baber/WOPTO huggingface dataset:
Patent GB-688099-A (GB)
Title: Improvements in or relating to arrangements for coding and decoding electrical signals
IPC: H03M1/00
Filed: 1951-06-22
Abstract: 688,099. Cathode-ray tubes. WESTERN ELECTRIC CO., Inc. June 22, 1951 [June 29, 1950], No. 14886/51. Class 39(i) [Also in Groups XL(b) and XL(c)] In a coding arrangement for successive samples of an electrical signal pulses are derived of amplitude inversely related to the known probability of occurrence of the particular samples. Since the system accommodates preferentially the signal samples of greatest probability a reduction in transmitting, however, is possible. In one arrangement (a " monogrammer ") signal samples of quantised amplitude are applied to one pair of deflection plates of a cathode ray tube having discrete linearly connected elements of varying opacity forming an elongated mask on the face of the tube, so that pulses stepped in amplitude, from zero upwards inversely related to the probability of the sample amplitudes are fed by luminescence to a photo-cell. In Fig. 2 (not shown), (a digrammer "), the output pulse amplitude is made dependent on and takes advantage of the correlated probability of occurrence of two succesive samples each fed to pairs of deflection plates of a tube, one through a delay network of delay equal to the sampling interval, the discrete elements being arranged in two dimensions, in rows and columns, on the tube screen. In Fig. 3 (a "tetragrammer ") one of n quantising levels of each of two successive samples of a signal is respectively applied to pairs of deflection plates of a cathode ray switching tube 40 so that the electron beam strikes one of n2 target electrodes 59. The latter are each connected by wiring to switch on selectively one of n2 " digrammer" tubes 51, 52 ... to all of which, in parallel, other pairs of signal samples are simultaneously applied. Advantage may thus be taken of correlation between samples taken over more than one dimension. Thus in television image transmission the delay due to delay network 42 between the pairs of samples applied simultaneously to tubes 51, 52 ... is equal to that between successive lines and the delay due to network 44 between the pairs of samples applied to switching tube 40 and the parallel tubes 51, 52 ... is equal to that between successive scanned lines, or less, if desired by the time between one or two samples of a scanned line. The "digrammer" tubes 51, 52 ... may alternatively, like tube 40, have target electrodes, and each may be connected to taps on a load resistor. At a receiver the signals pass to a decoder similar to the coder except that the tube masks have opacities inverse to those at the transmitter.
Patent GB-494891-A (GB)
Title: An improved process for the production of white cement
IPC: C04B7/42
Filed: 1938-05-19
Abstract: White cement is obtained by mixing chloride of lime with the cement raw materials, heating the mixture in a reducing atmosphere until sintering occurs, and cooling with the exclusion of air. The raw materials may be pretreated with chlorine to form the chloride of lime in situ.  A flux such as fluorspar may be added. Part of the chloride of lime may be replaced by selenium, in which case alkali chlorides may also be added.
Patent GB-1009728-A (GB)
Title: Vehicle detector switches for railways
IPC: B61L1/08
Filed: 1962-04-18
Abstract: 1,009,728. Magnetic switches. H. DONATH. April 18, 1962 [April 18, 1961; Nov. 12, 1961], No. 14976/62. Heading H2B. [Also in Divisions B7 and G1] A magnetically operated train wheel detector comprises a pair of magnets 7, 12 and a sealed switch device including a pair of switch contacts 2, 3, made of a magnetic material, which are resiliently mounted on the web of a rail. The switch with open contacts may be positioned in the neutral zone 13 of the magnets such that when the zone is diverted by the presence of a train wheel 14 the contacts are acted upon by the magnetic field and close.
Patent GB-138305-A (GB)
Title: Improvements in or relating to supplementary air and water injectors for internal combustion engines
IPC: F02M25/022
Filed: 1919-06-13
Abstract: 138,305. Courrejou, M. Jan. 25, 1919, [Convention date]. Cylinders, pipes for; charge, moistening.-Additional air and water are admitted to the induction pipe by a device comprising a suction-actuated air-inlet valve 13, with a passage 14, 30 through the valve and its rod which communicates with a water pipe 27 when the valve is sufficiently opened by the engine suction. The valve casing is secured to the induction pipe by an adapter 5 having a throttled passage 6, and the valve is normally held on its seat by an adjustable spring 17. The pipe 27 is pressed against the stem of the valve 13 by a spring 25, and forms a continuation of the water supply pipe 32. Hot water from the radiator may be admitted to the pipe 27, which is regulated by a needle valve. The Specification as open to inspection under Sect. 91 (3) (a) states that steam from the radiator or from a water pipe heated by the exhaust may be admitted to the pipe 27. This subjectmatter does not appear in the Specification as accepted.
Patent GB-552338-A (GB)
Title: Improvements in electric heaters chiefly designed for use in drying cabinets
IPC: A47K10/06
Filed: 1941-11-21
Abstract: 552,338. Electric heaters. BURT, F. E., and RELY-A-BELL BURGLAR & FIRE ALARM CO., Ltd. Nov. 21, 1941, No. 15043. [Class 39 (iii)] An electric heater suitable for use in a drying cabinet comprises metal tubes A with porcelain, glass or fireclay rings B, or a continuous tube, containing a helical resistance wire C. The tubes are connected to junction boxes D which are connected together by transverse tubes E containing the conducting leads. One of the conducting leads extends through a tube A<SP>1</SP> between the tubes A. The flat grid thus formed, mounted on runners K or rollers, may be fitted into the lower part of a fur-drying cabinet, or the grid may have upwardly extending portions at each end, adjacent to the sides of the cabinet.
Patent GB-1385761-A (GB)
Title: Micrometer including a counter device therein
IPC: G01B3/18
Filed: 1972-03-30
Abstract: 1385761 Micrometer Y NUMATA 30 March 1972 [11 May 1971] 15082/72 Heading G1M A micrometer includes a counter mechanism 40 for displaying a measurement result digitally. A spindle 8 may be rotated by a ratchet 34 or by the thimble 41 and moves the anvil 2 axially by means of its left handed external screw thread engaging a threaded portion 6 of the anvil, the anvil being prevented from rotating by means of a key screw engaging a key way in the anvil Fig. 2 (not shown). Ratchet 34 has a threaded extension 34Athreaded on to the end of spindle 8. Thimble 41 is locked to a nut 23 by set screw 30, and nut 23 is coupled to spindle 8 via lock nut 28 and end cap 29, nut 23 and nut 28 being screw threaded on to sleeve 27. Thimble 41 carries an internal ring gear 22 which drives a pinion 21 mounted on shaft 19. Pinion 18 also mounted on shaft 19 drives a gear 16 which drives the counter mechanism via a guide ring 15  rigid with the gear 16. The screw 30 may be slackened to allow the zero to be set. An anti-shock mechanism consists of a series of balls 24 disposed in a groove in the micrometer frame and abutting a shoulder 23A of the nut 23 and a ring 25 biased towards shoulder 23A by a spring 26.
Patent GB-636955-A (GB)
Title: Improvements in presses for drawing sheet metal
IPC: B21D22/06
Filed: 1947-06-09
Abstract: 636,955. Cupping &c. FITZPATRICK, H. J. (Clearing Machine Corporation). June 9, 1947, No. 15093. [Class 83 (iv)] In a drawing &c. press with two slides operating on the upper side of the bed, one of the slides being carried by the other for movement therewith by the operating mechanism of the carrier slide for a predetermined distance after which the operating mechanism is rendered inoperative whilst the carried slide is actuated independently, a slide located on the lower side of the bed is operated in the opposite direction intermediate the operation of the upper slides. The outer. clamping slide 14 is actuated by linkage 20, 25, 26, 27, 30, 31, 32, 38 from eccentrics 34 in the base 12 of the press. The eccentrics 34 also drive through straps 36 and linkage 73, 74 the lower slide 72. An inner slide 48 is mounted on lugs 49 of the outer slide 14 and is actuated independently of the outer slide by eccentrics 59 in the head through linkage 60, 50, 52. Screws 22 &c. are provided for adjusting the slides. Means, not shown, are provided for rendering the mechanisms inoperative in sequence. Operation. By rotation of the eccentrics 34, the clamping slide 14 and the slide 48 are lowered together, the eccentrics 59 being inactive and the straps 60 rotating idly about the eccentrics. The slide 72 is raised by the eccentrics 34 which are then stopped to provide a dwell for the slides 14, 72, and the eccentrics 59 are then rotated to lower the slide 48 to complete the operation.
Patent GB-459130-A (GB)
Title: Improvements in methods for stripping coatings from coated metal articles
IPC: C23F1/44
Filed: 1935-05-24
Abstract: In a method of stripping a composite coating formed of a plurality of layers of different metals from a metal article where the outer layer consists of or comprises one or more metals of the platinum group and the undercoating is of base metal, the coated article is treated with a solvent that will dissolve the base metal but will not attack the metal of the article or of the outer coating layer.  In stripping a composite coating of a plurality of layers of nickel and rhodium from a silver or silver-plated article, the article is immersed in an acid bath, e.g. one comprising a mixture of phosphoric and/or hydrochloric acid and water, the major portion being the acid, which dissolves the nickel but does not attack the silver.  The phosphoric &c. acid may be replaced by an organic acid which does not attack silver such as acetic acid, and the bath may also contain a small quantity of a metal sulphate such as aluminium sulphate and also sodium chloride. In one example, the bath comprises a mixture of two-thirds of a litre of phosphoric acid and one-third of a litre of water containing 56 grams each of aluminium sulphate and sodium chloride.  If desired, one-third of a litre of phosphoric acid may be substituted by one-third of a litre of hydrochloric acid, and the amounts of the sulphate and chloride are 28-56 grams.
Patent GB-710543-A (GB)
Title: Improvements in or relating to a device for producing oscillations
IPC: B06B1/10
Filed: 1952-06-17
Abstract: 710,543. Cam mechanism. FAULHABER, T., and FAULHABER, R., [trading as AUTOTEILE-PRAZISION KOMMANDIT-GES. T. FAULHABER & CO.], and JACOBS, W. June 17, 1952 [June 18, 1951], No. 15210/52. Class 80 (3) [Also in Group XXII] In cam mechanism for converting rotary into vibratory motion a ring 3 on a driving shaft 4 rotates between two sets of balls or rollers, one of which engages a race on a fixed ring 2 to form a thrust bearing, while the other set engages an undulating race surface on a ring 5 which is supported by a leaf spring 6, or other resilient means, carrying the tool 7 or other member to be vibrated.
Patent GB-780279-A (GB)
Title: Improvements in or relating to silos or like cells for granular goods
IPC: B65D88/74
Filed: 1955-05-26
Abstract: 780,279. Silos. CLARAC, R. P. E. May 26. 1955, No. 15210/55. Class 20(1) A silo or the like is built up from stanchions 1 connected by slats 2 formed by plane trapezoidal deformable elements which are curved so that their non-parallel sides become parallel, these sides being fixed to the stanchions. The slats may be so curved that the shorter of the unequal sides 4 remains straight and is mounted towards the bottom, Fig. 1. In a modification, Fig. 4, both unequal sides are curved and the shorter side is mounted towards the top.
Patent GB-657050-A (GB)
Title: Improvements in or relating to magnetrons
IPC: H01J25/587
Filed: 1947-06-10
Abstract: 657,050. Magnetrons. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. June 10, 1947, No. 15222. Convention date, Sept. 28, 1946. [Class 39 (i)] In a magnetron having an anode block comprising more than two anode segments, the emissive cathode presents the shape of a plate, emitting on its two flat opposite faces; and the inner and outer boundaries of the anode block comprise surfaces parallel to the cathode emitting faces, the inner parallel surfaces of the anode block being joined together at each end by a semi-cylindrical surface. The whole of the cathode may emit primary electrons, or only at certain points such as at one or both ends or midway between the two ends, the remainder of the cathode being utilized for secondary emission. In one embodiment the primary emissive elements 3, Fig. 2, are located at both ends and also midway between the two ends. The secondary emissive portions 2 may comprise two plates consisting of an alloy of copper and beryllium, or may consist of a metallic support covered with oxides of barium. The anode 1 may comprise a multi-cavity resonator structure, Fig. 3. The anode segments A1, A2 ... are strapped together in pairs as shown, or opposite segments may be strapped together. The anode structure may comprise interdigitated segments 4, 4<SP>1</SP>, Figs. 4a, 4b, connected alternately to cheeks 1, 1<SP>1</SP>. Connections A, B are provided between the lateral walls of the cheeks 1, 1<SP>1</SP> to ensure that at every instant they are held at the same high frequency potential.
Patent GB-241607-A (GB)
Title: Improvements relating to the construction of ships
IPC: B63B3/00
Filed: 1924-06-25
Abstract: 241,607. Lovett, W. J. June 25, 1924. Decks.-In order to secure an increased draft and deadweight for a ship without increasing the registered tonnage, the freeboard deck b is constructed substantially parallel to the keel c throughout its length. The line of the freeboard deck of the normal vessel is shown at c and whilst the respective load water lines are shown at d and f. The construction thus results in the raising of the load water line and a reduced height amidship between the superstructure deck b and the freeboard deck and an increase between deck height at the bow and stern.
Patent GB-784757-A (GB)
Title: Improvements in circular knitting machines for the production of seamless knitted footwear
Inventor: SMITH BERT
IPC: D04B9/00
Filed: 1955-05-27
Abstract: 784,757. Knitting-machines. STIBBE & CO., Ltd., G. April 17, 1956 [May 27, 1955], No. 15321/55. Class 74 (2). Lugs 7 are supported on a stationary ring 8 secured to the yarn feeder column and welt dial drive column of a rotary cylinder machine, and bear against the outer periphery of the sinker cam cap 6 to maintain it steady and concentric with respect to the sinker ring and needle cylinder. Clips are provided secured to the cam cap 6 which engage beneath the ring 8 or sinker ring for the purpose of holding the sinker cam cap down.
Patent GB-317896-A (GB)
Title: Improvements in reciprocating or jigging conveyors and loaders therefor
IPC: B65G65/00
Filed: 1928-05-25
Abstract: 317,896. Jensen, C. A., (Rock Springs Loader Co.). May 25, 1928. Jigging conveyers. -In a jigging conveyer the end section 1a carrying the shovel 2 is slidable on rollers 9 mounted on the adjacent section 1 and is held in any position by clamps 20, 21 actuated by a lever 14. The rollers 9 are mounted on standards 7a at the ends of a transverse bar 7 secured to the section 1. Each standard is braced by a bar 10 secured to a block 11a on a shoe 11 which is secured to the section 1 by a bolt 12 passed through the blocks 11<a>, 11<b> and a standard lug 13 on the section. The block 11b is secured to the shoe and also to the bar 7. The bail-shaped lever 14 is pivoted at 15 to the standards 7a and at 17 to links 16 which are connected to swinging members 18 carrying the clamps 20, 21. The members 18 are pivotally connected to a bail-shaped lever 19 and also are connected to it by springs 26 which are under tension and cause the lugs 25 firmly to press on the links 16 and hold the lever 14 against unlocking movement. If the parts are in the position shown in Fig. 1, when the edge of the shovel is arrested suddenly, the levers will swing upwards and forwards, and the clamps will be freed, thus allowing the section 1 to advance with respect to the section 1a. Release of the clamps is ensured by providing on each standard 7a a cylinder 28, Fig. 5, closed by a cap 29 and containing plungers 30, 31 between which is interposed a spring 32 or other cushion. The stem 30a of the plunger 30 bears against the clamp 30. The initial tension of the spring is varied by adjusting the threaded rod 31a which bears against the plunger 31. If it is desired alternately to effect the release and engagement of the clamps during successive movements of the conveyer in order to advance the shovel, the lever 19 is placed in position 5, Fig. 1, the lever 14 is moved to position 2 and is held there during the movement of section 1 towards section 1a, and is then moved to position 1 and is held in that position during the movement ofthe section 1 away from the section 1a which remains at rest. Adjacent sections of troughing may be clamped together by a hook 43 actuated by a lever 42 and eccentric members 38, 41.
Patent GB-188350-A (GB)
Title: Improvements in or connected with extensible tables
IPC: A47B1/02
Filed: 1922-03-03
Abstract: 188,350. British & Foreign Industrials, Ltd., and Cooklin, I. March 3, 1922. Telescopic and expanding tables.-In an extensible table wherein a leaf 10 may be raised from and lowered to a stowed position on slides 2, 3 attached to the ends 1 of the table, the inner slides 3 have pins 13 engaging in slots 14 partly inclined and partly horizontal in bars 11 on either side of the leaf. Upon separation of the ends of the table in the usual manner, the leaf is moved up into position by the engagement of a projection 17<x> on the outer slides 2 with the end of the leaf. In lowering the leaf, projections 18 on the leaf strike stops 19 on the outer slides 2 upon preliminary opening of the table to cause the leaf to leave the ends, and it is lowered upon screwing up the table.
Patent GB-545938-A (GB)
Title: Method of producing silicon steel sheet or strip
IPC: C22C38/02
Filed: 1940-10-17
Abstract: 545,938. Heat-treating and working silicon steel; cementation. WILLIAMS, W. P. (Armco International Corporation). Oct. 17, 1940, No. 15409. [Class 72] [Also in Group XXII] Silicon steel sheet or strip containing 0.15-4.0 per cent. silicon and containing carbon is hot rolled to a gauge not greater than 0.11 inches, preferably 0.06-0.11 inches, decarburized by box annealing with the hot mill scale thereon, preferably at 1350‹-1450‹F., and cold rolled to final gauge preferably followed by a final open annealing to develop the magnetic characteristics of the product. The decarburizing is carried out until the carbon content is at the most 0.015 per cent. and the final annealing may be carried out at 1500-2100‹F. The cold rolling may be stopped when the material is within 3-15 per cent. greater than the final gauge, and after an intermediate open annealing is cold rolled to the final gauge before the final annealing. The material may be pickled after the decarburizing and after the intermediate annealing.
Patent GB-576135-A (GB)
Title: A method of purifying electrolytes
IPC: C25C1/16
Filed: 1943-09-20
Abstract: 576,135. Purifying zinc electrolytes. JENNINGS, H. W. K. (Hudson Bay Mining & Smelting Co., Ltd.). Sept. 20, 1943, No. 15421. [Class 1 (iii)] [Also in Group II] Zinc dust coated with copper and indium is used to precipitate impurities from zinc electrolytes. The precipitant is preferably in the form of a finely divided porous mass through which the electrolyte is passed and in which the impurities are retained.
Patent GB-203378-A (GB)
Title: Improvements in shaft couplings
IPC: F16D3/56
Filed: 1922-06-01
Abstract: 203,378. Cooper, T. June 1, 1922. Clutches, friction; universal joints.-In universal shaft couplings, the coupling members are of the same diameter and are provided with radial slots into which springs are loosely inserted, a casing or band serving to hold the springs in place. The shaft 1 drives the shaft 2 through a clutch 5 and coupling- members 3, 4, each provided with radial slots 6, 7, in which are inserted blade springs 8. These springs may be bent into V or hairpin shape, or the split-pin form shown in Fig. 2, and may be laminated. The free ends of the springs are bent out to engage the walls of the slots 7, and the slots 6 have recesses to accommodate the rounded ends of the springs. A band, or a flanged ring 9 bolted to the member 3, may be provided to retain the springs in position. The casing 9 may serve also as an oil bath.
Patent GB-561156-A (GB)
Title: Improvements in or relating to optical objectives
IPC: G02B9/34
Filed: 1942-11-03
Abstract: 561,156. Optical objectives. TAYLOR, TAYLOR, & HOBSON, Ltd., and WARMISHAM, A. Nov. 3, 1942, No. 15475. [Class 97 (i)] In objectives comprising an asymmetrical simple divergent component behind two simple convergent components and in front of another convergent component, the convergent rear component is a triplet comprising a divergent element which is cemented between convergent elements and has a refractive index less than theirs by more than 06 and less than 16. The front cemented surface R<8> may be concave to the front and have radius between 19 and .28 times the equivalent focal length of the objective; the rear surface R<4> of the second component and the front surface R<5> of the third component may be convex to the front. Two of the four convergent elements may have mean refractive indices greater than 1.64, and the third, divergent component may have mean refractive index greater than 1.68. Limits of radii of other surfaces and complete data for one example are set out. Specification 542,508 is referred to.
Patent GB-617351-A (GB)
Title: An improved manufacture of hydrocarbon polymers
IPC: C08F36/04
Filed: 1946-05-22
Abstract: Polymers of a cyclic dimer of butadiene (vinyl cyclohexene) or piperylene are formed by heating the dimer to 280-400 DEG  C., preferably 290-330 DEG  C., until oily to resinous products are obtained.  Monomeric butadiene or piperylene may be used directly as the starting material when the temperature is kept below 200 DEG  C. for the dimer formation and then increased to 280-400 DEG  C. for further polymerization.  The products are completely soluble in benzene and may be separated into fractions by solvent extraction using such solvents as benzol, toluene, carbon tetrachloride, chloroform and ethyl and propyl ethers followed by the addition of a precipitant such as acetone or a lower alcohol.  The resins are useful as varnish bodying agents, adhesives and resin and rubber modifying agents.  In an example, a varnish is prepared by heating a mixture of the resin with alkali refined linseed oil until cured and thinning with a petroleum distillate.  1-Vinyl-3-cyclohexene, the dimer of butadiene-1,3, is prepared by heating butadiene at 130-170 DEG  C. for a few hours, either in the absence of oxygen or in the presence of a inhibitor such as hydroquinone, tertiary butyl catechol, benzoquinone or phenyl-b -naphthylamine. Methylated vinyl cyclohexenes are obtained by heating piperylene or isoprene.ALSO:1-Vinyl-3-cyclohexene, the dimer of butadiene-1 : 3, is prepared by heating butadiene at 130-120 DEG  C. for a few hours, either in the absence of oxygen or in the presence of an inhibitor such as hydroquinone, tertiary butylcatechol, benzoquinone or phenyl-b -naphthylamine.  Methylated vinyl cyclohexenes are obtained by heating piperylene or isoprene.