baber/WOPTO huggingface dataset:
Patent GB-1016516-A (GB)
Title: Ether-ketones and methods for their preparation
IPC: C11B9/00
Filed: 1963-07-24
Abstract: Perfumes suitable for soap and detergent formulations comprise alkoxy-pentanones and -hexanones of the general formula RO-)CR1R2)n-(CR3R4)m -(CR5R6)p-CO-R7 wherein R1-6 are hydrogen or an alkyl group having 1 to 3 carbon atoms with not more than two of the radicals being alkyl, R7 is an alkyl group having 1 to 3 carbon atoms, m, n and p are integers whose sum is 3 or 4 and the total number of carbon atoms in the molecule is no more than 20.ALSO:The invention comprises alkoxy-pentanones and hexanones of the general formula RO-(CR1R2)n-(CR3R4)m -(CR5R6)p-COR7 wherein R is an alkyl group having at least 4 carbon atoms, R1, R2, R3, R4, R5, R6 each are hydrogen or an alkyl group having 1 to 3 carbon atoms, not more than two of the radicals being alkyl, R7 is an alkyl group having 1 to 3 carbon atoms and m, n and p are integers whose sum is 3 or 4, the total number of carbon atoms in the molecule being no more than 20. They may be prepared by reacting the aldehyde R7CHO with an allyl ether in the presence of di-tertiarybutyl peroxide. A method for preparing 5-alkoxy-2-pentanones comprises reacting a 5-halo-2-pentanone with an alcohol having at least 4 carbon atoms and hydrolysing the product to the etherketone. Ether-ketones may also be prepared from chloro-ethers using a Grignard reagent and a nitrile. The examples describe the preparation of 5-(2,4-dimethylpentoxy)-2-pentanone, 5 - isobutoxy - 4 - methyl - 2 - pentanone, 2 - methyl - 6 - isobutoxy - hexanone - 3, 5 - isobutoxy - 2 - pentanone, 5 - (n - pentoxy) - pentanone - 2, and 6 - isobutoxy - hexanone - 2. These compounds may be used as perfumes, and in detergent compositions containing alkali and/or a bleaching agent.ALSO:A perfume base contains an alkoxy-pentanone or hexanone of the formula <FORM:1016516/A5-A6/1> wherein R is an alkyl group having at least 4 carbon atoms; R1, R2, R3, R4, R5, R6 are each hydrogen or an alkyl group having from 1 to 3 carbon atoms with not more than two of the radicals being alkyl; R7 is an alkyl group having 1 to 3 carbon atoms; m, n, p are integers whose sum is 3 or 4; the total number of carbon atoms is no more than 20 (see Division C2).  In an example Rose Lavender perfume consists of 5-isobutoxy pentanone-2, coumarin, eugenol, Lavandin oil, diphenyl ether, palchouli oil and musk ambrett.
Patent GB-264437-A (GB)
Title: Improvements relating to globe fittings for electric lamps
IPC: F21V17/12
Filed: 1926-11-20
Abstract: 264,437. Chalmers, A. Nov. 20, 1926. Securing globes to holders.-In an electric lamp fitting in which a globe 4 is secured to a gallery 1 by means of a guard 3 and the upper screwthreaded ends 7 of integral side members of the guard pass freely through perforated lugs 8 on the gallery, the lugs 8 are formed as hemispherical sockets and the guardsupporting nuts 9 have spherical faces to enter into ball- and socket relationship with the sockets so that the globe may be withdrawn from the gallery merely by swinging aside the guard and not actually removing it. The side members are provided with keepers 10 adapted to enter pockets 11 in the nuts when the guard is fully extended, and the walls 12 of the lugs 8 necessitate the use of a tubular spanner for unlocking. According to the first Provisional Specification, each lug on the gallery is provided with an elongated slot for receiving a side member of the guard, and with a conical recess for engagement with a correspondingly coned surface on the guard-supporting nut when the nut is tightened down.
Patent GB-288917-A (GB)
Title: Improvements in and relating to puncture-proof compounds and process of making the same
IPC: C09K3/10
Filed: 1927-11-03
Abstract: 288,917. Harrington, B. G., and Mason, R. S. Nov. 3, 1927. Compositions containing mica.-A puncturefilling composition contains finely-pawdered silica and alumina in major proportion and mica and soapstane in minor proportion, the whole being mixed to a uniform consistency with water. evaporated to dryness, crushed and sifted, and applied in powder form. Suitable proportions for the four constituents mentioned are, respectively, 40, 40, 10, 10. A small proportion of coarse mica and small quantities of ochre or gilt dust may be added to the sifted product.
Patent GB-719913-A (GB)
Title: Improvements in or relating to organo-lead compounds
Inventor: KOLKA ALFRED JEROME
IPC: C07F7/24
Filed: 1952-11-21
Abstract: Tetrahydrocarbon lead compounds are prepared by dissolving lead and an alkali or alkaline earth metal in liquid ammonia and reacting the resulting solution with an alkylating and/or arylating agent having a hydrocarbon group attached to a negative radical which reacts with the alkali or alkaline earth metal to form a salt.  The lead may be in the form of free metallic lead or a lead alloy such as sodium-lead, potassium-lead and calcium-lead alloys.  Suitable alkylating and arylating agents are the alkyl and aryl halides, preferably the iodides, bromides and chlorides, the dialkyl sulphates and the trialkyl phosphates containing ethyl, propyl, butyl or phenyl radicals.  Tetrahydrocarbon lead compounds which may be prepared are tetramethyl, tetraethyl, tetrapropyl, dimethyldiethyl, methyltriethyl, tetraphenyl and diethyldiphenyl lead.  The preferred reaction temperature is between -35 DEG  and 60 DEG  C., and the preferred reaction time is between 1 and 60 minutes.  The amount of liquid ammonia used may be between 1 and 1000 parts-preferably between 2 and 25 parts-to 1 part of metal used by weight.  In the examples tetraethyl lead is prepared using NaPb alloy.
Patent GB-655758-A (GB)
Title: Method of and apparatus for preparing dough for baking
IPC: A21C9/08
Filed: 1948-11-12
Abstract: 655,758. Sheeting and coiling dough. RHODES, H. C. Nov. 12, 1948, No. 29469. [Class 87 (ii)] A mass of dough is rolled into an elongated sheet which is shortened by bringing it progressively into contact with a surface moving at a lower speed. A drum 19, Fig. 2, driven through a variable-speed drive, Fig. 6 (not shown), and moving at a lower peripheral speed than the sheeting rollers 10, 11, 12, 13, receives dough strips therefrom and causes them to be compressed in length. A trough 36 mounted on counterbalanced rotatable arms 33, receives the leading edge of a dough strip and is carried thereby around the periphery of the drum 19 until the strip is flipped off on to a transversely-moving conveyer 20, where it is coiled by a wire cloth 55, Fig. 4, rolled by a spring-mounted presser belt 56 and delivered to the baking pan. Spring 46, Fig. 2, and dashpot mechanism 40 limit the travel of trough 36 and reposition it to receive the next following dough strip.
Patent GB-728432-A (GB)
Title: Improvements in or relating to semi-conductor crystal circuits
Inventor: CROW DUNCAN ACHESON
IPC: H03K4/501
Filed: 1949-11-17
Abstract: 728,432. Transistor oscillator circuits. POSTMASTER GENERAL. Oct. 23, 1951 [Nov. 17, 1949], No. 29487/49. Class 40 (6). In a relaxation oscillator circuit constituted by a crystal triode having a current amplification greater than unity and a feedback path between collector and emitter electrodes, the frequency of oscillation is locked by including a series resonant circuit in the feedback path. In Fig. 3, relaxation oscillations are provided by the charging and discharging of condenser C1 connected in series with variable resistor R4 between the collector C and emitter E electrodes. The condenser C1 discharges through the low emitter-base resistance during the "mark" period, and charges through resistors R2 and R4 during the " space " period. Piezo-electric crystal K connected in parallel with C1, R4 effectively superimposes a high frequency oscillation on the relaxation waveform so that the circuit triggers from one state to the other at a subharmonic frequency of the crystal. The Provisional Specification also describes a sinusoidal oscillator in which capacitor C1 and resistance R4 are omitted from the circuit of Fig. 3.
Patent GB-519269-A (GB)
Title: Improvements in and relating to floor sweeping, polishing and like machines or devices
IPC: A47L11/04
Filed: 1938-10-12
Abstract: 519,269. Floor cleaning machines. CO-OPERATIVE WHOLESALE SOCIETY, Ltd., and OWEN, J. Oct. 12, 1938, No. 29488. [Classes 19 and 138 (i)] A floor sweeping, polishing and like machine or heavy map or pad is provided with a buffer 7, of rubber recessed for attachment to a hook shaped fitting 6 secured to the machine. The fitting is preferably of metal 1, Fig. 3, with bent up ends 6 and pierced at 2 for screws. Protuberances 5 may .be provided to sink into the sides of the machine and position the fitting. The rubber strip 7 may be formed with a continuous groove for attachment to a continuous member corresponding to the hook shaped fittings 6.
Patent GB-973812-A (GB)
Title: Improvements in and relating to a method for the production of printing master sheets
IPC: B41M5/04
Filed: 1961-08-16
Abstract: 973, 812. Printing master sheets. W. RITZERFELD, and G. RITZERFELD. Aug. 16, 1961 [Sept. 22. 1960], No. 29516/61. Drawings to Speci-. fication. Heading G2M. A sheet having a colloid-silver halide layer is exposed to an original and tan-developed to produce non-hardened areas corresponding to the desired image areas of the original using various exposure schemes as with the original, which may be a negative, laterally reversed; reflex procedure and Herschal or lens exposure, the sheet is pressed on to a master sheet blank to transfer the non- hardened areas thereto and the blank is pressed on to a transfer sheet at higher than ambient temperature to transfer hectographic or lithographic material to this, and so produce a printing sheet. The sheet base may be resistant to moisture, e.g. a metal foil, and may carry a hydrophilic lithographite layer, or may be paper or transparent synthetic plastic material.
Patent GB-427743-A (GB)
Title: Improvements in and relating to the building and constructing of canals, channels, dykes, ditches and the like
IPC: E02B5/02
Filed: 1933-10-25
Abstract: 427,743. Canals, dykes, &c. NOFRANGO, Ltd., and WALLER, J. H. DE W., 1, South Frederick Street, Dublin. Oct. 25, 1933, No. 29542. [Class 68 (ii)] A channel, such as a canal, dyke, or ditch, of curved cross-section, is made by excavating the ground to form a trench A, lining it with one or more layers C of woven fabric of vegetable fibre, e.g. hessian, and impregnating these layers with a paste or slurry of concrete D which passes through the meshes and encases the fabric on both sides ; one or more further coatings of concrete of thicker consistency are then applied. A layer F of sand or cement may first be spread in the trench, and the fabric C may first be dipped in the slurry. The edges G may be thickened and reinforced, and may be supported by teams or piles M. A beam L may also be made at the bottom of the trench.
Patent GB-675192-A (GB)
Title: Improvements in and relating to dynamo-electric machines
IPC: G05B11/01
Filed: 1948-11-15
Abstract: 675,192. A.C. commutator machines. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 15, 1948 [Nov. 14, 1947], No. 29615/48. Addition to 675,191. Class 35. An amplidyne which can be used either as a variable speed A.C. motor or as an alternator having the E.M.F. frequency independent of speed has the quadrature component of the armature reaction produced by the circuit included in the brushes 3, 4, and the direct component of the armature reaction produced by the circuit included in the brushes 5, 6. The first circuit includes a primary 7 of a transformer 8 the secondary 9 of which is connected to a condenser 10 for tuning purposes. The second circuit includes a compensating winding 14 and the load terminals 12, 13. A third circuit includes field winding 15, a primary 16 of a transformer 17 and a control frequency source, e.g. signal generator or a tuning fork oscillator. The secondary 18 of transformer 17 is connected to a condenser 19 used as a tuning capacitance for the field control circuit. The arrows 21, 22, 23, 24 denote the direction of the axes of the fluxes produced by the quadrature armature reaction, direct armature reaction, field winding and compensating winding respectively when the amplidyne is used as an alternator and, when it is used as a motor, the direct armature reaction is additive to the field excitation instead of being in opposition.
Patent GB-340049-A (GB)
Title: Improvements in or relating to electric discharge tubes
IPC: H01J19/66
Filed: 1929-10-01
Abstract: 340,049. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabricken). Oct. 1, 1929. Low - pressure metallic-vapour apparatus; vacuum tubes.-Electric discharge tubes such as discharge tubes for the reception or amplification of electrical oscillations, rectifiers, glow-discharge tubes, and the like are provided with a foot consisting of a metal disc carrying one or more electrodes. In one form comprising a four-electrode amplifying-valve the tube 1, Figs. 1 and 2, is closed at its bottom end by the metal disc 10 which constitutes the foot of the tube and is perforated for the passage of the supply leads, the disc preferably being made of ferro-chromium, which is only slightly porous and has a coefficient of expansion corresponding to that of glass, so that its edge can be sealed to the glass wall of the tube 1. Contact-pins 13 - - 16 passing through the perforations in the metal disc are insulated from it by glass fillings, and the inner face of the disc is covered by a layer of glass 12. The pin 13 is secured to a carrier 6 which may serve as a connection to the anode 5, and glass rods 7, 8 secured to the carrier 6 carry a controlgrid 3 and an auxiliary grid 4 in addition to the incandescent cathode 2, which is attached at the top to a spring 9 secured to the glass rod 7. The top of the tube is closed by a metal cap 11 which is connected to the inner grid. The tubes may also comprise three electrode systems 27 - - 29, Fig. 5, enclosed within a glass bell 26 provided with a perforated metal plate or foot 25 sealed to its edge. The three systems have a common incandescent cathode 30 which is kept taut by a spring 33, and has its ends connected to pins 31, 32 adapted to make contact with contact springs on the bottom of a holder 31 provided with a rim 35, similar contact springs being provided to bear upon contact pins connected to the grids and anodes of the respective systems. Lugs 37 on the foot, of the tube guides 36 in the rim of the holder and provide a clamping- connection. In another form a triode valve has a metal foot comprising a metal disc with a rim which is sealed to the glass wall of the tube and is adapted to be secured to a holder by a bayonetjoint.
Patent GB-1096666-A (GB)
Title: Fraud prevention mechanism for bulk liquid delivery vehicle
Inventor: BUTCHER ALAN GEORGE
IPC: B67D7/22
Filed: 1965-07-13
Abstract: 1,096,666. Dispensing liquids. WAYNE TANK & PUMP CO. Ltd. June 24, 1966 [July 13, 1965], No. 29738/65. Heading A4T. A liquid fuel delivery vehicle in which pumped fuel passes a meter driving a quantity register associated with a ticket printer TPMS from which the ticket cannot be withdrawn until start and final quantity readings are on it, and in which the pump drive is deactivated when the vehicle moves, is characterized by the combination of a delivery line valve SV automatically closed on deactivitation of the pump and valve opening means requiring re-activation of the pump and operation of the ticket printer, thereby faciliting the detection of fraud. A ticket printer switch TPMS is momentarily closed by movement associated with the printer, e.g. when a printer tray moves outwardly at the start of delivery to energize relay R1 via holding contacts R1/1 and normally closed contacts R2/1. Relay R2 is energized only when pressure switch PS is closed by delivery line pressure when the pump power takeoff is engaged or when the take-off lever operates the switch directly, and when normally open contacts R1/2 are closed by relay R1. Energizing relay R2 opens contacts R2/1 to de-energize relay R1, but relay R2 is held in by contacts R2/2 until the switch PS is opened, energized R2 keeping contacts R2/3 closed to energize valve solenoid SV.
Patent GB-1519972-A (GB)
Title: Data transmission system
IPC: H04L27/36
Filed: 1975-07-16
Abstract: 1519972 Data transmission NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP 16 July 1975 [19 July 1974 12 April 1975] 29773/75 Heading H4P A transmission system, e.g. for facsimile signals comprises a source producing unipolar pulses, each pulse assuming an arbitrary level, an amplitude modulator for amplitude modulating a carrier by a train of the unipolar pulses, and means for phase modulating either the carrier supplied to the modulator or the amplitude modulated carrier in a manner such that the carrier or the modulated carrier assumes one of predetermined N phases cyclically in a given sequence as the individual unipolar pulses of the train appear. As shown, a source 1 supplies a train of unipolar pulses to a discriminator 2, e.g. a Schmidt trigger circuit, which supplies an output signal to a divide-by-N frequency divider 3, such as a ring counter, when the input signal is above a predetermined level, so that at each of the N output terminals of the frequency divider an output is obtained which will be sequentially shifted by one for each unipolar pulse in the input train, thus completing one cycle for N inputs. The frequency divider outputs are applied to phase modulating circuitry, including a pulse generator 7, a frequency divider 8, AND gates G1 to GN, OR gates 9, 10 and a flip-flop 11 arranged to produce the phase modulated carrier. This carrier is applied to an amplitude modulator 5 comprising an operational amplifier 14, an FET 16 and a filter 17, the signal for transmission being taken from output terminal 6. The way in which the circuitry operates to produce signals of the required characteristics is described with reference to Figs. 5 and 6 (not shown). An embodiment in which the carrier is initially amplitude modulated and the modulated output then phase modulated is described with reference to Fig 8 (not shown). Suitable receiver arrangements for the system may include an envelope detector and are described with reference to Figs. 9 to 14 (not shown). The transmitted signal may be in the form of a vestigial sideband signal. The specification explains, with reference to Figs. 1 to 4 (not shown), how the arrangement results in a system requiring a lesser transmission bandwidth than the known amplitude modulated double sideband transmission systems.
Patent GB-164705-A (GB)
Title: Improvements in sparking-plugs
IPC: H01T13/46
Filed: 1920-10-22
Abstract: 164,705. Meissner, O. June 11, 1920, [Convention date]. Sparking-plugs.-The earthed electrode is conical and is either integral with the casing or retained by a ring o. The spark gap is protected from oil by a plate m carried either by the ring o or central electrode p.
Patent GB-1470872-A (GB)
Title: Gas turbine recuperators
IPC: F02C7/10
Filed: 1974-07-05
Abstract: 1470872 Gas turbine recuperators GENERAL ELECTRIC CO 5 July 1974 [30 July 1973] 29914/74 Heading F4S In a counterflow recuperator utilizing exhaust gases from a turbine for heating incoming high pressure combustion air and incorporating a number of heat exchange tube banks 27 each comprising a stack of laterally extending rectangular cross-section gas tubes 29 alternating with air tubes 31, pressure-tight chambers 41 filled with air under pressure are located at opposite ends of each tube bank 27 to prevent distortion or bowing of the tube banks ends due to forces exerted by the flow of high pressure air to be heated through the tubes 31. Tie straps 51 are used to hold the tubes of the banks together and to secure the air chambers 41 to the ends of said tube banks. Each air chamber 41 comprises a semicylindrical body portion and quarter-spherical end caps 43. Air to be heated enters the air tubes 31 in the banks 27 via an inlet connection 23 and distribution plenum 35 and is discharged from the tubes into a collection plenum 37 and outlet connection 25. Heated high pressure air bled from the collection plenum via tubes 45 may be used to pressurize the air chambers 41. Alternatively air from an external source may be used. The gas tubes 29 are provided with corrugations on the inner surface of their side walls.
Patent GB-431246-A (GB)
Title: Improvements in or relating to braun tubes
IPC: H01J29/82
Filed: 1934-10-19
Abstract: 431,246. Cathode ray tubes. ARDENNE, M. VON, 19, Jungfernstieg, Lichterfelde-Ost, Berlin. Oct. 19, 1934, No. 29938. Convention date, Nov. 30, 1933. [Class 39 (i)] The electrodes generating, concentrating and deflecting the ray are all carried by a tubular insulator A surrounding them and within the evacuated tube B. The electrodes C modulating and accelerating the ray and acting as a converging lens may be circular or octagonal, the insulator A having a corresponding crosssection. The electrodes C are positioned by steps inside the insulator A and by resilient flanges 2. The cathode C<1> is supported by mica discs 6, 8 on a disc C<2>. The deflecting plates K are arranged as shown or are formed by electrolytic metallisation of the insulator A. A shield M intercepts secondary electrons from the screen L of the tube. The electrode leads D are outside the insulator A and are connected to the electrodes through apertures 4 in the insulator. The ray is shielded from the leads by the flanges 2, by the insulator A and by biassed metal coatings E inside or outside the insulator. The insulator A is of ceramic material and is supported by the leads D, by glass rods or tubes or metal rods G in the glass pinch F or by a clamp around the pinch.
Patent GB-689132-A (GB)
Title: An improved machine for clamping a ring of u-section on the open edge of a container
IPC: B67B3/14
Filed: 1950-12-08
Abstract: 689,132. Capping containers. BRUUN, O. J. Dec. 8, 1950, No. 30114/50. Class 125(ii) A conical container 1 having a closure 2 formed with an inverted U-shaped edge flange 3 set thereon is supported on a spring-biased support 4 slidable in a matrix 5 and is depressed by a plunger 7 so that the two parts of the U-shaped flange are pressed together against the top edge of the container 1 by co-operating conical surfaces on the outer face of the plunger 7 and the inner top edge of the matrix 5. The top of the support 4 is preferably provided with a container-receiving opening 10. Upward motion of the support is limited by a lower flange thereon engaging an abutment 9 on the matrix. The container may be of the form shown in Fig. 3 of Specification 689,096.
Patent GB-493808-A (GB)
Title: Improvements in apparatus for rolling leather and like materials
IPC: C14B1/30
Filed: 1937-11-03
Abstract: 493,808. Leather rolling machines. ELLIOTT, J. C., and BYERS, N. S. Nov. 3, 1937, No. 30131. [Class 76] The bed of a leather-rolling machine is provided at one or both ends with a transverse depression shaped to merge by way of an incline 7 or a curve into the rolling plane of the bed so as to reduce pressure on the edge of the material under treatment. The depression may include a step 8 as shown in Fig. 4, or may be bounded by a step 9 as shown in Fig. 5.
Patent GB-425921-A (GB)
Title: Improvements relating to boxes or containers for needles
IPC: B65D83/02
Filed: 1933-11-01
Abstract: 425,921. Boxes. BRITISH NEEDLE CO., Ltd., and KEESEY, E. W., Argosy Works, Victoria Street, Redditch, Worcestershire. Nov. 1, 1933, No. 30322. [Class 18] A box for gramophone needles has a delivery aperture c at one or each end and an internally arranged closure device d for the aperture. In the form shown in Fig. 2, the aperture is uncovered by withdrawing telescopically a cap member b. The withdrawal of the cap member may be effected by rotating the cap, a projection m on the body of the box engaging a helical slot l in the cap b. The projection m may be replaced by a separate ring sprung into a groove in the cap and engaging within a groove in the body. The device d may be of helical form near its closureforming end to prevent jamming of the needles in the cap.