baber/WOPTO huggingface dataset:
Patent GB-287072-A (GB)
Title: Improvements in or relating to the synthetic production of ammonia
IPC: C01C1/04
Filed: 1928-03-12
Abstract: 287,072. Nitrogen Engineering Corporation, (Assignees of Richardson, R. S.). March 12, 1927, [Convention date]. Catalytic processes and apparatus.-In the production of ammonia from a mixture of nitrogen and hydrogen circulated in a cycle through a single catalytic converter, part of the ammonia is first removed at one point and a further part is removed at a second point beyond the pump and the inlet for the fresh gases, this portion taking with it impurities introduced by these gases and from the lubricating oil in the pump. In the system shown in Fig. 1, the gases issuing from the reaction chamber 1 are passed through a first condenser 4 whereby part of the ammonia in a pure condition is accumulated in a receptacle 5. The residual gases pass through the circulating pump 6, on either side of which is an inlet 7 for fresh gases, and thence to a second condenser 8 and liquid ammonia receptacle 9 and back to the reaction chamber. In a modification a heat exchanger is arranged in the paths of the gases from the pump to the second condenser and from the second condenser to the reaction chamber.
Patent GB-576379-A (GB)
Title: Improvements relating to guards for power presses and other machines
IPC: F16P3/04
Filed: 1944-04-25
Abstract: 576,379. Machinery guards. PHILLIPS & CO., Ltd., J. A., and FIELD, W. April 25, 1944, No. 7698. [Class 80 (iv)] A rock-shaft 1 is mounted in bearings 2, 3 near the foot of the machine and carries an arm 4 connected by a rod or wire 5 with a part causing movement of the guard. Another arm 6 on the shaft carries a roller 7 on which rests the free end of a treadle 8 pivoted at 9. A counterweight 10 maintains the roller in contact with the pedal. Connections to the clutch " scotching" gear are made at 12, in such manner that the clutch cannot be engaged until the guard is in closed position. Another treadle 13 acts upon a roller 16 on an arm 15 to operate the clutch. The guard and clutch are therefore operated comfortably by both feet, the hands being left free for the many operations necessary in a press or other machine.
Patent GB-671937-A (GB)
Title: Improvements in combustion apparatus
Inventor: WINTER ERNEST FREDERICK
IPC: F23R3/14
Filed: 1949-03-22
Abstract: 671,937. Generating combustion products under pressure. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. June 21, 1950 [March 22, 1949], No. 7823/49. Class 51 (i). [Also in Group XI] In a combustion chamber having an airjacketed flame tube in which is disposed a hollow baffle defining a primary combustion zone, a circular series of tangential entries is provided in the baffle extending along the length of the baffle so that the inner surface of the baffle is swept by a high-velocity air stream. The baffle comprises a conical portion 6 and a cylindrical portion 7, the tangential entries being in the form of scoops 8 and those in the two portions of the baffle are preferably oppositely handed. Atomized liquid fuel or pulverized solid fuel may be used. The combustion chamber described in the Provisional Specification is not essentially of the airjacketed type. Specifications 636,624 and 639,468 are referred to.
Patent GB-742489-A (GB)
Title: Improvements in or relating to the partial oxidation of olefins to olefin oxides
IPC: B01J23/50
Filed: 1953-03-23
Abstract: Olefine oxides are prepared by the partial oxidation of olefines with oxygen wherein a reactant stream containing an olefine and oxygen is passed in contact with a catalyst having an active silver surface at temperatures of from 150 DEG  to 400 DEG  C., there being added to the reactant stream an amount up to 300 parts per million by volume of a chlorinated aromatic hydrocarbon containing from 54 to 70 per cent by weight of chlorine and boiling at 365 DEG  to 460 DEG  C. and stable at the contact temperature, with resulting increase in yield of olefine oxide.  The chlorinated counteractants may be introduced by bubbling all or a portion of the reactant stream through a bath of the counteractant heated to a temperature sufficiently high to allow the required amount of the substance to be evaporated into the reactant stream; the solid counteractants may also be so treated in a solution in an inert solvent.  Specified chlorinated counter-actants are chlorinated bi- and poly-phenyls.  The process is applicable especially to the oxidation of ethylene wherein a reactant stream consisting of about 3-5 mol. per cent ethylene and oxygen ratios varying from 1 : 1 to 2 : 1 is passed over silver supported on a carrier at 225-350 DEG  C. at pressures from sub-stmospheric to about 600 lb. sq. in.  The ethylene normally contains the usual paraffinic impurities.  The amount of counter-actant may vary from 50 to 0.1 parts per million by volume in the case of an ethylenic reactant stream containing impurities amounting to 5 per cent or less.  The catalyst may contain certain alkali and alkaline earth metal compounds as modifiers.  The oxidation of propylene to its oxide is also mentioned.
Patent GB-381476-A (GB)
Title: A process for the production of primary alcohols
IPC: C07C29/141
Filed: 1932-03-17
Abstract: Primary alcohols are prepared by heating calcium formate in a solvent with the calcium salts of fatty acids and simultaneously reducing the aldehydes formed by means of hydrogen at elevated pressures in the presence of hydrogenating catalysts.  Solvents specified are tetraline (a registered Trade Mark), dodecane, butyl alcohol, and the alcohol which comprises the reaction product in any particular case. Copper, nickel, cobalt, and chromium compounds, with or without previous reduction, are mentioned as catalysts.  According to the example, calcium formate and calcium octoate are dissolved in lauryl alcohol, copper carbonate precipitated on kieselguhr added, and the mixture then heated in an autoclave whilst hydrogen is forced in; the resulting octyl alcohol is separated by distillation from the lauryl alcohol employed as solvent.  In a similar manner, lauryl alcohol can be obtained from calcium laurate and stearic alcohol from calcium stearate.
Patent GB-1421572-A (GB)
Title: Dispensing stopper with screw cap
IPC: B65D47/40
Filed: 1973-02-19
Abstract: 1421572 Container closures ALLUMINIO MAUCERI BORGHETTO SpA 19 Feb 1973 7945/73 Heading B8T A plastics stopper has a dispensing body 12, a screw on cap 13 and a gasket member 15 which are secured to the mouth 11 of a container by a guarantee strip 14. The dispensing body 12 has an annular lip 19 and an integral drip reducing member 16 secured by radial ribs 17 to provide dispensing ports 18. The cap 13 has a tamper proof strip 21 and a frusto-conical portion 20 which forms a tight seal with the lip 19 when the cap is screwed on. The gasket member 15 is a force fit in the mouth 11 and serves also for breaking the liquid stream during dispensing.
Patent GB-549157-A (GB)
Title: An improved loose-leaf holder
IPC: B42F13/12
Filed: 1941-06-26
Abstract: 549,157. Filing papers; book-keeping. MORLAND & IMPEY, Ltd., and BRAITHWAITE, R. June 26, 1941, No. 8056. [Classes 16 and 146 (i)] A loose-leaf holder, which is adapted to retain sheets in a particular relative arrangement whilst a record is made thereon, comprises a base a of rubber &c. having a sheet of fabric attached to one or both sides and carrying near one edge a row of cone-shaped projections e, on which the sheets are filed. The sheets are retained by a strip h pivoted to the base and having holes to engage over the projections, the strip being provided with an operating-knob k. The fabric sheets are impregnated with synthetic resin &c. to impart to them a hard smooth surface, and are united to the rubber by heat and pressure. The base is preferably rigid but may be flexible.
Patent GB-926086-A (GB)
Title: Photographic production of indicia-bearing panels
IPC: G03F7/00
Filed: 1960-03-08
Abstract: 926,086. Photographic production of indiciabearing panels. E. A. NEUGASS. March 8, 1960 [May 29, 1959], No. 8090/60. Drawings to Specification. Class 98 (2). A base as of plastic or metal is provided after sandblasting if desired with a coating as of paint which is air dried and cleaned with a detergent such as sodium hypochlorite solution, then provided with a light-sensitive layer for which a proprietary acrylic-urea resin is quoted, exposed under a transparent member having indicia to be reproduced, washed with water or developer to remove unexposed parts of the layer, treated as with paint remover to remove the corresponding parts of the coating, and finally washed as with detergent to remove exposed parts of the layer. The coating provided may be in the form of black paint which is baked, and then overcoated with white paint which is not baked. Plastics for the base and some solvents for the processing procedure are quoted.
Patent GB-1332614-A (GB)
Title: Fluid operated fastener driving device
IPC: B25C1/04
Filed: 1972-02-22
Abstract: 1332614 Fastener driving tools BUKAMA GmbH HANNOVER 22 Feb 1972 [9 March 1971] 8098/72 Heading B4C  The reciprocable piston of a pneumatically actuated fastener driving tool comprises two semi-cylindrical parts 11, 12, which, when assembled, define a recess 22 which receives one end of a fastener driver 13. The driver 13 is secured by a pin 25. In operation actuation of trigger 4 causes valve 5 to open communication between air reservoir 3 and cylinder 7, and the piston and -driver are driven towards a buffer 18. During this working stroke air below the piston is forced into return chamber 30 and is supplemented by air from the reservoir leaking between the abutting faces of the piston. Releasing trigger will cause valve 5 to close passage 6 to reservoir 3 and to open that passage to atmosphere, and air in the return chamber will return the piston to its initial position in which it is held by a magnet 27.
Patent GB-1059408-A (GB)
Title: An electrical converter circuit utilising semiconductor devices
IPC: H02M3/338
Filed: 1964-02-27
Abstract: 1,059,408. Converting. WESTERN ELECTRIC CO. Inc. Feb. 27, 1964 [March 5, 1963], No. 8112/64. Heading H2F. The description is substantially identical with that relating to Fig. 2 of Specification 1,059,409 but the claims relate to a D.C.-D.C. converter comprising an inverter followed by a rectifier, the inverter being driven by a constant frequency auxiliary inverter. Retroactive automatic voltage control is also envisaged by an error signal varying the resistance of an addition winding on the transformer 21 to vary the frequency of the auxiliary inverter.
Patent GB-903923-A (GB)
Title: Improvements in or relating to a "pig ball" injector device
IPC: F16L55/46
Filed: 1961-03-06
Abstract: 903,923. Cleaning pipes; junction pieces. WILLIS, R. S. March 6, 1961, No. 8135/61. Classes 99(1) and 99(2). A " pig ball " injector device comprises a valve housing 1 containing a valve chamber 2 and having means connectable to flow lines 4, 4a leading in and out of the valve chamber, valve means 23 carried by a support 11, a valve seat 27, and " pig ball " injector means connected to the housing and communicating with the chamber 2 through the seat 27, wherein the valve means 23 is movable to a seated position permitting flow through the chamber 2 and preventing injection of a " pig ball " 44 into the valve chamber and is movable to an unseated position permitting flow through the chamber 2 and the injection of a "pig ball " through the seat 27 into the chamber 2. As shown, the " pig ball " 44 is contained in an injector housing 30 the inner extremity of which closely fits in the bore 29 of the housing 1 by means of a bayonet-type connection and is held therein by spring- loaded detent-means 37. The housing 30 has a plug 45 tapped and threaded to receive a bleeder valve 48. When the valve 23 is moved to its unseated position by rotating the stem 13 to screw the latter through the bushing 14 a spring-loaded follower 41 forces the " pig ball " through the seat 27 into the valve chamber 2 and fluid passing therethrough will transfer the " pig ball " into the flow line 4a. The valve means is fully described in Specification 903,922 which relates to a " pig ball " capture device.
Patent GB-233843-A (GB)
Title: Improvements relating to baby carriages and chairs
IPC: B62B7/12
Filed: 1924-04-01
Abstract: 233,843. Hoskins & Son, Ltd., and Kynaston, E. O. April 1, 1924. Seats convertible into perambulators.-To convert a perambulator into a chair, part of the body is removed leaving a seat n, and the parts a, b of the underframe are folded down to act as legs, the seat n being supported by a pivot m and a hook u. The handle v is folded down as shown and secured by a hook x.
Patent GB-698248-A (GB)
Title: Process for the manufacture of an anhydrous melt containing stannous chloride and containing only small quantities of oxide and oxychloride
IPC: C01G19/06
Filed: 1950-04-03
Abstract: 112.8 kgs. of hydrated stannous chloride, in commercial form or made by dissolving fine tin in hydrochloric acid, is heated in a cast iron or graphite crucible until it dissolves in its own water of crystallization.  37.3 kgs. of potassium chloride, e.g. as sylvine, is added and the mixture heated and stirred until it dries and then again becomes molten, at 224 DEG C.  The KCl, Sn CI2 formed may be cast or used immediately for tinning metals.ALSO:Iron, copper and alloys of iron, copper or zinc are tinned by immersion in a salt bath formed by melting potassium and stannous chlorides in proportions such that more than 38 per cent KCl is present and preferably in proportions corresponding to KClSnCl2.  Other fusible salts, such as halides of alkali metals, alkaline earth metals and zinc may be present.  Reference is also made to fused mixtures of stannous chloride with sodium, ammonium, magnesium, calcium, barium and zinc chlorides.
Patent GB-793539-A (GB)
Title: Apparatus for the manufacture of meat or fruit pasties, and the like
IPC: A21B5/02
Filed: 1955-03-23
Abstract: 793,539. Moulding pasties &c. HARVEY, A. March 21, 1956 [March 23, 1955], No. 8524/55. Class 87(2). A turnover is formed by placing a sheet of pastry on a plate 1 having a wall 6 with an upper knife edge, rotating a table carrying the plate to a station where a filling material is placed on the pastry, then as the table moves to the next station, a trip device moves a hinged plate 4 down to fold the pastry over the filling, pressing the plate down by means of a ram at the next station to seal the edges of the pastry and to cut off the surplus pastry between the knife edge and a member 7, and finally removing the turnover at a last station. The plate 4 is returned to the position shown dotted after pressing by a spring-pressed ball 9. Filling sheets may be placed on the plate to adjust the thickness of the turnover.
Patent GB-725723-A (GB)
Title: Improvements in and relating to cyclones
Inventor: DOBSON RICHARD DONALD
IPC: B07B7/08
Filed: 1953-03-27
Abstract: 725,723. Centrifugal separators. BUREAU VAN TONGEREN N.V. March 27, 1953, No. 8548/53. Class 23. Particles suspended in a fluid carrier are classified in a separator comprising a separating chamber formed by cylindrical and funnelshaped parts 4, 6, an inlet 9 opening tangentially into the cylindrical part, a passage 8 leading from the funnelshaped part for the discharge of coarser particles, an outlet 5 for discharge of fluid and finer particles, and means associated with the inlet causing the fluid and particles to enter the chamber in two layers, an inner layer containing all or most of the particles and an outer layer containing no or few of the particles. The inlet has a bend 9a which stratifies the dust carrying air so that layers having high and low dust contents flow respectively on the inside and outside of a guide vane 10. The air from the outer layer entrains finer dust as it passes through the heavily dust-laden layer on its way to the outlet 5. The coarser dust is discharged from the passage 8 by means of a flap valve 8a. A flap valve 15 may be opened to admit air to the separating chamber. In a modification (Fig. 4, not shown), air enters axially a straight inlet which is inclined to the horizontal, the dust being supplied from a hopper opening through the upper wall of the inlet and a baffle parallel with the walls of the inlet confining the dust to the upper part of the inlet.
Patent GB-194557-A (GB)
Title: Improvements in or relating to fuse carriers and connections therefor
IPC: H01H85/38
Filed: 1922-03-24
Abstract: 194,557. Berry, H. H., and Markham, W. J. March 24, 1922. Fusible cut-outs. - Fuses are provided with a cover or handle carrying contacts which connect the lead contacts with the fuse, contacts, so that on withdrawing the handle, the fuse contacts and fuse wires become dead. Each contact c, Figs. 1 and 2, of the fuse b is connected to clips e placed above clips g to which one lead is connected. The handle h carries blade contacts i adapted to connect the clips e, g when in the position shown. In the form shown in Fig. 3, the fuse terminals k are connected to clips m and the double blades p connect them with the lead terminals n as shown. Figs. 4-6 show an application to a fuse wherein the wire is threaded in a tortuous passage 1, 2, 3 and connected to terminals u. These terminals are connected to plates or blocks v having clips w at one side, and the double blade x connects them to the lead terminals z. Vents 4 are also provided.
Patent GB-1447464-A (GB)
Title: Granular cereal product
IPC: A23L1/164
Filed: 1974-02-26
Abstract: 1447464 Granulated cereal product CADBURY TYPHOO Ltd 25 Feb 1975 [26 Feb 1974] 8607/74 Heading A2B A granulated cereal product is made by preparing a loose mix of one or more cereals, water, a fat, at least one flavouring and at least one substance which decomposes to evolve a gas or vapour when heated, and heating to loose mix to evolve a gas or vapour and to remove some of the water. The gas evolving substance is preferably ammonium carbonate, sodium carbonate and/or ammonium bicarbonate used in an amount of up to 1.6% by wt. The fat is preferably ground nut oil and the flavouring honey, molasses, malt extract, invert sugar, glucose syrup, caramelised sugar, treacle syrup, chocolate or cocoa. Many cereals are specified, and as well as sugars, milk powder soya protein, almonds, hazel, cashew or arachis nuts, sesame or sunflower seeds, raisins and/or sultanas, apple, banana, apricots, peaches, lemon or orange peel or textured vegetable protein may also be included.
Patent GB-472054-A (GB)
Title: Improvements in or relating to integral wrought metal valve bodies
IPC: F16K27/02
Filed: 1936-03-23
Abstract: 472,054. Making valve bodies. CORNELL, jun., E. S. March 23, 1936, No. 8641. Convention date, March 22, 1935. [Class 83 (ii)] A T-shaped valve body of copper or copper alloys of predominantly copper content is made integral and wrought to its final form by cold working. It comprises a lateral 13 for housing the valve mechanism, and branches 11, 12 of uniform diameter terminating in a shoulder for affording telescopic connection with pipe fitting. A wall member 14 extends across the valve body and is shaped to serve as a valve seat and to define passage communication. Specification 472,055 is referred to.
Patent GB-435554-A (GB)
Title: Apparatus for short-wave therapeutical treatment
IPC: A61N1/40
Filed: 1934-03-19
Abstract: 435,554. Electro-therapeutic apparatus. WEISSENBERG, E., 7, Edelhofgasse, Vienna. March 19, 1934, No. 8646. Convention date, Sept. 26, 1933. [A Specification was laid open to inspection under Sect. 91 of the Acts, Jan. 9, 1935.] [Class 81 (ii)] Apparatus for shortwave therapeutical treatment comprises a short - wave oscillator which is adapted to be fed with current from the electric lighting mains, and is enclosed within a transportable casing of nonconducting material so that it can be applied or approached as a whole to the body of the patient to be treated. The casing 1, which consists of wood, ebonite, synthetic resin, or like nonconducting material, may be attached to an arm 2 which is universally adjustable about a ball joint 3 and is mounted on a stand 4. A thermionic valve short wave oscillator, which is supplied with current by a flexible lead 9 having a plug 10, is provided with a loop 7 or plate for radiating highfrequency energy, and both the oscillator and the loop are completely enclosed within the casing. The Specification as open to inspection under Sect. 91 also comprises apparatus in which the oscillator is energized by batteries or by " voltages received from a broadcast transmitting station," and is provided with one or more external conductors which are coupled to the oscillator. This subject-matter does not appear in the Specification as accepted.
Patent GB-273394-A (GB)
Title: Improvements in vacuum electric tube devices
IPC: H01J1/18
Filed: 1926-03-30
Abstract: 273,394. Robinson, E. Y., and Metropolitan-Vickers Electrical Co., Ltd. March 30, 1926. Vacuum tubes.-In mounting U, V, N, M, W or other multiple-filament cathodes in vacuum tubes having an anode within the envelope, and particularly in tubes with short inter-electrode gaps, a rigid metal member or structure is attached to the filament between its free ends or between one or both free ends and one or more bight portions so that the filament can be conveniently inserted in, and positioned relatively to, the other electrodes, and, after the filament has been mounted, is cut through to remove the short-circuit across the filament. A flat anode 1, Fig. 1, and flat grid may be mounted on parallel wires 2, 5 in the pinch 3, jigs being used in the assembly. A flat filament-tensioning spring 8 and wires 11, 12 are embedded in a glass bead 9 with the use of jigs, the wires 11. 12 having right-angle bends 13 or semicircular bends so that, when these are welded or otherwise attached to the wires 2, 5, the hook 10 on the spring 8 is correctly positioned to support the bight of the filament with the spring 8 at rightangles to the filament. Parallel arms of a hairpin filament 15, Fig. 3, with a rectangular bignt 17, are welded to a U-shaped nickel part 16 which is passed down through the grid to engage the filament bight with the hook 10. The filament is then tensioned, the arms of the part 16 are welded to filament leads 6. 7 in the pinch 3, and the part 16 is then cut through at its bend. Alternatively, the ends and centre bight 26, Fig. 8, of an M-shaped filament are welded to wires 22, 23 and a hook 25 welded to a cross wire 24 and, after this assembly has been lowered into the other electrodes and the intermediate bights 27 engaged with hooks on two springs in the bead 9, the wires 22, 23 are welded to filament leads 6, 7 and the hook 25 to a central support 30, or to a lead if the two halves of the filament are to be connected in parallel, the wire 24 being subsequently cut. at the points marked. The flat spring 8 may be replaced by a wire bent as in Fig. 6, the two ends 17<1> being mounted or a flat spring or in the glass bead 9. The bead 9 may be supported on one or two wires 11, 12 of nickel and the spring 8 may be of nickel or molybdenum. The Provisional Specification refers to Specification 222,176.