baber/WOPTO huggingface dataset:
Patent GB-970248-A (GB)
Title: Improvements in or relating to animal feeding appliances
Inventor: DEVEY RONALD ALFRED
IPC: A01K39/01
Filed: 1962-08-25
Abstract: 970,248. Animal feed appliances. LYNLAY Ltd. Aug. 23, 1963 [Aug. 25, 1962], No. 32738/62. Heading A1M. [Also in Division E2] An animal feeding appliance comprises a trough 10 of channel section from the base of which is supported a rail 12 on which a hopper assembly is supported for movement along the trough to dispense feedstuff to a predetermined depth in the trough. As described there are two troughs 10 each having a rail 12 formed by upward deformation of the base of the trough. The hopper assembly comprises a frame 22 supporting hoppers 23 at the ends of which are slidable plates 31 adjustable vertically to vary the height of feedstuff in the trough. The appliance is adapted to open a door 41 leading to a bulk feed store and hinged about a horizontal axis, the ends 43 of a pivot bar 42 being received in slots in plates 45 attached to the doorwary. Channels 46 secured to the side walls 24 of the hoppers engage and turn cams 47 to lift the ends of the bar 42 from the slots thereby allowing the door to pivot when engaged by the hopper assembly. The appliance may be moved along the rail by means of a winch on an electric motor.
Patent GB-336122-A (GB)
Title: Liquid filter
IPC: B01D29/46
Filed: 1929-10-29
Abstract: 336,122. Svenska Ackumulator Aktiebolaget Jungner. Oct. 30, 1928, [Convention date]. Rotary disc valves. - Edge filters are constructed so that they serve also as valves. Sheet metal elements for building up edge filters are so shaped and arranged that parts of their contours project outwardly beyond the corresponding parts of adjacent elements, so that straining passages are formed partly between the side faces of two projecting. parts, partly between the inner and outer contours respectively of projecting and non-projecting parts, and partly between the side faces of parts which do not project. One form of element is shown in Fig. S. The elements are piled on a central spindle so that the projecting parts 14 of one element correspond to the parts 15 of the adjacent element which do not project. The arrangement of two adjacent elements is indicated in Fig. 5. Filtration may take place inwardly first between two neighbouring portions 14, then through passages 17 between inner and outer contours, and finally between neighbouring parts 15 into the central channels. Filtration may, however, be in the reverse direction. Fig. 7 shows a filter having a casing 1 preferably of glass and a metal cover 2 with an inlet passage 3 and an outlet passage 4. The elements are supported on a plate 27 fixed to a central stud 9 which extends through the cover and has a turning-handle 26. A pin 20 secured to the cover 2 engages recesses 19, Fig. 5, in alternate elements, and a pin 21 secured to the plate 27 engages recesses 19<1> in the remaining elements. The latter can thus be turned with the stud 9 to bring all the elements into a uniform position, the operation serving to remove obstructing matter and to shut off flow so that the arrangement acts as a valve. In another form of filter, Fig. 8, the stud 9 is screwed into the cover, is threaded for the greater part of its length, and. flattened on opposing sides. The parts are held together by a sleeve nut 36 extending through the bottom of the casing. Alternate elements of the pile have central apertures corresponding in shape to the cross-section of the stud 9, the others have circular central apertures and are connected to top and bottom plates 28, 29 by longitudinal pins. Recesses in the outer edges of the plates 28, 29 engage projections on the inside of the casing. The cleaning of the filter is effected by slightly loosening the nut 36 and turning the casing, so that the plates 28, 29 and the disc elements connected thereto are turned with it, the alternate elements being incapable of rotation about the stud 9. The disc elements may take numerous forms. Fig. 13 shows two consecutive elements having a spiral contour in relative position for filtering, and Fig. 14 two of rectangular form. In one form, the alternate elements have apertures to receive connecting pins which prevent rotation of these elements. In another, the elements have external projections which themselves engage stops.
Patent GB-263844-A (GB)
Title: Manufacture of alkylnaphthalenes chlorinated in the nucleus
IPC: C07C17/12
Filed: 1926-12-29
Abstract: 263,844. I. G. Farbenindustrie Akt.- Ges. Dec. 29,1925, [Convention date]. Chlorinated alkylnaphthalenes.-Alkylnaphthalenes are chlorinated in the nucleus by means of sulphuryl chloride at a low temperature. Examples are given in which (1) 1: 4-and 1: 2- chloromethylnaphthalene, are obtained by the action of 1 molecular proportion of sulphuryl chloride on 1 molecular proportion of 1- and 2- methylnaphthalene respectively; (2) a monochloro- and a dichloro-2: 6-dimethylnaphthalene are obtained by the action of 1 and 2 molecular proportions respectively of sulphuryl chloride on 1 molecular proportion of 2 : 6-dimethylnaphthalene. An indifferent solvent such as ether or tetrachlormethane may be used. The Specification as open to inspection under Sect. 91 (3) (a) describes also the preparation of a dichloromethylnaphthalene, either by the action of 2 molecular proportions of sulphuryl chloride. on 1 molecular proportion of 2-methylnaphthalene or 1 molecular proportion of sulphuryl chloride on 1 molecular proportion of 1 : 2-chloromethylnaphthalene. This subject.matter does not appear in the Specification as accepted.
Patent GB-773517-A (GB)
Title: Improvements in coil winding machines for electric motors and the like
IPC: H02K15/06
Filed: 1954-11-12
Abstract: 773,517. Stator winding machines. GENERAL ELECTRIC CO. Nov. 12, 1954 [Nov. 12, 1953], No. 32843/54. Class 35. Wire is wound on to a former to form a multi-turn coil which is then transferred to an injection head which inserts the coil into the slots. The wire for the coils is fed to a pulley 14, Fig. 7, on a drum 125 disposed between a fixed inner core 123 and a fixed housing 126 and the wire passes through a tube 147, over shoe 149 and over wheel 150 to a carriage 16 reciprocating on a guide tube 154 rotating with drum 125 about the form 172 (Fig. 20) on which the coils are formed in three levels 173, 174, 175 and from which they are removed by sliding hydraulically-actuated pusher blades 193, 194 and 195 (Fig. 8) between divider plates 183, 184 and 185. The drum 125 is belt-driven in one direction or the other by motor 1 or 2 depending on which way the T arm 44 (linked up with the starting-pedal 9) is tilted. The coils are pushed into the slots 231 of injection head 20 (Fig. 19) which is presently positioned at the end of coil form 172 and then moved into the bore of the stator by driving-rod 258 through gear 276, rack 272 and cam 271 from motor 21 which also, by means of cam 270, rack 279 and shaft 281 drives racks 286, 287 through openings 250 in caps 247, 248 (Fig. 19) which will force pusher shoes 238, 239 forward within shell 234 of injection head 20 causing blades 255 and raised portions 253 on the pusher shoes to force the coils out of slots 231 of head 20 into the stator slots. The stator is held in supports near the head 20 with its axis in alignment with that of rod 258 and so that extensions of the racks 288, 289 can actuate the pusher shoes and when these have been withdrawn into head 20 the latter is moved back to receive further coils which have been wound on the former while the others have been placed in the stator slots. The pushing of the conductors into the stator slots is described in detail with reference to Figs. 15- 18 (not shown). The conditions governing the position of tiltable arm 44 are also described in detail. The number of turns wound in each coil is governed by the distance between adjustable cams 90 and 108.
Patent GB-737982-A (GB)
Title: Improvements relating to air filtering apparatus
IPC: F24F13/28
Filed: 1953-11-26
Abstract: 737,982. Filtering gases. VISCO ENGINEERING CO., Ltd., and ELLIS, L. C. Aug. 25, 1954 [Nov. 26, 1953], No. 32855/53._ Class 8 (2). Filter cells 3 of a vertical travelling band carried by upper and lower sprockets are cleaned whilst passing below the lower sprocket 7 by a continuous or an intermittent jet of oil or other suitable liquid issuing fron a transversely - reciprocated spray nozzle 10; each cell 3 being tilted about a pivot pin 4 by a stop 8 so that first the upper surface then the dirty side is washed The cells are of conventional construction, e.g grids, plates, wire gauze or wire wool.
Patent GB-981095-A (GB)
Title: Improvements in or relating to self-checking supervision circuits
IPC: G08B23/00
Filed: 1961-09-14
Abstract: 981,095. Selective signalling systems. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Sept. 14, 1961 [Sept. 17, 1960], No. 33001/61. Heading G4H. In a supervision circuit, a bi-stable circuit F 6  is set to state "1" at an instant t 1 , may then be set to state "2" at t 2  (for example when a code group is entered into bi-stable circuits F 1 -F 5 ) may subsequently be set to state "1" by a checking pulse delivered by circuit CO at t 3  (signifying, for example, that the code group set in F 1 -F 5  is an acceptable "two out of five group), and is finally set to state "2" at t 4 , the pulse generated by F 6  in changing from state "1" to state "2" at. this instant being selected by gate P1 and alarm lamp AL being lit if this pulse is missing. Other checking circuits may be connected to gates P2, P 3  which should produce pulses at instants t 5 , t 6 . When no errors are detected by circuit CO and the system is functioning correctly, bi-stable circuit F 9  is switched from state "2" to state "1" and back again during each pulse cycle t 1 -t 7  so that relay A is energized and holds contact a open. If a pulse from one or more of gates P 1 -P 3  is missing, F 9  is set to state "1" at t 7  and remains in that state so that relay A is released and lamp AL lights.
Patent GB-1432901-A (GB)
Title: Electrophotographic apparatus
IPC: G03G21/00
Filed: 1974-07-25
Abstract: 1432901 Controlling copying machines OCEVAN DER GRINTEN NV 25 July 1974 [31 Aug 1973] 33007/74 Heading G2H In an electro-photographic copier of the kind in which a photo-conductive belt 27 is transported through a series of processing stations where it is successively charged 42, exposed, developed 52 and the developed image transferred 39 to a copy sheet 55 to which it is then fixed 59, 60; the belt 27 is provided along its length with a plurality of equally spaced marks dividing it into a plurality of equal length portions, on each of which portions an image is to be formed, and the marks are sensed at a point 53 along the path of travel of the belt 27 to produce electrical pulses which, together with electrical timing pulses generated at a frequency proportional to the velocity of the belt 27, are used to trigger circuitry that regulates the initiation and duration of operation of the various processing stations and the copy sheet feed. As shown a zigzag belt 27 is used the marks coinciding with the folds in the belt. The controls may be set to produce one or a pre-set number of copies of an original.
Patent GB-1138382-A (GB)
Title: Anti-static compositions
IPC: G03C1/95
Filed: 1966-07-22
Abstract: 1,138,382. Polyvinyl alcohol compositions. EASTMAN KODAK CO. 22 July, 1966 [26 July, 1965], No. 33020/66. Heading C3P. [Also in Divisions B2 and G2] An antistatic coating composition comprises an aqueous solution of polyvinyl alcohol and an alkali metal halide containing a dispersion of a matting agent having particles of a crosssectional diameter between 0À5 and 15 microns. The preferred halide is potassium chloride and the preferred matting agent is silica particles or polymethyl methacrylate beads. The compositions may be used to prepare photographic films. A further subbing composition useful in preparing the films comprises a copolymer of vinylidene chloride, an alkyl acrylate, e.g. methyl acrylate and itaconic acid. In the example the subbing composition also contains resorcinol, saponin and water; the antistatic composition also contains cetyl betaine, zirconium nitrate and potassium hydroxide.
Patent GB-898743-A (GB)
Title: Process for the production of compound polymers of polyacrolein
IPC: C08G81/02
Filed: 1959-09-29
Abstract: Compound polymers are produced by reacting polymeric silica with a polymer or copolymer of acrolein or substituted acrolein. The unreacted aldehyde groups of the compound polymers can be converted into other groups as described in Specification 797,459.ALSO:Compound polymers are produced by reacting macromolecular polymerization products of acrolein or a -substituted acrolein, or copolymers of acrolein or a -substituted acrolein, with at least one macromolecular substance which contains per macromolecule more than four groups capable of reacting with aldehyde groups, such as cellulose, starch, alginic acid, pectin, polyvinyl alcohol, polyethylene imine, polyvinylamine, collagen, gelatine, albumin, globulin, wool, lignin, casein, keratin, or a polymeric silica. Examples describe the reaction of polyacrolein in sulphurous acid solution with polyvinyl alcohol, gelatine, cellulose, albumin, finely divided polymeric silica, polyacrylic acid hydrazide, globulin and polyethylene imine. The unreacted aldehyde groups of the compound polymers can be converted into other groups, e.g. as described in Specification 797,459.  Polyacrylic acid hydrazide is prepared by heating polymethyl acrylate with hydrazine hydrate on a water bath until a homogeneous solution has formed and then pouring into methanol containing glacial acetic acid when the product precipitates.ALSO:Compound polymers are produced by reacting polymers or copolymers of acrolein or a -substituted acrolein with collagen, gelatine, albumin, globulin, casein or keratin.  The unreacted aldehyde groups of the compound polymers can be converted into other groups as described in Specification 797,459.
Patent GB-167430-A (GB)
Title: Improvements in or relating to stone crushers
IPC: B02C1/10
Filed: 1920-11-24
Abstract: 167,430. Bechgaard, P. Nov. 24, 1920. Crushers w i t h vibrating jaws.-In a stone-crusher of the kind having two jaw movable in relation to each other, the ridges forming the working surfaces of the jaws are so formed or arranged that the space between the tops of the ridges on the two coacting jaws is less at the middle of the jaws than at the outer parts thereof to ensure uniform wear all over the width of the jaws. The ridges may be integral with a common member or consist of separate bars. As shown, the height of the ridges 2 at the middle of the crushing-plate 1 is greater than the height of the ridges 3, 4. The ridges may be triangular in cross-section, and all the ridges may have the same base width so that the ridges 3, 4 at the edges of the plate, owing to their diminished height, have a larger apex angle than the ridges 2 near the middle of the plate. A convex plate with ridges of equal height may be used.
Patent GB-1439226-A (GB)
Title: Optical scanning arrangement
IPC: B65G47/49
Filed: 1973-07-12
Abstract: 1439226 Optical scanning ZELLWEGER USTER Ltd 12 July 1973 [22 Aug 1972] 33181/73 Heading G2J An optical scanning arrangement for reading symbols e.g. prices or for stock control comprises a source e.g. laser 2 which produces a scanning beam 3, 12, 15 which falls on the symbol 19 from which a receiving beam 20-24 is returned to a photo-electric detector 27. The two beams 3, 12, 15 and 20-24 fall on spatially separated areas of optical elements (e.g. reflectors 10, 13) in their path to improve the signal-to-noise ratio. In the arrangement shown, light from laser 2 is focused by a cylindrical lens 4 and reflected by prism 7 before falling on area A of rotatable polygonal mirror 10 from which the scanning beam passes through a toroidal meniscus lens 22 and is reflected from area B of concave mirror 13 which focuses the beam on the character to be read at 19. The reflected beam falls on area C of mirror 13, passes through a further toroidal meniscus lens 14, is reflected from area D of the polygonal mirror 10 and is focused by cylindrical lens 25 and lens 26 on a photo-electric receiver 27. An additional plane reflector 17 and protective glass plate 30 may also be provided as shown.
Patent GB-1061054-A (GB)
Title: Improvements in or relating to laminated sheet material
Inventor: WORKMAN JOHN FREDERICK
IPC: B32B27/00
Filed: 1962-08-29
Abstract: 1,061,054. Laminates. KIMBERLY-CLARK Ltd. Aug. 29, 1963 [Aug. 29, 1962], No. 33211/62. Heading B5N. A laminated sheet material suitable for medical use, e.g. as a sheet in an operating theatre, waterproof covers for trollies or wrappers for sterile dressing packs comprises a sheet of thermoplastic material such as polyethylene sandwiched between two outer sheets of cellulose wadding which may be creped, the permeability of the material initially being such as to allow steam to pass through it for sterilization and whereafter, as a result of the steam treatment, being such that the material is substantially impermeable to blood. The material is made by extruding the plastics sheet between the cellulose wadding sheets as they pass through the nip of a pair of rollers.
Patent GB-1423320-A (GB)
Title: Storage devices method and apparatus for producing isolated laser pulses having  a fast rise time
IPC: G06F12/08
Filed: 1974-07-29
Abstract: 1423320 Data stores SIEMENS AG 29 July 1974 [26 Sept 1973] 33354/74 Heading G4C [Also in Division H1] A storage device includes an MOS store having a relatively short access time and a CCD store having a relatively long access time, or assigned zones thereof, integrated into a common semiconductor chip. The MOS and CCD stores may serve as a buffer store and a main store, or as a main store and a page store, respectively. In the Figure CCD storage loops LVS, each of which preferably includes a regeneration stage, are connected to a common line SL and hence through a buffer store P to an MOS store MS. Data traffic to assemblies outside the chip HP is via line AL.
Patent GB-300586-A (GB)
IPC: H04M1/60
Filed: 1928-11-14
Abstract: 300,586. Hausdorf, E. Nov. 15, 1927, [Convention date]. Telephone systems and apparatus. - A substation is provided with an auxiliary receiver Hi for the use of deaf persons which is connected up through an amplifier R by means of contacts U1, U2 controlled by its switch-hook. The filament current and high tension are obtained from a lighting circuit through a contact K controlled by the relay Re, which is operated by the lighting current.
Patent GB-1061726-A (GB)
Title: Thermoplastic polymeric compositions
IPC: C08L25/00
Filed: 1963-08-23
Abstract: Thermoplastic compositions comprise an intimate mixture of 30-95 parts of (A) a hard copolymer obtained by polymerizing a mixture containing at least 60% by weight of one or more aromatic vinylidene monomers, and 5-70 parts by weight of (B) a rubbery graft copolymer prepared by grafting (i) a mizture of vinylidene monomers containing at least 60% by weight of one or more aromatic vinylidene monomers on to (ii) a latex of a rubbery copolymer containing 85-95% by weight of at least one conjugated diene and 5-15% of one or more comonomers, (i) and (ii) being present to such an extent and are of such constitution that the graft copolymer (B) contains 30-50% by weight of diene units, 5-35% by weight of nitrile monomer units and 15-65% by weight of vinylidene aromatic units.  Vinylidene aromatic monomers specified are styrene, alphamethyl styrene, alkylstyrenes and halostyrenes. Dienes specified are butadiene, isoprene and chloroprene.  Nitrile monomers specified are acrylonitrile, methacrylonitrile, chloroacrylonitrile and vinylidene cyanide. Other monomer units which may be present in the polymeric materials are those derived from acrylic, methacrylic, itaconic and maleic acids and their esters.  The examples describe polymerizing styrene and acrylonitrile in a latex of a butadiene-styrene copolymer with the aid of potassium persulphate, and blending the resulting graft copolymer with styrene-acrylonitrile copolymers and a styrene-alpha-methylstyrene-acrylonitrile terpolymer.
Patent GB-173678-A (GB)
Title: Buttonhole cutting and stitching machine
IPC: D05B73/12
Filed: 1920-11-29
Abstract: 173,678. Fairweather, W., (Singer Manufacturing Co.). Nov. 29, 1920. Button-hole sewing-machines; button-holes, cutting.-The work-clamp is lifted clear of the throat-plate in being shifted from stitching position to cutting position. The machine is arranged for stitching button-holes parallel with the edge of the material, as with the back buttonholes in collars, the feed of the material is transverse to the machine arm and the movement to cutting position is transverse to the button-hole slit. The usual pair of pivoted clamping arms 54, Fig. 2, carry a single upper clamping-member 49 which is loosely secured to them by screws 56, 57. When a latch 59 is opened, the member 49 can be swung about the screw 56 to expose the throat-plate. The lower clamping-member comprises two plates 24 of a known form which are kept in contact with one another at all times by springs 44. The plates 24 are cut to provide an opening 48, Fig. 3, for the throat-plate 22 and support the work on all sides of the button-hole during stitching and one plate has an opening 50 for the throat-plate during cutting. The usual rod 40 upon which the clamps slide laterally, in this case to effect the feed, is carried by short links 38, Fig. 4, pivoted at 37 on fixed supports 36. When the clamps are moved rearwardly to bring the work to cutting position, the links 38 cause the plates 24 to rise into the position shown in dotted lines so as to clear the throat-plate and then to return into the same place; the throat-plate being received by the opening 50. The cutters are at the same time moved forwardly into cutting position. The cutters, which remove a narrow strip of material, comprise an arcuate plate punch 82 concentric with the cutter pivot 76 and a die 87, and they are mounted upon upper and lower cutter levers 74, 75. The material pressed through the die falls either into a trough 109 or an annular dish 112 and is swept by a brush 115 on the lower cutter lever and a brush on the rotary mount of the lower stitching instrumen. talities and falls through a gap in the dish into a receptacle. The back of the punch 82 abuts against a shoulder 83, Fig. 4, which may be pro. vided by the end of an adjustable plate secured upon the cutter lever. Other parts of the machine are substantially as described in Speci. fications 15049/15, 141,905, and 146,587.
Patent GB-521461-A (GB)
Title: Improvements in cutter bars for agricultural mowing machines
IPC: A01D34/16
Filed: 1938-11-18
Abstract: 521,461. Mowing-machines. BAMFORD, C. J., and BAMFORD, H. V. Nov. 18, 1938, No. 33609. [Class 6 (iii)]  Those knife sections 16 on the reciprocating-bar 15, which come below the clips 12 fixed to the stationary bar 10 are formed with rearward extensions 18, which bear on stepped portions 14 of wearing-plates 13, fixed between the clips and the bars 10, all other knife sections having rear edges which terminate in front of the forward edges of the wearing plates. Each knife section having an extension 18 may be formed with a thicker portion, or have an additional plate 22 attached, to engage in recessed portions 20 of the clips.