baber/WOPTO huggingface dataset:
Patent GB-1481312-A (GB)
Title: Arrangement for correcting the proportion of air and fuel supplied to a combustion engine
IPC: F02M23/08
Filed: 1974-06-25
Abstract: 1481312 Treating I C engine charges X LAPRADE B LAPRADE and P GELE 25 June 1974 [27 June 1973 24 May 1974] 28235/74 Heading F1B [Also in Division G3] Auxiliary air is admitted to the inlet pipe 4 of an I.C. engine 1 through a pipe 7, the amount of air being controlled by a valve 8 which is actuated by a diaphragm 9 subject to the vacuum prevailing in the Venturi 22 of the carburetter 5, the effect of the vacuum being modulated by an electromagnetically operated valve 13 which is controlled by a sensor 14 in the exhaust pipe, the sensor providing an electric current which varies as a function of the composition of the exhaust gas. Air is supplied to valve 8 by engine driven pump 16, which may also supply air to afterburner 19. Sensor 14 is a zirconium oxide device, the output of which increases sharply when oxygen ceases to be present in the exhaust gas as a result of the engine receiving a stoichiometric mixture. Threshold detector 15 sends a pulse to open valve 13 when the signal from sensor 14 exceeds a first predetermined voltage and sends a closing pulse when the signal drops below a second predetermined value which is lower than the first value. Air is thus admitted to the inlet pipe when the mixture is richer than stoichiometric. Diaphragm 9 is biased to the closed position of valve 8 by a spring 21 which includes regulating means so that the valve does not open until a predetermined depression exists at the choke tube 22 and no additional air is admitted during idling or full throttle running. The carburetter is set to provide a relatively rich mixture e.g. 2 to 4% CO at idling. A buffer chamber 20 absorbs pulsations in the air supply. In a modification, Fig.2 (not shown) the valve (13) bleeds atmospheric air into the vacuum line, which includes a buffer chamber. The line 7 may include a throttle valve mechanically linked to the main throttle valve and also a cam operating an electrical switch which holds bleed valve 13 open during idling. In a second modification the electromagnetic valve is replaced by a bi-metal strip controlling the open end of a bleed pipe leading to the vacuum line, the strip being heated by a resistor supplied from sensor 14 via control unit 15. In a third modification Fig. 4 (not shown) a second valve is provided in line 7 and is arranged to close progressively as the vacuum in the inlet pipe increases. Fig. 5 (not shown) illustrates the two valves of (Fig. 4) combined into a single-valve unit. Fig. 6 shows the output of sensor 14 being filtered at 34, and compared in differential amplifier 37 with a stabilized adjustable reference voltage from 36. The output is compared at 38 with a sawtooth voltage from generator 39 to produce a train of fixed frequency square pulses of duration proportional to the voltage from amplifier 37. Pipe 7 may be branched to feed the inlet pipes of a multi-cylinder engine Fig. 8 (not shown) and each branch then includes a restrictor (41 - 44).
Patent GB-163065-A (GB)
Title: Improvements in and relating to lock stitch sewing machines
IPC: D05B57/12
Filed: 1919-11-14
Abstract: 163,065. Barry, H. A. L., Wakelin, A. J., and Silver Lock Stitch Sewing Machine Syndicate, Ltd. Nov. 14, 1919. Sewing - machines; lock-stitching by shuttles; governing needle thread; spools, winding.-A shuttle 23 is oscillated in an arcuate path by means of a lever 19 having two depending fingers 22 which embrace a sphericalsurfaced cam 18. A spool-win'der 32 can be turned about its pivot to bring the friction wheel 33 into contact with the hand-wheel 6 and can be locked in position by a screw 35. A presser-lifter 45 has a cam surface 44 by which, when the presser is raised, a pin 43 is pushed endwise and releases tension discs 37 from the normal pressure of a spring 41.
Patent GB-223416-A (GB)
Title: Improvements in and relating to dynamo electric machines
IPC: H02K1/28
Filed: 1923-11-10
Abstract: 223,416. English Electric Co., Ltd., Calverley, J. E., and Highfield, W. E. Nov. 10, 1923. Protective or safety devices, auxiliary; insulation. - In dynamoelectric machines wherein the rotor core is insulated from the external parts of the structure, means are provided for maintaining the core at a definite potential or in a definite potential relationship to some other part in or external to the machine. As applied to a set comprising two double-commutator machines 19, 27, Fig. 2, arranged on the same bed-plate 30 and in series, one brush 18 of the machine 19 is earthed and the insulated rotor core 24 is connected through a high resistance 31 to the conductor that connects the brushes 21, 22, and the rotor core of the machine 27 is similarly connected through a resistance 33 to the conductor connecting its two commutators. The conductor connecting the two machines in series through the interpole windings 26, 28 is connected through a high resistance 32 to the insulated bed-plate 30. The potential difference between either of the rotor cores and the external structure is thus limited to onequarter of the potential generated by the set. Fig. 3 shows two single-commutator machines arranged in series. The terminal brushes 36 of the set are both connected to the machine frame 39 through high resistances 38 and the rotor cores 41 are connected to the middle points of these resistances, with the same result as is obtained with the arrangement shown in Fig. 2. Connection with the core mav be obtained by a brush bearing on one of the shrink rings by which the core is secured to the hub.
Patent GB-647453-A (GB)
Title: Improvements in electro-magnetic solenoids for operating valves
Inventor: SAWYER WILFRED ALBERT
IPC: F16K31/06
Filed: 1948-11-02
Abstract: 647,453. Electromagnets. RHEOSTATIC CO., Ltd. Nov. 2, 1948, No. 28437. [Class 35] In A.C. electromagnets of the solenoid type to operate valves, chattering of the plunger is prevented by making the latter domed and shaded at its top portion. Figs. 1, 2 show a plunger 3 with a reduced portion at its top part which is finished with a dome 5 and which is provided with a shading ring 4. The valve is in the open position when the solenoid is energized against an extra weight 11 which load will prevent the possibility of residual magnetism retaining the plunger when the solenoid is deenergized. Any side-way vibration of the plunger against a sleeve 10 is prevented by pressure exerted on a conical face 9, Fig. 3 (not shown), by a spring 15 fixed to the bottom of the plunger 3.
Patent GB-250124-A (GB)
Title: A new or improved stand or support for cycles and like machines
IPC: B62H3/00
Filed: 1925-11-12
Abstract: 250,124. Hercules Cycle & Motor Co., Ltd., and Brotherton, E. Nov. 12, 1925. Stands.-A stand for use in displaying a cycle &c. in a show-room or shop comprises a jaw member a, mounted on a base b, and provided with grooves in which slide wedge-blocks e, which are preferably arranged in pairs, and are adapted to ride upon inclined surfaces at the bottoms of the grooves, whereby their recessed inner faces are moved so as to grip the rim j of the cycle wheel. The blocks of each pair are connected by a screw h passing through both parallel to the recessed inner faces, the screw being free to rotate in one block and being screwed into a tapped hole in the other, whereby the blocks aro traversed towards or away from each other to grip or release the wheel rim, the grooves in the jaws a tapering in depth from the ends to the centre.
Patent GB-286358-A (GB)
Abstract: 286,358. Carpmael, W., (I. G. Farbenindustrie Akt.-Ges.). Dec. 1, 1926. Naphthisatins are produced by treating naphthyloxaminic acid halogenides derived from primary naphthylamines with acid condensing agents such as aluminium or ferric chloride. The reaction may be directly effected with the solution or suspension of the oxaminic acid halogenide as obtained in its manufacture. According to examples, (1) #-naphthyloxaminic acid chloride is warmed with aluminium chloride and nitrobenzene; (2) alpha-naphthyloxaminic acid chloride is heated with aluminium chloride at 80-85‹ C.: (3) 8-chloro-1-naphthylamine hydrochloride is treated with oxalyl chloride in chlorbenzene and aluminium chloride added to the resulting solution of the oxaminic acid chloride: the 8-chlor- 1 : 2-naphthisatin is purified through the medium of its bisulphite compound : it yields 8-chlor-4- brom-1 : 2-naphthisatin by bromination. Other 8-halogen-1 : 2-naphthisatins. 5 : 8-dichlor-1 : 2- naphthisatin. and 8-methoxy-1 : 2-naphthisatin can be similarly obtained Naphthyloxaminic acid halogenides can be prepared according to the process of Specification 282,891, or according to methods analogous to the known method of producing phenyloxaminic acid chloride, namely, by treating the oxaminic acid with phosphorus pentachloride.
Patent GB-1045274-A (GB)
Title: Character display tubes
Inventor: KLEPP GEORGE FRANCIS
IPC: H01J17/49
Filed: 1962-07-26
Abstract: 1,045,274. Glow discharge lamps. STANDARD TELEPHONES & CABLES Ltd. July 19, 1963 [July 26, 1962], No. 28770/62. Heading H1D. Bare leads 15 to a plurality of cathodes in a gas-filled glow discharge tube are spaced between two adjacent members, one of which is conductive, at a distance therefrom which is too small to permit glow discharge on the leads. In a numeral indicator tube each cathode 11, Fig. 1 (not shown), is shaped in the form of a different numeral and has a pair of ears which are passed over metal rods 10 and clamped between ceramic collars 9 on the rods. A metal mesh anode 12 is either supported between pairs of ceramic washers on the rods 10 or welded to a metal cup 6 the base of which is shielded from the envelope base by a mica disc 8. An additional anode in the form of a mesh 12a (Fig. 1) or a numeral may be provided. The wall of the cup 6 is either displaced outwardly adjacent each stack of collars 9 or is slotted as shown and a channel-shaped member 13 welded over the slot. Two of the ceramic collars 9 are provided with extension pieces 16 having slots in which the leads 15 are supported at the requisite spacing from the stack of collars 9 and from the metal cup 6 or channel 13.
Patent GB-617882-A (GB)
Title: Improvements in or relating to record playing mechanism
IPC: G11B17/16
Filed: 1945-10-31
Abstract: 617,882. Magazine gramophones. METCALFE, C., and RAE, A. J. Oct. 31, 1945, No. 28833. [Class 40 (ii)] In a magazine gramophone of the type in which records are stored before play on a step 2 of a stationary centre post 3, the turntable 1 is provided with a sleeve 9 which is long enough to pass through all records on the turntable 1. The sleeve 9 has a flange 10 which may be connected to a recess in the turntable 1 by a pin (12, Fig. 2, not shown) to effect driving engagement. Associated apparatus is described in Specifications 562,650 and 617,864.
Patent GB-779548-A (GB)
Title: Improvements in or related to methods and apparatus for measuring material deliveredfrom textile machines
Inventor: FLECK WILLIAM
IPC: B65H63/06
Filed: 1952-11-15
Abstract: 779,548. Measuring continuous lengths. LINEN INDUSTRY RESEARCH ASSOCIATION. Nov. 16, 1953 [Nov. 15, 1952], No. 28856/52. Class 42 (2). [Also in Groups IX and XL (b)] In a method of measuring the amount of material delivered from a textile machine a lengthmeasuring device is driven at a speed proportional to the speed of the delivery mechanism of the machine and a detector device is operative to interrupt the drive to the measuring device when the material is not being delivered such that the measuring device indicates the amount of material which has been delivered. In the arrangement shown in Fig. 1 a pneumatic yarn detector head is used which consists of a fine jet of air passing through an orifice 1 in the bottom of a V-shaped guide 2 against which bears a yarn 3. The orifice 1 is connected to a bellows 5 and also through a capillary tube 6 to a supply of compressed air 7. A second identical orifice 8 is connected to a second bellows 10 and also to the supply 7 through a second capillary tube 11. A pre-set counter 22 is operated through wheel 21 and pawl 20 by pulses of compressed air from source 7 controlled by relay 16 operated by a cam 17 driven from the machine. When the yarn is missing or is stationary the pressure in the bellows 5 is substantially equal to that in the bellows 10, the lever 12 is then balanced and the relay 14 is closed thus preventing the operation of the counter 22. When the yarn is being wound its presence, under tension over the orifice 1, causes an increase in pressure in and expansion of the bellows 5 (Fig. 1) which moves the lever 12 to open the relay 14 and thus permit operation of the counter 22. When the counter 22 indicates that the desired length of yarn is on the package being wound a knife edge 24 is closed against the anvil 25 thus cutting or stopping the yarn 3. In the arrangement shown in Fig. 2 a photo-electric cell 27 is used to detect the presence or absence of the yarn 3. When the yarn is passing an alternating current is produced in the electric circuit due to the variation in the diameter of the yarn. This current keeps the contacts 35, 36 of relay 34 closed thus permitting the counter 40 to be operated through contacts 38 and 39 by the cam 37. When the yarn 3 is missing or stationary there is no signal in the electric circuit, the contacts of relay 34 open and the operation of the counter 40 ceases. An embodiment is also described which deals with a number of yarns. Specification 716,370, [Group IX], is referred to.
Patent GB-920511-A (GB)
Title: Audio modulation system
Inventor: WAYNE WILLIAM CHARLES
IPC: G10H1/043
Filed: 1959-08-24
Abstract: 920,511. Electrophonic musical instruments. BALDWIN PIANO CO. Aug. 24, 1959, No. 28879/59. Drawings to Specification. Class 88 (2). A range of audio-frequencies is divided into two or more channels and the signals in each channel are slightly shifted in frequency in one sense only, and the shifted signals are combined with the original unshifted signals. The frequency-shifting is effected by passing the signals through a phase-splitter to produce signals of the same frequencies but relatively displaced in n equal phases, where n is greater than 2, and then modulating these latter signals with nphase sub-audio-frequency signals. Successive octaves may be alternately sharpened and flattened in this way, the object being to produce an effect similar to that of a pipe organ. In the embodiment described, n is 3 and the sub-audiofrequency signals are produced by a three-phase oscillator comprising three valves connected in a ring.
Patent GB-1214116-A (GB)
Title: Improvements in and relating to magneto hydrodynamic apparatus
IPC: H02K44/08
Filed: 1969-06-09
Abstract: 1,214,116. Generators and pumps operating by electromagnetic interaction with fluids; electric couplings. COMPAGNIE GENERALE D'ELECTRICITE. 9 June, 1969 [7 June, 1968; 14 April, 1969], No. 29043/69. Headings H2A and H2E. Electrical connection to a gas plasma is effected through a jet of hot liquid metal directed into the plasma. In an MHD generator, an electrode comprises a jet of hot liquid metal directed from an external source into the interior of the duct carrying the working fluid Suitable metals are the alkali metals or gallium, indium, aluminium, tin or mercury, or a eutectic alloy of the alkali metals. If a seeding metal is used in the working fluid, it is preferably the same metal as is used for the liquid jet. If a seeding salt is used, it is preferably a salt of the metal used for the liquid jet. The liquid metal is obtained from a heated reservoir 1 and is passed through an orifice 6 of a delivery spout 5 into the duct, either by a pump 9, Fig. 3 (not shown), or by a high-pressure inert gas introduced into the reservoir through orifice 3. The delivery spout 5 and orifice 6 may have a lining of refractory, e.g. ceramic, material. To prevent condensation of the liquid metal in the jet, high-pressure inert gas is either introduced into the interior of the delivery spout (Fig. 3) or into the jet of liquid metal beyond the orifice 6, Fig. 4 (not shown). The direction of the jet may be varied by using a swivel device 13, Fig. 5 (not shown), in the delivery spout 5.
Patent GB-468174-A (GB)
Title: Improvements relating to cribs for children
IPC: A47D9/00
Filed: 1936-10-27
Abstract: 468,174. Adjustable bedsteads. PIMBURY, E. M. Oct. 27, 1936, No. 29146. [Class 52 (ii)] A rigid mattress frame is supported in a crib by transverse end bars 6 adjustable on notched corner posts 4.
Patent GB-207524-A (GB)
Title: Transformable load-hauling car body
IPC: B62D33/08
Filed: 1923-11-19
Abstract: 207,524. NÞgre, A. L. J. J. G. Nov. 21, 1922, [Convention date]. Advertising on vehicles; name and number plates.-The boards 11, 12 of a vehicle consisting of triple mesh matting may receive advertising matter by the formation of letters or designs bv means of balls which are inserted in the meshes.
Patent GB-722245-A (GB)
Title: An improved anti-shock device
IPC: H01H50/30
Filed: 1952-11-19
Abstract: 722,245. Locking rotary elements. ETABLISSEMENTS MERLIN & GERIN SOC. ANON. Nov. 19, 1952 [Nov. 21, 1951; Feb. 14, 1952], No. 29194/52. Class 80 (4) [Also in Group XXXVII] A device for preventing the rotation of a mass about an axis as a result of a shock or vibration and particularly applicable to electric circuit-breakers and contact makers comprises a rotary control member 5 adapted to be linked at 10 to the rotary mass to be actuated and having raised tenons 11, 12, 13, 14 on its surface adapted to be engaged by radially sliding weights 19, 20, 21, 22 in a fixed casing 1. The weights 19, 20, 21, 22 are acted upon by springs to be normally held clear of the tenons 11, 12, 13, 14 to allow free movement of the rotary control member 5. On the device being subjected to a shock or intense vibration, some or all of the weights are moved against their springs to enter the spaces between the tenons 11, 12, 13, 14 and lock the member 5 against movement. Additional locking weights 9 engaging in recesses 26, 27 in the tenons may be provided to move in a direction parallel to the axis of the rotary member 5. The control member 5 has secured to it an eccentric weight 6 which, by virtue of its inertia, may be arranged to delay any rotation of member 5 before the weights 19, 20, 21, 22 have had time to come into action. The weight 6 is also provided with recesses 7, 8 which co-operate with the weight 9 to provide limiting positions of the control member 5 corresponding, for example, to limiting positions of a switch member coupled thereto. Various other forms and arrangements of the blocking weights are described. The device may be conveniently applied to existing switches by replacing one bearing support of the switch-actuating spindle by a member incorporating the device.
Patent GB-940281-A (GB)
Title: Improvements relating to racks for bottles and the like
IPC: A47B73/00
Filed: 1961-08-12
Abstract: 940,281. Trolleys. C. A. MORRIS. Aug 10, 1962 [Aug. 12, 1961], No. 29200/61. Heading A4H. A wheeled trolley for bottles has a frame with front and rear panels between which are mounted sheet metal shelves 13 of W-section reinforced by inverted V-shaped members 15 and with turned over edges 14. Hand rails 17 are provided and partitions may be included. The bottles may rest against refrigerated panels.
Patent GB-170758-A (GB)
Title: Improvements in devices for cleansing railway milk cans
IPC: B08B9/08
Filed: 1920-10-15
Abstract: 170,758. Phillips, F. G. Oct. 15, 1920. Cans, cleaning.-An apparatus for cleaning milk-cans, in which steam and water are discharged from a fixed base-plate into the cans in a direction roughly parallel to their sides, comprises a base E dished as shown in Fig. 1 to receive baffle-plates G<2>, G<1> which are held by bolts G<4> passing through bosses G<3>. The baffle-plates cooperate with the dished side of the base to form annular orifices of different widths through which water from a pipe J and steam from pipe H are discharged.
Patent GB-617528-A (GB)
Title: Improvements in or relating to flexible bearings or mountings
IPC: F16F1/38
Filed: 1946-10-01
Abstract: 617,528. Resilient mountings. SILENTBLOC, Ltd., and MOORE, J. W. Oct. 1, 1946, No. 29216. [Class 108 (iii)] Relates to resilient mountings of the type having an outer internally-cylindrical member B, an inner externally-cylindrical member 1, and an interposed bushing C of rubber or like material which projects at one or both ends beyond the space between the members A, B. According to the invention, the mean hardness of the rubber constituting the projecting end or ends C<SP>2</SP>, Fig. 1, of the bushing is greater than that of the portion C<SP>1</SP> lying between the inner and outer members A, B. When assembled, the part C<SP>1</SP> may be radially compressed and axially elongated, and a gap C<SP>4</SP> is provided between the parts C<SP>2</SP> and the outer member B. In the modification shown in Fig. 4, the inner member B and the bushing C are made in two parts and the bushing C has projecting end flanges C<SP>1</SP> which lie against flanges A<SP>1</SP> formed on the outer member A. The bushings C are so dimensioned that, when assembled, they are compressed radially and elongated axially, a circumferential slot being formed in each bushing at the junction between the flange C<SP>1</SP> and the main part of the bushing so as to eliminate undesirable stress in the rubber at this point. The bushings may be bonded to the inner and outer members A, B instead of being radially compressed. The part of the bushing immediately surrounding the inner member may be made of harder rubber than that lying adjacent to the outer member; it may have a hardness approximating to that of the end portions or intermediate between that of the ends and the remainder of the bushing. Specifications 437,114, [Group XXIV], 610,955 and 617,527 are referred to.
Patent GB-193917-A (GB)
Title: Improved method of cementation of boron into the surface of iron or steel
IPC: C23C8/70
Filed: 1921-11-03
Abstract: 193,917. Miyaguchi, T. Nov. 3, 1921. Cementation.-A hard and tough surface layer is obtained in iron and steel or steel alloys by a cementation process in which the iron &c. is heated to a temperature of 800-900‹ C. in contact with carbon powder and boron oxide or other boron compound such as borax, or ferroboron in a reducing atmosphere such as a gas containing carbon monoxide. Parts of the surface not required to be affected are protected with clay. Specifications 19461/12 and 193,918 are referred to.
Patent GB-702359-A (GB)
Title: Improvements relating to non-linear electrical circuits
Inventor: CLAYDEN RONALD THOMAS
IPC: H04N5/202
Filed: 1950-03-22
Abstract: 702,359. Valve amplifying circuits. ELECTRIC & MUSICAL INDUSTRIES, Ltd. March 9, 1951 [March 22, 1950], No. 29343/51. Divided cut of 702,325. Drawings to Specification. Class 40 (6) In a circuit in which the gain rises as the input falls towards a minimum, the gain is reduced over a small range of signals above and including the minimum. The subject-matter of the Specification is identical with the description relating to Fig. 2 of Specification 702,325. Specification 449,242 also is referred to.
Patent GB-1273732-A (GB)
Title: Apparatus for maintaining a length of material on a predetermined path over a roller
Inventor: WALTON JAMES
IPC: B65H23/038
Filed: 1968-06-20
Abstract: 1,273,732. Guiding webs. WALMSLEYS (BURY) Ltd. 9 June, 1969 [20 June, 1968], No.29353/68. Heading B8R. [Also in Division F2] A roller 26, Fig. 1, having material passed thereover is supported by bearings 28, one of which is shown and is adjustable when the material deviates from a predetermined path so as to return said material to said predetermined path. The adjustable bearing 28 is carried by a casing 14 which is supported on a fixed member 12. In use when the material deviates from the predetermined path, a detector unit 24 causes a signal to be transmitted to a control cabinet 32 and pressurized air is supplied through conduits 34, 36 in order to raise the casing 14 above the fixed member 12 and to effect the sliding of the casing 14 by means of bellows 40 or 42, Fig. 3.