baber/WOPTO huggingface dataset:
Patent GB-1205708-A (GB)
Title: A.c. reference signal producing circuit
IPC: H03K17/725
Filed: 1968-04-24
Abstract: 1,205,708. Inverters for standby supply systems. BOBG-WARNER CORP. 24 April, 1968 [10 May, 1967], No. 8405/70. Divided out of 1,205,707. Headings H2F and H2H. An A.C. reference signal for use in the standby electrical supply system described and claimed in Specification 1,205,707, comprises an inverter energized from a D.C. source and driven by means to ensure the synchronism of the reference signal with the normal A.C. supply to the standby system. An inverter comprises two switching transistors 200, 201 energized from a regulated D.C. supply 130, 131 the output of the transistors having a substantially square waveform.,; This output is supplied to the primary winding of a transformer 202 together with a filter circuit having an inductor 206 and a capacitor 208 the function of which elements are to ensure that the A.C. reference signal produced by the secondary winding of the transformer 202 has a sinusoidal waveform. The driving signals for the transistors 200, 201 are produced by a circuit energized from an A.C. source 212, the driving signals being taken from the secondary winding of a transformer 219. A phase shifting device having an inductor 214, variable resistor 215 and capacitor 216 is connected between the A.C. source 212 and the primary winding of the transformer 219. Thus the A.C. reference signal may be locked in synchronism with the A.C. source 212 by adjustment of the phase shift circuit. The amplitude of the A.C. reference signal is controllable by a variable resistor 209 and the A.C. source 212 is received from the normal A.C. supply of the standby supply system.
Patent GB-908082-A (GB)
Title: Improvements in or relating to domestic fireplaces
Inventor: BROADBENT ERNEST
IPC: F24B1/19
Filed: 1960-03-10
Abstract: 908,082. Shaker grates. DUNSLEY HEATING APPLIANCE CO. Ltd. March 10, 1961 [March 10, 1960], No. 8430/60. Class 126. A domestic fireplace of the type in which combustion air is supplied from outside the building through a pipe below floor level is provided with a shaker grate 22 mounted on a ledge 24 and ribs 26 of a frame 20 above a well 10. The grate is shaken from side to side by a lever 30 which engages a recess 28 in the front of the grate 22. The lever 30 is attached to the same spindle 18 as a butterfly damper 16 in the air supply duct 14 so that the same handle may be used to shake the grate and control the combustion air supply. A removable cover 36 is mounted above the grate in a recess 38 of the frame 20. This cover extends all round the grate and prevents ash falling into the spaces between the grate and the frame 20.
Patent GB-428561-A (GB)
Title: Improvements in metal-link cartridge belts for automatic guns
IPC: C10B21/06
Filed: 1934-03-17
Abstract: 428,561. Cartridge belts. MANCINI, N., 20, Piazza d'Azeglio, Florence, Italy. March 17, 1934, No. 8454. Convention date, March 20, 1933. [Class 92 (ii)] Relates to disintegrating metal-link cartridge belts for machine guns of the kind in which each unit comprises two flat metal plates 1, 2 hinged together, the part 2 of one unit overlapping the part 1 of an adjacent unit and the parts being held together by a cartridge c inserted between projecting clips 3, 3<1> on the part 1. According to the invention, the overlapping part of one unit is provided with a slot x through which the clip 3<1> on the adjacent unit passes, the units being thereby loosely linked together independently of the cartridges. The eyelets 5, 5<1> for the hinge pins are made oval in shape to permit of a limited twist of the belt when the gun is at elevation. A stop 4 is provided on the part 2 for the base of the cartridge. The Specification as open to inspection under Sect. 91 also describes, with reference to Fig. 3 (Cancelled), a construction of unit in which the overlapping part 10 has a single clip 11 fitting between the clips 7, 7<1> on the other part 6 which also carries the stop 8 for the base of the cartridge. This subject-matter does not appear in the Specification as accepted.
Patent GB-579598-A (GB)
Title: Improvements in the scavenging system of two stroke cycle internal combustion engines
IPC: F02B75/02
Filed: 1945-04-06
Abstract: 579,598. Two-stroke scavenging. AKTIEBOLAGET ATLAS DIESEL. April 6, 1945, No. 8597. Convention date, April 18, 1944. [Class 7 (ii)] A two-stroke internal-combustion engine, Fig. 1, has piston controlled inlet ports 4, 5, 6 and 7 and exhaust ports 12 two at least of inlet ports 4 and 5 being directed perpendicularly towards the centre plane 8 and bounded by the walls 13 and 14, which are tangential to the cylinder, making sharp turns to form the faces 15 and 16 either side of the centre plane, the angle of the ports with relation to the cylinder axis decreasing as it approaches the sharp bends, shown by the arrows 20 and 21 on Figs. 5 and 6. The two adjacent ports 6 and 7 have the sharp bend faces 24 and 25 respectively which may be either directed to the cylinder axis or to a point two thirds the radius of the cylinder towards the ports 4 and 5. In a modification for a unifiow cylinder Fig. 7, the tangential walls 50, 52 have sharp bend faces 54 and 56 respectively, and further sharp bend faces 55, 57 for the second series of ports. Figs. 9 and 10 show by arrows 76 and 75 the angles of the ports to the cylinder axis. The sharp bend faces may be contained wholly in the cylinder liner 11 and the radial depth of the ports before the sharp turn must be less than two thirds of that measured close to the opposite axial confining edge of said ports.
Patent GB-449925-A (GB)
Title: High pressure valve
IPC: F16K3/12
Filed: 1935-03-19
Abstract: 449,925. Valves. CLORIUS, O. T., 6, Vesterfaelledvej, Copenhagen. March 19, 1935, No. 8622. Convention date, March 19, 1934. [Class 135] To prevent wire-drawing, surfaces in highpressure lift, plug-lift, or gate valves are formed to provide a narrow convergent annular conical passage. In the plug-lift valve, Fig. 1, the apex angle of the valve member 3 is slightly larger than the apex angle of the seat 2, so that the steam is guided to pass the throttling surfaces substantially parallel thereto. Wear at the inlet edge 11 will not reach the sealing region 9. The faces of the valve member and the seat may be further extended, as at 4, beyond the sealing region, with different conicity. Guide ribs may be formed on the lower part of the valve member 3, of the same conicity as the seat 2, the guide pin 7 being then omitted. If the steam passes downwards the cone 4 is lengthened and the cone 3 shortened. In the lift valve, Fig. 4, the valve member is formed as a flat re-entrant cone, wear taking place mainly at 13. In the gate valve, Fig. 5, the plate on the inlet side is concaved as at 14, and the plate on the outlet side convexed as at 15. According to the Specification as open to inspection under Sect. 91, the valve member 3, 4, Fig. 3 (Cancelled), may have at its lower end a cone 12 of the same conicity as the seat 2, forming a second sealing surface subject, however, to wear. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specifications 19368/13, 258,540, and 325,001, [all in Class 135].
Patent GB-547515-A (GB)
Title: Improvements in air cooling systems for internal combustion engines
IPC: F01P7/02
Filed: 1941-07-09
Abstract: 547,515. Cooling cylinders. CROSS, R. C., and CROSS MANUFACTURING CO. (1938), Ltd. July 9, 1941, No. 8647. [Class 7 (ii)] In an air cooling system for twin engines arranged so that when one is in operation the other is ready as a stand-by, means are provided for automatically controlling the flow of the cooling-air so that it is supplied only to the engine which is in use. Fig. 1 shows twin aircraft engines 3, 4 supplied with cooling-air from a duct 1 open at each end 2 and connected to supply and return conduits 6, 7 for each engine. These conduits are controlled by flap valves 8, 9 which are operated automatically by a piston in a cylinder 10 acted on at opposite sides by oil from the lubrication systems of the two engines. The piston actuates the valves through push and pull cables 11 or other connections.
Patent GB-954624-A (GB)
Title: Improvements in or relating to dynamo-electric machines
IPC: H02K23/56
Filed: 1963-03-05
Abstract: 954,624. Dynamo-electric machine coils. SIEMENS & HALSKE A.G. March 5, 1963 [March 6, 1962], No.8675/63. Heading H2A. In a dynamo-electric machine as claimed in the parent Specification, wherein the armature winding 4 is an open-ended cylinder supported at each end by an insulating member that is spaced from the corresponding end of the magnet 5 and is coaxially rotatable relatively thereto, the winding consists of a single wire. The wire is wound obliquely about the axis to form a zig-zag pattern and extends to a collector 2. The members may be insulating discs 3 secured to the shaft 1 and one or both of which are cemented to the cylinder.
Patent GB-235985-A (GB)
Title: Improvements in and relating to apparatus for mixing and/or emulsifying materials
IPC: B01F15/00
Filed: 1924-04-07
Abstract: 235,985. Sonsthagen, A. April 7, 1924. Stirrers.-In mixing or emulsifying machines the blades a, a<1> have a wedgeshaped, or stream line cross section, and are rotated with the thick edge leading. Either or both sides of the blades may be grooved, and the blades are set to give the material an oscillating motion while progressing, the blades a being, for this purpose, slightly ground away at x.
Patent GB-236627-A (GB)
Title: Improvements in and relating to devices for selecting color combinations
IPC: G01J3/52
Filed: 1924-04-07
Abstract: 236,627. Adler, H. H. April 7, 1924. Colour scales. - Apparatus for selecting harmonious colour combinations, for use e.g. in household decoration, comprises a colour chart on which are colour areas of various individual hues arranged in parallel columns 2, 3, 4, and a mask 5, usually constructed as an envelope to contain the chart. The mask 5 is shiftable to exhibit a single colour area. in each column, the areas 8, 9, 10 thus exhibited a harmonious combination. The colour areas 8, 9, 10 may be of different sizes indicative of the relative prominance when used for decorative purposes, and the apertures in the mask may be in a single straight line or staggered as shown.
Patent GB-450425-A (GB)
Title: Improvements in and relating to chairs
IPC: A47D11/02
Filed: 1935-03-20
Abstract: 450,425. Convertible chairs. PENROSE, P. 0., 52, High Street, Highgate Village, London. March 20, 1935, No. 8762. [Class 52 (ii)] A dining chair convertible into a child's high chair has carried by the back a series of hinged and linked members capable of unfolding to form the high chair. In one form, flaps 15, Fig. 1, are pivoted on vertical axes between cross-bars 11, 12 of the back, and hinge forward to form the sides of the high chair, and levers 20, 21 pivoted to the side posts of the back carry a member 24 which constitutes the back of the high chair when extended. A member 25 pivoted between the side posts constitutes the seat when folded down. A tray 26 is fixed to the levers 20, and a folding foot-rest 28 is connected to the levers 21 by links 27. The seat 17 of the dining chair may be hinged to the rear legs, and the front legs hinged to the seat so that the whole chair can be folded, links 32 and a strut 33 serving to hold the chair open in use. In the form shown in Fig. 3, a flap 45 forming the seat of the high chair is hinged to a cross-bar of the chair back, and a second flap 46 forming the back is hinged thereto. Levers 55 are connected to the flap 45 by links, and to the folding tray 48 and foot board 50 by links 52. In the form shown in Fig. 4, the rear legs 71 of the chair are moved rearwardly and the back 72 forwardly when the high chair is unfolded, the side posts being connected to the seat 73 by links 77 and to the support 86 for the high chair seat 74 by levers 82.
Patent GB-1362302-A (GB)
Title: Separation apparatus
IPC: B01D63/08
Filed: 1972-02-25
Abstract: 1362302 Separation apparatus RHONEPOULENC SA 25 Feb 1972 [25 Feb 1971 1 June 1971] 8832/72 Heading B1X Separation apparatus useful in filtration, reverse osmosis and gas permeation comprises (Fig. 1) two rigid end plates E each having adjacent one of its ends at least one inlet or outlet orifice 6, a plurality of plane membrane support plates B each carrying a semi-permeable membrane which has no apertures in it. As support plates having sheet means 23, 25 for the removal of fluid which has crossed the membranes, first and second apertures in each support plate B, the first apertures being adjacent one end of the support plates and aligned with the inlet orifices forming a first duct through the. stack, the second apertures being adjacent the other end of the support plates and aligned with one-another forming a second duct through the stack, means connecting the first and second ducts with each of the chambers, at least one intermediate plate F which with another or with an end plate forms a subassembly, plate F having an opening 7 aligned wih one duct, and having no openings aligned with the other duct, and optionally distributor plate(s) D (Fig. 3) between each pair of support plates B. Support plates B each have one or two recesses in the plane of the plate, each recess bearing (Fig. 13) lattice 31 which may be a grid formed from heat-sealed polyethylene fibres, porous plate 32 of sintered or perforated polyethylene, paper, felt, or a non-woven element of polyethylene glycol terephthalate, filter paper 33 and membrane 34, these components being held in position by adhesive tape H and jointing member J. Each jointing memiber J is held within positioning rims in its support plate. In operation, liquid entering at 6 in Fig. 1 flows transversely through the lower duct in each element and upwardly in parallel across the face of each membrane to the transverse outlet duct (see for example Fig. 10, not shown). Permeate leaves by channels such as 23, 25 (Fig. 1) in support plates B.
Patent GB-1062095-A (GB)
Title: Single-phase or three-phase load-breaking isolating switch
IPC: H01H33/32
Filed: 1964-03-03
Abstract: 1,062,095. Pneumatic actuation of switches. FABRIEK VAN ELECTRISCHE APPARATEN VOORHEEN F. HAZEMEIJER & CO. N.V. March 3, 1964 [March 4, 1963], No. 8899/64. Heading H2B. A three-phase on-load isolator comprising three switch units 13, 14, 15 of the type described in Specification 325,401, linked by a bar 16, is actuated by a pneumatic piston 20 and cylinder 19 arrangement including a magnet system 22, 23, 24, 26, 28 imparting quick-action to the piston. To close the switches 13, 14, 15 air pressure is increased above the piston 20 until it is sufficient to free a soft magnetic plate 28 from the annular polepieces 22, 23 of the permanent magnet 24 when the piston moves rapidly downwards, actuating the switches, and bringing a second plate 26 into contact with the other end of the polepieces 22, 23. Similarly to open the switches pressure is increased below the piston until plate 26 is separated from the magnet. Spring discs 27, 29 prevent damage to the plates 26, 28 when they strike the polepieces.
Patent GB-577686-A (GB)
Title: Improvements relating to keys
IPC: E05B19/18
Filed: 1944-05-10
Abstract: 577,686. Keys. STERNER, B. May 10, 1944, No. 8941. [Class 44] A key consisting of a holder in which a number of bits of different lengths are permanently secured comprises a sleeve 7 which surrounds the holder and the ends of the bits. The bits 4 of any desired length are fitted in grooves 3 on each side of the holder 1 and have recesses engaged by lugs 6 on the holder. The sleeve is held on the holder by resilient ears and engaging recesses in the holder. The handle 2 of the key is curved to facilitate correct insertion in the lock by the feel of the key. Specification 519,739 is referred to.
Patent GB-588438-A (GB)
Title: Improvements in, and relating to, the manufacture of files
IPC: C23C8/00
Filed: 1944-05-11
Abstract: In the manufacture of files, teeth are cut on a blank of low or medium carbon steel containing less than 0.5 per cent. of carbon, the file so produced being carburized so that the case extends at least to the root of the teeth and the carburized part surface hardened substantially only to the depth of the case or the root of the teeth by high frequency induction heating to a temperature of 760-800 DEG C.  The heating may be effected by an inductor coil of the single turn type shaped to give uniform heating of the teeth or by means of a concentrator or focus conductor.  After carburizing the file is quenched in air, oil or water and after the heating in water or brine.  The files may be passed through the inductor in a horizontal direction by rollers or other conveying mechanism or in a direction inclined to the vertical by a roller table which is itself inclined.
Patent GB-879725-A (GB)
Title: Folding containers
IPC: B65D5/06
Filed: 1958-03-20
Abstract: 879,725. Cartons. WENDT, W. March 20, 1958 [March 20, 1957], No. 9031/58. Class 18. A polygonal container, formed from the blank shown in Fig. 1, is closed by folding in triangular surfaces 15-22, between two rectangular surfaces 9, 10 (see Fig. 4), and sealing a region across the top of the folded portion, the lower extremity c, Fig. 7, of the sealed region terminating on a line at which opposed folding surfaces commence to overlap (see lines a, b, Fig. 7). This arrangement avoids the formation of the small channel usually found in the seal region and caused by the inability of the sealing tool to penetrate into the channel. A flap 8 is glued or welded to a panel 1 with the free edge of the flap 8 directed outwardly so forming a water vapour or aroma tight seal. The portions 9, 10 may have pre-broken openings therein for drinking straws. The material of the carton may have a thermoplastic coating on one side. The base of the carton is folded flat, the method of folding being shown in Fig. 10.
Patent GB-1476273-A (GB)
Title: Purification of cyanuric acid
IPC: C07D251/32
Filed: 1975-03-05
Abstract: 1476273 Purifying cyanuric acid FMC CORP 5 March 1975 9087/75 Heading C2C Pure hydrated cyanuric acid is obtained by digesting crude cyanuric acid, at an elevated temperature in a solution containing a mineral acid; cooling the solution; separating the precipitated cyanuric acid crystals; dispersing them in water at below 57‹ C.; agitating the dispersion for 0À25-5 hours, to hydrate the crystals and recovering free-flowing, hydrated, crystalline cyanuric acid free of hard cementlike masses.
Patent GB-640713-A (GB)
Title: Manufacture of penicillin derivatives
IPC: C07D499/04
Filed: 1947-04-03
Abstract: Esters of hexahydrogenated penicillin S-dioxide are prepared by acidifying an organic solvent solution of a starting material having the formula <FORM:0640713/IV (b)/1> where R represents a lower alkyl radical having 1-4 carbon atoms and R2 represents benzyl, reacting the acidified solution with hydrogen under pressure in the presence of platinum oxide until 3 mols. of hydrogen have been consumed and recovering a product wherein the substituent R2 is the corresponding hexahydrogenated benzyl radical.  The starting material is produced by oxidizing a penicillin ester.  In an example, methyl penicillin-G.S-dioxide of the above formula, where R is methyl is hydrogenated and methyl hexahydropenicillin-G.S-dioxide is produced. The Specification as open to inspection under Sect. 91 comprises also the preparation of derivatives in which R2 is a substituted benzyl radical, e.g. a derivative is obtained by hydrogenating a compound of the above formula in which R is methyl and R2 is methoxybenzyl.  This subject-matter does not appear in the Specification as accepted.
Patent GB-549269-A (GB)
Title: Improvements in electric cables
IPC: H01B9/00
Filed: 1941-07-19
Abstract: 549,269. Electric cables. CALENDER'S CABLE & CONSTRUCTION CO., Ltd., HUNTER, P. V., ALLCOCK, H. J., and FAIRFIELD, R. M. July 19, 1941, No. 9157. [Class 36] A cable comprises a conductor surrounded with clearance under all working conditions, by a smooth tube of a non-metallic plastic material loaded to render it electrically conductive, a dielectric consisting wholly or mainly of normallysolid polymers of ethylene surrounding the tube in close contact therewith. The polymerized ethylene may be compounded with a minor part of other thermo-plastic material, such as polyisobutylene, to increase its flexibility. The tube, which is loaded with powder such as carbon or finely-divided metal, may be of thermo-plastic material similar to the dielectric, or of thermosetting material such as natural or synthetic rubber compositions, preferably neoprene compositions. Within the tube, a lubricant, preferably graphite, may be provided. In Fig. 1, the conductor 1, conducting tube 2 and dielectric 4, are surrounded by a conductive layer 5, a lead &c. sheath 6, and a protective covering 7 preferably of impregnated paper or fabric tape ; the layer 5 may be of the same material as the tube 2, or of metal tape, or metallized paper tape, or a wrapping of metallized paper tape covered by a wrapping of woven tape of which some or all of the warp threads are of copper wire. In a multicore cable, Fig. 2, the cores are as in Fig. 1 up to the layer 5, and the interspaces between the cores may be provided with fillers, the cores being surrounded by a sheath 16 and a covering similar to covering 7. The tube 2 is preferably formed around the conductor by extrusion, and the dielectric is applied around the tube 2 by extrusion at low temperature preferably in layers of 50 to 100 mils thickness and under vacuum. The conductor may have its outer surface smoothed as by drawing the completed strand through a die. The material of the tube 2 preferably has a specific resistance less than 500 ohms/cm<3>.