baber/WOPTO huggingface dataset:
Patent GB-788627-A (GB)
Title: Improvements in prompting devices
IPC: G03B21/00
Filed: 1955-12-28
Abstract: 788,627. Prompting devices. TELEPROMPTER CORPORATION. Dec. 28, 1955 [June 8, 1955], No. 37110/55. Class 132(1) [Also in Group XX] Apparatus for the visual presentation of written information to a speaker without obstructing his line of vision comprises a cueing device carrying the information in a liinited vertical area and a plane mirror inclined at 45 degrees to the said area to reflect light therefrom vertically to a partially transparent plane mirror supported by a stand. As shown the device comprising a housing 2 containing the cueing device 4 such as described in Specification 710,385 [Group XVIII] which presents the appropriate reading matter at an aperture 6 light from which is reflected by a mirror 22 to the partially transparent mirror 28, supported on a telescopic stand 24, to be visible to the speaker.
Patent GB-342062-A (GB)
Title: Improvements in and connected with semaphore and like signal control apparatus
IPC: B61L7/02
Filed: 1929-12-04
Abstract: 342,062. Railway signals. OWENS, W. J., 5, Catherine Place, Bath, and MUTLOW, G. 265, Maryvale Road, Bournville, Birmingham. Dec. 4, 1929, No. 37150. [Class 105.] Wire and like compensators.-Relates to semaphore and like signal operating means in which a wire 7, free to expand or contract and kept in tension by a weight 8, passes through a guide 17 on the tail 6 of the operating lever and is automatically clutched thereto by a member movably mounted on the guide when the lever is moved to lower the signal. According to the invention the guide 17 slides over a bar 22 which is formed with a cam abutment to move the clutch member away from the wire when the signal lever is returned to normal. In the construction shown in Figs. 1 and 3, the clutch member comprises a tooth 19 carried on a plate 20 which slides on the guide 17 being moved to the clutching position by a cam 21b and retracted by a cam 21a when the lever 1 is respectively operated and restored; both cams are provided on a bar 22 over which the guide 17 slides. The clutch member may be a weight- or spring-biassed pivoted tooth or friction segment and, as shown in Fig. 9, the cam-carrying bar 22 may be actuated by the catch-handle operated lock 2 which, when the signal lever is at the normal end of the quadrant, engages a wing 2b on a lever 2a by which the bar 22 can be actuated.
Patent GB-1269487-A (GB)
Title: Process for forming a metal-phosphorus-sulphur coating on a substrate
IPC: D06M11/00
Filed: 1970-08-03
Abstract: 1,269,487. Pre-treating substrates prior to electroless or electrolytic coating. HOOKER CHEMICAL CORP. Aug.3, 1970 [Aug. 4, 1969; Sept.3, 1969; March 30, 1970], No.37409/70. Headings C7B and C7F. A substrate, particularly a non-metallic material is pre-treated with phosphorus sesquisulphide and then with a solution of a metal salt or complex to form a metal-phosphorussulphur coating, the metals being selected from Groups IB, IIB, IVB, VB, VIB, VIIB or VIII of the Periodic Table. The pre-treated substrate is then electrolessly and/or electrolytically coated with a metal such as Cu, Ni or Cr. The substrate may be plastics, cellulosic, ceramic, cloth, paper, wood, cork, cardboard, clay, porcelain, leather, porous glass, asbestos and cement and is preferably cleaned in an organic solvent such as trichloroethylene or benzene. The phosphorus sesquisulphide may be used as a liquid or a solution in an organic solvent in a concentration of 0À0001% to saturation, the solution temperature being up to 135C. The treated substrate is dried in N 2  or CO 2  atmospheres prior to treating with the metal salt or complex solution. A large selection of plastics substrates is examplified.
Patent GB-776473-A (GB)
Title: Improvements in or relating to processes and apparatus for separating liquid mixtures by flash vaporisation
IPC: B01D3/06
Filed: 1954-12-28
Abstract: <PICT:0776473/III/1> <PICT:0776473/III/2> <PICT:0776473/III/3> Flash-vaporization apparatus comprises a transfer tube having a confined flow channel of relatively small cross-section disposed to admit liquid tangentially into one end of the tube, a centrifugal separator at the other end of the tube, and a device (e.g. a steam-ejector) for maintaining reduced pressure in the separator and transfer tube.  When liquid enters the tube, flash-vaporization takes place and a dispersion of liquid droplets in vapour is formed; this dispersion flows along the tube with helical motion and equilibrium between the two phases is attained; the dispersion is then discharged into the separator. The apparatus is suitable for use in oil refineries. Straight-run residual oil is pumped through furnace 12 (Fig. 1) where it is heated to 493 DEG C. under a pressure of 3.5 atm.  Partial cracking and vaporization of the oil take place in the furnace. The mixture of liquid and vapour passes to cyclone separator 14, from which the vapour is withdrawn via pipe 15 to a distillation column.  The liquid, which is now at 488 DEG C., flows through tube 17 to one or other of pipes 23, 23a (Fig. 3); and is then introduced tangentially into transfer tube 24 (Fig. 2) which has an inclination of 1 degree to 10 degrees to the horizontal.  A pressure of 20 mm. Hg. (absolute) is maintained in tube 24 by steam-ejector 39 which is connected to cyclone separator 28 via condenser 31.  Flash vaporization of liquid takes place in tube 24, and a fine dispersion of liquid drops in vapour moves helically along the horizontal axis of the tube, which is sufficiently long to permit equilibrium to be attained between the liquid and the vapour.  The helical motion causes the fine liquid droplets to be thrown out towards the peripheral region of tube 24 and to coalesce into larger drops that can be more readily separated later.  The helical motion is stopped near the discharge end by intersecting plate 26a and 26b.  The dispersion passes through transition section 27, which discharges it tangentially into cyclone separator 28.  The separated liquid collects in section 29, and is pumped out through pipe 44 or pipe 44a, the discharge rate being controlled by a valve which is automatically operated according to the pressures at different levels in section 29 so that liquid is maintained at an intermediate level. The separated vapours flow up chimney 30 to condenser 31 which comprises a quenching column, containing trays, to which quench-oil is introduced through inlets 32, 33, 34.  Condensates mixed with quench-oil may be withdrawn through outlets 35, 36, 37. As an example, tube 24 may be between 2 and 5 feet in diameter for a flow of oil (measured as liquid) of 500 barrels per hour. The length of the tube is at least ten times its diameter.
Patent GB-964722-A (GB)
Title: Improvements in and relating to epoxidation
IPC: C07D303/04
Filed: 1961-10-19
Abstract: Organic compounds containing at least one olefinic double bond are epoxidised by reaction with a preformed liquid aliphatic peroxy acid solution comprising a substantial equilibrium mixture of liquid aliphatic peroxy acid, liquid aliphatic acid, hydrogen peroxide and water in the presence of sufficient alkaline agent to maintain the pH of the reaction medium at from 2.5 to 6.5 and in the presence of up to the stoichiometric amount of liquid aliphatic acid anhydride required to react with the hydrogen peroxide to form additional aliphatic peroxy acid.  The equilibrium mixture may contain a strong acid as catalyst. Organic compounds mentioned include dicyclopentadiene, cyclohexene, di-isobutylene, pentane, limonene, octylene, pinene. The peroxy acids, preferably having 1 to 5 carbon atoms and including acids such as glycolic and chloroacetic peroxy acids, are used in amounts of from 20 to 40% by weight. The acid anhydride used is preferably derived from the same acid as the peroxy acid.  The acid catalyst may be a mineral acid, a strong organic acid, or a strongly acid cation exchange resin. The alkaline agent may be a hydroxide or basic salt of an alkali or alkaline earth metal, or the salt form of a weakly acidic ion exchange resin.ALSO:Conjugated diene polymers are epoxidised by reaction with a preformed liquid aliphatic peroxy acid solution comprising a substantial equilibrium mixture of liquid aliphatic peroxy acid, liquid aliphatic acid, hydrogen peroxide and water in the presence of sufficient alkaline agent to maintain the pH of the reaction medium at from 2.5 to 6.5 and in the presence of up to the stoichiometric amount of liquid aliphatic acid anhydride required to react with the hydrogen peroxide to form additional aliphatic peroxy acid. The equilibrium mixture may contain a strong acid as catalyst. Organic compounds mentioned include polybutadiene, a styrene-butadiene copolymer, polycyclopentadiene.  The peroxy acids, preferably having 1 to 5 carbon atoms and including acids such as glycolic and chloroacetic peroxy acids, are used in amounts of from 20 to 40% by weight.  The acid anhydride used is preferably derived from the same acid as the peroxy acid.  The acid catalyst may be a mineral acid, a strong organic acid, or a strongly acid cation exchange resin. The alkaline agent may be a hydroxide or basic salt of an alkali or alkaline earth metal, or the salt form of a weakly acidic ion exchange resin.
Patent GB-982888-A (GB)
Title: Fire access door unit
Inventor: GREEN JAMES HUGH
IPC: F23M7/00
Filed: 1962-10-04
Abstract: 982,888. Facilitating fire-fighting. JAMES GREEN DEVELOPMENTS Ltd. Oct. 17, 1963 [Oct. 4, 1962], No. 37533/62. Heading A5A. [Also in Division F4] A door unit for gaining access to ventilation ducting 17 (to extinguish fires therein &c.) comprises a tubular body 10 closed at one end by a readily frangible panel 18 and having its other end closed by a pivoted door 14 operable by pressure acting over the face nearer to the frangible panel but not by pressure acting over the face remote therefrom. The body 10, which is of square cross-section, is secured over a hole in the ducting 17 by a flange 16 which may be positioned at any point along the length of the body. The panel 18, which may be of asbestos or heat-proof glass, is removably secured to the body 10 by bolts 12. The door 14, which comprises a wire gauze panel hinged at 13, is prevented from opening into the body 10 by an inner tube 15, and may be urged towards the panel 18 by weights or springs.
Patent GB-1178998-A (GB)
Title: Improved methods of and means for producing slow speed rotation of an alternator
IPC: H02P9/08
Filed: 1967-08-16
Abstract: 1,178,998. Control of A.C. motors; starting prime movers; converting. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. 16 Aug., 1967 [16 Aug., 1966; 20 Feb., 1967], No. 37732/67. Headings H2F, H2H and H2J. An alternator is run as a motor at a speed below that at which it operates as a generator by supplying its stator with relatively low frequency A.C. from a source which can also be used to supply direct current for field excitation during generator operation. As shown the source comprises a mercury arc or semiconductor converter bridge 8, the frequency of which is automatically increased or decreased by an unspecified device 9. One use of the invention is to ensure uniform cooling of a steam or gas turbine prime mover during shut-down, and in this case device 9 can be made to respond to turbine temperature. For generator operation a switch 7 is closed and the bridge 8 operates as a rectifier supplying rotor 3. In an alternative embodiment the source comprises three commutator machines, one for each phase, connected to the stator, their fields being supplied with low frequency A.C. (Fig. 2, not shown) and for generator operation the machines are connected in series with the rotor (Fig. 3, not shown). During motoring the alternator field is either short circuited (directly or through a resistor) or is supplied with D.C.
Patent GB-366656-A (GB)
Title: Improvements in or relating to carbonising chambers or retorts
IPC: C10B27/06
Filed: 1930-12-15
Abstract: 366,656. Coke ovens or retorts. GAS CHAMBERS & COKE OVENS, Ltd., BOWATER, N. J., and LYMN, A. H., Artillery House, Westminster. Dec. 15, 1930, No. 37747. [Class 55 (ii).] A carbonizing chamber or retort a has a bottom gas outlet b communicating with a foul main c, a liquid seal being provided by a cup valve d which may be swung out of engagement with the dip-pipe g. This valve may be raised or lowered to increase or decrease the seal of the carbonizing chamber. The valve may be operated by hand, and may be filled with liquid either by a pipe e, or by swinging it downwards through the liquid in the main c.
Patent GB-1496259-A (GB)
Title: Process and apparatus for the treatment of an emulsion
IPC: B01D17/04
Filed: 1975-09-15
Abstract: 1496259 Treatment of emulsions OTTO DURR KG 15 Sept 1975 [16 Sept 1974] 37763/75 Heading B1X A process for the treatment of an emulsion comprises the steps of pumping the emulsion around a first circuit, withdrawing a portion of the emulsion from the first circuit and subjecting it to filtration, optionally ultrafiltration, in a second circuit to obtain a filtrate and a concentrate, and discharging the concentrate from the second circuit. An apparatus comprises a first circuit, pump means for circulating the emulsion in the first circuit, a second circuit including filter, optionally ultra filter, means and connected to the first circuit, and a first valve for totally or partially restricting the flow of emulsion from the first circuit to the second circuit the arrangement being such that the emulsion is filtered in the second circuit to obtain a filtrate and a concentrate and means for discharging the concentrate from the second circuit. The second circuit may be connected to a collecting vessel by two lines between which the filter means is disposed to form a third circuit. The use of a semi-permeable tubular membrane for recovering oil/water emulsion is described.
Patent GB-982186-A (GB)
Title: Improvements in or relating to electrical inductance coils
IPC: H01F17/04
Filed: 1961-10-21
Abstract: 982,186. Inductors. E. K. COLE Ltd., A. E. KING, and F. G. GRISLEY. Oct. 22, 1962 [Oct. 21, 1961], No. 37828/61. Heading H1T. An inductance coil assembly comprises a former carrying a coil around which is cast a core of magnetic particles in a thermoplastic substance. The coil may be tuned by an adjustable magnetic slug. In a manufacturing process an inner sleeve is inserted in the mould which is then filled with the core composition and the coil is finally inserted, on its former, before the composition coils. The assembly may be similar to that disclosed in Specification 873,467.
Patent GB-1244322-A (GB)
Title: A sliding sash window
IPC: E06B3/44
Filed: 1968-08-08
Abstract: 1,244,322. Double hung sliding sash windows. SEASON-ALL INDUSTRIES Inc. 8 Aug., 1968 [11 Aug., 1967], No. 37906/68. Heading E1J. In a double-hung sliding sash window with meeting horizontal rails in the closed position of the window, the gap between these two rails, top rail 12 of the lower sash 6 and bottom rail 13 of the upper sash, is closed by a "floating" interlock bar 75 slidingly supported as by groove 78 on the bar engaging on a projection 73 on the rail 12, the bar having a downwardly projecting flange 81 which interengages with an upwardly projecting flange 82 on the rail 13 so as to close the gap between the two rails. Sealing strip 57 on the floating bar 75 form seals with the side and projection 82 of the rail 13 and other seals may be provided between the floating bar and projection 73, there being stops in the form of adjustable grub screws 84, 86, Fig. 5 on the ends of the bar 75 to limit its movement on the projection 73, with a compression spring 87 between the grub screw 86 and the adjacent end of the projection 73, so that as the lower sash is moved in the direction of arrow 88, for the purpose of removing the sash from the frame. The spring is compressed and after release of the sash the bar 75 is returned to its normal position on the rail 12. End caps 91, 92 (Fig. 7 not shown) cover the ends of the bar. The invention is described as incorporated in a counter-balanced sash window in which the sashes slide in jamb sash guide channels formed by outer flanges 103 and a jamb divided strip 90 (see left hand side of Fig. 3) and web 101 with a counter balance 17 in each channel of one jamb (left hand side of Fig. 3), each channel of the right jamb having inturned flanges 18 on the strip 90 to cooperate with guides on the adjacent (right) stiles of each sash and a longitudinal slot on the other (left) stiles of the sashes to receive respective couter balances 17, the floating bar 75 engaging at its end 91 the left divided strip 90 to move the bar toward the opposite (right) flange 18 upon insertion of the sash in the jamb sash guide channels to receive the counter balances 17 and position the sash guides on the flanges 18, the bar 75 then being retained between the bolt divider strips 90. A second 'floating' bar may be provided similarly to bar 75 on the rail 13, the two floating bars interengaging to close the gap between the two meeting rails 12, 13. The window construction is intended as a replacement in a shell from which an old window has been removed and for features of the window frame see abridgement of Specification 1,244,323. For features of the counter-balance arrangements see abridgment Specification 1,244,324 and for features of the sash guiding and arrangements for removing the sashes from the frame see abridgment Specification 1,244,325.
Patent GB-363822-A (GB)
Title: Improvements in or relating to fire extinguishing apparatus
IPC: A62C5/00
Filed: 1930-12-16
Abstract: 363,822. Fire-extinguishers. FOAMITE FIREFOAM, Ltd. and GILBERT, V. G. W., 55, Great Marlborough Street, London. Dec. 16, 1930, No. 37962. [Class 47 (ii).] The valve 4 of the inner vessel 2 of an inversion extincteur is operated by a rotary cam 18 mounted between ears 16 on the filler cap 9 of the extincteur. The cam, which is operated by a lever 22, comprises discs 18 eccentrically mounted in spaced relation on a pin 17 and formed with inturned peripheral flanges 18a. The upper end of the valve stem 13 is reduced and carries a pin 19 between the discs. In opening the valve, the inner surfaces of the flanges 18a engage the pin 19. In closing it, the outer surfaces of the flanges engage shoulders 13a on the valve stem. The latter is in two telescoping parts 12, 13 held apart by a spring 14. A flat on the cam discs locks the valve in closed position. The Provisional Specification refers to Specification 332,922, [Class 47 (ii), Fire-extinguishing &c.].
Patent GB-1424332-A (GB)
Title: Azo dyestuffs
IPC: C09B31/047
Filed: 1972-08-15
Abstract: 1424332 Sulphone azo dyes IMPERIAL CHEMICAL INDUSTRIES Ltd 19 July 1973 [15 Aug 1972] 38009/72 Heading C4P Azo dyes, which are free of sulphonic acid groups, have the formula wherein A is the residue of a diazo-component of the aromatic carbocyclic or heterocyclic series; B is a 1, 4-phenylene radical which can be substd; R<SP>1</SP> and R<SP>2</SP> are each independently H or an opt. sub. alkyl, cycloalkyl, phenyl or heterocyclic radical; and X is an alkylene radical of at least 2C, the -SO 2 XCOOH group being directly attd. to a carbon atom of an aromatic ring present in A, B, R<SP>1</SP> or R<SP>2</SP>. The dyes are prepared by diazotisation and coupling, and give yellow to navy shades with synthetic textiles such as aromatic polyesters, cellulose acetates, polyamides, polyacrylonitrile, polyurethanes, and blends of the above with each other or with natural fibres such as wool and cellulosic fibres.
Patent GB-796222-A (GB)
Title: An electric rotary-field system
IPC: H02K3/493
Filed: 1954-06-09
Abstract: 796,222. Securing coils for A.C. motors. PAPST, H. June 9, 1954, No. 38210/57. Divided out of 796,221. Class 35. The subject-matter of this Specification is also described in the original Specification 796,221 which is referred to, but the claims are directed to the slot wedges.
Patent GB-1275198-A (GB)
Title: Process for the impregnation dyeing of synthetic fibre materials
Inventor: WEGNER PETER
IPC: D06P1/90
Filed: 1970-08-07
Abstract: 1275198 Solvent dyeing FARBENFABRIKEN BAYER AG 7 Aug 1970 [7 Aug 1969] 38212/70 Heading D1B [Also in Division C4] Synthetic fibre materials of polyesters, polyamides, polyurethanes, polyolefins and cellulose triacetate are solvent dyed with anthraquinone dyes of the general formula: wherein B and B' are C 1 -C 9  alkyl, cycloalkyl or aralkyl, Hal and Hal' are halogen, m and n are 0, 1, 2 or 3 with the proviso that n+m is at least 1 and p and q are 0, 1 or 2. After impregnation with a solution of the dye in a solvent the fibre material is subjected to a heat treatment at 120-230C e.g. a dry heat treatment or a heat treatment in super heated solvent vapour. The solvents used which are water-immiscible include tri- and tetra-chloroethylene and 1, 1, 1-trichloroethane and the dyestuff may be dissolved in a first solvent e.g. an alcohol, dimethylformamide, dimethylacetamide, dimethylsulphonide or sulpholane before adding to the water-immiscible solvent. Red-violet shades are obtained.
Patent GB-1028800-A (GB)
Title: Improvements in or relating to machines for machining curved or straight tooth bevel gears
Inventor: BACHMANN LOTHAR
IPC: B23F23/12
Filed: 1964-09-21
Abstract: 1,028,800. Gear-cutting. ZAHNSCHNEIDEMASCHINENFABRIK MODUL VEB. Sept. 21, 1964, No. 38426/64. Headings B3B and B3K. A bevel-gear milling, planing or grinding machine comprises a workpiece pillar 8 pivotally mounted on a bed, a tool pillar 3 reciprocable on the bed and a stationary auxiliary pillar 6, located on the bed at the side of the tool pillar and connected by a cross-support 9 to the workpiece pillar. The two milling-cutters 5 represent one tooth of a generating crown wheel. The support 9 is clamped hydraulically or mechanically.
Patent GB-1319178-A (GB)
Title: Methine dyestuffs
IPC: D06P1/90
Filed: 1971-08-17
Abstract: 1319178 Methin dyes BAYER AG 17 Aug 1971 [17 Aug 1970] 38495/71 Heading C4P Methin dyes of formula (in which R 1  and R 4  are each halogen, C 1 -C 5  alkyl, cycloalkyl aralkyl, alkoxy, nitro, carbalkoxy, CN, acyl, acylamino, carboxylic acid amide, alkylanilide or alkylamide, sulphonic acid amide or alkylamide, or CF 3 ; R 2  is H, 1-5 C alkyl, cycloalkyl, aralkyl or aryl; R 3  is H or alkyl or is an alkylene radical joined to the ortho position of aryl ring B to form a 5- to 6- membered ring which is optionally alkyl substituted or fused with a further carbocyclic ring; R 5  and R 6  are each 1-5 C alkyl, aralkyl or cycloalkyl; a and b are each 0-3; A is an anion; rings B and D are optionally fused with carbocyclic rings; the aromatic carbocyclic rings of the dye optionally contain one or more non-ionic substituents; in that at least one R 1  and R 4  radical is aralkyl). The dyes are prepared by conventional condensation reactions. Many pairs of suitable reactants are given (including mixtures, compounds in which ring D is fused to a benzo or cyclohexene ring, and compounds in which R 3  and ring B complete a 3 - methyl - 2,3 - dihydroindole, hexahydrocarbazole, 1,2,3,4 - tetrahydroquinoline or 7-methoxy-1,2,3,4-tetrahydroquinoline ring).
Patent GB-1444957-A (GB)
Title: Reciprocating-piston internal combustion engine
IPC: F02B23/06
Filed: 1973-08-15
Abstract: 1444957 Induction pipes L ELSBETT and G ELSBETT 15 Aug 1973 [23 Aug 1972] 38520/73 Heading F1B Direct injection reciprocating piston I.C. engine has swirl promoting means in the induction pipe and fuel is injected into a combustion recess in a direction tangential to the swirling air therein so that in the early stages of combustion the oxygen available for combustion in a zone at the centre of the combustion recess is maintained at a low level and the air near the wall of the recess does not take part in the combustion process until expansion begins. The swirling movement is initiated by a curved induction pipe which contains a vane 16, pivotally mounted at one end on an axis 18 and rotatable about the axis by a linkage in accordance with engine load or exhaust gas composition. Vane 16 is curved at the free end either towards or away from the valve guide 17.