baber/WOPTO huggingface dataset:
Patent GB-631870-A (GB)
Title: A fishing-rod more particularly for casting
IPC: A01K87/00
Filed: 1946-04-29
Abstract: A fishing-rod is formed of two parts, a butt and a tip formed of solid metal, preferably an aluminium alloy, the whole when assembled being tapered from end to end.  The tip piece has four guide rings, and when assembled its lower end fits within a sleeve at the top of the butt piece.  The butt piece is fitted with a cork handle having a plastic end knob, and is provided with a folding guide ring. Dimensions of the rod are given.
Patent GB-888708-A (GB)
Title: Machine tool device
IPC: B23Q15/00
Filed: 1960-04-11
Abstract: 888,708. Drilling-machine details. SHEFFIELD CORPORATION. April 11, 1960 [April 20, 1959], No. 12857/60. Class 83 (3). A device for sensing the presence or absence, e.g. due to breakage, of a rotating fluted tool, e.g. a drill bit 20, Fig. 1, in a prescribed position, comprises a nozzle 27 adjustably mounted to discharge a jet of air against the drill in its rest position so that a higher pressure exists upstream from the nozzle than if the drill were absent, and a pressure-responsive element 42, Fig. 3, sensing this upstream pressure and operating to stop the tool rotation and feed if the pressure falls below a predetermined value due, e.g. to the bit breaking. Compressedair is supplied through a valve 30 and adjustable restriction 31 to the nozzle and a branch line 40 leading to element 42 contains an adjustable restriction 48, a non-return valve 47 and a pressure gauge 41. Valve 47 and restriction 48 smooth the cycling pressure variations due to the jet impinging on a fluted rotary bit. The drill motor 24, Fig. 4, also drives an hydraulic pump proving power for feeding the drill and is controlled by switch contacts 45a, 45b actuated by a relay 45 controlled by contacts 44 operated by element 42.
Patent GB-1535666-A (GB)
Title: Heavy-duty heat-responsive bimetallic element and a method of producing the same
IPC: G12B1/02
Filed: 1977-03-28
Abstract: 1535666 Making bimetallic material G RAU 28 March 1977 [1 April 1976] 12865/77 Heading B3A [Also in Division G1] In a bimetallic element the high expansivity component is an austenitic Cr-Ni steel and may include Mo, Nb, Ti and Si, while the low expansivity component is a heat-hardened alloy of Fe and Ni with either or both of Al and Ti, and optionally, Co, Cr, Mo. W, Nb, Ta. The element is made by multi-pass cold-rolling to join the two components, followed by shaping and heat treatment.
Patent GB-831964-A (GB)
Title: Beaded metal gasket
IPC: F16J15/08
Filed: 1956-04-26
Abstract: 831,964. Joint-making packing. GOETZEWERKE F. GOETZE A.G. April 26, 1956 [April 26, 1955], No. 12877/56. Class 122 (3). [Also in Group XXII] A gasket having a sealing bead 4 formed by a continuous corrugation comprises a steel or other hard metal core 1 having on each face a layer of aluminium 2, 3 bonded to the core by clodding prior to forming the bead 4.
Patent GB-1506361-A (GB)
Title: Process for block quantizing an electrical signal and device for implementing said process
IPC: H03M1/12
Filed: 1976-03-31
Abstract: 1506361 Block quantization process INTERNATIONAL BUSINESS MACHINES CORP 31 March 1976 [27 May 1975] 12971/76 Heading H3H To minimize error in quantizing a section Sn of N samples of a signal to be represented as where Fn is a bit stream, Q is the quantizing step and Cn a constant or polynomial, the final values of Cn and Q are arrived at iteratively. For one bit quantization a section of samples Sn‹ is loaded on to a recirculating delay line DL1 and presented to a summing point ADD 1 where an initial value Cn‹ gives Sn<SP>1</SP> = Sn‹ - Cn‹, fed to device QUANT producing sign derived bit stream Fn' which together with Sn' is fed to device COMP. This computes values of Cn and Q to minimize error where p is 2 for quadratic error. A new stream Fn is then calculated and the system iterates to reduce errors. For more than onebit quantization device QUANT uses the value of Q to determine Fn. A delta modulation embodiment is described, Fig. 5 (not shown), where the signal encoded Sn is the difference between an incoming signal Xn<SP>i</SP> and reconstructed signal Xn<SP>i-1</SP>.
Patent GB-1209125-A (GB)
Title: Process for the manufacture of vinyl acetate
Inventor: ERPENBACH HEINZ
IPC: C07C67/04
Filed: 1969-03-12
Abstract: 1,209,125. Vinyl acetate. FARBENFABRIKEN BAYER A.G., and FARBWERKE HOECHST A.G. 12 March, 1969 [15 March, 1968], No. 12976/69. Heading C2C. Vinyl acetate is prepared by reacting ethylene, acetic acid and molecular oxygen or air in the gas phase at elevated temperature in contact with a catalyst comprising metallic ruthenium, rhodium, palladium, osmium, iridium or platinum supported on a carrier and further comprising one or more alkali metal or alkaline earth metal acetates, or alkali metal or alkaline earth metal compounds capable of forming acetates and in which the acetic acid contains up to 20% of formic acid. The formic acid may be present in the acetic acid obtained as a primary product in hydrocarbon oxidation processes or as a byproduct in epoxidation processes using peracetic acid. Additional activating metals such as copper, silver, gold, zinc, cadmium, tin, lead, chromium, molybdenum, tungsten, manganese, iron, cobalt, or nickel may be present.
Patent GB-1394005-A (GB)
Title: Hydraulic press
IPC: B29C45/67
Filed: 1973-03-19
Abstract: 1394005 Injection mould closing devices; hydraulic presses KOEHRING CO 19 March 1973 [22 March 1972] 13038/73 Headings B5A and B5F Two-stage closing of an hydraulic press is effected by a main ram 18 in a cylinder 20 and a stationary booster ram 28 extending into a bore or cylinder 29 within the main ram, fluid being supplied under gravity from a reservoir 50 to the cylinder 20 during the rapid low pressure closing movement of the ram 18. The invention is applied to an injection moulding machine having a mould 14, 15 and an injection assembly 11. Rapid closing movement is effected by applying fluid pressure to the end wall of cylinder 29, and final high pressure clamping by applying fluid pressure to the remaining annular area on the rear end of ram 18. Fluid flow to and from the main and booster ram assemblies is controlled by a valve 34 comprising a prefill valve piston 45 slidable within a valve housing 35. A bevelled portion 47 of valve piston 45 seats against a valve seat 76 to close off communication between the reservoir 50 and cylinder 20 via a pipe 72 and opening 73. Operation.-With the parts in the positions shown, pressure from a line 94 is applied to pin valves 66 and through a valve 81 to a chamber 54 in valve housing 35. Valve piston 45 is held open because of the larger pressurized area of piston 45 than pins 66. By moving a valve 80 to the left in Fig. 1 pressure fluid is supplied through line 88 and passages 60, 61 to cause ram 18 to advance rapidly. Prefill fluid flows under gravity from reservoir 50 into region 22 of main ram cylinder 20. When main ram 18 nears the end of its stroke it trips a switch (not shown) which operates the solenoid of valve 81 to move this valve upwardly. This depressurizes chamber 54 and allows pins 66 to move valve piston 45 toward closed position. As pins 66 advance, pressure fluid flows through passages 60, 62, past grooved regions 67 of the pins 66, and through a region 55 (Fig. 3, not shown) and an annular passage 49 to the main ram 18 to cause final clamping pressure.
Patent GB-891466-A (GB)
Title: New methane sulphonic acid esters of polyols
Inventor: BROWN STANLEY SIDNEY
IPC: C07C309/66
Filed: 1958-04-24
Abstract: The invention comprises bis-a  : o -methane sulphonic acid acid esters of ribitol and polyols of the general formuls HOCH2(CHOH)nCH2OH wherein n is 2 or 4, including the stereo-isomers and racemic mixtures of the esters.  The esters are prepared by reacting methane sulphonyl chloride with a ribitol or polyol as above defined in the presence of an acid acceptor which is an organic tertiary base, e.g. pyridine or a derivative thereof, the reaction time and other conditions being such as to sulphonate only the end hydroxyl groups and isolating the reaction product by treating the reaction mixture with acetic anhydride and an acid acceptor which is an organic tertiary base to produce an insoluble fully acetylated derivative of the bis sulphonate, separating this acetyl derivative and subjecting it to acid hydrolysis to yield the desired bis-sulphonate of the polyol. Examples describe the preparation of 1 : 6-dimethanesulphonyl-D-mannitol, 1 : 5-dimethanesulphonyl-D-ribitol and 1 : 4-dimethanesulphonyl-erythritol.  According to the first Provisional Specification, 1 : 6-dimethanesulphonyl-mannitol is prepared by reacting methane sulphonic acid with 1 : 2-5 : 6-dianhydro - 3 : 4 - isopropylidene - mannitol in dry ether.
Patent GB-238633-A (GB)
Title: Improvements in vacuum cleaners
IPC: A47L5/04
Filed: 1924-05-29
Abstract: 238,633. Proctor, T. May 29, 1924. Filtering. - The dust box and the air bag of a vacuum cleaner are open at the top and closed by a lid which forms a cap for the bag, the dust box being tapered downwards and the bag carried on a loose pipe with a flared end fitting over the air inlet pipe. The dust receptacle A of rectangular section tapers towards the bottom and contains an open-topped dust bag G supported by a frame H on a ledge and tied at the bottom around a flared tube H<1> fitting over the air tube f<2>. The box is closed by a removable lid A'.
Patent GB-435630-A (GB)
Title: Improvements in girders
IPC: E04C3/04
Filed: 1934-05-01
Abstract: 435,630. Uniting by fusion. VEREINIGTE STAHLWERKE AKT.-GES., 67, Breitestrasse, D³sseldorf, Germany. May 1, 1934, No. 13181. Convention date, June 8, 1933. [Class 83 (iv)] [See also Group X] A girder, comprising a web-plate b and a welded flange a, is arranged with the flange channelled at its middle portion, as shown at a<1>, and provided with longitudinal ribs a<2> spaced apart to form a longitudinal recess at the middle of the section for the reception of the edge of the web, the welded joint c being formed between the surface of the web and the adjacent edges of the ribs. The channel form of the flange serves to dispose the welded joint near to the neutral axis of the girder. If desired, the web may be provided with two flanges.
Patent GB-1177823-A (GB)
Title: Improvements in or relating to Plant Supporting Devices
Inventor: SIMMON GERHARD
IPC: A01G9/12
Filed: 1967-03-21
Abstract: 1,177,823. Plant supports. G. SIMMON. 21 March, 1967 [25 March, 1966], No. 13209/67. Heading A1E. A plant support comprises a funnellike screen divided into a number of cells 7 and adapted to be adjustably held on a central rod with its narrowest part uppermost. The cells of the screen are preferably hexagonal and are provided with pin-like projections which extend into the plane of the cells. The lower marginal edge 5 of the screen may also be hexagonal and provided with downwardly extending barbs 6 whereby the screen can initially be anchored in the ground. The screen has a central hub 8 provided with a number of tongues 9 having part-spherical heads 13 which are clamped against the rod by means of an outer sleeve 10, the outer surface of tube 8 and the inner surface of the sleeve 10 having interacting rows of teeth 14.
Patent GB-1249096-A (GB)
Title: Gas discharge device
IPC: H01J9/395
Filed: 1970-03-19
Abstract: 1,249,096. Discharge apparatus; lasers. INTERNATIONAL BUSINESS MACHINES CORP. 19 March, 1970 [7 April, 1969], No. 13234/70. Headings H1C and H1D. A gas discharge device for exciting a gas into a plasma comprises a closed loop tube 10, 12 containing a gas, and a plurality of electrically conductive layers 16, 18, 22 separated by insulating material and connected in series. The tube 10, 12 is of circular cross-section and made of glass or ceramic. The gas filling may be argon, chlorine or oxygen. The layers 16, 18 and 22 are of copper separated by insulating material (not shown) which is interrupted at the locations of conductive members 20 and 24 connecting the layers in series between input connectors 14 and 26 connected to a capacitor 28. The layers form a three turn coaxial primary winding enabling a damped discharge to be produced without requiring a large capacitor. The leakage inductance is essentially independent of the turns ratio. Brewster windows may be provided at the ends of tube portion 10 to form an ion laser.
Patent GB-861861-A (GB)
Title: Improvements in apparatus for plying strands of yarn
IPC: D02G3/28
Filed: 1957-04-25
Abstract: 861,861. Plying strands. DEERING MILLIKEN RESEARCH CORPORATION. April 25, 1957 [April 25, 1956], No. 13241/57. Class 120(2) To equalize the tensions in plying at least two strands which are fed from supplies to individual tensioners and thence to a ply-point via individual means for controlling the rate of feed with which the strands are in non-slipping relation, as a first step the control means are allowed to idle and at least one of the tensioners is adjusted to stabilize the position of the ply point, and as a second step, the control means are coupled together to maintain equal feed rates of the strands. The control means may take the form of capstans 42, Fig. 3, each comprising a bevel gear 80 mounted to rotate on a stub shaft 74. The capstans can also rotate with a shaft 60 held in bearings 52, 54 being mounted in the faces 72 of an enlarged head 73. A bevel gear 90 is also mounted on the shaft and can be moved manually from an inoperative position to one in which it engages the bevels of the capstans, being locked in either position by a spring-detent and a spring-urged ball 110. In a form using two such capstans, Fig. 1, a strand A reaches the ply-point from a package 11 via tension devices 13, the bore of a spindle 15, a balloon around a housing 19, a guide 89 and capstan 42; the other strand B is drawn from a package inside the housing, which is prevented from rotating by a magnet or a weight 22, and passes around tensioners 23 and a guide 24 before entering the shaft 60 with which the capstans rotate. Then, via a guide 87 it is looped around capstan 44 in a direction opposite to that of the strand A on capstan 42. With the capstans uncoupled, the working tension is adjusted in accordance with the material of the strands and the operating- speed. The shaft 15 and the feed and take-up assemblies are started, observations made of the position of the ply-point and strand tensions, the latter using a stroboscope, and the necessary tension adjustments are made. The capstans are then coupled by moving the bevel 90 so that they act to feed the strands to the ply-point at the same rate and tension irrespective of small variations which may occur on the input side of the capstans. Specification 835,411 is referred to.
Patent GB-216329-A (GB)
Title: Improvements relating to sparking plugs for internal combustion engines
IPC: H01T13/16
Filed: 1923-05-18
Abstract: 216,329. Thomas, J. G. P., and Thomas Inventions Development Co., Ltd. May 18, 1923. Cylinders, arrangement of igniters in.-A sparking-plug is mounted within a ferrule S which crosses the water jacket and, by means of a grooved copper washer 12, makes a water-tight joint with a machined surface on the wall of the combustion chambers. The passage 10 from the pocket 15 to the cylinder is preferably of small diameter.
Patent GB-1343866-A (GB)
Title: Guide elements for magnetic tapes to be wound in the form of packs of flangeless hubs and to be unwound therefrom
IPC: G11B23/087
Filed: 1972-03-22
Abstract: 1343866 Tape guiding BADISCHE-ANILIN- & SODA-FABRIK AG 22 March 1972 [29 March 1971] 13327/72 Heading G5R In a cassette 1, tape 11 is guided from/on to rolls 12, 13 on flangeless hubs 9, 10 by movable elements 20, 21 in the form of pivoted arms, a surface 41 contacting the tape as it tangentially leaves/joins the rolls, and flanges 24, 25 maintaining the tape in the desired lateral position. The guide elements may have different curvatures and pivot from different points, as in Figs. 3, 4, 5 (not shown), or may have slots (50, Fig. 10, not shown, or as in Fig. 5b, not shown) through which the tape passes. The portion 24, 25, 41 of element 20 (Fig. 2) may form a complete guide element by itself, as in Fig. 7 (not shown), in which case it is then mounted so that it can slide in a slot as the radius of the tape roll varies (as in Fig. 6, not shown). This type of element may also include a tape slot (as in Fig. 8, not shown).
Patent GB-347486-A (GB)
Title: Improvements in or relating to ceramic materials
IPC: C04B35/16
Filed: 1930-04-30
Abstract: A body composition for the production of refractory and ceramic articles comprises a mixture of a natural or artificial hydrated magnesium silicate free from alkali, not more than 10 per cent of alkali-free alkaline earth compounds and alumina. Graphite may be added as a filler.  The composition is moulded and fired.  Suitable natural silicates are serpentine, chlorite, soapstone, talc and steatite.  In an example 90 parts of iron-free soapstone, 7,5 parts of barium carbonate and 2,5 parts of alumina are finely ground, moulded, dried and burnt at Seger cone 14.  In another example 80 parts of graphite are mixed with 20 parts of the composition of the preceding example.  The material may be used for the production of tubes, vessels, &c. for acids and other chemicals, building blocks, &c., crucibles, stills, emery and polishing wheels, &c.
Patent GB-1459431-A (GB)
Title: Plant fertiliser or tonic
IPC: C05G3/00
Filed: 1973-03-20
Abstract: 1459431 Fertilizer J A MITCHELL 14 March 1974 [20 March 1973] 13429/73 Heading C1B A liquid fertilizer for plants is prepared by steeping avian egg shells in water for a period at least until the smell of hydrogen sulphide is discernible and then separating the resultant liquid from the egg shells. The steeping period may be a week or more, and heat may be applied to the water during steeping. The liquid may be applied at the rate of up to 5 fluid ounces per plant.
Patent GB-502224-A (GB)
Title: Improvements in or relating to high-lift safety valves for steam boilers
IPC: F16K17/08
Filed: 1938-05-05
Abstract: 502,224. Safety valves. KNORRBREMSE AKT.-GES. May 5, 1938, No. 13441. Convention date, Sept. 8. 1937. Addition to 492,878. [Class 135] The controlling device for delaying communication between the huddling chamber and the counter pressure chamber of the high lift safety valve described in the parent Specification is modified by the provision of two separate valves e, working coaxially in opposite directions, one of the valves l which cuts off the connection between the atmosphere and the huddling chamber when the pressure in the latter reaches its maximum value, having an opening spring g, stronger than the opening spring i of the other valve e which is therefore normally closed. The valve e opens only when the pressure in the boiler and hence in the huddling chamber falls to the desired value. The relative sizes of the valves e, l are so chosen in relation to the strength of the springs to enable the valve e to open first. As the huddling chamber pressure decreases further the valve l opens so that a passage b leading from the huddling chamber is connected through a chamber k with a port m open to atmosphere. The housing c of the device also has a port f leading to the counter pressure chamber.
Patent GB-154855-A (GB)
Title: Improvements in or relating to tyre slabbing and punching presses
IPC: B21K1/28
Filed: 1919-05-24
Abstract: 154,855. Davy Bros., and Hand, T. W. May 24, 1919. Hoops and rings.-A press for forging and punching a billet to form a tyre annulus of the type described in Specification 150,054, [Class 83 (iv), Metals, Working], is provided with a rotary rectangular top tool, the face of which is as long but not as wide as the diameter of the billet. The mechanism for rotating the top tool comprises a gear wheel 48, Fig. 4, carried by a ball-mounted elemert 45 of the press head, and a pinion 49 on a shaft 50 carried by the press head and feathered in a worm wheel which, together with an electro-motor driving it, is carried by the press frame. The rectangular top tool 44 is rotated during the slabbing down of the billet and also in the subsequent forging of the flattened billet in the bottom die.
Patent GB-1330773-A (GB)
Title: Pcm signalling system
IPC: H04Q11/04
Filed: 1971-05-06
Abstract: 1330773 Automatic exchange equipment INTERNATIONAL STANDARD ELECTRIC CORP 6 May 1971 [12 June 1970] 13467/71 Heading H4K An interexchange signalling system uses lines operating in TDM and uses PCM signals. Each line carries 32 time divided channels of which channel 31 is used for synchronization and channel 32 for signalling. Each code combination comprises 8 bits of which 5 are used to identify the channel and the remaining 3 bits, which include a parity bit, the state of the line concerned. Effectively only a change in state of the scanned channel is transmitted and this is achieved by comparing, in an OR gate, the state of the line on the current scan with the state of the preceding scan which is stored in a memory. If a difference is detected the output of the OR gate is passed to a register which stores the identity information and the total state signal including the locally generated parity bit. When time channel 32 is reached the stored information is transmitted to the other exchange where it is decoded and used to set a bi-stable circuit which controls a relay to open or close the required junctor loop. To avoid errors the state message is stored in JK bi-stables in the transmitting unit for two cycles so that the message is repeated.
Patent GB-183785-A (GB)
Title: Improved blank feeding mechanism for nut tapping machines
IPC: B23Q7/00
Filed: 1921-05-27
Abstract: 183,785. Clay, S. B. May 27, 1921. Tapping.- A blank-feeding device for nut-tapping machines, particularly those of the type described in Specification 183,308, consists of a reciprocating member which is driven from the tap-spindle and which is arranged to remove the lowest blank from a hopper in two distinct stages. The vertical movement of the tap-spindle D Fig. 2, is employed by means of the rod 58 and linkage 55. 56, Fig. 3, to reciprocate a rectangular slide K which is provided with a central bay for retaining blanks and with an abutment R for feeding them, a fixed stop 54 being fixed in the table 51 for locating the adjacent blank under the tap-spindle. The upward movement of the tapspindle removes the nut which has just been tapped and when movement of the slide ensues owing to contact of the bar 26, Fig. 2, and the nut 59, the string of blanks on the table 51 is fed to contact with the stop 54, while at the same time the lowest blank in the hopper 50 descends on the abutment R. On the return of the slide the blank previously resting on the abutment is swept into the bay in front thereof in readiness for transference to the tap-spindle.