baber/WOPTO huggingface dataset:
Patent GB-321891-A (GB)
Title: Improvements in display-stands
IPC: A47F5/01
Filed: 1929-02-11
Abstract: 321,891. Larsen, K. B. Feb. 11, 1929. Rack stands.-A display stand consists of a pair of upright members between which a unit embodying a series of shelves can be inserted with the shelves horizontal or inclined as required. The shelves 9 are pivoted at each end to a pair of angle irons 12 and the upright members of the stand each consist of a pair of parallel standards 2 the arrangement being such that when the unit is jammed between the upright members with the free flanges of the angle irons between the parallel standards as shown at A, Fig. 5, the.shelves are inclined. When the iron angles are arranged with their free flanges outside the parallel standards as shown at B, Fig. 5, the shelves are horizontal. The uprights are adjustably connected by cross-bars 6.
Patent GB-1169587-A (GB)
Title: Improvements relating to Domestic Fireplaces
Inventor: BIBBY ROY TULLOCH
IPC: F24B1/19
Filed: 1967-01-31
Abstract: 1,169,587. Solid fuel fireplace. BIBBY FIRES Ltd. 24 Jan., 1968 [31 Jan., 1967], No. 4607/67. Heading F4W. Primary air supplied below the grate of a solid fuel fireplace is preheated in a chamber 24 below or projecting a little above the floor of the fireplace. A two-speed fan 48 mounted in a recess 41 in the chimney breast supplies air to the chamber 24 through a flexible tube 39 and a backward extension 37 of the chamber 24 having an inlet at either side, one of which may be blanked off. The air, heated by the ashes in an ashpan resting on the floor of the fireplace and in the chamber 24, passes up an air box 33 in the cheeks of the fireplace, and down over a curved baffle plate 32 to an outlet below the grate 17. The baffle plate 32 prevents ash from the ash pan falling into the preheater chamber 24. The fan 42 may be detachably mounted in the recess 41 by engagement with an adapter fixed to the end of the flexible tube 39.
Patent GB-556250-A (GB)
Title: Improvements in typewriting machines
IPC: B41J29/50
Filed: 1942-04-08
Abstract: 556,250. Typewriters. ROYAL TYPEWRITER CO., Inc. April 8, 1942, No. 4620. Cor vention date, April 9, 1941. [Class 100 (iv)] A single latch-releasing member or bail selectively releases the two margin stops provided by Specification 534,975. The margin stops G, Fig. 5, adjustable along the rail H, have latches 22 released by rollers 29, 29<SP>1</SP>, the roller 29 on one stop being raised and the rloler 29<SP>1</SP> on the other stop being depressed by a single bail actuator J, which is carried by arms 43 pivoted to the carriage. The margin stops G when released are urged towards the centre stop 11 by an elongated spring I provided with a housing 40. The margin stops may have finger-pieces 30, 31 for direct manual release. The bail J is lowered by a handlever 47, Fig. 91, pivoted at 48 and provided with a cam slot 52 which engages a pin 50 fixed to one end of the bail. The lever 47 also has a seat 49, which normally supports the bail in neutral position, and an ear 77, which prevents operation of the lever 47 when the bail is raised so as to insert a stop 78 in the path of ear 77. The bail is raised above neutral position by a hand-lever, similar to lever 47, at the other end of the bail and provided with similar means to prevent its actuation when the bail is lowered. In a modification, Fig. 15, the bail N is actuated by push keys in the front wall of the machine. These keys rotate shafts 194 which carry levers 197 in engagement with pins 174 mounted at the ends of links 164. These links are carried by parallel links 166, 167 and are offset at 165a to clear the escapement of the tabulating mechanism. At their upper end, the links 164 have a notch 164 to receive a projection 163 on the bail N, which is pivoted by arms 160 at 162. A push-key is provided on each side of the machine for the corresponding margin stop.
Patent GB-1012361-A (GB)
Title: Process for the polymerization of vinyl compounds
Inventor: SINGER REGINALD DAVID
IPC: C08F218/04
Filed: 1962-02-07
Abstract: Vinyl esters of saturated aliphatic monocarboxylic acids are polymerized with or without one or more monomers copolymerizable therewith in the presence of a polymerization catalyst, water, and 0.1 to 0.5% by weight of the monomers of a water-soluble organic surfaceactive agent containing a sulphonate group, 0.3 to 1.5% by weight of the monomers of a condensate of 4 to 40 mols. of ethylene oxide with one mol. of an alkylphenol having 8 to 12 carbon atoms in the alkyl group or one mol. of a fatty acid containing 12 to 18 carbon atoms in the molecule, and 0.15 to 1% by weight of the monomers of a block copolymer of ethylene oxide and propylene oxide containing up to 40% by weight of ethylene oxide.  Specified vinyl esters are the acetate, propionate, butyrate and valerate, and specified comonomers are 2-ethylhexyl acrylate and trans-dichlorethylene. Preferred catalysts are alkali metal and ammonium persulphates, and the medium may also contain buffers, e.g. alkali metal and ammonium bicarbonates.  Specified sulphonates are sodium dodecylbenzene sulphonate, sodium methyl oleyl taurine and sodium dioctyl sulphosuccinate. Specified phenols are p-octylphenol and p-nonylphenol, and specified fatty acids are oleic, stearic, palmitic, and lauric acids. Examples describe the polymerization of vinyl acetate in the presence of ammonium persulphate and sodium bicarbonate using as emulsifiers (I) sodium dodecylbenzene sulphonate or sodium methyl oleyl taurine, condensates of nonylphenol with 20 mols. of ethylene oxide or of octylphenol or nonylphenol with 4, 9, 12, 16, 30 or 40 mols. of ethylene oxide, and a block copolymer of ethylene oxide and propylene oxide; and (II) sodium dodecylbenzene sulphonate, condensates of nonylphenol with 20 mols. of ethylene oxide or of linseed oil fatty acids with 4, 12, 16, 20 and 30 mols. of ethylene oxide, and block copolymers containing 10, 20, 30 and 40% by weight of ethylene oxide.  The resulting polymer dispersions may be compound with plasticizers, stabilizers, thickeners, pigments, extenders and coalescing agents to give emulsion paints.
Patent GB-1139412-A (GB)
Title: Polyester/polycarbonate block copolymers
Inventor: JAMES EDWARD ARNOLD
IPC: C08G63/64
Filed: 1965-02-03
Abstract: 1,139,412 Polyester/polycarbonate block copolymers. I.C.I. FIBRES Ltd. 11 Jan., 1966 [3 Feb., 1965], No. 4636/65. Heading C3R. Elastomeric block copolymers comprise (a) 55 to 70% by weight of polyester blocks of average molecular weight 1000-5000 and consisting of a multiplicity of divalent aliphatic or cycloaliphatic groups linked together by carboxylate linkages and (b) 30 to 45% by weight of polycarbonate blocks of average molecular weight 400-4000 and consisting of a multiplicity of aromatic nuclei linked together by carbonate linkages. The copolymers may be made by (a) reacting a haloformate of the polyester with an hydroxy terminated polycarbonate, (b) reacting an hydroxy-terminated polyester with a dihydric phenol and a dialkyl or diaryl carbonate or (c) by the method disclosed in Specification 1,139,413. Reactants specified are the same as those specified in Specification 1,139,413.
Patent GB-1198651-A (GB)
Title: Olefine Copolymers Containing Polar Groups and Process for Their Preparation.
Inventor: CLARK KEITH JASPER
IPC: C08F10/14
Filed: 1967-01-31
Abstract: 1,198,651. Organo-aluminium compounds. IMPERIAL CHEMICAL INDUSTRIES Ltd. 2 Nov., 1967 [31 Jan., 1967], No. 4712/67. Heading C2J. [Also in Division C3] An organometallic compound is obtained by reaction between (i) a compound AlR 1 R 2 R 3  or AlR 1 R 2 Y (where R 1 , R 2 , R 3  are alkyl or aryl groups and Y is Cl or Br) and (ii) a polar monomer CH 2 =CH(CH 2 ) n CH(X)R (where n is more than 2 and X=NH 2 , NHR<SP>1</SP>, OH, CN, CO 2 H, CONH 2 , CONHR<SP>1</SP>, CO 2 R<SP>1</SP> CHO, COR<SP>1</SP>, SH, SO 3 H, or an aromatic nucleus bearing such groups, R is hydrogen, alkyl or aryl, and R<SP>1</SP> is alkyl or aryl). Types of reaction mentioned are: -OH+A1Et 2 Cl-> -OAl(EtCl)+C 2 H 6  -CN+AlEt 2 Cl-> -C(Et)=N.Al(EtCl) -COCH 3 +AlEt 2 Cl-> -CH(CH 3 ).OAl- (EtCl) + C 2 H 4 . Specified polar monomers are undecylenol, undecylenic acid, undecenylamide. The compound may be made by reacting the components in a hydrocarbon solvent, using a molar ratio of (i) to (ii) of 1 : 1 to 3 : 1, at 60-150‹ C., and may be reacted with a Ziegler catalyst and an α-olefin to yield a copolymer of the olefin and polar monomer (see Division C3).
Patent GB-1055135-A (GB)
Title: Improvements in or relating to self-retaining electrical contacts for plug-and-socket connectors
IPC: H01R13/115
Filed: 1964-02-04
Abstract: 1,055,135. Two-part couplings. PLESSY-UK Ltd. Feb. 4, 1964 [Feb. 4, 1963]. No. 4728/64. Heading H2E. An electrical socket contact has three distinct sections, namely a contact-making section I, a retaining section II, and a terminal section III, the retaining section having resilient lugs 5 which engage behind a shoulder in the body, and the terminal member having at least two sets of gripping lugs 15 and 25, the whole assembly is made from at least two different pieces of metal. The contact section I is formed from a single stamping and comprises two pairs of resilient arms 1 and two portions 2 to make contact on the opposite faces of the inserted plug member and rigid (or less resilient) parts 4 and 40, which both give mechanical strength to the socket, part 4 also acting as a guide for the mating pin, and part 40 acting as a mechanical stop. This stamping may also provide one or more retaining fingers 33. The retaining section II has ears 7 to enable the lugs 5 to be withdrawn by a suitable tool. The terminal section III is formed of harder material than the contact section I, and may have projections to bite into the cable. Arms 15 are crimped or soldered on to the bared end of the cable and arms 25 crimped on to the cable insulation. The contact section I has an extension 11 which underlies the retaining section II and is brazed or welded thereto, and also continues under the terminal section III and is then bent back to lie along the bottom of the inside of section III where it is held by distortion by the projections on section III when the cable is crimped in position.
Patent GB-1457344-A (GB)
Title: Tonearm linear-drive apparatus
IPC: G11B3/085
Filed: 1974-02-01
Abstract: 1457344 Linear tracking system F NAGAMURA 1 Feb 1974 [10 Feb 1973] 04737/74 Heading G5R In an arrangement for guiding a pick up arm stylus S along a radius 38 of a record, the pick up arm 3 is mounted on a carriage 14 which is movable by gravitational force along an inclined track 20, 21. A rod 34 extends outwards from the pick up arm at its pivot point 30 and carries a magnet m with its polarity disposed to repel magnets M on two arms 41, 42 of a member 40 pivoted on the carriage. Arm 42 has an extension 44 which carries a brake pad 46 engageable with rail 20 of the track. When rotation of the record moves pick up arm 3 clockwise, magnet m rotates the member 40 anticlockwise releasing the brake whereby the carriage moves along the track until the arm is again tangential to the groove being scanned at which time member 40 has oppositely rotated to apply the brake. As described the record is rotated in a plane at a slight angle to the perpendicular but the arrangement can also be used with a record rotating in a near horizontal plane.
Patent GB-114651-A (GB)
Title: Improvements in Condensers or Coolers for Gases or Liquids.
IPC: F28B1/02
Filed: 1917-04-05
Abstract: 114,651. Stables, E. C., and Hall, J. & E. April n, 1917. Coil-tube apparatus; serpontine-tube apparatus. -In apparatus of the type comprising a coiled or serpentine tube arranged in a chamber or cell provided with partitions forming a circuitous passage, and particularly adapted for refrigerating plants, a number of distinct coils 5 in parallel layers are arranged in a shallow chamber having curved partitions 6, 6<a>, Fig. 1, or straight partitions 6<b>, Fig. 2, the coils being connected through common supply and discharge boxes 12, 13 within the chamber to single inlet and outlet pipes 12a, 13<a>. The fluid to be cooled passes through the coils and the water or other cooling fluid through the chamber, either in the same or in the opposite directions. Several chambers or cells may be employed. According to the Provisional Specification, the coils may have separate inlet and outlet pipes, and several chambers or cells may communicate with each other so that the cooling-fluid flows through them in series. Reference has been directed by the Comptroller to Specification 936/74, [Class 55 (1), Coking &c.].
Patent GB-507319-A (GB)
Title: Improvements relating to the treatment of tobacco leaves
IPC: A24B3/08
Filed: 1939-02-15
Abstract: 507,319. Mixing tobacco. MIERZANOWSKI, K. Feb. 15, 1939, No. 4984. [Class 86] Tobacco-mixing apparatus comprises an intermittently moving conveyer on which the leaves are placed, in desired proportions, in a single layer during a dwell period and are transferred, during a subsequent dwell period, to a continuous conveyer which feeds a cutter and the speed of which is such that the leaves are spread in a thick layer. The intermittently operated conveyer 1 comprises a belt fitted with plates, preferably perforated, and the transfer device comprises a closed box 4 having a perforated bottom carried by a link 6 one end of which slides in guides 7 while the other is mounted on a wheel 8 which is rocked by a gear 9 operated by a link 10. The box picks up the leaves by reduced air pressure and places them on the continuous belt conveyer 3 fitted with side belts 3a.
Patent GB-909569-A (GB)
Title: Improved control device for running continuous sheet material
Inventor: RICHARDS FRANCIS ARTHUR
IPC: B65H23/038
Filed: 1958-02-15
Abstract: 909,569. Automatic edge-guiding control. DUNLOP RUBBER CO. Ltd. Feb. 2, 1959 [Feb. 15, 1958], No. 4999/58. Class 38 (4). In a system for feeding sheet material symmetrically along a predetermined line of travel, a pair of edge detectors maintained symmetrically one on each side of the predetermined line move towards or away from each other until one of them locates an edge whereupon the detectors control the transverse position of the material to move it into symmetry with the detectors and hence the predetermined line. As described, photo-electric detectors associated with each edge of running continuous sheet material are movable in opposite directions transversely to the material by a lead-screw having oppositely screw-threaded ends. When the photo-electric cells PEC1, PEC2, Fig. 1, of both detectors are obscured by the material, relays R1, R2 associated with them are in the condition shown and a motor P driving the lead screw (not shown) moves the photo-electric cells outwardly. When one of the cells passes the edge of the material motor P stops and a motor Q starts to adjust chevron rollers (not shown) which centralize the sheet relative to the two cells. As well as maintaining the sheet central the system thus automatically spaces the detectors to suit varying widths of material. A continuously running motor R cam-operates contacts TD1, TD2 to make the operation of motors P and Q intermittent to avoid hunting. In a modification operation of the motors is made intermittent by electronic switches. The lateral position of the sheet may also be controlled by manual operation of push buttons PB1 and PB2 after opening a switch S2 to cause motor P to run the detectors to their outermost positions.
Patent GB-539674-A (GB)
Title: Improvements in or relating to the concentration of minerals containing tin
IPC: B03D1/02
Filed: 1940-03-18
Abstract: 539,674. Concentrating ores. MINERALS SEPARATION, Ltd. (Minerals Separation North American Corporation). March 18, 1940, No. 5001. [Classes 82 (i) and 82 (ii)] Minerals containing tin oxide and also other oxidized metalliferous minerals, particularly lead in the form of carbonate or sulphate, are treated for the separation of the tin oxide by sulphidizing the other minerals and removing them by froth flotation, the tailings thus forming a tin concentrate. In some cases part of the mineral may be sulphidized in a neutral or alkaline circuit and floated, further sulphidizing being then effected in an acid circuit followed by again floating, The sulphidizing agent may be sodium sulphide, and the operation may be effected in presence of sodium silicate.
Patent GB-990294-A (GB)
Title: Improvements relating to electric conductor systems with trolley collectors
IPC: H02G5/04
Filed: 1962-02-09
Abstract: 990,294. Collectors. ETABLISSEMENTS TOURTELLIER S.A.R.L. Feb. 9, 1962 [Feb. 11, 1961], No. 5036/62. Heading H2E. A compact electric conductor system with trolley collectors comprises an open casing 1 serving both to house conductors 4, 5 and as a covered track for collector trolleys 3, in which casing 1 there are conductors 4 arranged in a horizontal plane and others 5 disposed in vertical planes at the sides which are swept by contacts mounted on levers 10 under the pressure of springs 12, the levers 10 being mounted on trolleys 3. The conductors 4, 5 are held in claws 8 supported in insulators 6 fixed by bolts 7 to the top of casing 1 and the trolleys 3 have wheels 2. In a modification, Fig. 4 (not shown), the contacts on the levers consist of copper rollers surrounding selflubricating sleeves and on the outside of the levers are supplementary guiding rollers of insulating material.
Patent GB-974103-A (GB)
Title: Improvements in or relating to induction heating equipment
Inventor: WILKINSON WILLIAM DINSDALE
IPC: H05B6/04
Filed: 1960-02-12
Abstract: 974,103. Valve oscillating circuits; R.F. couplings. RADYNE Ltd. April 27, 1961 [Feb. 12, 1960], No. 5082/60. Headings H3F and H4A. Induction heating equipment comprises a valve oscillator feeding the primary of the output transformer which has a number of secondary windings which may be switched to compensate for variations in the magnetic characteristic of the load in the work circuit. In the embodiment, an oscillator 10 feeds the primary winding 12 of the output transformer. The output transformer has four secondary windings 14, 15, 16, 17 and one tertiary winding 18 which acts as the grid drive coil for the oscillator. The secondary windings 14, 15 are permanently connected in parallel as are windings 16, 17. The coupling of the oscillator to the load can be varied by means of switches 20, 21, 22. With switches 21, 22 closed all four secondary windings are in parallel across the tank circuit which consists of capacitor 24 and work coil 26. With switches 21, 22 open and switch 20 closed the secondary windings are in series parallel across the tank circuit. This switching arrangement is used to compensate for variations in the load in the work coil, i.e. when the temperature of the ferrous charge in the work coil exceeds the Curie temperature and therefore becomes non-magnetic. Specification 974,102 is referred to.
Patent GB-444046-A (GB)
Title: Improvements in or relating to door-closing and checking apparatus
IPC: E05F3/10
Filed: 1934-11-06
Abstract: 444,046. Door-operating appliances. JONES, W. H., 22, Pendennis Road, Wallasey, Cheshire. Nov. 6, 1934, No. 5087/35. Divided out of 444,829. [Class 65 (i)] A door closing and checking apparatus, shown in a spring-operated form and in the open position, comprises a reciprocable member or piston 1 connected between the door 6 and the frame 7 by a pair of arms or levers 10, 15 which are connected together by a universal joint 14, one arm 15 being connected to the frame 7 (or the door) by a second universal joint 18, while the other arm 10 is connected to the reciprocal member and is pivoted at 19 on an axis perpendicular to the hinge axis of the door and fixed relatively to the door (or frame), the arrangement being such that in the open position the arms 10, 15 are substantially at right angles and are approximately in a plane perpendicular to the hinge axis of the door. In the form shown, the piston 1 works in a check cylinder 3 carried on the door, and is connected by a hollow piston-rod 2 and links 21 to the lever 10 near the pivot 19 of the lever ; the piston is pressed downwards by a compression spring 4, and has a passage 25 with a check valve allowing free downward movement of fluid, while upward movement of fluid is only allowed by a valve 28, adjustable from the top of the piston-rod, and apertures 30 in the wall of the latter. In the position shown, the door is held open by the thrust of the links 21 passing above the pivot 19 of the lever 10 ; in closing, the lever 10 rises to the vertical and continues into an approximately horizontal position, the mechanical advantage increasing owing to the increasing radius of action of the thrust of links 21, once this thrust has passed below the pivot 19, and, in the latter part of the movement, to the increasing inclination of the links 21 to the piston rod 2. The arm 15 rises during closing to an inclined position and then falls to the horizontal, the arms 10, 15 being approximately in the same vertical plane in the closed position. The arm 15 is screw-threaded to allow adjustment of its effective length.
Patent GB-567981-A (GB)
Title: Improvements in or relating to control valves for vehicle servo brakes
IPC: F16K1/00
Filed: 1943-03-30
Abstract: 567,981. Pipe joints. JOHNSON, M. E. March 30, 1943, No. 5104. [Class 99 (i)] [Also in. Group XXXIV] In a control valve for fluid pressure or vacuum brakes in which a valve member c controls parts d, e, f leading respectively to the fluid pressure or vacuum pipe, the servomotor and and atmosphere, the ports d, e lead to sockets d<1>, e<1> in the valve casing which receive readily detachable pipe junction members h, i. A stud and bridge k may secure both members so that they can swivel in the sockets. The sockets may be on one side of the casing, as shown, or may be on opposite sides of the casing, the junction members being held by a common clamping means, acting in line with the axes of the sockets. Specifications 404,639, [Group XXXIV], and 542,543, [Group XXIII], are referred to.
Patent GB-197442-A (GB)
Title: Improvements in and relating to spring structures
IPC: F16F1/24
Filed: 1922-02-22
Abstract: 197,442. McFarlin, F., and Center-Fed Spring Insert Co. Feb. 22, 1922. Laminar springs.-Relates to laminated springs of the kind in which plates interposed between the leaves are provided with lubricating passages extending longitudinally to points near the ends of the plates, lubricant being fed to the passages from an opening formed centrally through the leaves and supplied with lubricant by a bolt extending through the opening and provided with a longitudinal duct and transverse passages. According to the invention, the bolt 14, Figs. 2 and 3, is provided with a check nipple 16 for the attachment of means, such as a grease gun 31, for introducing lubricant into it under pressure to be fed to the passages 10, Fig. 4, extending through the insert plates 9. The check nipple comprises a cap member 21<a>, screwed through on the bolt and having a chamber 22 communicating with the longitudinal duct 20 and passages 21 in the bolt, and a nipple member 24 screwed into the cap member and formed with an opening 26 in its outer end normally closed by a spring-pressed ball 27. The grease gun comprises a cylinder 32 in which operates a piston 33 actuated by a threaded member 34, and the cylinder is provided with flexible tubing 35 adapted to be connected to the check nipple by a bayonet-slot 37 in a nozzle 36 and a pin 29 on the member 24. Washers 17, 18 interposed between the spring and the bolt head 15 and cap member 21<a> seal the opening 19 through the spring, and clips 4, 5 surround the spring leaves and insert plates and hold them together.