baber/WOPTO huggingface dataset:
Patent GB-187421-A (GB)
Title: Improvements in or connected with feeler mechanism for looms provided with automatic weft-replenishing mechanism
IPC: D03D45/20
Filed: 1921-09-13
Abstract: 187,421. British Northrop Loom Co., Ltd., (Northrop Loom Co.). Sept. 13, 1921. Shuttles, changing bobbins in, automatically; weft-feeler arrangements.-The bobbin-replenishment is effected by a transferrer 13, Figs. 3 and 5, under the control of feeler-mechanism at the replenishing side of the loom, at the beatup on which substantial exhaustion of weft is indicated by the feeler mechanism, the feeler 23, Figs. 1, 3, and 5, being withdrawn from the shuttle box before the transfer is effected, as shown in Fig. 5. The transferrer-dog 17 pivoted to the transferrer-arm 15 is normally retained by a spring 21 in the path of the lay-bunter 20, so as to be operated thereby to effect bobbin-transfer, but during a detecting beat of the lay can be moved downwards out of the path of the bunter 20 by a campart or shoe 26 on a spring-controlled pivoted feeler-carrier 24, to which is pivoted a spring-controlled guide 33 provided with an adjustable feeler 23. If the weft is present in sufficient quantity in the shuttle, it moves the feeler frontwards and rocks the carrier 24, which moves the dog out of the path of the bunter, but otherwise the dog remains in the path of the bunter and bobbintransfer occurs. A finger 42 on an arm 43 adjustably secured to the dog acts on the feelercarrier to withdraw the feeler from the shuttle when the transfer occurs. At each non-detecting beat-up of the lay, for example, when the shuttle is in the shuttle box at the non-replenishing side of the loom, a projection 57 on a cam-operated lever 60 engages an arm 54 and rocks a spring- controlled shaft 48 provided with a slotted arm 49, which acts on a pin 53 on a lug 52 on the dog 17, thereby moving this out of the path of the lay-bunter. The dog may be made adjustable by forming it in two parts connected by an adjusting-screw 22.
Patent GB-173265-A (GB)
Title: Improvements in or relating to processes for treating gun-cotton or other fibrous materials
IPC: C06B21/00
Filed: 1920-08-20
Abstract: 173,265. Explosives Trades, Ltd., (Wardenburg, F. A.). Aug. 20, 1920. Pulp, catching and recovering.-Relates to the recovery of particles carried by the waste washing, &c. liquids in the treatment of guncotton and other fibrous materials by a process which includes a pulping operation and the washing of the material before pulping. The waste waters from the pulping operation and/or any subsequent washing are, in order to recover the particles suspended therein, mixed with and caused to flow through a body of the unpulped material which while being washed acts at the same time as a filter bed for the recovery of these suspended particles. As applied to the manufacture of guncotton, the cold wash waters containing particles of guncotton in suspension and coming from the beater engine 13 and poacher 25 are collected in the cold water save-all tank 21, and are employed for the " drowning " of the guncotton coming from the centrifugal wringer 3; the hot wastewaters from the poacher 25 are collected in the hot water save-all tank 28, and are employed in the boiling operation in the boiling tube 10. The complete process is as follows; from the nitrating-apparatus 1 the guncotton is transferred to the wringer 3 for the recovery of acid, is then dropped into the basin 4 in which it is " drowned " with cold water from a tank 32, passes to a pump-tank 7 after the addition of any particles separated from the acid passing from the wringer 3, and is then transferred to the boiling tub 10; after each boiling and washing in this tub, the waters are drained off, the mass of guncoffon acting as a filter-bed for particles carried by the waste waters into the tub; pulping is effected in the beater engine 13 and the stuff-tank 15 to which is connected a Jordan engine 17, or in the latter tank alone; waste wash waters from the beater engine escape through a rotary sieve 19 and are collected in the save-all tank 21; after pulping, the mass is transferred to the poacher 25, having swinging pipes 26, 27 for decanting off after each washing the cold and 'hot water respectively, which are separately collected in the tanks 21, 28. Fresh hot water is supplied from a heater 42 to tanks 43, 39, the first supplying the poacher, and the latter which is also fed from the save-all tank 28, the boiling tub 10 ; the waste waters in the tank 21 are fed to a tank 32, from which, with any necessary fresh water, is taken the water for " drowning."
Patent GB-1331363-A (GB)
Title: Method of compensating for an error in the angular position of a stepping motor
IPC: H02K37/00
Filed: 1971-04-19
Abstract: 1331363 Photo-electric angular position control LICENTIA PATENT-VERWALTUNGS GmbH 19 April 1971 [28 Feb 1970] 24330/71 Heading G1A [Also in Divisions G4 and H2] In a system in which a stepping motor, (2), Fig.1 (not shown) is positioned by digital control signals a, a<SP>1</SP>, b, b<SP>1</SP> (Fig.3) applied to windings A, A<SP>1</SP>, B, B<SP>1</SP>, an error in the motor position results in a correction signal being applied over conductor 33 to one of the windings of the motor. As described when a disc driven by the motor is incorrectly positioned photo-diodes 13, 14 sensing two tracks 180 degrees phase displaced Fig.2 (not shown) on the disc receive differing amounts of light resulting in an output signal across terminals c, d of a bridge circuit 24. This error signal is applied via differential amplifiers 17, 18 and one of two switching amplifiers 19, 20 to one of the windings A or A<SP>1</SP> (depending on which is energized). The switching amplifiers comprise a first transistor (26), Fig.4 (not shown) rendered non-conductive when the associated digital control signal is "1" so that two further transistors (27, 28) conduct to apply current to the associated winding. The error signal is applied to the base of one of the further transistors (27) so that it only effects the winding current when the transistor is conductive. A single track scanned by one or two photo-diodes may alternatively be used to derive the error signals. The photo-diodes may be replaced by phototransistors.
Patent GB-477062-A (GB)
Title: Improvements in or relating to elastic bands of garments
IPC: A41F9/02
Filed: 1936-09-07
Abstract: 477,062. Elastic bands of garments. SCHEITLIN, A. Sept. 7, 1936, No. 24351. Convention date, Feb. 11. [Class 141] A band for garments comprises an inserted rubber lining strip 2 which is located between a covering strip 3 of elastic fabric forming the inside of the band, and an inelastic fabric portion 1 of the garment forming the outer side of the band, the strips 2, 3 being connected with the garment fabric 1 by means of marginal seams 4, and the garment fabric being pleated in the unstretched condition of the rubber strip 2. The covering strip may overlie the rubber strip 2 only on the inside thereof. In a modification, several seams are provided between the marginal seams. In a further modification, two or more rubber lining strips each with their covering strip are secured to the garment fabric so as to leave one or more ventilating spaces.
Patent GB-1254060-A (GB)
Title: Arrangement for measuring the oxygen content of a bath
IPC: G01N27/00
Filed: 1969-05-14
Abstract: 1,254,060. Electro-chemical analysis. CENTRE NATIONAL DE RECHERCHES METALLURGIQUES. May 14, 1969 [May 14, 1968; Feb. 18, 1969], No. 24516/69. Heading G1N.  A solid oxygen-ion electrolyte probe comprises a pellet of stabilized zirconia into which an e.g. silica tube is embedded. The end of the tube may then be heated until it starts to soften, which treatment also hardens the pellet by fritting. A Pt-Pt/Rh thermocouple is embedded in a layer of powdery material (e.g. platina or zirconia) in the bottom of the tube. The reference gas may be supplied through inner refractory tubes carrying the thermocouple wires.
Patent GB-460268-A (GB)
Title: Transportable installations for mixing and delivering grout and the like
IPC: F04B9/02
Filed: 1935-07-26
Abstract: 460,268. Pumps for grout and the like. ANNISON, R. H. July 26, 1935, No. 24591 /36. Divided out of 460,256. [Class 102 (i)] [Also in Group X] A plant for delivering grout or the like comprises a pump A, a mixing-apparatus 40, and a motor unit 46, mounted on a trolley 38. The motor may be an electric motor, or a steam or pneumatic engine. As shown, an internal-combustion engine is employed, having a cooling unit 47, and driving a shaft 45 through speed-reducing gearing 50. The mixing-apparatus is driven through bevelgearing 44, which can be coupled to the shaft 45 by means of a clutch 53, and the pump shaft 37 can be connected to the shaft 45 by means of a clutch 55. The pump may be of the kind described in Specification 460,256. A grinder may be associated with the mixing- apparatus.
Patent GB-1430150-A (GB)
Title: Filterpress
IPC: B01D25/172
Filed: 1973-05-23
Abstract: 1430150 Filter press U PASSAVANT AG MICHELBACHER HUTTE [trading as PASSAVANT-WERKE MICHELBACHER HUTTE] 23 May 1973 [2 June 1972] 24598/73 Heading B1D In a filter press comprising plates 1, 1', 1" connected by connecting means such as pivotally connected rods 7, 8, 7', 8' or cable or chains (not shown), the plates are associated with cams 10, 10' which during the opening of the press are moved, as a result of a change in position or shape of the connecting means, into a position in which they are contacted by a moving member such as reciprocating member 11 or rotating member (not shown). In the opening of the press headpiece 13 is hydraulically moved to the left pulling with it a first group of plates. The cams of the separated plates are in a vertical position. The cam 10' is then pushed by member 11 closing the first group of plates and separating a second group of plates. When the first group is closed the member 11 is automatically returned to its starting position. The process is repeated until all the plates have been separated, after which headpiece 13 is actuated to move all plates to their original closed position. When the plates are in an open position filter cake ejecting means and spray means may be introduced therebetween. The apparatus may comprise a plurality of entrainment members.
Patent GB-223593-A (GB)
Title: Improvements in or relating to the propulsion of ships
IPC: B63H23/00
Filed: 1924-10-17
Abstract: 223,593. Vulcan-Werke Hamburg und Stettin Akt.-Ges. Oct. 17, 1923, [Convention date]. Addition to 213,156. Driving-arrangements for screw propellers.- The ships driving gear described in the parent Specification is modified by placing the hydraulic clutches for the forward and reversing mochanical gearing at opposite ends of each internal combustion engine. Forward and reverse hydraulic clutches 3, 4 are placed at opposite ends of the engine 1. The clutch 3 drives the shaft 9 direct through gears 5, 6 and the clutch 4 drives it through gears 5, 7 and an intermediate gear. The clutches are emptied and filled through openings 10 and passages in the ends of the crankshaft. The shaft 9 may be in two portions fitted with a clutch intermediate of the gears 6, 7, or with a single piece shaft the gear 7 may be coupled thereto by a clutch. The control of these extra clutches may be coupled to the controls of the emptying and filling devices of the hydraulic clutches. The combined power and transmision unit is applicable to locomotives or motor road vehicles.
Patent GB-1498407-A (GB)
Title: Displacement detecting devices
IPC: G01D5/241
Filed: 1975-05-06
Abstract: 1498407 Measuring displacement electrically DEFENCE SECRETARY OF STATE FOR 6 May 1975 [4 June 1974] 24798/74 Heading G1N The clearance between the tip of a blade of a compressor or turbine and a casing is monitored by means of a capacitive probe 1 forming part of the frequency determining circuit of an oscillator 2. Probe 1 includes a pair of spaced electrodes 3, 4 insulatingly 5 mounted in a screen 6 so that as a blade passes the electrodes the capacitance therebetween is changed in dependance on the clearance between the electrodes and the blade, causing the FET oscillator 2 frequency to deviate by an amount inversely proportional to the clearance. The frequency deviations are detected by means of a mixer 7 and frequency discriminator 9, the output of which is a series of pulses the amplitudes of which are inversely proportional to the clearances and which are fed to an oscilloscope 10 and a display 12 via a peak detector 11.
Patent GB-887153-A (GB)
Title: Improvements in or relating to machines and methods for dewatering paper webs
IPC: D21F7/00
Filed: 1959-07-20
Abstract: 887,153. Fourdrinier paper - making machines. BELOIT IRON WORKS. July 20, 1959 [Nov. 19, 1958], No. 24856/59. Class 96. In a Fourdrinier paper-making machine wherein the wire-cloth is supported during its travel over the suction box 12 by a travelling foraminous belt 11 passing over rolls 13, 14 bolted as illustrated to the ends of the suction box, the belt 11 is renewed by raising the suctionbox assembly by chains 69, 72, &c. which are looped around shafts projecting from the ends of the rolls 13, 14 and are secured by hooks 73, 81, &c. to strong-backs and cables raised by an overhead crane, the assembly is carried to a belt-changing location where it is up-ended, the roll 13 then being uppermost, and rested by trunnion pins 82 on support bearings, a strong-back being disconnected from the roll 14. The assembly is then supported on a vertical cantilever column. The support brackets for the upper roll 13 are disconnected from the suction box and, with the roll and the belt 11, are moved out axially, the roll 13 is removed from the worn belt and inserted into a new belt which with the roll 13 &c. is moved axially so that the new belt encompasses the suction box &c. The assembly is then returned to the position illustrated, and lowered so that it rests on platforms 48, 49 and 51 to which it is secured by bolts 56 &c. which are swung upwardly to enter slots 58 &c. In this, the operating position, the lower run of the belt 11 contacts guide rolls 66, 67, the roll 67 being pivotally mounted at one end and movably mounted at the other, the movement, to correct wander of the belt 11 being effected with bellows under controlled air pressure; and a flexible guard 47 deflects water, thrown from the belt 11, from reaching the wire-cloth.
Patent GB-1298644-A (GB)
Title: Fluorescent pigments
IPC: C08G18/75
Filed: 1971-04-19
Abstract: 1298644 Luminescent materials G SIEGLE & CO GmbH 19 April 1971 [20 March 1970 28 Dec 1970] 24928/71 Heading C4S [Also in Division C3] A fluorescent pigment is prepared by (a) reacting a mixture of an organic diisocyanate (I) with at least one organic sulphonamide (II) or polyol (III) to form a resin, the number of isocyanate groups present being 50-110% of the active hydrogen atoms available for reaction; when the comonomer component is a polyol an aliphatic or cycloaliphatic diisocyanate is employed; (b) dispersing a known fluorescent colouring material (e.g. Rhodamine B, Rhodamine 6GDN, Brilliant Yellow 6G, Sulphorhodamine B, Sulphoflavine) in the resin; and (c) comminuting the product. In a modification of the process the colouring matter may be added prior to the formation of the resin. II may be a benzene-, toluene-, naphthalenenitrobenzene-, chlorobenzene-, sulphonamide, sulphanilide, methane-, phenylmethane-sulphonamide or a benzene- or naphthalene-disulphonamide. III may be a di-( #-hydroxyalkoxy)- benzene, a polyol C n H 2n+2-m (OH) m  (n = 2-8, m = 2-4) or a diol HO-X-Y-X-OH (X is alkylenephenylene or cyclohexylene and Y is alkylidine), many specific examples being disclosed. The resin may contain a minor amount of a modifying agent, e.g. urea, thiourea, diamide of an alkanedioic acid, biuret dicyandiamide or an aminotriazine and non-fluorescent dyes and optical brighteners. Typical I are 3- isocyanatomethyl - 3,5,5 - trimethylcyclohexyl isocyanate, trimethyl-hexamethylene diisocyanate and 4,4<SP>1</SP>-diisocyanatodiphenyl methane. The products have good light and weather resistance and have softening points approaching 300 C.
Patent GB-435643-A (GB)
Title: An improved relay for converting light variations into electric oscillations
IPC: H01J40/00
Filed: 1933-12-15
Abstract: 435,643. Photometric apparatus. JOHNSON, J. Y., 47, Lincoln's Inn Fields, London.-(Ternion Akt.-Ges. ; Glarus, Switzerland) Dec. 15, 1933, No. 25002/34. Divided out of 417,501. [Class 97 (i)] [See also Group XL] Apparatus for measuring intensity of light by converting light variations into corresponding electric variations comprises two pairs 2, 3 and 3, 4 of electromagnetically-excited plate resonators, one pair having between its plates a light-sensitive layer 5, and the two resonators being excited by high-frequency oscillations from valves 7, 9 in such a way that beat or interference frequencies are produced in the output circuit 12. The operation depends upon the change of frequency of the resonator 3, 4 due to the change in its dielectric constant under the influence of the light projected on the layer 5 by the optical system 26. The plate resonators are described in Specification 417,564, [Group XL]. The generator 9 acts also as a rectifier so that the beats produced in the transformer 12 vary in frequency with the amount of light falling on the layer 5. In a modification, Fig. 2 (not shown), the valve 9 is replaced by a valve having two similar anodegrid systems arranged symmetrically about a common cathode, one system being connected to the resonator 3, 4 and the other, which acts as a rectifier, to a tunable tubular conductor. The light-sensitive layer 5 may be kept at a constant temperature by a thermostat 25 and may comprise phosphorescent zinc sulphide with a small amount of copper, this being sensitive to infra-red rays. The output 12 may be connected to a light-modulator, described in Specification 417,564, whereby the interference oscillations generated can be made visible as figures in two dimensions.
Patent GB-195105-A (GB)
Title: Improvements in lift valves
IPC: F16K27/00
Filed: 1921-09-21
Abstract: 195,105. Marks, E. C. R., (Worthington Pump & Machinery Corporation). Sept. 21, 1921. Check lift valves; spindles.-A lift valve more particularly for pumps, compressors, or the like, is provided with a coaxially disposed loosely mounted guide whereby the valve is able to seat properly although the seat may not be at the correct angle, namely 40‹, with respect to the axis. This arrangement is described and shown in a combination of suction and discharge valves 14, 15 arranged in line. The valve 15 is guided by a fixed member 16 screwing into the seat 13 and into a guard 19. The suction valve guard 23 is made integral with the seat 13 and is provided with a recess 2 in which the loosely-mounted guide 3 is secured by a pin 4. The guide 3 is thus capable of slight play so that the suction valve will seat properly, although the two seats may not be exactly parallel. The lower end of the guide 3 is provided with a head 8 to engage and remove the valve 14 when the apparatus is disassembled. The parts are maintained in correct position by a strong spring 21.
Patent GB-822417-A (GB)
Title: Improvements in water-tube steam boilers
IPC: F28F1/14
Filed: 1957-08-08
Abstract: 822,417. Water tube steam boilers. HUET, A. Aug. 8, 1957 [Aug. 14, 1956], No. 25062/57. Class 123(2) A water-tube steam boiler heated by hot fluid, for example, the coolant gas from a nuclear reactor, comprises a cylindrical casing a through which the fluid passes upwardly as indicated at A and which contains an economizer b, identical assemblies d, c of water tubes respectively constituting high andlow pressure boilers and a superheater f. Each boiler consists of a steam and water drum e and a water drum l disposed one above the other coaxially of the easing, the drums being respectively connected by tubes c<SP>1</SP> k to rings of headers g, j of Which vertically corresponding headers are connected by vertical downcomer pipes m. Nine inclined sub-headers h, i extend respectively from each of the headers g, j flong radii of the cylinder a, vertically corresponding sub-headers h, i being connected by vertical steam generating tubes d. The tubes d are preferably finned as shown at s in Fig. 5 and contain tubes t through which the heating fluid passes, the working fluid being contained in the annulus between the tubes. A helical member disposed in contact with the outer tube only is aranged in the annulus to give the rising steam-water mixture a spining motion causing some separation of the water and steam, the latter passing upwardly along the inner wall of the annulus. Further separation occurs in the subheaders h and in the headers g. To give more efficient external-heating of the tubes s cruciform section core elements u having arms of undulating contour are disposed between the tubes. The bank of generating tubes may be prefabricated in sectors to reduce the site welding, The tubes in each sector increase in diameter from the inner to the outer ring to fill the space available completely whilst ensuring that the. tubes all operate under the same conditions as regards heat exchange.
Patent GB-291043-A (GB)
Title: Process of making absorptive carbon and product thereof
IPC: C01B31/12
Filed: 1927-09-23
Abstract: 291,043. Carbide Carbon Chemicals Corporation, (Assignees of Ray, A. B.). May 25, 1927, [Convention date]. Carbon.-In the preparation of activated carbon, non-coking coals of a bituminous or subbituminous nature are impregnated with an aqueous solution of a carbonizing agent, heated to dryness and then calcined at temperatures upwards of 600‹ C. The calcined product is cooled, leached with water or dilute acid and dried, or it may be further activated by a treatment at high temperatures under oxidizing conditions, e.g., with superheated steam at 800‹-1000‹ C. Coking coals and lignites may also be employed with suitable pre-treatment such as prolonged heating at 200-300‹ C. under oxidizing conditions, for instance in presence of air, mixed or not with oxygen or nitrogen, or of combustion products, or to an equivalent treatment with solvents or oxidizing agents such as strong nitric acid, sulphuric acid, or moist chlorine. This pretreatment may either precede or follow the impregnation with the carbonizing agent. As suitable carbonizing agents, zinc chloride, phosphoric acid, and potassium sulphide are mentioned. The coal may be granulated, or briquetted before heating. The process may be applied to weathered coals and in general to all coals and coal-like products which are or can be rendered non-coking and to mixtures of non- coking coals with cellulosic materials, peats, lignites and the like. Tar or glucose may be added as a binding agent. Heating may be effected in an internally fired rotating drum, or in an electric resistance furnance, at temperatures above 600‹ C., and preferably between 800‹ and 850‹ C. Oxygen is admitted if phosphoric acid has been used. Reference has been directed by the Comptroller to Specification 230,293.