baber/WOPTO huggingface dataset:
Patent GB-1313722-A (GB)
Title: Process for the spindrawing of polyamide yarn
IPC: D01F6/60
Filed: 1971-05-12
Abstract: 1313722 Spindrawing polyamide filaments AKZO NV 12 May 1971 [13 May 1970] 14497/71 Heading B5B In a spindrawing process polyamide filaments (particularly of nylon 6 and nylon 66) are extruded from spinneret 1, quenched in blow box 2 and pass through spinning chimney 3 to an aqueous emulsion spin finish applicator roll 4 and thence to a godet roll drawing system 7, 9, 11 in which the circumferential speed of the feed godet increases from at least the first to the second yarn wrap. Drawing may be effected completely between feed godet 7 and draw godet 9 or partially between godets 7 and 9 and further drawing completed between 9 and 11. The feed godet 7 may be a stepped roller (Fig. 2) on which at least the first yarn wrap 15 is accomplished on that part of the godet having the smaller diameter or a tapered feed godet may be used (Fig. 3, not shown). The feed godet 7 and draw godets suitably have a temperature in the range 25-100‹ C., preferred temperatures being 40‹, 50‹ and 80‹ C. for godets 7, 9 and 11 respectively. A wrap separator comb 5 may be situated between feed godet 7 and its idler roll 6. A preferred aqueous emulsion spin finish comprises mineral oil, sulphonated vegetable oil, triethanolamine soap, inorganic soap, orthophenylphenol, butyl stearate and a fatty acid antistat.
Patent GB-1006192-A (GB)
Title: Improvements in or relating to pneumatic spring devices
IPC: B60G17/052
Filed: 1963-04-11
Abstract: 1,006,192. Pneumatic springs. HOESCH A.G. April 11, 1963 [April 13, 1962], No. 14514/63. Heading F2S. A pneumatic spring device comprises a cylinder a containing a compressible fluid and a piston c, the rod b of which extends to the exterior of the cylinder through a sealed joint and two orifices d, d 2  formed in the cylinder in different transverse planes thereof. The orifices are arranged for fluid communication through a by-pass having a non-return valve e disposed therein. Control means is associated with the non- return valve for causing movement thereof independently of any existing fluid flow through the valve. In the construction shown in Fig. 3 the control means comprises a spring- loaded electromagnet f which may be actuated automatically or manually. In a modification (Fig. 9) the by-pass is formed in a vessel about the main cylinder, the electromagnetic valve element e abutting in its inoperative position a valve guard t. In a further modification (Fig. 10, not shown) the pneumatic spring of Fig. 9 is incorporated in a single unit with a piston and cylinder hydraulic shock absorber, the hydraulic shock absorber and pneumatic spring piston being mounted in a common cylinder and on a common piston rod and a partition being placed between the spring and shock absorber chambers. The pneumatic spring may be mounted in parallel with the main suspension spring of the spring assembly. The electromagnet may be replaced by hydraulic, pneumatic or mechanical means.
Patent GB-632649-A (GB)
Title: Improvements relating to manually operable selector levers, switches and the like
IPC: H01H3/02
Filed: 1946-05-14
Abstract: 632,649. Locking switches. McCLEMENTS, A. May 14, 1946, No. 14541. [Class 38 (v)] [Also in Groups XXIV and XXXIII] A selector switch, particularly for use in an aircraft undercarriage control system is so arranged that it can be locked against operation by a normal manual force during take-off, or released for operation when the aircraft reaches a predetermined airspeed, while in an emergency it can be operated, while looked, by the application of an abnormal manual effort. In the form shown in Fig. 2, the switch has two push-buttons 41, 42, the former being mounted on a spindle 43 extending into a compartment containing a solenoid 45 mounted on a pivot 46. The solenoid plunger 47 is urged outwardly by a compression spring 48, and in its extended position the end of the plunger 47 enters a recess in the spindle 43. A compression spring 49 holds the solenoid in its end positions. In the position shown, with the solenoid not energized, the spring 48 prevents normal operation of the switch; with the solenoid energized, however, the plunger 47 is retracted against the spring 48 to allow operation of the button 41. In an emergency, however, the force of the springs 48, 49 may be overcome by an abnormal force exerted on the button 41, to move the solenoid 45 over the dead-centre position. Specification 605,274, [Group XXXI], is referred to.
Patent GB-278630-A (GB)
Title: Improvements in gas cookers
IPC: F24C15/00
Filed: 1927-06-01
Abstract: 278,630. Oakley, P., Richardson, W. H., and Stoves, Ltd. June 1, 1927. Draught, regula. ting; outlets to chimneys.-An outlet arranged at the lower end of a gas oven, comprises, in the form shown in Fig. 1 a nozzle at rightangles to the back plate having a through horizontal passage c and an opening d, preferably on the underside, which enables the gases to escape if the outlet end of the nozzle is placed against a wall, and, when a flue pipe is fitted, moderates the draught by admitting air. A shoulder e prevents the flue pipe passing over the opening d. The forms shown in Figs. 3 and 5 comprise respectively an elbow and a T-piece having air-inlet openings h at the bottom, shouldered upper ends n on which the flue-pipe is fitted, and flanges j bolted to the back plate through equally-spaced holes, so that the fitting may be adjusted about a horizontal axis in order that the flue-pipe may be led off in the required direction.
Patent GB-872021-A (GB)
Title: Apparatus for the damping of transverse vibrations in the working spindles of machine tools, in particular drilling and milling machines
IPC: F16C21/00
Filed: 1959-06-11
Abstract: 872,021. Machine-tool details. VEREINIGTE WERKZEUGMASCHINENFABRIKEN A.G. June 11, 1959 [July 26, 1958], No. 14721/59. Class 83 (3). [Also in Group XXXIV] A mounting for a spindle in a machine-tool such as a drilling or milling-machine comprises a sleeve in which the spindle is movably mounted, spaced-apart bearings in which said sleeve is rotatable and, between said bearings, an annular space provided between the spindle and sleeve which is filled with oil from a supply continuously under-high pressure fed to such space through narrow openings in the sleeve. The spindle, Fig. 1, is rotatably connected with and longitudinally movable within a hollow sleeve 2. The latter is rotatable within an outer sleeve 4 supported in bearings 7, 8. The intermediate sleeve 2 has a first bearing 3 in the outer sleeve 4 and a second bearing 5 in the frame. Between the bearings 7, 8, a small clearance space 9 is provided for high-pressure oil, e.g. a pressure of four atmospheres, and this is connected by a number of narrow passages 16 to a further clearance space 10 between the intermediate and outer sleeves. The clearance spaces &c. are supplied with oil pressure from a regulator 15 through a slip coupling 13 and passages 14, 11. In a modified arrangement a number of annular grooves connected by longitudinal channels replace the clearance space between the spindle and intermediate sleeve and the narrow supply passages are provided within the slip-ring at the end of the intermediate sleeve. In a further modification the oil supply passages are as just described, but, the spindle is an interference fit in the intermediate sleeve and is held therein until the high-pressure oil supply is delivered.
Patent GB-598983-A (GB)
Title: Production of therapeutic products for use in the preparation of vitamins or vitamin-like substances
IPC: C07D333/38
Filed: 1945-07-09
Abstract: 2 - (o  - carbalkoxyalkyl) - 3 - keto - 4 - carbal - koxytetrahydrothiophenes, of the general formula: <FORM:0598983/IV/1> wherein R represents a lower alkyl group containing not more than 4 carbon atoms (preferably ethyl) and m is a small integer above O, but not greater than 10 (preferably 4), are manufactured by treating an alkali or alkaline-earth metal (preferably barium or calcium) salt of b -mercaptopropionic acid with an a -halogendicarboxylic acid containing at least 4 carbon atoms (the term "halogen" not including fluorine), in the presence of sufficient of the hydroxide of the alkali or alkaline-earth metal to neutralize all acid groups, and preferably while cooled in ice, esterifying the resulting a -(b 1 - carboxyethylthio) - dicarboxylic acid salt preferably by treatment with a halogen hydrocid and then with an alcohol containing not more than 4 carbon atoms in the presence of an acidic esterifying agent), and treating the resulting trialkyl ester with an alkaline condensing agent (e.g. an alkali metal, sodium triphenylmethyl, sodium or potassium amide or an alkali metal alkoxide, e.g. methoxide, isopropoxide or tert.-tutoxide).  The alkali or alkaline earth metal salt of b -mercaptopropionic acid may be first prepared by the action of an aqueous solution of an alkali or alkaline-earth hydroxide on d -b -carboxyethylisothiourea, and the a -halogen-dicarboxylic acid by reacting a halogen-fatty acid ester (e.g. ethyl d -bromo-n-valerate, methyl chloracetate, propyl b -bromo-propionate, ethyl g -bromobutyrate, methyl e -chlorocaproate or ethyl o -bromopelargonate) with diethyl malonate in the presence of an alkali metal alcoholate, treating the resulting a  : a  : o -tricarbalkoxylalkane with a halogen in an organic solvent inert thereto, and heating the so-obtained a -halogen-a  : a  : o -tricarbalkoxyalkane with a halogen hydracid.  The products are useful in the preparation of biotin and related vitamin-like compounds.  In an example, all the steps set out above are carried out, starting with ethyl d -bromovalerate and using bromine in carbon tetrachloride as the halogenating agent, barium hydroxide as the alkaline-earth metal hydroxide, ethyl alcohol and dry hydrogen chloride in the esterification and sodium ethoxide as the alkaline condensing agent, thereby producing 2-(d -carbethoxybutyl)-3-keto-4-carbethoxytetrahydrothiophene.
Patent GB-859811-A (GB)
Title: Improvements in and relating to nuclear reactors
Inventor: MOORE DEREK
IPC: G21C7/14
Filed: 1956-05-11
Abstract: 859,811. Nuclear reactors. ENGLISH ELECTRIC CO. Ltd. May 8, 1957 [May 11, 1956], No. 14807/56. Class 39(4). A control element 11 for a nuclear reactor is biased (by gravity) to the shut-down position with a winding cable so wound on a reel 12 that the reel radius at which it is wound increases as the element is withdrawn from the reactor core. A free wheel device fitted in the hub of the reel 12 couples the reel to a synchronous motor but allows this motor to run free when the control element has descended rapidly driving the de-energized motor and is then stopped. When the element 11 is thus stopped, by the cable unwinding to an anchor pin 12d a sheave 16 stresses a torsion spring 19 and allows the cable to straighten, from the position B to position C, returning to B as permitted by a dash-pot 20.
Patent GB-1030644-A (GB)
Title: Improvements in or relating to draught-controlling devices of closed stoves
Inventor: PORTWAY MICHAEL CEDRIC
IPC: F23L17/00
Filed: 1964-04-10
Abstract: 1,030,644. Regulating draughts. CHARLES PORTWAY & SON Ltd. April 23, 1965 [April 10, 1964], No. 14898/64. Heading F4W. A boiler or stove having an air inlet 2 below a combustion zone 1 has a draught regulator, the horizontal pivotal arm of which is situated between an aperture 7 in a top closure 5 and a flue 4, comprising a valve 8 formed from a single plate to provide two rectangular, planar and rigidly connected vanes 10 and 11 subtending an obtuse angle between them, the apex pointing towards the top closure 5 and being coincident with a pivotal axis 9. In operation, the vanes 10 and 11 are equally balanced downwardly from the aperture 7 and flue 4 respectively, the latter being only partially obstructed. When the draught in the flue 4 is decreased, or when there is a downdraught in the flue, the valve 8 rotates to further open the flue and hence close the aperture 7, and vice versa when the draught in the flue increases, thus maintaining the draught through the boiler automatically. The valve 8 may be made from a metal capable of withstanding the temperature and corrosive action of the flue gases.
Patent GB-354822-A (GB)
Title: Improvements in or relating to the fixing or adjustment of lampshades
IPC: F21V17/04
Filed: 1930-05-15
Abstract: 354,822. Mounting shades on electric lamp bulbs. WILLIAMS, J. D., 6A, West Street, Epsom, Surrey. May 15, 1930, No. 14959. [Class 75 (ii).] In a holder for mounting a shade on an incandescent electric lamp comprising a stiff rim 11 carrying a diaphragm provided with a central aperture and radial slits 14 forming tongues 12, the rim and outer radius of the slits are sufficiently large to permit the holder to be pushed over the bulb 17 of the lamp. The diaphragm may be made of thin sheet metal, or other flexible and springy material, soldered to, or bent around, the rim. The latter may be made of wire of circular or polygonal form, and may be attached by hooks 16 to the shade frame or protector 15. Instead of making the tongues 12 integral with one another they may be separately formed and secured to the rim.
Patent GB-653090-A (GB)
Title: Improvements in and relating to impulse nozzles for fluid pressure turbines
IPC: F01D9/04
Filed: 1948-06-03
Abstract: 653,090. Turbine nozzles. ALLEN, SONS & CO., Ltd., W. H., and GRAY, J. H. June 3, 1948, No. 14974. [Class 110(iii)] [Also in Group XXII] A turbine nozzle ring 1 is formed by drilling a series of oblique tangential bores, Figs. 13 and 16, from the delivery face to larger bores 12 perpendicular to the entry face and filling the bores 3 with slotted plugs 4. The slots which form the nozzle passages are made with throats 4b and transversely concave floors. The diameter of the plugs and the concavity of the floors are such that in the oblique delivery faces the inner and outer walls of each nozzle passages are concentric with the turbine axis. The nozzle ring is made from a blank having a thickened portion 1a, Fig. 3, which is subsequently cut away. The bores 3 are drilled from prepared faces 2a. Each bore is plugged before the next one is drilled to permit the bores to intersect. Each plug is positioned by means of a key 5 which enters a prepared slot 2b. The plug is locked in place by the insertion of the plug in the next bore which has cut into the inserted plug. The last plug is locked by a pin in a hole drilled across the bore. When all the plugs are inserted the part 1a is machined off.
Patent GB-930216-A (GB)
Title: Apparatus for the production of sugar-confectionery sweetmeats
IPC: A23G3/02
Filed: 1961-04-26
Abstract: 930,216. Confectionery moulds. C. J. L. WARREN, and J. W. MILROSS. April 26, 1962 [April 26, 1961], No. 15033/61. Class 87(2). A mould comprises a metal plate with a number of holes through it, each hole being fitted with a lining sleeve of material such as silicone rubber, nylon or P.T.F.E., which exhibits non-sticking properties. The internal cross section of each sleeve 24, may be uniform or tapered and flanges or annular grooves may be employed to retain the sleeves in their mould plates 20, (see Figs. 1a (shown)-3b (not shown). The lower end of each sleeve may be proud of the mould plate, so as to make a seal with a flat surface on which the mould plate is rested. In operation a series of such moulds are rigidily or pivotally mounted on a pair of parallel chains so as to follow a closed path, Fig. 4. As each mould passes under a wheel J1 the sleeves make contact with a moving belt 16. The moulds are filled with hot confectionery syrup from a dispenser 36, movement of chains and belt being arrested while filling takes place. Cooling of the mould contents occurs between J1 and J2, and as the moulds rise clear of the belt beyond J2, the cooled sweets either fall out or are pushed out by an ejector mechanism.
Patent GB-496558-A (GB)
Title: Improvements in treatment baths for the photographic dye destruction process
IPC: G03C7/28
Filed: 1937-05-31
Abstract: 496,558. Baths for the dye-destruction process. CASPAR, B. May. 31, 1937, No. 15051. Convention date, May 30, 1936. [Class 98 (ii)] Baths for destroying the dye in the presence of the silver image in diffusely dyed layers includes an organic solvent miscible with water, the proportion of water to organic solvent being approximately 1:3. Examples of suitable compositions are (1) thiocarbamide, hydroquinone, hydrochloric acid, and ethyl alcohol or acetone ; and (2) thiocarbamide, Metol, sulphuric acid and methyl alcohol. The baths are useful when the emulsion has been dyed with insoluble azo dyes. Such dyes are, for example Para Red (formed by coupling diazo-p-nitraniline and #-naphthol), the dyes formed from diazo-p-nitraniline and 2: 3-oxynaphthoic acid anilide, from diazo- 2 : 5-dichloraniline and #-naphthol, and from echtblau salt RR or B and #-naphthol. The dye derived from 2-amino-5-naphtlol-7-sulphonic acid treated with toluole sulphonic chloride and coupled with diazotized diazo light yellow may also be used. Specifications 397,159 and 496,559 are referred to.
Patent GB-352635-A (GB)
Title: Improvements in and relating to electric lead-through insulators
IPC: H01B17/26
Filed: 1930-05-16
Abstract: 352,635. Insulators. POLLAK, J. E., 20, Holborn, London.-(Hermsdorf-Schomburg-Isolatoren Ges. ; Hermsdorf, Thuringen, Germany.) May 16, 1930, No. 15123. [Class 36.] To reduce creepage discharge in a porcelain leadthrough insulator of the type in which the supporting flange is secured within a conductively - co ate d channel 6 formed in the outer surface of the insulator, an insulating filling 10 is provided in an internal recess formed in a tapering or cylindrical section 9 of the insulator adjacent the channel 6. The filling 10 preferably consists of a mixture of porcelain rubble and artificial resin which may be hardened after insertion and impregnated with paraffin or oil. As shown in Fig. 2, the filling 10 may consist of oil, in which case an expansion space 11 must be left above the oil. In the constructions shown in Figs. 2 and 3, the insulator is built up from a plurality of telescoped porcelain tubes 1, 2, 3 cemented together by a mixture of powdered artificial resin and porcelain which after being hardened may be impregnated with paraffin or liquid artificial resin. The surfaces of the tubes 1, 2, 3 may be roughened to increase the adhesion of the cement. The space between the conductor and the inner tube 3 mav be filled with a similar cement.
Patent GB-811463-A (GB)
Title: Power steering device
IPC: B62D5/06
Filed: 1956-05-15
Abstract: 811,463. Vehicle power steering. MONROE AUTO EQUIPMENT CO. May 15, 1956 [Aug. 5, 1955], No. 15124/56. Class 79(5) [Also in Groups XXIV and XXXIV] In power assisted steering mechanism having a rack and pinion steering gear one end of the rack 61, Fig. 1, is connected to and axially aligned with a valve element 51 in a housing 37 combined with a power cylinder 23, the piston 27 of which has its rod 29 flexibly connected to the vehicle frame 17. As further shown in Fig. 1 steering arms 22 for wheels 15 are connected by tie rods 19 to the cylinder 23 which houses the piston 27 having its rod 29 resiliently connected to a bracket 33 on the vehicle frame 17. The valve housing 37 is separated from the cylinder 23 by a plug 39. The housing 37 has parts 41, 43 connected to the ends of the cylinder, a port 45 connected to the output of a pump 38 and ports 47, 49 connected to a reservoir formed integrally with the pump, the valve ports being controlled by the element 51 having lands 53, 55 and being centralized by springs 57, 59. The spring 59 abuts between a cylinder end cover 71 and a washer 68 carried by the rack 61 abutting the element 51 and having a resilient connection 65 with the cylinder 23. The rack 61 is moved linearly by rotation of a steering wheel 105 to similarly move the cylinder 23 and the element 51, the latter causing power assistance to the steering. The rack 61 is formed with teeth 73 engaging the steering gear pinion 91 which is connected by a joint to a shaft 103 carrying the wheel 105, the joint comprising a spade 97 integral with the pinion and carrying a resilient collar 99 within an end portion 101 of the shaft 103. The rack teeth 73 are urged into engagement with the pinion by a spring 87 which abuts a block 81 carrying ball bearings 77 which support the rack 61 during its linear movement. In assembling a vehicle with this steering mechanism it is stated that the steering wheel 105, shaft 103 and a housing 107 can be formed with the body and the remainder of the mechanism with the frame 17, assembly being completed by making the joint 97, 99, 101. In modifications (a) a cylinder 155, Fig. 12, connected to tie rods 161 is prevented from rotation about its longitudinal axis by inter-pivoted links 241, 243 connected to the cylinder and a bracket 168 on the the vehicle frame, respectively: (b) a steering shaft 215, Fig. 14, carrying a steering wheel 229 is connected to the steering gear pinion by a flexible shaft or cable 217; (c) the rack 61<SP>1</SP>, Fig. 9, is connected to the valve element by a ball 113 and is supported in the valve housing for linear movement by ball bearings 121, and the other end of the rack is supported by two ball races, 125, the valve element being centred by a spring 57<SP>1</SP>. Specification 735,641 [Group XXIX] is referred to..
Patent GB-612219-A (GB)
Title: Improvements in circuits and in apparatus for indirect testing processes, to determine the making and breaking capacity of electric switches and circuit breakers
IPC: G01R31/333
Filed: 1946-05-20
Abstract: 612,219. Detecting, indicating and locating faults. ETABLISSEMENTS MERLIN & GERIN. May 20, 1946, No. 15154. Convention date, Feb. 3, 1943. [Class 37] [Also in Group XL (a)] In the testing of high-power switches by means which simulate a high-power supply, a L.T. source of high current 1 is connected in series with the switch 7 under test, over the secondary of a step-up transformer 8 supplying the high-voltage element of the test power. With 7 open, the full voltage of 1 and 8 is in series across its terminals, but when, in closing, an arc passes between its contacts, current-flow in a resistance 9 causes an arc between electrodes 4, 5 which is blown by air from jet 12 on to an electrode 3 and maintained by source 1, so short-circuiting the secondary of 8 whilst permitting full current-flow to the switch.
Patent GB-197839-A (GB)
Title: Improvements in air compressors particularly for petrol gas apparatus
IPC: C10J1/02
Filed: 1922-05-30
Abstract: 197,839. Smith, H. E. May 30, 1922. Pump stroke - varying mechanism; bell pumps. - The stroke of the bell pump of petrol-gas or like apparatus is varied in relation to the stroke of the water motor which drives it through a lever. A lever c is attached at fixed points to the rods of the bell pump a and watermotor e, and is further linked to a frame h by a link d connected to the frame and lever at one of the several pairs of points k, l; or a continuous adjustment may be provided. In a modification, the lever is linked to the bell and the frame at fixed points, and the motor is disposed adjustably in one of several holes in the frame, or it may be disposed in any position between a pair of frames. One size of motor and pump may be used with gas holders of various sizes.
Patent GB-109863-A (GB)
Title: Improvements in and connected with Fountain Pens.
Inventor: CALTON WILLIAM THOMAS KENNETT
IPC: B43K23/12
Filed: 1916-10-26
Abstract: 109,863. Calton, W. T. K. Oct. 26, 1916. Reservoir pens.-In a reservoir pen of the type in which the nib is adapted to be projected and retracted by the rotation of a sleeve having a helical slot in which a pin on the feed-bar engages, the sleeve is wholly contained within an end plug which is directly secured to the rear end of the barrel. The end plug h is screwed into the barrel e and the rotary sleeve k is provided with a flange l which abuts against the inner end of the plug. A pin o on the feed-bar d works in a helical slot m in the sleeve and in a longitudinal groove j in the plug. An operating cap q is secured to a shank n of the sleeve by a pin r, a washer p being interposed between the cap and the sleeve.