baber/WOPTO huggingface dataset:
Patent GB-556614-A (GB)
Title: Improvements in arrangements for eliminating unwanted signals in amplitude modulated electrical signal communication systems
IPC: G01S1/02
Filed: 1942-04-09
Abstract: 556,614. Wireless aerials. STANDARD TELEPHONES & CABLES, Ltd., and MADDOCK, A. J. April 9, 1942, No. 4695. [Class 40 (v)] An antenna system transmitting amplitudemodulated signals which are polarized in one plane, but cause parasitic radiation polarized in another plane, is provided with means for radiating auxiliary constant-amplitude waves of the same frequency as the main and parasitic radiations and having substantially the same plane of polarization as the latter, thereby masking the parasitic signals which would otherwise be received. For example, in the case of an overlapping beam course-indicator formed by half-wave vertical elements placed on a building having a screened or mesh-covered roof, currents are set up in the roof or screen which radiate horizontally-polarized waves having in general different polar patterns from those of the main radiation. Should the receiving antenna not be vertical, for example if the aeroplane carrying it banks, a component of horizontally-polarized radiation will therefore be received which may carry signals of a different character from those due to the main radiation, leading to false courseindication. Fig. 1 (a) indicates such unwanted signals as dots of magnitude e<SP>1</SP> on a steady signal of magnitude e, and Fig. 1 (b) indicates the result of adding according to the invention, steady radiation of magnitude E polarized in the same plane. It is shown that, if e<SP>1</SP> = 2e, giving signals of 6 decibels, then if E = 16.7e the signal will be reduced to 0.5 decibels, which will not be detected. The auxiliary radiation is preferably in approximately phase-quadrature with the main radiation, it being shown in the Specification that if the two are in phase, or phase-opposition, false signals can be received in certain circumstances when the receiving aerial is tilted, due to the combination of the effects of the main radiation and the unkeyed auxiliary radiation. It is also desirable that the auxiliary radiation and the parasitic radiation be in phase quadrature. The phase relation between the main and auxiliary radiations may be adjusted by varying the distance between the main and auxiliary antenna, by changing the length of the transmission line to, or a reactance in the feed to, the auxiliary antenna, or by other known arrangements. Specification 553,970 is referred to.
Patent GB-310590-A (GB)
Title: Improvements in or relating to boxes or cartons
IPC: B65D5/50
Filed: 1928-02-15
Abstract: 310,590. Cropper, D. L. Feb. 15, 1928. Fitting, internal.- In a rectangular box or carton for electric lamps provided with an internal lamp carrier made from a single strip of material, the carrier, Fig. 3, comprises two side walls 12, 15. the other two sides being open, two webs 13, 14 connecting the side walls and having apertures to receive the ends of the lamp and flaps or extensions 17, 18 on the open sides of the carrier to space it from the ends of the box or carton. The flaps 18 on the web 14 may be shorter than the flaps 17 and a wall 16 extends from the web to lie against the side wall 15.
Patent GB-562363-A (GB)
Title: Improvements relating to governors for internal combustion engines
IPC: F02D1/10
Filed: 1943-03-24
Abstract: 562,363. Speed governors. TANGYES, Ltd., and GAMBLE, J. March 24, 1943, No. 4803. [Class 57] - A centrifugal governor for an internal-combustion engine in which motion is transmitted from the crank-shaft to the cam-shaft by chain and sprockets, c'omprises a plate a adjustably secured to an engine part and a spindle passing through the plate and carrying the governor mechanism on one side and on the other side carrying a sprocket i driven by and tensioning the chain. The governor transmits motion through a spindle m carrying a lever n with a transverse extension o engaging the slidable governor member k in all positions of the adjustable plates, and a lever s stressed by a spring r and actuating the control rack of the fuel pump through a link t.
Patent GB-654970-A (GB)
Title: Improvements in or relating to copper-containing alloys
IPC: C22C9/01
Filed: 1948-02-18
Abstract: Aluminium bronze casting alloys contain 8.5-10.5 per cent Al together with Fe, Ni, Mn, Zn in the proportions set forth below, not more than 0.3 per cent of other elements and the remainder Cu.  The other elements consist of a quantity of Be together with the whole or any part of a class of non-essential elements whose use in the casting of aluminium bronze alloys is well known.  Such elements may be Pb not more than 0.05 per cent; Sn not more than 0.2 per cent; Si not more than 0.25 per cent; and Mg not more than 0.1 per cent.  The proportions of Fe, Ni, Mn and Zn are as follows: either Fe 1.5-3.5 per cent, Ni up to 1.0 per cent, Mn up to 1.0 per cent, Zn up to 0.5 per cent, or Fe 3.0-5.5 per cent, Ni 3.0-5.5 per cent, Mn up to 3.0 per cent, Zn up to 0.5 per cent.  The Be may be added in the form of a master alloy with any other constituent of the alloy.  All or most of the Cu and Fe may be melted together, cooled to about 1200 DEG C, the remaining constituents being added at this temperature, the Be as a 4-6 per cent master alloy with Al or as a 20-25 per cent master alloy with Cu.  The alloy is then poured at about 1200 DEG C into moulds.
Patent GB-161561-A (GB)
Title: Improvements in piston rings
IPC: F16J9/14
Filed: 1921-02-11
Abstract: 161,561. Ashley, C. S. April 10, 1920, [Convention date]. Piston packing. - One end 13 of a piston packing-ring overlaps the other end 11, and a lap 7 on the end 11 enters a recess in the end 13, while a tongue 8 on the end 11 enters a groove in the under surface of the end 13. The Specification as open to inspection under Sect. 91 (3) (a) describes also two or more grooves 2 in the outer periphery of the ring, which collect lubricant and equalize the expansion of the ring. The grooves are deepest adjacent the joint and increase in depth to the point opposite the joint. This subject-matter does not appear in the Specification as accepted.
Patent GB-734876-A (GB)
Title: Latch operating mechanism
IPC: E05C1/16
Filed: 1953-02-21
Abstract: 734,876. Latches. PARKES & SONS, Ltd., J., and BUTTER, F. J. Feb. 22, 1954 [Feb. 21, 1953], No. 4893/53. Class 44. Relates to a latch operating mechanism of the ''palace motion type," rotation of the follower 11 in one direction causing withdrawal of the bolt 15 against the action of a spring 31, by means of a follower horn 12 engaging an abutment 14 of the bolt tail 15, whilst rotation of the follower in the opposite direction causes the bolt 16 to be withdrawn, indirectly, by means of a follower horn 13 engaging an arm 19 of a crank lever 17, pivoted at 18, the other arm 20 of the crank lever engaging another abutment 21 on the bolt tail 15. According to the invention spring loading means operate directly on an additional follower horn 29 and also on the crank lever arm 19 to oppose rotation of the follower and cranked lever in the directions which cause the withdrawal of the bolt 16. As shown, the spring-loading means comprises a member 22 rockable on a fixed pivot 23 and having abutments 24, 25 engaging the horn 29 and the arm 19 respectively. The member 22 is urged to rotate anticlockwise by a spring 26. The abutments 14 and 21 on the bolt tail are duplicated at 14* and 21* to facilitate reversal of the bolt 16. In another two embodiments the spring-loading means is in the form of a sliding member urged by a helical compression spring and in one of these embodiments the horns 12, 13 of the follower are formed in one piece. In a further two embodiments, wherein the horns 12, 13 are formed in one piece, the follower horn 29 and the crank lever arm 19 are acted upon by separate spring-loading means, either in the form of two scroll springs anchored to a fixed stump, or by two spring plungers in a member rockable on a fixed pivot. According to the Provisional Specification the crank lever may have a pivoted operating connection with the bolt and be spring-loaded to shoot the bolt and the follower may then be operated upon by a spring-loaded member which directly opposes turning of the follower in both directions, is spring-urged toward the follower boss arid straddles the boss to co-operate with diametrically-opposed horns on the follower.
Patent GB-1520676-A (GB)
Title: Take-off performance indicator system for aircraft
IPC: G01C23/00
Filed: 1976-02-09
Abstract: 1520676 Take-off performance indicator NATIONAL RESEARCH DEVELOPMENT CORP 7 Feb 1977 [9 Feb 1976] 04984/76 Heading B7W In a take-off performance indicating system a bank of potentiometers defines a series of different speed versus distance curves, and one of the potentiometers is selected to represent the parameters of an individual take-off. The wipers of the potentiometers are electrically coupled to a distance measuring wheel to receive a distance-run signal from it, and an electrical signal representative of the speed associated, in the selected curve, with the distance defined by the distance-run signal is displayed on an indicator 41 as a movable index 44, 45, 46. A pointer 43 indicates measured airspeed during take-off.
Patent GB-308299-A (GB)
Title: Improvements in change-speed devices comprising cylindrical gearing with worm teeth for motor vehicles
IPC: F16H3/06
Filed: 1929-02-15
Abstract: 308,299. Soc. Anon. des Anciens Etablissements Panhard et Levassor. March 21, 1928, [Convention date]. Void [Published under Sect. 91 of the Acts]. Toothed wheels. - In cylindrical gear pairs O<1>, O<2> with helical teeth, the pitch of the teeth is steep, and the width is such that a fresh tooth begins to engage before the receding tooth is disengaged. The teeth are of less than normal height. Thus if Fig. 3 shows a normal tooth, Fig. 4 shows a tooth of the same circumferential pitch acording to the invention. A variablespeed gear using such gears comprises aligned driving and driven shafts, a parallel countershaft, and ball bearings with deep ball seats to take .end thrust.
Patent GB-139206-A (GB)
Title: Improvements in fluid containing inscribing instruments and brushes
IPC: B43K5/18
Filed: 1920-02-20
Abstract: 139,206. Garvey, C. A. Feb. 20, 1919, [Convention date]. Reservoir pens.-The discharge of liquid from a reservoir marking- pen or inking. brush is automatically controlled by a valve opening in proportion to the inclination of the instrument. The reservoir 1 is provided at its open lower end with a chambered discharge attachment 2 carrying a holder 3 for the marking-tip 4 or brush. The stem 9 of a valve 8 hangs through an orifice 7 in a transverse web 6 in the attachment 2, the head 10 of the valve resting on the web. An adjustable device 11, having apertures 12 to permit of the passage of the liquid, screws into the part 5 of the attachment 2, and controls the degree to which the valve may tilt when the instrument is inclined.
Patent GB-563520-A (GB)
Title: Improvements in or relating to electrical apparatus including networks suitable for use for dual signal transmission
IPC: H03D5/00
Filed: 1943-03-31
Abstract: 563,520. Wireless receiving circuits; selective networks. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 31, 1943, No. 5162. Convention date, Jan. 7, 1941. [Classes 40 (iii) and 40 (v)] A coupling circuit for the I.F. stage of a dualpurpose receiver comprises a pair of circuits L1, C1 and L2, C2 tuned to a high I.F. (say, 4.3 megacycles) for frequency-modulated waves and coupled by means of a common capacity C3 so as to give a band-pass effect, the capacity being tuned by an inductance L3 to a low I.F. (say, 455 kilocycles) for amplitude-modulated signals. At that frequency, the circuit acts as an anti-resonant circuit, the elements C1, L1, C2, L2 being without effect. An example of values for the components is given in the Specification.
Patent GB-509340-A (GB)
Title: Improvements in and relating to static electric condensers
IPC: H01G4/228
Filed: 1939-02-15
Abstract: 509,340. Condensers. STRAUS, W. Feb. 15, 1939, No. 5164/38. [Class 37] Connecting tags 2, shown as rivetted through the base of a moulded insulating tray 1, enclosing the condenser, are definitely located in certain positions by projections 3. Similar projections 3<SP>1</SP>, 3<SP>11</SP> provide for alternative positions. In a modification grooves are sunk in the base for a similar purpose.
Patent GB-884572-A (GB)
Title: 18,20-epoxy steroids
IPC: C07J71/00
Filed: 1959-05-21
Abstract: The invention comprises 18 : 20-epoxy-21-dimethylamino-4-pregnen-3-one and the N-oxide thereof, 18 : 20-epoxy - 4 : 20 - pregnadien - 3 - one and 18 : 20 - epoxy - 20 - hydroxy - 4 - pregnen-3-one.  They may be prepared by esterification of 3 : 5-cyclo-18 : 20-epoxy-21-hydroxypregnen-6-one (prepared by formation of 3 : 5-cyclo - 18 - trimethylammonium - 20 - pregnen - 6-one p-toluenesulphonate from the free 18-dimethylamino compound and methyl p-toluene-sulphonate, hydroxylation of the pregnene compound by osmylation and decomposition to form 3 : 5-cyclo-18-trimethylammonium-20 : 21-dihydroxypregnan-6-one p-toluenesulphonate and refluxing of this with potassium in t-butanol, a by-product of this process being 3 - 5-cyclo-18-dimethylamino-20 : 21-dihydroxy-6-pregnanone) with p-toluenesulphonyl chloride, treatment of the p-toluenesulphonate with dimethylamine in acetonitrile and then with alkali to yield 3 : 5-cyclo - 18 : 20 - epoxy - 21 - dimethylamino-pregnan-6-one, reduction of this with lithium aluminium hydride to the corresponding 6-ol, treatment of this with formic acid and then alkali to yield 18 : 20-epoxy-21-dimethylamino-5-pregnen-3-ol, Oppenauer oxidation of this to yield the required 18 : 20-epoxy-21-dimethyl-amino-4-pregnen-3-one and, if desired, treatment of this with a peroxy acid or hydrogen peroxide to yield the N-oxide, heating of this to form 18 : 20-epoxy-4 : 20-pregnadien-3-one and treatment of this with aqueous acid to yield 18 : 20-epoxy - 20 - hydroxy - 4 - pregnen - 3 - one.  These processes are described in examples, and a further example describes the oxidation of the last mentioned compound with chromium trioxide in pyridine to yield 18 : 20-epoxy-20-hydroxy-4-pregnene-3 : 18-dione, a lactone which on treatment with dilute sodium carbonate forms the sodium salt of 13b -carboxy-18-nor-4-pregnene-3 : 20-dione, which is in equilibrium with the lactone, and some 3 : 20-oxo-4-pregnen-18-al, a benzene solution of which on passage through a column of almost neutral alumina yields, on elution with a 2% solution of ether in benzene, 18 : 21 - cyclo - 4 : 18(21) pregnadien-3 : 20-dione.
Patent GB-1044931-A (GB)
Title: Improved propeller drive mechanism for boats
IPC: B63H20/22
Filed: 1965-02-08
Abstract: 1,044,931. Outboard drives. A.B. VOLVO PENTA. Feb. 8, 1965 [Feb. 14, 1964], No. 5282/65. Heading B7V. In a propeller drive mechanism for boats equipped with an inboard motor, the intermediate shaft 6 intersects the axis of the propeller shaft 16 in the plane of the pitch circle of the gear-wheel 18 on the propeller shaft. The torque which would tend to turn the propeller shaft housing 7 in a lateral direction so that the boat steers a curved course is then eliminated. As in practice, it is not necessary to eliminate the torque completely, an angle of inclination between the propeller shaft and the intermediate shaft of from 110 to 130 degrees is acceptable.
Patent GB-924404-A (GB)
Title: Automatic electric control system for a precision pressure generator
Inventor: BRESENOFF STANLEY WOLFE
IPC: G05D16/20
Filed: 1961-02-13
Abstract: 924,404. Fluid actuation of switches. NORTH AMERICAN AVIATION Inc. Feb. 13, 1961, No. 6294/61. Class 38 (5). [Also in Group XXXV] In a fluid-pressure operated switch for use in an automatic electric control system (see Group XXXV) a bellows capsule 142 is responsive to the difference between an internal pressure applied through a pipe 149 and an external pressure applied to a chamber 144 through a pipe 147 to position a wedge-shaped actuator 175. At a predetermined pressure difference the actuator is positioned so that the contacts of switches 151, 152, actuated by push-rods 177, 179 are open. Expansion of the bellows causes the actuator to move upwards and switch 151 to close, downward movement of the actuator closes switch 152.
Patent GB-1177754-A (GB)
Title: Improvements in or relating to Machines for Printing on Cylindrical Surfaces
IPC: B41F17/22
Filed: 1966-02-07
Abstract: 1,177,754. Printing on cylindrical surfaces. REJAFIX Ltd., and D. O. TOMLIN. 7 Feb. 1967 [7 Feb., 1966], No. 5323/66. Heading B6C. A machine which prints on the cylindrical surface of an article having an eccentrically disposed portion relative to the cylindrical surface comprises means for conveying the article transversely to a printing station and for engaging the eccentric portion to cause the article to rotate into a selected position for printing. Fig. 1 illustrates a machine for printing graduation marks on syringes, each syringe having a cylindrical barrel 10, an eccentrically disposed nozzle 11 and a generally oval finger flange 12, at its opposite end, provided with flat edges 13. The syringes are supported in a shoot 15 by their flanges 12 directly above a rotary member 16 comprising axially-spaced discs 16a each provided with at least one notch 18, whose trailing edge 20 engages a barrel 10 as a syringe drops from the shoot. A guide channel 27 in an end plate 21 supports the nozzles 11 of the syringes as they are carried on member 16, while plates 25 keep the syringes in the notches 18. As each syringe falls from the shoot 15, it is rotated to a desired position by springs 30, 46 engaging its nozzle 11, and then guides 49, 50 engage the flat edges 13 of the flange 12 to maintain the syringe in the correct altitude. The syringe is stripped from notch 18 by a stripper blade 27c and rolls in engagement with the peripheries of discs 16a and a second rotary member 26, jumping out being prevented by rider rollers 35, (36), (Fig. 3, not shown). When the leading edge 40a of a cam 40 engages a flat edge 13 the syringe stops rotating and does not recommence until the trailing edge is disengaged. The barrel then rotates for a further period, governed by the spacing between cam 40 and printing pad 41, is printed while rolling, drops into a notch 43 in member 26 and is released to a conveyer via curved guide 44. In further embodiments eccentrically placed finger flanges are used to rotate the article to the printing position.
Patent GB-1175417-A (GB)
Title: Curing Systems for Fluorocarbon Elastomers
Inventor: THOMAS DAVID KENNETH
IPC: C08F8/32
Filed: 1967-02-03
Abstract: 1,175,417. Curing fluorine-containing elastomers. NATIONAL RESEARCH DEVELOPMENT CORP. 12 Jan., 1968 [3 Feb., 1967], No. 5351/67. Heading C3P. Cured fluorocarbon elastomers are prepared by compounding a fluorocarbon elastomer with a compatible plasticizer which is a fluorinated polyalkylene having sulphur pentafluoride side drains or end groups or both, or a glycol and a curing agent which is an aliphatic tetramine of the formula in which R represents a divalent aliphatic group which may be the same or different throughout the formula, and curing the resulting compounded elastomer. The term " fluorocarbon elastomer " means polymers of fluorinesubstituted ethylenically unsaturated hydrocarbons having elastomeric properties, e.g. copolymers of vinylidene fluoride and one or more halogenated olefins, e.g. hexafluoropropylene, pentafluoropropylene, tetrafluoroethylene, and chlorotrifluoroethylene. Suitable plasticizers are a sulphurpentafluorochloride tetrafluoroethylene tolomer, e.g. 1-sulphurpentafluoro - 6 - chloro - perfluoro - n - hexane and neopentyl glycol. The preferred curing agent is triethylene tetramine.
Patent GB-235115-A (GB)
Title: An improved golf tee
IPC: A63B57/00
Filed: 1925-02-27
Abstract: 235,115. Pryde, R. D. Feb. 27, 1925. Tees.-A golf tee 10 comprising a single piece of material of conical formation, the pointed end being pressed into the ground and the larger end acting as a seat for the ball, is formed in its upper end with a cavity 11, the walls of which do not contact. with the ball. The. portion 12 of the tee between the cavity and the outside edge may be bevelled to form a seat for the ball.
Patent GB-576212-A (GB)
Title: Improvements in labelling machines
IPC: B65C9/22
Filed: 1940-03-28
Abstract: 576,212. Labelling - machines. DETREZ, R. March 28, 1940, No. 5573. [Class 73] In a labelling-machine in which a forked picker is reciprocated vertically in its own plane past an adhesive-applying roller to a position in which a label pile is moved into contact therewith to remove the top label, a supplementary plate .is provided for applying adhesive to the labels between the members of the picker. The picker 2 is gummed by a roller 5 and carries a further roller 6 which is gummed by the roller 5 and then applies the gum to the supplementary plate 9, which is reciprocated horizontally to apply gum to the central part of the outermost label of the pile 10 while the picker 2 gums its outer parts. The roller 6 is brought into contact with the roller 5 by a stop 8, and the plate 9 is actuated by a cam 14.
Patent GB-982240-A (GB)
Title: Mobile bank
Inventor: LEAVESLEY LEONARD ARTHUR
IPC: B60P3/03
Filed: 1963-02-12
Abstract: 982,240. Convertible vehicles. LEAVEDEY ENGINEERING Ltd. Jan. 24, 1964 [Feb. 12, 1963], No. 5622/63. Heading B7B.  A mobile bank has a cashiers' compartment behind the driver's compartment and houses a counter 18, safe 19 and a cash drawer 20, the space above the counter 18 being closed by an apertured reinforced panel 21 with a sliding shutter 24 to close the aperture. The rear door is held in the raised position by struts 17.
Patent GB-295570-A (GB)
Title: Improvement in transformer house having a pole built on the same
IPC: H02B5/00
Filed: 1928-02-22
Abstract: 295,570. Jacobson, O., and Rangford, K. J. R. J. Aug. 13, 1927, [Convention date]. Electric cables, leading into buildings. - The low-tension conductors 17 of a transformer are carried from a transformer house 1 through vertical ventilating tubes 6 secured to the roof 5 of the house 1 by collar flanges 7.
Patent GB-1316727-A (GB)
Title: Filter
IPC: G02B5/28
Filed: 1972-02-28
Abstract: 1316727 Interference filter LKB PRODUKTER AB 28 Feb 1972 [2 March 1971] 5658/72 Heading G2J The filter comprises two partially reflecting surfaces parallel to each other and spaced apart by a multiple, other than 1, of half the wavelength to be transmitted and an energy absorbing layer between the two and at a distance from the surfaces which is a multiple of half the wavelength. Chromium, gold or platinum is disclosed as the absorbant layer.
Patent GB-1200817-A (GB)
Title: Starch liquefaction process
IPC: C12P19/14
Filed: 1968-02-05
Abstract: 1,200,817. Dextrose. UNION STARCH & REFINING CO. 5 Feb., 1968 [13 March, 1967], No. 5722/68. Heading C2C. [Also in Division C3] A liquefied starch having a D.E. of 9-30 and which has been prepared by steam heating an aqueous starch slurry in the presence of Ca<SP>+</SP>  and Na<SP>+</SP>, optionally in the presence of amylase, followed by two further amylase treatments (see Division C3) is further degraded to dextrose syrup using amyloglucosidase at pH 4À5 and 60‹ C.