baber/WOPTO huggingface dataset:
Patent GB-1046580-A (GB)
Title: Process for the isolation of the blood pressure-reducing circulatory enzyme
Inventor: SCHAFER GERHARDT
IPC: A61K35/39
Filed: 1965-06-25
Abstract: The blood-pressure-reducing circulatory hormone (enzyme) is extracted from comminuted pancreas tissue with a 10-40 volume percent aqueous solution of a water-miscible organic solvent, e.g. acetone, first at a temperature in the range 20-28 DEG C., and then, after addition of activated charcoal and an inorganic absorbent e.g. Kieselguhr, bentonite, kaolin or diatomaceous earth at a temperature in the range 32-37 DEG C.  Thereafter, the active material may be obtained from the filtrate by known methods.
Patent GB-1187934-A (GB)
Title: Electric Incandescent Lamp.
Inventor: CHIOLA VINCENT
IPC: C23C14/58
Filed: 1968-06-06
Abstract: 1,187,934. Coated wires. SYLVANIA ELECTRIC PRODUCTS, Inc. 6 June, 1968 [19 June, 1967], No. 27066/68. Heading B2K. [Also in Divisions Cl, C7 and H1] In a method of making an electric incandescent lamp the lead-in wires, which are composed of tungsten and/or molybdenum, are coated with the phosphate or phosphide of tungsten or molybdenum, or a mixture thereof, before being sealed into the vitreous envelope. In one embodiment tungsten phosphate glass is made by dissolving tungsten trioxide in orthophosphoric acid and the glass is then dissolved in water at the rate of 50 grams to 100 ml. The solution is concentrated by evaporation and the wire is then dipped and dried first at 400‹C and then at 1,000‹C. In another embodiment the phosphate is formed in situ by exposing a tungsten or molybdenum wire to phosphorus pentoxide vapour generated by heating orthophosphoric acid and/or metaphosphoric acid to a temperature of 700‹C-1,000‹.C. In a further embodiment the phosphate is vapour-deposited on the wire. The coating preferably consists of tungsten phosphate glass in which the W:P atom ratio is in the range 1:5.9 to 1:9, particularly 1:7.6, or molybdenum phosphate glass in which the Mo:P atom ratio is in the range 1:5 to 1:10. Phosphide coatings are formed by heating the corresponding phosphate coating at a temperature of 700‹C-1,100‹C in a reducing, e.g. hydrogen, atmosphere.
Patent GB-1237091-A (GB)
Title: A control mechanism for the air valves of pipe lines of rail vehicles having central buffer couplings
Inventor: WUNDERLICH GERD
IPC: B61G5/08
Filed: 1968-06-07
Abstract: 1,237,091. Operating mechanism for rail vehicle service line valves. MINISTERIUM FUR VERKEHRSWESEN. 7 June, 1968, No. 27156/68. Heading B7T. An operating mechanism for rail vehicle service line valves is actuated by the vehicle central buffer couplers on coupling by a pushpull cable 32, said mechanism comprising a housing 22 adapted to be secured to the vehicle frame, a valve operating shaft 3 passing therethrough, a spring 15 in a casing 17 slidably mounted in the housing with the spring axis at right angles to the shaft 3, a two-armed lever 12 mounted to turn on the shaft with one arm connected by a bolt and slot coupling 14, 13 to the casing, an arm 23 pivoted at 20 to the housing and being biased upwardly by a spring 26, a pin 19 on the lever 12 engaged in a notch 28 of the arm in the ready-to-operate conditon of the mechanism, a shoe 9 on the casing bearing on the arm, and a rod 10 connecting the inner core of cable 32 with the spring 15 by means of a plate 16 slidable within the casing, the mechanism operating such that on a coupling operation the cable 32 causes the spring 15 to be compressed until the pressure of the shoe 9 depresses arm 23 to release the pin and notch engagement 19, 28 so that the spring and casing move together and the lever 12 is turned, the mechanism further comprising a second pin 7 on the lever 12 having a pawl 2 loaded by spring 6 thereon, a cam disc 1 pivoted on shaft 3, said disc having a slot 8 therein in which a projection 5 on the shaft engages and a notch in its edge into which the pawl engages, a control plate 4 for the pawl being mounted on the housing coplanar with the disc 1, said plate having a tooth 3 for engagement with the pawl, said pawl by engagement in the disc notch turning the cam disc through the movement of the lever 12 on a coupling operation, which disc by engagement with projection 5 turns the shaft 3 to open the valves, the pawl being pivoted by engagement with plate 4 as the disc reaches the valve-open position so that it leaves the notch. Spring means 11 are provided to return spring 15 and the casing to the initial portion on uncoupling, but the valves have to be closed by hand using a lever connected to shaft 3. To prevent the valves being opened on a coupling operation during shunting, the shaft 3 is turned anti-clockwise causing the pawl to engage tooth 31, thereby lifting it from engagement with the disc notch.
Patent GB-1184003-A (GB)
Title: Improved Flocculation with Modified Anionic Polymers
IPC: C02F1/56
Filed: 1968-06-07
Abstract: 1,184,003. Anionic/cationic polymer flocculants. DOW CHEMICAL CO. 7 June, 1968 [12 June, 1967], No. 27177/68. Heading C3P. [Also in Division O1 A flocculant for aqueous suspensions is obtained by mixing a high molecular weight, water-soluble anionic polymer in aqueous solution with a water-soluble cationic polymer which contains a plurality of secondary and/or tertiary amine groups, and in which any quaternary ammonium groups present constitute less than 15 mole per cent of the N-containing functional groups present. Generally 3-50 parts of the anionic polymer is used for each part by weight of the cationic polymer. Anionic polymers exemplified are sodium polystyrenesulphonate and polyacrylamide partially hydrolysed to sodium carboxylate form; salts of (meth)- acrylic and maleic polymers are also suitable, as well as carboxyl-containing cellulose and starch derivatives. Cationic polymers exemplified are poly-(dimethylaminoethyl methacrylate), copolymers of acrylamide with N-dimethylaminomethyl- or N - dimethylaminoethyl - acrylamide, polyalkylene polyamine, polyethylenimine, poly-(phenylaminoethyl methacrylate) and hydroxyethylated polyethylenimine; also suitable are condensates of polyamines with formaldehyde, epichlorohydrin and alkylene oxides, amino-alkyl derivatives of polysaccharides, polymers of N-vinylpyridine, and aminoalkyl maleate polymers.
Patent GB-902743-A (GB)
Title: Improvements in drawing boards
Inventor: BENNETT JACK
IPC: B43L5/00
Filed: 1957-08-23
Abstract: 902,743. Drawing boards. MASON & SONS Ltd., E. N. Aug. 25, 1958 [Aug. 23, 1957], No. 27203/58. Divided out of 902,742. Class 11. A drawing board comprises opposed sheet metal components 3 and 4 assembled to form a hollow structure providing at least one continuous plane surface to support the drawing paper or other material. The components 3 and 4 are flanged at 5 and 6 and joined together to form a hollow structure. The member 4 is provided with ribs 8 and the member 3 with channelshaped reinforcing members 7. At the points of intersection of the members 7 and the ribs 8, pads 9 are provided and the two components are joined together with bolts 10 having spring- locking clips 11. The surfaces 12, 13 of the board may be as described in Specification 902,742.
Patent GB-841828-A (GB)
Title: "improvements relating to casings for the pulsating flow of gases"
IPC: F01N1/24
Filed: 1956-09-05
Abstract: 841,828. Exhaust-silencers. EBERSPAECHER, W., and EBERSPAECHER, H., [trading as EBERSPAECHER, J. [Firm of] ]. Sept. 5, 1956 [Sept. 6, 1955], No. 27212/56. Class 7(2). A hollow, cylindrical casing 3 having a central passage for the pulsating flow of gases, such as a silencer for internal-combustion engines, is packed in the annulus around the passage with sound-absorbing material 4 and includes a central, cylindrical perforated wall 1 surrounded by a fine-mesh screen 5 and an outer perforated wall or a screen 6 associated with the packing and surrounding the screen 5. As shown in Fig. 1, a perforated duct 1 is enclosed in finemesh gauze 5 over which is disposed a perforated tube 6, the casing 3 of the silencer being filled with sound-absorbing material such as metal shavings or glass wool. In modifications, (a) there is an expansion chamber 12, Fig. 2, adjoining a chamber filled with soundabsorbing material 4, the inlet pipe 7 having a perforated closure 11 and being coaxial with the exhaust pipe 8; a perforated transverse partition 9 is backed by gauze and a perforated plate 10, (b), the sound-absorbing material 4 is simultaneously wound convolutely with gauze and around a perforated duct, (c) the sound-absorbing material 4 comprises concentric layers with intervening layers 14, Fig. 5, of gauze, there being transverse layers 15 of gauze, and (d) a gauze layer 16, Fig. 6, separates a coarse sound-absorbing material 17 from a fine sound-absorbing material 18 such as basalt wool, a helical member being disposed within the duct 1.
Patent GB-843356-A (GB)
Title: Manufacture of polyethylene terephthalate
Inventor: GOODMAN ISAAC
IPC: C08G63/78
Filed: 1957-08-29
Abstract: Polyethylene terephthalates, suitable for conversion into fibres, is more by heating a cyclic trimmer, tetramer or pentamer of ethylene terephthalate of formula:-  <FORM:0843356/IV(a)/1> where n is 2, 3 or 4.  The heating is effected in the presence of an initiating substance (i.e. water, or a monohydric or polyhydric alcohol such as methyl alcohol or ethylene glycol, or any other compound capable of providing molecular fragments which will combine terminally with the polymer chain) and a metal-containing polycondensation catalyst (e.g. antimony oxide or litharge). Polycondensation may be effected in the solid state or in a solvent for the starting material (e.g. methyl naphthalene or a molten highly polmeric polymethylene terephthalate) and is preferably effected in an insert atmosphere.  According to the Provisional Specification, polymethylene terephthalates containing 2-10 methylene groups in the repeating unit of the polymer may be obtained by heating a cyclic low polymer of a polymethylene terephthalate of formula:  <FORM:0843356/IV(a)/2> where n is 2-5 and x is 2-10.ALSO:A cyclic trimer, tetramer or pentamer of ethylene terephthlate of formula:  <FORM:0843356/IV(b)/1> where n is 2, 3 or 4, is made by the extractive treatment of polyethylene terephthalate with organic solvents by a method similar to that disclosed by Ross et al., J. Poly-Sci. 13, 406 (1954).  The cyclic polymer is polymerised to polyethylene terephthalate (see Group IV(a)).
Patent GB-802014-A (GB)
Title: Mobile device for operating the cover on tyre moulds
Inventor: HARNING OTTO
IPC: B29D30/06
Filed: 1955-09-27
Abstract: 802,014. Opening and closing tyre moulds. VEB ERSTE MASCHINENFABRIK KARLMARX-STADT. Sept. 27, 1955, No. 27469/55. Class 87(2). [Also in Group XXX] A mobile apparatus for lifting the covers from tyre mould bases and replacing them comprises a carriage 15 which runs on rails 13, 14 alongside moulds 1 to 12. The carriage supports a framework 46 within which a slide 49 is moved up and down by an electric motor 52 via crank rod 54. The slide carries a tube 55 which is moved to and fro horizontally between rollers 56 by an electric motor 57 via splined shaft 58, gearing 59, screw 60 and a nut fixed to the tube. A mould-cover-engaging device is carried by a bell-crank 66 one arm of which is pivoted at 63 to the tube 55, the other arm carrying a roller 68 which runs in a slot 69 in slide 49. The mould cover has fixed bayonet-joint lugs 77, 78, and the device includes bayonet-joint lugs 75, 76 which can be moved through 90 degrees by means of a handle and positioned under the lugs 77, 78 to secure the mould cover to the device. When the lugs 75, 76 are so moved, a mould locking member is unlocked by the movement of two bars which are secured to and move with the lugs, the mould cover being thus released from the base. The slide, tube and device 64 is then raised to the Fig. 2 position, carrying the mould cover. To replace the cover the movements are reversed. The carriage 15 has twelve electrical contacts, one for each mould, and is moved by an electric motor which takes current from conductors 43, 44, 45. Between the rails are twelve recesses 16 ... 27, one opposite each mould. Operation. The carriage being to the extreme left, Fig. 1, and the mould 4 being ready for opening, the operator turns a switch-cumindicator handle 83 (see Fig. 5 (not show-n), to position 4 and presses a switch, whereupon the carriage moves to the right, Fig. 1, and stops in the position shown. It stops because contact 31 thereon engages contact 31a on mould 4 and switches off the carriage motor. This engagement of contacts also moves a catch 86 on the carriage to engage recess 19 and lock the carriage in position. The operator then presses a switch to energize motor 57 to move the device laterally, and simultaneously a slave switch energizes the motor 52 to lower the device into engagement with the mould cover. The motors 57, 52 are automatically switched off. On movement of the lugs 75, 76 to release the mould cover, the motors 52, 57 are restarted to move the cover laterally and upwards away from the mould. After replacement of the mould cover a magnet 85 is energized to release the catch 86 to allow the carriage to be moved to another mould.
Patent GB-274850-A (GB)
Abstract: 274,850. Akt.-Ges. vorm. Seidel & Naumann. July 22, 1926, [Convention date]. Adding-apparatus; full-stroke mechanism.- In a computing-attachment for typewriters wherein the counter is actuated by a bail 22 engaged at each key stroke by one of a series of slides 2 linked with the respective numeral keys 9, an auxiliary pawl 16 is applied to the usual full-stroke mechanism so as to prevent reversal of the slide between the commencement of the return stroke and the effective engagement of the rack teeth 11 by the main pawl 13. The latter extends across all the slides and is rigid with a spring-controlled ratchet-wheel 14. When the slide commences to descend, the projection 10 displaces the actuating bail 22 and this in turn rocks the auxiliary pawl out of engagement with the ratchet wheel 14 to enable the main pawl to engage the rack teeth, after which the bail 22 returns and the pawl 16 re-engages. With the slide in its lowest position therefore (Fig. 4), upward movement only is permissible until the parts regain the normal position shown in Fig. 1.
Patent GB-736840-A (GB)
Title: Improvements in or relating to process and apparatus for forming pads of treated tissues
IPC: B42B5/00
Filed: 1952-02-29
Abstract: 736,840. Packaging-machines. DOW CORNING CORPORATION. Feb. 29, 1952 [March 10, 1951], No. 27531/53. Divided out of'736,784. Class 94 (1). [Also in Group VIII] Pads of cleaning tissues for assembly with covers to form books as described in Specification 736,784, are formed by feeding tissue paper B from a supply roll at A through treating rollers C, which apply a cleaning and polishing fluid, and then through a slotting and perforating device E which divides it into strips and perforates each strip near one edge, the strips being finally wound up on a mandrel 55 and severed transversely by a rotary cutter 63 movable axially of the mandrel. The paper passes under a guide roller 20a, over a steel roller 20, Fig. 4, under a further guide roller 20b and then between feeding rollers D, the roller 20 bearing against a rubber-covered roller 19 which in turn engages a threaded roller 18 which dips into a bath 31 of treating fluid, such as dimethylpolysiloxane. The roller 18 is driven through gearing 28 and its surface is engaged by a scraper (not shown) which removes surplus fluid. The bearings 23 of the rollers 19, 20 are slidable vertically in the frame 24 and may be raised by screws 26 operable through gearing by a handle 27 so that the three rollers are out of contact with one another when the machine is idle. The device E comprises a driven roller 51, Fig. 8, formed with spaced grooves 53 which co-operate with pairs of slitting and perforating wheels 48, 49 carried by pivoted arms 45, the pairs of wheels being rotated by contact of the side faces of the wheels 48 with the sides of the grooves. The mandrel 55 is rotatable. on a driven shaft 56 detachably mounted in bearing blocks 60 and is driven from the shaft through a friction clutch 58, Fig. 3. A timer 61 driven by a chain 62 from the mandrel gives an audible or other signal when the required number of layers have been wound. The mandrel is then rotated manually and locked in position by a pin 67 when a groove 66 therein is aligned with the cutter 63, and the latter, which is operated electrically and slidable on rods 65, is then traversed manually through the layers of tissue. The severed pads are received on a pivoted table 70 which may be raised or lowered by a hydraulic cylinder 72 operated by pedals 73, 74. The feed rollers, roller 51 and mandrel 55 are driven by a motor 81 through variable speed gearing 82 and the treating rollers are driven through separate variable speed gearing 83. A further grooved roller 75 co-operating with slitting wheels 78 carried by pivoted arms 77 (shown in an inoperative position) is provided so that the apparatus may be used for forming rolls of treated tissue which are wound on a smaller mandrel substituted for the mandrel 55.
Patent GB-820744-A (GB)
Title: Television receiver with an optical filter
IPC: G02B5/22
Filed: 1956-09-10
Abstract: 820,744. Optical apparatus. SIEMENS & HALSKE A. G. Sept. 10, 1956 [Oct. 19, 1955], No, 27554/56. Class 97(1) [Also in Group XL(b)] A television picture tube having an emission spectra with two or more principal maxima has associated with it an optical filter having a transmission characteristic which is of relatively high value for said principal maxima, and of relatively low value for other wavelengths, and which causes a wavelength shift from the principal maxima in the direction of another. As shown, for a tube having an emission spectrum 1a, a filter with transmissibility 1c provides a resultant spectrum 1b in which the middle peak has been shifted towards the left. The filter layer may be applied direct to the tube or to an implosion protector, but is preferably detachable.
Patent GB-1174866-A (GB)
Title: Strong Flame-Resistant Cellulosic Fibres and Articles and process for producing the same
IPC: D06M11/66
Filed: 1967-06-15
Abstract: 1,174,866. Nitrogen-containing cross-linked cellulose. NITTO BOSEKI CO. Ltd. 15 June, 1967 [25 June, 1966], No. 27721/67. Heading C3A. [Also in Division D1] Cellulose fibres having a swelling degree in water of more than 70% and preferably an orientation degree less than 40 x 10<SP>-3</SP> and articles made therefrom, e.g. woven or non- woven cloth, are treated with an aqueous solution containing (a) one or more of ammonium sulphate, sulphamate or imidosulphonate and optionally (b) one or more of ammonium phosphates, guanidine phosphate or ammonium aluminium phosphate, and are then baked at 290-350‹ C., e.g. using I-R radiation, to yield a product containing at least 7% by wt. of combined N 2 . The product is stated to be crosslinked. The unbaked fibres preferably contain at least 20% of (a) and at least 0À02% of (b), calculated as dry salt based on the fibre weight. The product is resistant to flame and chemical attack.
Patent GB-1477735-A (GB)
Title: Electromagnetic relay with pivotal armature
IPC: H01H50/04
Filed: 1974-06-24
Abstract: 1477735 Electromagnetic relays ELMEG ELEKTRO-MECHANIK GmbH 24 June 1974 [9 July 1973] 27969/74 Heading H1N The pivots 8 of an elongated, centrally pivoted armature 7 of an electromagnetic relay are journalled in eccentric apertures in rotatably mounted discs 9 to enable the pivotal axis of the armature to be adjusted so that the free ends of the armature occupy an optimum position with respect to abutment surfaces 13 in either side of said ends. The adjustment is effected by operating the relay so that the armature is oscillated rapidly. The discs may then be adhesively secured in position. The discs are located by members 10 in the bore of the bobbin 6. Alternatively they may be mounted or rails or positioned externally of the bobbin. The relay shown is otherwise substantially the same as that described in Specification 1476960.
Patent GB-951378-A (GB)
Title: Improvements in liquid-cooled rotor for dynamoelectric machine
IPC: H02K3/22
Filed: 1960-08-12
Abstract: 951,378. Cooling and securing coils for dynamo-electric machines. GENERAL ELECTRIC CO. Aug. 12, 1960 [Aug. 18, 1959], No. 27993/60. Heading H2A. In a dynamo-electric machine rotor 4 having direct-cooled windings, the cylindrical rotor body 4b is enclosed in a thin member 15 to prevent liquid coolant leakage and yet not adversely affect the flux pattern, and this member is surrounded by a plurality of relatively thick concentric retaining rings 16, of non-magnetic material such as titanium or the austenitic steels, to support the thin member against the centrifugal forces exerted on it by the liquid coolant and by the windings 9 in the slots 4c. The machine is shown as a generator having on the rotor field windings 9 comprising individual conductors 11 with insulation 12 and slot armour insulation 13 with which grooves 11a define coolant conduits 14. The end turns 9b are contained in compartments 19 formed by cylinders 15, 17, welded to annular members 18 at each end of the rotor. A massive centering ring 21 has the end rings 16a shrunk on to it, and clearance gaps 20, 22, between cylinder 17 and ring 21 respectively serve to allow rotor spindle 4a to flex without causing further stresses on rings 16 or compartment 19. From supply pipe 24 coolant flows through radial conduits 4e into one compartment 19, thus immersing end turns 9b, and then along conduits 14 into the other compartment 19, existing through radial conduits 4g, bore hole 4f, radial conduits 4h, orifice 27, coolant collector 25 and discharge pipe 26. The generator stator 1 is wound with armature bars 6 which may be of the liquid direct-cooled type.