baber/WOPTO huggingface dataset:
Patent GB-191802-A (GB)
Title: Improvements in valves closing after a predetermined interval
IPC: E03D3/04
Filed: 1921-10-13
Abstract: 191,802. Pillon, A., and Ravaz, E. Oct. 13, 1921. Valves closing after predetermined interval or flow.-A valve for delivering liquid for a predetermined time interval, is provided with a piston valve closing the outlet, and a lift valve combined with a slow leakage device closing the inlet. The body R is provided with an inlet a communicating with a cylindrical chamber c, j, and an outlet b communicating with a smaller chamber d. The body R is closed at one end by a plug f and at the other end by a cap i. The chamber d contains a cylinder l which is open at one end and provided at the other end with a perforated disc k. An extension m of the cylinder carries a handle n, while a central bore o forms a guide for a rod q provided with grooves u and a collar t at the other end. The disc valve g is mounted on the grooved portion of the rod by means of a sleeve which is capable of a slight longitudinal movement, and the valve carries a piston h sliding in the cylindrical chamber c. The end of the rod q carries a disc valve s which is pressed against its seating on the main valve by means of a spring v. Calibrated openings w are provided in the piston. When the valve is in the closed position, the outlet d is uncovered, but the valve g is closed by the spring v and the pressure of liquid behind the piston. When the handle n is pressed inwards, the outlet d is first closed and the rod q is then pressed inwards to open the valve s. Liquid then flows through the grooves u into the space e, relieving the pressure on the back of the piston h. The valve g is then fully opened, but the valve l remains closed. When the handle n is pulled out again, the valve l is opened, and liquid is free to flow through the device. The valve g is gradually closed by fluid pressure assisted by the spring v at a rate determined by the passage of water through the opening w, so that a supply of liquid is obtained for a definite period. Specification 28463/04 is referred to.
Patent GB-499949-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J19/34
Filed: 1938-09-19
Abstract: 499,949. Discharge apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Sept. 19, 1938, No. 27289. Convention date, Sept. 22, 1937. [Class 39 (i)] A discharge tube has at least one grid secured to a single supporting member sealed in the side wall of the tube, the grid supports being secured to a carrier member clamped by nuts to the supporting member. In the form shown, the wires 12 carrying the grid 13 are welded or otherwise secured to the carrier 14 clamped by nuts 10, 11 to the member 8 sealed in the side of the tube. The members 8 and 14 have apertures for the passage of the cathode leads 6, 7. Additional grids may be provided disposed in tubular projections on the tube.
Patent GB-322830-A (GB)
Title: Improvements in or relating to wireless receiving sets
IPC: H04B1/16
Filed: 1928-09-24
Abstract: 322,830. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Sept. 24, 1928. Drawings to Specification. Receiving-sets, construction of.-In a wireless set incorporating a main supply transformer, the components of the set (valve-holders, transformers, &c.) are mounted on a plate or frame of non-magnetic metal, such as copper, aluminium, or alloys thereof. Such a frame does not influence the leakage field of the supply transformer, which may therefore be annulled more readily than if an iron frame were used.
Patent GB-1272633-A (GB)
Title: Optical apparatus and method for projecting spatially periodically modulated records
Inventor: BOUCHE EDMUND LAWRENCE
IPC: G02B27/44
Filed: 1969-05-29
Abstract: 1,272,633. Spatial filtering. TECHNICAL OPERATIONS Inc. May 29, 1969, No.27362/69. Heading G2J. In optically constructing an image from a spatially modulated record, the record is supported at a predetermined location and illuminated with a light beam having substantial spatial coherence at the record, a lens forming a diffraction pattern of the record in a Fourier transform plane and a spatial filter is located in the Fourier transform plane and defining a first opening to pass at least a portion of a diffracted order of said diffraction pattern to provide a first information channel containing a first spatial frequency spectrum of the record, the filter also defining second opening of greater size than the first opening to provide a second information channel containing a second spatial frequency spectrum of the record of greater spatial frequency bandwidth than the first spectrum. In one embodiment the record 20' is illuminated with two sources of light emanating from apertures 60, 78 of mask 62, the beam 60 being partially coherent at record 20' and beam 78 being of less coherence. Lens 66 forms in its transform plane 70 a diffraction spectrum of the record formed by light beam 60. A spatial filter 76, which may comprise pairs of colour filters (e.g. red, green, blue) passes a desired portion of the first diffraction order of that spectrum. In the Fourier transform plane there are formed a plurality of angularly displaced diffraction patterns having a common zero order location. A larger aperture spatial filter 81 located in the same plane simultaneously passes the zeroth order of diffraction of light beam 78. The two transmitted portions are combined to form an image 74. The image may be in full colour. In such embodiment the record embodies a plurality of colour separation images respectively modulating unique spatial carriers, and each diffracted order characterises a unique one of the colour separation images. The second filter 81 may contain neutral density filter 82. If desired the output from the spatial filters may be linked to a video camera chain. In a further embodiment the spatial filter comprises the first opening for the first information channel, and the second opening is annular and surrounds the first.
Patent GB-225993-A (GB)
Title: Improvements in and relating to slicing machines
IPC: B26D7/06
Filed: 1923-10-31
Abstract: 225,993. Dye, C. D. Oct. 31, 1923. Cutting slices in succession. - A slicing- machine comprises a number of bread-holders 14 revoluble, with a shaft 10, within an inwardly flanged, stationary rim 24 supported from the shaft 10 by spokes 28, 29, the rim carrying a series of knives 36, Fig. 9, arranged in pairs with a converging space 37 between them whereby the loaves, which pass along the space 37, are sliced successively. The rim 24 is formed of sections, arranged end to end, the spokes 28, 29, together with the spokes 12, 13 carrying the bread-holders 14, being telescopic whereby the device may be collapsed when not in use, the supporting framework 66 - - 69 being of pivoted linkwork to permit it to fold within the limits of the collapsed machine. Springs 15, arranged on the spokes 12, 13, press the holders 14 outwardly, and the loaves pass through apertures 21, in guide plates 20 which are arranged end to end, radially in line with the holders 14. Any loaf may be prevented from feeding radially by means, associated with each guide plate 20, comprising U-shaped members 46, 47, adjustably secured by bolts, nuts and screws 49, 50, 51, the member 47 having holes 53 through which project spikes 54 carried by a spring-pressed plate 55 having an extension 56 connected to a screw-knob 61 by means of which the spikes may be projected or retracted and secured in either position. The knives 36 are adjustably clamped between the rim 24 and sectional strips 26 by screws 38 and wing-nuts 39. The slice thickness is regulated by a screw 63 bearing against a leaf-spring 64 which positions the loaf radially prior to engaging the first pair of knives 36. Adjacent to the outlet for the cut slices, a holder receives an ordinary table knife which cuts the partially severed slices in halves, the half-slices falling on a member 42, pivoted at 43 and having a flanged end 44, whereby they are deposited on one side of a receiving vessel, the member 42 swinging over to deposit the next pair of half-slices on the other side of the vessel. In this manner, if alternate loaves are rye and wheat bread, the slices are separated. The holders 14 are provided with spring-pressed false bottoms. Discs 30 are provided on each side of the machine which, when collapsed, lies substantially within the limits of the discs.
Patent GB-1356217-A (GB)
Title: Electronic latch circuit
IPC: H03K5/05
Filed: 1972-06-13
Abstract: 1356217 Transistor signal gating WESTINGHOUSE ELECTRIC CORP 13 June 1972 [22 July 1971] 27492/72 Heading H3T A latch circuit provides an output at 12 such as pulses E (Fig. 3, not shown) in response to an input at 4 such as pulses A, only after a control signal B has appeared at 6, a continuing enabling voltage being maintained at 5 by a charge store C18 as long as the signal pulses 4 continue, disappearance of the signal pulses A causing C18  to be discharged by a circuit 10 which normally provides the output signal E at 12. The input pulses A energize the primary of a transformer 16 when T15 conducts in response to a negative level at 6. One secondary charges C18 through amplifier 9 and diode 17; a second secondary drives the emitterof a normally conducting transistor T21 such that when an input pulse A ends, T21 is cut off and a transformer 22 rings to give an output E. Between input pulses A, C18 discharges through the primary of transformer 22 to +V, but is recharged by the next pulse at A so that voltage at 5 is maintained. If a pulse at A is missing, however, C18 discharges far enough for T15 to turn off and no further signals A can be transmitted until another control pulse B occurs at 6. The collection and emitter connections of T15, T21 may be reversed.
Patent GB-1018026-A (GB)
Title: A control arrangement for an a.c. supply system
Inventor: KENNEDY JAMES MILNE
IPC: H02J9/08
Filed: 1964-07-03
Abstract: 1,018,026. Stand-by systems. MULLARD Ltd. July 3, 1964, No. 27542/64. Heading H2H. A load 1, normally supplied from an A.C. source 5 by way of lines 2, 3, 4 and contactors M1, M2, M3, is provided with a standby supply service 9, constituted by a diesel engine 10 and an alternator 11, which automatically takes over on the occurrence of phase failure, over voltage, absence of voltage or under voltage of the main supply, as detected by detectors 6 and 8. The supply source 9 includes an engine starting unit 14 energized by outputs from the detectors 6 or 8. Detectors 12, 13 associated with the standby alternator 11 ensure that the standby voltage is of correct frequency and voltage before it is applied to the load. A suitable switching arrangement for the system is described with reference to Fig. 2 (not shown).
Patent GB-1193151-A (GB)
Title: Coloured Polymers
Inventor: KALOPISSIS GREGOIRE
IPC: C08F210/02
Filed: 1967-06-15
Abstract: 1,193,151. Setting lotion. L'OREAL. 13 June, 1968 [15 June, 1967], No. 27753/67. Heading A5B. (Also in Divisions C3 and C4] A setting lotion for hair or hair lacquer comprises a solution of a coloured copolymer having a backbone consisting of carbon atoms and containing side chains linked to the polymer backbone either directly or through methylene groups by amide linkages which side chains comprise dye residues, with the provisos that, ignoring the side chains containing dye residues and any other side chain containing a carboxyl group linked to the polymer either directly or through methylene groups, but not ignoring the methylene groups if present, the recurring units of the polymer are not all the same and that when only one of the types of recurring units comprise a dye residue, this unit is not of formula -#CH-#CH-. In examples (A) and   "(B) setting lotions consisted of the coloured copolymer, triisopropanolamine, ethyl alcohol and water; and in examples (C) and (D) hair laquers consisted of a mixture of the coloured copolymers, a methyl vinyl ether/ethyl monomaleate copolymer triisopropanolamine and alcohol together with an aerosol propellant which was a halogenated hydrocarbon.
Patent GB-278897-A (GB)
Title: Improvements in drills of the rolling cutter type
IPC: E21B10/10
Filed: 1926-11-05
Abstract: 278,897. Reed, C. E. Nov. 5, 1926. Borehole apparatus.-In a drill with a plurality of pockets in which toothed boring rollers are mounted, rotatable means are associated with the boring rollers to limit penetration of the latter and carry a part of the load. In Figs. 2 and 3, the drill head 1 has a pocket 3 divided by a bridge piece 4 and containing rolling cutters 8 on a pin 7. Side pockets 10, 10<1> have on their outer walls wide grooves 12 with semi-circular upper ends and open at their lower ends; on the inner walls are similar but smaller grooves 17. The grooves 12, 17 receive the ends of two-part bearing members 21, 22 on which, before insertion in the drill head, are mounted rollers, such as 32 or 42, and toothed cutters such as 33, 34, or 40, 41, the cutters and rollers being held against axial movement by cylindrical and frusto conical parts 27, 25 on the bearing members 22, 21 respectively; the cutter assemblies are locked by pins 23 passing eccentrically through the bearing members 21, 22 and into holes in the drill head eccentric to the semi-circular ends of the grooves 12, 17. The pins 7, 23 are locked by screws &c. and punch-holes 39 facilitate removal of the pins 23. The roller 33 has a sharp edge 43. In use, the rollers 32, 42 limit penetration, assist in supporting the load and facilitate passage of flushing water. In Fig. 5, pockets 50, 50<1> each receive two assemblies comprising a roller 52 and cutter 51 supported on bearings as above, the rollers and cutters of adjacent assemblies being reversely disposed and, placed closely together to give automatic cleaning. In both forms, the central cutters 8 may be omitted.
Patent GB-1156337-A (GB)
Title: Process for the preparation of Compositions of Synthetic Isoprene Polymers prepared in Solution
Inventor: HEIJ GERARDUS ENGELBERTUS LA
IPC: C08K5/17
Filed: 1967-06-16
Abstract: 1,156,337. Diene polymer compositions. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 16 June, 1967, No. 27817/67. Heading C3P. Compositions are prepared by mixing synthetic, carboxyl-free, isoprene solution polymers with minor proportions of organic nitrogen compounds having (1) at least two NH 2  groups, (2) more than 10 carbon atoms, (3) at least one acyclic radical containing a chain of at least 8 carbon atoms, and (4) a molecular weight of less than 15,000, provided that if the nitrogen compounds are polyethylene polyamines of molecular weight 200 to 500 or amino amides thereof with C 12-18  fatty acids, no plasticizing amounts of aromatic extender oils are incorporated. Specified polymers are of isoprene, optionally with styrene or other dienes, prepared in the presence of cobalt or nickel compound/ aluminium alkyl, lithium hydrocarbyl, sodium or " alfin " catalysts. The nitrogen compounds may contain at least two NH 2  groups and optionally secondary or tertiary amino groups, and may be amines, polyalkylene polyamines or reaction products thereof with halogen-substituted paraffins or halogenated polyolefins. In examples, polyisoprene containing 2,6-di-t.- butyl-4-methylphenol as antioxidant are blended with (I and II) reaction products of chlorinated paraffins and diethylene triamine, and the products further compounded with zinc oxide, carbon black, stearic acid, naphthenic oil, N- isopropyl - N<SP>1</SP> - phenyl - p - phenylene diamine and polymerized trimethyldihydroquinoline and vulcanizing ingredients.
Patent GB-782181-A (GB)
Title: Rotor blade locking means
IPC: F01D5/30
Filed: 1954-09-27
Abstract: 782,181. Bladed turbine rotors. SECORD, L. C., and PURVIS, J. T. Sept. 27, 1954, No. 27828/54. Class 110 (3). Blades 11 are mounted in a turbine rotor disc 14 by their roots 16 which are engaged in axially-directed serrated slots 12 formed in the periphery of the disc. One end of each blade root is formed with a projecting portion 17 of L-section, the open side of the section facing radially outwardly, and one face of the rotor disc between the blade-receiving slots 12 is formed with projections 19 of L-section, the open sides of the sections facing radially inwardly. The troughs afforded by the projections on the blade roots and on the rotor disc are in circumferential alignment and a wire 20 is threaded through the troughs whereby the blades are locked against movement in the axial direction. In a second embodiment, Fig. 3, each blade is locked by an individual wire of arcuate form 21 having a short bent end portion 21b, the plain end of each wire abutting the bent end of the adjacent wire. The end of one wire is bent in the radial outward direction and engages a hole 22 formed in the axiallyextending portion of one of the projections on the face of the rotor disc. This embodiment enables a single blade to be removed without releasing all the other blades. The troughs in the projections on the face of the rotor disc support the wire against the effect of centrifugal force, but the troughs of the projections on the blade roots and rotor disc face could face in the opposite directions. Reference has been directed by the Comptroller to Specification 712,112.
Patent GB-323528-A (GB)
Title: Improvements in or relating to locks for doors, drawers or the like
IPC: E05B55/00
Filed: 1928-09-28
Abstract: 323,528. Smith, T. Sept. 28, 1928. Latches, sliding; locks, bolts for; locking sliding latches.-The "P" shaped tail-piece of a sliding latch has a notch 25 in its lower edge engaging a projection 24 on a key-operated pivoted tumbler which is re. tained in position by a spring 12, one leaf of which engages a projection 26 on the tumbler and the other a shoulder 10 on the bolt head. Wing pieces 17 of the follower engage a wide end strip 11. Excessive angular rotation and lifting of the tumbler is prevented in the case of a tumbler with a parallelogramshaped gate by a projection 27 and a stud on the cover plate and in the case of a talon-shaped tumbler by two projections on the ends of the talon. With mortice locks the bolt head is detachable and is recessed on each side so that it can be reversed and a pointed projection is provided on the cover to prevent the lock from moving.
Patent GB-1279483-A (GB)
Title: Saw balde steel strip and saw blades made therefrom
IPC: C21D8/02
Filed: 1969-06-02
Abstract: 1279483 Working at specified temperatures UDDEHOLMS AB 2 June 1969 [31 May 1968] 27887/69 Heading B3V [Also in Division C7] Saw blade steel strip is made by heating a steel, containing at most 20% Cr, 0À2-1À5% C, and at most 6% of other alloying elements, which is at least 80% pearlite, to 550-790 C. but below the temperature at which any pearlite would transform to austenite, rolling the steel at this temperature with a reduction in crosssectional area of at least 60%, the reduction being so related to the rolling temperature as to break down the pearlite carbide lamellae to leave a ferritic matrix containing at least 40 carbide spheroids per 100 Á<SP>2</SP>.
Patent GB-376568-A (GB)
Title: Improvements in and connected with electric lighting, heating and power installations
IPC: H02J7/14
Filed: 1931-10-09
Abstract: 376,568. Supplying consuming. devices. BRANSOM, W. J., 4, Renters Avenue, Hendon, London. Oct. 9, 1931, No. 28080. [Class 38 (iv).] In a system in which two circuits, a light load circuit 6 and a heavy load circuit 9, are connected in parallel to a battery j and a prime-mover driven generator a is automatically started and connected in parallel with the battery when the current exceeds a predetermined value or when a load such as v is connected to the circuit 9, a high resistance q is included in the load circuit 9 to restrict the current taken from the battery until the generator a is operating at full voltage. A relay r short circuits the resistance q when the generator voltage exceeds a predetermined value.
Patent GB-391154-A (GB)
Title: Improvements relating to coin-operated gas and similar meters
IPC: G07F15/00
Filed: 1931-10-09
Abstract: 391,154. Prepayment mechanism for meters. UNITED GAS INDUSTRIES, Ltd., 51, Lincoln's Inn Fields, and SMITH, E. W., 186, Kennington Park Road, both in London. Oct. 9, 1931, No. 28141. [Class 27.] In prepayment gas and similar meters, particularly those used for check purposes in connection with gas fires, both the coin holder mechanism c with the operating handle c<1> and the coin slot, and the index scales d are arranged to face upwardly with respect to the meter casing a. The prepayment mechanism is contained in an auxiliary casing b disposed at the side or rear of the meter casing a, and this casing b also receives the coin-box f which by means of a slotted extension plate f<1>, engages a rotatable lug g holding the retaining ring c<2> of the coin-holder mechanism. The coin-box is locked in position by a padlock the hasp of which is passed through the lug g. A rotary handle e for zeroizing the quantity mechanism is also disposed on the top of the casing. The coin-operated mechanism may be of the kind described in Specification 354,797.
Patent GB-1443955-A (GB)
Title: Packaging
IPC: B65D75/58
Filed: 1973-06-13
Abstract: 1443955 Packages JOHN DICKINSON & CO Ltd 12 June 1974 [13 June 1973] 28142/73 Heading B8C A carton contains goods in a sealed envelope of flexible sheet material, the envelope having a separate top panel 10 which is peelably sealed to the rest of the envelope so that it can be peeled away to open the top of the envelope without removing the envelope from the carton. The envelope can be side-loaded into the carton which has a hinged or separate lid. The envelope is formed from two superimposed webs, one wider than the other and turned over along opposite edges so as to be overlapped by the narrower web. The webs are peelably sealed along the overlapping edge portions and cut into separate envelopes. After being filled each envelope is closed by transverse seals at least one of which is peelable. A transverse seal may be spaced inwardly of the end of the envelope to form a pull tab. There may be a peelable coating of the sealant over all, or only in a pattern on, the surfaces of the webs. The webs may be of polyester or polypropylene, and may be comprised of laminates, examples being specified, including polyvinylidene chloride coated cellulose film.
Patent GB-267185-A (GB)
Title: Improvements relating to gables for machines for softening jute, flax, hemp and other fibres
IPC: D01B9/00
Filed: 1925-11-10
Abstract: 267,185. Urquhart Lindsay & Robertson Orchar, Ltd., Anderson, J. K., and Forbes, A. G. Nov. 10, 1925. Softening fibres.- In a machine for softening jute, hemp, flax, &c. of the type in which the gable frame 1 and the upstands 5 are formed as separate units, the gable comprising a cast frame on the upper edge of which are detachably mounted a plurality of upstands 5 formed as separate units, the upstands are weakened at 8 near their junction with the gable frame so that in the event of fracture due to overload the fracture will be at the weakened locality and the frame will be undamaged. The upstands are desirably of mild steel and of circular section and the ends remote from the weakened part 8 are formed as screw threaded studs 9 engageable by clamping nuts 10 which serve to hold down the spring boxes 11. The gear-case supporting lug is formed as a pin 12 accommodated in a socket in an upstahd and is shaped to receive the lid 13 of the usual gear case enclosing the usual roller-driving gear wheels.