baber/WOPTO huggingface dataset:
Patent GB-238534-A (GB)
Title: Improvements in electrical means for synchronising motors
IPC: H04L7/00
Filed: 1925-07-29
Abstract: 238,534. Ateliers J. Carpentier. Aug. 12, 1924, [Convention date]. Speed-maintaining systems.-In order that the mean speed of rotation of a shaft F<2> driven by an electric motor M may be equal or proportional to the speed of a master shaft F<1>, a rheostat R is set so that the motor tends to run slightly faster than the required speed and is periodically corrected by the momentary closure of a shunt circuit through two contact devices which are operated by cams in similar phase relation to the two shafts, thus producing an electric braking action. The cam-operated contact for the master shaft may be replaced by rotary brush and slip-ring contacts. In a further modification, the shunt circuit is taken to an intermediate point of the motor armature winding by means of a slip-ring. The closure of the shunt circuit may bring in a battery in opposition to the main supply. The invention as described may serve for obtaining synchronism in Baudot telÚgraphie systems.
Patent GB-265461-A (GB)
Title: Improvements in or relating to sizing apparatus for coke and the like
IPC: B07B1/15
Filed: 1926-08-04
Abstract: 265,461. Molin, A. G. Feb. 3, 1926, [Convention date]. Fixed sieves.-In apparatus for grading coke &c. of the kind comprising a series of parallel shafts 3 rotating in the same direction and carrying discs 4 arranged so that the discs on adjacent shafts overlap, the peripheries of the discs are formed to a slightly sinuous shape. The discs 4 have hubs 5 and the arrangement is such that the openings represented by the periphery of one disc and the juxtaposed hubs of the discs on the adjacent shaft are approximately square. The discs may be dished on one or both sides, and the sinuous formation may extend only over part of the periphery.
Patent GB-794498-A (GB)
Title: Improvements in or relating to hydraulic extrusion apparatus
Inventor: ROWLES REGINALD VICTOR
IPC: B29C48/06
Filed: 1954-07-01
Abstract: 794,498. Extrusion-machines. FIELDING & PLATT, Ltd., and HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T. Nov. 22, 1955 [July 1, 1954], No. 19360/54. Class 87(2). [Also in Group XXII] A method of extruding metals or synthetic resins to form tubes, rods or cable sheaths comprises forcing the extrudable material through the die by at least two pairs of opposed hydraulic plungers 6, the individual rams of each pair being operated simultaneously and the pairs being operated in succession to produce continuity of flow through the die. The press used for sheathing cables comprises four hydraulic rams 2-5 mounted on a yoke 1 with the horizontal rams 2, 4 working alternately with the vertical rams 3, 5. These rams are preferably controlled as described and claimed in Specifications 695,012 or 770,871 to provide uniformity of flow. The container bore 7 in the extrusion head 8, Fig. 2, communicates through conical passages 20 with a common mixing chamber 10 from which a plurality of passages 14 lead to the extrusion gap. The conical passages 20 tend to resist back-flow of extrusion material into the container bores when the corresponding rams are withdrawn for re-charging. To further resist back-flow a substantial residue of billet material is left in the containers after extrusion therefrom and/or the container bores are of tapering cross-section as described and claimed in Specification 770,872.
Patent GB-691452-A (GB)
Title: Improvements in and relating to the treatment of mica and the production of sheets therefrom
IPC: C04B14/20
Filed: 1951-08-16
Abstract: Mica sheet material is produced by firing mica of the muscovite type to abstract 1.4 to 2.4 per cent. of its weight of its water of constitution, cooling it, adding a quantity of water, grinding the material into small flakes and preparing sheets by removing water by paper making equipment, e.g. a screen, a felt base and a drying cylinder.  The mica is preferably heated to 800-850 DEG C. until 1.8 per cent. of the water is removed, it is then slurried in a mixture of 3 per cent. mica and 97 per cent. water and after sheeting dried at 100-150 DEG C.  In grinding the mica is preferably reduced to a maximum dimension of 0.01 to 1.0 millemetre and a thickness 1/10 to 1/100 of this dimension. Specifications 591,388 and 661,876 are referred to.
Patent GB-299091-A (GB)
Title: Improvements in spring seating surfaces, mattresses and the like
IPC: A47C27/04
Filed: 1927-07-22
Abstract: 299,091. Marshall, J. E. L. July 22, 1927. Mattresses; cushions.-In mattresses and like spring upholstery wherein rows of springs are inserted in separate compartments F in a casing G, each row supports a separate section of padding H inserted in the compartment prior to or at the same time as the springs. If desired padded sections may be employed above and below the springs to form a double sided mattress.
Patent GB-530915-A (GB)
Title: Improvements in electric discharge lamps containing luminescent materials
IPC: C09K11/69
Filed: 1939-07-05
Abstract: 530,915. Luminescent materials. GENERAL ELECTRIC CO., Ltd. (Patent-Treuhand-Ges. fur Elektrische Gluhlampen). July 5. 1939, No. 19635. [Class 39 (i)] Luminescent material for use in mercury vapour discharge lamps consists of or comprises a luminescent tungstate containing vanadium, in proportions of less than 1 per cent. Magnesium tungstate may be prepared from sodium tungstate and magnesium chloride or from magnesium and tungstic oxides ; the prepared tungstate is mixed with a solution of vanadyl chloride and the mixture is dried, heated and ground &c.
Patent GB-849206-A (GB)
Title: Improvements relating to attachments for portable electric hand tools
Inventor: JACKSON JOHN ALEXANDER
IPC: B28C5/18
Filed: 1958-06-19
Abstract: 849,206. Mixing appliances. WOLF ELECTRIC TOOLS Ltd. June 15, 1959 [June 19, 1958], No. 19689/58. Class 86 An attachment to enable an electric hand drill to be used for mixing small quantities' of cement and like materials comprises a cradle having side members 1, bottom and top cross members 2, 3, see Fig. 1 (not shown), wheels 5 an adjustable support 9 and barrow handles 8. A detachable mixing drum 29 having fixed internal paddles 37 rests on four rubber friction sleeves 14 fixed on two rollers 10 (not shown), and 11. The roller 11 is rotated through gears 20, 21 by a shaft 22 actuated by a spigot member 23 held in the chuck 24 of an electric hand drill 16, which is secured as by a wing bolt 17 to a bracket 18 mounted on the lower cross-member 2. The centre of the drum bottom rests on an electrically insulated end stop 30 consisting of a ball 32 rotatable in a socket 33 secured through an insulating sleeve 34 and insulating washers 35 to a semicircular steel plate 31 also mounted on the lower cross-member 2. The wheels 5 may be removed and the height of the support 9 correspondingly reduced by passing the belts 25, 26 through the alternative holes 27, 28.
Patent GB-698294-A (GB)
Title: Improvements in or relating to devices for protecting various portions of the anatomy
IPC: A61F13/10
Filed: 1951-08-22
Abstract: 698,294. Surgical splints. KELLY, V. L. Aug. 22, 1951, No. 19755/51. Class 81 (ii). A protecting splint consists of a pair of parallel legs 14 connected at one end and having transversely weakened parts 16 for the removal of a portion of each leg 14, cradles-18 and guards 22 being slidably movable on the legs 14, the guards 22 being larger than the cradles 18 so that they are spaced farther from the injured member than the cradles 18. The cradles 18 and guards 22 are provided with bosses 20, 24 so that they may be placed on the legs 14 as desired. The device may be secured on the injured limb by adhesive tape bound over the cradles 18. A bandage may be disposed either under or over the device. The splint is made from metal, synthetic resin, wood or fibre.
Patent GB-756624-A (GB)
Title: Improvements in or relating to acid monoazo dyestuffs
IPC: C09B29/30
Filed: 1954-07-06
Abstract: The invention comprises dyestuffs of formula:-<FORM:0756624/IV(c)/1> where R1 is a phenyl radicle which may contain one or more halogen atoms, alkyl, cycloalkyl, aralkyl, aryl and/or alkoxy groups, or is a 5, 6, 7, 8, - tetrahydronaphthyl (1 or 2) radicle, and R2 is a phenyl radicle which may contain one or more halogen atoms, alkyl or alkoxy groups, or is a 5, 6, 7, 8 - tetrahydronaphthyl (1 or 2) radicle. They are made by diazotizing an appropriate 1 - amino - 4 - phenoxybenzene - 2 - sulphonic acid and coupling in acid medium with the necessary 2 - arylamino - 8 - naphthol - 6 - sulphonic acid the 2 - (21, 41, 61 - trimethyl) - phenylamino derivative being preferred. The dyestuffs dye wool, silk and artificial polyamide, e.g. nylon, fibres from a neutral to weakly acid bath in bluish red shades. Examples and a Table are provided illustrating the preparation of the dyestuffs and their use in conventional dyeing processes.  The diazo compounds used are derived from the following amines:- 1 - amino - 4 - phenoxy - benzene - 2 - sulphonic acid and its 4 - (21, 41 - dichloro)-, -(41 - isooctyl)-, -(21, 41, 51 - trichloro)-, -(41 - phenyl)-, -(41 - benzyl)-, -(41 - tert. amyl)-, -(41 - cyclohexyl)-, -(21, 41 - dimethyl)-, -(21 - methoxy - 51 - methyl)-, -(21, 51 - diethoxy)- and -(31 - fluoro)-phenoxy derivatives and 1, -amino - 4 - (51, 61, 71, 81 - tetrahydro) - naphthyl (21) - oxybenzene - 2 - sulphonic acid and coupling components used are 2 - (21, 41, 61 - trimethyl)-, -(41 - fluoro, chloro, methyl and methoxy)-, -(31 - chloro)-, -(21, 41-, 21, 51- and 21, 61 - dimethyl)-, -(21, 51 - diethoxy)- and -(21, 31, 41, 61 - tetramethyl) - phenylamino and 2 - (51, 61, 71, 81 - tetrahydro) - naphthyl (11) and (21) - amino - 8 - naphthol - 6 - sulphonic acids.  Specifications 14820/09 and 369/10 [both in Class 2(iii)] are referred to.
Patent GB-143763-A (GB)
Title: An improved method of raising sunken ships
IPC: B63C7/00
Filed: 1919-08-13
Abstract: 143,763. Moir, Sir E. W. Aug. 13, 1919. Caissons; sunken and stranded ships, raising and moving.-A method of salving a partly submerged wreck a consists of surrounding the vessel with a wall b of sheet-metal piling and filling in the space between the piling and the side of the ship with rubble, sand-bags, or other filling c. The piling is arranged along an undulating line as shown in plan, Fig. 2, the better to withstand the stress when the ship is pumped out. Repairs are carried out from the interior of the ship, and part of the piling is then removed and the ship floated, dredging being resorted to if necessary.
Patent GB-147947-A (GB)
Title: Receiving device for submarine sound signals with a receiving member abutting on the water and a detecting device
IPC: G01S1/72
Filed: 1920-07-09
Abstract: 147,947. Signal Ges. Oct. 26, 1914, [Convention date]. Subaqueous audible signals.-Between the receiver, such as a diaphragm 1, Fig. 1, and the electro-magnetic or other detector 4, 5, an oscillatory amplifying member 3 is interposed. This may be a lever, rigid with reference to the frequency of the sound waves, and reduced in crosssection at a bending-point instead of being pivoted. In the arrangement shown in Fig. 2, the amplifying-element consists of a spring bow 12, which is actuated through struts 11 by diaphragms 10 and operates on a microphone 14 mounted between its free extremities. The bend of the bow 12 is reduced in cross-section. The mass and elastic force of the amplifying-member should be small compared with those of the diaphragm. The amplifying-member or the diaphragm or both may be tuned to the frequency of the sound waves. More than one amplifying-member may be used, and the detecting-devices may be of a mechanical or optical kind. Reference is made to attempts to use amplifying systems consisting of stretched threads.
Patent GB-307682-A (GB)
Title: Disappearing machine rests for sewing machine tables
IPC: D05B75/06
Filed: 1928-07-10
Abstract: 307,682. Fairweather, W., (Singer Manufacturing Co.). July 10, 1928. Tables combined with sewing-machines. - The aperture in a drophead sewing machine stand is closed by a flush cover comprising a number of hinged sections, one of which carries relatively movable means for supporting the free edge of the machine when raised. Three sections 7a, 7<b>, 7<c> are shown in the example, with hinges 8, 9, the section 7<a> being hinged to the table 1 at 10. The section 7<a> has recesses 11 housing spring- pressed members 19 sliding between plates 14, 15, Fig. 3. When the machine 6 is lowered and the sections are in position for closing the aperture 2, plates 20 in the sections 7b press the members 19 into the recesses 11. When the aperture is open and the machine lifted, the members 19 spring out and support the free edge of the machine, which is hinged to the table at 4.
Patent GB-968706-A (GB)
Title: Photolithographic printing plates
IPC: G03F7/06
Filed: 1961-06-02
Abstract: 968, 706. Photolithographic printing plates. GEVAERT PHOTO-PRODUCTEN N.V. June 2. 1961, No. 20072/61. Heading-G2M. A lithographic lacquer containing a reaction product of formaldehyde with a phenol or an alkyl substituted phenol is applied to a silver image formed by the diffusion transfer process to increase into receptivity of such image. A lithographic preparation may be applied before application of the lacquer. The silver image may be formed on an aluminium sheet and rubbed with wadding impregnated with an aqueous composition comprising carboxymethyl cellulose, sodium phosphate, phospheric acid, cetyl trimethyl ammoniumbromide and formaldehyde and is then rubbed with a cyclohexanone solution of a proprietary alkyl phenol resin containing also a rhodamine and may be rubbed again with the aqueous carboxymethyl cellusose solution. Specification 913, 591 is referred to.
Patent GB-821182-A (GB)
Title: Improvements in or relating to expandible rings
IPC: A44C9/02
Filed: 1957-06-26
Abstract: 821,182. Finger rings. MANNE, M. June 26, 1957 [July 9, 1956], No. 20077/57. Class 43 An expandible ring comprises alternate link sections 12, 14, pivots 24, 26 on one end of a body section 12 engage in slots 46, 48 in a connecting link section 14 and extensions 54, 56 on the section 14 are pressed down to close the ends of the slots. The link sections have a central guide bore 34, 40 through which a spring 58 is threaded. The ends of the spring are secured by a pin 60 which passes through openings in the sides of a link. The openings are closed by suitable means.
Patent GB-153959-A (GB)
Title: Improvements in or relating to motor vehicles
IPC: B62D61/08
Filed: 1919-08-15
Abstract: 153,959. Taussig, L. Aug. 15, 1919. Frame components, applying and combining; tubular and like constructions; wheel forks; axles. -A motor-vehicle frame is built up of sections secured together so as to be dismountable without the use of tools for transportation &c., the wheels. engine, &c. being dismountable or foldable to facilitate a close assemblage of the dismounted parts. The front of the main frame 15 is secured to the front axle 55 by means of forked ends 70 and pins 71. The rear driving-wheel axle-frame 24 is secured to the wheel-fork 16 or the main frame by pins 25. The stub-axles of the front steering-wheels 58 are operated by worm gearing 52 on a shaft 51 rotated bv the usual hand-wheel 63. The engine 40 has a squared driving-shaft engaging a squared recess in a. shaft 65 carrying an internally toothed gear 66 gearing with. a pinion on a shaft 35 connected by gearing to the driving-wheel 22. The front ends of the main frame may be connected to a channel-shaped cross-member 76, Fig. 4, which is secured to the axle and which carries brackets 77 supporting the steering-shaft 51.
Patent GB-320606-A (GB)
Title: Improvements in or relating to the concentration of lower aliphatic acids
IPC: C07C51/48
Filed: 1928-07-11
Abstract: 320,606. British Celanese, Ltd., and Billing, J. July 11, 1928. Acetic and like aliphatic acids are extracted from their aqueous solutions by means of solvents in two or more stages, the solvents being so chosen that in each stage the ratio of acid to water in the extract is greater than in the preceding stage. The invention is described with reference to acetic acid, the concentration being effected in two stages, the first stage yielding an acid of 50-70 per cent strength and the second a highly concentrated acid. The first stage may be effected with ether, ethyl acetate, ether containing 20-30 per cent of petroleum ether, or ether or ethyl acetate admixed with hydrocarbons or halogenated hydrocarbons such as methylene chloride or carbon tetrachloride as described in Specification 283,702; the extract is distilled, and the acid is then treated with another solvent, such as petroleum ether, benzene, a mixture of ether and petroleum ether containing 30-50 per cent petroleum ether, or chlorinated hydrocarbons such as methylene chloride, ethylidene chloride, trichlorethylene or carbon tetrachloride, alone or mixed with other solvents such as ether or ethyl acetate, and particularly in the last stage the solvent is preferably one which form an azeotropic mixture with water, so that in the subsequent distillation the water will be removed with the solvent. In the second or subsequent stages the extraction may be effected only so far as to leave appreciable quantities of acid in the treated liquor, which liquor is then returned to the first stage. The extraction may be effected by mixing and allowing to separate into layers, or by counter-current in a column or by passing the vapour of the solvent of the ingredients of a mixed solvent into an extraction tower or column, and the heat of the vapour of the solvent coming from the still may be used to preheat the extract on its way to the still. In examples (1) acetic acid of 15-30 per cent is extracted with ether in counter-current, and the extract is distilled, the 70 per cent acid resulting therefrom being extracted with methylene chloride, yielding finally an acid of 97-98 per cent, and a liquor of 30 per cent which is returned to the first stage (2) the same dilute acid is concentrated by the first stage as above described, and the 70 per cent acid is treated with a mixture of 2 volumes ether and 1 volume of petroleum ether.
Patent GB-955472-A (GB)
Title: Improvements in storage or punched tape
Inventor: SHANNON EDGAR FREDERICK
IPC: B42F7/02
Filed: 1959-06-12
Abstract: 955,472. Filing papers; indexing. SHANNON Ltd. June 13, 1960 [June 12, 1959], No. 20240/59. Heading B6E. A carrier for the storage of a length of punched paper tape, comprises a sheet or folder having on one face a pocket which is defined by a tab folded inwards from one side edge of the sheet or folder, the free edge of the tab being secured to the face of the sheet or folder at an intermediate position across the width of the sheet or folder, the tab stopping short of the top of the sheet or folder, and the bottom of the pocket being closed by a further tab or by the hinge of the folder. Tabs 4, 6 on adjacent edges of a sheet 2 are folded over and the free edge of the tab 6 inserted beneath a tongue 10 to form a pocket 3. Alternatively, the tab 6 is provided with a tongue which is inserted in a straight slot in the sheet. A plurality of the sheets are held captive in a drawer by a rod passing through . apertures 14 in their lower edges, or are hinged to a backing member in overlapping fashion with the top marginal edge of each sheet exposed for identification. The sheet may be provided with a pocket at each side. Alternatively, the carrier  is in the form of a folder, Fig. 3 (not shown), provided with a tab at one edge, which is bent over and inserted beneath a tongue cut out of said folder. The lower end of the pocket may be closed by a second tab as before or by the hinge line of the folder. A vertically sliding signal strip, Fig. 2 (not shown), to indicate the absence of a tape from a pocket, is threaded through two horizontal slots in the sheet 2, the lower edge of the strip being of greater width than the lower slot. An index tab may be provided at the upper edge of the sheet 2.
Patent GB-1371433-A (GB)
Title: Process for the production of paper
IPC: B32B29/02
Filed: 1972-05-02
Abstract: 1371433 Reinforcing paper and board SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ NV 2 May 1972 [3 May 1971] 20358/72 Heading D2B [Also in Division B5] A process for reinforcing paper or board made from cellulosic fibres comprises incorporating therein polymer fibres obtained by fibrillation of a cold-stretched laminate film comprising two or more layers of different polymer composition, the fibres being arranged in random directions, and heat-treating the paper or board comprising the cellulosic and polymeric fibres at a temperature lying above the M.P. of the lowest melting polymer and below the M.P. of the highest melting polymer. The laminate film may comprise a layer of mainly polypropylene and a layer of mainly polyethylene. The polymeric fibres may be added in the form of staple fibres to the cellulosic fibres and a sheet formed from an aqueous suspension thereof. Alternatively, the polymeric fibres either in the form of staple fibres or a continuous network or fleece may be introduced between sheets of wet paper or board formed solely from cellulosic fibres. Conventional additives e.g. fillers, dyes, glue, or resin may be added during paper or board making.
Patent GB-210043-A (GB)
Title: Improvements in or relating to boat davits
IPC: B63B23/04
Filed: 1923-08-11
Abstract: 210,043. Dingertz, K. Aug. 11, 1923. Davits. - Davit arms dare composed of several parts welded together along their longitudinal edges to form a hollow box-like structure as in Fig. 3. The arm may be composed of cast steel or wrought iron plates a. In modifications the plates a are replaced by four angle irons, by two channel irons, or by one channel iron and one plate.
Patent GB-206204-A (GB)
Title: Improvements in power transmission
IPC: F16H33/12
Filed: 1922-07-27
Abstract: 206,204. Constantinesco, G. July 27, 1922. Variable-speed gearing rendered automatic by the action of a oscillating mass and acting through ratchets, as described in Specification 185,022, is modified by causing the three principal links in the system to act along lines x, y, z, Fig. 1, directed at angles fulfilling a condition, the simplest case of which is that these lines are at 120‹ to one another. In Fig. 2, the link 4 connected to the driving crank 4<1> is equally inclined to the link 2 connected to the oscillating crank 1, and mass k, Fig. 3, and to the link 6 connected to the shaft 12, which is ratchet driven thereby. Springs 13 steady the drive. The ratchets 15 of the friction type as well as reversible ratchet gearing used in a modification are described in Specification 205,293.
Patent GB-734820-A (GB)
Title: Improvements relating to textile drafting apparatus
Inventor: HUNTER WILLIAM ALDRED
IPC: D01H5/00
Filed: 1953-07-24
Abstract: 734,820. Drafting textile fibres. T.M.M. (RESEARCH), Ltd. May 17, 1954 [July 24, 1953], No. 20617/53. Classes 120(2) and 120(3). A strand of fibres is prepared for spinning by subjecting it to an initial drafting operation, reforming and/or condensing the strand in a neutral zone shorter than the staple length of the fibres and in conditions wherein it is maintained under tension and subjecting the strand to a further drafting or other processing operation. Preferably the tension is obtained by imposing a draft in the neutral zone that does not exceed 1À05.