baber/WOPTO huggingface dataset:
Patent GB-1078141-A (GB)
Title: A process for the recovery of plasminogen from blood serum or blood plasma
Inventor: JENSEN VILLY JOHANNES
IPC: C12N9/68
Filed: 1965-03-19
Abstract: Plasminogen is prepared from animal blood plasma or serum by a process comprising the following steps in any suitable order: (i) addition of water, at a temperature between the freezing point of the mixture and 25 DEG  C., so as to dilute the plasma or serum 1 to 4 times; (2) addition of sufficient organic solvent such that a final mixture of water, plasma or serum, and solvent will contain 2 to 10% by volume of the latter; (3) arranging that the pH of the final mixture will lie between 4 and 7; and finally separating the plasminogen-containing precipitate from the mixture.  Organic solvents may be water-miscible, e.g. ethanol, methanol, dioxane or acetone, or only slightly miscible, e.g. ether.  The plasma is prepared by citrating fresh blood, if desired adding an antibiotic such as penicillin or streptomycin, centrifuging off the corpuscles and then re-calcifying.  This may be converted to serum by vigorously stirring for several hours and separating the precipitated fibrin. The plasminogen prepared may be used, after activation to plasmin by treatment with trypsin or urokinase, for clinical applications (see Divisions A5-A6).ALSO:Plasminogen is prepared from animal blood plasma or serum by a process comprising the following steps in any suitable order: 1) Addition of sufficient water, at a temperature between the freezing point of the mixture and 25 DEG C, to dilute the plasma or serum 1 to 4 times; 2) Addition of sufficient organic solvent to provide a final concentration thereof in the mixture of 2 to 10% by volume; 3) Arranging that the pH of the final mixture lies between 4 and 7; and finally separating the resulting plasminogen containing precipitate from the mixture.  Organic solvents may be water-miscible, such as acetone, ethanol, methanol, or dioxane, or only slightly miscible, such as ether.  Suitable animal blood is that from the pig or ox, which is freshly collected, citrated, centrifuged to remove corpuscles and re-calcified to provide plasma, or the plasma stirred vigorously to precipitate fibrin and provide serum. The plasminogen is converted to plasmin by treatment with urokinase or trypsin.
Patent GB-216134-A (GB)
Title: Apparatus for presenting advertisements by opening and closing a door
IPC: G09F13/34
Filed: 1924-05-14
Abstract: 216,134. Fisher, B. C., (Assignee of Quittmann, P.). May 14, 1923, [Convention date]. Elements, m o v in g always in one plane, rotating; actuating.- A panel f bearing an advertisement is moved into a horizontal display position behind the glass panel a of a door when the door itself is opened. The panel is mounted upon an arm pivoted at d and connected by a wire g to a leyer i pivoted at h and bearing when the door is closed upon the post j. When the door is opened the lever moves into a horizontal position and the panel f turns through 90‹.
Patent GB-358989-A (GB)
Title: Improvements in combined motor-compressor units
IPC: H02K7/14
Filed: 1930-04-15
Abstract: 358,989. Revolving-cylinder pumps. ZORZI, C., 32, Rue Plinio, Milan, Italy. April 15, 1930, No. 11977. [A Specification was laid open to inspection under Sect. 91 of the Acts, April 16, 1930]. [Classes 8 (i) and 102 (i).] In a combined electric motor and rotary compressor which compressor is disposed in a chamber adapted to receive the fluid to be compressed, the compressor comprises a flywheel 2 carrying a number of pivoted cylindrical guides 3 upon which can slide pistons 5. Cylinders 6 are connected to rings mounted upon stationary eccentrics 12. The eccentrics have ports 9 in communication with a suction pipe 13 by way of the inside of the casing, and ports 8 in communication with the compression pipe 10. At starting the pistons reciprocate with their cylinders so that no compression takes place and the motor is unloaded. A spring may be placed inside the guide 3 to maintain the piston and cylinder in the same relative position. With an increase in speed, centrifugal force will cause the piston to occupy the position shown. Holes 4 are provided in the guides which admit a quantity of fluid to avoid knock at the end of the piston stroke and to permit smooth reciprocation of the piston during starting.
Patent GB-213790-A (GB)
Title: Improvements in strainers for straining pulp for paper-making purposes
IPC: D21D5/06
Filed: 1923-05-05
Abstract: 213,790. Milne, S. May 5, 1923. Rotary strauters.-The drum of a pulp strainer is rotatably mounted on eccentrics, and receives a gyratory as well as a slow rotary motion. The drum a is mounted on a hollow shaft b carried by eccentric sleeves c<1>. Fig. 3, and eccentrics c<2> forming part of a rotating shaft c which passes within shaft b. The rotary motion of the drum may be given by a pawl e, Fig. 2, pivoted on the end of the vat f and engaging, as the drum gyrates, with the teeth of a wheel g keyed to a lubricating box h which is fixed to the shaft b. The weight of the drum is taken by a spring j<2> which pushes up the free end of a lever carrying a pulley i around which and around the box h passes an endless band h<1>. Joint is made at the ends of the drum with division walls f<3> of the vat by means of rubber rings l, Fig. 4, which are caused by springs l<1> to engage with brass rings f<4> let into the walls f<3>. The rings f<4> have grooves to which water for lubricating the rings l is supplied by pipes m. Similar joints are made where the shaft b passes through the end walls of the vat. With the apparatus shown, the unstrained pulp is supplied to the end of the vat through an inlet f<1>, the pulp strains outwardly through the drum, an outlet being provided at the side, and separated matter is passed through the drum by a screw blade k. But straining may take place inwardly, the blade k being provided on the outside of the drum.
Patent GB-1426689-A (GB)
Title: Preparation of diazonium salts and azo dyes
IPC: C09B41/00
Filed: 1974-03-19
Abstract: 1426689 Azo dyes containing quinone groups FUJI PHOTO FILM CO Ltd 19 March 1974 [19 March 1973] 12187/74 Heading C4P [Also in Divisions C2 and G2] An azo dye containing a quinone group in its molecule is obtained by preparing a diazonium salt solution by reacting an aromatic carbocyclic primary amine or a salt thereof containing as a substituent in its ring a hydroquinone residue with a diazotizing agent and an oxidizing agent, and reacting the diazonium salt with an azo coupler. Specified couplers are phenols, aromatic amines, heterocyclic aromatic compounds containing hydroxyl or amino groups and aliphatic or alicyclic activated methylene couplers. Examples are given for the production of such dyes. They are useful as intermediates in the preparation of dye developers by the reduction of the quinone portion of said dyes with a reducing agent such as hydrogen over a catalyst or N,N-dialkylhydroxylamine. Both the azo dye and the dye developers are useful in colour photography.
Patent GB-1522363-A (GB)
Title: Phosphor materials
IPC: C09K11/77
Filed: 1976-03-18
Abstract: 1522363 Doped alkaline-earth metal fluorophosphates DEFENCE SECRETARY OF STATE FOR 18 March 1976 [24 March 1975] 12235/75 Heading C1A [Also in Division C4] Alkaline-earth monofluorophosphates containing up to 5% of a divalent rare earth activator element based on the total molar content of the activator and alkaline earth metal and which can contain two alkaline earth metals is used as a phosphor. These compounds may be prepared in either of two methods. In one of these the activator doped compound is precipitated from an aqueous solution of a soluble salt of fluorophosphoric acid, a soluble salt of the alkaline earth metal and a soluble salt of the activator element, the precipitate is dried and then fired in a slightly reducing atmosphere at a temperature of from 800 to 1000‹C until luminescence of the phosphor material is established. In the second method ammonium fluorophosphate is fired with appropriate quantities of the oxide carbonate or nitrate of the alkaline earth metal and activator element until a stable weight is reached; this is then fired in a slightly reducing atmosphere at from 800 to 1000‹C until luminescence is established. The preferred alkaline earth metals are barium and strontium and the activator element may be europium, samarium or ytterbium. The phosphor Sr 0À98 Eu 0À02 PO 3 F and the analogous barium compound are exemplified.
Patent GB-1521823-A (GB)
Title: Apparatus for stacking storage battery plates and separators
IPC: H01M10/14
Filed: 1976-03-26
Abstract: 1521823 Separating sheets from piles; collating sheets GLOBE-UNION Inc 26 March 1976 12268/76 Heading B8R An apparatus for forming battery elements of positive and negative plates and separators includes a plurality of piles of positive plates P, negative plates N1, N2 and separators S1, S2, held by brackets 55d, 56d and supported on rotatable discs, e.g. 30d. Each disc has a plate- or separator-shaped aperture 31d and is rotated by a fluid pressure motor 43d from a first position, in which a plate or separator lowermost in the pile falls into the disc aperture, to a second position in which the plate or separator falls from the disc aperture, through an aperture 33d in a base plate 22 to moving conveyer belts 75. Suction ports 65d in the base plate urge the plate or separator downwards into the disc aperture. Tines 86 break the fall of the plates, dogs 84, upstanding from the belts 75, removing the plates from the tines. Battery elements are built up against the dogs as the dogs pass beneath successive piles. The elements are then urged up a ramp 90 and deposited on a collecting wheel, Fig. 1 (not shown), to be subsequently further assembled at station (155). Leaf springs 95 aid stack assembly. A photo-cell jam detector 102 stops the belts.
Patent GB-295343-A (GB)
Title: Improvements relating to thermionic valves or electron discharge tubes
IPC: H01J21/20
Filed: 1927-05-07
Abstract: 295,343. Mullard, S. R., (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). May 7, 1927. Vacuum tubes. - Thermionic valves passing current in one direction only contain in a single evacuated envelope two or more separate sets of grids 3 and anodes 4 disposed along the length of a single long, straight cathode 9 indirectly heated by a separate heater. The cathode 9 may comprise a metal cylinder coated with barium oxide and containing a straight or looped filament heater 10. To prevent. interaction, the electrode sets may be screened by metal discs 11, 12 projecting radially from, and at the potential of, the cathode cylinder. Leads to the electrodes are led through a single pinch 2 and through apertures in the discs 11, 12, or leads to the top set of electrodes may be led through the upper end of the bulb 1. The electrode sets mav be used as different stages in a radio receiver or the anode of one set may be connected to the grid of the next. The filament 10 mav emit electrons and may be used together with the cathode 9 as a rectifier in the anode voltage supply.
Patent GB-922637-A (GB)
Title: Improvements in the direct measurement of the rate of a watch
IPC: G04D7/12
Filed: 1961-04-05
Abstract: 922,637. Testing timepieces. INSTITUT Dr. ING REINHARD STBAUMANN A.G. April 5, 1961 [April 5, 1960], No. 12287/61. Class 139. In a timepiece timing apparatus the beats of the timepiece being tested are picked up by a microphone 10, amplified by an amplifier 11 and transmitted to a differentiator 15. The output signals from the differentiator 15 are fed to a flip-flop circuit 16 and to the exciter coil 17 of a mechanical oscillator 1-8 having a natural frequency corresponding to the frequency of said beats or to a harmonic thereof. The voltage generated in the pick-up coil 8 is transmitted via an amplifier 17, a limiter 18 and a differentiator 19 to the flip-flop circuit 16. The width of the output pulses from the stage 16 is a measure of the phase shift between the excitation and the forced oscillation and so of the rate of the timepiece being tested. The output pulses from the stage 16 are transmitted via a filter circuit to a recorder 21, 22. The amplitude of the forced oscillation could be used as a measure of the rate of the timepiece being tested.
Patent GB-683836-A (GB)
Title: Power take-off shaft for a tractor or other vehicle
Inventor: BUCKLEY ROLAND OLIVER
IPC: B60K17/28
Filed: 1950-05-17
Abstract: 683,836. Toothed gearing. RUBERY, OWEN & CO., Ltd. May 10, 1951 [May 17, 1950], No. 12288/50. Class 80 (i). [Also in Group XXXI] Relates to the drive of a power take-off shaft 28 from a motor vehicle differential (see Group XXXI). The crown wheel 18 of the differential gear is driven by a bevel pinion 15 on a driven shaft 11 mounted by opposed tapered and plain roller bearings 13, 14, 16 in the differential casing 25. Similarly mounted on the opposite side of the casing 25 is the shaft 28 having a bevel gear 32 meshing with the crown wheel 18. The crown wheel is supported against lateral thrust by means of bearing pads 35 supported by adjustable screws 36 from the casing 25. Specification 505,855, [Group XXXI], is referred to.
Patent GB-1149416-A (GB)
Title: Manufacture of chlorine and caustic alkali in diaphragm cells
Inventor: MELLISH STUART FREDERICK
IPC: C25B15/02
Filed: 1967-03-16
Abstract: 1,149,416. Chlor-alkali electrolytic diaphragm cell. IMPERIAL CHEMICAL INDUSTRIES Ltd. Feb.15, 1968 [March 16, 1967], No.12328/67. Heading C7B. A chlor-alkali cell incorporating a percolating asbestos diaphragm is operated under conditions of varying electrical load by rapidly making such change in the rate of flow of electrolyte through the diaphragm by altering the gas pressure on at least one of the anode compartment and the cathode compartment of the cell each time the current density across the diaphragm is changed, so that the rate of electrolyte flow through the diaphragm is always approximately proportional to the current density. In the form shown comprising a cell 1, diaphragm 2, anode 5, foraminous cathode 6, electrolyte inlet 7, chlorine outlet 9, caustic alkali outlet 11 and hydrogen outlet 10, the rate of flow of electrolyte through the diaphragm is changed as required by altering the gas pressure on the cathode compartment by means of a pressure-control valve 18 in the hydrogen outlet pipe. Said gas pressure may be varied e.g. by operation of valve 18 by means of a servo-system, such that the pressure differential across the diaphragm is maintained proportional to the current density, or such that the alkalinity of the caustic alkali leaving the cell remains constant, or the actual flow of electrolyte may be measured by metering the caustic liquor leaving the cell. The pressure in the cathode compartment may be measured by the difference in levels in the tubes 12 of the caustic liquor outlet system. Said tubes may be flexible so that the level of the catholyte may be varied to allow for ageing of the diaphragm.
Patent GB-1453578-A (GB)
Title: Metal substrates with carboxy-functional siloxane release  coatings
IPC: C10M105/76
Filed: 1975-03-25
Abstract: 1453578 Anti-adhesive coatings DOW CORNING CORP 25 March 1975 [1 April 1974] 12368/75 Heading B2E [Also in Division C3] Metal substrates are given improved release characteristics by coating with a siloxane consisting of 0.1-50 mol % of units and 50-99.9 mol % of units  wherein R is a carboxyl-containing radical linked to Si by a Si-C bond and R' is a C 1-18  hydrocarbon or halohydrocarbon radical, a is 1-3, b is 0-2, a + b is 1-3, and c is 0-3. Preferably R is a group HOOC-Q-, where Q is a C 2-10  alkylene radical optionally interrupted by -S- linkages, R' is CH 3 -, a is 1, b is 1 and c is 2. The siloxane may be applied alone or with 1-99 wt % (of the mixture) of a trimethylsilylterminated liquid polydimethylsiloxane. In Examples steel panels are coated from 1% solutions in hexane with a siloxane having Me 3 SiO 0À5  end units and 94 mol % Me 2 SiO, 1, 3.5 or 5 mol % MeViSiO, and 5, 2.5 or 1 mol % of units HOOC-CH 2 -S-CH 2 CH 2 Si(Me)O.
Patent GB-267071-A (GB)
IPC: C10G21/10
Filed: 1926-05-14
Abstract: 267,071. Allgemeine Ges. f³r Chemische Industrie. March 5, 1926, [Convention date]. Sulphurous acid, distilling; multiple effect apparatus.-In refining hydrocarbon oils by treatment with liquid sulphurous acid, the acid is distilled from the extract by passage through a series of evaporators, the first of which is operated under pressure. Sulphurous acid gas generated in the first evaporator is used as heating agent in the later evaporators and may also be used for evaporating sulphurous acid from the refined oil. The extract forced by a pump P1 passes in succession through evaporators H1, H2, V1, V2, separated by valves R1, R2, R3 and is withdrawn by a pump P2. The first evaporator H1, operated under pressure, is heated either directly by fire heat, or by exhaust steam; and the final evaporator V2, operated under reduced pressure produced by a pump K, is heated by exhaust steam. The intermediate evaporators are heated by the sulphurous acid gas which is generated in the preceding evaporator and which becomes liquefied in the heating members. The vapour from the evaporator V1 and the compressed vapour from the pump K are liquefied by passage through a cooler C. The heating-members may be located outside the evaporators and may be constructed in the form of double-pipe apparatus.
Patent GB-638339-A (GB)
Title: Improvements in change-key locks
IPC: E05B35/08
Filed: 1948-05-06
Abstract: 638,339. Change-key locks. LING, H. E. (trading as LING & SON, E.). May 6, 1948, No. 12473. [Class 44] A change-key lock of the type comprising a set of sliding plates 6, Fig. 4, which are raised by the key bit, a set of sliders 8 on the lock bolt 1, each of which has a tongue 13 or 14 engaging a notch 17 in its corresponding plate, and a tongue 12 on the fore end 3 of the lock case to enter one of a set of notches 11 in the front edge of each of the sliders 8, is characterised by the tongue 13 of each slider being spaced well away from the tongues 14 of the adjacent sliders, the notches 17 in the levers being spaced to correspond and the tongue of any slider always overlapping the edges of the adjacent plates. The plates 6, which slide vertically on a stump 5 formed on the back plate 2 of the lock case, have their forward edges stepped, the notches 17 being formed in the rearward portion of this edge. Alternate plates are inverted in assembling the lock so that notches 17 are alternately nearer the upper or lower edges of the lock. The sliders 8 move vertically on a stump 7 on the bolt 1 and each has its rearward edge stepped to engage the corresponding plate, the tongue 13 or 14 being formed nearer the upper or lower edge respectively in alternate sliders. On inserting the key and rotating anticlockwise, Fig. 4, the steps of the bit raise the plates 6, and consequently sliders 8, varying distances against the action of spring 24 which presses downwardly on the flange 19 of a sliding plate 18. The bolt 1 is also projected by the key, and carries with it the sliders 8 which are held raised by tongue 12, whilst the plates 6 return to their original position, Fig. 9, to lock the bolt. The tongues 14 are always overlapped by the stepped leading edges of adjacent plates 6, so that disarrangement of the sliders is impossible and separator plates are consequently not required. A double bitted key may be used in which the distance from end to end of corresponding steps is constant, so that both the upper and lower edges of slots 15 in plates 6 are engaged by a key bit and return springs may be dispensed with.
Patent GB-733391-A (GB)
Title: Hammer head attachment
IPC: B25D1/02
Filed: 1953-05-05
Abstract: 733,391. Hammers. MARTIN, W. E. May 5, 1953, No. 12484/53. Class 61. An attachment for the head of a hammer comprises a hollow body provided with or carrying a supplementary striking face and having an end portion made of elastic non-metallic material having an opening therein of reduced diameter to effect a constrictive grip on the head of the hammer. As shown, a cap 3 of non-metallic material such as a moulded rubber compound is provided with an inwardly extending lip 4 which engages the neck 9 on the hammer head. In a modification an auxiliary striking face of synthetic resin or other tough material is moulded to the elastic end portion of the attachment. In another modification the attachment comprises an elastic sleeve provided with a constriction at each end, one constriction serving to hold an auxiliary striking head and the other to hold the body on the hammer.
Patent GB-474677-A (GB)
Title: Improvements relating to the extirpation of rodents
IPC: A01N25/00
Filed: 1936-05-04
Abstract: A poison for rodents consists of a solid starch-containing food or bait mixed with a halogen hydrin of a polyhydric alcohol such as glycerin monochlorhydrin or the compounds obtained by replacing one hydroxyl group of glycerin, erythrite, sorbite or sugar by halogen. Pastry or wheat grains may form the bait ingredient. German Specification 612,206, which relates to the use of the same compounds mixed with a bait such as sugar for use as insecticides, is referred to.
Patent GB-468094-A (GB)
Title: Improvements in or relating to adjustable chairs
IPC: A47C1/032
Filed: 1936-05-04
Abstract: 468,094. Adjustable seats. CAISLEY, E. May 4,1935, No. 12597. [Class 52 (ii)] In an adjustable chair in which a sliding seat is connected to an angularly movable back, the latter comprises two separately upholstered parts, a, c, the upper part a being fixed, and the lower part c being pivoted at d and engaging a rod f on the frame g of the sliding seat. The latter slides on rails h and may be provided with locking means such as a cam disc k.
Patent GB-700023-A (GB)
Title: An improvement in or relating to means for coupling implements or the like to tractors
Inventor: SYKES FRED
IPC: A01B59/042
Filed: 1951-05-30
Abstract: 700,023. Agricultural implements. BROWN TRACTORS (ENGINEERING), Ltd., D. May 12, 1952 [May 30, 1951], No. 12644/51. Class 6 (1) A device for coupling an implement to a tractor of the kind provided with a power unit which rocks a shaft a which is provided with laterally spaced arms b which are connected by links b' to laterally spaced towing links b<SP>2</SP> comprises a jaw e fixed on the towing links b<SP>2</SP> and a locking plate m fixed on a pair of links j which are pivoted on the hook member and are attached to a central top link i which is pivoted on a lever h which is fixed to the shaft a. The geometry of the linkwork is such that when the side links b<SP>2</SP> are lowered the locking plate m is in the position shown in Fig. 1 thus allowing a hitch member n to be received in the hook c. When the links b<SP>2</SP> are raised to the towing position the locking plate assumes a position in which it closes the recess in the hook member c thus locking the hitch member n in position on the hook e.