baber/WOPTO huggingface dataset:
Patent GB-615867-A (GB)
Title: Improvements in or relating to the bending of angle irons
IPC: B21D7/024
Filed: 1946-08-16
Abstract: 615,867. Curving. BABCOCK & WILCOX, Ltd. Aug. 16, 1946, No. 24421. Convention date, April 17, 1944. [Class 83 (iv)] In a machine for bending angle sections in a hot state to circular form, the section is clamped by a screwoperated member 12 to a table 1 rotated by an electromotor and carrying a former 11. The bending is effected by a roll 14 engaging the edge of the section and by a roll 18 engaged the angle. The section is first bent at one end and is then reversed and the circular bend completed,
Patent GB-800233-A (GB)
Title: Improvements relating to signal heads for recording and sensing magnetic signals
IPC: G11B5/10
Filed: 1955-08-25
Abstract: 800,233. Magnetic recording and reproducing heads. DIRKS, G. Aug. 27, 1956 [Aug. 25, 1955], No. 24421/55. Class 40 (2). In a multi-magnetic head individual transducers are arranged side-by-side for serial operation (i.e. in the direction of relative movement) and the cores 6 thereof are housed in recesses 4, 5 in separable parts 1, 2 of a holder which are adapted to be clamped together in fixed relationship to hold the pole tips of said cores accurately in 'overlapping relationship about a non-magnetic shim 8 to form a precisely dimensioned non-magnetic gap between them. The housing may be grooved to ensure accurate location, as shown in Fig. 5, and may be slotted at an angle to the normal so as to avoid the need to joggle the core members, Fig. 6. The housing may comprise three parts to contain a three-part core, Fig. 4.
Patent GB-721453-A (GB)
Title: Improvements relating to gas turbines
Inventor: SHANNON JAMES FORREST
IPC: F01D11/08
Filed: 1951-10-19
Abstract: 721,453. Gas turbines. METROPOLITANVICKERS ELECTRICAL CO., Ltd. Aug. 6, 1952 [Oct. 19, 1951], No. 24463/51. Class 110(3). A gas-turbine stator 1 has a liner 3 comprising at least one thin, cylindrical or frusto-conical shell arranged therein coaxially with the rotor and mounted substantially in radial alignment with a row of rotor blades 7 by abutment surfaces carried by the stator in axial proximity to said row of blades, which abutment surfaces provide a clearance between the shell and the adjacent part of the stator to allow axial and radially outward expansion of the shell, and said abutment surfaces supporting the shell without clearance between the latter and said abutment surfaces to prevent radially inward movement of the shell. Each liner has a pair of flanges 4 provided with a locating rim 5. The liners are prevented from rotating by pins 8 which engage recesses in the rims 5. The stator and liner are both formed in two parts, the liner parts being separated by gaps 9 which are sealed by two-part guide members 10 secured to the stator by screws 11. In a modification, each liner is provided with one flange having a rim which extends axially therefrom in both directions.
Patent GB-1195933-A (GB)
Title: Substituted Benzothiadiazepine Derivatives and the Manufacture thereof
IPC: C07D285/36
Filed: 1968-05-22
Abstract: 1,195,933. Benzothiadiazepine derivatives. UPJOHN CO. 22 May, 1968 [23 June, 1967], No. 24466/68. Heading C2C. 1,2,4 - Benzothiadiazepine - 1,1 - dioxides of the formula where R<SP>1</SP> is amino, alkylamino, dialkylamino, N - alkyl - 1 - piperazinyl, alkylphenyl, alkoxyphenyl or alkylthio (where each alkyl portion contains 1 to 4 carbon atoms), 1-pyrrolidiny, morpholino, piperidino, or phenyl, R<SP>2</SP> and R<SP>3</SP> are C 1-4  alkyl or alkoxy, halo or trifluoromethyl, and m and n are 0 to 3, are prepared by condensing at room temperature an appropriate 2- benzoylbenzenesulphonyl chloride with guanidine, or a 2-alkylisothiourea or an amidine of formula Q-C( =NH)-NH 2 , where Q is phenyl, alkylphenyl or alkoxyphenyl, and thereafter cyclizing the obtained condensation product in an aromatic solvent and in the presence of an acid catalyst. The 4,5-dihydro derivatives of the abovedescribed benzothia-diazepine-1,1-dioxides are prepared by hydrogenation thereof at a pressure of from 1-50 atmospheres in the presence of a hydrogenation catalyst. N - (2 - Benzoyl - 4 - chlororobenzenesulphonyl). benzamidine is prepared by reacting benzamidine hydrochloride with 2-benzoyl-4-chlorobenzene - sulphonyl chloride. 2 - Benzoyl - 4- chlorobenzenesulphonyl guanidine is prepared by reacting guanidine carbonate with 2-benzoyl-4- chlorobenzene sulphonyl chloride.
Patent GB-710292-A (GB)
Title: Improvements in or relating to the lubrication of anti-friction bearings
Inventor: HUGGINS PERCY
IPC: F16C33/66
Filed: 1951-10-19
Abstract: 710,292. Lubricating. LANCASHIRE DYNAMO & CRYPTO Ltd., [formerly LANCASHIRE DYNAMO & CRYPTO (MFG.), Ltd.]. Oct. 20, 1952 [Oct. 19, 1951], No. 24468/51. Class 12(3) In an anti-friction bearing having a substantially horizontal axis, a lubricating device includes a partition between the bearing and a reservoir and arranged for lubricant to pass from the reservoir to the bearing through an orifice in the partition at a lower level and to pass at a higher level through an unobstructed path back to the reservoir, and a stationary mass of porous or percolator material through which the lubricant passes after leaving the reservoir and before reaching the bearing. As shown, an annular partition plate 1 is clamped to one side of a bearing 2 by a flanged cap 4 which with the plate constitutes a reservoir for oil. The plate has an orifice 6 against which is provided a tube 7 containing porous or percolator material 8 packed between metallic mesh discs 9, 10. A ring 11 is interposed between the disc 9 and the plate 1. A similar ring 12 outside the disc 10 is engaged by a split pin 13 passing through apertures in the tube 7. The plate 1 has orifices 1a for return of lubricant from the bearing to the reservoir. Specification 697,797 is referred to.
Patent GB-179134-A (GB)
Title: Improvements relating to leather paring machines
IPC: C14B1/00
Filed: 1921-09-15
Abstract: 179,134. Fortuna-Werke Spezialmaschinenfabrik Ges. April 29, 1921, [Convention date]. No Patent granted (Sealing fee not paid). Skiving &c.-A skiving-machine with a cylindrical cutter m and grinding wheel r has a lower feed roller h mounted in a protective casing hinged on a pin, the axis of which is parallel to the table plate of the machine and coincident with the axis of the driving-shaft of the feed roller. The hinged casing b carries a worm wheel l which is driven from a worm n on shaft o and drives the feed roller h through a shaft q, and has an integral sleeve c mounted in bearings d, d<1>, in the fixed frame. A key c on the sleeve engages a keyway to prevent the turning of the casing until it has been laterally displaced to withdraw the roller h from the cutter.
Patent GB-1299035-A (GB)
Title: Minute magnetic capsules and thermomagnetically responsive record material utilizing the same
IPC: B01J13/02
Filed: 1971-04-19
Abstract: 1299035 Thermo-magnetic recording media NATIONAL CASH REGISTER CO 19 April 1971 [2 April 1970] 24506/71 Heading G2H [Also in Divisions B6, B8 and H1] A capsule (5 to about 1000 Á average diam.) comprises a light transmitting polymer wall enclosing magnetic particles and a vehicle which is a solid or paste at 18-50‹C. but a liquid at temperatures above 50‹ C., so as to allow movement of the magnetic particles in response to a magnetic field and subsequent fixing of the particles thus moved. The vehicle may be a substance solid at room temperature but pasty or liquid on heating e.g. a wax. Many vehicles are specified. The capsules may also contain lightreflecting particles and/ or pigment particles (many specified). In one embodiment, the magnetic particles are themselves encapsulated with dye or pigment in a polymer matrix. Thermo-magnetic recording media are made by incorporating the capsules in or on (with or without a binder) a substrate of e.g. paper, glass or plastics. The wet image produced by application of heat and magnetic field is optionally permanent set thermally erasable. In Example 15 a core composition of barium ferrite, tristeam wax and sorbitan trioleate is encapsulated in gelatine-gum arabic and ethylene-maleic anhydride copolymer. The capsules are coated on to paper and polyethylene terephthalate substrates, dried and coated with polymethyl methacrylate. For further Examples, the materials encapsulated are stainless steel flakes, nickel flakes or a mixture of black magnetic iron oxide and titanium dioxide.
Patent GB-709804-A (GB)
Title: Improvements in or relating to the folding of cigarette papers
IPC: B65H45/24
Filed: 1950-10-09
Abstract: 709,804. Interfolding paper sheets. STANGEL, A, and GAMBLE, H. Oct. 4, 1951 [Oct. 9, 1950], No. 24568/50. Class 100 (1). [Also in Group VII] A method of folding cigarette paper into V-form for assembly into interleaved packings, comprises the step of forming a tightly pressed pleat so that the middle crease of the pleat sharply defines the folding line, while the outer creases of the pleat are in the reverse direction to the middle crease, the sheet being thereafter fo'ded into open V-form by an oscillating blade. As shown in Fig. 2, a web 3 is fed between two pairs of clamps comprising plates 5, 6 and 7, 8. The plates 5, 7 are oscillated, by a lever 13 in the directions p', thus clamping and releasing the web periodically. A creasing blade 17 is fixed to the plate 5, such that the blade 17 depresses the web, clamped by the plates 7, 8, into a slot between the plates 6 and 8 ; upon withdrawal of the blade 17 the plate 6 is moved by an oscillating lever 11 towards the plate 8, thus forming creases on either side of the fold formed by the blade 17. The creases tend to maintain a sheet 1, cut from the web by a knife 9, in V-form. The sheet 1 is then fed downwards through a slotted plate by an oscillating folding blade, into a grooved interleaving drum 10 provided with suction apertures in known manner. In a modification of the folding apparatus, Fig. 7, the folding blade 23 is hollow, such that compressed air passing through holes 31 and a slit 32 opens the sheet in V-form, the sheet being maintained in V-form, until reaching the interleaving station, by suction apertures in the interleaving drum.
Patent GB-698532-A (GB)
Title: Fluid-pressure actuated control system
IPC: G05D16/16
Filed: 1951-10-22
Abstract: 698,532. Fluid-pressure servomotor-control systems. GASAIR CORPORATION. Oct. 22, 1951 [Jan. 11, 1951], No. 24629/51. Class 135 A fluid-pressure control system comprises a pressure-responsive member e.g. diaphragm 34, Fig. 3, in which is mounted a pilot valve comprising a casing 40 with an inlet below, and an outlet above, the diaphragm, the inlet and outlet being controlled by spaced closure members 65, 64, respectively, and when the controlling pressure applied to the diaphragm through a conduit 26 reaches a pre-determined minimum, inlet closure 65 is opened and the pressure fluid flows to the control chamber 81 of a further pressure-responsive member e.g. diaphragm 80, the chamber 81 being vented past the now opened closure 64 when the pressure acting on diaphragm 34 attains a predetermined maximum. Closures 65, 64 are urged to the closed position by a common spring 66, and each closure carries a tappet 67, 68 which opens the appropriate closure by abutting against a fixed part of the device as the diaphragm 34 moves. The point at which closure 64 opens can be varied by adjusting the position of a block 72 forming the abutment for tappet 67, the block being carried on a stem 73 adjustable by a screw 76. Rotation of a handwheel 49 rotates a screw 46 to move a nut 45 up or down and so vary the loading effect of a spring 43 on the diaphragm 34. To prevent nut 45 from rotating, it is made hexagonal in shape and fits closely in an hexagonal casing. Diaphragm 80 actuates a spring-loaded valve 91 through a tappet 87, this valve serving to control the supply of pressure fluid from a line 23 to a line 24. The above system is shown applied to the control of the pressure in a main 20, Fig. 1, which receives combustible vapour from a supply 10, this supply passing a cut-off valve 13, an aspirator 16 which draws in air past a check valve 18, and a venturi 19 which reduces the pressure somewhat. The high pressure vapour is also supplied past a pressure reducer 22 to the line 23, and line 24 leads an actuating pressure to a regulator 12 controlling the valve 13. The space under diaphragm 80 is kept at the outlet pressure above diaphragm 34 by means of a passage 83, and the gas vented by the pilot valve is led off through a pipe 102 to a burner 100. The nature of the flame at this burner gives an indication of any fault that might develop in the control system.
Patent GB-308946-A (GB)
Title: An improved collapsible table
IPC: A47B5/04
Filed: 1928-08-27
Abstract: 308,946. Orton, F. A., and Thorne, R. C. Aug. 27, 1928. Studs and set screws. - Screws 30 of the form shown are utilized as pivot devices.
Patent GB-336707-A (GB)
Title: Swivel key hooks
IPC: A45C11/32
Filed: 1929-08-13
Abstract: 336,707. Lorber, C. Aug. 13, 1929. Hooks, closed. - A switch hook for use as a beyholdor has the stem 17 of the swivel ring passing through the material of the upper end of the hook 10. The hook is formed with a dependent portion 11 which contacts with the bill 15 closing the hook.
Patent GB-712233-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L9/10
Filed: 1950-10-10
Abstract: 712,233. Suction cleaners. SENNE, E. P. Oct. 10, 1950, No. 24703/50. Classes 8 (1) and 8 (2). A suction cleaner filter bag 17, Fig. 3, is automatically ejected through an opening 94 in the end of the cleaner casing by means e.g., a fan 15 discharging through an open door 54 when a door 61 normally closing the opening 94 is opened by means e.g., a slotted lever 57, Fig. 2, engaging a door bracket 60 actuated by control means e.g., a solenoid 32 and switch 80 responsive to a pressure drop across the filter. The fan 15 normally draws from the filter compartment 13 through an open door 47 but during bag ejection this door is closed and the fan draws through louvers 48 previously closed by said door 47. which together with the door 54 is actuated by the solenoid 32 through shafts 39, 42, 46, 50, 53 and gearing 33, magazine 96 into register with the suction inlet 36, 40, 41, 43, 44, 45, 49, 52. Following ejection of a used filter bag 17 a fresh bag collapsed in a box 21 is carried by a carriage 24 from a 16 and is inflated by the fan 15 prior to use. The carriage 24 comprising lower and upper plates 97, 98, Fig. 5, box-engaging spring clips 28 and walls 29 is moved laterally by the solenoid actuated lever 57 along fixed upper and lower rails 26, 27 until a rim 120, Fig. 6, and rubber sheets 114, 115 of the box 21 are penetrated by a movable head 67 of the normal dust-laden air inlet manifold 16 to allow inflation of the bag 17. The head 67 carries pins 69, 70 by which it is retracted prior to bag ejection by carriage wedges 71, 72, and a surface 73 further retracts the head 67 prior to the latter being sealed by a surface 74 during bag ejection. The pressure switch 80 is operated by a manually adjustable spring bellows 75 having its interior open to atmosphere through casing apertures 78 and its exterior open to the filter compartment 13. The switch 80 initiates the start of the cycle and a time switch 81 actuated by the lever 57 at its extreme position maintains current through the solenoid for sufficient time e.g., two seconds to allow the box 21 and the bag 17 to be ejected. To prevent initiating the cycle unnecessarily e.g., on temporarily blocking the suction hose, an air bleed valve 87 when open provides access of atmospheric air to the suction inlet 16 through a pipe 89. The operating cycle may be effected manually by an arm 105. Specifications 645,847 and 712,270 are referred to.
Patent GB-991406-A (GB)
Title: Improvements in centrifugal pumps
Inventor: CARSLAW CHARLES HENDERSON
IPC: F04D29/44
Filed: 1960-07-16
Abstract: 991,406. Centrifugal pumps. DRYSDALE & CO. Ltd. July 17, 1961 [July 16, 1960], No. 24846/60. Heading F1C. In a centrifugal pump, one of the side walls of the volute passage is constituted by one surface of a cover which presents a spigot engageable in the pump casing, the extent of penetration of the spigot in the pump casing being adjustable, in the direction of the pump axis, by the use of spacers or the like between the casing and the cover to permit the crosssectional area of the volute passage to be varied, and one of the side walls of the volute passage is in the form of a helical surface. In the centrifugal pump shown, the volute 2 is concentric with the impeller axis and of constant radial dimension, the increase of crosssectional area around the volute being obtained by providing a helical side wall 8. The other side wall 9 is flat and disposed in a plane at right angles to the impeller axis and is formed on a cover 10. If the pump is required to be of smaller capacity, the penetration of the cover spigot 12 into the pump casing 11 is increased by the use of a narrower spacer 13, thereby reducing the cross-sectional area of the volute. The blades of the impeller 5 are correspondingly reduced in width by machining the impeller casting on the unshrouded side. In the case of a double-shrouded impeller, the reduction of impeller width is obtained by the use of a different casting pattern. Pumping pressure may be altered by the use of an impeller of different diameter.
Patent GB-205299-A (GB)
Title: Improvements in mouth pieces for chaff cutting machines
IPC: A01F29/10
Filed: 1922-09-14
Abstract: 205,299. Appleton, J. Sept. 14, 1922. Chaff, cutting.-The sides 2, 3 and bottom 7 of a mouthpiece for chaff-cutters converge towards the cutters, and bevelled angle-pieces 6 are fitted at the angles in order to offer resistance to the passage of the hay at those points and deflect it towards the centre.
Patent GB-742100-A (GB)
Title: Improvements in or relating to mountings for face plates on vertical boring and turning or like machines
IPC: F16C19/54
Filed: 1953-09-08
Abstract: 742,100. Bearings. ARN JUNG LOKOMOTIVFABRIK GES. Sept. 8, 1953 [Sept. 11, 1952], No. 24875/53. Class 12 (1). [Also in Group XXII] A face plate 5 of vertical boring, turning and like machine has a spindle 9 and is mounted on a support 4 on the machine frame 1 by ball or roller bearings 17, 12. The peripheral bearing 12 carries both axial and radial loads and is preloaded through the bearing 17 by a nut 11 on the spindle. The face plate is rotated by a motor and pinion engaging bevelgear ring 7 fixed to the plate. Bearing 12 may be replaced by a taper roller bearing.
Patent GB-617636-A (GB)
Title: Improvements in electro magnetic wave-guides
IPC: H01P1/12
Filed: 1946-08-21
Abstract: 617,636. Wave-guides. MILLER, C. W., and METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Aug. 21, 1946, No. 249.19. [Class 40 (v)] A two-way switch for a wave-guide H-teejunction comprises a block 1 slidable between two positions in each of which one arm X, Xl of the cross-member is blocked. The block 1 is provided with deflecting surfaces 2, one of which lies across the right-angled corner formed in either position of the block. A rectangular extension 3 of the block forms a continuation of the wall of the main wave-guide Y, and the width of extension 3 is made equal to a quarter wavelength to prevent leakage. The upper surface of the block 1 is machined out, leaving contact pieces 6. The block may be actuated by any suitable toggle arrangement operating a member fixed to the block by screws passing through a slot in the upper wall of the waveguide. The slot is sealed by extension pieces, and adjustable stops are provided to limit the travel of the block. A similar arrangement may be used for an E-tee-junction.
Patent GB-1041429-A (GB)
Title: Pure fluid computer
IPC: F15C1/00
Filed: 1964-06-16
Abstract: 1,041,429. Fluid switches. SPERRY RAND CORPORATION. June 16, 1964 [June 19, 1963], No. 24926/64. Heading G3H, (Also in Division G4] In boundary layer effect switching gates, the provision of constructions in the inlets for the two signals A, B provides an output A. B (Fig. 7 not shown) whereas straight input channels provide an output A + B (Fig. 6 not shown). Side control channels providing streams impinging on a power stream provide a bi-stable flip-flop (Fig. 4 not shown). Bleed outlets in the outlets of the gates prevent back-loading. A finger closed key 354 (Fig. 10 not shown) prevents release of pressure through the key outlet and thus produces a pressure pulse in the apparatus.
Patent GB-718262-A (GB)
Title: Improvements in signalling apparatus used in automatic telephone exchanges
Inventor: SCOWEN FRANK
IPC: H03K17/54
Filed: 1950-10-12
Abstract: 718,262. Automatic exchange systems. POSTMASTER-GENERAL. June 12, 1952, [Oct. 12, 1950], No. 24954/50. Class 40 (4). An automatic exchange employing a modulated pulse-train time division multiplex system comprises means for recognising the presence of a pulse train by detecting the fundamental, a harmonic or a selected combination of the fundamental and harmonies of the pulse repetition frequency of the pulse train. As shown, Fig. 1, the incoming pulses are applied to the diode D and if their amplitude exceeds the bias provided by battery B1 cause the condenser resistance combination C1-R1 to feed saw-tooth waves to the amplifier Al. The output of the latter is fed to a low-pass filter F, whose output Sp consists of the modulation envelope of the pulses, and also to the band-pass filter F2 which selects one or more harmonics for use as a signalling current over Sg. In a modification (Fig. 2, not shown) the output of the filter F2 is rectified and used to enable a normally back-biased oscillatory circuit to provide the signalling current. In a further modification (Fig. 3, not shown) the rectified output from the filter F2 is used to open a normally closed attenuation network inserted between a source of A.C. and the signalling wire Sg. The filters Fl and F2. may be combined, e.g. by providing a low-pass filter having a parallel resonant circuit in its series arm, and a capacitor in its shunt arm the harmonic frequency being obtained by a coupling to the inductance of the resonant arm, Fig. 4 (not shown). A circuit incorporating this feature for use in conjunction with pulses from a modulator as described in Specification 718,269, [Group XL (c)], is also indicated, Fig. 5 (not shown). This circuit employs a shunt diode in combination with a resistance capacity network for providing the required saw-tooth wave form. Specifications 694,092 and 707,379, [Group XL (c)], also are referred to.