baber/WOPTO huggingface dataset:
Patent GB-865263-A (GB)
Title: Improvements relating to the grafting of cellulose acetate
IPC: D06M14/00
Filed: 1960-01-29
Abstract: Shaped articles of a graft copolymer having cellulose acetate as the substrate are prepared by impregnating a shaped article of ungrafted cellulose acetate with an initiator of addition polymerization, and then exposing the object at an elevated temperature to the vapour of an addition polymerizable monomer diluted with a vapour that does not react under the conditions employed.  Monomers specified are methyl methacrylate, acrylic ester, acrylonitrile, vinyl acetate, vinyl and vinylidene chlorides and styrene.  The mixture of vapours employed is preferably obtained by boiling a liquid mixture of the monomer with an unreactive liquid of substantially the same vapour pressure, e.g. mixtures of methyl methacrylate with water and vinyl acetate or acrylonitrile with heptane.  Polymerization initiators specified are hydrogen peroxide, potassium persulphate, benzoyl peroxide and azodiisobutyronitrile.  The initiator is preferably used in solution in a liquid which has at least a swelling action on cellulose acetate.  The cellulose acetate used may be in the form of a film, filament, fabric or moulded article.ALSO:A filament or fabric of cellulose acetate is modified with a grafted coating of a polymerized monomer by impregnating the filament or fabric with an initiator of addition polymerization, and then exposing the article to the vapour of a monomer diluted with a vapour that does not react under the conditions employed (see Group IV(a)).  Monomers specified are acrylic esters, methyl methacrylate, acrylonitrile, vinyl acetate, vinyl and vinylidene chlorides and styrene.  The use of vinyl acetate and acrylonitrile improves the resistance of the treated article to ultraviolet light.  When applied to fabrics the treatment causes interfusion of the yarns which yields a product suitable for use in decorative panels.
Patent GB-1526883-A (GB)
Title: Beadwire assemblies
IPC: B60C15/04
Filed: 1976-01-28
Abstract: 1526883 Tyre beads MICHELIN ET CIE (COMPAGNIE DES ETABLISSEMENTS MICHELIN) 28 Jan 1976 [29 Jan 1975] 3340/76 Heading B7C A tyre bead core assembly comprises three annular bead core elements 11-13 at least two of which are formed of wire, and an annular member, e.g. 15; as viewed in radial crosssection through the assembly the elements 11-13 being arranged at the vertices of an imaginary triangle and the annular member having three arms each of which is located between a respective pair of the elements 11- 13. The arms of the annular member may be straight, Fig. 1, or alternatively one or more of the arms may be curved or bent to embrace part of one of the elements 11-13, Figs. 4 and 6. The annular member may be made of metal or metal alloy or of reinforced or non-reinforced plastics or rubber, and may be in the form of a closed ring or a split ring (Fig. 8, not shown).
Patent GB-179260-A (GB)
Title: Improvements relating to the production of ornamental effects upon fabrics
IPC: D06C23/00
Filed: 1921-01-28
Abstract: 179,260. Calico Printers' Association, Ltd., and Gostobadie, H. A. Jan. 28, 1921. Napped and like fabrics; figured fabrics; mixed fabrics.-A fabric comprising threads of napforming material is so woven that at parts a, b thereof threads of smooth material, such as silk or artificial silk, are floated to the surface. The fabric is submitted to raising and curling or rippling processes and the parts a, b remain flat, thus producing a pattern in conjunction with the nap-forming surface c.
Patent GB-1030964-A (GB)
Title: Machine tool
IPC: B23Q5/26
Filed: 1964-01-28
Abstract: 1,030,964. Machine tool details. E. ANWYL. April 26, 1965 [Jan. 28, 1964], No. 3517/64. Headings B3B and B3T. A machine tool comprises a bed 10, a drilling unit C, facing unit A, and a chamfering unit B, carried on the base, and a headstock 12 having a work chuck 121 driven by an electric motor 11 through reduction gearing in the headstock. Each of the units A, B, C comprises a table 142, slidable on a base 141, a tool support 144 bolted to the table, a pneumatic feeding means 16, and a fluid pressure operated dashpot 17. At least one stop 21 is adjustably secured to the side of each table, and co-operates with a micro-switch 20 fixed to base 141. In operation a tool is rapidly traversed to the workpiece by pneumatic means 16, the stop 21 contacts switch 20 whereupon dashpot 17 is actuated to control the feed rate. In a modification bed 10 has a bridge which carries a vertically movable tool.
Patent GB-372766-A (GB)
Title: Improvements in and relating to screw propellers and the like
IPC: B63H1/26
Filed: 1931-02-04
Abstract: 372,766. Screw propellers. GALLO, C. H. A. S. S., Avenida Engenho, Marinha Grande, Portugal. Feb. 4, 1931, No. 3599. [Class 114.] A screw propeller for aerial or marine use, or a fan impeller, consists of a conical &c. boss 1 on which are formed blades 2,' the roots 3 of which are inclined rearwardly from a generator A, B passing through the forward end of the root. The outer edge of the blade merges into the boss. The propeller may be formed with two of four blades.
Patent GB-225423-A (GB)
Title: Improvements in or relating to non-slipping treads for floors or the like
IPC: E04F11/16
Filed: 1924-02-12
Abstract: 225,423. Wade, H., (Murnane, D. J.). Feb. 12, 1924. Treads and wearing surfaces.-A non-slipping tread, Figs. 1. and 2, consists of a sheet-metal base 6, in which are punched up flanged apertures 11, and channel members 8 also formed with flanged apertures 9 which are concentric with the apertures 11; filling material 15 such as lead is cast in the members 8 and is interlocked with the base 6. In the modification shown in Fig. 5, a cylindrical shell 20 surrounds an inner shell 24 and both are formed with flanged apertures which interlock with the lead filling 27, the whole forming a non-slipping stud a series of which is embedded in concrete.
Patent GB-469775-A (GB)
Title: Systems relating to electromagnetic transmission and their application to navigation
IPC: G01S1/02
Filed: 1936-02-07
Abstract: 469,775. Directive wireless signalling. SHARMA, D. N. Feb. 7, 1936, No. 3744. [Class 40 (v)] Relates to a radio-navigational system of the kind described in Specification 466,122, in which two overlapping beams are modulated on one side with say the syllable " CROY " and on the other with the syllable " DON," and consists in means for keying the beams alternately with these signals. The beams are radiated from two main aerial lines 4, 5, fed from the transmitter 1 and backed by reflectors 4B, 5B and associated resonators 3 and an earthed screen 2. Modulation is applied to the beams through a rotating disc 15, Fig. 4, formed with slots 20, 20A, marked with sound traces " CROY " and " DON " and carrying a coil 19 which couples the transmitter coil 16, in succession with the feeder coils 17 and 18. A double avenue of approach may be provided as shown in Figs. 6 and 6A, and lowpowered marker beacons may be associated to assist in making a blind landing.
Patent GB-576669-A (GB)
Title: Improvements in or relating to fire-extinguishers and supporting brackets for the same
IPC: A62C13/78
Filed: 1944-03-01
Abstract: 576,669. Fire extinguishers. HARRIS, G. W. March 1, 1944, No. 3834. [Class 47 (ii)] [Also in Group XIV] A fire extinguisher adapted to be supported in a bracket and of the type in which a sealing disc is pierced by means of a hand-operated plunger, is provided with means for preventing the accidental replacement of an empty extinguisher in the bracket. As shown, the closing cap a<1> of the extinguisher, in which the piercer spindle b is guided, has a recess a<2> in which the knob c is concealed when the extinguisher has been used. The bracket d is provided with a two-armed spring e forked at the upper end. When a charged extinguisher is placed in the bracket, the end e<2> of the spring is flexed backwardly, forcing the forked end into engagement with a groove c<1> in the projecting knob c. To prevent the withdrawal of the knob c of an empty extinguisher, an internal spring may be arranged to engage a recess in the spindle.
Patent GB-964366-A (GB)
Title: Improvements in hair-curlers
IPC: A45D2/24
Filed: 1962-02-01
Abstract: 964,366. Hair-curling appliances. H. DANNAT. Feb. 1, 1962 [Feb. 2, 1961], No. 3852/62. Heading A4V. A hair curler comprises a hollow cylindrical stem 2 and axially displaceable hair-gripping members 5 provided with inwardly directed teeth 6 which slide in aperatures 7 in end rings 8 on the stem, an inner ring 9a of each member 5 sliding inside the the stem and having projections 9 which are snap-fitted in slots 10 in the stem to limit the relative movement. The stem has hair-gripping projections 3 and apertures 4.
Patent GB-939961-A (GB)
Title: Switching circuits
IPC: G11C19/28
Filed: 1960-02-03
Abstract: 939,961. Tunnel-diode circuits. RADIO CORPORATION OF AMERICA. Feb. 3, 1960 [Feb. 24, 1959], No. 3863/60. Class 40 (6). A logical switching circuit comprises a tunnel diode 10 having a negative resistance portion to its characteristic, Fig. 2 (not shown), a source 20 of energizing pulses and a plurality of pulse inputs 24, 26, 28, the amplitude of the pulses from the source 20 being such that they are insufficient by themselves to switch the diode to its high-voltage condition but will effect such a transition when applied simultaneously with a predetermined minimum number of pulses at the inputs 24, 26, 28. In a modification, Fig. 3 (not shown), the voltage source 20 with its series resistor 18 is replaced by a constant-current pulse source. The circuit may be made to function as an AND-gate, OR-gate or " threshold " gate by suitably choosing the amplitude of the pulse applied from source 20 in relation to the amplitudes of the input pulses. Thus if an input pulse is required at each input terminal in addition to the energizing pulse to effect the desired switching an AND gate results. If only one input pulse suffices an OR-gate results while if an intermediate number of pulses is needed a " threshold " gate results. Fig. 5 illustrates a logical system in which the outputs from two AND-gates are combined in an OR-gate the output from which is combined with a further - input in an AND-gate. In order to ensure the flow of information from left to right through the system the energizing pulses for the OR- gate 64 are delayed with respect to, but overlap those for the AND-gates 60, 62, and the energizing pulses for the AND-gate 66 are similarly delayed with respect to those for the OR- gate 64.
Patent GB-252056-A (GB)
Title: Improvements in automatic telephone switching apparatus
IPC: H01H63/06
Filed: 1925-02-11
Abstract: 252,056. Standard Telephones & Cables, Ltd., (Deakin, G., and Schreiber, L. J. J.). Feb. 11, 1925. Selectors.-A switch of the kind provided with a brush carriage and. a trip spindle comprises the following features: (1) The bearings for both spindles are formed on the framework in which the terminal bank is assembled. Top and bottom plates 1, 2 are formed from single sheets of metal with flanges 4, 5, 3, the flanges 4 being provided for attaching the switch to the bay frame, and the flanges 5, 3, being drilled to form self-centring bearings of the kind described in Specification 194,878, for the brush carriage and trip spindle respectively. The plates 1. 2, are held together by distance pieces 7. (2) Blocks of terminals each comprising a complete vertical row are clamped between top and bottom sectors 8 which are movable with respect to the switch framework. The sectors 8, which are formed with slots 9 into which fit small tongues on the ends of the terminal blocks, extend between the distance pieces 7, three of them making up a complete arc of rotation of the switch. The bottom sectors rest upon lugs on the members 7 whilst the top sectors 8 are clamped down by set-screws 10 bearing on shaped pieces 11, 12 engaging the ends of the sectors 8, thus permitting any terminal block to be removed without disturbing those in other sectors. The bottom sectors 8 may also be made movable by set-screws so that the terminal bank may be adjusted vertically.
Patent GB-211686-A (GB)
Title: Improvements in liquid soap dispensing apparatus
IPC: A47K5/13
Filed: 1923-02-09
Abstract: 211,686. Payne, J. W. Feb. 9, 1923. Soap-holders.-A holder for liquid soap comprises an inner vessel C of glass or other transparent material fitted within a metal casing B having a cover A screwed thereto. The casing B is formed with openings D through which the level of the soap may be observed. A removable nozzle E is provided, and the casing B is mounted in the usual way.
Patent GB-706955-A (GB)
Title: Improvements in or relating to brake shoes and the method of making same
Inventor: GOEPFRICH RUDOLPH ALOYSIUS
IPC: F16D65/08
Filed: 1952-02-14
Abstract: 706,955. Brake shoes. BENDIX AVIATION CORPORATION. Feb. 14, 1952, No. 3908/52. Class 103(1) [Also in Group XXII] A brake shoe comprises an arcuate rim 28 with rivet holes 40 secured to an arcuate web 22 by means of tongues 26 projecting from the web into a series of slots 38 along the middle of the rim and secured therein by rolling (see Group XXII).
Patent GB-486466-A (GB)
Title: A method of holding paper or like strips for distribution
IPC: B42D5/00
Filed: 1937-02-10
Abstract: 486,466. Books of tickets &c. NORBURY, G., and NORBURY, E., (trading as CHALLENGE ELECTRICAL SPECIALITIES). Feb. 10, 1937, No. 3953. [Classes 16 and 73] A pad of paper or like strips 3, such as cloakroom tickets, wherein the strips are stapled or otherwise secured together and weakened by cuts or perforations near the bound edge, has relatively rigid covering strips 6 secured thereto at the bound edge and extending nearly to, but not quite to, the free ends of the strips 3, and means is provided for holding the free ends of covering strips 6 against the strips 3. As shown, the strips 3 and covers 6 are enveloped by an outer member 7 comprising a piece of paper the side edges of which are secured together by adhesive. If desired, an elastic band 8 can be placed on the strips 3 or covers 6 near the free ends. Only the projecting free ends of the strips 3 can thus be inspected before the strips are removed from the pad,
Patent GB-898733-A (GB)
Title: Carton forming machine
IPC: B31B3/46
Filed: 1960-02-04
Abstract: 898,733. Making cartons. FMC CORPORATION. Feb. 4, 1960 [Aug. 17, 1959], No, 3990/60. Class 18. A carton-forming machine comprises a frame 22, 24, 26 and dies 150, 152, 154, 156 for bending flaps C2-C5 of a blank as in Fig. 8, each of which dies partly defines an opening corresponding to the shape of the blank base panel C1 and is adjustable to accommodate different sizes of blanks, and means e.g. a reciprocating suction head B for moving the blanks through the opening so that the dies bend the flaps C2-C5 normal to the base panel Cl. The dies 150, 152, 154, 156 comprise T- shaped members sliding in grooves on the upper surface of a top casting 28, members 150 and 154 being set lower than the other two; slots and locking bolts fix each member in the desired position e.g. slot 184 in leg 180 of the member 150 and bolt 186 as indicated on a scale 240 and index mark 242. Bolts project through blocks to engage in corresponding slots in adjacent cross bars of the T-shaped members e.g. block 200 mounted on the cross bar 182a has a bolt 202 projecting through slots 190 and 192a. and upwardly projecting plates 220, 222, 224, 226 are fixed to these blocks 200, 212, 214, 216 to define the blank magazine A. T- shaped blank supports 254, 267, 268, 269 are slidably mounted upon spacer blocks fixed to the upper surface of each die member and are provided with chamferred inner edges on which are supported the blanks in the magazine A. In operation, the suction head B, provided with suction cups 50 connected to vacuum system H, grips the lowermost carton blank C in the magazine A and draws it down through the bending dies 150, 152, 154, 156 so that the flaps C2-C5 are bent normal to the base panel C1. As the blank continues downwards, the flaps are further bent over by mechanism consisting of four identical systems 280, 282, 284, 286, each one comprising a rotatable shaft supported by plates depending from each end of the die cross-bars and provided with three bending fingers operated by an adjustable solenoid-controlled assembly. On further descent of the suction head B, plates 350 and 352 strip therefrom the blank C while an air blast from nozzle 72 blows it into the discharge shoot F. Power is provided by a motor 66, the various operations being controlled by a system of solenoids and microswitches.
Patent GB-218596-A (GB)
Title: Electro-mechanical apparatus for the automatic dropping of any article from aircraft
IPC: B64D1/02
Filed: 1924-02-15
Abstract: 218,596. Alkan, R., and Lesourd, G. Feb. 15, 1924. Dropping bombs and other articles from a height.-Relates to electromagnetically-operated systems of levers for dropping articles from aircraft, and consists mainly in that the first two levers 8, 13 are connected together permanently by a link 12 with pivots or like hinges so that they constantly remain in positive connection. The swing of the lever 13 is limited by stops 6, 7; and the end 16 of the lever is adapted to be locked by a third lever 15 pivoted at 4 and carrying an armature 18. The lever 15 is normally held down by a spring 23; and a cam 19 is provided whereby the lever 15 can be locked against movement, or freed for operation by an electromagnet 17, or positively deflected to release the system of levers. The first lever 8 has a hook 9 for holding a. ring 10 attached to the article to be dropped, and a cam face 22 for controlling a bellcrank lever 21 connected to a switch contact member 26 which a spring 20 tends to raise from other contacts 27. This switch controls the circuit of the electromagnet 17 and also the circuit of a signalling device. The parts being in the position shown in Fig. 1, when the main switch is closed, the electromagnet 17 and the signalling device are both operated, the lever system is released, and the article dropped. As the first lever swings round, its cam face 22 allows the switch member 26 to rise and cut off the circuits of the electromagnet and of the signalling device.
Patent GB-486146-A (GB)
Title: Improvements in and relating to the moulding of powdered horn
IPC: C08L91/00
Filed: 1937-02-11
Abstract: Horn powder, for example, that obtained by grinding hoofs, is treated with solutions of urea or thiourea and formaldehyde, or the initial condensation product of these substances, and dried, ground, and hardened by drying at temperatures below 70 DEG  C. Paraformaldehyde may replace the formaldehyde, and the treatment may be carried out in the presence of ammonia or hexamethylene tetramine.  The product may be moulded by hot-pressing at 130-150 DEG  C.ALSO:Horn powder, for example, that obtained by grinding hoofs, is treated with solutions of urea or thiourea and formaldehyde, or the initial condensation product of these substances, and dried, ground and hardened by drying at temperatures below 70 DEG  C. Paraformaldehyde may replace the formaldehyde, and the treatment may be carried out in the presence of ammonia or hexa-methylene tetramine.  The product may be moulded by hot-pressing at 130-150 DEG  C.
Patent GB-840832-A (GB)
Title: Organosiloxane co-polymers
IPC: C08G77/14
Filed: 1958-02-07
Abstract: A siloxane copolymer consisting essentially of from 45 to 55 mol. per cent of g -hydroxypropylmethylsiloxane, from 35 to 55 mol. per cent of phenylmethylsiloxane and up to 15 mol. per cent of mono-methyl- or phenyl-siloxane, is best prepared by the method set forth in Specification 810,283.  The copolymers are cured by mixing them with di- or poly-isocyanates, the curing being hastened, if desired, by heating or by adding a catalyst, e.g. methyl morpholine.  Isocyanates specified are hexamethylene-, m-toluene-, p.p1-diphenylmethane-, 3.31-dimethyll p  4.41 - biphenylene -, 3.31 - dimethoxy - 4.41 - bi-phenylene - and 3.31 - dichloro - 4.41 - biphenylene-diisocyanates.  Solvents, e.g. toluene, xylene, ethyl acetate and petroleum ether, pigments, dyes and other additives may also be added.  In Example (1) a mixture of g -acetoxypropylmethyldi-, phenylmethyldi- and phenyltri-chlorosilanes and toluene was hydrolysed at 50 DEG  to 60 DEG  C. with subsequent saponification to give the desired copolymer which was then mixed with toluene and toluene diisocyanate.  In other examples, similarly made copolymers were mixed with toluene diisocyanate and with or without solvents and catalysts to give airdrying compositions.  Uses: as varnishes or paints for coating metals and exterior wood surfaces. Specification 769,497 is referred to.ALSO:A coating composition comprises a copolymer consisting essentially of from 45 to 55 mol. per cent of g -hydroxypropylmethyl siloxane, from 35 to 55 mol. per cent of phenylmethylsiloxane and up to 15 mol. per cent of monomethyl - or phenyl - siloxane, and a di - or polyisocyanate (see Group IV (a)).  Solvents, e.g. toluene, xylene, ethyl acetate and petroleum ether, pigments, dyes and other additives may be added. The compositions are used as varnishes or paints and can be applied, as by brushing, dipping or spraying, to surfaces such as wood, metal, e.g. aluminium, ceramic or plastics, and will generally cure to a tack-free state at room temperature.  Curing can be hastened by heating or by using a catalyst.  Examples are given.  Specifications 769,497 and 810,283 are referred to.
Patent GB-347772-A (GB)
Title: Improvements relating to storage and packing of gramophone disc records
IPC: B42F5/00
Filed: 1930-02-07
Abstract: 347,772. Storing gramophone records. WARD, C. A., 63, Edith Road, West Kensington, London. Feb. 7, 1930, No. 4169. [Classes 11, 146 (i), and 146 (ii).] To relieve gramophone records of pressure in packing and storing, spacing means are provided adapted to bear on the outside of each envelope, outside the record area. Such spacing means may consist of a flat sheet 1, Fig. 1, of cardboard or the li e, with projections 2 on one or both sides of the sheet; or the envelope itself may be provided externally with the spacing members. The envelopes and spacing means, either separate or integral, may be bound in a loose-leaf binder, when a presserboard is provided, having near its outer edge two headed pins to which are attached tapes secured to the back cover of the pile. When in a storage album, envelopes and spacing sheets alternating are bound together and the side covers of the album are formed with spacing pieces to co-operate with the corresponding pieces on the outermost spacing sheets. For packing in a crate, a rectangular base 19, Fig. 9, is employed, having four rods 21, on which are mounted top and bottom felt-lined pressboards 24, fitted with spacing pieces 26, between which are mounted the record envelopes and spacing sheets 1, the whole being held firm by wing nuts 22. A lid 29 and side casing 30 are then placed over the base 19 and clamped by bolts 23.
Patent GB-453424-A (GB)
Title: Apparatus for the determination of the thickness of metal walls
IPC: G01B7/06
Filed: 1935-02-08
Abstract: 453,424. Snap-action switches. STEVENSON, A. B., Winnington Hall, Northwich, Cheshire, and IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London. Feb. 8, 1935, No. 4186. [Class 38 (v)] [See also Group XIX] A hand switch comprises a drum 31 carrying cams 32, 33 set angularly 90‹ apart. A detent spring 34 engages a square 35 on the drum and holds the cams against the flexible strips 8c, 8d, connected to a battery 8. A lever 36 pivoted on the drum axis is attached to the drum by a spring 37 at a point midway between the cams. When the lever 36 is on the side b the flexible strip contacts 9b are open and 9a closed. When the lever is moved to position a, the spring 37 is first tensioned until it overcomes the spring 34, whereupon the left-hand side of the flexible strips are first released from the contacts 9c, 9d, allowing contacts b to close, and the drum snaps over for the cam 33 to engage the right hand side of the flexible strips 8c, 8d and cause the strips 9e, 9f to open contacts 9a.