baber/WOPTO huggingface dataset:
Patent GB-1097560-A (GB)
Title: Cold separation of gas mixtures
IPC: B01D3/14
Filed: 1966-02-03
Abstract: 1,097,560. Cold separation of gas mixtures. PULLMAN Inc. Feb. 3, 1966 [March 11, 1965], No. 4870/66. Heading F4P. A liquefied gas mixture to be separated in a column 56 into gaseous argon rich nitrogen and liquid methane containing nitrogen is first flashed through a valve 62 into a drum 61, a portion of the liquid fraction so formed is withdrawn through valve-controlled line 63 and is at least partially vaporized in indirect heat exchange at 59 with feed mixture in a line 57 after which at the least partially vaporized liquid fraction is admitted at a point 65 to the column 56 whilst the remainder of the liquid fraction from drum 61 together with the vapour fraction is admitted to a point 67 of column 56 through a line 66. Product liquid methane withdrawn from the base of column 56 is passed through a reflux condenser 116 in the head of the column, and through heat exchangers 11, 24 in which its cold content is recovered and is discharged through a line 124 for use as fuel gas. Argon-rich gas is withdrawn from column 56 through line 69 leading to a column 72 where it is further enriched in argon which is withdrawn in the liquid phase through lines 85, 91 and expanded at a valve 94 into a flash drum 96. Liquid formed therein is at least partially vaporized in indirect heat exchange at 93 with liquid feed in line 91 and fed to a column 84 at a point 101 whilst the remainder of the liquid from drum 96 together with vapour is fed to the column 84 at a point 103. Product argon-rich liquid ' is withdrawn through a line 104 or argon-rich gas may be withdrawn through a line 105. The overhead gaseous fraction consisting mostly of nitrogen is withdrawn through a line 106. The liquid feed mixture for line 57 is derived from purge gas of an ammonia synthesis plant. Compressed feed mixture in a line 10 is cooled in exchanger 11 and condensed ammonia is separated in a drum 12. Residual ammonia vapour is absorbed at 16, feed mixture is cooled at 24, 25 to condensation temperature and fed to a separating drum 27 from which hydrogen-rich vapour is withdrawn through a line 28. A portion is withdrawn as product through a line 31 whilst the rest is exhausted at 29 and added to liquid withdrawn from drum 27 through an expansion valve 34. The combined expanded mixture is fed through a line 35 into a separating drum 26, liquid is expanded through a valve 38 into a flash drum 39 and condensate withdrawn through a line 46 is pressurized by a pump 47 and passed through lines 48, 49, 53 and a reboiler 55 in column 56 to feed line 57. Flash vapour from drum 39 is warmed in exchangers 24, 25 and added to tail gas in line 124.
Patent GB-349114-A (GB)
Title: Improvements in and relating to coin-freed apparatus for playing race games
IPC: G07F17/32
Filed: 1930-02-13
Abstract: 349,114. Race games. SMITH, G., 34, Clieveden Road, Thorpe Bay, Essex. Feb. 13, 1930, No. 4913. [Class 132 (ii).] A coin-freed apparatus for playing a race game ccmprises a pair of vertical rods k, Figs. 2 and 3, each having a competing figure, such as a monkey, attached thereto and being slidable in a vertical tube, which is formed to represent a tree and has a vertical slot through which passes the coupling means between the rod and the figure. The rods are raised by cords p wound on windlasses q, r by competitors rotating shafts 6 which carry hand-wheels 5. The windlasses are mounted on short shafts s, t along which they are slid, after prepayment, to bring radial teeth 1 into position to be engaged by driving pawls 3 on pawl arms 2 mounted on the shafts s, t, these arms being connected by links 9, 10 to the shafts 6. The shaft s, through a linkage 11 .. 13, rocks a shaft 14 having two arms 16, 17, the arm 17 through a rod 18 causing the arms of a third monkey, which represents an umpire, to rise and fall rhythmically. After the insertion of two coins in a single slot, the arm 16 rocks a hollow arm 31 and its shaft 32 which through arms 34, 36 rocks a shaft 37 provided with forks 4. These engage flanges w on the windlasses and slide them into driving position in which they are held by a notched detent 44, Figs. 2 and 5, engaging a pin 42 on an arm 41 on the shaft 37. The detent 44 is freely mounted on a shaft 45 provided with a sleeve 47, the shaft and sleeve carrying respectively arms 53, 55 having laterally projecting pins 54,56 to be engaged by discs o on the lower ends of the rods k, so that when a monkey reaches the top of its tree either shaft 45 or the sleeve 47 is rocked. The hub 48 of the the detent 44 is provided on each side with a step which is engaged by a tooth 50 on an arm 46 on the shaft 45 or by a tooth 51 on the sleeve 47, so that on a monkey reaching the top the detent is raised to release the shaft 37 which is returned by a spring 39 and moves the windlasses back to their initial positions. The rocking of the shaft 45 or sleeve 47 operates mechanism for returning a coin to the successful competitor.
Patent GB-808022-A (GB)
Title: Improvements in or relating to automatic control systems
Inventor: TURNER PETER JAMES ASPINALL
IPC: G05D23/20
Filed: 1955-02-18
Abstract: 808,022. Automatic temperature control systems. KELVIN & HUGHES Ltd. April 20, 1956 [Feb. 18, 1955], No. 4928/55. Class 38 (4). [Also in Group XL (c)] In an automatic temperature control system, an unspecified device detects temperature deviations and controls intermittently either a heater or a cooler as appropriate, there being a time delay before either the heater or the cooler is energized. The device 11 has a movable contact 12 which is stated to oscillate between contacts 13, 14, the proportions of each cycle during which the contacts 13, 14 are energized depending upon the sense and magnitude of the temperature error. Whilst a contact, e.g. 13, is energized, its associated valve 24 is cut-off by negative bias from rectifier 43 applied to the suppressor grid, and the " heater " relay 16 is de-energized. The valve 24 is connected as a Miller integrator so that as soon as contact 13 opens, the anode current rises, until after a predetermined time-delay the relay 16 is energized to actuate an undisclosed heater. Relay 17 actuating an undisclosed cooling device is similarly controlled. When the temperature is correct, contacts 13, 14 are each energized for half the cycle of the device 11. The time delay introduced by the integrators is preferably made equal to this half-cycle so that under correct conditions neither relay has time to be energized, and the appropriate relay is energized for periods proportional to any deviation. In a second embodiment, the time delay is effected by a thermistor in series with each relay.
Patent GB-139301-A (GB)
Title: Improvements in frame suspensions for chain-track vehicles
IPC: B62D55/10
Filed: 1919-02-27
Abstract: 139,301. Caterpillar Tractors, Ltd., (Holt Manufacturing Co.). Feb. 27, 1919. Endless-track vehicles. -The tracks are tensioned by springs acting through bell-crank levers. which also serve to prevent transverse movements of the truck frames relatively to the main frame, while allowing free play of the main supporting-springs. The front end of the main frame 10 is supported by a transverse equalizer 38 .from the two roller truck frames 13, and the rear end is supported by two laminated springs. 24, the centres of which may slide freely upon..collars 23 pinned to a transverse shaft 22 carried in. bearings 21 upon the truck frames. The vertical arms 30 of bell-crank levers .29 bear against the outsides of the bearings 21 on the trucks, while their horizontal. arms.are pulled upwards by helical springs 33 connected to the main frame. The bell-crank levers are pivoted on a transverse shaft 19 carried by the main frame. Lateral movement of the truck frames is prevented by flanges 43 which engage the sides of the vertical arms 30 of the bell-crank levers.
Patent GB-504217-A (GB)
Title: Improvements in and relating to carburation systems for internal combustion engines
IPC: F02M7/20
Filed: 1938-02-17
Abstract: 504,217. Spray carburetters. SOC. ANON. SOLEX. Feb. 17, 1938, No. 4994. Convention date, July 15, 1937. [Class 7 (iii)] In a carburetter for an engine having means, such as a variable pitch propeller and a centrifugal governor, that can be set to maintain the engine speed constant, a piston 15 or diaphragm, subject through conduits 16, 17 to the differential pressure on opposite sides of a throttle valve 2, is moved by variations in the density of the air upstream of the valve to correct the mixture for changes in altitude. The piston may actuate, directly or through a servo-motor, a fuel valve or a valve for controlling the primary or secondary air. As shown in .Fig. 1, the fuel nozzle 8 is fed from a floatchamber 12 through two calibrated orifices 9, 10 the latter being controlled by a needle valve 11 attached to the piston 15 which operates in a cylinder 14. If the throttlecontrol lever 6 and the lever 23 controling the setting of the constant-speed means remain fixed a reduction in the density of the air drawn in enables a spring 19 to lower the piston 15 to reduce the fuel supply. Movement of either of the levers 6, 23 is transmitted through a lever system to an abutment 26 against which the spring 19 seats, and the lever system is designed so that variations in the differential pressure caused by movement of the levers 6, 23 are balanced by movement of the abutment 26 to vary the tension of the spring 19. The fuel nozzle may discharge into the air stream on the engine side of the throttle and a compressor may be provided on the engine or air inlet side of the throttle valve 2. In the construction shown in Fig. 2, variations in the density of the air open or close the valve 2, and movement of the throttle-control lever 33 or the lever 23 controlling the constant speed of the engine varies the position of the abutment 26 controlling the tension of the spring 19 to regulate the position of the valve 2. The lever 33 also controls a rod 35 to enrich the mixture at large throttle openings.
Patent GB-1190703-A (GB)
Title: Control Device for the Control of the Decompression of the Working Fluid in Hydraulic Machines and Machines Provided with such a Device.
Inventor: FORICHON GASTON SEBASTIEN
IPC: B30B15/18
Filed: 1968-01-31
Abstract: 1,190,703. Hydraulic press. G. S. FORICHON. 31 Jan., 1968 [17 Feb., 1967], No. 5036/68. Heading B5F. A bleed device, for decompressing the working fluid in an hydraulic machine at the end of the working stroke of its ram, comprises an hydraulically damped relief valve seated in a chamber connected directly to the ram actuating chamber of the machine, the valve being biased to the closed position by a spring. The valve is initially lifted from its seat to vent the pressure fluid to reservoir either by manometric action when the pressure in the ram actuating chamber has reached a desired level, or by control rod action when the ram has reached the end point of its stroke, and is of such a shape that, once lifted, the fluid flowing past the seat quickly entrains the valve further away from the seat. This movement causes a cam carried by the valve to actuate switch gear which reverses the action of the pump thus initiating the return stroke, the relief valve being closed by the spring to terminate the bleed when the pressure in the ram actuating chamber has been lowered sufficiently. In the press shown in the figure, the relief valve 1, which is biased against seat S by spring 10 and the inbalance of pressure acting upon its various surfaces, carries cap 11 connected to rod 12, itself provided at one end with an adjustable nut adapted to be engaged by table 6 carried by the working piston 5. A spring biased pilot valve 23 connects the space above the valve seats to the space below it. For manometric operation, see Fig. 3 (not shown), the nut 13 is adjusted to stay clear of table 6 at all times and the spring 24 of valve 23 is adjusted so that valve 23 opens at the pressure developed in chamber 4 at the end of the stroke of the piston. When, at the end of the stroke, the pilot valve opens, pressure fluid flows through tube 36 to act upon shoulder 13 of the relief valve thus causing that valve to lift from its seat. The valve is immediately entrained downward and cap 11 actuates switch gear 29 thus retracting the piston, the relief valves subsequently closing upon the relief of pressure in chamber 4. For control rod operation, spring 24 is adjusted to keep valve 23 shut at all times, and nut 13 is adjusted so that it is engaged by table 6 at the end of the stroke of the piston. Upon engagement of the table with the nut the valve 1 is pulled slightly open and is subsequently entrained and further opened as before thus operating the switch gear to return the piston.
Patent GB-734840-A (GB)
Title: Composite metal article and method of joining metal parts
IPC: B23K35/02
Filed: 1952-02-26
Abstract: Metal parts, at least one of which is made of an alloy containing Cr, are joined by a binary brazing alloy of 40-80 per cent Pd and 20-60 per cent Cu.  A preferred alloy is 60 per cent Pd and 40 per cent Cu.
Patent GB-515036-A (GB)
Title: Improvements in cathodes for gas or vapour filled electric discharge tubes
IPC: H01J61/067
Filed: 1938-02-18
Abstract: 515,036. Thermionic cathodes. OERENSOFI, N. S. Feb. 18, 1938, No. 5073. [Class 39 (i)] A hot cathode for use in a gas or vapour-filled tube comprises an emissive material which has been formed from a heat-treated mixture of (i) finely-divided nickel, iron or cobalt having hydrogen absorbed thereon or combined therewith, (ii) a finelydivided electron emissive compound, such as barium peroxide or hydroxide and (iii) a finely-divided binding 'material such as Na2Si2O5, Na2Si03, or other similar alkaline metal compound. The material may be carried inside and as a coating on a nickel tube 1 supported by a tungsten lead 2 ; the tube-may be enclosed in a sheath of quartz 4 projecting beyond the tube or the lead 2 may be wound in a helix around the tube. The lead may be enclosed in glass.
Patent GB-765323-A (GB)
Title: Coke oven apparatus
IPC: C10B27/06
Filed: 1955-02-21
Abstract: 765,323. Gas manufacture. KOPPERS CO., Inc. Feb. 21, 1955 [March 1, 1954], No. 5110/55. Class 55 (2). A valve apparatus for a coke-oven ascension pipe 6 consists of a conical part 22 which, when in its upper position, seats against the end of the gooseneck pipe 8, a domed part 40 covering a central passage 24 in the part 22 so that, when the valve is closed, the spray liquor collects on top of the part 24 and the part 40 dips therein to prevent passage of gas from the collecting- main 12 to the oven 4. The parts 22, 40 are mounted on an operating-rod 36 between nuts 38; 48. When the rod 36 is depressed to open the valve, the lip 26 on the underside of the part 22 rests upon stops 28 on legs 30 projecting from a ring 18 which, with packing 20, seals the pipe 8 into the main 12. The upper part of the gooseneck 8 is provided with the sprayer 50 and an inspection door 54. In a modification, the valve is open when in its upper position, and closed when in its lower position.
Patent GB-766856-A (GB)
Title: A portable shielding container for a radio active source of radiation
IPC: G21F5/02
Filed: 1955-02-21
Abstract: <PICT:0766856/III/1> <PICT:0766856/III/2> A shielding container for radioactive material (see Group XX) includes a capsule 10 which consists of an aluminium container 14 for the radioactive source 13 (which may be thulium-170, americium-242 or cobalt-60) closed by a plug 15 of stainless steel annularly bonded to the container 14 at 16.  Specification 725,067 [Group XX] is referred to.
Patent GB-966248-A (GB)
Title: Pharmaceutical compositions containing imidazole compounds
IPC: C07D233/92
Filed: 1962-02-09
Abstract: 1-(2-Hydroxy ethyl)-5-nitroimidazole is prepared by heating 4-nitroimidazole with freshly distilled ethylene chlorohydrin. The product can be converted into an acid-addition salt, e.g. hydrochloride, hydrobromide, sulphate, nitrate, acetate, embonate or picrate, by reaction with excess acid in an organic solvent. The free base and its addition salts are used in controlling turkey blackhead (see Division A5).ALSO:Compositions for the treatment and prevention of turkey blackhead comprise as active ingredient 1 - (2 - hydroxyethyl) - 5 - nitroimidazole or a non-toxic acid-addition salt thereof together with a suitable diluent or carrier for oral administration.  Addition salts specified are the hydrochloride, hydrobromide, sulphate, nitrate, acetate, embonate and picrate. The active ingredient may be administered in turkey feed or drinking water, and a premix for subsequent dilution may be obtained by admixing the active ingredient with a grain carrier. In an example, the effectiveness of 1-(2-hydroxyethyl) - 5 - nitroimidazole is compared with that of the corresponding 2-methyl-derivative.  (For the preparation of the active ingredient see Division C2).
Patent GB-655658-A (GB)
Title: Improvements in or connected with musical boxes
IPC: G10F1/06
Filed: 1949-07-28
Abstract: 655,658. Musical-boxes. SELMER & CO., Ltd., H., and DAVIS, L. July 28, 1949, No. 5170. [Class 88 (i)] [Also in Group XV] The pins of a musical box pin member are moulded or cast integrally with the member. In one embodiment (Figs. 1-5), the pin member is a disc 1 of plastic material and is moulded integrally with pins 2 on its lower face, central axles 3, 4 projecting from each face, and internal teeth 5 on its upper face. The disc also carries a flange 6 on the outside of which are pictures or designs. The musical box case comprises two cylindrical portions 7, 8, each closed at one end, which fit together so that the two cut-away portions 9, 16 form a viewing aperture for the pictures on the flange 6. A bushed bearing 10 in the upper portion 7 carries the spindle 11 of a driving pinion 12 meshing with the teeth 5. The axles 3, 4 fit into bushes in the two case portions. The comb may be moulded of plastic material with pre-tuned reeds but preferably consists of metal reeds 20 secured in a metal block 21 which is placed in the mould, the lower portion 8 of the case being then moulded to incorporate the block 21. In the embodiment of Figs. 8-10 (not shown), the case simulates a television receiver cabinet and the pictures and pins are carried by separate drums. The picture drum is driven step-by-step by gearing from the pin drum under the control of a handle. The Specification also describes a pin-member in the form of an endless belt with integral pins.
Patent GB-250910-A (GB)
Title: A process for the production of new ester mixtures
IPC: C07C69/34
Filed: 1926-02-23
Abstract: 250,910. Claasen, W. April 14, 1925, [Convention date]. Esters; dicarboxylic acids.-The oxidation products of hydrogenated crude cresols, which comprise a mixture of alpha- and #-methyladipic acids together with homologues such as glutaric acid, are esterified as a whole with aliphatic, aromatic or cyclic alcohols. The resulting ester mixtures are especially useful as camphor substitutes in celluloid manufacture. According to the examples, (1) the methylcyclohexanols formed by catalytic hydrogenation of crude cresols are treated with boiling nitric acid and the evaporated oxidation products refluxed with ethyl alcohol containing a little hydrochloric acid; the ester mixture separates on pouring the product into water and consists of a colourless sweet-smelling liquid; (2) the oxidation products are esterified in the same way with methylcyclohexanols and yield a viscous oil.
Patent GB-437161-A (GB)
Title: Safety device for controlling the outlet of high pressure containers
IPC: G05D7/01
Filed: 1935-02-18
Abstract: 437,161. Fluid - actuated valves. KOOYMAN, J. C., 106, van Zuvlen van Nijevelstraat, and WIEGEL, H. P., 123, Wassenaar Dorpstraat, both in Nootdorp, Holland. Feb. 18, 1935, No. 5227. Convention date, Feb. 19, 1934. [Class 135] In a safety device for controlling the outlet of high pressure containers, a small flow of fluid is permitted even when the valve 7, 8 is seated, and the valve, which is normally held away from a seat 9 defining the outlet orifice 10 by a spring 12, has a blind cavity 15 against the end of which the fluid released from the container impinges. The valve comprises a guide portion 8 of triangular cross-section and a valve portion 7 of smaller diameter seating in a reduced part of the bore of the body 4 when the gas is first turned on or a drop in pressure on the outlet side due to a hose becoming detached or other cause, occurs. So that the pressure can build up again on the outlet side the valve is made leaky or provided with a byepass groove. The byepass groove may, alternatively, be in the seat 9 or in the reduced bore as at 14. A tube 16 on the member 3 which is coupled to the gas container projects into the cavity 15, this arrangement improving the impulse given to the valve. In another form, the tube 16 is dispensed with. Another modification has a conical ended pistonlike valve member with a larger cavity. The lateral face of the valve is somewhat concave and some of the clearance between it and the valve bore may be taken up by piston rings or a coiled wire. The device may be integral with a reduction apparatus or connected thereto by the thread 5.
Patent GB-993882-A (GB)
Title: Swashplate pump
IPC: F04B1/32
Filed: 1962-02-12
Abstract: 993,882. Reciprocating pumps. SUNDSTRAND INTERNATIONAL CORPORATION S.A. Feb. 12, 1962 [May 31, 1961], No. 5239/62. Heading F1A. A swash plate pump has a swash plate assembly 23 pivotable, by a hand-operated control rod 35 and link 34, about the neutral position to provide for reversal of flow. A spring mechanism 58 acting on the rod 35 biases the swash plate 28 towards its neutral position so as to counter the inertia effect of the reciprocating pistons 22. The swash plate 28 pivots about an axis 30 and the centres 25a of the piston ball ends 25 lie on a plane 31. The axis 30 is offset from this plane so as to produce a larger moment arm 55a than the moment arm 55b, thereby balancing the smaller mean pressure loading on the upper half of the swash plate. Owing to the compressibility effects of the liquid being pumped, the distribution of the piston loads, due to the liquid pressure, on the swash plate is as shown by graph G in Fig. 5. Alternatively the valve timing may be arranged so that on the inlet stroke the piston communicates with the delivery valve before reaching the end of its stroke, and vice versa on the delivery stroke. This produces a pressure gradient instead of the sharp cut off at the end of the delivery stroke shown in Fig. 5, to give a more equal pressure distribution above and below the axis 30. This method is used when the pump is connected to a motor which may tend to drive the pump during braking, in order to balance the pressure distribution (see Figs. 6-9, not shown).
Patent GB-1285651-A (GB)
Title: Improvements in lubricating mechanism
IPC: F01M1/08
Filed: 1970-02-04
Abstract: 1285651 Lubricating; valves JOSEPH VOGELE AG 4 Feb 1970 [11 March 1969] 5260/70 Headings F2A and F2V A lubricating mechanism wherein intermittently-fed lubricant is delivered to a lubricating point, e.g. adjacent a piston 5, comprises a spring-loaded outlet valve 3, which is intermittently opened by lubricant pressure and closed by valve-spring force, electrical sensing means 18, which emits pulses in response to the motions of the valve spindle 11, and evaluating means 19, which releases a warning signal if there is an interruption of the pulses. The means 18 consists of a piezo-electric element of sintered ceramic responsive to changes in pressure exerted by the valve spring 12. A preamplifier 26 is included. The pump plunger 8 is operated by a cam 9 running synchronously with the engine crank-shaft. In a modification (Fig. 3, not shown), the valve spindle moves in the opposite direction to open the valve, and the arrangement of the sensing means is modified accordingly. A plurality of valves may be provided.