baber/WOPTO huggingface dataset:
Patent GB-284887-A (GB)
Title: Improved receiving set having preliminary tuned circuits for radio-waves
IPC: H03J5/00
Filed: 1927-03-23
Abstract: 284,887. Baertsoen, J. A. March 23, 1927. Tuning apparatus, construction and control of. -A number of tuned-circuit units, set to fixed wave-lengths, are arranged to be brought into circuit in successive steps by suitable switching- means. Each unit is of the type shown in Fig. 2, comprising a fixed condenser 11, 12 mounted on a honeycomb coil 13, with plug-in terminals 14; or one plate 17, Fig. 3, of the condenser may be divided into a number of armatures which cooperate with the second plate 16 to give a stepped variation in the capacity value. Fig. 4 shows one type of switching mechanism. A succession of tuned circuits A - - D of which the unit D comprises three alternative capacity values K1, K2, K3, form the input to the high-frequency valve 23 and co-act with a series of similar units G - - J forming corresponding tuned-anode circuits. These are linked up in pairs by means of two bus bars 18, 19 carrying contacts O - - O<6> coacting with studs a - d<11>, and contacts pl - - p<6> coacting with studs g - - j<11> in steps as the control knob 20 is rotated from position 1 - - 9. In the "off" position a contact 24 controlling the filament supply is broken alternatively the bus bars may be arranged circularly and co-act with rotary instead of sliding contact members; or a push-button switch system of control may be provided. Specification 238,338 is referred to.
Patent GB-590465-A (GB)
Title: Improvements in or relating to electron discharge devices
IPC: H01J23/16
Filed: 1944-04-28
Abstract: 590,465. Electron discharge apparatus. RAYTHEON MANUFACTURING CO. April 28, 1944, No. 8059. Convention date, March 30, 1942. [Class 39 (i)] [Also in Group XXII] An electron discharge device comprises a cathode and an anode block formed of a series of stacked laminas, each lamina having a cathode space and at least one other space forming a cavity resonator connected to the cathode space. Fig. 1 shows a magnetron in which the anode block is built up of sheet copper stampings 8 of the form shown in Fig. 2, each having a central aperture 10 and apertures 12 to form the cathode space and resonance cavities respectively, intermediate stampings 9 being of similar form, but extended to form cooling fins, the enclosure being completed by end caps 3, 4. The upper cap is provided with a pipe 15 enclosing the cathode leads and a pipe 16 through which passes a lead 27 connected to a loop 7 in one of the resonance cavities for withdrawal of energy. An outer pipe 28 may be provided to form a concentric transmission line. The cathode comprises a heater 21 supported within a sleeve 20 of nickel or other conductor coated with emissive material and provided with tantalum endshields 23. The cathode is centred by a mica plate 24. In manufacture of the anode block, the laminas are mounted on a jig provided with pins engaging the apertures, a thin layer of silver or tin solder being applied at the outer end of the smaller laminas (see Group XXII). The laminas are then clamped and passed through a hydrogen furnace with or without the jig ; in the former case the jig pins should be oxidized or graphitized to prevent sticking.' The assembly may then be placed in a coin or sizing die and any slight inaccuracy removed by pressing. Reference has been directed by the Comptroller to Specifications 582,936 and 588,185.
Patent GB-197794-A (GB)
Title: Improvements in apparatus for supplying liquid fuel to the cylinders of internal combustion engines
IPC: F02M67/00
Filed: 1922-03-21
Abstract: 197,794. Coombs, E. A., and Lundgren, C. W. March 21, 1922. Valve-gear.-Valves 21, 23, for admitting liquid fuel and compressed air respectively to a cup 22 within the cylinder, are actuated through levers 26 by a slowly moving cam 28, provided with a plurality of projections 29.
Patent GB-749937-A (GB)
Title: Improvements in and relating to stationery units, form sets or assemblies
Inventor: CASTLETON ALBERT EDWARD
IPC: B41L1/22
Filed: 1954-03-19
Abstract: 749,937. Manifolding units; envelopes. LAMSON PARAGON, Ltd. March 19, 1954, No. 8185/54. Classes 16 and 146(2) A stationery unit comprises two or more superposed sheets or sheet portions connected together at or adjacent their leading edges, the outermost sheet or portion being provided with a pocket or recess adjacent to but spaced from the leading edge and from the edge of which pocket a tongue extends towards the trailing edge to guide the feeding element of a feeding device into the pocket. The feeding device is described and claimed in Specification 749,936 [Group XVI] and the units are placed in a pile on a sharply curved -base so that the tongue of the top unit becomes outwardly positioned with respect to the unit to assist the feeding. Manifolding units. As shown in Fig. 1, a manifolding unit comprises sheets 1, 2 with carbon 3 interposed secured together by a' line of adhesive a adjacent to the edge 4, a stub portion 6 being formed by lines of perforations 5. A tongue 7 of semicircular shape extends from the line 5 of the top sheet 1 to form an opening 8. A number of modifications are described, in which the line of adhesive lies on the edge 4; is replaced by a line of spots of adhesive or by staples; or a central short line of adhesive on the edge 4 is joined by lines of adhesive to the outer edges of the tongue 7; with the line of adhesive along the edge 4, the tongue 7 may be positioned in the stub portion 6. Envelopes. As shown in Fig. 8, the wrapper envelope 21, with tongue 22 to engage a slot 23, is provided with a tongue 24a in the top sheet portion 24, spaced from the fold line 21a to form the pocket between the edge of the tongue and the fold.
Patent GB-1574963-A (GB)
Title: Brush for the application of liquid materials
IPC: A46B7/00
Filed: 1977-02-25
Abstract: When painting overhead there is the risk of the coating compound running down along the brush. In order to avoid this, at the deepest point of the trough-shaped brush head surface there is a funnel-shaped opening (1) which leads to a cavity (3) in the handle (2). In addition, the brush head (4) is surrounded by a lip (4c) bent outwards. By this means, excess coating compounds, in particular wood preservatives, can quickly run off into the cavity in the brush handle. The running-off is helped in that the brush hairs of the paintbrush are collected together in bundles (5). In order to be able to clean the brush better, the brush head is composed of a brush core (4b) which carries the brush hairs and of a brush-head hollow body (4a), which can both be removed. <IMAGE>
Patent GB-350551-A (GB)
Title: Improvements in and relating to combined water and air pump units
IPC: F04D9/04
Filed: 1930-03-14
Abstract: 350,551. Centrifugal pumping sets. DRYSDALE & CO., Ltd. and YOUNG, J., Bon-Accord Works, Ferry Road, Yoker, Glasgow. March 14, 1930, No. 8243. [Class 110 (i).] A pumping unit to deal with the condensed steam and accompanying air of a vacuum steam heating installation consists of a water-ring air pump c arranged above a centrifugal water pump d in the same casing a ; the rotors of both pumps are carried by the spindle b driven by an electric motor n or a turbine through the coupling 16. The pump casing a has an upward extension o which supports the motor. A bearing h is provided between the two pump rotors, and the spindle b is supported in this bearing and another bearing m arranged above the stuffing-box k. The vessel g, which receives the returns of the heating system, is rigidly connected to the pump casing and consists of a main chamber r and an upper auxiliary chamber u having a domed top with a vent z. A float v in the auxiliary chamber operates a needle valve w which controls a passage connecting the two chambers. A float 10 in the main chamber is attached to a rod 11, by which it operates a switch device 12 so that the motor is started when the water in the receiver g reaches a predetermined height and is stopped when the water falls to a predetermined level. Or, the switch may be controlled by a spring-loaded diaphragm to start the motor when the vacuum in the receiver falls below a predetermined value. The inlet l of the water pump d is connected to a port 2 near the bottom of the receiver ; sufficient space is left below the port 2 in the receiver for the collection of sludge. The suction port f of the air pump c is connected to the pipe 4, the upper end of which has openings 5 communicating with the top of the main chamber r. The air pump discharge passes through the pipe 6 to the auxiliary chamber v and to the atmosphere by the vent z. The water for the air pump is drawn from the auxiliary chamber v by the pipe 7.
Patent GB-1427698-A (GB)
Title: Fluid-directing members for turbomachines
IPC: F01D5/18
Filed: 1969-02-14
Abstract: 1427698 Turbine blades-cooling GENERAL MOTORS CORP 14 Feb 1969 [23 Feb 1968] 8302/69 Heading F1T A cooled turbine blade assembly 7 comprises a hollow porous metal blade 8 including an airfoil portion with spaced walls and a hollow attaching portion 17 integral with the airfoil portion, a base member 9 into which the attaching portion 17 extends, at least one tube 29 extending from wall to wall of the attaching portion 17, the base member 9 including a portion filling the tube(s) 29 and integral with the remainder of the base member external to the attaching portion, and an entrance 32 into the airfoil portion for a cooling fluid through the base member 9 and the attaching portion 17. The base member 9 is an integral casting consisting of a platform 10, a stalk 11 and a root 12, the latter being of multiple dovetail configuration for retention in suitable slots in a turbine rotor. The blade walls may be of a three layer laminated structure and Fig. 9 illustrates, greatly enlarged, the outer layer 24, middle layer 25 and inner layer 26 before they are bonded together to form the laminated sheet which is then formed into the blade. The inner layer 26 has holes 37 and is provided with bosses 38 which space the layers 25, 26 so that cooling air can flow to holes 39 in the middle layer 25, which layer has bosses 41 on its outer surface. The outer layer 24 has cooling air holes 42 distributed over its surface. The holes in the inner and outer layers are in registry and the holes in the middle layer are out of registry with these. At the leading edge of the blade the structure is somewhat different, the outer layer having a number of very small holes which overline small aligned slots in the middle and inner layers. This structure provides a considerable flow of cooling air out of the leading edge of the blade for film cooling and also facilitates the forming of the sharply radiused leading edge.
Patent GB-471984-A (GB)
Title: Novel or improved machine for delivering lengths of sealing tape
IPC: B65H35/00
Filed: 1936-03-20
Abstract: 471,984. Supplying adhesive tapes ; strip-feeding mechanism. MASSEY, O. March 20, 1936, Nos. 8317 and 28474. [Class 73] [Also in Group XVI] A machine for delivering predetermined lengths of sealing tape from a roll comprises a spring-returned hand lever the stroke of which can be varied by means of adjustable stops and which is fitted with double pawls either of which can be rendered inactive whereby the feed can be effected on the forward or return strokes, i.e., either immediately before the length is cut or immediately after the last length has been cut ; in the latter case, the strip hangs for a time after being moistened. As shown in Fig. 1, the operating mechanism comprises a pair of pawls 21, 22 mounted on the operating lever 1, and engaging a wheel 3 which effects the feed of the tape past a moistening device of know form. The pawls are connected by a spring 24 so as to move simultaneously past the dead centre, and the pawl 21 is rendered inoperative by a removable peg 27. The operative stroke of the lever with this adjustment is clockwise, and at the end of the stroke a fixed peg 25 engages the tail 26, Fig. 8, of the pawl 22 and frees it. Further movement of the lever operates a knife 44, Fig. 12. When the pawl 24 is rendered inoperative, the wheel 3 is operated to feed the tape on the return stroke of the handle and the shaft 2 is moved so that the wheel 3 engages the feed wheel 34 directly, instead of indirectly through an idler 35. The length of stroke is controlled by means of spring radial members 7 of different length and adapted to engage a projection 16 on the handle 1. The projection can be moved from one leg of the slot 20 to the other so as to engage one or other of the radial stop members 8, which can be adjusted to engage radial slots in the edge of a disc. Specification 472,311, [Group XVI], is referred to.
Patent GB-576393-A (GB)
Title: Improvements relating to projection lanterns employing electric arcs
IPC: G03B21/20
Filed: 1944-05-03
Abstract: 576,393. Optical-projection apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., TUCK, F. A., and CASTELLAIN, A. P. May 3, 1944, No. 8327. [Class 97 (i)] [Also in Groups XI and XL] An alternating current arc projector lamp with a concave main refiector A is provided with an auxiliary reflector D in the neighbourhood of the axis of the beam and of such curvature as to reflect rays originating at the carbon C<2> back on to the main reflector, by which they are brought to a focus substantially at the tip of the carbon C<1>. The temperature of the latter carbon during negative half-cycles is thereby increased to a value approaching that obtaining during the positive half-cycles, so diminishing cyclic-light fluctuation.
Patent GB-696976-A (GB)
Title: 3-5-diiodopyridylmercaptocarboxylic acids
IPC: A61K49/04
Filed: 1951-04-11
Abstract: The invention comprises 3 : 5-diiodopyridylmercaptocarboxylic acids in which the mercapto group and carboxylic group are joined by a hydrocarbon radicle of 4-7 carbon atoms, and the alkali metal, ammonium and amine salts of these acids, which are opaque to X-rays. They are prepared by reaction between a 3 : 5-diiodo-4-pyridinethiol and a halogenated carboxylic acid salt, or a 3 : 5-diiodo-4-halopyridine and a thiocarboxylic acid in alkaline conditions.  Examples are given of the preparation of 3 : 5 - diiodo - pyridyl - 4 - mercapto - carboxylic acids in which the group joining the mercapto and the carboxylic groups is:- <FORM:0696976/IV (b)/1> Numerous other divalent hydrocarbon radicles including branched chain alkylene, arylene, and cycloalkylene groups and olefinic and acetylenic unsaturated groups are also specified for the above bridge.
Patent GB-1345689-A (GB)
Title: Repeat cycle timers
IPC: H01H43/12
Filed: 1972-02-23
Abstract: 1345689 Cams; ratchet clutches GULF & WESTERN INDUSTRIES Inc 23 Feb 1972  [1 April 1971] 8401/72 Headings F2K and F2C [Also in Division H1] Adjustable-contour cams in an electric time switch (see Division H1) are driven by a oneway spider clutch. The cams each comprise a basic hub member 120 (Fig. 5) having an annular ridge 136 and peripheral serrations 140, on to which segments 150, 152 (Figs. 3 and 5) or tappet members 190, 192, 194 (Fig. 6) are a snap fit. As shown in Fig. 3, the cam surface 154 acts via a pivoted follower arm 50 on the retractive actuator 78 of a microswitch 70, but in the embodiment of Fig. 6, a protrusion 206 on a lateral leg 56 of arm 50 co-operates with a fixed hose 204 to retain the arm 50 after depression which thus requires a positive camming lift to release it. As shown, the tappet 192 will depress arm 50 and tappet 194 will lift it, while tappet 190 will depress and lift arm 50 in relatively rapid sequence. The clutch (Fig. 11) comprises an input member 272 coupled to a spider having resilient arcuate fingers 264 which engage serrations 254 in output member 250 to provide a oneway drive. The members 272 and 254 are preferably of rigid plastics material while the spider is moulded from a more resilient plastics material.
Patent GB-127883-A (GB)
Title: Improvements in and connected with Submerged Torpedo Tubes.
IPC: F41F3/10
Filed: 1917-06-13
Abstract: 127,883. Armstrong, Whitworth, & Co., Sir W. G., and Waddingham, W. H. June 13, 1917. Launching torpedoes.-Consists in making submerged torpedo tubes, which contain a piston behind the torpedo, with a forward part d of the same diameter as the torpedo b, and a rear part e of larger diameter containing the piston a. In the form shown, the larger rear part is made with guide-ribs c, and the piston a is brought to rest by rams f fixed to the tube in line with recesses g in the front face of the piston, these recesses being filled with water. The effect of this construction is to cause the water in front of the piston within the larger part of the tube to force the torpedo forwards more quickly than the forward movement of the piston due to the admission of compressed air behind it; the torpedo then leaves the tube about the time the piston is stopped. Means are provided for allowing the air confined behind the piston to escape into the torpedo room; and the piston is driven back by the water pressure.
Patent GB-1354864-A (GB)
Title: Densitometer
IPC: G01N9/00
Filed: 1972-02-24
Abstract: 1354864 Measuring density electrically ITT INDUSTRIES Inc 24 Feb 1972 [8 April 1971] 8543/72 Addition to 1328888 Heading G1N In a vibration densitometer of the type described and claimed in Specification 1328888 the probe assembly is rigidly attached to a housing structure mounted on the pipe-line, having a substantially greater mass than the vibrating parts. As shown Fig. 7, the outer sleeve 22' of the probe has a welded boss 36' threaded on to a housing 77 which also carries a body 84 on which the amplifier 61' is located. The housing 77 is itself threaded into a boss 76 of a pipe-line 75 carrying the test fluid. The mass of body 84 is 10 to 80 times that of vibrating tube 83. This is said to minimize errors due to pipe-line vibration.
Patent GB-565955-A (GB)
Title: Improvements in synthetic resinous compositions for moulding bearing or sealing members
IPC: C08L61/10
Filed: 1943-05-28
Abstract: Self-lubricating bearings and sealing members are moulded from a composition consisting of 45.4 per cent of about equal amounts of a thermo-setting synthetic resin (e.g. a phenolaldehyde resin) and asbestos, 27.3 per cent of lead or copper powder or flakes, 9.1 per cent antimony and 18.2 per cent graphite.  The Specification as open to inspection under Sect. 91 of the Acts describes compositions comprising (1) 30.3 per cent resin and fibre, 60.6 per cent copper and 9.1 per cent graphite; (2) 40 per cent resin and asbestos, 20 per cent graphite and 40 per cent copper or lead; (3) 85 per cent resin and fibre and 15 per cent graphite.  This subject-matter does not appear in the Specification as accepted.
Patent GB-142267-A (GB)
Title: Improvements in the ventilation of boots and shoes
IPC: A43B7/06
Filed: 1919-04-07
Abstract: 142,267. Dillon, J. C. April 7, 1919. Ventilating.-A sock k, Fig. 5, is provided with grooves m in the portion, preferably thickened, under the arch of the foot. These grooves communicate at their inner ends with a row of perforations g, Fig. 1, in the middle of the boot sole, and at their outer ends with the interior of the boot, as shown in Fig. 2.
Patent GB-861317-A (GB)
Title: Improvements in or relating to fuel oil supply systems for oil fuel burners
Inventor: COOPER REGINALD BRUCE
IPC: F23K5/02
Filed: 1956-03-21
Abstract: 861,317. Supplying liquid fuel to burners. ASSOCIATED BRITISH COMBUSTION Ltd. March 28, 1957 [March 21, 1956], No. 8821/56. Class 75 (1). An oil fuel supply system for a burner comprises an oil heater 1, thermostatic means for starting a pump 2 when the oil in the heater reaches a predetermined temperature, an oil valve 4 through which the oil is returned to the suction side of the pump and which closes when the circulating oil reaches a higher predetermined temperature, and a second oil valve 3 controlling the passage of oil to the burner and adapted to be opened by the build up of oil pressure caused by closure of the first oil valve 4. The latter valve 4 is a solenoid valve and is closed by a thermostat 5a responsive to the temperature of the oil returning to the suction side of the pump. The oil pressure also operates a spring returned device controlling a damper for the burner. The oil heater may be de-energised by a thermostat when a predetermined temperature is reached.
Patent GB-750474-A (GB)
Title: Improvements in or relating to tin plate baking pans
Inventor: RUSSELL JOHN JAMES
IPC: A47J36/02
Filed: 1951-04-17
Abstract: The making pan of the parent Specification is modified in that the opaque tin oxide coating is formed only on the outer surface, a transparent tin oxide coating being formed on at least part of the inner surface.  The organic bread releasing film may be applied only to the transparent oxide coating or to both oxide coatings. Specification 717,912 also is referred to.  Reference has been directed by the Comptroller to Specification 717,912 [Group VI].ALSO:The baking pan of the parent Specification is modified in that the opaque tin oxide coating is formed only on the outer surface, a transparent tin oxide coating being formed on at least part of the inner surface.  The pan is formed as in the parent Specification, the inner surface being masked during the anodising treatment, and the pan being thereafter immersed in a passivating medium may have a pH of 7-12 and need not contain added chemical oxidising agents although oxygen, peroxides, chromates, chromic acid or perborates may be added; in an Example, a bath containing 0,1-10 per cent sodium hydroxide and oxygen or an oxidising agent or both is used at 40 DEG -100 DEG C.  The organic bread releasing film may be applied only to the transparent oxide coating or to both oxide coatings.  Reference has been directed by the Comptroller to Specification 717,912, [Group VI]ALSO:The baking pan of the parent specification is modified in that the opaque tin oxide coating is formed only on the outer surface, a transparent tin oxide coating being formed on at least part of the inner surface.  The organic bread releasing film may be applied only to the transparent oxide coating or to both oxide coatings.  Specification 717,912 also is referred to.  Reference has been directed by the Comptroller to Specification 717,912.
Patent GB-380006-A (GB)
Title: Improvements relating to garment presses
IPC: A47G25/72
Filed: 1932-03-29
Abstract: 380,006. Garment presses. TULLIS, Ltd., D. & J. and JACK, W., Kilbowie Iron Works, Clydebank. March 29, 1932, No. 8935. [Class 138 (ii).] Comprises the interconnection, by a flexible wire or equivalent, of the valve controls of two ironing-presses, each control being of the type described in Specification 376,802, whereby the opening of the fluid pressure inlet valve to one press for closing that press is accompanied by the opening of the exhaust valve of the other press to open the second press. The whipple tree 8, Fig. 3, pivotally mounted in the common stem of the pressure inlet valve 3 and exhaust valve 6 and acted on by the two bell-crank levers 12 pivoted on the shaft 14, also acts on one arm 17 of a lever pivoted at 19 and of which the other arm 18 contacts with a screw 25. This screw is carried by one arm of a lever 23 pivoted at 24, Fig. 1, of which the other arm is connected by the wire 21 to the corresponding arm of the lever 23a of the other press, whereby the rearward movement of the valve stem of the first press is accompanied by the forward movement of the valve stem of the other press.