baber/WOPTO huggingface dataset:
Patent GB-337324-A (GB)
Title: Improvements in propellers with variable pitch
IPC: B64C11/34
Filed: 1930-02-20
Abstract: 337,324. Barbarou, M. J. B. March 19, 1929, [Convention date]. Screw propellers. - In screw propellers wherein the pitch is automatically varied under the control of an auxiliary propeller of fixed pitch, the shaft of the auxiliary propeller is connected by gears with gears on the roots of the main propeller blades and an elastic resistance is interposed between them. The blades 10 whose pitch is to be varied carry bevel wheels B and these gear with a bevel wheel 42 on the shaft of an auxiliary propeller 45. Connected with the wheels 8 are. roller projections 24 which bear on opposite sides of a laminated spring 23 secured at the centre to an arm 6 projecting from the hub 1<a> on the main driving shaft 60. The hub 1<a> is extended to form spigots 1 for the roots of the blades and is further extended at 62 to form stiffeners for the middle of the blades.
Patent GB-480998-A (GB)
Title: An improved quick release pin
IPC: F16B21/10
Filed: 1937-02-25
Abstract: 480,998. Stud - fastenings. FAIREY AVIATION CO., Ltd., and VOSS, E. Feb. 25, 1937, No. 5709. [Class 44] A fastening-device for engagement in registering apertures in the members to be secured together comprises a tubular body a with external flange b at one end adapted to bear against one of the members A, the tube having a closure c at the other end and housing a rod f with a nose h adapted to project through a lateral opening near the end,c into engagement behind the other member 13. The nose has an inclined leading edge as shown and is normally projected by the action of a plate spring m, assembled by insertion through an aperture d in the end c and provided with a kink engaging a notch k in rod f to hold the parts in assembly with the curled end n of the spring held in aperture d. Release is effected by a projecting handle y on rod f by which the rod may be rocked about a swelling j as a fulcrum to retract nose h.
Patent GB-807040-A (GB)
Title: A ram guide for a lift truck
Inventor: QUAYLE GEORGE F
IPC: B66F9/08
Filed: 1957-02-20
Abstract: 807,040. Masted lift trucks. YALE & TOWNE MANUFACTURING CO. Feb. 20, 1957, No. 5712/57. Class 78 (3). In a masted lift truck the lifting ram is protected against damage in the event of cocking of the movable guides 11 relative to the fixed guides 10 by mounting the lower end of the ram cylinder 22 for limited universal movement relative to guides 10, and by providing a guide rod 35 which is secured to the cross member 31 joining guides 11 and carries a bush 40 which slides on the internal walls of the tubular piston 24. The rod is provided with a collar 42 which is engaged by the upper end of the piston during lowering to exert a downward pull on guides 11. The lower end of cylinder 22 is loosely mounted in an annular seat (not shown) secured to a member connected to the lower ends of guides 10. The guides 11 and carriage 12 are provided with additional guide rollers 19, 20, 21 (Fig. 2) rotatable about axes extending normally to the axes of the usual guide rollers 14, 15.
Patent GB-1439822-A (GB)
Title: Gallium arsenide photocathodes
IPC: H01J9/12
Filed: 1973-02-06
Abstract: 1439822 Photocathodes STANDARD TELEPHONES & CABLES Ltd 31 Jan 1974 [6 Feb 1973] 5782/73 Heaving H1D A method of making a GaAs transmission type photocathode comprises growing epitaxial layers 1, 3 of GaAlAs and GaAs successively on a GaAs substrate 2 and removing a central region 7 of the substrate without penetrating the layers 1, 3 to leave an apertured portion 6 supporting the periphery of the layers. The layers comprise P-type Ga 0À5 Al 0À5 As, 40-100 Á thick and P+-type GaAs, 5-10 Á thick. The coated substrate is attached by wax 4 to a support 4 and the central region removed by bubble etching using H 2 SO 4  and H 2 O 2  through which N 3  is pumped. The layer 3 is then treated with Cs.
Patent GB-1060083-A (GB)
Title: Method of isolating steroids
Inventor: ROMANCHUK MARIJA AVKSENTJEVNA
IPC: C07J75/00
Filed: 1964-02-12
Abstract: The invention comprises a method of isolating steroids from culture fluids by adsorption on a large-pore highly-swelling cation-exchange resin obtained by sulphonating a copolymer of styrene and 1,3-butadiene, and eluting the steroid therefrom with an organic solvent. Steroids specified are 11-epihydrocortisone, hydrocortisone, prednisolone, prednisone, D 1-17a - methyl - testosterone and 1,4-androstadiene-3,17-dione.
Patent GB-1003609-A (GB)
Title: Apparatus for cleaning hands and arms
IPC: A61L2/22
Filed: 1964-02-12
Abstract: 1,003,609. Cleaning apparatus. AMERICAN STERILIZER CO. Feb. 12, 1964 [Feb. 12, 1963], No. 5845/64. Heading A5R. An apparatus for surgically scrubbing surgeons' hands, and arms, comprises an enclosure 20 into which arm 25 is inserted, and a nozzle ring 15 having nozzles 16 and surrounding the arm 25, the nozzles 16 discharging airless jets of alcohol and suspended abrasive particles. The nozzle ring 15 is moved back and forth along the arm by reciprocating bar 18. The abrasive particles are dispersed in alcohol by agitator 4 driven by motor 3, the alcohol in container 1 being maintained under pressure. Used alcohol and abrasive is returned from enclosure 20 to container 1 via valve 26 and pump 27. To prevent an explosive alcohol-air mixture being formed within the enclosure 20, a gas such as nitrogen is supplied from reservoir 23. The apparatus may be used to apply jets of alcohol alone by switching off motor 3.
Patent GB-469379-A (GB)
Title: Improvements in vacuum cleaners
IPC: A47L9/14
Filed: 1937-02-26
Abstract: 469,379. Vacuum cleaners. ELECTROLUX, Ltd. Feb. 26, 1937, No. 5866. Convention date, March 16, 1936. [Class 8 (ii)] In a suction cleaner in which a filter bag 14 is clamped at its edge between the main casing 10 and the cover 11, arrangements are provided so that the filter bag, on the removal of the cover, is lifted off its seating so that it is not necessary to grasp the bag itself when its removal is necessary. This is effected by spring-loaded bolts 24 which are located in housings 23 secured to the outside of the casing 10. The heads of the bolts bear against the underside of packing-ring 19 which stiffens the edge 18 of the bag. The removal of the cover allows the spring bolts to lift the filter bag from its seating. Alternatively the spring edge of the filter bag is corrugated and is temporarily pressed flat between the edge 1 of the cover and main casing. The same end may be reached by corrugating these edges and giving the spring edge of the filter bag a flat form. In a further modification, the cover carries a hook which causes the raising of the filter bag from its seat on lifting the cover.
Patent GB-657841-A (GB)
Title: A new or improved wood bending machine
IPC: B27H1/00
Filed: 1949-03-03
Abstract: 657,841. Wood-bending machines. EVANS, F. H. March 3, 1949, No. 5901. [Class 145(ii)] A wood-bending machine has hydraulically operated presser members 11, 12, actuated through levers 7, 8, and links 9, 10 by hydraulic jacks 23, 24, which may be operated independently. The wood to be bent is placed between former 3 and a steel band 55 having end stops 56.
Patent GB-679037-A (GB)
Title: Improvements in or relating to coat and like hangers
IPC: A47G25/40
Filed: 1950-03-09
Abstract: 679,037. Coat hangers. WRIGHT, L. J., and TOMLINSON. K. H. March 7, 1951. [March 9, 1950] No. 5904/50. Class 52 (v). A coat hanger comprises two arms 1, 2 hinged or detachably connected to lie, when viewed in plan at an obtuse angle of less than 180 degrees. In the hinged construction the axis of the hinge 3 is skewed so that when the arms 1, 2 are in their folded position they lie in the same plane. Hinged or detachable trouser rails 4, 5 hold the arms 1, 2 in position and the arms are preferably grooved to accommodate the rails in the collapsed position, the hook 11 also folding into grooves in the trouser rails. Fig. 6 shows the arms detachably connected by a tenon 15. The hook is formed with a spherical lower end 17 which is inserted into an aperture at the junction of the arms to hold them against unintentional disengagement.
Patent GB-617901-A (GB)
Title: Improvements in or relating to hydromechanical transmissions
IPC: F16H61/62
Filed: 1946-02-26
Abstract: 617,901. Hydraulic power transmitters. BORG-WARNER CORPORATION. Feb. 26, 1946, No. 5958. Convention date, May 5, 1943. [Class 69 (ii)] [Also in Group XXIV] A hydro-mechanical variable-speed gear com. prises a hydraulic torque converter, the reaction member of which is rotated through gearing whilst taking reverse torque, but is allowed to rotate freely under forward torque by the automatic release of a coupling unit taking the gearing reaction. As shown applied to a motor vehicle transmission, the reaction member 55 of a hydraulic torque converter, the pump 52 and turbine 54 of which are connected to input and output shafts 50, 51 respectively, is rotated either forwardly or reversely from the shaft 51 whilst taking fluid torque reaction. Rigid with the shaft 51 are the interengaging planet carrier 63 and sun 72 of two epicyclic gears, the annuli 58, 71 of which are alternatively connectible by friction clutches 64, 78 to the hollow shaft 56 of the reaction member 55. The remaining sun 60 and single planet carrier 74 are unitary and are prevented from reverse rotation by a one-way roller detent 76 so that engagement of the clutches 64, 78 causes respectively forward and reverse rotation of the reaction member whilst the latter is taking fluid torque reaction. When such reaction ceases, the detent 76 allows free forward rotation of the reaction member, the engaged epicyclic gear idling. Engagement of the clutch 64 gives less torque magnification in the converter and fluid torque reaction on the reaction member up to higher output speeds than would be the case with a stationary reaction member, whilst engagement of the clutch 78 has the reverse effect. The clutches 64, 78 each comprise inner and outer clutch discs splined respectively to the annulus 58 or 71 and to a member 66 rigid with a flange 65 on the shaft 56, and are alternatively hydraulically operated by pistons 69, 82. Pressure fluid is supplied to one or other of the pistons from a conduit 92 and exhausted from the inoperative piston through a conduit 90 or 91, according to the axial position of a valve member 83 having lands controlling ports 88, 89 leading to the pistons. The valve member 83 is spring-loaded to engage the clutch 78, but is movable to engage the clutch 64 upon full depression of the vehicle engine accelerator pedal 94 acting on the valve through a Bowden cable 97. In Figs. 1 and 3 (not shown) giving respectively permanent forward and reverse rotation of the reaction member whilst. taking fluid torque reaction, one epicyclic train only, having its annulus rigid with the reaction member, is used in each case.
Patent GB-179512-A (GB)
Title: Improvements in or relating to vehicle hoods
IPC: B60J7/12
Filed: 1922-02-28
Abstract: 179,512. Botella, J. May 4, 1921, [Convention date]. Hoods.-The uprights of a hood for transforming an open into a closed vehicle are arranged to fall, when lowered, outside and below the sides of the body, to allow of which they are displaced outwardly from the body in the downward movement, the framing of the hood being jointed to permit the outer movement. The hood uprights 10, Fig. 1, are secured to links 1 mounted on axes 2 capable of rotating in bearings 3, Fig. 3, and -at the same time moving .along the axes, the translatory movement being caused by engagement of keys on their axes with helical grooves 5, or by other means. The uprights are hinged at 11 to permit the outward movement, and similar keys a, a<1> Fig. 3, are provided in the rear hoop 6. The hoops 6 are hinged to the uprights, and have hinges 15, while links 14 connect them to the tops of the uprights 10. The hood also has struts 12, and is attached to the front screen uprights 7. This screen is arranged to slide into the front seat back which also houses the uprights 7 which are keyed and connected by links 8, Fig. 4, to a bridge 13 which acts as a closure. The side windows are then housed in the doors, the housings having hinged lids 15'.
Patent GB-1154433-A (GB)
Title: Improvements relating to Terminal Fittings for Flexible Cables
Inventor: CLARK SIDNEY JAMES
IPC: F16C1/26
Filed: 1967-02-08
Abstract: 1,154,433. Bowden mechanisms. S. J. CLARK (CABLES) Ltd. 29 Nov., 1967 [8 Feb., 1967], No. 6011/67. Heading B7E. [Also in Divisions E2 and F2] Relates to an end fitting for a flexible cable, e.g. a Bowden cable, comprising a control rod 4, for connection to the cable 2, non-rotatably slidable in a tubular guide 5 adapted to be inserted axially in an aperture 10 of a mounting panel 3. An end flange 8 on the guide 5 engages one face of the panel 3 and resilient lugs 14 extending at right angles to the guide axis are adapted for insertion through portions 17 of the aperture 10 and subsequent rotation behind the panel to a locking position in which detents 16 on the lugs or aperture surround engage recesses or slots 18 in the aperture surround or the lugs. A step 9 on the guide adjacent the flange 8 engages the circular arc portions 11 of the aperture 10 boundary. The lugs 14 are formed on a plastics or sheet metal member 13 which fits on to a square cross-sectioned portion 12 of the guide 5, lugs 15 on the guide retaining the member 13 against axial movement. Inclined edges 19 of the lugs 14 facilitate rotation of the guide 5, with the member 13, into the locked position. A sheath 7 for the cable 2 is connected to the end of the guide 5. The rod 4 carries an operating knob 6.
Patent GB-1027488-A (GB)
Title: Direct-view viewfinder with variable equivalent focal length
Inventor: JURENZ ROLF
IPC: G03B13/02
Filed: 1964-02-13
Abstract: 1,027,488. View-finders for photographic cameras. PENTACON DRESDEN KAMERA-UND KINOWERKE VEB. Feb. 13,1964, No. 6060/64. Headings G2A and G2J. Indicia are observed outside the view-finder field through eye lens 3 and without lens 4, 5 which is movable to alter the field of view of the viewfinder. Pointer 7 is illuminated by a ground portion 2<SP>1</SP> of lens 2 and viewed through aperture 9. A scale is provided on translucent member 6 and an additional scale may be printed or etched on position 21.
Patent GB-300113-A (GB)
Title: Improvements in cheeses and processes for preparing the same
IPC: A23C19/08
Filed: 1928-02-27
Abstract: 300,113. Phenix Cheese Corporation, (Assignees of Martin, E. S.). Nov. 5, 1927, [Convention date]. Cheese or a cheese mass formed by adding milk, cream, or butter to comminuted cheese is stirred and heated to about 165‹ F. to effect pasteurization and is then " viscolized " by passage through extremely small openings under pressure of the order of 3000 lbs. per sq. in. While still hot the mass is run or poured into containers and hermetically sealed, after which the containers with their contents may be further heated to improve the keeping qualities of the cheese; or the hot cheese mass may be run or poured into cartons or boxes. An emulsifier such as sodium citrate, may be added to the mass. The Specification as open to inspection under Sect. 91 (3) (a) includes a reference to U.S.A. Specifications 1,389,095 and 1,389,577 and reissue 15648/22. This reference does not appear in the Specification as accepted.
Patent GB-432135-A (GB)
Title: Improvements relating to radio receiving apparatus
IPC: H03G3/26
Filed: 1934-02-24
Abstract: 432,135. Valve circuits for wireless reception. BARRETT, C. R. L., Hollywood, Palmerston Park, and MADDOCK, N., Sherbro, Dartry Road, both in Dublin. Feb. 24, 1934, No. 6122. [Class 40 (v)] Positive grid bias is applied, through an associated inductance, to a carrier frequency valve or valves, in a receiver provided with A.V.C., to obtain interchannel noise suppression. In one embodiment A.V.C. potentials are produced across the load resistance R1, Fig. 1, of a diode rectifier A2 fed with signal energy from the circuit L5 through condenser C1, and bias the carrier frequency stages through a filter R2, C2. A battery B in the A.V.C. lead positively biases the controlled valves until the rectified output from resistance R1 exceeds the voltage of the battery B. In a modification, Fig. 2 (not shown), the fixed positive voltage is derived from a potentiometer connected across the H.T. source or in a further modification, Fig. 4 (not shown), from the cathode resistance of the triode VI in the envelope of which the diode A2 is contained. In the superheterodyne receiver of Fig. 6, the A.V.C. voltages for the radio frequency valve V4 frequency changer V3 and intermediate frequency valve V2 are fed through their associated inductances L4, L3, L2 respectively from the cathode of the diode-triode V1 which in the absence of signals is positive relative to earth, by an amount which can be adjusted by varying the cathode resistance R7. The voltage across the cathode resistances R6, R7 is, in the absence of signals, greater than that across the resistance R9 which produces an opposing voltage. As the signal increases, the current through the triode portion of V1 and the resistances R6, R7 is reduced by virtue of increasing grid bias fed from the load resistance of the demodulator diode, until the potential drop across said resistances is less than that across R9 after which the grids of the controlled valves V4, V3, V2 become progressively negative. Reference has been directed by the Comptroller to Specifications 407,317, 423,194, and 424,779.
Patent GB-404820-A (GB)
Title: Cable joints
IPC: H02G15/18
Filed: 1933-03-01
Abstract: 404,820. Cable joints. OKONITE-CALLENDER CABLE CO., Inc., 730, 21st Avenue, Paterson, New Jersey, U.S.A. March 1, 1933, No. 6219. Convention date, March 1, 1932. [Class 38 (i).] A joint casing consists of a steel sleeve 9 welded to the pipes 1, 2 in which the cables 3, 4 are laid, a heat insulating bushing 5 being inserted in the end of each pipe to protect the cable during welding. Flanges 6, 7 are welded to the pipes before the cables are drawn in, the sleeve 9 is slid over one pipe, the bushes 5 inserted, the joint made and the sleeve then welded to rims 8 on the flanges 6, 7. Annular ribs formed on the bushes 5 locate them correctly in the pipes.
Patent GB-377915-A (GB)
Title: Improvements in or relating to the indenting of metallic elements
IPC: B21D53/30
Filed: 1932-03-01
Abstract: 377,915. Indenting hoops &c. BUDD WHEEL CO., 2500, Hunting Park Avenue, Philadelphia, U.S.A.-(Assignees of Farr, W. H. ; 12141, Charlevoix Avenue, Detroit, Michigan, U.S.A.) March 1, 1932, No. 6224. Convention date, March 24, 1931. [Classes 83 (ii) and 83 (iv).] An annulus e.g. a wheel rim 14 is indented while firmly held by the expanded ring of dies 10 by an outer ring of indenting dies 12 mounted in the contracted ring of external dies 11.
Patent GB-343325-A (GB)
Title: Improvements in or relating to folding hammock or deck chairs
IPC: A47C4/40
Filed: 1930-02-25
Abstract: 343,325. Seat adjustments. BROWN, A. C., 1, Wolsey Street, Ipswich, Suffolk. Feb. 25, 1930, No. 6263. [Class 52 (ii).] In a folding X-frame chair, the cross rail 6 on the strut frame 2 has extending rigidly alongside it a separate rod or rods 7 for engaging the notches 9-11, the rail 6 being recessed at each end, as at 8, to allow sufficient clearance for the rod to pass into the notches. The rail may be grooved on its underside to accommodate the rod which may be secured, at its ends, to the frame 2. Instead of one complete rod 7, two short rods may be provided, one at each end of the rail 6. The notches may be of keyhole formation, with sloping ramps 13.
Patent GB-470865-A (GB)
Title: Improvements in anvils for riveting machines
IPC: B21J15/36
Filed: 1936-03-02
Abstract: 470,865. Setting tubular and other rivets. BIFURCATED & TUBULAR RIVET CO., Ltd., and PATERSON, L. M. March 2, 1936, No. 6279. [Class 43] In a riveting machine anvil, suitable for use in setting bifurcated, tubular or outside prong rivets, comprising an outer portion and an inner axially movable pin 9, the pin is supported directly by a member 14 which during riveting and due to pressure from the pin slides against spring (15) pressure in a direction at an angle to the axis of the pin. The pin terminates in an inclined surface 12 seated upon the inclined end 13 of the member 14. Abutments A and B limit movement of the pin. A grub screw 21 prevents rotation of the member 14. The insert 23 is of hardened steel. A brass plate 24 takes the side thrust of the pin. In a modification the lower end of the pin is bifurcated and rectangular, and movement thereof is limited by a removable stop secured in the floor of the bore C. Specification 383,810 is referred to.
Patent GB-884531-A (GB)
Title: Improvements in or relating to the manufacture of cylinders of piston-and-cylinder devices without machining of the cylinder bores
IPC: F16J10/02
Filed: 1959-02-24
Abstract: 884,531. Lining cylinders of piston-andcylinder devices. SCHLEPPERWERK NORDHAUSEN VEB. Feb. 24, 1959 [Dec. 22, 1958], No. 6313/59. Class 87(2). [Also in Groups XXII and XXVI] The metal cylinder 3 of a piston - and - cylinder device is provided with a working surface in the form of a layer 6, Fig. 2, of synthetic resin, such as an epoxy resin. The synthetic resin is first poured into the cylinder and then displaced up the cylinder wall by inserting a smooth-surfaced core which is centralized at its upper and lower ends-; a layer of silicon oil emulsion on the core prevents adherence with the cylinder. Closure plugs prevent escape of the synthetic resin through the inlet and outlet pipe connections of the cylinder and these connections are undercut to key with the moulded layer.
Patent GB-180739-A (GB)
Title: Improvements in or relating to the mercerisation of yarns in hank form
IPC: D06B7/06
Filed: 1921-02-25
Abstract: 180,739. Copley, J. F. Feb. 25, 1921. Hank type.-In machines for mercerizing hank yarns, the hanks are extended between rods or bobbins permanently attached to traversing-chains. The hanks are stretched by arranging that the distance between a pair of rods or bobbins is greater than the normal length of the hank carried thereby, the strain or pull being thus borne by the hanks during the straight traverse of the chain. Means are provided for tensioning the hanks, for varying the tension in different sections of the machine, and for turning the hanks to change their positions on the rods or bobbins. As shown in Fig. 3, the hanks g are mounted on bobbins d connected by rods c to hollow bosses b' formed in certain links b of an endless chain a, Fig. 1. The chain or a pair of chains is traversed through a mercerizing-tank h and washing-tanks i, j by passage over worm-driven wheels k and carrierwheels l, m. The worm-shaft p has sections which can be uncoupled for varying the tension in different parts of the chain, alternative methods of attaining the same end being described in the Specification. Movable or stationary chains u, w may be arranged in the tanks for engaging sprocket-wheels f on the bobbins d, to cause the hanks to turn. Small wheels x, y are provided for facilitating the attachment of the hanks to and their removal from the bobbins d. The bobbins may be corrugated, and the wheels in the washing-tanks may be replaced by perforated or corrugated cylinders. Sprays may be employed to spray washing-liquid on to the hanks before they enter or as they leave a washing-bath, plates being provided to prevent the liquid from entering the mercerizing-tank. According to the Provisional Specification, the arrangements are, in some cases, such that the hanks are at no time taut during submersion in the mercerizing-liquid.