baber/WOPTO huggingface dataset:
Patent GB-240419-A (GB)
IPC: B63B45/08
Filed: 1925-08-17
Abstract: 240,419. Sperry Gyroscope Co., (Assignees of Mills, C. B.). Sept. 25, 1924, [Convention date]. Fluid supply for sirens, whistles, and horns.- Ships' whistles &c. of the type blown by compressed air are arranged to emit a fume or cloud so as to identify visibly the particular whistle sounding, in the same way that the puff of steam identifies a steam whistle. A lamp may be used at night to illuminate the fume or cloud. In the apparatus shown, when the whistle lanyard 13 is pulled, a valve 11 admits compressed air to a pipe 30 connected to a nozzle 32 which, by ejector action, draws stannic chloride from a tank 35 and blows it up a tube 23, thus producing a fume or cloud at the top of the ship's funnel F. An automatic valve cuts off the compressed air supply if the whistle blast be prolonged beyond a certain limit. Access of air to the stannic chloride is prevented by a flap 40 which is raised by the blast from the nozzle 32 and falls by gravity. A blast of air from a pipe 22 scavenges the pipe 23. In the sound-producing apparatus described in connection with the invention, compressed air from a pipe 14, Fig. 6, vibrates a diaphragm 15 by escaping between it and a seating 16. The Specification as open to inspection under Sect. 91 (3) (a) describes also the use at night of a lamp instead of the production of the fume or cloud or to illuminate steam from a steam whistle. This subject-matter does not appear in the Specification as accepted.
Patent GB-1458279-A (GB)
Title: Coke quenching car alignment indicating system
IPC: C10B39/14
Filed: 1974-05-09
Abstract: 1458279 Coke quenching car KOPPERS CO Inc 9 May 1974 [24 July 1973] 20649/74 Heading F4B A coke quenching car 11 has partitions 25, 27 and 29 that divide the interior into compartments 1, 2, 3 and 4. The partition 25 has a triangular opening 35, the partition 27 a circular opening 37, the partition 29 a hexagonal opening 39 and the end wall 33 has a rectangular opening 41. The openings are disposed along a line of sight 43 of an operator as he looks through the window 45. As the quenching car receives hot incandescent coke from the hood 17, observations along the line of sight 43 tell the operator when compartments are full and the control 15 can be operated to move the car accordingly.
Patent GB-653974-A (GB)
Title: A new or improved earthing clamp
IPC: H01R4/64
Filed: 1948-08-05
Abstract: 653,974. Electric couplings. COLEMAN, C. C. Aug. 5, 1948, No. 20657. [Class 38 (i)] An earthing clamp comprises two identically, semi-cylindrically shaped plates 10, 11, each having two backwardly-bent claws 14, 15 and a flat portion 16 on the opposite sides of the semi-cylindrical portion 12. A nut and a bolt, which passes through holes 17 in the portions 16, secure the plates on a support 13, and the claws about an earthing lead 20.
Patent GB-381974-A (GB)
Title: Tractor transmission and steering mechanism
IPC: B62D11/08
Filed: 1931-07-20
Abstract: 381,974. Tractor driving and steering gear. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Cleveland Tractor Co. ; Cleveland, Ohio, U.S.A.) July 20, 1931, No. 20695. [Class 79 (ii).] Comprises a pair of final drive members, such as endless-track sprockets 50 or road wheels, adapted normally to be driven by a drive member 12 through differential gearing 21 and two driven mechanisms, such as epicyclic reduction gearing 54, each associated with a final drive member, the differential gear having means wherebv the driven mechanisms and final drive members may be driven at different speeds, and means being provided to prevent rotation of either or both of the driven mechanisms without disconnection of the power. In the construction shown the driving shaft 12 drives shafts 14 through differential gear 21, each shaft 14 being permanently coupled by a brake drum 38 to a stub shaft 33 driving the corresponding track sprocket 50 through spur gearing 34, 47 and epicyclic reduction gearing 54. The sun pinion 56 of the epicyclic gear is fixed to the gear wheel 47 loose on the sprocket shaft 48, the planet carrier 51 is fixed on the shaft 48, and the toothed annulus 44 is fixed to the gear casing 30. The shafts 22 of the planet pinions 21 of the differential gear carry pinions 24 meshing with pinions 25 which are loose on the differential housing sleeves 19 and carry brake drums 26. Brakes are applied to the four drums 26, 38 by means of independent hand-levers 29, 42. Normally, the tractor is driven straight ahead through the differential gear and epicyclic reduction gearing. Steering may be effected in either of two ways : (1) If one of the drums 26 and pinions 25 is held by its brake the corresponding pinions 24 will roll round the pinion 25 and cause the intermeshing differential pinion shafts 21 to rotate in opposite directions, thus imparting differential rotation to the shafts 14 and therefore to the track sprockets, and causing the tractor to be steered in a curve determined by the ratio of the gearing 24, 25. (2) If one of the drums 38 is held by its brake the track sprocket and track on that side are also held stationary, the tractor being steered in a curve of smaller radius than that effected by the application of one of the brakes 26. Braking of the tractor is effected by simultaneously operating either both brake-levers 29 or both levers 42. The gearing is enclosed in a main housing 10 having a cover-plate 11 and provided with side extensions 30 to which coverplates 45 are bolted.
Patent GB-1103998-A (GB)
Title: Improvements relating to leaf-spring hangers
IPC: B60G11/12
Filed: 1966-05-10
Abstract: 1,103,998. Springs. DAIMLER-BENZ A.G. 10 May, 1966 [11 May, 1965], No. 20701/66. Heading F2S. In a leaf-spring hanger arrangement wherein a shackle 3, having an eye 5 of a stack of leafsprings with a bush 9 mounted on a pin 4 keyed at 12 to it, has an eye pivotally mounted with a bush 6 to a pin 6 keyed at 12 to a shackle 1 attached to a fixed part of a vehicle, (not shown), in order to compensate for lateral play, a hard metal washer 9 is inserted between each end of each bush 6 or 7 and the adjacent arms of the shackle 1 or 3, an elastic sealing ring 10 being mounted round each washer 9. The washers 9 are preferably of hardened steel and the sealing rings 10 are preferably of rubber. Each sealing ring 10, which may have a circumferential groove in its outer periphery, may be held by corrugations, or serrations, around its associated washer 9, or it may be glued, vulcanized, or force-fitted, to the respective washer. Alternatively, each sealing ring may be secured to a separate carrier ring (12), Fig. 4, (not shown), which may be pushed or shrunk on to the corresponding washer.
Patent GB-1005740-A (GB)
Title: The manufacture of benzophenone derivatives
IPC: B01J27/10
Filed: 1964-05-20
Abstract: Benzophenone derivatives of the formula <FORM:1005740/C2/1> in which R is an optional chlorine, bromine, fluorine or iodine atom, are prepared by reacting p-nitroaniline with a benzoyl halide or halobenzoyl halide in the presence of zinc chloride. The products may be converted into benzodiazepine derivatives of the formula <FORM:1005740/C2/2> by cyclization, e.g. by reaction with a glycyl or haloacetyl derivative, and the benzodiazepine derivatives may then be alkylated.  In Example 1, p-nitroaniline and benzoyl chloride are reacted in the presence of zinc chloride at 140 DEG  C. to yield 2-amino-5-nitrobenzophenone; this compound may then be (a) heated in pyridine with glycine ethyl ester hydrochloride to yield 7 - nitro - 5 - phenyl - 2,3 - dihydro - 1H - 1,4 - benzodiazepine - 2 - one or (b) treated with bromoacetyl bromide to yield 2-bromacetamido - 5 - nitrobenzophenone, which is then converted by reaction with ammonia into 2 - aminoacetamido - 5 - nitrobenzophenone; this compound yields 7-nitro-5-phenyl-2,3-dihydro - 1H - 1,4 - benzodiazepine - 2 - one when heated or when an acqueous solution thereof is neutralized with hydrochloric acid and allowed to stand; finally, the benzodiazepine derivative is converted into 1-methyl-7-nitro-5-phenyl-2,3-dihydro - 1H - 1,4 - benzodiazepine - 2 - one by methylation with methyl iodide.  Examples are given also of the manufacture of 2-amino-5-nitro - 21 - chlorobenzophenone and 2 - amino - 5 - nitro - 21 - fluorobenzophenone.  Specification 972,968 is referred to.
Patent GB-787864-A (GB)
Title: A set of matched golf club shafts
IPC: A63B53/00
Filed: 1955-07-18
Abstract: 787,864. Golf clubs. SPALDING & BROS., Ltd., A. G. July 18, 1955 [Aug. 10, 1954], No. 20780/55. Drawings' to Specification. Class 132(2) A matched set of shafts for golf clubs (both wood and iron) are of constant weight and the stiffness of a shaft varies inversely according to a' logarithmic law with the shaft length.
Patent GB-1064806-A (GB)
Title: Recording instrument
Inventor: THAYER NORMAN EARL
IPC: G01D9/10
Filed: 1965-05-18
Abstract: 1,064,806. Pens for recording instruments. ESTERLINE ANGUS INSTRUMENT CO. Inc. May 18, 1965, No. 20965/65. Heading B6P. [Also in Division G1] In recording apparatus (see Division G1) the pen arm 26 has a horizontal knife edge 89 which rests in notches in a fork secured to the pulley 71. A flexible tube 92 supplies ink to the pen from an elongated reservoir 95 resting in an ink well 96. A handle 106 is pivoted on flanges 103 of the reservoir 95 and when the handle 106 is depressed a heel portion 107 rocks on a plate 108 to lift the reservoir out of the well, so that the pen and reservoir can be readily removed as a unit.
Patent GB-460520-A (GB)
Title: Improvements in or relating to devices for recording on or reproducing from sound films
IPC: G11B15/34
Filed: 1935-07-24
Abstract: 460,520. Driving sound-films at uniform speed. LUSCHNATH, E., and GLUCK, V. July 24, 1935, No. 21035. [Class 40 (ii)] An arrangement for driving a sound film at a uniform speed past the optical exposure point 7, where recording or reproducing is effected, comprises a sprocket roller 3 fixed on the shaft 2 of a low-speed motor, one or more freely rotatable rollers 9 for pressing the film on to the sprocket 3, to enable it to feed the film past the point 7, and other similar rollers 8, 10, for pressing the film on to the sprocket before and after it passes the point 7, the film forming free loops 4 between the rollers 8, 9 and between the rollers 9, 10. The Provisional Specification describes and shows a modified construction in which the film leaves the sprocket roller after forming the first loop, passes over a pad where it is supported at the exposure point, and is then pressed against the sprocket before forming the second loop.
Patent GB-650438-A (GB)
Title: Improvements relating to the refining of glycerine
IPC: C11D19/00
Filed: 1948-08-10
Abstract: Glycerine which has been obtained by the transesterification of fatty material having an acid value of at least 1 by a low molecular weight alcohol first under alkaline and then under acid conditions, is purified by neutralizing the acidic glycerine with an oxide or hydroxide of an alkaline earth metal followed by heating with an ammonium halide and removal of insoluble material. The acidic glycerine may be neutralized either before or after separation from the acidic esterification mass.  The halide-treated glycerine may be extracted with methanol, ethanol, propanol, or butanol, or with acetone, or it may be dissolved in one of these alcohols and acetone added until a precipitate just begins to form, heated, insoluble matter removed, and the solvent distilled off.  The glycerine may finally be distilled under reduced pressure or co-distilled with a mineral oil of similar boiling point.  The process is normally conducted under relatively water-free conditions, an oxide such as barium oxide being therefore preferable to an hydroxide as a neutralizing agent.  If very acid starting materials have to be dealt with, which would give rise to the presence of considerable amounts of water, the transesterification reaction is carried out so that water of reaction is continuously removed by refluxing or mechanical separation.  According to examples, peanut and hydrogenated fish oils are treated with methanol in presence first of caustic soda and then of sulphuric acid, barium oxide or calcium hydroxide added, and the mixture then heated with ammonium chloride with or without methanol to reduce the viscosity.  The alcohol is removed by distillation and the glycerine filtered and vacuum distilled. Specifications 579,767 and 647,174 are referred to.
Patent GB-158493-A (GB)
Title: Improvements in or connected with apparatus for use in manufacturing concrete and like blocks, pipes and the like
IPC: B28B1/20
Filed: 1919-07-29
Abstract: 158,493. Cannon, P. C. July 29, 1919. Centrifugal machines.-The moulds for moulding concrete and like blocks, pipes, &c. are mounted in clamps j carried on the ends of rotary spindles k the other ends of which are provided with pinions l engaging with a stationary toothed wheel m. The spindles k are carried by a disc or wheel i mounted on a shaft g provided with fast and loose pulleys. As the disc i rotates, the clamps and moulds are carried round with it, and also rotated on their own axes. In a modification, the disc i may be stationary and the wheel m rotated.
Patent GB-531381-A (GB)
Title: Improvements in or relating to the treatment of iron-silicon alloys
IPC: C22C38/02
Filed: 1939-07-20
Abstract: 531,381. Altering magnetic properties. FIDES GES, FUR DIE VERWALTUNG UND VERWERTUNG VON GEWERBLICHEN SCHUTZRECHTEN. July 20, 1939, No. 21138. Convention date, July 20, 1938. [Class 83 (iv)] Cold rolling.-Iron-silicon alloys containing from to 2 to 6 per cent. of silicon have their magnetic properties improved by first hot rolling and then cold rolling in at least three stages with intermediate annealings. In the treatment of an alloy having 3.5 per cent. silicon a strip is hot rolled to 3.5mm. and cold rolled to 1.5. Annealing in hydrogen for 15 minutes at 1000‹C. follows and then cold rolling to 0.7, annealing as before, cold rolling to 0.35, annealing as before, and cold rolling to 0.17. Finally the strip is wound to form a core and annealed in that form in hydrogen for four hours at 1200‹C.
Patent GB-581961-A (GB)
Title: Submarine escape apparatus
IPC: B63G8/40
Filed: 1939-07-21
Abstract: 581,961. Submarines. MOULLIN, C. H. July 21, 1939, No. 21219. [Class 113 (ii)] An escape tube 2 can be attached to a submarine by the sleeve 9 carried by the submarine, and threaded on both its outer and inner surfaces to engage the fixed sleeve 8 and the tube end. Blanking plates 7 and 10 close the hull aperture and the tube end respectively. The lower end sections of the tube may be flexible.
Patent GB-224962-A (GB)
Title: Improvements in or relating to submarine mines
IPC: F42B22/10
Filed: 1923-08-22
Abstract: 224,962. Vickers, Ltd., and Elia, G. E. Aug. 22, 1923. Mines, marine. - T h e anchor or sinker C of an auto. matically moored mine is arranged to have its centre of gravity I below the centre of pressure H and is provided with buoyant fins or the like F at its upper end to ensure that the sinker shall fall in a vertical position without oscillations.
Patent GB-149279-A (GB)
Title: Improvements in and relating to automatic pistols
IPC: F41A17/74
Filed: 1920-07-14
Abstract: 149,279. Walther, F. July 14, 1920. Breech actions, sliding breech-block; trigger guards.-The hammer pivot of automatic pistols is adapted to form a safety lock for the sear. In the construction shown in Figs. 2 and 3, the pivot 8 of the hammer 1 is adapted to be rotated by a lever 5, and is formed with a flat part 11. The pivot 8 passes through an aperture 9, 10 in a plate 7 turning with the sear, the aperture comprising a round part 9 and a narrower part 10. When the pivot 8 is in the position shown in Fig. 2, the sear is free to move, but when the pivot is turned to the position shown in Fig. 3, the sear is locked with the hammer cocked. The sear can be locked only when the hammer is cocked, owing to the fact that the hammer is formed with a cam-surface which presses the sear and plate 7 forwards when the hammer is down, the pivot 8 then being in the narrow part 10 of the opening and prevented from rotation. The Specification as open to inspection under Sect. 91 (3) (a) comprises also constructions of the breech-block, slide, and trigger-guard. The breech-block 31, Figs. 4 and 5 (Cancelled), fits in a longitudinal groove in the breech-slide 21, and is held from longitudinal movement by a vertical stud 32. The breech-block is locked in position by the cartridge extractor 38, which forms a spring catch entering a lateral recess 37 in the breech-slide. The rear end 41, Fig. 6 (Cancelled), of the extractor projects into a groove 42 in the firing-pin 34 and limits its movement. The trigger-guard 29, Fig. 7 (Cancelled), is formed with a projection 51, which forms a stop to limit the rearward movement of the breech-slide 21. The trigger-guard is secured at the front by a spring bolt 48, and at the rear is pivoted on a stud 44, the pivot hole 45 terminating in a slot 46 which allows removal of the guard. The stop 51 is formed with a projecting ledge 57, which engages over the part 52 of the breech-slide for the purpose of preventing the blow of the breech-slide on the stop from disengaging the spring bolt 48. This subject-matter does not appear in the Specification as accepted.
Patent GB-500256-A (GB)
Title: Improvements in toe and heel plates, as used on shoes for dancing, generally called taps
IPC: A43B5/12
Filed: 1937-08-03
Abstract: 500,256. Dancing-shoes. VOY, H. C. DE. Aug. 3, 1937, No. 21343. [Class 17 (ii)] A tap-dancing plate 1 for attachment to a shoe toe or heel has attached thereto, e.g. in a recess therein, as shown, a washer-like member 2 which is secured in a manner to permit its rotation and vertical movement without substantial horizontal movement by a second smaller and thicker washer-like member 3, which is secured to the plate 1 by a rivet 4.
Patent GB-213479-A (GB)
Abstract: 213,479. Curnow, C. H., Pope, R., and Pope, R. L. June 28, 1923. Tyres, elastic, and tyrecovers, tools for removing and replacing. - A device for contracting split rims of motor vehicle wheels comprises clamping jaws 1 which engage the rim on opposite sides of the division and the jaws s consist of a hooked part and a screm 8 and they can be moved relatively by a rotatable sleeve 2 into the ends of which are threaded right and left handed screws 3. The jaws are pivoted to lugs 4. In a modification, the jaws comprise hooked parts adjustable on a transverse screw threaded through the enlarged head of each screw 3. Fibre blocks are provided on the opposing faces of the jaws.
Patent GB-1413898-A (GB)
Title: Disazo dyestuffs
IPC: C09B31/153
Filed: 1973-05-04
Abstract: 1413898 Disazo dyestuffs IMPERIAL CHEMICAL INDUSTRIES Ltd 14 March 1974 [4 May 1973] 21352/73 Addition to 1377613 Heading C4P Novel dyes, free from COOH or SO 3 H groups of formula (where Y is H or optionally substituted alkyl or aryl; T is C 1-4  alkyl or aryl; R and R<SP>1</SP> are optionally substituted alkyl groups; and rings A and B may be further substituted with non- ionogenic substituents or have a further ring fused thereon) and salts of the dyes are prepared from the corresponding disazo dyes in which the group -CH 2 N(R)(R<SP>1</SP>) in the 3-position of the pyridine ring is replaced by a -CH 2  hal group, where hal is Cl or Br, by reacting with an amine NH(R)(R<SP>1</SP>). Alternatively the dyes may be prepared from the corresponding compounds in which the 3-position in the pyridine ring is unsubstituted, by reacting with formaldehyde and an amine NH(R)(R<SP>1</SP>). The dyes are used for colouring polymeric materials, particularly acrylonitrile, dicyanoethylene and polyester polymers and copolymers, polyamides and cellulose esters.
Patent GB-134113-A (GB)
Title: Improvements in the Generation of Producer-gas.
Inventor: BAMBER HERBERT WILLIAM
IPC: C10J3/80
Filed: 1918-12-23
Abstract: 134,113. Bamber, H. W., and Abrahams, E. Goldsmid-. Dec. 23, 1918. Thermometers and pyrometers.-In apparatus for automatically controlling the water supply to a gas-producer according to the temperature of the producer, a needle valve 33 controlling the water supply is pivoted to an arm 34 on a sliding rod 28 pivoted to a bell-crank lever 27, one arm 25 of which is engaged by a sliding rod 24 actuated by the bulging of a horizontal arc of the fire-box 11 between two of three set-screws 23 passing through a rigid ring 22. An index-arm 35 on the rod 28 moves over a temperature-indicating scale 36.
Patent GB-1022892-A (GB)
Title: Control knob and actuator member assembly
IPC: H01H3/06
Filed: 1963-05-30
Abstract: 1,022,892. Hand tool handles. GENERAL MOTORS CORPORATION. May 30, 1963 [June 18, 1962], No. 21657/63. Heading B4K. In order to fit an operating knob, or handle, on to a metal tab or lever, the tab is of tapering width and is provided with barbs which wedge against the wall of a correspondingly tapered recess in the knob. The recess may be stepped, if desired, and notches may be cut in the tab, behind the barbs to allow these to deform more readily if there is less than normal clearance in the recess.
Patent GB-816857-A (GB)
Title: Resolution of racemic aminoalcohols
Inventor: FABIAN FRITZ
Filed: 1954-07-26
Abstract: A process for the resolution of diastereoisomeric salts of optically-active aminoalcohols comprises adding an alkaline material to a solution of the salts to effect fractional precipitation of the free base, one of the amino-alcohols being more readily precipitated than its stereo isomer and being present in the initial solution in a greater amount than that of the said stereo isomer, the amount of base precipitated being not substantially greater than the amount of said one amino alcohol in the initial solution.  The fractional precipitation may be repeated by taking up the precipitated base in a suitable acid, such as d-tartaric or oxalic and again adding the alkaline material.  The precipitation may be effected by the use of a mild base such as ammonia.  The initial enrichment of the mixture in the desired optically active component can be effected by fractional crystallization or by adding to the racemic mixture a salt of the separated base from a preceding resolution.  Examples describe the resolution of racemic adrenaline and of racemic noradrenaline to produce the laevo bases.  After the first precipitation, either a second precipitation process or a fractional crystallization of the tartrate is carried out.  The mother liquors contain predominantly the dextro base or a salt thereof which is racemized, and the racemate is reintroduced into the resolution process.