baber/WOPTO huggingface dataset:
Patent GB-218759-A (GB)
Title: Improvements in reciprocating pumps
IPC: F04F5/10
Filed: 1923-04-14
Abstract: 218,759. Dickinson, R. H. April 14, 1923. Valveless pumps; delivery pipes; priming; assisting suction. -A pump of the kind in which the delivery passage forms an extension of the cylinder bore, so that the liquid expelled forms an inertia column obviating the use of delivery valves and serving to draw in a fresh charge through the inlet port, comprises a chamber d communicating with the cylinder a and extending beyond the stroke of the piston b. The inlet port g<1> opens into the chamber d beyond the stroke of the piston and the delivery passage e is arranged at the end of the chamber d so that suction and delivery take place during both strokes of the piston. The suction pipe may be bent as shown so that during the delivery stroke the liquid produces an injector effect in the suction pipe. A priming cock j is provided at the top of the chamber d and a regulating screw e<1> may be arranged in the delivery pipe. In another form, the inlet ports are arranged obliquely in the wall of the cylinder.
Patent GB-182438-A (GB)
Title: Improvements in and relating to atomisers
IPC: F23D11/10
Filed: 1922-04-10
Abstract: 182,438. Engineer Co., (Assignees of Starr, F. C.). June 25, 1921, [Convention date]. Air and steam pressure sprayers.-In an atomizer for liquids, more particularly for spraying oil fuel, the material to be sprayed is projected by the atomizing medium (steam or air) into a chamber where it is subjected to a further atomizing jet which imparts a whirling motion to the material. Fig. 1 shows a form in which a body 1 is supplied with liquid through a port 7 and air or steam through a port 6. Some of the air passes through a port 12 to an ejector nozzle preferably of Venturi form and provided with a needle valve 37 and from thence to the chamber 9, where the liquid is atomized and ejected into the axial chamber 22 which leads to a flaring outlet. A further quantity of atomizing medium passes along a port 4 to an annular chamber 21 formed between the body 1 and nozzle member 19 and thence through tangential ports 26 to a passage 23 where the liquid is subjected to a further atomizing and whirling motion. The flaring out. let of the nozzle may be covered with a perforated plate 30. In the form shown in Fig. 6, the spraying head is connected to a tube 38 the other end of which is connected to the liquid supply while the other 43 contains a stuffing-box through which passes a tube 48 for the atomizing fluid. The tube 48 carries at its outer end a nozzle 47, preferably of Venturi form, ending in a coned part 47a. Screwed into the spray-head is a nozzle piece 52, the inner end being coned at 54<a> parallel to the cone 47a and provided with tangential ducts 62. A further supply of atomizing fluid is supplied through the pipe 59 to the annular chamber 56 and thence by the ducts 62 to the nozzle.
Patent GB-610393-A (GB)
Title: Improvements in or relating to means for opening bales of fibres
IPC: D01G7/04
Filed: 1946-04-04
Abstract: 610,393. Opening bales of fibres. HUGHES, J., BULL, J., and CLOVER, CROFT, & STATE, Ltd. April 4,1946, No. 10402. [Class 120(i)] A machine for opening bales of fibres in which bales are fed upwards to teeth which flake fibres from the top of the bales, comprises a horizontal row of toothed or spiked rollers 8 rotating at a relatively low speed, in combination with a horizontal row of toothed or spiked rollers 10 each of which is superposed vertically above one of the rollers 8 and rotates at a relatively high speed, some of rollers 8 rotating in the reverse direction to the others, whereby rollers 8 comb or flake fibres from the top of the bales and convey them upwards between some of rollers 8 to the rollers 10 which throw them into an enclosed space 12 above them, break up any lumps of fibres and prevent clogging of rollers 8. As shown, bales 5 are wheeled on a truck 4, running on rails 6, through a door 3 onto an elevatable platform 2. Rollers 8 may rotate at 3 to 12 revs./min., alternate rollers rotating in opposite directions, while rollers 10 may rotate at about 1,000 revs./ min. and in a direction to throw loose fibres upwardly to the right of space 12 whence they are carried, by the air-stream created by a fan 17, through an opening 7 to a perforated condensing drum 16 from which they are stripped and delivered through a delivery trunk 15. Matted fibres too heavy to float in the air-stream fall back to be treated again by rollers 10. A baffle 20 ensures correct movement of the air in space 12 as shown by arrows 21, 22. A guide plate 23 guides lumps of fibres back to rollers 10, and adjustable trap plates 24 prevent fibres falling down the sides of the bales.
Patent GB-583534-A (GB)
Title: Electrical oscillation generators
IPC: H03L5/00
Filed: 1944-05-31
Abstract: 583,534. Valve generating circuits. STANDARD TELEPHONES & CABLES, Ltd. (International Standard Electric Corporation). May 31, 1944, No. 10445. [Class 40 (v)] A pentode V1, oscillating at a frequency determined by a resonant device X, such as a quartz crystal, has a parallel resonant output circuit L1, CV1 and feeds through a buffer amplifier V2, a diode V3 supplying bias to the suppressor grid of the pentode V1 to stabilise the amplitude of the oscillations ; both valves operating without grid current. The feed-back in the oscillator is varied by condenser CV3 and the feed for the amplifier is taken from a resistance R2, the output from the amplifier being taken from a tuned circuit L2, CV2 and resistance R5. The bias on the cathode of diode V3 may be varied to control the level of oscillation, and the bias on the suppressor grid adjusted to operate the valve on the midpoint of the mutual conductance/suppressor grid potential curve. In a modification, Fig. 5 (not shown), the anode supply lead is taken to the centre of inductance L1, the feed-back being taken from the opposite side of the tuned circuit from that shown in the Figure. Other electro-mechanical elements may be used for the device X.
Patent GB-702046-A (GB)
Title: Improvements in and relating to papermakers' felts
IPC: D21F1/00
Filed: 1950-04-28
Abstract: 702,046. Papermakers' felts. RACE. E. April 25. 1951 [April 28, 1950], No. 10455/50. Class 142(4) A cotton or asbestos-faced cotton drier felt contains 3 to 15 per cent of nylon filaments in the warp. The filaments may be plied with cotton or asbestos yarn or may constitute a core round which asbestos yarns are twisted.
Patent GB-675178-A (GB)
Title: Method of and apparatus for making a loosely felted web of fibrous material
IPC: D21D1/30
Filed: 1948-04-15
Abstract: 675,178. Preparation of fibrous slivers. BOULY, H. G. (Paper Patents Co.). April 15, 1948, No. 10491/48. Class 120(i) [Also in Group VIII] Pulp, paper, pasteboard, or clippings &c. in a dry state, or moistened with water, or sprayed &c. with wax &c. is partly broken up as by a hammer mill &c. and blown axially into a disc mill 9 where it is separated into fibres &c. by the discs 13 and 14 which are oppositely rotated by motors 17, 18, 'and are adjustably spaced apart. Fibres &c. leaving the periphery of the disc mill are conveyed by a large volume of air, regulated by a pivoted flap 37, through a grid constituted as rapidly rotating intercalated plates 50, 51 which aid in spreading the fibres so that they form a uniform fleece or sliver on a conveyer 11 which carries the fleece beneath a roller 41b at an adjustable speed and feeds it to a delivery conveyer 12. The upper run of the conveyer 11 is supported as by an expanded metal grid 63 on trestles 65. The casing of the appliance which is. of metal, earthed and lined with glass to reduce electrical clogging has an opening 68 allowing the air to be re-circulated. Air or steam &c. may be blown axially into the disc mill 9 and may also reduce clogging.
Patent GB-634932-A (GB)
Title: An improved container for dental plate hygiene
IPC: A45D44/20
Filed: 1947-04-19
Abstract: 634,932. Vessels for disinfecting dental plates. CHAPMAN, H. E., and CHAPMAN, A. E. April 19, 1947, No. 10492. [Class 81(i)] [Also in Group XVII] A container for dental plate hygiene comprises two wide-mouthed vessels 2, 2, and a coupling member 4 adapted to connect them detachably in mouth-to-mouth internal - pressureresisting relationship, the coupling member having a diaphragm 5 which has perforations 6 and which serves as a common closure for the vessels. The coupling member may be threaded as shown or, alternatively, may have bayonet-type joints having a screwing or tightening action. Sealing washers 4<SP>x</SP> may be provided and the outer surface of the member 4 may have flat facets to afford a grip.
Patent GB-365426-A (GB)
Title: Improvements in and relating to nut locks
IPC: F16B39/10
Filed: 1931-04-09
Abstract: 365,426. Locking nuts. HURST, G. P., Rapid City, South Dakota, U.S.A. April 9, 1931, No. 10502. [Class 89 (i).] A locking-device for nuts comprises a disc 9 which is threaded on the shank 2 and rests against the head 1. Arms 10 which in the blank extended outwardly are bent across the disc and then inwards to lie in longitudinal grooves 4 in the shank and are of such a length that when the nut 5 has been screwed up to the work the free ends 11 of the arms may be bent over the head of the nut to lock it in position.
Patent GB-123679-A (GB)
Title: An Improved Joint for Fume Pipes and Absorption Towers.
Inventor: FLETCHER WILLIAM
IPC: F23L17/02
Filed: 1918-06-26
Abstract: 123,679. Fletcher, W. June 26, 1918. Fluid-seal joints.-Fume pipes, or absorption towers, are constructed of earthenware, clay, silica, glass, aluminium, or other tubes T, which are coupled together and sealed by a fluid-seal joint, formed by means of liquid in a trough F, formed between an inner collar B, which is bevelled at its upper end to receiving a sloping lip K at the top of the dip portion H. A flange G projects over the outside rim A of the trough F and prevents water from entering the seal chamber from outside, and the collar B is formed with a shedding E, which allows condensed liquid to flow back into the trough F.
Patent GB-413086-A (GB)
Title: Improvements in or relating to shaving brushes
IPC: F16D13/69
Filed: 1933-04-10
Abstract: 413,086. Brushes. LANE, W. M., 102, The Grove, Hammersmith, London. April 10, 1933, No. 10635. [Class 19.] A shaving brush is made with a sleeve e which is a tight sliding fit on a cylindrical stock bl. In this way the sleeve can be adjusted to vary the effective length of the bristles.
Patent GB-1222997-A (GB)
Title: A control system for self-advancing hydraulic roof supports for longwall faces in mines
Inventor: GREBE KONRAD
IPC: E21D23/20
Filed: 1968-03-05
Abstract: 1,222,997. Advancing mine roof supports. K. GREBE. 5 March, 1968, No. 10655/68. Heading E1P. In an advancing mine roof support system for a longwall face comprising pairs of multiprop frames A and B interconnected in parallel arrangement for alternate advance and controlled from a central station having pressure generating means, such as a pump 11, the props of one frame of each pair A are connected to a first hydraulic line 1 whilst the props of the other frame of each pair B are connected to a second hydraulic line 2 and each of these lines 1, 2 functions alternately as a supply and as a return line therefor. The connection between each of the props of a frame and its associated line contains a check valve such as 22 or 23 responsive to the pressure existing in either the line which serves the props of the other frame or the line which serves the advancing ram thereof. Again, the pressure in the line serving as a return is maintained at sufficient pressure to hold the advancing frame into elastic contact with the roof. The circuit shown includes manifolds I, II, III each having an accumulator 12, a prop setting valve 13 and a common reservoir 16 whilst each frame is provided with an exhaust valve such as 24 or 25 and an advance limiting unit 33. In operation the frames A are first advanced and then the frames B brought up level therewith in sequence-the operation being controlled by a manual control valve 29 and automatically operable valves 30, 30'. The circuit may be modified to allow the frames A, B to be advanced in overtaking steps for details of which to-gether with other minor modifications, Figs. 5-9, (not shown) and the Specification should be referred to.
Patent GB-567013-A (GB)
Title: New or improved apparatus for laying pipes, ducts and like conduits in the ground
IPC: E02F5/10
Filed: 1943-07-01
Abstract: 567,013. Pipe-laying machines. SHROSBERY, A. J., TURNEY, J. E., WOODS, A. E., and CLARKE & CO., Ltd., T. July 1, 1943, No. 10716. [Class 6 (i)] [Also in Group XXVIIT] A pipe-laying machine comprises a frame 1 mounted on ground wheels, a mole 40 carried on the frame, and a casing secured to the mole blade 42 consisting of a pair of parallel side plates 31 having their front end portions converging together to knife edge form to assist the mole in forming a trench, a shoot for pipes including an arcuate plate 36 extending between the side plates of the casing. The mole 40 and an auxiliary mole 50 are adjustably mounted on a beam 18 pivoted at its forward end to the frame and adapted to be raised and lowered by a winch 26. The upper end 37 of the shoot extends towards a pipe container 48, and the shoot has a rearward extension 46, the lower side of which comprises a hinged flap 47. Jointing cement is fed to the laid pipes through a pipe 59 from a hopper 58, a. valve 60 being controlled by a lever 61.
Patent GB-623267-A (GB)
Title: Dental matrix holders
IPC: A61C5/85
Filed: 1947-04-22
Abstract: 623,267. Dental matrices. MULLER, J. J. April 22, 1947, No. 10787. Convention date, Aug. 5, 1942. [Class 81(ii)] In a dental matrix holder a supporting plate 6 for a tooth 2 is provided with converging slots 8 so that a matrix band 1 drawn through the slots may be adapted to the conicity of the tooth to be treated. The ends of the matrix band are clamped in a member 4 by discs 11 attached to screws 10 and the band is tightened against the tooth by adjustment of screw 3 which is threaded in the member 4 and to the head of which the supporting plate 6 is loosely fixed. In the Specification as open to inspection under Sect. 91 is described a modification, Fig. 4 (Cancelled), in which the member 4 is provided with clamping levers 14 pivoted to the member at 13 and actuated by screws 16. This subject-matter does not appear in the Specification as accepted.
Patent GB-142103-A (GB)
Title: Means for feeding cinematographic films
IPC: G03B1/18
Filed: 1920-04-19
Abstract: 142,103. Larsson, E. A. April 22, 1919, [Convention date]. K i n ematograph apparatus.-Intermittent motion with semi-independent stop action is imparted to the film sprocket drum which, owing to the disposition of t h e revolving parts, rotates comparatively slowly and therefore allows of a large sprocket drum being used with consequent diminished strain on the film perforations. In the construction shown in Fig. 1, the pin wheel 1 rotates the star wheel 3 which in turn, by means of pins 4, rotates intermittingly the slotted disk 6 to which is connected the film-feeding drum. The pin wheel 1 has a cam groove 7 which imparts oscillating motion to a double-armed lever 9 mounted in bearings 11. The end 12 of the lever 9 engages in slots 5 of the disk G, and is swung aside when motion of the disk 6 is about to take place. Other gearing may be used in place of the pin-wheel drive, and the edges of the slots 5 and the lever end 12 may be bevelled to facilitate the action.
Patent GB-730744-A (GB)
Title: Improvements in or relating to an aqueous preparation nebulisable to an aerosol
IPC: A61K31/16
Filed: 1953-04-21
Abstract: An aqueous preparation nebulizable to an aerosol for use in the liquefaction of respiratory secretions comprises by weight 0.125 per cent of oxyethylated tertiary octyl phenol-formaldehyde condensation product, 5 per cent of glycerol and 2 per cent of sodium bicarbonate. Specification 594,475, [Group IV], is referred to.
Patent GB-237657-A (GB)
Title: Improvements relating to drop-down small-arms
IPC: F41C7/11
Filed: 1924-05-03
Abstract: 237,657. Johnstone, D. V., and Fearn, J. W. May 3, 1924. Breech actions, drop-down barrel.-The breechbody of an under-and-over gun is formed at the sides with upstanding lugs f adapted to fit into open-bottomed recesses e in the sides of the barrel unit, the lugs and recesses forming interlocking abutments which assist in maintaining a gastight joint and taking the firing stresses off the hinge The hinge is formed by studs i, Figs. 5 and 7, projecting inwards from the sides of the actionbody and engaging open-sided bearings j, Fig. 4, in lugs j<1> on the sides of the barrel unit. The lugs j<1> extend above the bearing and form stops co-operating with shoulders k<2> on the body knuckles to limit the drop-down movement of the barrels.
Patent GB-950419-A (GB)
Title: Internal-combustion engine with turbocharger and aftercooler
IPC: F02B29/04
Filed: 1962-03-23
Abstract: 950,419. Cooling charges for I.C. engines. CATERPILLAR TRACTOR CO. March 23, 1962 [April 17, 1961], No. 11183/62. Heading F1B. Compressed air from a turbocharger is cooled by an elongated after cooler 29 situated in the intake manifold 26, the air flowing downwardly through the cooler 29 from the upper manifold portion 26 to the lower portion 19 communicating with the cylinders. The after cooler has baffle plates 35, 36, guiding the air flowing therethrough.
Patent GB-928891-A (GB)
Title: Improvements in or relating to the use of ion-exchange resins
Inventor: EVANS HERBERT LLOYD
IPC: B01J47/10
Filed: 1958-04-09
Abstract: 928,891. Ion-exchange. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 7, 1959 [April 9, 1958], No. 11220/58. Class 46. The rotatable vessel 1 has a bed of ionexchange resin 7 contained by linings 8 and 9 from passing through the apertures 5 and inlet 6. Liquid is drawn up inlet 6 by centrifugal action passes through the exchanger and treated liquid is ejected through apertures 5. The ion-exchanger may be in the form of a bed or sheets of or coated with exchanger. Anion and cation exchangers are described as well as mixtures of exchangers or beds.
Patent GB-252143-A (GB)
Title: Improvements in or relating to centrifugal pumps
IPC: F04D29/46
Filed: 1926-04-28
Abstract: 252,143. Sulzer FrÞres, Soc. Anon. May 18, 1925, [Convention date]. Regulating and controlling.-A centrifugal pump with an impeller b is provided with adjustable guide vanes c secured to rotatable shafts e by means of arms d. The arrangement is such that the inner edge of each vane c coincides with the axis about which its shaft e can be turned.
Patent GB-382215-A (GB)
Title: Process for the production of ammonium sulphate
IPC: C01C1/247
Filed: 1932-04-19
Abstract: Ammonium sulphate is obtained by oxidizing ammonium sulphite, thiosulphate or polythionates solely and directly with concentrated or dilute liquid nitric acid.  The oxidation may be accelerated by means of catalysts such as vanadic acid.  The nitric oxide formed may be oxidized to nitrogen peroxide or to nitric acid which may be returned to the process.  The ammonium sulphite may be employed in the solid state or in aqueous solution.
Patent GB-581436-A (GB)
Title: Process for rendering cellulosic fibres, or fabrics, transparent
IPC: D06M15/05
Filed: 1945-05-03
Abstract: Cellulosic fibres or fabrics are rendered transparent by impregnation with a solution of cellulose zincate followed by mercerization while the goods are in the damp condition. Cellulose zincate solutions containing 2-5 per cent cellulose and having a total alkalinity of 5-8 per cent referred to NaOH, and fabrics or fibres of cotton or regenerated cellulose, including pre-mercerized fabrics, may be used. If desired, the cellulose may be regenerated after impregnation by precipitation with salts or dilute acids.  Mercerization is preferably performed under tension with alkali of mercerization strength.  Acid treatment may be carried on in place of or in combination with mercerization.  In examples: (1) bleached unmercerized cotton muslin impregnated with a solution containing 4 per cent cellulose, 2 per cent zinc oxide and 6 per cent total alkali, calculated as NaOH, is mercerized, without intermediate drying in caustic soda solution (30 DEG  B<\>ae) for 1/2 minute; (2) bleached unmercerized cotton muslin impregnated with a solution containing 3 per cent cellulose, 1.5 per cent zinc oxide and 7.5 per cent total alkali, calculated as NaOH and subjected to the action of a solution containing 50 gms. calcined Glauber salt and 25 c.cs. of concentrated sulphuric acid per litre, followed by washing in cold water until neutral, and squeezed, is mercerized in caustic soda solution (32 DEG  B<\>ae) for 1 minute; (3) mercerized, bleached cotton muslin impregnated with cellulose zincate solution and subjected to the acid treatment as in (2) is steeped for 12 seconds in sulphuric acid (50 DEG  B<\>ae at 15 DEG  C.).  Local "effects" may be obtained by applying the solution with a printing roller.  The cellulose zincate solution may be made by boiling zinc oxide with sodium hydroxide solution until a clear solution is obtained, diluting with water and then cooling to room temperature.  Viscose waste is added, and the solution is allowed to stand for 1-2 days, after which more water is added. Specification 573,768 is referred to.
Patent GB-320639-A (GB)
Title: Improvements in or relating to synchronising devices for television systems and the like
IPC: H04N5/76
Filed: 1928-04-16
Abstract: 320,639. Baird, J. L., and Television, Ltd. April 16, 1928. Synchronous movements.-In a synchronous movement for television apparatus, in which a distinctive signal is transmitted and a correcting device at the receiver is only operated when the receiver is out of phase, the synchronizing signal is introduced into the line transmitting the currents from the light-sensitive cell. Transmitter. 'The synchronizing-impulse may be produced by reducing the current to zero by means of an interrupting-commutator in series with the light-sensitive cell and having a segment corresponding to each hole in the exploring disc (Fig. 1, not shown). Alternatively, a powerful synchronizing signal is transmitted by shortcircuiting, by a commutator 14, Fig. 2, a valve 20, which amplifies the photo-electric current, to produce a large current from a high-tension battery 22. According to modifications, the synchronizing-signal is produced by applying a large positive bias to the valve (Fig. 3, not shown), or by a separate light-sensitive cell (Fig. 4, not shown). Receiver. When a commutator 50, Fig. 5, is in synchronism, it short-circuits a connecting- relay 56 at the moment the synchronizing-signal is received; otherwise the signal is applied to the correcting relay. When the signal consists of an interruption in the current, the connecting- relay is connected in shunt with the valve by the commutator just after the break in the current, when the commutator is in synchronism. When the receiver lags, the relay is in circuit at the moment of current break, and owing to the valve not being conducting, the voltage rises sufficiently to operate the correcting relay (Fig. 6, not shown). To eliminate hunting the commutator segments may vary in width (Figs. 8 and 9, not shown). Two correcting relays may be used, one to increase and one to decrease the speed of the receiver and each connected to a separate set of brushes on the commutator (Fig. 7, not shown). Alternatively, three relays, one of which acts as a master relay, are operated from three lightsensitive cells or a commutator (Fig. 10, not shown). The commutator may have tapered segments and one of the brushes be moved across the surface by a speed governor so that the period during which the brush is operative varies with the speed of the receiver (Fig. 11, not shown). The correcting relay may cut in or out a resistance in the field-magnet circuit of the driving- motor, or an auxiliary field -winding (Fig. 12, not shown) or the relay may act on a phonic wheel. Specifications 269,834 and 275,318 are referred to.