baber/WOPTO huggingface dataset:
Patent GB-469022-A (GB)
Title: New fungicidal and bactericidal agents
IPC: C07F3/10
Filed: 1936-01-15
Abstract: Organo-mercury compounds of the formula R--[O--Alk]n--O--C2H2R<1>2--Hg--X in which R represents alkyl or aralkyl, R<1> signifies hydrogen, alkyl or aryl, n is 1 or 2, Alk stands for an alkylene residue and X represents hydroxyl or a salt-forming group, are prepared by reacting a mercuric salt, or mercuric oxide and a mercuric acid, with an olefinic compound C2H2R<1>2 in the presence of an ether-alcohol R--[O--Alk]n--OH containing no halogen.  The mercuric salt may be formed in situ from yellow mercuric oxide and an acid, and the residue X may be exchanged by double decomposition.  The products are useful as fungicidal and bactericidal agents and may be applied, either as dusts in admixture with carriers such as talc or in the form of aqueous solutions or dispersions.  Examples are given of the interaction of (1) ethyleneglycol monoethyl ether, ethylene, and mercury acetate; instead of the said ether, ethyleneglycol monomethyl or monobutyl ether or diethyleneglycol monoethyl ether may be used and yellow mercuric oxide may be employed in addition to mercuric acetate; treatment of the product with sodium chloride yields the corresponding mercury chloride compound; (2) ethyleneglycol monoethyl ether, ethylene, yellow mercuric oxide and glacial acetic acid; (3) ethyleneglycol monomethyl or monoethyl ether, propylene, mercuric acetate and yellow mercuric oxide; addition of brine forms the chloride of the product; (4) ethyleneglycol monobenzyl ether, ethylene, yellow mercuric oxide and glacial acetic acid; the product is treated with brine; (5) ethyleneglycol monoethyl ether, styrene and mercuric acetate, and reaction of the product with oxalic acid. Other olefines mentioned are butylene and phenylethylene, and as ether alcohols diethyleneglycol monomethyl ether and trimethyleneglycol monoethyl ether are also specified.  Reference is made to a dust composition for treating oats comprising 3 parts by weight of the organo-mercury compound, 3 parts of glycerine and 94 parts of talc.  Specifications 335,527, [Class 81 (i)], 411,507, and 427,974 are referred to.ALSO:Compositions for the immunization or preservation of seeds, bulbs, tubers, corns, &c. consist of organo-mercury compounds of the formula R-[O-Alk]n-O-C2H2R12-Hg-X in which R represents alkyl or aralkyl, R1 signifies hydrogen, alkyl or aryl, n is 1 or 2, Alk stands for an alkylene residue and X represents hydroxyl or a salt-forming group, together with an inert carrier such as talc, or comprise an aqueous solution or dispersion of the organo-mercury compound containing wetting and spreading agents.  Thus, a mixture of 3 parts by weight of organo-mercury compound, 3 parts of glycerine and 94 parts of talc may be used for the treatment of oat seed infected with leaf stripe.
Patent GB-663571-A (GB)
Title: Improvements in or relating to dynamoes for cycles and the like vehicles
IPC: B62J6/12
Filed: 1949-01-18
Abstract: 663,571. Machines with permanent magnets. SOC. D'ETUDES ET RECHERCHES DES APPLICATIONS MECHANIQUES ET ELECTRIQUES..Jan. 18, 1949, No. 1413/49. Class 35. A cycle hub dynamo has a permanent magnet rotor i carried by a support h rigidly fixed to the outer race g of a ball bearing f, the inner race a<SP>1</SP> of which forms part of a bushing a which is used as a fixed support for the assembly and its flanged part is arranged coaxially with the spindle of the hub band gripped between the fixed cone b<SP>1</SP> and the fork lug a by a nut e. The stator is supported by a casing a<SP>2</SP>. The rotating permanent magnet is formed of a number of similarly shaped sectors held together within a ring J rigid with the inturned peripheral flange of the support h.
Patent GB-792565-A (GB)
Title: An adaptor for connecting a gas cylinder to a pipe-line
IPC: F16L29/00
Filed: 1955-01-17
Abstract: 792,565. Pipe couplings. GES. FUR LINDE'S EISMASCHINEN AKT.-GES. ZWEIGNIEDERLASSUNG MASCHINENFABRIK SURTH. [formerly MASCHINENFABRIK SURTH ZWEIGNIEDERLASSUNG DER GES. FUR LINDE'S EISMASCHINEN AKT.-GES.]. Jan. 17, 1955 [Jan. 15, 1954], No. 1438/55. Class 99(1). An adaptor for connecting a gas cylinder to a pipe line comprises a main shut-off valve which opens against the action of a spring 1 by contact with a nipple in a pipe connected to that end of the device, and an auxiliary valve 8 which closes on initial flow of gas from a cylinder connected to the other end so that connection with the cylinder can be made under pressure-free conditions, slow leakage of gas subsequently causing the valve to open and establish communication with the pipe line while if an abnormally large flow of gas takes place the valve 8 closes. The main valve comprises a cone 12 recessed into a sleeve 2 slidable in a chamber 14 joined to a mouth 19 by a neck 4, the corner between the chamber and the neck forming the valve seat. A cap 3 grooved to permit passage of gas is fitted on the valve spindle and forms an abutment for the nipple on the pipe. The auxiliary valve comprises a ball which rests on an apertured seat and can rise into a guide 9 and then into engagement with a seat 5. The valve cone 12 may be made of a plastic such as polyamide, the other parts of the valve being made of metal.
Patent GB-1402352-A (GB)
Title: Electroacoustic transducers
Inventor: BRUNNERT O
IPC: H04R17/02
Filed: 1973-01-11
Abstract: 1402352 Audio transducers SIEMENS AG 11 Jan 1973 [18 Jan 1972] 1469/73 Heading H4J A sheet like piezoelectric or piezoresistive element is secured to a transducer diaphragm over a substantial area selected to compensate for a non-linear resonance/frequency characteristic of the diaphragm. In the telephone microphone shown, a rim clamped aluminium diaphragm 1 has secured to it a piezoelectric ceramic disc 2 having annular electrodes 3, 4 making the piezoelectric element effectively annular in shape. For economic reasons the diaphragm has a resonant frequency in the audio range with a mode of vibration including a single circular node. The electrodes are such that the node falls within the annulus. Thus when vibrating at this frequency that part of the piezoelectric element within the nodal circle is under compression while the remainder is under tension and vice versa. Thus in the region of this frequency the effects of different parts of the element cancel each other's effect and compensate for the resonance peak in the diaphragm's frequency characteristic.
Patent GB-626234-A (GB)
Title: Fire extinguishing apparatus employing carbon dioxide
IPC: A62C3/06
Filed: 1947-01-16
Abstract: 626,234. Fire-extinguishing. SPECIALTIES DEVELOPMENT CORPORATION. Jan. 16, 1947, No. 1520. Convention date, May 7, 1946. [Class 47 (ii)] Fires in open tanks &c. are extinguished by carbon dioxide gas and snow issuing in fanshaped sheets from discharge heads 11 secured at the top or other part of the tank. Each head comprises a body 20, 35 in which the mixture of gas and snow is produced by the expansion of jets of liquid issuing from radial orifices 30, and a deflector plate 41 which, with the lip 36 of the body, forms a narrow, fanshaped discharge orifice. An axial jet from an orifice 29 plays on the deflector plate to prevent accumulation of. snow thereon. A drainage aperture 38 is provided. Specification 621,922 is referred to.
Patent GB-596426-A (GB)
Title: Process for improving the useful qualities of wood charcoal and the products thereof
IPC: C10L9/10
Filed: 1940-01-26
Abstract: Wood charcoal impregnated at temperatures below 200 DEG C. with up to 150 per cent. of its weight of pitch, bitumens, or tars, e.g., petroleum pitch, and suitably with catalysts may be used for destructive hydrogeneration.
Patent GB-309637-A (GB)
Title: Improved means for sharpening circular knives
IPC: B24B3/46
Filed: 1928-01-18
Abstract: 309,637. Gandil, E. V. Jan. 18, 1928. Machine cutiers, grinding in situ. - A device for sharpening circular knives, for example, slicing machine knives, consists of two grinding- blocks 16<a>, 16<b>, loosely pivoted to levers 12<c>, 12<b> fulcrummed at 13 to arms 14 on a housing 1, which has an arm 2 for attachment to the slicing &c. machine frame. The levers are actuated to move the blocks up to, and away from the knife 17 by arms 9 on a stem 4 movable in the housing and pressed downwards by a spring 6, the stem being raised and lowered by a nut 7 screwing on the stem; pins 10 on the arms 9 engage in slots 11 in the levers 12a, 12<b> to press the blocks resiliently against the knife, which is rotated during sharpening. The Provisional Specification describes also a construction in which the spring tends to lift the stem and keep the blocks away from the knife.
Patent GB-606478-A (GB)
Title: Improvements in or relating to muzzle brakes and like reaction devices
IPC: F41A21/36
Filed: 1946-01-18
Abstract: 606,478. Muzzle brakes. GALLIOT, J. A. N. Jan. 18, 1946, No. 1793. [Class 92 ii)] [Also in Group XXVI] Relates to a gas reaction device having means for producing helicoidal motion of the gases flowing through a nozzle, as described in Specification 389,469, and provided with means for deflecting the gases rearwardly around the nozzle without loss of the helicoidal motion. According to the invention, means are provided for diverting the gases at an angle to the nozzle and discharging them in an evenlyflowing stream parallel to a radial plane of the device. In the form shown, a gun barrel 10 is fitted with a reaction device forming a muzzle brake 11 to the rear end of which a deflector 12 is connected by a flanged joint 13 with a frustoconical interior 14. The gases emerging from the muzzle brake with a helicoidal rotary motion imparted by helical-vanes 24 and helical webs 22 expand into the deflector through an annular space between the nozzle 23 of the brake and the forward end 16 of the deflector. The outlet 15 of the deflector is a triangular opening across which are arranged' vanes 21. The wall of the deflector 16, 17 is so shaped that the forward end 16 is of approximately circular cross-section while the rear portion 17, through which the barrel 10 passes, is of approximately paraboloidal cross-section reducing to the straight-line 18 forming the base of the triangular outlet 15. The wall 17 is connected by a stay 19 to a ring 20 fitting tightly on the barrel 10 and welded'to the edge 18 of the wall 17. Specifications 176,337, [Class 92 (ii)], 435,724, 440,022, 454,003 and 482,248 and U.S.A. Specification 2,224,260 also are referred to.
Patent GB-137389-A (GB)
Title: Rubber pads for securing to soles & heels of boots & shoes
IPC: A43C13/04
Filed: 1919-01-24
Abstract: 137,389. Phipps, W. H., and Hooper, W. T. Jan 24, 1919. Studs, externally-applied.- A number of pads of uniform shape are secured to the sole and heel, each pad being formed with recesses and being secured by nails or screws e, which, according to the Provisional Specification, pass through leather or other non-slipping insets d. The pads may be made from waste rubber, such as worn tyres, and the recesses in them are formed by mechanical means as described in Specification 133,808, [Class 31 (ii), Punching and perforating machines &c.]. Reference has been directed by the Comptroller to Specification 20473/03.
Patent GB-816587-A (GB)
Title: Improvements relating to electrolytic cells for the production of aluminium
Inventor: SCHMITT HANS
IPC: C25C3/16
Filed: 1957-01-17
Abstract: 816,587. Electric heating for the electrolytic production of aluminium. POUR L'INDUSTRIE L'ALUMINIUM S.A. Jan. 17, 1957, No. 1806/57. Class 39(3) [Also in Group XXXVI] An electrolytic cell for producing aluminium by fused salt electrolysis comprises an anode 2 connected by rods 3 to the 'current supply and supported above a pot 1 having a carbon lining 5 in which are embedded cathode bars which have beneath the anode 2 horizontal straight parts 13 which, while lying mainly within, do not protrude more than 0.5 metre beyond the horizontal projection of the anode 2 on the bottom of the pot. Parts 15 of the bars, which extend out of the cell from the parts 13, lie below the parts 13 and are connected to bus bars 9 the upper edges of which are at a level not higher than the bottom of the pot and not lower than 2 metres beneath the bottom of the pot, the bus bars 9 being outside the cell and parallel to its longitudinal axis. As shown, each part 13 is joined by a vertical bar 14 to the parts 15. In a modification, the part corresponding to 13 extends the whole width of the anode 2 and is joined by three vertical bars corresponding to 14 to a continuous horizontal bar which extends between the bus bars 9. In another modification, the parts corresponding to 13, 15, form part of a single bar extending between the bus bars 9, the bar being kinked in two places to raise the central portion above the end portions, and in a further modification, the central portion, corresponding to 13, rests at each end on a portion corresponding to 15, to which it is welded. The carbon 5 comprises prebaked carbon blocks; the side walls of the pot 1 being lined with a layer 6 of rammed carbonaceous material baked in situ.
Patent GB-1370361-A (GB)
Title: Battery charging apparatus
IPC: H02J7/00
Filed: 1971-01-14
Abstract: 1370361 Battery charging systems ELECTRIC POWER STORAGE Ltd 13 Jan 1972 [14 Jan 1971] 1823/71 Heading H2H Battery charging apparatus as disclosed in Fig. 2 of Specification 1,233,186 is modified so that the timer runs at the same speed in either direction but in one direction the start of the timer is delayed from the beginning of the opencircuit interval. The timer is driven by a selfstarting, reversible, constant speed synchronous motor, the starting of which is controlled by a relay 10 energizable from D.C. supply terminals 8, 9 by way of a thyristor 11. The firing of the thyristor 11 is dependent upon the time taken to charge a capacitor 15 to a potential sufficient to fire a unijunction transistor 12 so as to produce a gating pulse for the thyristor. The capacitor 15 is charged at constant current by way of a network including a transistor 16 having resistors 17, 18 connected to its emitter, the resistor 17 having connected in parallel therewith a rheostat mechanically driven by the timer motor, the rheostat having a resistance which starts at zero and increases as the timer motor runs forward during an "odd" open-circuit interval. Thus the rate of charge of the capacitor 15 during the ensuing "even" open-circuit interval will depend upon the duration of the previous "odd" open-circuit interval and thus the start of the timer motor in the reverse direction will be correspondingly delayed. A switch 21 in the D.C. supply circuit is arranged to close at the beginning of each "even" open-circuit interval and to open whenever the motor driven rheostat returns to its zero resistance position.
Patent GB-548044-A (GB)
Title: Variable speed transmission mechanism
IPC: F16H47/08
Filed: 1941-02-12
Abstract: 548,044. Hydraulic couplings. CLEVELAND, F. J. (Windfields, Ltd.). Feb. 12, 1941, No. 1944. [Class 69 (ii)] [Also in Group XXIV] A variable speed gear which is automatic according to speed and torque embodies a fluid coupling of the F÷ttinger type and epicyclic gearing. As shown, the driving element of the fluid coupling is formed in a flywheel 1 on the driving shaft A. The coupling has two runners 2, 3. Runner 2 is connected by an overrunning clutch 4 to a shaft B. Runner 3 is connected to a sleeve D. The latter and shaft B have sun gears F, G, meshing with gears E2, E<SP>1</SP>, of compound planetary pinions E mounted in a carrier 11. A third gear E3 of the pinions E meshes with a sun H on a sleeve N integral with a spider 30. The carrier 11 is connected to a brake drum 10 by an over-running clutch 9. The driven shaft C is integral with a reverse planet carrier 23 having planet pinions I meshing with a sun gear K on the carrier 11 and a'toothed annulus J fixed to a brake drum 24. Between an extension 15 of the carrier 23 and the carrier 11 is a friction clutch having clutch plates 20, pressure plate 18 and an adjustable back plate 19 acted upon by springs 37. Adjustable retractor springs act on the pressure plate 18. Pivoted at 21 to the extension 15 are weighted levers 16, Fig. 2, and ends M of the spider 30 engage between bushings 34 carried in bores in the levers 16 adjacent the pivots 21. The levers 16 have slots 16<SP>1</SP> in which are fitted toggles 17 one arm of which acts on the pressure plate 18 and the other on the extension 15. In operation with both brake bands 32, 33, released, the gearing is in neutral. For forward driving band 32 is tightened which holds the carrier 11 through clutch 9. As the prime mover is speeded up the runner 2 is rotated and the shaft C is driven at low speed therefrom through clutch 4, gears G, El, E3, and members 30, M, 16, 21 and 23. Continued acceleration of the prime mover causes the second runner 3 to rotate at the same speed as the runner 2 and the drive is then from the sun F, the clutch 4 over-running. This gives the second speed ratio. As the speed increases the weighted levers 16 move outwardly against the torque at the spider 30 and the friction clutch is engaged by the toggles 17 straighteriing. A direct drive thus results. For reverse driving band 32 is released and band 33 is tightened. The carrier 11 thus revolves backwards around the sun H and the drive to the shaft C takes place through the sun K and planet carrier 23.
Patent GB-1206031-A (GB)
Title: Method of and apparatus for producing substantially homogeneous quantities of microscopic gas bubbles
Inventor: MCMANUS DONALD STACY
IPC: C02F3/20
Filed: 1968-01-12
Abstract: 1,206,031. Aerating liquid. GENERAL DYNAMICS CORP. 12 Jan., 1968, No. 1992/ 68. Heading B1C. A method of producing uniform gas bubbles of microscopic size (i.e. up to 10 microns) in a liquid comprises supplying the gas to a porous layer 10' having outlets 20 of smaller diameter than the desired bubbles, and establishing over it a flow of liquid at a sufficiently high velocity to create a turbulent boundary layer 14 having a laminar sub-layer 13 adjoining the surface and having a thickness less than 10 microns, whereby the bubbles are detached from the surface when they begin to be large enough to project into the turbulent layer. An apparatus comprises a cylindrical hollow sparger 35 within a coaxial housing 34, forming between them an annular passage for liquid which tapers outwardly in the downstream direction. There are longitudinal guide vanes 45 in the passage. The sparger can be axially adjusted by a hand wheel 42 so that its conical tail 36 forms with the convergant housing wall 34a a flow restrictor 51 which can be adjusted to secure the desired liquid flow rate.
Patent GB-113146-A (GB)
Title: Improvements in or relating to Castors for Furniture.
Inventor: WARING JOSEPH
IPC: B60B33/08
Filed: 1917-02-10
Abstract: 113,146. Waring, J. Feb. 10, 1917. Castors.-In a ball-castor, three loose bearing-balls b, without a retainer, are interposed between the principal ball B and the face F of the socket CS. According to the Provisional Specification the balls b, which may be three or more in number, may be loose, or enclosed in an annular cage, and the ball B may he held in position by spinning the lower edge of the socket, or by using a screwed ring. Reference has been directed by the Comptroller to Specifications 20097/91 and 3507/96,
Patent GB-1181202-A (GB)
Title: A Process for Separating SiCl4 and SiHCl3 from Gas Mixtures with Hydrogen
IPC: C01B33/107
Filed: 1968-01-15
Abstract: 1,181,202. Purifying chlorosilanes. DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT. 15 Jan., 1968 [18 Jan., 1967], No. 2118/68. Heading B1L. Silicon tetrachloride and silicochloroform are separated from mixtures thereof with hydrogen by (a) cooling the gaseous mixture to 15 to -25‹C., preferably 0 to -15‹C. at normal pressure, or at pressure up to 1 atmos. gauge so as to condense and thus separate a portion of the silicon chlorides, (b) absorbing the residual silicon chlorides by adiabatic treatment, suitably at 40 to -30‹C., and preferably at 10 to -20‹C., with an inert organic or inorganic solvent in countercurrent, and (c) recovering the chlorides from solution by rectification and recycling the solvent. The mixture entering the process is suitably cooled in cocurrent flow with effluent condensate from stage (a). Suitable solvents for use in stage (b) having boiling points in the range 110-250‹C., preferably 130-180‹C., include chlorosiloxanes and aromatic petroleum fractions such as those comprising xylene, trimethylbenzene and tetramethylbenzene.
Patent GB-524085-A (GB)
Title: Improvements in or relating to pressure gauges
IPC: G01L7/00
Filed: 1939-01-21
Abstract: 524,085. Pressure gauges. JAGER, B. M. Jan. 21, 1939, No. 2121. [Class 106 (ii)] One of a pair of chambers is connected to the source of pressure to be measured and the other to the said source or to the first chamber through a valve which opens solely at a predetermined pressure difference between the two chambers electrically operated means subject to this pressure difference operating a visible or audible signal. A diaphragm 13 divides the casing 12 into two chambers or compartments 14, 15. Pressure fluid is admitted to chamber 14 at 16. The diaphragm 13 carries a contact arm 17 and a pair of contacts 18, 19 adapted to engage contacts 20, 21 carried by resilient arms 22, 23 leading to terminals 24, 25. The arm 17 is connected to a terminal 27. These terminals are in circuit with a battery, condenser, and a pair of lamps a green one for terminal 24 and red for 25, the terminal 27 being a return. The part of arm 17 on the other side of the diaphragm slides on a guide 28 and has a recess formed by two inclined walls between which rests a roller 29 carried by a push rod 30, the upper end of which carries a valve 31 spring loaded at 32. The end of the rod 30 enters a blind hole in the valve a light spring 60 is located between the valve and a collar on the rod. A guiding link 30a is fitted as shown. Upon a rise in pressure, the diaphragm moves to the right, contact is made at 18, 20 and a green light shows. The displacement of the diaphragm to the right causes the rod 30 to open the valve and after a short lag the pressure is equalized and the lamp extinguished. On a fall in pressure the red lamp is lit and after a lag extinguished. This intermittent action of the lights causes the operator to bring the. pressureto its required level. In a modification in which the two chambers are separated by a rigid partition, a variation in pressure in one chamber is effective on a mercury bath which either operates the valve or in effect constitutes the relief valve below the chambers.
Patent GB-1025231-A (GB)
Title: Improvements in concrete reinforcement and shuttering
IPC: E04B2/86
Filed: 1962-01-19
Abstract: 1,025,231. Securing slabs. J. P. WOOD. Jan. 17, 1963 [Jan. 19, 1962], No. 2134/62. Heading E1B. In a reinforced concrete structure facing members 18, 19 are erected on both sides of the reinforcement 10, 11, 12, 13 and are secured thereto by anchoring means 20 having tongue and groove connection with the facing members, the space between the facing members being filled with concrete. The connections between the facing members and the anchoring means may be of dovetail or T-slot form either by slots or ribs in the members. The anchoring means 32, Fig. 4, has a slot 34 to engage a horizontal reinforcement 12 and a tongue 35 bent to engage a vertical reinforcement 13 and hold the bar 12 in the slot 34. The anchoring means may be double-ended to act as a tie between the two sets 10, 11 and 12, 13 of the reinforcement or a separate tie 14 slotted over the bars 10, 12 and bent round bars 11, 13 may be used. The reinforcement may be supported by tubular scaffolding 15 left in situ or protected by cardboard tubes 16, with notched flanges or clips 17 to engage the rods 10, 12, for subsequent withdrawal.