baber/WOPTO huggingface dataset:
Patent GB-1475869-A (GB)
Title: Chromated copper arsenate wood preservative compositions
IPC: B27K3/32
Filed: 1976-04-15
Abstract: 1475869 Chromated copper arsenate wood preservative KOPPERS CO INC 15 April 1976 15725/76 Heading A5E An aqueous chromated copper arsenate solution for use in preserving wood contains hexavalent chromium and trivalent chromium in a ratio of from 4.0:1.0 to 1.0:1.0, the solution having a pH below 2. The solution preferably comprises from 40.0 to 70.0 parts by weight of chromium measured as CrO 3 , from 15 to 23 parts by weight of copper measured as CuO and from 14.0 to 50.0 parts by weight of arsenic measured as As 2 O 5 . The trivalent chromium may be obtained by reduction of hexavalent chromium using specified reducing agents, or by using appropriate starting materials. In the examples wood treating solutions are made from Na 2 Cr 2 O 7 , K 2 Cr 2 O 7 , Cr 2 (SO 4 ) 2 , CrO 3 , CuSO 4 , CuCO 3 , As 2 O 5 , H 3 AsO 4  and As 2 O 3 .
Patent GB-496952-A (GB)
Title: Surfacing or paving composition
IPC: E01C7/18
Filed: 1937-06-08
Abstract: A surfacing or paving composition comprises granite chippings, limestone dust, flue dust and bitumen.  In an example the composition comprises granite chippings 40 per cent, limestone dust 40 per cent, flue dust 9 per cent, and bitumen 11 per cent.
Patent GB-1363579-A (GB)
Title: Master slave motor system with start-up control circuit
IPC: H02P5/50
Filed: 1972-04-06
Abstract: 1363579 Starting electric motors BORGWARNER CORP 6 April 1972 [24 May 1971] 15907/72 Heading H2J The speed of a slave motor, normally controlled by a master motor speed dependent signal, is controlled, upon starting, by a regulator coupled to the master motor speed regulator, changeover to the normal mode of control occurring at a preset value of the measured speed of one of the motors. In the embodiment shown, the speeds of master and slave'motors 10, 11, e.g. in a textile machine are regulated during starting by potentiometers 13, 21 respectively which are mechanically coupled to maintain the motors in synchronism. At a preset master motor speed, as sensed by regulator 24 from the output of tachogenerator 18 driven by the master motor, the speed regulation of the slave motor is automatically switched to a running mode where the slave motor potentiometer 21 is inoperative and the regulating signal obtained from the tachogenerator 18. Regulator 24, also Fig. 3 (not shown), may comprise a transistorized Schmitt trigger which de-energizes a switching relay at the preset master motor speed, as determined by a diode chain. The motors may be D.C. with separately excited fields 10A, 11A as shown, with the slave motor control 15 being an amplifier, or may be A.C. motors with potentiometer 13 controlling the supply frequency to motor 10 and control 15 further including an inverter. Tachogenerator 18 may be replaced by an apertured disc, light source and photo-cell arrangement. In an alternative, Fig. 2 (not shown), regulator 24 may sense the speed dependent armature voltage of the slave motor. Potentiometers 13, 21 may be replaced by electronic registers, electrically coupled.
Patent GB-355345-A (GB)
Title: Improvements in and relating to water heaters
IPC: F23M9/00
Filed: 1930-05-23
Abstract: 355,345. Stove details. CHAPMAN, F. W., 14, Gonville Road, Thornton Heath, Surrey. May 23, 1930, No. 15953. [Class 126.] A domestic water-heater having a central open-topped flue 3 is provided with a flue baffle removable as a single unit, and comprising a number of flat plates 5 which are strung on a rod 6 and make contact over a considerable part of their periphery with the wall of the flue, thus giving up heat to the flue and constraining the gases to follow a tortuous course. In the form shown the plates occupy only the lower part of the flue, are of segmental shape, and are secured by nuts on a screwed rod 6 in such successive positions as to give the gases a substantially helical path. The assemblage is supported by an internal swaging 8 on the flue, on which the lowermost plate rests. In a modification, the plates are in the form of lunes having square apertures by which they are strung on a squared rod, tubular distance pieces being inserted between them.
Patent GB-318479-A (GB)
Title: Apparatus for sterilizing milk cans, bottles, and the like
IPC: A23C3/023
Filed: 1928-06-01
Abstract: 318,479. Brearley, H. June 1, 1928. Disinfecting-chambers.-Apparatus for sterilizing milk cans, bottles, and the like comprises a jacketed steam chest A, which is provided with a removable door, and in which small articles are treated, a boiler B, a steam superheating coil C, a nozzle c<6> supplying steam for sterilizing larger utensils, and a pipe leading to a tap c<9> which delivers hot water. The boiler B is formed with a partition b having an opening normally closed by a weighted safety valve b<1>, and surmounts a casing D, which is fixed to a shelf E projecting at one end of the steam chest. The casing D encloses the boiler burner and superheating coil C. Hot gases from the burner pass into the flue space a surrounding the steam chest A, and escape at an outlet at a<2>. Steam from the boiler B passes through a pipe c to the coil C, thence to a branched pipe c<4>, and enters the steam chest through nozzles c<5>. Steam may also pass from the coil C to another branch of the pipe c<4> leading to the steam jet nozzle c<6>, which projects from a wooden support c' carried by the shelf E, and is controlled by a cock c'. When steam is not being supplied to the nozzles c<5> or c<6>, the boiler may be filled to the top, and hot water drawn off from the tap c' which terminates one branch of the pipe c<4>. Specification 272,284 is referred to.
Patent GB-770596-A (GB)
Title: Variable-speed hydraulic clutches
IPC: F16D31/08
Filed: 1955-06-03
Abstract: 770,596. Hydraulic clutches. THOMAS HYDRAULIC SPEED CONTROLS, Inc. June 3, 1955 [Sept. 3, 1954], No. 16012/55. Class 69 (2). The clutch described in Specification 709,122 has the inlet openings, outlet openings and the discharge control valve modified. The inlet openings 100 are formed with narrow portions 101 and wider portions 102 so that as the valve control device is moved from its neutral position, each intake control valve 47 first traverses the narrow portion 101 and then the wider portion 102 so that progressively increased areas of the inlet openings are opened to the inflow of oil. The discharge control valve is formed with a narrow groove 304 and is moved simultaneously with the valves 47, the groove 304 first traversing rectangular areas 201 of outlet openings 200 and finally traversing triangular areas 202, the outlet openings becoming completely closed as the inlet openings - become completely open to flow of oil.
Patent GB-1309795-A (GB)
Title: Multiple tool holder
IPC: B23B29/20
Filed: 1970-04-03
Abstract: 1309795 Multiple tool holders GEORG FISCHER AG 3 April 1970 [7 April 1969] 16027/70 Heading B3T A multiple tool carrier for a machine tool such as a lathe comprises a body having a number of tool receiving stations 1 to 12 on its end face and peripheral face some of the tool stations being arranged in pairs 1 and 5, 2 and 7, 3 and 9 and 4 and 11 one on the end face and one on the peripheral face in each pair. Clamping elements 13 and 14 respectively associated with each one of a pair of tool stations are interconnected and displaceable by means of an eccentric bolt 18. The action of the bolt in each clamping element permits clamping or releasing of a tool or toolholder 17 on the receiving station which is provided guides 15 which locate the tool holder and against which the tool holder is held by its clamping member. In an alternative arrangement the eccentric bolt 18 engages in a bore 20 in one of the clamping elements 14 and also engages a pivotable lever 21 which co-operates with an abutment 24 and exerts a pull on the clamping member 13 by way of a tension rod 25. Spring members 23 are provided to take up slackness between the clamping elements 13 and 14 and the eccentric bolt 18.
Patent GB-1065214-A (GB)
Title: Motor vehicle epicyclic gear
Inventor: STOTT ENNO
IPC: F16D67/00
Filed: 1964-04-17
Abstract: 1,065,214. Hydraulic clutches. KLEIN, SCHANZLIN & BECKER A.G. April 17, 1964, No. 16061/64. Heading F2C. An hydraulic clutch in the form of a three-element epicyclic gear, of which the planets 3 operate as gear-wheel pumps controlled by valves A, has associated pistons B, C controlling forward and reverse spring coupling discs 10, 9, respectively. The spring-loaded piston valves A are connected between suction and delivery chambers S, D formed between the planets 3 and the sunwheel 2 and annulus 4, valves A and pistons B being mounted in a carrier 6 between the side cage elements of the planet carrier 5, while pistons C are mounted in the outer gear casing. Annulus 4 is coupled to the rotor 14 of a hydrodynamic turbo-brake 15 and the clutch is coupled to a hydrodynamic torque converter (not shown) supplying the operating liquid. As shown, with valves A closed, coupling disc 9 is inoperative, while disc 10 couples the planet carrier 5 to a plate 18 connected to the output shaft 8 to lock the gear for direct forward drive. With increasing pressure pistons B are first operated to release disc 10, pistons C are then operated to engage disc 9 with a plate 13 on the planet carrier 5 and thus couple the latter with the gear casing, and finally valves A are opened to allow pinions 3 to function and transmit reverse drive. A restriction (E), Fig. 3 (not shown), ensures correct operating sequence and a three-way valve (F) enables pistons C to be cut out to set the gear in neutral.
Patent GB-443707-A (GB)
Title: Improvements in the manufacture of artificial filaments, threads, and the like
IPC: D01F2/28
Filed: 1934-05-30
Abstract: <PICT:0443707/IV/1> Filaments, threads, and the like of organic derivatives of cellulose are stretched by passing them from the outer air into an end pressure chamber containing compressed air or other inert gas, in non-slipping contact with a positively driven feed device in the chamber, thence directly into a chamber containing saturated or wet steam under pressure at a temperature above 100 DEG C. and finally into the outer air, and stretching the materials whilst in the steam, the pressure of the inert gas being preferably only slightly lower than that of the steam.  For example, threads 1 from a creel of bobbins 2 pass through small orifices 3 into a compressed air chamber 4, around nip rollers 5, through small orifices 6 into a steam chamber 7, through small orifices 8, and around nip rollers 9 which stretch the threads. The stretched threads are collected on another creel of bobbins 10.  The chambers are each provided with a pressure gauge, relief valve, and drain pipe.  The steam enters through perforated pipes 15 so positioned as to direct the steam on to the threads immediately on their entry into the steam chamber.  This apparatus may also be used, as shown in Fig. 3, for stretching cellulose acetate threads in hot water as described in Specification 443,773.  The threads 1 pass over nip rollers 5, enter pressure chamber 4 through an orifice 3, pass directly into the liquid treatment chamber 7 in which they are stretched, and then enter a second pressure chamber 19, finally leaving by the orifice 20.  The threads pass around a second pair of nip rollers 9, which draw the threads at a higher speed than the first pair 5. Specifications 389,823, 438,584, 438,585, 438,586, 438,587, 438,655, and 438,656 also are referred to.
Patent GB-749225-A (GB)
Title: Emulsions and elements for colour photography
IPC: G03C7/327
Filed: 1954-05-31
Abstract: 749,225. Colour photographic emulsions. DU PONT DE NEMOURS & CO., E. I. May 31, 1954 [June 23, 1953], No. 16104/54. Class 98 (2). Silver halide is precipitated into an aqueous solution of a p-hydroxybenzaldehyde polyvinyl acetal free from colour forming substituents, allowing to ripen, treated if desired to remove water soluble salts, and the resulting dispersion is mixed with a polyvinyl acetal colour former together with any other desired emulsion con-. stituents. Normally the dispersion is divided into three parts to which appropriate sensitizing dyes and the colour former acetals are added to produce the three emulsions for true or false colour films or papers. The three balanced emulsions thus result from a single precipitation step. All procedure, examples and innumerable variations and alternatives are of the pattern of those described in Specification 746,804 which is directed essentially to the use of unsubstituted benzaldehyde polyvinyl acetal for the same purpose. Example I indicates the precipitation of silver bromide into a mixed polyvinyl acetal prepared from p-hydroxybenzaldehyde together with sodium benzaldohyde o-sulphonate, example II specifies the acetal from p-hydroxybenzaldehyde only, and seven further examples are directed to the mixed acetal of Example 1; colour-former acetals for use with the resulting light-sensitive dispersions are described with reference to Specifications 535,341,593,088,598,475,598,477, 598,479, 627,125, 627,353, 632,835, 635,294. 652,928, 662,793, 671,713, 695,164, 704,558 and 705,950.
Patent GB-702691-A (GB)
Title: Kinematograph intermittent film feed mechanism
IPC: G03B1/22
Filed: 1951-07-06
Abstract: 702,691. Kinematograph apparatus. DEBRIE, A. V. L. C. July 6, 1951 [Aug. 9, 1950], No. 16134/51. Class 97(1) An intermittent feed mechanism comprises a cylindrical cam with three peripheral tracks which produce, respectively, the feed and engaging movements of the claw and the movements of a counter balancing mass. As shown, the shaft 3 driven by the motor 1 carries the shutter 2 and the cam 4 with grooves 5, 6, 7. The groove 5 actuates a pin 8 on a crank 12, the shaft of which carries a lever 13 which produces the feed movements of a claw 11 on an arm 21 slidable in a ball socket 20. The groove 6 actuates the pin 9 of a crank, the shaft of which carries a crank 15, which actuates the arm 21 to engage or disengage the claw, and a crank 16 which, through a bell crank 24, actuates the register pin 17. The groove 7 actuates the pin 10 of a crank, the shaft of which carries a lever 23 with the counter balancing mass 22. The cam may be enclosed to maintain lubrication, the crank shafts emerging through stuffing boxes.
Patent GB-1155263-A (GB)
Title: Improvements in or relating to Control Circuits for Battery-Powered Trucks.
Inventor: COPE NORMAN JAMES
IPC: B66C13/22
Filed: 1965-04-15
Abstract: 1,155,263. Masted lift trucks. CLARK STACATRUC Ltd. 14 July, 1966 [15 April, 1965], No. 16153/65. Heading B8H. [Also in Division H2] A self-propelled battery-powered industrial truck with lifting facilities incorporates a control circuit for sensing the battery voltage and disabling the lifting facilities when the voltage falls below a predetermined amount for longer than a given time, so that undue loads cannot be imposed on a discharged battery; the control circuit itself being disabled during a lifting operation, so that lifting cannot be stopped in an inconvenient position. When the manual and seat switches RS1 and SS1 are closed by the operator of the truck the battery energizes control circuit relay coil VR/1 via a normally closed switch LS2. This in turn energizes a time delay relay TR/ 1 to change the position of contact TR1 and energize the hold relay coil HR/1. When the battery voltage falls below a given amount the relay VR/1 is de-energized and the contact VR1 opens, but the delay relay TR/1 is held on by the discharge of capacitor 18 and is therefore only de-energized if the voltage fall persists for longer than a given time, say 7 seconds. In these circumstances contact TR1 returns to its original position, energizing the latch relay LRA/2 to close contacts LRA2 so that the alarm 28 sounds, and change the position of contacts LRA1 so that the supply to the lift switch LS1 is cut off to prohibit operation of the lift gear. The circuit is such that the switch TS1 can still be operated to supply power to the driving circuits of the truck. An alternative arrangement uses a thermal relay in place of the capacitor controlled delay relay. The switch LS2 opens during the performance of a lift operation, to disable the control circuit during this time. Once the latch has operated, it can only be released by operating a special key switch KS2 after the battery has been recharged.
Patent GB-613967-A (GB)
Title: Locking nut
IPC: F16B39/32
Filed: 1946-05-28
Abstract: 613,967. Locking-nuts. JERNEWALL, H. M. May 28, 1946, No; 16209. Convention date, Dec. 6, 1945. [Class 89 (i)] Lock-nuts having a counterbore 13 to receive a spring that engages the bolt threads are constructed to permit removal of the nut, when required, without damage to the threads. To effect removal the end 14 of the spring that is retained in an open slot 15 is prized free therefrom enabling the nut to be reversely rotated through an angle sufficient to bring an abutment pin 17 into contact with the inner end of the spring to expand it and permit complete unscrewing. In modifications the pin 17 is replaced by a projection struck up from the wall of the counterbore or by a recess therein. In the latter case the inner end of the spring is slightly out-turned. The slot 15 may lead into an external notch to facilitate the application of a prizing-tool.
Patent GB-376910-A (GB)
Title: An improved composite material formed from woven fabric and paper
IPC: D06N7/00
Filed: 1931-06-04
Abstract: 376,910. Wrapping-materials ; sacks. JACKSON, H., Oakenclough Paper Works, Garstang, Lancashire. June 4, 1931, No. 16227. [Classes 94 (i) and 94 (ii).] A composite material capable of stretching both longitudinally and transversely and suitable for wrapping or packing or for making bags or sacks is made by uniting a woven fabric such as hessian, flax, jute or cotton to paper such as manilla or kraft paper crÛped or crinkled longitudinally and transversely, for example as described in Specification 376,846, [Group VIII], by an adhesive such as paste, cement, tar, bitumen, or pitch. The adhesive may be applied to the paper before or after crinkling and adhesion may be effected by pressing the material between pressing rollers or over drying rollers, for example in the machine described in Specification 18072/04, [Class 96, Paper &c.]. Specification 4404/03, [Class 96, Paper &c.], also is referred to.
Patent GB-809469-A (GB)
Title: A power take-off for motor vehicles
IPC: B60K25/00
Filed: 1956-05-25
Abstract: 809,469. Driving auxiliary apparatus. CLIFTON, F., and CLIFTON, H. May 16, 1957 [May 25, 1956], No. 16250/56. Class 79(2) A power take-off for connection between the clutch and gear-box of a motor vehicle comprises a casing 2-3 that supports between bearings 9-10 in its walls a main shaft 8 carrying a sprocket 13 and extending unbroken between its ends 11 and 12 outside the casing; said casing also mounting an output shaft 18 carrying a second sprocket 21 permanently meshed by chain 36 with the first sprocket and connected to the output shaft 18 by a clutch 24-27. Lugs 5 and bored bosses 5a are provided for connection to the clutch and gearbox housings. The sprocket 21 is fixed to a sleeve 22 that rotates freely on the shaft 18. Internal teeth 25 on an enlarged end 24 of the sleeve 22 mesh with teeth 28 on a member 27 sliding on splines on the shaft 18 to form the clutch assembly and are operated by an external lever 32 (Fig 2 not shown) and a pivoted fork 32. An idler sprocket 40 engages the slack of the chain 36 and can be turned on an eccentric to adjust the tension. The lower part of the casing is filled with oil and a plunger-pump operated by a cam (not shown) on the sprocket 13 supplies oil to the sprocket and bearings.
Patent GB-188699-A (GB)
Title: Improvements in aluminium alloys
IPC: C22C21/12
Filed: 1921-06-13
Abstract: 188,699. Bloxam, A. G., (Aluminum Co. of america). June 13, 1921. Alloys.-Aluminium alloys containing copper and magnesium, with or without manganese, chromium, or other metal, are improved by the addition of an alkali metal. For example up to 2 per cent of calcium may be added to an aluminium alloy containing about 4 per cent of copper and about 0.5 per cent of magnesium, with or without about 1 per cent of manganese. The allovs may be made by utilizing suitable proportions of previously prepared rich alloys of aluminium with the other constdtuent metals.
Patent GB-545909-A (GB)
Title: Improvements in aircraft construction
IPC: B64C39/00
Filed: 1940-11-08
Abstract: 545,909. Aircraft construction. DUNCAN, W.O. (Engineering & Research Corporation). Nov. 8, 1940, No. 16276. [Class 4] In an aircraft construction comprising a hollow fuselage and hollow wings the wing loads are transmitted through the skin of the wings and fuselage in a direction transverse to the line of flight by forming the skin of the wings and fuselage in a continuous sheet and by constructing the walls of the wings and fuselage in the transverse direction substantially straight. A number of forms of straight-sided fuselage are described; in the form shown the top wall comprises two plates 11 extending upwardly in a slight V and the bottom wall two plates 14 similarly extending downwardly. The walls 14 curve over the front to form the nose and the fuselage section tapers back toward the rear in the shape of a true aerofoil. The top wall, in another form, comprises a single flat wall continuous with the top walls or skin of the wings. Bulkheads 22, 24, are arranged as shown, additional bulkheads being provided if desired, particularly in construction having a larger cabin space. Continuity of the skins of the walls of the wings and fuselage may be effected by means of connecting members 26, Fig. 11, extending completely around the ends of the sections to be joined and having mating flanges adapted to be bolted or riveted together. The members 26 are riveted to the outer aluminium skins 18 and have skirt portions conforming to and secured to the corrugated reinforcing sheets 20. Thick plywood skins may be used. The mating flanges may be extended to form a bulkhead 28 or they may be connected to a single bulkhead. Additional tie rods in the fuselage and a transverse truss extending between the wing tips may be provided. A tail group may be mounted on the structure or it may be tailless. Windows may be inserted in the sloping lower sides of the fuselage. For a flying boat, a retractable V-sectioned step may be provided. Another form of suitable step comprises two plates 64, Fig. 10, longitudinally hinged together and capable of retraction by a rod 66 slidably mounted in a slot in the bulkhead 22 and linked thereto.
Patent GB-425102-A (GB)
Title: An improved aluminium alloy
IPC: C22C21/12
Filed: 1933-06-07
Abstract: The properties of the alloys described in the parent Specification are improved by the addition of 0,02-2 per cent of manganese or of manganese together with one or more of the metals chromium, cobalt, molybdenum, tungsten, and vanadium, at least half of such additions being manganese.  The alloys may be heated at about 520 DEG  C. for about half an hour, quenched, and aged either naturally or by heating at about 160 DEG  C. for about 6 hours; or they may be treated as described in Specification 382,422 or 390,244.