baber/WOPTO huggingface dataset:
Patent GB-500620-A (GB)
Title: Improvements in or relating to forced circulation tubulous boilers
IPC: F22B35/08
Filed: 1937-08-10
Abstract: 500,620. Forced-flow steam boilers. BABCOCK & WILCOX, Ltd. Aug. 10, 1937, No. 21973. Convention date, Sept. 18, 1936. [Class 123 (ii)] In a forced-flow boiler particularly for marine use having a contrifugal separator 1, a superheater 11, and a pump 16 returning superheated vapour to the separator, a helical tubular cooler 14 is arranged in the liquid space of the separator through which superheated vapour passes before entering the pump. The boiler comprises a number of gas-heated tube coils 9 fed by a pump 4 from the separator to which is returned a steam-water mixture through one or more tubes 10. Steam passes through the superheater and stop valve 12 to the place of consumption, or part passes through, e.g. an automatically regulated valve 13 and cooler 14 to pump 16 which returns it via pipes 18, 19 to the superheater or pipe 23 to the separator. It may alternatively be introduced into the inlets or outlets of the coils 9 by way of pipe 24 and valve 27 or 26. Control of injected water through a valve 17 regulates the temperature of this recirculated steam. The tube inlets into the separator are tangentially curved or the incoming fluid is deflected as by turbine blading on a ring limiting the rise of the body of liquid up the walls. The float of a level regulator may be located in a coaxial sleeve and an indicator may comprise a U-tube containing ;t heavy liquid and connected at one end to the water space within the sleeve and at the other to a vessel in the vapour space to which feed is introduced.
Patent GB-771323-A (GB)
Title: Improvements in vacuum cleaners
Inventor: DAVIES LESLIE ALFRED
IPC: A47L9/32
Filed: 1954-07-28
Abstract: 771,323. Vacuum cleaner handles. NEPTRIC, Ltd. July 19, 1955 [July 28, 1954], No. 21995/54. Class 61 A vacuum cleaner of the kind comprising a wheeled body housing suction producing means is fitted with a shaft-like handle formed in at least two sections 15, 16, these sections being so coupled together that they can be moved from an end-to-end operative position to the folded position shown, i.e. side by side whilst remaining coupled. Locking means, carried by the handle, are provided for locking adjacent sections in their erected positions. The, two sections of the handle shown are pinned at 19 to ferrules 18 which are joined by a link 21. The locking means consists of a sleeve 23 slidable on the section 15 from the position shown to one in which it abuts against a shoulder 24 on the section 16. In this position the sleeve, which has a sliding fit on the section 15 and on the ferrules, serves to hold the two sections in alignment.
Patent GB-904516-A (GB)
Title: Improvements in information storage apparatus
IPC: G06F7/38
Filed: 1961-06-19
Abstract: 904,516. Digital data-storage. INTERNATIONAL BUSINESS MACHINES CORPORATION. June 19, 1961 [June 22, 1960], No. 21996/61. Class 106 (1). In an array of bi-stable magnetic cores words of predetermined fixed length are stored in columns of the array, as at locations 21 to 25, and words of variable length in rows, as at locations 50 to 56. The fixed length words are read in and out of the array in parallel; are read in by applying half-write currents from generators, e.g. 1 and 8, in conjunction with inhibit currents from generators 34, and are read out by supplying half-reset currents from the generators, e.g. 1 and 8, the switching currents from the cores being applied over sense lines 35 to a register 33. The variable length words are read in and out in series by character. Once read out a word may be re-written by opening gates 70 to 74 or passed to arithmetic unit 75 and afterwards re-written or transferred to arithmetic register 91.
Patent GB-681410-A (GB)
Title: Method of producing n-[(dialkylamino)-alkyl-]-phenthiazines
Filed: 1950-09-07
Abstract: The invention comprises an N-(2-dimethylamino-methylethyl)-phenothiazine melting between 59 DEG and 60 DEG  C., and also the hydrochloride of such phenothiazine melting at 222 DEG  C.  The methyl group is believed to be in the 1-position of the ethyl group.  The invention also comprises the preparation of N-(dialkylaminoalkyl)-phenothiazines by condensing a dialkylamino-halogen-alkane with a phenothiazine in molten condition and in the absence of alkaline condensing agents.  The phenothiazine may be substituted in one or both benzene rings. An example is given in which N - (2 - dimethylamino - methylethyl) - phenothiazine is made by adding a solution of 1-dimethylamino-2-chloropropane in xylene to molten phenothiazine at 200 DEG  C.
Patent GB-586086-A (GB)
Title: Synchronizing mechanism
IPC: H04N1/36
Filed: 1944-11-10
Abstract: 586,086. Picture transmission systems; synchronous movements. FINCH, W. G. H. Nov. 10, 1944, No. 22220. Convention drate, Jan. 19. [Class 40 (iii)] [Also in Group XXXV] In a picture transmission system, synchronism between the receiver and transmitter drums is maintained by operating the receiver drum at an average speed which is the same as that of a synchronous motor which is driven by signals continuously produced at the transmitter and transmitted to the receiver and acting on the motor. Fig. 1 shows the circuit of a receiver in which a recording drum 21 is brought into operation when incoming signals energize relay 45. This energizes relay 66 and rocks lever 61 to move pinion 75, Fig. 2, into engagement with crown-wheel 81 of the differential combination 75, 81, 72. The circuit of the D.C. driving motor 24 for the drum is also closed. Pinion 75 is keyed on the shaft 74 of motor 24 and pinion 72 is rigid with the shaft 71 of a low power synchronous motor 37 which is driven by synchronizing oscillations derived from the signals. If the speed of pinion 75 and drum 21 departs from synchronous.speed, wheel 81 rotates and moves by its spindle 82 and arm 93, gear-wheel 94 loose on shaft 71. This drives a pinion 96, the spindle 97 of which carries the moving arm of a rheostat in the field winding of motor 24. In the alternative arrangement of Fig. 4, spindle 97 carries a contact arm 111 having a contact piece 113 moving between contacts 114, 115. The field circuit of motor 24 includes a resistor 116 and with this in circuit the motor runs too fast so that contact piece 113 is moved to engage contact 114 as well as 115, whereupon relay 122 is energized to short circuit resistor 116 and close a holding'circuit through 115. Motor 24 then runs slower than synchronous speed and piece 113 moves clockwise till it disengages both contacts 114 and 115, whereupon relay 122 releases and resistance 116 is again put into the motor circuit and the motor runs fast again.
Patent GB-718666-A (GB)
Title: Fishing device
IPC: A01K85/14
Filed: 1952-09-04
Abstract: 718,666. Fishing. WRIGHT, G. D. V. Dec. 4, 1953 [Sept. 4, 1952], No. 22289/52. Class 48 A trolling device for fishing particularly for mackerel comprises a plate 1 adapted to be attached to the towed line 4, Fig. 4, as by the provision of a hole in its fore part, the trace 5 with the hook assembly 6 being attached by a hole in the aft part, the plate being slightly curved in the fore and aft direction and boat-shaped in outline so that when towed with the convex face upwards the plate descends into the water and stays below without rotating, rising to the surface if towed with the convex face downwards. A short length of line 7 may be attached to the after end to prevent a too violent veering movement and turning over or spinning of the plate like a spoon bait. As shown in Fig. 3 in transverse section the plate is plane on its concave face 2 and arched on its convex face 3.
Patent GB-720437-A (GB)
Title: Improvements in or relating to slide frames for vibratory sieves
IPC: B07B1/54
Filed: 1952-09-05
Abstract: 720,437. Sifting-apparatus. MIAG MUEHLENBAU UND INDUSTRIE GES. Sept. 5, 1952 [Sept. 8, 1951], No. 22327/52. Class 117. In a vibratory sieve of the type in which cleaning is effected by freely-movable balls, the sieve frame is provided with two sifting elements 5 of differing mesh between which the balls 8 are located. Transverse battens 6 provide compartments for the balls but allow sufficient clearance from the lower sifting element for the material to pass out via the shoot 12. In an alternative arrangement battens may be mounted on both sifting elements facing each other, with a clearance between them smaller than the diameter of the balls.
Patent GB-1041746-A (GB)
Title: Improvements in or relating to fire extinguishers containing dry powder extinguishants
Inventor: HIRST RONALD
IPC: A62D1/00
Filed: 1962-06-12
Abstract: Fire extinguishers having means for expelling their powder charge comprise, as extinguishant, powdered potassium aluminium fluoride and, optionally a lubricant e.g. pptd. calcium aluminium silicate, or silica or silica gel.
Patent GB-242241-A (GB)
Title: Improvements relating to the manufacture of porous masses for storing gases
IPC: C10L3/04
Filed: 1925-09-08
Abstract: The porous filling of vessels for storing acetylene, consists of cellulose, sawdust, kapok or other organic material which has been treated with solutions of reacting substances so as to produce within or on the material a substance which renders the filling capable of resisting local explosions without charring. For example, the filling before or after its introduction into the vessel, may be treated first with calcium chloride solution and then with water glass; or with a copper or zinc salt solution and then with a resin soap solution; or with barium sulphide and ferrous sulphate solutions. After treatment, the filling is washed to remove any substance that might react with the gas to be absorbed or with the liquid solvent.ALSO:The porous filling of vessels for storing explosive gases, such as acetylene, consists of cellulose, sawdust, kapok, or other organic material which has been treated with solutions of reacting substances so as to produce within or on the material a substance which renders the filling capable of resisting local explosions without charring.  For example, the filling, before or after its introduction into the vessel, may be treated first with calcium chloride solution and then with water glass; or first with a copper or zinc salt solution and then with a resin soap solution; or with barium sulphide and ferrous sulphate solutions.  After treatment, the filling is washed to remove any substance that might react with the gas to be absorbed.
Patent GB-1422848-A (GB)
Title: Combined infra-red and air flow drying for photographic materials
IPC: F26B3/30
Filed: 1973-05-10
Abstract: 1422848 Drying photographic materials MINNESOTA MINING & MFG CO 10 May 1973 [10 May 1972] 22441/73 Heading F4G Photographic materials are dried by irradiating them with infra-red radiation and subjecting them to an unheated air flow so that the film does not undergo any substantial temperature increase. In the embodiment shown the materials, such as films, are passed between chambers B, B1 by rolls C, C1 and infra-red lamps E, E1 located at a distance of between 1 and 3 cm. from the materials and provided with reflectors R, R1 which may be U-shaped or semi-elliptical, are located on each side of the materials. Air from sources D, D1 is passed on to each side of the materials and baffles DF, DF1 are provided to shield the rolls C, C1. In further embodiments the air is directed around the reflectors R, R1 by means of baffles or is directed close to the rolls to cool them. The temperature increase of the material is stated to be no more than between 5-10‹ C.
Patent GB-240004-A (GB)
Title: Improvements in and relating to mutes for wind musical instruments
IPC: G10D9/06
Filed: 1924-09-23
Abstract: 240,004. White, A. E., (Schluesselbsrg, G.). Sept. 23, 1924. Wind instruments.-A mute for cornets, horns &c. comprises a cylindrical part 6 with its outer portion turned inwards on an easy curve as at 8, and a conical rear part 10 shaped to fit the instrument. A tube 18 which may carry a cup 20 is slidably adjustable in the neck 9. In a modification, the neck 9 terminates on the outer side of the plane of the joint 13. In another modification, the part 8 is formed with an ogee curve.
Patent GB-896633-A (GB)
Title: Hydraulic luffing gear
Inventor: KERRIDGE NORMAN
IPC: B66C23/72
Filed: 1959-06-30
Abstract: 896,633. Level-luffing jib cranes. STOTHERT & PITT Ltd. June 21, 1960 [June 30, 1959], No. 22485/59. Class 78 (4). The decelerations applied to the jib J, Fig. 1, of a level-luffing crane by a doubleacting hydraulic ram 1 are limited by two pressure relief valves 59, 60, Fig. 2b, which connect opposite sides of the ram piston 7. To move the piston 7 in the direction of the arrow X to luff out the jib the driver operates a control valve to supply oil under pressure to main and secondary ports 25, 24, and to connect a further main port 23 to a return line. A non-return valve 34 is opened by a pilot valve, allowing oil to be exhausted from the left-hand end of the ram. If the ram is allowed to make a complete stroke the port 23 is covered by a damper piston 15. Thus, the jib movement is decelerated since oil can only reach the port 23 by flowing through the small annular space round the piston 15. Circumferential grooves 21 allow oil to reach the port 23 if the piston 15 is off-centre. On the return stroke oil is admitted initially through port 22 and to a lesser extent port 23, until the latter is uncovered, thus providing gentle acceleration. Different acceleration and deceleration may be provided in the two directions by having damping pistons 15, 16 of different lengths and/or cross-section. To limit the pressure which may be applied to the piston in either direction, adjustable spring- loaded by-pass valves 59, 60 are provided in conduits 49, 50 which open on either side of the piston 7. Alternatively the conduits 49, 50 can be formed by using a hollow piston-rod with a coaxial pipe therein. In a second embodiment, Fig. 5, the damping pistons 15, 16 have axial grooves 69, 70 which progressively restrict the flow of oil through ports 23 and 25, not shown. Relief valves 61, 62 in conduits 65, 66 limit the pressure which can be applied to the piston. In a further embodiment the damping pistons are tapered and that part of the piston-rod not connected to the jib is omitted. This modification may be applied to the embodiments described with reference to Figs. 2, 5; in each case the valve assembly would be mounted on the end of the rod attached to the jib as described in Specification 876,274. In the event of a pipe failure the system fails safe. Specification 896,632 also is referred to.
Patent GB-1010561-A (GB)
Title: Print-out photoprocess with merocyanine dyes
IPC: G03C1/675
Filed: 1962-06-12
Abstract: 1,010,561. Photosensitive compositions. HORIZONS Inc. June 12, 1962 [June 14, 1961], No. 22528/62. Heading G2C. A photosensitive composition comprises one of the following merocyanine dyes: 3-ethyl-5 [(3-ethyl-2(3H)-benzox-arolylidene)-ethylidene] rhodanine, 1-ethyl-3-[(3-ethyl-2(3H)-benzoxazolylidene)-ethylidene]-oxindole, 4-[(3-ethyl-2 (3H)-benzoxazoeylidene)-ethylidene]-3-phenyl- 5(4H)-isoxazolene or 3-ethyl-5-(3-ethyl-2(3H)- benzthiazoylidene)-rhodanine and a light sensitive organic halogen compound of formula ACX 3  wherein A is hydrogen, chloride, bromine, alkyl, aryl or substituted alkyl or aryl, and each X is chlorine, bromine or iodine. Exposure to light gives a coloured print-out image which may be enhanced by heating or by removing either the exposed or unexposed areas by washing as these areas are differently soluble in certain solvents. If the exposed areas are removed, the remaining areas may be re-exposed to give a positive image. The composition may be disposed in a binder and used as a self-supporting film or coated on a support. Specifications 959,037, 991,022 and 997,170 are referred to.
Patent GB-1408835-A (GB)
Title: Sanitary towel
IPC: A61F13/15
Filed: 1973-05-11
Abstract: 1408835 Sanitary towels DEUTSCHE DUNI GmbH 11 May 1973 [13 Nov 1972] 22536/73 Heading A5R A sanitary towel comprises an absorbant pad 3 of cotton wool or cellulose material 9 enclosed in a paper casing 11, and an elongated open shell 5 of at least two-ply impregnated paper in which the pad 3 is disposed, bent lateral edges of the shell being connected at 13 along substantially the entire length of the towel to side edges of the pad by adhesion. The cotton wool or cellulose material should have a total weight of about 8 g end incorporates a distribution layer 7 made of a single layer of porous paper. It is enclosed in a casing 11 made from a double-layer wet strength porous paper having a weight of e.g. 23 g/sq m. The shell 5 consists of a double layer of impregnated paper of the same weight which is folded as shown so that the middle part has three layers while the side parts have two layers. The side parts bend around the sides of pad 3, to which they are secured by strands of adhesive 13 along the length of the towel. The ends of the towel are formed by pressing under heat. To make the shell, a single-layer paper without wet-strength is impregnated with e.g. stearic acid which is dissolved in a suitable solvent, e.g. toluene mixed with ethanol, and applied by immersion, rolling or spraying at 2 to 2.5 g/sq m (dry weight). The paper is then converted to a two-ply sheet. The towel is produced in a machine capable of holding five webs, which produces a composite length with the cross-section shown in Fig 2, which length is divided into required lengths, the end parts being formed by flattening and fixing under heat. For attachment, the finished towel may be provided with a double-sided adhesive strip, which may be covered by a temporary protective layer.
Patent GB-964075-A (GB)
Title: Improved slitter for a paper winder or rewinder
IPC: B26D5/02
Filed: 1963-06-06
Abstract: 964,075. Slitting apparatus. DOMINION ENGINEERING WORKS Ltd. June 6, 1963 [Aug. 16, 1962], No. 22659/63. Heading B4B. Apparatus for slitting a paper or like web lengthwise comprises a first transverse support 12 carrying a blade-mounting support 15 for a circular slitter-blade 23, a second, spaced, parallel support 33 carrying a slitter-band 28 having cutting-edges on its axially outer opposite faces, and means for positioning the slitter-blade in operative position with either of the said cutting-edges. To adjust the bladeassembly 11 axially along the support 12, a locking-screw 17 is loosened and the supportbracket 15 is slid along a dovetail bar 13. A post 18 is mounted in a recess in the bracket 15, is vertically adjusted by a screw 22 and locked by a screw 21, and carries a fixed shaft 24 on which the blade 23 is rotatably mounted, together with a spring 25 to urge the blade against the co-operating slitter-band 28. The band 28 is mounted on a hub 29 journalled on the shaft of a driving-motor 30 which is secured to a slidable mounting plate having a locking screw 36. To reposition the slitter-blade 23 to co-operate with the axially opposite edge of the slitter-band 28, the clamping screw 21 is withdrawn, the post 18 is removed and turned through approximately 180 degrees and replaced in its recess and the screw 21 tightened. Since the adjusting screw 22 passes through a slot 38 formed in the top flange of the mounting bracket, it maintains the same vertical setting of the blade 23. The shaft 24 is positioned at a fixed angle 26, as viewed in the direction of sheet-travel, and the blade is positioned at a desired shear angle as viewed in plan, and these angles are maintained, but reversed in sign, when the post 18 is reversed.
Patent GB-855282-A (GB)
Title: Improvements in or relating to structures comprising a shaft received in a recess ina recessed member
IPC: F16D3/224
Filed: 1958-07-15
Abstract: 855,282. Universal joints. DANA CORPORATION. July 15, 1958 [Sept. 4, 1957], No. 22711/58. Class 80 (2). In a constant velocity universal joint of the type in which balls 20 engage recessed races 10, 16 the inner race 16 is connected to shaft 34 by splines 26, 35 and is axially positioned thereon by a circlip 44 retained in a rectangular-section groove 28 in race 16 and pressing against a round-section groove 36 in splines 35. To effect disengagement of the members circlip 44 is expanded into groove 28 by a tool fitted with a series of pins 46 having rounded ends, and inserted axially between the splines, the ends of splines 26 being backed off at 33 for this purpose.
Patent GB-1015796-A (GB)
Title: 3-(1-phenyl-2-propynyl)-4-hydroxycoumarin and method of preparing the same
Filed: 1964-06-02
Abstract: The invention comprises 3-(1-phenyl-2-propynyl)-4-hydroxy-coumarin and the preparation thereof by reacting 4-hydroxy-coumarin with phenylethynylcarbinol in the presence of phosphorus oxychloride.  3 - (1 - Phenylpropyl) - 4 - hydroxycoumarin is prepared by hydrogenation of the above compound, preferably at ambient temperature and pressure in the presence of a platinum or platinum oxide catalyst.
Patent GB-1305095-A (GB)
IPC: F16K27/10
Filed: 1970-05-12
Abstract: 1305095 Making gate valves; forging; extruding SIEPMANN-WERKE KG 12 May 1970 [6 June 1969] 22839/70 Headings B3A B3H and B3P [Also in Division F2] A centre part for a gate valve housing is made by drop forging an upper part with a flange 7 and a rectangular lower block 19 between dies 17, 17<SP>1</SP> and backward extruding the block 19 in a die 20 by means of a ram 22 to form a rectangular lower part. A plate having a surface 20<SP>1</SP> serves to align the flange 7 normal to the axis of the gate and also acts as a stripper for the ram 22. The workpiece may be heated between the forging and extruding steps. A gate valve housing including the centre part is made by welding forged connecting branches 2, 3 into holes formed in the longer sides of the rectangular lower part and fitting valve seats 10 into the inclined ends of the branches. The shorter sides of the rectangular lower part have integral guides (4), Fig. 10 (not shown), for the gate (not shown). Specification 1,305,094 is referred to.
Patent GB-815950-A (GB)
Title: Improvements relating to lathes adapted for shaving
IPC: B23F23/12
Filed: 1957-07-19
Abstract: 815,950. Gear-finishing. SCHIESS A.G, July 19, 1957 [July 31, 1956], No. 22876/57. Class 83 (3). A horizontal or vertical lathe comprises a slide 2 carrying an attachment 4 for shaving a gear 12. The slide is fed longitudinally by a wheel 8, and vertically at a feed or rapid-traverse rate by a lever 9.
Patent GB-360360-A (GB)
Title: A process for testing milk for derangements in its composition
IPC: G01N31/22
Filed: 1930-07-29
Abstract: Milk is tested to detect variations in its composition due to disease or to the presence of colostrum by separately treating samples taken from the four udder teats with a solution containing a peroxide and an indicator, such as dibrom-thymolsulphophthalein (Bromthymol blue), having a transition stage between pH6 and pH8. The indicator consists preferably of 2 per cent hydrogen peroxide, 0,2 per cent bromthymol blue, 15-20 per cent alcohol, and the remainder water.  The hydrogen peroxide may be replaced by other peroxides such as those of the alkalies.  Abnormalities in the milk give characteristic changes of colour and, in some cases, evolution of oxygen from the test solution.