baber/WOPTO huggingface dataset:
Patent GB-514699-A (GB)
Title: Improvements relating to hydraulic transmission gear
IPC: F16H39/02
Filed: 1938-05-13
Abstract: 514,699. Hydraulic transmission gear. NEWTON BROS. (DERBY), Ltd., NEWTON, F., and ROE, R. C. May 13, 1938, No. 14280. [Class 69 (ii)] In hydraulic transmission gear of the kind comprising a pump a and a motor b each consisting of one or more eccentric rings q, r carrying rollers o, p and located in a stationary casing t, there being liquid distributing means for the divisions made by the rollers of the spaces u (not shown) between the rings and the casing and for the pockets s in which the rollers reciprocate, the eccentrics of both the pump and motor units are made adjustable in throw. These adjustments may be independent or co-related, and may be effected by hydraulic means under the control of a manually, operated valve c. The pump and motor shafts j. j' each carry eccentrics j<2>, j' with rings k, l which move over two series of parts m, n connected, respectively, with the pockets s and the spaces u. The rings q, r are adjusted hydraulically by a piston x operating in a cylinder z and carried by a rod y with a stop 5. The piston rod y is located in a slotted and flattened portion of the shaft j and is provided on opposite sides at different portions of its length with slanting ridges or splines 2, 2a , engaging in corresponding slanting grooves 3 in one of each of two pairs of cheek pieces 4, each pair lying one to each side of the shaft j and rod y, and filling the spaces between these parts and the rings q, r. In one position of the valve c, the pump and motor eccentrics are at a minimum and maximum respectively, and the motor is stationary. In a second position, as shown. both eccentrics are at a maximum and the motor runs at half speed. In a third position, the pump and motor eccentrics are at a maximum and minimum respectively and the motor runs at full speed. The fourth is a locking position. Specifications 336.340, [Class 69 (ii)], and 514,700 are referred to.
Patent GB-746048-A (GB)
Title: Improvements in and relating to ladders
Inventor: HARVEY GEORGE FRANCIS BURTON
IPC: E06C1/56
Filed: 1953-05-21
Abstract: 746,048. Flexible ladders. GLOVER BROS. (MOSSLEY), Ltd. May 21, 1954 [May 21, 1953], No. 14376/53. Class 20(2). A flexible ladder is made up of rectangular frames of stiff sheet material (e.g. sheet metal, or a light alloy or other metal casting) each having tread portions projecting in opposite directions to each other from the upper edges of its upper and lower transverse members, these frames being hingedly connected by pairs of links (e.g. of metal rod, strip or wire) arranged one at each side, the dimensions being such that the frames can be swung about the links to nest on one another with the corresponding treads overlapping. Fig. 1 shows a sheet metal blank from which a finished frame is made by bending down the treads 11, 12 in opposite directions; Fig. 5, the frames a, b, c are connected by circular section metal rods 13, the eyes at the ends of which are brazed, welded &c., after they have been passed through apertures 7c, 7d and 8c, 8d in adjacent frames. The frames may be built up from parts welded, brazed, clamped &c., together, e.g. four parts each with an apertured circular portion at both ends (according to the Provisional Specification, such a frame may be held together merely by passage of the links 13 through coincident apertures) ; the treads may also be formed separately and welded &c., to the frames. Flexible cables or chains may be used to form the links 13.
Patent GB-311707-A (GB)
Title: An improvement in carrying out ester condensations
IPC: C07C69/72
Filed: 1929-05-08
Abstract: 311,707. Wacker Ges. fiir Elektrochemische Industrie Ges., Dr. A. May 14, 1928, [Convention date]. Ethyl aceto-acetate and similar esters are produced by heating an ester of an alcohol containing less than four carbon atoms with an aliphatic carboxylic acid, such as ethyl acetate, with an alkali metal alcoholate and distilling off the liberated alcohol during the reaction. In an example, using ethyl acetate and sodium ethylate, the alcohol and unchanged ethyl acetate are distilled in a column still as completely as possible, and the remaining mass is treated with an acid in the known manner and the ester fractionated. The Specification as open to inspection under Sect. 91 (3) (a) is not limited as to the nature of the ester employed.
Patent GB-594577-A (GB)
Title: Improvements in or relating to recoil-less guns
IPC: F41A19/58
Filed: 1943-09-04
Abstract: 594,577. Ordnance. BURNEY, SIR C. D. Sept. 4, 1943, No. 14463. [Classes 92 (i) and 92 (ii)] Relates to non-recoil guns of the kind described in Specification 586,749 and having lateral gas chambers 5 connected to rearwardly discharging gas nozzles 13 on each side of the breech opening b as described in Specification 590,272. According to the present invention, the propellent charge p is divided and loaded into the lateral chambers separately from the projectile 4 which is loaded centrally. As shown in Fig. 3, the breech structure comprises a central compartment 3 to receive the gun barrel 1, and parallel lateral compartments 5 to the rear end of which the nozzles 13 are fitted, the front ends having openings closed by hinged breech blocks 6 through which the charges p are loaded rearwardly. The gas chamber is provided by a transverse bore 9 closed by plugs 11. The front end of each nozzle is provided with a grid 14 and a variable replaceable throat piece 16. A central removable tube 17 with a rear expansion nozzle 19 and a replaceable throat piece 18 provide readily accessible means for finely adjusting the throat area of the nozzles. Power means for ramming the projectile from a loading tray is provided by a ram cylinder 24, Fig. 2, the piston of which is connected to a cross-head carrying a pair of pulleys 27, 28, Fig. 4. A cable arranged as in Fig. 4 is anchored at each end 32, 33 and passes round the pulleys 27, 28 and also round pulleys 29, 30 on the fixed rammer structure. The ramming head 21 is connected to a slide 23 to which the cable is attached. With the arrangement shown, the rammer head moves four times as fast as the power piston. The charges are fired electrically by circuits, Fig. 5, which can only be completed when all the breech blocks (i, 15 are closed. The firing and testing circuits include a battery 35, firing switch 36 and charge igniters IC<1>, IC<2>. The testing circuits include resistance relays RC<1>, RC<2> in parallel which prevent the passage of full current to the igniters until switches A<1>, A<2> are closed by the relays tu energize a contactor C operating switches AC, I<1>, I<2> that enable the firing current to byepass the resistance relays. Specifications 590,269 and 590,271 also are referred to.
Patent GB-892057-A (GB)
Title: Improvements in or relating to the magnetic storage of information
Inventor: BEAUFOY RAYMOND
IPC: G11B19/04
Filed: 1958-05-06
Abstract: 892,057. Magnetic recording &c. apparatus; monitoring. BRITISH TELECOMMUNICATIONS RESEARCH Ltd. April 20, 1959 [May 6, 1958], No. 14467/58. Class 40 (2). [Also in Group XIX] The control equipment for a magnetic drum digital data store has a supervisory circuit operated in the event of power failure to prevent the start of a new processing operation, a power reserve (e.g. a large capacitor) enabling completion of the current operation and operation of the supervisory circuit. An electromagnetic relay may be used in the supervisory circuit, which may be sensitive to a rate of fall of the power supply voltage normally attributable only to power failure. Fig. 7 shows part of the writing circuit comprising a transformer TR2, the secondary of which drives the recording head and having two primary windings for binary 0 and 1) energized oppositely by transistors T2, T3. Writing is inhibited by cutting off series transistor T1.
Patent GB-152301-A (GB)
Title: Improvement in air regulating device for oil burners
IPC: F23D11/00
Filed: 1920-05-27
Abstract: 152,301. Coen Co., Inc., (Assignees of Voorheis, J. T.). Oct. 9, 1919, [Convention date]. Drawings to Specification. Lighting burners, lighting-holes and doors for. -A sighting or torch aperture on the head-plate of an air-regulating means for oil burners is covered by a pivoted door normally resting on a stop.
Patent GB-598259-A (GB)
Title: Liquid feeding apparatus
IPC: B03D1/14
Filed: 1945-06-08
Abstract: 598,259. Bucket elevator apparatus. DEHN, F. B. (Mining Process & Patent Co.). June 8, 1945, No. 14578. [Class 102 (ii)] A disc 14 fitted with.buckets 16 is driven by an electric motor 9 through a speed reducing gear 10 and raises liquid from a tank 4 and delivers it to a receptacle 17 that has an edge 22 inclined to the face of the disc 14 so that when the receptacle 17 is moved parallel to the disc, the amount of liquid received in it is varied. The outlet 18 from the receptacle passes through the wall of the tank and the position of the receptacle is varied by the screw 20.
Patent GB-710080-A (GB)
Title: Antifoam agents for conditioning boiler feed water
Inventor: BAIRD WILLIAM
IPC: C08G65/28
Filed: 1950-06-12
Abstract: Diethers of 1, 12-octadecanediol with 18-25 mols. of ethylene oxide may be prepared by heating the ingredients together at a temperature between 100 and 200 DEG C. in presence of an alkaline catalyst, e.g. sodium, potassium or calcium or hydroxides or oxides thereof.  The products with or without other materials are useful for preventing foaming of aqueous liquids used for generating steam (see Group III). Specification 380,431 is referred to.ALSO:Diethers of 1.12 octadecanediol with 18-25 mols of ethylene oxide (see Group IV (a)) minimise the formation of foam in aqueous media used for steam generation.  Up to 1 part/million of the boiler water is usually added.  The ethers are preferably mixed with other water treatment chemicals.  A composition described contains .5-3 per cent. of the ether; 30-60 per cent. of a tannin; 1-5 per cent. of glassy sodium phosphate and 30-60 per cent. of sodium carbonate.  Specification 380,431 is referred to.
Patent GB-235205-A (GB)
Title: Improvements in or relating to magazine pencils
IPC: B43K21/04
Filed: 1925-06-04
Abstract: 235,205. Jaouen, H. June 7, 1924, [Convention date]. Pencil holders.-In a magazine pencil holder, the lead-holding tube a extends along the axis of the magazine detachably mounted in the outer casing g, and is provided with a slot equal in length to the length of the magazine, a second tube l surrounding the tube a being also provided with a slot adapted to be brought into register with that in the tube a to permit the passage of leads from the magazine. The magazine, compartments are formed by the. intervals between a number of rods n attached to parts c, o at the top and bottom respectively. The part c is attached to a member e connected to the outer casing g by means of a pin f and bayonet slot so that it can be removed to facilitate the insertion of leads into the magazine compartments. The member e carries an indicator spring m adapted to snap into a series of recesses in a member h to which the tube l is connected. To insert a lead into the tube a, the member h is turned until the spring m engages the recess corresponding to the lead required, and a mark on the head b of the tube a is then brought, opposite the same recess so that the openings in the tubes a, l are brought opposite the magazine compartment containing the desired lead. The lead falls down the tube a to the point of the pencil holder, and is held in writing-position by means of a split tube q clamped on the lead by a tube s. By pressing in the head b against the action of a spring y, a ring r on the tube a causes a sliding member p carrying the tube s to move outwardly. The split end of the tube q is therefore allowed to open to enable the lead to be adjusted. A spring t restores the parts p, s to their original positions on release of pressure, on the head b.
Patent GB-514798-A (GB)
Title: Improvements in or relating to landing gear for aircraft
IPC: B64C25/14
Filed: 1938-05-16
Abstract: 514,798. Retractable alighting gear for aircraft. SOC. D'INVENTIONS AERONAUTIQUES ET MECANIQUES S.I.A.M, May 16, 1938, No. 14594. Convention date, May 31, 1937. (Class 4] A retractable landing gear, particularly a tail wheel gear, comprises a pivoted leg the position of which is controlled by means comprising a link pivotally connected to the leg and to a further link pivotally connected to the aircraft structure, the links in the operative position of the landing gear being parallel to each other and the distance between their points of attachment to leg and structure respectively being equal to the difference in length of the links. A leg 2, Fig. 1, carrying a tail wheel 1 is pivoted at 3 to a fixed part of the aeroplane A and the position thereof is controlled by elements 4, 5 interconnected at 6 and pivoted to leg 2 at 7 and structure A at 8, respectively. Element 4 is provided with a lever arm 12 to which is pivotally connected the ram of a hydraulic jack C pivotally mounted at 9 on element 5. Extension of the jack causes the angle between elements 4, 5 to close, element 5 pivoting upwardly about axis 8 in the direction f until points 3, 7, 6 are in line (upper dotted position) thereafter pivot 6 moves in the direction f<1> to the lower dotted position wherein element 4 lies parallel to element 5 and in which reactions between wheel 1 and the ground produce no force on the jack, Fig. 3. The hydraulic jack may be substituted by a mechanical, pneumatic or electrical device. The two part leg 4, 5 may be duplicated as shown in Fig. 4, one jack C only being employed.
Patent GB-747622-A (GB)
Title: Improvements in and relating to the dyeing of textile materials
Inventor: BRADSHAW SAMUEL NELSON
Filed: 1953-05-26
Abstract: In the dyeing of textile materials, the materials are treated with a dyestuff in the presence of urea and then baked at a temperature between the melting point of urea (132 DEG C.), and 160 DEG C. Preferably the textiles are impregnated with aqueous solutions of the dyestuff and urea at room temperature then dried at about 80 DEG C., baked and finally washed.  The process is suitable for dyeing with direct cotton, dispersed acetate, soluble acetate, vat leuco ester, aggregated acid and metal complex dyestuffs and is applicable to textiles of cotton, wool, regenerated cellulose, artificial proteins, cellulose esters, synthetic polyamides and polyesters and vinyl resins.  Numerous examples are given of the dyeing of fabrics of viscose rayon, viscose rayon-regenerated protein fibres, wool-regenerated protein fibres, cotton, nylon, polyester and cellulose acetate.  Example 15 describes the dyeing of viscose rayon fabric with Solochrome Cyanine B in the presence of basic chrome acetate and Example 16 the dyeing of cellulose acetate fabric with Soledon Jade Green 2GS, the baking step effecting a reversion of the leuco ester to the parent dyestuff.
Patent GB-681043-A (GB)
Title: Means for separating solid substances from fluids by sieving
Inventor: MARK KORNELIS VAN DER
IPC: B04B5/12
Filed: 1950-06-12
Abstract: 681,043. Centrifugal-machines. MARK, K. VAN DER, and DUINTJER WILKENS MEIHUIZEN & CO. N.V. June 12, 1950, No. 14637/50. Class 23 In a centrifugal separator particularly for separating potato fibres from a potato flour suspension and comprising a rotor, chambers 4 on the rotor, radial screens 5 forming the leading faces of the chambers, pipes 8 discharging from the chambers, and a casing 7 surrounding the rotor, a mixture of solids and fluid is continuously supplied to the centre 3 of the rotor, solids are collected in the casing after passing over the screens, and fluid passing through the screens is discharged from the chambers by the pipes. The casing 7 is volute shaped with an outlet for the solids, and the fluid from the pipes is collected in a stationary trough 9. In a modification, Fig. 3 (not shown), fluid and fine particles passing through the screens are discharged from the pipes into a gutter fixed to the rotor. The fine particles and fluid separate in the gutter, and the fluid being removed inwardly by a suction pipe and the particles discharging through outlets to a stationary trough. A number of screens having different mesh may be provided for each chamber, or the chambers may be subdivided radially. Wash water may be supplied to the solids at some distance from the axis in which case the damp separated solids may be led to further separators arranged so that all separators rotate on a common shaft. A grater may be fixed to the casing and the grated material may be led to a further separator
Patent GB-1483171-A (GB)
Title: Producing patterns with an electron beam
IPC: H01L21/027
Filed: 1976-04-09
Abstract: 1483171 Electron beam apparatus INTERNATIONAL BUSINESS MACHINES CORP 9 April 1976 [13 June 1975] 14643/76 Heading H1D In a method of producing a pattern at the surface of a material by selectively scanning the surface with an electron beam-e.g. to expose an electron sensitive resist-the electron beam, while scanning a segment of the pattern, is arranged to be narrower while scanning the surface adjacent the outer boundary of the segment than while scanning the inner region of the segment, thereby improving edge definition of the pattern for a given speed of throughput. As described, the pattern is divided into segments in the form of rectangles or parallelograms, which are sequentially exposed by spiral scanning, Fig. 5. The charge of beam size is effected either by change of the potential applied to the centre electrodes of a pair of Einzel lenses (Figs. 4 and 5, not shown), or by deflecting the beam to pass through a different sized limiting aperture 62, Fig. 7. Reference is made to the use of electromagnetic rather than Einzel lenses, and to the mechanical movement of an aperture plate instead of deflection of the beam with respect thereto. Suitable circuitry for the method is described.
Patent GB-329154-A (GB)
Title: Improvements relating to strong room doors, safes and the like
IPC: E05G1/024
Filed: 1929-05-10
Abstract: 329,154. Milners Safe Co., Ltd., and Heron, C. R. May 10, 1929. Drawings to Specification. Fire-resisting and metal doors.-Doors or walls of safes are built up of a combination of Spiegeleisen and copper, one metal being shaped as plates, bars of various shapes, rings or helical windings and embedded in the second metal in such a way that a clear run through the door or wall without touching the metals alternately cannot be obtained.
Patent GB-841299-A (GB)
Title: Improvements in or relating to dampers for the control of the flow of air or other gas
IPC: F24F13/08
Filed: 1957-05-08
Abstract: 841,299. Ventilators. CRITTALL & CO. Ltd., R., and RHODES, F. May 8, 1957, No. 14663/57. Class 137 In a damper for the deflection of air from a main duct 2 to a branch wherein two or more blades 6 are pivoted on and carried by a hinged member 3 and serve when inoperative to occlude the branch, and when operative project into the main duct 2 to a variable degree, the blades 6 being movable so that the degree of projection of each into the duct 2 is greater than that of the blade immediately in front of it, there is slidably mounted on the blade-carrying member 3 on pins 8 extending into apertures therein a bladerocking member 9 having slots 10 and means so that, on movement of the member 9 to the operative position, the blades 6 are simultaneously projected into the duct 2. This means comprises a screwed spindle 13 turned by the end 15 in a nut 17 carrying a pin 18 moving in a slot 19 to give simultaneous sliding of the member 9 on the member 3 by coaction of pins 11 in the flanges 7, extending through apertures 12 in the plate 9 and of a pin 21 on the casing 1 with slots 12 and 20 in the member 9.
Patent GB-549727-A (GB)
Title: Improvements in or relating to electric high-pressure metal-vapour discharge tubes
IPC: H01J17/22
Filed: 1941-11-19
Abstract: 549,727. Metal-vapour lamps. PHILIPS LAMPS, Ltd (Naamlooze Vennootschap Philips'- Gloeilampenfabrieken): Nov. 19, 1941; No. 14891. Drawings to Specification. [Class 39 (i)] The subject-matter of this Specification is identical with that of Specification 616,808, [Group XL(a)].
Patent GB-119552-A (GB)
Title: Improvements in and relating to Internal Combustion Engines.
Inventor: CHALLIS PHILIP
IPC: F02B75/04
Filed: 1917-10-15
Abstract: 119,552. Challis, P. Oct. 15, 1917. Valves.-To vary the piston stroke in an engine using a rocking beam, the connecting-rod, e.g. 15, Fig. 1, is adjustably secured to a beam having guideways upon which slides a slipper 13 carried by the rod. The beam oscillates about a fixed shaft 9 and the adjustment of the connecting-rod is effected by rotating a nut 32 in the interior of which works a screw 13 secured to the end of the rod. The driving-mechanism is shown in Fig. 1 applied to a two-stroke-cycle engine in which a pair of cylinders 1 having a common combustion space are charged by a pump having oppositelymoving pistons 2 connected to a pair of rocking- beams 8. Rotary valves 4, driven at the speed of the crank shaft, are located one at each end of the pump delivery passage 22. Towards the end of the exhaust stroke, the lower valve 4 being closed, an air charge trapped between the valves is admitted to the cylinder for scavenging prior to the admission of the main charge.
Patent GB-1367172-A (GB)
Title: Pattern selecting devices for knitting
IPC: D04B15/78
Filed: 1972-03-30
Abstract: 1367172 Knitting-machines WILDT MELLOR BROMLEY Ltd 6 Dec 1972 [20 Dec 1971 30 March 1972] 59155/71 and 15006/72 Heading D1C A pattern device for a circular, flat or straight-bar machine comprises a butt-engaging arm 11 having a part 18 attractable between pole faces 15, 16 of a permanent magnet 14 by an electromagnetic coil 17. In a circular machine a bank of arms act on needle jack pressers. The arms may be pivoted about axes 13 radial or tangential to the needle cylinder. Electromagnets in the bank may be staggered, and so that the ends 12 have a common deflection despite arms of different length, the thicknesses of parts 18 or gaps between the pole faces differ. Alternatively the bank may comprise alternate one- and twoarm selectors (Fig. 11 not shown), or pivots at opposite ends of the bank (Fig. 12 not shown). In other embodiments the arms may comprise a clamped spring (Fig. 7 not shown), or a slidable member (Figs. 8-9 not shown). In the embodiment of Fig. 13 the arm 44 is housed in a slot and pivots about its lateral edge opposite the attracted part 52. Buttengaging parts 58 drop below butts 9. The arms are retained by a pin 48 in over-size holes 49. In a variant the butt-engaging and attracted parts are joined by a spindle. In a further embodiment the selectors comprise a bank of two-arm levers pivoted at their mid points on a vertical axle. One arm engages the butts, the other is attracted by the magnetic-device.