baber/WOPTO huggingface dataset:
Patent GB-1071801-A (GB)
Title: Method of making continuous strings of animal gut
IPC: A61L17/08
Filed: 1964-05-21
Abstract: A string of indefinite length is made from pieces of animal gut by joining end-to-end flat ribbons of wet animal gut, and twisting the joined ribbon into a string while spraying the gut with a liquid. The pieces of gut may be joined by a pair of knots, adhesive, or metal fasteners.  One or more ribbons are twisted into a string using a twisting apparatus (Figs. 4 and 5 not shown) having a flyer formed by an inverted cup.  Whilst the string is being wound it is sprayed by a chemical or by water. The gut is subjected to conventional chemical treatments-e.g. chromicizing or tanning-either before, and/or during-i.e. by the spray-, and/or after being twisted into a string.  After the final chemical treatment, the string is dried -c.f. Divisin F4-by being wound on a drying rack (Fig. 7 not shown) or by being passed through drying chambers (Fig. 8 and 9 not shown). The dried string-for example while still on the drying rack-is then cut into sutures.  During the various process steps -apart from the string being wound onto the flyer ribbon and the drying step-the ribbon or string is wound onto or unwound from a double-flanged spool floating, or substantially floating, in a water bath - Specification 1,071,802.
Patent GB-167783-A (GB)
Title: Improvements in or relating to coupling and suspension devices
IPC: B63B23/58
Filed: 1918-12-18
Abstract: 167,783. Rollick, W. J. Dec. 18, 1918. Boat-disengaging gear.-In coupling devices of the kind in which one member carries a pin or pins, adapted to cooperate with three sets of cam surfaces on the other member, locking means are provided to lock the parts against axial movement which might cause separation of the parts. In an example, Fig. 2, specially applicable for connecting ships' boats to their raising and lowering tackle, the cam surfaces are formed on a male member f. The pins h are formed on a ring j<4> rotatably mounted at the end of the stirrup o. In the limbs of the stirrup is mounted a rotatable shaft q with a cam-like enlargement rand handlevers s which are so weighted that the enlargement r is normally projected towards the ring j<4>. To connect the members of the device, the shaft q is rotated to withdraw the enlargement r and permit the engagement of the member f with the ring j<4>. The lever is then released and the shaft thereby rotated to project the enlargement towards the ring j<4> and prevent axial movement between the member f and the ring.
Patent GB-1141023-A (GB)
Title: Improvements in the manufacture of block copolymers
Inventor: WATSON JAMES
IPC: C08G69/00
Filed: 1965-05-19
Abstract: 1,141,023. Block copolyamides. COURTAULDS Ltd. 18 May, 1966 [19 May, 1965], No. 21163/65. Heading C3R. A block copolyamide is prepared by dissolving in the same or different aliquots of an inert solvent: (a) a homopolyamide oligomer, and (b) another polyamide oligomer, (a) and (b) having amino and/or carboxyl end groups and treating them with a linking-agent having at least two functional groups capable of reacting with the end groups. The two oligomers may be of different crystallinities, that of lower crystallinity having a M.W. between 1000 and 6000; (b) may be a random copolyamide oligomer. Oligomers specified include nylon 6 and nylon 6/66, both having amino end-groups. Solvents specified include caprolactam, chloral ethylate, and alcohol or aqueous alcohol solutions containing more than 30% of an alkali metal thiocyanate, an alkalineearth metal thiocyanate, ZnCl 2 , zinc thiocyanate, a mixture of alkali metal chlorides or LiBr. Linking-agents specified include polyisocyanates, polyacyl chlorides, polyesters of polycarboxylic acids, organic disulphonyl chlorides and N,N<SP>1</SP>-bis-acyl-bis lactams, e.g. N,N<SP>1</SP>- terephthalyl - bis caprolactam. The linking- agent may first be reacted with one oligomer, and the product reacted with the other. In this case 1 mole of cross-linking agent is used per end-group in the first oligomer. The product may contain 5-95% of either oligomer. It may be elastic and may be spun into fibres.
Patent GB-681408-A (GB)
Title: Manufacture of plough shares
Inventor: OWEN ERNEST WILLIAM BEECH
IPC: A01B15/04
Filed: 1950-08-28
Abstract: 681,408. Plough shares. RUBERY, OWEN & CO., Ltd. June 14, 1951 [Aug. 28, 1950], No. 21193/50. Class 6(i) [Also in Group XXII] A steel ploughshare comprises a gunnel 11 cut from a section having an upstanding ledge 12 along one edge, a wing 21 cut from a section having a bevelled edge 17, the edge 18 of the wing then being welded, to the upper edge of the ledge 12, and a nose 23 of high-carbon steel welded to the gunnel and wing. The ledge 12 of the gunnel is inclined at an angle of about 75 or 80 degrees to the base portion. The assembly is pressed or drop-forged into final shape, Fig. 5, and whilst the share is hot, holes 25 to receive securing bolts are punched in the wing. Final heat-treatment toughens the share and hardens the nose 23.
Patent GB-441691-A (GB)
Title: Improvements in or relating to the tuning of radio receivers
IPC: H03J7/16
Filed: 1934-07-20
Abstract: 441,691. Wireless receiving-apparatus. COLE, Ltd., E. K., Priory Crescent, Southendon-Sea, and MARTIN, A. W., 1, Thames Close, Leigh-on-Sea. July 20, 1934, No. 21210. [Class 40 (v)] In a superheterodyne receiver, the production of an untrue intermediate frequency causes a control current to flow to correct the tuning of the receiver. the magnitude of the control current increasing as the receiver approaches resonance and ceasing at a point near resonance. The Figure shows a local oscillator V3. Beats between the local oscillation and the intermediate frequency are rectified by a diode 9 and operate a relay 11 to control a motor 13 driving a condenser 14 in the local oscillator circuit.
Patent GB-306110-A (GB)
Title: Process and apparatus for producing paper sleeves and coils with reinforcements wound around
IPC: B31C11/00
Filed: 1928-07-23
Abstract: 306,110. Majer, C. Feb. 16, 1928, [Convention date]. Paper tubes.- Paper sleeves or bobbins with a woundon reinforcement are produced by engaging the end of a strip 7 with the loose edge 12 of a paper sleeve 11 formed on a rotating conical mandrel 3, the strip being coiled on by the rotation of the mandrel. The strips 7 are either cut preliminarily and fed by hand or mechanically, or they are mechanically cut from a paper sheet fed forwards to the machine parallel to the mandrel. The strips are cut oblique for spiral reinforcements and straight for cylindrical reinforcements. The strips are fed to the mandrels by oscillating arms 4 carrying guide-plates 5, 6, brakes 8 being arranged to press the strips during winding. The brake is arranged to exert a stronger pressure at one edge to ensure uniform winding.
Patent GB-139118-A (GB)
Title: Improvements relating to ladders
IPC: E06C7/16
Filed: 1919-08-29
Abstract: 139,118. Hodges, H. Aug. 29, 1919. Ladders.-A ladder platform comprises longitudinal members each of two similar bars a' to which are bolted hook fittings c to engage the rungs, a platform d bolted to the longitudinal members and to an extension c<1> of the hook member, and adjustable tension members b. The hooks c are secured to the longitudinal members by U-shaped fittings e and bolts f and are retained on a rung by means of the pivoted plates g.
Patent GB-1417050-A (GB)
Title: Reactor apparatus
IPC: B01J8/06
Filed: 1973-05-04
Abstract: 1417050 Temperature control of catalytic endothermic reaction DEGGENDORFER WERFT UND EISENBAU GmbH 4 May 1973 [21 June 1972] 21280/73 Heading B1F Heat for a gaseous endothermic catalytic reaction in the catalyst tubes of annular tube bundle 4 is provided by heat exchange medium flowing upwardly over the tubes, the medium getting its heat by passing down the space surrounding tubes 24, through which tubes flow hot gases from combustion chamber 20 or pass electrical heater rods (31, Fig. 4, not shown).
Patent GB-238908-A (GB)
Title: Improvements in wind-screen protectors for motor vehicles
IPC: B60J1/20
Filed: 1925-08-25
Abstract: 238,908. Berbig, K. Aug. 25, 1924, [Convention date]. Void [Published under Sect. 91 of the Act]. Windows, preventing condensation on. - A sleeve 1 of rubber &c. is attached by suction to a wind-screen on the line of vision to prevent adherence of rain, dust, &c. Internal partitions &c. are provided to counteract air currents and the sleeve may be connected with an air pump for forcing in or exhausting air. The sleeve may be held extended by a spring and hooks may be attached to the base, by which it is held collapsed when desired. The base may be made hollow for attachment to the screen or separate suckers may be provided.
Patent GB-392024-A (GB)
Title: Improvements in or relating to plastic compositions
IPC: C04B28/14
Filed: 1932-07-29
Abstract: A water-soluble natural gum, such as gum arabic, and an alkali are added to calcined gypsum plaster, such as plaster of Paris or Keene's cement, to decrease the amount of water necessary to form a flowable mix.  The term alkali means the group comprising the bases of the alkali or alkaline earth metals or of ammonium, and includes quicklime, hydrated lime and potassium, sodium and barium hydrate. Accelerators, retarders, water-proofing ingredients such as heavy metal soaps, asphalt, wax, &c., and fillers such as asbestos or other fibres, sand, clay, silex, &c. may be added. Examples are given of mixtures containing casting plaster with 1-2 per cent of gum arabic and 0.5-1 per cent of hydrated lime, although the gum may range from 0.4-3 per cent and the lime from 0.2-3 per cent.  The Specification as open to inspection under Sect. 91 comprises also the use, instead of gum, of saccharides such as starch, dextrin, lactose, sucrose, maltose, glucose, fructose, mucilage, cane sugar, maple syrup, honey and molasses.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1169547-A (GB)
Title: Method of Intermittently Dispensing an Aerosol Product
Inventor: GOLDSHOLL MORTON
IPC: B65D83/16
Filed: 1966-10-28
Abstract: 1,169,547. Dispensing liquids under gaseous pressure. M. GOLDSHOLL. Oct.28, 1966, No.21458/69. Divided out of 1,169,546. Heading F1R. In a method of intermittently dispensing an aerosol product using a battery operated motor the motor is energized intermittently by a gravity switch so that the battery is discharged only when the aerosol is dispensed. The motor 20 rotates the gravity switch 31, 38 and also a plate 29 having a conducting ring 56 engaged by contacts 54, 55 for completing the circuit to the motor 20 from a battery 21, and diametrically opposed contact plates 58 insulated from the ring 56 and engaged by the contact 55 to de-energize the motor 20 after each 120 degrees turn of the plate 52. The plates 58 and the ring 56 are connected as shown to the contacts 38 of the gravity switch so that when the conducting plunger of the latter has fallen to inter-connect two contacts 38, the motor circuit is completed. The motor 20 drives a cam 25 Fig.4 (not shown) for intermittently opening a valve in a dispenser nozzle 18 of an aerosol container 14 for spraying moth preventative or other spray.
Patent GB-830616-A (GB)
Title: Improvements in textile drafting apparatus
Inventor: WATSON WILLIAM HAROLD
IPC: D01H13/04
Filed: 1956-07-11
Abstract: 830,616. Drafting apparatus. T.M.M. (RESEARCH) Ltd. July 18, 1957 [July 11, 1956], No. 21460/56. Class 120(2) The final drafting zone of textile drafting apparatus is a low-draft zone that includes means for imparting a false twist. The conventional false-twist drafting zone of a woollen ring spinning frame may be preceded by a single pair of rollers 21, 22 only or by a single apron device 23 also. An upper roller 24 may be arranged as a fibre control roller or as a positive nip drafting roller. Each drafting zone may be provided with false-twist devices.
Patent GB-230729-A (GB)
IPC: B65D1/08
Filed: 1924-09-11
Abstract: 230,729. Stern - Verschl³sse Ges- June 7, 1924, [Convention date]. Stoppers with pouring outlets. -In a glass sprinkling-bottle made by machine, screw threads 3 are formed directly on . the glass of the neck 2, which is thickened to leave only a narrow opening 4. As shown, the upper surface 5 of the neck is convex to fit a corresponding surface in a metal screw cap.
Patent GB-1365667-A (GB)
Title: Oxidation of metal sulphides
IPC: C22B3/00
Filed: 1973-05-07
Abstract: 1365667 Oxidation of sulphides INTERNATIONAL NICKEL CO OF CANADA Ltd 7 May 1973 [8 May 1972] 21603/73 Heading C1A Sulphide containing materials are oxidized with the production of elemental S in an aqueous slurry to which a water-immiscible sulphur-solvent, preferably a chlorinated hydrocarbon, is added. The oxidation is preferably effected by O2 at above 110‹ C. and at a partial pressure of 10-30 atmospheres whilst the slurry is vigorously agitated. After oxidation the solvent may be allowed to separate and the S to crystallize. The starting material should preferably be able to pass a 100 mesh Tyler screen. The sulphide materials may contain Fe, Ni, Cu, Zn, Pb, Co, Sn, Ru, As and Sb. A list of suitable minerals is given.
Patent GB-574978-A (GB)
Title: Improvements in or relating to electrical combining circuit arrangements
IPC: H03F1/36
Filed: 1943-12-24
Abstract: 574,978. Signal combining circuit. WHITE, E. L. C. Dec. 24, 1943, No. 21678. [Class 40 (iv)] [Also in Group XL] Signals from two or more sources 1, 2 such as microphones or television cameras are combined in such a way that each signal circuit is unaffected by the presence of the others by connecting the signal circuits in parallel to the input circuit of a tube 5 having a feed-back resistance 12 connected between its output and input circuits so as to reduce its effective input resistance to a value small compared with the resistance of any of the signal circuits and preferably compared with that of all of such circuits in parallel. Resistances 3 and 4 may be adjustable or may be fixed and connected to the sliders of potentiometers connected across the sources. These resistances may be the internal resistances of the sources. Blocking condensers 6, 11 are omitted when the currents to be mixed have direct current components, the grid of the valve being suitably biassed.
Patent GB-1298423-A (GB)
Title: A hand-held diagnostic instrument
IPC: A61B5/053
Filed: 1971-04-19
Abstract: 1298423 Diagnostic instruments SIEMENS AG 19 April 1971 [12 Feb 1970] 21685/71 Heading A5R A hand-held diagnostic instrument for producing an adjustable stimulation current comprises a probe attached to terminals 7, 8 for applying a stimulation current to a patient, an electrical energy storage device 1, a signal chopping device I, a voltage transformer III with an input coupled to an output of the chopping device, a rectifier IV with the input coupled to the output of the transformer, and a switch 2 coupled to an output of the rectifier for applying square wave voltage pulses to the probe for driving the stimulation current. The instrument may be used for testing dental pulp and, as shown, the signal chopping device I is connected to a power regulating stage II serving for amplitude adjustment of the output voltage of the instrument. This regulating stage comprises a voltage divider 3, a transistor 4, and a series resistance 5.
Patent GB-154987-A (GB)
Title: An improved sock support or suspender
IPC: A41F11/00
Filed: 1919-09-04
Abstract: 154,987. Clauson, A. E. Sept. 4, 1919. Sock suspenders.-A thin strip a of vulcanite, celluloid, &c. curved at b to fit the top of the instep and extending up the leg is worn inside the sock and secured thereto by studs e, d engaged by wire loops.f, g. An elastic h maintains the loops and studs in engagement, and an elastic i secures the loops to the support a.
Patent GB-586812-A (GB)
Title: Improvements in means for converting a rotary motion into a reciprocatory motion of variable stroke, particularly for use on machine tools
IPC: B24B47/16
Filed: 1944-11-06
Abstract: 586,812. Gearing for converting rotary into reciprocating motion; cam gearing; screw-andnut gearing. OWENS, J. I. Nov. 6, 1944, No. 21741. [Classes 80 (i) and 80 (iii)] [Also in Group XXVIII] A mechanism for obtaining a variable linear motion from a rotary motion is described in connection with a feeding attachment of a screw-thread grinding machine. As shown, rotation of a handwheel 11 to rotate the work supported upon a centre 5 and engaged by a driver 12 actuates through a face cam 7 a spring-loaded rod 9. A lever 15 is pivoted at one end 9a to the rod 9 and at its other end is slidable in a pivotal block 18 carried by a slide block 20, the position of which is adjustable by a screw 23. Intermediate its ends the lever 15 slides in a bracket 17 which is pivotally connected at 16 to a spindle 4 carrying the centre 5. Thus the linear movement of rod 9 on rotation of cam 7 is transmitted to the spindle 4 but proportionately reduced according to the adjustment of the block 20. A stop normally limits the rotation of the cam to one revolution and the hand wheel is adjustably secured thereto by screws 13. A rate of feed of the work centre 5 can be obtained corresponding to any desired thread on the work. In a modification the feed of the centre 5 over a number of turns of the handwheel 11 is obtained by replacing the face cam 7 by a screw engaging a nut. This nut is connected to the centre spindle by an adjustable lever as before to vary the linear movement. transmitted. In another arrangement a reduction gearing is interposed between the handwheel and the cam so that two or more revolutions of the handwheel are required for a full stroke of the centre spindle. An application of the mechanism shown to a variable-stroke fuel pump is mentioned in which case the cam rotates continuously and the centre spindle is replaced by a pump piston.
Patent GB-929647-A (GB)
Title: Improvements in seed boxes
IPC: A01C1/02
Filed: 1958-07-08
Abstract: 929,647. Seed trays. E. H. JOHNSON. July 8, 1959 [July 8, 1958], No. 21796/58. Class 18. [Also in Group I] A synthetic resin seed tray comprises at least one drainage aperture 10 in either the base or the lower part of a side wall, and is provided with means whereby a plurality of such trays may be stacked in spaced, superposed relation to each other. Such means comprise angular feet 13 at the lower corners of the tray and either fixed or removable projections 14 on the inside of the upper corners of the tray, so that when the trays are superposed, the projections of one fit inside the angular feet of the tray above. If, as may be the case, the bases of the trays are corrugated, the upper ends of the uprights are shaped to conform to the corrugations. A porous insert may be supported in each tray either above or below the level of the drainage apertures, according to whether it is required to keep the interior of the tray moist or dry.
Patent GB-490796-A (GB)
Title: Improvements in and relating to sound absorbing ventilating casement windows
IPC: E06B7/10
Filed: 1937-08-07
Abstract: 490,796. Noise-excluding double windows. FISK, SIR E. T. Aug. 7, 1937, No. 21823. [Class 20 (iii)] A sound-excluding ventilating window is provided with two or more glazed panels leaving openings on alternate sides between one edge and the frame, and with one or more of the panels projecting at its free edge into a recess 20 with an air space clearance. The panels may have a part hinged or adapted to slide horizontally and additional panels 24, 25 adapted to close the opening completely may be provided. The recess may be lined with sound-suppressing material 16, such as felt or sponge rubber.
Patent GB-1262785-A (GB)
Title: Improvements in or relating to phloroglucinol derivatives
Inventor: LAFON LOUIS
IPC: A61K31/14
Filed: 1969-04-29
Abstract: 1,262,785. Phloroglucinol derivatives. ORSYMONDE. 23 April, 1970 [29 April, 1969], No. 21889/69. Heading C2C. Novel compounds I (including salts thereof) where R 1  and R 2  are C 1-3  alkyl, R 3  is alkylene and signifies an aliphatic amino group or a saturated N-heterocycle optionally containing a second hetero atom, are made by reacting a 3,5- dialkoxy-phenol with an appropriate chloroalkylamine in the presence of an alcohol and sodium. Pharmaceutical preparations having antispasmodic, choleretic, tranquillizing and vasodilating action contain I as active ingredient; administration is, e.g. parenterally or orally.
Patent GB-479136-A (GB)
Title: Improvements relating to gas and like cookers
IPC: F24C13/00
Filed: 1936-08-08
Abstract: 479,136. Gas &c. cooking - stoves. MOORHOUSE, O., and MOORHOUSE, A. H. Aug. 8, 1936, No. 21921. [Class 126] An attachment for a gas or like cooking- stove comprises a ring a adapted to be placed over one of the hot-plate burners and fitted with a coil c through which, by means of pipes h, i, water is circulated to and from a flat shallow vessel d located in the place usually occupied by the plate rack over the cooker, the vessel d serving as a hot shelf and the ring a as a support for utensils to be heated. The vessel d, which is supported by a bracket e mounted on the back plate f, is fitted with a glass expansion chamber j which also serves as a level indicator and for filling purposes, and with a drain cock g through which warm water can be drawn off if required.
Patent GB-294668-A (GB)
Title: Improvements relating to aeroplanes
IPC: B64C11/00
Filed: 1928-07-28
Abstract: 294,668. Gallet, M., and Anderson, A. B. July 28, 1927, fConven.tion date]. Propelling by means other than adhesion driving-wheels and racks.-The body of an aeroplane comprises a pair of longitudinal tubular members 7 in the front ends of which are mounted motors 11 and propellers 12. The rear ends of the members are formed with depressions 14 in which are mounted turbines 16 actuated by the air currents to generate power for the motors. A central portion 5 between the members 7 is formed with vertical passages 6, lifting propellers 20 being mounted in the passages. The wings 9 have longitudinal passages 10. The longitudinal passages in the wings and body may be of rectangular, circular or oval cross-section. The members 7 may have flared front ends, as shown in Fig. 6, which also shows a modified arrangement of turbines 18. In a modification. the central portion 5 is tubular, and has a generator driven by an air-screw at its front end. According to the Specification as open to inspection under Sect. 91 (3) (a) the method of propulsion may be applied to land vehicles. This subject-matter does not appear in the Specification as accepted.
Patent GB-998586-A (GB)
Title: Unidirectional clutches
Inventor: PREECE KENNETH
IPC: F16D41/066
Filed: 1961-06-19
Abstract: 998,586. Ratchet clutches. JOSEPH LUCAS (INDUSTRIES) Ltd. June 7, 1962 [June 19, 1961], No. 21999/61. Heading F2C. In a one-way wedging roller clutch for engine starting apparatus, wherein rollers 7 are located between a cylindrical driven member 3 and a driving member 4 having circumferential recesses tapering from shoulders 6, arcuate shoes 8, acted on by compression springs 10 reacting on pegs 9 on the driving member 4, urge the rollers into their wedged position and to prevent unintentional jamming of rollers or shoes, have such circumferential length that when a shoe is in contact with one adjacent roller it has only a small clearance of say 0.006 inch between its opposite end and the other adjacent roller when said two rollers occupy similar positions relative to their adjacent shoulders 6. The shoes are recessed in a direction axial to the clutch to accommodate the pegs and springs.