 and then, with additional water from the drum 19, into the coils 20. The coils 20 empty through a tube 21 tangentially into the drum 19, steam passing to the coils 23 through a tube 22 and water settling to the bottom of the drum 19. The drum 19 is provided with a pressure-gauge, water-level indicator 24 and blow-off cock and with a tube leading to a valve which regulates the supply of fuel and air from a blower to the burner according to the pressure in the drum 19. Steam passes through the tube 6 to a uniflow engine and then through a condenser to a hot well from which the water is pumped back into the boiler, a float-controlled valve in the hot well closing the connection to the pump if the water level in the well falls. The pump is operated from the engine but a hand pump is provided for starting up the boiler. The same water thus circulates continuously, additional water being added to the hot well when necessary.
Patent GB-920467-A (GB)
Title: Escapement for clock movement
IPC: G04B15/00
Filed: 1961-04-07
Abstract: 920,467. Clocks. H. STEIGER. April 7, 1961 [Dec. 1, 1960], No. 12695/61. Class 139. An escapement in which the oscillator comprises two separately oscillating elements mechanically coupled together. The oscillator comprises a vibrating wire or blade element 10, Fig. 1, fixed at 11 to the frame and connected by a resilient e.g. rubber member 14 to a second vibrating element 12 the end 13 of which co-operates with the teeth of the escape wheel 6 driven for example by a main spring 2. The two vibrating elements may be formed from a single member shaped as shown in Fig. 2.
Patent GB-1449097-A (GB)
Title: Shower head
IPC: B05B1/18
Filed: 1974-03-21
Abstract: 1449097 Spray producers HANS GROHE KG 21 March 1974 [29 March 1973] 12738/74 Heading B2F A sprayhead comprises annular nozzle structures 6, 7 mounted on a housing 1 by means of a screwthreaded securing ring 2, the nozzle structures being axially displaceable relative to housing 1 and having elongated discharge outlets 11, 12 respectively provided on their peripheries. The nozzle structures 6, 7 have frustoconical radial extensions 8, 9 at their lower ends, extension 8 coacting with a frustoconical surface 5 of the securing ring 2 and extension 9 coacting with an internal frustoconical surface 13 of nozzle structure 6. The nozzle structures are retained in their positions of use by a spring 15 mounted between a base 14 of nozzle structure 7 and guide ribs 16 of the housing 1. In use, water enters the housing 1 and passes through flow channels 18, 19 to the discharge outlets 12, 11 respectively. Should a blockage occur in the discharge outlets, one or both of the nozzle structures 6, 7 may be axially displaced inwardly by exerting a force in the direction of arrow 20 to increase the outlet cross-section and clear the blockage
Patent GB-822974-A (GB)
Title: Process for bleaching cellulosic material with hypochlorite
IPC: D06L4/23
Filed: 1957-04-18
Abstract: In a process of bleaching cellulosic material with an alkaline hypochlorite solution, the concentration of active chlorine, as hypochlorite, in the bleaching bath is kept, by measurement of the electric potential of the bath, below that concentration above which the electric potential does not increase at an appreciable rate with increasing active chlorine concentration.  The cellulosic material may be fibres, yarns or fabrics of cotton, linen or regenerated cellulose and may be previously treated with a hot sodium hydroxide solution.  In examples the alkaline hypochlorite bath is at a temperature from 60 DEG  to 80 DEG  C. and initial active chlorine concentration of 0.023 to 0.05 grams per litre and successive additions of hypochlorite are made to maintain the concentration. The additions may be made automatically in response to changes in the electric potential.
Patent GB-658450-A (GB)
Title: Improvements relating to bicycle generators
IPC: B62J6/12
Filed: 1949-05-13
Abstract: 658,450. Driving dynamos. RABL, A. May 13, 1949, No. 12827. Convention date, May 13, 1948. [Class 35] [Also in Group XXIV] A hub dynamo for the front wheel of cycles is driven, through a clutch which may be disconnected at will, at increased speed from the rotation of the wheel by friction gearing comprising a series of ball-races resembling bearings. The necessary axial pressure to provide the required frictional grip is supplied by resilient, centrifugal or magnetic means and the axial force on all the gear stages is taken by a common thrust bearing. In one form, Fig. 1, in which the gearing is in three stages, I, II and III, the ball-train 39 of Stage I runs between an outer race 2, which is integral with the outer race of Stage II, and is secured in the wheel hub 1, and an inner race 13 which is rotatable on the track bearing 14 and is integral with the cage 12 of Stage II. In order to transmit a drive through this inner race to the ball-train of Stage II, the cage 25 of the ball train 39, which normally rotates freely, is locked by an arm 31 engaging a radial notch 27 on depression of a lever 26. Rotation of ball-train 6 of Stage II causes increased rotation of its inner race 4 on a bearing 9. This, in turn, drives the ball-train 7 of Stage III, and since its outer race 3 is frictionally constrained by an expanding elastic or spring ring 8 to rotate at the hub speed, the inner race 5, which is joined to the dynamo motor 11 is driven at increased speed. The necessary axial pressure to enable Stages II and III to give the frictional drive is supplied by the expanding ring 8 whose limiting friction between the outer races 2, 3 provides over-load protection. This axial pressure is carried by bearing 9. The current from the generator winding 22 is taken to the external circuit through insulated track bearing 17. In a modification, not shown, the axially expanding ring is arranged to press races 2 and 3 together instead of apart. In a further modification the pressure between Stages II and III is supplied by a centrifugally-operated device sliding one of the races axially. In further modifications, in one of which the wheel hub and gearing are carried on a single bearing cone, the axially expanding ring is used between Stages I and II whilst Stage III is under the axial force between the two elements of the dynamo. To eliminate shocks, the ball cage of Stage II may comprise elastic tongues projecting from the cage 25 of Stage I or the tongues 31 of the clutch may be flexible.
Patent GB-220369-A (GB)
Title: Improvements in dynamo-electric machines
IPC: H02K31/00
Filed: 1923-05-14
Abstract: 220,369. Dean, W. H. May 14, 1923. Homopolar machines; supports.-In a dynamoelectric generator, stated to produce continuous current, a rotary magnet r has all its projecting poles of the same sign, and opposite poles are adjacent the shaft d; the fixed annular armature j is magnetically connected at its ends by bolts k to end plates c, and the magnetic circuit is completed through discs g on the rotating shaft. The laminated armature has a ring winding h wound in longitudinal slots p and connected to the external circuit by leads q. To prevent passage of the flux through the bed-plate, non-magnetic sections t may be inserted in the bearing pedestals f.
Patent GB-623521-A (GB)
Title: Improvements in or relating to mining machines of the cutter-loader type
IPC: E21C27/02
Filed: 1947-05-13
Abstract: 623,521. Mining-machines. LOGAN MINING MACHINERY CO., Ltd., and LOGAN, W. A. May 13, 1947, No. 12872. [Class 68 (i)] A mining-machine of the cutter-loader type has a shearing jib 1, a bottom jib 2 and an upper jib, each carrying cutter-chains, a plate 3 below the shearing jib deflecting gum or cuttings therefrom to a transverse conveyer 4 from which it is delivered by an archimedean screw system 5 through an opening 6 to a face conveyer; a further transverse conveyer 8 delivers gum from the bottom jib by way of an archimedean screw system 9 and an opening 10 to the face conveyer. The conveyers 4, 8 are preferably endless chain conveyers disposed in a substantially vertical plane. An elevator 15 removes the cut coal.
Patent GB-924743-A (GB)
Title: Improvements in or relating to liquid-conveying apparatus
IPC: A62C35/60
Filed: 1961-04-10
Abstract: 924,743. Water supplies; fire-extinquishing. SULZER FRERES S.A. April 10, 1961 [May 10, 1960], No. 12903/61. Classes 47 and 68 (1). Apparatus for preventing a pressure drop at a discharge point of a pipe-line during the initial discharge of liquid from said point, which may be connected to fire-fighting equipment such as sprinkler nozzles. The apparatus comprises a closed vessel connected to the line near the point, and a source of pressurized gas connected to the vessel through a pressure-reducing valve. During initial discharge of liquid from said point liquid is forced out of the vessel by gas entering the vessel, the liquid from the vessel being of a sufficient quantity to prevent cavitation in the pipe and a pressure drop at the discharge point until liquid has started to flow evenly and satisfactorily through the whole length of the pipe.
Patent GB-419292-A (GB)
Title: Improvements in methods for purifying electric insulating liquids
IPC: H01B3/20
Filed: 1933-05-03
Abstract: <PICT:0419292/III/1> In a method of purifying electroinsulating oil, the oil is fed by a pipe 6 into a container 1 in which a dielectric substance 3 such as cotton, is held between perforated discs 4, 5. While passing through the material 3, the oil is subjected to an electrostatic field produced by a uni-directional potential applied between an electrode 2 and the container 1 acting as an electrode, moisture and fine particles being removed from the liquid.  The purified oil leaves the container by a pipe 7.
Patent GB-130777-A (GB)
Title: Improvements in and relating to Transporting Apparatus of the Type known as Roller Conveyers.
Inventor: ROGERS CROSBIE
IPC: B65G13/00
Filed: 1918-08-09
Abstract: 130,777. Rogers, C. Aug. 9, 1918. Endless-belt conveyers; driving-gear; roller-way conveyers.-Relates to roller conveyers of the kind having one or more co-operating endless bands, and consists chiefly in arranging the upper surface of the band or bands flush with the surface of the conveying-rollers &c. The rollers D, which may be fluted, are mounted in side frames E supported on a stand G, the side frames having pulleys A over which pass the endless bands C. The conveyer may have a gravity feed or, as shown, be driven by a motor H. The bands C, Fig. 4, fit, in grooves in the rollers D so as to be flush with the conveying-surface of the rollers. In a modified construction, the conveying-rollers are replaced by two lateral sets of carrier wheels, and the bands, which may be supported by rollers to prevent sagging, are flush with the conveying- surfaces of the carrier wheels. The endless bands may be fitted with pads or the like.
Patent GB-444278-A (GB)
Title: Process for the production of elastic articles from polyvinyl alcohol
IPC: C08L29/04
Filed: 1935-05-01
Abstract: Elastic objects are manufactured by working up a polyvinyl alcohol, insoluble in cold water, in the cold condition into a paste with water and softening agents, the weight ratio of polyvinyl alcohol to water and softening agent being between 1 : 1 and 1 : 1.5, pressing the paste into the desired form and simultaneously or subsequently heating to 80--100 DEG  C.  There may also be added high molecular colloidal filling materials, e.g. glue, dextrin, gelatine or starch, which may be converted into the waterinsoluble state by the addition of tanning substances, e.g. formaldehyde, the weight ratio of polyvinyl alcohol and filling material to water and softening agents being between 1 : 1 and 1 : 1.5.  The process is applicable to the manufacture of slabs with or without insertions of fabric, thin films, packings and articles of complicated shape, and to the production of tubes by means of a spiral press or a stamping press having a spraying aperture capable of being heated.  In examples, compositions are employed consisting of polyvinyl alcohol and water together with: (1) ethylene glycol; (2) gelatine or glue, potassium dichromate and glycerol, if desired with the addition of mineral dyestuffs and fillers; (3) as in (2) with the addition of starch.
Patent GB-1178078-A (GB)
Title: Substituted Pyridazines and Herbicidal Compositions containing them
Filed: 1968-03-18
Abstract: 1,178,078. Herbicides containing pyrida. zines. SANKYO CO. Ltd. 18 March, 1968 [17 March, 1967; 6 Nov., 1967; 27 Feb., 1968; 28 Feb., 1968], No. 13062/68. Heading A5E. [Also in Division C2] Herbicidal compositions comprise a compound of the formula: where one of R and R<SP>1</SP> is methyl, the other is C 2-4  alkyl and X is hydrogen; or R is C 2-4  alkyl and R<SP>1</SP> and X are hydrogen; or R is C 2-4  alkenyl, R<SP>1</SP> is hydrogen, and X is hydrogen or chlorine; the group R<SP>1</SP> being in the 4- or 5- position, in association with an inert diluent. The compositions may be formulated as granules, powders or solutions. Conventional additives may be present, and the compositions are particularly useful against grasses and broad-leafed weeds.
Patent GB-167312-A (GB)
Title: Improvements in actuating mechanism for epicyclic change-speed gear
IPC: F16H61/02
Filed: 1920-05-13
Abstract: 167,312. Guilford, P. G. May 13, 1920. Controlling variable-speed .genring.-Epicyclic variable-speed gearing is controlled, by a plate s<1> which is moved in its own plane by a hand-lever l<3> to select, and perpendicular to this plane by a foot-lever z, to operate,. Control clutches and brakes are operated by thrusting upon the ends of rods p<1> - - p<4> by studs d<1> - - d<4>, the rods and studs having concave and convex ends producing a lock. Sideway and up-and-down movements are imparted to the plate s<1> by means l<1>, l<2> extending through holes in it and carried by a spring-pressed rod q<1> secured to the lever l<3>, which works in a ' gate.' The plate s<1> is supported on a thrust block t<1> normally held thrust downwards of Fig. 1 by a spring g<1> and released by cam-lever z.
Patent GB-353530-A (GB)
Title: Device for casting bearings
IPC: B22D19/08
Filed: 1930-04-30
Abstract: 353,530. Casting bearing- liners. FUCHS, R., 34, Bambergerstrasse, Lichtenrade, Berlin. April 30, 1930, No. 13309. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 18, 1930.] [Class 83 (i).] Moulds.-A device for casting bearing- liners, especially for internal-combustion engines, has a base a with a mandrel b over which is placed a core c and sealing tubes n, o, p, with staggered slots. The core is clamped on asbestos packing q by a bolt e and the split tubes make a tight joint with the base by reason of packing q placed below the tube o and enclosed by pushing down the tube p. The half bearing-brasses 9 are supported by wings k bent outwardly from double-thickness dividing plates i which may be opened out slightly at the top to permit the subsequent insertion of a wedge or tool to separate the two castings. The whole is closed by a cover A carrying a thermomenter or thermostat B so that a definite uniform temperature may be obtained when a flame is applied to the bottom. Casting machines.- The process may be carried out by means of a molten metal supply x, Fig. 4, arranged above and two burners S, S<1> below a rotary table R which has recesses 1 .. 4 for four moulds and which can be locked in any of four positions by a latch T.
Patent GB-133165-A (GB)
IPC: A01B1/02
Abstract: 133,165. Hadfield, Sir R. A., and Jack, A. G. M. Oct. 4, 1918. Shovels.-A shovel of the kind suitable for military use which can also be adapted for use as a chest shield against rifle bullets is made of water-toughened manganese steel preferably of the kind known as Hadfield's manganese steel manufactured as described in Specification 133,151, [Class 83 (iv), Metals, Working]. The blade a of the shovel is cut or stamped of such steel, pressed to shape with a slightly concave front surface and annealed and water-toughened. The socket part d is formed of similar sheet manganese steel and is riveted on the rear surface of the blade. The socket part may be formed with side extensions which are folded over the top edge of the blade to provide treads. The blade may be perforated for the attachment of suspending means such as a cord or strap or may be carried in a breast bag.
Patent GB-1509082-A (GB)
Title: Methods and apparatus for cleaning paper in a high speed electrostatic printing apparatus
IPC: G03G15/34
Filed: 1975-04-01
Abstract: 1509082 Removing dust from sheets ELECTROPRINT Inc 1 April 1975 [1 April 1974] 13340/75 Heading B6C A roller 9 and doctor blade 13 produce a film of limited thickness which wets medium 6 such that unwanted particulate matter adheres to the roller 9 or to the wetted medium 6. The liquid is preferably transparent, non-staining and viscous, e.g. silicone oils, iso-paraffins, polymers dissolved in trichloroethane. The roller 9 is preferably nickel plated steel. As shown two identical roller assemblies are in series immediately upstream of a printing station.