baber/WOPTO huggingface dataset:
Patent GB-936284-A (GB)
Title: Improvements in or relating to crimping synthetic thermoplastic yarns
Inventor: JENKINS DONALD GLYN
IPC: D02G1/02
Filed: 1961-05-19
Abstract: 936,284. Finishing yarns; roller arrangements. BRITISH NYLON SPINNERS Ltd. May 1, 1962 [May 19, 1961], No. 18251/61. Classes 120 (2) and 120 (3). In a crimping process, drawn or undrawn synthetic thermoplastic, e.g. nylon, polyester, polyacrylonitrile, polypropylene, polyethylene, multifilament yarn is squeezed between the nip of two cylindrical rollers, having smooth, e.g. polished or matt, surfaces of material harder than the material of the yarn, whilst the yarn is in a low-twisted (less than 10 turns per inch) state and at a temperature above 100‹ C. Undrawn yarn may also be stretched at the nip of the rollers. The yarn is then tensioned and back-twisted to zero twist or beyond to develop the crimp which may be enhanced by heating the yarn before and/or after backtwisting. Heat treatment or setting may be effected by passage of yarn through a radiant heater or contact with a heated metal plate: the same heating appliance may be used for treating the yarn both before and after crimping. The rollers may be heated and at least one is driven. The yarn product is free from torque and the crimp of the filaments is of regular " zig-zag " form with rounded apices. The crimp is planar over short lengths with adjacent short lengths differing, e.g. alternating, in respect of their planar orientation. The filaments in the supply yarn may be circular or non-circular in cross-section, but the former tend to be deformed by the crimping. Several yarn packages may feed the nip of one pair of rollers and crimped yarn may be wound separately or collectively into one or more hanks or packages or coiled into a container, in which forms the yarn may be heated, e.g. by steam. Three or more crimped and wound yarns may be plied, e.g. with doubling twist of two or three turns per inch in a direction opposed to the original twist in the yarns. In the apparatus shown in Fig. 1, yarn 1 drawn from a package 3 is guided around a tensioner 7, which imparts constant tension for the subsequent heating applied by contact of the travelling yarn with the curved surface of an electrically heated plate 9, the temperature of which is automatically maintained constant by a controller 11. The hot yarn is squeezed between driven nip-rolls 15, adjustably loaded by a press 17, and emerges as a flat ribbon which is tensioned, back-twisted and wound on a package 23 by ring-spinning apparatus. In a modification, Fig. 2, comprising rollers 35 and 37, blocks 39 bearing on the axle of the top roller are loaded by engagement of bifurcated rods 41 with arms 43 pivoted at 51 and weighted and counterweighted by weights 47 and 49. Hooks, as at 53, support the axle when roller 35 is removed.
Patent GB-391642-A (GB)
Title: Improvements in hair waving appliances
IPC: A45D2/24
Filed: 1932-06-29
Abstract: 391,642. Hair-waving appliances. NAPIERALA, H. M., 49, Cross Deep Gardens, Twickenham, Middlesex. June 29, 1932, No. 18341. [Class 131.] A hair-waver comprises a pair of members 1, 2 pivoted together at 3, the member 1 consisting of an open frame having a bent-up end 5 with which the free end of the member 2 engages, and the pivoted ends of the members being extended to form thumb-pieces 6 by means of which the waver is opened against the action of a spring 4 tending to urge the members into the closed position. The bent-up portion 5 may be constricted so that the free end of the member 2 is firmly held therein. In use, the waver is opened and the member 2 inserted beneath the hair, the waver being then closed so that the hair passes over the member 2 and between the sides of the member 1.
Patent GB-690502-A (GB)
Title: Improvements in lanterns for street lighting purposes
IPC: F21S8/08
Filed: 1950-07-22
Abstract: 690,502. Street lighting fittings. HOLOPHANE, Ltd., and ENGLISH, S. June 28. 1951 [July 22, 1950]. No. 18360/50. Classes 75(ii) and 75(iv) In a lantern for street lighting providing two downwardly inclined beams in substantially opposite directions part of the light directing means is in the form of a figure of revolution and is adjustable relative to the lantern about an axis normal to the plane of the beams so that as one beam is elevated the other is depressed to suit street gradients, whilst leaving the general appearance of the lantern unaltered. In the fitting shown the light directing means comprise a refractor having longitudinal prisms and formed by two conical frusta, 1, 2 held with the larger end 6 of one in abutment with a socketed flange 5 on the larger end of the other by three rods 15 which extend through the frusta and are secured by nuts 16 to metal rings 9, 10 fitted against the smaller flanged ends of the frusta. The ends of the rods pass through arcuate slots 18 in castings 13, 14 supported from an arm 27 and are secured to the castings by nuts 19, the slots permitting rotational adjustment of the refractor. One of two lugs 21 on the refractor coact with a graduated plate 22 on the casting 13 to provide an indication of the tilt of the main beams. The casting 14 is hollow and carries a holder 24 for an elongated lamp 25 which is disposed along the axis of the refractor. Removable end caps 28, 29 are provided on the castings. In a modification the metal rings are omitted and the small ends of the frusta seat in recesses in the castings and the lugs 21 fit in arcuate slots in the castings. The two frusta may be replaced by a single cylinder. In a further modification the refractor is of tapering form closed at its smaller end. Its open larger end has an outwardly directed lip which is retained with freedom to rotate in an annular recess in a metal ring by a washer secured to the ring. by screws. A lug on the lip coacts with a slot in the metal ring to limit the rotation of the refractor. The metal ring is secured to a casting having a socket for a supporting arm and carrying a lampholder. A curved reflector is supported from the casting inside the refractor.
Patent GB-416162-A (GB)
Title: Improvements in and relating to operating systems for windshield wipers and other pneumatically operated automobile accessories
IPC: B60S1/10
Filed: 1933-06-28
Abstract: 416,162. Windscreen-cleaners. TRICO PRODUCTS CORPORATION, 817, Washing- ton Street, Buffalo, New York, U.S.A. June 28, 1933, No. 18390. Convention date, May 4. [Class 138 (i).] An operating system for windscreen - wipers and other pneumatically operated automatic accessories operated by pressure differential at least in part due to the exhaust system of the engine is characterized by the feature that the means for inducing the sub-atmospheric pressure due to the exhaust system forms part of the muffler assembly of the exhaust. A Venturi like device in the exhaust for producing reduced pressure is provided with a byepass for any excess exhaust. In the construction shown, the windscreen-cleaner 10, Fig. 1, is connected by a pipe 12 to a T-piece 13, one branch 14 of which communicates with the intake manifold of the internal-combustion engine, the other branch 16 extending to a portion of the engine exhaust. A valve 18, Fig. 3, is provided between the branch 14 and a vacuum tank 17 and normally seats to close the port leading to the tank, so that when the suction in the tank is greater than that in the intake manifold the valve is closed and the wiper is under the influence of the suction in the tank. The tank forms part of a muffler for the exhaust gases from the engine. The exhaust pipe 19, Fig. 2, communicates with a passage 20 having a restricted portion 21 surrounded by a sleeve 23. Openings 24, 25 are provided at the restriction, and the sleeve is also provided with an opening 26 leading to the pipe 16. A valve 28 normally seating away from the pipe 16 is interposed between the pipe and the wiper. Due to the flow of gases at the restriction 21, suction is created in the sleeve 23, which if greater than that in the intake manifold, causes valve 28 to open and valve 18 to close and acts to operate the wiper. When the suction in the intake manifold is the greater valve 18 is opened and valve 28 is closed, the wiper being thus under the influence of the greater suction. Part of the exhaust gases through the passage 20 are byepassed by way of passages 29, 30. Specification 321,715, [Class 138 {i)], is referred to.
Patent GB-626285-A (GB)
Title: Improvements in or relating to altitude control systems for aircraft
IPC: G05D1/06
Filed: 1942-12-28
Abstract: 626,285. Fluid-pressure servomotor control systems. STEVENS, A. H. (Sperry Gyroscope Co., Inc.). Dec. 28, 1942, No. 18408. [Class 135] [Also in Groups XXXV and XXXVII] An altitude control system for aircraft comprises a two-part controller having a primary element actuated by an altimeter and a secondary element supplying altitude control signals in response to relative movement between primary and secondary elements, means being also provided to move the secondary element continuously to effect a controlled glide or climb of the craft. A fluid pressure system is shown in Fig. 5. An altimeter 345 operates a cut-off device 343 co-operating with ports 328, 330 in a housing 327 whereby balanced pressure from a pipe.347 is normally supplied to jets 349, 351 of a reversible motor 353. When a change occurs in altitude the motor operates through a differential 357 a worm 359 which rotates the housing 363 of a pick-off on a pitch stabilizer whereby the normal balance of sub-atmospheric pressure on opposite sides of a diaphragm device 379 is disturbed and a servomotor 383 operates a control surface 385 until normal altitude is restored; follow-up connections 391 to the differential 357 are provided. Controls 393, 315 are provided equivalent to controls 143, 169, Fig. 1. for setting in a given altitude or rate of change of altitude respectively. The variable-speed reversible drive 311 comprises a disc driven at constant speed driving through a diametrically adjustable ball and cylinder which is driven at the desired speed. This drive may be replaced by a variable-speed motor. Specification 626,288 is referred to.
Patent GB-1001399-A (GB)
Title: Improvements in and relating to dynamo-electric machines
IPC: G01R31/34
Filed: 1964-05-04
Abstract: 1,001,399. Protective arrangements. LLOYD DYNAMOWERKE G.m.b.H. May 4, 1964 [May 3, 1963], No. 18424/64. Heading H2K. In a dynamo-electric machine having a rotating assembly comprising a field winding 10, a rectifier 12 and an A.C. winding 15 supplying the winding 10 through the rectifier 12, a detector 19 responds to changes induced in a stationary winding 18 due to a defect in the rotating assembly. As shown the winding 18 may be damping winding or turn mounted on a pole 16 of the field assembly for the three-phase winding 15 and the detector 19 is a current transformer supplying an alarm or signal circuit. Reference is made to the detector responding to changes in voltage current, frequency or harmonic content.
Patent GB-897518-A (GB)
Title: Manufacture of polyethylene film
IPC: B29C48/10
Filed: 1960-05-25
Abstract: Polyethylene is extruded through an annular orifice to form a tube, the exterior of which is heated, as it emerges from the die and before it is expanded to form a tubular film, to a temperature greater than the extrusion temperature but less than the degradation temperature of the extrudate, the said temperature being at least 180 DEG C.  The temperature used is preferably not above 360 DEG C., and is desirably 300 DEG C.  Apparatus as shown (Fig. 1) comprises a hollow, cylindrical heating chamber 1 containing a heating coil 2 and located in a position 20, Figs. 2 and 3, adjacent to the die 8, 9 the coil being spaced from the tube and maintained at between 200 DEG and 600 DEG C.  In Fig. 2, the heating cylinder is applied in an extrusion process utilizing an air ring 17 for setting the film.  In Fig. 3, the heating cylinder is applied in an extrusion process utilizing a cooled internal mandrel 30 to set the film.  The heating cylinder may be replaced by a battery of infra-red lamps symmetrically disposed about the axis of the die and directed on the polyethylene as it emerges, and the process of the invention may be applied to downward, as well as upward, extrusion.  The process enhances the gloss of the tubular film.  U.S.A.  Specification 2,461,975 is referred to. <PICT:0897518/IV (a)/1> <PICT:0897518/IV (a)/2> <PICT:0897518/IV (a)/3>
Patent GB-879388-A (GB)
Title: Method and apparatus for drying shell-type refractory molds
IPC: B22C1/16
Filed: 1959-05-29
Abstract: 879,388. Making shell moulds. MELLEN, E. J. May 29, 1959 [June 17, 1958], No. 18433/59. Class 87(2). A refractory mould for casting metal is made by dipping a destructible pattern of e.g. wax, polystyrene or acrylic or methacrylic resins in a slurry, removing the pattern from the slurry and drying it in an air stream which has .a wet bulb temperature of room temperature and a dry bulb temperature not less than 5‹F. above room temperature, and then after drying, repeating the process until several layers have been built up. Successive coats may be dried at increased dry bulb temperatures e.g. 5‹F. per layer. The layers (except the last) may be dusted with refractory particles, e.g. silicon oxide glass. The slurry may be made from quartz, alumina, silicon carbide, graphite, aluminium silicate, flint, zirconium silicate, and silicon oxide glass, with colloidal silica or ethyl silicate as a binder, methyl cellulose as a thickener, and water or alcohol.
Patent GB-332366-A (GB)
Title: Process for gasifying fuels in a molten-ash type gas-producer and for simultaneously treating ores or residues
IPC: C10J3/08
Filed: 1929-06-15
Abstract: 332,366. Philipon, H. J. F. June 15, 1929. Producers.-In an ash-melting producer, the proportion of fixed carbon to the weight of the charge is about 30 per cent, the slag being formed by high ash content fuels or by additions of substances having a base of silica, alumina or lime, a fusible slag being obtained having an SiO2/CaO ratio of 0.9. Variations of the composition of the charge may be accommodated by varying the blast temperature between 400‹ and 800‹ C. Low grade cast iron may be added and transformed into silicious cast iron free from sulphur. Iron ores may be added, either mixed with the fuel, or formed into briquettes, the proportion of iron being always 50 per cent lower than that in a blast furnace and less than 15 per cent of the total charge. Towns refuse may be employed. High ash fuels may have limestone or lime added to produce a cement slag. Phosphate of lime may be used and steam added to give phosphoric acid and hydrogen, and if ammonia is introduced a yield of ammonium phosphate is obtained. Ores containing zinc lead, tin, potash, or soda may be employed, and the oxides of the volatile metals collected, and when sulphide ores are employed the sulphur is retained by the iron in the charge. Copper or precious metals if present will be collected as a. matter at the base of the producer. Specifications 194,648 and 196,599 are referred to.
Patent GB-986717-A (GB)
Title: Motor vehicle suspension
Inventor: HAMILTON WILLIAM ALEXANDER
IPC: B60G11/04
Filed: 1963-05-09
Abstract: 986,717. Springs. VAUXHALL MOTORS Ltd. March 12, 1964 [May 9, 1963], No. 18459/63. Heading F2S. [Also in Division B7] A semi-elliptic spring for a motor vehicle rigid axle suspension is bowed as seen in plan view. As shown, rigid axles 28, Figs. 2 and 3, are connected to springs 24, 26 and 48, 50 respectively.
Patent GB-1374679-A (GB)
Title: Well flow controlling method and apparatus
IPC: E21B33/10
Filed: 1972-04-21
Abstract: 1374679 Wells &c OTIS ENG CORP 21 April 1972 [28 April 1971] 18541/72 Heading E1F In the event of a hazardous condition or disaster occurring the flow from a producing formation F is cut-off by allowing a flow conductor T to fall to bring an imperforate length A of the conductor into engagement with packers P 1 ,P 2 , set below and above the formation. The conductor may fall as a result of the disaster or the fall may follow the blasting of the well head. The fallen conductor is shown as being supported by the bottom of the well, but it may be supported by a stop on the conductor adjacent the imperforate length engaging the upper packer. Should the conductor be severed and the imperforate part fall through the upper packer, the flow is cut-off by a valve V.
Patent GB-998693-A (GB)
Title: Filter element end cap
Inventor: CUTLER MAC C
IPC: B01D29/11
Filed: 1964-05-05
Abstract: 998,693. Moulding filters. FILTERS Inc. May 5, 1964, No. 18652/64. Heading B5A. [Also in Division B1] A mould 15, having a centrally fitting die member 30 (Fig. 3), forms an annular mould cavity. Member 30 has threads 36 and a shoulder 34 to support a rubber gasket 35. Polyester resin is poured into the cavity (Fig. 4), and a hollow cylindrical filter member 11 is inserted in the liquid resin. The resin hardens, forming an end cap 43, bonded to the member 11, and the filter gasket and end cap are unscrewed from member 30. Mould 15 and member 30 are steel. Member 11 is resinbonded fibreglass. The filter member may be of layered construction, and an end closure cap may be formed in a similar fashion to cap 43 at the other end of the filter member (Fig. 6, not shown).
Patent GB-810714-A (GB)
Title: Improvements in date indicating mechanism for timekeepers
IPC: G04B19/253
Filed: 1957-06-13
Abstract: 810,714. Date indicators. COMPAGNIE HORLOGERE ULTRA. June 13, 1957 [June 15, 1956], No. 18686/57. Class 106 (4). Date-indicating mechanism in a watch comprises a date disc 8 with numerals spaced round its periphery and a toothed wheel 4 with alternate long and short teeth 7, 6 so arranged that all its teeth can be engaged by a projection 3 rotatable with the hour hand but only its larger teeth engage gear teeth on the disc 8 whereby the disc is rotated one date interval for every two revolutions of the hour hand. The disc 8 is in the form of an annulus rotatable in a peripheral bearing 9, has an internal set of thirty-one gear teeth and is located in successive positions by a latch member 10 resiliently urged toward the gear teeth. A pad 15 retains the wheel 4 in its bearings and exerts a moderate frictional drag.
Patent GB-1408095-A (GB)
Title: Fluid end for a plunger pump
IPC: F04B53/16
Filed: 1973-04-18
Abstract: 1408095 Reciprocating pumps EXXON PRODUCTION RESEARCH CO 18 April 1973 18692/72 Heading F1A [Also in Division F2] A plunger pump, e.g. for drilling mud, has quickly detachable inlet and outlet valve assemblies 12, 13 attached to a connection member 11 by bolted segmented collars 24, 25, self-energizing sealing rings 42, 45 being provided. Member 11 is attached to the pump cylinder housing 10 by a bolted, segmented collar 23, Fig. 2 (not shown), and has connecting passages 21, 22 less than half the diameter of cylinder bore 16. Sealing rings 27, 42, 45 and 53 are of metal, e.g. steel, and have lips (37, 38), Fig. 3 (not shown), the contact pressure of which increases with increasing hydraulic pressure. Each valve housing 12, 13 comprises two sections 50, 51 or 61, 62 clamped by collars 52, 63 and containing a spring-loaded valve member 58 engaging a seat 57.
Patent GB-582329-A (GB)
Title: Improvements in or relating to gyroscopic systems
IPC: G01C19/38
Filed: 1942-05-16
Abstract: 582,329. Gyroscopic apparatus. BARNES, J. W. May 16, 1942, No. 18712/43. Divided out of 581,891. [Class 97 (iii)] In a gyroscopic system wherein the spin axis of a gyroscope defines a datum line having a predetermined orientation relative to the earth's axis, the gyroscope is fast with, or coupled to, a magnet whose polar axis is vertical when the spin axis is brought to the predetermined orientation, and upon which the earth's field acts to provide a continuous torque whereby the spin axis is caused to undergo a slow continuous precession to follow the movement of the earth. The magnet may constitute the spindle of the gyroscope rotor, or may be incorporated in the gyroscope frame, or may be carried on a universal joint and be linked to the gyroscope. Specification 581,891 is referred to.
Patent GB-302872-A (GB)
Title: Improvements in apparatus for delivering measured quantities of liquids
IPC: G01F11/44
Filed: 1928-06-28
Abstract: 302,872. S. I. A. M., Ltd., and Guermont, M. E. June 28, 1928. Fixed-chamber apparatus with automatic control of flow.-In discharge mechanism for petrol pumps, &c. the delivery valve 20 from a measuring chamber 3 is unlocked by the flow of liquid down the overflow pipe 2. The liquid acts on a butterfly valve 1 to raise a weighted arm 4 carrying a trip 6 which releases a lug 7 on a rod 8 having a stop 9 which is pulled by a spring 29 out of engagement with a shoulder 10 on a rod 11; this enables the delivery valve 20 to be opened by moving a lever 13 against a spring 19; the rod 11, being connected by a pin 12, is thus moved downwards and the stop 9 is moved further to the right by a sloping face 15 until at the end of the motion a spring 18 forces the stop to the other side of the face 15. On the return of the lever 13 the stop is moved back by the face until the sloping faces of the trip 6 and lug 7 engage and force the stop under the shoulder 10 which locks the lever 13.
Patent GB-1094223-A (GB)
Title: Process for the preparation of 1,3-dimethyl-4, isopropylbenzol and 1,3-dimethyl-4,6-diisoproylbenzol
Inventor: BINDER DR-ING HANS
IPC: B01J19/02
Filed: 1965-05-04
Abstract: Meta-xylene is alkylated with propylene in the presence of aluminium chloride and a phenol-formaldehyde resin to form 1,3-dimethyl-4-isopropyl- and 1,3-dimethyl-4,6-diisopropylbenzenes with some 5-isopropyl and 2,5-, 4,5- and 2,4-diisopropyl isomers. For each mol. of xylene there is used 0.4-3 mol. of propene and 0.02-0.2 mol. of aluminium chloride with 40-1000% weight based on aluminium chloride of the resin which may be applied as a coating on the reactor walls.  Reaction is effected at -30 DEG  to 80 DEG  C. for 1/4 -6 hours.
Patent GB-983792-A (GB)
Title: Improvements in and relating to the production of carbonyls
Inventor: MCGEE MICHAEL ANTHONY
IPC: C01G55/00
Filed: 1962-05-16
Abstract: A ruthenium carbonyl, probably triruthenium dodecacarbonyl Ru3(CO)12, is produced by treating an organic acid salt of ruthenium in a liquid medium with CO.  Particular ruthenium salts are the stearate, acetate, oleate or naphthenate. Carbon monoxide alone or together with N2 or H2 may be used; in particular, equal volumes of CO and HC are proposed. The liquid medium may suitably be a hydrocarbon solvent, e.g. cyclohexane, or a halogenated hydrocarbon, an ether or an ester, or it may consist partially or, less desirably, entirely of water. Reaction is effected at from room temperature to 300 DEG , preferably at between 50 DEG  and 250 DEG C., and under 1-3000 atmospheres pressures, preferably 10-300 atmos.  The product may be used as a catalyst in the reaction of olefines with CO+H2 or with CO+ H2O.  In an example, a solution of ruthenium stearate in cyclohexane was heated for 2 hours at 200 DEG C. under a pressure of 240 atmosphere of a gas consisting of equal volumes of CO and H2.  The product, initially a colourless solution was maintained under N2 at 20 DEG  C. until the colourless solution turned yellow, then orange and finally formed orange-red crystals of Ru3(CO)12, which were filtered, washed, dried and recrystallized from petroleum ether.ALSO:A ruthenium carbonyl, which is probably triruthenium dodecacarbonyl Ru3(CO)12 (see Division C1), is used as catalyst in the reaction of olefines with carbon monoxide and (i) H2, (ii) H2O at elevated temperature and pressure to give (i) aldehydes, (ii) alcohols.
Patent GB-850854-A (GB)
Title: Method of obtaining non-carcinogenic cigarette papers
Filed: 1958-06-13
Abstract: 850,854. Cigarette paper. MILLOUX, M. C. A. June 13, 1958, No. 18915/58. Class 96. Plain or creped cigarette paper is impregnated e.g. by roller application or by spraying, with a dilute solution of extracts of chlorophyll vegetable matter; 10 to 13 mgs. of dry extract per square metre of the paper may be applied as a solution of 7 parts of extracts per 1000 of ether. With the extracts may be included vegetable waxes, vitamins, α- and #-chlorophyll, and magnesium chloride.