baber/WOPTO huggingface dataset:
Patent GB-490353-A (GB)
Title: Improvements in syphonic flushing apparatus
IPC: E03D1/14
Filed: 1938-02-09
Abstract: 490,353. Water - waste - preventers. EDWARDS, L. Feb. 9, 1938, No. 3992. [Class 26] In a siphonic apparatus of the type in which one or more siphons 2 are mounted in a bulk supply water tank 1, and means are provided for stopping the siphonic action after a predetermined quantity of water has been discharged, the means comprising a water container 3 from which water is sucked into the siphon during the discharge, and which, when emptied, admits air to break the siphonic action, the container is carried by a float 4, so that, when charged with water, its position with relation to the water level in the tank remains constant. The container comprises a tube 3, closed at the bottom by a perforated disc 6, which may be retained by a screwed ring 7. A gauze filter disc may be provided. At the top the container is closed by a screw cap 8 provided with air holes 11, and to which is secured a discharge tube 9 sliding on a tube 10 connected with the siphon. The float 4 surrounds the middle of the container so that its top is supported above water level. Whatever the level of water in the tank 1 the amount in the container is the same so that the same volume is discharged at each flush. The flush may be started manually or by any other means.
Patent GB-1086282-A (GB)
Title: Binary-coded decimal code scale
IPC: H03M1/00
Filed: 1965-01-29
Abstract: 1,086,282. Electric selective signalling. LICENTIA PATENT - VERWALTUNGSG.m.b.H. Jan. 29, 1965 [Jan. 29, 1964], No. 4012/65. Heading G4H. The lead or lag brush used for reading the lowest order bit of each decimal denomination of a binary coded decimal scale is determined by the combined effect of the top two bits of the previous denomination. Brushes for the other tracks are selected by the one preceding track only.
Patent GB-693998-A (GB)
Title: Manufacture of wire brushes
Inventor: HICKMAN DENNIS LEON
IPC: A46B3/12
Filed: 1951-02-20
Abstract: 693,998. Wire brushes. SOUTHFORD, Ltd. June 14, 1951 [Feb. 20, 1951], No. 4070/51. Class 19. The strands of a wire brush of the type without a central plug are held tightly together and then fused as by welding. A metal band may be used to hold the strands together and may afterwards be removed. A cap may be shrunk or crimped over the head of the brush (Fig. 4) or a supporting plate may be screwed to the weld (Fig. 1).
Patent GB-676360-A (GB)
Title: Improvements in or relating to boilers of the kind including a boiler furnace tube
IPC: F23J1/00
Filed: 1949-02-15
Abstract: Dyes of the general formula <FORM:0676360/IV (c)/1> wherein R is an alkyl radical containing from 1 to 12 carbon atoms or is benzyl, R1 is a hydrocarbon radical, and X is an acid radical, are prepared by reacting a 2-methyl-5-carboxybenzoxazole cyclammonium salt with an ortho ester of a carboxylic acid.  3 : 31-Diethyl-5 : 51-dicarboxy-9-methyloxacarbocyanine iodide is prepared by heating together 2-methyl-5-carboxybenzoxazole and diethyl sulphate, adding pyridine and ethyl orthoacetate, and refluxing, and finally adding to aqueous K1 solution and acidifying.  3 : 31 - Diethyl - 5 : 51 - dicarboxy - 9 - ethyloxacarbocyanine iodide is similarly prepared. The dyes may be converted to the corresponding bromides, chlorides, or thiocyanates.  3 : 31-Diethyl - 6 : 61 - dicarboxythiacarbocyanine iodide and dyes containing nitro and sulphonamido groups and fluorine atoms are referred to.
Patent GB-1413965-A (GB)
Title: Edible multi-layered product having decreased colour  diffusion
IPC: A23C9/154
Filed: 1972-01-28
Abstract: 1413965 Layered edible products UNILEVER LTD 26 Jan 1973 [28 Jan 1972] 4183/72 Heading A2B A packed edible product comprises a first liquid layer in contact with but of a different colour to a second liquid layer, both layers having a similar continuous phase, the first layer containing a dispersed colouring agent, and the osmotic pressure in the two layers being more or less equalised by adjusting the contents of sugar thereof. The first layer may comprise yoghourt, quark, custard, blancmange, sauce or cream, and may be whipped, or a fruit or simulated fruit preparation. Examples relate to the preparation of "Vlaflip" yoghourt containing jellied pieces, and a custard with a sauce.
Patent GB-700191-A (GB)
Title: Improvements in or relating to apparatus for enlarging photographs
IPC: B32B27/00
Filed: 1951-02-21
Abstract: 700,191. Photographic projection printing. BERGOIGNAT, J. G. Feb. 21, 1951, No. 4219/51. Class 98(1) Apparatus for use in projection printing comprises a platform a for receiving printing paper, at least one screen g made of diaphanous material, and three rods c for adjustably locating the screen in spaced relation to the platform, each rod being externally screw-threaded at one end and engaging screw-threaded inserts b in the platform, the other end of each rod engaging the screen g. Each screen may be accommodated in a frame d as of wood, the frames having complementary recesses and projections so that they may be superposed in registry. A colour filter or light shield may be associated with one screen. The apparatus is used in carrying out a process for avoiding the necessity of retouching individual prints. According to the process at least one screen is rendered translucent so by covering the screen with small drops of a varnish and the rods are adjusted so that the screen is at a distance from the platform a not greater than half the distance between the platform and the negative in an enlarger. The negative image is then projected on to the platform and the translucent coating on the screen is then reduced in thickness or-removed at selected locations so that any defects in the negative do not appear in its image, The printing paper is then placed on the platform a and prints taken.
Patent GB-541778-A (GB)
Title: Improvements in liquid filters
IPC: B01D24/00
Filed: 1940-03-06
Abstract: 541,778. Filters. SAUSSURE, G. G. March 6, 1940, No. 4221. [Class 46] Oil is filtered upward through layers of Fuller's earth confined between perforated plates 7, 16, 22, 27, 32, which have an inperforate outer portion so that the flow therethrough is restricted to the centre and channelling along the wall of the casing is prevented. The plates abut against flanged split rings 21 which take into annular recesses 20. Ring gaskets 15 at the top of each layer and annular recesses 43 tightly packed with the filtering-medium also prevent passage of liquid along the wall. As shown the liquid to be filtered is supplied under pressure through a pipe 8 to a preliminary filter comprising a flat perforated cylinder 9 and a layer 11 of glass fibre enclosed at top and sides in cotton waste 12. There is a final layer E of cotton waste and glass fibre. Sheets of burlap are provided in association with the perforated plates.
Patent GB-1459245-A (GB)
Title: Device for electronically controlling the instant of ignition in an ignition system for an internal combustion engine
IPC: F02D45/00
Filed: 1974-01-31
Abstract: 1459245 Timing ignition ROBERT BOSCH GmbH 31 Jan 1974 [1 Feb 1973 26 Sept 1973] 04520/74 Heading F1B [Also in Division H3] The instant of ignition in an I.C. engine is controlled by means comprising a pulse producing stage 2, Fig. 1, which produces a pulse A beginning at, say, 30 degrees before T.D.C. and ending at T.D.C. The leading edge of pulse A triggers a monostable 3 to provide a pulse B which resets a sawtooth generator 10 which thereupon begins to deliver a sawtooth voltage C to a storage circuit 11. A monostable 4 is triggered by the trailing edge of the pulse A to emit a controlling pulse D to the storage circuit 11 to cause it to store the voltage depending on the duration of the pulse A and therefore on the engine speed, decreasing as the speed increases. This voltage E is fed by way of two function generators 15, 16 to an adder 17 which produces an output U2 which is a function of engine speed and also of the inlet manifold pressure P acting on the function generator 16. When the sawtooth voltage C has attained the value U2, a comparator 13 triggers the ignition circuit 7 via a changeover switch 6, the effect of this being that the ignition is advanced as the speed increases. Below a predetermined low engine speed, a speed threshold circuit 12 which senses the speed as measured by the voltage E changes over the switch 6 so that the ignition circuit 7 is triggered directly by the pulses A via an input terminal 5. In a modification, Fig. 5, the switch 6 and the speed threshold circuit 12 are omitted, and the predetermined low speed is sensed by a circuit 19 comprising a monostable 190 which is triggered by the leading edge of pulse A to deliver a pulse G to an AND gate 191, pulse A also going to another input of the AND gate, which emits a pulse H which commences when the pulse G ends and ends when pulse A ends. Pulse H thus exists only when pulse A is longer than pulse G, i.e. at speeds below the'predetermined low speed. Pulse H increases the voltage U3 at the output of the adder 17 so considerably that the sawtooth voltage C does not exceed the voltage U3 until pulse H has ended, i.e., at T.D.C. Ignition is therefore delayed until T.D.C. The ignition circuit 7 comprises a monostable 70 controlling an ignition pulse producing circuit 71. The duration of the  unstable period of the monostable 70 (and therefore the duration of the ignition pulse) is raised in accordance with the speed-representative voltage E by means of a circuit 18 which feeds a control voltage to the monostable which increases as the speed decreases but increases more rapidly when the speed falls below a threshold value, whereby the ignition pulse duration increases correspondingly.
Patent GB-1300856-A (GB)
Title: Nut assembly
IPC: F16B37/08
Filed: 1971-02-12
Abstract: 1300856 Nuts WIELAND-WERKE AG 12 Feb 1971 [3 March 1970] 4544/71 Heading F2H A split nut 7 comprises two halves 8, 9 connected together by resilient means so that they are movable towards and away from each other diametrically of the nut bore to allow the nut to be passed between the lips 6, 7 of a housing slot 3 and then expand to grip the side walls 31, 32 of the slot. The nut 7 may be of metal or plastics integral with oval connecting means 11 (Fig. 1). Alternatively the connecting means 11 may be in two halves held together by the nut halves 8, 9. In Fig. 4 the nut halves are connected together by spring steel members 13, 14 joined at their ends. In Figs. 5, 6 a U-shaped spring steel connecting member is used. The nut may have more than one threaded bore (Fig. 11, not shown). In Fig. 1, a wall anchor 1 is secured to a metal window or door frame 2 by a bolt 37 which engages the split nut 7 housed in a slot 3 of the frame 2.
Patent GB-1065107-A (GB)
Title: Trowelling machine
IPC: E04F21/24
Filed: 1965-02-02
Abstract: 1,065,107. Concrete levelling machine. E. GAJEWSKI. Jan. 18, 1966 [Feb. 2, 1965], No. 4572/65. Heading E1G. A trowelling machine has a movable carriage 6 carrying at least one rotatable trowelling member 11 moved towards and away from the concrete surface each revolution by cam means 14, 19. The machine frame is carried in a stationary frame having guide channels 2 and levelling means 5 and is moved thereon by rack 4 and pinion 10 gearing driven from a motor on the carriage. The motor also drives one or more vertical shafts 3 which are reciprocated vertically by the cam means to move the trowel 11 in and out of action each revolution. Means may be provided to move the carriage 6 to the top of the channels 2 for transport.
Patent GB-176772-A (GB)
Title: Improvements in or relating to cutting mechanism for chenille fabrics and other material
IPC: D03D39/00
Filed: 1922-02-16
Abstract: 176,772. Mohawk Carpet Mills, Inc., (Assignees of Hathaway, E. F.). March 8, 1921, [Convention date]. Void [Published under Sect. 91 of the Act]. Chenille.-In a machine for weaving chenille and cutting it into strips, the severed strips are moistened by a fluted roller 61 and finally formed on a heated grooved roller 70.
Patent GB-673223-A (GB)
Title: Improved blade for rotary hoes
IPC: A01B33/10
Filed: 1950-02-23
Abstract: 673,223. Rotary hoe blades. HOWARD AUTO-CULTIVATORS, Ltd. Feb. 23, 1950 [March 1, 1949], No. 4637/50. Class 6(i) Blades for rotary hoes are forged with a top part 10 of uniform thickness and rounded edges 11, bolt holes 12 being provided for fixing the blades to a rotor. The cutting edge 13 is arcuate and extends to the tip 14 which is tapered from the back 16 to the leading point. The tip is tapered inwardly to the top 17 and the trailing edge 15a is also tapered inwardly from the back 18. A bend 19 forms the blade into a vertical part and a horizontal part, the bend being set upward from the leading edge to the trailing edge. The vertical part has a flat back and a front which is tapered from the cutting edge 13, the taper intersecting the centre line in a curve 22 from which the taper to the trailing edge is less acute. The horizontal part which has maximum thickness at the trailing edge 15a has a slightly convex bottom and a concave top tapering from the trailing edge 15a to the cutting edge 13.
Patent GB-1079906-A (GB)
Title: Dual aeration method and apparatus
Inventor: ROSS DAVID SIMON
IPC: C02F3/20
Filed: 1966-02-03
Abstract: <PICT:1079906/C1/1> Raw sewage and activated sludge are pumped into the front end of tank and due to the positioning of aerators 22 and baffle 74 adopt a generally figure-of-eight movement to the discharge end 21.  A pipe 28 carries treated liquor and sludge to a sedimentation tank (not shown).  Froth preventing sprays 46 may be incorporated.
Patent GB-567044-A (GB)
Title: Improvements in fluid flow regulating means
IPC: G05D16/06
Filed: 1943-03-23
Abstract: 567,044. Regulating fluid flow. TECALEMIT, Ltd., and PARSLOW, W. J. March 23, 1943, No. 4748. [Class 135] A porous mass made from sintered granular material or particles of metals, glass, sand, porcelain, wood, or plastics united to form a rigid whole, or constituted by a bundle of fine wires or capillary tubes in the path of fluid. The mass may be applied to inlets or outlets as shown in Figs. 2, 4 and 5, and adjustable shutters or screens used for varying its effective area.
Patent GB-869684-A (GB)
Title: Improvements in or relating to backs for armchairs and like pieces of furniture
IPC: A47C7/46
Filed: 1959-02-11
Abstract: 869,684. Seats. JORGENSEN, P. F. W. Feb. 11, 1959 [Feb. 24, 1958], No. 4754/59. Class 52(2). An arm chair has a back frame consisting of two side frame members 10 between which is pivoted on pins 34 a back sup port frame consisting of side members 24 and upper and lower members 26, 28, this frame being adjustably secured at its lowe end to the side frames by a rod 30 guided in holes in bars 24 and engageable at its ends in notche in fittings 32 so that the sea depth can be varied.
Patent GB-113178-A (GB)
Title: Improvements in or relating to Distance Registers or Odometers.
Inventor: COWEY LEONARD EUGENE
IPC: G01C22/00
Filed: 1917-04-03
Abstract: 113,178. Cowey, L. E. April 3, 1917. Odometers for motor-vehicles &c. A counter D is driven by a bevel-wheel d adapted to engage with either of a pair of bevel-wheels c, c<1> mounted on a floating shaft C driven by worm-gearing E, F. When the direction of rotation of the driving-shaft B is reversed, the shaft C moves axially, so that the wheel d is driven in the same direction as before. A pawl h<3>, operated by an eccentric h<1> driven from the shaft C, turns a, toothed ring J which carries a pointer moving over a dial indicating the daily mileage. The ring J is adapted to be set at zero by a hand-operated toothed wheel L engaging external teeth j on the ring J. The shaft B may also drive a speed indicator of the kind described in Specification 109,160.
Patent GB-681148-A (GB)
Title: Improvements in or relating to means for suppressing ripple on electric supply systems
IPC: H02M1/15
Filed: 1949-02-22
Abstract: 681,148. Converting. GENERAL ELECTRIC CO., Ltd., and GILCHRIST, D. C. Feb. 16, 1950 [Feb. 22, 1949], No. 4839/49. Class 38 (ii). In a system for suppressing ripple in a supply system, of the kind wherein ripple from the supply is applied to a valve or other electric amplifier (e.g. a magnetic amplifier) which injects its output into the system in opposition to the ripple therein, the amplifier is provided with means for rendering it more responsive to one or more selected frequencies, or band of frequencies, than to others. As shown in Fig. 3, the ripple on a D.C. supply line 12, 13 fed by a compound wound machine 10, 11, 14 is reduced by a two-stage valve amplifier 22, 29 which receives the ripple input voltage over condenser 16 and feeds it back with phase reversal to the series commutating field 14 by transformer 34. The gain of the amplifier is increased by a positive and frequency-selective feedback circuit 37-40. The amplifier may be tuned to one or more particular ripple frequencies.
Patent GB-911946-A (GB)
Title: Psilocybin and psilocin and processes for their preparation
IPC: A61K31/404
Filed: 1959-02-11
Abstract: The invention comprises the psychotropically active compounds Psilocybin of the formula: <FORM:0911946/IV (b)/1> and Psilocin of the formula: <FORM:0911946/IV (b)/2> and a process for their extraction from fungal material of the genera Psilocybe, Stropharia and Panaeolus or biological variants or mutants thereof, by treatment with water or a water-miscible organic solvent, degreasing the product, isolating the active material by chromatography and removing any halogen material present.  Examples detail the extraction of the active compounds from Psilocybe mexicana Heim, P. caerulescens Murill var. Mazatecorum Heim, P. Zapotecorum Heim, P. semperviva Heim and Cailleux, P. Aztecorum Heim, Stropharia cubensis Earle preferably by cultivation on a synthetic medium, extraction of the dried fruit bodies with methanol or aqueous methanol, degreasing the extract with petroleum ether and chloroform, chromatographing the product on cellulose, eluting with aqueous butanol (detection of active compounds is effected with the Keller reagent), removing halogen by treatment with silver carbonate and purifying the active compounds by crystallisation.  The compounds may be formulated into psychotherapeutic compositions with inert carriers suitable for sub-cutaneous injection or oral administration.
Patent GB-773419-A (GB)
Title: Improvements relating to vacuum brake apparatus for railway and like vehicles
Inventor: MARSH GERALD CRANTON
IPC: B60T13/46
Filed: 1955-02-18
Abstract: 773,419. Railway vacuum brakes. GRESHAM & CRAVEN, Ltd. Feb. 1, 1956 [Feb. 18, 1955], No. 4882/55. Class 103 (1). In a vacuum brake system for rail-car sets in which high vacuum release reservoirs are arranged to supplement the exhauster capacity so that it is necessary to use a large capacity value s controlled by the passenger's emergency lever t for allowing atmospheric air to flow in to operate the local release valve d, it is possible for the car to be stopped in a tunnel where it may be difficult to locate the position of the open valve. A double valve k, m is therefore provided, which when operated by a solenoid n energized by closure of a switch r, p by the train driver maintains valve m closed and causes the brakes to be temporarily released.
Patent GB-285493-A (GB)
Title: Electrical watch
IPC: G04C1/04
Filed: 1928-02-17
Abstract: 285,493. Comptoir GÚnÚral de Vente de la Montre Roskopf Soc. Anon. Vve. C. L. Schmid et Cie. Feb. 18, 1927, [Convention date]. Winding-aparatus. -A motive spring (not shown), is rigid with the armature spindle 4 and is periodically wound by an electromagnet 2. A coupling spring 25 extends between a contact nose 18 rigid with the armature 5 and an insulating piece 19, controlling the second contact 22, which piece is loose on the armature shaft 4. The piece 19 has two notches 27, 28 separated by a shoulder 29 and the'second contact 22 is carried by a spring blade 23. Fig. 2 shows the parts when the armature 5, owing to the watch spring, has moved so far counterclockwise that contacts 18 and 22 have met to close the magnet circuit. The armature 5 thereby returns clockwise, stressing the motive spring and at the same time the nose 18 levers up the contact 22 so that the end 26 of blade 23 is forced into recess 27. At the end of an anticlockwise rotation a pin 20 on the nose 18 pushes the piece 19 back sufficiently for the end 26 to leave the recess 27 for the recess 28, closing contacts 18 and 22.
Patent GB-855859-A (GB)
Title: Improvements relating to nuclear reactors
Inventor: AIKIN ARTHUR WATSON
IPC: G21B1/00
Filed: 1956-02-17
Abstract: The coolant of a thermonuclear reactor comprises lithium which may be alloyed with about 7% sodium and which may also contain a suspension of fine particles of lithium hydrided with one of the isotopes of hydrogen, e.g. lithium deuteride.  Specification 851,355 is referred to.
Patent GB-912284-A (GB)
Title: Improvements in or relating to electric bus duct apparatus
Inventor: SKEATS WILFRED FRANCIS
IPC: H02G5/06
Filed: 1961-02-10
Abstract: 912,284. Bus duct systems. GENERAL ELECTRIC CO. Feb. 10, 1961, No. 5026/61. Drawings to Specification. Class 36. An isolated-phase bus duct system has at least two spaced-apart highly-conductive and electrically continuous ducts each enclosing a phase conductor mounted on insulators, the ducts being interconnected at each end of their run to form a closed loop. In such a system for interconnecting a generator and an associated transformer the ducts are insulated from the earthed metallic housings of the generator and transformer and a single connection is made between each of these housings and its respective end of the duct run. Each phase conductor is mounted coaxially within its cylindrical duct, the ducts being electrically interconnected at each end by means of, e.g., two aluminium channels or an aluminium plate apertured to receive the ducts in such a way that the induced current flowing in a duct is distributed substantially equally at all diametrically opposed points along its length.
Patent GB-196438-A (GB)
Title: An improved folding box
IPC: B65D5/36
Filed: 1922-02-21
Abstract: 196,438. Norman & Son, T., and Watts, C. I. Feb. 21, 1922. Folding boxes.-The inner wall or liner B of a folding box is made of four separate pieces each of which is secured to one of the walls of the body A so as to fold down therewith while each piece has a stiffening flange B<1> at one end adapted to fold over the flangeless end of the adjacent piece in the erect condition. Each piece has a top stiffening flange B' and the body is creased as shown on two opposite sides; the lid may be made to fold in the same way as the body A.
Patent GB-475014-A (GB)
Title: Furnace for the manufacture of tubes made of glass or analogous material
IPC: C03B5/14
Filed: 1937-02-19
Abstract: 475,014. Electric furnaces. DESCARSIN, M. Feb. 19, 1937, No. 5050. Convention date, Feb. 20, 1936. [Class 39 (iii)] A furnace for making tubes of glass or analogous material comprises a refractorv annular crucible 2 with electrodes 4 arranged on its internal and external peripheries and connected to a source of high frequency current. Quartz tubes 3 may be arranged between the crucible and the electrodes. The crucible may have upper and lower zones of different external diameter. The electrodes have thickened edges.
Patent GB-1375874-A (GB)
IPC: B27K3/32
Filed: 1972-02-03
Abstract: 1375874 Wood preservatives DR WOLMAN GmbH 3 Feb 1972 [4 Feb 1971] 5080/72 Heading A5E A water-soluble, arsenic-free wood preservative comprises an alkali metal or ammonium chromate or bichromate and/or chromic acid or chromic anhydride, a zinc and/or copper compound and optionally boric acid or a borate, and cadmium in a concentration of from 0.2-4% by weight. The chromic acid or chromic anhydride may be wholly or partly replaced by a mixture of an alkali metal bichromate or monochromate and sulphuric acid, sodium bisulphate, nitric acid or hydrochloric acid.