baber/WOPTO huggingface dataset:
Patent GB-1069052-A (GB)
Title: Polyhydroxyamide derivatives
IPC: G03C1/10
Filed: 1963-06-11
Abstract: The invention comprises compounds of the formula <F\1> in which R is a C1- 20 alkyl group, R7 is an ethylene group, Y is a hydroxy group and q and q1 each represent an integer such that the total of the 4q's and q1 has an average value of 6-100. The compounds are made by reacting the appropriate N-methyl-gluconamine with ethylene oxide or a polyethylene glycol.  The pentahydroxy compounds can be converted to the corresponding penta-methane-sulphonate esters by reaction with methylsulphonyl chloride and these esters further reacted with tertiary bases to give compounds in which Y is <FORM:1069052/C2/1> where R2-4 are C1- 4 alkyl groups and X- is an acid anion.  The examples relate to compounds in which R is lauryl and the methane sulphonate esters and pyridinium methane sulphonate salts thereof.ALSO:The invention comprises compounds of the formula <FORM:1069052/C3/1> in which R is a C1- 20 alkyl group, R7 is an ethylene group, Y is a hydroxy group and q and q1 each represent an integer such that the total of the 4q's and q1 has an average value of 6-100. The compounds are made by reacting the appropriate N-methyl-gluconamine with ethylene oxide or a polyethylene glycol. The pentahydroxy compounds can be converted to the corresponding penta-methane-sulphonate esters by reaction with methylsulphonyl chloride and these esters further reacted with tertiary bases to give compounds in which Y is <FORM:1069052/C3/2> where R2-4 are C1- 4 alkyl groups and X(-) is an acid anion.  The example relate to compounds in which R is lauryl and the methane sulphonate esters and pyridinium methane sulphonate salts thereof.
Patent GB-890270-A (GB)
Title: Production of uranium tetrafluoride
IPC: C01G43/06
Filed: 1960-10-28
Abstract: Uranium tetrafluoride is produced by treating an aqueous solution containing hexavalent uranyl ions, e.g. UO2F2, with SO2 and hydrofluoric acid at a temperature between 100 DEG  and 275 DEG C. and under superatmospheric pressure between 40 and 250 p.s.i.a. in the presence of a copper fluoride or sulphate catalyst.  The reaction vessel may be lined with "Teflon" (Registered Trade Mark) or lead. Sulphuric acid in the reaction mixture minimizes corrosion and does not interfere with the reaction provided that the amount is kept below 10% by weight.  The starting material may also be UO2SO4, leach liquor from uraniferous ore, impure UF6 treated with water, or a mixture of any of these.  The catalyst may be used in amounts providing a Cu/U ratio within the range 0,0002-0,5:1, preferably 0,001-0,03:1.  An aqueous solution of the uranyl compound, excess hydrofluoric acid, and a small amount of copper fluoride or sulphate are placed in the reaction vessel, the reactants are heated to a temperature within the range 100 DEG -275 DEG C., SO2 gas under pressure is introduced into the vessel, and the pressure is maintained preferably above 50 p.s.i.a.  At the end of the reaction, the pressure is released and the contents of the reaction vessel cooled.  The product is a slurry of precipitated uranium tetrafluoride UF4. 3/4 H2O, which is filtered off and dried at about 110 DEG C.  If the starting material contained ammonium salts, the precipitate may consist partly or wholly of UF4.-NH4F, which is decomposed to UF4 by heating to about 300 DEG C.  In Example 1, the catalyst used is CuSO4.5H2O, and in Example IV, it is CuF2.
Patent GB-951070-A (GB)
Title: Improvements in and relating to elastic fluid turbines
IPC: F01D25/26
Filed: 1960-10-28
Abstract: 951,070. Turbine casings. PRVNI BRNENSKA STROJIRNA, ZAVODY KLEMENTA GOTTWALDA, NARODNI PODNIK. Oct. 28,1960 [Oct. 31, 1959], No. 37206/60. Heading FIT. In an elastic-fluid turbine with an inner casing 1 and an outer casing 4, the inner casing 1 is mounted within the outer casing 4 so that the brackets 3 of the outer casing, on which brackets 2 of the inner casing are mounted, are in alignment with brackets 5 by which the outer casing 4 is mounted on its bearing pedestals 6. The inner casing brackets are supported by the outer casing brackets in such a way that the horizontal joints of both casings lie in the same plane.
Patent GB-946090-A (GB)
Title: Improvements in core drills
Inventor: MILLER HAROLD CHALMERS
IPC: E21B21/02
Filed: 1961-10-17
Abstract: 946,090. Drills. SUPER-CUT Inc. Oct. 17, 1961, No. 37245/61. Heading B3C. [Also in Division F2] A glass or like core drill comprises a one piece tube 10 having a diamond impregnated matrix 16, and an adapter 40 forming a reservoir for supplying coolant to the diamond portion, from a cock 50 through a bore 14. The outer periphery of tube 10 is sealed by synthetic resinous e.g. P.T.F.E. washers 70, which rotate with the tube, and a spring urged into engagement with end caps 60.
Patent GB-1277217-A (GB)
Title: Cable joint
Inventor: IDOMOTO SOZO
IPC: H02G15/184
Filed: 1969-07-24
Abstract: 1277217 Cable joints SUMITOMO ELECTRIC INDUSTRIES Ltd Y SUGIMOTO S NAKATA and A NAKASHIMA 24 July 1969 37331/69 Heading H2E A joint in cables having conductive cores, core insulation 3, and conductive sheaths C comprises an insulating sleeve 2, which is larger than the, overall cable diameter, and spacers 4 each of which is arranged between core insulation 3 and a corresponding end of the sleeve 2 and incorporates a stress-relief core 5. The sleeve 2 may thus be slid aside over one cable during jointing, so that cutting back of the cable is minimized, and the spacers 4 are made in a range of sizes to allow one size of sleeve 2 to be used with various cable sizes. The sleeve 2 is prefabricated from. synthetic rubbers and comprises an insulating portion 2b and inner and outer semi-conductive portions 2a, 2c respectively. A stress-relief cone may be incorporated at one or both ends of the sleeve 2. The spacers 4 are also moulded from synthetic rubber and each spacer is located by an internal flange thereon which fits between the cable core joint 1 and the end of the insulation 3. The cones 5 reduce the electric stress at the ends of cable shielding tapes T. The arrangement may be used for a cable branch joint or for a termination in direct connection with an appliance.
Patent GB-1336789-A (GB)
Title: Pyrotechnic device ignition systems and pyrotechnic devices incorporating the same
IPC: F42C7/12
Filed: 1971-08-09
Abstract: 1336789 Igniters for parachute suspended flares THIOKOL CHEMICAL CORP 9 Aug 1971 [10 Sept 1970] 37341/71 Heading F3A An igniter for an aircraft-launched, parachutesuspended flare comprises a lanyard 13 for transmitting the pull from the parachute to a lever 19 which is arranged to retract and then release a striker 25 for movement against a primer 31, the primer serving to ignite a pelletized boron potassium nitrate composition 33 which in turn ignites a wafer 35 formed of a dispersion of ammonium perchlorate in a matrix of acrylobutadiene polymer. The latter ignites the flare composition 45 and is protected against inadvertent ignition by dropping, with the aid of a piece of foamed polystyrene 37. A shear pin 23 retains the lever 19 in its inactive position.
Patent GB-518604-A (GB)
Title: Improvements in or relating to the welding of metal bodies
IPC: B23K11/26
Filed: 1938-12-23
Abstract: 518,604. Supply systems for welding arcs. ARMSTRONG, J. J. V. (Vanco Products Co.). Dec. 23, 1938, No. 37406. [Class 38 (iv).] [Also in Group XXII] Welding is effected by producing a discharge preferably of the order of 1,000 volts at 1,000 cycles between the flat surfaces to be welded and then forcing the surfaces into percussive engagement. The bodies 18, 19 to' be.welded are held in chucks 5, 6 and are coupled to a condenser 4 through a variable resistance 7. The condenser is charged in one or two seconds by rectified current from a step-up transformer 1 fed at 110 volts. The discharge is effected in a time of the order of 0.0001 seconds the percussive engagement occurring at the end of the first or second current wave. The chuck 5 is mounted on, a slide 9 and is moved by a pneumatically-operated toggle lever 11. In welding a copper rod to a nickel rod the voltage used is 1,700 and the condenser capacity is 100 microfarads. Discharge occurs with a gap of 0.0135 inches at 9,500 cycles and a current of 20,000 amps.
Patent GB-784277-A (GB)
Title: Purification of salicylic acid derivatives
IPC: C07C69/86
Filed: 1955-12-30
Abstract: Functional derivatives of salicylic acid are purified by treating an impure form of the derivative with a dilute aqueous solution of a water-soluble polybasic acid, particularly phosphoric, tartaric or citric acid.  Specified functional derivatives include esters, e.g. methyl, ethyl, propyl, isopropyl, butyl, phenyl, 2 : 4-dinitrobenzyl, tolyl, naphthyl, furfuryl and cyclohexyl salicylate, and trisalicyclin; O-ethers, e.g. 2-methoxy-, 2-ethoxy-, 2-propoxy-, 2-isopropoxy-, 2-phenoxy-, 2-benzyloxy-, 2-(p-ethylphenoxy)-, and 2-(21,41-dichlorophenoxy)-benzoic acid; O-acyl derivatives, e.g. acetyl, salicyl, phenacyl, benzoyl, and p-nitrobenzoyl salicylic acid; ether-esters and acyl-esters, e.g. the methyl, ethyl, phenyl and p-nitrobenzyl ethers of phenyl salicylate (salol), O-acetyl, O-benzoyl and O-nicotinyl salol, methyl, ethyl and benzyl acetylsalicylate; and salicylamide. Normally the quantity of polybasic acid required is between 0.1 and 1 per cent by weight of the sum of the weights of all the materials used in the treatment. In examples: (1-3) crude acetyl salicylic acid in methanol is treated with charcoal and the filtrate after cooling to 45 DEG  C. is treated with cold aqueous phosphoric acid, when crystals of pure acetyl salicylic acid separate; (4) crude acetyl salicylic acid in methanol (50 per cent solution) is treated at 10 DEG  C. with 1 per cent aqueous tartaric acid, when pure acetyl salicylic acid crystallizes; (6) as in (4) using citric acid instead of tartaric; (6) wet crude salol in hot methanol is cooled and aqueous phosphoric acid added during crystallization yielding pure phenyl salicylate.  Salicyl salicylic acid, methyl salicylate and salicylamide are also purified with phosphoric acid.
Patent GB-883025-A (GB)
Title: Method and apparatus for washing and rinsing of domestic laundry articles
IPC: D06F31/00
Filed: 1957-12-02
Abstract: 883,025. Washing-machines. ROTHENBERGER, J. Dec. 2, 1957, No. 37416/57. Class 138 (2). A group of sequentially-operated washing machines are permanently connected by pipe lines, and liquid passes through the machines in two flows of opposite directions. As shown, applied to a washing installation rotating in the direction of arrow N, fresh water is added to dirty clothes in machine 10 and to clean clothes in machine 1, arrows N and M showing the directions of flow. The worst of the dirt is removed in machines 9 and 10 and flows off as indicated at arrow P. Washing is carried out in machines 5 to 8 and rinsing in machines 1 to 4, a part of the flow of rinsing liquid added to machine 1 flowing off at G and the remainder being used for washing in machines 5-8 after which it is discharged at P. The system is equally applicable to stationary machines set in a row (Figs. 2 and 3, not shown), the end machines of the row being connected by pipes. In an alternative embodiment (Fig. 1, not shown), fresh water is added to a single machine and caused to flow in the direction of arrow M or N by rotating the drum of the machine clockwise or anticlockwise.
Patent GB-323625-A (GB)
Title: Method of and apparatus for contracting or expanding the rims or other portions of the walls of sheet metal vessels or containers
IPC: B21D51/26
Filed: 1928-12-18
Abstract: 323,625. Mauser Maschinenbau Ges., and Mauser, R. Dec. 18. 1928. Angular bending; corrugating.-The rims b or an intermediate part of the body of a sheet metal vessel or container a is contracted or expanded by bending it round a drawing edge by one or more pairs of forming rollers g, f, which are radially displaceable with respect to the work, the rollers of each pair being yieldingly held together by a pressure or tension device. The drawing edge may consist of a roller d and an external ring c. The rollers d, f, q or the work rotate about the axis of the work during operation.
Patent GB-326832-A (GB)
Title: Radio receiving sets
IPC: H03J5/24
Filed: 1928-12-19
Abstract: 326,832. Spencer, K. S. S., and Rees Mace Manufacturing Co., Ltd. Dec. 19, 1928. No Patent granted (Sealing fee not paid). Thermionic amplifiers and detectors; receiving-sets, construction of.-The switches for adjusting the wave-band range of a screened high-frequency amplifier, having ganged tunable coupling units, are controlled simultaneously by means extending within the screens. The anode circuits of the screen-grid valves 5, 14 include tuning condensers 11, 18 and pairs of transformers 8, 9 and 17, 19. In one position of the ganged switches 4, 10, 16, coil 1 of the loop aerial is in circuit with condenser 3, and transformers 8, 17 are connected to the condensers 11, 18, while in the other position, coils 1 and 2 in series are in circuit with condenser 3, and transformers 9, 19 are in circuit. The output circuit of the detector 23 includes a filter circuit 26 to shunt high-frequency currents. The ganged switches have cams which press pairs of springs into engagement. Specifications 252,829. [Class 37, Electricity, Measuring &c.]. and 286,353 are referred to.
Patent GB-523161-A (GB)
Title: Improvements in or relating to mats of insulating material
IPC: E04C2/32
Filed: 1938-12-23
Abstract: 523,161. Compound sheet materials. KOOPERATIVA FORBUNDET FORENING U.P.A. Dec. 23, 1938, No. 37528. Convention date, Dec. 23, 1937. Drawings to Specification. [Class 140] [Also in Groups III and XIII] In making insulating mats of the kind described in Specification 448,543, consisting of a plurality of corrugated sheets of cellulose ester or like material united at the apices of the corrugations by an adhesive which has a solvent effect on the sheets, the adhesive is applied to parts only of the apices, the uncoated contacting areas serving to maintain the spacing of the sheets. The adhesive may be applied in lines by passing the sheets over a roller wetted with adhesive and intermittently contacting the sheets and the roller, or by use of a roller having projecting bands or fitted with a scraper which keeps parts of the roller free from liquid.
Patent GB-764625-A (GB)
Title: Improvements in or relating to a method and device for gauging arcuate surfaces
IPC: G01B13/16
Filed: 1954-12-29
Abstract: 764,625. Gauging arcuate surfaces. SHEFFIELD CORPORATION. Dec. 29, 1954 [Dec. 29, 1953], No. 37536/54. Class 106 (2). .In an apparatus for gauging, e.g., the arcuate surface of a ball race, a work contacting element is oscillated in contact with the surface about a pivot axis and means are provided for positioning the pivot axis until it coincides with the centre of curvature of the surface being gauged. The workpiece, e.g. the race 14, Fig. 1, is held on a support 18 by means of an adjustable V- block-19 and clamping arm 20, the support 18 being secured to a vertically movable slide 11. The work-contacting element 17 forms part of a gauge head 15 secured to a block 35 mounted on, and adjustable horizontally with respect to, a block 30 in turn mounted on and adjustable vertically with respect to a plate 28 secured on a spindle for pivotal movement with respect to a horizontally adjustable slide 12 carrying the spindle. The spindle 27, Fig. 3, can be oscillated, thereby moving the contact element 17 over the arcuate surface to be gauged, by means of a piston mounted in a cylinder 51 whose piston-rod 50 is coupled by a link 49 to a slide 46 on a crank 45 fixed to the rear end of the spindle 27. A similar link 48 connects the crank to the piston of a damping device 55. Gauging movements of the element 17 vary the quantity of air escaping from an orifice 13 by varying the position of a flow controlling surface at the end of an arm 22 and are indicated by a float-type pressure gauge. Adjustments are made in the relative positions of the slides 11, 12 and of the gauge head 15 relatively to the plate 28 until equal swings of pressure are obtained as the plate is oscillated on either side of zero on the scale 42. At this point the pivot axis of the element 17 coincides with the centre of curvature of the surface being gauged and the radius of that surface can be obtained by comparison of the mean pressure reading with that obtained from gauging a master piece.
Patent GB-820438-A (GB)
Title: Improvements in and relating to a sound-deadening panelling for ceilings and walls
IPC: E04B9/06
Filed: 1957-12-03
Abstract: 820,438. Ceiling and wall panels. FISCHER, J. Dec. 3, 1957 [Dec. 4, 1956], No. 37623/57. Class 20(4) Sound-deadening panels 8 for ceilings or walls are releasably carried by channelshaped parallel rails 4 secured by their backs and having free edges 6 facing away from each other, the free distance from a narrowed back portion of one rail to the projection 6 of an adjacent rail being at least equal to the transverse length of the panel 8. The rails 4 may be carried either in slots 3 formed in downwardly bent lugs 2 of rails 1 attached (as shown) to a ceiling or wall or directly thereto by holders secured to the rails. The rails 4 are of thin sheet metal, the flanges being resilient so that the panel 8 may be edged into the position shown at the left, then displaced to the left and pulled down so as to be engaged in grooves 7 as shown on the right.
Patent GB-512551-A (GB)
Title: Improvements in the manufacture of soap
IPC: C11D13/18
Filed: 1938-12-28
Abstract: 512,551. Homogenizing soap. FAIRWEATHER, H. G. C. (Colgate-Palmolive-Peet Co.). Dec. 28, 1938, No. 37653. [Class 91] Homogeneous soap free from striations, hard particles and air pockets is made by feeding milled partially dried soap into an opening 10 at the end of a cylinder 12 containing a worm 11, and surrounded by a jacket 27 maintained at 80‹F. by cooling water. The compressed soap is forced through 'a grinding head 13, and foraminous plate 14 having conical-shaped holes of about 12-15 thousandths inch diameter. The filaments of soap free from hard particles thus formed are severed by a rotating knife 18, and the soap pieces fall on to a second worm 21 working in a vacuum. The soap is worked and compressed to remove occluded air, and is then forced through a nozzle 23, heated to about 110-118‹F. to form a continuous bar of soap. A vacuum pump is attached at 36.
Patent GB-336865-A (GB)
IPC: B04B3/00
Filed: 1929-12-10
Abstract: 336,865. Ramesohl &. Schmidt Akt.- Ges. Dec. 10, 1928, [Convention date]. Density and strainer separators combined.-A centrifugal machine for clarifying and purifying liquids has two or more concentric drums driven by a common shaft, and traversed in series from the inside towards the outside, by the liquid to be cleaned. The two drums 1, 4, shown, are mounted on the shaft 2 and are arranged inside the stationary casing 28 which supports a cover having chambers 26, 27 for the reception of the discharged liquids. The annular space between the drums contains a cylindrical wall 5 with tubes 19 adjustable relatively to the axis of the machine. This construction provides three chambers I, II, III, respectively inside the drum 4, between the wall 5 and the drum 1, and between the wall 5 and the drum 4. The chamber III contains a cylindrical filter 20; the chamber I contains vertical tubes 9, each having an inlet slot 10 in its lower half, and having in its upper end a screw plug 11 with a hole 11<1> bored eccentrically. The chamber I also contains a bell-shaped member 12, and the space between the bell and the wall of the drum 4 leads up to discharge passages 14 with screw plugs 15 having eccentrically placed holes 15<1>. The bell 12 carries a number of blades 12' which are inclined to the radius of the drum to assist the lighter materials to move towards the axis of the machine. Plugs 17 with eccentrically placed holes 17<1> are arranged in the base of the drum 4 to establish communication between the chambers I, II. The liquid to be cleaned passes from the chamber 25, through the slots 6 in the sleeve 3, to the chamber I in the drum 4 where the first separation occurs. The heavy part is thrown to the wall and passes up over the bell 12 to the passages 14 and holes 15<1>; the light part passes through the slots 10 into the tubes 9 and rises upwards to the holes 11'. The main stream, partly cleansed, passes through the holes 17<1> in the base, into the chamber II. The heavy part is deposited on the drum-1 and the light part passes through the passages 19 into the chamber III. Here the liquid passes inwards through the filter 20, in which the last impurities are retained, and then passes through the opening 21 to be thrown off the lip 24. It is collected in the chamber 27 from which it can be drawn off. The: degrees of separation can be varied by moving the passages 19 towards or away from the axis, and by rotating the plugs 11, 15, 17 with eccentrically placed holes.
Patent GB-1216448-A (GB)
Title: Improvements in or relating to cryopumps
IPC: F04B37/08
Filed: 1969-07-29
Abstract: 1,216,448. Vacuum pumps. L'AIR LIQUIDE SOC. ANON. POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGE CLAUDE. July 29, 1969 [July 30, 1968], No.38096/69. Heading F1N. A cryopump comprises a sealed casing lined with thermal insulation 21, an inlet closable by a valve 13 and connectible to a chamber to be exhausted, a stack of spaced apart frustro-conical baffles 26 aligned with the axis of the valve 13, and cooled gas condensation surfaces 22 surrounding the baffles 26. The baffles and an inner lining 29 are contacted by a cooling coil 32, 30a, 28a...31, 28e through which flows gaseous helium at 80K. The gas condensation surfaces 22 are composed of a plurality of square plates spaced along the length of a cooling coil 23 through which flows gaseous helium at 23K. An installation, Fig.1 (not shown) comprising two identical cryopumps is described, the cryopump being connected in parallel to enable one to be regenerated while the other operates. During regeneration conduit 52 supplies dry gas to the cryopump and the liquefied deposit flows out through this conduit 52.