baber/WOPTO huggingface dataset:
Patent GB-199170-A (GB)
Title: Improvements in rotary blowers and the like
IPC: F04C18/34
Filed: 1922-03-27
Abstract: 199,170. Fell, L. F. R. March 27, 1922. Regulating.-A rotary pump suitable for supplying air to aircraft engines is fitted with an adjustable disc or cylindrical valve 16 having ports 22, 23 for connecting the inlet and outlet in the pump casing to varying points in the working space in order to vary the delivery pressure or quantity, and with recesses 24, 25 to short-circuit the inlet and outlet.. An outwardly-sliding vane type of pump is shown in Fig. 2. The pump is geared to the engine, and at part throttle openings the disc valve connects the inlet to the top of the inlet side of the crescent-shaped working space, so that air drawn in expands in the pump and relieves the gearing of strain. At full throttle openings at ground level, the inlet and outlet are connected by the recesses 24, 25 which short-circuit the pump. At altitudes, the disc valve connects the inlet to the bottom of the inlet side and the outlet to the top of the outlet side of the crescent-shaped working space, so that the air is compressed and a full air charge is delivered.
Patent GB-1489246-A (GB)
Title: Organophosphonic acid esters and their partial and complete hydrolysates
IPC: C09D5/08
Filed: 1974-08-30
Abstract: 1489246 Phosphonate esters and their hydrolysates DYNAMIT NOBEL AG 30 Aug 1974 [1 Sept 1973] 08889/77 Divided out of 1489241 Heading C2P The invention comprises (a) phosphonate esters having the formulµ wherein R<SP>1</SP> is a C 1 -C 12  alkyl group optionally interrupted by one or more hetero atoms or radicals and optionally containing one or more halogen substituents and (b) partial and complete hydrolysates of said esters, such hydrolysates containing free phosphonic acid groups formed by hydrolysis. The esters may be obtained by appropriate methods described in parent Specification 1,489,241 and examples are given for the production of compounds of each formula in which each R<SP>1</SP> is ethyl. The products are useful for increasing the resistance to corrosion of metal surfaces and for increasing the adhesion of organic materials to metal surfaces.
Patent GB-1120035-A (GB)
Title: Improvements in or relating to ladders
Inventor: MORRIS DAVID RICHARD
IPC: E06C7/08
Filed: 1964-09-25
Abstract: The subject-matter of this Specification is identical with that described in Specification 1,120,034 but the claims differ.
Patent GB-1382245-A (GB)
Title: Book cases or book shelving
IPC: A47B57/58
Filed: 1971-04-07
Abstract: 1382245 Shelf partitions T DOYLE 23 June 1972 [7 April 1971] 9002/71 Heading A4B A book case or the like includes upper and lower walls or shelves 1, 2 provided in their facing surfaces with longitudinal grooves 3 in which the upper and lower edges of a plastics partition strip 4 are slidably engaged. The strip 4 is sufficiently pliable to be sprung into the grooves.
Patent GB-637629-A (GB)
Title: Improvements in and relating to mobile shovels
IPC: B66F9/19
Filed: 1948-03-30
Abstract: 637,629. Load-handling machines. FENN, F., and I. T. D., Ltd. March 30, 1948, No. 9021. [Class 78 (iii)] In an industrial self-propelled truck of the " high-lift " type, a shovel, which is pivoted to a carriage slidable on the upper section of the usual telescopic mast, is rocked by a hydraulically operated piston and cylinder link which is pivoted at one end to the shovel and at the other to the carriage. The shovel 30, Fig. 1, is pivoted in brackets 41 projecting from a frame 31 which is bolted at its lower end to a carriage 15, Fig. 5. This carriage is provided with rollers, which run in the channelled sides 8 of the upper section 9 of the mast, and is secured to chains 28 which pass over sprockets on a crosshead on the piston rod 3 used for raising the mast and are anchored to the upper part of the fixed lower mast section. A lug 35a on the shovel is pivotally connected to the piston rod 33 of a double-acting cylinder 32 which is pivoted at 34 to a bracket 35 on the frame 31. Oil under pressure is fed to either end of the cylinder 32 through a control valve and flexible pipes 46, 47 passed over sheaves 48 at the top of the section 8.
Patent GB-1167323-A (GB)
Title: Specimen Injector for Electron Microscopes
Inventor: FAIRBANKS JOHN RIDER
IPC: H01J37/18
Filed: 1966-08-10
Abstract: 1,167,323. Electron microscopes. RADIO CORPORATION OF AMERICA. 10 Aug.. 1966 [24 Aug., 1965], No. 9047/69. Divided out of 1,167,322. Heading H1D. The stage 16 of an electron microscope comprises a hinged member 17 adapted to receive a specimen holder 14 and rotatable between two positions in one of which (shown in chain lines) the holder 14 lies in the operative position within lens 20 and in the second of which the holder lies opposite the end 92 of a specimen injector mechanism. The specimen holder and hinged member have complementary conical surfaces 40. The hinged member is actuated from the exterior of the microscope by means of a rod 46 and linkage 52, 54. The injector rod is adapted to grasp the specimen holder 14 and transport it to the interior of a rotatable turret 66 mounted on the wall 10 of the microscope. This matter is described in Specification 1,167,322.
Patent GB-550026-A (GB)
Title: Improvements in and relating to electric circuit breakers
IPC: H01H9/44
Filed: 1941-07-17
Abstract: 550,026. Electromagnetic switches; arcrupturing. BRITISH THOMSON-HOUSTON CO., Ltd. July 17, 1941, No. 9052. Convention date, July 17, 1940. [Class 38 (v)] The fixed contact 20 of an electromagnetic contactor or other switch is fixed, as by a screw 22, to a supporting member 21 of copper or like metal which is secured, as by screws 25, to an insulating base 14 and bent round so as to enclose a blow-out coil 27 the ends of which are secured respectively to the member 21 and a terminal 28 also secured to the base ; the polepieces 31, 32 of the blow-out magnet are welded to its core 30 and rest tightly against the edges of the member 21. The movable contact 33 is spring-mounted on a member 37 rotatable about an axis 42 and can itself pivot relatively to the member 37 about a projection 40. Its end 44 also possesses appreciable mass. An arc-chute member 67 with side barrier walls co-operates with the base and with barriers 72 on the member 37 to enclose the contacts &c. The arc is adapted to be driven from the contacts on to the support 21 and an arcing contact 76b and out through holes in the chute 37 which, when there are several pairs of contacts as in a three-phase circuit, may be staggered, Fig. 9 (not shown).
Patent GB-555779-A (GB)
Title: Improvements in the mounting of piezo-electric elements
IPC: H03H9/05
Filed: 1942-07-01
Abstract: 555,779. Piezo-electric crystal mountings. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. July 1, 1942, No. 9109. Convention date, July 1, 1941. [Class 40 (v)] A piezo-electric crystal 1 having electrode coatings 2, 3 is clamped between members 4, 5 which engage the crystal at areas 6, 7 surrounded by grooves 8, 9 to localize the clamping effect. A pin 10 extending from member 5 into a recess in the crystal serves for centring the crystal. In a modification, Fig. 2 (not shown) the members 4, 5 have hollows for engaging over the raised portions 6, 7. In a further modification, Fig. 3 (not shown) the plates 13 between which the clamped crystal is mounted form the electrodes thus providing a " pressure-gap " mounting.
Patent GB-1491430-A (GB)
Title: Drawing apparatus
IPC: B43L13/00
Filed: 1976-03-08
Abstract: 1491430 Tracing profiles; draughting machines FORD MOTOR CO Ltd 8 March 1976 [28 June 1975] 09120/76 Headings G1M and G1X Apparatus for producing a profile drawing of a model 10, comprises a drawing board 4 having a magnetic sheet lining, a frame 1 to which is attached a beam 2 comprising a guide 3 carrying a displaceable slide 5 which supports a tracer arm 7 having at one end a follower 9 and at the other end a spring- loaded drawing stylus 8 and a magnet. Figure 1 shows an apparatus comprising two beams, arms, boards and guides for producing two separate profile drawings. Each tracer arm 7 is movable within a guide 6 and its follower 9 is moved by hand or electric motor over the model 10, the friction resulting from the attraction between the magnets (16), Fig. 3 (not shown) and the magnetic lining (15) serving to damp irregular movement as well as holding the stylus in contact with paper (11) on the drawing board to produce the profile 12. The follower may comprise a magnet for use with models of magnetic material.
Patent GB-108333-A (GB)
Title: Apparatus and Method for the Conversion of Hydrocarbons.
Inventor: DEHN FRANK BERNHARD
IPC: C10G9/42
Filed: 1916-06-29
Abstract: 108,333. Dehn, F. B., (Synthetic Hydro- Carbon Co.). June 29, 1916. Hydrocarbons, cracking. - Apparatus for converting heavy hydrocarbons into gasoline, benzene, toluene, or other light hydrocarbons comprises an externally-heated annular converter 1 to which the hydrocarbons are admitted in the form of vapour, formed, say, by passing the liquid hydrocarbon on to a packing 3, together with means for rotating the inner wall 5 of the converter 1. The inner wall 5 is fitted with chains 6 or other means for wiping carbon deposits from the outer wall. Angle-bars are fitted on the inner wall to bring the vapours into contact with the hot outer wall. A chamber 7 fitted with a baffle 11 is provided at the lower end of the converter to separate the carbon from the gases and vapours. The carbon is discharged into a collecting-chamber 12 upon the opening of a valve 14. The vapours are led by a pipe 8 to a condenser 9. Gasoline is produced from kerosene at about 500‹ C., and aromatic hydrocarbons at 750‹ C., pressures of about 100 lb. per sq. in. being employed.
Patent GB-568414-A (GB)
Title: Improvements in machines for grinding twist drills
IPC: B24B3/24
Filed: 1943-06-08
Abstract: 568,414. Grinding twist drills. TRIPPEL, K. June 8, 1943, No. 9192. [Class 60] A machine for grinding twist drills, whereby drills of various diameters may be ground, comprises a rotatable drum having in its wall a number of bores, to receive the drills, arranged obliquely to the axis of the drum, and adapted to be moved past the periphery of a grinding- wheel to effect the sharpening of a drill. The machine is shown as intended for grinding drills having narrow lips or chamfers 28, forming the cutting-edges, and adjoining hollowground parts 29 forming the clearance, and comprises a grinding-wheel 24 on a base 1, the grinding spindle carrying also a wheel 40 for thinning the drill points &c. On the base 1 is movable, to and from the wheel 24, a carriage 2, traversed by a spindle 4 engaging a nut 3 and having a hand wheel 5, and movable on the carriage 2, at right angles to the direction of movement thereof, is a plate 27 actuated by a handle 9 on a shaft 8 carrying a screw 7 engaging a rack on the plate. On the plate 27 is a pivot 13 for a swivel member 10, the angle of which is set by a scale 6 and nuts 15, and in a bracket on the member 10 is removably mounted the axle 11 of a drum 12 ; the drum 12 has grooves 16 engaged by a spring pin 17 so that the drum may be turned into and locked in any required position. The drum has a cylindrical outer surface and a conical inner surface, and has therein a series of sets of bores 18 ... 22 perpendicular to the inner surface to receive drills 23 of various diameters, the drill points being located by stops 32 fixed to the drum. In order that the amount ground from a drill may be determined, a graduated disc 33, which co-operates with a pointer 37, is provided on a hub on the carriage 2, and is held in adjusted position by a spring 34 ; the disc 33 may be coupled to rotate with the shaft 4 by a knob 36 with a conical axle, mounted adjacent the hand wheel 5 and adapted to be depressed to cause two clamping bolts 38 to engage the inner wall of the disc 33. In operation, the drum 12 is turned to bring the drill axis horizontal and is locked in position by the pin 17; the two drill lips 28 are ground to the same extent by the use of the disc 33 &c. described above. The drum 12 then is turned one groove and the hollow-ground clearance parts 29 are ground. The grinding- wheel 24 is trued by means of a diamond tool placed in a bore of the drum 12, which is moved across the wheel by the handle 9.
Patent GB-582019-A (GB)
Title: Improvements relating to the manufacture of organic pigments and moulding powders
IPC: C09B67/20
Filed: 1944-05-13
Abstract: Finely-divided acetals are obtained by adding a finely-dispersed aromatic aldehyde of the benzene or naphthalene series to an aqueous solution of polyvinyl alcohol containing not more than 10 per cent by weight of the total and reacting at a temperature less than 80 DEG C. in the presence of an acid catalyst present in low concentration. Specified aldehydes are benzaldehydes, chlor - benzaldehydes, nitro - benzaldehydes, tolualdehydes and naphthalde hydes.  Acid catalysts given are hydrochloric, sulphuric, oxalic and chloracetic acids, ammonium, zinc or aluminium chlorides.  The acetals may be dyed either during or after preparation with either basic dyestuffs or those containing basic groups.  Emulsifiers such as sodium dioctyl disulpho succinate, sodium 1 - isopropyl - 2 - naphthalene sulphonate, the sodium salt of oleyl sulphate and the hydrochloride of diethylamino-ethyloleylamide, may be present. Titanium oxide, polymethyl methacrylate, monomethylol urea and benzoic acid, triacetin and benzyl alcohol may be added to the acetals.  Pigments and moulding powders are specified uses.
Patent GB-138495-A (GB)
Title: Improvements in or relating to razors
IPC: B26B21/02
Filed: 1919-04-11
Abstract: 138,495. Hochleichter, J. April 11, 1919. Stropping-apparatus.-A device for attachment to a razor while it is being set consists of a strip a of thin springy metal, which is approximately V- shape in cross-section and has inturned portions a<1> adapted to grip the razor blade. The parts a' may be shorter than the bcdv of the device.
Patent GB-788350-A (GB)
Title: Improvements in or relating to a process for the production of glycidyl ethers of polyhydric phenols
IPC: C07D301/28
Filed: 1956-03-26
Abstract: In the production of polyglycidyl ethers of polyhydric phenols by reacting the polyhydric phenol with epichlorhydrin in the presence of alkali, easier washing of the resinous product to free it from salt is obtained by carrying out the reaction in presence of a secondary monohydric aliphatic alcohol devoid of reactive groups other than hydroxyl.  The secondary alcohols are preferably liquid at 20 DEG  C. and contain the alcoholic group linked to a saturated secondary C atom.  An alkanol-2 having 3-8 C atoms is preferred.  Those specified are propanol-2, butanol-2, pentanol-2, pentanol-3, 3-methylbutanol-2, hexanol-2, heptanol-2, 2,4-dimethylpentanol-3, octanol-2, 2-methylheptanol-2, 4-methylheptanol-2, 2,5 - dimethylhexanol - 3, 2-methyl undecanol-3, 2-methylundecanol-5, dodecanol-2, tetradecanol-7, 9-methyl-pentadecanol-7, buten 3-ol-2, 3-methylbuten-3-4-methylpenten-3-ol-2, 2-methylhepten-6-ol-4.  In examples: (1) a mixture of 1009 parts butanol-2, 191 parts epichlorhydrin and 300 parts bis-phenol were heated to 50 DEG  C. and 90.9 parts NaOH added as a 20 per cent aqueous solution; after refluxing for 1 hour the aqueous and organic layers were separated and the latter neutralized with sodium dihydrogen phosphate, dehydrated by azeotropic distillation filtered and distilled to remove alcohol.  A glycidyl ether having an epoxy equivalent of 470 was obtained.  Other examples describe similar reaction employing (Examples 5-6) 4-methylpentanol - 2, (Examples 7-12) propanol - 2. U.S.A. Specifications 2,031,586, 2,317,607 and 2,321,620 are referred to.
Patent GB-125404-A (GB)
Title: Improvements relating to Telescopic Sights and the like.
Inventor: BAILEY FREDERICK GEORGE GLYNN
IPC: G02B23/08
Filed: 1916-07-03
Abstract: 125,404. Bailey, F. G. G. July 3, 1916. Addition to 8059/15. Periscopes. - In a dial-sight the central element, consisting of a rigidly - supported main tube a, carries upon it a long cowl-bearing sleeve g, having cast in one with it a large degree-scale flange i, the worm-wheel g<1> preferably forming part of the same casting. Bearing-surfaces a<1>, a<1> are provided on the main tube a for the sleeve g and below the lower bearings is sweated or brazed a flange e to which is screwed a casting f carrying the worm-shaft h for adjustment of the cowl-head. The sleeve g has a downward extension g<2>, which forms the lower bearing on the main tube and is threaded to receive washers g<3> for retaining the sleeve against endlong movement. An offset branch tube b for the eye-piece and reflecting-prisms is formed with a vertical tubular socket o<1> rigidly secured to the lower end of the main tube a. A reflecting- prism system is mounted in the tube b on a block d formed with a saddle piece d' screwed to the tube b over an aperture for introducing the prism, means being provided for adjusting the saddlepiece before it is permanently fixed in position.
Patent GB-753164-A (GB)
Title: Improvements in or relating to coated particles of sand and method of coating same
IPC: B22C1/02
Filed: 1954-03-30
Abstract: Shell moulds are made from sand, the grains of which are provided with an inner coating of thermosetting resin and an outer coating of a waxy material.  Waxy materials specified are microcrystalline or other paraffin waxes or synthetic waxes, e.g. the substituted polyamide of stearic acid known as "Acrawax C."; polyethylenes of medium molecular weight; methylene bis-stearamide; calcium, lithium and zinc stearates.  Amounts from 0.5 to 15 per cent per weight of resin may be employed.  Synthetic resins specified are liquid novolaks formed by reacting phenol and formaldehyde in molar proportions of 1 to 0.5-0.725 and having a resin content of 70-80 per cent as described in Specification 753,162, or solid novolaks obtained by reacting 0.75-0.9 mols formaldehyde per mol. phenol; hexamethylene tetramine being added in sufficient proportions to render the resins thermosetting on heating; alternatively phenol-aldehyde resins which harden without addition of hexamethylene or other hardener may be employed.  The coated particles may be given a preliminary heating, followed by cooling so that the resin is partially hardened as described in Specification 753,163; 4540 gs. washed foundry sand were heated to 285-290 DEG  C. in a muller and mixed therein with 125 gs. liquid novolak resin and the mixture mulled for 50 seconds, 12 gs. hexamethylene tetramine and 2 gs. "Acrawax C" were added and the mixing continued for about 4 minutes until the resin coated sand had cooled to below its modified melting point.  Further mixing for 5 minutes broke up the mixture into a freely flowing material of which the melting point of the resin was found to be 95 DEG  C. as compared with 88 DEG  C. when the wax was omitted.
Patent GB-290017-A (GB)
Title: Improvements in, or relating to, screwing dies
IPC: B23G5/10
Filed: 1927-04-06
Abstract: 290,017. Harper & Co., Ltd. J., and Collett, M. April 6, 1927. Screwing dies and die-heads; stocks and dies. - An integral split screwing die C is provided on one or both ends with a tapered surface h adapted to engage a bevelled surface j on a ring E screwing on the exterior of the head A. The die rests in a circular recess B of the head with its forward face projecting considerably beyond the head so that its cutting diameter may be adjusted by the ring E without endwise movement of the die within the head. Radial holes in in the ring provide for its rotation and rotation of the die in the head is prevented by axially arranged dowel pins engaging semi-circular recesses in the die and head. The head may be provided with a shank H for use in a screwing- machine or with radial handles and when the die is tapered at both ends it may be secured in the head. A recess D in the head allows the work to penetrate beyond the die.
Patent GB-849906-A (GB)
Title: Improvements relating to postal boxes
Inventor: HART STANLEY HORACE
IPC: B65D5/42
Filed: 1956-03-27
Abstract: 849,906. Cartons. SETTEN & DURWARD Ltd. Feb. 13, 1957 [March 27, 1956], No. 9436/56. Class 18. A postal box for wedding &c. cake comprises a body 1 formed from a blank of greaseproof paper board and having an integral closure flap 3, a removable lid 2, fixing flaps 8, glued to the inside of end walls 7, and a paper strip 10 gummed underneath the base with extensions 11 which can be gummed over the sides of the lid. A stamp tag 12 is fastened beneath the body by the strip 10 and the flap 3 can support a compliments card 4.
Patent GB-540125-A (GB)
Title: Metalliferous substantive dyestuffs
IPC: C09B35/40
Filed: 1939-03-28
Abstract: 540,125. Dyes and dyeing. POTTS, H. E. (Compagnie Nationale de Matieres Colorantes et Manufactures de Produits Chimiques du Nord Reunies Etablissements Kuhlmann). March 28, 1939, No. 9591. [Classes 2 (iii) and 15 (ii)]         #X Trisazo dyestuffs of the type D wherein D         #Y, represents benzidine or a non-sulphonated substitution product thereof, X represents a coupling component carrying an o-hydroxycarboxylic grouping and Y represents a dyestuff of the type are converted into metal complex compounds. The metallizing may be applied to the dyestuff in substance or on the fibre or the component Y          # X. may be metallized before coupling with D            # Specified metals are copper, nickel and cobalt and the metallizing agents may be the finely divided metals, their oxides, hydroxides, salts or oxide complexes such as ammoniacal cupric oxide or Fehling's solution. A plurality of metal salts of different metals may be used. In examples : (1) the monoazo dyestuff, 6-nitro- 2-aminophenol-4-sulphonic acid - resorcinol, is coupled in sodium carbonate solution with the product form tetrazotized benzidine (1 mol.) and salicylic acid (1 mol.), whereupon a solution of copper sulphate is added and the mixture heated for 1 hour at 90‹C. ; the copper complex compound obtained dyes cotton, from a sodium carbonate bath, purple brown, very fast to light; alternatively, cotton may be dyed with the uncoppered dyestuff and the dyeing after treated with copper sulphate solution ; (2) the initial monoazo dyestuff in (1) is treated in boiling ammoniacal solution with a solution of copper sulphate and the suspension of the resulting copper complex compound is stirred into a suspension of the product from tetrazotized o-tolidine (1 mol.) and o-cresotinic acid (1 mol.), the mixture being heated to 50‹C. and neutralized with acetic acid ; the product dyes cotton purple brown, very fast to light and to washing ; the fastness to light may be further improved by a further coppering in the dyebath; (3) the initial monoazo dyestuff in (1) is metallized with a solution containing copper and nickel sulphates and cobalt nitrate and the resulting metal complex compound is coupled with the product from tetrazotized benzidine (1 mol.) and o-cresotinic acid (1 mol.) ; the product dyes vegetable fibres violet brown, very fast to light. Specifications 12932/15, 101,601, [both in Class 2 (iii)], and 532,261 are referred to.