baber/WOPTO huggingface dataset:
Patent GB-662453-A (GB)
Title: Improvements in or relating to electric arc-welding
IPC: B23K9/067
Filed: 1949-02-04
Abstract: An electrically conductive flux comprises 54 per cent iron powder; 6 per cent ferro-manganese (80 per cent Mn), ferro-silicon (45 per cent Si), or ferro-titanium (25 per cent Ti); 13 per cent calcium carbonate; 13 per cent calcium fluoride and 14 per cent bentonite. An electrically non-conductive flux comprises 14 per cent ferro-manganese (80 per cent Mn), ferro-silicon (45 per cent Si), or ferro-titanium (25 per cent Ti); 31 per cent calcium carbonate; 31 per cent calcium fluoride and 24 per cent bentonite.
Patent GB-247731-A (GB)
Title: An improved shuttle picking stick carrier for looms
IPC: D03D49/38
Filed: 1925-02-04
Abstract: 247,731. Tomkinson, G., and Young, H. Feb. 4, 1925. Picking-sticks. - A carrier for a picking stick e comprises an upper part b pivoted at c to a lower part a, which has an aperture i to fit the pin on which it rocks. The part b has a shoe d to receive the stick e, which is secured thereto by bolts f and nuts g. The two parts a, b are connected by a spring n and bolts m. A leaf spring o on the lower part a bears against the back of the usual strap loop &c. h on the upper part b. When the stick strikes the buffer, it can rebound by stressing the springs n, o.
Patent GB-870459-A (GB)
Title: Process for the extraction of pyrethrins from pyrethrum flowers
IPC: A01N65/12
Filed: 1958-01-30
Abstract: A method for recovering biologically-active pyrethrin substances for use as insecticides by extraction from fresh, undried or partially dehydrated pyrethrum flowers, in which the fresh flowers, which may be first coarsely divided, are brought into contact with a mixed extraction solvent preferably at p  temperatures below 60 DEG  C. consisting of a minor portion of a water miscible solvent, preferably acetone or dioxane and a major portion of a water-immiscible solvent preferably petroleum ether, hexane, heptane, solvent naptha or kerosene, preferably in the proportions of 5 to 35% by volume of the former to 95 to 65% of the latter, for a time sufficient to extract the biologically-active pyrethrin substances while extracting substantially none of the mixture from the flowers, separating the solvent from the exhausted flowers and evaporating the mixed solvent, preferably below 60 DEG  C. to recover the biologically active pyrethin substances.  Specified solvent mixture consists of 15% acetone and 85% petroleum ether.  Specifications 559,735 and 596,187 are referred to.
Patent GB-801711-A (GB)
Title: Improvements in or relating to electrical heating devices
IPC: H05B3/58
Filed: 1954-02-03
Abstract: 801,711. Electrically heated fabrics. ISOPAD, Ltd., and REIK, H. May 3, 1955 [Feb. 3, 1954], No. 3218/54. Class 39(3) A flat flexible elongated electric heater for wrapping round pipes, containers or other articles, comprises a single length of resistance wire 1 with a coating of glass or asbestos lap or braid doubled back on itself once only to a U shape and woven into or stitched to a strip of glass fabric or asbestos yarn, one or both sides of the strip being folded over to sandwich the wire between layers of the glass or asbestos fabric. The ends of the wire are connected at one end of the heater directly or through conductors to a plug. When the insulated wire is interwoven with a central section of the strip, the two side flaps of the strip are bent over to enclose the wire and the three portions of the strip are stitched together at their edges; or the wire may be interwoven adjacent one edge of the strip, and the remaining two-thirds of the width of the strip may be turned twice over the wire to enclose it. When the wire is stitched along one half of the width of the strip, the other half may be folded over and the edges of the strip stitched together. The element comprises a straight resistance wire or a wire coiled on an insulating core covered by a layer of glass or asbestos braid covered by a waterproof extruded sleeve of silicone rubber, neoprene, or polytetrafluorethylene which may have an extruded cover of nylon or Terylene (Registered Trade Mark). Conductors 5 attached to the ends of the heating wire may be stranded nickel waterproofed by a substance which will mould with the waterproofing material on the heating element. A layer 8 of conducting foil or fine wire mesh may be sewn on the outside of the heater and connected by a conductor 10 to a third prong of the plug to serve as an earth, and this earthing layer may be covered by a further turned-over layer of the glass or asbestos fabric 2. Alternatively earthing wires are woven with an outer portion of the base fabric 2. When an earthed layer is employed, a fuse may be incorporated which on blowing disconnects the heater from the mains. Lapped or braided earthing wires are alternatively wound round the heating element. Several sections of glass or asbestos fabric may be joined end to end with a single heating element. The heater may be wrapped round a pipe or vessel to be heated.
Patent GB-538235-A (GB)
Title: Improved pressure reducing valve or device for use with fluid pressure systems or apparatus
IPC: G05D16/06
Filed: 1940-02-22
Abstract: 538,235. Valves. DUNLOP RUBBER CO., Ltd., and TREVASKIS, H. Feb. 22, 1940, No. 3353. [Class 135] A bellows or diaphragm actuated reducing valve has the valve member 9 slidably arranged in a bore 1a, joining the inlet and outlet connections 2, 3. The front and rear faces of the member are shaped to provide smooth curved surfaces and flats are formed on its sides to provide fluid passages. The front face is recessed to house a facing washer 28 adapted to co-operate with a knife-edge seat formed by turning a groove 30 in the end of the inlet connection. The valve is actuated by a bellows 21 housed in a chamber formed by a cylindrical casing member 4 clamped between packing rings 6 housed in grooves in the main casing and in a plate 4<SP>1</SP> supported by a cover member 5 respectively. One end of the bellows is secured to the plate 4<SP>1</SP> while the other end is fixed to a flanged member 10 slidably mounted on a boss 7 on the main casing. A spindle 11 secured to the member 10 has an upstanding part 22 slotted to receive a link 23 connected to a bell crank lever 24 itself linked to the valve member. A hollow depending part of the spindle 11 is slidably mounted on a flanged pin 14 supported by an adjusting screw 15. Loading springs 18, 19 are arranged between the member 10 and an abutment plate 17 resting on the flange of the pin 14. A spring-loaded relief valve may be fitted.
Patent GB-1518253-A (GB)
Title: Ceramic material of low thermal expansion coefficient and method of manufacturing the same
IPC: H01L23/15
Filed: 1977-01-27
Abstract: 1518253 Zircon ceramics NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP and NIPPON TSUSHIN KOGYO KK 27 Jan 1977 [4 Feb 1976] 03364/77 Heading C1J A process for producing ceramics to be used in semiconductor devices comprises adding to zircon (ZrSiO 4 ) 5-30 weight per cent of a calcination product of kaolin, ball clay or the like (Al 2 O 3 .2 SiO 2 ) and further adding thereto an additive selected from Group I or from each of Groups I and II (or a precursor thereof) (percentages by weight):  moulding the mixture and firing at 1200-1450‹C.
Patent GB-907025-A (GB)
Title: A process for obtaining hecogenin
IPC: A61K36/896
Filed: 1960-02-01
Abstract: Hecogenin is prepared by separating the sediment from the liquid following fermentation of the juice of Agave sisalana, drying the sediment to a solid content of 90-100%, simultaneously or subsequently heating the sediment to temperatures of from 80 to 150 DEG C., preferably at 110 to 120 DEG C., for 8 to 15 hours, and thereafter converting the sediment in known manner into hecogenin. The above process may be modified in that following the initial separation of the sediment from the liquid, the sediment is first of all concentrated to a solid content of 12 to 20% and then is dried to a solid content of 95 to 100% while heating at 80 to 150 DEG C. (the concentration to a solid content of 12 to 20% may be carried out by centrifuging and/or bed-drying or trickling drying).
Patent GB-1484721-A (GB)
Title: Hydraulically operated prime mover
IPC: F03B17/02
Filed: 1974-01-25
Abstract: 1484721 Utilizing tidal energy; engine employing a buoyant float A U REID 24 Jan 1975 [25 Jan 1974] 03585/74 Heading FIS An hydraulically operated engine comprises a liquid reservoir having a relatively large surface area at an upper level and connected via a lock 3 to a waste liquid area at a lower level, the lock containing a relatively closely fitting buoyant float 4 whose draught is not less than the difference in maximum and minimum liquid levels in the lock and which extends above the level at which it floats by at least the same amount, an energy transfer device, means 2, 5 to control the raising and the lowering of the liquid in the lock between the two levels and a mechanism if necessary for holding the float in the upper buoyant position while the peripheral liquid in the space between the float and the lock is discharged so inducing potential energy in the float which is extracted by the device when the float is subsequently released and descends to the new buoyant position while further liquid is discharged from the lock. With the float if necessary held in the lower position, the introduction of peripheral water during flooding of the lock induces an upward thrust in the float 4 and when the float is released it exerts a torque on the toothed quadrant 21 which is opposed by a countertorque exerted by the weight 29, the weight being transferable between the lower ends of cables 25, 26. The float rises up causing the arm 23 to rotate to the vertical position while lifting the weight through the distance D. The countertorque diminishes to zero as the arm 23 reaches the vertical position. The weight may be connected to supply power to an external machine or the weight may be replaced by the mechanical load imposed by an external machine. In a modification (not shown) the float is arranged to operate a large diameter pump, the toothed quadrant being replaced by a toothed wheel which drives the pump through a connecting rod arrangement. The engine may be used to extract tidal energy with the aid of a barrage constructed across an estuary.
Patent GB-1587384-A (GB)
Title: After-dyeing or printing-treatment process for mixed textile substrates
IPC: D06P3/82
Filed: 1978-01-30
Abstract: The present invention relates to an after-dyeing treatment process for synthetic/cellulosic fibre mixed substrates which have been dyed with at least one disperse and at least one reactive dye in which after fixation, the dyed or printed substrate is reductively treated at a neutral to alkaline pH with an aqueous solution containing reducing agent, whereby non-bound disperse dyestuff is decomposed such that it does not re-build up on the substrate whilst the fixed reactive dyestuff remains substantially unaffected.
Patent GB-547240-A (GB)
Title: Cone clutch
IPC: F16D13/66
Filed: 1941-03-17
Abstract: 547,240. Cone friction clutches. LE TOURNEAU, Inc., R. G. March 17, 1941, No. 3660. Convention date, March 18, 1940. [Class 80 (-ii)] One of the elements of a cone friction clutch has a continuous helical oil collecting groove 6 cut in and extending about one working face thereof, oil carry-off grooves 7 extending from the bottom of the groove to the interior of the clutch. As shown, the groove 6 is cut in the inner member 2 of the clutch and is of fine pitch. The groove advances in the sense of rotation of the driving element of the clutch.
Patent GB-794536-A (GB)
Title: Improvements in or relating to dust-dispensing machines
IPC: E21F5/10
Filed: 1956-02-06
Abstract: 794,536. Dust distribution for mines. OLDHAM & SON, Ltd., and GOODWIN, E. Jan. 16. 1957 [Feb. 6, 1956], No. 3680/56. Class 6(1). A machine for distributing dust in mines comprises a bin 1 provided with a movable dispensing pipe 7 and an air inlet pipe 11 for connection to a blower device and flails 14 mounted on shafts 12, 16. The bin is mounted on a chassis provided with track wheels to allow the machine to be hauled along road rails. The shafts 12 are mounted below the shafts 16 and both sets of shafts are driven by a chain 19 and sprockets 18, the chain 19 being connected to a sprocket rotatable by a gear box operated from the track wheels. The flails comprises lengths of chain attached to the shafts 12, 16. The bin is filled up to the level of the top shafts 16 and the flails on the top shafts 16 beat against the dust so that air blown into the bin passes the dust to be projected through the pipe 7.
Patent GB-764557-A (GB)
Title: Improvements in or relating to loose-leaf binder mechanisms
IPC: B42F13/26
Filed: 1955-02-08
Abstract: 764,557. Loose leaf binders. KRAUT, E. Feb. 8, 1955 [Feb. 10, 1954], No. 3716/55. Class 146(1). A loose leaf binder mechanism comprises half rings 11 secured to toggle plates 10 which abut each other along their inner edges 10a and are resiliently urged together by a cover plate 12 which limits the angular movement of the plates, and at least one end, the toggle plates 10 are provided with bearing sleeves or eyes 13 or 15, to receive two mutually inclined arms 14a or 16a of an operating lever 14 or 16 which turns about an axis transverse to the toggle plates 10 to move the plates to open or close the rings 11. As shown in Figs. 1 and 4, the operating lever 14 is loop-shaped with the inclined arms 14a freely movable in the eyes 13 which may be oval-shaped. As shown in Fig. 5, the lever 16 is T-shaped and the inclined arms 16a fit freely, but with less play than in the other construction, in eyes 15 which are at a substantial angle to the toggle plates 10. The eyes 13, 15 may be separate and welded or soldered to the toggle plates 10.
Patent GB-566010-A (GB)
Title: Improvements in dye-intermediates
IPC: C07D277/84
Filed: 1943-03-09
Abstract: Thioketones of the formula <FORM:0566010/IV/1> where D represents a phenylene or naphthylene group, Q represents sulphur or selenium and R and R1 each represents an organic radical, and one end of the organic radical R may be attached to the D group, are prepared by treating the corresponding ketones with phosphorus pentasulphide.  R may be an alkyl or aryl group, such as methyl, ethyl, isoamyl b -ethoxyethyl, benzyl, allyl, or phenyl, and R1 may be the same or a naphthyl or furyl group. The reaction may be carried out in pyridine. Examples give the preparation of 5-chloro-3-ethyl - 2 - thiopropionylmethylenebenzselenazoline, from 5-chloro-3-ethyl-2-propionylmethylene benzselenazoline, 1-ethyl-2-thiobenzoylmethylene-b -naphthathiazoline from 2-benzoylmethylene - 1 - ethyl - b  - naphthathiazoline, and 3 - ethyl - 2 - thioacetylmethylenebenzthiazoline from 2-acetylmethylene-3-ethylbenzthiazoline.  1 -Ethyl-2-thioacetylmethylene-b -naphthathiazoline can be prepared from 2-acetylmethylene-1 - ethyl - b  - naphthathiazoline, 3 - ethyl - 2 - thio - acetylmethylene - a  - naphthathiazoline from 2-acetylmethylene-3-ethyl-a -naphthathiazoline, 3-phenyl-2-thioacetylmethylene-benzthiazoline from 2-acetylmethylene-3-phenylbenzthiazoline, and 2-thioacetylmethylene-3 : 4-trimethylenebenzthiazoline from 2 - acetylmethylene - 3 : 4 - trimethylenebenzthiazoline.  2 - Acetylmethylene - 3 - phenylbenzthiazoline is prepared by treating 2-methylbenzthiazole pheniodide with acetyl chloride.  2 - Acetylmethylene - 3 : 4 - trimethylenebenz - thiazoline is prepared by treating 2-methyl-3 : 4-trimethylene-benzthiazolium iodide with acetyl chloride. Specifications 466,269, 546,705 and 551,331 are referred to.
Patent GB-512662-A (GB)
Title: Improvements in or relating to the balancing of reciprocating machines
IPC: F16F15/26
Filed: 1938-02-07
Abstract: 512,662. Balancing reciprocating engines. SARAZIN, R. R. R. Feb. 7; 1938, No. 3853. Convention date, Sept. 24, 1937. [Class 122 (iii)] In devices for balancing reciprocating engines having radial cylinders in one or more banks and at least one master connecting-rod having a head to which the heads of auxiliary'connecting- rods are pivoted, a mass 3 is attached to a pinion 4 in gear with a wheel 7 of equal diameter fixed to a casing. The pinion is mounted on a spindle 5 carried by a crank 6 and adjacent a crank pin 2 so that one rotation of the shaft produces one rotation of the mass around its spindle 5. The mass is arranged so that when the pin is at top dead centre the mass is farthest from the axis of the shaft. The mass may have the form shown in Fig. 3 and be carried by two rotating pins 5, eccentrically secured to wheels 4, .or. two rotating masses 3<1>, Fig. 4, may be pivoted as shown to a crank web, the axes of the masses being inclined at 135 degrees to the line joining their pivots A<1> to the axis O of the shaft 1 when the pin 2 is at top dead centre. The axes A<1> may be above or below the axis O, in which case the angle of inclination referred to may be changed.
Patent GB-414152-A (GB)
Title: Improvements in closures for collapsible tubes and other containers
IPC: B65D47/20
Filed: 1933-02-08
Abstract: 414,152. Closures for collapsable tubes &c. AMERICAN TUBE & CAP CORPORATION, 15, Exchange Place, Jersey City, New Jersey, U.S.A. Feb. 8, 1933, No. 3875. Convention date, Feb. 8, 1932. [Class 125 (iii).] In a closure for a collapsable tube &c. of the type described in Specification 239,460, [Class 125 (iii)], the cap is constrained to move in a guided path by means of a guide surface on the head of the tube &c. As shown, the guide surface consists of a cylindrical portion 17 on which a cylindrical portion 24 of the cap slides. The cap is shown in its outermost, discharge position, in which and in all other positions it is impossible for material from the container to come into contact with the annular snap spring 16. Reference has been directed by the Comptroller to Specification 394,613.
Patent GB-573753-A (GB)
Title: Improved apparatus for clearing land mines or minefields
IPC: F41H11/16
Filed: 1942-03-24
Abstract: 573,753. Clearing land mines; cutting wire; excavating earth &c. DU TOIT, A. S. J. March 24, 1942, No. 3923. [Classes 9 (ii), 68 (i) and 119] A frame b attached to the front of an armoured vehicle a carries a rotary member e with arms g, g<2> to which are attached by links i and bars k a series of chains l or like flexible members which beat the ground surface to explode land mines. The member e is driven through worm gear r' and shaft r from a motor q on the vehicle a and the frame b can be pivotally raised and lowered by a hydraulic jack s. Cross-bars h carried by arms g<1> on the rotor e may be used for breaking down and removing the earth forming tank traps, and other arms may carry wire-cutters t reciprocated transversely by links operated by an eccentric on the rotor e. The end flanges f of the rotor e carry cams u for operating wire-cutters u<1> arranged at the front end of the frame b.
Patent GB-850683-A (GB)
Title: An improved gland for armoured electric cable
IPC: H02G3/06
Filed: 1956-02-09
Abstract: 850,683. Mechanical couplings for cable armouring. JOHNSON & PHILLIPS Ltd., and KITNEY, S. J. Jan. 16, 1957 [Feb. 9, 1956], No. 4072/56. Class 38(1) The armouring 11 of a cable 10 is gripped between a solid sleeve 3 and a split sleeve 4 tightened by screwing a housing part 2 into a part 1. A waterproof sleeve 9 is provided round part of the cable and of part 2, and a threaded spigot 5 may be screwed into a termination box.
Patent GB-1100401-A (GB)
Title: Improvements in mixing devices for plastic materials
IPC: B29C48/47
Filed: 1965-01-29
Abstract: 1,100,401. Compression mixers. BLACK CLAWSON CO. 29 Jan., 1965 [31 Jan., 1964], No. 4136/65. Heading B1C. [Also in Division B5] Apparatus for mixing and shearing plastics material has an inlet 16 and outlet 32, and a stator and rotor 25, 26 having cooperating surfaces formed with concentric interfitting rings whereby a tortuous passage is provided between the inlet and outlet. The clearance between the rotor and stator may be adjusted by rotating the bearing housing 46 in the screw thread 45. The body of the apparatus is heated by induction heaters 72, and the excess heat produced in working the material removed by circulation of coolant through passages 80, 86. The rotor speed is controllable.
Patent GB-630901-A (GB)
Title: Apparatus for moving a ruler, triangle, curve or the like by successive predetermined displacements
IPC: B43L13/08
Filed: 1947-02-13
Abstract: 630,901. Hatching devices. DOORNE, H. VAN, and SANDERS, W. G. Feb. 13, 1947, No. 4159. Convention date, Feb. 13, 1946. [Class 97 (iii)] A hatching mechanism mounted in the knob 3, Fig. 1, of a drawing instrument 30 comprises at least one foot 16 per. pendicularly movable with respect to the drawing surface and to a slide comprising plates 9, 10 and 13, the slide carrying a fulcrum 7 for an L-shaped lever 6, one arm of which co-operates by means of a stud on the pin 14 with the foot 16 and the other arm of which can be operated against the spring 20 by pressure on a part 4 of the wall of the knob. The part 4 is attached to a rod 5 having a stud engaging the forked end of the lever 6 and the lever 6 engages a ball-ended rod 18 which is displaceable in a sleeve 19 against the action of the spring 20 whose tension may be adjusted by a screw 22. A ring 24, Fig. 2, co-planar with the plate 9 may be rotated by lever 26 inside a guide-ring 25 and is provided with a gradually curved inner portion 28 against which the pointed end 27 of the plate 9 abuts in its released position. Pressure on the member 4 moves the lever 6 against the spring 20 and the foot is thereby depressed until it engages the drawing surface. Thereafter the knob and therewith the drawing instrument move relatively to the lever until the slide 10 abuts against the edge of the guide-plate 12. On releasing the pressure on member 4 the lever returns under the action of the spring, thus raising the foot and returning the slide until its pointed end 27 abuts the portion 28 of the ring 24. By adjusting the position of the ring 24 the amount of travel of the drawing instrument can be regulated. In a modification plate 10 is omitted and plates 9 and 13 are held in spaced relation under spring tension by a block through which the pin for the foot passes and in a further modification the lever 6 is restored to its normal position by the contraction of a spring.
Patent GB-819806-A (GB)
Title: Heat exchanger
IPC: H05K7/20
Filed: 1956-02-10
Abstract: 819,806. Heat exchangers. MARSTON EXCELSIOR Ltd., and BERGWERK, W. May 10, 1957 [Feb. 10, 1956], No. 4197/56. Class 64(3) A heat exchanger comprises two or more matrix blocks each consisting of an assembly of plates separated by spacing strips such that fluid passages are formed between adjacent plates, the fluid flow directions in adjacent passages being transverse to one another and the sides of the fluid passages being bounded by the spacing strips at least one of which extends beyond the one matrix block, the extension constituting the side wall of a passage in an adjacent block. In Fig. 3 for example two sets of fluid passages are formed in each matrix block and the spacing strips 10 bounding the passages of one set in matrix block 5 extend beyond that matrix and form also the spacing strips for the passages of one set in matrix block 6. Similarly the spacing strip 9 in matrix block 6 are extended as shown to form spacing strips in matrix block 5. Secondary heating surfaces 13 are provided in the matrix block passages. A, heat exchanger is described in which a number of matrix blocks are grouped at the end of a pressurized container in which electrical equipment is housed. Warm air from the container is circulated by a blower through one set of passages of the matrix block group, and cooling air is circulated through the other set of passages.
Patent GB-1594563-A (GB)
Title: Process for isolating aromatic dinitro compounds
IPC: C07C201/00
Filed: 1978-02-02
Abstract: A process has been developed for isolating aromatic dinitro compounds by using nitric acid in specified concentrations in different portions of a rectifying column and separating off the mixture of aromatic dinitro compounds from the sump of the rectifying column.