baber/WOPTO huggingface dataset:
Patent GB-492696-A (GB)
Title: Improvements in or relating to the manufacture of anthraquinone derivatives
IPC: C09B1/28
Filed: 1937-03-25
Abstract: Diaralkylaminoanthraquinones are obtained by reacting an aminoanthraquinone devoid of sulphonic acid groups with an aralkyl halide or sulphate above 160 DEG  C. in presence of an alkali; the products dye acetate artificial silk blue shades, and dissolve in organic solvents.  In examples, benzyl chloride is reacted in presence of sodium carbonate with (1) 1 : 4 : 5 : 8 - tetraminoanthraquinone to give 1 : 4 : 5 : 8 - tetra(dibenzylamino)anthraquinone; 1 : 4 : 5 - triaminoanthraquinone may similarly be treated; (2) 1 : 4-diaminoanthraquinone to give 1 : 4-di-(dibenzylamino)-anthraquinone; (3) 1-aminoanthraquinone to give 1 - dibenzylaminoanthraquinone.  Specifications 23637/99, [Class 2], and 12828/10, [Class 2 (iii)], are referred to.  The Specification as open to inspection under Sect. 91 describes also the manufacture of monoaralkylamino-anthraquinones by treatment of an aminoanthraquinone with an aralkyl halide or sulphate at below 140 DEG  C.  In further examples, 1 : 4 : 5 : 8-tetraminoanthraquinone is heated with (1) benzyl chloride and sodium carbonate to give 1 : 4 : 6 : 8 - tetrabenzylaminoanthraquinone, (2) benzyl chloride, soda ash and basic copper acetate in phenol to give 1-benzylamino-4 : 5 : 8-triamino-, 1 : 5 - dibenzylamino - 4 : 8 - diamino-, 1-amino - 4 : 5 : 8 - tribenzylamino- or 1 : 4 : 5 : 8-tetrabenzylamino - anthraquinone according to the amount of benzyl chloride used, and (3) benzyl chloride and sodium carbonate in nitrobenzene to give 1-benzylamino-4 : 5 : 8-triaminoanthraquinone.  Also, 1 : 4-diaminoanthraquinone is heated with nitrobenzene, sodium carbonate, basic copper acetate and p-nitrobenzyl chloride to give 1 : 4-di-(p-nitrobenzylamino) - anthraquinone, which may be reduced to 1 : 4 - di - (p - aminobenzylamino) anthraquinone. Similarly, 1.8 - diamino-4 : 5 - dihydroxyanthraquinone may be converted to 1.8 - di - (p - nitrobenzylamino)-4 : 5 - dihydroxyanthraquinone and 1 : 8-di-(p - aminobenzylamino) - 4 : 5 - dihydroxy anthraquinone.  This subject-matter does not appear in the Specification as accepted.
Patent GB-672773-A (GB)
Title: Improvements relating to control apparatus for a.c. slip ring induction motors
IPC: B66C13/26
Filed: 1948-03-30
Abstract: 672,773. Control of A.C. motors. MACDERMID, P. March 2, 1949. [March 30, 1948; June 4, 1948] Nos. 8934/48 and 15094/48. Class 38 (iii). Hoisting and lowering apparatus comprises in combination with a slip-ring induction motor 5, an electric drag device 9 including a squirrel cage or other short-circuited rotor and a stator excited by a direct-current winding, the rotor being adapted to be drivingly connected with the load, and possibly also with the motor, the load when lowering providing the power to. rotate the rotor of the drag device, thereby generating a current which exercises a braking- effect on the load. As shown, the hoist motor is supplied from mains 6, its rotor circuit being connected to a controller 8. The motor is mechanically coupled to the squirrel cage rotor of the drag device, the field winding of which is supplied from the mains through a rectifier 11. A regulating resistor 12 and a protective resistor 18 are provided. The braking device may be effective during lowering operation only, or during both hoisting and lowering operation, and may be adjusted to provide a creeping speed. The regulator 12 may be separately adjusted or may be electrically connected or mechanically coupled to the controller. The brake and motor may be incorporated in the same frame. When there are several motors, separate drag devices may be provided.
Patent GB-831818-A (GB)
Title: Improved apparatus for the arrangement of rods
Inventor: SMEJDA OSCAR JOSEF
IPC: B65G47/14
Filed: 1957-03-19
Abstract: 831,818. Orientating rods. CHRISTIANIA SPIGERVERK. March 19, 1957 [March 20, 1956 ; July 18, 1956], No. 9005/57. Addition to 761,899. Class 78 (1). Apparatus for arranging a bundle of rods 7, Fig. 1, includes a framework 6 which carries uprights 21 between which the bundle of rods is introduced, the framework being reciprocated by motor 20 acting through rack-and-pinion 14, 15 so that the rods roll over the freely-mounted rolls 24, 25 to take the orientation shown at 8. The horizontal frame may take the form of endless chains 40, Fig. 3, carrying uprights 21, the chains having rollers 46 running on fixed rails 31 so that the chains may be reciprocated or driven in one direction to orientate the rods and then to discharge them at one end, a fresh bundle of rods being introduced at the other end.
Patent GB-806860-A (GB)
Title: Refrigerant evaporator
Inventor: OREMER JOSEF GERHARD
IPC: F25B39/02
Filed: 1957-03-19
Abstract: 806,860. Refrigerating. TEVES, H., TEVES, E. A., and TAUSEND, M., [trading as TEVES MASCHINEN-UND ARMATURENFABRIK K.G., A.]. March 19, 1957, No. 9019/57. Class 29 In a refrigerant evaporator in which the refrigerant passages 2 are formed either by pressing out or by subsequent dilating by fluid pressure metal sheets welded together face to face, the sensing member of the thermal control is mounted in a further recess 3 formed between the sheets. A housing with the passages formed therein has the area shaded in Fig. 2 cut off to provide opening 6 for recess 3 and refrigerant inlet and outlet 4, 5. The part of the housing containing recess 3 is then bent up to allow insertion of the sensing member.
Patent GB-736545-A (GB)
Title: Improvements in or relating to end plugs for rolls or reels of paper and other materials
IPC: B65D59/02
Filed: 1953-04-01
Abstract: 736,545. Packaging. WARDEN, J. April 1, 1953, No. 9028/53. Class 94 (1). An end plug for a roll of paper or other sheet material, e.g. linoleum or cloth, consists of a metal or plastic cup having a flanged rim 2 and a hole 3 to facilitate extraction, the hole being surrounded by a strengthening flange 4.
Patent GB-487172-A (GB)
Title: Improvements in and relating to a.c. induction motors
IPC: H02K7/04
Filed: 1937-03-30
Abstract: 487,172. Control of A.C. motors; actuating controllers. ENGLISH ELECTRIC CO., Ltd., ROBERTS, L., and BALL, R. D. March 30, 1937, No. 9038. [Class 38 (iii)] [Also in Group XXXV] Resistance connected to the rotor windings through slip-rings is short-circuited at a predetermined speed by one or more contactors controlled by a centrifugal switch the moving part of which is mounted on the end of the slipring unit within the slip-ring enclosure. In the form shown, the slip-rings 10 are shortcircuited by the contacts 16d of a contactor 16 the winding 16a of which is short-circuited until a predetermined speed is reached when the centrifugal switch 7 opens the contacts 15. The resistance may be mounted on the motor frame and may be cut out in sections by employing additional contactors, e.g. controlled by dashpots. The contactor arm may also carry contacts for interrupting the auxiliary winding circuit or reducing the capacity therein in the case of single phase motors or these changes may be effected by a separate contactor controlled by the centrifugal switch. The fixed parts of the centrifugal switch are carried by a member on the motor frame and the moving parts by a tripod bolted to the slip-ring sleeve. Specifications 384, 777 and 418,688 are referred to.
Patent GB-359365-A (GB)
Title: Improvements in or relating to synthetic resins and their application
IPC: C08G63/48
Filed: 1931-03-25
Abstract: A drying or semi-drying oil is bleached by heating it to about 260 DEG  to 290 DEG  C. in the absence of an oxidizing gas but preferably in a current of gas such as carbon dioxide or flue gas.  The bleached oil is then slightly cooled and mixed with a polyhydric alcohol such as glycerol or ethylene glycol or with mixtures of alcohols containing less than three hydroxyl groups with alcohols containing more than two hydroxyl groups and finally esterified with a polybasic acid or anhydride thereof such as phthalic anhydride, succinic acid, fumaric acid, adipic acid, or maleic acid.  The last two stages are preferably carried out in the presence of carbon dioxide and the final stage in a current of the gas.  In examples alkali refined linseed oil is bleached by heat treatment in a current of carbon dioxide and after a slight cooling glycerol is incorporated with the bleached oil in an atmosphere of carbon dioxide; finally phthalic anhydride, preferably melted, is added and the esterification completed in a current of carbon dioxide.  In further examples soya bean oil or a mixture of alkali refined linseed oil and chinawood oil may replace the linseed oil used in the first examples.  A non-yellowing white enamel is made from the resin of example 1, lithopone, zinc oxide, mineral spirits, and a drier, whilst a light-coloured varnish comprises the resin of example 5, turpentine, and a manganese drier.  Specification 356,340, [Group III], is referred to.ALSO:Ester condensation products.-A drying or semi-drying oil is bleached by heating it to about 260-290 DEG  C. in the absence of an oxidizing gas but preferably in a current of gas such as carbon dioxide or flue gas.  The bleached oil is then slightly cooled and mixed with a polyhydric alcohol such as glycerol or ethylene glycol or with mixtures of alcohols containing less than three hydroxyl groups with alcohols containing more than two hydroxyl groups and finally esterified with a polybasic acid or anhydride thereof such as phthalic anhydride, succinic acid, fumaric acid, adipic acid or maleic acid.  The last two stages are preferably carried out in the presence of carbon dioxide and the final stage in a current of the gas.  In examples alkali refined linseed oil is bleached by heat treatment in a current of carbon dioxide and after a slight cooling glycerol is incorporated with the bleached oil in an atmosphere of carbon dioxide; finally phthalic anhydride, preferably melted, is added and the esterification completed in a current of carbon dioxide.  In further examples, soya bean oil or a mixture of alkali refined linseed oil and chinawood oil may replace the linseed oil used in the first examples.  A non-yellowing white enamel is made from the resin of example 1, lithopone, zinc oxide, mineral spirits, and a drier whilst a light-coloured varnish comprises the resin of example 5, turpentine, and a manganese drier.  Specification 356,340 is referred to.
Patent GB-804445-A (GB)
Title: Improvements in electromagnetic couplings for power transmission systems
Inventor: FITCHETT FREDERICK
IPC: H02K49/02
Filed: 1956-03-23
Abstract: 804,445. Electromagnetic coupling drives. BRITISH THOMSON-HOUSTON CO., Ltd. March 22, 1957 [March 23, 1956], No. 9155/56. Class 35. In a drive from a prime mover to an output shaft via forward and reverse gears, particularly for ship propulsion, an electromagnetic coupling being on the input side of each gear, the coupling associated with the reverse gear has relative motion imparted to its primary and secondary members so that it operates as a generator while torque is being transmitted through the other coupling to the forward gear. As shown, when the engine coupled to shaft 1 drives forward gears 28, 29 through coupling members 22, 25 coupling member 23 rotates in the opposite direction to the excited member 21 and induces current in the winding 24. When the shaft 15 is to be driven in the reverse direction through gears 30-32 the winding on coupling member 22 is unexcited and winding 24 is short-circuited. Member 25 has a squirrel cage winding. Two entirely separate couplings can be used. Specifications 677,229 and 702,861 are referred to.
Patent GB-1422612-A (GB)
Title: Lubrication
IPC: C10M171/00
Filed: 1973-02-26
Abstract: 1422612 Lubricating; aerosol compositions SKF INDUSTRIAL TRADING & DEVELOPMENT BV 26 Feb 1973 [26 Feb 1972] 9213/73 Headings C4X and C5F [Also in Division F2] Relatively movable parts contained in a chamber, e.g. a roller bearing, are lubricated by filling the chamber with a stable foam comprising an oil and/or grease and a foaming additive consisting of at least one long chain alcohol. The alcohol is suitably 3% of the amount of oil and/or grease, and may be a 1 : 1 mixture of stearyl alcohol and cetyl alcohol. Emulsifiers may be added. The foam may be supplied from an aerosol container using halogenated hydrocarbon as propellant, and may be sprayed into an unpressurized duct or orifice communicating with the chamber. Alternatively the container may be connected to a duct constantly filled with pressurized foam which reaches the lubricating positions in metered amounts through a relay-controlled valve.
Patent GB-201207-A (GB)
Title: Improvements in gear cutting machines
IPC: B23F1/08
Filed: 1922-03-30
Abstract: 201,207. McLeod, R. J. March 30, 1922. Gear-cutting; tools.-In a gear-cutting machine three or more blank holding tables are arranged round a reciprocating cutting tool so that all the blanks are operated on during each cutting stroke. In the form shown the cutter, comprising a broach 1 made up of pinion-shaped form cutters, is mounted on a spindle 1<a> carried by a ram rotatably connected to a rack 8 reciprocated by a pinion 10 driven through belt and spur gearing from a main shaft 27. Reversal is effected by means of stops on a wheel 29 which act through lever mechanism and spring toggle device 37 to operate the beltshifting forks. The upper end of the cutter spindle and the ram 3 are mounted in guides 68, 4 respectively. The blank carrying tables 11, 12, 13 are supported on slides which may be fed along beds disposed radially of the cutter spindle by hand wheels 64. Automatic indexing of all the blank tables and of the cutter is effected during each return stroke through gearing actuated by a shaft 67 driven off the main shaft and connected through a clutch 39 and suitable spur and bevel gearing to worms 15, 16, 17 actuating dividing worm wheels on their respective tables. Change gears are embodied in the driving trains to vary the amount of the indexing movement of any or all of the tables as desired. The cutter is indexed by means of a worm 6 driven from a shaft 43a in the dividing train. The indexing movements are controlled by the clutch 39 which is engaged by means of a stop 33 on the wheel 29 acting through lever mechanism and spring toggle 40 and disengaged by a cam on a shaft 41. In a modification for cutting helical gears, the guide 4 comprises a cylinder having an internal guide coacting with a helical member on the ram 3 so that the cutter, the teeth of which are helically arranged, is oscillated about its axis during its reciprocation past the. blanks.
Patent GB-454236-A (GB)
Title: Improvements relating to the manufacture of waterproof textile materials
IPC: B29C37/00
Filed: 1935-03-25
Abstract: 454,236. Coated fabrics. COGNO, G., 3, Corso Francis, Torino, Italy. March 25, 1935, No. 9288. [Class 140] [See also Group XV] Textile material is proofed on one or both surfaces by sandwiching a rubber layer between the surface to be treated and a second piece of fabric, and subsequently removing the second piece of fabric so as to leave part of the nap of the second fabric adhering to the rubber layer, the said rubber layer being applied in a plurality of separate coatings. The coating next to the textile material may be free from sulphur, the other coating or coatings containing sufficient sulphur to vulcanize the whole rubber layer. A wool, cotton, &c. fabric with a nap on both sides is coated on a heated spreading machine with two layers of a coloured rubber solution containing sulphur and an accelerator on each side, and placed between two layers of textile fabric which have been coated with one coat of an uncoloured, sulphur-free rubber solution, followed by two coats of coloured rubber solution containing sulphur and an accelerator. The three layers are passed through a slightly heated calender, vulcanized, allowed to cool, and the textile fabrics are stripped from the napped fabric. The textile fabrics now bearing part of the nap removed from the napped fabric may be passed through a slightly warmed calender. A textile fabric can be proofed on both sides by treatment between two napped fabrics. A patterned napped fabric may be used, or it may be white and a pattern printed on the finished proofed fabric, or the pattern may be printed on the napped fabric after coating with rubber prior to uniting with. the textile material. The napped fabric may be re-used or may be coated after use with guttapercha and used for lining slippers or shoes or for making sports clothing. The two treated fabrics are separated from the central napped fabric in a machine in which the three-layer fabric is unwound from a roll, passes upwards between two small cylinders, the two treated fabrics being then separated from the napped fabric, pressed between rubber and metal cylinders, and wound up. The napped fabric is also wound up.
Patent GB-721611-A (GB)
Title: An improved process for the blowing of pig iron and other carbon-containing iron baths
IPC: C21C5/32
Filed: 1952-04-15
Abstract: In a process of manufacturing steel by blowing an oxidising gas on the surface of a molten bath of pig-iron, coating is effected by the addition to the bath of solid pig iron.  The amount of solid pig to be added may be 3-12 per cent by weight of the charge and it is preferably added towards the end of the last phase of the process.
Patent GB-115535-A (GB)
Title: A Self-sustaining Lever Type Lifter for Shells or other Loads or Materials.
Inventor: MACLEOD JAMES THOMSON
IPC: B66C1/42
Filed: 1917-06-30
Abstract: 115,535. MacLeod, J. T. June 30, 1917. Lever load-handling machines. - Shells, forgings, cases, casks, &c. P are engaged by lifting- tongs O, clamps, chain slings, &c. and lifted bv a chain F connected by a pin K to the pivoted lever G. The chain passes round a disk E which is mounted between plates A connected by an adjustable hanger C to a trollv running on an overhead runway. The load is sustained by t h e engagement of a spring bolt I with ratchet teeth D on the plates A.
Patent GB-1242163-A (GB)
Title: Photographic direct-print light developable materials
IPC: G03C1/49
Filed: 1969-02-21
Abstract: 1,242,163. Photographic photo-developable silver halide materials. XEROX CORP. Feb. 21, 1969 [Feb.23, 1968], No.9485/69. Heading G2C. A photographic photo-developable material contains a light-sensitive silver halide emulsion layer containing a soluble lead salt, e.g. lead nitrate, and a soluble thallium salt, e.g. thallium nitrate. All or part of the salts may be present during precipitation of the silver halide. A gold compound e.g. chlorauric acid and an iodide e.g. KI may also be present and the emulsion may be sensitized with a merocyanine dye or tetraiodofluorescein.
Patent GB-662183-A (GB)
Title: Improvements relating to syringes
IPC: A61M5/28
Filed: 1949-04-07
Abstract: 662,183. Syringes. FAULDING & CO., Ltd., F. H. April 7, 1949 [Nov. 29, 1948], No. 9491/49. Class 81 (ii). A container for use as a disposable hypodermic syringe comprises a barrel 5 closed at one end 7a by a resilient cap 9 and sealed at the other end 6 by a movable plug 10. Before sealing the container it is charged with a specified volume of medicament and when required for an injection is prepared for use by removing the cap 9 and sliding a needle N over the boss 8 a plunger 12 being then inserted into the barrel for actuation of the plug 10. In lieu of the integral boss 8 as shown the end 7a of the barrel may be fitted with a tubular metal boss. The container may be of polystyrene or other suitable plastic whilst the plug is of rubber or felt.
Patent GB-162168-A (GB)
Title: Travellers pocket table
IPC: A47B3/00
Filed: 1920-04-01
Abstract: 162,168. Worrall, G. April 1, 1920. Folding and collapsable tables.-A collapsable table adapted to be carried in the pocket comprises knuckle-jointed arms a, a<1>, b, b<1> pivoted on a common pivot d so that they can be extended in the form of a cross, to the extremities of which a cloth covering may be fixed by spring fasteners or the like. The arms may be provided with telescopic extensions e held extended by leaf springs.
Patent GB-135756-A (GB)
Title: Improvements in Pneumatic Tyres and Wheels for Road Vehicles.
Inventor: LANCHESTER FREDERICK WILLIAM
IPC: B60C29/00
Filed: 1918-12-03
Abstract: 135,756. Lanchester, F. W. Dec. 3, 1918. Air tubes.-The inflating-valve is arranged transversely to the wheel and so that the valve-body may be removed and replaced without demounting the tyre. Fig. 2 shows the invention applied to wheels having inner and outer pneumatic tyre members A, B such as are described in Specification 141,096. The airtube 10 carries a lug 11 fitting a box V on the inner periphery of the rim, the sides of the box and the lug having registering apertures to receive the valve. The valve comprises inter-engaging casings 30, 33 having flanged bosses 31, 34, between which and the washer 28 the lug 11 is gripped as shown. The parts 30, 33 are bored axially to receive the valve 36 and an adjustable plug 39 respectively, the latter serving to limit the lift of the valve 36. The spigot 32 of the part 30 has radial borings 35 opening into an annular groove which registers with axial borings 29 in the washer 28. The washer 28 may be omitted, in which case the lug 11 is formed of hard rubber with a metal liner for the air passage. As shown in Fig. 3, additional lugs may be fitted on the tubes to engage recesses in the rim to prevent creeping.
Patent GB-837618-A (GB)
Title: Improvements relating to a pressure smoothing device in combination with liquid pumps
IPC: F04B43/08
Filed: 1957-03-25
Abstract: 837,618. Smoothing pump discharge pressure. FISHER, J. C. March 25, 1957 [April 17, 1956], No. 9623/57. Classes 102(1) and 102(2). A pressure smoothing device S for combination with a pump P delivering a unidirectional pulsating flow comprises two identical bellows 92, 94 having their closed ends secured to a movable cross-head 84 and their open ends connected by conduits 104, 105 to the intake and discharge pipes 74, 72, respectively of the pump P. The cross-head 84 slides on rods 82 and is provided with ports 90 which provide communication between the spaces surrounding the bellows which is filled with an incompressible liquid. The bellows are surrounded by helical springs 110, 112 and the stiffness of these springs and the bellows are so chosen that the smoothing device is tuned to a predetermined harmonic of pressure pulsation frequency in the discharge line 72 whereby the pulsations in the discharge line are smoothed. The smoothing device may be in the form of a diaphragm between two chambers connected respectively to the intake and discharge lines. The smoothing device may be in the intake and discharge of a circuit fed by several pumps. The pump P may be of the type described in Specification 837,617 or may comprise two bellows 16, 18 secured to a crosshead 15 which is oscillated by a crank 42. The bellows are filled with liquid and actuation of the crank causes an oscillation of the liquid in conduits 68 and 70 which pumps the liquid from inlet pipe 74 to the discharge pipe 72.
Patent GB-224156-A (GB)
Title: Device for withdrawal of intermediate steam in which a piston subject to the pressure of withdrawal acts on the control gear of the engine
IPC: F01K7/36
Filed: 1924-04-16
Abstract: 224,156. Lanz, H. [Firm of]. Feb. 8, 1924, [Convention date]. Automatic gear. - In a steam-engine from which intermediate steam is withdrawn for auxiliary purposes, and in which the intermediate pressure affects a piston actuating the control gear of one or more cylinders, means are provided to relieve the piston of the back pressure of the gear. The piston-rod, Fig. 1, is formed as a rack and rotates against the resistance of a spring m, a pinion e on a shaft f provided with a wheel k and a weight. The shaft f through screw-and-nut gear h, g moves the control link c. In another construction, Fig. 3, the endwise movement of the piston-rod b, which is non-rotatable and has a steep screw-thread n, rotates an externally square-threaded nut q and moves longitudinally an outer nut r to actuate the link c. In a modification, the screw n rotates an eccentric carrying a control link.