baber/WOPTO huggingface dataset:
Patent GB-1311013-A (GB)
Title: Process for the polymerization of olefins
IPC: C08F2/00
Filed: 1970-06-12
Abstract: 1311013 Polymerizing olefins FARBWERKE HOECHST AG 12 June 1970 [12 June 1969] 28644/70 Heading C3P Low molecular weight olefin polymers are prepared by solution polymerization of olefins at 110‹ to 180‹ C. and pressures up to 50 atmospheres in the presence of a catalyst comprising (A) a reaction product of a titanium tetrahalide and a magnesium alcoholate and (B) an organo aluminium compound and hydrogen as molecular weight regulator in such an amount that the waste gas remaining after polymerization contains at least 60 volume per cent of hydrogen. Specified olefins are ethylene, propylene, butene, pentene, 4-methylpentene-1 and octene-1. The magnesium alcoholate may be derived from methanol, ethanol, propanols, butanols or #- phenylethanol, and may be a half halide, sulphate or carboxylate. The aluminium compound may be an aluminium trialkyl or a dialkyl hydride or alkyl halide. The process may be effected batchwise or continuously in hydrocarbon liquids, and the products purified by treating with alcohols and/or steam distilling. Many suitable catalyst ingredients are specified, and examples describe the polymerization of (1 to 5) ethylene and (6) ethylene and propylene in the presence of catalysts formed from magnesium ethylate and titanium tetrachloride with (1, 2 and 6) triisobutyl aluminium, (3 and 4) diisobutyl aluminium hydride and (5) triethyl aluminium, or from (2) magnesium propylate and titanium tetraohloride with isoprenyl aluminium.
Patent GB-1113668-A (GB)
Title: Improvements relating to gaming devices
IPC: A63F5/04
Filed: 1965-07-06
Abstract: 1,113,668. Games. C. E. STURDY. 6 Dec., 1965 [6 July, 1965], No. 28674/65. Heading A6H. A gaming device comprises a wheel mounted for rotation about a vertical axis and carrying a series of spaced pockets arranged in a circle whereby a ball can lodge in any of said pockets each pocket being associated with at least one symbol, at least three symbols being used and at least two of the symbols being applied to a plurality of pockets and at least two identifiably different balls, each for lodging in any of said pockets. In the example shown in Fig. 1 a gaming device 5 is mounted on a board provided with a grid pattern for use in placing bets in the form of counters. The gaming device bears a ring of pockets with names corresponding to those on the board. The gaming device is provided with a red ball and a white ball which randomly select pockets in the spinning wheel.
Patent GB-209850-A (GB)
Title: Improvements in and relating to speed controlling system for motors and the like
IPC: H02P5/50
Filed: 1922-10-21
Abstract: 209,850. British Thomson-Houston Co., Ltd., (General Electric Co.). Oct. 21, 1922. Speed maintaining systems.-In systems for maintaining a given ratio between the speeds of a number of motors, such as electric motors, compensating rheostatic devices are moved automatically according to the changes of electric current in a circuit fed differentially by generators which are driven by or otherwise caused to give out a voltage proportionate to the speeds of the respective motors. For a system of two motors A, B, Fig. 1 of which one is electric, driving rolls of rolling mills, a compensating rheostat R connected to the field winding of the electric motor B is operated by an auxiliary motor E in a circuit 4 fed differentially from two generators C, D driven by the respective motors. Alternatively, the circuit 4 may energize a relay of the Kelvin balance type, which either connects the motor E reversibly to a separate feeding circuit or energizes one or the other of two electromagnetic clutches 38, 39, Fig. 3, which puts the rheostat member 35 in driving connection with a constantly running motor G. When both motors are electric, both may be provided with compensating rheostats driven simultaneously in opposite directions. In a further modification, Fig. 6, the working motors A, B rotate centrifugal pumps 50, 51 which actuate rheostat members 59 to vary the field strength of the respective generators C, D. The differentially energized circuit 4 acts through an auxiliary motor E upon a motor-compensating rheostat R as in the former modifications.
Patent GB-603752-A (GB)
Title: Improvements in or relating to rolling mills
IPC: B21B27/03
Filed: 1945-10-30
Abstract: 603,752. Rolling. SMITH, S. S., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Oct. 30, 1945, No. 28699. [Class 83 (iv)] A composite roll for a metal rolling mill comprising an alloy cast iron shell shrunk on to a steel shaft and having necks of substantially greater diameter than the intermediate portion encased by the shell is characterised in that at least one of the necks is formed as a separate entity from the shaft so that it may be fitted to the end of the shaft after the shell has been shrunk on. The shell 2, preferably not less than three inches thick, is shrunk on to a steel shaft 1 whose dimensions are determined by the external diameter and thickness of the shell. At each end of the shell are necks by which the roll is mounted in its bearings, one neck being larger than the other and having a keyway 5 for a driving gear. One or both necks comprises an alloy sleeve 4 shrunk on to the shaft and, if desired, both the shell and the sleeves may be formed with interengaging end dogs such as 6. One of the necks may be integral with the shaft.
Patent GB-1267712-A (GB)
Title: Sheet material
Inventor: KASPAR PETER DALZELL
IPC: B32B3/24
Filed: 1969-02-14
Abstract: 1,267,712. Laminates. INTERNATIONAL PLAYTEX CORP. 14 Feb., 1969, No. 28835/71. Divided out of 1,267,711. Heading B5N. [Also in Division C3] A laminated material, suitably forming a body constricting garment such as a girdle, comprises an intermediate foraminous sheet 20 of elastomeric latex, and thin stretch fabric outer layers 31 and 32 bonded thereto. The foraminous sheet has open and closed regions 200, the open regions each having a plurality of perforations 195 and more perforations than the closed regions, and at least some of said closed regions having a predetermined lesser thickness of latex than said open regions such that said closed regions have a greater surface of latex per unit area than said open regions without having a correspondingly greater amount of latex per unit area.
Patent GB-432124-A (GB)
Title: Improvements in aircraft of the helicopter type
IPC: B64C1/00
Filed: 1933-10-18
Abstract: 432,124. Aircraft with rotary wing systems. ASBOTH, O., 1, Gower Street, London. Oct. 18, 1933, No. 28864. [Class 4] In a wing for a rotating wing aircraft, the blades are formed so that the part situated near the axis of rotation has a zero or small, preferably negative, angle of incidence and the remaining part has a positive angle of incidence diminishing towards the wing tip. The smallangled part is equal to or less than half the length of the wing and may be adjusted rotatably or longitudinally about a longitudinal axis of the blade. As shown in Fig. 3, the inner parts 4 of the blades 4, 5 can be rocked on a longitudinal axis by links 6 attached to a sleeve 7 slidable on the shaft of the rotating wing system. In the arrangement shown in Fig. 5, the wing formed with the two-part blades 4, 5 is combined with a wing which has blades 41 with a small or zero angle of incidence and which can be disconnected from the shaft 8 when the upper wing is driven by an engine. In an alternative arrangement, Fig. 4 (not shown), the additional blades 4<1> are arranged between, and in the same plane as, the twopart blades 4, 5. In a further arrangement, Fig. 7, double-flap members 10 are attached to the rear edges 9 of the inner parts 4 of the blades. The opening of the flaps is controlled by links 18 carrying rollers 16 which engage with a cam sleeve 14, the position of which is controlled by a governor 12 driven from the shaft 11 of the rotating-wing system. The governor may be connected or disconnected from the shaft 11 under the control of an anemometer 13 which also controls the connection of the shaft 11 to the engine. The double flaps 10 which may be replaced by single flaps or ailerons may be moved longitudinally of the blade 4 and may be moved from their normal positions against the action of springs.
Patent GB-188322-A (GB)
Title: Improvements in combustion turbines
IPC: F02C3/045
Filed: 1922-10-24
Abstract: 188,322. Dufour, L. Nov. 4, 1921, [Convention date],. Axial-flow type; blades; cooling parts; working- fluid supply.-The blade-wheels of multi-stage axial-flow combustion turbines are constructed to act also as centrifugal compressors for compressing comparatively cool air and/or gases and passing the same through the hollow turbine blades and through specially designed guide passages in the stator. Each wheel b<1>, b<2>, b<3> carries (1) hollow axial-flow blades e co-operating with the gas-nozzles q<1>, q<2>, q<3>, and (2) impeller blades d forcing cool air or gases radially outwards through the blades e and back to the eye of the next impeller by way of large channels h<2> having guides n. The channels h<2> are traversed by the nozzle chambers q<1>, q<2>, q<3> which are formed with ribs r, s to avoid eddies. In a modification the nozzle chamber is traversed by the air channel. The hollow blades may be formed from a hollow tube of suitable shape, and may comprise a middle portion a, Figs. 8 and 11, of the usual shape, and an outer and inner portion b, c of rectangular shape. To increase the cooling effect, longitudinal ribs may be arranged inside the portion a.
Patent GB-642962-A (GB)
Title: Pipette for measuring the surface tension of liquids
IPC: G01N13/02
Filed: 1947-10-30
Abstract: 642,962. Testing surface tension of liquids. MERRY, G. Oct. 30, 1947, No. 28964. Convention date, Oct. 15, 1946. [Class 106 (ii)] A pipette for the direct measurement of surface tension comprises a tube 1, having a capillary bore, provided with a scale graduated in surface tension units. It may be provided with a bulbous portion 3 in which is an air vent 4. The end of the tube 1 is inserted into the liquid to be tested, and the height to which the liquid rises in the tube is a measure of the surface tension. The lower part of the tube 1 may have a larger diameter bore than the upper, scaled part. The scale may be marked directly on the tube or on a separate support..
Patent GB-693454-A (GB)
Title: Improvements in or relating to coke ovens
Inventor: ACKEREN PAUL VAN
IPC: C10B27/00
Filed: 1950-11-27
Abstract: 693,454. Hydraulic mains. KOPPERS GES., H. Nov. 27, 1950, No. 29000/50. Class 55(ii) Liquid is withdrawn from the hydraulic main 3 of a coke-oven via a receptacle 6, line 7, and pump 8 and delivered to the foul gas main 10 by a line 9, the delivery line 9 and the suction line 7 of the pump being interconnected through lines 27 and 16 and a device 15 which comprises a non-return valve 20 arranged in a housing 30 and which opens when there is no liquid in the hydraulic main and prevents the pump drawing in gas. A storage vessel 12 for excess liquor may be provided which is connected to the housing 30 of the device 15 by a line 14 and to the free space in the receptacle 6 by a line 13. In a modified arrangement the device 15 and storage vessel 12 are omitted and the pump 8 has a lifting capacity such that no liquor is lifted when the head exceeds a predetermined value, this value being such that the suction pipe of the pump is always sealed.
Patent GB-1190755-A (GB)
Title: Hydraulic Turbo-couplings
Inventor: JAMES WALTER HUGH KNIGHT
IPC: F16D33/10
Filed: 1966-06-28
Abstract: 1,190,755. Hydrodynamic couplings. FLUIDRIVE ENG. CO. Ltd. 27 June, 1967 [28 June, 1966], No. 29027/66. Heading F2C. In an hydraulic turbo coupling having quickemptying valves 18 maintained closed by liquid supplied to the back of the valves by way of the axis of the coupling and control conduits 17 in the impeller, liquid is supplied to the control conduits only from the radially inner part of a bore extending along the coupling axis. As shown the runner shaft has a bore 6 through which passes a tube 11 through which control liquid is supplied to a chamber 16 open to the control conduits 17. The chamber 16 is separated from the bore 6 by a dam 15, and the coupling is filled by liquid supplied through the bore 6 under the control of the valve 10. A valve 14 controls the control liquid supplied through the tube 11. A light cooling circulation of oil may be maintained through the bore 6 and the coupling when the valves 18 are opened to empty the coupling. In a modification the tube 11 is dispensed with, the dam being formed with a central Venturi-like nozzle providing access to the chamber 16. This arrangement may be further modified by providing a tube through the bore 6 to supply a small cooling flow to the coupling when empty, the tube terminating in feed pipes which discharge into the working circuit. Specification 470,056 is referred to.
Patent GB-534715-A (GB)
Title: Improvements in or relating to copper clad wire and methods of forming the same
IPC: C25D5/48
Filed: 1939-10-31
Abstract: 534,715. Wire: electrolysis. NATIONAL STANDARD CO. Oct. 31, 1939, No. 29069. Convention date, Nov. 1, 1938. Drawings to Specification. [Class 83 (ii)] [Also in Group XXXVI] A copper clad wire consists of a ferrous core with continuous coating of copper, the copper being built up of layers of different crystal sizes. The core blank may consist of a high carbon steel wire containing 0.65 per cent. of carbon, 0.8 per cent. of manganese, 0.015 per cent. of phosphorus, 0.025 per cent. of sulphur, and 0.095 per cent. of silicon and of diameter between 0.09 and 0.15 inches, preferably 0.119 inch. After drawing the coated wire the core should be below 0.06 inches, preferably 0.045 inches diameter and the coating from 1 to 3 thousandths of an inch. The core is first scraped with steel wool &c. then run through a 32 per cent. HCl bath for 1 minutes and then wiped with rags. washed with water and again dried and then treated for a minute at 180F. with an alkaline solution of a prosphate containing two ozs. to the gallon. After washing the core is run into a copper cyanide bath free from hypo and containing 48 grams per litre of copper, and 25 grams per litre of free cyanide. With current at 30 amps per sq. ft. and in 5 minutes at 150F. a layer of 0.0008 inches of copper is deposited. After washing in cold water and rinsing in hot water the wire is then washed in sodium cyanide, 3 ozs. to the gallon, at 150F. then in water, and is then treated with HCl, washed in water and passed into an acid copper plating bath containing 55-60 grams per litre of copper and 75 of sulphuric acid. At 110F. and with current density of 225 amps per sq. ft. in ¥-1 mins. 0.0005 inch of copper is deposited. The wire is then again submitted to treatment as in the first step but remains in the copper cyanide bath for 1 minute to deposit a layer of 0.0001 inch of copper. It is then again treated as in the second step but remains in the acid copper plating bath for 38 minutes to deposit a layer of 0.0151 inch copper. Copper from a cyanide bath is stated to be normally in fine crystals and from acid solution in large crystals. In the process above described the first acid coating has crystals of smaller size than normal and the second cyanide coating has crystals of larger size than normal so that the crystals in the initial layer are small, those in the outer layer large, and between these layers is a bonding copper zone having crystals of intermediate size. If only two coatings are applied the thickness of the second coating may be 0.000375 to 0.00075 and after coating the wire is drawn in three or four passes through dies of steel or copper or of the material sold under the Registered Trade Mark " Carboloy." It is finally hot tinned at 500F. The wire has a tensile strength of between 245,000 and 270,0001bs. per square inch and a resistance of 16.5 to 17.5 ohms per 1,000 feet.
Patent GB-491630-A (GB)
Title: Improvements in and relating to pipe couplings
IPC: F16L29/04
Filed: 1937-10-25
Abstract: 491,630. Valves. ROTADISK APPARATEBAU-GES. Oct. 25, 1937, No. 29130. Convention date, Jan. 26. [Class 135] [Also in Group XXVIII] In a pipe coupling having a spring-actuated valve in each pipe end, one of the valves being arranged to surround its seat, each valve is held off its seat when the pipes are coupled by the member carrying the seat of the other valve. The spigot 1 has an extension 12 carrying a tubular valve member 17 which is held by a spring 18 on a conical seat 15. A ring 24 secured in the socket has a seat 25 for the valve 26 and a packing ring 23 against which bears a shoulder of valve 17. As the spigot is pushed in by the coupling nut 5 the valve 17 is retained by the ring 24, the extension 12 carrying its seat 15 advances, raising the valve 26. When the valve 26 is open its seating surface and the seat 15 are in alignment. The valve 26 is guided by a ported tubular extension 27. A ball valve may replace the valve 26.
Patent GB-143800-A (GB)
Title: Improvements in and relating to milk churns
IPC: A01J15/06
Filed: 1919-11-24
Abstract: 143,800. Delort, J. Nov. 24, 1919. Stationary batch mixers with rotary stirrers.- A churn comprises a casing 1 fitted with a spindle 2 carrying blades 9, 10 each of which is formed of two pieces 11, 12 of wood with the extremities 16, 17 shaped to form a channel. The spindle rests at its ends on blocks 3, 5 and is held in position by a latch 6 having a hook 7 to engage a groove 8 in the spindle. On raising the latch, the spindle can be withdrawn. The pieces 11, 12 of the blades are connected by boards or bridges 18, 19 screwed together. The blades have slots or openings and are arranged at right-angles on the spindle. The casing is preferably of cylindrical form, with its length about six-sevenths of its diameter. A large square opening 20 at the top of the casing 'is provided with a frame 21 to support a mirror 22 which is fitted with a rubber edging 23 and with a button-like device 24 to enable it to be easily removed.
Patent GB-770216-A (GB)
Title: Sprung front forks for motor vehicles
IPC: B62K25/16
Filed: 1954-10-11
Abstract: 770,216. Spring forks for motor-cycles. VICTORIA-WERKE AKT.-GES. Oct. 11, 1954 [Oct. 10, 1953], No. 29249/54. Class 136(3). In a motor-cycle sprung front wheel fork having a main casing formed from two struts 1, 2 which surround the fork prongs 16, 17 and which are brought together at the upper end to form a head housing 3 accommodating the spring suspension, the housing 3 has at the front a fitting surface 4 for the head lamp casing 5 and at the rear outside the main casing the steering head 9 is pivotally mounted between supporting elements 7, 8 which enable the steering head to be releasably secured to the casing, and the lower element 8 supports the spring suspension. Rocking levers 18, 19 are connected to the lower ends of the fork prongs 16, 17. The hollow struts 1, 2 are made U- shaped in cross-section and are held together by transverse members 6 of U-section. The spring suspension consists of bushings 11, 12 which are displaceable relatively to one another and which house a tension spring 13. The fork prongs 16, 17 are secured to the outer bushing 12 with the interposition of a rubber ring 14 acting as a thrust spring and serving to compensate for turning movements caused by the lower pivoted levers 18, 19. The spring bushes 11, 12 may operate as an air damping means. The base 10 of the inner bushing 11 is formed with apertures 21. A diaphragm 20, Fig. 7, bears on the base 10 and is retained in position by a spring ring 23 held by a bolt 22.
Patent GB-703539-A (GB)
Title: Improvements in buckles
Inventor: WOOD HERBERT HOWARD
IPC: A44B11/24
Filed: 1952-11-20
Abstract: 703,539. Buckles. WALKER, Ltd., T. Dec. 5, 1952 [Nov. 20, 1952], No. 29307/52. Class 43 A prong - type buckle comprises a frame having the outer transverse member in the form of a sleeve integral with the sides of the frame and having a notch to house the free end of the hinged prong so that the letter can lie flush with the sleeve. As shown the sides 3, 3 of a single sheet metal blank, Fig. 8, are bent up at rightangles to the plate 6 and then a front extension of the plate 6 is curled over rearwardly so that its edge comes into contact with the rear end of the plate 6 to complete the sleeve 2. The blank is apertured as at 5 to constitute the notch 5, Fig. 1, for receiving the tip of the prong 1. In a modification, the sleeve 2 is formed by an extension at the inner side of the plate 6 being folded over forwardly to form the sleeve.
Patent GB-337151-A (GB)
Title: Improvements in or relating to combined sound and picture films
IPC: G03B31/06
Filed: 1929-09-27
Abstract: 337,151. Prisner, S., and Wender, E. Sept. 27, 1929. Record, combined phonographic and kinematographic.-The sound record is in the form of a trace consisting of a plurality of substantially parallel lines X, X, which are arranged transversely to the length of the film and are spaced apart in order to provide spaces for the interposition of kinematograph pictures P. If desired, the transverse sound-trace lines and the pictures P may alternate. In reproducing from the film, the slotted rotary drum employed in Specification 332,615 may be arranged with its axis inclined, as shown in dotted lines in the Figure, so that one end of the spiral slot is over the beginning of one transverse line at the instant the other end is over the end of the preceding transverse line. The drum may, however, be replaced by a disc and spiral slot.