baber/WOPTO huggingface dataset:
Patent GB-157423-A (GB)
Title: Automatic apparatus for returning condensed steam to boilers
IPC: F22D5/10
Filed: 1921-01-10
Abstract: 157,423. Krantz, H., [Firm of]. June 7, 1915, [Convention date]. Addition to 157,422. Feed - water, supplying. - In gravity. feed apparatus for returning condensed steam to a boiler, of the kind in which the steam outlet valve 6 of the feed-chamber is operated by a piston or like device, as described in the parent Specification, the counter-pressure piston 11 of the piston device is acted upon by steam taken from the steam-heating apparatus 13 hrough a pipe 12<1>. The Specification as open to inspection under Sect. 91 (3) (a) comprises also apparatus in which steam is allowed to escape from the chamber through a loaded lift valve in the pipe leading from the float-valve 3. This subject-matter does not appear in the Specification as accepted.
Patent GB-1532694-A (GB)
Title: Fluorimetric demonstration and determination of a reduced coenzyme in an aqueous system
IPC: C12Q1/00
Filed: 1976-01-14
Abstract: 1532694 Determination of reduced co-enzyme AKZO NV 14 Jan 1976 [28 Jan 1975] 01374/76 Heading G1B [ Also in Division G2] In the fluorimetric determination and estimation of the presence of a reduced co-enzyme in an aqueous medium, it is found that the presence of a water-miscible organic and a dispersion of a water insoluble substance in the aqueous medium have a synergistic effect in enhancing sensitivity of the tests. The use of the test for reactions linked with the co-enzymes can also be carried out. The watermiscible organic compound may be 2-methoxyethanol, ethylene glycol, glycerol in ethanol, dimethyl formamide or equal parts of acetone, methanol, ethanol and 2-methoxyethanol. The dispersed water insoluble substance may be a metal salt, for example zinc sulphate, magnesium chloride, calcium sulphate, magnesium acetate or calcium chloride.
Patent GB-250677-A (GB)
Title: Improvements in or relating to distributing-valves for rock drills and like mechanisms
IPC: B25D9/18
Filed: 1925-01-16
Abstract: 250,677. Holman, J. L., and Holman, A. T. Jan. 16, 1925. Valve chests and casings.-Fluid is distributed in a percussive drill or like tool by a double-ended piston valve 16, 17 which works in coaxial liners 19, 20 separated by a two-part bush 22 which forms a bearing for the spindle 18. The liner 19 has an eccentric projection 23 engaging a hole 24 in the casing; the liner 20 is recessed to receive the end of a spring 26 housed in a plug 27 which ensures the closure of the valve cylinder when the fit of the cover common to the cylinder and valve chest is defective. The supply valve 29 is cast integral with the cover.
Patent GB-1057341-A (GB)
Title: Process for the production of 0,0-dialkyl dithiophosphoryl fatty acid amides
Inventor: KOCHMAN WERNER
IPC: C07F9/165
Filed: 1965-01-12
Abstract: Dialkoxyphosphinothioylthio fatty acid amides of formula <FORM:1057341/C2/1> where R1 is C1- 4 alkyl, R2 is H or C1- 4 alkyl and R3 and R4 are H, alkyl, aryl or substituted aryl are prepared by reacting a mixture of P2S5, an alcohol (R1OH) and a monohalogen fatty acid amide at 0-125 DEG  C.  Examples prepare (CH3O)2P(S)SCH2CONHCH3, (C2H5O)2P(S)SCH2CONHCH3 and (CH3O)2P(S)SCH2CONHCH(CH3)2.
Patent GB-157794-A (GB)
Title: New or improved process for the improvement of inferior brown coals and peat
IPC: C10B53/02
Filed: 1921-01-10
Abstract: 157,794. Jacobs, K. W. J. H. July 28, 1919, [Convention date]. Coking and carbonizing.-Partly dried brown coal or peat is freed from water and carbon dioxide and distilled at a progressively increasing temperature at about 250‹ C., tarry distillates are obtained and at about 270‹ C. an exothermic reactions begins, by means of which the distillation is continued. By this means, and a further application of heat to a temperature not exceeding 350‹ C., additional quantities of low-temperature tar are driven over into the receiver. The resulting product is a long-flame fuel. Internal heating with superheated steam-up to 10 per cent of the weight of the material treated may be employed to assure uniform heating, accelerate the removal of distillates and increase the yield of ammonia, acetic acid and methyl alcohol. Specifications 5503/06 and 20975/09 are referred to.
Patent GB-309614-A (GB)
Title: Improvements in and relating to submarine mines, depth charges and other explosive bodies for submarine use
IPC: F42C14/04
Filed: 1917-01-30
Abstract: 309,614. Skipwith, H. L. d'E., and Sturgeon, R. A. Jan. 30, 1917. Mines, marine.-A depth charge is provided with a valve 9 to regulate the flow of water into a chamber 1, the pressure in which at a given stage operates an hydrostat to fire the depth charge. The water inlets are protected by wire gauze 17. The valve plate 9 has a number of holes of different sizes, one of which is brought over the outlet port 11, according to the setting desired; or the valve may be designed to uncover one or more ports. The valve spindle 4 is keyed to a safety member 8 and featnered to a locking disc 13 and to a key 21. The key has lugs 22 corresponding to radial slots in the end wall 18, which allow the key to be inserted and removed. When the key is removed, the locking plate 13 is moved up by a spring 14, and lugs 15 on the plate fit into locking grooves in the end wall 18, thereby locking the valve in an operative position. In any of the operative positions, one of a number of slots in the member 8 lies opposite a collar 6 on the spindle 7 of the hydrostat, which is then free to operate when the pressure in the chamber 1 attains the predetermined value. When the key is inserted and turned to a position intermediate between two active positions, the valve ports are out of register, the member 8 locks the collar 6, preventing any operation of the hydrostat, and the lugs 22 of the key are forced by the spring 14 into tho locking grooves of the end wall 18, preventing the withdrawal of the key.
Patent GB-1199903-A (GB)
Title: Shredding Machine
Inventor: SKELTON LEONARD WILLIAM
IPC: B02C23/04
Filed: 1969-01-10
Abstract: 1,199,903. Shredding apparatus. ACRAL Ltd. 24 Feb., 1970 [10 Jan., 1969], No. 1536/ 69. Heading B2A. To safeguard a document shredding machine from the effects of overload when a cutter shaft is displaced, a pivoted spring- urged lever 9 operates a microswitch 16 which stops the driving motor, (not shown). In normal operation, a roller 8 touches or just clears the periphery of a cutter 1. If an overthick mass of paper is fed to the cutters a shaft 3 of the cutter 1 is displaced, the roller 8 is pushed outwards, the lever 9 is pivoted rotating its shaft 5 so that the switch 16 operates. At the same time arm 10 moves outwards so that a latch 18 drops and locks the lever 9. The motor now cannot restart intermittently. To clear the obstruction the motor is reversed and when the cutter 1 reverses a cam 22 lifts the latch 18, and the lever 9 is returned to its normal position by a spring 12. The machine is thus prepared for normal operation again.
Patent GB-902059-A (GB)
Title: Process for the preparation of dibenzoxazolyl-ethylene compounds
IPC: C07D263/62
Filed: 1961-01-13
Abstract: 902,059. Dibenzoxazolyl - ethylene compounds. CIBA Ltd. Jan. 13. 1961 [Jan. 28. 1960], No. 1543/61. Addition to 835,894. Class 2(3). Di-benzoxazolyl-ethylene compounds of the general formula in which A is a benzene nucleus in which two adjacent carbon atoms are members of the oxazole ring and which may be substituted by chlorine or lower alkyl or low alkoxy groups, are prepared by contacting the corresponding compounds at elevated temperature with a phosphoric acid of formula H n  +  2 P n O 3n  + in which n>1. The process is preferably carried out at a temperature in the range 140-200‹C.
Patent GB-674274-A (GB)
Title: Improvements in or relating to liquid proportioning valves
IPC: G05D11/03
Filed: 1950-01-21
Abstract: 674,274. Float-operated valves. SIMPSON, A. J., and ZWICKY, J. F. Jan. 22, 1951 [Jan. 21, 1950], No. 1631/50. Class 135. Two liquids, e.g. water supplied to a port 13 and a sterilizing liquid contained in a tank 23, are proportioned by being fed through flow-restricting valves 20, 21, respectively, and thence to ports 9, 10 which, in the lower position of a slidable valve member 3, communicate with passages 4, 5 leading to a vessel 43. When the liquid in the vessel 43 reaches a certain level a float 35, movable between flanges 34a, 34b on a tube 34 depending from the valve member, engages the flange 34b and raises the valve member, cutting off, firstly, the passage 5 from the port 10 and secondly, the passage 4 from the port 9. The valve member is then in a position in which a groove 41 is engaged by a spring-loaded ball 39, and a groove 29 communicating with a passage 31 is brought into line with the port 9. Thus, a small flow of one liquid is maintained to raise the level in the vessel 43 to that of a syphon pipe 44 whereupon the contents of the vessel are discharged to a main receptacle (not shown), and the float descends to reset the valve member 3 by engagement with the lower flange 34a. Should the syphon pipe become blocked, either accidentally or by a float-operated valve at its lower end responsive to the level of liquid in the main, receptacle, the continued rise of liquid in the vessel 43 causes the float finally to overcome the resistance to movement imposed upon the valve member by the ball 39 and raise the valve member to a fully closed position in which it is located by the ball engaging a second groove 42. A filter 14 is placed between the valve 20 and the port 9. The level of liquid in the tank 23 is indicated by a float 25, 28.
Patent GB-1237515-A (GB)
Title: Improvements in or relating to electric coffee percolators
IPC: A47J31/053
Filed: 1970-01-13
Abstract: 1,237,515. Indicator lamp. SUNBEAM CORP. 13 Jan., 1970 [10 Feb., 1969], No. 1680/70. Heading F4R. [Also in Division A4] A translucent plastics mounting member for an indicator lamp is a snap fit in an aperture 106 in the wall of a percolater. The member is retained by the protuberances 114 and 115 and the lamp 102 is held by the C-shaped clamping portion 118. The illuminated lamp is visible through the window portion 109.
Patent GB-992028-A (GB)
Title: Non-reciprocal signal translating devices employing the magneto-resistive effect
IPC: H03H7/00
Filed: 1962-01-17
Abstract: 992,028. Magneto-resistive semi-conductor circuits. RADIO CORPORATION OF AMERICA. Jan. 17, 1962 [Feb. 15, 1961], No. 1724/62. Heading H3T. [Also in Division H1] By using an input signal to control a magnetic field which varies the resistance of a semiconductor body connected in series with a power source in an output circuit, the signal is amplified or mixed in a non-reciprocal manner. The arrangement is intended as a lossless low noise inter-stage coupling between tunnel diode or parametric amplifiers or to provide amplification for devices such as masers. As shown in Fig. 1 the arrangement comprises a disc of semi-conductive material 10 with a central electrode 12 and a peripheral electrode 11 by means of which the material is connected in a tuned circuit with a source of D.C. 18 and an output transformer 16. Capacitor 19 provides a path for A.C. across the D.C. source. The disc 10 is placed in a biasing magnetic field provided by magnet 45 and a modulating field from coil 30 connected in the tuned input circuit comprising capacitor 34 and transformer 33. The arrangement may have a signal mixed with the output by injection at terminals 20. In the arrangement shown in Fig. 2, the semi-conductor disc 53 provides a partition between resonant cavities 54 and 55 built round a central conductor 56 having cavity walls 50 and 51. Insulation rings 52 and 63 separate cavity wall 51 from wall 50 and conductor 56 to enable connection of D.C. source 64 which sets up a standing current in cavity 55 by way of disc 53. A bias field for the semi-conductor disc is set up by D.C. passed by conductor 56. An input signal is injected into cavity 54 by loop 67 and the resulting TM mode modulates the resistance of disc 53 and thereby modulates the standing current in cavity 55 to set up resonance in cavity 55 from which output is taken by loop 70. In the arrangement shown in Fig. 3 a travelling wave amplifier has a helix 80 wound about a cylinder or longitudinal strips of semi-conductive material 75 with a central conductor 79. A D.C. source 87 provides a magnetic bias for the semi-conductor material 75 through which D.C. current is driven between helix 80 and conductor 79 by D.C. source 82. A tuned input circuit sets up TM waves by means of coil 90 at one end of the helix 80, the phase velocity of these waves in the helix equalling the drift velocity of carriers in the semi-conductive material 75 Reaction between the waves in helix 80 and semi-conductive material 75 results in progressive amplification A pick-up coil 91 in a tuned output circuit loads the waves at the far end of the device.
Patent GB-1467558-A (GB)
Title: Method of compensating dressing diamond wear and of resetting  the grinding tool to the diamond position on grinding machines  especially internal cylindrical grinding machines
IPC: B24B5/10
Filed: 1976-01-16
Abstract: 1467558 Dressing grinding wheels WERKZEUGMASCHINENKOMBINAT "7 OKTOBER" VEB 16 Jan 1976 [31 Jan 1975] 01730/76 Heading B3D A method of compensating dressing diamond wear and of re-setting the grinding tool 6 to the position of the diamond 5 is characterized in that the position of a dressing diamond holder 4 set up on the grinding machine for a zero dimension 7, to be ground is kept constant by way of a rigid connection of the holder with the workpiece 1 and that the path of rapid infeed 9, 8 of the tool is varied 10, 8 by fine adjusting means in the infeed mechanism of the machine. In apparatus for carrying out the method, the workpiece 1 is clamped in a chuck 2 of a headstock 3 rigid, in the plane of infeed of the grinding tool 6, with the holder 4 of the dressing diamond 5 which is thus held at a constant position 11. The grinding tool is dressed by the diamond 5 and has a rapid infeed from the dressing position 9 to the start of the grinding infeed 8, which continues to the zero diamension line 7 at a constant rate. When wear of the dressing diamond occurs, the start of the rapid infeed is adjusted to commence at the worn dressing position 10 by fine adjusting means, the rapid infeed terminating at the same position 8 of grinding infeed so that the zero dimension 7 remains constant.
Patent GB-1032861-A (GB)
Title: Foam laminates
Inventor: EWING WILLIAM HENRY
IPC: B29C44/56
Filed: 1962-01-17
Abstract: 1,032,861. Laminates. LINEN INDUSTRY RESEARCH ASSOCIATION. April 5, 1963 [Jan. 17, 1962], No. 1794/62. Heading B5N. A foam laminate wearing apparel material comprises a foam layer having grooves in it bonded by adhesive to a knitted, netted or woven fabric. The grooves which may extend through the thickness of the material and which may run in two directions are made by the application of hot wires or discs to the foam. The exemplified foam is polyurethane but rubber may be used.
Patent GB-200120-A (GB)
Title: Improvements in moulds for casting brake blocks and the like
IPC: B22C9/06
Filed: 1922-01-23
Abstract: 200,120. Williams, W. E. Jan. 23, 1922. Moulds; clamping and guiding moulds.- Moulds for casting brake blocks &c. as described in Specifications 16739/15 and 149,118 have their bottoms also movable to allow the released castings to fall out and thus reduce the heating of the mould. A pair of moulds is shown on a single base A and each comprises four pivoted members B- - -E. The inner walls B have aligning pins b<4>, Fig. 2, radiating and stiffening pins b<5> and ejectors H operated by handles h<3> on cranked pins h<1> and handles b<3> to turn them about their pivots b into the vertical position. The outer walls C have trunnions c<2> moved along slides G by levers c<4> so that they fall in to the position shown in broken lines in Fig. 1. The covers E, which have lined pouring holes e<3>, are normally held by a spring yoke F, Fig. 1, or screws f<3>, Fig. 3, but can be turned about pivots e<2 >and the bottoms D, which have renewable pads of refractory material d<5>, are normally held up by detents d<4>, Fig. 1, which .engage the handles d<3>, but fall open when released to allow the casting to fall on to a travelling band below. In a modification, the walls B may be moved towards each other in addition to or instead of moving the walls C outwards. The walls C may carry attachment lugs J, Fig. 3, which become joined to the casting.
Patent GB-1047641-A (GB)
Title: Photographic colloid transfer processes and materials for use therein
IPC: G03C5/315
Filed: 1964-01-16
Abstract: 1,047,641. Photographic silver halide materials; transfer processes. EASTMAN KODAK CO. Jan. 16, 1964 [Jan. 16, 1963], No. 1927/64. Heading G2C. A photographic material suitable for the colloid transfer process of Specification 655274, comprises a support bearing on one side at least two contiguous unhardened silver halide emulsion layers, the uppermost of the layers containing from 40 to 70% by weight of the total silver halide in the layers and from 60 to 90% by weight of the total colloidal binder in the layers, and having a lower weight ratio of silver halide to colloidal binder than the lower layer(s). The emulsion layers may contain a tanning developing agent. In the examples, both emulsion layers contain a developer dispersion comprising 4-methoxy-naphthol and 4-phenyl-catechol. When used in the transfer process of Specication 655274, the materials of the invention give less drop in image density between subsequent copies.
Patent GB-1417801-A (GB)
Title: Integrated single crystal pressure transducer
IPC: G01L1/18
Filed: 1973-01-15
Abstract: 1417801 Monocrystalline pressure transducer BAILEY METER CO 15 Jan 1973 [31 Jan 1972] 1927/73 Heading H1K A pressure transducer comprises a monocrystalline insulating substrate, and monocrystalline piezoresistive material epitaxially grown on the substrate in regions where its resistivity will be varied by pressure applied to the substrate. As described P type silicon is epitaxially grown to a thickness of 2 Á on a 111 face of a spinel or sapphire substrate of cube or cylindrical form and fashioned to form a pattern of piezoresistors by acid or sputter etching through a photolithographically patterned aluminium mask. After removing the mask aluminium tracks are deposited to form interconnections. A semi-conductor amplifier may be grown on or bonded to the substrate and thermistors provided for temperature compensation. Typically the resistors are formed in pairs for connection into Wheatstone or "L" bridges with one of each pair aligned to respond and the other to be insensitive to pressure, as in Fig. 1 (not shown).
Patent GB-387498-A (GB)
Title: Improvements in or relating to tubular heat exchange apparatus
IPC: F28F9/02
Filed: 1932-01-22
Abstract: 387,498. Straight-tube heatexchangers. HEPWORTH, F., 194, Waterloo Road, South Yardley, Birmingham. Jan. 22, 1932, No. 1945. [Class 64 (iii).] In a heat-exchanger having a longitudinally removable tube element band an outer casing a with inlets k, a<1> and outlets l, b<1> undisturbed by removal of the tube element, a fluid-tight joint is effected between the inner and outer elements by an annular sealing ring g which also allows for expansion of the tube element. The sealing ring rests between the tube plate e and the header member k, l.
Patent GB-555303-A (GB)
Title: Improvements in and relating to method and apparatus for determining the concentration of a fluid in a material
IPC: G01N25/56
Filed: 1942-02-13
Abstract: 555,303. Fluid-pressure servomotor-control systems. FOXBORO CO. Feb. 13, 1942, No. 1972. Convention date, Feb. 12, 1941. [Class 135] [Also in Groups XX and XXXVI] A method of and apparatus for measuring the vapour pressure or fluid constituents in a mixed atmosphere or in solid materials used in manufacture comprises subjecting a medium such as some hygroscopic salt as lithium chloride to a source of constant temperature in such a way as to produce a vapour pressure &c. which is equal to that of the ambient atmosphere &e. and measuring the temperature or other characteristic, such as electric resistance, of the medium which temperature &c. is a measure of the vapour pressure. The measure may be that of the relative humidity in place of the absolute humidity. Fig. 4 shows an arrangement whereby the supply of water for humidifying a room may be automatically controlled. The water supply pipe 77 is fitted with a pneumatically operated control valve 75. Two temperature sensitive elements 22a, 22b are suitably located in a room whose relative humidity is to be controlled. Element 22a is supplied with electrical energy and is connected to a pressure responsive helix 26 which tends to wind and unwind as the temperature rises and falls. Element 22b, which measures the ambient atmospheric temperature, receives no supply of electric energy and is connected to helix 25. The helices 25, 26 are connected respectively to bell-cranks 29a, 29b, and 35a, 35b the differential movement of which is communicated to a differential lever 40 arranged as shown. The lever 40 is connected to a baffle plate 47 which coacts with a nozzle 49 which is connected to the air supply and is also moved in relation to the baffle 17 by opposing bellows 59 interconnected by a restriction 65. A relay valve 62 is included pneumatically operated by the output pressure of the nozzle and baffle to control the air pressure applied to the bellows and to operate the control valve 75 to control the water supply to maintain constant the temperature difference between the bulbs 22a, 22b.
Patent GB-491366-A (GB)
Title: A combined stand and holder for electric irons
IPC: D06F79/02
Filed: 1938-01-21
Abstract: 491,366. Stands for hand - irons. FLAHERTY, E., and WHITEHEAD, A., [Representative of WHITEHEAD, W.]. Jan. 21, 1938, No. 1989. [Class 138 (ii)] A stand for an electric hand-iron comprises a tray 2 having feet 3, an insulating lining 5 and a handle 8 pivoted thereto at 7. The handle is shaped as shown and a strip 9 is secured thereto so as to form, with a portion of the handle, a reel on which the flex 11 is wound when the iron is to be stored out of use. When the iron is in use, the catch 14 is released and the handle is folded down to a horizontal position. A stop 13 prevents movement of the handle in the other direction.
Patent GB-907537-A (GB)
Title: Improvements in production of heavy duty paved roadways
IPC: E01C5/22
Filed: 1959-01-20
Abstract: 907,537. Road surface slabs. KELLNER, H., [trading as DEUTSCHE CEMENT-INDUSTRIE H. KELLNER & CO.]. Jan. 20, 1959 [Jan. 24, 1958], No. 2009/59. Classes 87 (1) and 107. A roadway is formed of slabs, Fig. 1, each comprising concrete or similar blocks 2 interconnected by an adhesive elastically-yielding compound 3, e.g. bitumen or synthetic resin concrete, which are laid in a prepared subgrade 7 of mortar composed of granular material and a slightly plastic binding agent, e.g. bitumen. Alternatively the slabs may be formed integral with interstices 5, Fig. 2, between the blocks which do not extend to the bottom plane, and the interstices are filled with the adhesive compound. The continuous base portion of the slab may be reinforced 6. The surface of the blocks may be formed free of pores to allow lifting by suction-pads or the concrete may contain ferro-magnetic material, e.g. steel wool, to allow a magnetic lift. The slabs may be prefabricated or cast in situ.