baber/WOPTO huggingface dataset:
Patent GB-1431991-A (GB)
Title: Machine assembly including a device for fastening and locking  a cylindrical member therein
IPC: F16H57/02
Filed: 1973-03-28
Abstract: 1431991 Rotary percussion tools ACIERS ET OUTILLAGE PEUGEOT 28 March 1973 [26 June 1972] 14948/73 Heading B4C [Also in Divisions F2 and B3] A cylindrical member 14 (e.g. a bearing bushof a percussion drill) which is subjected to torque is held in a casing 6, 7 of a machine by engagement of thrust surfaces 13, 16 of the casing and member, the arrangement being such that when torque is applied a screwing action between the casing and member maintains the thrust surfaces in abutment. The easing consists of two half-shells each having a semicylindrical cavity in which the cylindrical member is located. Screw threads 12 are provided on the surfaces of the member and the cavities.
Patent GB-646485-A (GB)
Title: Improvements in or relating to splices for rope ends
IPC: B65H69/06
Filed: 1948-06-03
Abstract: 646,485. Splicing ropes. AMERICAN CHAIN & CABLE CO., Inc. June 3, 1948, No. 15010. Convention date, Feb. 10, 1948. [Class 109] A splice for two rope ends A, B is made by passing the strands of the splayed portion of each rope end between the strands of the splayed portion of the other rope end, helically disposing the strands in the valleys of the laid portion of the other rope end and then securing the strands of the splayed portion of each rope end in the valleys of the underlying laid portion of the other rope end. The securing means preferably comprise ferrules 10. The rope ends are preliminarily prepared, as shown in Fig. 1, by applying a ferrule 10 to each rope end, seizing each rope end at 11 at a suitable distance, unlaying the strands from the core 12 back to the seizing 11, and finally cutting the core 12 of each rope near the seizing. The rope ends are then "married," as shown in Fig. 2, by passing the strands 1a-6a of the rope A between the strands 1b-6b of the rope B. The seizing 11 is then removed and each strand of one rope is wrapped around the laid-up portion of the other rope so as to lie in the helical valleys between the strands of that rope. In the resulting splice, any strand is preferably laid in the valley between the pair of strands it was placed between in the " marrying '' step. The above process is then performed on the other end of the splice. Finally, the ferrules 10 are compressed around the free ends of the outer strands, with or without an additional ferrule at the centre of the splice. The ropes A and B may be two separate ropes to be joined or may be the ends of the same rope, particularly when making grommets intended for slings. The splice is intended particularly for wire ropes and the individual strands thereof may be single wires.
Patent GB-561067-A (GB)
Title: Improvements in eccentric gear mechanism
IPC: B65H23/18
Filed: 1942-10-30
Abstract: 561,067. Toothed gearing. GRODZINSKI, P. Oct. 30, 1942, No. 15233. [Class 80 (i)] Eccentric toothed gearing for producing cyclic variation of speed, comprises three or more circular spur or helical involute gears the axes of rotation of which are uniformly displaced from the actual centre of the gear body by a distance within the limits of 0.05 and 0.1 of the pitch circle radius, while in the position for setting the gearing, the centres of the wheels and the rotating shafts lie on a straight line. This setting position is shown in Fig. 4, where the shaft centres 2 .. 4 and wheel centres 8 .. 10 are in line, the wheel 5 being the driver. A reverted train is shown in Fig. 5, the driving wheel 4 and driven wheel 7 being coaxial and the wheels 5, 6 being connected together by a bolt 16.. In a further modification, the wheels merely oscillate, the driver being connected by linkwork to a crank. In a still further modification, bevel wheels are employed. The Specification explains that, with the small eccentricities used; excessive backlash is avoided, the flank clearance lying within permissible values.
Patent GB-151686-A (GB)
Title: Screens for optical projections
IPC: G03B21/60
Filed: 1919-12-09
Abstract: 151,686. Cooper, T., and Slater, A. Dec. 9, 1919. Optical-projection apparatus.-A screen has a framework of concave spherical formation upon which is a layer of expanded metal or the like carrying the screen material. The screen material may be absorbent, and may consist of 9 lbs. of washed whitening, 3 lb. of superfine plaster, 4 oz. of superfine asbestos, and “ oz. of cream of tartar. The ingredients are mixed with water, and applied to the expanded metal in a plastic state, the surface being finished to a concave spherical shape. A cavity may be provided behind the screen through which heated air is passed to dry up the moisture.
Patent GB-712811-A (GB)
Title: Improvements in or relating to the production of uranium compounds
Inventor: HARVEY BERNARD GEORGE
IPC: C01G43/06
Filed: 1943-09-17
Abstract: Uranium tetrafluoride is prepared with a reduced amount of impurities by reducing sufficient of the uranyl salt in an aqueous uranyl salt solution to cause a small fraction (1-5 per cent.) of the uranium to be precipitated as uranium tetrafluoride, removing the precipitate which is rejected, and then precipitating and recovering the remainder of the uranium tetrafluoride.  Stannous chloride or zinc in acid solution may be used as reducing agent. Thus, uranium oxide may be dissolved in mineral acid, an oxidizing agent added to bring the uranium to the hexavalent condition, and aqueous HF is added and the reduction carried out near boiling point.  Specifications 696,053 and 704,741 are referred to.
Patent GB-361834-A (GB)
Title: Improvements relating to the application of bias to an electrode of a thermionic valve
IPC: H04B1/16
Filed: 1930-05-19
Abstract: 361,834. Valve amplifying circuits. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and McDONALD, D., 22, Holbrook Avenue, Rugby. May 19, 1930, No. 15334. [Class 40 (v).] In order to maintain the desired potential relations between the screen grid and anode of a screen-grid valve an impedance Z2 is connected between the anode side of the anode impedance Z1 and the screen grid. A condenser C, which may be shunted by a resistance R, may be connected between screen grid and cathode. The invention enables different types of screen-grid valves to be interchanged while keeping fixed proportionality between anode and screen grid voltages.
Patent GB-768230-A (GB)
Title: Improvements in and relating to apparatus for cutting or working electrically conductive materials
Inventor: RUDORFF DAGOBERT WILLIAM ALFRE
IPC: B23H1/02
Filed: 1953-06-03
Abstract: 768,230. Cutting by spark discharge. SPARCATRON, Ltd. Jan. 27, 1955 [June 3, 1953], No. 15354/53. Class 83 (4). Apparatus for the electro erosion of metals, particularly metal carbides, tool steel and stainless steel by electric spark discharges from a capacitance 3 across a gap between an electrode 1 and workpiece 2, has at least two spark gaps in series in the discharge circuit. One or more additional spark gaps 6, 7 may be provided in a direct current supply circuit, Fig. 5. In an alternating current supply circuit, Fig. 4, an electrode 1 is connected through an additional spark gap 6 with one side of the capacitance 3 and another electrode 10 is connected to the other side. The workpiece 2 is earthed. An inductance 11 may be provided in the discharge circuit and/or in the charging circuit to render the circuit resonant. The additional spark gaps may be air gaps or they may be immersed in a liquid dielectric or electrolyte contained in receptacles 12, 13. Preferably the additional spark gaps consist of tungsten electrodes immersed in paraffin whose dielectric strength has been decreased by a colloidal suspension of graphite, the paraffin being circulated through the gap by a stirring device. Alternatively one or more of the additional gaps may be formed by_rotary interrupter electrodes, Fig. 6 (not shown). Rectifiers may also be included in the discharge circuit. The additional gap or gaps may-have means for automatically maintaining the gap or gaps constant or at predetermined different widths and automatic means may be provided for cleaning the electrodes. In rotary interrupter type gaps the speed of the interruptions may be varied. A protective casing may be provided for the workpiece and/or its electrode and/or the additional gaps and a safety device thereon renders the apparatus inoperative when the casing is out of position. Specifications 637,872 and 756,727 are referred to.
Patent GB-144658-A (GB)
Title: Improvements in the manufacture and production of yellow colouring matters for dyeing animal fibres
IPC: C09B55/00
Filed: 1920-06-08
Abstract: Triphenylmethane dyes are obtained either by condensing sulphonated aromatic aldehydes with o-nitraniline or derivatives thereof having a free p-position, or by condensing unsulphonated aromatic aldehydes with o-nitraniline or derivatives thereof having a free p-position and sulphonating the product.  In the second case, the condensation product is a mixture of the product from one molecular part of aldehyde and two molecular parts of o-nitraniline with other products which probably result from further reaction of the aldehyde; the crude mixture can be sulphonated or can be separated into its constituents, e.g. by means of hydrochloric acid, before sulphonation.  According to examples:-benzaldehyde is condensed with o-nitraniline, and the product is sulphonated, or the product is separated into its constituents by hydrochloric acid, and the separated constituents sulphonated.  The products dye wool yellow shades.  The Specification as open to inspection under Sect. 91 (3) (a) describes also the condensation of benzaldehyde-m-sulphonic acid with 3-chlor-6-nitraniline.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1392361-A (GB)
Title: Method of and apparatus for cutting away roads surfaces
IPC: E01C23/088
Filed: 1972-04-04
Abstract: 1392361 Road surface cutting machines R WIRTGEN 4 April 1972 [16 April 1971 11 Sept 1971 26 Jan 1972 (2)] 15530/72 Heading E1G In a road surface milling machine wherein a chassis 1 mounted on endless tracks or road wheels 2, 3 carries a rotary cutter 7 driven about a generally horizontal axis in a direction opposite to that of the road wheels, the cutter 7 is mounted in a frame or arms 8 so pivoted to the chassis that the cutter 7 is vertically and transversely tiltably adjustable, the frame or arms 8 being supported by at least one front or rear depth-of-cut wheel 12 which engages the road surface and is vertically adjustable during use of the machine by hydraulic or screw jack mechanism 13. The cylindrical cutter 7, Fig 2 (not shown), carries a helical or other array of hard metal teeth, (II), cut material being built up in front of the cutter and then transported rearwardly by the cutter itself-whereafter it may be diverted by plough blades not shown. In Fig 1 the cutter 7 is mounted in a pair of arms 8 independently adjustable for transverse tilting cylinder 9. In the modification of Fig 4 the cutter 7 is mounted in a frame 17 which can be tilted by a jack 40 about a longitudinal axis 31 on a support 32 welded to an upper frame 39 pivotally suspended from the chassis Fig 3 (not shown) on a transverse axis (46) by arms 41, 42. The cutter 7 may be driven by an independent motor but as shown is chain driven from transverse shafts 22, 23 geared to an engine output shaft 30.  In a further modification, Fig 5 (not shown), the cutter (7) is mounted in a frame (17) suspended beneath the chassis by a universal joint (47) and transversely spaced cylinders (50, 51) allowing height adjustment and transverse tilting. In a still further modification Figs 6, 7 (not shown), the cutter (7) is wider than the vehicle chains and is pivotally suspended for height adjustment beneath a horizontal manually or motor-driven ring mounting (61) tiltably mounted in the chassis (59, 60) whereby the cutter (after disconnection of its, drive) can be swung about the vertical axis of the ring to lie in-board of the chassis during transit. Limit switches may be provided to ensure correct transverse alignment.
Patent GB-1124532-A (GB)
Title: Fuel system for a gas turbine engine
Inventor: SKINNER ROBERT THOMAS JOHN
IPC: F02C7/22
Filed: 1966-04-07
Abstract: 1,124,532. Gas turbine engine fuel systems. JOSEPH LUCAS (INDUSTRIES) Ltd. April 28, 1967 [April 7, 1966], No. 15543/66. Heading F1G. A fuel system for a gas turbine engine comprises a main burner manifold 10, a starter burner manifold 11 and a fuel pump 12 for supplying fuel to the manifolds. The pump comprises a casing 21 and an impeller 23 rotatably mounted therein, the impeller having blades 24 at its periphery. The pump comprises a pair of pumping zones 13, 14 defined by a pair of diametrically opposed arcuate channels 25. A pair of tangential outlet passages 15, 16 extend from the pumping zones 13, 14. The outlet passage 16 is connected to the main burner manifold 10, and the outlet passage 15 is connected to the starter burner manifold 11, also, through a valve 18 which permits fuel to flow only when the fuel pressure in the outlet passage 15 exceeds a predetermined value, to the main burner manifold. The starter burner manifold 11 has associated therewith a valve 11a which is operable to cut off the manifold 11 so that the total output of the pump is supplied to the main burner manifold. The output of the pump is controlled by varying the volume of the arcuate channels associated with the pumping zones 13, 14.
Patent GB-899870-A (GB)
Title: Improvements in or relating to vehicle beam axle suspension systems
Inventor: WORDSWORTH JACK
IPC: B60G15/00
Filed: 1960-05-03
Abstract: 899,870. Road vehicle spring suspensions; adjusting vehicle height. ARMSTRONG PATENTS CO. Ltd. April 17, 1961 [May 3, 1960], No. 15644/60. Class 108(2). A vehicle suspension system comprises a beam axle 10 with lever-operated hydropneumatic suspension means 22 and separate independent axle locating means. The axle may be located by a pair of longitudinal leaf springs 14 of low spring rate or by trailing arms and a Panhard rod. The hydropneumatic spring/damper device 22 which is preferably of the type described in Specification 870,554 has a spindle 24 rockable by link 28 and lever 26 in response to axle movements, rocking of the spindle moving a piston in a cylinder against hydraulic fluid the pressure of which is cushioned by a mass of compressed air in a resilient chamber. Within the device is mechanism for conthe vehicle height comprising a hydraulic pump and a relief valve actuated by spindle 24 controlling the flow of fluid to and from a hydraulic fluid reservoir and the cylinder.
Patent GB-612459-A (GB)
Title: A new or improved arrangement of petrol or fuel tank and spare tyre carrier or support
IPC: B62D43/10
Filed: 1946-05-24
Abstract: 612,459. Arrangement of fuel tanks and spare tyre carriers on vehicles. JOWETT CARS, Ltd., and PALMER, G. M. May 24, 1946, No. 15749. [Class 103 (ii)] In a motor vehicle a spare wheel 1 and fuel tank 3 are arranged in the same plane under the luggage carrier 2. The wheel 1 is housed in a casing 6 and the fuel tank is placed alongside it, the lengths of the casing 6 and fuel tank being approximately the same.
Patent GB-691446-A (GB)
Title: Improvements in and relating to dynamo-electric machines
IPC: H02K15/16
Filed: 1951-07-03
Abstract: 691,446. Cores for dynamo-electric machines. BRITISH THOMSON-HOUSTON CO., Ltd. July 3, 1951 [July 7, 1950], No. 15762/51. Class 35. In order to obtain an accurate air gap between a rotor and a stator of a dynamo-electric machine the stator laminated core is mounted and welded to the machine frame by assembling this core on a dummy rotor having a diameter equal to the machine rotor plus twice the air gap length and a shaft diameter substantially equal to that of the rotor. Fig. 2 shows a stator core 5 positioned on a dummy rotor 9 and joined to a frame 1 by welding or application of quick thermoplastic or thermosetting compounds. Alternatively, as shown in Fig. 3, the core 5 is connected to a thin shell 12 made, e.g. of steel by melting down the latter as at 14 against the core 5 using, e.g. helium arc-welding process. Or, the shell member 12, Fig. 4 (not shown), is provided with indentations 16 preferably preformed welded to the core 5. The welding may also be employed through holes drilled in the shell 12.
Patent GB-185517-A (GB)
Title: An improved door bolt
IPC: E05C1/04
Filed: 1921-06-08
Abstract: 185,517. Peters, A. June 8, 1921. Sliding bolts. - The casing a of a sliding bolt b is formed by twisting a strip of mild steel or brass into the form of an open spiral. The handle h of the bolt travels in the open part of the spiral, and may be retained in a notch in the spiral case. The bolt is arranged to serve as either a left-hand or right-hand bolt. The handle h may have a slot to engage over a staple to be secured, according to the Provisional Specification, by a padlock.
Patent GB-249713-A (GB)
Title: Luminous disk
IPC: F21V9/16
Filed: 1925-06-18
Abstract: 249,713. Morgenstern, W. June 18, 1925. No Patent granted (Sealing fee not paid). Phosphorescence and fluorescence, apparatus for lighting by.-A luminous disc for use as an emergency light consists of a convex disc b mounted in a frame c and painted on the back with a luminous paint, such as a radio-active substance or a phosphorescent material mixed in some cases with colouring material. The coating a is covered with a material d, such as gypsum paste, which protects paint against weather and prevents passage of luminous rays, and a disc e is fixed at the back.
Patent GB-1500501-A (GB)
Title: Crane load indicating arrangement
IPC: B66C23/90
Filed: 1974-04-10
Abstract: 1500501 Indicating safe loads in jib cranes PYE (ELECTRONIC PRODUCTS) Ltd 24 Jan 1975 [10 April 1974] 15845/74 Heading B8H [Also in Division G1] Resistance strain gauges 19-22 are arranged, on the boom of a crane or other lifting apparatus with a pivoted boom luffed by an hydraulic ram or other boom supporting means, so as to be strained as a junction of the shear stress produced in the boom but independently of the bending moments thereon. The gauges are connected in a bridge circuit 17 whose output is divided by a signal representing cos # where (L) is the boom luff angle, the resulting quotient having subtracted from it a signal representing the weight of that part of the boom between the transducer location XX<SP>1</SP> and the outer end of the boom to provide on meter 41 a display of hook load, W. This latter signal is compared with the maximum safe working load (MSL) as determined by a low generator of a mode unit 43, Fig. 5 (not shown) and the resultant signal is displayed on meter 44 indicating overload, equality, or available lifting capacity, and is fed to unit 45 which gives an alarm when MSL is reached or exceeded. The unit may indicate loads in excess of a given percentage of MSL and may also include a trip for the hoist motor. Boom luff angle, load radius and extension are determined by variable potentiometers 26, 34 respectively and displayed by meters 30, 48.
Patent GB-620656-A (GB)
Title: Modulating system for radio beacons
IPC: G01S1/02
Filed: 1944-08-18
Abstract: 620,656. Radio navigation. STANDARD TELEPHONES & CABLES, Ltd. Aug. 18, 1944, No. 15863. Convention date, Aug. 26, 1943. [Class 40 (vii)] In a system for providing a carrier wave modulated with two different signals, for use, for example, in defining a course line for aircraft approach and landing, a modulator system is fed with a carrier frequency and two signal frequencies, and provides one output comprising the carrier frequency and the two pairs of side-bands corresponding to the two signal frequencies, and another output comprising only the said two pairs of'side-bands with one pair reversed in phase with respect to the corresponding pair in the first output. The two outputs are fed to conjugate input points of a bridge network, one of the sides of which includes a phase reverser. There are thus derived at two independent output points the carrier and one of the pairs of side-bands, with different pairs at the respective points. Referring to Fig. 1, 10 and 11 are sources of modulating frequency, e.g. 90 and 150 c/s, both of which are fed via lines 15 and 16 to an unbalanced modulator 13 and a balanced modulator 14, the said modulators being fed with the same carrier from a source 12. The line 16 is transposed at 18 so that the 150 c/s frequency fed to the balanced modulator 14 is reversed in phase with respect to the 150 c/a frequency fed to the unbalanced modulator 13. In the output of the unbalanced modulator 13 there appears the carrier and the side-band components corresponding to both the 90 and 150 c/s frequencies, whilst in the output of the balanced modulator 14 there appears only the said side-band components with the side-band components corresponding to the 150 c/s frequency in phase opposition to the side-band components corresponding to the latter frequency at the output of the modulator 13. The outputs from the two modulators are applied respectively to conjugate input terminals 21, 22 of a balanced bridge network 20, that from the modulator 14 passing through a phase shifter 17. One of the arms of the bridge 20 is transposed at 24, whereby there appears at one output terminal 23 of the bridge the carrier and the total side-band energy corresponding to the 90 c/s frequency, the sideband energy corresponding to 150 c/s having cancelled out, whilst at the output terminal 24 there is obtained the carrier and the total sideband energy corresponding to the 150 c/s frequency, the other side-band energy having cancelled out. The two differently modulated signals may be applied via lines 25 and 26, for example, to an equi-signal course beacon of the type disclosed in Specification 563,007 or, as in Fig. 2 (not shown), to an equi-signal glide-path beacon of the type disclosed in Specification 590,491. Monitoring means, comprising a loop 27, a filter 28 tuned to the unwanted sidebands, and a meter 29, may be provided to test for any unbalance, which may then be corrected by adjustment of phase-shifter 17.
Patent GB-780679-A (GB)
Title: An improved non-refillable closure for a container
IPC: B65D49/06
Filed: 1955-06-03
Abstract: 780,679. Non-refillable bottles. SILICANI J. B. D. L. June 3, 1955, No. 15920/55. Class 66. A non-refillable closure for a bottle comprises lower and upper members 7 and 8 hous ing a ball 10 that rests on a valve 9 to seal an opening 15 in the lower member, there being a concave head-piece 6 in the upper member 8 spaced from the ball 10 but serving as an inclined plane when the bottle is horizontal to cause the ball 10 to push against the valve 9 and maintain it in its closed position. The,headpiece 6 seats into and is located centrally by a shallow recess 14 in the top of the lower body member 7, the head-piece 6 and the recess 14 being of less diameter than the interior of the upper body member 8 to form an annular space 18 through which liquid may flow when the bottle is tilted beyond. the horizontal position. The head-piece 6 is held in the recess . 14 by projections 22 in the upper body 8. The upper body 8 increases in diameter at the bottom by a stepped formation, thereby presenting a recess 13 into which fits a flange 24 on the top of the lower body member 7. The stepped formation serves as an anchorage for a retaining band for securing the closure on a bottle. Alternatively the upper body member 8 may have a cylindrical bottom extension serving to encompass the neck of a container and being so constructed that it secures the closure in place.