baber/WOPTO huggingface dataset:
Patent GB-1004083-A (GB)
Title: Improvements in and relating to quartz-to-metal seals
Inventor: BEESON ERIC JOHN GEORGE
IPC: H01J61/36
Filed: 1961-01-10
Abstract: <PICT:1004083/C1/1> A quartz to metal seal for an electric current lead through a quartz member 5 comprises a refractory metal washer 1 of planar form and of substantially circular shape having a central aperture 3, separate current leads 6, 7 connected to diametrically opposite peripheral parts of the washer and extending outwardly from and substantially in the plane of the washer, the washer 1 being embedded in and forming a vacuum tight seal with the quartz member 5 so that a part of the quartz extends through the central aperture 3 to form a bridge or bond between the parts of the member on opposite faces of the washer.  The edges 2 of the washer 1 are tapered and thin resilient protective washers 4 of refractory metal are placed on either side of the washer 1 over the aperture 3. Molybdenum is used both for washer 1 and the foil 4, the thickness of the washer 1 at the aperture being normally 0.005 to 0.009 inch, but may also be up to 0.15 inch.  The edges 2 may be feathered by electrolytic etching to improve the seal.  The seal may be made by collapsing a quartz tube on the washer.  The heated tube may have an inert gas passed there-through and the tube mechanically pivoted on to the washer or one end may be sealed off and a vacuum applied to cause the tube to collapse on to the washer.  Specification 525,965 is referred to.
Patent GB-809050-A (GB)
Title: Improvements in or relating to masonry blocks
IPC: C04B41/48
Filed: 1957-01-10
Abstract: A facing layer is formed on a masonry block by placing in a mould a mixture of a liquid saturated epoxy ether resin having a 1,2-epoxy equivalency greater than 1 and a finely-divided acid-resistant mineral filler, and a hardening agent, the filler constituting between about 50 and 90 per cent by weight of the total of filler, resin and hardening agent introducing the block into the mould, and curing the resin while the block is in contact therewith.  The block may be made from cinders, slag, cement, "Haydite" (Registered Trade Mark), clay, concrete or the like. The preferred filler is sand having a gradation of particle sizes; gravel and alumina can also be used.  The preferred resins are prepared by reacting dihydric phenols with epichlorhydrin in alkaline solution, but 1, 2-epoxy-containing polyethers of polyhydric alcohols can also be used.  The hardening agent may be, e.g. alkalies, alkali phenoxides, metal halides, phosphoric acid and esters thereof, and amino compounds.  Curing is preferably accelerated by heating, e.g. to 150 DEG  C.  The mould may be made of heavy gauge aluminium foil, which may be stripped off after curing.  Specification 792,334 is referred to.
Patent GB-910876-A (GB)
Title: Improvements in or relating to the preparation of cyano compounds
Inventor: YATES JOHN
IPC: C07C255/49
Filed: 1961-01-11
Abstract: The invention comprises 4-carboxy-2:6-dihalobenzonitriles and their sodium and potassium salts and C1-4 alkyl esters, and a method for preparing a 2:6-dihalobenzonitrile by heating a 4-carboxy-2:6-dihalobenzonitrile or a salt thereof to remove carbon dioxide from the carboxy group.  The halogen is chlorine or bromine. 4-Amino benzoic acid is chlorinated or brominated with an alkali metal chlorate or bromate and acetic acid and sodium acetate, to give 4-carboxy-2:6-dihaloaniline, which is esterified either by saturating its solution in an alcohol of 1 to 4 carbon atoms with dry hydrogen chloride, or by reacting it with diazomethane to obtain the methyl ester.  The ester is diazotized by reacting sodium nitrite solution with the ester in sulphuric acid at 0 DEG  to 4 DEG C., and the resulting diazonium compound is reacted with sodium or potassium cuprous cyanide, or a mixture of sodium or potassium cyanide and cuprous cyanide, under alkaline conditions at 0 DEG  to 20 DEG C., to obtain the ester of 4-carboxy - 2:6 - dihalobenzonitrile, which is hydrolysed by boiling with aqueous or alcoholic alkali metal hydroxide to a salt of 4-carboxy-2:6-dihalobenzonitrile.  The salt may be converted to the acid by acidification. 2:6-Dihalobenzonitrile is obtained by heating the carboxy compound or its salt at 150 DEG  to 250 DEG C. with a tertiary nitrogenous base, e.g. pyridine or quinoline, in the presence of finely divided metallic copper, copper bronze or a copper salt, e.g. copper sulphate, carbonate or chromite, and then removing the nitrogenous base by distillation or by precipitation with an acid and extracting the dihalobenzonitrile with a solvent e.g. ether.  Examples describe the preparation of 4-carboxy-2:6-dichlorobenzonitrile and its methyl ester, and decarboxylation to obtain 2:6-dichlorobenzonitrile.
Patent GB-384828-A (GB)
Title: Improvements in combustible firelighters
IPC: C10L11/04
Filed: 1932-04-13
Abstract: 384,828. Moulding firelighters in tubular moulds. BATTYE, B., 14, Laburnum Street, Haslingden, near Rossendale, Lancashire. April 13, 1932, No. 1207. [Class 87 (ii).] Firelighters comprising wood chippings, shavings, &c. impregnated with coal tar distillates are made in a tubular mould a formed of springy sheet material with its longitudinal edges retained in proximity by a latch b or by rings slipped over the mould. A number of moulds filled with chippings &c. are dipped in a molten mixture of equal parts of naphthalene, creosote, and anthracene and placed on a rack to drain, the material setting into a hard block which is readily removed from the mould.
Patent GB-1161151-A (GB)
Title: Process for the Production of IVa and Va Metals of the Periodic System and Their Alloys.
IPC: C22B3/04
Filed: 1967-01-10
Abstract: 1,161,151. Production of metals or alloys. MONTE AMIATA SOCIETA MINERARIA PER AZIONI. Jan. 10, 1967, No. 1313/67. Heading C7D. Metals of Groups IVa and Va of the Periodic System (Ti, Zr, Hf, V, Nb or Ta) or alloys thereof are produced by reducing at least one halide (preferably chloride) of these metals with at least one alkali metal or alkaline earth metal amalgam, the product of this reaction being treated with an aqueous solution containing a substance or substances which combine with the ions of the Group IVa or Va metals to form water soluble compounds, the mercury then being removed from the amalgam by distillation to leave the desired metal or alloy. The treatment solution may be diluted HF (e. g. 10-40% acid) or a dilute solution of a non-oxidizing acid (HCl or H 2  SO 4 ) having a complex former (oxalic acid, tartaric acid, citric acid, salicylic or sulphosalicylic acid) added thereto. Alloys may be made by mixing amalgams prior to distillation or by using mixed halides in the reduction step.
Patent GB-876329-A (GB)
Title: Improvements relating to the manufacture of thermionic valve grids
Inventor: LANE CLAYTON ARBUTHNOT
IPC: H01J19/00
Filed: 1958-01-14
Abstract: 876,329. Making grids for thermionic valves; stretching. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Jan. 14, 1959 [Jan. 14, 1958], No. 1367/58. Classes 83 (2) and 83 (4). Wire coils forming valve grids are stretched preferably beyond the elastic limit by placing around a pair of outer members 11, 12 which are forcedapart by a tapered inner member 17, the members 11, 12 and 17 being shaped so that they are spaced from the sides of the wire coils. The outer members 11, 12 have grooves 13, 14 to receive the support wires of the grids.
Patent GB-1256413-A (GB)
Title: Textile goods dyeing apparatus with vapour cover
IPC: D06B23/14
Filed: 1969-01-09
Abstract: 1,256,413. Paddle dyeing machine. ROME MACHINE & FOUNDRY CO. 9 Jan., 1969 [7 June, 1968], No. 1470/69. Heading D1L. An enclosed paddle dyeing apparatus adapted to be loaded with textile goods from  the rear and unloaded from the front comprises an open-top vat, a perforated basket of the same shape within the vat, the front of the basket being hinged to the front of the vat, a vat cover carried by the basket and comprising slidably opening front and rear doors, a plurality of paddles rotatably mounted on the basket, and basket lifting means. The doors may be manually or hydraulically operated. As shown, a vat 11 contains a basket 20 which may be hydraulically pivoted about a pin 26. On the basket is mounted a plurality of paddles 28 and a cover comprising hydraulically slidable doors 34 and 35, a vapour tight bridging member 36, and end plates 38 and (39).
Patent GB-425099-A (GB)
Title: Improvements relating to spray guns
IPC: B05B7/12
Filed: 1933-08-26
Abstract: 425,099. Spray - producers. DE VILBISS CO., Toledo, Ohio, U.S.A. Aug. 26, 1933, No. 1508 /35. Convention date, Sept. 6, 1932. Divided out of 424,777. [Class 69 (iii)] A spray gun is formed with a spray head B, Fig. 1, detachably secured to the body A by a tubular screw 6 which also serves as a passage for the spraying air, the head of the screw being accessible for manual operation. The head unit B is connected to the body by a shank 4 entering a boss 5 and the members drawn together by the screw 6. The liquid control valve 7 is provided with a stem 8 operated by a member carried by the trigger 9 bearing on an enlargement 12. The trigger 9 has pivoted to it at 11, Fig. 5, a U-shaped dog which engages the enlargement 12 and has upstanding ears 14 which during normal working enter a recess 15 in the body A, but on further turning, as shown in Fig. 3, engage the edge of the recess to turn the dog out of engagement with the valve stem and thus permit the removal of the head B. This action is only possible when the head is slightly withdrawn as shown. The liquid valve is normally closed by a rod 22 bearing on the enlargement 12 and acted on by a spring contained in the removable unit C mounted on a bore in the body A. This unit C comprises a cylindrical casing 19 having a reduced portion 21 with an axial opening for the rod 22 to which a piston 24 is attached. A compression spring 31 within the cylinder bears against the piston 24 and encircles a sleeve 32 which bears against the closure 26. Further details of this are described in Specification 424,777. Air is supplied through the handle of the apparatus and is controlled by a valve 45 operated against the action of a spring 46 by the trigger 9 bearing against a stem 47.
Patent GB-109604-A (GB)
Title: An Improved Lubricator.
Inventor: EMILE PROUEREZ
IPC: F16N21/02
Filed: 1917-02-02
Abstract: 109,604. Piquerez, E. Sept. 15, 1916, [Convention date]. Void [Published under Sect. 91 of the Act]. Force - feed lubricators.-The screwed cap of a Stauffer lubricator has a turned-in flange i to prevent its removal from the base a. and grease is inserted through a filling- opening l furnished with a screwed or spring - pressed valve. As shown, the valve n is fixed to a screwed plug o formed with a threaded opening q to receive the nozzle of a grease pump, and with a cover s. If a spring-pressed ball or conical valve is used, the plug o is dispensed with, the cover s being applied to the threaded opening l.
Patent GB-1451862-A (GB)
IPC: B01J23/755
Filed: 1974-01-15
Abstract: 1451862 Steam reforming JAPAN GASOLINE CO Ltd and NIKKI CHEMICAL CO Ltd 15 Jan 1974 [22 March 1973 20 June 1973] 01842/74 Heading C5E Methane-containing gas is produced by contacting a mixture of at least one hydrocarbon having at least 2 carbon atoms and steam preheated to 250-260‹C. and in a H 2 O:C ratio between 0À9 and 5 with a nickel-containing catalyst which has been activated in a stream of hydrogen gas, has a temperature of 300- 600‹ C., comprises metallic nickel and a solid solution of nickel oxide and magnesia and has a Ni/Mg atomic ratio of from 0À05 to 7À0. The steam reforming reaction can be carried out at 0-100 kg./cm.<SP>2</SP>G. Suitable feeds are refinery off gas, LPG, naphtha and kerosene. The catalyst can comprise up to 70 wt. per cent of α-Al 2 O 3 , SiC, α-quartz or ZrO 2  as a carrier and copper-chromium oxide or copper-chromiummanganese oxide in an amount of up to 25 wt. per cent, based on the amount of metal relative to the content of nickel in the catalyst.
Patent GB-938264-A (GB)
Title: Improvements in reciprocating action pumps for the injection of fuel into internal combustion engines
IPC: F02M59/36
Filed: 1960-01-19
Abstract: 938,264. Engine stop gear. P. E. BESSIERE. Jan. 19, 1960 [Jan. 26, 1959], No. 1860/60. Class 122 (4). [Also in Groups XXVII and XXVIII] In a fuel injection pump in which a piston 2 has an annular portion operating in a cylinder 1a to supply liquid through a valve 24 to the underside of a shuttle 8 which for example controls a by-pass 7, and in which the return from the underside of the valve 8 is throttled by a manually or governor controlled rotatable throttle 50 so that the return of the shuttle 8 is progressively delayed as the engine speed rises, the engine is prevented from running in reverse by a valve 53 which is arranged to block the outlet 52 and passage 12 when the engine reverses. The valve 53 is hydraulically actuated by a connection 56 to a gear pump 54 which may be the feed pump connected to the inlets 4, 19 and which draws through a non-return valve 60 so that pressure is built up when the pump is reversed. When the valve 53 moves to the blocking position an outlet 59 for the delivery from the gear pump is opened. The shuttle 8 in an alternative construction may throttle the inlet passage 4. In a pump of the type in which a shuttle is hydraulically actuated to cause delivery and liquid flows from one end of the shuttle cylinder to the other through a throttle passage, the valve actuated on reversal may be inserted in this passage. In the minimum or zero pass position of the throttle 50 a passage connects the upper passage 12 to an outlet 52, whereby the pump will deliver maximum fuel for starting. Specification 861,754 is referred to.
Patent GB-467684-A (GB)
Title: Improvements in or relating to electric fuses
IPC: H01H85/10
Filed: 1936-01-21
Abstract: 467,684. Fusible cut-outs. HENLEY'S TELEGRAPH WORKS CO., Ltd., W. T., and HOBAN, H. C. Jan. 21, 1936, No. 1929. [Class 38 (i)] A fusible element comprises a fusible narrow portion 1 and wider end portions 2 in the form of expanded metal to enable the arcquenching material to be in more intimate contact with the element to increase the cooling effect. A number of such fuses may be connected in parallel in a cartridge fuse. Specification 466,525 is referred to.
Patent GB-1122484-A (GB)
Title: Control assemblies for water-closet flushing mechanisms
Inventor: BOOTH ARTHUR PRESTON
IPC: E03D5/08
Filed: 1966-01-15
Abstract: 1,122,484. Foot-operated devices for cisterns. PRESSARTS Ltd. 15 Jan., 1966, No. 1997/66. Heading E1C. In a water-closet flushing system comprising a pedal 7 connected to the flushing mechanism through linear draw means 7, the latter extends into the cistern 1 through an opening in the cistern cover for example, and is connected, directly to the operating rod of a piston cylinder 3, a protective enclosure 9a therefor having a part 9 to act as a directionreversing guide. The opening may be the aperture usually for the flushing lever or may be between the cover 2 and the cistern body 1 or in a body wall. The enclosure 9a where straight may be a separate or integral extension tube. The pedal 7 is in a housing 6, which the draw means 4 enters at 8. The draw means 4 is coupled to the rod through a tension spring 5.
Patent GB-698653-A (GB)
Title: Improvements in ophthalmic mountings
Inventor: MARSTERS ALTON KIMBALL
IPC: G02C5/22
Filed: 1952-01-24
Abstract: 698,653. Spectacle frames. AMERICAN OPTICAL CO. Jan. 24, 1952, No. 2018/52. Class 97 (i). In a spectacle frame comprising a central bridge and lens contour following portions on either side thereof, the said portions have, at the rear, adjacent the temporal sides thereof a pair of abutment surfaces arranged to form a V, the outer of said surfaces extending outwardly and rearwardly at an acute angle to the general plane of the lenses, the end portions of the temples being bevelled to substantially fit the abutment surfaces when the temples are pivoted outwards abut pivot means, adjacent the abutment surfaces and spaced rearwardly and inwardly of the apex of the V. As shown in Fig. 6 the end of the temple 18 is bevelled so as to fit against the temporal abutment surface 17 while the inner side surface of the temple fits against the other abutment surface 16, the temple being connected to the frame by hinge members 23, 26. By this means the junction between the temple and frame is concealed from view from the front. In a modification the temporal end of the frame extends beyond the V-shaped recess 15. In the modification shown in Fig. 7, the end 32 of the frame is extended rearwardly to provide a surface 33 against which the end of the temple 18 abuts, the side surface 34 of the temple abutting against the hinge member 23.
Patent GB-1005606-A (GB)
Title: Improvements in or relating to brake apparatus for use with conveyors
IPC: F16D49/16
Filed: 1963-01-16
Abstract: 1,005,606. External shoe brakes. G. A. BLACK, and E. H. HANDS. March 10, 1964 [Jan. 16, 1963], No. 2029/63. Headings F2E and F2F. Brake apparatus for controlling movement of an uphill conveyer has its initial application of the brake automatically controlled by the speed of the conveyer and has means for subsequent progressive application of the brake as the conveyer speed falls below a predetermined value. The apparatus comprises a pair of caliper-type brake shoes 1, 1<SP>1</SP> with pivots linked together at 3 and constrained at 15 by anchorage in an arcuate groove 16 whereby when the drum moves in reverse the shoes can rotate with respect to it and any braking force that has been applied in the forward direction will, on reversal, have a self-tightening effect independent of the coefficient of friction between the shoes and the drum. The shoes are operated by a lever 4 of more than 1 to 1 ratio actuated by a spring rest 5 or a deadweight hydraulically controlled by output from a pump 6 which normally creates sufficient pressure against the actuating device to hold off the brake. The pump 6 may be driven from the conveyer shaft or by a direct coupled electric motor. The pump circuit includes an oil storage tank 8 and is connected to a valve 12 operated by a centrifugal device 13 geared to the conveyer and opening when the speed of the latter falls to a predetermined proportion of its normal full speed, thereby allowing the actuating device to commence operation. A reset button 18 is provided for the valves as the brake can only be released by restarting the conveyer. Specification 701,677 is referred to.
Patent GB-126407-A (GB)
Title: Improvements relating to Electrically Controlled Devices.
Inventor: HEAP ARTHUR CECIL
IPC: F42B3/04
Filed: 1918-02-04
Abstract: 126,407. Heap, A. C., and Field, A. B. Feb. 4, 1918.. Mines, marine.-An electrically-controlled actuating device comprises a vessel containing explosive gases which are fired by an electric circuit causing the disruption of the vessel or the movement of a part of the vessel, thereby actuating or controlling a second electric circuit either directly or through intermediate mechanical means. In the form shown in Fig. 2, the vessel 7 containing the explosive gases and an electric filament for igniting the gases is enclosed in an exhausted bulb 8 to increase the sensitiveness of the ignition. The filament may be of " Wollaston " wire coated with silver, the silver coating being removed over a short length to leave bare platinum where ignition is to take place. The gases in the vessel may be oxygen and acetylene, hydrogen, or carbon bisulphide; and their pressure may be higher or lower than atmospheric pressure. The disruption of the vessel 7 and bulb 8 by the explosion releases spring arms 2, which thereupon close the second electric circuit. In a modification, an additional filament is put in the vessel to heat the gases to near ignition point beforehand. In another modification, the first electric circuit does not ignite the gases, but melts a plug between two chambers containing gases such as phosphine and oxygen respectively and thereby allows these gases to mix and explode automatically. In the form shown in Fig. 5, the disruption of the vessel 16 containing the gases releases the piston 21 of a dash pot 22, which piston, after a given time, closes the second electric circuit through contacts 27, 28. The device may be made to close the second circuit by allowing an electrolyte to flow into an electric battery. These devices may be used for igniting the bursting charges of submarine mines electrically or for electrically releasing a weight or strained spring for firing an explosive charge by percussion.
Patent GB-163407-A (GB)
Title: Improvements in and relating to electromagnetic switches
IPC: H01H50/64
Filed: 1920-01-22
Abstract: 163,407. British Thomson - Houston Co., Ltd., (General Electric Cu.). Jan. 22, 1920. Electromagnetic switches comprise an armature movable by an electromagnet to an operative position against spring or gravity bias, and a separable contact-member having similar positions but less inertia than the armature so that it will move more quickly to its normal inoperative position, means being provided whereby the armature carries the contact member with it when attracted, but allows its rapid independent return when the electromagnet is de-energized. In the form shown in Fig. 1, the armature 22 biassed away from the pole-piece by gravity, and the light contact member 15 biassed away from the fixed contact by a spring 20 are pivoted on a common pivot 14. The armature carries a spring-controlled magnetic catch 21 pivoted upon it. When the winding 11 is energized, the catch is attracted to the armature which moves towards the pole-piece, the catch engaging the contact member and carrying it to the closed position. When the magnet is de-energized the cable is released and the light contact-member is returned rapidly to the ' off ' position, the armature following. In the construction shown in Fig. 4, the catch is in the form of a plunger normally held by a spring 36 in a raised position within an auxiliary solenoid 34 mounted on the armature 28 and connected in series with the main winding. When the windings are energized the plunger is drawn down so that, as the armature is drawn over, the plunger engages with a projection 37 on the contact-member and carries it along to the closed position. When the windings are de-energized the plunger is drawn up and the light contact-member resumes the off position independently of and in front of the armature. In the form shown in Fig. 7, the light non-magnetic contact member 43 has pivoted upon it a light magnetic core 44 passing through the main armature 51. When the armature is attracted, cut away parts thereon engage with the projecting ends of a pin 45 passing transversely through the core and, consequently, the armature carries the core and the contact-member 43 towards the closed position. Before this position is reached, the armature is stopped by the engagement of the projection 46 with the stop 47, and the final closing movement is produced by the attraction of the core independently of the armature. When the coil 42 is de-energized, the spring 49 aided by gravity causes the contact arm to fall away slightly, breaking the circuit, the core moving independently of the armature; further separation ensues, the core and armature moving together owing to the reengagement of the pin 45 with the armature.