baber/WOPTO huggingface dataset:
Patent GB-629573-A (GB)
Title: Hydraulic press for extruding metal
IPC: B21C23/21
Filed: 1947-08-21
Abstract: 629,573. Extruding. LOEWY ENGINEERING CO., Ltd., and SALTER, F. S. Aug. 21, 1947, No. 23156. [Class 83 (iv)] An extrusion press which is hydraulicallyoperated and has a billet container adapted to be moved into billet-receiving position in the direction of the pressing stroke, is characterized in that the ram is returned to its initial position after an extrusion operation by the hydraulic actuating means which moves the container. As shown, the press comprises a single-acting main ram 10 in a cylinder 11, and a double-acting auxiliary ram 12 in a cylinder 13. Secured to the auxiliary ram 12 is a mandrelholder 30 which passes through the main cylinder and serves as a guide for the ram 10. A mandrel 29 secured to the end of the holder 30 is surrounded by an annular press stem 28 secured to the ram 10, and the stem 28 is surrounded by a container 25 in a holder 15 coupled by tie-rods 16 to a cross-head 17 detachably secured to the auxiliary ram 12 by a U-shaped coupling 18. Positioned in front of the main ram, to which it is secured by the usual columns, not shown, is a platen 14 containing a die-holder 26 and die 27. In operation, and starting from the position shown in Fig. 1, a tubular billet B and a press piece 31 are positioned between the die and container and the auxiliary ram 12 is operated so that both the container and the mandrel are moved relatively to the main ram and up to the platen 14, so that the billet B is received between the container and mandrel and the conical end of the mandrel projects into the die 27 to form an annular extrusion orifice. By operating the main ram, the blank is now extruded into the form of a tube. The container, mandrel and main ram may be withdrawn together by n, reverse movement of the auxiliary ram, and the discard may be removed from the end of the extruded tube by a saw or other cutting device. By removing the U-shaped coupling 18, the mandrel may be advanced through the container and by adjusting the position of the cross-head 17 on the rods 16 by means of nuts 19, the position of the mandrel relative to the container and hence relative to the die may be altered to vary the thickness of the extruded tube.
Patent GB-1057735-A (GB)
Title: Improvements in or relating to apparatus for the detection of gases
Inventor: BAKER ALAN RICHARD
IPC: G01N27/16
Filed: 1964-06-04
Abstract: 1,057,735. Gas analysis. MINISTER OF POWER. Aug. 26, 1965 [June 4, 1964J, No. 23181/64. Heading G1N. In apparatus for analyzing a gas mixture for a particular component using an electrically heated catalytic detector element to induce combustion of the gas component, the detector element 3 is mounted in a chamber 2 of a brass block 1, separated from an annex 15, 16 by a gauze disc 8 which maintains a stagnant layer of gas causing the test gas to diffuse through it at a steady rate. The test gas mixture is introduced from the top via a diffusing disc 18 of sintered steel, or via a duct 11 and a diffusing ring 12 of sintered steel. A similar detector may be used as a compensating element in a bridge circuit with element 3, measuring the change in resistance and thus the temperature of element 3.
Patent GB-1186187-A (GB)
Title: Improvements in or relating to Water Borne Desalination Apparatus.
Inventor: JOHNSON KEITH DAVID BEBB
IPC: B01D3/06
Filed: 1966-05-24
Abstract: 1,186,187. Mobile water-borne desalination plant. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. 21 July, 1967 [24 May, 1966], No. 23229/66. Headings B7A and B7S. Means for delivering desalinated water to a reservoir comprises a mobile water borne vessel (e.g. a nuclear powered tanker) equipped with a desalination plant, means (in the vessel or in a towed vessel) for temporarily storing at least part of the output of said plant, and means for discharging water from the storage means into a connection to the reservoir.
Patent GB-1034816-A (GB)
Title: Polyurethane resins
Inventor: HALL RICHARD WILLIAM
IPC: C08G18/67
Filed: 1962-06-16
Abstract: An air drying lacquer is produced by reacting an organic polyisocyanate with a polyhydroxy compound containing at least one b -g  ethylenically unsaturated ether group and dissolving in a lacquer solvent.  The b -g  ethylenically unsaturated ether group is defined as having the skeletal formula <FORM:1034816/C3/1> in which the double bond does not form part of an aromatic or conjugated system. Polyhydroxy compounds specified are:  sorbitol triallyl ether, sorbitol tetraallyl ether, glycerol monoallyl ether, pentaerythritol diallyl ether, pentaerythritol monoallyl ether and trimethylol propane monoallyl ether.  The reaction may be controlled by incorporating a monohydrin alcohol, e.g. benzyl alcohol.  In Example (1) tetra allyl sorbitol, benzyl alcohol, tolylene diisocyanate and quinoline (catalyst) were mixed together, allowed to react and the product dissolved in xylene and a cobalt drier added.
Patent GB-517598-A (GB)
Title: Improvements in or relating to projection screens
IPC: G03B21/62
Filed: 1938-08-08
Abstract: 517,598. Projection screens. BAIRD TELEVISION, Ltd., and BENTLEY, L. C. Aug. 8, 1938, No. 23331. [Class 97 (i)] A projection screen comprises two sheets of transparent material, e.g., glass or synthetic resin, each having one dispersive surface, the dispersive surfaces being adjacent. One sheet may have a ground surface, and the other a surface which is ground, irregular, or formed into small pyramids or truncated pyramids. The surfaces may have convex flutings, either arranged vertically on one sheet, and horizontally on the other, or all parallel. The edges of the sheets may be sealed together to prevent foreign matter from getting between them.
Patent GB-353715-A (GB)
Title: Improvements in telescopic umbrellas
IPC: A45B19/04
Filed: 1930-08-02
Abstract: 353,715. Umbrellas. HAUPT, H., 22, Augustastrasse, Wilmersdorf, and TASCHENSCHIRM KNIRPS, GES., 22, Tempelhofer Ufer, both in Berlin. Aug. 2, 1930, No. 23332. [Class 134.] In telescopic' umbrellas wherein stick sections 8 .. 11, and rib sections 1, 2, are telescopic, and wherein stretchers 6 are pivoted to the outer rib sections 2, and are supported by auxiliary struts 20, the struts 20 are freely slidable in the frame at their upper ends, and are formed with knees 26 to bear against the stretchers in the closed position to facilitate opening. The struts 20 may be pivoted either to slides 25 mounted on the rib sections 1, or to a sleeve sliding on the main stick. The stick sections are locked in the extended position by catches 12, 13, 14, and catches 15, 16 are also provided to prevent relative rotary movement. On depression of the catch 12, the section 8 can be slid up to depress the catches 13, 14 to collapse the stick. The upper section 11 is larger than the section 10 and is guided thereon by a pin 21 secured to a piston-like member, the pin sliding in a slit 22 to prevent rotary displacement. Where the struts are pivoted to a sleeve sliding on the main stick, the section 11 is adapted to offer frictional resistance to its movement on opening so as to extend the outer rib sections initially. The stretchers 6 are pivoted to a main runner 18 which is locked in the open position by the catch 14, and in the closed position by a catch 23 provided with an operating nose 24. On collapse of the stick, the runner 18 slides over the nose 24 to the bottom of a tubular handle 17 which is connected to the stick section 8 and is adapted to receive the lower portions of the stretchers 6. In a modification the stick section 9 may be connected to a piston-like member by a pin guided in a slit in the section 8, the piston sliding within the handle 17. In this modification, the runner is locked in the closed position by a catch fixed to the section 9 and protruding through the slit in the section 8, so that it remains in an operative position when the stick is collapsed, and also ensures that the stretchers and struts are first extended when the stick is extended.
Patent GB-1097077-A (GB)
Title: Strengthening of glass
Inventor: RAY NEIL HUNTER
IPC: C03C21/00
Filed: 1965-06-01
Abstract: Glass is strengthened by subjecting it to the action of (a) at least one etching agent dissolved in at least one molten salt; and (b) a melt containing Ag+ ions, in which at least 90% of the cations are Na+ ions.  Step (b) may be performed at the same time as or after step (a). Etching agents are defined as substances that can remove a thin uniform layer from the glass without giving rise to H+ ions or other ions having greater affinity for the glass than cations in the melt-system in which the agent is dissolved. Etching agents include fluorides and borofluorides of sodium and potassium, ammonium fluorosulphonate and silver fluoride.  In step (b) there is 0.5-5.0% Ag, added either as the metal or as a salt, e.g. AgNO3.  The useful temperature of (a), or (a) and (b) jointly, is 250 DEG -450 DEG  C.; that of (b) is 200 DEG -400 DEG  C. The glass may be tempered and strengthened by preheating to just below its softening point, e.g. to 600 DEG -700 DEG  C. and then performing steps (a) and (b).  After treatment the glass may be cooled, washed and dried.
Patent GB-162225-A (GB)
Title: Improvements in differential gearing
Filed: 1920-08-09
Abstract: 162,225. Thornton, A. A., (Nogrady Differential Co.). Aug. 9, 1920. Differential o r balance gearing is arranged to transmit a solid drive when a vehicle is running straight, and when on a curve, the over. running outer wheel unlocks the gear, which then works differentially. Planetgears 11 carried by a driving gear or housing 4 mesh with side bevel gears 12, 13. Caps 26, 27 inter. posed between the driven part axles slide on straight feathers on these axles and are formed externally with spiral feathers 24, 25 of opposite hand engaging like grooves in the bosses of the gears 12, 13. When running straight ahead, the gears 12, 13 are thrust into clutch engagement with friction rings 18, 19 carried by the housing. When one axle begins to overrun, its spiral withdraws its side gear from engagement, permitting differential action.
Patent GB-1457357-A (GB)
Title: Structures for redicing the reflection or transmission of sound energy and method of utilizing same
IPC: E01B19/00
Filed: 1974-05-24
Abstract: 1457357 Sound insulating structures ASAHI KASEI KOGYO KK 24 May 1974 [24 May 1973] 23363/74 Heading E1W [Also in Division F2]  A sound insulating structure comprises a wall 1, a plurality of spaced parallel ribs 2 across one surface thereof and a corrugated cladding 4 applied over the ribbed surface and having a plurality of apertures 3 therein. The spaces defined by the ribs wall and cladding may be filled with glass wool and closed by an edge rib 5. The wall 1 may be concrete, iron or aluminium and the cladding is preferably metal, and may be laminated.
Patent GB-317636-A (GB)
Title: Improvements in or relating to tailstocks for lathes and like machinery
IPC: B23B23/00
Filed: 1928-08-14
Abstract: 317,636. Drummond, A. Aug. 14, 1928. Tailstooks.-The tailstock spindle of a lathe, milling, grinding or like machine is hydraulically fed and locked. The spindle 5 carries a piston 10 in a double acting cylinder 9 screwed at its front end to a clamping- .collet 7 and normally pressed forward by a spring 14. Ports 16 communicate with a three way reversing valve 19 preferably arranged for operation by the elbow or foot of the operator. In operation, when the centre 6 is forced into engagement with the work the pressure rises and the cylinder is forced back against the spring pressure locking the spindle 5 by the collet 7. In a modification, the spindle is fed by a rack 42, Fig. 2, and locked by a clamping-screw 52. A pinion 44 connects the rack to a second rack 43 formed on a double acting piston in a cylinder controlled by a reversing valve 47 ported as shown. When the centre engages the work the rise of pressure opens a spring loaded valve 45<1> to admit pressure to a second cylinder 50 for rack and pinion operation of a nut 55 on the clamping- screw. Reference has been directed by the Comptroller to Specification 324,042.
Patent GB-262871-A (GB)
Title: Improvements in wall boxes for electrical switches
IPC: H02G3/18
Filed: 1925-09-21
Abstract: 262,871. Tucker, J. B. Sept. 21, 1925. Bases, boxes, and cases.-In order to position correctly the cover plates of wall boxes contain. ing electric tumbler switches which are adjust. able therein by being mounted on adjustable grids or plates, brackets are provided, each bracket being loosely mounted on the adjusting screw for the grid or plate and being adapted to receive the fixing screws for the cover plate. As shown in Fig. 2 the adjusting screws c for the grid or plate d carrying the switch e each carry a bracket b of the form shown in Fig. 3 having an aperture b<5> in its upper flange into which projects loosely the head of the screw c and a slot b<5> in its lower flange engaging loosely a reduced portion c<1> of the screw c. The upper flange of the bracket contains a tapped hole b<4> so that after the screws c have correctly adjusted the switch relatively to the wall surface, the cover f may be secured in position by screws g engaging the tapped holes b<4>, the brackets b having sufficient lateral play to enable screws and holes to be brought into register. Additional securing means such as the ring h may also be employed. Two adjacent brackets or all four brackets in one box may be united by suitable connection between their top or bottom flanges. In a modification the brackets b may be loosely mounted immediately above the grid or plate d.
Patent GB-1000847-A (GB)
Title: Multi-ply diamond-folded block bottom paper bag
IPC: B65D30/18
Filed: 1962-06-19
Abstract: 1,000,847. Block-bottom multi-ply bays. A. WINDMOLLER, and M. GENNERICH, [trading as WINDMOLLER & HOLSCHER]. June 19, 1962 [June 22, 1961], No. 23512/62. Heading B8K. A cover sheet 11 (Fig. 1), with a thermoplastic coating on one side, is heat sealed at 13, 16, 17 to the block-bottom of a multi-ply bag 1 before the side flaps 18, 19 are folded in: this prevents adhesive used in securing the flaps 18, 19 from contaminating the contents of the bag. In the form shown in Fig. 1, the sheet 11 is welded to a valve sheet 8 adhesively secured at 9. The plies may be staggered, as in Fig. 1, or the stagger may be in the reverse sense, as shown in Fig. 5, so that the inner plies are shorter than the outer. In the latter arrangement, sheets 26, 27, lined with plastic, are secured by adhesive 28, 29 to the inner ply and the cover sheet 30 is then heat sealed at 32, 33 to these. Where the plies are staggered in one sense at one side of the bag and in the opposite sense at the other side, one of the sheets 26, 27 is omitted.
Patent GB-279603-A (GB)
Title: Improvements in or relating to ball cocks or valves for use in hot or cold water supply cisterns or tanks
IPC: F16K31/18
Filed: 1926-09-25
Abstract: 279,603. Taylor, T. W. Sept. 25, 1926. Cistern supply valves. - A ball cock or valve 1 is attached to an elbow pipe connection 3 meeting and secured to a pipe coupling 5 at the top of and outside a hot or cold water supply cistern or tank. Associated therewith may be a second elbow connection 2 and one or both pipes may be flanged to engage the cover 4 or a cross plate or corner piece of the tank. The valve outlet may be provided with a screwed or integral delivery connection 6.
Patent GB-638313-A (GB)
Title: Improvements in and relating to methods of preparing organopolysiloxanes
IPC: C08G77/00
Filed: 1947-08-27
Abstract: A polysiloxane resin is prepared by forming a mixture of halogenosilanes capable of forming a resin upon hydrolysis and condensation, the mixture being prepared without a solvent and including at least one monovalent hydrocarbon-substituted tri-halogenosilane, and directing the mixture into a violently stirred zone of a mixture of ice and water kept below 5 DEG  C. during the addition, the amount of water present being at least three times by weight the amount of the mixture.  The products are soluble in ethyl alcohol and acetone.  Mixtures including e.g. tetrahalogenosilanes may be used.  The agitation may be carried out by a propeller stirrer revolving at 500 to 1500 r.p.m. and the halogenosilanes, e.g. methyl or ethyl trichlorosilane, may be introduced into the ice and water directly into the blades of the stirrer.  Examples describe the hydrolysis of (1) a mixture of 81 mol. per cent methyl trichlorosilane and 19 mol. per cent dimethyl dichlorosilane; (2) an equimolecular mixture of methyl trichlorosilane and dimethyl dichlorosilane; (3) a mixture of 85 mol. per cent of methyl trichlorosilane, 10 mol. per cent dimethyl dichlorosilane and 5 mol. per cent phenyl trichlorosilane.  The product of (2) may be dissolved in toluene, and with the addition of zinc oxide used as a lacquer.  The resin of (1) is in example (4) dissolved in acetone, asbestos is added and the mixture pulverized and dried, and moulded at 150 DEG  C.  In example (5) a resin prepared from 80 per cent methyl tri-chlorosilane and 20 per cent dimethyl dichloro silane is made into moulding compositions containing asbestos and cured at 170 DEG  C., in some cases with zinc oxide as curing catalyst or with baking at 170 DEG  C., and the mouldings compared as to physical properties with mouldings from resins according to Specification 585,627.  As well as zinc oxide, lead naphthenate, lead oxide, hydrochloric acid and ethyl borate are specified as curing catalysts.  Specifications 542,655, 544,143, 548,911, 548,912, 551,649, 572,230 and 585,628 also are referred to. The Specification as open to inspection under Sect. 91 comprises also an example in which methyl trichlorosilane alone is hydrolysed in a rapidly stirred slurry of ice and water.  The hydrolysis of a mixture comprising (a) at least 50 mol. per cent of methyl trichlosilane and (b) diphenyl dichlorosilane is also referred to.  It is also stated that the method of the invention is applicable to the hydrolysis of any organo-halogensilane of the formula RnSiX4-n, where R is a substituted or unsubstituted saturated hydrocarbon radical, e.g. as in Specification 585,627, X is chlorine or bromine, and n is 1, 2 or 3.  This subject-matter does not appear in the Specification as accepted.
Patent GB-621579-A (GB)
Title: Improvements in or relating to a liquid storage and dispensing system
IPC: F02M37/10
Filed: 1946-08-12
Abstract: 621,579. Liquid meters ; liquid-storage tanks. STEVENS, A. H. (Martin Co., G. L.). Aug. 12, 1946, No. 23820. [Class 69 (i)] [Also in Groups XXVIII, XXXVII and XXXVIII] A liquid storage and dispensing system comprises a number of tanks 1, each having a sump 4 extending below the bottom of the tank and containing a pump 8 and a metering and controlling means 7. The controlling means 7 consists of a float 16 moving within a tube 12 having helical slots 20. As the float rises or falls, pins 19 engaging the slots 20 cause it to rotate turning with it a guide rod 15 which moves a contact arm 21 over a rheostat 22. Thus, depending upon the level of the. liquid in the tank, a varying resistance is connected in series with a meter 23. Each pump is controlled by a relay, such as 26, which is opened when the float, on entering the sump, causes the arm 21 to move on to an insulated portion 24, so breaking the circuit through the solenoid. The pump of the next full tank is brought into action as the spring-urged armature of the relay engages the contact 28. The pump may be external of the tank with its intake in the sump.
Patent GB-1073085-A (GB)
Title: Process and products for promoting the development of industrially bred animals
IPC: A23K20/00
Filed: 1964-06-09
Abstract: The growth of young animals e.g. chickens, pigs, calves and, generally, animals bred for meat, hide or fur, is stimulated by addition of tannin to the basal diet.  The tannin may be from chestnut, myrobalan, quebracho, mimosa, vallonia or oak; a suitable preparation is the spray dried, hot water extract of chestnut wood shavings.  The tannin substance may form 0.05-3% of the feed, and may be incorporated in the foodstuff in the form of powder, paste, solution or emulsion.  The tannin is preferably obtained by extracting chestnut wood shavings with hot water, decanting, clarifying and concentrating the solution; either the concentrated solution is used or it may be dessicated e.g. by atomizing to produce a dry powder.
Patent GB-882480-A (GB)
Title: Improvements in or relating to rotors for axial-flow turbines
IPC: F01D5/08
Filed: 1958-07-24
Abstract: 882,480. Turbine rotors. ESCHER WYSS A.G. July 24, 1958 [Sept. 18, 1957], No. 23868/58. Class 110 (3). In a turbine rotor formed of discs welded together, the discs are provided with central apertures so that some of the seams may be afterworked from both inside and outside of the rotor. The rotor is composed of discs 1 to 4 carrying blades 12 to 15, each disc having an annular shoulder on each side, the neighbouring shoulders between the discs being connected by welded seams 7-9, the shoulders 1<SP>1</SP> and 4<SP>11</SP> ,  at the upstream end and the downstream end of the rotor respectively, being connected by weld seams 6 and 10 to the shaft sections 5 and 11 respectively, each disc having a central aperture of a diameter at least 30% of the outside diameter of the rotors, the apertures forming a central cavity by means of which those weld seams exposed to the highest operating temperatures may be afterworked from the inside. The shaft section 5 is provided with apertures 25 through which passes a cooling medium such as, in the case of a gasturbine rotor, either working fluid leaving the compressor, or working fluid leaving a heatexchanger subsequent to the compressor, this cooling medium flowing into the rotor cavity and emerging through apertures 26, 27, provided in the downstream shoulders of certain discs, the medium rejoining the working fluid after passing through labyrinth packing 22, 23 provided between the shoulders and the stator blades 19, 20.
Patent GB-532176-A (GB)
Title: Improvements in or relating to compressed air starter motors for internal combustionengines
IPC: F02N7/08
Filed: 1939-08-18
Abstract: 532,176. Engine turning gear. SOC. ANON. S.P.I.C.A. SOC. POMPE INIEZIONE CASSANI AFFINI. Aug. 18, 1939, No. 23909. Convention date, Aug. 18, 1938. [Class 7 (v)] The flow of air to a compressed-air starting- motor 4 is automatically cut off by a valve such as 21 when the pressure of oil produced by a volumetric pump 27 driven by the engine becomes sufficient. A hand-actuated valve is also provided at 19. The valve 21 is closed against the action of a spring 22 by the oil pressure acting within a bellows 25. The pump 27 may be the lubricating-pump of the engine. The motor 4 drives the engine crank shaft 1 through a free-wheel clutch 2, or through a saw-tooth clutch, which may be moved axially so as to become disengaged, also by the oil pressure produced by the pump 27 acting on a diaphragm or piston. Reduction gearing may be arranged between the shafts 1 and 3.
Patent GB-947021-A (GB)
Title: Improvements in or relating to clip devices for retaining fountain or other pens, pencils and the like instruments on the edges of garment pockets
IPC: B43K25/02
Filed: 1962-06-22
Abstract: 947,021. Clips. A. J. FAGARD & CIE. June 22, 1962 [July 28, 1961], No. 24041/62. Heading E2B. A cap and clip for a fountain pen comprises a clip 17 having spring arms 27 which are inserted through an aperture, or pair of apertures, in the cap 10 to a position in which the arms spring apart to an unstressed condition to retain the clip therein.