baber/WOPTO huggingface dataset:
Patent GB-294580-A (GB)
Title: Improvements in or relating to the production of hydrogen
IPC: C01B3/50
Filed: 1928-07-25
Abstract: 294,580. Gasverarbeitungs Ges. July 26, 1927, [Convention date]. Hydrogen obtained from methane or methanecontaining gases is, after removal of carbon dioxide, treated with liquid nitrogen, preferably under pressure, to remove further impurities comprising chiefly traces of methane, carbon monoxide, carbon disulphide and other sulphides, arsenic compounds, oxygen and argon. The treatment may be effected by countercurrent flow in a scrubber. The hydrogen is preferably first dehydrated by cooling at increased pressure. The treated hydrogen may be passed at increased pressure and at a temperature of about 400‹ C over metallic catalysts viz. iron, nickel, cobalt or copper, and then dried to remove any oxygen compounds which may be present. The hydrogen obtained contains nitrogen, and the composition of the mixture may be regulated for use in ammonia synthesis. Reference is made to the removal of the carbon dioxide from the hydrogen by treatment with water at increased pressure, followed by treatment with basic substances. Reference has been directed by the Comptroller to Specifications 124,824, 231,444, 232,986. 238,175, and 242,563, [all in Class 8 (ii), Air and gases, Treating &c.], and 276,687.
Patent GB-1477545-A (GB)
Title: Drug delivery devices
IPC: A61P5/00
Filed: 1975-05-20
Abstract: 1477545 A monolithic drug delivery device ALZA CORP 20 May 1975 [7 June 1974] 21650/75 Heading A5B A monolithic drug delivery device comprises a solid particulate drug dispersed in a polymer matrix, the drug particles having been removed from the entire surface of the matrix to a depth of 5% of the overall thickness of the device. The removing may be carried out by washing with a liquid which is inert to the matrix, e.g. water, and may be performed at elevated temperature, e.g. an ethylene/vinyl acetate copolymer may be washed at 50-60C.
Patent GB-239234-A (GB)
IPC: F22B3/04
Filed: 1925-08-29
Abstract: 239,234. Internationale - Benson- Patent-Verwertungs-Akt.-Ges. Aug. 29, 1924, [Convention date]. Addition to 201,296. Engines working on special cycles; vapour engines.-In steam or vapour engines of the kind described in the parent Specification, wherein the working medium is evaporated in two stages, the working medium is evaporated completely in the first stage at a pressure a little below the critical pressure. The addition of heat in the second stage is so calculated in relation to the utilization pressure that any residual water carried along is evaporated.
Patent GB-928669-A (GB)
Title: Improvements relating to photographic printing apparatus
IPC: G03B27/72
Filed: 1961-06-15
Abstract: 928,669. Copying by scanning. LOGETRONICS Inc. June 15, 1961 [June 15, 1960], No. 21682/61. Class 40 (3). Photographic dodging apparatus uses a sharp scanning spot which passes through an original and subsequently falls on a photo-cell, the output of the photo-cell being separated into high- and low-frequency components which are used. to control the scanning spot brightness. A sharp spot on the screen of a cathode-ray tube 1 is focused on to an original 3 and printing paper 5. Light may be made to fall on a photo-cell 9 by a semi-transparent mirror 6 or by reflection from or transmission through the printing paper 5. A filter 11 separates high- and low-frequency components from the output of a photo-cell 9 which components are applied to the brightness grid of cathode-ray tube 1 as positive and negative feedback respectively. Means may be provided for applying these components with opposite polarity and the amplifier 12 in the high-frequency channel preferably has automatic gain control.
Patent GB-783649-A (GB)
Title: Improvements in pumps of the flexible tube type
IPC: F04B43/12
Filed: 1955-07-27
Abstract: 783,649. Rotary pumps. TECHNICON INTERNATIONAL, Ltd. July 27, 1955 [Oct. 22, 1954], No. 21736/55. Class 110 (2). In a pump for pumping a plurality of fluids through a series of flexible tubes 44 each tube is connected to an inlet pipe 12 and an outlet pipe 14 carried by junction boxes 34A and 34B respectively which are mounted on a platen 18. The platen 18 is made of phenolic impregnated fabric and is resiliently mounted on an aluminium or steel base 16. The operating mechanism comprises conveyers 58, 60 riding on tracks 54, 56 which are carried by a plate 52 pivoted to the base 16 as at 74 to permit removal of the tubes for cleaning, the conveyers being interconnected by pins 112 carrying tubeengaging rollers 120. The conveyers are driven by a motor and variable-speed drive 131 and gearing 127, 122, 124. The junction box 34B may be modified to effect mixing of the fluids being pumped (see Fig. 5, not shown). Specification 774,711, [Group III], is referred to.
Patent GB-500024-A (GB)
Title: Improvements in brakes for cycles and the like
IPC: B62L1/14
Filed: 1938-07-22
Abstract: 500,024. Cycle brakes. RADNALL, E. A. July 22, 1938, No. 21763. [Class 136 (i)] In brake mechanism for cycles &c. of the type in which block-carrying levers are moved inwards, to engage opposite sides of the wheel rim, by means of a resilient stirrup connected to Bowden or other operating-mechanism, each lever is connected to.the adjacent limb of the resilient stirrup at a position which is adjustable longitudinally of such limb. Each brake lever 16 is pivoted on a bolt 11, Fig. 2, (with head 15), mounted in a bracket 9 forming part of a clip 14 secured to the fork blade. The outer end of each lever 16 is formed with a hole to receive a reduced part 20 of a rotatable pin 19, through a transverse hole in which passes one limb of a U-shaped resilient stirrup 25, the ends of which are screw-threaded for adjustable connection to the pin, as by nuts 28, 29. The stem 34 of a brake-block holder 33 is secured by a nut 36 to a lug 35 formed integrally with the upper edge of the lever 16. The central portion 26 of the stirrup 25 engages an angle-section bridge-piece 37 formed with a slotted lug for the attachment of the nippled end 42 of a Bowden wire 43, the casing 44 of which abuts against a bracket 46 bolted &c. to the fork crown &c.
Patent GB-772619-A (GB)
Title: Improvements in and relating to spring driven motors for gramophones and the like
IPC: G11B19/00
Filed: 1954-07-27
Abstract: 772,619. Speed governors. GARRARD ENGINEERING & MANUFACTURING CO., Ltd., and BUTLER, W. July 6, 1955 [July 27, 1954], No. 21866/54. Class 57. Abutment means, such as a pad 15, cooperating with an axially-displaceable governorcontrolled disc 13 in a spring-driven gramophone motor is mounted on a lever 17 having a surface 21 for engagement by. any one of a number of manually-controlled speed selector means 23 of differing lengths whereby the abutment means may be moved to one of a number of predetermined positions in accordance with the speed required. The governor is driven from the spring case 1 of the motor through gearing 2, 3 and worm gearing 6 and comprises a number of weights 9 each connected by a resilient arm 10 to a fixed collar 11 and to a slidable collar 12 carrying the disc 13. The lever 17 is pivoted at 18 and urged by a spring 29 into engagement with one of three pins 23 adjustably screw threaded into an arm 24 which may be rotated about the axis of a shaft 25 by a lever 26, the latter co-operating with a speed selection scale (not shown). In order to provide a slight speed adjustment at each setting, the lever 17 has an inclined contact surface 21, Fig. 4, so that as the selected pin 23 is moved across the surface 21 a very small pivotal displacement of the lever 17 is effected. Sloping ramps 41 facilitate engagement of each pin 23 with the lever 17. To prevent play and backlash in the mechanism the shaft 25 is loaded by a spring 39 and the lever 17 has a pivot bush 31, Fig. 5, into the ends of which steel balls 32 are pressed, one ball engaging in a bore 33 and the other in an aperture 34 in a spring bearing plate 35. A leaf spring 37, Fig. 2, prevents the pins 23 from unscrewing when once adjusted. The three pins 23 may be adjusted to provide speeds of 33<SP>1</SP>/ 3 , 45 and 78 revolutions per minute.
Patent GB-170124-A (GB)
Title: Improved manufacture of wrought iron
IPC: C21C3/00
Filed: 1920-07-21
Abstract: 170,124. Wade, H., (Byers Co., A. M.). July 21, 1920. Purifying and refining.-In the manufacture of wrought iron, mild steel is granulated, mixed at a welding heat with molten slag, and the slag is drained from the resulting ball or bloom. The molten slag, which consists essentially of iron silicates containing ferric and ferrous oxides, is stored in a furnace 2 under a layer of carbonaceous material, and is fed into large iron moulds 4. The moulds are provided with stripping- lugs 7, are open at the top and bottom, and rest on trucks 5 provided with pouring-lips 8. The steel is teemed from a ladle 9, and on entering the slag becomes granulated therein, and the granules sink and cohere. Surplus slag is then drained into a ladle 11, and the mould is brought between the plungers 13, 14 of a press, and the bloom is removed to a soaking-pit. In a modification, a tilting mould is used, or the mould may be replaced by a ladle from which the resulting ball is discharged on to a grating, to remove surplus slag, and then taken to a press. In another modification, the metal is granulated before entering the slag by pouring through a refractory tube fitted with a splash plate; or the solid or molten granules and molten slag may be fed together into a receiver or mould. The surplus slag may be revivified by the addition of silica and returned to the furnace 2.
Patent GB-479075-A (GB)
Title: A speed indicator
IPC: G01P3/64
Filed: 1936-08-08
Abstract: 479,075. Sandglasses. LOW, A. M. Aug. 8, 1936, No. 21911.' [Class 139] For use by a stationary observer for indicating the lap speed of a travelling object on race tracks of different lengths, an hour-glass type of instrument is used having a casing provided with a plurality of speed scales, corresponding to track circuits of different lengths. A granular or liquid medium falls from a bulb A through a constricted passage B into a tube C, fitted with the said casing. A byepass H is provided for returning the sand &c. quickly to the bulb A. The byepass may connect with the bottom of the tube C, and it may be fitted with a non-return valve.
Patent GB-486630-A (GB)
Title: Improvements relating to packages for cod liver oil, liquid dyes, iodine and the like
IPC: B65D33/36
Filed: 1937-08-11
Abstract: 486,630. Capsules. SALFISBERG, L. L. Aug. 11, 1937. No. 22076. Convention date, Aug. 21, 1936. [Class 81 (i)] [Also in Group XVII] A package of the type comprising opposed layers 1, 2 of regenerated cellulose &c. bonded together to form a. container 3 for cod liver oil, dyes &c., at least one discharge neck 6, a flap structure 9 extending across the neck 6, which may be torn, e.g. by notches 4, 5, 5a, and weakening lines, to form an orifice of approximately predetermined size through which the contents may be squeezed or poured. The regenerated cellulose &c. layers 1, 2 are preferably coated internally with a thermoplastic adhesive 7, 8 heat crimped together around the container 3. The discharge necks may be of different diameters so that, from the one container, the contents may be optionally squeezed or poured. The container 3 may be of substantially rectangular or circular form.
Patent GB-860237-A (GB)
Title: Improvements in and relating to echo sounding and echo ranging apparatus
Inventor: HALLIDAY WILLIAM
IPC: G01S15/42
Filed: 1956-10-10
Abstract: 860,237. Echo-sounding and distance-measuring apparatus. KELVIN & HUGHES Ltd. Oct. 10, 1957 [Oct. 10, 1956], No. 22105/59. Divided out of 860,236. Drawings to Specification. Class 40 (7). The invention claimed relates to the feeding to the recorder of an adjustable-magnitude signal from the sounding transducer as disclosed in Specification 860,236. Specification 604,499 also is referred to.
Patent GB-686081-A (GB)
Title: Improvements in or relating to multi-stage centrifugal pumps
IPC: F04D1/10
Filed: 1950-09-08
Abstract: 686,081. Centrifugal pumps. HUMBLET, F. Sept. 8, 1950 (Sept. 10, 1949], No. 22205/50. Class 110(i) A centrifugal pump particularly for use ir fire fighting, comprises low and high pressure impellers on the same shaft and separatec from each other by a partition, the low pressure stage alone being connected to the suction chamber, while the outlet of the low pressure stage is con. nected to the inlet of the high pressure stage by a pipe which car be closed by a rotary plug valve. When a rotary plug valve 16 is in the position shown, the low pressure impeller 3 and the high pressure impeller 4 of a centrifugal pump are connected in series by way of a duct 20. Water can be drawp from a tank (not shown) by way of pipes 14. 12 or from a hydrant or other source connected to the pump inlet 9. The water is discharged at high pressure through an outlet 11 and, it may be, at low pressure through an outlet 10. If water at low pressure only is required, the valve 16 is closed, and any water which the impeller 4 contains is drained off through a duct 18 and the valve 16 so as to unload the impeller. The connection to the tank can be closed by a valve 13. In a further position of the valve 13, the connection to pipe 12 is closed and a connection to a pipe 15 is opened, permitting the tank to be refilled by the impeller 3. Each pump stage may comprise more than one impeller.
Patent GB-598027-A (GB)
Title: Improvements in duplicating machines
IPC: B41L11/00
Filed: 1945-08-29
Abstract: 598,027. Rotary duplicators. STEVENS, A. H. (Smith & Corona Typewriters, Inc., L. C.). Aug. 29, 1945, No. 22216. [Classes 100 (i) and 100 (ii)] Copying documents; printing- surfaces; feeding sheets.-A rotary mirror-script duplicator is provided with a device for holding a blocking- out sheet 75 adapted to mask part of the master sheet, the device being adjustable about the axis of a drum 10 and releasably secured in adjusted position. The leading- end of the sheet 75 has two eyelets engaging studs 64, 70, Fig. 3, carried by arms 56, 59 respectively, each arm being rotatable about a shaft 11 carrying the drum and being locked in adjusted position by a spring-pressed pin 72 adapted to snap into any one of a series of sockets 71, Fig. 2, in the adjacent end of the drum. The stud 70 is carried by an arcuate plate 66 slidable axially of the drum on the top 63 of the arm 59 and spring- pressed outwardly to stretch the blocking-out sheet taut. In a modification, Fig. 10 (not shown), an additional arm similar to the arms 56, 59 is provided at each end of the drum. and in a further modification, Fig. 13, a blocking-out web 88 is provided in addition to a blocking-out sheet, the end of the web passing through a slot 87 in the drum to a winding-up roller 88. The Specification also describes sheet-feeding mechanism, damping- mechanism, and clamping-means for the leading- edge of a master sheet 77 all substantially the same as those described in Specification 543,845.
Patent GB-1525813-A (GB)
Title: Grid for carrying randomly dumped packing in a mass transfer column
IPC: B01J15/00
Filed: 1976-05-28
Abstract: 1525813 Grid for supporting particles RASCHIG GmbH 28 May 1976 [14 June 1975] 22232/76 Heading B1F A grid for carrying randomly dumped packing in a mass transfer column comprises walls 4 at the same level which cross each other to form crossings and define grid openings and are provided at the top of only the crossing-coincident part of the periphery of each grid opening with spacing means 5 which extend above the top of another part of the periphery of said grid opening.
Patent GB-586339-A (GB)
Title: Improvements relating to the control or stabilisation of the frequency of electrical oscillations
IPC: H03B21/01
Filed: 1944-11-11
Abstract: 586,339. Valve generating circuits. SAINT, H., COBB, R. B., and SLATER, A. L. Nov. 11, 1944, Nos. 22233/44 and 25687/45. [Class 40 (v)] In an oscillation generating system in which the outputs of two or more oscillators, stabilized by magnetostrictive resonators, are combined to produce sum and difference frequencies, the temperature coefficients of the individual oscillators are such that one of the output frequencies is practically independent of temperature variations. The Figure shows two Hartley type oscillators whose tuning inductances are associated with magnetostrictive elements 324 whose resonant frequencies are approximately equal to those of the electric circuits with which they are associated. Heterodyning is effected in the hexode valve, the output being taken from the anode circuit. The system may be kept at an even temperature by means of a medium of good heat conductivity, or if this is not practicable, the oscillations of the circuit whose temperature is varying fastest may be damped in order to keep the frequency constant.
Patent GB-1222652-A (GB)
Title: Method and apparatus for stacking hexahedral members, for example bricks
IPC: B65G49/08
Filed: 1967-02-16
Abstract: 1,222,652. Stacking bricks etc.; grippers. DUNCAN STEWART (BONNYBRIDGE) Ltd. 17 April, 1968 [16 Feb., 1967; 13 May, 1967], Nos. 7473/67 and 22287/67. Headings B8C and B8H. Articles, e.g. bricks, to be stacked are turned on their sides and formed into a row which is lifted by a clamping device and removed to form part of the stack. Bricks from a brickmaking machine 12 are conveyed on endless belts 13, 14 to a transversely movable trolley 17, having two sets of rollers 18, 19, arranged so, as one receives a brick from one of the belts 13, 14, another brick is pushed from the other, on to rollers 28. The bricks are then turned on their side by a pair of endless belts 30, 31 each twisted through 90 degrees and are individually delivered on to rollers 7 which lower to place the bricks on endless belts 3 and a device (171), Fig. 5 (not shown), positions each brick correctly. The belts 3 move intermittently to form a row of bricks spaced slightly apart. The first brick of the row actuates a valve causing plates 55, 56 to pivot, clamp the row and raise it clear of the belts 3. The plates 55, 56 are hinged on a frame 53, which is resiliently mounted via plungers (54), Fig. 2 (not shown), to the ram (52) of a piston and cylinder device 51 attached to a trolley 44. The trolley is moved by piston and cylinder devices 45, 46 and has buffers 73 which engage either the frame 66 or stops 71, 72 mounted on a rotatable shaft 62. These stops can thus arrest the movement of the trolley at three positions on each side of its loading position. A stack can be formed on a pallet on one side of the loading position with a base three rows wide, and a similar stack can be formed on a pallet on the opposite side. This change over is controlled by a cam (112), Fig. 5 (not shown), rotated by shaft 62 through gearing 115. In a modification (not shown) the brick tipping belts 30, 31 are replaced by inclined parallel roller conveyers with one preceding and slightly above the other and the bricks moving under gravity. Between the conveyers is a vertical L-shaped roller platform, with the horizontal face level with the first conveyer and pivoted about the edge opposite to that to which the upright face is fixed. Balance is maintained by an arm with a weight, extending beyond the pivot edge, until a brick is delivered on to the horizontal face causing the platform to pivot and the brick to tip on its side on to the previously vertical face which is now horizontal and level with the second conveyer. During the tipping a plate arrests the flow of bricks from the first conveyer.
Patent GB-1306707-A (GB)
Title: Process for preparing barium-containing dispersion
IPC: C07C301/00
Filed: 1970-05-08
Abstract: 1306707 Lubricants; fuels CONTINENTAL OIL CO 8 May 1970 [21 May 1969] 22351/70 Headings C5F and C5G  Lubricating oil and diesel oil additive compositions are prepared by (a) forming an admixture (i) 5 to 55 parts by weight oil-soluble dispersing agent, (e.g. sulphonates and carboxylates), (ii) 15 to 85 parts by weight nonvolatile diluent oil, (e.g. mineral or synthetic lubricating oils), (iii) a process solvent (i.e. an aliphatic or aromatic hydrocarbon or an ether alcohol having a boiling point below 150‹ C.), (iv) water, (b) adding to the admixture of step (a) an alcoholic solution of barium oxide or hydroxide, wherein the alcohol consists of ether alcohols represented by the formula ROCH 2 CH 2 OH wherein R is a C 1  to C 6  hydrocarbon group, ether alcohols represented by the formula wherein R is a C 1  to C 4  hydrocarbon group, or 2 aliphatic monohydric alcohols containing 1 to 6 carbon atoms, said alcoholic solution of barium oxide or hydroxide being in an amount to provide from 55 to less than 90% of the total amount of barium required, (c) passing CO 2  through the admixture while maintaining the temperature of the admixture in the range of 75‹ to 95‹ C., the amount of CO 2  being not more than 100% of the amount required to convert the excess barium oxide or hydroxide to barium carbonate, (d) adding to the carbonated admixture of step (c) an additional amount of said alcoholic solution of barium oxide or hydroxide, wherein the amount is the remainder of the requirement, (e) removing any remaining volatile materials, and (f) carbonating the admixture, said process being characterized further in that: (1) the amount of process solvent in step (a) (iii) is from 40 to 75% by weight of the weight of dispersing agent, non-volatile diluent oil, and alcoholic solution of basic barium compound, (2) the amount of water is from 0À25 to 3À0 moles per mole of overbasing barium employed, and (3) the amount of alcoholic solution of barium oxide or hydroxide added in steps (b) and (d) being such that it contains 10-55 parts of barium. Lubricating oils specified are polypropylene, polyglycols, diesters, phosphorus acid esters, dialkylbenzenes, fatty oils and alkylated tetrahydronaphthalenes.
Patent GB-1123996-A (GB)
Title: Fuel element for nuclear reactors
IPC: G21C1/08
Filed: 1966-05-19
Abstract: 1,123,996. Nuclear fuel elements. SIEMENSSCHUCKERTWERKE A.G. 19 May, 1966 [19 May, 1965], No. 22413/66. Heading G6C. A nuclear fuel element, for a reactor using water at super-critical pressure as coolant and moderator, comprises fuel rods 1 and tubular inserts 3, flow guiding and whirling means for the coolant, and aligning means for the fuel rods, being provided on the walls of the tubular inserts facing adjacent fuel rods. Coolant flows both through and around the tubular inserts. In modifications (a) Figs. 5 and 6 (not shown), the tubular inserts surround the fuel rods; (b) Figs. 8 and 9 (not shown), coolant returns downwardly through the element, passing over superheater rods, and is discharged through a distribution device serving also for the supply of coolant; (c) Fig. 10 (not shown), coolant is circulated through a U-shaped tube before coming into contact with the fuel and superheater rods. The coolant flow guiding means attached to the tubular inserts may comprise helical ribs or projections. The tubular inserts may serve for the introduction of control rods.