baber/WOPTO huggingface dataset:
Patent GB-332252-A (GB)
Title: Improvements in or relating to carburetters for internal combustion engines
IPC: F02M7/08
Filed: 1929-01-18
Abstract: 332,252. Amalgamated Carburetters, Ltd., and Brown, C. Jan. 18, 1929. S p r i n g - actuated pumps.-To facilitate engine acceleration, fuel is forced through a separate nozzle by a member actuated from the throttle valve through resilient means, the straining of which during opening movement of the throttle causes fuel to be discharged over a period independent of the throttle movement. A member b, Figs. 3, 5, adjustably clamped to the throttle valve spindle, is adapted to displace a spring-loaded arm c pivoted freely on the spindle housing, and connected through a link e with a member f inside a piston g which serves to inject the additional fuel. Between the member f and the bottom of the piston is a spring h which, during opening movement of the throttle, is compressed but subsequently recovers its original form and during this period injects the fuel. The period of throttle movement during which injection occurs may be varied by adjusting the arm b. Fuel enters the cylinder below the piston g from the float chamber p through a duct q provided with a ball valve r. The displaced fuel passes by way of a conduit k, Fig. 5, and duct l<1> to the injection nozzle. A ball valve l at the top of conduit k is adapted on a forcing stroke to close a vent o to atmosphere, and at other times to prevent a return flow of fuel. In a modification, Figs. 8, 9 (not shown), the piston g is actuated during the early part of the throttle opening, its movement being checked by a stop while the opening of the throttle valve continues. Specification 320,848, [Class 7 (iii), Internal-combustion engines, Carburetting-apparatus &c. for], is referred to.
Patent GB-965186-A (GB)
Title: Improvements in or relating to two-way communication telephone systems
IPC: H04M9/08
Filed: 1962-01-17
Abstract: 965,186. Echo suppressors. MODERN TELEPHONES (GREAT BRITAIN) Ltd., and M. MILLETT. Jan. 17, 1963 [Jan. 17, 1962], No. 1763/62. Headings H4K and H4R. An echo suppressor for a four-wire telephone communication system comprises a transistor arranged as a switching device to increase the attenuation of the transmission path from a telephone station in response to a control signal, derived by rectification of signals in the transmission path to the station, applied to the base of the transistor. Fig. 2 shows the switching transistor 21 having the signal input to the telephone set on lines 15a and 15b rectified in the voltage doubler-rectifier 26 to 29 and applied to the base 25 of the transistor, the emitter is connected via capacitor 32 to a point in the telephone set output circuit so that while the transistor is cut-off, i.e. no signal input on lines 15a and 15b, the shunting effect of the circuit is that due only to resistor 22 and negligible, while with the transistor conducting i.e. signal present on lines 15a and 15b, the line 19 is effectively earthed to A.C. via the emitter and collector junctions of the transistor. Three alternative methods of connection of the suppressor circuit in the outgoing line are shown. Fig. 3 shows line 19 from the suppressor circuit in shunt to the line from the microphone 37 to the receiver 38 at the other station. Fig. 4 shows a system in which the transistor is connected via lead 19 to short-circuit a winding 49 on a transformer connected in the transmission path from the microphone. Fig. 5 shows a system in which the suppressor circuit on lead 19 presents a low impedance to the A.C. signal on the base of transistor 54 in a two-stage amplifier circuit, thus reducing the gain of the amplifier.
Patent GB-375363-A (GB)
Title: Process for the manufacture of hormone like substances
Filed: 1931-01-19
Abstract: Substances similar in their action to female sexual hormone are obtained from coal or mineral oil, or their distillation products by extraction with one or more volatile organic solvents.  The process may also include the step of extraction with an alkali and acidification of the extract so obtained.  According to examples (1) coal is extracted with chloroform and the extract taken up with alcohol; (2) brown coal is extracted with caustic soda, the extract is acidified and further extracted with ether, and the residue after distilling off the ether is finally extracted with 80 per cent aqueous methanol; (3) Roumanian petroleum is extracted with aqueous ethanol or aqueous acetone, the extract is evaporated and extracted with benzene, the benzene solution is extracted with soda lye, and the solution so obtained is acidified and extracted with ether; (4) a coal tar oil fraction is extracted with a mixture of ethanol and ether and the extract is evaporated and extracted with aqueous ethanol; (5) "Naphthalan" (a Caucasian petroleum product containing soap) is ground with kieselguhr and extracted with a mixture of methanol and ether and the extract is evaporated and further extracted with methanol; (6) a distillation fraction of Russian petroleum is extracted with a mixture of ethanol and ether.
Patent GB-1405011-A (GB)
Title: Ignition distributors
IPC: F02P7/02
Filed: 1972-01-14
Abstract: 1405011 Rotary distibutors LUCAS ELECTRICAL CO Ltd 27 Dec 1972 [14 Jan 1972] 1834/72 Heading H1N An ignition distributor includes a hollow easing 11 closed at one end by a detachable insulating cap 12, a rotatable shaft 15 supported by the casing and carrying a rotor arm 16 cooperable with high tension electrodes 14 carried by the cap, and an ignition coil having two separable parts, a first part 19 including a core component 21 and a primary winding 22 and a second part 23 including a core component 24 and a secondary winding 25, the two parts being located to constitute an ignition coil by the attachment of said distributor cap 12 to said casing 11. Each coil part is preferably encapsulated in synthetic resin and is detachably secured in the casing and cap respectively. A non-magnetic spacer (26, Fig. 2, not shown) is provided between the abutting faces of the core components 21 and 24, and is preferably of conductive material, e.g. brass, so that the core components are electrically interconnected in use.
Patent GB-391551-A (GB)
Title: Improvements in vehicle bodies
IPC: B60J7/12
Filed: 1932-01-21
Abstract: 391,551. Road vehicles. SMITH, F. P., 264, Broad Street, Birmingham. Jan. 21, 1932, No. 1840. [Classes 103 (ii) and 108 (i).] A motor-car is adapted for use as an open two-seater, an open four-seater with the rear seat in the orthodox low position, and as a closed vehicle, a hood being provided adapted to be collapsed into, and totally enclosed within, a compartment at the rear of the body. The hood comprises a rigid back 26 carried by arms 29 pivoted at 30 and linkage 31 of known kind pivoted to the rigid back and carrying the roof cover 32. The hood is adapted to be folded into a rear compartment 46 closable by a lid 47 pivoted at 48 and the hood is provided with arms 34 pivoted as shown and having a spring arrangement which is stressed on folding the hood to assist in erection of the hood. The compartment 13 containing the rear seat is adapted to be closed when the car is in use as an open two-seater by a cover 14 which comprises the back of the rear seat and can be raised on links 19, 20 as desired. The hood linkage 31 has pivoted thereto brackets 39 to which are connected by dowels 54 side pillars 40 adapted to be erected on the body sides by dowels 41. A luggage or spare wheel recess 50 with closure 52 is provided as shown.
Patent GB-449486-A (GB)
Title: Improvements relating to the manufacture of corrugated metal tubes
IPC: B21D15/04
Filed: 1935-01-19
Abstract: 449,486. Making finned corrugated tubes. RENARD, J. F. H., 17, Westbourne Park Road, Paddington, London. Jan. 19, 1935, No. 1853. [Classes 83 (ii) and 83 (iv)] Helical corrugations which are subsequently crinkled are made in a tube a rotated and moved axially by a chuck c actuated from shafts e, h driven by an electromotor d, by rollers o, p, engaging the outside and inside of the tube. The inner rollers p are carried on a head w on a mandrel k withdrawable by a pinion m. The shafts e, h, k are carried in a swinging head. The outer rollers may be adjusted by a rotated cam v. The tube is electrically heated at 4. A fin or wire may be fed from a reel 38 into the groove of the corrugation and secured by a roller which engages the outside of the corrugation to crinkle the walls of the corrugation. A knife associated with the outer rollers may be provided for severing the tube or the fin. The corrugating oval tubes the outside roller is adjusted radially by the oscillation of a cam housing v<1> by a cam 35. The inner rollers p are carried on links oscillated by a cam w.
Patent GB-595115-A (GB)
Title: Improvements connected with machines for the grinding of crankshafts, eccentrics or the like
IPC: B24B5/42
Filed: 1946-01-19
Abstract: 595,115. Grinding crank pins. BEECH, W. R. Jan. 19, 1946, No. 1859. [Class 60] A machine for the grinding of crank-shafts, eccentrics or the like is characterised by a driving wheel having a resilient tyre thereon, a grinding-wheel in frictional contact with said driving wheel, a pivotally-mounted support for said driving wheel and grinding-wheel, so that the grinding and driving wheels will follow the throw of the crank or the like, a member adapted to engage the crank-pin or the like to retain same in contact with the grinding-wheel and means for setting the cut on the grinding- wheel. Crank-shaft 3 is mounted between centres carried by a slide 4 movable on machine bed 4<1> ; a grinding-wheel 7 is mounted at the end of a beam 5 pivoted at 10 to links 6 pivotally secured to a carrier 2 ; the carrier 2 has wheels 24 running on machine frame 1, movement axially of the crank-shaft for positioning or traversing being effected by a hand wheel 25 and gear 27 meshing with a fixed rack ; an electric motor 13 secured to the carrier drives, through shaft 12 (which forms the pivot for the links 6) and pulley 11 secured thereon, a pulley integral with wheel 8, the resilient tyre 30 of which frictionally engages the periphery of the grinding-wheel to drive it. The beam carries leaf springs 22 engaging the free ends of links 23 pivotally secured to the carrier 2, this arrangement counteracting the weight of the grinding-wheel. The other end of the beam has pivotally secured thereto a lever 15 adjustable by means of screw 19 co-operating with the guard to put on cut ; the lever carries a V-block 17 embracing the crank-pin 16, a clamping lever 20 being operated by means of a hand wheel 21. The resilient tyre 30 may be a pneumatic one. Specification 595,114 is referred to.
Patent GB-398388-A (GB)
Title: Inflatable air container for use in bathing suits and beach suits
IPC: B63C9/15
Filed: 1933-01-20
Abstract: 398,388. Bathing suits. MILNE, W., Nooklands, Dumbarton. Jan. 20, 1933, No. 1888. [Class 141.] An air belt intended to be placed in a pocket in a bathing suit, such as described in Specification 390,433, comprises two rubber panels 1, 2 joined together along their edges 3 and along distributed transverse strips 4 which stop short of the edges 3 so as to provide ports 4<1> interconnecting the compartments formed between the strips.
Patent GB-442623-A (GB)
Title: An improved process for the production of a neutral mixed fertiliser
IPC: C05B1/04
Filed: 1935-01-22
Abstract: A neutral mixed fertilizer is obtained by forming mono-calcium phosphate into a sludge or paste with an ammonium phosphate containing mother liquor produced in the process, the molecular ratio NH3 : PO4 in this liquor being between 2 : 1 and 1 : 1, and introducing so much gaseous ammonia into the sludge &c. at a constant normal or elevated temperature that the ratio NH3 : PO4 in the liquor is kept constant, the precipitated bodies being separated and if necessary dried to form a fertilizer, while the mother liquor is returned to the process after the quantity thereof has been adjusted to the initial amount, if necessary, by evaporation.  The product contains di-calcium phosphate and mono- or di-ammonium phosphate. Other fertilizer salts, such as ammonium or potassium salts, may be added to the separated precipitated bodies before or after drying, or may be introduced into the circulating mother liquor with the mono-calcium phosphate.  Nitric acid may be added to the sludge or paste before the neutralization with ammonia.  The solid mixture of salts obtained may be treated with gaseous ammonia before, during, or after drying.ALSO:A neutral mixed fertilizer is obtained by forming mono-calcium phosphate into a sludge or paste with an ammonium phosphate containing mother liquor produced in the process the molecular ratio NH3 : PO4 in this liquor being between 2 : 1 and 1 : 1, and introducing so much gaseous ammonia into the sludge &c. at a constant normal or elevated temperature that the ratio NH3 : PO4 in the liquor is kept constant, the precipitated bodies being separated and if necessary dried to form a fertilizer while the mother liquor is returned to the process after the quantity thereof has been adjusted to the initial amount, if necessary, by evaporation.  The product contains di-calcium phosphate and mono- or di-ammonium phosphate. Other fertilizer salts, such as ammonium or potassium salts, may be added to the separated precipitated bodies before or after drying, or may be introduced into the circulating mother liquor with the monocalcium phosphate.  Nitric acid may be added to the sludge or paste before the neutralization with ammonia.  The solid mixture of salts obtained may be treated with gaseous ammonia before, during, or after drying.
Patent GB-754220-A (GB)
Title: Improvements in or relating to screen stencil-printing machines
IPC: B41F15/42
Filed: 1954-01-23
Abstract: 754,220. Stencilling-machines. McLAURIN, J. N. Jan. 21, 1955 [Jan. 23, 1954], No. 2099/54. Class 100 (2). A screen stencilling-machine comprises a screen frame 2, Fig. 1, pivotally mounted at 3 to one end of a table 5 and counterbalanced by a weight 4 so that it normally tilts upwardly, a resilient squeegee 21, Fig. 5, and a colour scoop 25 mounted together for rocking movement on a cross-shaft 11 forming part of a carriage 12 reciprocable overthe screen by mechanism driven by an electric motor 1 and a switch 33 controlled by the tilting movement of the frame to stop the motor when the frame is released for upward movement at the end of the printing stroke. The scoop is pivotally carried on an arm 27 fast with shaft 11 and biased by a spring 28 into engagement with the surface of the screen. The squeegee is mounted on an arm 22 loosely mounted on shaft 11 and is pressed by a screw 23a into contact with the screen, the screw being mounted on an arm 23 fast with shaft 11 and adjusted to control the contact pressure of the squeegee. The shaft 11 is connected by arms 17, Fig. 2, at each end to points on chains 18 which pass over pulleys 19, 20 at each end of frame 2 and are driven by motor 1. As the chains move, the carriage 12 is reciprocated to and fro over the screen along its guides 13. At each end of the stroke, the points of connection of arms 17 to the chains pass round the pulleys and cause the shaft 11 to rock, lifting the squeegee out of engagement with the screen at the end of the printing stroke and lowering it back into operative position at the end of the idle stroke. At the end of the printing stroke the carriage displaces a member 15 connected by a rod or cable 16 to release a catch 6 which serves to hold the frame in the printing position. As a consequence the frame automatically tilts upwardly and switches off the motor. The inertia of the mechanism causes some further movement after the motor is switched off so that the shaft 11 is rocked to lift the squeegee and lower the scoop on to the screen and cause it to commence the idle stroke. After a new sheet of paper has been placed on the table and the frame brought down to the printing position, the switch 33 closes and the motor re-starts, causing the carriage to complete the idle stroke and the following printing stroke. During the first part of the idle stroke the scoop descends behind the pool of colour left by the squeegee and picks some of it up, and during the remainder of the idle stroke the scoop is lifted to retain the colour therein, by a rail 30 which engages a pin projecting from the scoop. Near the end of the stroke the scoop is released and deposits its charge of colour on the screen in front of the squeegee for the next stroke. A reservoir 31 of colour has a release valve which is opened momentarily during the first part of the idle stroke of the carriage to allow a further charge of colour to drop on to the screen in front of the scoop. Specification 702,866 is referred to.
Patent GB-606940-A (GB)
Title: Improvements in or relating to the extraction of penicillin
IPC: C07D499/18
Filed: 1946-01-22
Abstract: The extraction of penicillin from the acidified culture broth by organic solvents is facilitated by the addition of a small amount of an organic wetting agent to the broth before extraction of the penicillin.  Suitable wetting agents include alkali metal salts of higher aliphatic sulphonic and sulphuric acids and alkyl substituted aryl sulphonic acids.  Specified wetting agents are alkali metal mono-salts of mono-butyl diphenyl sulphonic acid ("Anesket"); alkali metal salts of alkylated aryl sulphonic acid (" Santomeroe "); alkali metal salts of polyalkyl substituted benzene sulphonic acid (" Ultrawet "); alkali metal salts of the dioctyl ester of sulfosuccinic acid (" Aerosol OT "); alkali metal salts of higher aliphatic sulphuric acids, such as that known under the Registered Trade Mark (" Tergitol 7 ") and the sodium salt of technical lauryl sulphate, known under the Registered Trade Mark (" Gardinol WA ").  Kelones and esters containing at least four carbon atoms are suitable solvents for the extraction; in particular methyl isobutyl ketone, methyl ethyl ketone, isopropyl acetate, butyl acetate amyl acetate and " Pentacetate " (acetates of mixed fine carbon alcohols derived from petroleum) are mentioned.  Examples are given in which (1) filtered penicillin broth is extracted with amyl acetate in the presence of " Aerosol OT," and (2) penicillin broth is extracted as in (1), using " Ultrawet " as the wetting agent.  Reference has been directed by the Comptroller to Specification 598,597.
Patent GB-1261544-A (GB)
Title: Improvements in or relating to the electrolyte treatment of metals and alloys
IPC: C23C22/60
Filed: 1969-01-15
Abstract: 1,261,544. Forming pratective oxide films. on metals. CENTRE BELGE D'ETUDE DE LA CURROSION. Jan.15, 1969 [Jan.16, 1968], No.2308/69. Heading C7U. A method of forming a pratective oxide skin on metals or alloys e.g. steel comprises alternately wetting the metal or alloy with an electrolyte and drying in a gaseous atmosphere until the measured electrode patential is stabilized between 0 and 300 m V in relation to a calomel electrode, in water or an electmelyte at pH 7. The electrolyte may be water or preferably an oxidizing electrolyte of aqueous AgNO 3  or H 2  O 2  at least one of the wetting steps may be electrolytic with the metal as the negative electrode. The workpiece is preferably pickled in a solution containing a reducing agent e.g. sodium bisulphite or a complexing agent e.g. acetic, benzoic, citric, formic, lactic, malic, oxalic picnic, pyragallic, stearic, tannic or tantaric acids or a cyanide. The process may also include treatment in salt solutions of the Pt group metals, Sb, Ag, As, Bi, Cd, Cu, Sn, Ni, Au, Pb, Se and Te when the reduced metal is deposited to improve the effectiveness of the oxide skin. Solutions of permanganates, bichromate, chromate, malylidate, tungstate, urandate, vanadate, hyperosmiate and pertechnetate may also be used to improve the oxide skin. The workpiece may be treated with these solutions prior to the wetting and drying stages or after the oxide formation e.g. by impregnating the workpiece with a reducing agent to deposit Ni from a Ni solution. Air or oxygen is preferably injected into the electrolyte solution to increase the oxidation rate and drying is preferably effected by infrared radiation. Wetting agents e.g. alcohols or sodium dodecyl benzenesulphonate may be added. As shown in Fig.4, the workpieces 13 mounted on rotating shaft 14 are alternately immersed in electrolyte 12 and dried by infrared lamp until the required electrode potential in relation to calomel electrodes 21 is reached.
Patent GB-1024311-A (GB)
Title: Splicer
Inventor: NELSON HARRY
IPC: B21D39/02
Filed: 1964-01-20
Abstract: 1,024,311. Jointing metal sheets. ENAMEL PRODUCTS & PLATING CO. Jan. 20, 1964, No. 2495/64. Headings B3A and B3J. [Also in Division F2] A machine for joining the overlapping ends of moving metal sheets 26, 27, Fig. 14 (not shown), comprises a punching roll 58 and a roll 41 with cavities 50 to receive the punching teeth 65 of roll 58, the teeth and cavities forming tabs 69 in the sheets and bending them towards the cavities, means 74 for folding the tabs against the sheets, and a second pair of rolls 100, 101 for applying pressure to the tabs, roll 101 having grooves 120 above the tabs to receive the upper surface of the sheets as the tabs are pressed into the lower surface, Fig. 15 (not shown), by roll 100. In its inoperative position, roll 58 is stationary, with a punchfree section of its periphery facing the moving sheet 26. The top roll 101 is released by turning eccentrics 110, Figs. 1 and 4 (not shown), and raised above the sheet by springs 114. Drive for the bottom roll 100 is through a wormgear 134, 137 and is transmitted, through gears 128 on the roll-shafts, to the top roll 101. Freely mounted on the shaft 57 of the punchroll 58 is a sprocket 140 bearing one element 142 of a one-revolution clutch, the other element 148 of which is splined to the shaft 57. This element is movable, against a biasing spring, Fig. 7 (not shown), from a position in which a tooth 150 on its surface engages a pocket 144 in a stationary bearing 143 to one in which an opposite tooth 149 engages the driven element 142, tooth 150 then travelling around the circumference of bearing 143 until it springs back into pocket 144. The lower roll 41 is driven by gears from the upper roll 58. Work strippers 73 are mounted on the bending bars 71, which are prevented by screw-threaded rods 83, 92 from deflecting. Guide-rolls 30-33 or plates are provided, and a staggered pattern, Fig. 16 (not shown), of tabs is formed.
Patent GB-251217-A (GB)
Title: Improvements in valve seat refacing tools
IPC: B23C3/05
Filed: 1926-01-28
Abstract: 251,217. Hall, J. Jan. 28, 1926. Portable turning - apparatus; cutters.-A tool for trueing valve seatings comprises a tubular member a, shouldered to receive a slotted blade holder d provided with an annular upper groove e of triangular section, and the cutters, which have projections m to engage the triangular groove, are clamped in the holder by means of a collar w. A locating stem c having a number of different diameters to suit valve guides of various sizes, is adjustably secured to the member a by set-screws f, g. The tool is rotated by means of a tommy-bar b.