baber/WOPTO huggingface dataset:
Patent GB-1237278-A (GB)
Title: Herbicidal ester emulsions
Inventor: MECKLENBORG KENNETH THOMAS
IPC: C07C69/26
Filed: 1968-07-24
Abstract: 1,237,278. Herbicidal ester emulsions. UNILEVER-EMERY N.V. 24 July, 1968 [24 July, 1967], No. 35304/68. Heading A5E. A herbicidal composition comprises an emulsion containing water, an emulsifier and an aliphatic ester having the formula wherein R is a straight chain aliphatic group containing 3 to 21 C and R' is a saturated aliphatic (including cycloaliphatic) containing I to 10 C. Typical esters are methyl pelargonate, methyl caprate, n-propyl pelargonate and the methyl ester of a mixture of saturated and unsaturated C 5  to C 13  aliphatic monocarboxylic acids. The emulsifier is suitably a nonionic material such as polyoxyalkylated sorbitan ester.
Patent GB-341623-A (GB)
Title: Improvements in apparatus for table ball games
IPC: A63F7/36
Filed: 1929-11-19
Abstract: 341,623. Table games. ILES, A. S., Tyburn Road, Gravelly Hill, Birmingham. Nov. 19, 1929, No. 35320. [Class 132 (ii).] In a games apparatus of the type in which a ball is propelled over the surface of a table by key-actuated flaps, the connections between the finger keys and the flaps are flexible ones, and the flaps constitute the entire playing surface and ara arranged in pairs, the flaps of each pair tilting in opposite directions. The flaps d are hinged at e to the framework a or to partitions c and are connected to keys g by flexible means k. The flaps rest on stops f and have other stops l which limit their tilting movement. The two central flaps have a raised part p and a recess q to retain the ball before play commences. Longitudinally adjacent flaps swing in opposite directions and are operated from opposite ends of the table. The apparatus is covered with a net m having openings o for goals and supported on members n each bent into the form of a semicircle.
Patent GB-335804-A (GB)
Title: Improvements in and relating to submarine electric cables with pressure protecting coverings
IPC: H01B7/14
Filed: 1929-11-19
Abstract: 335,804. Felten & Guilleaume Carlswerk Akt.-Ges. Jan. 23, 1929, [Convention date]. Armouring cables. - A pressure-protecting covering for a deep-sea cable is formed of profile wires and is covered by a watertight sheathing of guttapercha, gutta-gentzch, or washed rubber. In order to prevent the sheathing from being pressed into gaps in the protecting covering, a thin steel band or layer of lead or other metal is applied over the protecting covering under the watertight sheathing.
Patent GB-1392440-A (GB)
Title: Variable-ratio frictional drive gears
IPC: F16H61/662
Filed: 1971-07-27
Abstract: 1392440 Variable speed gear ROTAX Ltd 13 July 1972 [27 July 1971] 35323/71 Heading F2D In a speed and load responsive toric disc friction drive of a constant speed alternator, wherein the drive ratio is varied by processional tilt of the roller axes produced by tangential movement of roller carriages mounted on a common roller support 27, turnable about the axis of the gear, the roller support is held against torque reaction by a piston valve 28 subject to the same pressure as that fed to an output driven centrifugal governor 38, so that any increase (or decrease) in load will close (or open) an exhaust port 31 in a stationary cylinder, which increases (or decreases) the input and output pressures of the governor 38, the output 41 of which is fed to roller-shift cylinders (not shown), one on one end of each roller tilt axis and universally connected to the arms of the support 27, the other end of the tilt axis being universally guided thereon. The gear, Fig. 1 (not shown), comprises a central double disc (21), gear driven by a parallel input shaft, and two outer discs, one (16) fast on an output shaft (10, 12), the other (18) rotating therewith and loaded axially, for traction, by the same hydraulic pressure as that supplied to the shift cylinders and acting in a centrifugally balanced chamber (24).
Patent GB-394376-A (GB)
Title: Improvements in or relating to the manufacture of addition products of olefines
IPC: C07C29/04
Filed: 1931-12-22
Abstract: Addition products of olefines such as alcohols, ethers and esters are produced from olefines and water or steam in the presence of vapours of organic acids such as acetic or trichloracetic acid.  The temperature may be 150-550 DEG  C. and the pressure 5-100 atmospheres.  The reaction may be effected in presence of catalysts which promote hydration reactions such as oxyacids of phosphorus or salts thereof or zinc chloride, and/or contact or filling materials such as pumice and kieselguhr.  For the production of alcohols less than two volumes of olefine to one of steam, and for ethers a considerable excess of olefine such as two to three volumes of olefine to one of steam may be used.  Some of the alcohol may combine with the organic acid to form an ester, which may subsequently be hydrolysed.  The olefine may be caused to combine directly with the acid by using little or no steam.  The products may be separated by fractional condensation with or without the use of an entraining liquid.  The production of isopropyl alcohol from propylene and steam is mentioned.  Mixtures of olefines such as mixtures of ethylene with propylene or butylene may be used as starting materials.  In an example, a mixture of 3 volumes ethylene, 2 volumes steam and 1 volume of acetic acid vapour is passed repeatedly through a tube containing pumice at 450 DEG  C. and 20 atmospheres pressure.  The alcohol and/or ethyl acetate are obtained by fractional separation.
Patent GB-1113283-A (GB)
Title: Improvements in or relating to the winding of static electrical induction apparatus
IPC: H01F29/02
Filed: 1965-08-18
Abstract: 1,113,283. Transformers. SKODA OBOROVY PODNIK. 18 Aug., 1965 [24 Aug., 1964], No. 35398/65. Heading HIT. In an interleaved double disc coil winding tapping connections are made both to the start and finish conductors 1 and 18 of the double disc coils and to one or more of the interconnections between intermediate turns, such as 6, 7 or 12, 13, of the coils of each pair. The numbers of turns between successive tapping points may be unequal (Fig. 3, not shown).
Patent GB-205408-A (GB)
Title: Improvements in and relating to presses for tennis rackets and the like
IPC: A63B60/44
Filed: 1922-12-29
Abstract: 205,408. Nicklin, A. E. Dec. 29, 1922. Racket presses.-Relates to a press for tennis and like rackets of the type in which two frames are hinged together at one end and provided with clamping means at the other, and consists in forming the hinging means from a rod 4 rotatably engaging the frame 1 and having bent ends 5, 6 which pass through and are secured to the frame 2 by nuts 8, 9, and in constructing the clamping means from a connection piece 11 on the frame 2 carrying two cam levers 14 which can be moved into position over slots 3 in the frame 1. The cam levers 14 are pivoted to nuts 13 on the screwed ends 12 of the connection piece 11, and after adjustment are locked in position by nuts 15. When the frame 1 is raised a projection 17 engages the end of the rachet and pushes it clear.
Patent GB-1505282-A (GB)
Title: Print head and plastic bearings therefor
IPC: B41J2/265
Filed: 1975-08-28
Abstract: 1505282 Selective printing CENTRONICS DATA COMPUTER CORP 28 Aug 1975 [10 Sept 1974] 35507/75 Heading B6F A needle printer head assembly is characterized by a bearing 40, at the punt end of the needles 19, made of a self-lubricating plastic which is resistant to wear by the needles 19. Preferred materials are thermoplastic acetal resin, polycarbonate, ethyl cellulose thermoplastic, PTFE, thermoplastic nylon and thermoplastic polyester, which include a dry lubricant, e.g. glass, molybdenum disulphide. As shown the bearing 40 is attached by a fastener 51 to a slot 35 in the assembly 11. The solenoid side of the bearing is tapered and the apertures for the needles on that side may be tapered outwards.
Patent GB-496528-A (GB)
Title: Improvements in and relating to magnetic dust cores for high frequency coils
IPC: H01F17/04
Filed: 1937-12-23
Abstract: 496,528. Inductances. MICHAELIS, E. Dec. 23, 1937, No. 35600. Convention date, Dec. 24, 1936. [Class 38 (ii)] In a magnetic dust core for high-frequency coils of the kind comprising a stationary and a movable core both mounted inside the coil windings, the stationary core 1, Fig. 1, and movable core 2 are both hollow and form an annular cylindrical gap between them, and both are mounted concentrically with respect to a spindle 3, the movable core 2 being secured to a member 4 which is in screw-threaded engagement with the spindle, so that the cores may be relatively displaced one within the other, the cross-section of the gap between the cores remaining constant. The movable core may be so shaped that the self-inductance of the coil is approximately proportional to the axial displacement of the movable core. Fig. 2 shows such an arrangement wherein the movable core 2 is of mushroom shape with a resilient slotted disc 5 secured in its wider end to engage the spindle 3 as described in Specification 495,605.
Patent GB-1267853-A (GB)
Title: Process for the manufacture of alkali metal phosphates of low vanadium content
Inventor: KERN WINFRIED
IPC: C01B25/39
Filed: 1969-07-16
Abstract: 1,267,853. Alkali metal phosphates. KNAPSACK A.G. 16 July, 1969, No. 35767/69. Heading C1A. In a process of making alkali metal phosphates by neutralizing crude vanadium-containing wetprocess phosphoric acids, containing up to 1000 p.p.m. of vanadium, based on P 2 O 5 , at least 0À3 g./100 g. dissolved P 2 O 5  of the Fe(III) contained in the acids is reduced to Fe(II) by alkali metal and/or alkaline earth metal sulphide. The acids are then neutralized by an alkali metal hydroxide or carbonate to a pH above 4À5, precipitated impurities, e.g. Fe, Al, and Ca phosphates containing vanadium are filtered off, and alkali metal phosphates are separated from the filtrate. The resulting phosphate contains less than 10 p.p.m. (based on P 2 O 5 ) of vanadium. A preferred reducing agent is barium sulphide, which precipitates sulphate and arsenic in addition to reducing trivalent iron. The reducing agents are preferably used in an amount more than 5 times that stoichiometrically required to reduce the Fe<SP>3+</SP>. Alkali metal phosphates containing less than 2 p.p.m. vanadium are obtainable if the amount of Fe(III) reduced is more than 0À8 g./100 g. P 2 O 5 . Sodium phosphate is exemplified.
Patent GB-1120564-A (GB)
Title: Apparatus for producing short-duration sonic or ultra-sonic pulses
IPC: G01V1/135
Filed: 1966-08-10
Abstract: 1,120,564. Diaphragm vibrators. R. POHLMAN. 10 Aug., 1966 [11 Aug., 1965; 15 July, 1966], No. 35772/66. Heading G5J. A sonic or ultrasonic pulse generator comprises a bowed diaphragm which in response to applied fluid pressure snaps over into a position in which it is bowed in the other direction. The diaphragm oscillates rapidly in this new position producing the pulses. As shown air pressure is applied to the rear of the diaphragm 3 by a piston 5 reciprocated pneumatically under the control of an electrically controlled valve 10. The diaphragm may be sucked back into its original configuration by the return stroke of the piston or the diaphragm which is made ,of steel, may be stressed so as to return to this configuration when the pressure is released. A disc 19 having an aperture 20 providing a constriction which concentrates the pulse output of the diaphragm may be mounted in front on the diaphragm as shown. In a modification (Fig. 2, not shown) air is fed directly to the rear of the diaphragm by an electrically controlled valve which switches the supply via a suction pump to return the diaphragm.
Patent GB-791822-A (GB)
Title: Improvements in or relating to duplicating machines
Inventor: GATES ALBERT GEORGE RONALD
IPC: B41L13/04
Filed: 1955-12-13
Abstract: 791,822. Copying documents. GESTETNER, Ltd. Oct. 23, 1956 [Dec. 13, 1955], No. 35818/55. Class 100(2) A duplicating machine comprises a pressure roller 1 carried by a rotatably mounted support 9, a torsion bar 11, one of whose ends is secured to the support at 12, and means for periodically oscillating the other end of the torsion bar, the arrangement being such that movement of the oscillated end of the bar 11 in one direction brings the pressure roller into contact with a cylinder 2 of the machine and these after subjects the torsion bar to torsion whereby the pressure roller 1 exerts printing pressure, and movement of the oscilated end of bar 11 in the opposite direction releases the printing pressure and moves the roller 1 away from the cylinder 2. The roller 1 is carried by a frame 5 secured to the supporting sleeve 9 which is rotatably mounted in the machine frame 10. The torsion bar 11 is located within the sleeve 9, the oscillated end of the bar 11 being pinned at 13 to a bush 14 welded to a plate 15. The plate 15 is secured to a lever 16 by a bolt 17 having an eccentric projection 18 adapted to bear against the side of an elongated hole 19 in the plate 15. The lever 16 is formed with a groove 20 which receives a pin 21 on a bracket 22, the latter being welded to a bush 23 keyed to the sleeve 9. The lever 16 is provided with a roller 24 which co-operates with a curved end 26 of a slide 27 reciprocated by means of a cam 31 and cam follower 20 provided on the slide 27. Initial torsion is applied to the bar 11 by adjusting the eccentric 18. In operation the pressure roller 1 contacts the cylinder 2 just before the slide 27 has deached its furthest position in the direction of the arrow 33, final movement of the slide being effective to apply printing pressure between the roller 13 and cylinder 2.
Patent GB-315654-A (GB)
Title: Improvements in hay racks and the like
IPC: A01K1/10
Filed: 1928-12-05
Abstract: 315,654. Sumner, H. C. Dec. 5, 1928. Feeding-appliances for animals. - Hay racks embody a number of spaced fodder carrying bars which are displaceable either independently or in groups from their normal position by an animal during the process of withdrawing the fodder. The rack is composed of rigid end frames 1 of triangular shape having the apex of the triangle lowermost. These frames are connected by rails 2, 3 at the bottom and top of the frame respectively. The rails 2, 3 are connected by bars 4 the upper ends of which pass through holes in the rails 3 and the lower ends of which are free to move in slots 5 in the rails 2. The normal position of the bars is shown in Fig. 3, and the dotted line shows the position when displaced by the animal in withdrawing the food. The bar returns to its normal position by gravity when the nose of the animal is withdrawn. The bars in the normal position are so spaced that it is difficult or impossible for food to be withdrawn by the animal until the bars have been displaced. The bars are secured at the tcp by pins 7 and can be completely removed if desired.
Patent GB-393215-A (GB)
Title: Tension spring upholstery for furniture, motor cars, and the like
IPC: A47C23/053
Filed: 1931-12-03
Abstract: 393,215. Spring upholstery. MANNING, G., 25, Bakewell Road, Lostock, Stretford, Manchester. Dec. 3, 1931, No. 36167/32. Divided on 389,191. [Class 52 (iv).] A seat-back springing consists of a series of bearer bars F suspended at their upper ends from a rail and connected at their lower ends by tension springs A to a rail on a forwardly extending part of a frame N, flexible connections H being provided to check side sway of the bearer bars. The device may, as shown, be made as a detachable unit or in a modified form, the lower angle part of the frame N may be secured to the chair frame and the bearer bars suspended from the top rail of the said frame.
Patent GB-401513-A (GB)
Title: Apparatus for forming moulded or embossed articles of plastic material
IPC: A21C11/16
Filed: 1932-12-21
Abstract: 401,513. Moulding dough &c. KREMMLING, A., Hamersleben, near Oschersleben, Germany. Dec. 21, 1932, No. 36246. [Class 87 (ii).] A machine for forming embossed articles of dough, marzipan &c., of the type in which a die is raised into co-operation with an extrusion press to emboss the material and is then lowered to release it, has means for severing the extruded end whereby it falls onto the mould element or die and means for rotating or inverting the mould element to deliver the severed portion face upwards. Material is forced by feed-rolls 30a from a hopper 30 through an extrusion nozzle 3. The hopper may oscillate about the axis of one of the feed-rolls and the nozzle 3 is adapted to yield to the embossing element 9a which has two or more mould faces 9b and is carried on a table 4. The table 4 is oscillated by the cam 6a to bring the mould face 9b into cooperation with the nozzle 3 and the element 9a is intermittently rotated by a pawl-andratchet mechanism from the crank 17 to deliver the moulded articles which have been severed by the knife 13 on to the table 4. A conveyer band 26 retains the articles in the mould elements during inversion and is spaced from the element 9a by distance strips 29a. In a modification, Fig. 7, the embossing element comprises a plate 39 adapted to be reciprocated along a track 41 by a crank rod 42. During reciprocation the element 39 is rotated by a rack and pinion 45 to deliver the article. In a further modification, Fig. 13, the mould element 50 is fixed and the moulded pieces are pushed by a brush 65 on to a delivery conveyer 56 having a roughened surface or small projections. A belt 61 may cooperate with the conveyer 56 and a brush 71 may apply yolk of egg to the conveyer 56 to make it sticky. The extrusion dies 3 may have honey-combed openings as shown in Fig. 11.
Patent GB-337241-A (GB)
Title: Improvements in internal combustion engines of the two-stroke type
IPC: F01L5/08
Filed: 1929-11-26
Abstract: 337,241. Tartrais, E. H. Nov. 26, 1928, [Convention date]. Starting.-In an engine having a sleeve valve 1 rotated on the cylinder head and also moved up and down by the engagement of rollers 12, Fig. 6, on the valves with a fixed cam groove. the cam 11 may be adjusted angularly by a gear wheel engaging a toothed periphery of the cam, and the adjustment may be such as to relieve compression for starting. Fig. 24 shows a modification in which the cam groove is formed between upper and lower cam parts 56, 57 which are separately adjustable angularly by gear wheels 70, 71 formed on hollow shafts 85, 86 surrounding the driving-shaft 78 of the valve gear. These shafts 85, 86 are provided at their lower ends with gear segments 87, 88 engaging gears 89, 90 which are coaxial with the crank shaft and adjusted by sectors 91, 92 and levers 93, 94. The gears 89, 90 engage the segments 87, 88 for each cylinder of a radial-cylinder engine. Compressed air for starting may be supplied at 96, the normal air supply being closed by an automatic valve 95, which opens when a certain speed is obtained.
Patent GB-1084855-A (GB)
Title: Organosilicon isocyanate compounds and process for preparing same
IPC: C07F7/08
Filed: 1964-09-04
Abstract: Silanes (A) of the formula <FORM:1084855/C3/1> siloxane homopolymers (B) of the unit formula <FORM:1084855/C3/2> and copolymers (C) composed of units of (B) and units of the formula <FORM:1084855/C3/3> wherein R is a divalent hydrocarbon (h.c.) radical, R1 is a monovalent h.c. radical, R11 is H or R1, X is H, Cl or F atom or a hydrocarbonoxy radical, a is 1, 2 or 3, b is 0, 1 or 2, a + b is 1, 2 or 3 and c is 0, 1, 2 or 3, can be made by contacting at reaction temperatures phosgene with the corresponding organosilicon compound containing 1, 2 or 3 aminohydrocarbon radicals, the possible reaction being:-  <FORM:1084855/C3/4> The reaction is preferably effected in an inert solvent, preferably a high boiling halo-hydrocarbon, the initial contacting of the aminoorganosilicon compound with COCl2 being at low temperatures with gradual increase in temperature as the reaction progresses.  In a typical Example (1) a toluene solution of <FORM:1084855/C3/5> was slowly added over a period of 20 minutes to a mixture of toluene and COCl2 in a glass reactor cooled to - 20 DEG C., and the resulting mixture was heated to 110 DEG  C. under a nitrogen atmosphere and subsequently freed of toluene and distilled to yield <FORM:1084855/C3/6> In Example (5) d -aminopropyltriethoxy silane was reacted with COCl2 to yield d -isocyanatopropylethoxydichlorosilane, which was then refluxed with thionyl chloride and triphenylphosphine to the corresponding trichlorosilane, and this silane was heated with sodiumfluorosilicate to yield d -isocyanatopropyltrifluorosilane.  Uses.-As hydraulic fluids, coating resins, elastomers, and as sizing materials for paper and textile and glass fibres.
Patent GB-812417-A (GB)
Title: Improvements in or relating to treatment cabinets in which the temperature and/or humidity of the air present in the cabinet may be controlled
IPC: F26B9/06
Filed: 1955-12-19
Abstract: 812,417. Air conditioning and air-conditioned enclosures. WEYCO (EQUIPMENT) Ltd., and HOBSON, L. Nov. 22, 1956 [Dec. 19, 1955], No. 36336/55. Class 137 [Also in Groups XII and XIII] A cabinet for treating articles with air conditioned as regards temperature and/ or humidity comprises inner and outer shells 1 and 2 spaced apart to provide an air passage for circulating air as shown, the inner shell having shelves 6 and 7 for supporting the articles to be treated and dividing the chamber therein into a series of compartments each of which has an air inlet and outlet 12 and 14 respectively, baffles 13 being provided adjacent the air inlets 12 to equalize the amount of air passing through each compartment. A fan 8, a device 10 for atomizing water with air from a pipe 11, a heater 9 are arranged in the base of the cabinet and air vents 15 and 16 control the amount of outside air drawn into and expelled from the cabinet. The air flow to the pipe 11 and thereby the humidity within the cabinet may be controlled by means of a magnetic valve operated by the wet bulb of a wet- and dry-bulb thermometer. The Provisional Specification states that the air in the cabinet may be treated with a drying agent.