baber/WOPTO huggingface dataset:
Patent GB-791960-A (GB)
Title: Treatment of fabrics containing crimped yarn
Inventor: POWNALL LESLIE
IPC: D06M23/06
Filed: 1954-12-04
Abstract: In a process for dyeing and finishing fabric containing a substantial proportion of crimped yarns of a synthetic linear polymer or polymers, e.g. nylon, the fabric is steamed at superatmospheric pressure while in a relaxed condition, dyed, and finished by heat treatment at a lower temperature than that of the steaming.  In an example, half-hose, knitted from nylon yarn crimped at 300-400 DEG F. as described in Specification 786,420, [Group IX], are steamed at 25 pounds per square inch while lying relaxed on a perforated plate. They are then scoured and dyed in the usual manner, and finally boarded in a flat bed press at a lower temperature than the steam treatment, e.g. about 230 DEG  F. The steam treatment is stated to preserve the elasticity of the crimped yarn better than the usual pre-boarding.
Patent GB-1071620-A (GB)
Title: Fluid control valves
IPC: F16K11/08
Filed: 1965-08-17
Abstract: 1,071,620. Valves. ALFA-LAVAL A.B. Aug. 17, 1965 [Sept. 3, 1964], No. 35195/65. Heading F2V. A valve comprises a sleeve-shaped resilient flexible membrane 11 forming between itself and a housing a flow passage between ports 2 and 3, and a ring-shaped member 9 disposed internally of the membrane and movable laterally to close either port 2 or 3. The member 9 is moved by a cam 20, guided on a rod 5, and actuated by a piston 16 supplied with fluid through passageways 26, 28 or 25, 27. A separate piston and cam can be used for each port. The member 9 may be divided into two parts.
Patent GB-947277-A (GB)
Title: Package for stockings hosiery and similar articles
IPC: B29C41/08
Filed: 1962-09-17
Abstract: 947,277. Packages. SOC. DES MAGASINS PRISUNIC. Sept. 17, 1962 [Oct. 6, 1961], No. 35270/62. Heading B8C. A package for stockings comprises a sheet of paper or cardboard folded to provide two flaps a, a 1 , an aperture c in the flap a 1  revealing a portion of a pair of stockings b which are wrapped round the flap a, and an enclosing envelope, all or part of which is made of transparent plastics material so that the stockings b and part of the flap a 1  are visible. The visible portion of the flap a 1  is used for printing.
Patent GB-942123-A (GB)
Title: Fluid-pressure servoactuator
Inventor: JR AURELIUS CHAVES
IPC: F15B9/17
Filed: 1962-09-17
Abstract: 942,123. Fluid-pressure servomotor control systems. MOOG SERVOCONTROLS Inc. Sept. 17, 1962, No. 35292/62. Heading G3P. A hydraulic servopiston 12 is controlled by a spool valve 21 which is centred by springs 63, 64 and displaced by variations of pressure in chambers 42, 44 occasioned by movement of a flapper 50 relative to nozzles 35, 36. The flapper is carried by a flexure tube 54 and has a portion passing between permanent magnetic pole pieces 60 so that it is caused to be deflected by energization of a coil 62. The flapper is subject to negative feedback through a cam 65 movable by the servopiston and a follower 66 engaging a cage 68 containing springs 74, 75 and biased by a spring 85. In a modification, the cage 68 is omitted and the flapper is engaged on its upper side by a single, adjustable spring and on its lower side by a spring which is engaged by a cam follower carried by a leaf spring. Further modifications referred to include a flapper arrangement as in Specification 845, 109, the control of gaseous instead of hydraulic fluid by the flapper, and arrangements in which a mechanical feedback between the spool valve and flapper are provided, and in which the valve spool is subject to load reaction feedback which may act through a high frequency pass arrangement. A three-stage control valve arrangement is also referred to.
Patent GB-1017286-A (GB)
Title: The supply of power to electrical apparatus which includes at least one transistor circuit
Inventor: SEARLE LAWRENCE EDSEL
IPC: H03F3/19
Filed: 1963-09-06
Abstract: 1,017,286. Transistor amplifiers and frequency changers; R.F. couplings. TRANSPEATERS Ltd. Sept. 6, 1963, No. 35359/63. Headings H3T and H4A. In a transistor amplifier or frequency changer, the signal output current of the transistor flows through the primary winding of a transformer having a secondary winding directly connected to an output terminal and also directly connected to the primary winding so that the D.C. supply for the transistor may be coupled to the transistor through the output terminal. The circuit may also be arranged so that there is a direct connection between input and output terminals so that when a plurality of such amplifiers are connected in cascade the D.C. supply for all the amplifiers is coupled thereto via the output terminal of the last amplifier of the cascade. Fig. 3 shows such a circuit in which the D.C. for the transistor applied through output terminal 9 appears also at input terminal 10. In order to increase the decoupling between input and output circuits a further capacitor 12 may be provided together with means inserted at 13, such as an inductor or resonant circuit presenting an impedance to signal currents. Fig. 4 shows a modified circuit in which the input transformer having separate primary or secondary windings 3, 2 is replaced by a tapped inductor 16. This necessitates the provision of a blocking capacitor 17 and hence a further D.C. connection (not shown) between the emitter and the positive supply line. The output transformer may also be replaced by a similar tapped inductor, Figs. 5, 6, 7 (not shown). The amplifiers may be arranged to function as audio amplifiers or as radiofrequency amplifiers in which case the input and output transformers provide the inductors of parallel tuned circuits, Fig. 9A (not shown). R.F. couplings.-The circuits of the invention may be used in a system for supplying television and V.H.F. sound transmissions to a common feeder for use in a block of flats. As shown in Fig. 11, received radio-frequency transmissions are supplied via amplifiers 46a- 46d and frequency changer 46e to a unit 81, shown in greater detail in Fig. 9B, the directvoltage supply from 84 being coupled through unit 81 to the amplifiers and frequency changer. The amplifier outputs corresponding to each channel received are applied to different input terminals 54, Fig. 9B, of the unit 81, the combined transmissions appearing at output terminal 56 via respective series-tuned circuits 55, the power supply for circuits 46a-46e also appearing at terminals 54 being applied thereto through respective inductors 57 for a source connected to terminals 58, 59.
Patent GB-935245-A (GB)
Title: Improvements in or relating to apparatus for positioning a movable member
IPC: H02P7/18
Filed: 1959-10-20
Abstract: 935,245. Programmed electric control systems. REGIE NATIONAL DES USINES RENAULT. 'Oct. 20, 1959 [Oct. 22, 1958; June 16, 1959], No. 35514/59. Class 38 (6). In a system in which a motor positioning a body is controlled by the difference between numerical signals representing desired and actual positions of the body, differences between higher and lower significant figures of the signals cause coarse and fine corrections at high and low speeds respectively, the final direction of operation of the motor being always the same to avoid the effect of backlash. Fig. 6 shows a system in which a table 7 of a machine tool is adjusted to successive positions along one coordinate axis by a lead screw X driven by a motor 8 in accordance with a programme on a perforated tape 12. Digital signals from photocells 13 associated with the tape are first compared in an electronic computer 14 with digital signals from photo-cells 11 associated with a perforated disc 10 driven through 100/1 reduction gearing by motor 8 so that any difference is effective to cause operation of motor 8 until a position bearing a predetermined relative relationship to a position corresponding to the first two significant figures of the tape signal is reached. A perforated disc 9 directly driven by motor 8 is then substituted for disc 10 and a second adjustment, taking into account the last two significant figures of the tape signal, is obtained by operating motor 8 at a lower speed to miminize overshoot. Finally, overshoot is removed by reversing the motor and running it at a still lower speed to remove the overshoot. To avoid different effects of backlash the first adjustment is always made to the same side of the final position. A similar system may control positioning of the table about another co-ordinate axis. Modifications involving a greater or lesser number of adjustments are described.
Patent GB-362146-A (GB)
Title: Improvements in oil engines
IPC: F02B21/00
Filed: 1930-11-26
Abstract: 362,146. Oil engines. LANG, F., 41, Laimerstrasse, Munich, Germany. Nov. 26, 1930, No. 35638. [Classes 7 (ii) and 7 (iii).] In an oil engine, a com bustion chamber communicates through a throttled orifice or orifices with one or more sub. chambers a provided ir members constructed in the form of a thin removable cartridge and disposed either in the cylinder head or wall. These subchambers, which emit jets of nearly pure air during the expansion stroke, serve to clean the sparking terminals of an igniter, cool the fuel jets g or, when arranged tangentially, produces turbulence of the mixture in the combustion chamber. Means are provided for varying the effective capacity of the subchambers. As shown in Fig. 15, the cartridge shape member a is divided into compartments by a partition o having passages p controlled by a shutter r fixed to a spindle s rotated manually or by an arm t actuated by the governor or by a cam controlled by the valve gear. In a modification, the capacity of the subchamber is regulated by a plunger adjusted by a screw mechanism.
Patent GB-815756-A (GB)
Title: Method for coating surfaces and, particularly, metal surfaces
IPC: B32B15/08
Filed: 1955-12-12
Abstract: A method of casting a base with a film of polytetrafluoroethylene comprises producing anchoring cavities in the base which are smaller than 30 microns and then applying an aqueous-dispersion of polytetrafluoroethylene.  Numerous examples of treating various metals with acids are given.  Aluminium is treated with 10 per cent (concentration by weight) of hydrochloric acid for a duration varying with the temperature of the acid, at 75 DEG  C. it is treated for 8 minutes.  The aluminium is rinsed, dried and an aqueous dispersion of polytetrafluoroethylene is applied; it is then dried and fused. The application may be repeated to produce a greater thickness of polytetrafluoroethylene.  Each succeeding application may have a higher concentration.  It is necessary to treat annealed aluminium with the acid for a longer time or with the addition of nitric acid. For an aluminium alloy containing copper, magnesium and manganese the alloy is dipped in 1-5 per cent hydrofluoric acid, is washed, dipped in 40 per cent hydrochloric acid, then dipped in 40 per cent nitric acid.  Concentrated soda solution may be used instead of the hydrofluoric acid.  For an aluminium alloy with magnesium and manganese 10 per cent hydrochloric acid is applied. For aluminium or an aluminium alloy a sulpho-chromic solution containing sulphuric acid 50 gms., chromium trioxide 20 gms. and water 150 gms. is applied at 50-80 DEG  C. for 10 minutes.  Bronze is treated with 12 per cent nitric acid at 20 DEG  C. for 20 minutes. Copper is first covered with electrolytic zinc then 15 per cent hydrochloric acid is applied for 15 minutes at 20 DEG  C.  A stub steel containing chromium, carbon and vanadium is treated with 10 per cent nitric acid for 6 minutes at 20 DEG  C.  A steel containing carbon and manganese is treated with 10 per cent nitric acid for 10 minutes at 20 DEG  C. is brushed and treated again for 5 minutes. Half-cold-hardened low carbon steel containing manganese is treated with 10 per cent nitric acid for 12 minutes at 20 DEG  C. Siemens Martin steel containing carbon and manganese is treated with 10 per cent nitric acid for 8 minutes at 20 DEG  C., is brushed, then dipped again for 4 minutes. Aluminium is treated with the sulphochromic solution with hydrochloric acid added at 60 DEG  C. for a few minutes, then it is treated with the solution without the hydrochloric acid.  Enamelled iron and copper is treated with 15 per cent hydrofluoric acid at 20 DEG  C. for 25 minutes.
Patent GB-328662-A (GB)
Title: Improvements in or relating to devices for carrying heavy bodies on, and releasing them from, aircraft
IPC: B64D1/06
Filed: 1928-12-04
Abstract: 328,662. Whitehead Torpedo Co., Ltd., and Jones, A. E. Dec. 4, 1928. Hooks, slip, automatic-release. - Relates to devices comprising two pivoted hooks working in opposite directions and held in closed position by a rocking member situated between parts of the hooks. According to the invention, the rocking member 7 has a part 6 situated be-. tween upwards extensions of the hooks 1 and rocks about a hinge 8 in a plane transverse to the plane of movement of the hooks, and the arrangement is such that the part 6 retains the hooks closed for a considerable initial movement of the member 7, this preventing accidental release and enabling the initial movement of the member 7 to operate another member 15 to actuate further mechanism, for example the starting lever of a torpedo, before the release of such torpedo. This hook device is carried by a frame 2 hung from a Hooke's joint 3, which is connected by a band or rope 4 to a winch on the aircraft.
Patent GB-1031747-A (GB)
Title: Polyurethanes
Inventor: MERTEN RUDOLF
IPC: C08G18/50
Filed: 1963-09-11
Abstract: Polyols are prepared by reacting (n - 2) mols. of an ethylenically unsaturated compound with one mol. of ammonia, a hydrazine containing at least n hydrogen atoms attached to the hydrazino nitrogen atoms or an organic polyamine containing at least n hydrogen atoms attached to the amino nitrogen atoms (where n represents a whole number equal to at least 3), and further reacting the product with an alkylene oxide. Examples describe the preparation of polyols from ethylene diamine, acrylonitrile or methacrylonitrile and ethylene or propylene oxide; diethylene triamine, tetraethylene pentamine, hexamethylene diamine, 1,3-bis-(gamma-aminopropoxy)-2,2-dimethylpropane or toluylene-2,4-diamine, acrylonitrile and propylene oxide; hydrazine hydrate, acrylonitrile and propylene oxide; and ethylene diamine, methyl methacrylate, styrene, 2-vinyl pyridine or maleic anhydride and propylene oxide.ALSO:Polyurethanes are prepared by reacting a polyisocyanate with a polyol which has been obtained by reacting (n - 2) mols. of an ethylenically unsaturated compound with one mol. of ammonia, a hydrazine containing at least n hydrogen atoms attached to the hydrazino nitrogen atoms or an organic polyamine containing at least n hydrogen atoms attached to the amino nitrogen atoms (where n represents a whole number equal to at least 3), and further reacting the product with an alkylene oxide. The ethylenically unsaturated compound is preferably an unsaturated nitrile.  Prior to reaction the polyol may be admixed with another zerewitinoff active hydrogen compound. The polyol and polyisocyanate may also be mixed simultaneously or subsequently with a blowing agent to provide foamed polyurethane products.  Examples illustrate the use of diphenylmethane-4,41-diisocyanate as the polyisocyanate reactant.
Patent GB-789813-A (GB)
Title: Improvements in or relating to a method and an apparatus for manufacturing barbed wire
IPC: B21F25/00
Filed: 1954-12-10
Abstract: 789,813. Barbed wire. UTILITE. Dec. 10, 1954 [Dec. 12, 1953], No. 35910/54. Class 45. [Also in Group XXII] Two strand barbed wire has untwisted portions spaced along its length to which are attached the barbs or plates. Wires 8, 9, Fig. 7, are twisted together alternately in one direction then the other and have untwisted portions therebetween in which are mounted spiked plates 55, rotatable about wires 68 connecting inwardly crimped parts of the untwisted portions of the wires 8, 9. Succeeding plates 55 may lie in planes at 90 degrees to one another. In another embodiment, Fig. 10, wires 110, 111 twisted in one direction have spaced untwisted portions 114 in which spiked plates 107 are secured by tags bent up therefrom.
Patent GB-1086996-A (GB)
Title: New water-soluble reactive anthraquinone dyestuffs, their preparation and use
Inventor: ECKERSLEY DENNIS
IPC: C09B62/44
Filed: 1965-08-23
Abstract: The invention comprises reactive, water-soluble, anthraquinone dyes containing at least one group of the formula <FORM:1086996/C4-C5/1> where R1 and R2 are H or alkyl of 1-4 carbon atoms, Q is N, C-CN or C-Cl, X is Cl, Br or SO3H, Z is arylene or substituted arylene, W is carbamyl, sulphone or sulphur and Y is <FORM:1086996/C4-C5/2> -CH2CH(OH)CH2Cl, -CH2CH(OH)CH2Br o -CH2CH(OH)CH2OSO3H.  Preferred dyes are those of the formula <FORM:1086996/C4-C5/3> where benzene nucleus P may contain a sulphonic acid group, G is a group of Formula I and R is an arylene radical, e.g. phenylene, diphenylene, stilbene, diphenylamine or azobenzene. The compounds are prepared by condensing a compound of the formula <FORM:1086996/C4-C5/4> in either order with (a) one molecular proportion of an amino-anthraquinone having at least one acylatable group of the formula -NHR, and (b) one molecular proportion of an amine of the formula NHR2-Z-W-Y.  Compounds wherein X is a sulphonic group may be prepared by condensing an aminoanthraquinone having at least one acylatable group of the formula -NHR, with one molecular proportion of cyanuric chloride or bromide, and reacting the product firstly with an alkali metal salt of sulphurous acid to replace at least one of the halogen atoms by a sulphonic acid group, are secondly with an amine of the formula NHR2-Z-W-Y.
Patent GB-812477-A (GB)
Title: Fluid operated drill
IPC: B23B45/04
Filed: 1956-11-26
Abstract: 812,477. Portable drilling-machines. ARO EQUIPMENT CORPORATION. Nov. 26, 1956 [June 25, 1956], No. 36070/56. Class 83 (3). [Also in Group XXIX] A portable drilling-machine comprises a fluid-operated motor 30 and a fluid-operated, spring-returned feed means 50, both controlled by a main valve MV, a needle valve NV for regulating the feed means, and a check valve CV shunting the needle valve. The drill is fed by a piston 50 on a hollow rod 24 carrying the motor 30, and is returned by springs 51. The motor has a casing 26 acting as a sliding support, and rotates a chuck 48 through planetary gearing 36, 40. Air is supplied to the motor through a flexible hose 78, the main valve MV, the bore of the rod 24 and a passage 66, and is exhausted past the chuck through a passage 72. In operation, the drill is rotated by depressing the main valve MV, Fig. 6, thus also depressing a valve 94 against a spring 104 to close exhaust ports 100, there being a catch to lock the valve in the depressed position, if desired. Air then passes from the supply line 78, Fig. 11, through the valve MV to the motor 30 and also through a three-position selector valve SV, Fig. 2, and an adjustable needle valve NV to the feed piston 50. When a drilling operation is complete, the valve MV is released, thus shutting off the air supply and allowing the pressure behind the feed piston to open the check valve GV. The feed piston is then returned by its springs, the air exhausting through valves CV, NV and SV, a port 114 in the valve MV, and the ports 100. For using the other two positions of the selector valve SV, a plug 84 is removed from the drill body and an additional air-supply line is provided together with a three-way valve 3 WV, Fig. 12, which controls feed and withdrawal of the drill, and a pressure-regulating valve PR which determines the thrust on the drill. With the selector valve SV in the position shown, the check valve CV is rendered inactive so that the drill returns at feed speed, and the main valve MV can be locked "on" so that the drill rotates continuously. If the selector valve is turned to position 3, Fig. 14, the drill returns at a fast speed as the check valve is again effective. By releasing the valve MV, the drill does not rotate during retraction.
Patent GB-1033564-A (GB)
Title: Improvements relating to knitting machines
Inventor: CARROTTE FREDERICK HENRY
IPC: D04B15/38
Filed: 1961-10-11
Abstract: 1, 033, 564. Knitting machines. A. KIRKLAND & CO., Ltd. Oct. 10, 1962 [Oct. 11, 1961], No. 36474/61. Heading D1C. [Also in Division E2] A yarn guide comprises a support for mounting on a circular knitting-machine and a yarn guiding part, the two parts being separable and provided with a device for releasably fastening the parts together in positions determined by a locating means. A block attachable to the machine dial has dowels 5 which co-operate with holes on the yarn guiding part 10, to locate the parts relatively to each other, the parts being secured together by a "bayonet" fastening 9 (see Division E2) which engages a wire 7 provided in a recess 6 in the block. Release of the fastening allows the yarn guide part to be removed for cleaning, it may then be replaced without the need for subsequent adjustment. The part 17 of the guide is provided with guides 13, 14 and is adjustable relatively to the part 10.
Patent GB-998294-A (GB)
Title: 11ª‡-halo-tetracycline-6,12 hemiketals
IPC: C07C233/00
Filed: 1961-05-04
Abstract: The invention relates to compounds of the structure <FORM:0998294/C2/1> wherein X is Cl or F, A is CH3 or H, Z is Cl,Br or H but when X is F and A is CH3, Z is H and E is H or OH, provided that when E is OH, A is CH3 and Z is H by chlorination or fluorination of compounds of the structure <FORM:0998294/C2/2> in a reaction inert solvent.  The products of the invention may exist as cis or trans isomers at the 11a-position, the cis isomer being non-ketalized. Specified chlorinating agents are chlorine, iodochloride, N-chloro-lower alkanoic acid amides, N-chlorinated hydrocarbon dicarboxylic acid imides and N-chlorinated-lower-alkanoyl anilides, 3,5-dichloro-5,5-dimethyl-hydantoin, pyridinium perchloride hydrohalides and lower alkyl hypochlorites, wherein lower means containing 1 to 5 carbon atoms.  A specified fluorinating agent is perchloryl fluoride in the presence of a strong base.  At temperatures above 50 DEG  C. formation of the 5a,6-anhydro compounds may occur.  The products of the invention may be (1) halogenated and/or nitrated in the 7 and/or 9 positions by a halogenating agent and/or nitric acid or (ii) coupled with aryl diazonium salts at the 7 and/or 9 positions.  These nitro and azo compounds may be reduced to the corresponding amino compounds, e.g. by catalytic hydrogenolysis. The 11a-halogen atoms of the tetracyclines of the invention may be selectively removed by reduction, e.g. with aqueous sodium hydrosulphite, zinc in mineral acid or hydrogenolysis over noble metal catalysts, in the latter reaction other groups may be reduced. Acid addition salts of the tetracycline compounds are prepared by reaction with the appropriate acid e.g. hydrochloric acid, sulphuric acid, hydrobromic acid and phosphoric acid.  Specification 995,033 also is referred to.
Patent GB-405784-A (GB)
Title: Improvements in or relating to wire cable and wire rope attachments and the anchorage thereof
IPC: H01R43/058
Filed: 1932-12-24
Abstract: 405,784. Making rope couplings. DAVIES, F. P., and BOWDEN (ENGINEERS), Ltd., Victoria Road, Willesden Junction, London. Dec. 24, 1932, No. 36592. [Class 109.] An attachment such as an eye, hook, yoke, or stop is provided with a sleeve portion 2, of substantially uniform external diameter and having an internal surface 3 accurately worked to size with continuous or other ridges, and is of relatively soft and malleable metal so as to be contracted and embedded in the helicoidal grooves of the rope. A low carbon steel .1 to .2 per cent silicon and .08 to .15 per cent sulphur is given as an example of metal. The surface 3 may be screw-threaded or rifled, or both, the screw-threads preferably being flat or blunt topped. The contraction of the sleeve may be effected by a dead stroke press or by swaging, rolling, or fluid or steady pressure. The dics 5, 6 of a cold swaging press may have opposing grooves 7, 8 comprising segments of circles of the finished diameter of the work increasing in diameter at the sides to the original diameter of the work.