baber/WOPTO huggingface dataset:
Patent GB-576001-A (GB)
Title: New or improved thread feeding means
IPC: D04B15/38
Filed: 1943-11-04
Abstract: 576,001. Knitting-machines. BERRIDGE & CO., Ltd., I. L., and COLTON, L. H. Nov. 4, 1943, No. 18274. [Class 74 (ii)] [Also in Group XXXV] Thread-feeding means comprising a pair of conical rollers 10, 11 or equivalent tapered feeding members and means responsive to the thread tension for determining the position of the thread axially of the tapered members is provided with electrical apparatus for so moving the thread axially of the members. The thread-feeding means may be employed for supplying an elastic thread to the needles of a circular knitting- machine under substantially constant tension. In one form, the thread 2 is passed around a jockey pulley 5 supporting a shutter 16 arranged between a light source 17 and a photo-electric cell 18. The cell 18 is in circuit with a motor 19 in such manner as to vary the resistance of the motor field circuit to vary the speed of the motor. A governor 20 driven by the motor is connected to the arm 8 carrying the thread guide 7. In a modification, the jockey pulley 5 is carried by a lever provided with a wiper in contact with a variable resistance in the motor circuit.
Patent GB-1423261-A (GB)
Title: Body implantable lead
IPC: A61N1/05
Filed: 1973-04-16
Abstract: 1423261 Implantable electrodes MEDTRONIC Inc 16 April 1973 [17 April 1972] 18296/ 73 Heading A5R An implantable lead 10 for cardiac stimulation, comprises conductors 12, 14, terminals 22, 24 for connecting the conductors 12, 14 respectively to a source of electrical energy, a biologically inert covering 16 for the conductors 12, 14 whose ends protrude from the covering 16 and are wrapped helically therearound and partially embedded therein to form electrodes 34, 36 integral with the conductors 12, 14 respectively and exposed around the entire circumference of the covering 16. The covering 16 may be silicone rubber and the conductors 12, 14 and the connectors 22, 24 may be platinum or platinum-irridium alloy. A coil 26 for enabling the lead 10 to be guided in a body vessel is a closely wound helix having a crimped end 30 and an open end 28 through which a stylet may be inserted for guiding the lead 10. In an alternative embodiment, a lead incorporates only one conductor.
Patent GB-1025253-A (GB)
Title: Apparatus for and method of demagnetizing
IPC: B23P25/00
Filed: 1964-05-01
Abstract: 1,025,253. Control systems for demagnetizing electromagnets. A. K. LITTWIN. May 1, 1964 [May 1, 1963], No. 18320/64. Heading H2H. A circuit to magnetize and de-magnetize a permanent magnet chuck comprises a tapped transformer 12s1 with a rotary tapped switch 20 driven by a motor 18 which also actuates a switch 22 interrupting the A.C. supply 10 and reversing the D.C. output from a rectifier 40. To magnetize the chuck a switch 82 is moved to the " Full " and " Change " positions which energizes the motor to drive the switch 20 from the off position through the magnetizing positions to the residual position where the motor circuit is interrupted by a limit switch 31. To remove one or more workpieces from the chuck switches 102a, 102b are actuated completing a circuit through a valve 72 and relay D, D1 which energizes a relay CU, CU2, imposing a reverse current through the chuck rail 24, which due to the volt drop across a resistor 64 extinguishes the tube 72, and demagnetizes a polarized relay A which extinguishes a signal lamp 68 and illuminates a lamp 32. To remagnetize the chuck, " Recharge " switch 90 is depressed, energizing relay E, E2 which energizes the reverse field winding 148 moving the switch 20 to the full power position where the winding 148 and relay E are de-energized by a cam switch 29, after which the motor returns the switch to the residual position. Demagnetizing is performed by moving the switch 82 to the "Release" position completing the circuit to the forward field coil 96 which reduces the tapping switch 20 voltage with the reversing switch 22 operated between each two successive steps so that the chuck is demagnetized by reducing the coil 24 excitation to a negative valve, the switch 20 stopping in the off position when the cam switch 27 is opened.
Patent GB-869534-A (GB)
Title: Improvements in the manufacture of polyethylene
IPC: C08F10/00
Filed: 1957-06-11
Abstract: A process for polymerizing ethylene at a pressure of at least 15,000 p.s.i. and a temperature of 80 DEG  to 180 DEG C., in the presence of a nonmetallic ethylene polymerization catalyst and from 5% to 50% by weight based on the weight of ethylene, of a saturated acyclic aliphatic hydrocarbon containing 3-7 carbon atoms and in the absence of any other diluent or solvent, yields solid homopolymers of a molecular weight of at least 20,000; a density of at least 0,930; a stiffness of at least 25,000 p.s.i.; a heat distortion temperature of at least 110 DEG C.; and an inherent melt viscosity in the range 0,5 to 1,5 decilities per gram in tetralin at 100 DEG C.  The hydrocarbons exemplified are n-propane, n- or iso-butane, pentane or iso-pentane, hexane or n-heptane, and are used in preferred proportion of 10% to 15% of the ethylene. Catalysts mentioned are peroxy compounds such as benzoyl, lauroyl, and di-t-butyl peroxides and t-butyl perbenzoate, and compounds such as azobisisobutyronitrile, methyl azobisisobutyrate and diethyl 2 : 21-azobis-(2-methyl propionate), in amounts of from 5 parts per million to 5% by weight.  The polymerization may be carried out in a single or multi-stage process, in an autoclave or tubular reactor.
Patent GB-1385453-A (GB)
Title: Process for the preparation of active carbon from sludge from waste water treatment plants
IPC: C01B31/08
Filed: 1973-04-17
Abstract: 1385453 Active carbon from waste sludge THULE-THERM AB 17 April 1973 [24 April 1972] 18430/73 Heading C1A Active earbon is made from sludge containing organic matter from waste water treatment plants by first drying the sludge to a solid matter content of at least 50% by wt., and then pyrolysing the dried product by direct heating under non-oxidizing conditions. The pyrolysis gases are preferably recycled to be burnt in the first stage drier and between the two thermal steps the dried product may be sprayed with water, oil sludge, tall oil or sulphite waste liquor.
Patent GB-918977-A (GB)
Title: Improvements relating to conveyors
Inventor: HODGES LEONARD SINCLAIR
IPC: B65G45/14
Filed: 1958-06-10
Abstract: 918,977. Cleaning devices for conveyers. MASSEY FERGUSON (UNITED KINGDOM) Ltd. May 29, 1959 [June 10, 1958], No. 18439/58. Class 78 (1). A cleaning device for a rotary or endless conveyer which has a load-carrying floor composed of a plurality of wires 12 extending in the direction of movement and which are interconnected by cross-bars 14, comprises a generally cylindrical member 23 having rows of radiallyextending fingers arranged such that successive rows of fingers extend into successive rows of spaces between the cross-bars 14 of the conveyer, the member 23 being rotated by the engagement of the bars 14 with the fingers, the rotation being controlled by friction means. The member 23 is formed by a series of wheels 32 each having radially extending fingers, the wheels being mounted on a splined hub 30 to ensure registration of the fingers on the various wheels. Hub 30 is mounted for rotation on a shaft 22. An axially sliding thrust block 37 is mounted on a squared portion 36 of shaft 22 and is urged by a spring 39 against a friction disc 38 secured to a clamping plate 34 of the member 23 so as to restrict free rotation of the latter. In a modified construction of the conveyer (Figs. 3, 4, not shown) the cross-bars 14 are tubular and the wires 12 are threaded through them. In both embodiments inwardly extending projections 15 are secured at intervals to the wires 12 to engage material supplied to the floor for elevation thereby to a higher level.
Patent GB-146446-A (GB)
Title: Fuel supply system for internal combustion engines
IPC: F02B1/00
Filed: 1920-07-03
Abstract: 146,446. Loffler, S. Sept. 24, 1915, [Convention date]. Void [Published under Sect. 91 of the Act]. Spray carburettors.-Liquid fuel is fed from a main reservoir B to an intermediate reservoir Z by the pressure of the exhaust, the flow to the intermediate reservoir being controlled by the float 1. The fuel flows by gravity to the carburettor or to the fuel pump &c. If the reservoir Z is damaged, the main reservoir may be connected direct to the carburettor of the valve r. If the main reservoir empties, exhaust passing through the reservoir Z and out through the pipe k may be used to sound a whistle. A baffle 4 prevents fuel being blown out by the exhaust. Inlets a, g allow for the refilling of both reservoirs.
Patent GB-702139-A (GB)
Title: Improvements in or relating to waveguides
Inventor: ROBERTSON-SHERSBY-HA ROBERT BR
IPC: H01J23/24
Filed: 1950-07-25
Abstract: 702,139. Waveguides. MINISTER OF SUPPLY. July 10, 1951 [July 25, 1950], No. 18523/50. Class 40 (8) A device for guiding slow electromagnetic waves consists of an elongated flat sheet having inductive faces. For this purpose the sheet may be provided with transversely arranged slots each approximately half a free-space wave-length long. As shown the sheet may be thickened along a central region to increase the self capacity of the slots. The device may be used in free space or be arranged along a central plane of a rectangular shaped wave guide.
Patent GB-630857-A (GB)
Title: Method and device for combusting waste liquors with recovery of chemicals
IPC: D21C11/06
Filed: 1946-06-20
Abstract: <PICT:0630857/III/1> Solutions, such as cellulose waste liquors, are sprayed into the combustion zone of a furnace with a tubular boiler below a tube system, forming part of the boiler, which consists of vertical, freely suspended, finger-like elements so that the solution is dried, the combustible constituents being burnt below, and the ash deposited on, the tube system.  The tube system 2, Fig. 1, is arranged to be pendant in the upper part of the combustion zone 1. The solution is sprayed in via nozzle 3, the deposits of ash caught on the tubes being shaken therefrom by shaking means 11, operated by electric motor 8.  The dislodged deposits, which may contain chemical constituents, are removed in a molten state from the hearth through outlet 13.  In a modification, Fig. 5 (not shown), the pendant tubes are increased in number towards the exhaust flue and other tubes are disposed in the flue.
Patent GB-329543-A (GB)
Title: Process for the separation of iron from solutions containing cobalt and rich in iron, such as those obtained by lixiviating roasted pyrites
IPC: C22B3/10
Filed: 1929-06-18
Abstract: 329,543. Potts, H. E., (Orkla Grube- Aktiebolag). June 18, 1929. Purifying solutions of cobalt, zinc, etc.; ferric hydroxide.-A process for separating iron from solutions containing cobalt, and rich in iron, such, for example as obtained by lixiviating chlorinated roasted pyrites, and which may also contain zinc and copper, includes the step of treating the solution with an alkali metal chlorate. preferably sodium chlorate. Scrap iron is first added to precipitate copper, and sodium sulphate may be removed by cooling to 10‹ C. An alkali metal chlorate, preferably sodium chlorate (0.33 kg. to each kg. of iron) is added to the solution. say at 60‹ C., and after about an hour the iron is oxidized, and is then precipitated by lime, suspended in water. Sulphur contained in the solution is also precipitated partly as basic iron sulphate and partly as gypsum. The precipitate is filtered off. The nitrate may be treated to recover cobalt, zinc, and other valuable constituents.
Patent GB-130866-A (GB)
Title: Means for Playing a New Table Game.
Inventor: EDWARDS THOMAS JOSEPH
IPC: A63F3/00
Filed: 1918-11-15
Abstract: 130,866. Edwards, T. J., (trading as T. J. E. Games Co.). Nov. 15, 1918. Board games.-Means for simulating a game of football consist of a board, such as shown in the Figure, and suitably marked with rows of circles, squares or like spots, along which pieces representing men are moved The board is also marked with lines along which the ball is passed, the pieces being provided with means for carrying the ball. As shown, the board is marked with parallel rows of circles of which some are marked so as to represent the position of usual players on the field. The pieces or men are made so as to carry the ball as for instance by being provided with a ring or a washer.
Patent GB-491995-A (GB)
Title: Fabric draw off mechanism for straight-bar knitting machines
IPC: D04B11/32
Filed: 1937-07-06
Abstract: 491,995. Knitting-machines. KNECHT, R., and LIEBERKNECHT, K., (trading as LIEBERKNECHT, K., [Firm of]). July 6, 1937, No. 18754. Convention date, Dec. 11, 1936. [Class 74 (ii)] In a straight-bar machine, the fabric drawoff bands 3, at the ends remote from the take-up shaft 1, are provided with welt rod engaging hooks 14 and connected by cords 6 to a weight loaded shaft 11 for restoring the hooks to initial position. The welt rods 5 of a number of sections can be connected simultaneously by attaching the bands to a common take-up shaft. The bands 3 of each section are connected by a rail 16 which slides on the welt bridges 10 during the take-up and each hook 14 has an abutment 15 to prevent the rods 5 rolling away. A shaft 11 may be provided for each section.
Patent GB-687396-A (GB)
Title: Improvements in or relating to devices for cutting seaweed under water
Inventor: HAY JOHN MORRISON
IPC: A01D44/00
Filed: 1951-08-09
Abstract: 687,396. Harvesting seaweed. SCOTTISH SEAWEED RESEARCH ASSOCIATION. Aug. 9, 1951, No. 18757/51. Classes 6(ii) and 6(iii) Seaweed is severed by cutters 4 and drawn to the surface by suction through the conduit 3. Some of the intaken water escapes through movable screens 9 in the convergent part 2 of the conduit. The screens are formed of endless belts of coarse metal gauze passing over rollers 10 and arranged so that the inner run of the belt passes towards the rear. The cutters 4 co-operate with a sole-plate 8, are driven by an electric motor 20 and, in the construction shown, consist of wires stretched between end-plates. They may, however, be of the reciprocating blade or the band saw type; or cutting blades may be carried by the rotor of a propelling pump. Skids 11 or wheels keep the apparatus clear of the sea-bed. Large-diameter pneumatictyred wheels or buoyancy tanks may be fitted to reduce friction with the sea-bed. Tendency to rise is counteracted by an inclined plate 19.
Patent GB-437540-A (GB)
Title: Improvements in and relating to embossing presses
IPC: B41F19/06
Filed: 1934-06-26
Abstract: 437,540. Embossing-presses. HOUGHAM, C. H., 30, Halstead Road, Winchmore Hill, and HOWES & CO., Ltd., H., 53, Mansell, Street, both in London. June 26, 1934, Nos. 18859/34 and 14972/35. [Class 100 (ii)] A hand-operated embossing-press comprises a base 1 with an overhanging arm 2 secured at one end thereto and formed with a boxlike free end 4, the base 5 of which is apertured to allow a plunger 6 carrying a die 13 to slide therethrough, the box-like end 4 of the arm totally surrounding the plunger, and the base 5 thereof forming a ledge against which abut the lower ends of a pair of coiled compression springs 8 disposed in the box-like end 4, a pair of lateral abutments 9 on the plunger engaging the upper ends of the springs, and a hand lever 11 pivoted in the box-like end 4 and formed at such end with a cam 10 engaging the upper end of the plunger. The plunger 6 is preferably of square cross-section, and the abutments 9 comprise a pin passed transversely therethrough. The box-like end 4 is recessed at 7 to receive and support the lower ends of the springs 8. A small barrel-type lock 14 is fitted in a recess bored in one side of the arm 2, and a slot 16 provided in the plunger 6 is adapted to receive the bolt of the lock, preferably when the die 13 is pressed against the fixed die member 3, whereby unauthorized use of the press is prevented. If desired, two dissimilarly warded locks may be provided on opposite sides of the arm 2. The plunger and springs may be removed bodily from the press on the removal of the pivot pin 12 of the handle 11.
Patent GB-225798-A (GB)
Title: Improvements in fastenings for railway rails
IPC: E01B9/66
Filed: 1924-08-08
Abstract: 225,798. Lieder, O. E. Aug. 8, 1924. Chairs with adjustable or separate jaws; sleepers, securing rails to. - The rail 6 is supported on a sole plate 2 secured to a sleeper 1 and formed with slots 5 to receive on each side of the rail a dovetailed and crossheaded jib 4, which clamps the rail in place by the aid of a cotter 8 wedged between a lug 10 on the sole plate and the web of the jib, and a cotter 7 between the head of the jib and the foot of the rail. When a metal sleeper is employed the sole plate may be dispensed with, the top of the sleeper being adapted to take the jib and the cotter 8.
Patent GB-1213172-A (GB)
Title: Dibenzothiazepine derivatives and production of the same
IPC: C07D281/16
Filed: 1968-04-22
Abstract: 1,213,172. Dibenzothiazepine derivatives. FUJISAWA PHARMACEUTICAL CO. Ltd. 22 April, 1968 [28 April, 1967], No. 18954/68. Heading C2C. Novel dibenzothiazepine derivatives of Formula I in which each of X 1  and X 2  is a hydrogen or halogen atom, R 1  is an alkyl, cycloalkyl, haloalkyl or aralkyl group or an alkyl group substituted with R 3  in which R 3  is an amino, alkylamino, dialkylamino or a saturated 5 to 7 membered N-heterocyclic group and R 2  is hydrogen or has the same meaning as R 1 , provided that at least one or R 1  and R 2  is an alkyl group substituted with R 3 , and non-toxic acid addition and quaternary ammonium salts thereof, are prepared (a) by reacting a compound of Formula II in which each of R 4  and R 5  is hydrogen, cycloalkyl, alkyl, haloalkyl, aralkyl or alkyl substituted with R 3 , R 3  being as defined above, provided that at least one of R 4  and R 5  is hydrogen, with an organic lithium compound and a compound of Formula R 1 -X 3 , in which X 3  is an acid residue, or with a compound of Formula R 1 -X 3  in the presence of an alkaline condensing agent, and, if necessary, treating the resultant compound of Formula I in which R 1  or R 2  is haloalkyl with an amine of the formula R 3 -H, or (b) heating a compound of Formula III in which X 4  is an acid residue, to obtain a compound of Formula I and, if desired, converting the resulting compound (I) into an acid addition or quaternary ammonium salt. 5 - Methyl - 11 - (3 - chloropropyl) - 5,11- dihydrodibenz - [b,e][1,4] - thiazepine is prepared by reacting 5 - methyl - 5,11 - dihydro - dibenz- [b,e][1,4] - thiazepine with phenyl lithium and then with 1 - bromo - 3 - chloropropane. Pharmaceutical compositions having antidepressant activity comprise a compound of Formula I together with a carrier. The compositions may be administered orally or parenterally.
Patent GB-1129755-A (GB)
Title: Process for producing aluminium base alloys containing copper and magnesium
Inventor: FOERSTER GEORGE STEPHEN
IPC: C22C21/12
Filed: 1966-04-29
Abstract: 1,129,755. Making aluminium alloys. DOW CHEMICAL CO. April 29, 1966. No.19004/66. Headings C7A and C7D. Aluminium base alloys consisting of the balance being aluminium are made by hot working (e.g. by extrusion, casting, rolling or forging) of pellets of the alloy which pass through a 20 mesh U. S. A. Standard Sieve, heating the worked alloy to 900-1,100‹ F, quenching (e. g. in water) and ageing at 300-400‹ F for 5-20 hours. The initial pellets may be made by jet or disc atomizing.
Patent GB-718998-A (GB)
Title: Improvements in and relating to furnace plant
Filed: 1952-07-28
Abstract: 718,998. Boiler furnaces. WALTHER & CIE AKT.-GES. July 28, 1952 [July 30 1951], No. 19028/52. Addition to 672,287 and 695,727. Class 51 (1) In furnace plant according to the parent Specification for carrying out the method of burning solid fuel according to the first parent Specification, a drop-shaped baffle i is disposed in the upper furnace space f which has tangentially disposed air inlet nozzles h<SP>1</SP>-h<SP>6</SP> for hot air controlled by valves l<SP>1</SP>-l<SP>6</SP>. The baffle is so placed that its widest part lies at the lower edge of the upper furnace space. In a modification, Fig. 2, having a conically shaped upper furnace space f, the baffle i has a nut o inside it engaging a screwed rod n supported in the lower furnace space a by a structure m, so that on rotation of the baffle it may be raised or lowered. Specification 683,492 also is referred to.
Patent GB-750425-A (GB)
Title: Roll-changing device
Inventor: LANGEN MATHIAS
IPC: B21B31/10
Filed: 1953-07-09
Abstract: 750,425. Rolling. LOEWY ENGINEERING CO., Ltd. July 5, 1954 [July 9, 1953], No. 19030/53. Class 83 (4). A roll changing device comprises a carrier 20, Fig. 1, supporting the roll assembly 17 and movable sideways with respect to the mill stand under the action of a double-acting piston and cylinder elements 23, 24 attached at preselected points along the track. The carrier 20 is slidable on rails 21 and has a notch 27 engaged by a hook 26 on the piston rod 25. The cylinder 23 is also slidable on the rails 21 and locked in position by double-acting pawls 30 pivoted on its sides and engaging notches 33 at various positions along the track. Flexible pipes 38, 39 connect the double-acting cylinder 23 to a reversing valve 44 supplied with fluid from a variable delivery pump. In operation the cylinder 23 is engaged in the first notch 33 and the roll assembly is moved through the distance of the piston stroke. The valve 44 is then reversed so that the cylinder 23 moves forward while the roll assembly remains stationary until the cylinder 23 engages the next notch 33. The roll assembly is then moved through another piston stroke and the operation is repeated until the rolls have moved the required distance. The return of changed rolls into the stand is similarly carried out in the reverse direction, stops 45, 46 limiting the movement in each direction. The valve 44 may be reversed automatically at predetermined points along the track as by electric limit switches.
Patent GB-153383-A (GB)
Title: An improved pencil for shading or stippling artistic work, for retouching photographs and negatives for example
IPC: G03D15/00
Filed: 1919-08-02
Abstract: 153,383. Florey, L. T. Aug. 2, 1919. Electric and like pens.-An artist's stippling- pencil of the type in which the pencil is given an oscillatory motion transversely to its length, is arranged so that the pencil-holder 2, carrying the pencil 1, receives a succession of blows, at a part remote from the pencil point, from a hammer device. The holder fits with slight play in a tubular carrier 3 and is pivotally held therein by means of diametrically-opposite screws 5, located between the pencil point and the part struck by the hammer. The holder is resiliently held at one limit of oscillation by a spring 8 acting through a slot 7 in the carrier. The hammer, carried by a cranked arm 13, which is attached to the vibrating armature of an electro-magnet 12 mounted on the carrier 3, strikes the holder 2 through a slot 6 in the carrier. A spring 11 limits the return movement of the hammer.
Patent GB-1136748-A (GB)
Title: Lubricant compositions
IPC: C10N40/12
Filed: 1966-05-02
Abstract: 1,136,748. Esters. UNILEVER-EMERY N.V. 2 May, 1966 [30 April, 1965], No. 19162/66. Heading C2C. [Also in Division C5] Pentaerythritol tetravalerate is prepared by heating a mixture of pentaerythritol and valeric acid, molar ratio 1: 5, to 210 C. and removing the water of reaction as it formed by means of an azeotrope with xylene. Neopentyl glycol dipelargonate is similarly prepared from neopentyl glycol and pelargonic acid in molar ratio of 1: 2À2. Blends of the esters are used as lubricant base fluids (see Division C5).