baber/WOPTO huggingface dataset:
Patent GB-388214-A (GB)
Title: Improvements in or relating to signalling devices for pedal cycles having back-pedalling brakes
IPC: B62J6/00
Filed: 1932-02-26
Abstract: 388,214. Road-traffic signals on vehicles. GRIESHABER, E., 305, Schillerstrasse, Engen, Baden, Germany. Feb. 26, 1932, No. 5848. [Class 118 (ii).] A signalling-device for pedal cycles having back-pedalling brakes comprises a " Stop " signal 6 operated by application of the backpedalling brake. A switch lever 16 in the form of two spring arms grips the gear wheel 17 and is held in contact with the terminal 14 by the forward rotation of the gear wheel, and so closes the circuit of the rear lamp 5. On reversing the direction of rotation of the wheel 17 to apply the brakes, the lever 16 is raised into contact with the terminal 15 and so closes the circuit of the stop light 6, while opening the circuit of the lamp 5.
Patent GB-443463-A (GB)
Title: Process for the production of reduction products of the male sexual hormone and like substances
IPC: E04B2/86
Filed: 1935-02-23
Abstract: The male sexual hormone together with compounds of saturated and unsaturated cyclopentanophenanthrols which contain a keto group insofar as they exhibit the action of the male sexual hormone and contain no benzene ring in the molecule are reduced to saturated alcohols.  The reduction is preferably carried out in alcoholic solution by the action of sodium, or by the action of aluminium foil in the presence of water, or by catalytically activated hydrogen under elevated pressure.  In all cases care must be taken that the reduction does not proceed beyond the alcohol stage to the desoxo product.  The reduction products possess a physiological activity many times that of the starting materials, which may be the male sexual hormone C19H30O2, or its unsaturated derivatives of formula C19H28O2 or the materials of the formula C18H28O2 obtained according to Specification 421,681.  Crude extracts of products with the activity of the male sexual hormone as are obtained from urine, body liquids, organs, and the like can also be converted by reduction into diols of essentially higher value.  In examples: (1) crystalline male sexual hormone of the formula C19H30O2 is reduced by sodium in alcoholic solution to give a product of formula C19H32O2; (2) crystalline male sexual hormone is treated in cyclohexanol solution with hydrogen under pressure in the presence of a nickel catalyst. The reduction product exhibits a physiological activity of 5 times that of the parent material.  Specification 346,130 also is referred to.
Patent GB-540294-A (GB)
Title: An improved indicating device for dial instruments
IPC: G01D13/22
Filed: 1940-04-02
Abstract: 540,294. Indicating-apparatus. SLEEPER, C. E. April 2, 1940, No. 5887. [Class 106 (iv) ] In apparatus having a moving disc, ring, or segment as indicator, the disc A is provided with a pointed projection as pointer and an aperture C to reveal markings on a plane B underneath the indicator. Fig. 1 shows a fluid-level indicator in which the shaded marking is red and the dial will indicate " Empty " at 0 degree, " Half -full " at 90 degrees and " Full " at 180 degrees. The circle of the indicator plane may be divided into a half-circle of green and the other quarters red and amber respectively. These may be on a disc B which is mounted on a ring bearing E and may be rotated by friction gear I, H, G to displace the disc so that the colours appear at the desired place. The disc may be transparent and illuminated by a lamp N which may move with the friction drive or the illumination may be from the lamp indirectly by reflection. The " amber " and " red " segments may be mounted independently on a green disc and adjusted separately by friction gear. Reference has been directed by the Comptroller to Specifications 245/15, 166,011, 293,402, [all in Class 106 (iv)], and 436,710.
Patent GB-662430-A (GB)
Title: Improvements relating to projectiles
IPC: F42B10/12
Filed: 1945-03-09
Abstract: 662,430. Projectiles. BLACKER, L. V. S. March 11, 1946. [March 9, 1945] No. 5957/45. Classes 9 (i) and 9 (ii). A bomb, to be projected from a barrelled weapon and comprising a warhead 11 and a long and narrow tail 12, has a tail stabilizer 13 slidably mounted on the tail, the stabilizer and the weapon having self-engaging complementary parts serving to hold the stabilizer in position as shown. The stabilizer lies close to the warhead when the bomb is mounted with its tail extending into the muzzle of the barrel as shown, and during the initial forward movement of the bomb the tail slides through the stabilizer which thereafter remains against a tail abutment 15 to stabilize the bomb during its flight. The stabilizer shown has outer and inner cylindrical parts 16, 17, joined by webs 18, the part 17 sliding on the tail and having two walls 19, 20, which embrace the forward end 21 of the gun barrel or barrel extension. The outer wall 20 has slots for the passage of spring-pressed pawls 23 which engage in a groove in the barrel or barrel extension to hold the stablizer in position. Upon discharging the bomb the abutment 15 strikes the end of wall 19 causing the pivot pins of the pawls to shear, so that the tail carries the stabilizer away with it. In a modification the pawls are disposed with and the metal of the wall 17 has pressed from it resilient tongues which engage the groove in the barrel and which sever on discharge. In another modification the wall 20 is dispensed with. Specification 662,429, is referred to.
Patent GB-114501-A (GB)
Title: Improvements in the Manufacture of Sulphate of Soda from Chrome Residues.
IPC: C01D5/16
Filed: 1917-04-28
Abstract: 114,501. Potter & Co., E. P., and Potter, E. P. April 28, 1917. Sodium sulphate and chromium compounds are obtained from the impure sodium sulphate containing sodium dichromate, which is produced in the manufacture of sodium dichromate by causing the dichromate to form an insoluble compound and crystallizing out the sodium sulphate. Three methods are described : (1) The residues are heated in a furnace with a reducing agent such as iron, iron pyrites, sulphur, sulphur dioxide, carboniferous material, calcium.sulphide, till incipient fusion occurs, the charge is lixiviated with steam, water, or sodium sulphate liquor, and the clear liquor evaporated. The insoluble residue is used for the manufacture of chromates or dichromates. (2) The residues are dissolved in water and reduced by sulphur dioxide, sulphuretted hydrogen, or an organic compound, and the chromium salts precipitated as hydrated oxide by alkalies or alkaline carbonates. (3) The dichromate is converted into insoluble lead chromate by heating with lead sulphate in a furnace, lixiviating, and evaporating the liquor. The lead chromate is converted into sodium chromate and the lead sulphate used again for the process.
Patent GB-954600-A (GB)
Title: Polyester resin compositions
IPC: C08F283/01
Filed: 1962-02-16
Abstract: A catalyst composition for the curing of a mixture of unsaturated polyester resin and ethylenically unsaturated polymerizable monomer comprises (1) an aldehyde or ketone peroxide (0.2 to 3%), (2) a secondary amine of formula: <FORM:0954600/C3/1> where R is hydrogen or an alkyl or hydroxyalkyl group having from 1 to 6 carbon atoms or a phenyl group and Ar is phenyl or an alkylphenyl group in which the alkyl group has from 1 to 7 carbon atoms (0.03 to 1%) and (3) a cobalt compound soluble in the composition (0.002 to 0.04%) all percentages being by weight and based on the combined weight of polyester and copolymerisable monomer.  The catalyst composition is of particular use in the room temperature curing of a polyester which is a Diels-Alder reaction product of a rosin or abietic acid with a polyester of a glycol and fumaric acid in which the reaction product contains double bonds attributable to unreacted fumarate groups. Specification 604,580 is referred to.
Patent GB-235283-A (GB)
Title: Improvements in and relating to sound recording, transmitting, receiving and reproducing devices
IPC: G11B3/46
Filed: 1924-03-08
Abstract: 235,283. Townshend, F. C., and Clifford, V. J. P. March 8, 1924. Tools-arms.-In apparatus for recording, transmitting, receiving, or reproducing sound, the sound vibrations are transmitted to or from a diaphragm through a system comprising two rigid members and an interposed body of mercury. The invention is particularly applicable to gramophone and like sound-boxes. In the sound-box shown in Fig. 2, two rigid parts c', c<2> of the stylus-bar are connected by a tube a of rubber or the like, containing mercury d. The mercury fills the space between the adjacent ends of the parts c<1>, c<2>, which pass through metal &c. caps on the tube. In a modification, plugs or pistons of wood &c. are fitted upon the ends of the parts c<1>, c<2> within the tube a, which is enlarged. The tube containing mercury may be arranged at right-angles to the diaphragm b, the shape of the parts of the stylus-bar being modified for this purpose. Fig. 6 shows a construction in which the part c<2> is formed with a blade-like end c<5> dipping into mercury in a cup c<4> which is rectangular in crosssection and is provided on the part c<1>. The application of the invention to telephone receivers is mentioned. The Provisional Specification also refers to stethoscopes, and states that instead of mercury, amalgam or other similar substance, or any suitable mixture or combination of mercury with a liquid or solid, may be used.
Patent GB-805560-A (GB)
Title: New monoazo dyestuffs of the benzene-azo-naphthalene series and metal complexes thereof
Inventor: HOWARD GEORGE FRANCIS
IPC: C09B45/14
Filed: 1956-02-27
Abstract: The invention comprises dyestuffs of formula <FORM:0805560/IV (c)/1> where A is a substituted or unsubstituted phenylene radicle which is free from sulphuric and carboxylic acid groups and contains OH oto the azo group and the naphthalene nucleus contains an acyl group of formula -CO.R, in the 3-, 6- or 8-position, where R is an alkyl group of 1-3 C atoms, and their 1,2-cobalt or chromium complexes.  They are made by conventional methods from appropriate o-aminophenols, acylnaphthols and metallizing agents. Specified substituents for the phenylene radicle are methyl, methoxy, chlorine, bromine, nitro, sulphonamido, N-ethyl-, -diethyl-, -isopropyl-, -phenyl- and -cyclohexyl-sulphonamido- and ethyl sulphonyl.  Specified o-aminophenols are 2 - aminophenol - 4 - sulphonamide, -sulphonanilide and -sulphondiethyl-, -isopropyl- and -cyclohexyl - amides, 4 - chloro - 2 - aminophenol-6-sulphonamide, and 4- and 5-nitro- and 4 - chloro - and - ethylsulphonyl - 2 - aminophenols. Specified naphthols are 3-, 6- and 8-acetyl-2-naphthols.  Preferred are the metal complexes derived from 6-acyl-2-naphthols.  The metal dyestuffs which, in the form of alkali metal or ammonium salts, are soluble in water dye animal fibres such as wool and silk, and synthetic nitrogenous fibres such as super-polyamide and -polyurethane and synthetic protein fibres, in red to blue shades. The metal dyestuffs which, as alkali metal or ammonium salts, are insoluble in water, may be used to colour acetate rayon, lacquers, spirit-inks and duplicating-papers.  Examples are provided illustrating the preparation of the dyestuffs and the use of the metal complexes in dyeing, the components being chosen from those indicated above with the addition of 4-methoxy- and -methyl-2-aminophenol as diazo components.  The Provisional Specification describes the preparation of dyestuffs of formula HO-A-N = N-B-COR where A is a phenylene residue which may be substituted by non-ionizing substituents and contains OH oto the azo group, B is a naphthol residue containing OH oto the azo group, and COR is an acyl group attached to the 3- or 4-position of the naphthalene nucleus when the OH group is in the 1-position or the 3-, 6- or 8-position when the OH group is in the 2-position; and their chromium and cobalt 1,2-complexes.  Many components, additional to those already indicated above, are specified, the acyl group being both aliphatic and aromatic.
Patent GB-101449-A (GB)
Title: Improvements in Tripping Mechanism for Offset Printing Machines.
IPC: B41F13/30
Filed: 1916-04-27
Abstract: 101,449. Hoe & Co., R., (Hoe & Co., R.). April 27, 1916. Tripping-arrangements.-Relates to rotary offset machines in which the offset cylinder may be tripped into and out of printing contact with the forme and impression cylinders, and comprises means whereby the offset cylinder may be moved in right lines to and from the forme and impression cylinders. As shown, the offset cylinder 4 is movable vertically to and from the forme cylinder 1, and horizontally to and from the impression cylinder 5. The journal boxes 10 of the offset cylinder are movably mounted in openings in the framing and are guided by flanges thereon engaging the opposite sides of the frame. The boxes are moved vertically by yokes 12, which have forked arms 14 engaging on a transverse shaft 15 so as to guide their movements. In bosses 13 of the yokes are pins 17 engaging links 16, the lower ends of which engage a groove in the shaft 15. A hand-lever is provided for rocking the shaft 15 to trip the cylinder 4 from and to the cylinder 1 when desired. The arrangement shown for tripping the cylinder 4 away from the impression cylinder 5 is controlled from a feeler or detector operated by the feed of the sheet, and when the cylinder is thus tripped, as shown, it remains in printing relation with the forme cylinder 1 for inking up &c., unless the shaft 15 is operated by hand. The detectors 81 are pivoted at 80 to a lever 78 pivoted at 79 on the cylinder 5 and having a bowl 77 engaging a fixed cam 75 on the framing. The bowl 77 also engages the tail 89 of a pawl 88 pivoted at 87 on the frame, the tail 89 being situated adjacent the depression 76 of the cam 75, so that when no sheet is fed, the bowl 77 operates the pawl 88 to engage the end of a lever 86 and actuate a rod 21 to trip the cylinder 4. The lever 86 is pivoted on the end of a camactuated lever 83. When a sheet is fed, the rod 21 is not lifted. This rod 21 is connected to an arm 22 of a lever 24 connected by a spring rod 26 with a pawl 29 pivoted at 30 on a quadrant lever 32. A second pawl 35 is pivoted at 34 on the lever 32, and these pawls 29, 35 have each a shoulder 36 for engagement by a pin 37 on an arm 38 operated by a cam on the cylinder shaft 6. Projections 46 on the pawls keep them the proper distance apart. The pawls operate the quadrant and the pinion 48<1> in opposite directions. The pinions 48<1> have crank-pins connected by rods 50 to arms 51 on eccentric pins 52 engaging between the bearings 10 and links 55, the rear ends of which engage pins 56 adjustable by screws 57. Springs 53 move the cylinder in opposition to the toggle 52, 55.
Patent GB-1281632-A (GB)
Title: Depth indicator
IPC: G01S15/14
Filed: 1970-02-09
Abstract: 1281632 Echo-sounding EASTERN CO 9 Feb 1970 [27 Feb 1969] 6112/70 Heading H4D [Also in Division G4] In an echo-sounder system for measuring water depth and operating in repetitive sounding cycles defined by respective start pulses, clock pulses with a repetition frequency correlated to the speed of sound in water are fed to a multidecade counter through a counter gate which is opened on transmission of a sound pulse and closed on reception of a water-bottom echo, the counter drives a luminous numerical display, the counter is reset each time a sound pulse is transmitted, and the sound pulse transmission occurs on coincidence of a start pulse and a clock pulse. In the Fig 2 embodiment, separate transmit and receive transducers 60, 62 are used to avoid premature stopping of the counter by ringing of the transducer on transmission. On coincidence of a start pulse from generator 32 and a clock pulse from generator 42, gate 56 output triggers the transmission. At the same time, counter stages 46, 48, 50 are reset by an output from JK flip-flop 40 and counter gate 44 is opened by a " go " output from JK flip-flop 38. On receipt of the bottom echo, amplifier 64 output removes the " go " signal from JK flip-flop 38, thus closing gate 44 and stopping the counting. The count is decoded at 51 from binary-codeddecimal form to, e.g. a seven-segment coded form for driving seven-segment numerical display tubes of the incandescent type in a main display 14, 16, 18 and one or more remote slave displays. The counter output may also be fed to a printer. Clock pulse generator 42 frequency can be set to give a display in fathoms or feet. Gates 67 may be used to inhibit the display while counting is proceeding. Alarm buzzer 86 operates if the indicated depth is less than a pre-selected value. To avoid premature stopping of the count by transmission breakthrough and water turbulence near the echo sounder transducers, amplifier 64 is blanked during and and shortly after transmission. If the counter reaches its maximum count without being stopped by an echo, it produces an output pulse which can be used for automatically re-triggering the sound transmission and simultaneously stepping-up the amplifier 64 gain. If the counter is still not stopped by an echo, the transmission is re-triggered again and the gain is stepped up further. Three re-triggerings can occur before counter 36 resets the gain to its original value; in any event counter 36 is reset by the next start pulse from generator 32. Circuit details are given of oscillator 42 (Fig. 6, not shown), amplifier 64 and its gain control and blanking circuits (Figs. 7, 8, 12, not shown), display drivers 52 (Fig. 5, not shown) and the depth alarm 86 (Fig. 9, not shown).
Patent GB-235296-A (GB)
Title: Improvements in inductance coils and in the method of producing the same
IPC: H01F17/02
Filed: 1924-03-11
Abstract: 235,296. Snowball, J. G. March 11, 1924. Inductances.-An inductance coil, variometer, or vario-coup'er has its edges bound together with cotton, twine, &c., in order to avoid the use of wax &c. for stiffening the coil. Fig. 2 shows a coil wound on a cardboard or like sleeve d which is slipped over a central boss on a former. The boss projects from a base, from which also projects a concentric row of pins. The coil is then wound so that each turn is substantially in the form of a triangle passing round two pins at two of its corners, the sides of the triangle being substantially tangential to the sleeve d, while the third corner of the triangle is in close proximity to the sleeve. The winding passes over pins at the points 1, 17, 18, 34, 35, 6, 7, 23, 24, 40 and so on. Owing to the number of crossing points at the inner periphery of the coil, a triangular cross section is produced. The corners e are bound with cotton, twine, &c. More than two pins may be passed over at a time. A hemispherical coil may be made by employing a dome-shaped former f, Fig. 4, having at its top a cylindrical projection f<1> and a number of radial projecting pins g, the method of winding being similar to that shown in Fig. 2. These hemispherical coils may be connected together in pairs to form the rotor and stator of a variometer or vario-coupler.
Patent GB-859379-A (GB)
Title: Improvements in or relating to the production of phenthiazine derivatives
Inventor: TOLDY LAJOS
Filed: 1957-02-25
Abstract: Phenthiazine derivatives of the formula:  <FORM:0859379/IV(b)/1> wherein A represents hydrogen, halogen or an alkyl alkoxy or aralkyl group, B represents hydrogen or halogen, X represents a straight or branched aliphatic chain, and R1 and R2 which may be the same or different represent hydrogen or an alkyl, aralkyl or beta-hydroxyethyl group, or together with the adjacent nitrogen atom form a 6-membered heterocyclic ring (e.g. piperidine and morpholine), are prepared by reacting a compound of the formula: <FORM:0859379/IV(b)/2> wherein Z represents an alkyl group, with an amine of the formula HN R1 R2.  Z is preferably a methyl group and the reaction is preferably carried out in the presence of an organic solvent and an acid binding agent.  The products may be isolated as hydrochlorides.  Phenthiazine starting materials of the formula: <FORM:0859379/IV(b)/3> are prepared by reacting carbinols of the formula: <FORM:0859379/IV(b)/4> with a reactive derivative of an alkyl sulphonic acid, e.g. methane sulphonyl chloride. 3-Chloro-10-(31-hydroxypropyl)-phenthiazine is prepared by lithium aluminium hydride reduction of 3-chlorophenthiazine-10-propionic acid or the corresponding ethyl ester.  3-Chlorophenthiazine-10-propionic acid ethyl ester is prepared by reacting 3-chlorophenthiazine with ethyl b -bromopropionate.  3-Chlorophenthiazine-10-propionic acid is prepared by reacting 3-chlorophenthiazine with acrylonitrile, followed by saponification of the resulting nitrile with alcoholic sodium hydroxide.  Specification 741,618 is referred to.  Reference has been directed by the Comptroller to Specifications 716,206, 716,207, 716,227, 716,230, 724,217, 731,016, 731,966, 743,932, 745,069, 780,193, 789,703, 789,811 and 797,172.
Patent GB-252801-A (GB)
Title: Improvements in and relating to naval fire control
IPC: F41G5/20
Filed: 1925-03-07
Abstract: 252,801. Isherwood, H. March 7, 1925. Sights and methods of sighting. -Apparatus for' controlling the adjustment of naval gun sights in accordance with the changing range, especially intended for expeditious use against torpedo attack, comprises a telescope in the field of which is an adjustable vector arm and an adjustable speed scale adapted to be set in .accordance with the course and speed of the target, and linkage whereby these settings adjust a variable-speed drive controlling a constant-speed mechanism governing the rate of adjustment of the sight. As shown diagrammatically, the vector arm 7 in the field 4 of the telescope is set by a knob 9 and the speed scale is set by a knob 10. These settings also effect the setting of an arm 21 and of a slider 23 thereon in accordance, respectively, with the course and speed of the target. A second arm 24 is set for the course of own ship by mechanism connected with the training wheel 1 of the gun, and a slider 26 is set for the speed of own ship by a knob 27. The variable-speed drive, between the sight-setting wheel 2 and a shaft provided with a constant-speed indicator such as a centre-seconds watch mounted on a rotary carrier 35, comprises a disc 33 and a wheel 32 keyed to a shaft 40 and capable of being displaced along the shaft by a forked slide 39. The position of this wheel is controlled by the two sliders 23, 26, which engage slotted bars 30, 31 mounted to slide in a direction at right-angles to the slots, so that the bars are displaced by amounts proportional to the rate of change of range due to the target and own ship, respectively. The bars carry racks 36, 37 engaging a pinion 38 connected to the forked slide 39 so that the wheel 32 is displaced an amount proportional to the algebraic sum of the displacements of the two slotted bars, i.e. proportional to the rate of change of range. If now the sight-setting wheel 2 is rotated to keep the hand of the watch in the carrier 35 stationary, the sight will be adjusted at the required rate. Spotting corrections may be applied by imparting a secondary rotation to the carrier 35 by a hand-wheel 43.