baber/WOPTO huggingface dataset:
Patent GB-846154-A (GB)
Title: Gravity concentrator
Inventor: TETLAW JOHN ALBERT
IPC: B03B5/62
Filed: 1957-11-05
Abstract: 846,154. Washing granular materials; separating solid materials. MOBILE MINERAL EXTRACTIONS PTY Ltd. Nov. 5, 1957, No. 34440/57. Classes 82(2) and 117 Heavy and light fractions of a mixture are separated in the dry state or in a liquid medium by a concentrator comprising (Fig. 2) a frusto-conical member 10 which is open at both ends, supported so as to be rotatable about its axis 11 and so that its generatrix in its lowest position 34 slopes downwardly from the smaller to the larger end, and provided at the smaller end with a continuous imperforate annular step 26. Step 26 is preferably adjustable in height and may consist of an iris diaphragm. When operated dry, the mixture is fed on to the rotating member 10 at about the middle of line 34; the heavy fraction builds up against step 26 and overflows into cylinder 24 and thence into a collector tray, while the tailings fall from the larger end of the member. For wet operation, the member 10 either is immersed in water so that at least the whole of the aperture at the smaller end is submerged, or itself acts as a watercontainer. In a further embodiment, a plurality of co-axially mounted members is used, a higher member discharging concentrate into the next lower member; Fig. 12 shows such a concentrator which embodies three members 187, 192, 195 and means for feeding the tailings from one member back into the preceding member, said means consisting of rotating rings 230 provided internally with buckets 237.
Patent GB-1004809-A (GB)
Title: Improvements in or relating to alkenyl ethers
Inventor: FLINT JOHN ANTHONY
IPC: C07C41/01
Filed: 1964-08-24
Abstract: Alkenyl ethers are prepared by heating a 1,2-halohydrin ether which contains the group <FORM:1004809/C2/1> where X represents chlorine, bromine, or iodine, with an alkali metal alkoxide dissolved in or suspended in a sulphone or a sulphoxide, to cause dehydrohalogenation.  The above group may be attached to an alkyl group or another similar group so as to form the structure <FORM:1004809/C2/2> The reaction is preferably carried out at such a temperature that the alkenyl ether and alkanol liberated, distil out of the reaction mixture. Numerous examples of reactants and solvents are given.
Patent GB-378300-A (GB)
Title: Improved process for killing or eliminating flies and preparations therefor
IPC: A01N25/02
Filed: 1931-12-12
Abstract: Hydrogenated products devoid of unpleasant odour and suitable as vehicles for insecticides are obtained by hydrogenating a lignite tar oil at 390 DEG  C. and a pressure of 200 atmospheres in the presence of a tungsten sulphide catalyst, and by hydrogenating an oil obtained from high-temperature carbonization coal tar at 350 DEG  C. and 200 atmospheres in the presence of a catalyst comprising cobalt and molybdenum sulphides and further treating the product with hydrogen at 300 DEG  C. and 100 atmospheres in the presence of a nickel catalyst.ALSO:Preparations for killing flies, particularly those intended for spraying, consist of an insecticidal substance and a product obtained by hydrogenation of mineral oils, other than petroleum oils whereby the unpleasant odour of the nonhydrogenated substances is removed.  Suitable insecticidal substances are pyrethrum or derris extracts or esters, ethers, and substitution products of benzoic acid.  According to examples salicylic acid phenyl ester, or a mixture of pyrethrum extract, 5-chloro-2-hydroxybenzoic acid amyl ester and isobornyl acetate are suitable insecticides.  Hydrogenated products are obtained by hydrogenating a lignite tar oil at 390 DEG  C. and a pressure of 200 atmospheres in the presence of a tungsten sulphide catalyst, and by hydrogenating an oil obtained from high temperature carbonization coal tar at 350 DEG  C. and 200 atmospheres in the presence of a cobalt and molybdenum sulphide catalyst and further treating the product with hydrogen at 300 DEG  C. and 100 atmospheres in the presence of a nickel catalyst.
Patent GB-1270958-A (GB)
Title: A valve arrangement
IPC: F16K11/07
Filed: 1969-07-09
Abstract: 1,270,958. Valves. DANFOSS A.S. 9 July, 1969 [9 July, 1968], No. 34593/69. Heading F2V.  Pilot operated fluid control valve consists of a longitudinally slidable or spool type main valve member 17 displaceable by the fluid, and a pilot valve 44 with its axis parallel to the axis of the main valve, and a connecting element 33 which has a sealing surface bearing on a lateral surface of the main valve housing and which carries the pilot valve on a lateral surface 41 at right angles to the sealing surface. As shown, the valve has a pressure inlet 14 and selectively controls two work ports 13, 15 and two exhaust ports 12, 16. The pressure inlet 14 communicates with the solenoid pilot valve seat orifice 40 through a passage 38 in the element 33 and through a port 29, passage 31 and slot 36 in a sealing gasket, with a smaller diameter piston end of the spool. The other end of the spool carries a larger diameter piston 23 and communicates with a chamber 53 of the pilot valve which is vented at 52 by a closure end 50 of the pilot valve. Manual actuation of the pilot valve is provided by a plunger 55. In other embodiments, two symmetrically arranged pilot valves are provided. These valves may also be electromagnetic (44, 144), Fig. 2 (not shown), or controlled by fluid pressure (244, 244a), Fig. 4 (not shown), or thermostatically.
Patent GB-972777-A (GB)
Title: Gearbox selector mechanism
Inventor: PHILLIPS VICTOR NOEL
IPC: F16H63/30
Filed: 1962-09-11
Abstract: 972,777. Change-speed control. FORD MOTOR CO. Ltd. Aug. 30, 1963 [Sept. 11, 1962], No. 34609/62. Heading F2D. A vehicle change-speed gear providing four forward and one reverse ratio has shift forks 13, 15, 18 ; forks 13,15 being axially slidable on a rod 9 to engage first and second, third and fourth ratios respectively, and fork 18 being fast with a rod 17 axially slidable in a housing 1 and controlling reverse. The forks are connected by levers 3, 5, 7 to rotatable rods which are connected in a conventional manner to the levers at the lower end of a steering column gear shift. On rotating lever 7 clockwise, the fork 18 shifts a reverse idler into mesh with gear teeth on the exterior of the first gear synchromesh assembly (none of which is shown) to give reverse, in which position levers 3, 5 are locked in their neutral positions by drift pins 31 engaging recesses 41 in these levers. On rotating lever 7 anticlockwise, immediately the idler disengages the gear teeth of the synchromesh assembly, and before rod 17 is in its extreme right hand " neutral " position, grooves 35 release the drift pins 31 from the recesses 41, and if lever 3 is now rotated clockwise to engage first gear an abutment 43 on the lever 3 engages an abutment 45 on the reverse lever 7, and moves the rod 17 to its neutral position as first gear is being engaged. This prevents the possibility of the first gear synchromesh assembly meshing the reverse idler and so preventing the engagement of first gear. Levers 3, 5 are interlocked by a drift sleeve 18a in which are mounted pressedapart balls 20 engaging recesses 21, 23 in the levers.
Patent GB-1274293-A (GB)
Title: Improvements in or relating to a roller shutter door assembly
Inventor: BAILEY GEOFFREY
IPC: E06B9/60
Filed: 1969-07-09
Abstract: 1,274,293. Roller shutters. WESTLAND ENGS. Ltd. 9 July, 1970 [9 July, 1969], No. 34625/69. Heading E1J. A roller shutter assembly comprises a shutter 10 attached to a clip 15 which releasably engages the edge of a slot 14 in a drum 11, and a spring 13 attached at its ends to the drum and a shaft 12. The drum may be rotated about the shaft by levers inserted into apertures in raised portions 18, to allow detachment of clip 15 and adjustment of the spring tongue.
Patent GB-770438-A (GB)
Title: Improvements in conveyors
Inventor: COLLIS LESLIE ALFRED
IPC: B65G41/00
Filed: 1953-12-14
Abstract: 770,438. Endless conveyers. COLLIS & SONS, Ltd., J. Dec. 7, 1954 [Dec. 14, 1953], No. 34728/53. Class 78 (1). In a portable loading conveyer of the kind in which the frame carrying the endless conveying element is pivoted intermediate its ends on a carriage so that it may be adjusted to extend upwardly from left to right or right to left as viewed from the side, the driving head of the conveyer is mounted on the frame intermediate one end of the frame and the pivot of the frame, and the pivot is mounted so that its height above the ground may be adjusted. As shown, the frame 10 supporting a conveyer belt C is pivoted at 16 on a triangular framework 17 which is pivoted at 18 on a carriage 11, and is held in an inclined position by an arm 12. One end of this arm is pivoted to the carriage at 13 and the other end slides in a slot in a plate 14 and is secured in position by a locking lever 15. The pivot 16 is connected to a ram 19 whereby its height may be adjusted by operation of an hydraulic hand pump 20. The belt driving drum 31, driven by a motor 22, is slidably mounted in the driving head H by lugs 32 on rods 34 whereby the tension of the belt may be adjusted by screws 33.
Patent GB-1079716-A (GB)
Title: Improvements in liquid fuel burning heaters of the blue flame type
Inventor: HEBARD HUGH CHARLES
IPC: F23D3/00
Filed: 1965-08-13
Abstract: 1,079,716. Wicks for liquid fuel burners. ALADDIN INDUSTRIES Ltd. Aug. 11, 1966 [Aug. 13, 1965], No. 34767/65. Heading F4T. An annular wick 1 for a liquid fuel burner of the blue flame type has plates 2 secured to it at diametrically opposite points by means of integral tags 3 which pierce the wick and are turned back, each plate being formed with two longitudinally spaced projections 4, 5 which are received in slots 8, 9 in a carrier 6 or both projections are received in the larger upper slot 8 to allow the wick to be fixed to the carrier in two alternative positions.
Patent GB-411490-A (GB)
Title: Improvements in or relating to so-called kerr cells
IPC: G02F1/07
Filed: 1932-12-08
Abstract: 411,490. Electro-optical light valves. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London, and BRETT, G. F., 23, Cross Flatts Avenue, Leeds. Dec. 8, 1932, No. 34857. [Class 40 (iii).] A Kerr cell has two sets of interleaved electrodes 3, made of insulating material with a conductive coating and mounted between spacers 5 on rodlike carriers 4. The electrodes are preferably of mica coated with gold or other metal over part of their surface, and have two holes 2 for the passage of the rod-like carriers. The whole assembly is preferably mounted in a glass envelope having external conductors like a thermionic valve.
Patent GB-505050-A (GB)
Title: Improvements in or relating to spring suspension for a vehicle wheel
IPC: B62K25/28
Filed: 1937-12-16
Abstract: 505,050. Spring frames for motorcycles &c. AUTO UNION AKT.-GES. Dec. 16, 1937, Nos. 34880, 34881, 34882, and 34883. Convention dates, Dec. 16, 1936, Feb. 18, 1937. March 18, 1937, April 2, 1937. [Class 136 (iii)] A spring suspension for a motor-cycle &c. wheel comprises a pair of link members 'or arms forming a fork pivoted to the vehicle frame and carrying the wheel, each of the arms engaging a slot in a piston sliding against the action of opposed coil springs in two opposed cylinders secured to the vehicle frame, each of the arms being mounted in the slot by means of two joints or abutments respectively below and above the longitudinal axis of the arm so as to allow both longitudinal and pivotal movements of the arm in the slot ; and is characterized in that each of such joints is constituted by two coacting guide members rigidly mounted on or integral with the piston and arm respectively, or by a resilient member (e.g. of rubber) secured to the piston and arm and acting in shear to effect a guiding action. In the form shown. in Fig. 1, the fork arms 3, pivoted at 4 to the main frame 5, are . formed with flattened ends 6, each of which passes through a slot 7 in the solid central part of a piston 8 and engages by an elongated slot 10 a transverse pin 9 passing through the piston, the slot permitting the required sliding and pivotal movements. The piston 8 slides in upper and lower cylinders 11, which contain springs 14 and are connected together by a tubular member 12, each pair of connected cylinders being detachably secured to the frame 5 by bolts 13. In a modification, the upper and lower edges of the flattened ends 6 are provided with curved abutment members adapted to. roll on screw bolts mounted (e.g. adjustably) in the. piston so as to,project into the slot 7. In another modification, the piston carries rollers engaging curved abutment cheeks on the upper and lower edges of the end 6. In a further modification, deformable rubber buffers are interposed between the piston and the upper and lower edges of the end 6, and are secured thereto by discs having flanged edges embracing shouldered parts. The ends (i may be of channel form, providing flanged top and bottom edges of increased bearing area. Specification 450.024 is referred to.
Patent GB-922803-A (GB)
Title: 4-hydroxy (and acyloxy)-3-keto-steroids
IPC: C07J1/00
Filed: 1961-09-28
Abstract: The invention comprises D 4,6-androstadiene-4,17b -diol-3-one and the corresponding 4,17-diacetate, 17a - methyl- D 4,6- androstadiene-4,11b ,17b - triol-3-one, 19-norD 4,6- androstadiene- 4,17b - diol-3-one, D 4,6- pregnadiene-4,17a -21-triol-3,11,20-trione and the corresponding 17a ,20:20,21-bismethylenedioxy and 17a ,20:20,21- bismethylenedioxy- 4-acetate compounds, D 4,6- pregnadiene- 4,11b ,17a ,21-tetrol- 3,20-dione and the corresponding 17a ,20:20,21- bismethylenedioxy compound, and D 4,6-pregnadiene-4,17a -diol-3,20-dione and the corresponding 20-ethylene ketal compound, and a process for the preparation of 4-hydroxy-3-keto-D 4,6-steroids by dissolving 3-keto-D 4-steroids in a tertiary aliphatic alcohol and then reacting with oxygen, e.g. atmospheric oxygen or pure oxygen, in the presence of an alkali metal salt of a tertiary aliphatic alcohol at a temperature of from 10 DEG to 50 DEG C.  The above process may be extended in that 4-hydroxy-3-keto-D 4-steroids are prepared by hydrogenating the 4-hydroxy-3-keto-D 4,6-steroids until one mol of hydrogen is absorbed, and the resulting 4-hydroxy-3-keto-D 4-steroids may be further treated by acylating with a carboxylic acid chloride or anhydride to form 4-acyloxy-3-keto-D 4-steroids. In the above process the initial 3-keto-D 4-steroids may be of the androstane, 19-norandrostane, 17a - hydroxypregnane and 17a ,21- dihydroxypregnane series.  It is preferable to pass the oxygen free from carbon dioxide and water into a solution of the steroid reactant or to allow a solution of the steroid in a large open container to stand in contact with the air.  Therapeutic compositions comprise 4-hydroxy (or acyloxy)-3-keto-D 4- and D 4,6-steroids and a pharmacologically acceptable carrier.  The compositions have hormonal properties as described in Specifications 839,908, 864,610, 876,721 and 888,665. Specification 899,219 also is referred to.
Patent GB-351886-A (GB)
Title: Improvements in or relating to vehicle bodies
IPC: B60R21/08
Filed: 1930-11-20
Abstract: 351,886. Window guards. ABT, R. WOHLER-, Wohlen, Switzerland. Nov. 20, 1930, No. 34988. Convention date, Nov. 22, 1929. [Class 20 (iii).] A device for protecting the passengers in a closed road-vehicle comprises a number of padded or upholstered members 2, 3 which are normally locked in a lower inoperative position but, in the event of two vehicles colliding, are automatically released, and elevated in guides by the action of springs 4, so as to cover the windows in the interior part of the vehicle. The protective members are held in their inoperative position by hooked catches 10, 10<1>, which engage transverse bolts on the members and are formed with arms 12<1> associated with operating cables 13, 22, while catches 12 engage the same bolts to secure the members in their raised position. At their forward ends the cables 13, 22 on each side of the vehicle are connected to two double-armed pivoted levers 14, 14<1>, Fig. 2, co-operating with a spring-controlled bolt 16, which abuts against a pair of pivoted pawls 19. Corresponding cables on the two sides of the vehicle are inter-connected so that when either set of pawls 19 is struck by a second vehicle all the cables 13, 22 are simultaneously operated and the entire window space protected. Additional cables 24 may be provided for permitting the driver to release the protective members bv movement of a hand or foot lever 23.
Patent GB-799092-A (GB)
Title: Improvements in or relating to dump semi-trailers
IPC: B60P1/08
Filed: 1956-11-15
Abstract: 799,092. Dump semi-trailers. SCHON-ROCK, E. A. Nov. 15, 1956, No. 34997/56. Class 108(1) A dump semi-trailer comprises a body 12 adapted to be moved between a substantially horizontal load-carrying position and an inclined dumping position, main lifting means 18 which interconnect the body with a structure disposed beneath said body, this structure forming part of the semi-trailer and part of its tractor 10; and auxiliary lifting means which are connected to said structure and engage the body when it is in the load-carrying position and which lift the body initially to an intermediate position, and the main lift means raising the body at least from the intermediate position. In this type of dump semi-trailer a pair of lift arms 18, pivotally connected to the trailer body at 22, will effect an upward tilting of the trailer body about a transverse trunnion 24, carried by the tandem axle assembly 16 when the latter is drawn towards the tractor. The upper fifth wheel 14 carries supports 32 for shafts 34 on which a U-shaped frame, lever 38, Fig. 5, rotates. A cross bar 40 joins the extremities of the lever, and at the other, end, journalled on axis 42 are pulleys 44 and 46 forming a bell crank arrangement. A roller 62 on the bar 40 co-operates with a cam surface 66, Fig. 4 of a block 64 secured to the under surface of the semi-trailer body, such that as the lever is pivoted about its fulcrum 34 the roller moving on the cam surface will produce an upward tilting of the body. The initial tensioning of the cable between pulleys 44, 46 and pulleys 28 at the rear causes this movement of the lever arms, thus aligning the axes of the fulcrum 34 and pulleys 44, 46 and 28. Further tensioning force applied to the cable will cause sheaves 28 to move toward pulleys 44 and 46 thus operating the lift arms 18 and causing the semi-trailer to move fully into the dump position. In a modified form of auxiliary lift means Fig. 7 and 8 (not shown) the lever arm connecting with a cam on the trailer body is rotated in a clockwise direction about its fulcrum and the roller thus partially lifts the body, the further operation of the lift arms being as previously set forth. A safety bracket assembly Figs. 10 to 12 (not shown), includes a guide flange extension concentric with the periphery of the upper fifth wheel assembly plate and secured to it by welding, and a stationary guide and retainer assembly, the retainer plate overlies the flange extension restraining it against tilting movement.
Patent GB-282785-A (GB)
Title: Improvements relating to copy-holders for typewriters
IPC: A47B21/04
Filed: 1927-01-20
Abstract: 282,785. Ges. f³r Elektrische Schreibmaschinen. Feb. 1, 1926, [Convention date]. Light reflected by trough-shaped reflectors.- In a copy-holding slope for typewriters, an elec. tric lamp 25 carried by a, cylindrical reflector 21 is detachable mounted on the slope 12 so that the reflector shields the lamp from the operator and throws light upwardly on to the copy and downwardly on to the typewriter. The lamp wire 26 may be held by clips 27 on the bracket 3 carrying the slope.
Patent GB-416318-A (GB)
Title: Process of manufacturing glazes or enamels
IPC: C03C1/00
Filed: 1932-12-10
Abstract: 416,318. Glasses, glazes, and enamels. GOLDSCHMIDT AKT.-GES., T., 18, Salkenbergsweg, Essen, Germany. Dec. 10, 1932, No. 35103. Void [Abridged as open to inspection under Sect. 91 of the Acts, June 26, 1933]. Application for addition to 383,186 and 384,538. [Class 56.] In the process described in the parent Specifications, for the production of glasses, glazes, majolica ware, enamels, and the like, using lead silicates or lead potassium silicates which have been produced by a melting process in place of red lead or litharge and potassium compounds, the said lead silicates have a predominantly acid character, the ratio Pbo : SiO2 being less than 1.
Patent GB-1236343-A (GB)
Title: Manufacture of devices for emission of insecticidal vapours
IPC: A01M1/20
Filed: 1969-07-11
Abstract: 1,236,343. Insecticide diffuser. J. R. GEIGY A.G. 11 July, 1969 [12 July, 1968], No. 35125/ 69. Heading A5G. An apparatus for emitting insecticidal vapours comprises a fibrous, absorbent mass 1 impregnated with a liquid, volatile, insecticidal phosphoric acid ester having on its major surfaces a thin layer 2 of polymeric material through which the vapour may slowly diffuse, the remaining surfaces being covered by an impermeable layer 3. The absorbent may comprise one or more pads of suitable material selected from non-sized paper, non-sized cellulose, wool felt, felt, card, carboard, glass fibre and non-woven fabric and modifications described include the provision of a more or less rigid "cage" of plastics material enclosing the basic device (see Figs. 6 and 7, not shown) and a surrounding impermeable plastics covering which is to be wholly or partly removed when the device is put into use (see Figs. 4 and 5, not shown).
Patent GB-301508-A (GB)
IPC: H02K7/065
Filed: 1928-11-29
Abstract: 301,508. Siemens Schuchertwerke Akt.-Ges. Dec. 2, 1927, [Convention date]. Special quantities, registering.-Resonantlycontrolled mechanism adapted to control the change-over gear or a multiple-tariff electric meter comprises a reed 20 which is set into vibration by current of a predetermined frequency. When the amplitude of vibration of the reed 20 exceeds a given amount it bears against the bent-over end 24 of a lever 9 which is normally held by a spring 13 so that its end 24 rests on a stop 23. The displacement of the lever 9 moves a pawl 10 so that it slides over the teeth of a ratchet wheel the return movement of the lever 9 under the influence of the spring 13 moving the pawl over the teeth of the wheel 7 and consequently rotating its shaft 6. The shaft may be connected by a crank, eccentric, or toothed wheels &c. with the rate-changing mechanism of a multiple-tariff meter. Return movement of the shaft 6 is prevented by a toothed wheel S and pawl 11. To prevent the reed being set into motion by external vibration it may be mounted with its associated mechanism on a layer 14 of flexible material such as cloth interposed between the base member 15 and the supporting bracket 2.
Patent GB-1261296-A (GB)
Title: Copying machine
Inventor: RITZERFELD GERHARD
IPC: G03B27/30
Filed: 1970-07-21
Abstract: 1,261,296. Contact printing apparatus. G. RITZERFELD. July 21, 1970 [July 29, 1969], No.35236/70. Heading G2A. A thermal copying machine comprises a housing with a halogen lamp 38 in an exposure section with blower 36, and a thermal copying section in which the negative intermediate sheet and the positive heat-sensitive sheet is passed in succession through a heating coil 12 station and an infrared illumination 52 station which are selectively energizable. The two types of heater each comprise driven rollers 12 and 14 against which the sheets are pressed by rollers 15, 18.