baber/WOPTO huggingface dataset:
Patent GB-674453-A (GB)
Title: Liquid for treating tissue in histologic processing
Inventor: FERRARI ANDRES
IPC: G01N1/30
Filed: 1950-04-28
Abstract: 674,453. Preparing specimens for microscopic examination. TECHNICON CHEMICAL CO., Inc. April 28, 1950, No. 10552/50. Class 97 (i). A liquid for treating histological tissue in the processing thereof for microscopic examination comprises as active ingredient diethylene glycol monoethyl ether acetate in the presence of an alcohol such as isopropanol, ethyl or methyl alcohol which is a liquid at room temperature. The proportions may be of from 2 to 6 parts by volume of the alcohol to about 6 parts by volume of diethylene glycol monoethyl ether acetate and the liquid may be used in the removal of paraffin from the cut specimens.
Patent GB-729557-A (GB)
Title: Vitamin b
Inventor: HEATHCOTE JOHN GODFREY
IPC: C07H23/00
Filed: 1952-04-28
Abstract: Crude Vitamin B12 in aqueous solution, e.g. a Streptomyces griseus culture broth elaboration product, is purified by reacting with a substance yielding cyanide ions, e.g. hydrocyanic acid gas, potassium, sodium, ammonium, calcium, or barium cyanide, the purity of the Vitamin B12 being not in excess of about 1 per cent, the concentration of vitamin B12 in the solution being not in excess of about 100 micrograms/ml., the concentration of cyanide ions in the solution being in the range of about 0.2 to 0.6 gram-mols. per litre, and the pH of the solution being not less than 6, extracting the Vitamin B12-cyanide complex so formed into normal butyl alcohol in the presence of a salting-out agent, e.g. sodium sulphate, ammonium sulphate or magnesium sulphate, thereafter decomposing the Vitamin B12-cyanide complex by adjusting the pH value of the solution to an acid value and recovering the Vitamin B12.  The normal butyl alcohol and the salting-out agent may be introducing during or after the formation of the Vitamin B12-cyanide complex.  The extraction into normal butyl alcohol may be effected in a continuous manner. Specification 727,146 is referred to.
Patent GB-106869-A (GB)
IPC: H01H71/68
Abstract: 106,869. Igranic Electric Co., (Cutler- Hammer Manufacturing Co.). June 9, 1916. Electro - magnetic switches. - An electromagnetic lock - out switch is provided with a magnet 15 whose magnetic circuit comprises divided flux paths, the main path passing through the armature in the open position of the switch, and a branch path passing between a bent-over extension 12 of the magnetic frame 9 and the core head 14 as shown in Fig. 3a. The flux through the main path, only, is active initially to attract the armature which, as it approaches the core-head, diverts the branch flux through it so that the two portions of the flux act cumulatively to produce the final closure and to hold the switch closed. The construction also affords a proper pull characteristic for the closing winding without a reduction of the cross-section of the magnetic circuit, a portion of the flux, in the open portion of the switch, passing through the magnetic circuit without affecting the armature. The invention is shown applied to a switch of the kind described in Specification 22435/14. The extension 12 is arranged close to the pivot 5 so as to reduce the effect on the armature of any flux passing from the extension direct to the armature in the open position of the switch.
Patent GB-639447-A (GB)
Title: Improvements in or relating to jewellers' rolling mills
IPC: B21B1/40
Filed: 1948-04-19
Abstract: 639,447. Rolling. STROBEL, J. L. J. April 19, 1948, No. 10794. Convention date, April 23, 1947. [Class 83 (iv)] The shaft of each roll 1, 2 of a jeweller's rolling mill revolves at each end in a bearing made of two portions, two springs 13 being placed between the lower half-bearing 5 of the upper roll and the upper one 7 of the lower roll, and these half-bearings and the lowest bearing 8 being mounted slidingly in guiding grooves in the frame 12 of the mill. The lower halfbearings 8 are carried on screws 15 which are adjusted by totally-enclosed worm-gearing 16, 17 to vary the pass. The lower roll 2 is rotated by a hand crank 9.
Patent GB-1311036-A (GB)
Title: Process for preparing halogenated styrene halocaclopentadiene adducts
Inventor: MAUL J J
IPC: C08K5/03
Filed: 1971-04-22
Abstract: 1311036 Halogenated styrene halocyclopentadiene HOOKER CHEMICAL CORP 22 April 1971 [29 June 1970] 10834/71 Heading C2C Halogenated styrene halocyclopentadienes of the Formula I: wherein R and R<SP>1</SP> are each hydrogen atoms or C 1 -C 6  alkyl radicals; X is a fluorine chlorine or bromine atom; Y is a C 1 -C 10  alkyl radical, a C 1 -C 10  alkoxy radical, a C 1 -C 10  haloalkyl radical or a halogen atom, the halo-group and the halogen each being fluorine, chlorine or bromine; a is 3 or 4 and b is 0 or 1; is prepared by (i) reacting in a first vessel a halogenating agent with a styrene halocyclopentadiene adduct of the Formula II: (ii) charging a second vessel with the same adduct of Formula II, (iii) passing unreacted halogenating agent from the first to the second vessel, (iv) recovering the halogenated product from the first vessel, (v) introducing into the first vessel at least a portion of the mixture from the second vessel, (vi) recharging the second vessel with the same adduct of Formula II and (vii) repeating steps (i) to (vi). The compounds of Formula I may be used as fire retardant additives for polymers.
Patent GB-288586-A (GB)
Title: Improvements in or relating to pumps
IPC: F02M37/04
Filed: 1928-04-12
Abstract: 288,586. Berdon, A. E. April 12, 1928. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 13, 1928. Cam-and-lever actuated pumps; diaphragm pumps; delivery reservoirs; regulating delivery by yielding wall in pump barrel.-A fuel pump having a constant stroke and a variable delivery comprises a diaphragm mounted between the two parts 1, 2 of a pump casing and reciprocated by a rod 8 operated by a lever 9 and cam 12. On the two sides of the diaphragm are arranged two cupped discs 26, 27 pressed towards the diaphragm by springs 30, 31. If excessive pressure occurs in the pump chamber, the diaphragm yields and enlarges the chamber, and raises the disc 26. If excessive suction occurs, the diaphragm moves in the opposite direction and displaces the disc 27. In the form shown in Fig. 4 the pump delivers through a pipe 54 to a reservoir 51 from which the fuel passes to the carburettor through an overflow pipe 53 and a connection 52. If the supply to the pump fails, the reserve of fuel in the reservoir may be allowed to pass the carburettor by opening a normally spring-closed valve 56. In a form shown in Fig. 6, the diaphragm is replaced by a piston 104, and the yielding element is an annulus 105 mounted between springs 108, 109 on the piston rod. Specification 292,203 is referred to. According to the Specification as open to inspection under Sect. 91 (3) (a), regulation may be effected by a second spring-controlled diaphragm arranged in a chamber open to the pump chamber. This subject-matter does not appear in the Specification as accepted.
Patent GB-1506665-A (GB)
Title: Process for producing permeable membranes
IPC: C08J9/26
Filed: 1976-03-18
Abstract: 1506665 Permeable membranes NIPPON OIL CO Ltd 18 March 1976 [20 March 1975] 10937/76 Heading B5B  Ninety to 30 parts by weight of at least one stretchable thermoplastic linear polymer (A) is mixed in the molten state with 10 to 70 parts by weight of at least one compound (B) having partial compatibility with (A) and selected from synthetic polymers or oligomers containing at least 20C, natural organic polymeric compounds containing at least 20C, fatty acids containing at least 16C or esters or salts thereof the total amount of (A) and (B) being 100 parts, the mixture is formed into a film, sheet or hollow article in which (A) and (B) are present in the partly mutually dissolved state, the article is treated with a good solvent for component (B) but a poor solvent for component (A), dried and stretched to 50 to 1500% mono- or biaxially. The drying may be effected until the solvent content is 50% by weight or less and the solvent treatment may be carried out until 30 to 100% (B) is removed. Stretching is effected either in the free state or under restraint in the other direction at above 0‹ C. but below the melting point of the article and biaxially at a temperature below the melting point but not below a temperature 50‹ C. lower than the melting temperature.
Patent GB-542490-A (GB)
Title: Improvements in and relating to fluxes for welding aluminium and its alloys
IPC: B23K35/36
Filed: 1940-06-27
Abstract: 542,490. Fluxes. ORMISTON, H. O. June 27, 1940, Nos. 10968 and 12009. [Class 82 (ii)] Fluxes for use in connection with the welding or jointing of bodies formed of aluminium or aluminium alloys contains lithium chloride, an aluminium salt of an organic acid such as aluminium acetate with or without one or more of cryolite, an alkali metal chloride other than lithium chloride, and zinc chloride. The flux may also contain a fat acid, i.e. an acid the glyceride of which is present in an oil or fat such as stearic acid. When the flux is used with water, it contains zinc chloride but not if used in powder form. In an example, a flux contains 18 parts by weight of lithium chloride, 37 of cryolite, 10 of aluminium acetate, and 35 of potassium chloride.
Patent GB-400225-A (GB)
Title: Improvements in pile fabrics and method of making the same
IPC: D03D27/00
Filed: 1932-04-18
Abstract: 400,225. Pile fabrics with coated backs. STEPHENS, A. J., 285, High Holborn, London.-(Collins & Aikman Corporation ; 51st Avenue, Philadelphia, U.S.A.) April 18, 1932, No. 11070. [Class 142 (iv).] In pile fabrics produced by coating the backing of a loosely woven pile fabric as described in Specifications 336,553, [Class 142 (iv), Woven fabrics &c.], and 371,817 so as to secure the loosely enmeshed pile threads firmly in the backing, an impregnating coating composition is used comprising a latex or latex compound fortified by the dispersion therein of a previously coagulated rubber provided with a colloid for forming a protective coating for the rubber globules. Thus crude or reclaimed rubber may be masticated with from 2-10 per cent of casein, saponin, rosin soap, or soapy vegetable extracts, and dilute latex or latex compound be added gradually. Vulcanizers, accelerators, and tempering ingredients may be added to the latex, or the coagulated rubber, or the mixture, to which organic solvents and emulsifying agents may be added, the organic solvents being subsequently segregated by evaporation. The latex which accelerates coagulation of the rubber dispersion and the coagulated rubber which retards coagulation are mixed in such proportions that the coating impregnates the backing of the fabric without penetrating through to the face thereof. The backing may comprise undyed cotton yarn, and the pile undyed yarn containing animal fibre. In an example given, a natural latex compound containing specified proportions of latex, sulphur, tetramethylthiuramdisulphide, phenyl-#-naphthylamine and zinc oxide is mixed with an equal part of a coagulated rubber dispersion containing specified proportions of pale crape rubber, tetramethylthiuramdisulphidephenyl-#-naphthylamine and zinc oxide and applied in specified amounts to a pile fabric woven from cotton warp and weft and from pile yarns made from mixed mohair and wool fibres, a coating machine as described in Specification 369,910 being used.
Patent GB-718425-A (GB)
Title: Improvements in or relating to refractor members for lighting fittings
IPC: F21V5/00
Filed: 1951-05-10
Abstract: 718,425. Street lamps. GENERAL ELECTRIC CO., Ltd., BEGGS, S. S., and ROWLANDS, E. May 7, 1952, [May 10, 1951.] No. 11070/51. Classes 75 (2) and 75 (4). A refractor member for a lighting fitting intended to provide a direction or directions of maximum light intensity has asymmetrical prisms, each having a primary face 111, Fig. 3, for refracting light from a source into or towards a direction of maximum intensity and a secondary face 112 for re-directing a part of the incident light, said secondary faces collectively being arranged to distribute light over a region or regions of lower intensity, the majority or all of said secondary faces being disposed at substantially equal angles of inclination, e.g. 15 degrees, to planes extending through the centre of the intended position of the light source and through the midpoints of the respective secondary working faces, and parallel to the edges joining the primary and secondary faces. In the bowl refractor, illustrated in Fig. 2, for use with a linear light source disposed on the axis thereof and comprising two superposed frusto-conical portions and a closed lower end, the upper frusto-conical portion having vertical prisms and the lower portion horizontal annular prisms, the vertical prisms 100a provide two main beams generally along two axes 110 subtending an angle of 170 degrees with regions of lower intensity between the two main beams. Except for those in the immediate vicinity of the axes 110 the prisms are asymmetrical as shown in Fig. 3. The angular spread of the light from each face 111 is approximately 30 degrees. The maximum radial thickness of the prisms increases with distance from the axes 110. Flat or frusto-conical faces 114 are interposed between at least some of the prisms. In an alternative fitting for use with a horizontal tubular light source the refractor may be formed as a dish having horizontal asymmetrical prisms.
Patent GB-154127-A (GB)
Title: Improvements in locks for pockets, bags and similar receptacles
IPC: A45C13/18
Filed: 1920-04-21
Abstract: 154,127. Wood, H. S. April 21, 1920. Stud-and-socket fastenings.-Bags, pockets, &c. are secured by the engagement of the head d of a stud preferably having a flat stem f, with a socket b from which it can only be released by pressure upon a stud n carried by the socket part. In the arrangement shown, the head d passes between, and is then held by, a pair of springs h, and is freed when the stud n is pressed in owing to a wedge-shaped head p thereon passing between the springs and separating them. A further spring then ejects the stud e.
Patent GB-390954-A (GB)
Title: Machine for grinding the threads of screw-cutting taps and the cutting edges and adjacent parts of other cutters
IPC: B24B19/02
Filed: 1932-04-19
Abstract: 390,954. Grinding screw-cutting taps &c. ATKINS, H. F., Old Fletton, Peterborough. April 19, 1932, No. 11124. [Class 60.] A machine for grinding the threads of screwcutting taps &c. wherein a rotating grinding wheel is automatically fed to the work while the tap is automatically rotated, the tap and wheel being relatively traversed, is distinguished by the provision of means for controlling the stop governing the grinding wheel consisting of a combination of levers co-operating with a relief cam and a cut cam. The tap a, Fig. 1 is held between a back centre c and a chuck d both carried in bearings, and both urged to the left by weighted cords c<4>, d<5> to hold a bearing ball d<8> on the chuck spindle in engagement with a cam e. The chuck spindle d<3> is rotated through variable speed gearing from a shaft g<2> driven by a hand-controlled expanding pulley g, and drives the cam e through two speed gearing including a gear wheel g<9>. The latter is fitted with a face cam i<7>, Fig. 5, which operates a lever i<6> actuating a pawl i4 to rotate a cam i<2> step by step. The cam i<2> is the cut cam and engages one end of a lever m, the other end of which is engaged by a stop o<2> actuated by a cam h on the end of the shaft g<2>, forming the relief cam. The lever m is centrally pivoted to the end of a lever n carrying the stop against which the pivoted or sliding carriage for the grinding wheel j abuts. At the end of each cut the wheel is moved out of operative position to allow the return of the tap for the next cut, by means of a cam-ended rod s operated through a lever t<2> by means of a cam t<5> on the face of the gear wheel g<9>, and the machine is stopped at the end of the complete operation by means of a cam v<3> on the face of the cut cam i2 engaging a retaining catch for the hand-lever v for operating the expanding pulley.
Patent GB-738784-A (GB)
Title: Homogenizing device for extruding machine
IPC: B29C48/67
Filed: 1953-04-22
Abstract: 738,784. Mixing-appliances. KRAFFE DE LAUBAREDE, L. M. H. April 22, 1953, No. 11143/53. Class 86. [Also in Group V] A mixing-device in an extrusion or injection moulding machine (e.g. for extruding large diameter tubes) comprises a casing 2 which may be heated, Fig. 1, containing two rotors 3, 4, each having grooves such as 6, 35 which intermesh with the corresponding blades such as 16, 25 on the other rotor. The blades are provided with angularly disposed, e.g. helical, grooves 44, Fig. 2, to allow the material to progress from inlet V to exit C. The clearance between the blades and the corresponding grooves decreases from inlet to outlet to cause progressive compacting of the material. Alternatively the grooves in a single rotor may be engaged by the teeth of comb-like members 45, Fig. 3.
Patent GB-474730-A (GB)
Title: Improved method of making screw blands and dies therefor
IPC: B21K1/44
Filed: 1937-04-19
Abstract: 474,730. Forging bolts. AMERICAN SCREW CO. April 19, 1937, No. 11174. Convention date, June 16, 1936. [Class 83 (iv)] In a screw-blank-making machine of the kind described in Specification 10039/88, [Class 83], having a solid die 10 through which the wire stock W is projected and against the rear face of which the screw-head H is upset by dies 16, 17 on a slide 18, the die aperture is made cylindrical at 10B at its rear end and flares outwardly at 10A towards the front end, thus forming an expansion 10C on the screw shank during the upsetting operation but which is restored to cylindrical form by pushing it through the cylindrical part 10B of the die aperture at the next forward feed of the wire ; this expansion and drawing down of the shank gives it a smooth and uniform surface.
Patent GB-593048-A (GB)
Title: Improvements in or relating to spraying attachments for baths
IPC: A47K3/20
Filed: 1945-05-03
Abstract: 593,048. Shower baths. DUCKERING, J. S. May 3, 1945, No. 11274. [Class 26] A spraying attachment and screen for baths comprises a water conduit bent into oblong formation mounted with its two longer sides 22 upstanding and its lower end behind and connected to the water supplies 14, 15 at one end of the bath 10, and having a branch reaching over the bath from its upper end and carrying a shower nozzle 26, and also having rotary spraying nozzles 28 in the uprights driven by the water pressure, means, e.g. a handle 20, whereby the water may be passed either into the oblong or directly into the bath 10, and a screen 29 of transparent non-brittle plastic material mounted on the edge around the end and parts of the sides of the bath and secured by brackets to the uprights 22. The screen 29 may have hinged flaps 40 and 41, its lower and upper ends being received in channels 31 and 33, the former secured by clips 32 to the bath, and the latter braced by a strut 34 ; it comprises two main sheets which abut or overlap, and which are slotted for adjustment relatively to securing brackets 35 carrying closure strips 39 to cover the slots 37.
Patent GB-1024357-A (GB)
Title: Improvements in or relating to money verifying apparatus and money-controlled dispensing apparatus
IPC: G07F7/04
Filed: 1964-03-17
Abstract: 1,024,357. Checking cash. LITTON INDUSTRIES Inc. March 17, 1964 [March 18, 1963], No. 11290/64. Heading G4T. A change giving and/or dispensing mechanism has a banknote verifying station into which a banknote, placed on a platform 16, is slid through a slot 18 by hand; a knob 28 is lowered to bring a cover flap down over a finger opening 22, and after a solenoid-sensed stop pin 38 has moved into a notch in the cover, sensing mechanism, consisting of a lamp 44 and photoelectric devices positioned in a sensing head 56, is operated to check the validity of the note. The sensing head may be arranged to recognize more than one denomination of note, and the position of the photo-electric devices may be varied to make fraudulent operation more difficult. If the note is rejected, the solenoid 34 is operated and the cover is raised by spring action to allow the rejected note to be removed. If the note is accepted, a drive roller and a backing roller, lowered into position with the cover, move the accepted note to a storage position before the cover is released and the dispensing and/or change giving mechanism is operated.
Patent GB-315740-A (GB)
Title: Improvements in spring webbing for all general seating purposes
IPC: A47C23/14
Filed: 1928-04-17
Abstract: 315,740. Caddy, E. April 17, 1928. Spring surfaces.-A webbing substitute for use in upholstery comprises a band of woven wire or flattened interconnected spirals 1 enclosed within a textile cover 2 of tubular braided construction.
Patent GB-1159701-A (GB)
Title: Track Braking System.
Inventor: BARTLEY GEORGE WELLS
IPC: B61H9/04
Filed: 1966-03-16
Abstract: 1,159,701. Undercarriages. UNDERGROUND MINING MACHINERY Ltd. 6 March, 1967 [16 March, 1966], No. 11425/66. Heading B7L. [Also in Divisions B8 and F2] In a rail-borne vehicle braking system which has vehicle supporting wheels 11, Fig. 1, and at least one separate guide wheel 20 disposed between a rail 10 and a surface 15 which is movable to trap the guide wheel between the rail and itself to apply a braking force, the frictional force developed between the movable surface and the guide wheel is less than the frictional force developed between the guide wheel and the rail. The bogie frame 12 indirectly support pivotably mounted brackets 16 which carry vertically disposed shafts 18 mounting wheels 20. When hydraulic cylinders 22 is pressurized the upper edge of brake plate 15 is drawn inwardly against springs 21 so that wheels 20 are free to rotate. Hydraulic cylinders 22 are de-pressurized to effect braking by means of springs 21 which pivot plates 15 into engagement with wheels 20 to move the latter into engagement with rail 10. Wheels 20 continue to rotate but are heavily braked. Skidding is prevented by arranging for the coefficient of friction between the plate 15 and the wheel 20 to be less than that between the wheel 20 and the rail 10. In another embodiment, Fig. 4 (not shown), the brakes are positively applied by the hydraulic cylinders against the spring pressure. In both embodiments the wheels 20 may have neoprene tyres and the cylinders 22 may be pneumatically, vacuum or electrically operated. The brakes may be actuated at a predetermined speed by a centrifugal governor driven indirectly by the running wheels.