baber/WOPTO huggingface dataset:
Patent GB-891597-A (GB)
Title: Improvements relating to marine steam turbine propulsion installations
Inventor: DAVIS ALLAN WILLIAM
IPC: F01K7/22
Filed: 1959-02-16
Abstract: 891,597. Nuclear power plant. FAIRFIELD SHIPBUILDING & ENGINEERING CO. Ltd. Feb. 15, 1960 [Feb. 16, 1959], No. 5235/59. Class 39(4) In a marine steam propulsion plant, in which steam is generated by a nuclear reactor, a combined steam reheater and moisture separator is installed between the prime mover stages. As shown, the H.P. turbine 10 receives steam through pipe 12 from the reactor steam generator and exhausts to the low pressure turbine 11 through the reheater casing 14. On entering 14, the steam flows into the annular chamber, formed of plates 33, 34, 35 surrounding the tubular heat exchanger 30. The steam passes from the chamber through the vanes of the vortex plate 34 and the separated moisture is collected in 37. The dried steam rises through the heat exchanger where it is heated and passes to turbine 11. The tubes 30 are supplied from 12 with re-heating steam which flows downwards to the header 32.
Patent GB-985091-A (GB)
Title: Improvements in and relating to electrical air heaters
Inventor: SCHOLES DENIS HERBERT PATRICK
IPC: F24H3/04
Filed: 1961-02-13
Abstract: 985,091. Electric resistance forced draught air heater. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 25, 1962 [Feb. 13, 1961], No. 5275/61. Heading H5H. A forced draught air heater includes an external pressure resisting shell forming an annular air duct with a coaxial inner shell, and a plurality of continuous section rectilinear tubular metal resistance units insulatingly supported within the inner shell with their axes parallel to the axis of the shell, the air flowing, from an inlet at one end of the heater, successively and in alternate directions, through the annular duct, through the inner shell, and through the resistance units, to an outlet at the opposite end of the heater. The arrangement of the heater is as shown in Fig. 17 of Specification 980,454, the heater units 8, 9, 10, Fig. 3, and the inner shell 6, being maintained in position by refractory rods 11 and by spacers 7 respectively. Each heater unit is similar to that described, with reference to Fig. 10, in Specification 980,454, the separate resistance tubes being maintained in coaxial relationship by an axially spaced series of support rings and spacers, and at least the outermost resistance tube being of continuous section to provide an air duct. The resistor units may be run at 1000‹ C. to provide air at about 825‹ C.
Patent GB-294506-A (GB)
Title: Improvements in or relating to fastenings for securing railway rails
IPC: E01B9/46
Filed: 1927-02-25
Abstract: 294,506. Mills, Ltd., J., [Executors of], and Macbeth, A. Feb. 25, 1927. Chairs with separate jaws; sleepers, securing rails to; creeping of rails, preventing.-Rails are secured on to a seating 8 in a chair or sleeper by a clamp or jaw 15 having line contact with a wedge 13, so that it may tilt or rock relative to the wedge to receive rails of varying width. The clip is substantially kidney-shape, and has a convex back to engage the wedge.
Patent GB-875923-A (GB)
Title: Improvements in clamping collars for gripping cylindrical members
IPC: E21D15/32
Filed: 1958-02-19
Abstract: 875,923. Telescopic pit props. EGGEMANN, W., and CAMPENHAUSEN, VON E., [trading as SCHWARZ KOMM. GES., HERMANN]. Feb. 19, 1958 [March 13, 1957], No. 5392/58. Class 20(2) [Also in Group XXV] A clamping collar, for example for adjustably securing an upper part 1 of a tubular pit prop in a lower part 2 of the prop, is formed in two parts 3, 4, each having a cross-section such that the collar has the characteristics of a uniformly stressed beam, the internal surface of each collar part extending in a circular arc having a radius which is greater than that of the cylindrical surface of the part 1 by an amount which will enable the two parts 3, 4, when the collar is tightened, to exert on the cylindrical surface of the part 1 a pressure which is substantially uniform along the circumferential length of the surface engaged by the collar. The collar is tightened by means of a yoke 9 and a co-operating pressure block 11, tongues 8 on the two collar parts 3, 4 being gripped between noses 10 on the yoke 9 and the block 11 and the latter being moved in the gripping direction by a wedge 12. The adjacent tongues 8 diverge outwardly, so that when the collar is tightened the facing surfaces of the adjacent tongues 8 are parallel. The collar parts 3, 4 are fixed to the prop part 2 by means of a welded-on bridge strap 5 and welded-on straps 6 and 7, respectively, the collar part 4 being thereby permitted a limited movement relative to the prop part 2. The block 11 is provided with lugs 13 which engage in recesses in the yoke 9 for guiding the movement of the block. Specifications 686,675 and 732,251 are referred to.
Patent GB-989826-A (GB)
Title: Process of preparing a polypeptide from a mammalian liver extract fraction and therapeutic composition containing same
IPC: A61K35/407
Filed: 1963-02-11
Abstract: A polypeptide having anti-allergic and anti-histaminic activity is prepared by subjecting mammalian liver to an enzymatic digestion by means of a proteolytic enzyme, destroying the enzyme, lyophilizing the clarified product of digestion, dissolving the solid so formed in water and subjecting the aqueous solution to two successive fractionations (a) by treatment with acetic acid activated carbon followed by elution with acetic acid, and (b) treatment with a strongly acid cation exchange resin followed by elution with 0,2 M. ammonium acetate buffer having a pH of 5,46\sB0,04 and collecting the fraction of eluate corresponding to phenylalanine and tyrosine (defined).  This may be further fractionated as in (b) with an 0,2 M. ammonium acetate buffer having a pH of 4,48\sB0,04 and an eluate fraction corresponding to phenylalanine collected and concentrated to provide a pure product.  The polypeptide hydrolyses to liberate the following amino acids: aspartic acid, threonine, serine, glutamic acid, proline, glycine, alanine, valine, isoleucine, leucine, phenylalanine, lysine, histidine and arginine.  The proteolytic enzyme may be papain, the temperature 37 DEG  to 60 DEG  C., the duration of enzymatic digestion 2 to 24 hours, a final heating step at 100 DEG  C. being used to destroy the enzyme.  The product is clarified by filtration, lyophilized and dissolved in water and treated as in (a) and (b) above.  The cation exchange resin is of the polystyrene sulphonic acid type.  The anti-allergic and anti-histaminic polypeptide may be mixed with a pharmaceutical vehicle for parenteral, oral or topical administration.
Patent GB-744663-A (GB)
Title: Calcium-strontium phosphate phosphors
IPC: C09K11/71
Filed: 1952-03-03
Abstract: 744,663. Luminescent materials. SYLVANIA ELECTRIC PRODUCTS, Inc. March 3, 1952 [March 3, 1951; March 3, 1951], No. 5517/52. Class 39 (1). A luminescent material comprises a tricalcium phosphate in which up to 90 per cent of the calcium is replaced by strontium, the activator being tin with or without manganese, the proportion of phosphate radicle being that between the orthophosphate and the pyrophosphate and the tin being present in part in the stannous state. The Sn/P 2 O 5  ratio is from 0.2 to 0.002 and the Mn/P 2 O 5  ratio is 0.2 or less. The starting materials are fired in air and then in a controlled reducing atmosphere of nitrogen and hydrogen. Alternatively the prefiring step in air is omitted. Several examples of preparation are described in which the metals are introduced either as phosphates or carbonates, and tables give photometer readings for different colours and firing conditions and varying proportions of essential elements Specifications 733,613 and 738,733 are referred to.
Patent GB-1077848-A (GB)
Title: Improvements in or relating to dimethyl terephthalate
IPC: C07C69/82
Filed: 1966-02-09
Abstract: The invention comprises molten dimethyl terephthalate of increased stability containing a monohydric, saturated, C1-C4 aliphatic alcohol as a stabilizing agent.  The alcohol stabilizer may be added to the molten terephthalate by simple addition, or by passing a stream of inert gas containing the alcohol into the molten dimethyl terephthalate.  The amount of alcohol added as a stabilizing agent may be 0.01 to 3% by weight of dimethyl terephthalate. Examples are given.
Patent GB-415439-A (GB)
Title: Improvements in and relating to means for converting electric currents
IPC: H02M7/51
Filed: 1933-02-24
Abstract: 415,439. Converting. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitats-Ges. ; 2, Friedrich Karl-Ufer, Berlin.) Feb. 24, 1933, No. 5716. Convention date, Feb. 24, 1932. [Class 38 (ii).] Relates to an inverter in which reversely connected valves gb1 and gb2, Fig. 1, are used to enable inductive loads to be supplied and consists in connecting in the D.C. circuit a source of potential Z for effecting commutation. Figs. 5 and 6 show forms of the commutating potential ez. Commutation takes place between the points t11, t12 &c. when the appropriate anode has a negative potential. The source of potential may be a transformer or machine. In a modification commutation condensers are provided and a condenser is connected in parallel with the source of commutation potential.
Patent GB-595426-A (GB)
Title: Improvements in electric heaters of water and other liquids
IPC: F24H1/10
Filed: 1945-03-08
Abstract: 595,426. Supply and delivery arrangements for hot-water boilers. WILLIS, A. E. March 8, 1945, Nos. 5750/45, 31925/45, and 9711/46. [Class 64 (i)] [Also in Group XI] In an electric liquid heater a ball valve 25 is closed by the pressure of water supplied through a pipe 22 to a container 1 divided by partitions 2, 3 with openings 7, into communicating compartments 4, 5, 6, each of which contains a heating element 8 controlled by a bouyant mercury cutout switch 13. As the water rises in each compartment, the heating element therein is brought into action, the heated water being discharged through a pipe 29. When the supply of water is cut off, a spring 26 unseats the ball valve 25 and the heater drains through a pipe 28, thus cutting off the current also. The second Provisional Specification describes a modification wherein the simultaneous closing of the drain valve with opening of the supply valve is ensured by mechanically linking the supply valve handle with the drain valve. Specification 467,668, [Group XXXVII], is referred to.
Patent GB-875310-A (GB)
Title: Improvements relating to electrical gear-change devices for change-speed gearings, especially for motor vehicles
Filed: 1960-02-18
Abstract: 875,310. Change-speed control. DAIMLER BENZ A.G. Feb. 18, 1960 [Feb. 18, 1959], No. 5779/60. Addition to 875,309. Class 80 (2). The electrically-operated change-speed gear described in the parent Specification is so arranged that upon initiation of a gear change the main clutch is disengaged and held so until the change has been completed. The main drive shaft 4 has an extension 8 carrying a lever 9 which, upon operation of the drive motor 5, acts through a telescopic link 10, 11 to move the main clutch members 12, 14 to the disengaged position, and at the same time a suction servo unit 17 is operated by a rod 16 to hold lever 12 in position, a venting valve 18 having been closed by a switch 19 operated by a pin 22 on lever 9. When the gear change has been completed lever 9 returns to its original position with free extension of telescopic link 10, 11 and switch 19 is operated to open valve 18, thus enabling the main clutch springs to effect re-engagement, with the return of members 12, 16 to their initial position. In this arrangement the slipping clutch 7 is fitted on the main drive shaft 4.
Patent GB-511546-A (GB)
Title: An improved means for sealing hydraulic pistons
IPC: B60T11/236
Filed: 1938-02-24
Abstract: 511,546. Pistons. PRATT, J. H., MANLEY, G. E., and GIRLING, A. H. G. Feb. 24, 1938, No. 5826. [Class 122 (i)] A sealing means for hydraulic pistons consists of a resilient split sealing ring which may be made of non-metallic substances such as artificial resins, which is clamped to a seating on the acting end of the piston by a spring-pressed member which is susceptible to the pressures generated. As shown in Fig. 1, the sealing ring 6 is clamped to the lapped face 5a on the piston by the disc 8 and the conical spring 9. In Fig. 2, the flanged portion 11a of the cup member 11 clamps the split sealing ring 6 to the seating 5a. Pressure of the flange on the sealing ring 6 is obtained by the spring 13. A rubber ring 15 has a groove 15a which is in alignment with ports 11b in the cup member 11 so that when fluid is admitted to the groove a radial pressure is exerted on the ring 6. In a further arrangement shown in Fig. 3, a spring pressed annulus 17 with frusto-conical walls 17a exerts a radial and axial pressure on the sealing ring 6. In Fig. 4 the return spring 14 clamps the member 18 to the sealing ring 6, the assembled parts being secured by the washer 19 and split pin 20.
Patent GB-1417612-A (GB)
Title: Tyre-building apparatus
IPC: B29C67/00
Filed: 1973-01-18
Abstract: 1417612 Tyre building apparatus NATIONAL STANDARD CO 18 Jan 1973 [19 Jan 1972] 5925/75 Divided out of 1417611 Heading B7C The subject matter of this Specification is similar to that described in Specification 1,417,611 but the claims are directed to the fact that each segment 8 of the intermediate drum assembly comprises a plurality of supporting elements 62, 63 and a former, which, in the radially expanded condition of the assembly, supports the elements 62, 63 on support surfaces 61. Reference has been directed by the Comptroller to Specification 1,323,778.
Patent GB-124439-A (GB)
Title: Improvements in or relating to Nails or the like Fastening Devices.
Inventor: ROBERT HENRI GRANDSEIGNE
IPC: F16B15/06
Filed: 1919-03-10
Abstract: 124,439. Grandseigne, R. H. March 11, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Nails.-A nail for use with wood, plaster, &c. has a cylindrical shank on one or both sides of which is a projection b. After being driven in the nail is turned by means of a groove d in the head, or by a spanner applied to an angular head, so that the projections are embedded in the material. A circular bead may be formed round the shank at the base of the projection to enable the nail to be more readily turned. The projection may be replaced by a small portion of a screw-thread.
Patent GB-685145-A (GB)
Title: Improvements in or relating to the recovery of carbon black
Inventor: KILPATRICK MYRON ODEN
IPC: B01D47/06
Filed: 1950-03-10
Abstract: <PICT:0685145/III/1> <PICT:0685145/III/2> Carbon black is recovered from gaseous suspension thereof, as a liquid aqueous slurry, by scrubbing the suspension with an aqueous liquid containing a wetting agent, thereby forming a slurry, dividing the slurry into two portions, recycling one portion, without removal of the carbon black thereform, to the scrubbing operation, and withdrawing the other portion as product.  Water or rubber latex may be employed as scrubbing medium and the carbon black itself may act as a wetting agent once an initial slurry is formed.  A concentration of 10-25 per cent by weight of carbon black in the slurry is preferably attained and the product slurry stream may be wet ground.  As shown in Fig. 1, carbon black in gaseous suspension produced in this case as an effluent from a furnace process indicated at 1, and optionally quenched at 7, passes through line 8 to the bottom of a scrubber 9, the scrubbed gases leaving at 11.  The scrubbing medium is introduced at 10 and the resulting slurry, withdrawn at 12 is split into two portions, the major portion being recycled by line 13, either to pipe 18 or admixed with the incoming scrubbing medium through line 19, or the recycled stream may be divided.  The minor portion, preferably 1/5 or less of the recycle stream, is pulverized at 16 and withdrawn as product at 17.  When latex is employed the gaseous suspension may be coated by the introduction of quenching water through pipe 20 and also through pipe 21, thereby reducing the temperature to 250 DEG F. An alternative scrubber is shown in Fig. 2, wherein the suspension of carbon black enters at 32 and passes out through the depending sides 34 of the inner chamber and the curved baffles 35.  The gas then passes through baffles 36, which may be sprayed with water with or without a wetting agent, and is exhausted by fan 38.  Scrubbing medium is introduced at 39 and the slurry is withdrawn at 40.  The recycling arrangements are the same as described with reference to Fig. 1.  Wetting agents employed include "Daxad 11" (Registered Trade Mark), sodium lignin sulphonate, alkali metal alkaryl sulphonates, sulhonated alkylated benzene or naphthalene and alkali metal salts thereof, soaps and saponin: up to 5 per cent and preferably 2-3 per cent based on the carbon black may be employed.  Anti-foaming agents may be included if necessary.  Specification 621,031 is referred to.
Patent GB-540139-A (GB)
Title: Improvements in or relating to the production of magnesium compounds from dolomite
IPC: C01F5/22
Filed: 1940-04-04
Abstract: 540,139. Magnesium hydroxide, oxide and carbonate. CHESNEY, H. H. April 4, 1940, No. 6123. Convention date, April 18, 1939. [Class 1 (iii)] Magnesium hydroxide in the form of particles of size between 0.5 and 2.5 microns is obtained by calcining dolomite at a temperature not above 1150‹C. to produce complete conversion of the carbonates to oxides, slaking to convert the oxides completely to hydroxides and bring- ing a concentrated slurry of the hydroxides into a dilute brine, e.g. sea water, containing magnesium salts, the proportions being such that the aqueous solution is strongly alkaline to phenol phthalein. The precipitation of magnesium hydroxide may be assisted by the addition of a flocculating substance, e.g. starch, gluten or flour, alone or mixed with aluminium sulphate or iron chloride. When the hydroxide is to be converted to basic carbonate the diluted slurry is treated with CO 2  to convert not less than 80 per cent. to magnesium carbonate trihydrate which is subsequently heated to convert it to the basic carbonate. Dead burnt magnesia may be produced from the precipitated hydroxide by calcination at 1450‹-1700‹C., or caustic magnesia by calcination at not more than 1200‹C. Specification 482,339 is referred to.
Patent GB-901668-A (GB)
Title: Improvements in or relating to data sensing and transfer devices
Filed: 1960-02-22
Abstract: 901,668. Electric selective signalling. LANDIS & GYR A.G. Feb. 22, 1960 [Feb. 25, 1959], No. 6154/60. Class 40 (1). [Also in Group XIX] Data recorded as a pattern of printed marks, Figs. 1, 2, on a tape 1, Fig. 3, is sensed photoelectrically and transferred through a recoding circuit to the selector magnets of a punch. The sensing is effected by a pair of photo-cells 7, 8, of which one senses the top two positions a, b, Fig. 1, of each digit and the other senses the bottom positions c, d. A partition 9 prevents interference between the two parts and a lamp 6 illuminates both. The whole sensing head is displaced across the record by a cam 11 acting against a spring 10. The cam-shaft 12 also carries contact discs 14-17, 98 and 109 having co-operating contacts 19-22, 96, 110 which are used to gate out in turn the signals relating to the four digits across the width of the record. The photo-cell 8, Fig. 4, is connected through an amplifier V1 to a flip-flop V2, the output of which is gated with contact 19 to set flip-flop V3 if there is a mark in position a and with contact 20 to set flip-flop V4 if there is a mark in position b. A similar circuit for photo-cell 7 produces signals for positions c and d, each on a " present " or " absent " lead S or W. These signals are applied on eight lines, Fig. 5, and combined in diode gates 75 to give an output on one of ten digit leads each connected through a thyratron to a magnet to punch the appropriate digit in a record card. The circuit then resets and prepares for the next digit. At the end of a line of digits contact 22 closes and the punch feed magnet 88 is energized through thyratron T1 to step the record to the next column. The record 1 also moves to the next line. A further circuit operates through thyratron T2 and magnet 89 to change the card after an appropriate number of columns have been punched. Checking.-A circuit is provided to check that the outputs of the flip-flop V2 on lines 90 and 91 are satisfactory, i.e. one at a high voltage and the other at a low voltage. If they are not an " error " hole is punched in the corresponding column of the card to show that the values punched therein are not reliable. A counter may stop the machine if the number of error holes punched exceeds a predetermined number.
Patent GB-1406371-A (GB)
Title: Forming sealed housings for electrochemical cells
IPC: H01M2/02
Filed: 1973-02-08
Abstract: 1406371 Metal-air cell housing GOTJLD Inc 8 Feb 1973 [25 Feb 1972] 6180/73 Heading H1B The housing of a metal-air cell comprises three components 11, 12, 13 of plastics material shown in their unconnected state in Fig. 1. Fig. 3 shows the components sealed together by the application of pressure and heat generated by an ultrasonic signal, this process causing the plastics material to flow and make a leak-proof seal with a pair of gas-diffusion cathode assemblies 29, 30. Each cathode either contains hydrophobic material or, as shown, has an outer hydrophobic layer 22 or 23 of P.T.F.E., this material being non-weldable. However, the plastics material of the housing components 11, 12, 13 is weldable, examples being: polystyrene, acrylonitrile-butadiene-sytrene, polycarbonate and polyethylene. To facilitate sealing, melt beads 25, 26 may be provided around the periphery of the central component 13. Air reaches the cathodes 29, 30 through openings (Fig. 5, not shown) in the side housing components 11, 12. The cathode assemblies additionally comprise inner separator layers 18, 19 and central collector screens 20, 21 containing catalyst material and carbon black. The anode comprises material 17 and a collector pin 14.
Patent GB-308346-A (GB)
IPC: C21D9/08
Filed: 1929-02-25
Abstract: 308,346. Mannesmannr÷hren-Werke March 22, 1928, [Convention date]. Annealing and tempering.-In a process for heat-treating boring or drilling tubes or rods the tubes &c. are quenched in oil or water and annealed by heating above the Ac3 point, e.g. 810‹ C., and cooling or quenching, the tubes or rods to be treated coming direct from the rolling mills or being subsequently raised to the rolling temperature. The tube &c. may be heated again to 570‹ C. and cooled as before.
Patent GB-830048-A (GB)
Title: Coincident current magnetic switches
Inventor: JR JOSEPH DOUGLAS LAWRENCE
IPC: H03K19/16
Filed: 1957-02-25
Abstract: 830,048. Circuits employing bi-stable magnetic elements. SPERRY RAND CORPORATION. Feb. 25, 1957, No. 6212/57. Class 40 (9). A magnetic switch comprises a matrix of magnetic cores 10 with row and column windings, a bias winding, and individual output windings; each row and column winding being driven by an associated magnetic amplifier. Each magnetic amplifier has a core 9 of a material having a substantially rectangular hysteresis loop, a set winding 12, a reset winding 13 and an output winding 11 connected to a row or column winding. The reset windings 13 are energized in parallel by a source PP-2 while the set windings 12 are connected in series and energized from a source PP-1 during negative half-cycles of source PP-2, as shown in Fig. 4. The re-set windings may be grounded by switches whereby one core 9 of a column winding and one core 9 of a row winding may be switched by a positive half-cycle of the source PP-2. The subsequent positive half-cycle of source PP-1 sets the selected cores back to their initial states and induces an output in their windings 11 which, over rectifiers 26 energize the selected row and column windings to switch the matrix core at their intersection.