baber/WOPTO huggingface dataset:
Patent GB-840273-A (GB)
Title: Improvements relating to stair carpet fastenings
Inventor: MCDONALD COLIN STEWART
IPC: A47G27/06
Filed: 1957-11-13
Abstract: 840,273. Stair-carpet fasteners. MONO CURTAIN RAIL CO. Ltd. Nov. 10, 1958 [Nov. 13, 1957], No. 35331/57. Class 52(5) A stair-carpet fastener comprises a pair of brackets 10 each having a projection 103 overlying the edges of the carpet, and a retaining bar 13 fitting between the projections and having sleeves 14 which are slidable to engage socketwise with the projections, the sleeves being of complementary shape to the cross-section of the bar and projections. Each sleeve has a rim 142 to aid manipulation and is arrested by the projecting parts of the part 102 of the bracket. The fastener is made partly or entirely of plastic or of metal, plastic-coated or otherwise finished in the desired colour. The bar 13 is preferably a hollow plastic moulding reinforced by a metal strip 131. The cross-section of the bar &c. may be other than triangular.
Patent GB-1120285-A (GB)
Title: Filing machine
IPC: B23D67/00
Filed: 1966-08-08
Abstract: 1,120,285. Filing machine. SCHMID & WEZEL. 8 Aug., 1966 [30 Sept., 1965], No. 35368/66. Heading B3L. In a reciprocatory filing tool the file 10 is held by a reciprocable and rotatable chuck 8 having an axially extending stem 7 which is reciprocated by means of a drive eccentric 4 which operates in a recess 6 in the periphery of the stem 7; the eccentric 4 is mounted at an angle, preferably a right angle, to the axis of the chuck on a spindle which is supported on antifriction bearings e.g. ball bearings, and is driven e.g. by an air motor 3. A control sleeve 13 which surrounds the chuck can be located by a pin 21 in any one of three control positions which: (a) allows completely free rotation of the chuck 8 and tool 10, (b) allows limited angular movement which can be controlled manually by a grip member 15 on the sleeve or (c) locks the chuck against rotational movement. The chuck 8, Fig. 6, is of a quick release type and includes a member 25 having a bore 29 for the tool and which is spring loaded by spring 34 to a position in which one or more balls 32 are pressed by the conical surface of a recess 30 in an outer sleeve member 27, to a tool gripping position. Pressure on the end portion of the chuck allows the balls 32 to move into the conical recess 30 to release the tool. In a modification (Fig. 8, not shown) the recess for the drive eccentric comprises an annular groove.
Patent GB-837977-A (GB)
Title: Improvements in or relating to television scanning devices
Inventor: PHILLIPS PETER HAROLD
IPC: H01J29/76
Filed: 1957-11-21
Abstract: 837,977. Electron beam deflecting apparatus. PLESSEY CO. Ltd. Nov. 21, 1957 [Nov. 21, 1956], No. 35582/56. Class 39(1). A scanning device for cathode-ray tubes comprises a pair of saddletype coils for line-scanning and a castellatedtype pair of frame scanning coils provided on an annular ferromagnetic yoke. This yoke comprises two similar halfyokes, each of which has, at its inner circumference, axial grooves for accommodating the frame-scanning coils, sepraated by a substantially smooth cylindrical surface pan, the width of the smooth pan between the two sides of each frame coil being more than twice the width of each groove. As shown, the yoke consists of two identical half-yokes 10 held together by clips 9 as described in Specification 837,981. The limbs of the line coils 4 are spread out over the smooth cylindrical surface parts 11, the windings of the two coils being preferably separated by partitions 14 located in slots 13 of the yoke, while the outer limbs of the windings 4 are held in position by projections 15 of the yoke. Part of the screen end of the yoke is removed at the bottom of each groove 12 to allow the frame-coil ears to be wrapped round the front end of the yoke outside the flared part of the line-coil ears. The yoke is preferably made of moulded laminated flake ferro-magnetic material but may consist of ferro-magnetic powder or ferrite material.
Patent GB-814421-A (GB)
Title: Improvements in and relating to the production of cathode ray tubes
Inventor: LAKE ROYSTON ERNEST WALTER
IPC: H01J9/22
Filed: 1956-11-22
Abstract: 814,421. Luminescent screens. MULLARD Ltd. Dec. 13, 1957 [Nov. 22, 1956], No. 35758/56. Class 39(1). In a method of manufacturing a cathode-ray tube which has a luminescent screen of zinc cadmium sulphide by depositing the phosphor from a suspension containing an organic binder, the binder is afterwards removed by baking the screen in a stream of air which contains a small percentage of sulphur dioxide, e.g. 0À5 to 1À0 per cent. by volume. This is to prevent the formation of cadmium sulphide and consequent discoloration of the screen. Suitable binders mentioned are nitrocellulose and a polymethacrylic lacquer.
Patent GB-979188-A (GB)
Title: Improvements in or relating to the production of articles on straight bar knitting machines
Inventor: MATTHEWS DENIS
IPC: D04B11/22
Filed: 1962-09-21
Abstract: 979, 188. Knitting machines. MATTHEWS & BIRKHAMSHAW Ltd. Sept. 18, 1963 [Sept. 21, 1962], No. 35938/62. Heading D1C. In a method of producing tuck patterned fabric on a straight bar knitting machine comprising forward and rearward movement of an auxiliary tricked presser bar 6 underneath the sinker bar 3 to move into alignment with tricks in the main presser edge on sinker bar 3 for plain stitch courses and out of alignment therewith for courses containing tuck stitches as in Specification 945,472 the needles are controlled to knit one tight quality for the plain courses and another slacker quality for the tuck stitch courses. For plain knitting the segments 39, 116 of top and bottom control discs 38, 114 are operative but when the tuck patterned fabric is to be knitted to the plain parts 38a, 114a of the discs are operative to control the actuation of the axuiliary presser bar 6. A larger stitch quality cam (not shown) is brought into operation for the production of courses containing tuck loops to provide additional needle lowering motion giving a longer draw.
Patent GB-1391553-A (GB)
Title: Process for the manufacture of titanium dioxide pigments
IPC: C01B13/22
Filed: 1972-08-01
Abstract: 1391553 Vapour phase TiO 2  process SOC ITALIANA RESINE SIR SpA 1 Aug 1972 [17 Nov 1971] 35965/72 Heading C1N TiO 2  is produced by vapour phase oxidation of TiCl 4  in the presence of a hydrocarbon complex of AlCl 3  as nucleant and rutilizing agent. The complex may be supplied as a vapour or atomized liquid, preferably mixed with the TiCl 4 . The hydrocarbon may be toluene, ethyl, butyl or isopropyl benzene, alkyl C 12-16  benzenes, or polyalkyl benzenes, or may be spent catalyst sludge from aromatic hydrocarbon alkylation using AlCl 3  as catalyst. The product has a particle size of À15-0À35 Á.
Patent GB-424802-A (GB)
Title: Improvements in or relating to light controlled devices or apparatus
IPC: B44B1/02
Filed: 1933-12-23
Abstract: 424,802. Controlling apparatus by light. DORN, J., 4, Howland Street, DUITS, C. E., 6, Duke Street, and GORE, A., 21, Bolton Studios, Redcliffe Road, Chelsea, all in London. Dec. 23, 1933, No. 36275. [Class 40 (v)] [See also Group XXXVIII] In apparatus controlled by variations in an electric current produced by controlled variations in intensity of light falling upon a light-sensitive substance, a translucent element moulded, cast, or otherwise formed of varying thickness from point to point in predetermined manner is traversed across the light beam to produce the desired modulation in light intensity, and thereby of the output current. For example, a replica in paraffin wax, celluloid, gelatine, or other translucent material is used for modulating the light intensity for controlling a cutting-machine to reproduce a three-dimensional object. In the cutting-machine shown in Fig. 1, a flat transparency 2 of varying thickness from point to point, according to the shape chosen, is traversed past a slot 11 between a light source 8 and a light-sensitive element 9 associated with a thermionic amplifier 14. In the arrangement shown in Fig. 2, a transparent replica 2 is formed with a cylindrical bore to receive a tube 10 containing a light source 8 for action through slits 11, 13 upon a photo-electric cell 9. The replica is moved on the tube 10 so that it is traced spirally by the light source, and the intensity of the light reaching the photo-electric cell is modulated according to the thickness of replica traversed, whereby work similarly moved in a cutting-machine is reproduced to the same external shape.
Patent GB-929583-A (GB)
Title: Improvements in high speed spindles
Inventor: SCRAGG FREDERICK
IPC: D02G1/06
Filed: 1960-10-22
Abstract: 929,583. False twist tube mounting. ERNEST SCRAGG & SONS Ltd. Sept. 29, 1961 [Oct. 22, 1960], No. 36326/60. Class 120 (2). [Also in Groups XXIV and XXXIV] A false twist tube 11 is located and urged against its driving disc 12 by two pairs of idler rollers 13, 14 and 15, 16 while axial movement of the tube is prevented by flanges 25, 26 on either end thereof which flanges engage the outer surfaces of the idler rollers. The spindle 17 of disc 12 also carries a roller 20 and is mounted in a frame 18 urged by a spring 22 towards a driving belt 21 so that roller 20 is forced into driven contact therewith. A spring 24 biases the idler rollers so that tube 11 is pressed against the surface of disc 12 which is preferably covered with polyurethane; alternatively disc 12 may be made of nylon while the idler rollers may be made of steel or nylon. Frame 18 may be manually moved in direction A so that roller 20 is out of engagement with the driving belt 21 in which position it may be held by a catch. In a further form three pairs of idler rollers are provided to locate and urge two twist tubes against a single driving disc. In this case a common heating channel may be provided for both the yarns. Specification 519,995 is referred to.
Patent GB-1202168-A (GB)
Title: A sewing machine provided with a pressure lubrication system
IPC: D05B71/00
Filed: 1968-07-30
Abstract: 1,202,168. Lubricating. VIRGINIO RIMOLDI & C. S.p.A. 30 July, 1968 [13 Sept., 1967], No. 36346/68. Heading F2A. [Also in Division D1] A sewing machine is provided with a lubrication system comprising a pump unit 21, Fig. 1; a delivery pipe 26, which is connected to a dome 27 of transparent material; a pressure switch 39, which is connected by a pipe 40 to the delivery pipe 26 and which is opened by the pressure of the lubricant passing through the delivery pipe, the switch 39 being closed by spring means when the pressure in the delivery pipe 26 becomes a pre-determined minimum value. The closing of the switch lights a warning lamp 45. A delay is provided to prevent the lamp 45 from lighting during short interruptions of operation of the sewing machine. The switch 39 comprises a support 46, Fig. 3, of insulating material and a cover 47 which are connected together by means of rivets 48. A hollow cylinder 49, Fig. 6, is positioned between the support 46 and the cover 47 and contains a piston 50, the diameter of which is made small enough to allow lubricant to pass between the cylinder 49 and the piston. The cylinder 49 has a closing diaphragm 51, having an integral pipe 52 connected to the pipe 40 and having an entrance aperture 53 internally closed by a valve 54. The electric circuit for the lamp 45 comprises a bulb holder 58, electrical terminals 63, 64, the cylinder 49, the piston 50, a contact 67 which is mounted on a piston-rod 57 of the piston 7, a plate 66 and cables 70, 71. The pressure of the lubricant forces the piston 50, Fig. 6, against a wall 55, thus closing a square-shaped aperture 56 therein and disengaging the contact 67 from the plate 66. When the pressure of the lubricant is in sufficient to compress a spring 73 which is  located between an end-wall of the piston and the wall 55, the piston is urged towards the diaphragm 51, the valve 54 is closed, and the movement of the piston is retarded by means of the lubricant in the cylinder 49 slowly escaping therefrom through the squareshaped aperture 56 in the wall 55. When the cylinder is empty, the contact 67 engages the plate 66 and the lamp 45 indicates that the pressure of the lubricant is too low. A filter 29 is provided for the lubricant which is returned to a reservoir 20, and a felt 32 and a pipe 34 connect to the pump means 21 to recover lubricant from a head 31 of the sewing machine.
Patent GB-1486494-A (GB)
Title: Shock absorber pad of moulded fibres for use in the drop casting of ingots
IPC: B22D7/12
Filed: 1975-09-05
Abstract: 1486494 Casting metal Y GUEGAN 5 Sept 1975 [16 Sept 1974] 36597/75 Heading B3F A shock absorber pad of moulded fibres for preventing of splashing of molten metal during the drop casting of ingots comprises a plate of moulded fibres having an assembly of cups 1 disposed in files and rows connected by a web 4 uniting their upper edges, the web having perforations 5 in the portions between the cups. The cups 1 have truncated walls 2 and bottoms 3 some of which may be perforated. The web joins the upper edges of the cups and has semcylindrical concave ribs 6 to increase the rigidity of the pad and perforations 5. The web is thick to offer longer resistance to combustion and the perforations permit gas to escape during casting. One row of cups may be smaller then the others so as to fit in a row of an adjacent pad. The pad also acts to reduce erosion of the bottom of the mould and a reducing agent may be disposed in the cups, the agent rising with the level of the molten metal. The pad is moulded by filtration through a screen and may contain combustion retarding agents.
Patent GB-327950-A (GB)
Title: A new and improved flooring
IPC: C04B28/32
Filed: 1928-12-12
Abstract: 327,950. Pia, C., and Polini, G. Dec. 12, 1928. No Patent granted (Sealing fee not paid). Plastic compositions containing oxychlorides.- A composition for making floors, tiles and the like comprises 7 per cent magnesia, Italian type, 40 per cent eubea, 2 per cent soluble silicate, 3¢ per cent chalk, 4 per cent white marble powder, 17¢ per cent white wood flour, 5 per cent colour, 20 per cent solution of magnesium chloride having a specific gravity of 1.171, and 1 per cent boiled linseed oil. Imitation mosaic work or fancy designs may be put down to form a continuous flooring, and spaces may be cut out and filled with composition of different colours. Pieces of different colours may be worked together to produce marble graining or other effects.
Patent GB-905585-A (GB)
Title: Fluid pressure control valve device
IPC: F16K31/363
Filed: 1960-10-25
Abstract: 905,585. Fluid-pressure brakes. BENDIXWESTINGHOUSE AUTOMOTIVE AIR BRAKE CO. Oct. 25, 1960 [Dec. 14, 1959], No. 36661/60. Addition to 836,870. Class 103 (1). [Also in Group XXIX] A fluid-pressure control device for a brake system comprises a body having a stepped bore forming a smaller diameter inlet chamber 16, communicating with an inlet 12, connected to a main reservoir, and a larger diameter control chamber 18 communicating with a control port 14, leading to a protection valve such as in Specification 683,350. A step piston member 20 is slidable in the body bore and has an axial bore 36 which receives a member 90 having a lower exhaust orifice 40 and passageway 104, the member being loaded by a spring 96 to maintain its upper end in contact with a fixed member 94. A disc valve member 46 is loaded towards the closed position with respect to a port 38 such that with the piston in the position shown, the inlet 12 is closed from the control port 14 which is open to exhaust through orifice 40. When pressure is applied to the inlet 12 it acts on the lower end of the piston to raise this piston against a spring loading 35. The disc valve moves with the piston until it seats on orifice 40 after which the valve opens port 38 admitting pressure fluid to the control chamber and port 14. The pressure in the control chamber acts on the area 30 of the piston member to cause rapid upward movement of the piston. When the pressure in the inlet is reduced, the piston moves downwards until the disc valve again closes port 38 and with the opening of orifice 40 pressure in the control chamber flows to exhaust, causing rapid downward movement of the piston to its lower position. The member 94 carries a spherical member 108, cut away at four sides, to provide spherical bearing surfaces for plate members 110, 112, the member 110 supporting one end of the spring. Such an arrangement allows for slight misalignment and seating of the spring if the end does not present a plain surface normal to the spring axis.
Patent GB-1120474-A (GB)
Title: Polyolefins, and polyvinylhalide-polyolefin blends and graft copolymers
IPC: C08F255/00
Filed: 1965-08-26
Abstract: Polyolefins in finely divided form are produced by mixing the polyolefin with vinyl chloride or bromide monomer, heating the resulting mixture to 75 DEG  to 125 DEG  C. and cooling to below 75 DEG  C. before any substantial polymerization has taken place. Specified polyolefins are C2- 8 alkenes.  Minor proportions of other olefinically unsaturated monomers, e.g. vinyl esters, styrene, acrylic esters, allyl chloride, methallyl acetate, vinyl ketones and vinyl ethers, may also be present.  The polyolefin may be recovered by evaporation of the monomer or by filtration or centrifugation, and the finely divided polyolefin blended with vinyl chloride polymers. Alternatively, the vinyl halide monomer may be graft polymerized on to the finely divided polyolefin, e.g. in aqueous suspension with or without the addition of further monomers.  In examples, finely divided polyolefins are prepared by heating (I-IV and VI) polyethylene and (V) polypropylene with vinyl chloride; and graft copolymers are prepared by polymerizing vinyl chloride on finely divided (VII, IX, XI and XVII) polyethylene and (VIII) polypropylene in water in the presence of methyl hydroxypropyl cellulose and lauroyl peroxide. In Example XIII, vinyl acetate is added before polymerization.  In further examples, the graft copolymers are blended with dibutyl tin maleate, dibutyl tin dilauryl mercaptide and polyvinyl chloride, polyvinylidene chloride and vinyl chloride/vinyl acetate copolymers.  The products may be used to make structural elements such as roofs and sidings, pipes and wire coatings.
Patent GB-1149771-A (GB)
Title: Method for the manufacture of thermoplastically processible polyurethane elastomers of high heat stability
IPC: C08G18/00
Filed: 1966-08-17
Abstract: 1,149,771. Polyurethanes ELASTOMER A.G. 17 Aug., 1966 [30 Aug., 1965], No. 36825/66. Heading C3R. Polyurethane elastomers are prepared by reacting in a single stage, a hydroxylpolycaprolactone prepared by reacting an epsiloncaprolactone and a glycol and having a M.W. between 1000 and 3000, a glycol of the formula HO-(CH 2 ) n -(O) m -R-(O) m -(CH 2 ) n -OH wherein R is a phenylene or naphthylene radical, n is an integer from 1 to 12 and m is 0 or 1, and 4,4<SP>1</SP>-diphenylmethane diisocyanate, or a homologue or substitution product thereof. The diisocyanate may be diphenylmethane-4,4<SP>1</SP>- diisocyanate itself or diphenyl-dimethylmethane- 4,4<SP>1</SP>-diisocyanate or diaminophenyl methane- 4,4<SP>1</SP>-diisocyanate. In examples the glycol used is hydroquinone diethylene glycol ether. Trimethylolpropane may also be added to the reaction mixture.
Patent GB-1194585-A (GB)
Title: Character Recognition System
IPC: G06V30/224
Filed: 1967-08-11
Abstract: 1,194,585. Character recognition. COLUMBIA CONTROLS RESEARCH CORP. 11 Aug., 1967 [30 Aug., 1966], No. 36979/67. Heading G4R. A character recognition system for reading characters having either long or short intervals between vertical strokes, scans the character to set a two-state storage means into its two stages in response to strokes and intervals respectively, selected states of the storage means being stored in further storage means to provide a coded representation of the character. In Fig. 1, optical or magnetic sensing at 21 of a character in the CMC7 font (i.e. having a characteristic pattern of wide and narrow gaps between seven vertical strokes forming the character) produces pulses at 31, 32 in response to leading and trailing edges of the strokes respectively to set to 1 and 0 (respectively) a flip-flop 35. Setting of flip-flop 35 to 1 pulses one-shot 46 which after a delay equal to half a stroke width produces a shift pulse on line 45 to enter the flip-flop state into a shift register 41. One-shot 48 (having a delay equal to a stroke width plus half a narrow inter-stroke gap) is also pulsed and itself pulses one-shot 49 (having a delay equal to half a stroke width plus half a narrow inter-stroke gap). The output from one-shot 49 produces another shift pluse unless the flip-flop 35 is at 1 at the time. Thus for each narrow gap a 1 is stored in the shift register and for each wide gap 10 is stored. After the end of the character, a one-shot 90 permits a decoder 43 to decode the shift register contents to produce binary and/or decimal indications of the character identity. In the case of optical sensing the photo-cell may control a monostable via an amplifier (and optionally via a bi-stable also), the monostable replacing the flip-flop 35. Reference has been directed by the Comptroller to Specification 1,128,594.
Patent GB-342443-A (GB)
Title: Improvements in or relating to coin-controlled apparatus
IPC: G07F5/02
Filed: 1929-12-03
Abstract: 342,443. Coin - freed apparatus. GREENWALL, M., Long Copse, Bookham, Surrey. Dec. 3, 1929, No. 37037. [Class 27. ] Actuating and controlling mechanism.-In coincontrolled apparatus in which a movable control member connected operatively with a mechanism of the apparatus is moved by an independently movable operating member, both members being gravity or spring influenced independently to tend to return to neutral positions, the control member 11, Fig. 2, which is described in Specification 329,279, [Class 27, Coin-freed apparatus &c.], and is moved by an operating member 17 having a handle 18 and a lateral lug 16, Fig. 1, to engage a drive member 15 on the member 11, is provided with a notch 19 which is engaged by a tooth 22 on a detent 20, when the control member is in its operative position. The detent is pivoted at 21 and holds the control member in . its operative position long enough for the associated mechanism to be actuated, until it is raised through the engagement of its free end 24 by another lug 23 on the member 17 during the return of this member. The member 11 is then returned to neutral position by its spring. A full forward stroke of the member 17 from its neutral position is ensured by a pawl 26 engaging ratchet teeth 25 thereon, the pawl being pivoted on the same axis 21 as the detent 20 and having a pin 27 engaging a cam slot 28 in a plate 29. The plate 29 is mounted to rock on the axis of the control member, its movement being limited by a screw 39 passing through a slot 40 in the plate 29. A spring washer 41 compressed by a nut 42 provides a frictional resistance to its movement. Pins 32, 33 extend from the member 17 through actuate slots 30, 31 in the plate 29 so that, when the member 17 reaches the end of its forward movement, the pin 32 engages an end of the slot 30 and moves the plate 29 thereby moving the cam slot 28 to raise the pawl 26 out of engagement with the teeth 25. When the member 17 is returned to its neutral position, the pin 33 engages the end of the slot 31 to return the plate 29 and allow the pawl 26 to drop back to its initial position. The governing mechanism described is stated to be particularly applicable to the control and operating mechanism described in Specifications 321,870, 323,081 and 329,279, [all in Class 27, Coin-freed apparatus &c.].