baber/WOPTO huggingface dataset:
Patent GB-1390613-A (GB)
Title: Gramophone pick-up guidance mechanisms
IPC: G11B3/38
Filed: 1971-03-25
Abstract: 1390613 Correction of tracking error R W B BIRCH 23 March 1972 [25 March 1971] 7821/71 Heading G5R [Also in Division G3] In a guidance mechanism for a gramophone pick-up 1, the latter is carried on a straight arm 2 pivoted at P, P1 on a slave arm 7 which can be driven around a fixed axis C1 if a sensing means indicates that the arm 2 is not at a predetermined angle relative to a further arm 11 which is rotatable about the pivot axis of the straight arm 2 and kept in engagement with a fixed abutment 12. The advantage of a straight pick-up arm (absence of side pressure on stylus), is thereby retained while tracking error may be eliminated. As shown, the arm 11 carries a lamp 9 and photo-cells 10a, 10b illuminated thereby. The arm 2 carries an opaque shutter 8 which intercepts the light to the cells, the two cells being equally illuminated when the arms 2, 11 are at the predetermined angle. In the event of an error, a motor 7a is energized to rotate the arm 7 thus shifting the pivot point of the arm 2 in the appropriate direction until the predetermined angle is again established. An edge E1 of the optical arm 11 is kept in contact, e.g. by a spring, with cam surface F1 of the abutment 12. This surface is so shaped that the arm 2 is always tangential to the record groove, to eliminate tracking error, when the arms 2, 11 are at the preset angle. The drive rate of the arm 7 is proportional to the magnitude of the error signal up to a maximum value and fixed thereafter. The edge E1 and surface F1 may be replaced by a rod fixed to the arm 11 and sliding in an aperture in a pivoted member. Other means of producing an angular error signal are envisaged, including the use of infra-red or ultrasonic radiation, or direct switching of the motor may be employed, using a reed or mercury switch operated by the arms 2 and 11.
Patent GB-103758-A (GB)
Title: Improvements in Splash Guards for Wet Spinning Frames.
Inventor: MONTGOMERY MATHEW
IPC: D01H1/16
Filed: 1916-06-05
Abstract: 103,758. Montgomery, M. June 5, 1916 Splash guards.-A splash-guard for a wet - spinning frame comprises brackets a secured to the collar rail e, and two plates c, d, one d of which slides in grooves j in angle - brackets b, secured to the other plate c and carrying pivot pins p which rest in slots in the brackets a. In the operative position, the brackets b rest on projections k on the brackets a, and the plate d rests at the bottom of the slots j. In the inoperative position, the plate d falls behind the plate c. Water dripping from the guard falls into a trough h, which may be attached to the brackets a.
Patent GB-1076544-A (GB)
Title: Process and material for the preparation of photographic colour images
IPC: C07D231/52
Filed: 1965-02-24
Abstract: Various compounds of the formula <FORM:1076544/C2/1> are prepared by reacting RCO.NCO with the 1-substituted-3-aminopyrazolone.  The compounds prepared are (D-Zn- 1- and R given): o-C16H33O, Ph; p-C16H33O, Ph; m-C16H33O, PH; m-C16H33O, m-FSO2Ph; p-C16H33O, m-FSO2Ph; o-C16H33O, m-FSO2Ph; o-C16H33O, p-FSO2Ph; o-C16H33O, p-cyano-Ph; m-C16H33O, p-cyano-Ph; o-C16H33S, m-FSO2Ph; o-C16H33S, Ph; p-C16H33SO2, Ph; p-C16H33SO2, m-FSO2Ph; p-C16H33, Ph; p-C16H33, m-FSO2Ph; m-C16H33O, t-butyl; p-C16H33SO2, ClCH2; p-C16H33N(CH3)SO2, ClCH2; p-C16H33, ClCH2; and m-C16H33O, ClCH2.  These compounds are colour couplers (see Division G2).  m-Fluorosulphonylbenzoyl, p-fluorosulphonyl benzoyl, p-cyanobenzoyl and pivaloyl isocyanates are prepared from silver cyanate or isocyanate and the corresponding acyl chloride.
Patent GB-233106-A (GB)
Title: Improvements in or relating to transporters and conveyors
IPC: B65G67/60
Filed: 1924-03-28
Abstract: 233,106. Scrutton, C. A. March 28, 1924. Staiths; terminals for overhead ways; platforms. - A gangway 1 is fitted with a runway 8 along which goods carriers 9 are conveyed by an endless chain 11, the carriers being transferred between the hold and the upper end of the runway by a crane or other hoisting device. As shown in Fig. 1, the upper end of the gangway rests upon the deck, but in another form the gangway is supported in a tower movable along the quay and overhangs the hold. In both forms the upper end of the gangway is horizontal and telescopic. In unloading, a number of loaded carriers 9 are plactd upon a bar 15 which is then raised until it engages guides 17 and finally fills the gap A in the runway. The carriers are then moved along the runway by hand or otherwise until picked up by the endless chain. The lower end of the gangway is hinged at 4 to a fixed structure 5 on the quay, and the carriers run off to fixed runway tracks leading to the sheds. The upper end of the gangway may be branched. A loading platform 20 may be provided which may be raised or lowered to any deck level in the hold.
Patent GB-919204-A (GB)
Title: Process for the purification of diels-alder adducts of hexachlorocyclopentadiene andmaleic anhydride
Filed: 1960-03-07
Abstract: Resinous polyesters are obtained by esterifying with a suitable polyhydric alcohol or mixture of alcohols the purified Diels-Alder product obtained by reacting hexachlorocyclopentadiene with maleic anhydride and removing the chlorocarbon impurities by adding to the crude adduct a material which will form a constant boiling mixture with the chlorocarbon impurities, distilling off the constant minimum boiling mixture and recovering substantially pure Diels-Alder product (see Group IV(b)).  The esterification of such a purified Diels-Alder adduct with additional maleic anhydride and propylene glycol to form a resin is described.ALSO:A process for the purification of the crude Diels-Alder adduct obtained by reaction of hexachlorocyclopentadiene with maleic anhydride comprises adding to the crude adduct a material which will form a constant minimum boiling mixture with the chlorocarbon impurities, distilling off the constant minimum boiling mixture and recovering substantially pure Diels-Alder product. Azeotroping agents specified include maleic anhydride, optionally in the presence of a glycol e.g. ethylene glycol in proportion sufficiently low that substantial esterification of the adduct does not occur and water.  Maleic anhydrides employed as azeotroping agent may be recycled in a continuous process.  The product may be esterified with a suitable mono- or polyhydric alcohol or mixture of alcohols (see Group IV(a)).  Examples are furnished.
Patent GB-172253-A (GB)
Title: Improvements in or relating to devices for supplying lubricating oil to internal combustion engines
IPC: F16N37/00
Filed: 1921-03-14
Abstract: 172,253. Rose, W. F. M. March 14, 1921. Funnels.-A funnel for use for introducing lubricating oil into the crank case of an internalcombustion engine comprises a hopper a of rectangular section and an offset delivery pipe b. The hopper is fitted with a sliding cover c and a strainer d. One side of the hopper is secured to the engine by a bolt passed through an opening e. The end of the delivery pipe b may be tapered.
Patent GB-569856-A (GB)
Title: Automatically actuated candlesticks
IPC: F21V35/00
Filed: 1943-05-20
Abstract: 569,856. Candlesticks. POWERS, J. M. May 20, 1943, No. 8020. [Classes 75 (i) and 75 (iii)] A candlestick for church altars &c. comprises a tubular false candle housing 3, an electric motor 13 feeding a candle 5 upwards in the housing 3 into cantact with a guard 64 as it is consumed and a candle lighting and extinguishing assembly 43 operated by an electromagnet 41. The assembly 43 comprises two levers 50, 51 mounted on a fixed pin 52 carrying at their upper ends lighting and extinguishing members 58, 59 and at their lower ends slotted to engage rollers 49 carried by a slide member 45 which is movable downwards against the resistance of a spring 48 by the electromagnet 41. The member 58 contains an electrically heated igniting element 61. The candle is supported by a cup 36 on a bracket 34 carrying a nut 33 engaging a threaded shaft 31 geared to the electric motor 13. In operation after the closure of the main switch 87 a push button switch 89 is operated to supply current through a transformer 90 to the igniting element 61 and the electromagnet 41 for a sufficient time to melt the wax and ignite the wick. Extinction of the flame is effected by closing momentarily the switch 89. The candle is fed upwards by the motor 13 when it has burnt away sufficiently for the candle guard 64 to engage contacts 74, 75 in the motor circuit. When the bracket 34 has reached its top position a switch 78 is operated to break the motor circuit. A switch 93 is then operated manually to reverse the motor and the bracket moves downwards to its lowest position when the motor circuit is broken at a switch 79. A new candle is then inserted and switch 93 is reversed. In a modification the lighting and extinguishing means are mounted on the candle guard.
Patent GB-914006-A (GB)
Title: Methyl methacrylate coating compositions
IPC: C09D133/12
Filed: 1961-03-06
Abstract: A coating composition comprises solvent, and, as the essential film-forming constituents, (A) 100 parts by weight of at least one copolymer of (1) from 95 to 40 parts by weight of methyl methacrylate and (2) from 5 to 60 parts by weight of at least one ester of methacrylic acid with a monoether of ethylene glycol, free of ethylenic unsaturation, having 3 to 10 carbon atoms, and (B) from 5 to 70 parts by weight of lacquer-grade nitrocellulose. A preferred composition comprises 90 to 60 parts by weight methyl methacrylate and 10 to 40 parts by weight of the methacrylic acid ester or esters. The copolymer may be a copolymer of methyl methacrylate and butoxyethyl methacrylate, or of methyl methacrylate, butoxyethyl methacrylate and ethyl methacrylate, or of methyl methacrylate and phenoxyethyl methacrylate.  Specified esters include also methoxyethyl-, ethoxyethyl-, propoxyethyl-, butoxyethyl-, hexoxyethyl-, heptoxyethyl-, octoxyethyl-, 2-ethylhexoxyethyl-, toloxyethyl- and cyclohexoxyethyl methacrylates and mixtures thereof. In general, up to 20% by weight of other copolymerizable monomers can be copolymerized with the essential constituents of the copolymers used.  Such copolymerizable materials include, in addition to ethyl methacrylate, noted above, butyl methacrylate, ethyl acrylate, styrene, methacrylic acid, and dimethyl itaconate.  Up to 20% by weight, based on the weight of copolymers and nitrocellulose of other film-forming materials may be present, e.g. cellulose acetate butyrate, cellulose acetate propionate, and small portions of conventional methyl methacrylate lacquers.  Specified plasticizers include benzyl butyl phthalate, butyl cyclohexyl phthalate, dibutyl phthalate, triphenyl phosphate, 2-ethylhexyl benzyl phthalate, di(cyclohexyl) phthalate and mixtures thereof. From 10-60%, preferably 25-45%, by weight of plasticizer, based on the total weight of copolymers and nitrocellulose, may be present.  Specified solvents include toluene, xylene, ethyl acetate, butyl acetate, acetone, methyl isobutyl ketone, butanol, isopropanol and other aliphatic alcohols, cycloaliphatic and aromatic hydrocarbons, esters, ethers and ketones.  The preferred pigment is carbon black, in an amount of 1-10, especially 2-6, parts per 100 parts of film-forming materials and plasticizers, but metal oxides, hydroxides, chromates, silicates, sulphides, sulphates, carbonates, metal flake pigments and organic dyes and lakes thereof may be used.  Examples include titanium dioxide, aluminium flake, copper naphthenate and Indulin B dye.
Patent GB-374892-A (GB)
Title: Improvements in or relating to the manufacture of paper and paste-board
IPC: D21F9/00
Filed: 1931-03-17
Abstract: 374,892. Two-ply paper and cardboard. CASANOVAS, E., 7, Lauria, Barcelona, Spain. March 17, 1931, No. 8148. Convention date, March 24, 1930. [Class 96.] Two-ply papers or cardboards are made by combining the pulp webs of a Fourdrinier machine 1 and of a cylinder machine 7 the felt 8 of which applies its web at 9 and passes with it over suction boxes 3 and through the first press rolls 4, the felt being washed &c. in its return run. In an example, wrapping paper &c. is made from pulp of fair quality from the Fourdrinier machine and of inferior quality, e.g. mechanical wood pulp from the cylinder machine.
Patent GB-628860-A (GB)
Title: Improvements in float-actuated valves for flushing cisterns or the like
IPC: F16K31/26
Filed: 1948-03-03
Abstract: 628,860. Fluid-actuated valves. KNOWLES, J. D. March 3,1948, No. 8176/47. [Class 135] In a float-actuated, cistern supply valve, the valve casing 1 has a valve 13 interposed between the inlet 2 and the. outlet 12, so that the pressure of the water supply helps to maintain the valve 13 on its seat. A float arm 6, pivoted between lugs 5 on the casing 1, has a shorter arm extending into a slot-in the valve 13, which has a conical portion provided with a head 14a and a resilient washer 14. Grooves 16, 17 are provided in the outlet and valve head respectively. The inlet 2 has a restricted passage 9 which may be varied by fitting different nipples 20. The casing 1 has a detachable cap 11 for access to the chamber 10. Water, lead shot or the like may be inserted in the float 8 through a cap 18, or an adjustable weight may be arranged on the arm 6 to vary the buoyancy. A silencer pipe 15 is fitted to the outlet 12. In a modification, the silencer pipe 15, the grooves 16, 17 and the cap 18 are omitted, and the nipple 20 is replaced by a fixed orifice.
Patent GB-609562-A (GB)
Title: Improvements in or relating to synchronous motor electric clocks and the like
IPC: G04C15/00
Filed: 1946-03-16
Abstract: 609,562. Toothed gearing. BROWN, T. A., and PERIVALE CLOCK MANUFACTURING CO., Ltd. March 16, 1946, No. 8204. [Class 80 (i)] [Also in Groups XVIII and XXXV] The hands 50, 54 of an electric clock are driven through two or more epicyclic gear trains arranged in cascade on a common spindle 26 by a synchronous electric motor. Each gear train comprises a gear wheel 28, having internal teeth 30, journalled on the spindle 26, a fixed coaxial ring of teeth 32, an eccentric member 34 free to rotate on the spindle, and a twin inner wheel 38 rotatable on the eccentric member 34, and having two sets of teeth 40, 42 meshing simultaneously respectively with the internal gear ring 28 and the fixed ring of teeth 32, the number of teeth of the gear ring differing from those of the fixed ring. The final driven gear wheel is connected to the spindle 26, which forms the minute hand spindle by a slip-spring coupling 46. The usual 12 : 1 gearing 44 is provided between the two hands. In a modification the eccentric 34 is driven from a driven shaft of a synchronous electric motor, parallel to the spindle through toothed gearing.
Patent GB-388582-A (GB)
Title: Improvements in and relating to brackets and guides for hand rails
IPC: B60N3/02
Filed: 1932-03-19
Abstract: 388,582. Brackets. SUNSALOON BODIES, Ltd. and PEARSON, D. A., Castleford Road, Sparkhill, Birmingham. March 19, 1932, No. 8209. [Class 52 (v).] A bracket in the form of a sleeve for holding a hand-rail on a passenger vehicle or the like is formed with a chambered bore lined with packing material, and is adjustably attached to a fixed base. The hand-rail b is gripped by the sleeve a which fits the rail at its ends f but is chambered and filled with felt or waximpregnated canvas e so that it can pass over curved parts of the rail and yet grip the straight parts. It has a spigot g attached by a screw j to a fixed base c. The hand-rail b may be fixed to the bracket-sleeve a by means of a screw n and sleeve-nut o, Fig. 3. The spigot g and its seating may be conical instead of cylindrical. A bracket a for use at the end of the bar may be closed at one end to form a cap Fig. 4 (not shown). The stem q may be extended to form a cranked neck, Figs. 5 and 6 (not shown).
Patent GB-1429738-A (GB)
Title: Internal chuck for bobbins
IPC: B65H75/24
Filed: 1974-02-22
Abstract: 1429738 Expandable mandrels; ratchet clutches; friction clutches DR OTTO C STRECKER KG and BRUDERHAUS MASCHINEN GmbH 22 Feb 1974 [22 Feb 1973] 8216/74 Headings F2U and F2C A bobbin chuck comprises chuck jaws 5 which are expanded by the outer ends of thrust arms 4 as the arms pivot about points S close to the axis of a central member 1, each jaw being actuated by a pair of thrust arms coupled to each other by an annular cage 3, the recesses for the arms of a first chuck jaw being axially offset relative to those of a second chuck jaw. The arms may be provided with ball pivots inserted into their inner ends. Fig. 3 shows the form of thrust arm suitable for both directions of rotation two ball pivots being necessary one for each direction. The jaws may be held together by garter springs or individual springs between the jaws. The cage may be locked by a ratchet pawl (9), Fig. 2 (not shown), and released manually by depressing a pin (10).
Patent GB-565826-A (GB)
Title: Improvements in or relating to methods of and apparatus for cleaning gas
IPC: B01D45/10
Filed: 1943-05-24
Abstract: 565,826. Air cleaners. LISTER & CO., Ltd., R. A., and DARBY, N. W. May 24, 1943, No. 8225. [Class 8 (ii)] Gas is cleaned by first causing acceleration and reversal of flow, then flow over a surface wetted with liquid with change of direction, and finally passage through a gauze filter. The gas enters between the lid of the apparatus and an outer wall 4, the space between the two being constricted ; heavy dust particles are thrown into an annular vessel which may have a corrugated bottom 7, and the gas flowing in reversed direction passes with a further change of direction over a wetted surface 11 over which oil &c. is. drawn by the inducing action of the gas. The liquid is carried down a flange 11b of the surface into an oil container below the level of a weir 10 which permits only clean oil to be drawn over the surface. The gas is deflected on to the oil by a down-turned extension 7a of the bottom 7 and oil is further removed by the flange 9 of an inlet cone 8 which leads the gas through a gauze filter 14. The inlet is surrounded by a double-walled U- section 16 containing sound-proofing material which may also be contained in a hollow in the lid. The cone 8 forming an extension of the outer wall, and the lid, are removably held on the outlet section by a nut on a rod 19. The gas after passing over the surface 11 may be freed of oil by a separator with a sloping grid.
Patent GB-1184881-A (GB)
Title: Improvements relating to Tyre Moulding Presses
Inventor: ANTRAIGUE ROGER
IPC: B29C33/76
Filed: 1968-02-20
Abstract: 1,184,881. Moulding tyres. R. ANTRAIGUE. 20 Feb., 1968 [22 Feb., 1967], No. 8234/68. Heading B5A. A tyre vulcanizing and moulding press includes a tyre shaping diaphragm 30 clamped at its edges to a housing 11 having a cavity 40 of the same surface area as the diaphragm. The cavity is connectable to a vacuum or high temperature pressure fluid source via a line 41. When connected to the former, the diaphragm is drawn into close contact with the cavity wall, which is undulating, and when to the latter, e.g. steam, it is forced from the housing into the tyre 21 to effect the moulding operation. Air between the diaphragm and tyre is exhausted via a gap 82. The housing is supported on a flange 51 and comprises annular halves bolted together. In the construction of Fig. 4 the diaphragm housing 63 is associated with a cover 64 comprising a base 90 with a deformable membrane 91 against which part of the diaphragm is forced when high temperature pressure fluid is fed to the housing via passages 691, 69<SP>2</SP> and 69<SP>3</SP>. In order that the diaphragm may be used with differently dimensioned tyres, the membrane 91 may be distorted by pressure fluid supplied through line 93.
Patent GB-275517-A (GB)
Title: Finger envelope and stamp damper
IPC: B43M11/04
Filed: 1927-03-25
Abstract: 275,517. Buss, K. March 25, 1927. Damping - appliances, hand. - In damping devices of the kind comprising an airtight water reservoir a connected at the lower end to a receptacle b containing spongy material, the bottom f of the sponge receptacle is positioned at a higher level than the bottom e of the water reservoir, and the connection between the bottom f, e, is slanted so as to produce an opening g in the reservoir wall sufficiently large to permit of easy replenishment of the reservoir while keeping a low level of water in the receptacle b. The device may be formed with a leg h, or the base of the, whole device may be level, the interior of the sponge receptacle being then so shaped that the bottom f is higher than the bottom e.
Patent GB-541080-A (GB)
Title: Improvements in and relating to gas-producing plant
IPC: C10J3/00
Filed: 1940-05-09
Abstract: 541,080. Gas-producers. PARKINSON & COWAN (GAS METERS), Ltd., and GREEN, K. R. May 9, 1940, No. 8343. [Class 55 (i)] To prevent particles of solid fuel from being carried from the fuel bed of a gas producer into the gas outlet pipe, the latter is of annular form a and is provided with a lower annular slot c and with cylindrical shield members d, e which extend downwards below the slot. These members are spaced apart to a distance a little more than the diameter of the pipe a, and this distance increases as the distance from the pipe a increases.
Patent GB-767124-A (GB)
Title: Method of and means for magnetically separating solid magnetic particles from a fluid current
IPC: B03C1/12
Filed: 1954-03-22
Abstract: 767,124. Magnetic separators. JONES, G. H. March 21, 1955 [March 22, 1954], No. 8371/54. Class 117 A device for separating solid magnetic particles from a gas or liquid comprises a body portion 10 of magnetic material provided with a flange 18 and bored at each end to receive a pair of hollow shafts 12, 13 on which are threaded end members 16, 17. Permanent magnets 20-23 of annular form are mounted between the end members and the flange, and each magnet is provided with a grooved annular pole piece 26, an intermediate pole piece 28 being located between each pair of poles 26. Filling pieces 32 of non-magnetic material, e.g. wood or rubber, are provided between the magnets and the body 10 which has radial passages 34 connecting the gaps between the magnet poles with passages 33 of the shafts 12, 13. The separator is rotated and the fluid to be treated is delivered at low pressure into the gaps via the passages 33, 34, the magnetic particles being carried upwardly on the magnet poles and the liquid flowing out of the separator. Any non-magnetic matter adhering to the magnetic particles is removed by jets of air or water issuing from nozzles 38 Fig. 2 (not shown), after which the cleaned particles, in passing stronger jets from nozzles 40 Fig. 2 (not shown), are removed for collection. A modification Figs. 3, 4 (not shown) has an electromagnet of which the coil is energized via slip-rings and brushes. According to the Provisional Specification, the separator may comprise a cylindrical permanent. The magnetic-particle carrying fluid may be directed from a nozzle inwardly into the annular gap -in which case the separator shaft may be solid.