baber/WOPTO huggingface dataset:
Patent GB-150014-A (GB)
Title: Improvements in internal combustion engines
IPC: F02M69/00
Filed: 1919-03-26
Abstract: 150,014. Cameron, W. March 26, 1919. Four-stroke-cycle engines; two-stroke-cycle engines.-In an engine of the kind useing heavy liquid fuel, when the power developed is not less than half full-power, the greater part of the fuel is injected and burnt at approximately constant volume, and the remainder is injected during the expansion of the combustion products and burnt at approximately constant pressure; when the power developed is less than half full-power the whole of the fuel is injected during compression and burnt at approximately constant volume. The quantity of air admitted to the cylinder may be adjusted to the quantity of fuel. The fuel may be ignited by means of a charge of volatile hydrocarbon, as described in Specification 129,522. [Class 7 (iii), Internal-combustion engines, Carburetting apparatus &c. for]. Fig. 2 is a pressure and volume diagram of an engine developing full power, the injection beginning at the point 2 and ending at the point 6. Ignition occurs at the point 3 and at point 4 the greater part of the fuel has been injected. Fig. 3 is a pressure-volume diagram of an engine when the whole of the fuel is burnt at constant volume. Means are described in the Provisional Specification and in Specification 148,730, [Class 7 (iii), Internal-combustion engines, Carburetting-apparatus &c. for], for injecting the fuel, timing the injection, and varying the quantity injected.
Patent GB-1132652-A (GB)
Title: Pulse tube refrigeration process
Inventor: WEBSTER THOMAS JOHN
IPC: F25B9/14
Filed: 1966-02-21
Abstract: 1,132,652. Refrigerating. BRITISH OXYGEN CO. Ltd. 13 Feb., 1967 [21 Feb., 1966], No. 7543/66. Heading F4H. In a pulse tube refrigeration process, the heat exchanger is provided at the warm end of the tube, and warm gas at that end of the tube is displaced at constant pressure from the tube in each cycle. As illustrated, the pulse tube 4 with a heat exchanger and flow smoothing device 3 and the regenerator 2 are connected in a circuit with a piston and cylinder 9, a cooled reservoir 12, a one-way valve 13 and a valve 11 which automatically opens when the pressure at the warm end of the pulse tube exceeds a given value. A cooling heat exchanger 10 is provided in the cylinder 9. During the latter part of the compression stroke of the piston warm gas passes from the tube through the valve 11 into the cooled reservoir 12 which has a capacity sufficient to contain the gas passed through the valve 11 during a number of cycles. During the latter part of the expansion stroke of the piston gas is drawn from the reservoir 12 through the valve 13 into the cylinder. In another embodiment, Fig. 3 (not shown), there is no provision for the recycling of gas and a valve at the warm end of the tube is opened on completion of compression to allow some warm gas to escape to atmosphere.
Patent GB-1093626-A (GB)
Title: Improvements in and relating to the laying down of tows or bands of continuous filaments into containers
IPC: B65B1/24
Filed: 1965-02-22
Abstract: 1,093,626. Coiling filamentary tow. FARBWERKE HOECHST A.G. Feb. 22, 1965 [Feb. 20, 1964], No. 7630/65. Heading D1F. In a process for laying down tows or bands of continuous filaments of synthetic material e.g. polyesters, polyamides, polyolefins and polyacrylonitrile, zig-zag layers of the tow &c are continuously formed in a container and periodically e.g. after the formation of each double layer, compressed by applying pressure to one or more different parts of the free surface thereof in turn when the container is stationary (the different parts together covering the whole of the free surface) while at the same time continuing to deposit further tow &c on a different part of such surface. In the apparatus shown, a tow 2 is fed continuously down a funnel 1 into a container and a supporting trolley 4 and the funnel are reciprocated at such relative rates that all the tow is deposited in zig-zag layers extending uniformly over the entire horizontal crosssection of the container. At each end of its travel, trolley 4 pauses to allow a ram 5 on that side to descend against the upper surface of the tow therebeneath and then ascend, with the trolley meanwhile stationary. At the central part of the container, which is covered by both rams, the deposited tow is compressed every time a single layer is added. A protective hood 7 is connected to the apparatus driving mechanism (not shown) so that when it is raised e.g. to enable a change of container, the reciprocating movements of the trolley 4 and funnel 1 are arrested and the rams 5 rendered inoperative.
Patent GB-452055-A (GB)
Title: Improvements in time-controlled electric switches
IPC: G04C23/34
Filed: 1935-03-12
Abstract: 452,055. Time-switches. HORSTMANN GEAR CO., Ltd., and HORSTMANN, B. G., Newbridge Works, Bath. March 12, 1935, No. 7675. [Class 38 (v)] A time switch, in which tappets 3, 4, 5 on a 24-hour dial move a switch arm 6 into different switch positions at predetermined times of the day, has a further tappet 2 adapted to rotate a star-wheel 21 one tooth per day and so open a master switch on, say, one day per week. The master switch is operated by a pin 26 on the starwheel moving a contact arm 24 away from a contact 23 and thus breaking the circuit through the switch arm 6. From the position shown, clockwise rotation of the 24-hour dial causes tappet 5 to move arm 12 and another arm 14 fixed to it so that a projection 16 on the switch arm 6 slips off the lower of two steps 15 and the arm 6 pivoted at 23 is pulled by a spring 20 into engagement with a fixed contact 8. At a later predetermined time the tappet 3 engages an arm 9 pivoted at 10 and the member 12, 14 which is pivoted to the member 9 at 13 is moved bodily downwards and then released, the upper step 15 engaging beneath the projection 16 and carrying the arm 6 upwards into engagement with a fixed contact 7. At a still later time, the tappet 4 moves the arm 14 sufficiently for the arm 6 to slip off the upper step 15 on to the lower step, the parts then assuming the original " switch open " position shown. Specification 373,554 is referred to. The Provisional Specification refers also to Specification 329,633, [Class 38 (v)].
Patent GB-963670-A (GB)
Title: Improvements in or relating to deep drills
IPC: E21B10/66
Filed: 1963-02-26
Abstract: 963,670 Boring earth &c. SKANSKA CEMENTGJUTERIET A.B. Feb. 26, 1963 [March 1, 1962], No. 7697/63. Heading E1F. A drill which is followed during drilling by casing 3 comprises a cutting head 1 eccentrically mounted on a drill rod 2, and a sleeve 5 rotatable on the rod and carrying an eccentric portion 6. When the rod is rotated anticlockwise abutments 7, 8 on the eccentric and head coact so that the head is positioned to drill a hole large enough for the casing. When the rotation of the rod is reversed it moves 180 degrees before the head engages the eccentric portion to make possible the withdrawal of the head, sleeve and rod from the casing. During drilling a percussive action is also applied to the head. The casing carries a fitting 9 having a branch 10 for attachment of a supply for flushing fluid. The rod has an enlargement 11 which engages the fitting to drive the casing into the hole.
Patent GB-539251-A (GB)
Title: Improvements in or relating to step ladders and ladders
IPC: E06C1/20
Filed: 1940-05-01
Abstract: 539,251. Step-ladders. WESTON, T. May 1, 1940, No. 7852. [Class 20 (ii)] A step-ladder comprises. a ladder portion, a pair of supporting legs pivoted thereto so as to move outwardly with respect to each other as they are moved outwardly from the ladder, and pivoted tie members for the legs to limit their outward movement. The legs 1 are pivoted to blocks 18 mounted on a rotatable shaft 2 on the ladder and are inter-connected by crossed bars 9 each of which is pivoted at one end to a leg and at the other end to a sliding sleeve 8 on the opposite leg. Pivoted stays 5, one on each side, are pivoted to blocks 26 at the ends of a further rotatable shaft 6 on the ladder portion, and also to the squared ends of bolts 27 on the sleeves 8 of the leg on each side, the other ends of the bolts serving as pivots for the ends of the crossed bars 9. As the legs are moved outwardly from ;the ladder, the sleeves on the legs are raised by the ties 5, and .the .crossed bars 9 move the legs apart. The extent of the opening is controlled by a stop plate 11 which may take the form of a simple plate secured to each leg or may comprise a resilient extension plate 32 which can be adjusted to and from the leg to form an alternative stop for a different position. Tension springs 12 may be used between the upper end of each leg and the sleeve 8 thereon to cause automatic opening of the legs and when the ladder is closed lock plates 13 on the ladder serve to lock it in that position. The springs may be disposed in grooves in the legs. The joints between the legs and the ladder and the ties and the ladder may be ball and socket joints to allow universal movement. A cord 40 attached to a lever 43.on each side of the ladder D may be used in conjunction with a shorter spring.46 to effect the.opening and closing of the ladder.
Patent GB-404493-A (GB)
Title: Improvements in and relating to the mounting of dynamos on internal combustion engines
IPC: H02K27/00
Filed: 1933-03-15
Abstract: 404,493. Disposition of dynamos on internal-combustion engines. AKTIESELSKABET FISKER & NIELSEN, and FISKER, P. A., 30, Peter Bangsvej, Copenhagen. March 15, 1933, No. 7882. [Class 7 (iv).] A dynamo which drives the overhead cam shaft of an internal - combustion engine from the crank shaft has the upper and lower portions of its casing cylindrical and these portions are received in corresponding bores in the casings of the cam and crank shafts. As shown, the ring 25 clamps the extension 18 of the dynamo housing in the opening in the cam shaft cover 8, whilst the extension 23 is guided in a bore in the crank case 2, the main part 17 of the dynamo casing having lugs for screwing to the crank case.
Patent GB-1254823-A (GB)
Title: Improved tool holder
IPC: B23B29/16
Filed: 1970-02-18
Abstract: 1,254,823. Tool holders. FEDERAL SCREW WORKS. 18 Feb., 1970 [1 April, 1969], No. 7897/70. Heading B3T. A tool holding assembly comprises a base member 11 to which there is secured a support member 19 of inverted U-shape cross-section and through which extends a lever arm 31 connected to a transverse pin 83 and about which the lever arm may pivot in a vertical plane, the lever arm having a head portion upon which is securable a roller box-type cutting tool assembly. An adjustable spring assembly 43, 45 is attached to the support member 19 which urges the lever arm into engagement with an adjustable stop 51. In use the spring biased pivoting of the lever arm permits the cutting tool to remain in correct engagement with the workpiece in spite of slight variations in alignment between the tool holder and the workpiece. The tool cutter and roller are set to produce a given diameter workpiece.
Patent GB-1160393-A (GB)
Title: Change Speed Transmission.
IPC: F16H3/12
Filed: 1967-02-20
Abstract: 1,160,393. Change-speed gear; clutches. FORD MOTOR CO. Ltd. 20 Feb., 1967 [2 May, 1966], No. 7930/67. Headings F2C and F2D. In a change-speed gear for a motor vehicle wherein steps 34, 46, 48, 50 of countershaft gear clusters 36 respectively mesh an input gear 32, intermediate and low gears 52, 54 and a reverse gear 58 through an idler 56, the gears 32, 52, 54, 58 are selectively connected to an output shaft 12 by an axially movable sleeve 72 having external splines 74 engageable with internal splines 76, 78, 80, 82 in the gears, and a friction clutch 86 which normally connects the sleeve 72 to the output shaft 12 is automatically disengaged during ratio shift. Friction discs 84, 88 of the clutch 86 are respectively splined to the sleeve 72 and to a hub 90 which is splined on the output shaft 12. The discs 84, 88 are urged into light frictional engagement between a back plate 102 and a presser plate 104 by a waved spring 106. Interengaging cam teeth 110, 118 between the hub 109 and presser plate 104 and interengaging cam teeth'108, 112 between the hub 109 and a drum 100 fast with the back plate 102 produce a torque responsive axial engaging force on the clutch discs. During ratio shift the hub 109 and sleeve 72 are moved axially by a shift rod 140 and pins 122 carried by the hub 109 ride up cam surfaces 128, 130, 132, 134 on the shaft 12 so that the outer conical ends of the pins 122 coact with cam surfaces 126 on the presser plate to retract the latter and disengage the clutch. During establishment of a new ratio the pins engage the next recess in the shaft 12 and permit the springs 106 to initiate re-engagement of the clutch 86. Balls 98 connect the sleeve 72 and hub 109, for conjoint axial movement whilst permitting relative rotation. The input shaft 10 is connected to an engine crank-shaft by a main clutch (not shown). Three equally spaced gear clusters 36 support the gears 52, 54, 58 without bearings. The gears have double helical teeth to avoid axial thrusts.
Patent GB-352522-A (GB)
Title: Improvements in and relating to loom pickers
IPC: D03D49/36
Filed: 1930-03-12
Abstract: 352,522. Loom pickers. INTERNATIONAL GENERAL ELECTRIC CO., Inc., 120, Broadway, New York, U.S.A.- (Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin.) March 12, 1930, No. 8041. Convention date, March 19, 1929. [Class 142 (iii).] Pickers are made of alternate layers 1 of woven fabric such as cotton duck or canvas impregnated with artificial resin such as phenol formaldehyde condensation product, and layers 2 of woven fabric impregnated with raw rubber. The layers may be wound together and pressed to shape in the manner described in Specification 286,916, [Class 142 (iii), Looms, Weft supplying &c. in], preferably at about 160‹ C. and under a pressure of 150 kg./sq. cm. whereby the rubber is vulcanized and the resin hardened simultaneously.
Patent GB-712238-A (GB)
Title: Improvements in methods of gas shielded arc welding of aluminium and aluminium alloys
IPC: B23K9/173
Filed: 1951-04-06
Abstract: A bare aluminium or aluminium alloy wire substantially free of any hydrogen containing compound is employed as an electrode when aluminium or aluminium alloy is welded by the gas shielded arc welding process.  All moisture, hydrocarbons such as oil and grease and hydrated oxide film are removed from the wire before welding.  An alkaline bath containing sodium carbonate, trisodium phosphate and sodium hydroxide may be used to remove oil, grease and hydrated acid film.  The wire is then immersed in an acid, e.g. nitric, nitric-hydrofluoric or chromic based to brighten it, and it is rinsed and dried.  An alkaline bath, e.g. 3 per cent. sodium carbonate and 3 per cent. sodium phosphate with an inhibitor, e.g. pyridine or aniline or a vapour degreaser, e.g. trichlorethylene, perchlorethylene carbon tetrachloride or benzol may be used to remove oil and grease and an acid bath, e.g. of nitric, phosphoric and acetic to remove the oxide film.  The acid bath may be replaced by a solution of caustic soda, zinc oxide and water in which the oxide film is dissolved to expose the aluminium which on dissolving is replaced by zinc.  The zinc is removed in a nitric acid bath. Stainless steel brushes may be used to mechanically remove the oxide film.  After removing oxide, moisture and hydrocarbons the wire may be packaged in a moisture-proof container.  Specifications 687,666, [Group XXII], and 712,271 are referred to.  Reference has been directed by the Comptroller to Specification 659,015, [Group XXII].
Patent GB-993304-A (GB)
Title: Improvements in the manufacture of insoles and socks for use in footwear
Inventor: SMITH DEREK JOHN
IPC: A43B13/38
Filed: 1960-03-07
Abstract: 993,304. Seaming non-metallic sheet materials. E. A. CHAMBERLAIN Ltd. May 12, 1961 [March 7, 1960], No. 8051/60. Heading B5K. [Also in Division A3] Two or more fabric plies of interwoven thermoplastic mono-filaments or strands of a copolymer of vinylidene chloride and vinyl chloride are pinched and fused together between a tool 4 and a table 2 between which a radiofrequency alternating electric field has been established. The plies 5a, 5b, 5c are placed on the table 2. The tools are secured to a head 1, each tool comprising an aluminium block 3 in the desired shape, around which a brass strip 4 projects the lower face of which is inclined upwards towards the centre of the article so that the strip of fused material 6 formed increases in thickness towards its inner boundary. The finished articles are detached from the remainder of the fabric after it has cooled. Insulating barrier sheets 8, 7 are interposed between the plies and the table or the tool to prevent the fused material sticking thereto. The sheet 7 in contact with the tool is preferably of greaseproof paper, silicone rubber, polytetrafluorethylene or impregnated cloth and the sheet 8 of polytetrafluorethylene. The tool may be urged towards the barrier sheet 7 by spring means.
Patent GB-1011144-A (GB)
Title: Improvements in or relating to a method of cooling reaction gases
IPC: B01D51/10
Filed: 1964-02-26
Abstract: 1,011,144. Cooling gases by direct contact with liquids. INSTYTUT CHEMII OGOLNEJ. Feb. 26, 1964 [May 13, 1963], No. 8069/64. Heading F4K. In a method of cooling reaction gases from the liquid-phase oxidation of organic compounds with air or gases containing molecular oxygen, the gases from one or more oxidation apparatus 1 are led through a scrubber 2 in which they are cooled by contact with flowing liquid on its way to the apparatus 1. Water vapour entrained in the reaction gases is at the same time condensed out and is separated from the liquid in a separator 3. From the separator the liquid passes into the upper part of the apparatus 1. Air is introduced into the lower part of, and crude reaction product is withdrawn from the base of the apparatus f as shown by the arrows.
Patent GB-660851-A (GB)
Title: Musical instruments
IPC: G10C1/06
Filed: 1949-03-24
Abstract: 660,851. Pianofortes; stringed musical instruments. HARTMAN, L. March 24, 1949. No. 8072/49. Class 88 (ii). A substantially harp-shaped horizontal sound-box 1 supported by folding legs (not shown) carries strings 12 and a keyboard assembly 8 above the strings. Depression of a key 11 rotates, through a connecting rod 27, a bell crank 28 on a shaft 30 against a spring 29, causing a hammer 45 to strike a string 12. Each hammer 45 comprises a head 49 mounted on a resilient flat strip 46 secured to the bell crank 28 and has an extension 54 carrying a damper 55. On operation of the hammer, the extension 54 engages a wheel 53 and bends a resilient member 51 mounted on an adjustable anchoring member 34 which also carries the spring 29. Oscillation of the key 11 then causes the hammer head 49 to vibrate against the string 12.
Patent GB-175550-A (GB)
Title: An improved garden rule or spacing device for plants
IPC: A01G1/12
Filed: 1921-03-15
Abstract: 175,550. Knight, S. C. March 15, 1921, [Convention date]. Drawings to Specification. Measures of length; footrules, yardsticks, and like measures.-Wooden rules for correctly spacing plants and seeds have transverse grooves cut in them at intervals of 11“ inches, and these intervals are subdivided into quarters by smaller grooves. The grooves may be V-shaped so as to grip a string by means of which the rows may be laid out. A table showing the number of divisions required between various plants is used with the rule.
Patent GB-550397-A (GB)
Title: Improvements relating to flexible pipe connections
IPC: F16L51/00
Filed: 1941-07-02
Abstract: 550,397. Pipe joints : exhaust-silencers. BLANCHARD, J. G. July 2, 1941, No. 8350. [Class 99 (i)] [Also in Group XXVII] A flexible connection for exhaust cr other pipings comprises a length of flexible tubing 6 connecting an enlargement 2 on one section of the piping 1 to a similar enlargement 3 on the other section of piping 4. the pipe 1 extending within the flexible tubing so as to reduce leakage through the latter. In the form shown the pipe 4 is connected to a silencer 5, and the annular space between the pipe 1 and tubing 6 may also act as a silencer and may contain asbestos or like packing. Specifications 392,852, [Group XXVII], and 450,418 are referred to.
Patent GB-231856-A (GB)
Title: Improvements in and relating to flying machines
IPC: B64C39/00
Filed: 1925-03-28
Abstract: 231,856. Moineau, R. J. L. April 4, 1924, [Convention date]. Propelling.-Aircraft are supported and propelled by one or more rotary propellers with their axes parallel to the direction of flight the incidence of the blades being altered cyclically during rotation bv means of an eccentric of which the eccentricity can be varied in magnitude and direction. As shown, the blades are carried by spokes connected' to the main shaft and their rear edges b, b<1> &c. are connected by rods t to a ring rotatable about a centre O<1>, O1<1> which can be moved by the pilot. If O<1> is vertically above the centre 0 of the main shaft the propeller rotates of itself with the engine cut off. The points O<1>, O1<1> can be moved separately and when they are not in the same relative positions with respect to 0 a couple is produced in some plane containing the axis 0 O. The centres O<1>, O1<1> are moved by guides 16, 17, 16<1>, 17<1>, Fig. 9, controlled by wires 18 - - 21, 18<1> - - 21<1>. The wheel 4 is keyed to a rotatable shaft 5 carrying pulleys 6, 7 and pivoted at 8 to a shaft 9. The shaft 9 is unable to rotate but rocks about a ball and socket 9<a>. Two propellers may be arranged side by side, rotating in the same or opposite directions. Alternatively two propellers may be mounted on a common shaft. These mav be of equal size or, as shown in Fig. 11, the forward one may be large and the rear one small. In this case the larger one moves the centre of gravity of the machine and the smaller one causes it to pivot about the centre of gravity. A screw propeller 26 of variable pitch may be clutched to the same shaft.
Patent GB-1081212-A (GB)
Title: Drying materials in web form
IPC: F26B3/34
Filed: 1966-02-25
Abstract: 1,081,212. Energy supply to dielectric heating electrodes. FITCHBURG PAPER CO. Feb. 25, 1966 [Feb. 25, 1965], No. 8515/66. Heading H5H. [Also in Division F4] Two assemblies of rod electrodes are carried on one side only of a web 14 to be dried in a rotatable rectangular housing 34 mounted in a wheeled supporting framework 16 by yokes 24, 26, which framework also carries an H.F. or R.F. generator 98 supplying energy to the electrodes. The electrodes of the two assemblies are positioned alternately, coplanar, in parallel and transverse to the direction of web travel, each electrode of one assembly being energized by connection at 62 to a lower R.F. plate 64 and the electrodes 66 of the other assembly being earthed by connection to the housing. Variation in the energy applied to the electrodes is achieved by altering the spacing between the fixed plate 64 and a lower, vertically adjustable plate 70 which may be coupled to a further plate 74. A coupling member, Fig. 5 (not shown), enables connection between the generator and the plate 70 irrespective of the degree of rotation of the housing. A control panel 112 and transformers, rectifiers and other equipment 110 may be remotely positioned. The apparatus is in modular form to allow combinations of the apparatus in various positions e.g. stacked vertically.