baber/WOPTO huggingface dataset:
Patent GB-1531083-A (GB)
Title: Valves
IPC: F16K21/04
Filed: 1976-02-09
Abstract: 1531083 Valves G LAFON 9 Feb 1976 [13 Feb 1975] 05034/76 Heading F2V A float 28, Fig. 1, operates a valve plate 7 Fig. 2, through a rotatable member (e.g. float, rod and lever 28, 35, 27) and a valve lever 16 attached to a pivot spindle 5 of the valve plate, the valve lever being pivoted by a follower 37, which is comprised in the rotatable member, the follower acting on an auxiliary lever 21. Lever 16 is raised by the float with rising liquid level until the valve plate is brought into the flow path and thereby abruptly brought to a part-closed position where a pin 19 engages the profile 32 of a cam 29. The abrupt movement causes a weight 22 to pivot the lever 21 so that follower 37 subsequently bears on outer profile 30 of the cam to pivot it about a pin 26 whereby pin 19 engages the cam profile 33 and the valve plate is made free to close. A valve, Fig. 4 (not shown), may be located upstream of the valve plate and be closed by the pressure wave from the closure thereof acting on a diaphragm (45). The valve plate 7 returns to its open position to drain the supply hose (42).
Patent GB-231145-A (GB)
Title: Stockless anchor
IPC: B63B21/34
Filed: 1925-02-24
Abstract: 231,145. Benjamin, L. March 19, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Addition to 230,437. Anchors.-In anchors constructed in accordance with the parent Specification the additional weight is movably fitted to the shank.
Patent GB-706957-A (GB)
Title: Hydraulic transmission, more particularly for the hydraulic brakes of motor vehicles
IPC: B60T11/10
Filed: 1952-02-26
Abstract: 706,957. Controlling vehicles. FIAT SOC PER AZIONI, and BALDWIN, P. S. Feb. 26, 1952 [Feb. 27, 1951], No. 5050/52. Class 79(5) [Also in Group XXXIV] A hydraulic brake system includes valve means interposed between the pressure side of the master cylinder piston and the brakes which on actuation by the vehicle clutch pedal are operative to hold the brakes applied until the clutch pedal is raised thus making it unnecessary for the driver to keep the brake pedal depressed in order to prevent the vehicle running back when starting on an incline. As shown in Fig. 1, the invention is applied to a master cylinder of the type in which the reservoir connection 11 is sealed off from the port 10 connected to the brake cylinders by the compression of a washer 27 between the end cap 29 and a sleeve 2. To lock the brakes on the sleeve 2 is urged to the left by the force of a cam 4, rotated with operation of the clutch, and acting through a member 3 and spring 34. The clutch operated valve may be contained within a housing interposed in the hydraulic conduit separate from the master cylinder as shown in Fig. 8.
Patent GB-1025141-A (GB)
Title: Improvements in or relating to a process for the oxidation of olefins
IPC: C07C45/34
Filed: 1962-02-09
Abstract: Saturated ketones are made by oxidizing olefines of the formula R1(R2)C=C(H)R3 wherein R1 is hydrogen or a C1- 6 and R2 and R3 are C1- 6 alkyl groups, separating the reaction mixture into a fraction consisting of unreacted olefin which is recycled to oxidation stage and a fraction containing oxycompounds, hydrogenating the oxycompounds, treating the hydrogenation products under acid conditions to give a fraction consisting of olefines which is recycled and a fraction comprising oxycompounds which is dehydrogenated to give a product which is essentially saturated ketones.  Suitable starting materials are 2-methylbutene - 2,2 - methylpentene - 2,2 - methylhexene - 2,2,3 - dimethylpentene - 2 or mixtures thereof.  The oxidation may be carried out with or without a catalyst in the liquid or vapour phase.  The unreacted olefin is conveniently separated from the crude oxidate, which contains unsaturated peroxides, ketones, aldehydes, alcohols and epoxides, by distillation under reduced pressure in the presence of an inert diluent or, alternatively, by subjecting the oxidate to selective hydrogenation to reduce unsaturated peroxides to unsaturated alcohols and distilling the mixture.  Before being returned to the oxidation stage the unreacted olefin may be treated under acid conditions in order to isomerize the mixture to one containing mainly olefins of the above formula rather than 1-olefins.  This isomerization may be carried out in the reaction zone in which the hydrogenation products, which are obtained from the oxycompounds by conventional means, are treated with a solid acid catalyst, e.g. alumina, or an aqueous acid, e.g. sulphuric, in order to convert epoxides to ketones, alcohols to olefins and olefins to predominantly olefins of the type used in the headstock.  Preferably the acid conditions are such that only tertiary alcohols are dehydrated to olefins.  The resulting products are separated into an olefin fraction for recycling and an oxycompound fraction containing mostly secondary alcohols and ketones which is subjected to known dehydration conditions to obtain a product containing a high proportion of ketones which can be isolated by distillation.  Any small amounts of close-boiling aldehydes present can be removed by oxidation or acetal formation followed by distillation.  The process is illustrated by reference to schematic flow drawings in which the feed is (1) 52% 4 - methylpentene - 2, 13% 2 - methylpentene-2, 30% 2-methylpentene-1 and 5% 4-methylpentene-1 and (2) 64.4% 4-methylpentene-2, 14.0% 2-methylpentene-2 and smaller amounts of other olefins and the product in both cases is a mixture of ethylisopropyl ketone and methylisobutyl ketone.
Patent GB-1365587-A (GB)
Title: Post chlorinated polyvinyl chloride compositions
IPC: C08F259/04
Filed: 1972-02-03
Abstract: 1365587 Vinyl chloride polymer compositions STAUFFER CHEMICAL CO 3 Fob 1972 [12 Feb 1971] 5101/72 Headings C3P and C3G A chlorinated vinyl chloride polymer is compounded with a processing aid prepared by polymerizing 10-60% by weight of the processing aid of methyl methacrylate optionally with comonomers in and/or on vinyl chloride polymer particles so that the processing aid has a particle size from 10 microns to a maximum such that no more than 15% are larger than 150 microns. The processing aid is prepared by polymerizing vinyl chloride in an aqueous medium containing a suspending agent such as methyl cellulose and a catalyst such as 2,21- azobis-isobutyronitrile. When this polymerisation is complete unreacted vinyl chloride is removed, a chain transfer agent, e.g. lauryl mercaptan, is added, followed by a mixture of methyl methacrylate with fresh catalyst and the mixture is heated to polymerize the methyl methacrylate. This processing aid may then be compounded with chlorinated polyvinyl chloride and additives including titanium dioxide, calcium stearate and an organo tin mercaptide stabilizer.
Patent GB-220574-A (GB)
Title: Improvements in slicing machines
IPC: B26D7/32
Filed: 1924-02-28
Abstract: 220,574. Berkel & Parnall's Slicing Machine Manufacturing Co., Ltd., (U.S. Slicing Machine Co.). Feb. 28, 1924. Cutting slices in succession.-In a machine for slicing bread and other substances of the kind including a stacker comprising a conveyer for receiving slices from the knife and an oscillating discharge fly for discharging slices from the conveyer, such as described in Specification 180,010, the fly is positively controlled by a single rotatable cam during both its discharge or forward movements and its reverse movements. The machine includes a meat carriage 20 which is reciprocated by a rod 23, Fig. 2, and crank, not shown, from the main driving shaft 16, a disc knife 58, and any suitable means for feeding the meat forward after each slice is cut. A conveyer arranged to receive the slices as they are cut, comprises fingers 59 carried bv vertical bars 60 extending between upper and lower chain links 61 the pivot pins of which carry rollers 64 running in tracks 66, 68. The conveyer is reciprocated by the motion of the carriage 20 through mechanism including a lever 87 pivoted to the carriage and slidingly connected at its upper end to a bar 97 which joins the endmost chain links. The lower end of the lever 87 carries a roll 98 which runs in a guideway 99 of the shape shown in Fig. 6. The engagement of the roll with the upper surface of the guideway constrains the lever 87, in its travel with the table 20, to move from the position shown in dotted lines to that shown in full lines, causing an accelerated forward movement of the convever when it has received a slice. On return movement of the table the roll is held, by friction means 103,105, in contact with the lower surface of the guideway, preventing too rapid reversal of the movement of the conveyer. A curved and slotted guide plate 81 is arranged adjacent to the knife to press the slide firmly on to the fingers 59. The forward end of the conveyer may be rocked slightly towards or away from the knife and the guide plate 81 is similarly adjustable. The discharge fly comprises a series of arcuate fingers 49 held upon a notched arm 48 by a cover plate 55. The arm 48 is mounted upon a rock-shaft 43 which is surrounded by a tension spring 50 normally holding the fly in receiving position. The shaft 43 is rocked by a rod 39, Fig. 5, which is pivoted at one end to an arm 42 fast on the shaft 43 and is pivoted at the other end to an arm of a lever 34 the other arm of which carries a roll 33 running in a cam track 32 on a cam 39. The cam is fixed to a shaft 25 which is rotated by bevel-gearing 27, 28 from the main shaft 16. The rod 39 is adjustable in length by means of a turn-buckle 53. In operation a slice cut by the knife 58 is received by the fingers 59 and conveyed to the fly, which is then rocked through the cam 29 to deposit the slice on a receiving table 106. This table is' removably clamped upon a spider 107 which also carries clamps by which a sheet of paper may be secured over the table. The support 110 for the spider is connected by a spring catch to a crumb tray 114.
Patent GB-436707-A (GB)
Title: Improvements in and relating to marine propeller shafts
IPC: B63H23/34
Filed: 1935-02-23
Abstract: 436,707. Screw propeller shafting. BOTTA, A., and PURICELLI, C., 50, Via Isonzo, Milan, Italy. Feb. 23, 1935, No. 5203. [Class 114] An inboard motor is connected with a propeller beneath the boat by a rearwardly extending shaft inclined at a small angle and a single pair of bevel gears. The driving shaft 5 and motor are inclined slightly to the horizontal and the shaft carries a splined bevel gear 7 which is an engagement with a bevel gear 8 upon the propeller shaft 6. The bevels are formed with spherical surfaces and are supported by bushes 13, 14, in a common sleeve. The stern bracket supports a streamline casing 18.
Patent GB-234197-A (GB)
Title: Improvements in or relating to the crystallisation and drying of soluble substances
IPC: B01D9/00
Filed: 1924-02-29
Abstract: 234,197. Millar, J. T. Feb. 29, 1924. Crystallizing; spray evaporators. - Crystallized salts &c. are prepared by spraying a heated solution into a heated chamber in which a quantity of crystals of the desired type have already been placed and in which is an agitator which turns over the crystals as they form in the manner of a ploughshare. In the apparatus shown the liquid, heated in a jacketed vessel 10, passes through a flexible pipe to a moving or stationary nozzle 13 opening into a vessel made in two separable portions 16, 17. The lower portion 16 is provided with a steam jacket and the upper 17 carries an exhaust pipe 24 and a stirrer shaft 18.
Patent GB-608327-A (GB)
Title: Improvements in or relating to adjustable reclining chairs or like articles of furniture
IPC: A47C1/0355
Filed: 1946-02-20
Abstract: 608,327. Adjustable seats. LORENZ, A. Feb. 20, 1946, Nos. 5261 and 5262. Convention dates, March 1, 1945, and Jan. 30, 1946. [Class 52(ii)] A chair or the like adjustable into a reclining position has a back 12 and seat 28 both pivoted at 14 on a base or support 10, a downward extension on the back being connected by a link 22 to a link 18 swing- ing on a pivot 20 on the base 10, a further link 30 connecting the seat 28 with the link 18 to raise the seat as the back moves rearwardly. A slotted bar 48 pivoted to the seat can be clamped to the base 10 by a clamp nut to hold the parts in adjusted position. In modified forms of the structure provision is made for altering the lengths of the links and a leg-rest may be pivoted to the front of the seat and operated by a link from a lower extension on the seat back.
Patent GB-415656-A (GB)
Title: Improved processes for preserving roasted or roasted and ground coffee
IPC: A23F5/10
Filed: 1934-02-17
Abstract: A process for preserving roasted and roasted and ground coffee in a permanent state of freshness consists in roasting the coffee in an atmosphere of neutral gas, collecting the roasted coffee in a hermetically sealed chamber still in the neutral gas atmosphere and allowing the coffee to cool in this atmosphere so that it becomes impregnated with the neutral gas.  The cooling is effected by an inert gas treated with water vapour.
Patent GB-490687-A (GB)
Title: The manufacture of objects resistant to heat and water for domestic, sanitary and the like application
IPC: C08G12/30
Filed: 1937-02-22
Abstract: Articles resistant to heat and water for domestic, sanitary and like application, such as caps, bowls, cans, flower-vases, soap boxes, false teeth, table coatings and furniture, comprise a shaped body of a resin obtained by condensing a compound containing a five-or six-membered heterocyclic ring, in which the group -N=C-NH-X (X being H or NH2) is present at least twice, with aliphatic aldehydes containing not more than four carbon atoms.  Suitable compounds are melamine, ammeline, benzoguanamine, diaminoquinazoline, cyanuric trihydrazide and guanazole.  Specifications 455,008 and 487,253 are referred to.
Patent GB-618585-A (GB)
Title: Improvements in electric heaters for windscreens and windows
IPC: H05B3/84
Filed: 1945-03-02
Abstract: 618,585. Electric heater for windscreens. HOPKINS, C. R. March 2, 1945, No. 5314. [Class 39 (iii)] For heating windscreens and windows, a closecoiled, ribbon-like resistance 3 extends within and from end to end of, a long narrow casing having apertures or slots through which heat is directed slantingly upward along the surface, air being drawn in from below and passing upward through the slot or apertures. As shown, the resistance 3 is supported within the casing by refractory washers 6. The casing may be constituted of engaging slotted tubular members 1, 2, of metal or possibly plastic. The resistance may comprise a number of lengths electrically connected, and the casing may be of angular or polygonal crosssection and may be part of the windscreen frame.
Patent GB-487521-A (GB)
Title: Improvements in or relating to photographic cameras having base telemeters
IPC: G03B13/20
Filed: 1937-02-22
Abstract: 487,521. Range-finders for photographic cameras. ZEISS IKON AKT.-GES. Feb. 22, 1937. No. 5339 .Convention date, Feb. 22, 1936. [Class 98 (i)] The iris diaphragm required for a particular depth of focus of a camera objective coupled to a telemeter is determined by ray deflectionmeans independent of the adjustment of the camera objective. The additional means may be a wedge comprising a positive lens 4 and a negative lens 5, the former being connected by gearing 6, 7, to an adjustment wheel 8. The aperture values 10 are recorded on the wheel 8. A spring 9 returns the lens 4 to normal position after each operation. In a mirror-defecting telemeter system, the semi-transparent mirror which is normally stationary is pivoted and connected to the adjustment wheel through worm and teeth gearing so that the desirable diaphragm aperture is indicated for any particular depth of focus. A spiral spring returns the mirror to normal position.
Patent GB-1245264-A (GB)
Title: New or improved means for supporting stairways from tubular metal scaffolding
Inventor: ROGERS WILLIAM ALFRED
IPC: F16B2/10
Filed: 1968-02-02
Abstract: 1,245,264. Clamps; pivots. TUBECLAMPS Ltd. 20 Jan., 1969 [2 Feb., 1968], No. 5341/ 68. Headings E2B and E2F. Means for use in supporting the treads of stairways from tubular metal stringers of a tubular metal scaffolding which stringers extend at an inclination to the horizontal corresponding to the angle of slope of the stairway comprises a two jaw clamp 9 adapted to be secured in releasable clamping engagement with one of the stringers, one of the jaws 'being provided with a bearing part 15 on which is supported, for pivotal movement about a substantially horizontal axis extending in use parallel to the direction of width of the stringers, one 18 of two flanges 18, 22 of an angle bracket 19, the other flange 22 of which bracket is adapted to be secured to the stair tread for the purpose of supporting the same in horizontal position irrespective of variations within predetermined limits of the angle of slope of the stringer to the horizontal and means 21 for securing the pivotally connected flange of the bracket in its adjusted pivotal position relative to the two jaw clamp from which it is supported. In the construction shown the bearing part is provided with an arcuate slot 20 through which the means 21 which, as shown, is a bolt passes to be engaged by a nut. The flange 22 of the bracket is provided with holes through which screws are passed which engage the tread.
Patent GB-455433-A (GB)
Title: Improvements in or relating to hydraulic actuating apparatus
IPC: B66B1/04
Filed: 1935-02-20
Abstract: 455,433. Hydraulic transmission of power. VICKERS, Inc., 1400, Oakman Boulevard, Detroit, Michigan, U.S.A.-(Assignees of Vickers, H. F. ; 1400, Oakman Boulevard, Detroit, Michigan, U.S.A.) Feb. 20, 1935, No. 5402. Convention date, Oct. 13, 1934. [Class 69 (ii)] In a hydraulic actuating system, a pressure relief and byepass unit is positioned between the source of supply and the working cylinder, the byepass valve being opened at the end of the working stroke. In the form shown, a pump 2 which may be constructed as in Specification 407,642, [Group XXVI], delivers liquid to the chamber 4 of a valve constructed as in Specification 393,761. When the valve 32 is off its seat 33, the liquid returns to the supply reservoir 1, but when the valve is closed it passes to the chamber 6 of a valve 7, and thence when the valve and its handle 28 are in the position shown through a pipe 10 to the upper end of a cylinder 12 and depresses the piston 13, exhaust liquid passing through pipes 14, 16. When the piston reaches its lowest position, it depresses a valve 19 to place a pipe 23 and passage 22 into communication, and a latch valve 24 engages with and locks the piston. Pressure in a chamber 30 is relieved through a pipe 43, valve 39, pipe 23, passages 22, 27, and pipes 14, 16, so that the pressure in the chamber 4 opens the valve 32. When the piston 13 is to be raised, the valve handle 28 is moved to the dotted line position ; the chamber 30 is no longer open to atmospheric pressure, the valve 32 is closed by its spring 35, and liquid then passes from the chamber 4 through pipes 5, 14 to the lower end of the cylinder 12, and also through pipe 10 to the upper end ; the latch 24 is forced back against the action of a spring 26 and the piston ascends until a groove 48 in the piston-rod places pipes 49, 50 into communication. Pressure in the chamber 30 is then relieved through a pipe 43, valve 39, and pipes 49, 50, 16 and the valve 32 opens. The valves 7, 39 are simultaneously operated, and the movement of the piston 13 is cushioned at both ends of the stroke by tapered portions entering reduced portions of the cylinder.
Patent GB-730545-A (GB)
Title: Improvements in or relating to auxiliary starting carburetters for internal combustion engines
IPC: F02M1/04
Filed: 1952-02-29
Abstract: 730,545. Carburetters. SOLEX. Feb. 29, 1952 [March 3. 1951], No. 5404/52. Class 7(3). An auxiliary starting carburetter is provided with a bimetallic strip housed in a conduit the effective cross section of which exercises an influence on the richness of the mixture delivered by the auxiliary carburetter this bimetallic strip being suspended by its upper part and being so shaped that its deformation under the effect of temperature variations produces a modification of the effective cross section of the conduit without requiring the use of any auxiliary parts. As shown a U-shaped bimetallic strip 41 is supported in the well or conduit 10 of an auxiliary carburetter so that when the temperature is low the lower ends of the strip move towards the sides of the well so as to obstruct it. Increased suction tends to draw the limbs of the strip away from the wall of the well again. The well may be of square or rectangular cross-section. A bimetallic strip having but one branch may be used. Specification 708,526 is referred to.
Patent GB-706113-A (GB)
Title: Improved process for the production of metals
Inventor: HESSENBERG WILFRED CECIL FREDE
IPC: C23C2/38
Filed: 1951-03-07
Abstract: 706,113. Coating with metals BRITISH IRON & STEEL RESEARCH ASSOCIATION. March 7, 1952 [March 7, 1951], No. 5524/51. Class 82 (2) [Also in Group XXII] A method of producing metal in elongated form comprises feeding a core of metal, for example, a strip, through a bath of molten metal of the same composition so that there is a substantial deposit of metal upon the core and thereafter passing the coated core through thickness reducing means such as a rolling mill. For the production of steel strip, the core may comprise steel strip # inch thick, freshly descaled and cleaned with an acid. This is passed through a bath 17 of molten steel at 1600‹C. an immersion time of 0.5 second giving a resultant strip “ inch thick which is passed through a rolling mill 23. The strip is fed through the bath in the form of a loop between two sets of linked feed rolls 13, 14. The bath has a weir 17, gas cover 17c and sealing means 17d. The coated strip may be reduced to its original thickness by the rolling mill and part of it may be returned to the bath for a further coating operation. It is stated that by this'means solid metal can be produced from the melt at a rate much higher than by known methods of continuous casting. The method may be applied to wire, tube or other continuous metal forms.
Patent GB-446642-A (GB)
Title: Improvements in or relating to lawn sprinklers and the like
IPC: B05B3/06
Filed: 1936-02-25
Abstract: 446,642. Rotary sprinklers. ROSENTHAL, S., 55, Aeussere Bayreutherstrasse, Nuremburg, Germany. Feb. 25, 1936, No. 5611. Convention date, March 4, 1935. [Class 69 (iii)] In rotary lawn-sprinklers of the kind in which reactionless distributing nozzles d, e are rotated about a vertical axis by subsidiary nozzles f, the subsidiary nozzles are rotatable about the axes of the distributing pipes b, c in order to vary the speed of rotation of the sprinkler.