baber/WOPTO huggingface dataset:
Patent GB-547134-A (GB)
Title: Improvements in or relating to hoods or covers for the cockpits of aircraft, motor boats and the like
IPC: B64C1/14
Filed: 1941-06-13
Abstract: 547,134. Covers for aircraft cockpits and motorboats. FAIREY AVIATION CO., Ltd., and WAKEFORD, D. June 13, 1941, No. 7504. [Classes 4 and 113 (i)] A hood or cover for an aircraft cockpit or motorboat is supported on rollers moving in horizontal guideways having downwardly curved forward ends of approximately one quarter of a circle, means being provided for moving the hood along the guideways and for locking it in its open and closed positions, the initial movement of the operating means in either direction serving to release the locking means. Rollers c, d at the lower end of arched supports a, b of the hood run in guides e, f having downwardly curved forward ends as shown. In the closed position of the hood the rollers are at the lower ends of the curved slots and are engaged by forked levers g, h pivoted at the centres of curvature of the curved parts. The two levers g, h are linked together by a rod j having a collar k acted upon by a spring. The hood is moved by an endless cable m operated by a hand-controlled drum p, part of the cable hassing over a grooved half drum integral with the lever h to actuate the levers g, h and move the rollers along the curved parts of the guideways. In the closed position of the hood the roller d is engaged by a spring-influenced pawl q, Fig. 2, and in the open position the roller c is engaged by a spring-influenced lever r. The pawl q and lever r have pins s, t engaged by a loop u on a rod v which is moved by a lever y to release one or other of the locking devices, when the lever y is moved by Bowden cables displaced in one direction or the other upon initial movement of the drum p while taking up the slack in the cable. This is effected by an arm on the spindle of the winding drum which engages pivoted pallets on a rocker arm connected to the Bowden cables and provided with spring means for locating it in its two alternative positions.
Patent GB-198806-A (GB)
Title: Improvements in variable speed mechanism
IPC: F16H61/664
Filed: 1922-03-15
Abstract: 198,806. Tanner, F. H. March 15, 1922. Variable-speed friction gearing comprises two rollers E, F slidable on a driven shaft B and adapted to be used alternatively for different ranges of speed. The roller E is directly splined on the shaft B and slides in engagement with three lateral discs G, H, I for a higher speed range. A direct drive is obtained when a clutch surface E<1> on the roller E is engaged with a like surface D<1> upon a roller D upon a driving-shaft D<11>. The roller F is connected to the shaft B through a reducing train F<1>, which slides with the roller. This reduced range of speeds is specially suitable for heavy vehicles. In reducing speed from direct drive, the roller E is moved from left to right of Fig. 1 until it comes opposite disc recesses H<1> &c., when the drive ceases. This movement is effected by a thread K<11> on a screwed rod E. The striking fork J of the roller F has a nut end which is being pressed by a spring V against the end of an opposite thread K<1>. The fork J is locked out of action by a slotted cam lever P, Figs. 1 and 3. When the roller E ceases to drive, a pin L acting on the cam of the lever P disengages that lever from the nut J, the spring V acts, and the roller F begins to move from right to left bringing in lower and lower speeds. Continued turning of a control wheel O brings the roller F also under the recesses H' &c. Each of the lateral discs H<1> &c. is provided with means for taking up wear. Each disc is formed with a flange portion Q', Fig. 5, and a body portion Q<11> joined by bolts upon which slotted washers Q can be placed. These discs H &c. are also adapted to be moved outwards clear of the rollers during the direct drive by connected screw means S, R, Fig. 2. An idle roller T is used to support the lateral discs opposite the roller D.
Patent GB-1212251-A (GB)
Title: A method of and apparatus for extracting liquid from a heterogenous material
IPC: B30B9/16
Filed: 1968-02-15
Abstract: 1,212,251. Juice extracting. SOC. POUR L'EQUIPMENT DES INDUSTRIES CHIMIQUES S.P.E.I. CHIM. REUNION DES ANCIENS ETABS. BARBET, EGROT & GRANGE, PINGRIS & MOLLET-FONTAINE. 15 Feb., 1968 [17 Feb., 1967], No. 7543/68. Heading A4C. [Also in Division B1] An apparatus for extracting liquid from heterogeneous materials such as a vegetable substance or a seed-containing fruit, preferably an apple, comprises a frame 1 supporting a longitudinal shaft 2 which is surrounded by a perforated cage 9, supported by metal hoops 10, through which the juice can escape, the apparatus having an inlet hopper 12 above the screw 3 and an unobstructed outlet 13 to collect the substance from which the liquid has been removed. The pressure generating screw 4 is fixed to and driven by shaft 2 which in turn is driven by gearwheels 5 and 6 and a motor (not shown). The feed screw 3 is supported to turn freely about the shaft 2 and is driven by a motor (not shown) and gearwheels 11. Preferably screw 4 has a constant pitch and a hub 8 whose diameter increases from inlet towards outlet; preferably the screw 3 has a constant pitch and is rotating in the opposite direction to screw 4. Alternatively the screw 4 may have a cylindrical hub and a pitch which increases from outlet towards inlet, or it may be of variable pitch and have a hub which increases in diameter from inlet towards outlet.
Patent GB-877079-A (GB)
Title: Improvements in rotary machines of the intermeshing screw type
IPC: F04C18/16
Filed: 1960-03-03
Abstract: 877,079. Rotary compressors and motors. SVENSKA ROTOR MASKINER A.B. March 3, 1960 [March 6, 1959], No. 7556/60. Class 110(2). In a rotary compressor or motor of the intermeshing screw type comprising two stages 28, 30 arranged in series, the rotors 18, 20, 22, 24 are journalled in the end walls of the casing and in an intermediate wall 26 thereof, aligned screws being interconnected by bolts 44 and carrying phasing gears 48, 50 if so desired. The driven screws may be formed as an integral construction or be mounted as separate spaced units, see Figs. 2 and 3 (not shown). Again, the high-pressure stages may be mounted on the shafts of the low-pressure voltages, see Figs. 4 and 5 (not shown), and the intermediate wall may be formed as a separate component, see Figs. 2 and 3 (not shown). The intermediate wall may be divided into halves and may, together with the stage 28, be fed with a lubricating and sealing liquid as through nozzles 70, 72.
Patent GB-216255-A (GB)
Title: Improvements in or relating to combined electric telephones and speaking tubes for railway trains
IPC: B61L15/00
Filed: 1923-03-16
Abstract: 216,255. Farmer, G. A., and Hemmings, H. W. March 16, 1923. No Patent granted (Sealing fee not paid). Couplings, disconnectible.-A speaking tube which also constitutes a conductor of a telephone circuit extends through a railway carriage and at each end is of a flexible construction and adapted to be coupled to a corresponding member on the adjacent carriage. The Figure shows a coupling between either flexible or rigid tubes 1 provided with insulation 2 and return conductors 3 comprising insulating annuli 8 and conducting cupshaped members 9 and discs 11 with insulation 10 adapted to make sliding engagement and complete both sides of the telephone circuit.
Patent GB-925640-A (GB)
Title: Improvements in or relating to jigs
Inventor: PARKINSON NOEL PERCIVAL HENRY
IPC: H03M1/00
Filed: 1962-02-27
Abstract: 925,640. Switch contacts. VACTRIC CONTROL EQUIPMENT Ltd. Feb. 27, 1962, No. 7617/62. Class 38 (5). [Also in Group XXII] A rotary analogue to digital shaft encoder comprises two similar rotatable contact discs 15, 53, interconnected by reduction gearing 54 and driven by a shaft 14, and fixed discs 12, 55 carrying wiper arrays 25-40 co-operating with the contact discs 15, 53. The contact discs 15, 53 are provided by a printed circuit technique with a pattern of conductive and non-conductive areas, formed from gold-plated copper foil and melamine resin, respectively. The discs are in effect divided into concentric rings 16-23 the inner ring 16 being wholly conductive, and the other rings having equispaced conductive and non-conductive areas, each ring having twice the number of conductive areas as the adjacent inner ring. Each ring co-operates with a pair of gold alloy wipers 25-40 shaped as shown in Fig. 5, and arranged as shown in Fig. 3. The wipers are soldered to copper pads 47 integral with eyelets 51 passing through the disc 12, 55 and in which connecting leads 52 are soldered.
Patent GB-623355-A (GB)
Title: Improvements in or relating to compositions containing aminotriazine-aldehyde condensation products and methods of preparing same
IPC: C08J3/03
Filed: 1943-05-13
Abstract: <PICT:0623355/IV (a)/1> A colloidal cationic dispersion of partially polymerized aminotriazinealdehyde condensation product is prepared by forming an acidified aqueous solution of a substantially unpolymerized condensation product, the acid producing a pH of 0.5-3.5 when measured at 15 per cent resin solids content, and ageing the solution to polymerize the condensation product until the particles thereof have dimensions within the colloidal range. Suitable aminotriazines are melamine, ammeline, ammelide, formoguanamine, acetoguanamine, propionoguanamine, 4-N-methyl or 4-N-ethyl-2-acetoguanamines.  They may be employed as salts. Suitable aldehydes are formaldehyde, acetaldehyde, and propionaldehyde.  Water - soluble condensation products prepared by heating the condensation products with lower aliphatic alcohols in presence of small amounts of acid catalyst may also be used. Suitable acids mentioned are hydrochloric, phosphoric formic, acetic, and sulphurous.  Sulphuric acid is disclaimed.  Examples are given of the preparation of a number of colloidal melamine-formaldehyde condensation product solutions and their behaviour on electrophoresis and coagulation with concentrated acid is described.  In Example 4 there is described the preparation of a condensation product from ammeline, formaldehyde and phosphoric acid and its ageing to form a cationic colloidal solution. Example 5 is similar, but uses acetoguanamine and hydrochloric acid. The colloids are substantive towards hydrated cellulose and may be added to paper stock, as described in Specification 622,905. Specification 477,841 also is referred to.
Patent GB-1499906-A (GB)
Title: Sliding door assemblies
IPC: E05D15/10
Filed: 1976-02-19
Abstract: 1499906 Sliding doors BECKETT LAYCOCK & WATKINSON Ltd 19 Feb 1976 [24 Feb 1975] 7663/75 Heading E1J [Also in Division B7]  A sliding door assembly comprises a door 11 mounted in an aperture in a structure, means for supporting the door in a manner which allows the -door to be swung out of the door aperture and to be slid alongside the structure into an open position, and means which effectively swing outwardly the side edge of the door which leads during opening of the door when force is applied to the door in the opening direction, the latter said means comprising a Y-shaped arm 14 the stem 18 of which is pivotally mounted on the structure 10 for pivotal movement about a vertical axis, one branch 15 of the arm which is the branch nearer to said leading edge 13 of the door having a pair of rollers 16, 17 spaced apart longitudinally of that branch for reception in respective guideways 24, 25 when the door is nearly in its closed position, which guideways are mounted on the door and which extend in the direction of opening of the door, the guideway 24 for the roller remote from the stem of the arm extending longitudinally into a recess 19 in the door and providing means such as wall 27 for guiding the respective roller into the recess when the door is moved into its closed position, the respective roller engaging a face of the recess so that it applies a turning moment to the arm to withdraw the roller from the recess when force is applied to the door in the opening direction, the other branch 21 of the arm having its free end 20 or a member attached thereto maintained in engagement with the inner face of the door or a guideway 22 thereon during the sliding movement of the door at least whilst said rollers are disengaged from their respective guideways. The branches of the arm are capable of bridging the vertical area 12 between the ends of the guideways 24, 25- and guideway 22, which in the closed position engages sealing means 30.
Patent GB-1172181-A (GB)
Title: Method of Constructing Cast Electrical Bushings
IPC: H01B17/00
Filed: 1968-02-16
Abstract: 1,172,181. Moulding condenser bushings. WESTINGH0USE ELECTRIC CORP. 16 Feb., 1968 [17 March, 1967], No. 7701/68. Heading B5A. [Also in Division H2] An electrical bushing is made by casting around an electrical conductor a first body portion of a resinous insulating material having a diameter decreasing in discrete steps from the centre towards each end thereof, disposing tubular electrically conductive members over the steps so that some of the conductive members overlap the members on the adjacent smaller diameter step, and casting a second body portion of insulating resin around the first body portion and electrical conductors so that this resin also fills the spaces between the overlapped conductive members. The bushing shown is made by casting the first body portion of resin about a conductor 14, the resin having a maximum diameter 20 and decreasing in steps 22, 24, 26, 28, 30 towards end 15 and steps 32, 34, 36, 38, 40 towards end 17. This resin is preferably thermosetting, e.g. an epoxide, but may be thermoplastic. The electrical conductors 42, 44, 46, 48, 50, 52, 54, 56, 58, 60 and 62 are then placed over the steps starting from the ends so that they overlap the previously placed conductor. These conductors may be preformed cylinders or foils which are shaped in situ and may comprise a good conductor such as copper or aluminium, a partial conductor such as a carbon impregnated sheet or semi-conductor such as a silicon carbide impregnated sheet. The conductor may have holes 64 to assist bonding to the second resin layer. A second layer of resin is then cast over the first body portion and the conductors so that the resin occupies the space between adjacent conductors, the weather sheds 72 and mounting flange 82 being cast at the same time. A wire 92 joined to the largest diameter conductor 52 before casting is connected to fixing bolt 86 so that this conductor is connected to the sheet 76 through which the bushing is fixed. In an alternative embodiment the mounting flange comprises a metal sheet fixed to conductor 52 before casting the second resin layer.
Patent GB-1525708-A (GB)
Title: Plastics link-spacer for holding metal reinforcement rods in a mould
IPC: E04C5/20
Filed: 1976-02-25
Abstract: 1525708 Stirrups with integral spacers MARLEY BUILDINGS Ltd 25 Feb 1976 [25 Feb 1975] 7802/75 Heading E1W A plastics stirrup 1 has spacing projections 9 integral therewith, and a number of partcircular apertures 5-8, of differing diameters, to accommodate different diameter reinforcing rods. Some of the projections 9 are arranged adjacent a web 10 between a large aperture 8 and smaller apertures 6 and 7, to facilitate enlarging the apertures temporarily to receive the rods. Struts 3 are provided to engage with formers 4a.
Patent GB-414319-A (GB)
Title: Improvements in photographic objectives having an iris diaphragm
IPC: G02B5/00
Filed: 1934-03-14
Abstract: 414,319. Photographic objectives. ZEISS, C., [Firm of], Carl-Zeiss-Strasse, Jena, Germany. March 14, 1934, No. 8010. Convention date, March 16, 1933. [Class 97 (i).] In a photographic objective having an iris diaphragm, the diaphragm is so constructed that the laminµ are displaceable on a curved, e.g. a spherical, surface, so that as the opening is varied the plane of the opening is displaced along the axis of the objective. As shown, the diaphragm is arranged between the components a, b of the objective and its laminµ c<1>, c<2> are attached to two conical surfaces the axes of which coincide with that of the objective. When the opening is very small its plane is near the inner surface of the lens b, and when the diaphragm is widely opened the plane of the aperture is towards the centre of the space between the components a, b.
Patent GB-1529244-A (GB)
Title: Floor sweeping machine
IPC: A47L11/33
Filed: 1976-03-01
Abstract: 1529244 Floor sweepers LEIFHEIT INTERNATIONAL GUNTER LEIFHEIT GmbH 1 March 1976 [4 March 1975] 08088/76 Heading A4F A floor sweeper comprises a roller brush 26 driven by floor engaging wheels 27 each mounted between pairs of longitudinally extending walls 29 moulded integrally with a substantially rectangular frame 22 having an open top and bottom, the wheels 27 having stub axles 34 received in downwardly-open bearing recesses 33 of the walls 29 and retained by closure covers 35 which close off lateral regions of the bottom of the frame. The closure covers 35 are preferably press-fits, having pairs of resilient locking arms 42 with projections 41 to engage walls 29, 39, 45, 46 also moulded integrally with the frame 22. Upwardly-open bearing recesses 37 may be provided on the covers 35 to co-operate with recesses 33 in defining inclined slots 48 for the stub axles 34 so that as the sweeper is pressed down on to the floor the wheels 27 are forced to frictionally engage end portions 28 of the roller brush axle. The sweeper has dust collecting chambers 49 closed by a flap 50 hinged about spindle 51; and a sheet metal plate 23 closes the top of the frame 22. As shown two cup-shaped auxiliary brushes 56 are provided which are rotatable about substantially vertical axes and are driven by a further floorengaging wheel 57 via axles 69 and level gearing 70, 71. A space 58, between the front wall 30 of the frame 22 and a transverse wall 60, is closed by a cover 59 having pairs of arms 42 with projections 41 similar to those of the closure covers 35, the space 58 accommodating the wheel 57 and the driving transmission for the bushes 56. The cover 59 has upwardly-open recesses 63, 83 for cooperation with downwardly-open recesses 62, 81 of walls of the frame to define bearings for the axles 69. The brushes 56 are limitedly pivotable so that they always sweep inwardly towards the main roller brush 26. Specification 1361323 is referred to.
Patent GB-449349-A (GB)
Title: Improvements in valve circuits
IPC: H03F3/32
Filed: 1935-03-15
Abstract: 449,349. Valve amplifying circuits. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and ALDOUS, W. H., c/o General Electric Co., Ltd., Wembley, Middlesex. March 15, 1935, No. 8089. [Class 40 (v)] In a push-pull amplifier biassed by the potential drop through a resistance in the cathode lead, a rectifier 12 is provided fed by the input to or the output from the amplifier and arranged to apply positive bias so that the increased negative bias produced by an increase in signal strength is compensated. The Figure shows a condenser 17 feeding the rectifier 12 from the input. In a modification, Fig. 2 (not shown), the rectifier is fed through a condenser from the anode of one of the valves. Specifications 388,292, 402,964, and 421,189 are referred to.
Patent GB-1158605-A (GB)
Title: Modifiable Polyoxymethylene Copolymers
IPC: C08G2/18
Filed: 1967-02-21
Abstract: 1,158,605. Cross-linkable oxymethylene copolymers. MONTECATINI EDISON S.p.A. 21 Feb.. 1967 [25 Feb.. 1966], No. 8141/67. Heading C3P. New polyoxymethylene copolymers consisting of at least 95% of -CH 2 O- units that form oxymethylene sequences separated by units derived from the opening of an acetalic bond of an ester of the formula:- wherein R<SP>1</SP> and R<SP>11</SP> are hydrogen atoms or methyl groups, are obtained by reacting substantially anhydrous trioxan with 0À2 to 15 mols of the ester per 100 mols of trioxan, in the presence of Lewis acid catalyst containing chlorine or fluorine, and at temperatures of 30 to 120 C. The reaction may be carried out in bulk or in a solvent. The products may be cross-linked using a free-radical catalyst or a compound containing at least two double bonds. Specified Lewis acids are SbCl 3 , antimony fluoborate, PCl 5 , SnCl 3 , FeCl 3 , BF 3 , BF 3 .(CH 3 ) 2 S, and BF 3 .(C 2 H 5 ) 2 O. Specified comonomers and the acrylates and methacrylates of 4-hydroxymethyl- 1 ,3-dioxolan and of 4-hydroxymethyl-2,2-dimethyl-1,3-dioxolan. A third comonomer may be used e.g. dioxolan, ethylene oxide and hexahydrobenzotrioxepan, the use of dioxolan being exemplified. In the examples the copolymers prepared using BF 3 .- (C 2 H 5 ) 2 O and in the absence of solvent, are mixed with N-phenyl-beta-naphthylamine. In Examples 1, 2, 3 and 5 the polymers are crosslinked with azo-bis-isobutyronitrile or alternatively with (1) and (2) azodicarbonamide, the polymer being swollen in dimethyl formamide in Example 1 prior to cross-linking. In Examples 2 and 4 the polymers are also cross-linked using a solution of divinylbenzene in ethylvinylbenzene.
Patent GB-492349-A (GB)
Title: Improvements in or relating to method and apparatus for treating metal coils with a liquid
IPC: B65G49/04
Filed: 1937-03-19
Abstract: <PICT:0492349/III/1> <PICT:0492349/III/2> A coil of metal strip is subjected to liquid treatment, e.g. pickling and rinsing, dried, and then oiled by rotating it while oil is sprayed between its convolutions.  In the form shown the coil, after drying, is passed into an oiling chamber 99, having sliding doors 101, and a tiltable frame 102 carrying rotatable rollers 103, 104 on which the coil is supported, and a fluid-pressure cylinder 114 for tilting the frame. Oil is pumped from a sump 109 into a tank 107 mounted in one end wall of the chamber and preferably shaped as shown.  The oil issues in the form of a spray from the perforations 108 in the tank wall and passes through the rotating coil and coats the strip between the convolutions.  In a modified form of oiling apparatus, Fig. 14, a housing 132 at one side of the chamber is provided with oil atomizers 133 preferably mounted in staggered relationship. Electric blowers 137 are provided to draw the atomized oil from the housing 132 and blow it between the spaced convolutions of the rotating coil.  Oil from the housing and the chamber drains into a sump from which it is pumped to an overhead tank supplying the atomizers.  Excess oil spray is drawn out of the chamber by an exhauster 142 and passed through a compartment 143 with baffles 144, separated oil draining from the compartment to the sump.  The air leaving the compartment 143 is washed by water which issues from a perforated pipe 152 and flows down a baffle plate 149.  The water and oil pass to waste and the purified air escapes at 154. After the coil has been coated with oil the frame is tilted to discharge it from the oiling chamber on to skids 116.