baber/WOPTO huggingface dataset:
Patent GB-1134720-A (GB)
Title: Vibration damper assembly
IPC: F16D13/68
Filed: 1966-04-19
Abstract: 1,134,720. Damped resilient couplings. BORGWARNER CORP. 19 April, 1966 [25 May, 1965], No. 17171/66. Heading F2U. An automotive friction clutch plate 14 is yieldingly connected to a flanged hub 11, 13 by circumferentially disposed torque - cushion volute springs 35 received in apertures 30, 31, 32 in the flange 13, plate 14 and a disc 16 secured to the plate 14 by spacer rivets 17 which locate in elongated recesses 18 in the centre flange 13, annular friction discs 19, 20, sandwiched between the hub flange 13 and outer plate and disc 14, 16, serving to damp out torsional vibrations. The volute springs 35 may be tightly wound to produce frictional engagement between adjacent coils to increase damping. Further, the springs 35 may have residual stresses induced therein, during manufacture, to increase fatigue life. Button washers 40, 41 piloted in the small end of each spring locate the spring. Fig. 3 (not shown) illustrates the load/ deflection curve of the springs showing the rapid increase in torsional resistance as each coil of the springs bottoms.
Patent GB-716032-A (GB)
Title: Improvements in and relating to packing rings
IPC: F16J15/20
Filed: 1951-07-20
Abstract: 716,032. Stuffing-box packing. ARMSTRONG'S PATENTS CO., Ltd., and CLARKE, F. A. July 4, 1952 [July 20, 1951], No. 17245/51. Class 122(5) A shaft packing ring 10 is grooved on its working face to form one or more first lips 11, 12 having a face at one side thereof radial to the axis of the ring and a tapered face at the other side and two or more second lips 13, 14, 15 having corresponding faces conversely orientated to those of the first lip or lips, all the lips having an intermediate land parallel to the axis of the ring.
Patent GB-120954-A (GB)
Title: An Improved Bevel Protractor.
Inventor: TREACHER FREDERICK JAQUES
IPC: G01B3/02
Filed: 1917-11-23
Abstract: 120,954. Treacher, F. J. Nov. 23, 1917. Angle-measuring appliances.-An apparatus for measuring and setting-cut angles comprises a strip having another strip pivoted at each of its ends B, C, one of the end strips having a slide A pivoted to it and moving over graduations E on the other end strip which indicate the angles formed by the end strips and the middle strip. A level D may be provided as shown.
Patent GB-1128463-A (GB)
Title: Improvements in and relating to the production of dicarboxylic acids
Inventor: MARRIAN STANLEY FREDERIC
IPC: C07C51/31
Filed: 1965-04-23
Abstract: 1,128,463. Aliphatic dicarboxylic acids. BRITISH HYDROCARBON CHEMICALS Ltd. 30 March, 1966 [23 April, 1965], No. 17267/65. Heading C2C. Aliphatic dicarboxylic acids are prepared by oxidizing a cycloalkane sulphonic acid, or a salt thereof, with molecular oxygen which is substantially free from SO 3 , at an elevated temperature. An initiator, e.g. hydrogen peroxide, may be included in the reaction mixture. Monosulphonic acids yield a dicarboxylic acid having the same number of carbon atoms, although other dicarboxylic acids having fewer carbon atoms may also be obtained. Polysulphonic acids may also be used. It is preferred to effect oxidation at 90-200 C. under sufficient pressure to maintain the sulphonic acid, or an aqueous solution thereof, in the liquid phase. Examples relate to the preparation of adipic acid from cyclohexane sulphonic acid and a mixture of oxalic, malonic, succinic, glutaric, adipic, pimelic and suberic acids from cyclooctane sulphonic acid. Oyclohexane- and cyclooctane-sulphonic acids are obtained by the sulphoxidation with SO 2  and O 2  of cyclohexane and cyclooctane respectively.
Patent GB-151124-A (GB)
Title: Improvements in rotary engines
IPC: F01C1/356
Filed: 1919-07-10
Abstract: 151,124. Whittell, A. L. July 10, 1919. Movable-abutment type; packing; valves, distributing and cut-off.-Relates to engines of the outwardly-sliding abutment type, in which the abutment is actuated by a cam and lever mechanism from the main shaft, and the distributing- valve for the motive fluid is operated by an eccentric on the main shaft. The abutment is automatically withdrawn from the cylinder, when the gearing connecting it with the main shaft breaks down. A cylinder A is fitted with a piston B which is connected to the main shaft M by a crank C and pin P, and has spring-pressed packing rings J. Motive-fluid is admitted by the valve D, which is actuated by the eccentric E. The sliding abutment F is operated by the cam G and the spring H. A weight is fitted at the end of the lever H<1> to withdraw the abutment F automatically, should the spring H break. A guard L encloses the main shaft..
Patent GB-295798-A (GB)
Title: Improvements in and relating to devices for fixing objects such as coat or hat hooks, electric switches, ceiling roses, and other objects to walls, partitions and ceilings composed of laths and plaster
IPC: F16B13/08
Filed: 1927-06-30
Abstract: 295,798. Miller, A. W. June 30, 1927. Hooks fixed to walls .and flat surfaces.-A device for attaching fixtures to walls comprises a back plate to take against the back of the wall, to which plate is rigidly secured a threaded rod adapted to pass through the wall, said rod being provided with a front plate and a securing nut whereby the device may be secured to the wall and the threaded rod adapted to carry the desired fixture. The metal plate a has riveted to it the screwed rod b and is adapted to bear against adjacent laths of a plaster wall f. 'The rod is passed through the wall and secured by the front plate c and nut d. On an extension of the rod is mounted a block g which is countersunk and secured by a conically headed nut e. The plates a and c may be roughened or provided with a number of small spikes. For securing cables the block g is replaced by a suitable bonding clip.
Patent GB-1502263-A (GB)
Title: Steam humidifers
IPC: B01D45/06
Filed: 1974-04-19
Abstract: 1502263 Steam generation CALOMAX (ENGS) Ltd 20 March 1975 [19 April 1974] 17353/74 Heading F4A In a steam tank 14 for a steam humidifier at least one removable, internal arcuate-shaped baffle 42 is secured at an end region to a removable portion 44 of an end wall portion of the tank such that the removal of the wall portion 38 results in removal of the baffle 42 for cleaning purposes. The steam humidifier is provided with a cold water tank 12 and a steam tank 14. Cold water flows from the tank 12 to a supply pipe 20 and a branch line 20A leads from the pipe 20 into the steam tank 14. A water level gauge for the humidifier is provided by a translucent plastics tube 24. The steam tank 14 is provided at its bottom region with a drain connection pipe 28 and at its top region with a steam outlet pipe 32. Each side wall 36 of the steam tank 14 is provided with a V-shaped recess 36A which forms a baffle for the upward flow of steam from the bottom of the steaming chamber. The steam is generated by the heat supplied by an electrical heating element unit carried by a removable portion 40 in one of the end walls 38. A known control system, which enables the humidity of the atmosphere to be controlled, may be incorporated in the steam humidifier.
Patent GB-1158141-A (GB)
Title: Transistorized Signal Separator
Inventor: ATTEW JAMES EDWARD
IPC: H04N5/10
Filed: 1965-04-26
Abstract: 1,158,141. Transistor pulse discriminating circuits. AUTOMATIC INFORMATION DATA SERVICE Ltd. 22 July, 1966 [26 April, 1965], No. 17421/65. Heading H3T. A pulse width discriminating circuit, particularly for separating line and field pulses in television systems, comprises a compound pair of transistors VT 1 , VT 2  feeding an emittercoupled pair of transistors VT 3 , VT 4  having a resistance capacitance time constant such that shorter duration (line) pulses can be derived from the collector of VT 3  and longer duration (field) pulses from the collector of VT 4 . The signals at 11 passed by capacitor C 1  are D.C. restored by the base current of VT 1 . Capacitor C 2  is charged negatively via VT 3  during the non-pulse periods and discharged via R 4  during the pulse periods, the time constant being such that C 2  is only discharged sufficiently to render VT 4  conductive during the longer duration field pulses.
Patent GB-784883-A (GB)
Title: Apparatus for extracting air from fibre suspensions
IPC: D21D5/26
Filed: 1955-06-16
Abstract: 784,883. Extracting air from paper pulp &c. ESCHER WYSS GES. June 16, 1955 [June 24, 1954],.No. 17458/55. Class 96. Apparatus for extracting air from paper pulp &c., e.g. passing into the flow box of a Fourdrinier paper-making machine, comprises a chamber 3, from which air and some of the suspension is withdrawn by a pump 4, and a device 10 generating vibrations which facilitate the separation of the fibres from adhering air bubbles. The device may be a rotating perforated cylinder, e.g. rotating axially, a rotating and axially vibrating shaft carrying discs, a vibrating shaft carrying comb-like plates, a vibrating partition or perforated plate, or a sonic or supersonic wave generator.
Patent GB-640719-A (GB)
Title: Improvements relating to electric motor control systems for cranes and the like
IPC: B66C13/54
Filed: 1947-07-02
Abstract: 640,719. Brush-gear for electric motors. BRITISH THOMSON-HOUSTON CO., Ltd., and OLDHAM, T. J. F. July 2, 1947, No. 17475. [Class 35] [Also in Group XXXVII] A control system for a crane, hoist, or the like comprises a variable speed reversible polyphase commutator motor provided with movable brushgear, whereby speed control and reversing of the motor is effectable, and a manually operable controller for controlling the supply of current from a polyphase source to the motor, to a braking magnet associated with the motor, and to means for the control of the position of the brushgear, said controller being so arranged that initial movement from a neutral position in either the one or the other direction effects energization of the braking magnet to render the brake inoperative and then causes the motor to be connected to the supply for forward or reverse rotation, respectively, and at a low speed, while further movement of the controller completes connection from the supply to the means for the control of the position of the brush-gear whereby to move the brushgear and raise the speed of the motor to a higher value, restoration of the controller to the initial position deenergizing said means and enabling the brushgear to return to its initial low-speed position. The brush-gear of an A.C. commutator hoist motor M is shifted by a speed-regulating wheel SP which co-operates with a chain tensioned by a weight W<SP>1</SP> and fixed to a quadrant and lever L. The member L is biassed by a weight W and is operated by an electro-hydraulic device T, such as is described in Specification 363,137 or 520,113, [both in XXIX]. When a reversible induction motor TM is energized it causes the device T to lift the member L so turning the wheel SP in a direction to increase the speed of the hoist motor. When the motor TM is de-energized the weights move the wheel SP to the lowest speed position. The device T moves the lever L upwardly when the motor TM is energized irrespectively to the direction of rotation of that motor. When a drum controller K is moved to a low-spead position in either the hoisting or lowering direction, a solenoid B is energized through sliding contacts to remove a brake. Further movement of the controller energizes a relay-coil ACC and the motor TM to move the wheel SP to a higher speed position. A switch Q prevents acceleration of the hoist motor except from the lowest speed brushposition.
Patent GB-771540-A (GB)
Title: Improvements relating to the measurement of soil strength
Inventor: EDE AINSLIE NEVILLE
IPC: E02D1/02
Filed: 1955-09-06
Abstract: 771,540. Testing shear strength of soil. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Sept. 6, 1955 [June 14, 1954], No. 17476/54. Class 106 (2). Apparatus for measuring the shear strength of soil in situ comprises a hollow cylindrical shearbox 10, Fig. 1, having in its open bottom vanes 11 for causing soil in it to rotate with it when it is pressed downwardly into the ground, means for measuring the torque required to turn the shearbox, and a withdrawable hollow cylindrical shroud 40, Fig. 3, fitted round the outside of the shearbox 10 so that the shroud can be thrust into the ground with the shearbox and then withdrawn leaving the shearbox with its outer periphery free from the surrounding soil. The shroud 40 and shearbox 10 are thrust into the soil by hammering on the anvil 43 and the shroud may be removed by means of a jack placed between the anvil 43 and the bridge 17 of the shearbox. The shearbox is rotated by a rod 21, Fig. 2, coupled at 20, 22, after removal of the shroud, to a stem 14 carrying at its lower end a disc 15 engaging keys 16 internally of the shearbox permitted longitudinal movement but causing rotation of the rod 21, 14 to be communicated to the shear box. The torque is measured by the relative angular displacement as indicated on a dial gauge 28 between the rod 21 and an outer tube 24 with its upper end free and its lower end fixed at 25 to the rod 21 and to a loading platform 30 for weights 31.
Patent GB-776871-A (GB)
Title: Improved edging block for lawn and other borders
IPC: A01G9/28
Filed: 1954-06-15
Abstract: 776,871. Garden edging blocks. SAYERS, R. H. June 14, 1955 [June 15, 1954], No. 17535/54. Classes 87(1) and 107 A block for edging lawns, paths, flowerbeds &c. is formed with a vertical face 2 and an outwardly inclined face 3 connected by an inwardly inclined portion 5 to a vertical portion 8. The block has a depending tooth 9 which may be of the shape shown or rounded and a tongue 13 and corresponding grooves on its ends. In one modification, the tongue and groove are of inverted T-form. In another modification, the upper end of the face 3 is curved.
Patent GB-1009815-A (GB)
Title: Improvements in or relating to sliding clasp fastener structure
IPC: A44B19/40
Filed: 1964-04-28
Abstract: 1,009,815. Sliding clasp fasteners. SCOVILL MANUFACTURING CO. April 28, 1964 [May 31, 1963], No. 17631/64. Heading E2S. A sliding clasp fastener comprises a plastic filament coil 6, a card 9 extending axially through the convolutions of the coil, a flexible support tape 10, one edge portion 11 of whichoverlaps one side of the coil, and securing means including a first line of stitching 14 passing through the tape edge portion 11 and through the coil 6 between the convolutions thereof, and a second line of stitching 15 passing through the tape and being spaced slightly away from the coil, the lines of stitching being interconnected on the side of the coil opposite the overlapping tape portion 11 and being maintained under sufficient tension to pull the tape around the inner edge of the coil out of the general plane of the overlapping edge portion.
Patent GB-592216-A (GB)
Title: Impedance matching transformers
IPC: H01P7/02
Filed: 1943-10-26
Abstract: 592,216. Impedance transformers. STANDARD TELEPHONES & CABLES, Ltd. Oct. 26, 1943, No. 17691. Convention date, July 4, 1942. [Class 40 (iii)] An impedance-transformer comprises a shortcircuited stub-line and an open-circuited stubline coupled by a conductive connection which is movable so as to vary their effective lengths inversely. The transformer may be arranged either for step-up or step-down matching and is particularly useful for connecting a highfrequency source to a number of loads or several sources to one or more loads. For connecting a source 5 to a number of loads L1, L2 ... , Fig. 1, a transformer is provided for each load, and the stub-lines comprise pairs of parallel wires 20, 21 and 25, 26. The stub-lines overlap by about #/5 at the working frequency and corresponding wires are connected by conductive bars 36, 37 carried by a bracket 35 which may be moved 'to adjust the effective lengths of the stub-lines. When the transformers are distant from the common junction 30, 31, the connecting lines such as 14, 15 should be multiples of #/2 to ensure maximum voltage at the junction. For connecting several sources 40,. 41 to a load L4, Fig. 2, a single transformer is employed, which is shown in this case with the stub-lines arcuate and the bracket 55 rotatable. For step-down transformation the distance between the transformer and the junction 45 should be an odd multiple of #/4 to give minimum voltage thereat. For step-up transformation, the distance should be a multiple of #/2, as in Fig. 1. If it is required to couple the sources 40, 41 to a number of loads, the line 46 would be connected to a number of step-up transformers as shown to the right of the common junction 30, 31 in Fig. 1.
Patent GB-238069-A (GB)
Title: Improvements in spring forks for motor cycles and other cycles
IPC: B62K25/24
Filed: 1924-07-24
Abstract: 238,069. Maclean, J. P. July 24, 1924. Spring devices.- Relates to spring forks, for motor and other cycles, of the trailing-link type, as described for instance in Specification 208,514, wherein the main fork 10 is rigidly connected to the steering-stem and the auxiliary fork 1 is arranged behind the main fork and substantially parallel to it, is connected thereto bv links 8, 12 at or near the upper and lower ends, and is controlled by one or more springs. One or more compression springs 3 are interposed between the upper part of the auxiliary fork. or each rod thereof, and the upper end of the steering stem or a bracket 4 thereon or rigid with the head clip 5. The two rods of the auxiliary fork 1 may be cross-connected at the upper ends by a yoke 2 to form an anchorage for the spring or springs 3. The upper link 8 may be pivoted to the bolt 9 which secures the main fork 10 to the arm 11 on the lower end of the steering-stem, or may be pivoted to an upward extension of the arm 11, or to the bolt 13 which fixes the fork 10 to the bracket 4.
Patent GB-585614-A (GB)
Title: Improvements in or relating to flax-pulling machines
IPC: A01D45/06
Filed: 1944-09-18
Abstract: 585,614. Flax-pulling machines. SANDERSON, R. L. BURDON-. Sept. 18, 1944, No. 17786. [Class 6 (iii)] A self-propelled flax-pulling machine comprises a frame 1 supported by a pair of rear wheels 2, 3 and at least one front wheel 4, a power unit 6 mounted on the frame above the rear wheels, a flax-pulling device mounted on the frame forwardly of the power unit, crop dividers 22, 23 for guiding the standing crop to the pulling device and a pair of steering handles 31 at the rear of the machine, the centre of gravity of the machine being arranged to lie approximately above the rear axle so that the machine may readily be tilted about this axle to facilitate steering. In the form shown, the flax-pulling device comprises a large wheel 11 with a rubber-covered circumference cooperating with a rubber belt 13, running over adjustable pulleys 14, the belt being arranged to lie in contact with the wheel for a part of its path. The wheel is inclined slightly to the vertical in a backward direction and the flax is gripped between the belt and the wheel and carried round by them to the point at which they separate where it is received on a, shield Fig. 5 (not shown) and deposited at the side of the machine. The crop dividers comprise a pair of strip-metal members 22, 23 converging to the point at which the belt 13 meets the wheel 11 of the pulling mechanism. The outer member 22 is adjustably inclinable to the horizontal. To obviate a differential gear, only one of the rear wheels is driven, the other wheel 3 being freely rotatable on the rear axle 8. Clutch members are inserted in the drive both to the wheels and to the flax-pulling device so that either drive may be interrupted at will.
Patent GB-237591-A (GB)
Title: Method of manufacturing cellulose acetate
IPC: C08B3/06
Filed: 1925-07-11
Abstract: Cellulose acetate is prepared by treating cellulose or hydrocellulose with keten either alone or in the presence of an inert solvent such as ether, benzene, toluene, kerosine, and benzene, or of glacial acetic acid or acetic anhydride which serves to moisten the cellulose before the addition of the keten. A small proportion of a catalyst such as zinc chloride, chlorsulphonic acid, benzene sulphonic acid, or sulphuric acid may be added to the liquid moistening-agent.  In carrying out the process, the cellulosic material which may be cotton in its usual commercial forms, paper, wood pulp, wood flour, straw, jute, or regenerated cellulose, is placed in a closed chamber, which is exhausted to free the cellulose from air, and keten gas then admitted; during the reaction the mixture is energetically stirred; reaction is complete when the mass acquires a molasses-like consistency due to the solution of the acetate in the moistening-agent or when a sample shows solubility in acetic acid. The reaction may be carried out under pressure.
Patent GB-219706-A (GB)
Title: Improvements in methods for producing metals and metal alloys low in carbon
IPC: C21C7/00
Filed: 1924-07-26
Abstract: 219,706. Flodin, H. G. July 27, 1923, [Convention date]. Dry processes of extracting metals; alloys ; briquetting-processes.-In a process of the kind described in Specification 214,655 for the production of metals and alloys low in carbon, the carbonaceous reducing-agent which forms part of the briquettes is one which is solid at ordinary temperature but semi-liquid at the briquetting temperature, such as pitch or asphalt, or evaporated sulphite lye or molasses, or a liquid reducing- agent may be used and the mixture dried, and in some cases reground and remixed, prior to briquetting.
Patent GB-194225-A (GB)
Title: An improved device for gas heating cooking range ovens
IPC: F24C3/08
Filed: 1922-06-30
Abstract: 194,225. West, G., and Millar, W. S. June 30, 1922. Combined solid-fuel and gas stoves.-Means for heating a range-oven by gas comprise a burner 1 located in the oven, a vent 12 in the top of the oven communicating with the flue, and a connection 11 under the oven floor so arranged that a gas-supply tube mav be passed through the soot-door and connected to it. The burnertubes 1 are attached to a T-piece 3 the vertical stem 4 of which passes through the oven floor and is secured by a lock-nut 5. Air-holes 6 are formed in a sleeve 7 screwed on the lower end of the stem 4, which is cut away at 8 to allow air to pass when the stem is screwed up to the airholes 6.
Patent GB-1010738-A (GB)
Title: Improvements relating to flexible strip fasteners
IPC: A44B19/16
Filed: 1963-05-07
Abstract: 1,010,738. Strip fastenings. FLEXIGRIP Ltd. May 7, 1963 [May 17, 1962], No. 18014/63 Heading E2S. A flexible strip fastener comprises an elongated sheet 43 of flexible plastics material having a pair of co-operating fastener elements 44, 45 extending along its length on the same side of the sheet and spaced inwardly from the respective edge of the sheet. As shown, and which the fastener elements 44, 45<SP>1</SP> are adapted to interlock when the sheet is folded over and attached to the top of a bag or pouch and the elements are pressed together, perforations 49, 50 are made by wheels 50, 51 at opposite sides of the fold to produce tear lines by means of which a strip 54 may be removed prior to separating the elements 44, 45 to open the bag or pouch.