baber/WOPTO huggingface dataset:
Patent GB-211463-A (GB)
Title: Improvements in arrangements for yoking tilling tools to agricultural tractors
IPC: A01B23/04
Filed: 1924-02-05
Abstract: 211,463. Mozer, R. Feb. 14, 1923, [Convention date]. Rotary-tool implements; draught devices. - Rotary harrows are connected to tractors through a universal joint and through driving-mechanism provided with a friction clutch independent of the tractor clutch. The universal ioint connects the gear-casing e of the implement to a projecting casing d at the rear of the tractor a. The universal joint and the mechanism for driving the implement from the tractor shaft are enclosed within the casing d. The driving-mechanism comprises a shaft driven by gearing and a friction clutch and connected by a cordon-like joint to a chain-wheel that drives the implement. By means of a lever l the clutch may be thrown out of action without stopping the tractor, so as to allow the implement to roll freely on the ground. A cross-bar on the gear-casing e is connected bv stretched springs r', r<2> to a bar m fixed on the tractor. The springs tend to lift the tilling-implement from the ground and to keep it parallel to the axle of the tractor. Chains or cables limit the lateral deviation of the implement. According to the Specification as open to inspection under Sect. 91 (3) (a), other yielding clutches may replace the friction clutch, and other implements may be similarly connected to the tractors. This subject-matter does not appear in the Specification as accepted.
Patent GB-361722-A (GB)
Title: Improvements in screw propellers
IPC: B64C11/34
Filed: 1931-01-30
Abstract: 361,722. Screw propellers. BARKER, G. G., 59, Chancery Lane, London.- (Eclipse Aviation Corporation ; 545, North Arlington Avenue, East Orange, New Jersey, U.S.A.) Jan. 30, 1931, No. 3030. [Class 114.] Variable pitch screw propellers of the kind in which the boss is longitudinally displaceable along the driving shaft, the pitch, is altered by racks secured to the shaft which engage toothed rings on the root of each blade. On the splined driving shaft 7 is disposed a square section block 8 which is prevented from endwise movement by cone members 9, 10, the corners of the square block 8 being provided with ball races 15 upon which the hub member 14 may slide. The hub has radial sockets 16 in which the blade roots 6 are rotatablv mounted. Each blade root has a pinion 25 which engages a rack 26 supported-at the end in a plate 27 secured to the central block 8.. Carried by the plate 27 are damper cylinders 33, the pistons 35 of which are coupled by rods 37 with the hub member. The disposition of parts is such that the pitch is at maximum when the propeller is at rest and diminishes as the speed goes up. The change in pitch is limited by the use of an adjustable stop member.
Patent GB-699166-A (GB)
Title: Improvements in or relating to gas turbine plants
IPC: F02C3/22
Filed: 1952-02-05
Abstract: 699,166. Generating combustion products under pressure. MASCHINENFABRIK OERLIKON. Feb. 5, 1952 [March 21, 1951], No. 3057/52. Class 51(i) [Also in Group XXVI] In a combustion chamber of a gas turbine plant using gaseous fuel only a part of the fuel is burnt with combustion air introduced from outside, the remainder of the gaseous fuel is separately introduced into the combustion chamber so as to reduce the temperature of the combustion gases and walls of the combustion chamber. In the arrangement shown, the fuel gas is compressed in a compressor 5 and preheated in a recuperator 2 before passing to a combustion chamber 3 feeding a turbine 4 which exhausts through the recuperator 2. Only a part of the fuel gas is burnt in the combustion chamber 3 with air supplied by the compressor 1, the remainder is passed through a line 6 to mix with the combustion products before they enter the turbine. The exhaust of the turbine 4 may be used as a gaseous fuel for other purposes.
Patent GB-137633-A (GB)
Title: Improvements in or relating to safety enclosures for children
IPC: A47D13/06
Filed: 1919-02-07
Abstract: 137,633. Lovell, E. Feb. 7, 1919. Folding cots; nursery seats.-A combined safety enclosure, seat, swing, and cot for children comprises a collapsible frame built up of two side frames connected together by transverse cross bars 8, Fig. 1, having bolts and wing nuts enabling the side frames to be folded together when the nuts are loosened. Each side frame has a removable top bar 4 upon which a canvas or mackintosh sheeting cot may be threaded, as shown in Fig. 2, and a longitudinal slotted bar 6 to which the side members 20 of a seat 21 may be fixed by means of clamps 12, 16, connected by a bolt passing through the slot with a nut on the outer side. The upper portions of the side members 20 carry bolts which pass through holes in the upper parts of the clamps 12 and are secured by wing nuts. The lower edges of the members 20 are curved to enable the seat to be used as a rocking chair when it is placed on the ground. For use as a high chair, the chair may be clamped to a stand, Fig. 14, by means of bolts 34a engaging recesses 35 in the side members 20. The stand has a seat 33 so that it may be used independently as a seat, and a folding back 37 may be swung round into the position shown to prevent the chair from rolling backwards on its castors 32. A table 42, Fig. 5, may be fitted to the collapsible frame by means of slots 40 on the uprights.
Patent GB-100152-A (GB)
Title: Improvements in or relating to the Electrolytic Production of Sodium Perborate.
IPC: C25B1/32
Filed: 1916-03-01
Abstract: 100,152. Deutsche Gold- & Silber- Scheideanstalt, vorm. Roessler. March 10, 1915, [Convention date]. Sodium perborate, obtaining; electrodes.-Cathodes used in the production of sodium perborate (bv anode oxidation) are made of substances which, either as such or in combination, tend to decompose the perborate catalytically, good yields being obtained notwithstanding this tendency. Such substances are lead, iron, nickel, copper, and carbon. Metals not having the property referred to, for instance zinc, tin, and aluminium, are found to be unsuitable. At the surface of the electrolyte, the cathodes, unless of nickel, are protected against the action of the liquid and air, for instance by coating them with a metal such as platinum, or a resistent varnish, or by covering them by rubber tubing.
Patent GB-914397-A (GB)
Title: Improvements in or relating to automatic telephone exchange terminal equipment
Inventor: FLOWERS THOMAS HAROLD
IPC: H04Q1/14
Filed: 1959-03-09
Abstract: 914,397. Telephone exchange wiring. POSTMASTER-GENERAL. March 3, 1960 [March 9, 1959], No. 8124/59. Drawings to Specification. Class 40 (4). In an automatic exchange the normal intermediate distribution frame is omitted, wiring from the main distribution frame, containing the line protective equipment, being effected directly to the exchange apparatus by means of jumpers. These are preferably run vertically up or down the faces of the exchange equipment running horizontally overhead or beneath the space lying between the exchange equipment rack and the main distribution frame. Alternatively, the exchange equipment and the frame may be vertically above each other on different floors. The invention is particularly useful in electronic systems.
Patent GB-431446-A (GB)
Title: Improvements in or relating to tools for gear cutting
IPC: B23F21/22
Filed: 1935-01-31
Abstract: 431,446. Gear-cutting. GENY, A. J., 84, Rue Lemerchier, Amiens, Somme, France. Jan. 31, 1935, No. 3161. Convention date, Jan. 31, 1934. [Class 83 (iii)] A gear-cutter of the type in which the cutting-edge of a tool is caused to remain parallel to itself during a rotary cutting movement comprises a rotatable plate carrying a number of cutting tools and a second plate, having cranks which are connected to the tools, adapted to rotate on a boss, fixed eccentrically to the first plate, in unison therewith so that the position of each tool is controlled by a deformable parallelogram. The cutters 3, one only of which is shown, are rotatably mounted in a circle around the plate 1. The latter rotates, on the shaft 2, eccentrically in the boss 4 of a worm wheel 10, the outside of the boss carrying a disc 5 into which pins 8 are rotatably fitted, these serving to rotate levers 7 which are keyed to the ends of the cutters or cutter holders. This arrangement ensures that the operative edge of the cutter moves parallel to itself when the plate 1 is rotated through the shaft 2, the levers 7 being of the same length as the eccentricity e. A worm 9 with a graduated collar is used to adjust the wheel 10 and thereby alter the position of the cutters, either for working or for grinding. The cutters may also be arranged in a spiral.
Patent GB-536317-A (GB)
Title: Improvements in earth scrapers
IPC: E02F3/64
Filed: 1940-02-20
Abstract: 536,317. Earth scrapers. ONIONS & SONS, Ltd., and ONIONS, G. F. Feb. 20, 1940, No. 3174. [Class 68 (i)] In an earth scraper comprising a container with a blade at its forward end adapted to dig the earth and propel it into the container, an apron adapted to close the front of the container, and a tail gate adapted to be advanced to empty the container, a carriage is rigidly fixed behind the tail gate by struts and. is movable on guides carried by the container or machine frame, and the carriage and tail gate are impelled forwardly by a cable or cables passed over pulleys on the carriage and further pulleys on the machine frame and behind the tail gate. A box H is supported from the container A by struts h, and is connected to spaced bars J and an upper bar N connected at their rear ends by a detachable pillar P. The tail gate E carries at its upper end rollers e' running on the inner wall of the container, and overhanging brackets e carrying rollers e<SP>1</SP> running between tracks a and flanges a<SP>1</SP> on the outer wall of the container ; further, the tail gate is connected by struts G, 'G' to a carriage F carrying guide rollers Q, f<SP>9</SP>, bearing below and above on the bar N, and a further guide roller f<SP>6</SP> running between the bars J. A cable R passes over pulleys in the box H and carriage F to an anchorage, and on hauling on the cable, the carriage F and tail gate are advanced, and a spring in a casing S is compressed, the spring returning the tail gate on release of the cable ; the cable may also lift the front apron of the container.
Patent GB-267096-A (GB)
Title: Process for the manufacture of decorated objects of plastic material
IPC: B44C5/00
Filed: 1927-02-04
Abstract: 267,096. Guedalia, M. M. A. de. March 6, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Processes.-Decorated objects of plastic material simulating animal skins or painting or precious stones are made by incorporating between two sheets of plastic material, one of which is transparent, shaped pieces of glass, metal, coloured plastic material, or textile fabric. The one sheet of plastic material, optionally transparent, is laid upon the table of a press, a stencil or the shaped separate pieces of material are laid upon it, and a covering layer of plastic material added, prior to the hot or cold pressing of the completed sheet. The waste products from the manufacture of spangles for dresses are mentioned as suitable decorative materials. Reference is made also to the production of a guilloched pattern by the use of a guilloched matrix.
Patent GB-554952-A (GB)
Title: Improvements in or relating to anhydrite plasters
IPC: C04B22/14
Filed: 1942-03-13
Abstract: 554,952. Anhydrous calcium sulphate plasters. ETRIDGE, J. J., HIMSWORTH, F. R., LEFEBURE, V., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. March 13, 1942, No. 3314. [Class 22] A catalyst for rapidly setting an anhydrous calcium sulphate plaster comprises at least one each of (1) monovalent sulphates i.e. an alkali metal or ammonium sulphate or acid sulphate, (2) divalent sulphates i.e. zinc, cupric or ferrous sulphate, and (3) trivalent sulphates, i.e. aluminium or ferric sulphate. The catalyst may be made up from single or double salts and 0.5 to 4 per cent. may be used. Voiding of plasters which contain some carbonate may be prevented by using not more than 0.4 per cent. of aluminium and alkali metal sulphates. Pigments, decorative aggregates, asbestos, sawdust, wood pulp, or textile fibres may be incorporated. Specifications 451,113 and 459,134 are referred to.
Patent GB-1530951-A (GB)
Title: Furniture
IPC: A47B57/42
Filed: 1976-01-28
Abstract: 1530951 Shelving SOC D'EXPLOITATION DES ETABS SAM & LABIGNE 28 Jan 1976 [9 Oct 1975] 03333/76 Heading A4B A display stand comprises a base 14, 15', 15"  carrying a pair of posts each comprising tubes 3,4, 5 and 3', 4', 5' releasably interfitted end to end by engagement of the lower end of one tube within the upper end of the next lower tube, the lowest tubes 3, 3' being welded to the base, hollow panels 6, 7 through which the posts extend, bracket rods 9, 9' supporting shelves 10 and having annular grooves 20 at their inner ends to anchor in holes 18 in the posts after being passed through aligned holes in the panels 6, 7, and a platform 11 supported on the base. The rods 9, 9' have bent ends so that the shelves 10 may be horizontal on downwardly and forwardly inclined stud bolts 21, 21', 22, 22' carried by the rods 9, 9' engage in blind bores in the shelf 10. In another embodiment the base extends also to the opposite side of the posts and shelves are supported on both sides of the panels 6, 7.
Patent GB-396700-A (GB)
Title: Improvements in and relating to suspension insulators for overhead electric transmission lines and the like
IPC: H01B17/08
Filed: 1932-02-04
Abstract: 396,700. Insulators. WALLACE, J. M., 83, Love Lane, Pinner, Middlesex. Feb. 4, 1932, No. 3388. [Class 36.] The pin head 1, Fig. 2, of a suspension insulator is retained within the socket of the cap 3 of the next insulator in the chain by a solid. metal washer or other separate non-deformable spacer which is inserted between the pin head and the bottom of the socket and presents a large supporting surface to the bottom of the pin. The spacer may be retained in position by a split pin which is passed through a hole 4 in the cap and bent around. the spacer, or a deformable projecting part of the spacer may be bent to engage the cap. In the construction shown in Fig. 8, a spacer 15 carries a lug 12 which is adapted to fill the aperture 2, Fig. 2, formed in the side of the socket to allow insertion of the pin head therein. A split pin passed through the hole 4 and through a slot 13 in the spacer retains the spacer within the socket.
Patent GB-1142176-A (GB)
Title: Polytetrafluoroethylene sinterings
Inventor: ZULIANI GIUSEPPE
IPC: C08K3/34
Filed: 1968-01-23
Abstract: 1,142,176. Shaping PTFE. MONTECATINI EDISON S.p.A. 23 Jan., 1968 [27 Jan., 1967], No. 3395/68. Heading B5A. [Also in Division C3] Sinterings are prepared by mixing polytetrafluoroethylene resin powder with silicon monoxide powder, pre-forming the mixture at ambient temperature in a compression mould at between 1000 and 2500 kg. per sq. cm., sintering the pressed mixture under pressure at from 330‹ C. to 360‹ C. for from 1 to 3 hours, gradually cooling the sintered mixture in the compression mould for not less than 12 hours to ambient temperature and gradually relieving the pressure.
Patent GB-114643-A (GB)
Title: Improvements in or relating to Draught Apparatus for Furnaces.
Inventor: THORNBERY JOHN RUSSELL
IPC: F23L9/00
Filed: 1917-03-08
Abstract: 114,643. Thornbery, J. It., (McKce, J. T.). March 8, 1917. Steam-generator furnaces; smoke, preventing and consuming; blast apparatus.-A smoke-consuming furnace comprising a pair of alternatelyfired grates separated by a wall W with an aperture O at its front end is fitted with blast apparatus by means of which the draught over a recently-fired grate is reversed so that the smoke &c. from it is impelled through the aperture O and is consumed in passing over the incandescent fuel on the other grate. The blast apparatus consists of pipes 1, 1<a> with outlets 2, 2<a>, 1, 01<a> at the front and rear respectively. The draught is reversed by valves CV<1>, CV<2>, which are controllable manually, or automatically by the fire-doors. The branches 2, 2<a> may be omitted if n good natural draught is available.
Patent GB-801648-A (GB)
Title: An interferometer for measuring purposes
IPC: G01N21/45
Filed: 1957-02-04
Abstract: 801,648. Interferometers. ZEISS-STIFTUNG, C. [trading as ZEISS, C. [Firm of]]. Feb. 4, 1957 [Feb. 11, 1956], No. 3713/57. Class 40 (3). [Also in Group XX] In an interferometer for measuring the refractive index of a gas by movement of an interference pump system produced when the gas is introduced into a measuring chamber 5 through which light from a source 1 passes to interfere with light passing through a chamber 51 containing a standard substance, a second set of stationary fringes are produced and photo-cells are used to operate a compensator to return the moving fringes to their original position. The photocells 16, 16<SP>1</SP>, Fig. 6, connected to a resistance 17, operate a motor 18 when relative movement takes place between the fringe systems, the motor rotating a compensating plate 6, Fig. 2, in one interfering beam to return the fringes to their original position.
Patent GB-175886-A (GB)
Title: Improvements in packing for stuffing boxes
IPC: F16J15/22
Filed: 1921-01-31
Abstract: 175,886. Withers, J. S., (Dickson & Co., S.). Jan. 31, 1921. Packing, compound metallic and non-metallic. -In packing comprising soft-metal strips with a flexible backing, the strips interlock by a groove and tongue or other joint, and their wearing surfaces are formed with transverse slots. In the arrangement shown strips 10, 11 form groove and tongue joints 14 with one another. The wearing surfaces are formed with oblique slots 12, preferably inclined at 45‹ and forming approximately triangular projections 13. The strips may be formed with flanges 16 and may be inclined outwards from the flanges to the wearing surface. The flexible envelope may be of woven asbestos or fine wire embedded in rubber or rubberized canvas. The backing 18 is preferably formed by folding the fabric and is enclosed by a piece of fabric the edges of which are rolled to form the side portions 19 of the envelope. The packing is finally compressed and vulcanized. In a modification the wearing portion of the packing consists of a plurality of strips in contact and arranged so that the transverse grooves break joint.
Patent GB-468936-A (GB)
Title: Printing metal band
IPC: B41M1/28
Filed: 1937-02-08
Abstract: 468,936. Printing on metal bands. BAUER, W. S. Feb. 8, 1937, No. 3737. [Class 100 (ii)] In printing designs &c. continuously on metal band, in order to avoid set-off of the impression as the band is wound into a roll, the band B prior to printing is passed between rollers which form in the band very small pointed or rounded projections a serving to prevent contact between the adjacent layers of the roll. The projections a are preferably arranged in at least two rows, one at least on each side of the centre line of the band, and staggered, as shown, so that the projections of one layer will rarely coincide with the slight hollows of the adjacent layer, and such coincidence will not allow contact of the adjacent layers. The impressions are preferably made on the side of the band on which the projections are, and when letters are printed the arrangement is such that not more than one projection will be included in a letter. The band may be covered with an appropriate background prior to printing the design &c.
Patent GB-414667-A (GB)
Title: Manufacture of halogenated arylamines
Filed: 1933-02-07
Abstract: Chloro- or bromo-derivatives of arylamines having a free p-position are prepared by converting the amines into their formyl derivatives, chlorinating or brominating the latter in solution in a water-insoluble inert organic solvent, and removing the formyl group by hydrolysis with mineral acid.  Preferably, the arylamines are formylated by heating them with an excess of concentrated formic acid, the organic solvent is then added, the solution is heated to expel water and excess of formic acid, and the residual solution is halogenated directly.  Examples are given of the preparation of 5-chloro- and 5-bromo-o-toluidine, 5-chloro- and 5-bromo-2-amino-1 : 4-xylene, and 6-chloro- and 6-bromo-3-aminocresidine; in each example, the amine is formylated as described above, the reaction product is heated with toluene to expel water and excess of formic acid, and the residual solution is treated with chlorine or bromine at about 20 DEG  C.; the solution is then warmed with aqueous hydrochloric acid, cooled, and filtered to separate the salt of the halogenated amine; the toluene is recovered from the filtrate. Chlorobenzene may be used as the solvent instead of toluene.  In preparing the bromine compounds, one half of the theoretical amount of bromine may be added, and chlorine then passed into the solution to liberate bromine from the hydrobromic acid formed.  The Provisional Specification refers to the use of sulphuryl chloride as the chlorinating agent, benzene as the solvent, and sulphuric acid as the hydrolyzing agent.  Specification 294,462, [Class 2 (iii)], is referred to.
Patent GB-905437-A (GB)
Title: Improvements in acoustical panels and in structures employing such panels
IPC: E04B1/84
Filed: 1961-02-01
Abstract: 905,437. Acoustic panels. KEMP, W. G. Feb. 1, 1961, No. 3850/61. Classes 20 (4) and 87 (1). In an acoustic panel comprising a soundabsorbing honeycomb core 16 contained between a perforated facing sheet 12 and a soundreflecting sheet 14, the sheet 12 has its edges 20 turned back so as to bear against edge flanges 30 of the sheet 14. As shown in Fig. 6, the edges and flanges may be clamped together. The core 16 consists of a honeycomb structure of synthetic plastic, expanded metal, asbestos, or paper, bonded to the sheets 12, 14, and filled with loose fibres or wool. The sheets 12, 14 may be of metal or synthetic plastic. The panels are supported on an inverted T-bar 70 and when assembled over a partition wall the cell size of the honeycomb core is less than the thickness of the partition.
Patent GB-104730-A (GB)
Title: Improvements in or relating to Automatic Player-pianos with Keyboards.
Inventor: MURDOCH JAMES SEMPLE
Filed: 1916-03-15
Abstract: 104,730. Murdoch, J. S., and Bennett, J. March 15, 1916. Player-pianos; expression-controlling.-Control levers a are mounted on a board b which slides in guides c beneath the key-bed (not shown), so that, when out of use, the levers and board may be concealed; locking-bolts h on the board slip into sockets in the guides e in each extreme position of the board. The bolts are pivoted to arms m on a shaft k provided with a spring-urged handle.
Patent GB-339191-A (GB)
Title: Improvements relating to liquid fuel, gas and like burners
IPC: F23C5/02
Filed: 1930-02-05
Abstract: 339,191. Collins, T. B. Feb. 5, 1930. Burners, mounting.-A head a carrying a liquid fuel or gas burner is attached by an inclined hinge a<1> to a stationary frame b secured to the furnace and is normally held in position by the engagement of an arm h<3> on the spindle h<1> of a hand-wheel h<2> with a flange b<1> on the frame b. When the burner supply valves have been closed by rotating the hand-wheel h<2> in the manner described in Specification 339,190, the arm h<3> is disengaged from the flange b <1> and the burner head swings open by gravity on its inclined hinge a<1>. A rod j normally pressing against the frame b is moved by a spring as the head swings open to cause a lever i to engage the arm h' and to prevent operation of the burner until it is returned to its normal position. The furnace aperture may be provided with a closure plate, such as described in Specification 339,192, [Class 51 (i), Furnaces and kilns, Combustion apparatus of].