baber/WOPTO huggingface dataset:
Patent GB-441481-A (GB)
Title: Improvements in or relating to absorption refrigerating apparatus
IPC: F25B15/10
Filed: 1934-07-16
Abstract: 441,481. Refrigerating. ELECTROLUX, Ltd., Luton, Bedfordshire.-(Assignees of Platen-Munters Refrigerating System Aktiebolag; 2, Norrmalmstorg, Stockholm) July 16, 1934, No. 20801. Convention date, July 15, 1933. [Class 29] Absorption systems.-A circulation of inert gas in counterflow to the liquefied refrigerant in the evaporator of a pressure - equalized system is initiated by bringing liquefied refrigerant prior to its entry into the evaporator into contact with the inert gas, the density of the vapour-gas mixture formed producing an upward flow of inert gas in the evaporator. In one system, Fig. 1, liquefied refrigerant flowing through a conduit 18 from the condenser (not shown) enters a vessel 19 connected by a conduit 20 to another vessel 16, which is in communication by a conduit 15 with the gas space of the evaporator 10 and by a conduit 17 with the usual gas heat-exchanger 11. The liquefied refrigerant flows into the vessels 19, 16 until the level reaches the upper end of the pipe 21 which supplies the evaporator in normal working. The refrigerant in vessel 16 evaporates into the inert gas there present and the heavy mixture flows down conduit 17 into the exchanger and back to the absorber, (not shown), an upward flow of inert gas being produced from the exchanger into the evaporator. In the modification shown in Fig. 2, liquefied refrigerant is fed to the evaporator through a vessel 23 and a conduit 24 and inert gas has access to the vessel 23 either through this conduit 24 or through a bent conduit 29 (shown in dotted lines). Vapour-gas mixture is produced in vessel 23 and flows downwards through a conduit 25 into the usual conduit 26 from the evaporator to the heat-exchanger. The conduit 25 may terminate in a nozzle or may discharge above a perforated baffle 27. The preliminary evaporation may be utilized for cooling purposes, and may take place in a special auxiliary evaporator 28, Fig. 3. In this system the vessel 19 supplied from the condenser through conduit 31 is connected to the jacket 33 of a rectifier pipe 29. Vapour formed in the jacket may be led on to the condenser by a pipe 34. A pipe 35 in heat exchange with the jacket, as by being welded thereto, receives some liquefied refrigerant, the vapour from which is re-condensed in a gilled pipe 37 and led to the auxiliary evaporator 28 to produce a downward flow of vapour - gas mixture therein. Alternatively, vapour from the rectifier jacket may be recondensed in pipe 37 and led to the auxiliary evaporator. In all cases the inert gas conduit in and from the absorber should be carried to such a height that there is no tendency for the gas to reverse its initial direction of circulation. It is stated that the invention may be applied to non-condensing or reabsorption systems, in which cold is produced by evolution of vapour from strong solution.
Patent GB-261827-A (GB)
Title: Improvements in machines for cutting and wrapping caramels
IPC: A23G7/00
Filed: 1925-08-19
Abstract: 261,827. Forrester, H. J. C., (deal Wrapping Machine Co.). Aug. 19, 1925. Stream-cutting machines.-In a machine for cutting, forming, and wrapping caramels of the type described in Specification 13382/09, [Class 94 (i), Packing &c.], cutting and forming mechanism as described in Specification 254,897 is employed. The material is fed into an intermittently rotating cutter box 3, Figs. 4 and 21, and is forced into contact with blades 10 by presser feet 13, 14, the latter of which comes into contact with one blade at a time to sever the cubes, an insert 14a of fibre, &c. making the contact. The presser feet make complete oscillations during the periods of rest of the cutter box. An ejector 35 forces a block from between two blades into a pocket in a packeting wheel 94. A wiping mechanism, Fig. 22, cleanses the blades 10 after the cutting operation. A pair of jaw members 24 are mounted on a reciprocating block 25 sliding in a guideway 26. The tails of the jaws are forced apart by a spring 28 so that on arrival at the enlarged part of the guide, the jaws are caused to close upon the blade and scrape it during the inward movement. On the return movement rollers 30 act upon the tails to open the jaws.
Patent GB-531343-A (GB)
Title: Improvements relating to hose and like reels
IPC: A62C25/00
Filed: 1939-07-18
Abstract: 531,343. Hose &c. reels. TECALEMIT, Ltd. July 18, 1939, No. 20900. Convention date, July 18, 1938. [Class 99 (ii)] A reel for hose pipes, cables &c. has fluidpressure-operated means for re-winding the extended hose. A pair of reels are mounted on a stand 1, the reel discs 18 closing the open sides of casings 99, 100. Fluid is supplied to a hose through a pipe 9 and hollow hub 14, the nozzle 105 normally hooking in the stack 101. The hub shaft 25 carries a pinion 52 which engages a rack 62 secured to a piston 63 which is normally at the bottom of a cylinder 57. Air is supplied from a compressor reservoir to an accumulator 94 and the cylinders 57 through a reducing-valve 91 and pipes 93. The piston is raised as the hose is drawn off and returned bv air pressure when the hose is released. The accumulator and reducing-valve may be dispensed with, the cylinders being connected directly to the reservoir of the compressor.
Patent GB-273923-A (GB)
Title: Improvements in processes for preparing aromatic amines and derivatives thereof
Filed: 1926-08-25
Abstract: 273,923. British Dyestuffs Corporation, Ltd., Everatt, R. W., and Rodd, E. H. Aug. 25, 1926. Amines. - Dialkyl aromatic amines are separated from admixed monoalkyl aromatic amines by treating the mixture with phosgene in the presence of water to convert the monoalkyl amine into urea chloride, an alkali being added to neutralize any amine hydrochlorides formed. which is only necessary when the proportion of monoalkyl amine is above 25-30 per cent. In examples, a mixture of mono- and di-ethylaniline is stirred with water, cooled, and phosgene is passed in, sodium hydroxide or carbonate being added slowly during the reaction or slaked lime being introduced at the start. Hydrochloric acid is then added to dissolve the diethylaniline and the phenylethylcarbamyl chloride is filtered off and may be hydrolyzed to monoethylaniline or it may be condensed with a primary or secondary amine (monoethylaniline) or with ammonia to form a substituted urea. Specifications 128,372 and 211,245 are referred to.
Patent GB-295126-A (GB)
Title: Process and apparatus for preserving timber and other materials and the destruction of insect and other pests therein
IPC: B27K3/10
Filed: 1927-08-09
Abstract: 295,126. Kobiolke, A. M. Aug. 9, 1927. Proofing against bacteria and fungi; proofing processes; wood, treating with liquids and gases.-A process for preserving timber and other materials and destroying insects &c. therein consists in applying a vacuum, forcing the preserving fluid, preferably creosote, by air pressure into the treating chamber, withdrawing the fluid, creating a high vacuum in the chamber, and suddenly releasing the vacuum to force the surplus fluid into the wood. Green wood may be first treated with live steam, and the preserving fluid may be heated by means of a steam coil in the chamber. The apparatus consists of an impregnating chamber 1 and a tank 2 for the impregnant, connected by a pipe 3 with valves 4. At the top of the tank 2 is an inlet nozzle 6 open to the air but which may be connected by a pipe 7 to a vacuum pump 8. The pipe 7 can also be connected to a valve 10 at the top of the chamber l. A steam coil 12 supplied from a boiler 13 s disposed at the bottom of the chamber. The timber is run into the chamber on trucks 19. The walls of the chamber are provided with heat nsulating linings 22, and gutters 23 are provided to carry off condensed liquid through pipes 24 to a vessel 25. The timber having been placed in the chamber, the latter is opened to vacuum through the pipe 7, and the pump operated to create a vacuum of about 25 inches. The valves 4 are then opened, and impregnating fluid is forced into the chamber from the tank 2 by atmospheric pressure until the timber is submerged. The fluid is allowed to remain for a period, after which the suction pipe 7 is connected to the tank 2 and the unused fluid is sucked back to the tank. A high vacuum is then created in the chamber 1, and suddenly released by removing the pipe 7, allowing the entry of air which forces the preserving fluid remaining on the surface of the timber into the pores thereof. In treating green timber, live steam is fed to the chamber 1 through an inlet 26 for a period sufficient to cause the sap to boil, and allowed to remain for one hour, after which a vacuum is created to withdraw surplus moisture. The previously described treatment is then applied.
Patent GB-892848-A (GB)
Title: Improvements in pneumatic tyres
IPC: B60C9/26
Filed: 1958-07-01
Abstract: 892,848. Pneumatic tyres. PNEUMATIQUES & CAOUTCHOUC MANUFACTURE KLEBER-COLOMBES. July 1, 1958 [July 2, 1957; Dec. 3, 1957], No. 21026/58. Class 144(2). A pneumatic tyre has a breaker assembly comprising at least one strip of parallel cord fabric 3 which has its side edges folded upon itself to provide a two-ply structure of full breaker width, and a layer 4 of rubber which is reinforced with natural or synthetic textile fibres, laminated with the two-ply structure. The fibre reinforced layer 4 may be enclosed within the folded strip 3, as shown in Fig. 1, the edges of the strip 3 abutting at 5 on the radially inner layer of the structure either at, or laterally displaced from the mid-circumferential line of the breaker. In alternative constructions the edges of the folded strip may overlap as at 9, Fig. 3, or the abutting edges may be covered by a narrow strip 10 of the fibre reinforced rubber, Fig. 4. Fig. 5 shows the fibre-reinforced layer 11 disposed radially inwardly of the folded strip ply 12 to cover the abutting edges thereof. Two such ply structures 12 may sandwich a fibre reinforced rubber layer 11, or two assemblies 3, 4 such as shown in Fig. 1 may be superimposed to form the breaker. Alternatively two parallel cord fabric strips may be superimposed before folding and then folded around one or more layers of fibrereinforced rubber. In all cases the cords of the fabric strips may extend at a cord angle of 0 to 40 degrees with the circumferential and where two strips are used they may be disposed with their cords in symmetrically-crossed relation. The cords may comprise twisted filaments of metal, or natural or synthetic textile material. The fibres reinforcing the rubber layer may be oriented in a direction generally transversely of the breaker at an angle of 75 to 90 degrees to the circumferential, or may be randomly disposed.
Patent GB-829378-A (GB)
Title: Improvements in face plate mountings, more especially for machine tools
IPC: B23Q1/40
Filed: 1957-07-03
Abstract: 829,378. Face - plates. EISENWERK ROTHE ERDE G.m.b.H. July 3, 1957 [Aug. 11, 1956], No. 21057/57. Class 83 (3). [Also in Group XXXIV] A face-plate mounting comprises a single-row ball-bearing 5, Fig. 2, having wire races mounted in supporting members 2, 4 and 10. The member 2 is bolted to a machine-stand 6, and the member 4 is secured to the underside of the faceplate 1, the member 10 being screwed on to the member 4 whereby the setting and adjustment of the bearing may be effected from the exterior of the bearing. In a modification, two rows of balls 51, Fig. 3, are disposed between a member 4, secured to the face-plate 1, and members 2, 3, 10, secured to the stand 6. In a further modification, multiple-row ball-bearings 5, Fig. 1, are located between a member 4, secured to the face-plate 1, and members 2, 3, secured to the stand 6, the members 2, 3 being secured together by screw-threads 14 locked by a member 15. The points of contact between the balls and wires are disposed on a rolling-cone whose vertex is situated on the axis of the mounting.
Patent GB-936869-A (GB)
Title: Coal winning and conveying installations
IPC: E21C35/20
Filed: 1962-05-31
Abstract: 936,869. Conveyers. STAMICARBON N.V. May 31, 1962 [June 1, 1961], No. 21109/62. Class 78 (1). Coal loosened by a coal plough 3 is carried away by a face conveyer 2 and is deposited into a gate conveyer 9 which transports the coal in the direction of an arrow A. When the plough 3 arrives at the end of its travel, the coal pushed along by the plough 3 and not loaded on to the face conveyer 2, is fed into a subsidiary conveyer 12 via a sloping plate 11. It is thereby deposited into the gate conveyer 9 via a shoot 14 sufficiently for upstream for the main discharge of coal from the face conveyer 2 to have been cleared from the discharge area of the face conveyer 2 before the residue loaded via the subsidiary conveyer 12 arrives there.
Patent GB-1205180-A (GB)
Title: Process for the catalytic preparation of epoxyalkyl esters
Inventor: SINNEMA FEIJE HOTZE
IPC: C07D301/30
Filed: 1969-04-25
Abstract: 1,205,180. Epoxyalkyl esters of carboxylic acids. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 25 April, 1969, No. 21197/69. Heading C2C. A process for the catalytic preparation of an epoxyalkyl ester of a carboxylic acid having one or more carboxyl groups by reaction of an alkali metal salt of the said acid with more than the stoichiometrical amount of an epoxymonohaloalkane having the halogen atom adjacent to the epoxy group comprises successively: (1) gradually adding an aqueous alkali metal hydroxide solution having a concentration of at least 20% w. to a boiling mixture comprising the said carboxylic acid or an anhydride thereof and the said epoxyhaloalkane, at a temperature below 100‹ C. while distilling off water and epoxyhaloalkane; (2) continuing distillation, finally at a temperature which is higher than the temperature of the boiling mixture during addition of the alkali metal hydroxide, at least until the water content of the bottoms is below 0.5% w.; (3) adding the esterification catalyst; and (4) heating the mixture at a temperature of at least 50‹ C. Reference has been directed by the Comptroller to Specifications 936,808 and 876,125.
Patent GB-484191-A (GB)
Title: Improvements relating to the manufacture of staple fibre materials from continous filaments
IPC: D01G1/10
Filed: 1936-07-31
Abstract: 484,191. Forming staple fibre products from continuous filaments. DREYFUS, H., and POOL, W. July 31, 1936, No. 21211. [Class 120 (iii)] A staple fibre product is manufactured by the process described in Specification 484,190, and is then drafted to a finer product either directly as it comes from the rubbing bands or after first being made into a suitable package. It may for example be wound on a bobbin by a flyer device, being thereafter wound off the bobbin 32 between drafting rollers 35, 36, and through a ring spinning device 37 to a cop 39. Specification 410,805 also is referred to.
Patent GB-212206-A (GB)
Abstract: 212,206. Friden, C. M. F. Sept. 4, 1922. Multiplying and dividing apparatus. - In totalizing-counter machines the revolutionscounting mechanism comprises a single toothed pinion slidably mounted on a shaft and connected by a rack and pinion with the totalizer carriage and is provided with transfer mechanism for simplified calculation associated with which is a reversing mechanism adapted to be manually set when effecting division. The revolutions-counter comprises a plurality of numeral wheels 103 each provided with a pinion 104 meshing with an intermediate pinion 105 the selected one of which is adapted to be actuated by a single toothed member 107 longitudinally movable along a shaft 108 and rotatable therewith. The tooth is carried by a collar 109 to which is secured a rod 113 that is provided with a rack 114 meshing with a pinion 115 which, in turn, engages a rack 116 on the movable carriage. The collar 109 carries an indicator 112 that indicates the position of the actuating tooth member 107. The shaft 108 is connected to a sleeve 117 loose on the main crank shaft by gearing so that the shaft 108 rotates in the same direction and in unison with the sleeve 117; to the shaft is secured a pinion 39 which meshes with a pinion 132 on a shaft which carries at its other end a gear 133 meshing with an intermediate gear 134. A laterally movable pinion 123 splined to the sleeve 117 is adapted to engage either the pinion 133 or 134 so as to rotate the sleeve in the same or opposite direction to that of the main crank. The pinion, 123 is moved by means of a lever 124 having a bent arm 125 which engages a notch in a slidable rod 127 to which is secured a yoke 131 that engages a collar on the pinion 123; the rod is held in one or other of its positions by a spring-pressed ball 128 which is adapted to engage corresponding notches in the rod. The sleeve 117 carries a series of discs 118 having transfer actuating pins 121 and cams 119 which co-operate with known forms of transfer levers 122. Zeroizing of the numeral discs 103 is effected in known manner by spring-pressed balls mounted in the shaft 142 adapted to engage internal projections on the discs; the detents 106 are withdrawn during the zeroizing operation by means of a cam on the shaft 142 rocking the half round shaft 143. Specification 207,858 is referred to.
Patent GB-721117-A (GB)
Title: Improvements in metallic packing rings for pistons, particularly for air compressors
IPC: F16J9/26
Filed: 1953-07-31
Abstract: 721,117. Piston packing. McCALLUM, N., MOLLER, E., and REBBECK, Sir F. E. July 31, 1953, No. 21265/53. Class 122 (1). [Also in Group XXII] A self-lubricating, metallic packing ring for pistons comprises two outer layers 5, 6 of bronze or other non-ferrous metal or of castiron, bonded to an intermediate layer 7 of powdered metal sintered into a compact mass by a sintering process which also bonds the intermediate layer to the outer layers, the ring being impregnated with oil after the sintering process. The ring may be formed in two or more segments a, b, c, having overlapping ends, or as a split-ring and expanded by the usual expander to engage the cylinder. Outer layers 5, 6 of phosphor-bronze and of rectangular or L-section may be used, and the intermediate layer may be formed from powdered lead, bronze or cast iron.
Patent GB-407315-A (GB)
Title: Improvements in metal-vapour or rare-gas arc rectifiers
IPC: H01J13/50
Filed: 1932-07-28
Abstract: 407,315. Discharge rectifiers. JACKSON, L. MELLERSH-, 28, Southampton Buildings, Chancery Lane, London.-(Siemens- Schuckertwerke Akt.-Ges..; Siemensstadt, Berlin.) July 28, 1932, No. 21323. [Class 39 (i).] In a metallic-vapour or rare-gas arc rectifier, one or more auxiliary anodes are arranged within the discharge path to each anode and between the controlling electrodes and the cathode so that the discharge takes place in a stepwise manner from the cathode to the auxiliary anode and thence to the main anode. Anodes 4, 5, Fig. 1, controlling sleeves 10, 11 and uncontrolled grids 12, 13 are provided in a glass rectifier having a mercury cathode. Auxiliary anodes 6-9 are connected to the sleeves through resistances 14-17 and to the secondary of the supply transformer through a two-way switch 18. In a modification, a rectifier provided with an iron container has the anode 22, control grid 23, uncontrolled grids 26, 27 and auxiliary anodes 24, 25 arranged in the sleeve 21. A condenser 30 serves to displace the phase of the potential on the auxiliary anode 24. Specification 7892/05, [Class 39], is referred to. Reference has been directed by the Comptroller to Specification 259,234, [Class 39 (i)].
Patent GB-435340-A (GB)
Title: Improvements in or relating to moulders' chaplets
IPC: B22C21/14
Filed: 1934-07-21
Abstract: 435,340. Making chaplets. FOXALL, F., Field House, Careless Green, Wollescote, near Stourbridge, Worcestershire. July 21, 1934, No. 21358. [Classes 83 (i) and 83 (ii)] A chaplet is made by electrically welding a head a<1> to a shank a and then forming a neck a<2> by twisting or indenting, or both. The head may be a flat or arcuate plate a<1> or a<4> of any shape. The chaplet may be tinned or otherwise finished.
Patent GB-1525909-A (GB)
Title: Method of preparing low-sulphur low-ash fuel
IPC: C10L1/32
Filed: 1977-05-20
Abstract: 1525909 Treating coal KELLER CORP 20 May 1977 [20 May 1976] 21382/77 Headings C5G and C5E Low-sulphur, low-ash fuel is prepared from coal and organic constituents are extracted from the coal by (a) comminuting the coal in the presence of C 1 -C 4  alcohol to a size such that a major part of the coal is minus 100 Tyler mesh, (b) forming a mixture of the resulting comminuted coal and the alcohol, the mixture containing at least 40 wt. per cent of the coal, (c) separating the mixture into 3 streams, namely a first underflow stream (comprising primarily a first slurry of high density solids), a first middling stream (comprising primarily a first slurry of the coal particles), and a first overflow stream (comprising primarily the alcohol, a liquor of constituents dissolved from the comminuted coal in the alcohol and colloidal constituents suspended in the alcohol and the liquor), (d) separating the first underflow into a second underflow (comprising a second viscous slurry of sulphur and solids that would form ash residue if burned with the coal) and a second overflow (comprising a dilute slurry of coal in the alcohol and the liquor of constituents dissolved from the comminuted coal in the alcohol), (e) separating the first middling stream into a third underflow (comprising a second slurry of high density solids), a second middling stream (comprising primarily a second slurry of the coal with only a minor proportion of the high density solids and the sulphur therein) and a third overflow (comprising primarily the alcohol, a liquor comprising constituents dissolved in the alcohol and colloidal constituents suspended in the alcohol and the liquor), (f) separating the first overflow into a fourth underflow and a fourth overflow, (g) refining the fourth overflow into respective desired organic constituents and the alcohol, and (h) forming a low-sulphur, low-ash fuel from the second middling stream. Step (h) may involve producing a thixotropic dispersion of coal in alcohol, pressuring the dispersion, heating the dispersion to 140 to 180‹ F. and flashing to atmospheric pressure to flash off and free the alcohol and organic gas including methane and to produce puffed coal particles that burn readily with a high efficiency and produce a hot flame with very little pollution.
Patent GB-640768-A (GB)
Title: Improvements in or relating to polaro graphs
IPC: G01N27/48
Filed: 1948-08-13
Abstract: 640,768. Determining physical quantities of materials. CAMBRIDGE INSTRUMENT CO., Ltd., and JESSOP, G. Aug. 13, 1948, No. 21448. [Class 37] Apparatus for the polarographic analysis of solutions in which a constant, small A.C. voltage is superposed on the normal D.C. voltage, thus producing a current consisting of the normal D.C. current giving a curve comprising a series of sloping steps, and an A.C. current whose magnitude is substantially constant except for sharp peaks corresponding to the middle of the steps in the D.C. curve is characterized in the use of phase-sensitive means for determining the magnitude of the peak A.C. current over the residual A.C. The current from a polarographic cell B supplied with D.C. from source A and A.C. from source D is fed through an A.C. amplifier E to an interrupter F operating at the same frequency as the A.C., whose phase is controlled by an impedance network H and is adjusted to be substantially in phase with the A.C. supply, whereby the residual A.C. which is out-ofphase with the applied volts is eliminated from the readings of a meter G, and only the inphase current is measured. The interrupter F may be replaced by other means for phase selection and rectification.