baber/WOPTO huggingface dataset:
Patent GB-784934-A (GB)
Title: Improvements in or relating to methods of and apparatus for sorting or distinguishing articles or materials
Inventor: EDMONDS DE LARUE EVERARD
IPC: G01N21/21
Filed: 1953-02-23
Abstract: 784,934. Photo-electric sorting arrangements. COAL INDUSTRY (PATENTS), Ltd. Feb. 18, 1954 [Feb. 23, 1953], No. 4985/53. Class 40 (3). " Bright " coal is sorted from hard coal by utilizing their different abilities to polarize light. As shown, lumps of bright coal together with lumps of hard coal from which they are to be separated are carried by a conveyer 10 past an aperture 17 on to which light is directed from a source 13 and reflected via a window 21, analyser 14 and mirror 22 on to a photo-electric cell 15. The analyser consists of a disc of " Polaroid " (Registered Trade Mark) continuously rotated by a motor 16 so that the output of the photoelectric cell is a voltage alternating at the frequency of disc rotation and of amplitude dependent on the nature of the surface of the objects to be sorted. The reflectivity of " bright " and hard coal is the same, but the proportion of the reflected light which is polarized differs considerably, hence the photo-cell generates a signal the frequency of which depends on the speed of rotation of the disc and the amplitude on the proportion of the light polarized. This output is amplified at 25 and operates a deflector 28 so that the lumps of bright coal are deflected to one side of the conveyer and the hard coal to the other. In an alternative arrangement the reflected light is divided into two parts. One passes through an analyser effective in one plane to a photo-electric cell and the other through a second analyser effective in a plane at right angles to the first, the difference in the two signals being employed to effect the sorting operation. Specification 438,798, [Group XX], is referred to.
Patent GB-139470-A (GB)
Title: Improvements in or relating to the removal of iron from solutions of aluminium nitrate sulphate or chloride
IPC: C01F7/66
Filed: 1920-02-19
Abstract: Aluminium chloride, nitrate, and sulphate are purified from iron present as impurity by heating their solutions in the presence of a basic neutralizing agent such as aluminium hydrate, an alkaline-earth carbonate, slaked lime, or an easily decomposable basic aluminous mineral.  By adding the neutralizing agent in such quantity that from 2 to 10 per cent of the acid originally combined with the aluminium is neutralized, the iron is precipitated in a readily filterable condition.  The addition of iron oxide or hydrate which may be that precipitated in a previous process, after well washing from mother-liquor, accelerates the precipitation of the original iron. In an example, calcium carbonate is added to a solution of aluminium nitrate until 2 per cent of the total aluminium is present as oxide. After the addition or ferric oxide, and boiling for 15 minutes, the precipitated iron is removed by filtration or settling. p  In the Specification as open to inspection under Sect. 91 (3) (a) the process is described as applied to aluminium salts in general, and dolomite is mentioned as a neutralizing agent.  This subject-matter does not appear in the Specification as accepted.
Patent GB-230060-A (GB)
Title: Improvements in or relating to steam power installations
IPC: F22D11/00
Filed: 1925-02-24
Abstract: 230,060. Sulzer FrÞres Soc. Anon. March 3, 1924, [Convention date]. Stop-gear. - The engine steam and boiler fuel supplies in a power plant are cut off and a blow-off valve is opened when any one of a number of safety devices becomes effective. The oil-supply pipe b, a blow-off valve, the main stop valve e, and the condenser water supply k are connected respectively to controls n<1> - - n<4> subjected to the pressure in a compressed-air or other fluid or vacuum main m, and are all operated when the pressure in the pipe m varies. The pipe m is provided with relief valves p<1> - - p<7>; p<1>, p<2> are controlled by hand and the rest, automatically, p<3> is connected to the condenser through a regulator q, p<4> is controlled by the governor l, p<5> is operated by a fusible plug when the temperature of the waste gases is too high, p<6> is operated by a float in the boiler, and p' by excessive boiler pressure through a control u. Alternatively, the controls n<1> - - n<4> may be operated electrically through relays when a circuit is broken, and may be set to operate in succession.
Patent GB-643545-A (GB)
Title: Improvements relating to mechanical seals for rotary shafts
Inventor: PORGES FREDERICK BENJAMIN
IPC: F16J15/38
Filed: 1948-02-21
Abstract: 643,545. Stuffing-box substitutes. FLEXIBOX, Ltd. Feb. 21, 1948, No. 5194. [Class 122(v)] In a sealing device for a rotary pump shaft b having rotary and stationary seal rings g, h, to provide a mechanical seal and with seal rings d, i, m between abutting stationary parts and abutting rotating parts, means are provided for circulating liquid around the rotary and stationary sealing parts to protect the seals against deterioration due to heat, cold or abrasion with a pressure at least equal but not greatly exceeding that in the pump chamber around the shaft b so as to prevent delivery from this chamber to the circulating system. The liquid is tapped from the pump delivery and returned to the pump suction and may pass through a cooler, heater and/or filter. Specification 622,141 is referred to.
Patent GB-750716-A (GB)
Title: Improvements in or relating to heat stabilization of vinylidene chloride resins
IPC: C08K5/1515
Filed: 1954-02-22
Abstract: A heat-stabilized composition comprises a crystalline resin which is a polymer of vinylidene chloride or a copolymer thereof with other ethylenically unsaturated compounds, which copolymers contain at least 80 per cent of vinylidene chloride copolymerized therein, together with from 0.5 to 4 per cent by weight of pentachlorophenoxy propene oxide homogeneously compounded therewith.  The vinylidene chloride may be copolymerized with vinyl chloride, fluoride or acetate, styrene, methyl methacrylate, ethyl acrylate, acrylonitrile, methacrylonitrile, methyl vinyl ether, methyl vinyl ketone or methyl isopropenyl ketone. Compositions described contain di-n-propyl tetrachlorophthalate and phenyl salicylate in addition to the polymer and heat stabilizer, and may be usd for the production of filaments by extrusion.
Patent GB-525175-A (GB)
Title: Improvements in or relating to coating compositions for containers
IPC: C09D191/06
Filed: 1939-02-16
Abstract: 525,175. Coating-compositions. DEWEY & ALMY, Ltd. Feb. 16, 1939, No. 5213. Convention date, Feb. 17, 1938. [Class 95] A coating composition for containers comprises, in intimate admixture, a wax and rubber which, prior to such admixture, has been de-polymerized to such an extent, and which is present in such a proportion that the admixture, when molten, possesses a viscosity not substantially greater than that of the wax employed at the same temperature. Specified waxes are paraffin wax, micro-crystalline waxes, wax-like chlorinated naphthalenes, carnauba wax and beeswax. The rubber may be depolymerized by heat treatment in an oxidizing atmosphere.
Patent GB-651326-A (GB)
Title: Improved method and apparatus for the manufacture of containers such as paper bags
IPC: B31B50/22
Filed: 1947-02-24
Abstract: 651,326. Paper bags. SCHISLER, R. Feb. 24, 1947, Nos. 5309 and 5310. Convention dates, Feb. 25, 1946 and Sept. 2, 1946. [Class 94(ii)] Paper bags, preferably of the satchelbottom type, are formed after a web of paper 3 has been passed between rollers 1, 2, which are provided with creasing devices 4, 5, 7, 8 and cutters 6, 6b for forming slits 12, the cutting and creasing being done in one operation. Rib 5 and grooves 4 form longitudinal lines 9, Fig. 3; the scissors action of cutters 6, 6b form slits 12 and the parts 7, 8 from grooves 10. The strip 3 is later cut into sections on lines x'-x. Grooves 6a extend alongside the cutters 6. The clearance between the rollers 1, 2, may be adjusted. Larger rollers having a series of parts 4-8 around their peripheries, may be used. In a second arrangement, Fig. 4, the upper shaft 13 has a number of discs 15, 17 and the lower shaft 14 with corresponding discs 16, 18. The number of discs 15, 16 between pairs of discs 17, 18 may be varied to vary the transverse dimension of a bag.
Patent GB-101067-A (GB)
Title: Improvements in Electric Insulating Compositions.
Inventor: SOEBERG EYSTEIN
IPC: C08K3/34
Filed: 1916-04-12
Abstract: 101,067. Soberg, E., and Andersen, J. April 12, 1916. Plastic compositions containing soapstone.-A mixture of Norwegian talc-potstone or talc-soapstone and a binder is used for electric insulation. In examples, 50 parts of soapstone are mixed with 40 parts of resin and 10 parts of linseed oil, or 80 parts of soapstone with 20 parts of shellac and some drops of spirit to dissolve the shellac. The linseed oil is thickened by boiling, and is then builed with the resin before stirring in the soapstone. After cooling, the mass is kneaded, whereby it becomes plastic.
Patent GB-103226-A (GB)
Title: Improvements in Adjustable Wrenches.
Inventor: PICKARD JOHN HENRY
IPC: B25B7/10
Filed: 1916-04-13
Abstract: 103,226. Pickard, J. H. April 13, 1916. Hand-grip wrenches.-In adjustable wrenches of the pivoted cross-handled type in which the pivot pin is spring-controlled and adjustable into a series of pivot-holes, the pivot pin g is connected by a plate h with another pin i having a head j and surrounded by a coil spring k, whereby the pivot g may be adjusted to any of the holes f in one member c, the second pin i engaging the other member a. The pivot-holes f are arranged in a channelled groove in the member c to permit easy adjustment of the pivot g. The serrated ends b, c of the members a, c are longer than usual, and the end e is formed as an acute angle. The distance-piece m, Fig. 6, between the jaws b is made longer in this modification than in that shown in Fig. 1, so as to include the mounting of the pin i in a dished washer n secured therein. In another mounting for the pivot pins, one of the jaws b is partly cut away, and the other jaw b is flanged to form a bearing for the pin i.
Patent GB-678152-A (GB)
Title: Improvements in or relating to fastener driving devices
IPC: B25C1/06
Filed: 1948-02-24
Abstract: 678,152. Fastener driving machines. BOCJL CORPORATION. Feb. 24,1948 [Dec. 12, 1945], No. 5496/48. Class 89 (iii). A machine for forming and driving headed fasteners comprises a spring-raised plunger provided with means for bending down leg parts, cutting off, and driving successive T-shaped fasteners during each downward stroke of the plunger. A spring-raised plunger 2 when depressed moves a slidable plate 40 to the right against springs 45, as shown in Fig. 6, so that a pair or spring pawls 51 carried by the plate 40 engage in notches a in a prepared metal strip A to positively advance the strip when the plunger 2 is raised. Spring pawls 38 fixed to a U-shaped plate 35 and to the plate 12 prevent the strip A from moving backwards. The strip A, which is fed from a drum A', having a removable cover, into a groove 34 in a plate 12 is formed with slits a', a<SP>2</SP> so that each leg-forming part a<SP>3</SP> is in turn bent down by an offset tongue 23 of the plunger 2 while a previously bent fastener blank is cut off by an edge 24a of a driving tongue 24 co-operating with a cutting edge 60 on the plate 12. A full stroke mechanism comprising a spring centred pawl 29, grooves 26, 27 and serrations 28 is provided. An opening 53 in the housing permits removal of a defective strip A. Specification 678,153, [Group XXV], is referred to.
Patent GB-260209-A (GB)
Title: Improvements in or relating to respiratory cartridges for self contained breathing apparatus
IPC: A62B23/00
Filed: 1926-02-26
Abstract: 260,209. Drõger, A. B. Oct. 21, 1925, [Convention date]. Addition to 247,990. Respirators. - In respiratory cartridges as claimed in the parent Specification, viz. comprising parallel filter cells in which chemicalcontaining pockets a alternate with air pockets a<1> the pockets a being closed by perforated partitions such as c, the corrugated frames b forming the pockets are so arranged that, in adjacent cells, only pockets of the same kind are in alignment. Additional perforations d, wholly or partly in alignment, may be provided in the frames b and the partition c. The corrugations in the frames b may be of rectangular section and the air pockets a<1> may be formed with raised portions or may be wholly raised above the level of the chemicals in order to project into the superimposed air pockets. Alternatively, the corrugations mav be of dovetail section. In all of these modifications the partitions c are dispensed with, the closure of the pockets a being effected by the bases of the pockets superimposed upon them.
Patent GB-448405-A (GB)
Title: Apparatus for placing rubber bands on holders or cartridges
IPC: A01G9/12
Filed: 1935-03-26
Abstract: 448,405. Bundling. MACDONALD, W. R., and MACDONALD, Ltd., D. J., South St. Roque's Works, Dundee, and BURNETT, M. E. H., Bulb Farm, Newtyle, Angus. March 26, 1935, No. 5538 /36. Divided out of 447,445. [Class 94 (i)] The device is for use in connection with the bunching of flowers, for example, with the apparatus described in Specification 447,445. In order to place rubber bands on the holders or cartridges used in the apparatus, a number of bands are picked out of a container by thrusting therein a wire x, with a curved end x<1>. The wire has a large coned end x<2> terminating in a pin y. This pin is placed vertically in the space between pins q, Figs. 1 and 3, and the bands are pushed by hand over the cone on to these pins. The pins q are mounted on arms sliding in a cruciform plate r, and having rollers u movable in curved cam tracks v on a stationary plate. On rotating the plate r by means of a handle w, the pins are caused to move outwards to the position shown in Fig. 3, to expand the bands p. A cartridge is then placed in the centre space and the pins are brought to the centre, passing through gaps in the cartridge and leaving the rings on it.
Patent GB-251594-A (GB)
Title: Improvements in or relating to double and multiple filament electric incandescent lamps
IPC: H01K1/62
Filed: 1926-02-27
Abstract: 251,594. General Electric Co., Ltd., (Assignees of Patent-Treuhand Ges. f³r Elektrische Gl³hlampen). April 29, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Filaments. - To enable lamps to be run on lowfrequency alternating current without flickering, multiple-filament bulbs are provided with a choke or a condenser m in the circuit of one filament f, and with a non-inductive resistance l in the circuit of the other filament e, whereby the phases in the filaments are relatively displaced, preferably through 90‹. The phase-shifting device may be located in the cap of the buib, as shown, or in an adapter.
Patent GB-608425-A (GB)
Title: Bearing assembly for dynamoelectric machines
IPC: H02K1/18
Filed: 1946-02-22
Abstract: 608,425. Bearings. SINGER MANUFACTURING CO. Feb. 22, 1946, No. 5656. Convention date, April 23, 1945. [Class 12 (i)] Small electric motors have self-aligning bearing bushes held in their seatings in the end cover by a member with radial spring arms and a central part pressing the bearing bush into position, such spring arms being removably latched in position beneath hook means on the end covers of the motor, but being capable of some lateral and radial movement whereby the bearing bush can move to centre itself on its' seating. A small electric motor has its stator 1 clamped between moulded end covers 2, 3 of insulating material and the rotor is mounted by its shaft in oil-impregnated self-aligning bushings 10 held in seatings 16 in the end covers by a leaf spring member 18 with a central aperture, the dished rim 57 of which presses on the bushing 10; the diametral arms of the leaf-spring member engage behind latching lugs 62 formed on the end covers, but the latching up is such as to permit some lateral movement of the leaf spring whereby it can move to allow self-centring of the bushing on its seating.
Patent GB-124431-A (GB)
Title: An Improved Shaft Coupling.
Inventor: DISPOT ARTHUR
IPC: F16D3/04
Filed: 1919-03-07
Abstract: 124,431. Dispot, A. March 7, 1918, [Convention date]. Draining; casings enclosing stuffing-boxes. - The shaft 2, Fig. 1, of a rotary pump 8 is directly connected to the shaft 1 of an electromotor, by an Oldham coupling 3, which also prevents liquid escaping from the pump from reaching the motor. The pump stuffing-box is surrounded by a trunk formed on or attached to the motor casing, as shown.
Patent GB-1178917-A (GB)
Title: Improvements relating to Loose Leaf Binders
Inventor: TYLER WILLIAM FRANK
IPC: B42F13/12
Filed: 1967-02-07
Abstract: 1,178,917. Loose leaf binder mounted on a desk. C. H. HARE & SON Ltd. and ORCHARD & IND Ltd. 13 Dec., 1967 [7 Feb., 1967], No. 5757/67. Heading A4H. [Also in Division B6] A loose leaf binder (see also Division B6) comprising filing posts 17 hingedly mounted on a support 10 by resilient spring steel plates (14), Fig. 3 (not shown), and catch means 20 to hold the posts 17 in a closed position, is mounted on an inclined surface 40 to serve as a reading table for fan-folded stationery.
Patent GB-908600-A (GB)
Title: Improvements in and relating to printing plates
IPC: B41N1/12
Filed: 1960-02-18
Abstract: 908,600. Printing-surfaces. KOCH PROCESSES Ltd. Feb. 18, 1960 [Feb. 27, 1959], No. 5837/60. Drawings to Specification. Class 100 (2). [Also in Groups VIII and XX] A material comprises outermost layers of a synthetic resin reinforced by a web of fibrous material and a photo-colloid material, and one or more intermediate layers of a mixture of the resin and the colloid, the photo-colloid material being defined as a colloid which as such or after treatment with a sensitizer changes its solubility on exposure to light. The material is especially suitable for the preparation of wrapround relief printing plates or can be used for flat plates. Drawings (not shown) illustrate production of the material by successively spraying a moving glass fabric with (a) resin such as a polyester solution, (b) liquid mixture for 75% resin and 25% colloid, (c) for 50% resin and 50% colloid, (d) for 25% resin and 75% colloid and (e) for colloid solution alone which may be gelatin for subsequent dichromate sensitization. The use of epoxy and furane resins also is referred to. Gelatin may be brought into solution by use of papain.
Patent GB-1155670-A (GB)
Title: Improvements in and relating to Textile Comb Teeth
Inventor: NAKAGAWA KEIJIRO
IPC: D01H5/14
Filed: 1967-02-07
Abstract: 1,155,670. Textile combs. K. NAKAGAWA. 7 Feb., 1967, No. 5863/67. Heading D1N. Each tooth of a textile comb has shoulders 8 on opposite sides between a root portion of constant cross section and a nose portion 3 of decreasing, smaller cross section. A set of such teeth are aligned in touching relationship with the points of their nose portions along a straight line, and a Fig. 9 consisting of upper and lower members 11 and 10 with a resilient strip 12 and a stop bar 13 can be employed to grip the nose portions of the teeth while the root portions are soldered to a bar 7 to form a comb. Alternatively, wires or a strip may be attached to the aligned teeth held by the jig to serve as tempopary attachment members during transport.
Patent GB-767482-A (GB)
Title: Improvements in the manufacture of tubular metal elements
IPC: B21C37/28
Filed: 1952-03-06
Abstract: 767,482. Making pipe return bends; bending. HUET, A. March 6, 1952 [March 7, 1951], No. 5881/52. Classes 83 (2) and 83 (4). A tube bend is made from a straight tube having an eccentric bulge b, Fig. 3, or an aperture d, Fig. 4, by heating the region opposite the bulge b and bending the tube over a former e. The limbs may be bent by jaws f1 f2 which rotate about the former e or the aperture may be gripped by clamps h1, h2 while the tube is pushed between rollers g1, g2 which force back the limbs i. In a modification a slit may be provided in the bulge b which opens out to form an aperture during the bending operation. Specification 767,481 is referred to.
Patent GB-902875-A (GB)
Title: Improvements in writing instruments
Inventor: EDWARDS ERNEST ETHELBERT
IPC: B43K24/08
Filed: 1959-02-20
Abstract: 902,875. Reservoir pens. ROLL-TIP (ENGLAND) Ltd. Nov. 24, 1959 [Feb. 20, 1959], No. 5965/59. Class 146 (3). In a retractable ball-point pen a plunger of synthetic plastic material, e.g. polythene, attached to the rear end of the writing unit 8 and projecting from the rear end of the barrel has an integral flexible section 12 between its projecting end and the writing unit, which is transversely bowed and has a lateral projection which engages a longitudinal slot 6 in the barrel to retain the ball-point in its writing positior. Two steps 4, 5 which are formed on the lateral projection on the section 12 co-operate in turn with the rear end of the slot 6 to maintain the writing unit in projected and retracted positions respectively. From the retracted position shown the plunger is depressed to project the writing unit against the rearward bias of a spring 7. As the section 12 bows under the pressure the step 4 engages the rear end of the slot 6 and latches the parts in the projected position. The parts are released for retraction by the spring 7 by inward depression of the lateral projection on which are formed the steps 4, 5.
Patent GB-608552-A (GB)
Title: Improvements in or relating to hooks
IPC: F16B45/06
Filed: 1946-02-26
Abstract: 608,552. Hooks. GREY, J. A. Feb. 26, 1946, No. 6027. [Class 89 (ii)] A hook, particularly suitable for attachment to the rods of drying apparatus as described in Specification 452,319, [Group XIV], is formed of members 1, 2, 3, all of the same shape, and pivoted together at 4. As shown, the parts are made from sheet material and are of part-annular form extending over about 250 degrees of arc, though they may be of such shape that when closed up they form a link, an oval, ellipse, or rectangle. The parts 1, 2 can be closed round a rod or line, whilst the part 3 forms a hook.
Patent GB-294599-A (GB)
Title: Improvements in double-needle sewing machines and chiefly in machines for open-work
IPC: D05B73/12
Filed: 1928-02-27
Abstract: 294,599. Anciens Etablissements R. Cornely et Cie Soc. Anon. July 27, 1927, [Convention date]. Drawings to Specification. Multiple-needle machines. - In a two needle machine having two loop-takers rotating in a horizontal plane a small plate is added to the needle guide below the work plate which acts as a partition between the loop taker spaces and prevents two needle thread loops from becoming entangled together when they are being drawn away from the loop-takers.
Patent GB-355649-A (GB)
Title: Improvements in and relating to the roofs of closed bodies of motor road vehicles
IPC: B60J7/06
Filed: 1930-02-25
Abstract: 355,649. Road vehicle opening tops. PAGE, G., Claremont, Staines Road, East Bedfont, Middlesex. Feb. 25, 1930, No. 6167. Grant of Patent opposed. [Class 108 (i).] In a motor road vehicle of the closed or saloon type, a sliding panel is arranged to close or uncover an opening in the rear panel or quarter of the body and is preferably adapted to slide into a recess behind the rear squab or cushion. The sliding panel as shown comprises a rigid frame g provided with a window light and a flexible part comprising slats j arranged as in a roll-top desk the whole rear panel being covered with fabric j<1> &c. A closable roof comprising hoopsticks e, lazytong arrangement f, a cover adapted to be wound on a front roller, and an inner lining adapted to be wound on a rear roller all as described in Specification 323,593, [Class 108 (i), Road vehicles, Body details &c. of], may be provided and the sliding panel may be locked to such closable roof and operated with it. A balancing arrangement comprising a spring roller l<2>, cord l, and pulley l<1> is provided for the panel.