baber/WOPTO huggingface dataset:
Patent GB-715353-A (GB)
Title: Improvements in or relating to apparatus for amplitude modulating electric signals
IPC: H03C1/52
Filed: 1952-02-14
Abstract: 715,353. Valve modulation circuits. GENERAL ELECTRIC CO., Ltd., and KIRKNESS, R. H. Feb. 16, 1953 [Feb. 14, 1952], No. 4012/52. Class 40 (5) A carrier voltage is applied to the control grid of a valve 10, and a modulating signal to the grid of a valve 6 connected in series with the valve 10 across the H.T. supply 4, 5, a resistor 8 being interposed between the valves; and an output load resistor 1 develops at the anode of the valve 6 an amplitude-modulated carrier. In order that the modulation may be linear, a rectifier 23 with its anode earthed is connected to the anode of the valve 10. The valve 10 is so biased that current passes only during the positive half-cycles of its carrier input. Whilst the valve 10 is blocked its anode voltage is positive and the rectifier 23 is non-conducting; but when the valve 10 is passing current, its anode voltage falls, and the rectifier 23 gives a low-resistance path to earth. The H.T. supply is so arranged that the positive lead 4 is, e.g. at +200 volts, and the negative lead 5 at, e.g. -100 volts, relative to earth. As shown, a pair of such modulating circuits is used, with a common output load resistor 1. The carrier voltage is applied in pushpull to the grids of the carrier valves 10, 11, and is balanced out in the output circuit. The modulating voltage may be applied to the grids of either or both of the modulating valves 6, 7. When applied to both valves, the modulating voltage may be in parallel or in push-pull; m the latter case this voltage is balanced out in the output circuit. Pulse signals of positive polarity may be supplied to both the valves 10, 11 in place of an oscillatory carrier, and amplitudemodulated pulses taken from the output load 1.
Patent GB-382162-A (GB)
Title: Improvements in braiding machines
IPC: D04C3/00
Filed: 1932-02-10
Abstract: 382,162. Braiding machines. DICK, F., 2, Via Massimo d'Azeglio, Monza, Italy. Feb. 10, 1932, No. 4013. [Class 74 (i).] Each of the toothed wheels Z serving as the gearing for the bobbin carriers is provided with helicoidal teeth, and has a hub C supported in bearings in the grooved plate A and in a flange A<1> formed integrally therewith. Alternatively, the flange A<1> may be replaced by spaced distance-pieces which are bored to provide the bearings for the hubs C. The cut-away portions for receiving the bobbin spindles may extend part way only axially of the wheels, so as to leave an uninterrupted toothed portion so that the wheels are in gear continuously. Thread guides 7 may be secured within the hubs C by axially perforated screws N. The screws N prevent leakage of the lubricating oil.
Patent GB-187536-A (GB)
Title: Improvements in or relating to control gear for electric driving mechanism
IPC: B60L15/20
Filed: 1922-02-11
Abstract: 187,536. Edwards, C. K., and Associated Equipment Co., Ltd. Feb. 11, 1922. Controllers, actuating mechanism for.-The motor controller in a trolly-omnibus or other electrically propelled vehicle is operated for forward and reverse running by a pivoted spring- controlled foot-lever 13 carrying two pedals 14, 15, one on each side of the pivot. A stop-lever 25, which can be freed by moving a handle 31 beneath the driver's seat, normally prevents depression of the pedal 15 on the reversing side. Any number of definite steps may be given by a notched sector 17 working over a spring-pressed ball.
Patent GB-266005-A (GB)
Title: Improved electric traction system for ploughing and other purposes
IPC: H02G11/00
Filed: 1927-02-14
Abstract: 266,005. Mazzo, M., Mazzo, S., and Bolledi, L. Feb. 15, 1926, [Convention date]. Connecting cables to moving vehicles; taking up slack.-An electric traction system for direct traction ploughing and other agricultural purposes comprises a tractor provided with an electric motor connected through revolving contacts and moving cables to a source of electrical energy, the cables being suspended from a balloon. The energy conveyed by the high-tension line L is transformed or converted at a portable sub-station H and then passes directly to the cables C connected to the motor on the tractor, or indirectly to the cables 0 through cables I, or a portable overhead line, and a revolving brush contact F on a transportable pillar G. The cables C are connected to a column on the tractor by a similar revolving contact. A balloon D is applied midway along the length of the moving cables C to support them. It is also connected to a safety steel cable B and is fitted with a valve which opens if the cables are broken. The Specification as open to inspection under Sect. 91 (3) (a) states that the system is applicable to operations other than agricultural. This subject-matter does not appear in the Specification as accepted.
Patent GB-779000-A (GB)
Title: Improvements in or relating to servo-systems
IPC: G08C19/48
Filed: 1952-01-24
Abstract: 779,000. Electrical servo systems. BRIGGS, G. April 23, 1953 [Jan. 24, 1952], No. 4384/57. Divided out of 775,171. Class 40 (1). A device for an electrical servo system comprises a container 20 containing a conductive liquid, a set of four stator electrodes 22, 24, symmetrically arranged about an axis and subtending equal angles thereat and a rotor 21 carrying two electrodes 23 symmetrically arranged about the axis and subtending equal angles thereat. In the device shown which is a sine cosine resolver the electrodes are arcuate and are disposed in alcohol made conductive with acid or alkali. The device may form the transmitter of a remote position indicator with a receiver of the well known type shown in Fig. 2. The receiver rotor coil A<SP>1</SP> and the transmitter rotor A may both be supplied with A.C. so that the receiver rotor follows up movements of the transmitter rotor. Alternatively either the transmitter or receiver rotor only may be supplied with A.C. and an error signal derived from the other rotor. Specification 647,206 is referred to.
Patent GB-365356-A (GB)
Title: Watertight watch case
IPC: G04B37/08
Filed: 1931-02-12
Abstract: 365,356. Watch cases. ALIX, L., 1, Rue du Commerce, Geneva, Switzerland. Feb. 12, 1931, No. 4388. Convention date, March 10, 1930. [Class 139.] A waterproof wrist watch comprises an outer casing f, hermetically sealed except at one end into which slides an inner casing a enclosing the movement. In the closed position a bevel s on the outer case meets rubber packing q housed on a ring member o on the impervious end wall n of the casing a. The two casings are locked by a hook t, integral with casing f and engaging a shoulder on the inner casing. This hook may be released by a transversely sliding pin a which has a nose v normally housed in a recess w of hook t. A transparent disc m, preferably of sapphire, is sealed into an aperture of the outer casing. The ends of the bracelet are attached to bars h, j extending between lugs g, k on the outer and inner casings respectively. These casings are arcuate in section and rectangular in plan.
Patent GB-100208-A (GB)
Title: Improvements in Watch Movements.
Inventor: MORRISON ISIDORE SWIENTOSLAWSK
IPC: G04B33/02
Filed: 1916-03-24
Abstract: 100,208. Morrison, I. S. March 24, 1915, [Convention date]. Seconds mechanism. - The seconds-hand is driven in the ordinary direction by a special train. As shown in Fig. 1, the barrel B meshes with the pinion D of a wheel F, which drives the secondshand staff G with its pinion H through an idle wheel J. As shown in Fig. 2, the idle wheel J is put between the barrel and the pinion D.
Patent GB-211879-A (GB)
Title: Improvements in or relating to incandescent electric lamps and other similar apparatus, and to glass refining apparatus in connection therewith
IPC: C03B5/225
Filed: 1923-05-11
Abstract: 211,879. Vello, L. S. May 12, 1922, [Convention date]. Crucibles.-In the process of sealing electric lamp bulbs &c. by applying a ring of fusible glass, as described in Specification 197,693, [Class 39 (ii), Electric lamps, Incandescent], the glass used is fused in a vacuum to remove occluded gases. Apparatus for this purpose comprises a crucible 4<a>, Fig. 2, exhausted directly through a tubular extension 23 of its cover. Sealing-rings 20 of fusible glass are arranged between the crucible and the cover, and the space between these rings may be exhausted.
Patent GB-735249-A (GB)
Title: Improvements relating to toy building sets
IPC: A63H33/10
Filed: 1953-02-18
Abstract: 735,249. Building toys. JORGENSEN, E Feb. 18, 1953, No. 4549/53. Class 132(3). A toy building set comprises a keying member 1, (Fig. 1) of which one leg and a portion of a crossbar 4 are engageable in a hole 2 and one of a plurality of recesses 3 formed in a toy building slab, Fig. 5. Four slabs may be joined edge to edge by one key and a wall may thus be built up. A modified slab, Fig. 7 (not shown), is suitable for constructing gables and roof elements, Fig. 12, also provided with holes and recesses, may be keyed to walls and to each other, further elements, Figs. 9 and 11, forming the roof ridge.
Patent GB-194280-A (GB)
Title: Process for the direct reduction of ores, and particularly of iron ores
IPC: C21B13/00
Filed: 1923-02-16
Abstract: 194,280. Basset, L. P. March 1, 1922, [Convention date]. Dry processes of extracting metals.-In a process for reducing ores, the ores are mixed with the quantity of coal necessary for their reduction and with suitable fluxes and the mixture is subjected to the action of a flame obtained by the combustion of pulverized coal in the necessary quantity of superheated air which produces carbon monoxide and a quantity of carbon dioxide, the latter varying between 6 and 12 per cent, so that the flame can never exert a prejudicial oxidizing action on the metal. Specifications 132,262, [Class 72, Iron &c.], 140,096, and 158,523, [Class 72, Iron &c.], are referred to.
Patent GB-538920-A (GB)
Title: Improvements relating to explosives
IPC: C06B31/40
Filed: 1940-03-12
Abstract: 538,920. Explosives. SMITH, A. March 12, 1940, No. 4631. [Class 9 (ii)] To increase the explosive action, amatol is impregnated with a highly-inflammable liquid such as petrol or benzol. The latter may be added after the charge has been filled into the shell &c. but preferably the dry powdered or granular amatol is treated to absorb the optimum amount of the liquid before filling.
Patent GB-583092-A (GB)
Title: A folding bayonet and bayonet attachment for firearms
IPC: F41C27/18
Filed: 1944-03-13
Abstract: 583,092. Folding bayonets for smallarms. PATCHETT, G. W., and STERLING ENGINEERING CO., Ltd. March 13, 1944, No. 4639. [Class 119] A folding bayonet 8 for smallarms is freely hinged by a bolt 9 in lugs 6 of a clip 5 attached to the gun muzzle. In its folded position, the shoulder 10 of the bayonet engages a spring- loaded pusher 14 attached to the barrel casing 4. The bayonet is retained in its folded position by a spring-loaded catch 20 operated by a thumb lever 24, and on releasing this catch, is swung about the pivot 9 by the impulse of the pusher 14, into its operative position where it is retained by a spring catch consisting of a spring-loaded plunger 11 housed in the shoulder of the bayonet and engaging a slot 3a formed in a collar 2 surrounding the gun barrel at the muzzle. The bayonet may be released by withdrawing the plunger 11 by means of the knob 12. Construction of pusher 14, mechanism and spring catch 24 are described in detail. Finger guard provided between point of bayonet when folded and thumb release lever.
Patent GB-285390-A (GB)
Title: Improvements in devices for diluting the exhaust from internal combustion engines
IPC: F01N1/14
Filed: 1928-02-14
Abstract: 285,390. Thiele, M. Feb. 14, 1927, [Convention date]. Exhaust, diluting and silencing; pumps. - The engine exhaust escapes through the perforated end of a pipe 1 into a silencer 3 whence it passes to a chamber 8 where it is mixed with air forced through a number of tubes 4 by the motion of the vehicle. The passage of the exhaust into the chamber 8 takes place through a number of apertures 10, Fig. 4, surrounding each of the tubes 4 in a tube plate 6. The inlet ends of the tubes 9 are protected by a strainer 9. The mixture of exhaust gases and air is drawn through the pipes 16, 18 and discharged through the pipe 26 by an engine driven fan 19, Fig. 5. The gases enter at the centre of the fan and, on being discharged are mixed with additional air supplied by auxiliary fans 20, 21 which draw through strainers 23, 24. A flap valve 11, Fig. 1, actuated through Bowden wire 14 and arm 13, permits of the fan being cut out and the mixed gases being discharged direct to atmosphere.
Patent GB-723991-A (GB)
Title: Manufacture of polymers and copolymers of vinyl chloride
IPC: C08F14/06
Filed: 1952-02-22
Abstract: Suspension polymerization of vinyl chloride or a mixture of vinyl chloride with a copolymerizable monomer is effected continuously in the presence of a non-solvent dispersing medium for the polymer and under pressure, the polymerization and the discharge of polymerization product being carried out in separate vessels which can be connected together.  The discharge can be carried out in a continuous or discontinuous manner and at least two discharging vessels may be used which are filled alternately from the polymerization vessel and discharged when disconnected therefrom. The copolymerizable monomer may be vinyl formate, acetate, propionate, butyrate, benzoate or stearate, methyl, ethyl or propyl acrylate or methacrylate, maleic, fumaric or crotonic acid or an ester thereof, vinyl bromide or fluoride, vinylidene chloride or acrylonitrile.  The dispersing medium may be water, an organic liquid such as a paraffin hydrocarbon, e.g. petroleum ether, methanol or ethanol or mixtures thereof, a mixture of water and methanol, ethanol, propanol, isopropanol, butanol, acetone, dioxane, tetrahydrofurane, formic acid or acetic acid, or monomeric vinyl chloride.  Polymerization in an aqueous phase is preferably effected in the presence of a protective colloid such as polyvinyl alcohol, an alginate or a water-soluble salt of a maleic acid copolymer in the presence as catalyst of hydrogen peroxide, a persulphate or a perchlorate, or a redox system in which the reducing agent is sodium formaldehyde sulphoxylate, a hydrosulphite or bisulphite, a sulphinic acid or a salt thereof, didihydroxy-acetone, or sugar; one component of the redox system may be added to the aqueous liquid and the other to the monomer before introduction into the reaction vessel.  When polymerizing in an organic liquid or monomeric vinyl chloride the catalyst may be benzoyl, para-chloro-benzoyl, toluyl, acetyl, acetylbenzoyl, or tetrahydronaphthalene peroxide, or azo-isobutyric acid dinitrile, which may be used in combination with a reducing agent such as a mercaptan or sulphinic acid or a hydroxycarbonyl compound such as benzoin used in the presence of a dissolved iron salt.  The polymer may be obtained in the form of granules. Further polymerization may take place in the discharging vessel. Specification 694,253 is referred to.
Patent GB-1139851-A (GB)
Title: Improvements relating to superconducting windings
IPC: H02K3/48
Filed: 1966-02-03
Abstract: 1,139,851. Superconductors. SIEMENSSCHUCKERTWERKE A.G. 3 Feb., 1966 [6 Feb., 1965; 10 Dec., 1965], No. 4890/66. Heading H1K. A superconducting winding having wires 112 embedded in a longitudinally divided elongate supporting body 113 and surrounded by heat insulation material not shown is retained in position within a housing 114 by ties 107 ... 111 or struts (142), Fig. 3, extending between individual portions of the body, between different bodies, or between the body and the housing wall. The wire is wound in a U-shaped former 127 having cooling liquid passages 128, and held fast by a grease in the body 113 which is surrounded by a cooling coil not shown. The heat insulation may be reflecting crinkled foil and at 121 also surrounds the ties.
Patent GB-1506171-A (GB)
Title: Equipment for the transformation of data
IPC: G06F17/14
Filed: 1975-02-05
Abstract: 1506171 Transforming data FRANCE ARMED FORCES MINISTER OF 5 Feb 1975 [25 Feb 1974] 4929/75 Heading G4A A 4 Î 4 matrix of binary coded numbers A held in a store 35, Fig. 7, is transformed by the apparatus of the invention into a 4 x 4 matrix of binary coded numbers C held in a store 40, each column of the matrix A being read serially into a respective shift register, e.g. 101, of output circuits 45, 50, 55, 60, each output circuit, e.g. 45, including three identical transformation circuits, e.g. 102-104, interconnected as shown, each of the transformation circuits, e.g. 102- 104, producing at its outputs 3, 4 the following functions of its inputs 1, 2: output 3 is the smaller of the inputs 1, 2, and output 4 is the difference between inputs 1 and 2. The outputs e.g. 105-108, of output circuits 45, 50, 55, 60 are joined to inputs, e.g. 115-118, of input circuits 65, 70, 75, 80 by conductors connected so as to interchange the columns and rows of the matrix A being transformed. Each input circuit 65, 70, 75, 80 includes transformation circuits, e.g. 112-114, and a shift register, e.g. 111, respectively identical to those of the output circuits 45, 50, 55, 60. The outputs of the shift registers, e.g. 111, which constitute the rows of the transformed matrix C, are fed to respective rows of the store 40. The logic of each transformation circuit, e.g. 102, is given in Fig. 5, and includes an integrated circuit full binary algebraic adder 5. In Figs. 6, 8 (not shown), circuits are given analogous to the respective Figs. 5, 7 for operating on the transformed matrix C to obtain the original matrix A. The invention may be applied to transform data used in the transmission of television images to reduce the necessary pass-band. It is stated that the "spread" of the numbers of the transformed matrix C is smaller than that produced using prior-art transformations, e.g. the Haar transformation (described). The matrices A, C may alternatively contain analogue data.
Patent GB-420345-A (GB)
Title: Improvements in or relating to apparatus for distributing powder
IPC: A01M9/00
Filed: 1934-02-15
Abstract: 420,345. Powder blowers. HILL, S. D., 66, Fitzwilliam Street, Sheffield. Feb. 15, 1934, No. 4981. [Class 18] In apparatus for distributing powder, of the type adapted to be carried by the user and comprising a powder chamber combined with a fan which projects powder from the chamber through a suitable orifice, the powder chamber 10 is furnished with means, e.g. shoulder and waist straps 30, 31, 36 furnished with adjustable buckles, for securing it to the back of the user, a back plate 11 being preferably provided, and has a forwardly projecting arm 12 carrying a spindle 14 fitted with a driving handle 13 and means, e.g. an enclosed sprocket chain, for transmitting a drive from the handle 13 to the fan 19, the latter being mounted in or on the powder chamber, to discharge the powder through a tangential feed chamber 27 and thence through the conduit 28, 29 held by the left hand. The flow of powder may be adjusted by an external hand wheel 25 operating on a shutter covering a port between the reservoir 20 and the fan chamber 21.
Patent GB-487801-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L5/30
Filed: 1937-02-19
Abstract: 487,801. Vacuum cleaners. AIRWAY ELECTRIC APPLIANCE CORPORATION. Feb. 19, 1937, No. 4981. Convention date, March 3, 1936. [Class 8 (i)] In a vacuum cleaner in which the fan and motor casings are relatively rotatable, a headlight 78 is held in the space between the motor casing 24 and the suction and agitator chamber 10, being secured to the top of the latter. The light rays are directed by a visor 88, made of rubber and forming part of a rubber buffer 89 secured to the top of the casing 81. This rubber buffer has ornamental inserts.
Patent GB-548668-A (GB)
Title: Improvements in or relating to autoclaves
IPC: B01J3/04
Filed: 1941-04-17
Abstract: 548,668. Digesters. SULZER FRERES SOC. ANON. April 17, 1941. No. 4988. Convention date, April 19, 1940. [Class 64 (i)] A stirrer 2 in an autoclave for effecting chemical reactions under pressure is driven by an electric motor having a partition 8 of non-magnetic material separating in a gas-tight manner the space containing the squirrel-cage rotor 4 from the space containing the surrounding stator 5. The motor space, which is open to the autoclave, and the stator space are connected by a pressureequalizing pipe 10 containing a liquid seal.
Patent GB-845560-A (GB)
Title: Improvements in or relating to polyamide resins
Inventor: PEERMAN DWIGHT ELLSWORTH
IPC: C08G69/34
Filed: 1959-02-13
Abstract: A polyamide resin comprises the reaction product of (a) a polymeric fatty acid, (b) a dibasic acid containing from 5 to 10 carbon atoms, (c) an alkylene diamine containing from 2 to 6 carbon atoms and (d) a polyalkylene polyamine containing from 3 to 5 amino groups and in which the alkylene groups contain from 2 to 3 carbon atoms. Specified polymeric fatty acids are those derived from the polymerization of drying or semi-drying oils or from the polymerization of the free acids or simple aliphatic alcohol esters of the acids of soyabean, linseed, tung, perilla, corn, oiticica, cottonseed, tall, sunflower, safflower or dehydrated castor oils. Specified dibasic acids are glutaric, adipic, pimelic, suberic, azelaic, sebacic, terephthalic and isophthalic acids.  Alkylene diamines specified are ethylene and hexamethylene diamine, 1 : 3-diamino propane, 1 : 3-diamino butane, 1 : 4-diamino butane and 3-(isopropylamino-)-propylamine. Polyalkylene polyamines specified are diethylene triamine, trimethylene tetramine, tetraethylene pentamine and 3 : 31-imino-bis-propylamine.  The examples describe the preparation of resins from ethylene diamine, unsaturated fatty acid monomer, polymerized fatty acid, sebacic acid and diethylene triamine, the products being soluble in a phenol-butanol mixture.
Patent GB-685853-A (GB)
Title: Improvements in or relating to electric phase-splitting networks
IPC: H03H7/18
Filed: 1950-02-28
Abstract: 685,853. Phase converting. GENERAL ELECTRIC CO., Ltd., and BRYDEN, J. E. Feb. 28, 1951 [Feb. 28, 1950], No. 5123/50. Class 38 (ii). Two currents in quadrature are derived from a singe-phase supply in a network comprising two parallel paths, one having capacity and resistance in series, of values C, R respectively, and the other having inductance and resistance in series of values L, U respectively, the values being so chosen that In such a circuit the output currents remain in quadrature for any frequency, but if frequency is chosen, the output currents are of equal value as well. In such a phase splitting circuit which may be used in the signalling system described in Specification 685,852, [Group XXXVIII], one branch 2 supplied by single phase input 4 comprises condenser 5 and the resistive load 14 of transformer 7, and the other branch 3 comprises inductance 8 and the resistive load 15 of transformer 9. The two phase outputs operate polarized relays 17, 18 which form part of the loads, in a system where the phases of the reference input 4 and a control supply 16 are compared.