baber/WOPTO huggingface dataset:
Patent GB-455437-A (GB)
Title: Attachment for mining machines
IPC: E21C27/02
Filed: 1935-04-24
Abstract: 455,437. Mining-machines. LOGAN, W. A., Park Cottage, Kinghorn, Fife. April 24, 1935, No. 12283. [Class 68 (i)] A loader - conveyer and shearing - cutter attachment for a long wall chain-cutter mining machine comprises a jib for the shearing cutter which is adjustable angularly about the axis of the cutter-chain driving-sprocket, additional provision being made to increase the range of vertical adjustment of the cutter chain. The attachment may be secured to either side of the machine and the shearing cutter on either side of the loader. As shown the shearing cutter includes a chain jib 5 adjustable about the axis of the chain driving sprocket 7, and held by bolts 12 ; the jib is also provided with chain-tightening means 14 and also with a chain-guide 15 vertically adjustable by a screw 16. The loader 3 includes chains 17 with scrapers 22 driven by a shaft coupled to the motor of the mining machine 1 and driving the shearing cutter through gears 23, 24. A narrow portion 31 of the loader is removable to reduce the width of the machine when flitting. Specification 411,256 is referred to.
Patent GB-721388-A (GB)
Title: Improvements in mercury manometers, particularly sphygmomanometers
IPC: A61B5/023
Filed: 1952-05-15
Abstract: 721,388. Pressure gauges. HESSE, H. May 15, 1952 [Oct. 31, 1951], No. 12336/52. Class 106 (2). [Also in Group VI] A mercury manometer has the mercury reservoir 2, Fig. 2, arranged at the rear of the manometer tube 5, in relation to the scale of the manometer, one end of said reservoir being disposed nearer the manometer tube 5 than the other, the nearer end of the reservoir being at a higher level than said other end of the reservoir. The arrangement enables the manometer to be tilted slightly in the plane containing the tube 5 and the reservoir 2 without any appreciable error occurring in the manometer reading. According to a modification, Fig. 3, the mercury reservoir comprises a pair of rearwardly extending containers 2 disposed laterally of the manometer tube 5 at equal distances on the opposite sides thereof. In Fig. 2, a branch conduit 6 communicates with the manometer tube 5 at a point somewhat above the zero level of the mercury therein and the closed end of the manometer tube 5 is automatically sealed off from, and opened to, the atmosphere by the rise and fall of the mercury column in the manometer tube 5. Thus the initial pressure in the closed end of the manometer tube 5 is atmospheric, and the mercury in the reservoir 2 and the manometer tube can be levelled before a pressure measurement is to be made.
Patent GB-568932-A (GB)
Title: Improvements in or relating to the manufacture of cellulose esters
IPC: C08B3/24
Filed: 1943-07-30
Abstract: Acetone-soluble cellulose esters of lower fatty acids, e.g acetate or propionate are partially saponified by heating a solution of the ester in hot aqueous ethyl alcohol of concentration 50-85 per cent by volume, in the presence of a small proportion of an inorganic acid until all or nearly all the ester has become soluble in cold aqueous 60-75 per cent ethyl alcohol.  The inorganic acid employed may be hydrochloric or sulphuric.  The acid may be added to the solution in its concentrated or diluted form and in the case of a volatile acid, in the vapour phase.  When the desired degree of hydrolysis is obtained, the ester is precipitated, e.g. by pouring into water, or the acid is neutralized by the addition of, for example, sodium acetate, and the ester recovered by precipitation or by distilling off the alcohol.  The process produces esters which are soluble in cold aqueous ethyl alcohol of concentration between 60 and 75 per cent, which may be cast into films or employed in coating compositions and to which may be added other solvents, e.g. diacetone alcohol, plasticizers, fillers and colouring matter. In the examples: (1) cellulose acetate is boiled under reflux with 60 per cent ethyl alcohol containing hydrochloric acid and the acetate is precipitated by pouring the solution into a large amount of cold water; (2) cellulose acetate is boiled under reflux with 62 per cent ethyl alcohol containing sulphuric acid.  Sodium acetate is added to neutralize the acid and the alcohol is distilled off.  In the Provisional Specification it is stated that the ester may be subjected to treatment in any suitable organic solvent, e.g. acetone or a hot benzene-ethyl alcohol mixture with or without acetone.
Patent GB-442351-A (GB)
Title: Improvements in and relating to elastic fluid power plants
IPC: A47G27/02
Filed: 1934-04-25
Abstract: 442,351. Feedwater regulators for steam boilers. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London. April 25, 1934, No. 12466. Convention date, April 25, 1933. [Class 123 (ii)] [See also Groups XXVI and XII] Comprises means for controlling a power system for aircraft which includes a turbine 83 driven by steam or mercury vapour supplied from a generator fed by liquid passed through reheaters 91, 92, 93 by pumps 94, 95 driven through tooth gearing from an auxiliary turbine. A spring-pressed, diaphragm-operated valve 113 between the suction and discharge of the pump 95 controls the feed supply. Expansion of air in the conduit 117 due to boiler heat controls the diaphragm 115.
Patent GB-125196-A (GB)
IPC: B23Q35/10
Abstract: 125,196. Stead, F. April 3, 1918. Shaping by cutting.-Comprises a copying- machine for shaping aircraft propellers wherein both surfaces of each blade are shaped simultaneously. A four-bladed propeller 49 to be shaped, and the corresponding pattern 51, are shown secured in clamps 40, the two surfaces of the propeller being operated upon by drunk saws 24, and the pattern traversed by feeler disks 25. The feelers are carried by arms 10 pivoted at 13 to the bottom of a rigid frame 15 suspended from pivots 18 arranged at the upper ends of arms 12, which are counterweighted at 32 and pivoted at 7 to brackets on a carriage 59. The tools 24 are carried by arms 14 provided with counterweights 20 and adapted to rock on the pivots 18, the tools and the feelers being constrained to rise and fall together by adjustable tie-rods 33. Handles 23, 35 are provided whereby the arms 12 are oscillated to cause the tools and the feelers to pass across the work and the pattern, their passage along the work and the pattern being effected by operating the carriage 59 by a hand-wheel 45 acting through a pinion 60 and a rack 43. The tools are rotated by belt-gearing from a driving-shaft 1.
Patent GB-1419502-A (GB)
Title: Core locking device
IPC: G03B21/32
Filed: 1972-03-17
Abstract: 1419502 Core mounting device KODAK Ltd 15 March 1973 [17 March 1972] 12520/72 Heading F2U A core-mounting device comprises a spigot 2 having an arm 30, engageable by a core mounted on the spigot, which is screwably mounted on a spindle 4, relative to which, rotation in one direction by the core, of the arm and spigot cause relative axial movement therebetween, axially compressing a ring 26 of elastomer (e.g. neoprene) which expands to grip the bore of the core. As shown bolts 42 attach to a flange 40 on the spigot 4, a hub 36 having a slot in which the arm has limited movement. Adjacent the ring 26 is a bearing ring 28 of nylon or PTFE, then a cap 8 connected to the spindle by an integral key 18 and a screw 10, which has a lock nut 12 and a locking plate 50, with flats 56.
Patent GB-946683-A (GB)
Title: Improvements in or relating to sieve drum driers
IPC: F26B17/28
Filed: 1960-04-08
Abstract: 946,683. Sieve drum driers. FLEISSNER G.m.b.H. April 8, 1960 [May 8, 1959], No. 12552/60. Heading F4G. A sieve drum drier comprises a housing 1, Figs. 1 and 2, enclosing perforated drums 2 and 3 rotatable in opposite direction. Air permeable goods to be dried are passed from a conveyer 4 under the drum 2 and over the drum 3 and leave the housing at 5. Masking means 6 and 7 are provided in the drums to cover the parts thereof not covered by the goods. Fans (not shown), draw air axially from the drums 2 and 3 through exits 8 and 9. Nozzles 12, 13 are provided in the drums 2, 3 respectively, and each has a slit-like entry aperture 14 extending over the length of the drum, and an exit aperture 15 at the exit from the drum. Air entering the drum from the housing is thus divided into two streams which are combined only at the exit of the drum. The area F 1  of the exit aperture 15 is greater relative to the area F 3  of the remainder of the drum exit 8 than is the area F 2  of the inlet 14 relative to the remainder F 4  of the surface of the drum, e.g. 2, not covered by the masking means, e.g. 6. This causes a stronger motion effect at the inlet 14 than elsewhere on the drum 2 so that the goods are attracted strongly to the drum 2 at the position of the nozzle 12. Similarly, the gases are attracted strongly to the drum 3 at the nip between the drums, by the nozzle 13. In another embodiment, Fig. 3a, air passing through the upper surface of a sieve drum 16 having a lower semi-cylindrical mask 17, is divided into two streams 20, 21 by a central diametral baffle 19, the stream 20 being longer than the stream 21 so that the suction effect is made substantially uniform over the upper surface of the drum. In a further embodiment described with reference to Fig. 5 (not shown), the air passing through the upper surface of a sieve drum is divided into three streams of different lengths and the arrangement of baffles is such that the suction at the middle region of the upper surface is greater than at the end regions of that surface.
Patent GB-113072-A (GB)
Title: Improvements in or relating to Furnace Firebars.
Inventor: SPENCER RICHARD
IPC: F23H3/02
Filed: 1917-09-03
Abstract: 113,072. Spencer, R., and Bennett, I. W. Sept. 3, 1917. Fire-bars are constructed on the one side with inclined upper surfaces 8 and vertical surfaces 1, and on the other with a recess, so that, when they are laid side by side with their sides 1 touching, grooves for the reception of ashes &c. are formed by the surfaces 8, and air passages 5 are formed between them. The webs 2 are preferably tapered, and have or form, air inlets 6, 7, 10. The bars may be cast in pairs, the separate spacing- lugs 4 being then integral.
Patent GB-217200-A (GB)
Title: Improvements in shock absorbers
IPC: F16F7/02
Filed: 1924-05-22
Abstract: 217,200. Compagnie d'Applications MÚcaniques. June 8, 1923, [Convention date]. V i b r a t i o n - dampers.- Friction shock-absorbers are constructed to act in any direction of movement of the two relatively mov. able parts between which the shock-absorber is interposed, and comprise inner and outer hollow spherical or conical shells fitting intc each other and disposed about a pivot pin the shells being pressed together by yielding means which give a substantially constant pressure. In Fig. 2, the outer frictional member comprises two hemispherical shells 3 spaced apart by a bolt 6 and having extensions 4 which together form one of the arms of the shock absorber. The inner member comprises similar shells 1 which are pressed against the outer shells by a spring 7 of such a length that its pressure is substantially constant irrespective of the wear of the shock absorber. Friction material m is interposed as shown. In a modification, the hemispheres may be replaced by cones of revolution, and in another construction one hemispherical shell attached to one arm is interposed between two shells attached to the other arm, the three shells being pressed together by spring washers on the pivot pin. One arm is preferably attached to one of the relatively movable parts by a joint or hinge as shown in Fig. 4, which is similar to the arrangement shown in Fig. 2. In other forms, the hinge may comprise ball-and-socket joints, or the hemispheres in Fig. 4 may be replaced by cones of revolution.
Patent GB-521787-A (GB)
Title: Improvements in or relating to bomb tails
IPC: F42B10/06
Filed: 1939-04-29
Abstract: 521,787. Aerial bombs. ARMSTRONG, J.J.V. (Lambert, C. F.). April 29, 1939, No. 12844. [Class 9 (i)]  A bomb tail adapted to be readily disassembled for transport comprises four members each consisting of a sheetmetal stamping comprising a web 3, Fig. 2, and channelled margins 4, each margin constituting one half of a vane, and whose ends 6 7 are bent inwardly and have attachment flanges 8, 9 formed thereon. The margins with their extensions 6, 7 are bent about the lines 13, 14, through 45 degrees and the four stampings are assembled as shown in Fig..8. The margins are connected in pairs by pressed-out bosses 17, 18, Figs. 3, 4, having holes 19 and clenched on non-rotatable nuts 20 respectively, screws being passed through the holes 19 to engage in the adjacent nuts 20. The bomb tailmember 15, Figs. 7 and 12, to which the vanes are attached, has clenched-on nuts to receive screws passed through the holes in the attachment flanges 8, 19 of the vane members. The tail may be secured to the bomb 16, Fig. 12, by screws 28 passed through the tail into nuts 27 in an extension 26 on the bomb, or the tail may be welded directly to the bomb.
Patent GB-490785-A (GB)
Title: Improvements in the manufacture and production of oxidation products from paraffin hydrocarbons of high molecular weight
IPC: C07C51/225
Filed: 1937-05-06
Abstract: In the oxidation of paraffin hydrocarbons of high molecular weight at temperatures not above 115 DEG  C. in the presence of manganese compounds in which the manganese is contained in the anion and an alkali in the kation, as described in the parent Specification, the manganese compound is added in the form of a solution in water or an organic solvent such as acetone, methyl or ethyl alcohol, methylethyl ketone, acetonitrile or pyridine. After mixing the catalyst solution with the hydrocarbon to be oxidized the solvent is vaporized by gentle heating or removed by leading in air or other gas; or, when the mixing is effected in the reaction vessel, the solvent may be removed by the action of the oxidizing gas.  Examples describe the oxidation of brown coal paraffin wax and petroleum paraffin wax respectively with air or oxygen at 112-114 DEG  C., using potassium permanganate in water and acetone respectively.
Patent GB-786846-A (GB)
Title: Improved heat exchange unit for use in a refrigerator
Inventor: HUTCHINSON JOHN EDWARD
IPC: F25D21/08
Filed: 1956-04-27
Abstract: 786,846. Refrigerating DOLE REFRIGERATING CO. April 27, 1956, No. 12996/56. Class 29 A heat exchange unit for use as a reevaporator on the defrosting of a refrigerator system, comprises an evaporator coil 13 at least partly immersed in a body of heat storing material A, preferably water or alcohol, within a gas-tight container and a heating element 25 in heat exchange with the heat storing material and provided with a thermostatic control 31 for the heating element. The control may be adjustable and is preferably responsive to the temperature of the refrigerant. The gas-tight container is partially evacuated so that the side walls come into contact with the evaporator coils 13, and formers 22 are provided to prevent excessive bending of the walls. Liquid refrigerant from a separate evaporator during the defrosting enters the reevaporator by pipe 10 and circulates through the coils 13 before passing to the compressor in the gaseous state through pipe 12. An oil line 20 leads from the bottom of evaporator coils 13 to the bottom of loop 12a acting as a liquid trap in the pipe 12. Although the coils 13 are preferably circular in cross section, in a modification they may be rectangular.
Patent GB-129989-A (GB)
IPC: F25J3/04
Abstract: 129,989. Barbet et Fils et Cie, E. July 17, 1918, [Convention date]. Drawings to Specification. Helium; hydrogen.-In the separation of rare gases from atmospheric air by a process of rectifying the liquid air, the residue of mixed hydrogen and helium is freed from hydrogen by oxidation or by absorption of the hydrogen at about 190 degrees by wood charcoal; the charcoal is afterwards allowed to attain the normal temperature, and the occluded gas, which is then discharged, is stored.
Patent GB-582035-A (GB)
Title: Improvements relating to liquid fuel supply devices for use with internal combustionprime movers
IPC: F02M59/00
Filed: 1944-07-07
Abstract: 582,035. Burners. LUCAS, Ltd., J., and IFIELD, R. J. July 7, 1944, No. 13029. [Class 75 (i)] [Also in Groups XXVI, XXVII and XXVIII] A device for insertion in the fuel supply of internal-combustion prime movers, for example, jet propulsion engines, to increase the fuel supplied at starting comprises a body member a having a bore b c of two diameters and a spring-loaded, stepped piston q slidable in the bore under the action of fuel supplied under pressure to the small part of the bore, passages connecting an inlet h to the small part of the bore and a delivery connection i to the large part of the bore and a control valve m movable at will to different positions for establishing and interrupting communication between the delivery connection and the larger part of the bore and means forestablishing communication between the said passages under the control of the fuel pressure acting on the piston. Fuel from the pump entering at the inlet h forces the piston against the action of a spring s and delivers fuel from the large end of the bore to the delivery connection i and thus to the engine. When the piston reaches the end of its travel ports v are uncovered and the fuel flows directly from the inlet h fo the connection i. The sump connection j is connected to the fuel tank and fuel is drawn in through a non- return valve p on the down stroke of the piston. Passage x in the piston is to equalize the pressures on both sides of the large end of the piston when in the lower position. In a modified form the fuel first flows to a lightly loaded bye-pass valve which closes when a slight pressure builds up. The fuel then flows to the small end of the piston and discharges fuel to the engine from the large end of the bore. When the pressure rises still further another bye-pass valve opens and the fuel flows directly to the engine. A control valve for stopping the engine and a throttle valve for controlling the flow into the device are provided. The throttle valve has a small bye-pass for fuel for slow running of the engine.
Patent GB-328441-A (GB)
Title: Improvements in sparking plugs for internal combustion engines
IPC: H01T13/48
Filed: 1929-04-26
Abstract: 328,441. Linse, H. J. April 26, 1929. Sparking - plugs. - Transparent insulation is provided on its outside exposed surfaces with grooves, ribs, crossed helices, or prisms 22 for refracting laterally the light from within the cylinder. The central bore 23 of the insulator has a reflective surface, and is larger in diameter than the enclosed conductor. The protruding part 16 of the conductor is of less diameter than that within the insulator.
Patent GB-365918-A (GB)
Title: Improvements in or relating to feeding corks to bottle corking machines and the like
IPC: B67B1/00
Filed: 1931-05-04
Abstract: 365,918. Bottle-corking machines. DAUTEUIL, E. F., 17, Boulevard Felix- Faure, St. Denis, Seine, France. May 4, 1931, No. 13103. Convention date, Jan. 10. [Class 125 (ii).] A distributing apparatus for conical corks comprises an inclined conical rotary drum 18 open at each end, and having the centre of the larger end lower than the centre of the smaller end. On rotation of the drum the corks 25 arrange themselves with their smaller ends towards the shoot 26. Corks are supplied in bulk at a hopper 1 and pass to a distributing drum 5 which delivers them to a number of conical drums 18. The rate at which the corks pass to the drum 5 is controlled by an adjustable slide 4. The drum 5 has a row of holes in the wall thereof through which a cork is delivered to a drum 18 at each revolution. These corks pass through hoppers 13 which correspond in number to the holes in the drum 5. Overflow openings 19 are provided to prevent a surplus of corks being delivered to the drums 18.
Patent GB-951843-A (GB)
Title: A process for stabilising polyoxymethylenes
IPC: C08K5/5399
Filed: 1962-04-05
Abstract: Polyoxymethylenes are stabilized by adding thereto a compound of formula: <FORM:0951843/C3/1> where R is a hydrocarbon radical which may be bound to the nitrogen atom via a >CO, >N-C1= O or >SO2 group and which may be substituted by one or more halogen atoms, nitro groups or amino groups or by a radical of the formula: <FORM:0951843/C3/2> wherein R1, R2 and R3 which may be linked to the phosphorus atom through an O-, S- or N-atom are the same or different and are hydrocarbon radicals or O- or N-containing heterocyclic radicals, which radicals may be substituted by halogen atoms. The polyoxymethylene to be stabilized may have been stabilized by acetylated. Long lists of formulae of stabilizers are given.
Patent GB-743601-A (GB)
Title: Improvements in or relating to disc tillers
Inventor: MORICEAU PIERRE
IPC: A01B21/08
Filed: 1953-05-12
Abstract: 743,601. Agricultural implements. FERGUSON DE FRANCE SOC. ANON., H. May 12, 1954 [May 12, 1953], No. 13180/53. Class 6 (1). A disc gang for a disc tiller is arranged for lateral tilting and is provided with a bearing mounted in a bracket 3, a rotatable tubular support 1 mounted in the bearing and connected to the gang, a torsion member 4 mounted inside the tube and connected at one end to the gang and co-operating at the other end with an adjustable stop 7 so that the member resiliently resists tilting movement of the gang under the reactive forces of the soil on the gang. As shown the member 4 is provided with an arm 6 which is engageable by the stop 7. A tube 2 is connected to the gang and to the tube 1 and cooperates with an adjustable stop 9 which limits movement of the gang in a clockwise direction as seen in Fig. 3. The gang is attached to a frame 12 by means of a pin 11 fixed on the bracket 3 and the gang is angularly adjustable about a vertical axis by means of a toothed member 13 bolted to the bracket 3 which can be engaged in any selected position on an arcuate toothed sector 16 on a disc 17 attached to the machine frame. Two gangs may be mounted on the frame and may be arranged to turn the soil outwardly or inwardly. The machine is hitched to a tractor by a hitch linkage under the control of a hydraulic power lift mechanism. Each gang may be arranged so that the centre of gravity is at the same side of the tube 1 as the tube 2 so that on raising the machine by the tractor hydraulic lift mechanism the tube 2 will engage the stop 9.
Patent GB-294728-A (GB)
Title: Improvements relating to the heating or cooling of buildings
IPC: F24D3/14
Filed: 1927-05-17
Abstract: 294,728. Garratt, H. H., and Hope & Sons, Ltd., H. May 17, 1927. Radiators.-In the heating or cooling of buildings by means of pipes embedded in the walls, ceilings, or floors, cracking of the plaster is avoided by wrapping the pipes b with metallic shavings or thin ribbons a before embedding them in plaster c.