baber/WOPTO huggingface dataset:
Patent GB-1409859-A (GB)
Title: Suction and discharge apparatus intended for sucking up and discharging two fluids without mixing thereof
IPC: F04B43/073
Filed: 1973-10-17
Abstract: 1409859 Reciprocating pumps A R CHANCHOLLE and J M F PERISSE 17 Oct 1973 [18 Oct 1972 26 April 1973] 48392/73 Heading F1A [Also in Division A5] Apparatus for sucking up and discharging two fluids without mixing them, e.g. for use in surgical operations to draw off secretions and introduce physiological serum, comprises a suction nozzle 1, Fig.1, connected to a vacuum source via a pipe 3 closable by a valve 8 and a discharge nozzle connected to a pump chamber 21 via a pipe 3a closable by a valve 8a. Valves 8 and 8a are connected to respective slidable sleeves 2, 2a, sleeve 2 being manually movable to the left against spring 9 by a lever 12 and having a flange 15 engageable with a flange 15a on sleeve 2a to open valve 8a against spring 9a after the opening of valve 8. With the valves closed, as shown, vacuum in pipe 3 acts on diaphragm 19 via connection 22 to move the diaphragm upwardly to draw serum from reservoir 18 via check valve 24 into pump chamber 21. On initial movement of lever 12, valve 8 is opened to draw secretions through nozzle 1 and connect the upper side of diaphragm 19 to atmospheric pressure. On further movement of lever 12, valve 8a is opened and the resilience of diaphragm 19 discharges the contents of chamber 21 via nozzle 1a. In the alternative Fig.5 embodiment, a portable member 33 houses flexible tubes 34, 35 connected to suction and discharge nozzles 36, 37, respectively, a pinch valve on tube 34 being actuated by a lever 38 incorporating a lock 44 for holding the valve open, and a pinch valve on tube 35 being operated by a push button 46 incorporating a valve member which opens a port in tube 34 to atmosphere when the pinch valve on tube 35 is opened. Tubes 34 and 35 are connected to chambers 55 and 56, respectively, on opposite sides of a pumping diaphragm 54, the vacuum source being connected via pipe 57 to chamber 55, and chamber 56 being connected to a serum supply 60 via a check valve 59 and pipe 61.
Patent GB-1419677-A (GB)
Title: Draw-bar actuator for machine tools
IPC: F15B15/14
Filed: 1973-10-18
Abstract: 1419677 Hollow spindles BUCK TOOL CO 18 Oct 1973 [26 Oet 1972] 48575/73 Heading B3T A draw bar actuator for causing displacement of a chuck operating draw bar 22 through a rotating spindle 13 comprises a power unit 28 having a non-rotatable annular member 61  providing a plurality of circumferentially spaced cylinders 62 and a member 56 movable linearly by piston rods 73, and first and second bearings assemblies 26, 27 each comprising concentric inner and outer races, one of the races 39, 54 of each of the said assemblies being fixedly con - nected relative to the annular member 61 and movable member 56 respectively, and the other races 34, 49 being fixedly connected to the rotatable spindle 13 and draw bar 22 respectively. The power unit 28 is hydraulically actuated.
Patent GB-1414182-A (GB)
Title: Base for opthalmological medicinal preparations and an opthalmological medicinal film
IPC: A61K31/785
Filed: 1972-10-24
Abstract: 1414182 Opthalmic bases and compositions VSESOJUZNY NAUCHNO-ISSLEDOVATELSKY I ISPYTATELNY INSTITUT MEDITSINSKOI TEKHNIKI 24 Oct 1972 48884/72 Heading A5B [Also in Division C3] A therapeutic preparation for use in opthalmolegy comprises a polymeric base soluble in biological liquid and consisting of a homopolymer of an amide of acrylic acid having a molecular weight of 30000 to 1000000 and/or a copolymer of such amide having a molecular weight of 20000 to 500000 and containing 10 to 90% of acrylamide units, and an opthalmic medicament in the base. In examples the polymers used are polyacrylamide and copolymers of acrylamide with N-vinyl pyrrolidone or N- vinyl caprolactam and vinyl acetate or ethyl or butyl acrylate and the active principle is atropine, #-dimethylamino-ethyl-p-butylaminobenzoate, 5-iodo-2-desoxyuridine, 3-methoxy-6- sulphanil-amidopyridazine, 3-ethyl-4(1-methyl- 5-imidazolyl)-tetrahydrofuran-2-one or neamine. The preparation may be formed as a film.
Patent GB-1367299-A (GB)
Title: Method and device for the treatment of a liquid by flotation
IPC: B03D1/24
Filed: 1971-10-22
Abstract: 1367299 Flotation apparatus DEGREMONT SOC GENERALE D'EPURATION ET D'ASSAINISSEMENT 22 Oct 1971 [26 Nov 1970] 49195/71 Heading C1C In a flotation apparatus a stream of liquid to be treated (e.g. flocculated water) is passed from conduit c through a pit a into flotion tank b and treated with a stream of liquid saturated with gas (e.g. air) under pressure introduced horizontally into pit a through conduit d. The stream from conduit d is not tangential with respect to the stream from conduit c and the two streams do not directly intersect. Conduit d is provided with means for causing a stepped expansion of the gas-saturated liquid before entering pit a, e.g. the conduit d may comprise two valves, a valve and a tuyere or a valve and a pipe section of a smaller diameter than the conduit.
Patent GB-1159833-A (GB)
Title: Clutch Gearbox Assembly
Inventor: HAMILTON JAMES JOHN
IPC: F16H3/02
Filed: 1966-11-04
Abstract: 1,159,833. Change-speed control. FORD MOTOR CO. Ltd. 4 Nov., 1966, No. 49446/66. Heading F2D. To facilitate smooth rapid up-shifts in a tractor non-syncromesh gear-box (not shown) the input shaft 1 of the change-speed gear is constantly subjected to the brake drag of a diaphragm 19 which is secured by a circlip 23 to the shaft and frictionally engages at its outer rim 17 a stationary outer bearing race 9 secured in the gear-box housing. The dished part 19 of the diaphragm has a number of holes (not shown) through which the bearing is lubricated.
Patent GB-1119789-A (GB)
Title: Gas flow regulator with float disc
IPC: F16K31/22
Filed: 1965-11-23
Abstract: 1,119,789. Valves. JOH. VAILLANT K.G. 23 Nov., 1965 [28 Nov., 1964], No. 49684/65. Heading F2V. A gas flow controller has an inlet 12 and an outlet 20, flow between which is regulated by a sleeve 15 slidable over openings 14 in a tube 18 open to the inlet; the sleeve 15 is connected by webs 19 to a disc 16 that defines an annular gap 17 with the casing 11 through which the gas must pass to reach the outlet; a constant differential pressure is maintained corresponding to the disc weight. In another form (Fig. 3, not shown) ,the openings are downstream of the disc which is cupshaped and open to the gas upstream of the openings via holes in the disc. Either embodiment may include an adjustable by-pass between the inlet and outlet. Any gas passing between the sleeve and tube cannot flow to the outlet without influencing the position of the disc.
Patent GB-1473260-A (GB)
Title: Safety cut-out devices
IPC: E21C35/04
Filed: 1975-12-06
Abstract: 1473260 Machinery safety devices HAYDEN NILOS CONFLOW Ltd 6 Dec 1975 50155/75 Heading F2J A safety cut-out device 24 for a machine, e.g. a gate end mining machine 23 (Figs. 3 and 4) comprises a ball ended push-rod/lever 13 which is urged against a part-spherical seating 5 in a housing 1, 4 by one end of a spring-loaded plunger 8, the other end 10 of which has an axial cam ramp engaging a switch 11, 12 a rod (20) engaging a valve (21) controlling the on/off operation of the machine 23. The arrangement is such that two such levers 13 on spaced apart cut-out devices 24 and having depending arms 19 joined by a rod or trip bar 25, are normally each seated on their part-spherical seats 5, in the cut-out devices 24, by the spring-loaded plungers 8 which condition the switches 11, 12 or valves (21) for the "on" operation of the machine 23. In the event of the machine operator 26 being trapped by the machine 23 against a wall 27 &c. the engagement of the trip bar 25 against the machine operator 26 moves the trip bar 25 to angularly deflect and/or axially depress one or other or both of the levers 13 which depress the respective plunger 8 to operate the respective switch 11, 12 or valve to stop the machine 23.
Patent GB-1274506-A (GB)
Title: Hydrolysis of starch
Inventor: MOREHOUSE ALPHA L
IPC: C13K1/06
Filed: 1969-10-13
Abstract: 1,274,506. Hydrolysis of starch. GRAIN PROCESSING CORP. 13 Oct., 1969, No. 50241/69. Heading C3U. A starch hydrolyzate is produced by a process comprising treating in a first step an aqueous slurry of starch with an acid or enzyme to liquefy the starch and to provide an aqueous dispersion substantially free of residual starch granules with a measurable D.E. value not substantially above 3, then subsequently, in a second step, treating the dispersion with a dextrinizing enzyme at a temperature of 65-85‹ C., to achieve a product having a measurable D.E. value not substantially above 18, stopping the dextrinization reaction and recovering the hydrolyzate. The product may have a saccharide composition wherein the amount of glucose is less than 1% by weight and the amount of maltose is less than 6% by weight and may produce a solution free of opacity (transmittance of light rays through the hydrolyzate maintained at 10‹ C. for 48 hours is at least 70%) when solids concentration is 80% by weight for a product having a D.E. of 18.
Patent GB-1061300-A (GB)
Title: Method of preparing trialkylaluminium compounds
Inventor: LOBO PAUL ALLAN
IPC: C07F5/06
Filed: 1963-12-23
Abstract: In the process of preparing trialkylaluminium compounds, the alkyl groups of which contain 2 to 20 carbon atoms, by the steps of (1) preparing dialkylaluminium hydride by the reaction of trialkyl aluminium, metallic aluminium and hydrogen; and (2) reacting the dialkyl aluminium hydride with an a -olefin, between steps (1) and (2) the partial pressure of the hydrogen on the alkyl aluminium hydride is reduced.  Step (1) is conducted at a pressure of 20 to 500 atmospheres and at a temperature of 100-170 DEG  C.  The aluminium, preferably of particle size 3 microns to 0.125 inches, may contain 0.0005 to 2.0% by weight of added Ti, Zr, Nb, V, Sc, Hf and/or U. The trialkyl aluminium, preferably in an inert solvent, may be supplied by recycling part of the eventual product.  After step (1) the hydrogen pressure is reduced to 15 to 100 atmospheres in e.g. a flash zone or otherwise in the product line as the dialkylaluminium hydride is transferred from the first to the second reaction zone, the temperature at this stage being between 20 DEG  C. and 170 DEG C., preferably 85 DEG  C. to 150 DEG  C.  In step (2) conducted at a hydrogen partial pressure of 15 to 100 atmospheres and at a temperature of 85 DEG  C. to 200 DEG  C. the dialkyl aluminium hydride is reacted with an olefin R1R11 = CH2, where R1 and R11 are hydrogen or alkyl groups containing 1-18 carbon atoms and the olefin contains not more than twenty carbon atoms, during a residence time of 1 to 25 minutes.
Patent GB-1046119-A (GB)
Title: Improvements in rolling fragmentary aluminium into compact shaped bodies
IPC: B22F3/18
Filed: 1963-12-24
Abstract: In a process of rolling Al granules, shavings or powder a coating of Al is first formed on the rolls by rolling the powder through the rolls at a low pressure and/or temperature then the Al is rolled at a higher pressure and/or temperature with an oil emulsion on the rolls, to form a high density Al sheet, plate or section.  The Al powder after the formation of the coating on the rolls is heated to 400 DEG -600 DEG C. and then rolled in one pass an emulsion of 2-30% oil in water being sprayed on the rolls.
Patent GB-1445854-A (GB)
Title: Duplex exposure of original documents
IPC: G03G15/23
Filed: 1973-11-09
Abstract: 1445854 Duplex copying XEROX CORP 9 Nov 1973 [16 Nov 1972] 52121/73 Heading G2A Both sides of a sheet original are copied by passage of the original first over a flat platen having an exposure slit 22 and then round a drum 44 having an exposure slit 24, the image from slit 22 being reflected by a rotary mirror 28 in a first position and the image from slit 24 being reflected by a fixed mirror 42 and rotary mirror 28 in a second position. The images from both slits are then projected in sequence on to a rotary photoconductive drum 12 (the image from slit 24 being wrong reading), and after one image has been transferred to a roll 20, they are printed on opposite sides of a sheet 16 passed between drum 12 and roll 20.
Patent GB-1193639-A (GB)
Title: Additive Holders for Cisterns.
Inventor: THORNTON JAMES COWARD
IPC: E03D9/03
Filed: 1966-11-22
Abstract: 1,193,639. Liquid disinfecting device. J. GODDARD & SONS Ltd. 21 Nov., 1967 [22 Nov., 1966], No. 52216/66. Heading A5G. A device for allowing a solid material to disperse gradually in the water of a cistern comprises a base to which the solid can be attached and a cover for the solid attachable to the base, there being at least one hole in the cover remote from the base and at least one other hole in the cover or base, the whole being constructed so that it floats upright in water and a solution of the solid issues from the second (lower) hole(s) when allowed to do so, as by the flushing of the cistern. The embodment in Fig. 1 comprises a cylindrical cover 20 with holes 22 and a base 10 into which fits a solid block of additive 12, the second set of holes being present in the vertical short walls 14 in the base and in the corresponding points on the cover (see Fig. 2, not shown) The embodiment of Fig. 3 is basically similar, except that the second set of holes are formed by open, vertical "tubes" with bores 30 extending upwards from near the base of the cover.
Patent GB-1086859-A (GB)
Title: Maleamic acid derivatives and mineral oil compositions containing them
IPC: C10M141/08
Filed: 1964-12-23
Abstract: Distillate fuel oils or lubricating oils comprise as additives divalent metal, or alkoxydivalent metal salts of a N-substituted maleamic acid prepared by reacting maleic anhydride with a C4- 30 aliphatic tertiary alkyl primary amine.  Fuel oil compositions generally include 1-200 lb. additive per 1000 barrels oil and may include other components, e.g. foam inhibitors and ignition and burning quality improvers such as silicones, dinitropropane, amyl nitrate and metal sulphonates.  Lubricants generally contain 0.001-0.05% by wt. of the additives and may also include conventional anti-oxidants, pour-point depressants, V.I. improvers and extreme pressure agents. The maleamic salts impart anti-rust and emulsion-inhibiting properties to the oils. Examples relate to fuel oils.ALSO:The invention comprises N-substituted maleamic acid salts of a divalent metal or an alkoxydivalent metal which are obtained by reacting maleic anhydride with a mixture of tertiary alkyl primary amines containing 4-30 carbon atoms.  The preferred compounds are those derived from C12-24 amines in which the tertiary carbon atom is directly attached to the nitrogen atom.  Specified metals are Hg, Ba, Ca, Zn and Sr.  The compounds are generally made by reacting maleic anhydride and the amine at 65-100 DEG  C. and treating the resulting maleamic acid with one or two moles of the metal alkoxide or hydroxide.  Examples relate to salts derived from commercial mixtures of higher primary amines.  The salts are additives for lubricant and fuel oils (see Division C5).
Patent GB-1202588-A (GB)
Title: Process for catalytically converting so2-containing gases to so2 and sulphuric acid
Inventor: DRECHSEL HERBERT
IPC: C01B17/765
Filed: 1967-11-16
Abstract: 1,202,588. Contact process-SO 3 - METALLGESELLSCHAFT A.G. 16 Nov., 1967 [3 Dec., 1966], No. 52300/67. Heading C1A. In a multi-stage catalytic conversion of SO 2 - containing gases (using free oxygen-containing gases) to produce SO 3  which is absorbed to produce sulphuric acid, part of the gases leaving one stage along a closed path to the next stage are branched off, cooled, subjected to an intermediate absorption to remove SO 3  and mixed with the remaining gas prior to said next stage, the amount of branched-off gas being controlled, in dependence on the other operating parameters, so that the combined gases are at the required inlet temperature for the next stage. The volume fraction branched off after the first stage, may be 40-60%, giving a conversion of 98-98À5%. To obtain conversions above 98À8%, 20-40% volume of the gas leaving the second converter stage may be branched off and a corresponding cooling and absorption effected prior to the third stage. Intermediate absorptions may be carried out at 110‹ to 220‹ C. To obtain conversions above 99.3%, the absorption treatment described is effected between the second and third stages: prior to mixing the streams the treated fraction is heated in an exchanger to the required inlet temperature of the third stage. The volume fraction of gas branched off may be up to 90%. Alternatively, up to 90% by volume of gas flowing between the first and second stages is branched off and heated in a heat exchanger between absorption and remixing, while, e.g., 20 to 40% of the gas flowing between the second and third stages is branched off and treated without a heating step. In the heat exchangers, heat may be supplied from hot gas requiring cooling prior to the absorption treatment.
Patent GB-1211212-A (GB)
Title: Improvements in or relating to fuel injection pumps
IPC: F02M41/12
Filed: 1967-11-17
Abstract: 1,211,212. Fuel injection pumps. ROBERT BOSCH G.m.b.H. Nov.17, 1967 [Nov.19, 1966], No.52333/67. Heading F1A. The delivery quantity of a fuel injection pump is regulated by a spill valve 14 controlling spill passages 15a, 15b and which is moved against the return force of a spring 24 by hydraulic pressure generated by an auxiliary pump piston 18 the cylinder of which is connected to the valve chamber 16 via passages 22a, 22b on the delivery stroke and via a passage 25 having an adjustable throttle 26. on its return stroke whereby the return stroke of the valve 14 varies according to speed. The pump is of the rotating piston multi-delivery type and includes a distributing groove 11 and intake grooves 7. The auxiliary piston 18 has longitudinal grooves 21 and an annular groove 28 controlling the connection between the pump chamber and passages 22a, 22b which connection is only made after a predetermined stroke of the piston. In a modification Fig.2 (not shown) the annular groove (28) is formed in the main piston 1. In a further modification Fig.3 (not shown), a further groove in the piston 18 is provided which supplements the connection between the grooves 21 and the passage 22a at T.D.C. to allow angular adjustment of the pistons 1, 18 in the bores 2, 19 for timing purposes.
Patent GB-1101634-A (GB)
Title: Improvements in or relating to polyvinyl chloride compositions
Inventor: OGDEN SYDNEY
IPC: C08K5/098
Filed: 1965-12-10
Abstract: Stabilizers for P.V.C. are basic lead isophthalates used in amounts of 1-15% by wt. of the P.V.C.  The salts may contain 3-7% by wt. of hydroxyl groups.
Patent GB-526703-A (GB)
Abstract: 526,703. Calculating-apparatus. SOC. ITALIANA COMMERCIO MACCHINE PER UFFICIO. March 24, 1939, No. 9349. Convention date, March 25, 1938. [Class 106 (i)] A differential mechanism for a calculating machine comprises a set of wheels, each wheel having two groups of teeth mounted for movement in a direction parallel to their axis, and key-controlled means for moving selected teeth of the groups in opposite directions to position the selected teeth in operative relation with respect to the totalizer actuating pinions. The machine shown in Figs. 1 and 2 comprises a keyboard A, differential mechanism B and a laterally movable carriage C with a totalizing- counter C 1  and a quotients or revolutions counter C 2 . The keys 1 in each row have stems 2 formed with notches that co-operate with a pivoted detent plate 5 and are provided with projections 7 that co-operate with pins 8 and 8a on spring-controlled sliding bars 9 and 9a. The upper end of each bar is connected to a pivoted bell crank 11 with a cam projection 14 at its upper end adapted to move angularly an amount corresponding to the key depressed. Each differential actuator comprises a pair of discs 15, 15a keyed to a shaft 39 and formed with radial notches 16 and apertures 31 for the reception of teeth that are individually movable in a direction parallel to the axis of the shaft 39. The discs 15a for the tens and higher denominations have additional notches 17 spirally arranged for guiding the transfer teeth and cam projections 18 for restoring the transfer parts. The teeth are formed with guiding wings 30, Fig. 4, and with projections 33 of varying width and disposition for co-operation with the differential set cam projections 14. On rotation of the shaft 39, by gearing connected to the operating crank 41, the teeth are displaced against the action of springs 32 into alignment with intermediate pinions 35 which actuate the pinions of the totalizer C 1 . For transfer purposes a tooth on a totalizer pinion rocks a lever 36, Figs. 1 and 3, and sets a cam 37 thereon in the path of movement of the transfer tooth 19 or 29 to render it effective.
Patent GB-1110697-A (GB)
Title: Improvements in or relating to a slurry process for preparing carboxymethyl cellulose
Inventor: BISHOP ROBERT GRANVILLE
IPC: C08B11/12
Filed: 1965-12-14
Abstract: Carboxymethyl cellulose (CMC) is made by a slurry process comprising (1) preparing alkali cellulose using an alkali/cellulose wt. ratio of 0.4-2.0/1.0; (2) reducing the amount of alkali in the alkali cellulose to an alkali/cellulose wt. ratio from 0-0.25/1.0 in excess of that which will be chemically consumed during the etherification; and (3) thereafter etherifying the alkali cellulose to produce a water-soluble CMC having a D.S. of 0.25-0.75, which is uniformly substituted and which has a good salt tolerance in solution.  Step (2) may be effected by adding an acid.  Suitable starting materials are comminuted wood, straw, grass or cotton.  NaOH is exemplified as alkali, using monochloracetic acid as etherifying agent.
Patent GB-1380322-A (GB)
Title: Heat regenerator
IPC: C21B9/10
Filed: 1972-11-17
Abstract: 1380322 Hot blast stoves HOOGOVENS IJMUIDEN BV 17 Nov 1972 [19 Nov 1971] 53336/72 Heading F4K In a hot blast stove comprising a cylindrical outer refractory wall 1 divided by a separating wall 2 into a burner stack 3 and a checkerwork chamber 4, and wherein the walls 1 and 2 are each constituted, by a number of refractory layers 12, 13 and 14, at least one of the layers of one or both of the walls 1 and 2 is provided with one or more expansion joints 15 which permit expansion in the horizontal direction longitudinally of the wall. As shown each expansion joint 15 is formed by a projecting tongue on a brick 16 which fits into a complementary shaped groove in a brick 17 in a manner permitting relative movement between the bricks in the plane of the wall. The tongue and grooves are preferably of trapezoidal shape, the open spaces in the expansion joint being filled with a compressible material, e.g. ceramic wool or felt. In an alternative embodiment (see Fig. 5, not shown) each expansion joint (15) is constituted by a series of filling bricks (18) slidably positioned in and between recesses in adjacent bricks (16 and 17).