baber/WOPTO huggingface dataset:
Patent GB-1107031-A (GB)
Title: Improvements in or relating to the production of materials suitable as abrasives
IPC: C01F7/38
Filed: 1964-03-10
Abstract: An abrasive composition comprising corundum is manufactured by firing bauxite ore and solid carbonaceous fuel, e.g. coke, in a kiln to a temperature of 1200-1600 DEG  C., the bauxite having added to it sodium chloride in the proportion 50 to 200 parts by wt. per 1500 parts of bauxite, to remove a proportionof the iron and silicon from the bauxite by volatilization as chlorides and introducing at an intermediate stage in the firing, a promoter substance which is a mixture of sodium chloride with absorbent carbon-containing material, e.g. charcoal or sawdust, and bentonite or other absorbent clay in the proportions 1-4 pts. by wt. NaCl, 1 1/2 -6 parts carbon-containing material and 4-16 pts. bentonite or other clay.  A low-grade bauxite containing 50-58% alumina may be used.  The kiln is preferably first fired at 1200 DEG  C. for 2-6 hrs., and then at a higher temperature not exceeding 1600 DEG  C. for 1-3 hrs. before adding the promoter, which may also contain a small proportion of dilute hydrochloric acid. The bauxite is preferably loaded into an upright kiln in layers, with intervening layers of sodium chloride and coke.ALSO:An artificial corundum abrasive is manufactured by firing bauxite ore and solid carbonaceous fuel, e.g. coke in a kiln to a temperature of 1200-1600 DEG  C., the bauxite having added to it sodium chloride in the proportion 50 to 200 parts by wt. per 1500 parts of bauxite, to remove a proportion of the iron and silicon from the bauxite by volatilization as chlorides and introducing at an intermediate stage in the firing, a promoter substance which is a mixture of sodium chloride with absorbent carbon-containing material, e.g. charcoal or sawdust, and bentonite or other absorbent clay in the proportions 1-4 pts. by wt. NaCl, 1 1/2 -6 pts. carbon-containing material and 4-16 pts. bentonite or other clay.  A low grade bauxite containing 50-58% alumina may be used. The kiln is preferably first fired at 1200 DEG  C. for 2-6 hrs., and then at a higher temperature not exceeding 1600 DEG  C. for 1-3 hrs. before adding the promoter, which may also contain a small proportion of dilute hydrochloric acid. The bauxite is preferably loaded into an upright kiln in layers, with intervening layers of sodium chloride and coke.
Patent GB-785378-A (GB)
Title: An apparatus for measuring the human foot and shoe lasts
IPC: A43D1/02
Filed: 1955-04-06
Abstract: 785,378. Foot-measuring apparatus. LEDOS, M. April 6. 1955 [July 26, 1954], No. 10105/55. Class 17(3) A foot or last measuring apparatus has means for measuring directly or determining the foot length, the width at a number of points, the height of the arch at a number of points and the angle formed between the line of the inside of the foot and a number of points on its outside edge. A base 3 has foot supporting plates 1 and 2 (not shown), with raised edges 12 against which the heel is placed and an edge 16 which with a plate 17 is engaged by the inside edge of the foot. A central rod 4 and an auxiliary rod driven thereby mounts cursers 8, 14, 32-35, 113 on screw threads the pitch of which maintain the cursers in the same position longitudinally relative to the edge 12. The curser 8 indicates the length of the foot while the curser 14 has a pivot 22 on which are mounted bars 23-26 connected by swivels 45-48 to cross members 27-30 of the cursers 32-35, which mount feelers 51-54 to engage the foot Connected to the bars 23-26 as by levers 101, 103 are pointers 102, 107- 109 which indicate the angle formed with the inside edge of the foot and enable the width of the foot at these points to be determined. Also pivoted at 22 are bars 55, 87 mounting swivels 78, 92 and maintained from the inside edge of the foot at 1/2 and 1/6 of the angle formed by the bar 23 by a pantograph pivoted at 70, 73 to the bar 23 and to the frame. The swivels 78, 92 mount arch height measuring means comprising a rod 81, Fig. 7 sliding in a tube 79 and connected to pointers 84, 94. The height or thickness of the foot is measured by scribing gauges 111, 112 mounted on cursers, 33, 113 the latter gauge being adjustable in two directions in the horizontal plane and having a plate to measure the location of the hallux valgus.
Patent GB-856153-A (GB)
Title: Towed aerial target
IPC: F41J9/10
Filed: 1959-03-24
Abstract: 856,153. Towed aerial targets. SOC. D'ETUDES ET DE CONSTRUCTIONS ELECTRIQUES, MECHANIQUES ET METALLURGIQUES. March 24, 1959 [March 25, 1958], No. 10134/59. Class 4. A towed aerial target comprises a longitu- 4inal frame member A of square or round section which supports a plurality of spaced transverse frames B upon which is mounted an unstressed skin comprising a plurality of sleeves. Stabilising planes E are mounted at the rear end and the nose comprises a solid core of cast iron or steel connected to frame A by shock absorbing means consisting of a cylindrical cavity formed in head C containing a viscous substance such as grease, co-operating a piston being mounted on member A, the head C and member A being secured together by brass or aluminium rivets which shear when the target strikes the ground upon release from its towing cable as will be described. A landing skid D is provided. A towing bridle F, which in operative position is located at F 1 , is pivotally mounted on frame A and is connected to the towing cable, not shown, by an explosive bolt. The rear end G of the target houses a braking parachute which is withdrawn by a pilot parachute when a rear closing panel is released. In operation, if it is desired to release the target in flight, the towing cable is released from the towing aircraft with the result that the target commences to fall nosedown with the cable and yoke swinging rearwardly. When the yoke reaches its rearmost position it becomes automatically locked, the explosive bolt is fired to release the cable and the rear closing panel is jettisoned to withdraw the pilot and subsequently the braking parachute. Upon impact with the ground the instruments contained in the target are protected by the nose shock-absorber.
Patent GB-1162432-A (GB)
Title: A method of production of Polymers by Photopolymerisation
Inventor: LIM DRAHOSLAV
IPC: C08F4/04
Filed: 1967-03-03
Abstract: 1,162,432. Photopolymerization process. CESKOSLOVENSKA AKADEMIE VED. 3 March, 1967 [8 March, 1966], No. 10204/67. Heading C3P. Ethylenically unsaturated monomers are photopolymerized in the presence, as free radical-forming initiator, of a coloured azo compound having an absorption maximum in the visible light region from 3800-5000A and corresponding to the formula R 1 N = N-R 2  where R 1  is an optionally substituted aromatic nucleus directly bonded to the indicated azo group, and R 2  is either (a) an aliphatic hydrocarbon residue bound to the azo group by a tertiary carbon atom, optionally substituted by one or more aryl, aralkyl, nitrile or carbalkoxy groups, or (b) a nitrile group directly linked to the azo group. (The term "aromatic nucleus " includes aromatic, heterocyclic nuclei). Examples illustrate the homopolymerization, in bulk, of methyl methacrylate, acrylonitrile, vinyl chloride, tetrafluoroethylene and styrene, and also the copolymerization of styrene and methyl methacrylate in two stages; in the first stage a prepolymer syrup is formed and, in the second, the syrup is polymerized in dispersion in aqueous polyvinyl alcohol to form a pearl copolymer.
Patent GB-222783-A (GB)
Title: Improvements in perambulators, bath chairs, invalid carriages or the like
IPC: B62B9/18
Filed: 1924-04-25
Abstract: 222,783. Fulford, W. H. April 25, 1924. Rod couplings.-In a perambulator, bath chair, or like hand-propelled vehicle, the members of the frame structure are connected together by a lug having a number of tubular parts to receive the members and an additional tubular portion which intersects each of said tubular parts and receives locking members to which pressure can be applied to grip the members. As shown, the lugs serve to connect stub axles 1 to longitudinal frame members 6, but they may be used generally to connect tubes or rods in perambulator &c. construction, at right-angles or at any required angle to each other or in parallel. The lug has tubular parts 7, 8 to receive the axle 1 and member 6 and an additional tubular portion 9 intersecting the parts 7, 8. Locking members 10, 15 located within the portion 9 have arcuate recesses 12, 16 which are caused to grip the axle 1 and member 6 by nuts 13, 18.
Patent GB-1074162-A (GB)
Title: Improvements in or relating to bottles made of synthetic thermoplastic material
Inventor: COOKSON HAROLD
IPC: B65D79/00
Filed: 1965-03-10
Abstract: 1,074,162. Bottles of thermoplastic material. METAL BOX CO. Ltd. Dec. 14, 1965 [March 10, 1965], No. 10237/65. Heading B8D. A bottle blow-moulded from a synthetic thermoplastic material has a body of uniform wall thickness with opposite end portions (31, 32), Fig. 1, of greater cross-sectional area than that of the intermediate part (33) of the body extending between them. After filling, any reduction of pressure in the headspan of the bottle causes the intermediate part (33) and, -to a lesser extent, the end portions (31, 32) -to change their shape, e.g. they may change from circular cross-section to oval cross-section. In so deforming the part (33) hinges on the end portions (31, 32) by means of fillets (36, 37) which may be concave, Fig. 7, or convex. Alternatively, the part (33) may be externally concave Figs. 8-13, or be formed of two frustoconical sections joined to the ends (31, 32) at the ends of greater diameter of the fillets. The part (33) may assume a triangular crosssectional area after deformation, Fig. 19A. One of the frusto-conical sections may be longer than the other, Figs. 20-21. The bottle neck may be wide enough to accommodate the ullage, Fig. 22; and buttress -sections (44), Figs. 23-25, may support the fillets (36, 37). The bottle may be moulded from polyethylene, polypropylene, or P.V.C.
Patent GB-736547-A (GB)
Title: Spindle couplings
Inventor: PARKES ERIC BERNARD
IPC: F16D7/02
Filed: 1953-04-15
Abstract: 736,547. Securing elements to shafts. LUCAS (INDUSTRIES), Ltd., J. April 13, 1954 [April 15, 1953], No. 10278/53. Class 80 (2). An element c, Fig. 3, such as the boss of a windscreen wiper arm is secured to a spindle d by means of a wedge f which is forced into a tapered groove in the element c by means of a screwed bush g. The wedge f may be of semicircular form as in Fig. 4 or in the form of a key as in Fig. 6. The sleeve part e may be completely circular and may have a radial flange h formed thereon to facilitate withdrawal of the wedge. In Fig. 6, the spindle d is secured to a cylindrical bush i which is secured in the boss c by means of a set-screw.
Patent GB-1358225-A (GB)
Title: Apparatus for replacing tubular lamps
IPC: H01J9/00
Filed: 1972-03-06
Abstract: 1358225 Gripping tools; handles G W VAN GERVEN 6 March 1972 [7 March 1971] 10333/72 Headings B4W and B4K An apparatus for replacing tubular lamps comprises a control stick or handle, Fig. 4, a clamping member, Fig. 1, adapted to be mounted on one end of the control stick, said clamping member including a pair of jaws 4 pivotable about a common axis and urged towards each other by springs 6, a driving shaft 5 extending coaxially with said pivotal axis of the jaws and connected by means of a right angle transmission to a coupling shaft 8, means 19 at the other end of the control stick for rotating the coupling and drive shafts 8, 5, at least one drive roller 13 mounted on the shaft 5, two guide roller shafts 12 with guide rollers 14 rotatably supported in respective jaws 4 and a plurality of elastomeric endless driving strips 15 trained around the driving roller and guide rollers; the arrangement being such that a tubular lamp 16, Fig. 3, may be gripped between the inner surfaces of the driving strips 15 and rotated for removal from its holder by manual rotation of the drive means 19, coupling shaft 8 and driving shaft 5. The control handle is sectional, the number of sections used being dependent upon the height at which the lamp is located, and includes hexagonal shaft and socket drive connections 24, 27. The upper end of the control stick may include a universal pivot connection 28 adapted to be secured in a selected position by means 37.
Patent GB-1381544-A (GB)
Title: Mine roof support
IPC: E21D23/03
Filed: 1972-03-06
Abstract: 1381544 Mine roof supports BANYASZATI KUTATO INTEZET VARPALOTAI SZENBANYAK and ORSZAGOS BANYAGEPGYARTO VALLALAT 6 March 1972 [5 March 1971] 10375/72 Heading E1P In an advancing mine roof support assembly for a longwall face and wherein each support is provided with a canopy A, a waste shield 13 and a breaking shield 1, the resulting gaps between shields of adjacent supports are each covered by L-shaped plates 5. Each plate 5 is urged by spring means into contact with an abutment surface 8 on an adjacent support and is aligned relative to its associated shield by hydraulic alignment cylinders for details of which and mode of operation the Specification and Figs. 3 and 4, (not shown), should also be referred to.
Patent GB-957716-A (GB)
Title: Mineral-mining machine
Inventor: DUNCAN ANGUS WELLESLEY
IPC: E21D9/10
Filed: 1960-05-24
Abstract: 957,716. Mineral-mining machines. MINING ENGINEERING CO. Ltd. May 2, 1961 [March 24, 1960], No. 10419/60. Heading E1F. A machine for ripping out the head of an underground roadway consists of a selfadvancing chassis 14 on which a longitudinally extending hollow shaft 15b is rotatably mounted, the shaft having at the leading end an arm 15a extending at right angles to the shaft for supporting a cutter drum that is rotated about the axis of the drum by a shaft and bevel gear drive extending through the arm 15a and shaft 15b. At the leading end of the shaft is positioned a driven boring tool 32 which clears a space for the shaft during the advance of the machine after the cutter drum has cut into the head on being swung in an arc from one side to the other of the machine as the shaft is rotated by a ram mounted on the chassis actuating a ratchet drive associated with the shaft.
Patent GB-672839-A (GB)
Title: Improvements relating to machines for automatically wrapping small quantities of powdered material in paper or the like
IPC: B65B11/54
Filed: 1949-10-07
Abstract: 672,839. Powder wrapping machines. CROLLIE, J. W., and SPRINGETT, W. C. May 1, 1950 [Oct. 7, 1949], No. 10433/50. Divided out of 672,808. Drawings to Specification. Class 94(i) [Also in Group VIII] The subject-matter of this Specification is identical with matter described in Specification 672,808, but the claims differ. Specifications 672,840, 672,841 and 672,842 also are referred to.
Patent GB-1387056-A (GB)
Title: Telescopic joint for conduits containing fluid under pressure
IPC: F16L27/12
Filed: 1972-03-07
Abstract: 1387056 Pipe couplings INDUSTRIE PIRELLI SpA 7 March 1972 [13 March 1971] 10449/72 Heading F2G A pipe joint includes a half joint, in which a tubular diaphragm 7 is enclosed between telescoping members 5 and 6. The diaphragm, which may be made of textile reinforced rubber, has metal stiffening rings (15, 21) at the ends so that it may be clamped to the ends of members 5 and 6. In a compressed air coupling between railway vehicles, hoses 3, 4 are connected by gaskets 3<1>, 4<1> to members 5 of the half-joints to allow slight angular displacements of the halfjoints. The air pressure exerted on annular faces 13 presses gaskets 10 into fluid-tight contact. Diaphragm-carrying members 20 are not secured to members 6, but can move inwardly under impact to shield the gaskets 10 from excessive strains.
Patent GB-120195-A (GB)
Title: Manufacture of a New Cleansing Material.
Inventor: PAULIN GEORGES AUGUSTE
IPC: C11D7/46
Filed: 1918-06-26
Abstract: 120,195. Paulin, G. A. Oct. 23, 1917, [Convention date]. Cleansing-compositions.-A cleansing-composition is prepared by mixing powdered casein with a saturated solution of sodium carbonate and mix. ing the product with a resin soap prepared by saponifying commercial resin with caustic soda. The composition may be scented with oil of thyme, oil of lemon thyme, essence of mirbane, &c.
Patent GB-967803-A (GB)
Title: Bottle filling and capping apparatus
Inventor: UNTHANK ALEXANDER
IPC: B67C7/00
Filed: 1962-03-20
Abstract: 967,803. Filling and capping machines. IN-CRATE BOTTLING CO. PROPRIETARY Ltd. March 14, 1963 [March 20, 1962], No. 10547/62. Heading B8T. In a bottle filling and capping machine, which forms an extension of an " in-crate " bottle washing apparatus, crates of bottles are fed by a conveyer 1 to a filling tank 2 and are afterwards fed by a conveyer 4 to a capping machine 3. Filling and capping heads 6 and 16 correspond in position to the bottles in the crates. When the bottles have been filled and capped, the crates are fed away by a conveyer 5. When beneath the filling tank and capping machine each crate is indexed vertically by platforms 7 and 12 respectively. The vertical movement is effected through cams 9 and 14 and gears 11 and 15 by a driving shaft 10. Specification 918,453 is referred to.
Patent GB-978814-A (GB)
Title: Electrical contact
IPC: H01H1/60
Filed: 1963-03-18
Abstract: 978,814. Switch contacts. BROOKHIRST IGRANIC Ltd. March 18, 1963 [June 13, 1962], No. 10570/63. Heading H2B. An electric contact comprises a member 12 made, for example, from fine silver, with a projection or nib 12a, deformed therefrom by punching, to penetrate films &c. built up on the mating contact. A bridging contact 10 may be made, with two such contacts 12, 13, welded or brazed to either end, the bridge member 11 being made of copper, for example. The contacts may be used in any type of switch, but in particular, a retractive switch, Fig. 4 (not shown), is disclosed, or they may be mounted on a spring member, Fig. 5 (not shown).
Patent GB-1383551-A (GB)
Title: Electrical discharge machining apparatus having a short circuit protection system
IPC: B23H1/02
Filed: 1972-03-07
Abstract: 1383551 Electro-erosion COLT INDUSTRIES OPERATING CORP 7 March 1972 [10 March 1971] 10576/72 Heading B3V [Also in Divisions H2 and H3]  An electrical discharge machining apparatus, Fig. 1, has a plurality of working gaps 14, 16 and 26, 28, output switches 12, 24 individually associated with one of the gaps for connecting a respective power supply 10, 22 to the gap for supplying machining pulses, a pulse generator 32 common to all the gaps for providing triggering pulses to respective drive stages 30, 33 for operating the switches, and a plurality of cut-off stages 58, 60 each individually associated with one of the gaps and operable to render the respective drive stage effective to inhibit the application of triggering pulses to the respective switch on the occurrence of a short circuit at the respective working gap without affecting the operation of the common pulse generator 32. Fig. 2 illustrates the transistor drive output and cut-off stages associated with one working gap. The drive stages includes transistors 80, 82 acting as a bi-stable device controlled by the multivibrator and controlling through further transistors 84, 86 the output stage 12 which has parallel transistors 62, 62<SP>1</SP> switching the power to the working gap. The cut off stage is connected to respond to the fall in voltage across the working gap 14, 16 and receives a keying signal from the drive stage though a resistor 132 and a reference signal from a D.C. supply 166. When gap voltage drops, a transistor 153 is turned on to cause a transistor 176 to turn on, a transistor 184 to turn off, and transistors 186 and 212 to turn on. The conduction of transistor 212 switches the bi-stable 80, 82 to the state in which all the following stages are turned off. Electronic tubes or controlled rectifiers may be used as the output switches.
Patent GB-783720-A (GB)
Title: Pelleted carbonaceous material
IPC: C04B35/532
Filed: 1955-04-13
Abstract: A pelleted carbonaceous material for use in the manufacture of baked carbonaceous articles is produced by mixing and heating sized particles of carbonaceous material with a coal tar, coal tar distillate, or coal tar pitch binding agent to a temperature sufficient to soften the binder and blend the mixture, extruding the hot mixture into rods and cutting the rods into pellets, the extruding and cutting being performed at a temperature sufficient to de-aerate, densify, and form a non-adherent skin about the periphery of, each pellet.  Coke particles, finely-divided coke, and crushed 30 medium coal tar pitch are mixed and simultaneously heated at above 130 DEG  C., say 150 DEG  C., until thoroughly blended and the hot mix is extruded through a pellet mill under 10,000 lbs./sq. inch to form 3/16 inch diameter X 3/16 inch long pellets. The pellets at 140-150 DEG  C. can be pressed into blocks with a low moulding pressure of 3000 lbs./sq. inch, and, after cooling, the moulded blocks can be rapidly baked at 25 DEG  C. rise per hour, without distortion, to form shaped products of increased density and reduced permeability.
Patent GB-748260-A (GB)
Title: Improvements in metal bars for supporting the roofs of underground workings
IPC: E21D17/01
Filed: 1953-04-21
Abstract: 748,260. Mine-roof supports. GUTEHOFFNUNGSHUTTE STERKRADE AKT.-GES., [formerly GUTEHOFFNUNGSHUTTE OBERHAUSEN AKT.-GES.]. April 21, 1953 [April 26, 1952], No. 10610/55. Divided out of 748,226. Class 20(2) A metal I-sectioned bar for supporting mine roofs is provided with uniformly spaced recesses 6 in the underside of the lower flange 5 below the web 1 for engagement with a pair of projections on the prop head, the depth of the recesses being less than the thickness of the flange 5. The recesses 6 may be pressed in. The web 1 is provided on both sides with oblique strengthening ribs 3.
Patent GB-458648-A (GB)
Title: Improvements in or relating to needle-changing mechanism for talking-machines
IPC: G11B3/46
Filed: 1936-04-14
Abstract: 458,648. Gramophones &c. BOSCH AKT.-GES., R., 4, Militõrstrasse, Stuttgart, Germany. April 14, 1936, No. 10653. Convention date, April 11, 1935. [Class 40 (ii)] [See also Group XVII] In a needle - changing device for gramophones or the like, wherein the needles are conveyed successively by a belt to a position where they are coaxial with a needle - receiving socket in the sound-box or pickup, the belt passes through a fixed guide provided with springy recesses in which each needle is arrested in turn in a position where the needle socket can be placed over the needle shank. The invention is shown in use with a pick-up 13 in which a needle socket 15 is connected to the vibratory armature (not shown), and a needle 3 is adapted to be clamped in the socket by a spring-held jaw 16 when a lever 18 is depressed. The needle container consists of a box 1 in which is a spirally wound belt 2 made of a strip of paper having separate layers between which the needles are inserted at intervals. The box 1 is placed in an outer casing 4, removably mounted on a ring 5 screwed to the motor-board of the machine. The needle-carrying belt 2 passes through registering openings in the parts 1, 4, and is guided between spring arms 9, 10 fixed to the casing 4. The arms are formed with recesses 9<a>, 10<a> which grip the belt at each place in turn where a needle is located, when the belt is drawn out of the container. The upper edge of the belt engages with one or more hooks 9b on the spring arms, and its lower edge rests on a support 11. When shouldered needles are used, their points may pass into a slot in the support 11. To insert a needle in the socket 15, the pick-up arm is swung outwardly against a stop, and by then lowering the pick-up, a needle held in the recesses 9<a>, 10<a> is received by the socket 15. On depression of the lever 18, the needle is clamped, and is withdrawn from the belt when the pick-up is again raised, the belt being retained by the hook 9<a>. Instead of being drawn out by hand, the belt may be fed automatically from the container by a device operated by movement of the pick-up arm.