baber/WOPTO huggingface dataset:
Patent GB-1523512-A (GB)
Title: Closed loop air-fuel ratio control system for use with internal combustion engine
IPC: F02D43/00
Filed: 1976-02-03
Abstract: 1523512 Automatic control of exhaust gases NISSAN MOTOR CO Ltd 3 Feb 1976 [6 Feb 1975 20 June 1975] 04147/76 Heading G3R In a system in which the air/fuel ratio supplied to an engine, by injection or by a carburetter, is controlled in response to the integrated difference between the output of an exhaust gas sensor and a reference an additional signal, corresponding to the average value of the integrated signal, is added to the control signal. Fig. 3 is said to show a prior art system in which a fixed bias voltage, generated at 36, is added to proportional and integral terms of the error, derived at 30, to form a control signal at the output of 38. The bias is to prevent saturation of the circuits and the invention consists in the application of an alternative bias obtained by averaging the ingetrated error signal which depends upon component characteristics and is said to compensate for variations in them, obviating the need for manual adjustment. A capacitor in the averaging circuit is immediately charged at start up by another circuit, Fig. 6 (not shown).
Patent GB-470267-A (GB)
Title: Improvements in the treatment of slurry prior to calcination or calcination and sintering
IPC: C04B7/40
Filed: 1936-02-11
Abstract: <PICT:0470267/III/1> Cement slurry prior to calcination is formed into nodules and dried, and a part of the nodulated material, before it is calcined to any substantial extent is withdrawn and mixed with raw slurry to form a mixture which is converted into fresh nodules. As shown, raw slurry is nodulized in a drum a and the nodules pass to a dryer b in the form of a louvred shaft heated by waste gases from the rotary kiln d.  The dried nodules fall on to a jigging screen c, and the smaller nodules are separated and returned to the drum a as indicated by the arrows R, T.  Specification 404,018 is referred to.
Patent GB-1047503-A (GB)
IPC: D02G1/02
Filed: 1965-02-01
Abstract: 1,047,503. Spinning yarns; textile treating apparatus. E. I. DU PONT DE NEMOURS & CO. Feb. 1, 1965 [Feb. 10, 1964], No. 4220/65. Headings D1F, D1L and D1W. In the production of a balanced alternating twist plied yarn "structure" (which requires no binder, sizing agent or post-treatment such as heat-setting to retain its twist stability, although such may be exployed) an alternating twist is applied e.g. by means of a jet twister supplied with pulsating fluid, continuously or discontinuously along the length of at least one of a plurality of separate filamentary strands to provide adjacent portions therein having torque unbalance i.e. a marked tendency for succeeding portions to twist in opposite directions. If, say three, strands are so twisted, adjacent strand portions have twist correspondence but the periods of the adjacent strands are out of phase and/or the twists in adjacent strands may oppose provided there is unbalance. The strands are caused to merge and contact whilst simultaneously causing the torque unbalance to diminish whereby the adjacent strand portions become alternating twist plied about one another continuously or at intervals along the length of the yarn structure. Two or more of such "structures" may be combined e.g. by conventional plying. The strands may be crimped or uncrimped spun, monofilament or multifilament yarn, or roving, and the fibres thereof are man-made or natural e.g. of polyamides, polyamylonitrile or acrylonitrile copolymers, polyesters, polypropylene, regenerated cellulose or protein, cellulose acetate, polyvinylchloride or acetate, polyvinylidene cyanide or chloride or copolymers thereof, or wool, cotton, metal, glass, or combinations thereof, and additives such as delustrants, antioxidants and conventional finishers may be incorporated. A gang jet twister, Fig. 5 (not shown) comprises strand passageways 18 each intercepted by one portion of a divided fluid-conduit 19 communicating with a fluid manifold 26 by way of a rotatably driven helical valve 27.
Patent GB-229345-A (GB)
Title: Improvements in or relating to aerial machines
IPC: B64C3/00
Filed: 1925-02-16
Abstract: 229,345. Renard, A. Feb. 16, 1924, [Convention date]. Planes and the like, construction of.-In a metal wing the rib elements A, A' to the front and rear of, and between, the longitudinal spars L, L', are held together and reinforced by a metal band B which passes round the outside of the wing and also serves to cover the joints between the panels P forming the surface covering. The bands B are secured by rivets. The Specification as open to inspection under Sect. 91 (3) (a) states that a cement may be introduced between the bands B and the surface covering. This subject-matter does not appear in the Specification as accepted.
Patent GB-300436-A (GB)
Title: Improvements in and relating to printing machines
IPC: B41F3/80
Filed: 1928-02-10
Abstract: 300,436. James, R. W., (Hoe Corporation). Feb. 10, 1928. Printing-surfaces; blankets and the like. - A printing-press cylinder for supporting a printing- plate, blanket, or tympan consists of two semicylindrical shells relatively movable about the cylinder axis, the shells being provided with hubs so that one of the shells may be secured to and the other may be movable about, the haft. The hubs 15 of the movable shell 12 are provided with lugs 20 against each of which bears a screw 19 working in a lug on the bearer 16 at the adjacent end of the cylinder, and a spring 21 bearing at its other end on an abutment carried by the hub 13 of the fixed shell 11. Adjacent edges of the shells are recessed, and each recess is provided with a member 24 retained in place by a shaped plate or plates 26 and bolts 27, the member 24 being also recessed to accommodate another member 28 between which and a plate 29, secured in place by screws 30, the edge of the printing- plate is clamped. Springs act to move the plate 29 outwards when the screws 30 are loosened. The member 28 is provided at spaced intervals with a number of screw-threaded plugs 33 adapted to bear at their inner ends against the wall of the member 24 and adapted to be turned by hexagonal plugs 35. In each bearer is a largeheaded screw 38 bearing against both members 24. To enable a plate to be secured in position, the screws 19 are operated to enlarge the gap between the shells 11, 12 at the plate-clamping edges, and the printing-plate is secured between the member 26 and plates 29. The screws 19 are then operated to draw the plate tightly round the cylinder. Circumferential adjustment of the plate is effected by operation of the plugs 33, and longitudinal adjustment is obtained by movement of the screws 38. In an impression cylinder the blanket is secured to shafts mounted in the the shells and controlled by pawl-and-ratchet mechanism.
Patent GB-229348-A (GB)
Title: Electric drive for transmission gear-operated high-tension electric switch apparatus
IPC: H01H3/32
Filed: 1925-02-16
Abstract: 229,348. Maschinenfabrik Oerlikon. Feb. 14, 1924, [Convention date]. High-potential switches with electric motor actuation are provided with means for automaticall disconnecting the switch from the driving motor on failure of current therein; the switch being restored to the " off " position by springs or gravity. The motor 1 rotates the lever 10 operating the switch contacts 11 through pinion gears 2, 3, 5. The motor current also passes through an electromagnet 9 operating a spring- controlled clutch lever 7 bearing on the drum 6 so that if the current fails the lever 10 is disconnected from the drive and the contacts drop to the " off " position. The Specification as open to inspection under Sect. 91 (3) (a) also states that the electromagnetic clutching device may be replaced by a centrifugal clutch which disconnects the switch from the driving motor when its speed falls below a predetermined amount. This subject-matter does not appear in the Specification as accepted.
Patent GB-279303-A (GB)
Title: Improvements in and relating to photographic camera shutters
IPC: G03B9/22
Filed: 1927-02-16
Abstract: 279,303. Leemann, J. Feb. 16, 1927. Shutters with pivoting blades.-In shutter mechanism of the type in which a diaphragm is actuated by a push rod and a driving spring, the rod 1 is frictionally mounted on the spring box 2 so that it maintains its position to engage a notched member 4 fixed to the ring, until force is applied, as by engagement with a stud 5, to disengage the rod from the ring. The frictional engagement may be varied by slotting the pivoted end 2<a> of the rod and compressing it by a screw. A cam 7 on the box 2 drives an escapement wheel 15 through a train of gears, the wheel having the flanks on one side of its teeth set at a different angle from those on the other to engage pallets having their faces set at corresponding angles, resetting by a spring 19 thus being effected more easily. The power of the spring 19 is regulated by a ratchet wheel 20a rotatable in one direction by a screw slot 20b and held by a pawl 22. The cam 25 regulating the escapement engages a stud 30 on a wheel 11 of the gear train.
Patent GB-338082-A (GB)
Title: Improvements in stockings and socks
IPC: A41B11/12
Filed: 1930-02-10
Abstract: 338,082. Kramer, A., and Kramer, N., (trading as Kramer, A. & N.). Feb. 10, 1930. Stockings and socks. - The lining c of the top edge b, and the outside edging d of woollen stockings &c. are made of a yarn comprising a mixture of wool, cotton and artificial silk &c., in a natural or dyed state. The Figure shows a stocking inside out..
Patent GB-162129-A (GB)
Title: A new or improved appliance for playing games
IPC: A63F9/14
Filed: 1920-02-14
Abstract: 162,129. Longstaff, E., and Culpin, H. Feb. 14, 1920. Mechanical race games.- Relates to apparatus of the type in which miniature race horses are drawn over a sinuous course by means of cords and consists in providing a separate winding spindle for each cord. As shown, the table 1-4, Fig. 2, is formed with a sinuous course having grooves 5-14 within which are fitted blocks 16, Fig. 6, carrying rotatable rods 17 upon which the racehorses 15 are mounted. The cords 18 are attached to the ends of the racehorse blocks and to winding-reels 31 which are slidably mounted upon the spindles 19-28. The spindles are contained within casings arranged beneath the table and are operated by hand-wheels 29. Two sets of spindles and reels are provided one at each side of the table so that races may be run in either direction over the course. The reels are formed with clutch-members 33 which may be engaged with pins 32 carried by the spindles by means of devices consisting of slidable bars 34 arranged at each side of the table and carrying bars 38 having inclined plates 39 which engage with the flanges 40 of the reel-clutches. The slidable bars are actuated by levers 35 controlled by the attendant. In a modification, in which races are run in one direction only over the course, the spindles on the side 1-2 of the table are dispensed with and means is provided for returning the racehorses to the starting point after a race. As shown, a shelf 42, Fig. 8, is provided beneath the portion 1-2 of the table and having grooves 43 within which are fitted slidable blocks 44. The blocks are connected to the racehorse-blocks by cords 45 the other ends of which are passed over pulleys 47 carried by the blocks and attached to the shelf. A cross-bar 49 resting across the shelf is drawn alcng by a cord 49<a> attached to a'drum 50 which is actuated by an electric motor 51, and so moves the blocks 44 so that the racehorses are returned to the starting point. The bar is returned to its normal position by a weight 53. Ball-bearings may be placed between the racehorse-blocks and the grooves in the course and metal tubes may be arranged around the curved portions of the track to guide the cords. An automatic indicator may be provided at each end of the table to record the first three horses in a race.
Patent GB-177339-A (GB)
Title: Improvements in or connected with stop cocks or valves
IPC: F16K27/12
Filed: 1921-02-09
Abstract: 177,339. Butler, B., and Butler, W. Feb. 9, 1921. Leakage, stopping and preventing.-In valves of the type described i n Specification 145,148, means are provided for locking the nut that covers the stuffing-box, to the casing. The upper part of the casing a screws into the lower part b, and is provided with a flange a<1>. The collar d<1> on the screwed spindle d is supported by the part a, and carries a fibre ring or other packing g. A ring g<1> of phosphor bronze is interposed between the packing and a sleeve h, which may be rounded at the top and bottom. The nut e is provided with a flange e<1> which is drilled with a number of holes e<2>, say six, while the flange a<1> is drilled with seven holes a<2>. The pressure on the packing may be adjusted by screwing down the nut e and the nut may be locked when any two of the holes a<2>, e<2> are in register, by a split pin i, or a screw or other locking-device i<x>, Fig. 5.
Patent GB-608057-A (GB)
Title: Improvements in or relating to refrigerating apparatus
IPC: F25D17/02
Filed: 1946-02-14
Abstract: 608,057. Refrigerators. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Feb. 14, 1946, No. 4651. Convention date, Feb. 6, 1945. [Class 29] A refrigerated storage tank for drinking water, fed through a ball cock 19, has a thermostatically controlled valve 24 in series with the ball cock to control the admission of water according to the temperature of the water in the tank. From the ball cock the water passes to a pipe 22 having a constantly open restricted byepass 23 and a casing 26 containing a thermostatic bellows 27 operating the valve 24. The water is cooled by an evaporator 12 and the thermostatic valve prevents more-water being admitted than the evaporator can cool to the required temperature. The bye-pass 23 comprises a capillary tube. An agitator 15 circulates the water.
Patent GB-933635-A (GB)
Title: An arrangement for controlling electrically driven line-spacing devices on typewriters
Filed: 1960-02-10
Abstract: 933,635. Typewriters &c. OLYMPIA WERKE A.G. Feb. 10, 1960 [June 8, 1959], No. 4695/60. Class 100 (4). A control relay operated line feed device is provided with a control device which by means of a keyboard can be set to a programme which will stop the feed to allow printing in the desired lines. The control device also controls tabulation. Keys are provided to effect linespacing with or without carriage return by energizing a control relay which actuates a clutch to engage the carriage drawband. The control device comprises a stepping mechanism 700, Fig. 2, an arm 122 of which is stepped by operation of a magnet M 2  when a magnet M 3  has coupled it to a ratchet wheel 125, over contacts K201-K270 and a contact disc ZK. The contacts K201-K270 are connected by lines L201-L270 to a contact of a pair which can be opened by operation of a key of the keyboard. In a next position a spring 141 holds the arm 122 out of contact with any other contacts. After paper has been introduced into the machine in the usual way and the keyboard has been operated to open the pairs of contacts corresponding to the lines on which printing is desired a switch is closed and the magnet M 3  operates so that contact is made with the contact K201 and if the corresponding pair of contacts has not been opened, stepping will occur and the control relay will be operated to effect line feed which sequence will continue until a contact connected to an opened pair is reached at which point feed is stopped. After printing on the desired line the sequence will be repeated until the programme is completed and a contact O is reached which causes a relay Rv to operate to reset the keyboard and de-energize the magnet M 3  so that no contact is made with K201 when the arm 122 makes one further step and the mechanism regains its rest position. Keys and keyboards.-The keyboard comprises soft iron plates 2, 3, Fig. 4, connected by pins 4 which act as cores for coils 5. The keys 6 have associated insulating pins 7, pins 8 and springs 9 and on depression the corresponding pair of contacts 12, 13 are opened against the action of springs 11, 14 and the key 6 contacts a plate 10 in which position the initial air gap is so reduced that it is held in this position against the action of the spring 9 until rV 1  is opened to de-energize the coil 5 and re-set the keyboard. The keys may be provided with remote electrical control. Tabulation.-When line-spacing has been stopped in the desired line depression of a tabulation key causes a relay to operate to release the loose dog from the escapement. Tabulation movement occurs until a mark in the desired column is sensed and causes the relay to release and the loose dog to stop further escapement. Specification 845,388 is referred to.
Patent GB-742940-A (GB)
Title: Improvements in gas cookers
IPC: F24C15/12
Filed: 1953-02-20
Abstract: 742,940. Gas cooking-stoves. TURLEY & WILLIAMS, Ltd., SMITH, C. D., and OTTON, D. H. May 19, 1954 [Feb. 20, 1953], No. 4748/53. Class 126. Flat plates c with downwardly directed flanges are secured to wire frames c<SP>2</SP> provided with downwardly projecting legs c<SP>3</SP> which engage brackets b projecting from the sides of a cooker hot plate a<SP>1</SP> so that the plates form extension hobs flush with the hot plate, or serve as covers for the hot plate.
Patent GB-375241-A (GB)
Title: An improved apparatus for treating flexible sheet materials with liquids
IPC: D06B3/10
Filed: 1931-03-27
Abstract: Apparatus for treating sheet material such as paper or fabric with a solution or suspension containing volatile constituents comprises an enclosed chamber, liquid applying means such as a wick extending from without the chamber through an airtight passage through the wall thereof, means within the chamber for conveying the paper &c., past the applying means, <PICT:0375241/IV/1> <PICT:0375241/IV/2> and means for supplying liquid to the applying means from a point outside the chamber under pressure greater than the pressure in the chamber.  The apparatus shown comprises a vertical casing 1, with continuous side walls, and back and front walls provided with airtight frames 10 carrying glass plates 13.  The casing is closed at top and bottom. Electric heating units 14 are mounted within the casing on jointed arms 15 so as to be adjustable.  A connection is provided for joining the casing to a vacuum pump. The paper or fabric is unwound from a roll 27 at the bottom of the casing and rolled up on a roll 29 at the top.  Mounted to project through removable plates 30 in the lower part of the casing are liquid sprayers 31 of known type.  Below the sprayers are mounted flat wide tubes 35 projecting upwardly and inwardly into the casing, wicks 36 pass through these tubes and dip into liquid in closed chambers 37 located outside the casing.  Air pressure may be applied to the liquid through valves 40, and toothed wheels 42 are provided for adjusting the wick so as to touch the paper &c. to apply liquid thereto.  The excess of pressure in the chambers 37 over that in the main casing causes the liquid to be forced up the wicks.  The heat from the heating units 14 and the partial vacuum in the casing complete the drying of the paper before it is rolled up.  Further liquid may be applied by the sprayers.  In a modified form of apparatus the liquid is applied by rollers 52, Fig. 3, which dip into the liquid contained in boxes 51 and make close contact with the edges of the openings in the boxes through which they project.
Patent GB-105259-A (GB)
Title: Improvements in or relating to Tension-devices for Yarns, Threads or the like for use in Winding or other Textile Machines.
Inventor: WADE HAROLD
IPC: B65H59/10
Filed: 1916-04-03
Abstract: 105,259. Wade, H., (Leeson, J. R.). April 3, 1916. Tension arrangements. - In an arrangement comprising a number of separate tension devices, of the type in which the yarn is led over or between relatively-movable and yieldingly - controlled friction members, for applying individually tension to each of a series of strands, means is provided for subdividing equally amongst the various devices the action of the weight or equivalent provided to give the necessary tensioning-force. The action of a weight W or a spring is distributed equally through a system of floating levers F, D to a series of tension devices T. The devices T, Fig. 1, comprise metal plates cut away to form alternating bars t, through which the yarn y is drawn. The plates are pivoted on a vertical pin supported in a bracket B, and their action is controlled by a lever L with arms l<1> engaging their rear. The levers L are hooked over a rail C, and into their rear extensions l<4> the ends of the floating levers D are hooked.
Patent GB-142232-A (GB)
Title: Improvements in or relating to switches or apparatus for controlling electric batteries
IPC: H02J7/36
Filed: 1919-02-28
Abstract: 142,232. Accles & Shelvoke, and Steventon, H. F. Feb. 28, 1919. Systems controlling travel for a fixed distance or number of revolutions.-In an end-cell switching system, the regulating switch is under the control of a volt meter o, which, according as the voltage is too high or too low, closes a circuit through one or other of two electro-magnets i, j. A lever g is then moved to close one or other of two circuits, which connect an electric motor p to a supply source. The motor through the worm and wheel d, c turns the arm a of the regulating switch to insert or cut out a cell of the battery. The wheel c carries a gapped ring e, so that the motor when once started must move completely from one pair of contacts to the next. This is assured by means of a stop on the lever g, which rides on the inside or outside of the ring e until it comes opposite a gap; one or other of the springs k then causes the step to enter the gap and hold the switch in the new position. A brake m held off by the motor current stops running of the armature &c. when the current to the motor ceases.
Patent GB-1476901-A (GB)
Title: Hydrostatic drives for imparting alternating movements to  members
IPC: F16H61/40
Filed: 1975-02-06
Abstract: 1476901 Hydraulic control circuits WERKZEUGMASCHINENKOMBINAT 7 OKTOBER BERLIN VEB 6 Feb 1975 [6 Feb 1974] 5088/75 Addition to 1220233 Heading F I P In a hydrostatic drive for imparting alternating movements to a member, as claimed in claim 1 of Specification 1220233, the actual value of the controlled condition present at the output of a differential pressure measuring capsule 3 is selectively conducted, by way of a switch 5, directly, or through a static amplifier 6, to a comparison element 1, the position of the switch 5 being dependant on the motor stop position of the machine control. As described, when the hydraulic motor control is switched to "stop", the switch 5 is as shown in dotted lines.
Patent GB-453692-A (GB)
Title: Improvements in switches for portable railways
IPC: A63H19/32
Filed: 1936-02-20
Abstract: 453,692. Switches for portable railways. KOY, E., 6, Hans Sachsstrasse, Frankfort-on-Main, Germany. Feb. 20, 1936, No. 5151. [Classes 104 (i) and 104 (ii)] A switch for portable railways comprises a pressed frame fitted with switch tongues 25, 26 and having laterally disposed rail curves 22, 23 providing turnouts in opposite directions from the main line 19. An extension rail 24 curved on each side is pivoted on the frame. In the form shown in Fig. 2, two turnouts in opposite directions are provided on each side of the line, reversible extension rails 43, 44 being pivoted at either end to the frame.