baber/WOPTO huggingface dataset:
Patent GB-420542-A (GB)
Title: Improvements in motor driven scarifiers
IPC: B62D51/04
Filed: 1933-07-13
Abstract: 420,542. Machines for working land; tractors. GOBIET, A., 287, Kasseler Street, Rotenburg-on-Fulda, Germany. July 13, 1933, No. 19868. [Class 6 (i)] [See also Group XXXI] In a motor scarifier the land wheels are driven from the engine through a manually controlled change-speed gear, a worm drive, differential gearing, and a lamellar or other clutch coupling 5 between the engine and the change-speed gear, and the scarifying tools 34 are mounted on a horizontal transverse shaft 31 which is driven through additional gearing having setting or controlling means, and through a second clutch coupling 28, the scarifying tools with their supporting means and part of their driving gearing being removable as a unit by detaching them at the coupling 28. The clutch 5 drives a shaft 6 geared to a sleeve 59 on it by spur wheels 19, 21, shaft 23, and gear wheels 22, 20. The sleeve 59 drives the axle 2 through the change gearing 7, 12, 13, 14, shaft 11, worm gearing 15, 16, and differential gearing 17, 18. The driving shaft 29 of the scarifier is driven from spur wheel 22 through a movable wheel 24, a shaft 25, and the lamellar clutch coupling 28 which is driven by a key on the shaft 25 and can be withdrawn from it. The change wheels 7 are movable by means of a fork 8, rod 9, and handle 10 and the gear wheel 24 by similar hand-operated appliances 26, 27. The coupling 28 is enclosed in a disengagable two-part casing 32 the rearward part 37 of which is supported by an adjustable skid 39 on which a wheel 40 may be mounted for transport. The tyres of the ground wheels 3 may be replaced by wider ones. The scarifier shaft 31 is driven from the shaft 29 by bevel gearing 30. The scarifying tools are fixed on discs gripped between spring-pressed discs on the shaft 31 so that they may slip on meeting an obstruction. Claws 34a or other tools may be employed. A jointed hood 42 is supported by a support 43. A draw link 58 is, provided for coupling ploughs, harrows, &c., to the machine. A pulley may be provided on the shaft 31 for driving saws, pumps, &c. Handle-bars 48 are mounted in a forked holder 47 on a sleeve 46 mounted on a vertical pin 45. They may be secured in various positions by turning the sleeve on the pin and locking it by a bolt 50 operated by a rod 49. A strut 55 mounted on a crossbar 54 may be thrown over to support the handle-bars when these are lifted to raise the scarifier. The motor starter or switch is actuated by a rod 53 and a lever 51 provided with a locking-quadrant 52. The machine may be provided with a wheeled shelter which may be drawn behind it.
Patent GB-153278-A (GB)
Title: Improvements in and relating to diaphragm compressors
IPC: F04B45/053
Filed: 1920-07-09
Abstract: 153,278. Corblin, H. Oct. 27, 1917, [Convention date]. Diaphragm pumps. - A compressor comprising a diaphragm oscillating in a chamber formed by two dished plates, the edges of which grip the diaphragm, one of the plates containing the suction a n d discharge valves which are mounted substantially flush with the surface to diminish clearance, is actuated by a pump displacing a larger volume of liquid than the capacity of the compression chamber, the pump being provided for this purpose with valves opening at a certain pressure and vacuum respectively. The conical recesses of the plates, forming the compression chamber, are flattened at their apexes. As shown, inlet and outlet gas valves e, f are provided flush with the flattened portion of the lower plate. The pump piston is formed with a spring- pressed pressure valve i<1> which opens at the lower limit of the piston's travel, and a vacuum valve i<2> which is opened by the vacuum formed under it as the piston rises against the pressure of a leaf spring i<3>. The amount of the working liquid is regulated by holes h<1> in the piston by which communication is made with a cup h<2> of the liquid.
Patent GB-1142413-A (GB)
Title: A process for the manufacture of 3-keto-17-ketal steroids
Inventor: DRYDEN HUGH LATIMER
IPC: C07J75/00
Filed: 1967-05-01
Abstract: 1,142,413. 3-Keto-17-ketal steroids. G. D. SEARLE & CO. 1 May, 1967, No. 19934/67. Addition to 1,106,827. Heading C2U. Estra - 4 - ene - 3,17 - dione - 17 - ketals (wherein the ketal group is dialkoxy or alkylenedioxy) are prepared by selective hydrolysis in a neutral or alkaline medium containing an alkyl borate of the corresponding 3-enamines (i.e. #<SP>3.5</SP>-3-amino compounds wherein the amino group is the residue of a heterocyclic amine), prepared in turn by ketalization of the 17-ones with an alkanol or glycol in the presence of a trialkyl orthoformate and an acid catalyst.
Patent GB-770912-A (GB)
Title: An improved method of producing synthetic stone elements which include an asbestos or like inorganic cement
IPC: B28B1/52
Filed: 1954-07-08
Abstract: 770,912. Asbestos-cement products covered with aluminous cement compositions &c. AMIANTUS AKT.-GES. July 8, 1954 [July 9, 1953], No. 20021/54. Class 96. A layer of asbestos-Portland-cement &c. 10 from which gypsum has been removed with the mixing water during manufacture, is covered with a wet or dry layer of coloured asbestosaluminous-cement &c. 9 supplied from a double hopper 1 at each of the outlets of which rotates a cylinder 4 covered with a coarsemesh screen material 6 which regulates the rate of discharge of the mixture but does not function as a screen. To the aluminous-cement &c layer may be added magnesium silicofluoride, and also sugar to retard setting. The aluminous-cement &c may be supplied in front of the forming-roller of a paper-board machine.
Patent GB-334652-A (GB)
Title: Improvements in telephone and like transmission systems
IPC: H04B3/14
Filed: 1929-06-29
Abstract: 334,652. Blumlein, A. D. June 29, 1929. Impedance networks.- In an electric network of Wheatstone bridge form (Figs. 1 and 2) two arms comprise mutually inductive windings 1, 2, while the other two arms comprise impedances ZA, ZB which are designed and calculated to give the network desired attenuation, phase and impedance characteristics. The mathematical theory is discussed. Fig. 4 shows how two such networks are connected in series the terminals 8 being short-circuited, and examples are given also of four and five networks in series. Two windings 1, 2 should be as tightly coupled as possible and in some cases a resistance may be adied to compensate for leakage, while, to balance the coil capacities, shielding may be employed or the centre point may be earthed. The windings 1, 2 may be unequal, and their ratio may be either positive or negative, as shown in Figs. 11, 13. Fig. 15 shows a modification in which the impedances are interchanged with the input and output terminals, attenuation and phase characteritics being unaltered.
Patent GB-948403-A (GB)
Title: Improvements in and relating to drive-transmissions
IPC: F16H9/04
Filed: 1961-06-03
Abstract: 948,403. Reversing gearing; belt gearing. WOLSELEY ENGINEERING Ltd., and R. S. DRAKE. May 18, 1962 [June 3, 1961], No. 20115/61. Headings F2D and F2Q. Reversing gearing comprises a pair of flexible driving means, one of which couples the driving and driven members and the other couples one of the members with a third member frictionally engaged with the other one member, the driving means being clutchable to provide rotation of the driving member relative to the driven member and rotation of the two members in the same or opposite directions. A driving shaft 11 carries a V-belt pulley 13 connected by a belt 17 to one side 15 of a double pulley secured on a driven shaft 12. A friction wheel 14, rigid with the pulley 13 may engage a friction wheel 26 rigid with a pulley 27 connected by a belt 30 to the other pulley 16 of the double pulley. An idler tensioning wheel 29 is carried on an arm 28 rigid with an arm 24 supporting the double wheel 26, 27 and pivoted on a shaft 22. A second tensioning wheel (not shown) acts on the belt 17 to provide forward drive or neutral, and release of the second tensioner together with engagement of the friction wheels 14, 26 against a tension spring 31 provides a reduced speed reverse. The second tensioning arrangement and the shaft 22 may be controlled by cables from the handlebars of a cultivator.
Patent GB-243084-A (GB)
Title: Improvements in four stroke cycle compound internal combustion type fluid pressure engines
IPC: F02B75/02
Filed: 1925-02-12
Abstract: 243,084. Rendell, E. D. Feb. 12. 1925. Four - stroke engines.-A four-strokecycle compound engine comprises two high-pressure cylinders A, B and a lowpressure cylinder C between them. The crank pin M associated w i t h the cylinder C is set at 180‹ relative to the pins K, and is carried by heavier crank webs for the purpose of balancing the crank-shaft about its axis. The crank pins K may also be lightened by drilling holes Q. The working strokes in the high pressure cylinders H, ]3, occur alternately, one for each revolution of the crank-shaft, each out-stroke of the piston in the low-pressure cylinder B being, however, a working stroke. The high pressure cylinder inlet and exhaust valves I, D are arranged in a plane on one side of the engine; the exhaust valves of the high pressure cylinders act as the inlet valves for the low pressure cylinders, the communicating passages being as short as possible. The low-pressure exhaust valve H is placed on the other side of the engine. The valve-stem packings consist of U-shaped asbestos rings which have been boiled in tallow, or grease and graphite and dug out of the congealed mass when cold. Specification 231,223, [Class 122 (iii), Steam-engines, Kinds &c.], is referred to.
Patent GB-442651-A (GB)
Title: A device for automatically controlling the operation of conveyor-fed bottle-filling and/or other machines
IPC: B67C3/24
Filed: 1935-07-15
Abstract: 442,651. Endless - belt conveyers. BROADHURST, S. F., and ALBRO FILLERS & ENGINEERING CO., Ltd., Watson's Road, Wood Green, London. July 15, 1935, No. 20179. [Class 78 (i)] [See also Group XVII] A device for automatically controlling the operation of conveyer fed bottle filling and /or other machines comprises a lever arranged relatively to the conveyer so that when one of the bottles or other articles being transported thereby is not in the desired position the lever is engaged by this article and moved to control pneumatically actuated means adapted to operate a clutch, switch or other suitable means whereby the operation of the machine is stopped. Bottles 2 are carried on a band 1, near which is positioned an L-shaped lever 3, pivoted to a bracket 4 cast on the wall of a chamber 5, through a perforation 7 in the lower wall of which extends the end of the stem of a needle valve 6 to rest upon the shorter arm of the lever 3. The upper end of valve 6 carries a disc 8 which slides in the chamber 5. The wall of the chamber 5 has a port 9 connected by a tube 10 with a pipe 11 one end of which is connected with an air pump (not shown), and the other end with the inner end of a cylinder 12 having a piston 13. The piston rod 14 passes through a support 15 to a suitable clutch or jockey pulley normally in contact with the driving belt of the machine and is encircled by a spring 16 normally tending to force the piston 13 into the cylinder 12. The compression of spring 16 is adjusted so that while the clutch or jockey pulley is held in the position for driving the machine, equilibrium is reached between the pressures on the piston due to the pump and the spring. When the lever 3 is tripped by a bottle or other article, the needle valve 6 is raised from its seat, thus opening the chamber 5 to the atmosphere, reducing the pressure in the cylinder 12, and causing the spring 16 to move the piston 13 inwards to declutch the machine or disengage the jockey pulley from the driving-belt and so stop the machine. After re-positioning the bottle on the conveyer, the pressure in chamber 5 returns the valve 6 to its seat and hence the lever 3 to its normal position. To prevent the disc 8 from retarding the action of the valve it has slots 17 round its periphery. To prevent too sudden restarting of the machine, the pipe 11 is constructed at 18. A number of such devices may be employed at various points along a conveyer and /or at various positions on a filling-machine, or at various points on both a filling and capsuling or sealing machine. In such a case the tubes 10 of these devices are connected by branch tubes 10<a> (Fig. 1) with the tube 10 already described.
Patent GB-986117-A (GB)
Title: Ventilator hood with collapsible bonnet
IPC: F24C15/20
Filed: 1961-06-05
Abstract: 986,117. Ventilating. NUTONE Inc. June 5, 1961 [March 6, 1961], No. 20205/61. Heading F4V. A ventilator hood comprises a bonnet 27 movable between an open position (Fig. 2) in which it extends outwardly from a housing 25, and a closed position (Fig. 8) in which it is within the housing. The upper corners of the bonnet are fitted with T-section bolts 93 which slide in vertical slots 90 in mounting plates 42 and arms 82 are pivoted to the bonnet at 84 and pass through slots 79 in the mounting plates to be pivoted at 83 to wheels 70 which are freely mounted on pins 72 fixed to each mounting plate. Projections 80 on the wheels 70 abut the arms 82 when the bonnet is in the closed position to prevent further movement. Further projections 81 on the wheels 70 arrest the bonnet in the open position. Springs 86 connect the arms 82 to the housing to help to counterbalance the bonnet and nylon riders 92 are provided in slots 91 to form a sliding bearing for the bonnet. The side walls 52 and 53 of the bonnet pass, in the closed position, through slots between the front wall 26 of the housing and its side walls 31 and 32. The slots are covered by swing flaps, Fig. 7 (not shown), which are lifted into the housing by the sides of the bonnet when the latter is swung to the closed position. A blower (not shown) is provided in the housing to force collected gases to an exhaust port and the top of the bonnet and the front of the housing may be fitted with decorative panels.
Patent GB-379812-A (GB)
Title: Improvements in or relating to high frequency oscillation generators
IPC: H03B13/00
Filed: 1931-07-14
Abstract: 379,812. Cathode-ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Marconi House, Strand, London.- (Assignees of Terry, C. B. ; Rocky Point, Suffolk, Long Island, New York, U.S.A.) July 14, 1931, No. 20237. Convention date, July 31, 1930. [Classes 39 (i) and 40 (v).] In a cathode-ray oscillation generator having a double target electrode consisting of a central electrode 5 surrounded by an annular electrode 6 at a lower potential, the rays passing from the cathode 1 through an anode 2 to the central target electrode are deflected to the annular electrode by means such as deflecting electrodes 3, 4, the potentials across which depend on that of the electrode 5. The electrode 5 is connected through an impedance or resistance 18 to earth and the electrode 6 is maintained at a negative potential by a battery 26. The electrodes 3, 4 are connected across the impedance 18 through a tuning device 24, so that the potentials applied to them depend on the current passing in the circuit between the cathode and electrode 5. The frequency of the oscillations produced in an output circuit 32 connected across the impedance 18, is varied by varying the voltage applied to the anode 2. Oscillations of harmonic frequencies may be produced by adjusting the tuning device 24.
Patent GB-968175-A (GB)
Title: Improvements in water-tight joints for cables
IPC: H02G15/013
Filed: 1963-05-21
Abstract: 968,175. Enclosing cable joints. NORDDEUTSCHE KABELWERKE A.G. May 21, 1963 [May 22, 1962], No. 20241/63. Heading H2E. The watertight joint for a polyethylene. sheathed cable disclosed in Specification 939,989 is modified so that on tightening the clamping bush 6, 11 the softened end of the sheath is forced into annular grooves 16 in the metal sleeve 4 that surrounds the sheath, and the sleeve 4 is pinned at 17 to the heat shield 3.
Patent GB-419680-A (GB)
Title: Improvements in or relating to iron chromium alloys
IPC: C22C38/26
Filed: 1933-07-18
Abstract: Ductile steel alloys contain about 2-30 per cent of chromium, up to 0,5 per cent of carbon, and more than about 4 times as much niobium as carbon.  The preferable niobium content is between 8 times the carbon content and 8 times the carbon content plus 2 per cent.  The alloys preferably contain not more than about 1 per cent of manganese, 1 per cent of silicon, and 1 per cent of impurities. Steel alloys each containing chromium and one of the metals uranium, molybdenum, and tungsten instead of niobium are referred to by way of comparison.
Patent GB-1046561-A (GB)
Title: Improvements in or relating to processes for the production of melamine
Filed: 1963-05-21
Abstract: In the production of melamine from urea by the process of the parent Specification in which heat is supplied by passage of a current through molten urea, the conductivity of the melt is maintained by the presence therein of an acid, salt and/or anhydride.  Specified materials are ammonium chloride and phosphate.
Patent GB-358500-A (GB)
Title: Improvements in the production of artificial products by dry spinning
IPC: D01F2/30
Filed: 1930-07-04
Abstract: Cellulose esters; cellulose ethers.-Artificial filaments, threads, ribbons, films, &c., are produced by dry-spinning a solution of a cellulose ester or ether in a mixture comprising a volatile solvent and a high-boiling solvent into an evaporative medium charged with vapours of a non-solvent for the cellulose derivative.  The spinning solution may also contain a non-solvent p  for the cellulose derivative.  Suitable volatile substances and high-boiling solvents for making up the spinning solution are those described in Specification 312,203, [Class 2 (ii), Cellulose &c.]; further high-boiling solvents are diethyl phthalate, ethyl lactate, lactic acid, dioxane, and diethyl tartrate.  The amounts of high-boiling solvent and non-solvent and the general details of procedure are similar to those set forth in Specification 312,203.  The spinning may be such that the volatile constituents are substantially eliminated; the products containing higher boiling solvents may be further drawn out, e.g. by rollers running at different speeds with restricted stretch as described in Specification 342,712, if desired. In examples, (1) a spinning solution containing 27 parts of cellulose acetate dissolved in a mixture of 65 parts acetone and 8 parts ethyl lactate or diacetone alcohol is spun into a countercurrent of an evaporative medium maintained at 70-80 DEG  C. with a moisture content corresponding to saturation at 45-55 DEG  C.; (2) the same spinning solution is spun into air regulated to 22 cubic feet per minute and alcohol vapour is injected into the spinning cell, 6 to 8 inches from the nozzle, at a rate of 100-120 grams per minute; (3) a spinning solution made up with 25 parts cellulose acetate, 7 parts water, 8 parts ethyl lactate and 60 parts acetone, is spun as in (1) or (2); (4) the spinning solution is made up of cellulose acetate 25 parts, alcohol 18 parts, ethyl lactate or diacetone alcohol 7 parts, and is spun as in (1) or (2).  The filaments may be subjected to tension direct from the nozzle or the tension may be restricted as in Specification 342,712.  The invention is applicable to other cellulose esters such as cellulose formate, propionate or butyrate, and to ethers such as methyl, ethyl or benzyl cellulose. Specificatio 333,926, [Class 2 (ii), Cellulose &c.], also is referred to.
Patent GB-199624-A (GB)
Title: Improved hand tool for removing carbon deposit from pistons
IPC: B08B1/00
Filed: 1922-07-25
Abstract: 199,624. Briscoe, S. A. July 25, 1922. Scrapers. - A handtool for removing carbon deposit from the piston-ring channels of pistons of internalcombustion engines consists of a steel bar A of rectangular crosssection formed at its working end with a parallelsided longitudinal channel B, having a sloping floor. The end of the tool is tempered.
Patent GB-632250-A (GB)
Title: Improvements in pivot hinges for windows
IPC: E05D7/085
Filed: 1947-07-28
Abstract: 632,250. Hinges. SVARTVIKS AKTIEBOLAG. July 28, 1947, No. 20318. Convention date, May 12, 1943. [Class 65 (ii)] A hinge for a horizontally pivoting window is of the kind comprising an intermediate member 3 pivoted at 7 to the frame fitting 1 and formed with a slot 15 receiving a pin 6 on the window fitting 2, the arrangement being such that the window 17 can swing with the intermediate member into a ventilating position, determined by the engagement of the intermediate member with a stop 4 on the frame fitting, and thereafter, for cleaning purposes, substantially through 180 degrees on the pin 6. The hinge is characterised in that the slot 15 extends from the edge of the intermediate member and is engaged, between the closed and ventilating positions, by an abutment pin 5 on the window fitting. To exclude draught when the window is closed the intermediate member is provided with an edge flange 10, and wooden fillets are fitted to the frame and window respectively, the fillets abutting outwardly of the pivot 7 and forming a recess inwardly to permit the angular movement of the intermediate member.
Patent GB-1463459-A (GB)
IPC: C07C209/00
Filed: 1975-05-14
Abstract: 1463459 Aromatic diamines GOODYEAR TIRE & RUBBER CO 14 May 1975 [1 Nov 1974] 20366/75 Heading C2C Aromatic diamines are prepared by reacting (1) a primary amine R-NH 2  where R is C 1  to C 20  primary or secondary alkyl, C 7  to C 12  aralkyl, C 5  to C 8  cycloalkyl or R<SP>111</SP>R<SP>1111</SP>C 6 H 3  where C 6 H 3  is a trivalent radical derived from benzene by the removal of three hydrogen atoms and R<SP>111</SP> and R<SP>1111</SP> are each C 1  to C 20  primary or secondary alkyl, C 7  to C 12  aralkyl, C 5  to C 8  cycloalkyl, or C 1  to C 9  alkoxy, with (2) a a hydroquinone, resorcinol or catechol at 100 to 350 C. in the presence of an iron halide condensation catalyst, precipitating iron from the hot reaction mixture in the form of ferric hydroxide by the addition of calcium hydroxide and filtering the reaction mixture to remove the ferric hydroxide from the diamine product. Preferred amine starting materials are aniline, toluidines and xylidines.
Patent GB-724025-A (GB)
Title: Improvements in or relating to methods of constructing crankshafts, cranks, or the like, built up from a plurality of parts
IPC: F16C3/10
Filed: 1952-08-14
Abstract: 724,025. Securing cranks &c. in shafts. DORTMUND - HORDER HUTTENUNION AKT.-GES. Aug. 14, 1952 [Oct. 24, 1951], No. 20467/52. Class 80 (2) [Also in Group XXII]. Cranks I or other parts have bores of oval, triangular, square, hexagonal, sinuous or other non-circular section, shrunk on pins 5 of very nearly the same section (i.e. not necessarily a " sized " fit), to produce stresses which deform the parts to accurate fit, and are subsequently partly relieved by thermal annealing (as by inductive heating) to leave sufficient grip to prevent separation whilst being still not great enough to reduce service life either by combining with load stress or increasing notch sensitivity.
Patent GB-129203-A (GB)
Title: Improvements in or relating to Clutch Operating Mechanism.
Inventor: BAXENDALE WILLIAM DAVID JAMES
IPC: D05B69/16
Filed: 1918-12-10
Abstract: 129,203. Baxendale, W. D. J. Dec. 10, 1918. Sewing-machines; starting and stopping gear.- Clutches are operated by parts of the body adjacent the waist and elbow so that legless operators may have the free use of their hands. A padded block a secured to a cam rod b is adapted to be moved horizontally by the body of the operator to actuate one end of a lever e, connected at the other end to a rod i, which is pivoted at one end on the frame and is engaged at its middle by a fork k actuating a lever l controlling the clutch o, p. A knob secured on a rod h bearing on the lever e is arranged for engagement by the elbow.