baber/WOPTO huggingface dataset:
Patent GB-870720-A (GB)
Title: Improvements in carbon black manufacture
IPC: C09C1/50
Filed: 1959-06-04
Abstract: <PICT:0870720/III/1> Furnace black is produced by injecting a liquid make upwards into a furnace 1 from a cluster of at least four spray nozzles 9, air for partial combustion being supplied through ports 5. There are at least four nozzles 9 and there may be as many as 18 or more. Each nozzle may have an angle of spread of 30 degrees.  The make may be injected into the furnace together with steam and may be preheated thereby.  The upward gas velocity in the furnace may be 1-6 ft./sec.  The temperature in the furnace may be 2300 DEG F. or higher.  The make may be creosote or fuel oil.  The yield of black may be as high as about 600 lbs./hr.  The oil absorption of the black may be as low as 8 gals./100 lb.  Examples are given. Specification 763,159 is referred to.
Patent GB-283867-A (GB)
Title: Process and device for washing bottles by spraying or jetting
IPC: B08B9/44
Filed: 1927-07-19
Abstract: 283,867. Holstein & Kappert Maschinenfabrik Ph÷nix Ges. Jan. 18, 1927, [Convention date]. Bathes, washing.-An intermittently-rotated table a provided with bottle carriers b and located above spraying nozzles adapted to register with inverted bottle on the carriers, is arranged to receive bottles fed mechanically and to deliver the sprayed bottles to a mechanicallyoperated bottle-removing device. The carriers b are slidably mounted in radial guides on the table a and are adapted to be moved in turn into the top guide of an intermittently rotated drum c which, as shown, has eight guides for holding bottle carriers. The number of carriers on the machine is one fewer than the number of guides provided on the table and drum. The drum is associated with a bottle feeding device d and a bottle-dedivery device, and the arrangement is such that bottles are fed into the drum at station C, exchanged for sprayed bottles at station B, and the sprayed bottles are delivered at station D. The means for moving the bottle carriers from the table a to the drum c and vice versa comprise a reciprocating rod 10 provided with a hooked end 11 whereby it may be detachably coupled with the bottle carriers. The feeding device comprises a table 13 up which bottles are fed by bars 14 connecting endless chains 15. The delivery device comprises an oscillating support adapted to receive the bottles from the drum c and to be raised to a position adjacent to a conveyer f, the bottles being pushed from the support by means of a reciprocating rod 24. The bottle holders, instead of being arranged in radial rows on the table a, may be arranged tangentially.
Patent GB-1045410-A (GB)
Title: Cyclone dust separators
IPC: B01D/
Filed: 1965-05-06
Abstract: In a cyclone dust separator leaving an axial or tangential inlet for dust-laden gases and an axial clean gas outlet tube, the ratio of the mean radius of the dust-laden gas inlet opening to the internal radius of the clean gas outlet tube is not more than 1.6; the length of an imaginary cylinder extending inside the cyclone from the inlet of the clean gas tube to meet a conical wall portion of the cyclone is at least eight times the radius of the cylinder; and the ratio of the radius of the dust outlet opening to the mean radius of the dust-laden gas inlet opening is within the range of 0.07 to 0.4.  A multi-cell separator consisting of three cyclones is shown and is as described with reference to Fig. 5 of patent Specification 1,017,417. Formulae are given.
Patent GB-810182-A (GB)
Title: Improvements in or relating to electrical remote control circuits
IPC: H02P1/54
Filed: 1957-06-18
Abstract: 810,182. Control of several motors; protective cut-out arrangements. SIEMENS SCHUCKERT (GREAT BRITAIN) Ltd., and DIXON, B. J. June 18, 1957, No. 19211/57. Classes 38 (3) and 38 (5). Electric motors M1-M4 are adapted to be started in sequence and are controlled from gateend boxes G1-G4 which contain main relays C1-C4 supplied from transformers W1-W4 through limiting resistors R1-R4. Pilot circuits extend from the gate-end boxes to a single control station D including pilot relays J1-J4 for each of the main relays. A " start " pushbutton 2 has a bar 1 engaging spindles S1-S4 which, in turn, engage the armatures of the four pilot relays, so that actuation of the pushbutton initially closes contacts E1-E4 and F1-F4 followed by the opening of contacts L1-L4 and the closure of contacts H1-H4. When the push-button is released, the spindles S1-S4 return to their starting positions with a controllable delay, the contacts LI, H1, being closed together for a short period, and the other pairs of like contacts are thereafter also closed together in sequence. A circuit is first completed through rectifier K1, contacts E2, F1, and the relays J1, C1, the current in this circuit being insufficient to operate either relay. The opening of contacts L1 breaks this circuit, but the delayed return of the spindle recloses these contacts and a circuit is completed through contacts H1 for the relay C1, the current in this circuit being sufficient to operate the main relay and start motor M1. The re-opening of contacts H1 breaks the second circuit and the first circuit is re-established to hold both the pilot and the main relays. All the pilot circuits are broken and all the motors are stopped when a pushbutton is actuated to open contacts N1-N4. If any of the pilot relays are opened by an overload or an earth fault, the main relay associated with that pilot relay will be released, and the remaining main relays will be released in succession. Thus, since contacts E2 are included in the holding circuit for relays C1, J1, the relay C1 will open if the pilot relay J2 is released. If the cable-cores X1, and the earth-screened cores Y1, for example, become short-circuited, only alternating current passes through the coil of the associated main relay so that the motor M1 is not improperly started under these conditions. Test meters T1-T4 of the directcurrent type are connected through buttons Q1-Q4 across contacts of the pilot relays. No reading is obtained on the meter T1 if there are earth faults in the pilot cores P1, X1 or Y1. The circuit may be modified so that sequential starting of the motors is provided without the feature that all the motors are stopped if any one stops.
Patent GB-165810-A (GB)
Title: Improvements in or relating to parachute launching devices
IPC: B64D17/52
Filed: 1918-11-22
Abstract: 165,810. Calthrop, E. R., and Schollar, P. W. Nov. 22, 1918. Parachutes.-In a parachute of the kind described in Specification 21312/14, an annular member is utilized instead of a disc to hold the fabric sufficiently open when launching to ensure its proper expansion. A method for lacing together the two parts of the container, and for attaching the rigging- tapes are also described. When the load is thrown upon the centre fitting 5, which may be as described in Specification 116,534, the lower part 2 of the container is pulled away from the upper part 1, and the rigging tapes 4 then pay out until they pull upon the edge of the parachute fabric 3. The ring 6 then falls, maintaining a sufficiently open mouth to entrap air and ensure the proper expansion of the whole. Successive folds of the fabric are drawn over the ring until finally the parachute breaks away and falls freely. The ring 6 may be secured within a hem in the fabric. In a modification, the parachute is released from the case by the rupture of light threads when the rigging is only partially paid out, this operation being completed gradually while falling. The upper part 1 of the parachute case is laced to the lower part by a fragile cord, or, as shown in Fig. 4, such a cord 14, carried by the upper part 1 is threaded through wire loops 16 carried by tabs 15 on the lower part of the case. The tapes 4 may be secured to the central fitting by providing them with terminal loops 20 which are threaded upon a split ring 19, after which the latter is clamped between discs 17, 18 which are grooved to receive it, and slotted to space the loops 20. Movement of the ring is prevented by a stop pin.
Patent GB-873549-A (GB)
Title: Means for compressing the frequency bandwidth of speech signals
Inventor: MCLEAN DONALD JAMES
IPC: H04B1/66
Filed: 1956-06-21
Abstract: 873,549. Band-width reduction. AVIATION, MINISTER OF. Sept. 23, 1957 [June 21, 1956], No. 19265/56. Class 40 (4). In a band-width reduction system in which only selected sub-bands of a speech band are transmitted at least two of the sub-bands are applied to the same modulator which is also fed by a modulation frequency rich in harmonics in such a manner that its output produces modulation bands which are closer together than the original bands. As shown, filters F1 . . . F3 select bands of 400-600 c.p.s., 1400-1600 c.p.s. and 2400-2600 c.p.s. which are combined and fed to modulator D which is fed with pulses having a repetition rate of 1200 p.s. (so that the modulation takes on the nature of a sampling operation). The 400- 600 c.p.s. modulates the D.C. component of the pulses to produce a 400-600 c.p.s. output. The 1400-1600 c.p.s. modulates the fundamental frequency of 1200 c.p.s. to produce a 200-400 c.p.s. output. And the 2400- 2600 c.p.s. modulates the 2400 c.p.s. harmonic to produce a 0-200 c.p.s. output. The modulator output feeds a 0-600 c.p.s. filter which excludes all other side-bands, and its output is transmitted. At the receiver the converse process restores the sub-bands to their proper position, Fig. 2 (not shown). In a second embodiment in which a pulse repetition frequency of 1600 c.p.s. is used the speech bands transmitted are 300-600 c.p.s., 1320-1580 c.p.s. and 2220-2580 c.p.s. and a 0-800 c.p.s. output filter is used. As before the 300-600 c.p.s. modulates the D.C. component to produce a 300-600 c.p.s. output. The 1320-1580 c.p.s. modulates the 1600 c.p.s. to produce 280-20 c.p.s. and of the final band 2220-2400 c.p.s. modulates the 1600 c.p.s. to produce 620-800 c.p.s. and 2400-2520 c.p.s. modulates the 3200 c.p.s. harmonic to produce 800-620 c.p.s. Demodulation takes place in the reverse manner. Since, however, the range 620-800 c.p.s. now contains two side bands the corresponding range 2220-2580 c.p.s. on demodulation contains unwanted components. It is stated, however, that the distortion so introduced is tolerable. It is further shown that output filters passing ranges of not only 0-800 c.p.s. but also 800-1580 c.p.s. and 1620-2400 c.p.s. could be used, these ranges containing side-bands corresponding to all the original side-bands, so that three speech channels each using a different one of these ranges could be combined in a frequency division multiplex system. Instead of modulating the D.C. of the pulse train to produce one of the side-bands the corresponding sub-band may be made to by-pass the modulator.
Patent GB-793499-A (GB)
Title: Liquid-spring
IPC: F16F5/00
Filed: 1956-06-21
Abstract: 793,499. Liquid springs. TUGWOOD, J. R. (Wales-Strippit Corporation). June 21, 1956, No. 19278/56. Class 108(3) A liquid spring comprises a container 10 filled with a compressible liquid and open at both ends in which respective pistons 20, 40, having different areas, are reciprocable, the pistons being connected together, guard means 70 being secured to the container 10 to prevent direct application of an outside force to one of the piston components. As shown, the container 10 comprises a screw-threaded portion 72 on which is mounted with provision for axial adjustment, a sleeve 70 having a base 74. A projecting stem 42 of the piston 40 is normally spaced from the base 74, but on the occurrence of extreme deflection due to the load A, the stem 42 engages the base 74 and the liquid in the container 10 is pressurized by the full cross-sectional area of the piston 20. The connection between the pistons 20, 42, comprises a cable 50. The pistons 20, 40, slide in respective plastics sleeves 18, 38. In a modification in which there is no differential action (Fig. 3, not shown) the load A acts upon the stem 42 of the piston 40, and the sleeve 70 is mounted on the other end of the container, and is in engagement with the base B.
Patent GB-1577044-A (GB)
Title: Check valve assembly
IPC: E03C1/10
Filed: 1977-03-11
Abstract: A backflow prevention assembly designed for connection between a main supply line and a service pipe in water supply service, comprising two check valves in series and a relief valve for draining the chamber between the two check valves under certain operating conditions.
Patent GB-1490155-A (GB)
Title: Device for introducing a material from a first space to a second space against a back pressure
IPC: F04D23/00
Filed: 1975-05-08
Abstract: 1490155 Valves B P DUCH 8 May 1975 [15 May 1974 6 May 1975] 19491/75 Heading F2V [Also in Division B8] Material is conveyed from a low pressure zone to a high pressure zone by a device comprising a hollow rotor the inside of which is at the low pressure and is supplied with material which on rotation of the rotor opens a peripheral slot in the rotor to discharge the material into a stator at the high pressure. As shown, the rotor has rigid walls 4, 5 and a resilient wall 3 abutting the walls. Gas under pressure enters the rotor at 13 to fluidize material within the rotor so that as the rotor rotates the material pushes the wall 3 away from the wall 5. In a second embodiment (Fig. 2), the rotor has two opposed cups, one of which is resiliently biased towards the other but which can be moved apart to form the outlet slot.
Patent GB-779052-A (GB)
Title: Esters and a process for their production
Filed: 1953-07-14
Abstract: The invention comprises polyesters produced by esterifying tricyclodecane-dicarboxylic acid and tricyclodecane-dimethylol with each other or with other polyhydric alcohols and dicarboxylic acids respectively.  Suitable polyhydric alcohols are, for example, glycol and glycerol and suitable dicarboxylic acids are phthalic acid and adipic acid.  The esterification is carried out by boiling the reactants under reflux in the presence of an esterification catalyst such as p-toluene sulphonic acid. The production of the polymer is preferably carried out at reduced pressure in the absence of oxygen. In the examples, polyesters are obtained by esterifying (a) tricyclodecane-dicarboxylic acid with ethylene glycol; (b) tricyclodecane-dicarboxylic acid with glycerol; (c) tricyclodecane-dicarboxylic acid with tricyclodecane-dimethylol; (d) tricyclodecane-dimethylol with phthalic anhydride; and (e) tricyclodecane-dimethylol with adipic acid.ALSO:The invention comprises esters produced by esterifying tricyclodecane-dicarboxylic acid or tricyclodecane-dimethylol with an alcohol or a carboxylic acid respectively.  The esterification is carried out by boiling the esterification mixture comprising tricyclodecane-dicarboxylic acid and an alcohol or tricyclodecane-dimethylol and an acid under reflux in the presence of an esterification catalyst, preferably p-toluene sulphonic acid.  The alcohol or acid is preferably present in a quantity which is at least sufficient for the complete esterification of the tricyclodecanedicarboxylic acid or tricyclodecane-dimethylol respectively.  In the examples: (a) tricyclodecane-dimethylol is heated with glacial acetic acid in the presence of p-toluene-sulphonic acid to give the tricyclodecane-dimethylol-diacetic acid ester; (b) tricyclodecane-dimethylol is reacted similarly with n-butyric acid to give the dibutyrate; (c) tricyclodecane-dimethylol is reacted similarly with stearic acid to give the distearate; (d) tricyclodecane-dimethylol is reacted similarly with a C15 branched fatty acid to give the corresponding di-ester; (e) tricyclodecane-dicarboxylic acid is reacted with methyl alcohol to give the dimethyl ester; (f) tricyclodecane-dicarboxylic acid is reacted with ethyl alcohol to give the diethyl ester; (g) tricyclodecane-dicarboxylic acid is reacted with n-butyl alcohol to give the di-butyl ester and (h) tricyclodecane dicarboxylic acid is reacted with n-hexyl alcohol to give the di-hexyl ester. The preparation of tricyclodecane-dimethylol-divalerate is also given.
Patent GB-335275-A (GB)
Title: Improvements in and relating to burners for pulverized fuel
IPC: F23D1/00
Filed: 1929-06-25
Abstract: 335,275. Blythe, G. E. K. June 25, 1929. Pulverulent-fuel burners. -A pulverized fuel burner comprises a casing c having a substantially rectangular flame nozzle h, primary air and fuel conduit a substantially rectangular and of constant area in cross-section - delivering a fan-shaped stream of air and fuel and a dispersing or mixing device d in the form of a grid arranged in the path of the fuel and air mixture and streams of secondary air admitted through valve-controlled openings in the sides and front end of the casing c. The conduit a is of varying width and height in crosssection to facilitate mixing of the air and fuel. The disperser d comprises vanes e connected by webs f and provided with ribs g which are arranged opposite the spaces between the webs f. Rods d<1> are provided for adjusting the position of the disperser d.
Patent GB-147631-A (GB)
Title: Improvements in tools
IPC: B23B51/02
Filed: 1920-07-08
Abstract: 147,631. Gerdil, H. P. July 16, 1919, [Convention date]. Drills having bearing-surfaces of reduced area as described in Specification 133,942 are provided with special forms and arrangements of such surfaces on their conical end faces. Special constructions of bearing-ribs are described having square, rounded, or obtuse or acute angled corners ; or the ribs may be triangular in shape. One cutting-edge 11, Fig. 1, is employed and the coned end is provided with two ribs 12 protruding less than the cutting-edge. The Specification as open to inspection under Sect. 91 (3) (a) describes also a modification in which the bearing-ribs are replaced by a small conical point 14, Fig. 3 (Cancelled), backed off at the same angle as the cutting-edge 13. In a further modification the relief of the cutting-edge decreases from a maximum at the periphery to nothing at the centre. Milling-cutters.-In the case of a mortising-cutter having six teeth, two-thirds of the length of each cutting edge is ground away to form the ribs, the operative portions being successively staggered. Milling-cutters may be similarly formed. Either the tool or the work may be driven, or both may move simultaneously. This subject-matter does not appear in the Specification as accepted.
Patent GB-155525-A (GB)
Title: Improvements in propellers for aeroplanes and the like
IPC: B64C11/26
Filed: 1920-07-08
Abstract: 155,525. Metropolitan - Vickers Etectrical Co., (Westinghouse Electric & Manufacturing Co.). July 8, 1920. Screw propellers.-In propellers made from superimposed layers 2 of fibrous material impregnated with a hardened binder, such as a phenolic condensation product, the leading edge 4 is stiffened by wires 3 placed between the layers prior to moulding. A second group may be placed between the leading edge, centre of pressure, and rear face 5. The wires may be cased in fabric which is impregnated with the binder before being inserted. By this construction, the leading portion of the blade is rigid whilst the rear portion is slightly flexible.
Patent GB-596710-A (GB)
Title: Improved machine for vaporising and distributing insecticidal preparations
IPC: A01M13/00
Filed: 1945-07-31
Abstract: 596,710. Pest-destroying apparatus. CAMPBELL, R. D., CAMPBELL, J. D., and CAMPBELL, H. July 31, 1945, No. 19648. [Class 81 (i)] An apparatus for destroying insect or other pests by discharging toxic vapours or smokes among crops under a covering sheet or apron, includes a vaporising or dispersing device comprising a casing a, a removable container f, supported therein, having an open top and perforated bottom h and adapted to receive charges of insecticide or pest-destroying agent and a material adapted to burn slowly and generate sufficient heat to vaporize the insecticide without causing undue decomposition thereof, bellows n, or air pump or fan for supplying air under the container through a pipe i provided with a light sheet metal flap valve j, one or more nozzles m, opening out of the casing, a duct k in the casing leading from near the top of the container to the nozzle or nozzles, and a cover b for the casing. The device may be mounted as a wheeled chassis and the bellows &c. driven by an axle or wheel thereof. A suitable combustible material is a corrugated paper roll impregnated with saltpetre, and suitable insecticides include nicotine, D.D.T., and benzene hexachloride.
Patent GB-298300-A (GB)
Title: Process and device for the preparation of stamped sheets or plates, especially gramophone plates
IPC: B29D17/00
Filed: 1927-07-25
Abstract: 298,300. Glaue, H. July 25, 1927. Moulding phonograph records.-In the preparation of stamped sheets and plates such as gramophone plates, a base in the form of a band of paper or like non-woven material is combined with an upper band, also of non-woven material, which is coated with a mass adapted to harden and is intermittently passed into a press and stamped so as to imprint the records and combine the two bands in a single operation. In the illustrated form a mass-carrier band of blotting- paper or like material is used and the superposed base band and impregnated band are unwound from rollers 42, 43 respectively and fed intermittently through the toggle-press 3. The, table 8 of the press is raised relatively to the electrically-heated die 5 to apply the pressure by means of the toggle 9-10 operated through cam and spur gear from the driving- shaft 13. The intermittent feed is obtained by means of nipping-rollers 19, 20 released in timed. relation with the shaft 13 by the linkage 38, 37, 21, and moved laterally while gripping the bands, through the medium of the linkage 22, 24 operated by the eccentric mechanism 25, 29. The holes 26 and screw-mechanism 35, 36 provide coarse and fine adjustments for the length of the feed stroke. The finished band is wound up on a roller 48 for drying and storage, and is afterwards taken from store to be cut into separate plates or records.
Patent GB-895088-A (GB)
Title: Improvements in and relating to the production of epsilon-caprolactam
Filed: 1960-06-03
Abstract: e -Caprolactams of formula <FORM:0895088/IV (b)/1> where R represents hydrogen or an alkyl group containing 1 to 6 carbon atoms, are prepared by heating the corresponding e -caprolactone with an aqueous solution containing a compound R-NH2, in a temperature range Tc to Tc+ 100 DEG C. where Tc is the critical temperature of water, at a pressure above the critical pressure of water.  The reaction may be batchwise or continuous and the product is extracted with chloroform. Examples describe the preparation of e -caprolactam and the n-butyl and methyl caprolactams.
Patent GB-907244-A (GB)
Title: Improvements in launching racks for flying bodies
IPC: F41F3/052
Filed: 1960-06-03
Abstract: 907,244. Launching missiles from aircraft and other craft or vehicles. BOLKOW, L., [trading as BOLKOW ENTWICKLUNGEN KOMM.- GES.]. June 3, 1960 [June 9, 1959], No. 19781/60. Classes 9 (2) and 92. A self-propelled missile having a body 6 equipped with fins 7 and a nozzle 8 is held on the launching frame by means of a sleeve 9 and a pin 10 at the end of a bracket 11. The sleeve 9 receives a pin 12 extending from the frame member 16 and the pin 10 engages a sleeve 14 mounted in the member 16, where it is secured by the resilient end of a latch 13. Latch 13 is pivoted on a two-armed lever 18, which is mounted on a pin 19 between plates 17, the latch 13 and lever 18 together forming a toggle which locks the pin 10. When the propellant begins to burn the gases impinging on the surface 21 of lever 18 cause the lever to turn and break the toggle joint, so that the pin 10 is released and the rocket moves forward from the launcher.