baber/WOPTO huggingface dataset:
Patent GB-423998-A (GB)
Title: Manufacture of patterned felt fabrics
IPC: D04H1/46
Filed: 1933-06-09
Abstract: 423,998. Patterned felts; compound fabrics. HEYDON, J. K., 20, Alexander Place, Kensington, London. June 9, 1933, No. 16567. [Classes 42 (ii) and 140] Several wads or sheets 14, 15 of felt are superposed, and an inlaid pattern is produced, on one sheet 15 by needling fibres 18 from the other sheet or sheets through it. The patterned material is then felted, milled, tentered and cropped. The wads may be drawn intermittently or continuously underneath gangs of barbed needles 11, 19 in a punch head, which is reciprocated across the line of travel of the fabric whereby a regular pattern 22 is produced. Fibres from two superposed wads 14, 25 may be drawn through the wad 15 at some parts 32, and fibres from the wad 14 only at other parts 31. According to the Provisional Specification, the wads may be of the same colour but of different materials, such as wool on the one hand, and a union of wool and cotton or rayon on the other hand, the pattern becoming evident after treatment with a dye which has a different action on the two materials.
Patent GB-497999-A (GB)
Title: Device for the hydraulic control of the blades of screw propellers, blowers and the like
IPC: B64C11/36
Filed: 1938-06-02
Abstract: 497,999. Fluid-pressure servomotorcontrol systems. ESCHER WYSS MASCHINENFABRIKEN AKT.-GES. June 2, 1938. No. 16569. Convention date, June 2, 1937. Addition to 496,022, [Group XXXIII]. [Class 135] [Also in Group XXXIII] Variable-pitch propellers according to the parent Specification, are modified in that the hydraulic locking device also controls the hydraulic actuating device. The fixed piston 9 and movable cylinder 5 of the hydraulic pitch-actuating apparatus has an exterior serrated surface 12 with which the locking member 21 is adapted to coact. The actuating gear is coupled by the pipes 7, 8, with a valve chest 36 containing a piston valve 33 which is coupled to a centrifugal governor 32. The locking bar 21 is actuated from the spring restrained piston 14, the cylinder of which is coupled by a pipe 25 with a gear wheel pump 27. From a locking cylinder 13 a pipe 26 passes to the valve chest 36 and from the delivery pipe 25 a further pipe 34 passes to this chest. In the pipe 34 is a three-way valve 35, and there is also a relief valve and pipe 37 and a return pipe 41. The valve chest 36 is similarly connected up with a return pipe 40 to the sump 28. In the position of the threeway valve 35 according to Fig. 3, liquid delivered from the pump 27 will, if the propeller is running at the normal number of revolutions, that is to say with the piston valve 33 in its central position, flow back through the pipe 40 into the tank 28. If the revolutions alter, the centrifugal governor 32 moves the piston but liquid cannot pass to the valve chest, so that there results a rise of pressure in the pipe 25 which raises the piston 14 and unlocks the locking gear 21. When the piston 14 has been raised sufficiently to uncover the lead to the pipe 26, liquid then passes through that pipe and, according to the position of the valve 33, to the appropriate pipe 7, or 8 to alter the pitch of the propeller. The alteration having brought the revolutions to normal, the governor returns the valve to its neutral position, and the locking device is brought into operation by the spring 16. If the locking gear 21 is to remain out of action, the threeway cock is brought into position as shown in Fig. 4. In the positions shown in Fig. 5, the adjusting means are cut out, and the locking bar is permanently engaged the propeller then acting as an ordinary fixed pitch propeller.
Patent GB-1534073-A (GB)
Title: Disposable pallet
IPC: B65D19/00
Filed: 1976-04-23
Abstract: 1534073 Bearer for pallet R X SZATKOWSKI 23 April 1976 [24 April 1975] 16621/76 Heading B8H A load handling pallet comprises two sheets of material 12, 14 cut and scored to form pairs of primary panels 22 foldable along score lines 22 and pairs of reinforcing panels 34 foldable along score lines 21. The sheets are bonded together with pairs of panels superimposed and the respective score lines perpendicular to each other so that the primary panels when folded show the score lines form the four sides of a foot. Extension pieces 30 of the primary panels overlap at 31 and are secured together to retain the shape of the foot and the reinforcing panels 34 of each sheet are secured to the primary panels of the other sheet. In an alternative embodiment, Fig. 8 (not shown) the primary panels are rectangular and the reinforcing panels are omitted.
Patent GB-1039310-A (GB)
Title: Improvements in and relating to gear shaving machines
IPC: B23F19/06
Filed: 1964-04-22
Abstract: 1,039,310. Gear-finishing. CARL HURTH MASCHINENUND ZAHNRADFABRIK. April 22, 1964 [July 20, 1963], No. 16630/64. Addition to 1,004,367. Headings B3B, B3K and B3T. [Also in Division F2] A gear finishing machine as claimed in the parent Specification in which a work., or cutter-, slide is fed against a stop, has means for withdrawing the slide when the pressure between the work and tool begins to fall, thus denoting the completion of the machining operation. A plunge-shaving machine similar to that described in the above-mentioned Specification is modified by the pressure-responsive means 403 being incorporated in the mounting of the centre 268a. The means 403 may be urged upwardly against the bearing block 401 by springs, screws or fluid-pressure means. A switch 421 is closed when the pressure has reached a maximum between the work and tool. The signal generator 409 operates when the pressure has dropped to a predetermined level to cause the feed motor to be reversed immediately or after a time delay. In modifications, the pressure-responsive means is located below the work-table or is associated with the tool-shaft. The feed may be by fluidpressure means. The block 401 and the pressureresponsive means may be adjustable about the axis of the centre 268a.
Patent GB-723938-A (GB)
Title: Improvements in and relating to electrical measuring instruments
Inventor: AXWORTHY FRANCIS ROY
IPC: G01R5/14
Filed: 1952-07-02
Abstract: 723,938. Moving-iron measuring-instruments. EVERETT, EDGCUMBE & CO., Ltd. May 1, 1953 [July 2, 1952; Oct. 30, 1952], Nos. 16654/52 and 27308/52. Class 37. The axis of deflection is parallel to the major axis and slot of the fixed elliptical coil, as shown in Figs. 5 and 6, and the moving vane B attracted into the coil A slot is of arcuate shape and may taper, Fig. 1, and have centre material removed as indicated by shading in Fig. 2. The moving vane B is a portion cut out from a hollow cylinder or cone. Magnetic screening is provided at D and G around the coil A and vane B. A long scale instrument (e.g. 290 degrees) is realized, Figs. 7 and 8 (not shown, by using a vane subtending the necessary large angle (suitable vanes are shown in Figs. 3 and 4) and by providing magnetic screening to limit the leakage fields. As shown in Fig. 13, an instrument may be designed to comprise two fixed coils A and a double vane B secured to a common spindle so that the instrument responds to the difference, sum or ratio of the currents in coils A. An instrument for recording the periods during which a switch is closed and open, Figs. 9-11, has a vane whose total deflection is limited to two or three degrees only. This vane B, Fig. 1, has a leading edge J, Fig. 9, nearly equal to the length of the coil slot and when coil A is energized the vane B is pulled quickly inwards by the additional attraction exerted by the portion of the coil shield D which closes the end of the coil slot. Eddy-current damping including aluminium sector E may be applied.
Patent GB-1382634-A (GB)
Title: Method for the photoelectric control of the transition from a  transverse position to a longitudinal position of a crimped thread  moving along a passage
IPC: D02G1/12
Filed: 1972-04-11
Abstract: 1382634 Automatic-control of position CHEMIEFASERKOMBINAT SCHWARZA WILHELM PIECK VEB 11 April 1972 16664/72 Heading G3R  To. control the transition from a transverse to a longitudinal position of a crimped thread in a passage, the take-up speed of thread from the passage is varied by a photo-electric device receiving light, from a source, that is not absorbed by the thread, the non absorbed light producing two distinct characteristics according to whether the thread is in a longitudinal or transverse position, a threshold of the photo-electric device lying between the two characteristics. In an embodiment, multifilament synthetic thread I which is crimped in a stuffer box 3 and packed transversely in a following passage 4, is withdrawn from the passage in a longitudinal direction for winding by device 8. A light source 6 and a photo-sensitive switch 7, e.g. including a silicon photo-transistor and a Schmitt trigger, are located at the point A where it is desired that the thread shall change from a transverse to a longitudinal orientation, so that any deviation in the actual transition point causes a change in illumination to adjust the rate of withdrawal of the thread and thus correct the transition point. The threshold value may be adjustable for different thickness or colour of threads, or for variations of intensity from source 6 e.g. due to ageing.
Patent GB-406004-A (GB)
Title: Improvements in or relating to dynamo electric machines
IPC: H02K1/18
Filed: 1932-06-13
Abstract: 406,004. Cores for dynamo - electric machines. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and ORSETTICH, R., c/o General Electric Co., Witton, Birmingham. June 13, 1932, No. 16679. [Class 35.] A laminated core and the frame or other core-supporting means are formed as separate units and are secured together, after their relative positions have been adjusted, by welding projections or shoulders on the core end plates and/or laminations to the core-supporting means directly or to one or more intermediate members welded to the core-supporting means, the said projections or shoulders being integral with or welded to the laminations and/or core end plates. In the form shown, the frame comprises a pair of rings 1 united by axial ribs 2 to which the projections 6 on the laminµ 4 or intermediate filling pieces welded thereto are welded. As an alternative to projections on the laminµ, there may be recesses in their peripheries into which the bars 2 extend and are welded, or which may contain bars welded to the laminµ and to the bars 2. As a further alternative, axial bars may be welded to the unrecessed core surface and to the bars 2, whilst in any of the modifications the members may be welded to the core end rings in addition to or instead of to the laminµ. According to the Provisional Specification, in machines of considerable length, the axial frame ribs may be welded to the core end rings and to intermediate plates placed between packets of laminµ.
Patent GB-379019-A (GB)
Title: Improvements in or relating to clutches
IPC: F16D43/10
Filed: 1931-06-10
Abstract: 379,019. Disc brakes. RENOLD & COVENTRY CHAIN CO., Ltd. and RENSHAW, A., Renold Works, Didsbury, Manchester. June 10, 1931, No. 16905. [Class 103 (i).] The elements of a disc clutch or brake are pressed together by the action of wedging members, such as coned rollers, on an encircling chain carried by one member and subjected to endwise tension or compression. As applied to clutches, a driven shaft 10, Figs. 1 and 2, carries a sleeve 12, to which are splined discs 20, 23 within a split driving casing 16 loose on the shaft. Discs 21, 22 are carried by members 26, 28 having bevelled edges forming a groove 29, and are notched to slide on studs 36 projecting from the casing 16. A chain 32, lying in a groove 30 of the casing, is anchored at one end 46 to the casing and at the other to an actuating arm 48 on a rockshaft 50, the chain having double-conical rollers 34, which, when the chain'is tensioned, enter the grooves 29 and separate the parts 26, 28 against springs 40 to engage the clutch. Centrifugal force tends to expand the chain to release the clutch. The rockshaft 50 is turned by a sliding cone 54 acting on counterbalanced arms 52. The chain is preferably in two lengths, as shown, with duplicated operating gear to secure balance. The disc 20 is axially adjustable by a locked nut 60 acting through thrust pins 58. In a modification, the chains act in compression upon the members 26, 28, which then surround them. In a further modification, the chains 32 are in zig-zag form, Fig. 5, the inner joints carrying the conical rollers 34 and the outer joints plain rollers 68 running on a track 70, compression being applied to produce toggle action by thrust members 66 and cams 64 carried by the rockshafts 50.
Patent GB-138545-A (GB)
Title: Improvements relating to prevention of unauthorised motor-car starting
IPC: B60R25/04
Filed: 1919-07-07
Abstract: 138,545. Williams, A. V. July 7, 1919. Secret contact-combination switches for controlling the ignition circuit of an internal-combustion engine to prevent the unauthorized use of a motor-vehicle consist of a number of parallel straight rows of contacts L', one row for each cylinder of the engine and a sliding contact member M<1> for each row adapted to engage with any one of the fixed contacts in its row. In the arrangement shown in Figs. 1 and 2 for a fourcylinder engine, the contacts L<1> are constituted by the heads of screws clamped to the cover S<1> of a box which accommodates the wiring connexions. The sliding contact members are guided by conducting rails K<1> supported on conducting brackets secured to the cover. The sliding contact itself is a spring-pressed shoe contact mounted within the contact member which carries also a spring-pressed stop P<1> which may engage with one of a number of depressions H<1> in the rail so that, in order to slide the contact member, the button R<1> must first be raised to lift the stop. The rail is numbered, lettered, or provided with indications, corresponding to the different positions the contact member may take up along it. The ignition wires from the magneto are connected one to each of the brackets and thus to the fixed contact with which the sliding contact member happens to be in engagement. One of these fixed contacts in each row is connected to one of the sparking-plug, and the supporting brackets are connected to the magneto so that the ignition circuit is completed only when the sliding contacts are in engagement with the particular fixed contact which is electrically connected. The combination can be changed by altering the connexions to the fixed contacts. The arrangement for six cylinder ignition is similar, six rows of contacts being used.
Patent GB-477039-A (GB)
Title: Improvements in or relating to means for sensing record perforations
IPC: G06K7/02
Filed: 1936-06-18
Abstract: 477,039. Punching record - cards. BROUGHAM, L. E., and ENGLISH, F. G. S. June 18, 1936, No. 17029. [Class 31 (ii)] [Also in Group XIX] In apparatus for producing record impressions in predetermined spaced relation from a perforated record, the record holes in the latter are read pneumatically, the holes are relatively small or pin holes or minute perforations, and may be irregularly positioned, each within a limited area. The reading of the cards at the station 1 is used to set selectively stops 6 which effect normal punching of cards, or printing on a record sheet, or printing on cards which are subsequently to be read by light-sensitive means. In the apparatus described punching of normalsize, regularly spaced holes (in code if desired) is effected on the cards which bear the pinholes, the card being fed at the proper time from station 1 to station 4. When a card is fed from hopper 2 to station 1 and held by gate 9b, it rests on a fixed plate 9a and a plate 9 is moved down so that the card is sealed between the plates with a pair of upper and lower pockets 11 covering each area within which an irregularly - positioned pin-hole may lie. Each upper pocket 11 is connected to atmosphere by a hole 12 and each lower pocket is joined by a pipe 14 to the chamber 26 of a pneumatic relay 23 Each of the chambers 23<1> of the relays which are connected by pipes 28 to an exhausting pump 21a, communicates by a bleed hole 29 with the chamber 26 and by a large hole with a chamber 25 ; the latter has an upper hole 251 communicat ing with top chamber 30<1> which is con nected to a bellows 31 and, by hole 30a to atmosphere. A valve 30 covers hole 251 and is rigid with a diaphragm 2' separating chambers 26 and 25. Norm ally, suction through each pipe 28 ex hausts both chambers 25 and 26 and the flexible diaphragm 27 and valve 30 remain down by their own weight sealing the hole 25<1>. If a pin-hole is read in the record at station 1, the correspond ing chamber 26 communicates witl atmosphere by pipe 14 and hole 12, and the pump exhausts chamber 25 whils the pressure is still rising in chamber 26 Valve 30 lifts and bellows 31 are collapsed to close the corresponding con tacts 32. The latter energize a corres ponding electric solenoid 33 which de presses its corresponding one of a column of rods 34 and settable stops The stops 6 have offset pins 38 which coact with lugs 39 on a latch bar 36 fo each column so that the depressed stop in each column is locked down by it lug 39. The card is fed from station to punch station 4 and the card is lifted with the punches 5 until certain of the latter meet the intermediate pins 7. The pins 7 of stops 6 which have been locked down then cause punches 5 to punch holes of normal size and spacing. Subsequently, the card is fed to magazine 45 and a bell-crank 41 is rocked about its pivot 42 to move latch bars 36 to the left to release all the set stops 6.
Patent GB-470301-A (GB)
Title: Improvements in and relating to means for suppressing radio-interference from electric discharge devices
IPC: H04B15/02
Filed: 1936-06-19
Abstract: 470,301. Supply systems for discharge lamps &c. ; protective arrangements. GENERAL ELECTRIC CO., Ltd., BLIGH, N. R., and LILLICRAP, H. G. June 19, 1936, No. 17111. [Class 38 (iv)] Electric discharge devices such as lamps, fed from an A.C. source through a step-up transformer are prevented from causing radio interference by providing at least one choke in a lead connecting the transformer secondary to the discharge device and a resistance shunting such choke or chokes and having substantially the same value as the equivalent resistance of the discharge device.
Patent GB-845053-A (GB)
Title: Electrically controllable optical element
IPC: G09F9/302
Filed: 1958-05-29
Abstract: 845,053. Light modulating. STANDARD TELEPHONES & CABLES Ltd. (Lorenz A. G., C.). May 29, 1958, No. 17121/58. Class 40(3). An electrically controllable optical device comprises a layer 1 (Fig. 1) of a substance (e.g. an alkali halide) sandwiched between two electrically conducting layers 2, 3, at least one of which is transparent, the device operating to vary the transparency of layer 1 when a potential difference is established between layers 2 and 3. By forming the layer 1 or the layers 2, 3 in the shape of symbols &c., the latter may be made visible on the application of the potential difference in one polarity and "wiped out" by reversing the polarity (or by the application of heat). Fig. 2, shows an arrangement in which two devices of this kind are operated in "series" one of the conducting layers 6 associated with the first controllable layer 7 and both of the conducting layers 10 and 12 associated with the second controllable layer 11 being provided with "cut-out" patterns in the form of desired symbols which are rendered visible by operation of either or both of switches 15; 17 and "wiped out" by operation of the polarity reversing switch 14. In this arrangement elements 5 and 9 are glass plates and element 13 an optical filter which filters out that portion of the spectrum of the light from source 16 which is not stopped by the layers 7 and 11. The conducting layers may be evaporated metal layers on glass or mica sheets.
Patent GB-453762-A (GB)
Title: Improvements in electric transformers
IPC: H01F29/10
Filed: 1936-06-19
Abstract: 453,762. Transformers. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. June 19, 1936, No. 17133. Convention date, June 25, 1935. [Class 38 (ii)] In a shell-type transformer regulated by magnetic shunts 3, 4 located between the limb carrying the windings I, II and the yokes 2, 3 and movable in a direction at right - angles to the axis of the core, the shunts are secured in adjusted position by means operating to draw them towards each other into contact with the winding limb or to push them apart into contact with the yokes. Fig. 2 shows the shunts carried by laterally extending members 7, 9 arranged to be drawn towards each other by clamping nuts 16, 17. Fig. 4 shows a 3 - phase/4- phase transformer in which the windings are arranged on two shelltype cores arranged side by side with common supports 21, 22 for their shunts, a single clamping device comprising a metal loop 23 extending round both supports and having a hand wheel adjusted screw 26 extending through one end for drawing the supports towards each other, being effective for clamping both sets of shunts in adjusted position. The shunt carrying members may be of insulating material or of brass with inserts of insulation to avoid forming a short-circuited turn around the core.
Patent GB-1198920-A (GB)
Title: A Hood for Keeping Clean the Atmosphere Surrounding a Work Area
IPC: F24F8/108
Filed: 1968-04-10
Abstract: 1,198,920. Removing dust &c. in industrial processes. MECAPLEX S.A. 10 April, 1968 [14 April, 1967], No. 17140/68. Heading F4X. In apparatus for keeping clean the atmosphere surrounding a working area 4 and comprising a housing 1 incorporating a horizontal perforate plate 2 serving as a work table, gas from an inlet 16 is directed by a blower 6 downwardly through filter elements 7 and a perforated plate 8 to the work area 4 wherein it flows horizontally across the work table and out through the front of the housing 1. The inlet 16 is situated in a gasreturn conduit 13 and carries a double-acting pivotally-mounted valve 17 which may close either the inlet 16 or the conduit 13. A prefiltering element 18 is located adjacent the inlet 16 and a damper 15 is located in the conduit 13 below part of the work-table. In an alternative operating condition (Fig. 2, not shown) wherein the front of the housing is closed by a glass shield (19) provided with glove ports and the gas-supply inlet 16 closed by the valve 17, a recirculating gas system is set up; the recirculating gas in this case may be air in combination with an inert gas. The apparatus may be used with the valve 17 in an intermediate position (Fig. 3, not shown) wherein fresh gas is admixed with recirculated gas.
Patent GB-1490897-A (GB)
Title: Hydrogen sulphide removal from waste fluid
IPC: C02F3/34
Filed: 1975-04-25
Abstract: 1490897 Removal of hydrogen sulphide from waste fluid UNION CARBIDE CORP 25 April 1975 [26 April 1974] 17169/75 Heading ClC The invention comprises a method for removing H 2 S from both gas and liquid phases of aqueous BOD-containing waste fluid comprising the steps of: (a) separating the H 2 S-containing waste fluid into waste water and waste gas; (b) contacting the separated H 2 S-containing waste gas from (a) with H 2 S-low water in a liquid-gas flow ratio of at least 545 lb. moles liquid/lb. mole gas, absorbing said H 2 S in the water and discharging the H 2 S-depleted waste gas; (c) mixing said waste water from (a) and H 2 S- containing water from (b) with activated sludge and at least 50% by volume oxygen gas in sufficient quantity to provide dissolved oxygen concentration of at least 2 p.p.m. in an enclosed aeration zone and simultaneously recirculating one fluid against the other fluid for sufficient duration to chemically remove the H 2 S by oxidation and biochemically oxidize the BOD thereby forming oxygenated liquor; (d) separating the oxygenated liquor into activated sludge and purified water; and (e) recycling at least part of said activated sludge to said enclosed aeration zone of (c).