baber/WOPTO huggingface dataset:
Patent GB-250799-A (GB)
Title: Improvements in baffles for water-tube boiler furnaces
IPC: F23M5/02
Filed: 1925-07-16
Abstract: 250,799. Babcock & Wilcox, Ltd., (Babcox & Wilcox Co.). July 16, 1925. Baffles. - A baffle for water-tube boiler fur. naces comprises a number of relatively thick metallic plates of quadrilateral form with one or more curved recesses in each side shaped to fit closely against the boiler tubes. Fig. 2 shows such a baffle formed of plates 21, the corners of the plates being arranged to overlap. The plates are fastened together by bolts 22 secured by cotter-pins. The upper and lower parts of the baffle and the sides are formed of plates 26, 27 recessed on the edges facing the tubes. Fig. 6 shows an alternative form of fastening device consisting of a rivet 28 expanded by a plug 29. In the modification shown in Fig. 9, the plates are provided with bosses 30 and are fastened by bolts and nuts. The centre plate of each group of five plates may have a duplicate plate at the rear. The holes in the plates for receiving the bolts may be recessed to receive the chamfered faces of the nuts. Fig. 12 shows a form of bolt 38 for securing the plates comprising a bent portion threaded at 40 to engage with a tool 41 serving to insert the bolt which is secured by a key 42. The bolts are inserted by a tool having a long handle and an adjustable jaw adapted to engage the head of the bolt. Fig. 17 shows a tool for inserting the split cotter-pins and locking them in position. It comprises a tubular handle 57 having a wedge-shape jaw 58 secured thereto and a rod 59 threaded at 60 to engage with a wheel nut and provided with a jaw at its outer end. The cotter-pin 23 is held by a stop 61 and a spring clip 62. When the cotter-pin has been inserted in the bolt 22 the wedge-shape jaw 58 is forced between the legs thereof to secure it.
Patent GB-219808-A (GB)
Title: Combined shovel and riddle
IPC: F24B15/08
Filed: 1923-07-14
Abstract: 219,808. Case, J. T. July 14, 1923. Shovels.--A -combined shovel and riddle comprises an imperforate bottom plate a, two side walls b, and a rear wall c all of sheet metal, and a top riddle portion composed of spaced rods or wires e extending from the rear wall to a transverse carrier piece f, the outer edge of which is flush with that of the bottom plate a. The walls b, c and bottom plate a are made from one sheet of metal, the side walls being provided with bent tongues riveted to the rear wall c that carries the handle h, The rods e pass through the bent over upper part of the rear wall c and are secured in a doubled or folded piece f the bent ends of which are riveted to the upper parts of the sidewalls b.
Patent GB-1394495-A (GB)
Title: Thickened sol
IPC: D06P1/48
Filed: 1973-04-16
Abstract: 1394495 Cationic dye sols GENERAL MILLS CHEMICALS INC 16 April 1973 [14 April 1972] 18294/73 Heading D1B The invention comprises thickened cationic dye sols comprising borax, a cationic dye and as thickener a carboxy C 1 -C 2  alkyl ether, a hydroxy C 2 -C 3  alkyl ether, or carbamylethyl etherof polygalactomannan wherein the molar substitution of the above mentioned substituents is at least 0.1. The sol preferably contains by weight of the sol 0.2-5.0% of dye, 0.15-2.0% thickener and 10 to 85% by weight of borax on the weight of dye. The specified thickeners include carboxymethyl-, carboxyethyl-, carbamylethyl-, hydroxypropyl- and hydroxyethylguar, and carboxyethyl locust bean gum.
Patent GB-130862-A (GB)
Title: A Portable Pan and Kettle Rest or Portable Trivet adaptable to Barless and other Domestic Fire-grates.
Inventor: MANN HARRY
IPC: A47J36/34
Filed: 1918-11-09
Abstract: 130,862. Mann, H. Nov. 9, 1918. Supports for articles to be heated. - A pan, kettle, &c. support for use in connexion with barless and other domestic fire-grates consists of a pair of side frames A connected by top-bars 13 and by a stay bar or bars C, which is situated as shown in order to clear the ash-pan front or other forwardly-projecting parts of the fire-grate. In a modification, the bars B are telescopic, and the side frames A are hinged to them so as to fold under them; to enable this to be done, the bar C is pivoted to the side frames, and is made in two parts connected by pin-and-notch connexions.
Patent GB-476924-A (GB)
Title: Improvements in moulds for the manufacture of hollow articles
IPC: B22C9/24
Filed: 1937-07-01
Abstract: 476,924. Moulds; moulders' tools. ACIERIES DU CENTRE. July 1, 1937, No. 18371. Convention date, July 3, 1936. [Class 83 (i)] In the manufacture of projectiles, bombs, torpedoes and like hollow bodies with walls of required thickness at all points, the core is rigid with the mould. As shown, the pattern b is placed in a flask a and sand packed therein. The pattern has a projection b<1> for centring a cover part d, which becomes the bottom of the flask during casting. The part d has a socket d<2> with screws d<3> for fixing the core after centring. The core comprises a cruciform or like bar f in a socket f<1> embedded in a sand core g. Removable rings or wedges h are used for centring the core as shown, after which the screws d3 are tightened.
Patent GB-794943-A (GB)
Title: A strip feeding mechanism
Inventor: LITTELL FREDERICK M
IPC: B21D43/09
Filed: 1956-06-14
Abstract: 794,943. Feeding webs. LITTELL MACHINE CO., F. J. June 14, 1956, No. 18407/56. Class 100(1) [Also in Groups XXII and XXXIV] In feeding mechanism for feeding continuous strip to a machine, e.g. a punching press, in which feed rollers are intermittently rotated by a hydraulic motor, a brake normally applying retarding pressure to the feed rolls is released when the pressure of the liquid driving the hydraulic motor exceeds a certain value. Intergeared straightening rollers 27 and feed rollers are normally braked by spring-loaded shoes 74, 75 acting on a drum secured to the shaft of the lower feed roller which is driven through a one-way clutch by a rack 47 reciprocated by an adjustable crank 116 rotated by the hydraulic motor 125. A cycle consisting of one or more revolutions of the crank 116 is started by operating a solenoid actuated valve 138 to close a relief valve 123 so that the output of an electric pump is fed to the motor 125 which accelerates the feed rollers. When the pressure in the inlet pipe 124 to the motor builds up, a piston 84 in a cylinder 82 connected to the pipe 124 releases the brake shoes 74, 75. Should the rollers attempt to over-run, the resultant drop in pressure in pipe 124 causes the brake to be applied. At the end of the cycle the valve 138 is released and the relief valve 123 by-passes the liquid from the pump.
Patent GB-867487-A (GB)
Title: Reaction of silicon-nitrogen containing compounds
IPC: C08G59/40
Filed: 1958-06-10
Abstract: Compounds containing at least one epoxy group are reacted with silicon-nitrogen compounds derived by reacting halosilanes with ammonia and/or primary amines.  Epoxy compounds specified are ethylene oxide, styrene oxide, butadiene dioxide, 9, 10-epoxy stearic acid and the reaction products of epihalohydrins with allyl alcohol, glycerol, phenol, bisphenols, or novolaks prepared from phenol, cresols or xylenols and aldehydes.  The silicon-nitrogen compounds, which may be monomeric or polymeric, are prepared by reacting ammonia and/or primary amines such as methylamine, ethylamine, allylamine, ethylenediamine, hexamethylenediamine, aniline, p-phenylene diamine and/or benzylamine with one or more halosilanes.  Halosilanes specified are silicon tetrachloride and compounds of the formula RnSiX4-n where n is 1, 2 or 3, X is halogen and R is H or an organic radical such as methyl, ethyl, lauryl, isopropyl, tert. butyl, cyclopropyl, cyclohexyl, 2-chloroethyl, b -trichlorosilylethyl, phenyl, a - or b -naphthyl, p-chlorophenyl, p-trichlorosilylphenyl, phenethyl, methoxy, ethoxy, tert. butoxy, phenoxy, vinyl, allyl, ethynyl, methylthio, ethylthio, phenylthio, dimethylamino, diethylamino, methylphenylamino and cyano.  The preparation of such SiN compounds is disclosed in U.S.A. Specifications 2,564,674, 2,566,363, 2,579,416-8, 2,650,934.  Trimethyl chlorosilane may be used as a chain-stopper.  In Examples: (1) and (2) CH3SiCl3, (CH3)2SiCl2 and NH3 were reacted together in hexane solution, and were subsequently reacted with a bisphenol A/epichlorhydrin resin; (3) As (2) but C6H5SiCl3 and (C6H5)2SiCl2 were also present in the original mixture; (4) (C6H5)2Si(NH2)2 was reacted with a bisphenol A/epichlorhydrin resin to give an expanded product (see Group V); (5) Ethylene oxide was reacted with SiCl4 in methylal solution to give Cl2 Si(CH2CH2OH)2; this was furthe reacted with NH3 and then with a bisphenol A/epichlorhydrin resin; (6) A polyglycidyl novolak and a bisphenol A/epichlorhydrin resin were mixed and with an amino-silane as in (1); (7) CH2=CH.SiCl3 was reacted with NH3 in methylal solution to give CH2=CH,Si(NH2)3, which was then reacted with a bisphenol A/epichlorhydrin resin; (8) Di-tert. butoxy diaminosilane was reacted with a bis-phenol A/epichlorohydrin resin; (9) SiCl4 was reacted with CH3 NH3 in methylal solution, and the product was reacted with a bisphenol A/epichlorhydrin resin; (10) Phenyl glycidyl ether was reacted with (C6H5)2 Si(NH2)2.  Uses: Laminates (e.g. glass fibres); coating; adhesives; moulding.ALSO:By Example (4) 80% by weight of a bisphenol A/epichlorhydrin epoxy resin of M.W. 1900 and epoxy equivalence 905-985 was melted at 105 DEG C. and mixed with 20% by weight of liquid diphenyl-diaminosilane.  The mixture was heated on an oven at 150 DEG C. and cured in 30 minutes to give, with the aid of the NH3 liberated, an expanded final product of density 0,256 g./per c.c.
Patent GB-315978-A (GB)
Title: Improvements in and relating to apparatus for emptying street gullies and the like
IPC: B65G53/42
Filed: 1928-06-26
Abstract: 315,978. Major, J., and Rogers, S. S. June 26, 1928. Pneumatic collectors.-The suction pipes of tank wagons used for emptying gullies &c. are provided with a shield of rubber &c. to prevent damage to the gullies. The shield may be in the form of a sleeve A or a ring, or one or more buffers attached to the end of the pipe, and may be reinforced with metal. Specifications 493/93, [Class 102, Pumps &c.]; 6919/04; and 278,497, [Class 102 (i), Pumps &c.], are referred to.
Patent GB-252930-A (GB)
Title: Improvement in power apparatus
IPC: F03B13/26
Filed: 1925-07-20
Abstract: 252,930. Assorati, A. July 20, 1925. Buoyancy motors; tidal energy, utilizing.-Power generating apparatus comprises a float 12, Fig. 1, rising and falling with the tide or other liquid, and operating mechanism for periodically and repeatedly bringing the same body of mobile material, e.g. liquid or metal balls, into position to operate a driving wheel 1. The float 12 is operatively connected to a series of elevating buckets 15 in such a manner that a given movement of the float imparts a greater movement to the buckets. The buckets in their lower positions act through stops 52, Fig. 5, and levers 50 to open outlets 46 from reservoirs 38; in the upper position of the buckets, their outlets 24, Fig. 4, are opened by means of levers 26 and stops 30, and the material flows through shoots 33 to a reservoir 77, from which it passes to the wheel 1, and thence through shoots 35 to the reservoirs 38.
Patent GB-293420-A (GB)
Title: An improved laminated core body for electric machines and apparatus
IPC: H02K1/18
Filed: 1928-06-26
Abstract: 293,420. Siemens Schuckertwerke Akt.-Ges., (Assignees of Siemens-Schuckertwerke Ges.). July 6, 1927. [Convention date]. Cores. - The laminations of the core are fixed tangentially, but have a slight radial play to allow for expansion. For this purpose the laminations 4 are held in place by ribs 2 of the crosssection shown and secured to the stator frame 1 bv screws 3.
Patent GB-987727-A (GB)
Title: Improvements relating to pivot-joints
Inventor: FRANKS ALFRED
IPC: E05D7/08
Filed: 1963-05-10
Abstract: 987,727. Pivot joints. HOPE WORKS Ltd. March 19, 1964 [May 10, 1963], No. 18543/63. Heading E2F. A pivot joint for windows comprises two hinge members 10, 11, having plates 12 for attachment to a window and window frame member 10 having a hollow trunnion 13, which may be lined with nylon, in which are two nylon bearing elements 14 disposed either side of a T shaped bolt 15, the elements having wedge shaped inner ends to accommodate a wedge shaped head 16 of the bolt 15 and a wedge shaped projection 18 on the cylindrical section 17 of the member 10, a nut 20 being provided to adjust the axial distance between wedge parts 16, 18 which displaces radially outward the bearing elements 14 into frictional engagement with the inner surface of trunnion 13. In addition a nylon sleeve 22 is provided between the two hinge members. Furthermore the outer surfaces of the bearing elements may form a surface of general frusto-conical or cylindrical configuration, the internal surface of the trunnion being correspondingly formed.
Patent GB-134361-A (GB)
Title: New or Improved Means by which a Wristlet Watch can be used as a Pocket One.
Inventor: MCKELLAR ALEXANDER
IPC: A45C11/10
Filed: 1918-11-13
Abstract: 134,361. McKellar, A. Nov. 13, 1918. Cases, watch.-A case A is provided to receive a wristlet watch B with the face exposed so that the combination constitutes a pocket watch. An elastic or spring band C holds the wristlet watch in place.
Patent GB-993839-A (GB)
Title: Toy projectile which converts to space platform during flight
IPC: A63H27/01
Filed: 1964-05-05
Abstract: 993,839. Toy projectiles. C. F. PALMER. May 5, 1964 [May 6, 1963], No. 18675/64. Heading A6S. A projectile has a nose cone with vanes which are in retracted position during upward projection but are urged into an outward position by internal forces at the top of the flight to produce rotation during fall with the nose cone still pointing upward. In the embodiments, the projectile simulates a space rocket during ascent and a helicopter during descent. The projectile may be hurled into the air by an elastic sling 40, Fig. 1, or by a CO 2  capsule 64, Fig. 8, or by means of an elastic loaded launcher 70, Fig. 10. In Fig. 1 spring-loaded piston 16 presses on the inturned ends 32, 34 of vanes 4. Wind resistance holds the vanes inward during flight, but at the top of the flight the pressure of the spring 20 opens out the vanes 4 ready for the downward flight. The second embodiment dispenses with the spring but has an adjustable elastic band 42 serving a similar purpose. In the embodiment of Fig. 10 a slotted ring 72 retains the vanes in position until fired when wind resistance during flight retains said vanes.
Patent GB-137557-A (GB)
Title: Improvements in portable sheds and like structures
IPC: E04B7/02
Filed: 1918-11-15
Abstract: 137,557. Richards, T. E. Nov. 15, 1918. Roofs.-In portable sheds &c. the roof trusses are supported on posts and comprise rafters, vertical posts i, diagonal braces j, and purlins c, d, e, f, which are secured together by junction fittings, preferably as described in Specification 137,548, and are constructed in uniform sizes so as to be respectively interchangeable. The purlins may be latticed or braced and made in sections and secured to the posts i. The uprights or posts b', the posts i and the rafters may be made of planks in box section. The horizontal tension members k may be of metal. Horizontal diagonal tension members may be provided between the trusses approximately in the plane of the eaves purlins.
Patent GB-150160-A (GB)
Title: Improvements in plumber's torches or blow lamps
IPC: F23D99/00
Filed: 1919-07-29
Abstract: 150,160. Robin, V. J. July 29, 1919. Vaporizing - apparatus.-In a plumber's torch or blow-lamp, the main burner 4 is heated to the temperature required to start the lamp by means of a pilot burner 10 secured to the main burner pipe 6. The pilot burner is provided with a wick 22 leading from the fuel reservoir through a short pipe 11 to a passage 13 in a valve casing 12, and a nut 14 screwing on the casing 12 carries a bent combined burner and vaporizing-tube 18 provided with a burner orifice 20<a>. The nut 14 is filled with 'cotton or other capillary material 15 which extends into the'upwardly inclined portions of the tube 18. The pilot burner can be ignited on opening a valve 23 controlling the passage 13 after a few strokes of the reservoir pump 3. When the burner is sufficiently heated the valve 23 is closed and a valve 5 controlling the main fuel supply is opened.
Patent GB-352216-A (GB)
Title: Improvements in number plates adapted particularly for the control of miners' lamps
IPC: G09F3/06
Filed: 1930-06-20
Abstract: 352,216. Labels or number plates. SVENSKA ACKUMULATOR AKTIEBOLAGET JUNGNER, 17, Riddaregatan, and LINDBLOM, C. G. S., 31B, Kommendorsgatan, both in Stockholm. June 20, 1930, No. 18870. [Class 73.] A device for recording the issue of miners' lamps comprises a pair of number plates 1, 5, the plate 1, which carries the number of the lamp and is normally clamped thereto, being adapted to clamp to the miner's number plate 5 when the lamp is issued. The plate 1 is provided with a bent-round springy portion 4 engaging an aperture 3 formed in the plate, and a similarly shaped aperture 6 is provided in the plate 5 for engagement with the part 4 when the two plates are clamped together.
Patent GB-1380774-A (GB)
Title: Submerged turbine aerator
IPC: B01F7/00
Filed: 1972-04-24
Abstract: 1380774 Aerating liquids WESTINGHOUSE ELECTRIC CORP 24 April 1972 [15 June 1971] 18871/72 Heading B1C Aerating apparatus comprises an impeller 12 formed as a circular platform 22 supporting vanes only on its upper side and means in the form of a sparge ring 16 to feed gas to the lower side of the platform and thus cause the gas to ascend to the lower side of the platform and thence through an outwardly-direction stream of liquid caused by the rotation of the impeller by a motor 30 and gearing 32. A conical fairing 26 is arranged below the platform which is itself concentric with the sparge ring 16.
Patent GB-681819-A (GB)
Title: Improvements in electronic switching circuits
IPC: B23K11/24
Filed: 1949-07-19
Abstract: 681,819. Valve relay circuits. SOLOMON, J. L. July 19, 1949 [Oct. 29, 1948], No. 18982/49. Class 40 (vi). [Also in Group XXXV] Control potentials for the firing valves of welding ignitrons are obtained from the cathodes B, C of parallel connected thyratrons 50, 51 and from the tapping A of a potentiometer 34, the grids of the controlled valves being connected to B, C and their cathodes to A. The " on " and " off " periods of welding are determined by timing circuits 61 to 63 and 37, 38, 52 respectively. The thyratrons, in series with a resistor 48 and normally conducting valve 46, shunt the potentiometer 34 and are supplied from D.C. lines 32, 33. A biasing arrangement comprising resistors 54, 55, 73 and a commutating condenser 74 provides for operation of the thyratrons such that only one is conductive at a time and that conduction switches to the other when their common anode circuit is momentarily interrupted by the application of a hold-off voltage pulse to valve 46. The cathode of the conducting thyratron is at about the same potential as tapping A, whilst the other cathode is relatively negative. A selected proportion of this potential difference appears across condenser 74 and, when valve 46 is rendered non-conducting, the condenser discharges through resistors 54, 73, resulting in positive bias now being applied to the previously non-conducting thyratron and negative bias being applied to the other, so that their conduction is switched when anode voltage is re-applied. To effect a weld an initiating switch 39 is opened, thereby allowing the condenser 52-which was previously charged by a battery 36-to discharge through resistors 37, 38. Thyratron 41 consequently conducts, under the control of an adjustably phased peaky voltage injected by a grid transformer 42, and connects resistor 53 (and a part of 63) in shunt with resistor 48. The resulting increase of current through resistor 54 or 73 causes the appropriate firing valve to conduct until such time as a thyratron 64 conducts to apply the blocking voltage pulse (by transformer 65) to valve 46, the thyratron conducting under the control of an adjustably phased peaky grid voltage when condenser 61 has been charged to a sufficient voltage over resistors 62, 63 from a voltage picked off resistor 53. Condenser 52 is also charged over rectifier 57 from resistor 53, so that when valve 46 is rendered non-conducting the condenser is effective to prevent further conduction of thyratron 41 for a time determined by discharge resistors 37, 38. Switching of thyratrons 50, 51 has also occurred to render the firing valve again non-conducting. Thyratron 41 eventually re-conducts and the cycle repeats, subject to any delay which may be imposed by a rectifier circuit 78 to 80 which is energized from coils 17, 18 of the welding transformer primary and which prevents re-ignition of thyratron 41 (by biasing grid 81) until the current through these coils has completely disappeared. Specification 654,583 is referred to.
Patent GB-220331-A (GB)
Title: Improvements in and relating to variable-speed gearing
IPC: F16H61/662
Filed: 1924-08-11
Abstract: 220,331. Erban, R. Aug. 10, 1923, [Convention date]. Variable-speed friction gearing; controlling; reversing - gearing. -The variable-speed gear comprises two sets of rollers 3, 3<1>, Fig. 9, arranged in series, which rollers are tilted to vary the speed. There is a single wedging device for the two sets to maintain frictional thrust, which comprises balls 4 in inclined recesses through which the power passes, the balls tending to ride out of the recesses as described in Specification 189,799, [Class 80 (i), Gearing, Belt, &c.]. The rollers 3 &c. are preferably supported in segmental blocks 16. 17, Figs. 3 and 4, which are supported with radial play in slots 8<1> in a carrier 8. The tilting is effected by arms 18, Fig. 9, the arms 18 of each set being connected to a control disc 46, or 46<1>, each connection being a fine screw 2,2 by which adjustment can be made tc distribute the load. The control discs 46, 46<1> of the two gear sets are operated through levers 48, 48<1> resting on cams 49, 49<1> operated by a control lever 50. This lever 50 may be operated manually or automatically or both. Thus the lever 50 may be connected through a damper 54, Fig. 10, to a point 63 in a lever 62, the position of the point 63 determining the speed ratio. The upper end of the lever is connected to an arm 57 which is moved automatically by the resistance of, say, a vehicle acting against a spring 58. The lower end of the lever 62 is connected to the accelerator pedal 61. Position 63<1> corresponds to the highest speed. Reversed driving takes place when balls 31, Fig. 9, are restrained against planetary motion when a brake 35 is applied to a cage 32 supporting the balls. The balls are kept pressed between driving and driven discs 6, 1 by the wedging device 4. When a clutch 33 is brought into action, the train 6, 31, 1 turns solid for the forward drive.
Patent GB-743941-A (GB)
Title: Improvements in or relating to manufacture of propyl nitrate
IPC: C07C203/04
Filed: 1953-07-10
Abstract: Propyl nitrate is prepared by a method comprising reacting propyl alcohol directly with a nitration mixture, containing sulphuric and nitric acids, the sulphuric acid being more than 50 per cent by weight of the mixture, the amount of water present in the mixture being not more than 14 per cent, the amount of nitric acid present in the mixture being at least equal to the stoichiometric requirement to esterify the alcohol and the ratio by weight of water to sulphuric acid in the final esterification mixture being not more than 0.35 to 1.  The nitration is preferably carried out at temperatures between about -8 DEG  and 10 DEG  C. and the process may be carried out continuously.