baber/WOPTO huggingface dataset:
Patent GB-396540-A (GB)
Title: Mechanism for controlling a side-slip indicator device for the instruction of aircraft pilots
IPC: G09B9/16
Filed: 1932-06-25
Abstract: 396,540. Apparatus for teaching aviators. AIR SERVICE TRAINING, Ltd., JENKINS, H. F., and BERLYN, R. C., Hamble, near Southampton. June 25, 1932, Nos. 17978, 17979, and 17980. [Class 4.] Apparatus for ground flying instruction comprises an indicating means the pointer of which is connected to an element differentially connected by inextensible means to two controls so that movement of either control moves the pointer without moving the other control. In Fig. 1, a cable 10 passes round a drum on the spindle of a pointer 11 co-operating with the fixed scale of a bank or side-slip indicator. One end of cable 10 is attached to a pulley 13 in a bight of a cable 14 one end of which is movable by the instructor whilst the other end is movable by the pupil respectively through pivoted control members 15, 16. A weight 17 on cable 10 balances equal weights 18, 18 connected to the control members. Means are provided for adjusting the zero of the pointer 11. In modifications tension springs are substituted for the bias weights. In a further modification rigid links articulated to a floating beam to the midpoint of which cable 10 is attached are substituted for pulley 13 and cable 14. The last form may be further modified by omitting the biasing means and rigidly coupling the pointer to the mid-point of the floating beam. Fig. 5 shows a practical arrangement of one of the above described devices wherein pulley 13 is biased by a weight 33 approximately equal to the sum of the two weights 18 and weight 17. A similar arrangement to that shown in Fig. 5 is described as applied to a rudder-bar controlled turn-indicator. Fig. 7 shows a combination of this last device with that of Fig. 5 whereby the instructor is enabled to show on a bank-andturn indicator a turn with side slip or side slip and turn separately. Fore and aft movement of the control levers may, similarly, be arranged to change the reading of a pitch indicator of the type comprising a column of fluid in a tube having a graduated scale. In this case the reservoir of the liquid is the element moved and serves itself or is weighted to form a bias weight. Specification 378,172 is referred to.
Patent GB-581624-A (GB)
Title: Improvements in or relating to brake and clutch mechanism
IPC: F16D51/08
Filed: 1944-09-21
Abstract: 581,624. Friction clutches. DUNLOP RUBBER CO., Ltd., and BUTLER, H. J. Sept. 21, 1944, No. 18013. [Class 80 (ii)] [Also in Group XXXIV] A distensible annulus for effecting the radial movement of the friction elements of brakes and clutches is formed with two concentric chambers one of which is used for the application of the clutch &c. while the other may be used for adjusting the friction elements. The brake for an aircraft land wheel shown comprises a rubber &c. annulus a mounted in a channel-section support 14 and arranged to apply shoes 3 to a drum 4. The annulus is formed with chambers 1, 2 the inner of which may be connected by a pipe 11 to a source of pressure for applying the brake while the inner may be distended to the desired extent with oil or grease by the connection 5 to adjust the shoes.
Patent GB-1096386-A (GB)
Title: Improvements in static electric converters
IPC: H02M7/15
Filed: 1965-04-29
Abstract: 1,096,386. Converting. ALLM€NNA SVENSKA ELEKTRISKA A.B. April 29, 1965 [April 30, 1964], No. 18017/65. Heading H2F. A bridge - connected converter has in each arm one or more main valves 2 and an auxiliary valve 1 arranged as in the Figure. The transformer is connected so that when the current is increasing a voltage is developed which opposes the voltage across the auxiliary valve, and when the current is decreasing a voltage is developed which increases the voltage across the auxiliary valve. Consequently towards the end of each conducting period the auxiliary valve takes over the current from the main valve which then has longer to deionize. Preferably the auxiliary valve does not carry any current in the midpart of each conducting period. The main valve is fired 30Á sec. after the auxiliary valve. If there are several main valves in parallel, then the transformer 6, 7 is interconnected with the current sharing inductors of the main valves (Figs. 3 and 4, not shown).
Patent GB-950058-A (GB)
Title: Improvements in and relating to moulding processes and apparatus
Inventor: BROWNING JOHN STANLEY
IPC: B29C43/00
Filed: 1959-05-27
Abstract: 950,058. Compression-moulding apparatus. COSMOCORD Ltd. May 27, 1960 [May 27, 1959], No. 18051/59. Heading B5A. Compression-moulding apparatus comprises dies of insulating material of low dielectric loss and includes means for heating the moulding material during moulding by a radiofrequency field, the said dies being prepared from a pattern of the article to be compressionmoulded. A pattern of an article to be moulded is prepared and a pair of moulding dies of resin-impregnated glass fibre, glass, or ceramic are moulded or cast around the pattern. The dies are then inserted in a suitable press the platens of which form the electrodes of a radio-frequency heating system. Materials to be moulded in the press must have sufficient conductivity or dielectric loss to enable them to be heated by the applied radio-frequency current. The dies may be of alkyd, epoxide, or polyester resin.
Patent GB-591943-A (GB)
Title: Improvements in optical polarizing sheets
IPC: D06M13/507
Filed: 1943-11-01
Abstract: A polyvinyl acetal polarizing sheet is protected against the action of heat and light, and is prevented from shrinking, by treating it with a liquid comprising an organic ester of silicic acid and effecting condensation polymerization of the ester on or within the sheet, volatile products used or formed in the process being removed. The sheet may be formed of polyvinyl butyral, rendered polarizing by stretching and treatment with an iodine compound such as HI.  The protective liquid may comprise tetra ethyl orthosilicate and a penetrant such as ethylene dichloride, the latter causing swelling of the sheet and rendering it receptive to the silicate.  Alternatively, alcohol may be used as the penetrant.  After the sheet has been dipped in the ethyl silicate-ethylene dichloride mixture it is dipped into a 2 per cent solution of HCl in water saturated with ethylene dichloride to cause condensation between the polyvinyl butyral and the silicate.  After removal of the excess of reagents by a solvent which does not attack the sheet, the sheet is dried.  It may subsequently be heated to increase its stability.  Polarizing properties lost during the process may be restored by treating the sheet with an intensifying solution containing propyl alcohol, iodine, and hydriodic acid.  Alternatively, ethyl silicate may be added to the intensification solution, impregnation and intensification being carried out simultaneously.
Patent GB-418609-A (GB)
Title: Improvements in or relating to a method of and means for manufacturing strips of belt lacing hooks
IPC: B21F45/24
Filed: 1933-06-26
Abstract: 418,609. Making belt-fasteners. BROKING, W., Gevelsberg, Westphalia, Germany. June 26, 1933, No. 18209. [Classes 83 (ii) and 83 (iv).] Shearing ; punching ; riveting ; bending.-In making a gang of wire belt-lacing hooks H united by flat lacing-bars L, the hook wires are cut to length and swaged into recesses cut at intervals in the bars L, and the wires are then bent hook-shaped and the whole is bent U-shape to form lacing-hooks, Fig. 37, which are subsequently cut into gangs. Feeding wires L, Fig. 8A. A cam on the drive-shaft reciprocates a slide 96 and a cam 99 oscillates a block 91 about a pin 92 to clamp together parts 93, 95, 98 and the two wires. The slide 96 is reciprocated to feed the wires a distance of the width of two hooks. Feeding wire H<1>, Fig. 4. A cam on the driveshaft reciprocates a plate 119, and a slide 112 also is reciprocated and carries an anvil 114 against which the wire is clamped by a member 115. The wire passes through a cam-operated check to prevent backward movement. Shearing.-Cutters 150 operated by a crosshead 56, sever the wires H obliquely to point the ends. The built-up hook structure is severed into gangs of eighty-four hooks. A crosshead 56, Fig. 12, carries a ratchet 195 with forty-two teeth. On each upstroke of the head 56 an abutment 201 moves a pawl lever 198 one tooth space. At the end of forty-two reciprocations a tooth 205 depresses a frame 207 and surfaces 210 position laterally movable anvils 212 under the wires L and a cutter 213 effects severance. Punching.-The wires L<1>, Fig. 17, are notched by a die 142 and tools 139, 143. The wires are fed past the die and the tools are adjustably mounted on cam-reciprocated guides operated simultaneously. The waste is deflected through the die by surfaces 147. Strippers, Fig. 19 (not shown), are raised to free the wires by a cam on the drive-shaft. Riveting.-The wires H<1>, Fig. 23, are forced into the notches 130 by spring-pressed plungers 153 and on further lowering of a head 152 projections 157 swage the metal of the wires L<1> to secure the wires H. A surface 159 flattens the fastener. Angular bending.-Fig. 27. The hook-wires are assembled to project as shown in Fig. 31 (not shown). On descent of tools 183 the wires are bent over a die 176 carrying the wires L<1> to the dotted position. Horizontally reciprocated tools 184 then complete the bending of the hooks. The hooks are then bent to U-shape, Fig. 37, by a reciprocating tool Fig. 13 (not shown). Welding.-In a modification, Fig. 39 (not shown), wires are secured by electric welding instead of by riveting.
Patent GB-530395-A (GB)
Title: Improvements in or relating to conveyor chains
IPC: B65G17/08
Filed: 1939-06-22
Abstract: 530,395. Conveyer chains. CAMPBELL, H. June 22, 1939, No. 18219. [Class 24] Conveyer chains of the type which are constructed to bend in planes parallel and at right angles to the conveyer surface, comprise links A consisting of two parallel side plates 3 connected by transverse rivets 4 and spacers 5, and connecting links B consisting of two U-shaped members 1, 2 connected by rivets 6 and respectively embracing the rivets and spacers of the adjacent links A. The ends of the members 2 fit inside the ends of the members 1, and both are biassed to the open position. The conveyer surface may be formed by integral wings extending laterally from the upper edges of the plates 3, and tapered outwardly to allow bending of the conveyer in the plane of its surface. All the parts are preferably made of stainless steel, and the spaces between adjacent ends of the links B form the teeth for engaging the driving sprocket.
Patent GB-356320-A (GB)
Title: Improvements in or relating to screw-down cocks, valves and the like
IPC: F16K31/50
Filed: 1930-06-14
Abstract: 356,320. Stop valves. GODDARD, M. E., 31, Thorne Road, Doncaster, and GODDARD, P., 18, Hesley Lane, Thorpe Hesley, near Rotherham. June 14, 1930, No. 18246. [Class 135.] Lift valves; materials, special.-In a screw down lift valve or cock operated by a rotary nut spindle, as C, the head S of the valve is formed of square cross section so as to slide axially but not rotate in the correspondingly - formed valve body D. The valve member S is tapered or coned and tipped with stainless steel, or the whole member S may be made of this metal. The seating A may consist of a hard metal bush which is removable.
Patent GB-440341-A (GB)
Title: Improvements in pistons and in processes for their manufacture
IPC: B22C9/24
Filed: 1934-06-20
Abstract: 440,341. Casting composite pistons. FLEURY, R. DE, 12, Boulevard Emile-Augier, Paris. June 20, 1934, No. 18269. Convention date, June 23, 1933. [Class 83 (i)] [See also Group XXVI] Cast-in metal rings 1, 2 having a lower coefficient of expansion than the light metal piston, are supported during casting in grooves 21 in the outer members 8, 9 of a three part core. The rings are cut away or divided at 6 to permit removal of the key part 7 of the core. Tongues on the periphery of each ring are bent alternately in opposite directions.
Patent GB-229198-A (GB)
Title: Improvements in driving and revolving means for fans and the like
IPC: F04D25/10
Filed: 1924-07-31
Abstract: 229,198. Cairns, J. July 31, 1924. Mounting.-The casing 2 of a spring-operated fan 26 is mounted with rotary freedom on a pedestal 4. A shaft 6, locked to the pedestal by a screw 33, carries a gear-wheel 7 which meshes with a wheel 7<a> on a sliding shaft 35 when a pinion 34 on the shaft 35 meshes with a driving wheel 8, so that the casing 2 rotates. A spring 12 is fastened at one end to the casing and at the other to a shaft 9, which carries a ratchetwheel 13 engaging with a pawl 14 on the wheel 8 loosely mounted on the shaft 9. The wheel 8 drives he fan 26 through gearing15 - - 24. A spring brake-arm 29 is actuated by a lever 31 to press upon a brake-wheel 32 on the fan-shaft 25. In a modification, the driving-mechanism includes pulley-gearing.
Patent GB-1263202-A (GB)
Title: Alkaline phosphatase test
IPC: C12Q1/42
Filed: 1970-04-16
Abstract: 1,263,202. Determination of alkaline phosphatase. PFIZER Inc. 16 April, 1970 [14 Jan., 1970], No. 18310/70. Heading B1X. A test pack for the determination of alkaline phosphatase in human serum or plasma comprises bottled reagents comprising (A), a 3M aqueous solution of 2-amino-2-methyl-1-propanol containing about 1% w/v disodium monophenyl phosphate and about 0.6% w/v 4- aminoantipyrine, having a pH of about 10; (B), a buffered aqueous solution pH about 10 and containing about 0.32% w/v sodium carbonate and about 0.17% w/v sodium bicarbonate; (C), a colour developer solution having pH about 10. and containing about 0.32% w/v sodium carbonate, about 0.17% w/v  sodium bicarbonate and about 2.4% w/v potassium ferricyanide, and (D) a standard solution containing 0.1% w/v phenol in 0.1 NHCI. In carrying out the test, sample is incubated with a mixture of solutions (A) and B, the resulting solution is incubated with reagent (C), and the product is measured at 500 mu against a standard prepared by incubating a mixture of solutions C and D.
Patent GB-675631-A (GB)
Title: Improvements in dry gas meters
IPC: G01F3/22
Filed: 1950-07-24
Abstract: 675,631. Counting-apparatus. BEGWACO METERS, Ltd., BUTTERWORTH, E., and HINCHCLIFFE, E. J. July 24, 1950, No. 18397/50. Class 106 (i). [Also in Group XXIX] In a gas meter of the type having its diaphragms enclosed within rigid compartments variable gearing is interposed between the meter valve operating spindle and the index mechanism so that the ratio of revolutions of the index operating shaft to the valve operating spindle may be adjusted to ensure accuracy of the index mechanism. In the gas meter shown the diaphragm movements are transmitted via the usual flags, flag rods, flag arms e, e<SP>1</SP>, links f, f<SP>1</SP>, and tangent arm h into rotary motion of the shaft j at the lower end of which is fixed the usual eccentric arm and pin for effecting operation of the valves k, k<SP>1</SP>. This rotary movement of the shaft j is transmitted through worm l and wheel m to the shaft n upon which a cone p is fixed. A cone q is also carried upon the shaft n and whilst it is forced to rotate with the shaft by the pin r it can move axially thereon its movement away from the cone p being resisted by the spring shown. A shaft s, parallel to shaft n, carries a similar arrangement of fixed and sliding cones the fixed cone p<SP>1</SP> being disposed in line with the sliding cone q and the sliding cone q<SP>1</SP> being opposite the fixed cone p. An annulus t is disposed in driving contact with both pairs of cones. A fork u engages in grooves in extensions of each of the sliding cones q, q<SP>1</SP> so as to move them axially relative to the fixed cones p, p<SP>1</SP> so as to increase or decrease the space between one pair of cones whilst simultaneously decreasing or increasing the space between the other pair. The effect is that the points of contact of the annulus t with one pair of cones moves outwards or inwards in relation to the shaft carrying the cones and with the other pair of cones moves inwards or outwards respectively in relation to the shaft carrying the same so increasing or decreasing as the case may be the ratio of the revolutions of the shafts n and s. The fork u is moved by a screw on the rod v which passes through a stuffing box w in the meter casing x. The movement of the shaft s is transmitted to the index mechanism y and, through worm gearing, via the shaft z to prepayment mechanism. In a modification, Fig. 5; variation of ratio of the revolutions of the shaft j to the revolutions of the index driving shaft and of ratio of the speeds of shaft j and the shaft driving the prepayment mechanism is effected by change gears 5, 6 and 7, 8, respectively.
Patent GB-1220358-A (GB)
Title: Anchor link
IPC: F16B39/34
Filed: 1968-06-07
Abstract: 1,220,358. Bolted joint. GENERAL STEEL INDUSTRIES Inc. 7 June, 1968, No. 18399/70. Divided out of 1,220,357. Heading F2H. A link for connecting a pair of plates 53, 55 having aligned holes 57 comprises a rod 61 which passes through the holes and has enlarged threaded end portions 63, a spacer sleeve surrounding the rod between the plates and having end flanges 67, a washer 69 on each end 63 having a tubular extension 71 slidable inside the sleeve 65, annular rubber pads 73 mounted on extensions 71 on either side of each plate with ribs 75 entering holes 57, and nuts 77 threaded on end portions 63 for compression of the pads 73 between the washers 69, plates 53, 55 and flanges 67. Shims 79 may be provided.
Patent GB-276291-A (GB)
Title: Process for metallising furs and feathers
IPC: C23C14/20
Filed: 1926-05-20
Abstract: 276,291. Bosse, J. von, Richter, K., Lauch, K., and Siegelberg, H., and Koch, W., (trading as Siegelberg & Koch). May 20, 1926. Spark and low-pressure electric discharges, depositing substances by. - Fur and feathers are coated with metal by exposure to cathode rays in a vacuum, the cathode being of the metal to be deposited. The electrodes are provided with cooling means; e.g. they may be formed as coiled tubes through which water is passed. In depositing gold a cathode of copper electroplated with gold may be used. High tension direct or alternating current may be used. The pressure may be 0.02 m.m. of mercury.
Patent GB-1298579-A (GB)
Title: Nitrosaminals
Inventor: EITER KARL
IPC: A01N51/00
Filed: 1970-04-17
Abstract: 1298579 Nitrosaminals BAYER AG 17 April 1970 [18 April 1969] 18463/70 Heading C2C A process for the preparation of a nitrosaminal as claimed in claim 1 of Specification 1,298,580, comprises reacting an amine of the formula wherein R is an optionally substituted aliphatic, araliphatic, aromatic or heterocyclic radical, with approximately the stoichiometric amount of each of (i) an aldehyde of the formula wherein R<SP>1</SP> is hydrogen, a -CHO group or an optionally substituted aliphatic, araliphatic, aromatic or heterocyclic radical which may carry a -CHO group as additional substituent, (ii) a compound of the formula wherein R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> are hydrogen or optionally substituted aliphatic radicals, and one of R<SP>2</SP>, R<SP>3</SP> and R<SP>4</SP> may also be an optionally substituted araliphatic, aromatic or heterocyclic radical, and X is oxygen or sulphur, and (iii) nitrous acid or a compound yielding nitrous acid, at a temperature of from -30‹ to + 20‹ C.
Patent GB-1150053-A (GB)
Title: Recovery of Crude Petroleum
Inventor: GOGARTY WILLIAM BARNEY
IPC: C09K8/584
Filed: 1966-04-27
Abstract: 1,150,053. Secondary recovery. MARATHON OIL CO. 27 April, 1966, No. 18480/66. Addition to 1,058,974. Heading E1F. In the process of Specification 1,058,974 the micro emulsion used as a drive liquid is made by adding aqueous diluent to a "soluble oil" until the viscosity of the microemulsion has a viscosity at least equal that of the crude oil in the formation.
Patent GB-181251-A (GB)
Title: Improvements in or relating to hinges
IPC: E05D15/32
Filed: 1921-07-09
Abstract: 181,251. Bonell, H., Bonell, E. T., and Lee, D. July 9, 1921. Double and multiple hinges. - A concealed hinge for motor-vehicle doors and other members comprises two separate blocks or plates 1, 2, each having two sets of bosses 3, 4 to receive pins for links 5, 6 of unequal length, the links being disposed within the bounding surfaces of the plates. The plates are recessed or slotted to accommodate the links, and preferably also the bosses, when closed. The hinge pins may be removable, and the plates are let into the door and support. Specification 2234/09 is referred to.
Patent GB-404007-A (GB)
Title: Improvements in and relating to methods and apparatus for the production of lead pigments
IPC: C09C1/14
Filed: 1932-07-01
Abstract: Lead pigments are precipitated from a lead nitrate solution obtained by adding lead ore, concentrate, scrap or the like progressively to dilute nitric acid, nitric acid being added progressively to the reaction mixture.  The solution is preferably boiled while dissolution is being effected, and in the case of lead sulphide <PICT:0404007/III/1> <PICT:0404007/III/2> ores and concentrates, dissolution is effected at a pressure such as to maintain the temperature below that at which lead sulphate is formed, e.g. at an absolute pressure of 12--12\ba1/2\be lbs. per sq. in. and at 190 DEG --212 DEG  F.  In this case also, nitric acid of 1--1\ba1/2\be per cent concentration is employed.  Stronger acid, up to about 15 per cent concentration, may be used for the dissolution of lead scrap. The filtered solution is treated for the removal of iron.  Lead chromate is obtained by precipitation with sodium bichromate, lead sulphate by means of sodium sulphate or sulphuric acid, or white lead of variable composition by means of soda and soda ash.  The pigment is filtered, washed and dried. The filtered sodium nitrate solution is crystallized and treated with sulphuric acid for recovery of nitric acid for reuse.  A suitable digester consists of a shell 10 heated by a steam or water jacket 12, or by oil or gas jets.  The shell is subdivided by baffle plates 13, so arranged that the liquid entering at 16 and escaping at 17 passes in a tortuous path through the digester. The liquid level is disposed below the tops of the upper baffles. The concentration of the acid in the digester is maintained by the addition of acid of moderate strength through pipes 15 terminating below the liquid level.  The lead ore, &c., is introduced through pipes 14, each supplied with double valves 22 (Fig. 4) in order that the reduced pressure in the digester may be maintained. Evolved nitrous fumes, oxidized by a small stream of air entering pipe 18 and removed through evacuating pipe 19, pass to gas absorbers, the weak acid obtained thereby being mixed with that from the crystallized sodium nitrate.  The digester is fitted at the bottom with pipes enabling it to be washed out, the said pipes also serving for the introduction of water to the solution when necessary. A 20 per cent solution of lead nitrate may be produced.  When battery grids are dissolved, antimony contained therein is deposited in the digester, whence it is periodically removed and treated for the production of metallic antimony or antimony pigments.