baber/WOPTO huggingface dataset:
Patent GB-1000774-A (GB)
Title: Improvements in and relating to cleaning
IPC: C23G1/10
Filed: 1963-04-05
Abstract: An aqueous solution for cleaning and brightening lead-tin solder contains 5-15% by weight thiourea and 5-50% by weight fluoboric acid, and also preferably 0.1-1.0% of a cationic or non-ionic wetting agent; said solution being applied for 45 secs.-3 mins. at 90-150 DEG F., preferably 100-130  DEG F. The process may be applied to the soldered areas in printed circuits, stained or corroded by alkali persulphates used to etch away the copper foil backing.  Typical wetting agents are the cationic agents triethanolamine hydrochloride and alkyl dimethyl hydroxyethyl ammonium bromide, and the non-ionic agent isooctyl phenyl polyethoxy ethanol.  Specification 867,573 is referred to.
Patent GB-184567-A (GB)
Title: Improvements in and relating to adjusting devices for the windscreens of motor cars and like vehicles
IPC: B60J1/04
Filed: 1921-05-13
Abstract: 184,567. Godin, A. A. May 13, 1921. Pivoting - adjustments. -In wind-screens of the kind carried by a frame fixed to an horizontal tube which rotates on inner split-ended tubes carried by the supporting-posts, and is locked in any position by an internal expanding shoe, an additional screen is provided, rotating about the same axis and locked by the same shoe. This screen is carried bv a frame fixed to another tube rotating about the fixed inner tubes, and the two screens may be adjusted at any angles. The fixed inner tubes 1 carried by end supports 8 are split at 5 and separated by a gap 4, the additional tube 2 carrying one screen 10 also has a gap and is split-ended, these tubes are expanded against the outer tube 3, carrying the other screen 11, by the split shoe 7 operated by thumb-screw 6.
Patent GB-414856-A (GB)
Title: Improvements in optical systems for cystoscopes and the like
IPC: A61B1/307
Filed: 1933-05-10
Abstract: 414,856. Cystoscopes &c. SCHRANZ, R., 28A, Devonshire Street, Portland Place, London. May 10, 1933, No. 13610. [Class 81 (ii).] In cystoscopes and other instruments for viewing objects immersed in a liquid, wherein the optical system includes a window 4 in the outer casing 1 and may comprise an objective lens 2 and a prism 3, the window 4 comprises a lens having a concave face in contact with the liquid 5, the other face preferably being plane.
Patent GB-560695-A (GB)
Title: Purification of 2-mercaptoarylenethiazoles
IPC: C07D277/72
Filed: 1942-09-29
Abstract: 2-Mercaptoarylenethiazoles are purified by treating the crude product in the form of water-wet pellets with an organic solvent for the impurities which is heavier than water and immiscible therewith.  The preferred solvent is carbon bisulphide, but carbon tetrachloride or chloroform may also be used.  The treatment may be carried out either as a continuous or as a batch process. Thiazoles to which the process of the invention may be applied include 2 - mercaptobenzothiazole, 2 - mercaptotolylthiazoles, 2 - mercaptoxylylthiazoles, 2 - mercaptoalkoxybenzothiazoles, 2 - mercapto - 4 - phenylbenzothiazole, and the 2 - mercaptonaphthothiazoles.  The 2-mercaptoarylenethiazoles which are purified by the process of the present invention may be prepared by any convenient method.  Methods mentioned by which 2-mercaptobenzothiazole may be prepared include processes starting from dianilinomethane, sulphur and carbon bisulphide; from formanilide and sulphur, with or without carbon bisulphide; from thiocarbanilide carbon bisulphide and sulphur dichloride; from anilinobenzothiazole and hydrogen sulphide; from phenyl mustard oil and sulphur; from diphenylthiourea, carbon bisulphide and sulphur; from anhydroformaldehyde-aniline and sulphur; from o-o1-diaminodiphenyldisulphide and carbon bisulphide; from aniline sulphite, aniline and carbon bisulphide; from aniline, carbon bisulphide and nitrobenzene; and from aniline nitrobenzene sulphur and carbon bisulphide.  An example of the process is described. Specifications 283,679, [Class 2 (iii)], 475,296 and 479,855, are referred to.
Patent GB-724123-A (GB)
Title: Improvements in or relating to blades for compressors, turbines and the like
Inventor: WHITEHEAD LESLIE THOMAS
IPC: F01D5/18
Filed: 1952-05-30
Abstract: 724,123. Turbines and compressors. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. May 28, 1953 [May 30, 1952], No..13773/52. Class 110 (3). A turbine or compressor rotor blade comprises a blade part proper which consists of a strip of material of aerofoil cross-section 11 having a lateral notch 15 in its root end in which notch a part of the rotor engages, and a root block 12 cast on the root end of the strip. The blade shown has notches 15 formed in the leading and trailing edges and the cast-on root block is formed with notches 16 to correspond with the notches in the blade part proper. The notches 15 in the hollow blade shown are formed by pressing out the tabs 13 which are embedded in the cast-on root block. The blades are mounted in a rotor comprising discs 1, 2 having peripheral flanges la, 2a which are strengthened by welded-on rings 6, 7. Annular brackets 3, 4 are also welded on the discs and a ring 5 is shrunk on to these brackets to hold the discs together. Specification 723,813 is referred to.
Patent GB-1079031-A (GB)
Title: Improvements in or relating to endless track vehicles
Inventor: FLETCHER HENRY RAYMOND
IPC: B62D55/112
Filed: 1963-04-08
Abstract: 1,079,031. Endless track vehicles. DUNLOP RUBBER CO. Ltd. March 24, 1964 [April 8, 1963], No. 13823/63. Heading B7H. An endless track vehicle comprises a central platform 2 upon which is mounted two pairs of channel section guide rails 5 having bearing surfaces of polytetrafluoroethylene upon which slide the side members 18 of channel section reinforced rubber endless tracks 17 which pass over driving drums 10, idler drums 8 and tensioner drums 9. Lateral extensions of the platform 2 extend between the drums 8 and 10 and are provided with air intakes 24, 25 in which are located fans 26 which maintain air pressure in the lower runs of the tracks sufficient to support the vehicle. The drums 10 are driven through shafts 15 and bevels 14 and the fans 26 through shafts 28 and bevels 27 from a driving motor 16 located on the platform upon which is also mounted the driver's seat 30 and controls 31. The endless tracks have corrugated walls, Fig. 4, reinforced by metal slats 20a and reinforcing cables 19 are looped through the corrugations near the edges. In a modification, Fig. 5 (not shown), the track has arcuate side walls. The bearing between the edges of the endless tracks and the guide channels 5 may alternatively be provided by compressed air. An additional pneumatic tyred bearing wheel may be supported from the frame at each end of the vehicle.
Patent GB-215969-A (GB)
Title: Improvements in coiled wire stiffeners
IPC: A41C1/16
Filed: 1923-05-25
Abstract: 215,969. Kleeman, F. May 25, 1923. Stiffeners.-A spring stiffener of the kind wherein the coils are narrow as compared with the width of the stiffener strip and the left hand arm of one coil meets the right hand arm of the next adjacent coil in an acute angle, and wherein the median line through a coil is inclined to the longitudinal axis of the stiffener, is made from a single strand 1 of wire wound upon a mandrel so as to leave between the corresponding arms 20, 21 of adjacent coils a space having substantially the form of a parallelogram. In a modified form, one arm of each coil is slightly curved, and the coils may slightly overlap.
Patent GB-594167-A (GB)
Title: Improvements in and relating to light weight motor vehicles
IPC: B60K17/34
Filed: 1945-06-01
Abstract: 594,167. Change-speed gearing. WILLYSOVERLAND MOTORS, Inc. June 1, 1945, No. 13832. Convention date, June 5, 1944. [Class 80(ii)] [Also in Group XXXI] In a light motor vehicle of the jeep type, in addition to a normal three-speed and reverse gear box, a transfer box is provided which transmits the drive to the rear wheels only, or to all four wheels, or to all four wheels at a lower gear ratio. The shaft 102 is driven from the normal three-speed gear box and drives gears 138, 141, the former constantly meshing a gear 150 freely mounted on shaft 145 connected to a rear differential. Drive is transmitted, with the parts in the position shown, from gear 150 to shaft 145 through an internally splined slidable gear 152, which engages splines on the outside of the boss of gear 150, and through a sleeve 154 splined externally and internally to engage the splined left-hand tubular end of the shaft 145; thus in this position the rear wheels only are driven. By sliding the gear 152 to the left to the intermediate position shown in dotted lines, the gear 152 still engages the splines on gear 150, but by contact with the balls 157 located in the splined collar 154, displaces the latter to the left until it engages the splined end 155 of the shaft 147 connected to the front differential; thus in such intermediate position of gear 152 drive is transmitted to all four wheels. By sliding the gear 152 to the extreme left it takes its drive from gear 141 and gear 150 is freed, thus driving all four wheels at a lower ratio.
Patent GB-636858-A (GB)
Title: An improved wall plug
IPC: F16B13/02
Filed: 1948-05-21
Abstract: <PICT:0636858/IV (a)/1> Wall plugs of the cross-section shown in the Figure are produced by extruding thermoplastic or thermosetting resinous material such as a polymer of ethylene or polyvinyl chloride.
Patent GB-848837-A (GB)
Title: Improvements in or relating to the production of synthetic elastomers
Inventor: HARTLEY FRANK DESMOND
IPC: C08G18/40
Filed: 1957-05-01
Abstract: In a process for the manufacture of elastomeric materials from a diisocyanate and a mixture of polyesters, polyesteramides or polyethers containing in addition to at least one component melting at a temperature of less than 160 DEG  C. at least one high-melting crystalline polyester or polyesteramide which melts at a temperature not less than 160 DEG  C. the diisocyanate and the other ingredients are mixed at a temperature not more than 30 DEG  C. below the melting point of the high-melting polyester or polyesteramide, and thereafter the mixture is cured at a temperature at least 20 DEG  C. lower than the mixing temperature. Preferably the low-melting polyester, polyesteramide or polyether has a melting point between 0 DEG  C. and 60 DEG  C.  The mixing temperature may be above the melting point of the high-melting component.  Suitable high-melting polyesters and polyesteramides are those derived from an aromatic acid, such as terephthalic, 4,41-diphenyl dicarboxylic, 4,41-diphenylethane dicarboxylic or isophthalic acid (with up to 50% of other acids) and glycols, amino alcohols and diamines.  The low-melting component may be a polyether, such as those described in Specification 733,624 or a substantially linear polyester or polyesteramide preferably of molecular weight 800 to 5000, e.g. polyethylene adipate, glutarate or azelate, polydiethylene glutarate or adipate, or polypentamethylene glutarate.  The proportion of high melting component may be 5 to 60% by weight. The amount of diisocyanate may be 5 to 100% in excess of that required to react with all the end groups of the polyester, polyesteramide and polyether.  Diphenylmethane, naphthalene, phenylene, diphenyl, dimethyl-diphenyl, diphenylethane, toluene, dimethyl - diphenyl - methane and dibenzfuran diisocyanates are specified.  Curing is usually effected at 70 DEG  to 150 DEG  C. Curing catalysts such as tertiary amines and fillers such as carbon black, iron oxide, glue, blanc fixe, whiting, inorganic or organic pigments and plasticizers can be added.  Specification 765,745 also is referred to.
Patent GB-659359-A (GB)
Title: Improvements in burr-drills
IPC: A61C3/02
Filed: 1949-05-24
Abstract: 659,359. Dental drills. SANDVIKENS JERNVERKS AKTIEBOLAG, and AKTIEBOLAGET DENTATUS. May 24, 1949, No. 13859. Convention date, July 9, 1948. [Class 81(ii)] In a dental drill comprising head, shank and shaft portions 4, 5, 6, the head and shank are formed of a single piece of sintered hard metal, e.g. metal of the hard carbide groups, which is fastened to the shaft, consisting of a more easily workable material, by brazing, welding or the like. The shank piece may be fastened to the shaft by a plane brazed seam or the shank may be countersunk into the shaft and brazed or the method shown in Fig. 3 may be adopted.
Patent GB-958491-A (GB)
Title: Improvements in or relating to portable shelters
IPC: E04H15/54
Filed: 1960-04-20
Abstract: 958,491. Laminates. G. INGRAM. Feb. 21, 1961 [April 20, 1960], No. 13864/60. Heading B5N. [Also in Division E1] A portable self-supporting shelter comprises a sheet of flexible material such as rubber, plastics material, plastics-coated fabric or waterproof canvas having secured thereto rigid elements, for example of foamed plastics, wood, chipboard or ebonite, of trapezium section with adjacent inclined faces such that on shaping the sheet into a hollow body, elements inward, the inclined faces bear against one another and hold the body rigid. As shown, a sheet 10 has secured thereto rigid blocks 13 with adjacent inclined faces permitting the sheet to be rolled up, blocks outward, as in Fig. 4, or erected into a part-cylindrical shelter, Fig. 3, in which the inclined faces of the blocks bear against one another and hold the structure rigid. Flaps 11 serve to secure the shelter to the ground, e.g. by pegs, or hooks and eyelets 12. The open ends may be closed by separate panels. In a modification a part-circular sheet with flaps on its circumferential and radial edges, is provided with blocks in a concentric circular arrangement all adjacent edges of which are inclined, permitting erection of the sheet into a rigid closed hollow body the edge flaps of which may be laced together. The blocks may be replaced by metal trays with adjacent upturned edges inclined inwardly, or by similarly shaped wire frames.
Patent GB-279342-A (GB)
Title: Improvements in and relating to caps, covers, lids and the like closure devices for bottles and other receptacles
IPC: B65D53/00
Filed: 1927-05-24
Abstract: 279,342. Carl, F. May 24, 1927. Addition to 259,987. Materials, special, for parking discs and rings. -In making rubber latex packings or gaskets, for closures for bottles and other receptacles, according to the parent Specification, the fillers are omitted and thickened or concentrated vulcanized latex is used with or without an admixture of unvulcanized latex. Sulphur, zinc oxide, &c. may be used as vulcanizing agents. The composition may be applied to card, paper, &c. discs or rings, or the discs or rings may be impregnated with it.
Patent GB-119285-A (GB)
Title: Improvements in Spring Suspensions for Vehicles particularly Motor Vehicles.
Inventor: COLEMAN STEPHEN LEONARD CHAUNC
IPC: B60G21/05
Filed: 1917-09-27
Abstract: 119,285. Coleman, S. L. C. Sept. 27, 1917. Laminar springs.-A vehicle spring comprises upper and lower arms 260, 261 clamped together at their butt ends and pivoted to the chassis. The arms of the spring are preferably of unequal length so as to be asynchronous and the upper arm is curved more than the lower one which is almost straight under load. The upper arm is parallel to the side of the chassis, but the lower arm diverges outwardly as shown in plan. The two arms are clamped together by bolts with or without an intermediate plate 22, Fig. 5, formed with an eye at one end and a spacing-piece at the other. The effective length of each arm is shortened and the stiffness increased as the two arms approach one another under load. A plate 29, Fig. 5, in which the eye is formed may be secured to the lower arm as shown.
Patent GB-1310766-A (GB)
Title: Apparatus for the continuous cooling of objects to temperatures below 2.18k
IPC: F17C3/08
Filed: 1970-03-23
Abstract: 1310766 Refrigerating MAX-PLANCKGES ZUR FORDERUNG DER WISSENSCHAFTEN EV 23 March 1970 [12 April 1969] 14047/70 Heading F4H A cryostat for continuous cooling of objects to temperatures below 2À18‹ K. comprises a receptacle 2 for a liquid helium bath 3 which is surrounded by a vacuum chamber 12 and which has a base constituted by an evaporator element 1 of porous material of pore size less than 10<SP>-4</SP> cm. end of such length that, in operation, the liquid helium is completely evaporated on issue from the lower end 6 into the vacuum. The object is retained in a holder 19 of thermally conductive material either secured to the element 1 or to the container 8 of the vacuum chamber. The portion of the receptacle adjacent the element forms a heat exchanger 4 having apertured fins 5 over which the gaseous helium flows to an exhaust gas pipe 13 leading to a vacuum pipe, an adjustable pressure regulator 14 maintaining the pressure inside the chamber 12 at a level corresponding to the desired temperature of the object. The bath is replenished by a syphon 16 under the control of an expansion valve 17 and level detector 18.
Patent GB-1340094-A (GB)
Title: Motor units
IPC: F02B63/00
Filed: 1971-05-10
Abstract: 1340094 Engine driven compressors; cooling I.C. engines J H CEDERBAUM 10 May 1971 [2 Feb 1971] 14061/71 Headings F1B and F1N An engine driven compressor unit is enclosed in ducting for the passage of cooling and silencing air, the ducting comprising first ducting 3, 8, 16, 17, 18 which extends along both sides and one end of the unit, and second ducting 12 which extends over the other end top 9 of the unit. The arrangement is such that air is drawn through perforated walls 10, 11 by a fan and flows along the sides to the end wall 6, through a compartment 4 containing the unit, out through a grill 5, and finally through the duct 12 to atmosphere. The engine's exhaust pipe 13 is disposed in the duct 12. If the compressor unit is of conventional construction, in which the grill 5 normally constitutes the inlet for cooling air, re-positioning or reversing of its fan is necessary. The side walls 17 of the first ducting are foldable to provide access to the unit.
Patent GB-553100-A (GB)
Title: Improvements in or relating to the stabilisation of hydrocarbon distillates by fractional distillation
IPC: C10G7/02
Filed: 1941-11-03
Abstract: 553,100. Distilling hydrocarbons. STANDARD OIL DEVELOPMENT CO. Nov. 3, 1941, No. 14133. Convention date, Nov. 9, 1940. [Class 32] Hydrocarbon distillates, e.g. naphthas, gasolines and gas oils, are desulphurized and stabilized by distillation in two successive stages, the second stage being conducted at higher temperatures and pressures than the first, and the liquid passing to the second stage being preheated by the hot overhead condensate and bottoms from the second stage. Cracked naphtha from a tank 1 is passed through line 4 to the first tower 5, the bottom of the tower being maintained at 250-300‹ F. by circulating the naphtha through a heater 9. Gases are discharged through condenser 12 to vessel 14 where gases are removed through line 15 and condensate through 16. The degassed naphtha is fed through line 17 to the second tower 18 maintained at 400-450‹ F. by circulating the bottoms through a coil 24 in a heater 29, and additional heat is imparted thereto (a) by passage through a heat exchanger 19 where it receives heat from the light fraction distilled off from the top of the tower and passed through condenser 36, separator 38 and line 42, 43, to the heat exchanger 19 and thence through cooler 45 to storage, (b) from the bottoms removed through line 32 through heat exchanger 20 and thence through cooler 33 to storage.
Patent GB-835301-A (GB)
Title: Improved process for separation of normally solid polymers of 1-olefins from solutions thereof
Filed: 1957-05-03
Abstract: Normally solid polymers of 1-olefins are separated from solutions thereof, by dispersing the solution in water under such conditions of pressure and temperature as to maintain the solvent and water in liquid phase, the dispersion temperature being regulated so that the polymer is precipitated.  The solvent may then be removed from the two-phase liquid dispersion by flashing in a steam stripping zone containing hot water.  The polymer solution may be continuously sprayed into a confined stream of water and the resultant dispersion maintained under superatmospheric pressure to precipitate the polymer.  Cyclohexane is a preferred solvent and 130 DEG  F. the maximum temperature of the water dispersion.  The olefins are preferably polymerized using a low-pressure process.  Specified 1-olefins are ethylene, propylene, 1-butene, 1-pentene, 1-hexene, 1-octene, 4-methyl-1 - pentene, 4 - methyl - 1 - hexene, 5 - ethyl - 1-hexene, 6 - methyl - 1 - heptene and 6 - ethyl-1-heptene while paraffins and cycloparaffins are the preferred solvents.  Apparatus for carrying out the process is described.  Specifications 790,195 and 804,641 are referred to.
Patent GB-233905-A (GB)
Title: Improvements in or relating to acoustic horns or the like
IPC: G10K13/00
Filed: 1924-06-12
Abstract: 233,905. Abrahams, M. June 12, 1924. Drawings to Specification. Sound magnifying and directing appliances.- A horn is formed from a base of textile fabric, preferably having a heavy pile surface, shaped in a core to the required form, impregnated with a water-soluble filler, such as glue, dextrin, glue and dextrin mixture, or starch, which sets when dry, and then baked to harden the filler. The dextrin may be further hardened by silica, Portland cement, plaster of paris &c., added either before impregnating the fabric or applied on the top of the filling material in the form of powder. The horn may be finished with a coating of water paint.
Patent GB-216340-A (GB)
Title: Improvements in rotary intaglio or photogravure printing machines, or the like
IPC: B41F9/10
Filed: 1923-05-30
Abstract: 216,340. Penrose & Co., Ltd., A. W., and Owen, M. May 30, 1923. Inking-apparatus.-A device for lifting the doctor blade out of contact with a printing cylinder of an intaglio printing machine whilst the blade is passing the gap in the cylinder in which the ends of the printing surface are secured, and,. it may be, for a further period whilst the sheet is being taken off the impression cylinder and the printing cylinder is not printing, comprises a lifting arm carrying a roller engaging a earn rotated synchronously with the printing cylinder, the roller being adjustable in the arm to vary the timing of the lift. The doctor blade G is carried by a bracket g fastened to a loose shaft H and is pressed against the printing cylinder A by a weighted arm secured on the end of the shaft H. The blade is lifted to pass the cylinder gap a by a cam C on the cylinder shaft B engaging a roller E carried by an arm D pivoted about a shaft K and provided with a flat f engaging an adjusting screw F in a bracket h secured to the shaft H. A slot d in the end of the arm D enables the spindle e of the roller E to be adjusted for varying the timing of the lift. In the arrangement shown in Fig. 3, comprising a printing cylinder A half the diameter of the impression cylinder M so that the latter completes one revolution whilst the former makes two, the second of which is idle to enable the gripper N to release the sheet and take up another, the scraper G is lifted during the idle revolution in addition to the lift for passing the gap a. As before, the spindle e of the roller E is adjustable in the slot d, and the shaft m is provided with a fixed cam O adapted to lift the blade G off the cylinder A for the non-printing revolution and with an extension P adjustable by a slot-and-screw connection p.