baber/WOPTO huggingface dataset:
Patent GB-197667-A (GB)
Title: Means for ascertaining the leakage past the piston of a doubleacting internal combustion engine
IPC: F02B3/06
Filed: 1923-05-01
Abstract: 197,667. Nederlandsche Fabriek van Werktuigen en Spoorwegmaterieel Genaamd Werkspoor. May 13, 1922, [Convention date]. Piston.-In order to ascertain if the piston packing of double acting engines is fluid tight, a groove 3 is formed in the piston and a port 6 made in the middle of the cylinders length. The port is opened on the working strokes by a valve 9 and any serious escape of gas will be made evident. Stop valves 7 and 12 are also provided.
Patent GB-1418661-A (GB)
Title: Hopper installation
IPC: B65G69/18
Filed: 1972-03-14
Abstract: 1418661 Shoots ASSOCIATED PORTLAND CEMENT MFGS Ltd 14 March 1973 [14 March 1972] 11777/72 Heading B8S A hopper installation for use in the handling of particulate material containing a fine dust fraction. Fig. 1, comprises an elongated intake section 2 which open into a lower discharge chamber 3 around whose periphery are located outlet ports 5 which are connectad by pipes 9 to a fan 10 and a dust filter 17 so that air is withdrawn from the inner wall area of the chamber 3 to produce an air flow pattern surrounding a neutral or negative pressure inner central zone 4 within which a grab or bucket G, which is lowered through the intake section 2, is discharged. A grid 16 through which material is free to fall to the bottom outlet of the chamber 3, may be used to actuate a visual or audible signalling device, when the bucket hits it, so that the operator knows when to release the material. In a second embodiment, Fig. 4, the dust laden air which is withdrawn from the ports 5 is recirculated from the fan 10 via inlet ports 6 into the chamber 3, the inlet ports 6 projecting downwardly into the chamber 3 whereby a torroidal pattern of air flow is induced within the chamber 3.
Patent GB-1378211-A (GB)
Title: Diallyl phthalate precopolymers and their preparation
IPC: C08F10/00
Filed: 1972-03-14
Abstract: 1378211 Diallyl phthalate/ethylene precopolymers OSAKA SODA CO Ltd 14 March 1972 [15 March 1971] 11792/72 Heading C3P A precopolymer is derived from at least one diallyl phthalate monomer selected from diallyl ortho-, iso- and terephthalate, and ethylene, the molar ratio of diallyl phthalate units to ethylene units being from 0À0254 : 1 to 2À26 : 1. The molecular weight (number average) of the polymer is preferably from 2000 to 10,000 and the bromine value is preferably 16-61À5. It also preferably forms a true solution in benzene at 50‹ C. at 30% concentration based on the weight of benzene. The copolymers are prepared by polymerizing the diallyl phthalate monomers with ethylene at an elevated pressure with an initiator and stopping the polymerization before gelling occurs and when the requisite molar ratio is attained. The monomer mixture may contain 55-95 w.t per cent of diallyl phthalate monomer(s) to 45-5 wt. per cent of ethylene, based on the total monomer weight. Polymerization temperatures and pressures of 50-150‹ C. and 30-1000 kg./cm.<SP>2</SP> gauge are specified. The prepolymers may be cured after coating on substrates such as steel, by heat or radiation.
Patent GB-118053-A (GB)
IPC: B60C7/14
Abstract: 118,053. Barlow, E. M. Jan. 25, 1918. Metallic spring bodies and cores.-A spring tyre consists of two or more rows of separate springs b each having a bowed end secured over the flat tailpiece of the adjacent spring by rivets c. The rivet-holes in the bowed ends are elongated to allow of circumferential play in running.
Patent GB-1248887-A (GB)
Title: Improvements relating to dip coating apparatus
Inventor: FARAGO GEORGE
IPC: B05C3/09
Filed: 1970-03-12
Abstract: 1,248,887. Coating apparatus. G. FARAGO. 12 March, 1970 [12 March, 1969], No. 11879/ 70. Heading B2L. Apparatus for coating metal objects 33 with viscous liquid comprises a stationary coating vat 21 connected by a flexible pipe 15 to a movable supply chamber 16, the arrangement being such that as the supply chamber 16 rises under the action of a piston and cylinder 31 the vat 21 fills and as the supply chamber is lowered at a uniform controlled relatively slow rate the coating vat is emptied. The lid of the coating vat has metal holders 36 which with the lid will conduct heat from a heating element 22A to treat the coated object. A refrigerated coil 25 may also be applied. The lid of the vat is separated from the walls by a heat insulating gasket 23B. Alternative embodiments include an infra red heating lamp or inductive heating coil and the supply tank may be raised or lowered by means of an electric motor.
Patent GB-674890-A (GB)
Title: Treating gelatin capsules
IPC: A61J3/07
Filed: 1949-05-04
Abstract: 674,890. Gelatine capsules. DEHN, S. G. (Scherer Corporation, R. P.). May 4, 1949, No. 11924/49. Class 81 (i). [Also in Group V] Gelatine capsules are made from an aqueous composition containing gelatine and glycerine in ratios ranging from 0.5 to 1.5 and are tumbled, for at least two minutes, with an emulsion containing 20 to 65 per cent of aqueous formaldehyde, of at least 10 per cent strength, dispersed, e.g. by lanolin or lecithin, in a waterimmiscible liquid, e.g. olive oil, a light mineral oil or glycerine dioleate. The capsules may then be dried to a moisture content below that before tumbling and may be stored in a dry atmosphere. It is stated that the capsules, under humid conditions, can reabsorb moisture without swelling unduly and without losing resiliency.
Patent GB-742811-A (GB)
Title: Improvements in the manufacture of highly polymeric polymethylene terephthalates
Inventor: FLETCHER NORMAN
IPC: C08G63/86
Filed: 1953-04-30
Abstract: In making highly polymeric polymethylene terephthalates by polymerizing under subatmospheric pressure a bis-(hydroxyalkyl) terephthalate formed by ester interchange between a glycol and an alkyl ester of terephthalic acid, a salt of calcium, strontium or barium which is soluble in the reaction mixture is used as a catalyst for the ester interchange process.  Suitable salts are those of weak acids, e.g. the acetate, malonate, adipate, benzoate, phosphite or arsenate.  The amount of catalyst used should be such as to give a product containing less than 0.1 per cent of metal.  The catalyst is preferably added as a fine powder dispersed, or dissolved in glycol. Other catalysts, e.g. lead oxide or antimony compounds such as antimony oxide, antimony acetate, potassium antimony tartrate or potassium pyroantimonate may also be added.  Examples employ ethylene glycol and dimethylterephthalate with antimony trioxide as the polycondensation catalyst and use as ester interchange catalysts: (1) calcium acetate; (2) calcium acetate with titanium dioxide as a delustrant; (3) barium acetate; (4) barium phosphite; (5) barium arsenate; and (6) strontium acetate.  According to the Provisional Specification the oxide or hydroxide of the alkaline earth metal may be used as the catalyst.
Patent GB-520876-A (GB)
Title: Improvements in illuminated advertising signs
IPC: G09G3/00
Filed: 1939-04-21
Abstract: 520,876. Signs. AGULNIK, W. April 21, 1939, No. 11968. [Classes 3 (i) and 3 (ii)] An illuminated advertising sign comprises one or more illuminating elements 2 mounted within a dishshaped casing 1, the light passing out partly through a flat display transparency 4 located at the mouth of the casing 1 and centrally thereof and partly through a surrounding light filter 5. The filter 5 is of contrasting colour, and extends from the transparency 4 to the casing 1, and the rays passing therethrough are reflected forward by the curved rim of the casing 1. The filter 5 may be rotated by a motor or by convection currents, and may carry a transparency 7 or skeleton letters, &c. An opaque stationary sector, or a curved reflector, may conceal the letters or transparency 7 during part of its revolution. The lamps 2 may be differently coloured, and may be switched on as desired. Specification 458,077 is referred to.
Patent GB-302537-A (GB)
Title: Improvements in mathematical drawing instruments
IPC: B43L13/06
Filed: 1928-04-26
Abstract: 302,537. Hudson, H. T. April 26, 1928. Protractors. - An instrument particularly intended for finding and laying out courses on a chart comprises a circular protractor B connected by a parallel-motion linkage L to a straight-edge &c. A.
Patent GB-405492-A (GB)
Title: Process for increasing the moistening power of mercerising solutions
IPC: D06M11/38
Filed: 1933-04-26
Abstract: 405,492. Mercerizing processes. ERBA FABRIK CHEMISCHER PRODUKTE SPEZIALITATEN FUR DIE TEXTILINDUSTRIE, 46, Breitensteinstrasse, Zurich, Switzerland. April 26, 1933, No. 12187. Convention date, April 27, 1932. [Class 15 (ii).] In order to increase the moistening power of mercerising solutions, phenols, including substituted phenols and terpineol are added thereto. Naphthenic acids, naphthenic alcohols or any aliphatic, aromatic or hydroaromatic compounds known to increase the moistening power of mercerising solutions may also be added. In examples, the following mixtures are added to mercerising solutions : (1) cresol and terpineol ; (2) cresol, Yarmor pine oil, and methylcyclohexanol; (3) cresol, Yarmor pine oil, and naphthenic acids. Specification 385,977 is referred to.
Patent GB-570438-A (GB)
Title: Improvements relating to machines having opposed synchronised free pistons
IPC: F02B71/00
Filed: 1943-07-27
Abstract: 570,438. Free-piston gas generators. PESCARA, R. P. July 27, 1943, No. 12234. Convention date, Aug. 4, 1942. [Class 7 (i)] A. machine with opposed free pistons, such as a gas generator comprising a compressor which supplies air to the internal-combustion power cylinder driving its piston, the combustion products and excess scavenge air being utilized for power production, is synchronized by means including crossed levers, one of which is at right angles to the piston axes at the outer 'dead-point and the other is at right angles at the inner dead-point, the first lever-actuating devices, e.g. for detecting an abnormal expansion stroke and the second lever-actuating devices such as a fuel pump or a compression stroke indicator. The synchronizing means shown comprises rods 9, 9a connected through levers 10, 11 and links and connecting rods 13, 13a, and rods 9<1>, 9<1>a similarly connected through levers 10', 11<1>, links and connecting rods ; the rods 9, 91 are joined to a compressor piston 4 integral with a motor piston 1, and the other rods 9<1>, 9<1>a are joined to a bridge 1b provided on the opposed power piston 1a. The rods 9 are provided with shoes 9b slidable in guides 9c, and these guides may have holes through which the pin connecting the rod 9 to its shoe and synchronizing lazy-tongs may be removed. The lever 10 is rigidly connected to a rod 14 carrying a cam 14a actuating the pump 15 and a safety device 16, while the lever 11<1> is connected rigidly,to a shaft 14<1> operating an inner dead-point safety device 17 through a cam 14<1>a. The devices 16, 17 are provided with valves 18 actuated by the cams through tappets and permitting compressed air from a reservoir to flow from chambers 18a to a pipe 18b connected through a branch 19b with a chamber containing a piston 19 on the pump tappet, the pump being thus put out of action during abnormal strokes. Specification 525,274 is referred to.
Patent GB-846456-A (GB)
Title: Means for securing at one end in gas-tight manner reaction tubes exposed to high temperatures
IPC: F16L49/00
Filed: 1959-04-10
Abstract: 846,456. Pipe joints. DEUTSCHE GOLDUND SILBER-SCHEIDEANSTALT VORM. ROESSLER. April 10, 1059 [April 10, 1958], No. 12267/59. Class 99(1). A reaction tube of ceramic material is secured in a furnace by a tube head 1 which receives one end 3 of the tube by means of a gas-tight packing 8 and which rests on a counter-support 7, the upper and lower surfaces 6, 2 of the tube head being curved and the counter-support 7 having curved surface parts to correspond to the surface 2 of the tube head. A packing ring 4, e.g. of polytetrafluoroethylene, acts as a seal between the tube head 1 and a head section 9 which incorporates a duct for gas discharge. The head 1 may also be spherical or with laterally curved surfaces.
Patent GB-592129-A (GB)
Title: Improvements in or relating to percussion tools
IPC: B25D3/00
Filed: 1945-05-17
Abstract: 592,129. Nail punches. VOIZOT, R. May 17, 1945, No. 12399. Convention date, March 22, 1943. [Class 89 (iii)] [Also in Group XXII] A nail or other punch of the type comprising a thin rod provided with a percussive head, has means for adjusting the position of an external sleeve with respect to the rod during working. The rod a extends from a screw-threaded portion b which forms part of the percussive head c. A sleeve d fits over the rod a and has at its end a close-fitting bore e to form a bearing or guide for the rod. The upper part of the sleeve d fits on the percussion head c, and is provided with an internally threaded portion g which co-acts with the screw-thread b. The distance which the rod a projects from the sleeve may thus be adjusted. In a modification, the screw-threaded portion is replaced by a helical groove, or a tapping may be made in the head c and the sleeve threaded to enter it. In a further modification, the rod slides freely in the sleeve against a spring, or friction means, such as a braided metal sheath, or a rubber washer may be provided to brake the relative sliding. The tool may be made sufficiently strong to be used as a punch for perforating sheet metals or other materials.
Patent GB-477605-A (GB)
Title: Manufacture of chromable dyestuffs of the triarylmethane series
IPC: C09B11/08
Filed: 1936-05-01
Abstract: Dyestuffs of the triarylmethane series are prepared by condensing one molecular proportion of 3- or 5-hydroxybenzene-1 : 2 : 4-tricarboxylic acid or the anhydride thereof with two molecular proportions of an aromatic meta dihydroxy compound or a monoalkyl ether derivative thereof having a reactive hydrogen atom. Alternatively a benzoylbenzoic acid prepared by condensing one molecular proportion each of the 3- or 5-hydroxy benzene-1 : 2 : 4-tricarboxylic acid or anhydride and the aromatic meta dihydroxy compound or monoalkylether thereof is condensed with one molecular proportion of an aromatic metadihydroxy compound or monoalkyl ether thereof.  The resulting dyestuffs may be brominated or after chromed, and they dye animal fibres from an acid bath yellow or red shades. The dyestuffs are also suitable for chrom-printing on cotton.  In examples: (1) 5-hydroxy-1 : 2 : 4-trimellitic anhydride is condensed with resorcinol; the resulting dyestuff dyes animal fibres clear yellow tints; by bromination in glacial acetic-acid the dyestuff dyes wool orange yellow to reddish yellow tints: (2) 5-hydroxytrimellitic anhydride is condensed with b -resorcyclic acid and with 4-chlor resorcinol in the presence of zinc chloride: (3) 5-hydroxy trimellitic anhydride is condensed with 1 : 3-dihydroxy naphthalene: (4) 5-hydroxytrimellitic anhydride is condensed with pyrogallol; the dyestuff may be brominated: (5) the benzoylbenzoic acid derived from 5-hydroxybenzene-1 : 2 : 4-tricarboxylic acid and resorcinol is condensed with resorcinol and brominated; chlor, brom or methyl resorcinol or resorcinolmonomethyl ether may be used instead of resorcinol: (6) the benzoyl benzoic acid used in the previous example is condensed with b -resorcyclic acid in the presence of concentrated sulphuric acid, whereby a sulphonated dyestuff is obtained; the same benzoyl benzoic acid is condensed with 1 : 3-dihydroxynaphthalene, phloroglucinol and with 4-chlorresorcinol, using p-toluenesulphonic acid as condensing agent: (7) a dibrominated benzoylbenzoic acid derived from 5-hydroxy benzene-1 : 2 : 4-tricarboxylic acid is condensed with pyrogallol.
Patent GB-125183-A (GB)
IPC: H04M1/34
Abstract: 125,183. Automatic Telephone Manufacturing Co., Siemens Bros. & Co., Western Electric Co., Moore, G. W., and Collyer, J. E. March 6, 1918. Impulse transmitters. - The cam disk of an impulse transmitter is placed is such a position that it can be changed readily for another giving different characteristic impulses without affecting the other parts of the transmitter. The governor is driven from the main spindle through a spiral spring operating as a clutch in the manner described in Specification 14614/13, and the cam teeth are formed to give a considerable lost motion at the beginning of the return motion. The spindle 2, Fig. 2, is retained in position axially by a collar 2<1> and a plate 2<11>, while the cam disk 6, Figs. 1 and 2, is mounted detachably at the rear end of the spindle 2. The pawl 7 is normally held radially to the cam disk and is provided with an ebonite stud 13 adapted to engage a spring contact 14. The cam teeth are long and when the cam is rotated by the finger-plate 4 the lower end of the pawl rides over the tops of the teeth and does not descend far into the spaces. When the plate 4 is released, the lower end of the pawl 7 descends into the space and is operated by the tooth face to actuate the contact 14, thereby providing a long interval between the release of the plate 4 and the beginning of the first impulse. Contact springs 16, 17 and 18 are controlled by a stud 19 on the cam disk 6. In the modification shown in Fig. 3, the cam 6 engages a projection 26 on the pawl 17.
Patent GB-127455-A (GB)
Title: Improvements in or relating to Travelling Trunks and the like.
Inventor: BROWN JOHN HENRY
IPC: A45C5/02
Filed: 1918-08-01
Abstract: 127,455. Brown, J. H. Aug. 1, 1918. Corner joints and strengthening-pieces; straps, bands, and battens, strengthening.-The edges and corners of trunks &c. are reinforced, and the joints rendered water-tight, by a projecting buffer attached to a flange c, Fig. 4, secured between the trunk body and the batten j. The buffer comprises one, or, as shown, two strips g of leather, raw hide &c., covered by a piece h of leather, &c., and stitched to the flange e. In the form shown in Fig. 1, the buffer comprises a piece a of leather &c. folded upon itself and stitched together, the tubular fold c being filled, if desired, with a core d of rope, cord, hemp, &c.
Patent GB-857982-A (GB)
Title: Improvements in and relating to air heaters
IPC: F24H3/06
Filed: 1959-04-14
Abstract: 857,982. Air heating stoves. BAIER, L., BAIER, W., BAIER, W., BAIER, W., and SCHLUMPRECHT, E., [trading as BAIER KOMM.-GES., W.]. April 14, 1959 [April 16, 1958], No. 12603/59. Class 64(1) In an air heating stove in which hot gases from a liquid-fuel fired combustion chamber 20 are drawn by a suction fan 12 through heat exchanger elements 19 over which air to be heated is forced by a blower 10, and in which the blower 10 and exhaust suction fan 12 are mounted on a shaft 11 driven through a vee-belt 13 by a motor 2 driving also the fuel pump 4 coaxial therewith, the fuel pump and motor are so mounted on a rocker plate 15 pivoting about a fulcrum 14, that failure of the vee-belt, due e.g. to breakage, will allow the rocker plate to move and to thereby contact a motor cut-out switch 16. The motor itself may be provided with an overload cut-out switch. Specifications 857,981 and 857,984 are referred to.
Patent GB-486167-A (GB)
Title: Improvements in and relating to ornamental capsules for bottles
IPC: B65D41/62
Filed: 1937-05-03
Abstract: 486,167. Making aluminium bottle capsules. HELWERT, G., and BRUCHNER, (nÚe HERRNBERGER), M. May 3, 1937, No. 12610. [Class 83 (ii)] [Also in Group XVII] An ornamental or protective preshaped bottle capsule made of aluminium has a drawn lateral wall which is appreciably thinner than the end wall. The drawn lateral wall may taper in thickness from the end wall to the open end. The end wall may be 0À15 mm. thick and the drawn lateral wall 0À04 mm. to 0À075 mm. thick, e.g. 0À06 mm. The cap is pressed into capsule shape from a circular disc of soft annealed aluminium, the pressing being performed without appreciable alteration in the thickness, the lateral wall is drawn out over a spindle by means of drawing rollers, and the capsule is finally softened by annealing.
Patent GB-919469-A (GB)
Title: Chain bending machines
IPC: B21L1/00
Filed: 1961-04-07
Abstract: 919,469. Making chains. ESSER, P., [trading as MEYER ROTH & PASTOR]. April 7, 1961 [April 14, 1960], No. 12638/61. Class 83 (4). A chain link-bending machine includes wire supply and cutting means, a mandrel having a groove corresponding to the chain link to be bent and divided in the plane of the groove, two parallel bending jaws movable perpendicular to the length of wire and tangentially to the groove in the mandrel and two side jaws movable towards one another tangentially to the groove in the mandrel, the bending jaws being movable into a position lying in the path of the side jaws and retractable therefrom. A length 12 of wire, severed from a supply by a knife 11, is pressed by a clamping member 13 against a grooved mandrel 14, which is split on the mid-plane of the groove so that the parts can be separated for removal of the formed link. Two crank or cam-operated bending jaws 17, grooved at 20, 21, are then moved to bend the ends 33 of the wire about the mandrel 14 so as to lie parallel to one another. The junction of the grooves 20, 21 in the jaws 17 is rounded off or provided with a grooved roller. The jaws 17 are then withdrawn slightly and grooved side jaws 28 are moved in to bend the ends 33 about the mandrel 14.
Patent GB-964713-A (GB)
Title: Improvements relating to imparting steering movements to twin axle bogies of trailers or semi-trailers
IPC: B62D13/02
Filed: 1961-04-07
Abstract: 964,713. Steering vehicles. W. HILDEBRANDT. April 7, 1961 [April 7, 1960], No. 12658/61. Heading B7H. A steering movement of a twin-axle bogie of a road trailer or semi-trailer is induced by the swinging movement of the vehicle into or out of a curved path, the swinging movement controlling the steering movement of the bogie as a unit and of the axles of the bogie oppositely relatively to each other, the two movements being made interdependent so that the steering force is allowed to distribute itself between the two steering movements in dependence upon the misalignment experienced in taking up or leaving the curved path. As shown, the trailer chassis 1 is mounted upon the upper ring 8 of a turn-table, the lower ring 7 of which is supported by the mounting 9 of a rocker frame 10 to which the axle mountings 13 and 18 of the bogey are connected by turn-tables 13<SP>11</SP>, 13<SP>1</SP> and 18<SP>11</SP>, 18<SP>1</SP> respectively. The lower ring 7 of the turn-table 7, 8 is connected with an internally-toothed annulus 4 of an epicyclic gear comprising a planet carrier 3 rigidly connected by an arm 2 to the vehicle chassis, a sun gear 5 and planet pinions 6 meshing with both the internally-toothed annulus 4 and the sun gear 6 to which is rigidly connected a crank 11 connected by a pivot-pin 12 to an arm 14 extending rearwardly from the front axle mounting 13 of the bogey. An arm 17 extending forwardly from the rear axle mounting 18 of the bogey is pivoted at 16 to the arm 14. The construction is such that as the vehicle takes a turn as shown in Fig. 2, the bogey mounting 9 is constrained to move through the annulus 4, planet pinions 6, carrier 3 and arm 2. The movement of sun gear 5 acts through crank 11 upon the arms 14 and 17 to provide relative movement of the axles to the position shown in Fig. 2. In modifications, Figs. 4 and 5, the epicyclic gear is replaced by spur gears 20, 20<SP>1</SP>, 21, 21<SP>1</SP> and bevel gears 22,23,24,25 respectively.