baber/WOPTO huggingface dataset:
Patent GB-261893-A (GB)
Title: Improvements in or relating to wireless receiving apparatus
IPC: H04B1/26
Filed: 1925-10-19
Abstract: 261,893. Forbes, S. L. Oct. 19, 1925. Thermionic amplifiers, detectors, and heterodyne receivers. - Switching arrangements are provided for converting a superheterodyne or like wireless receiver into an ordinary receiver. The complete set may comprise a first detector c, local oscillator j, long-wave amplifiers k, second detector l and note magnifiers f<1>, f<2>. The aerial a is tuned by a condenser a<2> and its mid-point is connected to the filaments through a coil b coupled to the local oscillator circuit j<1>, j<2>. The ends of the aerial coil are connected respectively to the grid of valve c through a condenser and leak and to the plate through a reaction control condenser c<1>. The long-wave beat is transferred by coil d to the valves k. When in use as a supersonic receiver, the switch e connects the plate of valve c through the coil d to the HT battery lead 4. To use the circuit as a straight receiver the valves j, k are turned out by a common rheostat or switch m and the switch e is moved to connect the low-frequency transformer f between the coil d and the HT battery. The switches e, m may be combined in a single switch. Grid-bias for the long-wave amplifiers k is taken from a potentiometer n across the filament battery, a by-pass condenser n' being provided. A switch g enables one or both magnifiers to be used at will. In a modification, means are provided for connecting the frame aerial to the grid of the second detector l or of one of the long-wave amplifiers k, when the set is to function as a straight receiver. When using an extended aerial, it may be connected to an intermediate point on the frame coil, and the middle tapping may be earthed; or a tapped inductance coil may replace the frame aerial. An untuned aerial may include a small coil loosely coupled to the frame aerial, or to a secondary tuned circuit.
Patent GB-989726-A (GB)
Title: Polyamide-containing compositions and articles made therefrom
IPC: D01F6/72
Filed: 1961-07-19
Abstract: A solution from which filaments and films can be made by extrusion through a shaping orifice into a coagulant comprises a linear filament-forming polyamide of terephthalic acid dissolved in fortified phosphoric acid of more than 86% by weight concentration. Example 1 describes the interfacial polymerization of hexamethylene diamine with terephthaloyl chloride.
Patent GB-1527046-A (GB)
Title: Driving device for lifting doors
IPC: E06B9/06
Filed: 1976-06-23
Abstract: 1527046 Operating doors CRAWFORD DOOR EUROPEAN CO AB 23 June 1976 [23 June 1975] 26204/76 Heading E2M In a device for operating roller-curtain doors a first flexible pulling wire or cable 9 is attached to the bottom of the door and a second flexible pulling wire or cable 10 is attached to a fastening member 11 attached to the top of the door by a pivoting hinge 13 (not shown) under the influence of a spring 16. A driving mechanism 21 is provided to operate the door through pulleys 6 and balancing springs 7. The axle 5 is driven by a drive means (not shown) e.g. an electrical power unit or a crank handle.
Patent GB-1017996-A (GB)
Title: An electronic control apparatus for straight bed knitting machines
IPC: D04B15/99
Filed: 1962-07-09
Abstract: 1,017,996. Knitting-machines. G. COLOMBO, and G.IPPOLITO. July 9, 1962 [July 12,1961], No. 26264/62. Heading DIC. A straight bed knitting machine having a carriage driven between limit switch positions has electronic control apparatus comprising a first electronic device having more than one stable state and sensitive to the influence of means on the carriage to detect when the carriage nears a limit switch location, a second electronic device connected to the first and having more than one stable state, the device being sensitive to signals received from the first device and producing signals which, when in co-incidence with the output signals of the first device produces a control signal for the means clutching the carriage to the carriage driving means. Three contactors 19, 20, 21 represent respectively the single stroke control, the stop control on thread breakage, and the control for continuous reciprocation. Contractors 4, 5 provide input signals to bi-stable circuit I at each end of the carriage stroke when a carriage mounted magnet passes the appropriately positioned contactor. When the AND gates 6 or 7 also receive signal 2 the right or left hand clutch 10 or 11 is actuated to move the carriage in the appropriate direction. Hence in the presence of signal 2 the carriage reciprocates. Bi-stable circuit III produces an  "allow" signal 3 which causes bi-stable circuit II, producing signals 2, 2, to switch at each switch of circuit I. In the absence of signal 2 the clutches are disconnected to free the carriage while signal 2 actuates an electromagnetic brake 17. Operation of switch 18a by the operator causes a single stroke. In a modification the braking may be achieved by a preset time control. The flip flop circuit III may be replaced by a bi-stable switch. The output signal 1 also operates a stroke counter 14.
Patent GB-1331553-A (GB)
Title: Shaft furnaces
IPC: F27B1/20
Filed: 1971-04-19
Abstract: 1331553 Charging blast furnaces DEMAG AG 19 April 1971 [4 April 1970] 26334/71 Heading F4B Apparatus for equalizing pressures in a blast furnace 2 and its charging hopper 1 includes a crude waste gas reservoir 22 fed from one of the offtakes 9 with a connection to the charging hopper 1 through valves 24 and 27, and gas cleaners 16 fed from offtakes 8, 9, 10 and 11 also having a connection to said charging hopper through valves 21 and 27. Owing to loss of pressure in the cleaners 16, the pressure at valve 21 is less than that at valve 24. An impulse from a pressure differential control 29 opens valve 21 admitting clean waste gas through pipe 18 and non-return valve 27 into the charging hopper. Later valve 24 is opened admitting crude waste gas into said charging hopper via pipe 32 valve 27 to equalize the pressure. The pipe 32 is of substantially greater diameter than pipe 18. To charge the hopper 1 sealing valve 3 is opened and relief valve 20 in an offtake 19 allows displaced gas to escape. Other relief or safety valves 13, 14 and 30 are provided in the system and valve 17 controls the passage of cleaned waste gas for conventional uses. Heavier particles are deposited in chamber 22 owing to the presence of baffles 25. In a modification (Fig. 2) the flap valves 3, 4, 5 and 6 are replaced by ball valves.
Patent GB-358224-A (GB)
Title: A method of protecting the image-bearing surface of cinema films
IPC: G03D15/00
Filed: 1930-09-06
Abstract: 358,224. Kinematograph picture Rims. DEMARET, O., 99, Rue Archimede, Brussels. Sept. 6, 1930, No. 26667. Convention date, Aug. 14. [Class 98 (ii).] The films are protected against scratching &c. by applying thereto a transparent smooth skin as of cellulose, either by attaching as by adhesive to the image face a preformed skin, or by coating the image face, or both faces, as with a cellulose varnish. Reference has been directed by the Comptroller to Specifications 14340/12, [Class 97 (i), Optical systems &c.], 18098/12, 29616/12, 22234/13, 7956/15, 184,495, 285,228, and 307,431, [all in Class 98 (ii), Photographic processes &c.].
Patent GB-208275-A (GB)
Title: Improvements in and relating to the manufacture of perambulator wheels and the like
IPC: B60B27/02
Filed: 1922-10-03
Abstract: 208,275. Austin, J. T. Oct. 3, 1922. Suspension - spoke wheels; hubs; spokes, securing; rims.-Tension-spoke wheels for perambulators and the like comprise a jointless rim 1, Fig. 5, spokes connected to the rim and to two pressed sheet metal collars 3, a tubular distance piece 6 forced between the collars to tension the spokes after they have been assembled and a bearing sleeve fitted within the distance piece. Washers 7 may be interposed between the ends of the sleeve 6 and the spoke collars. The ends of the spokes may be cranked or beaded. Fig. 9 shows two spokes 24 formed in a single piece the central part 23 lying in the bed of the rim. Fig. 11 shows a spoke in the form of a split pin, the inner end 25 being eyeleted and the outer end 26 formed by cranking the arms. Fig. 14 shows a construction in which the ends 29 of the spoke are split longitudinally and the tongues bent laterally. The spoke collars 3 may be cupped as in Fig. 5, and the edges slotted as at 4 to form an abutment for the headed ends 5 of the spokes. Fig. 7 shows another construction in which the cranked ends of the spokes are passed through holes 4 in the periphery of the collars and are retained by washers 9 with tongues 10 jamming the spoke ends between them in the tubular part 8 of the collar. In a modification, the end of the collar has tongues turned back to form slots to take the spokes and provide an abutment for their headed ends. The rim is formed from a. flat ring 1, Fig. 1, by spinning or otherwise working it into the form shown at A, cutting off the excess metal and turning up the edge B.
Patent GB-483966-A (GB)
Title: A rolling mill for the manufacture of gofering irons or sheets
IPC: B21H7/00
Filed: 1937-10-04
Abstract: 483,966. Roll - embossing. EISENWERKE AKT.-GES. KRIEGLACH. Oct. 4, 1937, No. 26772. Convention date, Oct. 5, 1936. [Class 83 (iv)] Goffering irons or sheets are rolled to form intersecting grooves therein by several arrangements of rolls as follows : the bottom rolls W<1>, W<2> of successive roll passes have oppositelyinclined grooves to impress crossed grooves on the underside only, whereby scale does not lodge in the grooves. Two superposed irons may be passed through a single roll pass Fig. 3, with oppositely-inclined grooves and then turned upside down and repassed through the rolls to impress crossing grooves on one side of each superposed iron ; or two superposed irons may be passed as in Fig. 5 and 6 through one pair of oppositely-inclined groove rolls and then through another pair of rolls with grooves to impress crossing grooves on both irons without turning over.
Patent GB-1147207-A (GB)
Title: Electric kitchen appliance
IPC: A47J43/044
Filed: 1966-06-14
Abstract: 1,147,207. Electric slicing knives. SUNBEAM CORP. 15 June, 1966 [16 June, 1965], No. 26788/66 Heading A4C. [Also in Division B1] A domestic hand-held mixer has at least one (as shown two) removable beater 11 and one or a pair of (oppositely reciprocating) knives 12 at the other end of the mixer. Each knife blade is retained in a carrier 30 by engagement of a lug 35 in an aperture 35<SP>1</SP> of a spring 34; depression of blade release buttons 42 acting on tongues 36 of springs 34 causes the latter to rock against the blades to separate the lug and aperture which are then moved out of register by spring 41. The blades are reciprocated by worm 26<SP>1</SP> driving worm gears 27<SP>1</SP> (Figs. 2 and 5, not shown) each of which has a depending pin 32 engaging in a block 43 slidable in a slot 33 in integral portions 30<SP>1</SP> of the blade carriers 30. The motor is controlled by a multispeed switch 24 for the beaters operated by a rotatable knob 25, in parallel with a thumb-pressure switch 37, 38 for the knives; when the beaters are ejected the switch 24, 25 is locked in the 'off' position so that the device with knives attached will not be inadvertently started by insertion of the electrical connecting plug in its socket.
Patent GB-152872-A (GB)
Title: Explosion gas turbines
IPC: F02C7/16
Filed: 1919-11-01
Abstract: 152,872. Davey, A. N. Nov. 1, 1919. Motor power plant; working-fluid supply; cooling parts.-In an internal-combustion turbine, the combustion chamber a, the nozzle j, and the turbine casing b are water-jacketed and the water therefrom is led to a regenerator c to which the exhaust gases pass by the pipe q leaving by the pipe r. Pipes l, n and p, o connect the water jackets together and to the regenerator. Steam raised in these sources may be used to drive a turbine or reciprocating engine actuating the compression pumps for the gas and air, or on the turbine blades, or otherwise. The valves e and d controlling the air and gas inlet ports g and the outlet port h respectively are actuated in the embodiment described by a motor i. The sparking-plug is indicated at k. The exit port h to the expanding nozzle j is shaped as shown in Fig. 2.
Patent GB-1507697-A (GB)
Title: Paraffinic base greases
IPC: C10M169/00
Filed: 1975-06-25
Abstract: 1507697 Lubricating grease MOBIL OIL CORP 25 June 1975 [1 July 1974] 26946/75 Heading C5F Lubricating grease comprises (i) a lubricating vehicle of which at least 30% (wt.) is paraffinic mineral lubricating oil, (ii) a thickener of a "complex" soap of Ca or Ca and Pb and (iii) a specific terpolymer. The "complex" soap is one formed from a mixture of acids, in particular from a mixture of acetic acid, caprylic acid and acids of higher molecular weight derived from natural oils. The terpolymer comprises (I) at least 65% (wt.) of ethylene, (2) at least 5% (wt.) of an ester selected from vinyl esters of saturated aliphatic carboxylic acids up to C 6 , alkyl acrylates and methacrylates and dialkyl maleates and fumarates in which the alkyl group has one to six carbon atoms, and (3) 0À01 to 3% (wt.) of monomer selected from acrylic, methacrylic, itaconic, maleic and fumaric acids, the anhydrides of itaconic and maleic acids, alkyl half-esters of maleic and fumaric acids, monoacrylates and monomethacrylates of glycols, 2-hydroxy-3-aminopropyl allyl ether, allylglycerol ether, divinylglycol, 2-dimethylaminomethyl acrylate, 2-dimethylaminoethyl methacrylate and N- vinylpyrrolidone. The grease is preferably made by the process of Specification 1,507,698.
Patent GB-1215929-A (GB)
Title: Starting aids for internal combustion engines
Inventor: CURZON THOMAS
IPC: F23Q7/00
Filed: 1967-06-12
Abstract: 1,215,929. Starting vaporizers. C.A.V. Ltd. May 27, 1968 [June 12, 1967], No.26974/67. Headings F1B and F1K. A starting aid comprises a tubular body part 10 one end of which is adapted for connection to a source of liquid fuel and the other end of which in use extends into the inlet manifold of an internal combustion engine (not shown) an electric heating element 20 surrounding the body part, a seating 12 defined in the bore of the body part near the other end thereof, a valve closure member 13 for co-operation with the seating and a stem 14 extending within the bore of the body part from near the one end thereof to the closure member, the valve closure member being mounted on the stem. The arrangement is such that upon energization of the heating element the body part attains a temperature such that the fuel within the body part is vaporized prior to the closure member being moved relative to the seating, thereby to permit the fuel vapour to pass into the inlet manifold. An extended portion of the heating element acts to ignite the vapourized fuel leaving the body part.
Patent GB-309513-A (GB)
Title: Improvements in and relating to the inking apparatus of printing presses
IPC: B41F31/30
Filed: 1927-10-12
Abstract: 309,513. B³ttner, A., and Schnell pressenfabrik Akt.-Ges. Heidelberg. Oct. 12, 1927. Inking-apparatus.-In a cylinder printing-machine in which the impression cylinder and the forme bed reciprocate in opposite directions, the forme is inked by a system of rollers moving with the impression cylinder and receiving ink from a supply system mounted out of their path of movement. The inking- roller system carried by the carriage l of the impression cylinder z includes the forme-inking-rollers a, a metal distributing cylinder a<1>, and a messenger roller b movable about a pivot b<1>, and the supply system includes a messenger roller d movable about a pivot d<1> and a metal distributing-cylinder c mounted to move about a pivot f and driven continuously by a train of gears. At the commencement of the printing stroke of the bed, the supply system is below the level of the forme s, providing for ready accessibility to insert or remove the forme, and at the end of the printing stroke, the cylinder c is raised and the rollers b, d are moved into contact therewith as shown in Fig. 2.
Patent GB-682779-A (GB)
Title: Improvements in closure means for pressure or vacuum vessels
IPC: A47J27/08
Filed: 1949-10-21
Abstract: 682,779. Covers for resisting fluid pressure. JENKINS & CO., Ltd. R., and OLDFIELD, G. H. Oct. 23, 1950 [Oct. 21, 1949], No. 27115/49. Class 123 (i) The hinged or lift-off door 8 is secured to its pressure or vacuum vessel 7 by a channel-shaped clamping ring 11 which is rotated to clamp together the flanges 9 and 10 of the door and vessel respectively, such flanges being of different diameter to, co-operate with different diameter flanges on the ring;, The flange 12 of the clamping ring is peripherally castellated to allow it to be passed through the like castellations, 13 of the flange 10 of the vessel before clamping, rotation by a tommy bar inserted in an eye 19 of the ring and into a corresponding eye 20 on the vessel which moves the chamfered. castellatioris relative to each other to effect the clamping against the sealing ring 21. The clamping ring 11 is secured loosely on the lid by lugs 15 welded .or screwed on the lid 8. The flange 10, is of greater diameter than the flange 9 Fig. 5 shows a sealing ring 21 for vacuum vessel and Fig. 6 shows a sealing ring 22 for a pressure vessel.
Patent GB-1358243-A (GB)
Title: Fuel cell battery
IPC: H01M8/247
Filed: 1972-06-09
Abstract: 1358243 Fuel cell batteries SIEMENS AG 9 June 1972 [11 June 1971] 27180/72 Heading H1B A fuel cell battery comprises a stack of cells each consisting of a pair of frame-like members 1 of plastics material adhesively secured by an epoxide resin at their opposed faces 8. Adjacent cells are separated from one another by an elastomeric frame member 13 surrounding a nickel contact plate 14 connecting the adjacent cells in series. The members 13 are adhesively secured to the members 1 and the resiliency of the elastomeric material of the members 13 enables them to act as buffers and compensate for the effects of varying thermal expansion and thickness variations in the stack members. The cells are sandwiched between end plates 22 (only one end shown) of steel coated with a plastics material 23 for electrical insulation, the plates being curved to exert a uniform pressure over the stack when clamped in position. Each pair of frame-like members 1 carries asbestos diaphragm 2 separated by a support 9 and defining an electrolyte chamber 15 or 18, the diaphragms being secured by adhesive in recesses 24. Electrolyte is delivered to the chambers 15, 18 by a main duct 4 extending through the stack and supply ducts 6. On the outer face of the asbestos diaphragms 2 of each cell are electrodes 10, 11 of pulverulent catalyst material which may be compacted with binders, the electrodes being supported by spacer gauges 12. Reactant gas chambers 16, 19, 20, 21 formed between the contact plates 14 and electrodes 10, 11 are supplied with gas from main ducts 5 and supply ducts 7. Thus, chamber 20 may be supplied with oxygen and chamber 16 with hydrogen. In a modification, the fuel is hydrazine and is dissolved in the electrolyte.
Patent GB-271841-A (GB)
Abstract: 271,841. Siemens & Halske Akt.-Ges- May 26. 1926, [Convention date]. Addition to 258,226. Thermometers.-In a device such as that described in the parent Specification two or more meter mechanisms are controlled together, e.g. by a single switch, so that they run for the same time. A meter for carbon dioxide, one for carbon monoxide and one for time are employed and they may be so connected that the heat lost in the exhaust gas and the loss by unconsumed gas are read separately and directly.
Patent GB-787695-A (GB)
Title: Improvements in condensers
IPC: H01G9/10
Filed: 1955-09-23
Abstract: 787,695. Electrolytic capacitors; mounting terminals. BRENNAN, J. B. Sept. 23, 1955, No. 27190/55. Classes 37 and 38 (1). An open-ended casing 10 housing an electrolytic capacitor is sealed by means of three discs 22, 24, 26 which rest in the casing upon an inwardly directed shoulder 12 and are compressed against this shoulder by an inwardly turned lip 28 at. the open end of the casing, the two outer discs 22, 24 being made of a non- resilient material and having a smaller diameter than that of the casing and the central disc 26 being made of a deformable resilient material, so that when the discs are compressed the central disc 26 is deformed so as to extend into the annular spaces between the discs 22, 24 and the wall of the casing. Provision is made for taking leads 16, 18 from the capacitor roll 14 through the sealing closure constituted by the discs 22, 24, 26. In the arrangement illustrated lead 16 is held in contact with the casing 10 while the lead 18 is led through apertures in the discs to terminate in a pin 42, the aperture in the disc 26 being in the form of a slit so that the resilient material presses tightly against the lead 18. In a second embodiment, Fig. 4 (not shown), both leads are taken to pins secured on the outer one of the three discs. In addition, to avoid the need for apertures in all three discs the leads are taken around the edge of the innermost disc, inwardly along its outer surface and then through apertures in the resilient disc and outer rigid disc. At least one lead is coated with a layer of insulation to prevent both leads making contact with the casing.
Patent GB-482956-A (GB)
Title: Improvements in oscillograph electric transient analysers
IPC: G01R13/32
Filed: 1936-10-07
Abstract: 482,956. Oscillographs. SCOLES, G. J., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Oct. 7, 1936, No. 27271. [Class 37] [Also in Group XL] An oscillograph transient analyzer comprises a cathode ray tube including a time-sweep circuit produced by charging and discharging a condenser, a resistance across the condenser being connected in series with a discharge tube which is ignited at the end of the effective sweep, the voltage developed across the resistor being employed to extinguish the spot to prevent burning of the screen and fogging of the oscillogram. A repeating peak-voltage generator 1, which may be of the kind described in Specification 482,957, [Group XXXV], supplies positive potentials to a negatively biassed grid-controlled discharge tube 5. The time-sweep circuit is indicated at 2 and a surge generator at 3, the latter being described in Specification 482,994. The time-sweep circuit comprises a condenser 8 which is charged through a resistor 7 until the discharge tube 10 ignites and maintains steady voltage conditions. The resulting potential across resistor 11 is applied through condenser 12 to extinguish the beam. A tripping impulse from generator 1 discharges condenser 8 through the tube 5 and the discharge tube 10 is extinguished, the spot again appearing on the screen and the timesweep recommencing. To improve the linearity of the time base, the resistor 7 may be a thermionic valve.
Patent GB-160721-A (GB)
Title: Improvements in cigar or cigarette holders
IPC: A24F13/10
Filed: 1920-09-24
Abstract: 160,721. Harnsberger, H. H. Sept. 24, 1920. Cigar and cigarette holders. - An ejector rod 6, formed with a ring or perforated disc 13 is operated by a sliding plate 9 which covers a recess 4 in the holder and may contain a retracting spring 10. The inner end of the rod 6. may be turned up and riveted to the plate, or screwed into, or clamped by, the forked end of a lug of the plate.
Patent GB-686052-A (GB)
Title: Improvements relating to driving mechanisms for rotary thread guides in weaving looms
IPC: D03D51/00
Filed: 1950-11-08
Abstract: 686,052. Leno shedding mechanism. SULZER FRERES SOC. ANON. Nov. 8, 1950 [Nov. 9, 1949], No. 27304/50. Class 142(i) Groups of shedding rings 23 for leno woven selvedges are rotated simultaneously, in half turn steps, by a shaft 24 driven through a Geneva mechanism, the slotted wheel 40 of which can be slid into the range of driving pegs 48 or 48a on oppositely-rotating gears 46, 47. A pattern mechanism, comprising a Geneva wheel 62 carrying studs 76, acts through a lever 67 to select the direction of rotation of the shedding ring, or to keep them stationary by placing the wheel 40 midway between the gears 46, 47.