baber/WOPTO huggingface dataset:
Patent GB-1207976-A (GB)
Title: Improvements in or relating to apparatus for determining the spacing between substantially parallel rays of radiation
Inventor: WYMAN PATRICK ROY
IPC: G01B11/06
Filed: 1967-12-12
Abstract: 1,207,976. Measuring dimensions photoelectrically. GENERAL ELECTRIC and ENGLISH ELECTRIC COMPANIES Ltd. Dec. 5, 1968 [Dec. 12, 1967; May 28, 1968], Nos.56407/67 and 25454/68. Heading G1A. The spacing between two rays of radiation is determined by photo-electrically detecting the radiation passing through a slot in a rotating cylinder to produce corresponding electrical pulses and measuring the time spacing between the pulses. In apparatus for measuring the wall thickness of a tube 1, Fig. 1, a linearly extensive beam of light 5 is reflected from the outer and inner surfaces of the tube wall to form beams 7 and 10, which are sequentially allowed to pass to a photo-cell 14 by a slotted drum 13. An electrical circuit Fig. 3 (not shown) produces a pulse of duration equal to the spacing of the leading edges of the pair of pulses produced by the photo-cell. This pulse is applied to an integrating amplifier to give a voltage proportional to the pulse length and hence the spacing of the beams 7 and 10 which depends upon the thickness of the tube wall. The integrated voltage is transferred by a FET gate to a further operational amplifier where it is held while the integrating amplifier is discharged in readiness for the next pair of pulses. The circuit is set to the correct state for reception of each pair of pulses by a photo-electric sync. pulse generator 18, 19. In a modification, Fig. 5 (not shown) the beam 5 illuminates both the front and back walls of the tube so that the photo-cell produces four pulses from which the internal diameter and wall thickness can be determined.
Patent GB-819890-A (GB)
Title: Thread feeding and clamping device
IPC: D05B91/14
Filed: 1957-08-13
Abstract: 819,890. Sewing machines. MOGHADAM, L. MARKOFF-. Aug. 13, 1957, No. 25524/57. Class 112 [Also in Groups IX and XVII] A device for controlling the unwinding of thread, wire, string &c. from a spool, comprises a spindle which is a loose fit in the bore of the spool, wedging-means for locking the spindle to the spool when they are moved relatively in an axial direction, a guide for the unwinding thread carried by the spindle, and a clamp into which the thread &c. can be drawn from the guide to retain it. In a form, Fig. 16, for use with sewing machines, the device comprises a wedge-shaped hollow spindle 49 having a disc 51 spring-mounted at 52 on the spool; the guide is formed in a dependent extension 53 with an aperture 54 into which the thread &c. is pulled from the side, a guide portion 56, Fig. 14 (not shown) and a narrow clamping portion 57 being provided. A knife is provided at 58.
Patent GB-361960-A (GB)
Title: Electric heating body
IPC: H05B3/14
Filed: 1930-08-27
Abstract: 361,960. Self-supporting resistances. JACKSON, L. MELLERSH-, 28, Southampton Buildings, London. - (Siemens Planiawerke Akt.-Ges. fur Kohlefabrikate ; 128, Herzbergstrasse, Lichtenberg, Berlin.) Aug. 27, 1930, No. 25574. [Class 37.] An electric heating body 1 of silicon carbide protected from direct contact by a ceramic mass is made in the form of a centrally perforated disc thickened from the periphery towards the centre so that it glows substantially uniformly all over the parts of the disc in use. Current is supplied at the periphery and the centre of the body by a spring split ring 27 and a stud 14 respectively. The ring 27 may be slotted and divided into arcuate strips such as 21, 22, &c. for the purpose of regulating the current supply and the body itself may also be correspondingly slotted so as to form segments 15, 16, &c., which may be inserted in or cut out of the circuit. In a modification, Fig. 3, the central stud 14 is dispensed with and opposite segments such as I, II, III are connected to the supply terminals in pairs.
Patent GB-455252-A (GB)
Title: Carpet sweeper casing
IPC: A47L11/33
Filed: 1935-03-15
Abstract: 455,252. Carpet sweepers. WAGNER MFG. CO., E. R., 4611, 32nd Street, Milwaukee, Wisconsin, U.S.A. March 15, 1935, No. 25690. Convention date, March 22, 1934. Divided out of 441,175. [Class 138 (i)] A carpet sweeper of the type comprising a wheeled casing containing a central rotary brush is characterized bv the method of mounting the handle and by the springing. The casing 1, Fig. 1, has lateral plates 62 and extensions 2, 3 with slots 15 in between, the arms 14 of the handle 12 extending therethrough. Bosses 70 are provided on the plates for releasably retaining the handle substantially parallel with the casing and other bosses 69 for retaining the handle vertically. The handle is snapped into or out of position past the bosses. The bosses 69, when engaged with arms 14 of the handle in either operative position, tend to exert a stabilizing action against rocking at the end of a stroke. The driving wheels are mounted on springs 60, Fig. 3, clamped to the casing by members 61 preferably part of the plate 62. The ends of the springs engage flattened portions 4<1>, Fig. 5, of the wheel axles 4 to prevent rotation and consequent collection of dust. To prevent rubbing of the springs on the casing felt and fibre washers are interposed. The connection of the handle 12 and bail member 13 comprises stamping out the member 13 to provide a key 71, Fig. 8. An attaching lug 72, Fig. 7, with a transverse opening 73 is slipped over the bail and brought to such a position that the key 71 is located therein. The lug is then smoothed down to close round the key 71. Specification 441,175 is referred to.
Patent GB-392593-A (GB)
Title: Improvements in the treatment of filaments, fabrics, and the like
IPC: D06M11/45
Filed: 1931-09-14
Abstract: When delustring threads, yarns, ribbons, films, fabrics, &c particularly artificial materials and especially such as are made of cellulose acetate or other organic derivative of cellulose, by forming thereon insoluble substances by the interaction of two or more reagents on the material, the first reagent is applied under such conditions that it does not penetrate the core of the material or at least a considerable excess is allowed to remain upon or near the surface at the time of treatment with the second reagent, for example, by employing reagents which do not swell the substance of the material, and by avoiding the presence of swelling agents during their application.  Materials delustred in this manner do not relustre when dyed.  After the application of the first reagent, it is preferred to evaporate the bulk or all of the water or other solvent, after the removal of excess reagent by hydro-extraction.  It is convenient to apply the second reagent under conditions which inhibit the removal of the first reagent, for example, by the use of, as a solvent therefor, a medium in which the latter is not soluble, by the addition to the bath of substances which diminish the solubility of the first reagent, by applying the second reagent in the form of a gas or vapour, by applying only a limited quantity of the latter as by spraying, by the application by padding of a thickened solution, or by the application of a printing paste to produce pattern effects. Suitable delustring substances are insoluble metal compounds such as the sulphates, carbonates, phosphates, hydroxides, &c. of calcium, barium, strontium, magnesium, aluminium, zinc, and lead, and the salts of these metals with oxalic, tartaric, citric, mucic and saccharic acids or with the higher fatty acids. Apart from materials made of organic derivatives of cellulose, the process is of value in the case of materials made of natural silk or of regenerated cellulose artificial silks.  In examples, a cellulose acetate yarn is first treated with barium chloride solution at 60 DEG C. and then with a solution of disodium hydrogen phosphate containing potassium chloride; cellulose acetate yarn is treated at 50-70 DEG C. with a saturated solution of barium hydroxide, and then with an alcoholic solution of oxalic acid; cellulose acetate woven fabric is treated with sodium aluminate solution, and then exposed to moist carbon dioxide; a natural silk and regenerated artificial silk fabric is sprayed with magnesium chloride solution, and then passed through a pad mangle charged with sodium carbonate solution saturated with sodium chloride.
Patent GB-1416020-A (GB)
Title: Manufacture of  cigarettes and the like
IPC: A24C5/18
Filed: 1971-09-24
Abstract: 1416020 Cigarette making-machines MOLINS LTD 21 Sept 1972 [24 Sept 1971] 25709/ 75 Divided out of 1416019 Heading A2C A continuous rod machine for making cigarettes with a filler including a core 14 of one particulate material surrounded by an annulus of a second particulate material, of the kind in which the core material is fed onto and along the middle of a layer of second particulate material 12 formed by showering tobacco onto a conveyor 10, is characterised by means for ejecting sections of the core material at regular intervals, means for forming a layer of the second material over the remaining sections of the first material and in the spaces between successive sections, means for tensioning the layer of second material and means for wrapping the continuous rod and cutting it at the positions between the adjacent ends of successive sections of the first material. As shown in Figs. 1 and 2, tobacco 12 is showered down a shoot 22 past a rotating knurled roller 45 to fall either side of the wall 44 on to the conveyor 10 whioh is suction backed. The lateral position of the roller 45 is horizontally adjustable to ensure that equal quantities of tobacco pass downwards along opposite sides of the wall. Core material 14 may be fed into the hollow of U sectioned layer 12 as a continuous stream prior to removal of regular spaced sections either by compressed air from pulley 96 or by the combined effect of discontinuous suction through ports and the assistance of centrifugal force at the pulley wheel. Specification 1305900 is referred to.
Patent GB-760933-A (GB)
Title: Process for the synthesis of chloramphenicol
Filed: 1953-09-18
Abstract: The synthesis of chloramphenicol described in Specification 729,617 is modified by conversion of the hydrochloride salt of the D-threo-1-phenyl - 1 : 3 - bis - acyloxy - 2 - aminopropane into the corresponding nitrate salt before nitration.  The process is not limited to the particular reaction conditions claimed in the above Specification.  The conversion of the hydrochloride into the nitrate is effected by treating a methanol solution of the former with an aqueous or methanol solution of a salt of a metal which forms an insoluble chloride, e.g. silver nitrate or lead nitrate. Examples show the synthesis of chloramphenicol from DL-threo-b -phenylserine (see Specification 687,214), passing through the following intermediates: (1) DL - threo - b  - phenylserine cyclohexyl ester (via hydrochloride), L-threo-b -phenylserine cyclohexyl ester (via L-pyroglutamate salt), D - threo - 1 - phenyl - 2 - amino - 1 : 3-propanediol, D - threo - 1 - phenyl - 1 : 3-diacetoxy - 2 - aminopropane hydrochloride and nitrate, D - threo - 1 - p - nitrophenyl - 2-acetamido - 3 - acetoxy - 1 - propanol and D - threo - 1 - p - nitrophenyl - 2 - amino - 1 : 3-propanediol hydrochloride; (2) the first three as in (1) and then D-threo-1-phenyl-1 : 3-bis-(dichloracetoxy) - 2 - aminopropane hydrochloride and nitrate, and subsequent steps as in (1).  Reference has been directed by the Comptroller to Specifications 707,571, 715,122, 715,123, 715,128, 729,550, 729,597 and 729,617.
Patent GB-1182859-A (GB)
Title: Monoazo Pigment Dyestuffs
Inventor: HANKE HANS-GERHARD
IPC: C09B43/34
Filed: 1968-05-30
Abstract: 1,182,859. Colouring polymers. FARBENFABRIKEN BAYER A.G. 30 May, 1968 [19 June, 1967], No. 26019/68. Headings C3P and C3R. [Also in Division C4] In Example 1, 8 parts by weight of the red pigment are triturated with a stoving enamel consisting of 25 parts coconut oil alkyl resin (40% coconut oil), 10 parts melamine resin, 5 parts toluene and 7 parts glycol monomethyl ether, applied to the substrate and hardened by stoving at 130‹ C. In Example 2, a mixture of 65 parts by weight PVC, 35 parts diisooctyl phthalate, 2 parts dibutyl tin mercaptide, 0.5 parts titanium dioxide and 0-5 parts of the pigment are admixed in mixing rolls at 165‹ C. In Example 3, 10 parts by weight titanium dioxide, 100 parts of an acrylonitrile-buta-dienestyrene copolymer and 1 part of a red pigment obtained by reacting the monoazodyestuff from 3-aminophthalic acid and 2-hydroxynaphthoic - 3 - anilide with 5 - aminobenzimidazolone are mixed in a roll mill at 140‹ to 180‹ C. to obtain a red dough used for injection moulding.
Patent GB-1256401-A (GB)
Title: Improvements in cylinder heads for internal combustion engines
Inventor: JOHNSON GEOFFREY DOUGLAS
IPC: F02F1/42
Filed: 1969-05-22
Abstract: 1,256,401. I.C. engine cylinder heads; mounting spark-plugs. RUBERY, OWEN & CO. Ltd. June 11, 1970 [May 22, 1969], No. 26052/69. Heading F1B. A pair of inlet valves 11 and a pair of exhaust valves 12 are located on opposite sides of a plane which would contain the axis of the cylinder when the head is fitted to a cylinder and the axes of one pair of valves are located in a plane inclined at an angle between 5 degrees and 20 degrees to the plane containing the axes of the other pair. A tube 25 is inserted in the head between the valves to house a spark-plug 26. The inlet valves may be larger than the exhaust valves and the valves operated by respective cam-shafts 20 and 19 mounted in bearings on a carrier 21 bolted to the head. The inlet passages may be shaped to induce swirl in the gases entering the combustion chamber which may be formed partly in the piston crown. The tube 25 passes through a coolant space 28 and the spark-plug lead 36 is connected to the plug 26 by a spring 35 and a metal sleeve 34 in an insulating adaptor 33.
Patent GB-328526-A (GB)
Title: Improvements in or relating to the cutting of teeth on files, saws and similar toolshaving serrated cutting edges
IPC: B23D73/00
Filed: 1929-08-27
Abstract: 328,526. Unger, P. Aug. 27, 1929. File cutting; saws. - Teeth are cut on files, saws &c., by broaching. A series of files &c. e are mounted in a holder d on the table of a planing- machine and the teeth are cut in one stroke by a sectional broach i mounted on the cross-slide.
Patent GB-912064-A (GB)
Title: Improvements in or relating to moistureproof, heat-sealable wrapping material
Inventor: SAMWAYS BRUCE
IPC: D21H19/34
Filed: 1960-07-27
Abstract: 912,064. Laminates. COLODENSE Ltd. June 23, 1961 [July 27, 1960], No. 26133/60. Class 140. A wrapping material comprises a sheet of regenerated cellulose and a sheet of paper secured together by a coating of a vinylidene copolymer composition applied to one or both sheets, both sheets being precoated on their outer surfaces with the same composition. Adhesion is secured by heat and pressure, preferably that of a pair of rollers, one of which is of steel internally heated and preferably coated with a silicone release agent or with P.T.F.E., the other being of silicone rubber. The paper used may be vegetable parchment, glazed imitation parchment, glassine or greaseproof paper. The coating and adhesive composition may comprise at least 80%, preferably 90%, of vinylidene, the remainder being vinyl chloride, acrylonitrile, methyl methacrylate or methyl acrylate, and may be applied in solution in a 65/35 mixture of methyl ethyl ketone and toluene and subsequently dried. To assist adhesion the film and/or the paper may be pretreated with partially condensed urea- or melamine-formaldehyde resin or a mixture thereof, or with a polyethylene- or other -alkylene-imine. The regenerated cellulose film, after coating, may be reverse printed, and/or the paper printed, on the inner surface or surfaces and the reverse printing may be overprinted with a white or coloured background.
Patent GB-464679-A (GB)
Title: Improvements connected with commutator and like brushes
IPC: H02K13/10
Filed: 1935-09-20
Abstract: 464,679. Brushes for dynamo-electric machines; couplings. KASPEROWSKI, O. Sept. 20, 1935, No. 26176. [Class 35] [Also in Group XXXVI] The laminae of a composite brush are insulated by heatresisting material containing a layer of paper, fabric, oxide or oxidized metal foil and have electrically separate conductors secured to them by rivets or pins. In addition to the insulating material insulated rivets may be used to hold the laminae together. A layer of insulation on the brush or holder separates the brush and holder and the outer laminae may be of material of greater mechanical strength. A separate current lead is used for each lamina and where rivetted connections are employed, the rivets are insulated from all the laminae except one, when they pass through all the laminae. In the form shown in Fig. 9, braid 26 is used for the connections and this is secured by pins 27. In the form shown in Fig. 11, the conductor 29, which may be of braid, is secured to one lamina 32 by two rivets 30 and is supported on the head of the brush by an insulating member 41, 38 indicating a plate on which the pressure finger 40 bears, and 42, 43 inserts of elastic damping material. A fixed or adjustable resistance or choke may be connected in series with each brush lamina. In the form shown in Fig. 7, hollow rivets clamp connectors 10, 11, 12 against laminae 13, 14, 15 respectively, the rivets being separated from the other laminae by insulation 19. Known arrangements of similarly insulated conductors which have connections common to several laminae are also described.
Patent GB-817223-A (GB)
Title: Fibreboard blanks for cartons
Inventor: PEACOCK ARTHUR MASTERS
IPC: B65D5/00
Filed: 1956-08-27
Abstract: 817,223. Cartons; wrappers. DAVIDSON & SONS Ltd., C. June 4, 1957 [Aug. 27, 1956], No. 26200/56. Classes 18 and 94(1). A blank for a fibreboard carton has a base 1 from two opposite edges of which protrude extensions 2 cut to outline tabs 11 and scored to fold up into tubular ends each having a wall 8 over which the tabs can bend resiliently to prevent the ingress of cards or letters. Extensions 4 scored to fold over the ends and form side walls 12 and a top 13 protrude from the other two edges. Flaps 9 of the extensions 2 are glued to the base and corresponding parts 13 of the extensions 4 are lined with self-sealing adhesive.
Patent GB-433830-A (GB)
Title: Improved manufacture of thick woven fabrics
IPC: D03D11/00
Filed: 1934-09-12
Abstract: 433,830. Multi-ply fabrics. PATENTVERWERTUNG DR. M. GUNTHER GES., 18, Kopenicker Strasse, Berlin. Sept. 12, 1934, No. 26221. Convention date, April 7. [Class 142 (iv)] A thick woven fabric with a linen like surface comprises a multiply supporting layer consisting of two or more fabric layers or plies A, B, each having its own warp threads 8, 9, and 10, 11 and interwoven with ground wefts (not shown), a covering layer C consisting of weft threads 7 and warp threads 1 to 4 being interwoven with the supporting layer. All the warp thread 1-4 pass through the supporting layer and interweave therewith. Cushioning picks 6 are provided between the supporting and covering layers and/or between the separate plies A, B, which are held together wholly or partially by binding picks 5, 5<a>. The fabric is readily impregnable &c., and may be used for sail cloth, outer and under clothing and for washing articles.
Patent GB-1043417-A (GB)
Title: A new spectrometer and method of spectrometry
Inventor: CAPET MAURIC E
IPC: G01J3/06
Filed: 1963-07-02
Abstract: 1,043,417. Spectrometers. EUROPEAN ATOMIC ENERGY COMMUNITY EURATOM. July 2, 1963 [July 3, 1962], No. 26280/63. Heading G2J. [Also in Division G1] In an arrangement in which light from source 1 illuminates an entrance slit 2 and an image thereof is focussed by an optical system 6 at the entrance slit 3 of a conventional spectrometer 4 containing a disperser 5 and one or more exit slits 7 each associated with a photo-electric receiver such as a photo-multiplier 8, the optical path through system 6 is in the form of a symmetrical W and contains a first parabolic mirror 11, rotatable multi-plane mirror 12 and second parabolic mirror 15. The mirrors 11, 15 may be spaced from slits 2, 3 respectively by a distance equal to their focal length.
Patent GB-1389474-A (GB)
Title: Trailer chassis
IPC: B62D63/08
Filed: 1972-06-06
Abstract: 1389474 Trailers KOBER MANPAR AG 6 June 1972 [14 July 1971] 26394/72 Heading B7B [Also in Division F2] A trailer chassis, particularly for a caravan, includes longitudinals 2 supporting tubular housings 3 within which wheel axles are resiliently supported, the trailer wheels having overrun braking means arranged to apply an equal braking force to each of the wheels. The axles are rubber cushioned in the housings 3, which are detachably mounted by flanges 4 on the longitudinals, and support the wheel hubs 6 via an arm 5. The front ends of the longitudinals are turned in to allow connection to a draw bar. To ensure uniform braking a force distributer 12 is provided. The distributer includes a web 17 interconnecting top and bottom plates which pivotally mount lever 15, each lever between connected at its ends via Bowden cables 13 to the wheel brakes on one side of the trailer. A cable 18 connects the distributer to the overrun brake. To protect the brakes against overloading cable 18 passes through web 17 and is connected to a washer 20 urged forwardly by a pre-stressed compression spring 19, which spring does not start to yield until a predetermined pull applied to an individual wheel brake is exceeded.
Patent GB-396953-A (GB)
Title: Improvements connected with apparatus for practising the game of golf
IPC: A63B71/02
Filed: 1932-09-23
Abstract: 396,953. Golf-practising appliances. EVANS, J. E., Empire House, Mount Stuart Square, Cardiff. Sept. 23, 1932, No. 26457. [Class 132 (ii).] A golf-practising appliance indicates the length of the equivalent drive and its direction. The bar 17 has down-turned and up-turned ends 24, 25 respectively, the end 25 being movable in a slot 27 in a pivoted plate 26 driven into the ground. The end 24 rests on the ground and is provided with a hole forming a bearing for one end of a rod 15, the other end of which is attached to a member 16 slidable along the bar 17. The rod 15 has the golf ball 22 attached to it by a cord 23 and has mounted on it compression spring or springs 18. An indicator 19 is slidably mounted on the bar 17 and comprises a part 19 embracing the bar 17, a pointer 20 adapted to register against a graduated scale marked on top of the bar 17 and a finger-piece 21 for setting the indicator.
Patent GB-191160-A (GB)
Title: Improvements in folding and collapsible tables, chairs, and the like
IPC: A47B3/083
Filed: 1921-10-07
Abstract: 191,160. Foreman, F. Oct. 7, 1921. Folding and collapsable tables: telescopic and expanding tables.-Rails b hinged at d and carrying pairs of legs c are secured by means of thumbscrews e which pass through false or inner rails and engage striking plates g let into the rails b, the arrangement being such that the parts are visible only from below. The hinges d may be omitted. The construction may be applied to extensible tables and to table tops in two parts hinged together.