baber/WOPTO huggingface dataset:
Patent GB-1366833-A (GB)
Title: Telemunications systems
IPC: H04L1/00
Filed: 1973-01-26
Abstract: 1366833 Digital transmission; error correction POST OFFICE 26 Jan 1973 4047/73 Heading H4P An encoding/decoding arrangement for error detection in a cyclic code, comprises: means 51 for partitioning a data word into a number of partitioned words; a check bit generator 59 and register 52 with the output of each connected to the input of the other; a modulo-2 adder 56 having one input connected to the means 51 and the other connected to the output of register 52; and means 53, 62 for determining when the register contains only zeros. The arrangement is one in which the encoded data is exactly divisible by a polynomial, so that any remainder detected after performing the division in the receiver will produce an error signal which can initiate a repeat. Encoding.-To encode a 32 bit message, the data is first recorded as four 8-bit words in memory 51. The most significant word is then fed from the memory via register 53, gate 54, adder 56 switch S2 (in the a position) to register 52. Switch S2 is then switched to the b position by a read only memory (Fig. 6, not shown) and the word stored in register 52 is fed via gate 58 to a check bit generator 59 which produces an 8 bit check signal which corresponds to the remainder when the 8 bit word is divided by the selected polynomial. This check signal is then fed to register 52. Switch S2 is again returned to the a position and the next word from memory 51 and the remainder signal from register 52 are added in modulo-2 adder 56, and the result fed to register 52 again. Switch S2 is again returned to the b position and the word now stored in register 52 is fed to check bit generator 59 to produce a new check signal which is again stored in register 52. The procedure is then repeated for the other two words stored in memory 51, to give a final check signal (the complete remainder) in register 52. This signal is fed to a further position in memory 51, and the complete message of 32 data bits and 8 check bits is read out over line 61. Decoding.-Similar apparatus is provided at the receiving station, the received message being written into a memory 51 as before. After performing the previously described operations on the whole signal (data plus check bits) the resulting remainder in register 52 is compared in comparater 62 with an eight zero bit signal derived from the read out memory via register 53. If the remainder in register 52 is also eight zero bits, indicating a correct transmission, the data signal is read out of memory 51. If the remainder is not eight zero bits, comparator 62 sends a "repeat" signal back to the transmitter. Details of a check bit generator for division by a polynomial X<SP>8</SP> + X<SP>2</SP> + X + 1 using EXCLUSIVE-OR gates are given in Fig. 4 (not shown).
Patent GB-168575-A (GB)
Title: Improved process for manufacturing brilliant cellulose threads
IPC: D06M11/11
Filed: 1921-02-04
Abstract: In the manufacture of brilliant cellulose threads the fibres such as those of flax, hemp, cotton, ramie, raffia, and jute, either in the raw state or in the form of thread, flock or fabric, are subjected to the process of the parent Specification in order to open up, ungum, and impart brilliancy and suppleness thereto. The fibres are first treated with caustic soda to form alkali-cellulose, then with carbon bisulphide in vacuo to convert the alkali-cellulose into xanthate, from which the cellulose is subsequently regenerated, and the fibres are finally washed with sodium sulphide solution, mineral acid, and water; the threads spun from the treated fibres are, while in the form of skeins, treated with caustic soda solution and are stretched to obtain the maximum brilliancy.  In the case of waste and non-utilizable material in the form of thread, fabric, &c., the fibres are recovered by unravelling the treated material.
Patent GB-391569-A (GB)
Title: Improvements in or relating to water tube boilers
IPC: F22G7/14
Filed: 1932-02-12
Abstract: 391,569. Water-tube steam boilers. THORNYCROFT & CO., Ltd., J. I., Smith Square, London, and MACKIE, R., Woolston Works, Southampton. Feb. 12, 1932, No. 4210. [Class 123 (ii).] In a Yarrow-type boiler having separated groups of tubes 10, 11 on one or both sides of the combustion chamber, a horizontal tube superheater 6a is arranged in the space between the separated groups and the bottom of the space is provided with a closure 12 which may be removed for insertion and withdrawal of the superheater.
Patent GB-1030802-A (GB)
Title: Process for preparing self-extinguishing plastics
IPC: C08K5/18
Filed: 1964-01-31
Abstract: Polymers of esters of methacrylic acid or polyurethanes are made self-extinguishing by incorporating as flame-retarding additive a compound RBrxCly or a mixture of compounds having an average formula RBrxCLy, wherein R is diphenyl, diphenylamine, diphenyl ether, diphenylmethane or homologues thereof; x is a whole or fractional number from 3 to 7; y is a whole or fractional number from 0.5 to 5; x + y is from 4 to 8; and the proportions of polymer and additives being such that the composition contains 3 to 43% of halogen.  A preferred additive is a mixture of pentato octa-chlorine and -bromine derivatives of diphenyl and/or diphenyl ether.  Optionally esters of phosphorus acids also may be present. In Example (1) a foamed product is obtained from sorbitol ether, trichlorofluoromethane, C12H4.1Br4.4Cl1.5, trichloroethylphosphate and diphenylmethane - diisocyanate.  In Examples (2) and (3), methyl methacrylate is polymerized in the presence of C12H5OBr4Cl or C12H4Br4.5Cl1.5.
Patent GB-1513742-A (GB)
Title: 6-aryl-2,3,6,7-tetrahydro-5h-pyrrolo(1,2-a)imidazole derivatives processes for their manufacture and compositions containing them
IPC: C07D207/277
Filed: 1975-01-31
Abstract: 1513742 2,3,6,7 - Tetrahydro - 5H - pyrrolo- (1,2 - a)imidazoles IMPERIAL CHEMICAL INDUSTRIES Ltd 16 Jan 1976 [31 Jan 1975] 4303/75 Heading C2C Novel Compounds I and their acid addition salts in which R<SP>1</SP>, R<SP>2</SP>, R<SP>3</SP> and R<SP>5</SP> are H or C 1-4 alkyl, R<SP>4</SP> is H or C 1-4 alkyl and Ar is optionally substituted aryl or Ar represents aryl which has a substituent adjacent the linking position which substituent together with R<SP>4</SP> represents C 1-3  alkylene and the aryl moiety may be further substituted are prepared by cyclizing a Compound II, III, IV, V, VI or VII. in which X is Hal, OH or a sulphonyloxy radical or hydrolysis and decarboxylation of an ester VIII or IX in which R<SP>6</SP> is C 1-6 alkyl and if desired (a) reducing NO 2  to NH 2  or acylating NH 2  in a compound in which Ar bears such substituents (b) forming a salt or (c) resolving a racemic compound into its enantiomers. Compounds II, III or IV are prepared by reacting a Compound X where Z is OEt with a compound XI or a Compound XIa Compounds X are prepared by reacting a pyrrolidone with EtOH under acidic conditions. Compounds XII are prepared by methods disclosed in Specification 1,140,188. Compounds V are prepared by reacting pyrrolidone XII with a Compound XI or XIa or when R<SP>1</SP>=H with X-CHR<SP>2</SP>-CN followed by reduction. Compounds I have anti-hypertensive activity and may be used in pharmaceutical compositions for administration orally or parenterally. The compositions may further contain vasodilators (glyceryl nitrate, pentaerythritol tetranitrate and isosorbide dinitrate); diuretics (chlorothiazide), other hypotensive agents (reserpine, bethanidine and guanethidine) and #-adrenergic blocking agents (propranolol).
Patent GB-1475034-A (GB)
Title: Resin coated metal substrates
IPC: C09D163/00
Filed: 1975-01-31
Abstract: A cured epoxy resin-containing synthetic resin coating is suitable as durable, heat- and chemicals-resistant, electroinsulating coatings for tubes and containers made of metal. This synthetic resin coating contains a solid epoxy resin based on 4,4'-diphenylolpropane and/or 4,4'-diphenylolmethane and epichlorohydrin, and from 1 to 12% by weight, based on the epoxy resin present in the coating, of at least one compound of the formula I or II <IMAGE> and furthermore flow-control agents, thixotropic agents and optionally also pigments. In the heterocyclic rings of the formulae I and II, the radicals R are alkyl groups having 1 to 6 carbon atoms, aromatic hydrocarbon radicals having 6 to 10 carbon atoms or benzyl radicals. The compounds of the formulae I and II act as crosslinking components. The synthetic resin can be applied as a solid powder to the heated metal substrate, where it flows out to give a uniform film. This film can be cured without a further working step utilising the heat capacity of the metal. This achieves a significant saving in work.
Patent GB-1423381-A (GB)
Title: Golf-ball pick-up device
IPC: A63B47/02
Filed: 1973-01-30
Abstract: 1423381 Device for picking up golf-balls AMETHYST ENG CO Ltd 24 April 1974 [30 Jan 1973] 4537/73 Heading A6D A device for picking up golf-balls, comprises an array of substantially parallel prongs 2 protruding from a base 1, the prongs being sufficiently resilient and so spaced that golfballs forced between them will be held. For improved grip means such as a screw-thread, etching, roughening, knurling or coating with plastics material or rubber may be applied to the prongs. A handle may be integral with the device, or alternatively a means for attaching the device to a golf-club may be provided. The device may be made of metal e.g. aluminium for holder and handle, with steel prongs or it may be a one-piece plastics moulding.
Patent GB-941008-A (GB)
Title: Improvements in resilient joints, more particularly for motor-vehicle suspensions
IPC: F16F1/38
Filed: 1962-02-06
Abstract: 941,008. Bearings. RIV OFFICINE DI VILLAR PEROSA S.p.A. Feb. 6, 1962 [Feb. 7, 1961; Dec. 28, 1961], No. 4546/62. Heading F2A. In a resilient joint of the type comprising a rubber sleeve 19 lined with a tubular layer 22 of anti-friction antiwear synthetic resin the inner surface of the said layer 22 is of a multi-sided cross-sectional shape, its sides being either straight or convex towards the axis of the layer, and the sleeve 19 has at least one radial end flange 20 with an annular outwardly-flaring layer 23 of the said resin on its front surface (Fig. 1). In combination with the joint are an eye-shaped member 10, which may be on a connecting rod 11, into which the sleeve 12, of which there may be two, is forced, a cylindrical pin 12 rotatably fitted into the joint and of a diameter between that of the circle inscribed in the said polygonal cross-section and the circle circumscribed therearound, an abutment, of which there may be two-16a, 16b, on the pin 12 bearing against the outer circumferential region of the annular layer 23 and a lubricant in the clearance 25 defined by the joint, pin 12, and an abutment. The layers 22 and 23 are bonded to the sleeve 19 when it is vulcanized. Lubricant is also stored in clearances 24 (Fig. 2), formed between the bolt and each of the longitudinal edges of the inner surface of the layer 22, and in a clearance 21 between the near ends of two sleeves 19, which is omitted in a modified form of sleeve, equivalent to two lined sleeves 19 joined at their near ends. In a further modification (Fig. 8) the end flange 20 of the sleeve 19 has a circumferential lip 40 on to which may be forced a cylindrical circumferential flange 43 on an apertured disc of rigid material 41. The axial length of the flange 43 should be between the thickness of the lip 40 and of the flange 43, and the inner diameter of the flange 43 should be between the outer diameter of the lip 40 and that of the flange 20. The sleeve 19 has an integral lip 32 of bead form having a bore smaller than the diameter of the inscribed circle of the sleeve 19. The sleeve 19 of Figs. 1 and 2 may be formed so as to have a lip 32 on the inner end.
Patent GB-1411221-A (GB)
Title: Chemical extraction machine
IPC: B01D11/04
Filed: 1971-08-12
Abstract: 1411221 Liquid/liquid extraction apparatus R C SMITH 9 Nov 1972 [12 Aug 1971] 4600/ 71 Heading B1F A machine for carrying out simultaneously an extraction process on a number of separate samples, e.g. liquid/liquid extraction, comprises a sink above which is mounted a horizontal beam which can be oscillated or rotated to different angular positions about an axis parallel to its length, the beam being provided with a number of mountings for individual extraction vessels, an outlet nozzle which is connected to a dosing device for a solvent and/or reagent, a mechanism which can index the outlet nozzle along the beam, in use, into alignment with an inlet opening of successive vessels mounted on the beam, and an automatic programmer which controls the oscillation and rotation of the beam, the dosing device and the mechanism. Thus, under automatic control of a punched card inserted in a card reader (44, Fig 1, not shown), outlet nozzle 37, Fig 2, is indexed along above vessels 14 into alignment with successive vessels, and the reciprocating pump (46, Fig 7, not shown) of one of a series of dosing devices (45) is operated after each indexing step to introduce a predetermined volume of reagent or solvent into each vessel 14 in turn. Beam 11 is then oscillated by motor 16, and then rotated to a new angular position by motor 25 to a new angular position at which it is stopped when a light beam (30, Fig 5, not shown) falls on a rotating photo sensitive element (32). The liquids in the vessels 14 are allowed to separate, and the beam 11 is rotated to a position at which the lighter or heavier of the liquids is discharged. A valve then automatically opens to supply water to the perforated pipe around the edge of sink 9 to swill discarded reagent down drain 9. The beam is then rotated back to the starting position for doses of further solvent. The dosing system may be purged with distilled water from one of the devices 45 between introduction of new reagent. Vessels 14 may be as disclosed in Specification 1385483, or may be similar vessels modified as shown in Fig 8, in which a piston 70 is provided whose distance from drain duct 65 can be adjusted.
Patent GB-1411205-A (GB)
Title: Eddy-current retarder rotor
IPC: H02K49/02
Filed: 1974-01-31
Abstract: 1411205 Eddy-current retarder rotors LABAVIA-SGE 31 Jan 1974 [16 Feb 1973] 04650/74 Heading H2A In an eddy-current retarder rotor comprising a magnetic annulus 1 which is the site of the eddy currents and is connected to a central hub 2, and curved ventilation and cooling fins 4 connected to the annulus and extending over its entire radial width the edges of the fins remote from the annulus being connected to a common rim 6 whose inside diameter is greater than that of the annulus, each fin 4 comprises two successive radial zones A, C curved in opposite directions and connected to one another without discontinuity by an intermediate zone B of inflexion. The connection to the hub 2 is made by arms 3 which are extensions of some of the fins whose entry and exit angles e, s are detailed in the Specification. The rim 6, and possibly also the annulus 1, may be frusto-conical, and form cooling ducts, whilst in another embodiment the fins are oppositely curved from that shown.
Patent GB-653059-A (GB)
Title: Improvements relating to suction cleaners
IPC: A47L9/20
Filed: 1948-02-18
Abstract: 653,059. Suction cleaners. HOOVER, Ltd. Feb. 18, 1948, Nos. 4703 and 4704. Convention dates, March 8, 1947. [Classes 8(i) and 8(ii)] A suction cleaner includes filter shaking mechanism which in the released condition holds the filter extended but not under tension, and when operated first collapses the filter against the action of a spring, then snaps it taut under the action of the spring and holds it in tension for a moment prior to its release. The filter 30, Fig. 1, through which dust-laden air is drawn by a motor driven fan 23 which after drawing through a second filter 27 in series exhausts through a blower port 12, is secured at its closed free end to a U- shaped frame 36 pivoted to arms 38, 39, Fig. 3, themselves secured to a shaft 40. This shaft is biassed in an anti-clockwise direction by springs 45, 46 having ends 49, 50 abutting a tensioning member 52 also pivoted about the shaft 40. Limiting stops 53, 54 on the member 52 prevent the filter in its normal extended position from being subject to tension. The filter shaking mechanism comprises a slider 68 biassed by a spring 70 and carrying a tooth 65 which on the forward stroke retracts a filter bail 93 and so collapses the filter against the springs 45, 46 until the bail rides a ramp 62 whereon the filter returns with a snap action. The slider 62 is operated by a shaker lever 73 which is rocked about a fixed pivot 74 by an external floating pedal lever 77 connected to the lever 73 by a pivot 78 extending through a washer sealed slot and carrying a short arm 82. The lever 77, pivot 78 and arm 82 form a rigid unit and clockwise rotation relative to the lever 73 is limited by a stop 86, and the lever 82 is pivoted at 91 to a rod 90 pivoted at 92 to the tensioning member 52. Initial movement of the pedal about the pivot 78 extends the rod 90 and the member 52 to tension the filter, and further pedal movement rotates the shaker lever 73 to actuate the slider 68 and so collapse the filter 30. When the pedal is released the spring 70 returns the slider 68 and the rod 90 which latter rocks the tension member 52 so that the stops 53, 54 abut the arms 38, 39 to relieve the filter of tension. In a modification the slider is acutated by a single lever 73 movable about a fixed pivot and pivoted at one end to the slider 68 and at the other end to the rod 90 so that movement of both members 68, 90 occur simultaneously and continuously throughout the stroke of the slider. The chamber casing 10 is supported by skids 19 assisted by a curved surface 89 on the pedal arm 56. Specification 612,223 is referred to.
Patent GB-608099-A (GB)
Title: Improvements in step ladders
IPC: E06C1/32
Filed: 1946-02-15
Abstract: 608,099. Ladders. ROBINSON & CO., (BOLTON). Ltd., B. and CHARLSON. E. 15. 1946, No. 4777. [Class 20(ii)] A convertible long and step ladder comprises front and rear legs 2, 3, pivoted together at 4, with shoulders 6, 7 which abut against each other, when the legs are pivoted into line. When used as a step ladder, the front and rear legs are releasably held together by two U-shaped tie rods 10 the ends of which are pivoted to the legs and the U-parts of which are releasably interconnected by a plate 12, Fig. 6. and a U-plate 11 having two flanges one of which is fastened to the plate 12 by a bolt 13 and a wing nut 14. The free ends of the legs may have resilient pads 15, to prevent slipping. The legs are of channelsection, the webs of which may be embossed. According to the Provisional Specification the free flange of the U-plate 11 engages in a slot in the plate 12.
Patent GB-1489605-A (GB)
Title: Shoe insole and method of manufacturing the same
IPC: A43B13/41
Filed: 1975-01-03
Abstract: 1489605 Insoles GARDINER & PRATT Ltd 3 Jan 1975 [2 Feb 1974] 04922/74 Heading A3B A reinforced shoe insole comprises a fulllength unsplit insole component 10 having an additional layer 12 of the same shape secured by its forward end only, and a layer 16 of plastics material injection moulded between layers 10 and 12 only as far as the region where the additional layer is secured to the insole component. The unsplit insole 10 may be of leather, reconstituted leatherboard, paper-based material or of impregnated cloth and the additional layer 12, which may be the same length as layer 10, may be of a woven or non-woven material e.g. fibreboard, cardboard or paper. The insole 10 and layer 12, are placed in a shallow mould and plastics material 16, e.g. polypropylene, polythene or polystyrene, injected through a hole in layer 12 into the space between the two layers. Layer 12 may have spaced holes for engagement with locating pins in the mould.
Patent GB-124275-A (GB)
Title: Improvements in and connected with Slab Buildings.
Inventor: WALLIS THOMAS
IPC: E04B1/04
Filed: 1918-03-20
Abstract: 124,275. Wallis, T., and Sexton, J. W. B. March 20, 1918. Poultry houses.-A slab building (chicken house, pigsty, &c.) is formed of reinforced concrete slabs of uniform size and having the abutting edges bevelled as shown in Fig. 3<a> to include an angle of 90 degrees. The junctions of the slabs are secured by angle iron brackets b and bolts so that the building can be extended, when desired, to a multiple of the original size. For a large building without internal walls, the roof slabs h, Fig. 3, are supported by beams e of the same thickness as the slabs; the beams rest on vertical members f, Fig. 3a, and are secured thereto and to the wall slabs by brackets g and bolts. The roof slabs are also of uniform size and are formed with grooves to fit the wall slabs and with interengaging rabbeted edges i. The bottom edges of the wall slabs fit into pyramidal blocks l, Fig. 4. The slabs may be reinforced with ribbed steel sheets or otherwise, and mav have openings for entrance and exit or to receive wire mesh or other fillings.
Patent GB-980370-A (GB)
Title: Improvements in or relating to current regulating transistor circuit arrangements
Inventor: BARBER JOHN ANSTEY
IPC: G05F3/18
Filed: 1963-02-07
Abstract: 980,370. Automatic current control. MARCONI CO. Ltd. Dec. 18, 1963 [Feb. 1963], No. 4970/63. Heading G3R. Current through a load RL is maintained constant by a chain of transistors such as T1, T2 connected as shown in series with the load, a constant voltage source V1 being connected between the base of T1 and the emitter of T2 and a constant voltage source V2 being connected between the base of T2 and the side of the load remote from the emitter of T2. The sources V1, V2 may be constituted by Zener diodes (Fig. 3, not shown). An embodiment having three series connected transistors is described with reference to Fig. 4(not shown).
Patent GB-255355-A (GB)
Title: Buttonhole sewing apparatus
IPC: D05B3/24
Filed: 1926-02-22
Abstract: 255,355. Fr÷hlich, F. Feb. 22, 1926. Button-hofe sewing-machines.-An attachment for button-hole sewing is secured to the presserbar of a sewing-machine, the necessary feed movements of the apparatus being effected by a connection with the needle-bar. The device comprises a plate 1 having a jaw 2 which is attached to the presser-bar. A ratchet wheel 8 mounted on the plate carries a pinion 9 which extends through a slot in tht plate into engagement with teeth 51 round the sides of a rectangular cavity 49 formed in a feeding-bar 45, a central bar 50 in the cavity serving to guide the pinion. The wheel is pivoted on a bar 12 and carries a spring pawl 13 which prevents reverse rotation of the wheel. The wheel is engaged by an operating pawl 15 secured to a lever 17 pivotally mounted at 18 and having a guide slot 20 for a bolt 21 on a lever 22 connected to a link pivoted at 24 to a lever 25 pivotd at 26 and carrying a rod 29. The plate 1 is provided with apertures 31, 32, the latter having branches 33, 34. On a pivot 35 between the apertures is mounted a switch plate 36 having an opening 38 with inclined faces 39, 40 and carrying a pin 37 which projects into the aperture 32 in the plate 1. A pin 30 on the rod 29 projects through the opening 38 into the aperture 32 of the plate 1. The work is engaged by a plate 46 on the plate 45 and these plates and the plate 1 have an opening sufficiently large for the passage of the needle in all positions of the plates. The lever 17 has a slot 27 engaged by a stud on the needle-bar which in its reciprocations effects the step-by-step rotation of the wheel 8 and the movement of the feed-bar 45 through the engagement of the pinion 9 and the teeth 51 to move the work so that the stiches are laid up on one side of a button-hole and down the other. At the same time the switch-plate 36 is oscillated from side to side at each needle-stroke by the interaction of the pin 30 with the inclined faces 39, 40 and branches 33. 34 of the slot 32 and effects a corresponding oscillation of the feed plate so that the necessary depth and slit stitches are produced. A supporting plate is employed to mask the ordinary feed dogs of the machine.