baber/WOPTO huggingface dataset:
Patent GB-613454-A (GB)
Title: Improvements in and relating to automatic gain-control systems for modulated carrierwave receivers
IPC: G01S13/42
Filed: 1946-03-06
Abstract: 613,454. Automatic gain control; radiolocation. SPERRY GYROSCOPE CO., Inc. March 6, 1946, No. 7000. Convention date, March 6, 1945. [Classes 40 (v) and 40 (vii)] The control voltage developed by an automatic gain control system is fed to an associated modulated carrier frequency amplifier through a filter producing small attenuation of frequencies lower than relevant modulation frequencies and relatively large attenuation of the latter with small phase-change. The circuit is particularly adapted for an object-locating system in which a directional antenna is spun about an axis slightly different from its axis of directivity and the relevant modulation frequency is the spin frequency. The filter comprises, in one embodiment, the bridged T-network of series resistances 37, 38 shunted by capacity 40, and the shunt capacity 39, the A.G.C. rectifier 29 being fed through condenser 27 and the filter output being fed through a cathode-follower stage 42 to the associated amplifier. In a second embodiment the filter comprises a non-inductive parallel T-network. Curves are included in the Specification showing the performance of the filter network.
Patent GB-432741-A (GB)
Title: Improvements in or relating to selective automatic coin and check freed apparatus
IPC: G07F11/54
Filed: 1934-03-05
Abstract: 432,741. Coin-freed article-delivery apparatus. BERGMAN, T., (trading as BERGMANN & CO., T.), 43, Eimsb³ttelerstrasse, Altona, Elbe, Germany. March 5, 1934, No. 7018. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 7, 1934.] [Class 27] Articles stored in piles coin-action, mechanical-connection.-In a coin-freed vending machine in which articles are stored in vertical piles in compartments of a rotary drum, the lowermost article of a selected pile is ejected by an inwardly directed pusher which is coupled to an operating member by an inserted coin and throws the article through a central opening in the drum. As shown, compartments d for the piles of articles are secured between end plates e, c of the drum, the plate c being attached to the central shaft b by means of a spider f situated above the level of the pusher k so as to permit free passage to articles being ejected. The pusher k and a handoperated push-member h terminate in upper and lower halves of a vertical pocket which are coupled together by an inserted coin. The drum can be rotated to bring any of the compartments d opposite the delivery mechanism by means of a handle u, indicating labels over each compartment being visible through an opening o in the casing. " Empty " notices, displaying.-Follower weights m in each compartment engage a curved arm p of a two-armed lever p q connected with an indicating disc t which obstructs the inspection opening o when an empty compartment is brought into the delivery position.
Patent GB-487081-A (GB)
Title: Improvements in or relating to locking clamps for electrical connections of the bayonet-socket type
IPC: H01R33/46
Filed: 1937-03-10
Abstract: 487,081. Two-part couplings. ISMAY & SONS, Ltd., J., and TUCKER, C. March 10, 1937, No. 7093. [Class 38 (i)] A lamp or other coupling of the bayonet type is locked in its socket by a spring clip 10 applied to one member and having tongues that engage in recesses in the other member to prevent the relative movement necessary for uncoupling, the tongues having outwardly - turned ends to facilitate coupling. The tongues 12 enter the bayonet slots 6 and retain the pins 7 therein and the ends 13 of the arms 12 are turned outwardly to enable the clip to ride up on the holder if it is applied to the cap previous to its insertion in the holder. The ends 11 of the clip may be turned outwardly to enable the clip to be applied laterally to the cap and to allow the use of a tool to remove it.
Patent GB-212737-A (GB)
Title: Improvements in foot arch supports
IPC: A43B23/22
Filed: 1923-03-12
Abstract: 212,737. Seavey, E. March 12, 1923. Foot-arch supports. -An arch-support for application below the sole of a boot or shoe consists of a tapering block 10 of rubber which may be provided with a non-slip plug 20 of gritty material such as cement, filings, emery &c., and a suction cup 21. The block 10 is narrower than the boot and in order to brace the arch b at the unsupported parts and also to attach the block to the boot, a base 12 of greater width than the block is secured to the sole by fasteners which pass through holes 14 in the base 12. The base holds the block by means of depending flanges. 15 whicb are indented or corrugated to grip the block. The block may also be vulcanized to the base and holding pins may be passed through the flanges 15 and the block. The base 12 may extend rearwardly to lie between the lifts of the heel a.
Patent GB-992970-A (GB)
Title: Improvements in or relating to chemical condensation reactions
IPC: C07C403/00
Filed: 1962-02-23
Abstract: Aldehydes and ketones of the Vitamin A series are condensed with cyanoacetic acid and esters, amides, nitriles and unsaturated homologues thereof, in an aliphatic carboxylic acid having 3 to 7 carbon atoms as a solvent, with or without another solvent, and in the presence of an ammonium salt of the carboxylic acid as a condensation agent Compounds in the Vitamin A series which are mentioned have the formulae <FORM:0992970/C2/1> <FORM:0992970/C2/2> <FORM:0992970/C2/3> <FORM:0992970/C2/4> <FORM:0992970/C2/5> <FORM:0992970/C2/6> <FORM:0992970/C2/7> <FORM:0992970/C2/8> Cyanoacetic acid and derivatives mentioned have the formulae <FORM:0992970/C2/9> <FORM:0992970/C2/10> <FORM:0992970/C2/11> <FORM:0992970/C2/12> where R is -COOH, esterified-COOH, -CONH2 or -CN, Alk is an alkyl group and n is 1 or 2. Product obtained in examples have the formulae <FORM:0992970/C2/13> <FORM:0992970/C2/14> <FORM:0992970/C2/15> <FORM:0992970/C2/16> <FORM:0992970/C2/17> <FORM:0992970/C2/18> <FORM:0992970/C2/19> and the condensations are carried out in a mixture of propionic acid and benzene containing ammonium propionate.
Patent GB-603234-A (GB)
Title: Impedance matching
IPC: H01P5/02
Filed: 1945-03-21
Abstract: 603,234. Impedance matching. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. March 21, 1945, No. 7202. Convention date, March 22, 1944. [Class 40 (viii)] In order to match a load to the characteristic impedance Zo of a coaxial - line, a length of line substantially less than #/4 is included having an inner conductor of different radius and a consequent different characteristic impedance Zoo. In one embodiment, Fig. 1, the matching length l, equal to #/8, has its diameter effectively increased by a sleeve 16 slidable along the inner conductor. Curves are given for obtaining the correct ratio Zoo/Zo and the requisite distance X of the sleeve from a voltage node 14, in terms of the reflection coefficient due to the mismatch of the load to the cable. The size of the sleeve is convenient for introduction into the usual type of cable whose supports for the inner conductor have #/4 spacing. Alternatively a portion having an inner conductor of restricted diameter may be used.
Patent GB-596222-A (GB)
Title: Improvements in or relating to the extraction and recovery of alkaloids
IPC: C07G5/00
Filed: 1944-04-19
Abstract: Alkaloidal substances or salts thereof are extracted from the natural materials in which they occur by a process which comprises first preparing an acid or neutral aqueous or alcoholic extract, followed by the treatment of this extract with a water-immiscible phenol, and separating the phases.  Finally, the alkaloidal substance is recovered from the phenolic phase.  The preferred method of recovery is to dilute the phenolic phase with a solvent or a mixture of solvents miscible with each other and with the phenol or phenols used, but immiscible with water, and then shake out the solvent diluted phenolic phase with an aqueous phase having a pH between 1.0 and 7.0.  An alternative system of recovery of the alkaloid salts insoluble or sparingly soluble in water from the phenolic phase is to dilute the phenolic phase, with a solvent or solvents miscible with phenol but immiscible with water, decant the phenol-solvent mixture from the precipitated salts and subjecting the decanted phenol-solvent mixture to the first-mentioned recovery process.  Not all alkaloids are suitable for treatment according to the present invention, and a test is described as a rapid and easy means of ascertaining whether a given alkaloid is suitable.  Alkaloids which are mentioned as capable of being extracted by the present invention include quinone, strychnine, atropine, hyoscyamine, hyoscine, morphine, caffeine and the Alstonia alkaloids.  In an example, an alcoholic extract of Alstonia bark from Alstonia constrieta (Mollis) is vacuum evaporated, dilute aqueous sulphuric acid is added and the resulting aqueous acid extract treated with cresylic acid.  The phenol extract (containing all the alkaloids) is diluted with ether and water and the two layers separated.  The aqueous layer is treated with potassium carbonate to precipitate the alkaloids which consist of a mixture of hyocyamine, atropine and hyoscine.  The phenol layer is extracted with sulphuric acid, and the extract saturated with potassium carbonate to separate the remaining alkaloids.
Patent GB-1180405-A (GB)
Title: Method and Apparatus for Graphically Illustrating the Continuous Movement of an Object
Inventor: HALADA LADISLAV
IPC: G03B15/08
Filed: 1967-02-16
Abstract: 1,180,405. Draughting machines. USTREDNI REDITELSTVI CESKOSLOVENSKEHO FILMU. Feb. 16, 1967, No. 7387/67. Heading G1X. [Also in Division G2] A process for use in the preparation of cartoon films or animated displays comprises breaking the movements to be represented down to a number of finite steps say 0, 1, 2, 3, 4 positions and so on, then using the 0, 1, 2 position as starting, middle, and end positions for say a moving curved line to be represented, and subsequently using the 2, 3, 4 positions as starting, middle, and end positions and so on, the movements in each case being resolved into movements in x and y directions wherein the movements for each of the starting middle and end positions can be represented by curves 1 positioned in accordance with mechanism following x and y templates 8, and the templates being so shaped that on movement in the direction of the arrows the curves 1 will alter in shape to represent the desired movement, the shape of the curves 1 being followed at each position, by followers 4 whose movements are connected to x and y carriages on a draughting machine having a stylus a which will draw at the desired intermediate positions of the curved line between the chosen starting and end points in each case. For each set of starting middle and end positions chosen a new set of templates 8 is required and metal foil 13 on one of the templates is used to control a solenoid 15 to raise the stylus a from the drawing surface when required by the nature of the drawing.
Patent GB-472048-A (GB)
Title: Improvements in roofing and building tiles and the like
IPC: E04D1/12
Filed: 1936-03-12
Abstract: 472,048. Roof and wall tiles. BROWN, T. A., and JENKINS, D. A. March 12, 1936. Nos. 7443 and 14667, [the second Provisional Specification being divided out of the first Provisional Specification]. [Class 87 (i)] A metal, glass, porcelain, asbestos-cement, concrete or clay roof or wall tile to be secured without nails or clips has a projection or rib a at the upper end to abut the lower edge of a supporting member, and a further projection or rib b near the centre on the other end of the tile, the latter projection being at an angle or curve to the tile face to grip the upper edge of another supporting member to prevent lifting. Each projection may extend wholly across the tile or may comprise two small projections adjacent the sides of the tile, and in the case of metal tiles may be stamped out, Fig. 2.
Patent GB-1356582-A (GB)
Title: Process for the manufacture of prostadienoic acid derivatives
IPC: C07C405/00
Filed: 1971-03-22
Abstract: 1356582 Prostaglandins; dimethyl 2-oxononylphosphonate IMPERIAL CHEMICAL INDUSTRIES Ltd 9 Feb 1972 [22 March 1971] 7469/71 Headings C2C and C2P The invention comprises a process for the manufacture of either C-15 epimer of 20-ethyl- 9α,11α,15 - trihydroxy - cis - 5, trans - 13- prostadienoic acid or an ester thereof with a C 1-6  alkanol which includes the crystallization of a mixture of the epimers of the p-phenylbenzoate ester of the Formula II containing 50% or more of one epimer to give a compound of Formula II enriched in that epimer and containing at least 75% of that epimer, a compound of Formula II above containing at least 75% of one epimer and a mixture of equal parts of the epimers of Formula II above, which is obtained by reducing 2,3,3α#, 6α# - tetrahydro - 2 - oxo - 4# - (3 - oxodec - trans- 1 - enyl) - 5α - (p - phenylbenzoyloxy)cyclopenteno- [b]furan resulting from the reaction between dimethyl 2-oxononylphosphonate, n-butyl lithium and 2,3,3α#,6α# - tetrahydro - 4# -formyl- 2 - oxo - 5α - (p - phenylbenzoyloxy)cyclopenteno- [b]furan, resulting from the oxidation of 2,3,3α#, 6a# - tetrahydro - 4# - hydroxymethyl - 2 - oxo- 5α - (p - phenylbenzoyloxy)cyclopenteno[b]furan, obtained by the demethylation of 2,3,3α#,6α#- tetrahydro - 4# - methoxymethyl - 2 - oxo - 5α - (pphenylbenzoyloxy)cyclopentenu[b]furan, which is prepared by diodinating 2,3,3α#,6α#-tetrahydro- 6# - iodo - 4# - methoxymethyl - 2 - oxo - 5α - (pphenylbenzoyloxy)cyclopenteno[b] furan, obtained by reacting p-phenylbenzoyl chloride with 5α- hydroxy - 6# - iodo - 4# - methoxymethyl - 2- oxo - 2,3,3α#,6α# - tetrahydrocyclopenteno[b]- furan. 20 - Ethyl - 9α,11α,15 - trihydroxy - cis - 5, trans-13-prostadienoic acid (90% of S-epimer) is prepared by hydrolysing the corresponding 11α,15-bis-(tetrahydropyranyl)ether, obtained by adding (4 - carboxybutyl)triphenylphosphonium bromide to a solution of 2,3,3α#,6α#-tetrahydro - 5α - (tetrahydropyran - 2 - yloxy) - 4# - [3S- (tetrahydropyran - 2 - yloxy) - dec - trans - 1- enyl] - 2# - hydroxycyclopenteno[b]furan, resulting from the reduction of the corresponding 2- oxocyclopenteno[b]furan derivative, which is prepared by reacting dihydropyran 2 with 2,3,3α#, 6α# - tetrahydro - 5α - hydroxy - 4# - (3S - hydroxydec - trans - 1 - enyl) - 2 - oxocyclopenteno[b]furan, resulting from the hydrolysis of the 3S-epimer of the compound of Formula II above. Dimethyl 2-oxononylphosphonate is prepared by reacting dimethyl methylphosphonate with nbutyl lithium and ethyl octanoate.
Patent GB-140106-A (GB)
Title: Method of recovering the energy employed in the testing of engines
IPC: G01M15/04
Filed: 1920-03-12
Abstract: 140,106. Siemens-Schuckertwerke. Sept. 5, 1918, [Convention date]. Systems for continuous-current motors only.-Relates to a method for ascertaining and utilizing the power developed by an engine during a run for test purposes and consists in an arrangement whereby a series of engines may be tested and in which each engine can be coupled to a corresponding dynamo, the dynamos D<1>-D<5> being connected in series with a motor M and a loading resistance or other motors which can be employed for driving any power consuming plant G. The diagram Fig. 1 shows the regulating and control arrangements for one of the dynamos D<3> and for the motor M and an exciter E for supplying voltage to the bus bars. In the circuit of the exciter winding 11 of the dynamos is included an ammeter 20 and a regulating resistance 12 controlled by a contact lever 13 which is adapted to short circuit the contacts 24, connected with the armature terminals, when the dynamo is not running or stops as the result of a breakdown. The lever 13 is rigidly attached to a lever 16 which regulates a resistance in the circuit of a voltmeter 19 adapted to read the number of revolutions of the engine B being tested, and is held in set position against the action of a spring 14 by means of a ratchet and pawl device 17, a pointer being provided which reads on a scale graduated to show torsional moment values. The movement of the lever loads the dynamo and supplies voltage to the armature of the motor M, thereby creating a current which causes a magnet 10 to act. Said magnet 10, as the current reaches or exceeds a determined value, controls the contacts 9 so as to reverse the armature circuit of a motor 7 which drives a switch lever 5 adapted to vary the exciter resistance 2 and a loading resistance 3 which is arranged in parallel or in series with the terminals of the motor and thereby maintains the current flowing through the armatures of the dynamos at a uniform value. Instead of the loading resistance 3 being put in the circuit when the motor M has been fully excited, a second loading motor may be provided to take up the excess outlet of the motors being tested. An ammeter 21 is provided in the armature circuit, the coils of which can be connected with those of the ammeter 20 so that by a single pointer the torsional moment can be observed directly.
Patent GB-1014082-A (GB)
Title: Power operated rotary impact tool
IPC: B25B21/02
Filed: 1961-12-14
Abstract: 1,014,082. Nut runners. S. B. MAURER. Dec. 14, 1961, No. 7482/65. Divided out of 1,014,081. Heading B3N. [Also in Division F2] A rotary impact tool comprises a housine 10, an air motor formed by a reaction shaft 18, and a rotor assembly 13, including a hammer 14 surrounding and being capable of limited rotary motion relative to the shaft, to drive an anvil 11, the shaft and rotor assembly being rotatable relative to the housing. Shaft 18 is keyed to anvil 11, and the air motor comprises a cylinder 22 closed at its ends by a plate 23 and hammer 14. A vane 27, Fig. 6, is carried in a slot 26 in shaft 18, and a spring-urged vane 29 is carried in cylinder 22, thus dividing the cylinder into two chambers 30, 31. A hub 54 is slidably keyed to shaft 18 and frictionally engages a neoprene ring 56, which in turn frictionally engages a drum 57, these members forming an overload slip clutch. Mounted on drum 57 is a spring clutch 59, the forward end 60 of the spring being confined in a slot 62 in a bush 63 and the rearward end 61 being free to move slightly in a circumferential direction in a clearance groove 64. Hub 57 can move in the clockwise direction but is restrained from counterclockwise motion. When a manually operated button 65 is pushed inwardly, hub 54, ring 56, drum 57, and clutch 59, are moved and end 60 is moved out of slot 62, and end 61 moves into the slot thus reversing the action of clutch 59. In operation air is admitted to chamber 30 of the motor, and chamber 31 is exhausted through port 35, bore 38, port 39, and holes 40, Figs. 4, 8. Vane 29 and therefore cylinder 22 are moved in the counterclockwise direction until the vane passes the exhaust port 35, Fig. 5, at which time chamber 30 is connected to atmosphere, and chamber 31 is sealed off. Rotor 13 coasts in a counter-clockwise direction due to its kinetic energy. The rotor is first decelerated and then accelerated in the clockwise direction due to the pressure in chamber 31, until vane 29 again passes port 35. Hammer 14 impacts anvil 11, in a clockwise direction, and the rotor assembly rebounds to start a further cycle. Port 36, Fig. 5, is used for exhausting, when the tool rotates in the reverse direction. U.S.A. Specification 2,898,791 is referred to.
Patent GB-1168011-A (GB)
Title: Composite Structural Materials
Inventor: MOLYNEUX WALTER GUILLAM
IPC: E04C2/26
Filed: 1967-02-16
Abstract: 1,168,011. Fibre-reinforced laminates. MINISTER OF TECHNOLOGY. 24 Jan., 1968 [16 Feb., 1967], No. 7514/67. Heading B5N. A laminate comprises a non-metallic matrix sheet provided with a reinforcement of fibres or filaments, at least a majority of which are in parallel alignment along, and parallel to, the faces of the sheet, said sheet being bonded to at least one facing layer of metal. The reinforcement may comprise carbon or glass fibres or metal filaments, and the metal layer may be aluminium alloy, titanium alloy or steel. The matrix may be an epoxy or polyester resin with which the reinforcement is impregnated; the metal layer may be cooled with resin at the interface to assist bonding. Some of the reinforcing fibres or filaments, e.g. less than 15%, may extend at right angles to the remainder. Single layers of composite material may be assembled to form a composite structural member, the resin layers being cured by heat and pressure before or after such assembly.
Patent GB-380519-A (GB)
Title: Improvements in or relating to loading or conveying systems
IPC: E21F13/06
Filed: 1931-06-13
Abstract: 380,519. Scoop apparatus for transporting loose material. BROWN, S. WALTON-, Seghill Hall, Dudley, Northumberland. June 13, 1931, No. 7515/32. Divided on 380,789. [Class 78 (iv).] In a loading or conveying system, particularly for use in mines, comprising a selfloading scoop or scraper s hauled to and from a loading bridge q by head and tail ropes, the bridge is provided with raised sides c which engage with cheeks d, rollers or equivalent parts along the length of the scoop, so as to support the scoop securely during discharge. As shown in Fig. 2, the scoop is hauled up an incline p on to the bridge and discharges between shoots l, l. The parts c may be supported from above. Rollers on the scoop may run between angleirons on the bridge. The scoop may be guided by engaging beneath a bar. As shown in Fig. 3, a scoop s with closed bottom is discharged by tipping on inclined raised bearers c, the movement being limited by a cross-bar x. The supports c may be fixed on a gate-end loader or conveyer. An open-bottom scoop may deposit the material at b, Fig. 3, and on the succeeding journeys push it over the edge b<1> into any desired receptacle. The scoop may be constructed as described in Specifications 352,930, 379,365, or 380,789.
Patent GB-1536671-A (GB)
Title: Containers
IPC: B65B7/28
Filed: 1975-02-22
Abstract: 1536671 Heat-sealed container closures METAL BOX Ltd 16 Jan 1976 [22 Feb 1975] 7520/75 Heading B8T A method of attaching a closure 1, which may be a cap or a lever lid of the plug type, to a substantially rigid container 2 comprises the steps of forming a portion of the container to a shape to receive the lid, at least said shaped portion being provided with a heat-sealable coating; providing a lid and applying to the body engaging portion of the lid a gasket of heat-sealable material 8; positioning the lid on the container and applying heat and pressure to join the lid and body to form an hermetic seal. The body is preferably provided with a vinyl coating 9 and the lid with a polyvinylchloridebased plastisol lining.
Patent GB-548406-A (GB)
Title: Improvements in and relating to actuating mechanism for windows, doors and the like
IPC: E05F11/38
Filed: 1941-06-13
Abstract: 548,406. Door-operating appliances. BRIGGS MANUFACTURING CO. June 13, 1941, No. 7534. Convention date, June 28, 1940. [Class 65 (i)] [Also in Groups XXIV and X] Relates to locking-devices in which an actuated member is automatically locked so that it can only be moved by the actuating-member, and is applicable to regulators for windows, door or the like. As shown, a handle 20 has a hub 24 having a ring 29 splined thereto. The latter has lugs engaging recesses in a cage 33 located in a fixed casing 27. Struck out tongues 35 on the cage 33 engage with play a slot 39 in a square shaped block 36 the other side of which has a slot 38 snugly engaged by projections 40 on a toothed pinion 42 which is geared to a window or the like. Locking members such as rollers 44 spaced by slots 33a in the cage 33 are located between the flat faces of the block 36 and the cylindrical internal surface of the casing 27. A spring-pressed locking bolt 24a holds the parts in position. Upon rotation of the handle 20 all of the members located within the fixed casing 27 are rotated together so that the pinion 42 turns to actuate the window, door or the like. Any attempt to actuate the window, other than by turning the handle 20, causes the rollers 44 to jam between the casing 27 and the block 36.