baber/WOPTO huggingface dataset:
Patent GB-433849-A (GB)
Title: Improvements relating to mechanical weft feeler mechanism for looms
IPC: D03D51/34
Filed: 1935-03-01
Abstract: 433,849. Weft feeler arrangements. MANUFACTURE DE MACHINES TEXTILES MATEX SOC. ANON., 6, Rue PoincarÚ, Mulhouse, Haut-Rhin, France. March 1, 1935, No. 6518. Convention date, March 2, 1934. [Class 142 (iii)] Relates to devices of the penetrating and impinging member type. The impinging member i is adjustably mounted on a rod c and the penetrating member comprises a rod d furnished with a head h which is guided by the member i. The head h is forked and is formed with blunted or rounded webs h<1>, h<2>, one of which contacts with the bare spindle when the shuttle is almost empty even though the other should be opposite a groove, (thus ensuring when required the necessary operative relative movement between the parts c, d). The rod c is guided in a support a fixed to a shaft b and is furnished with a crossbar or yoke e acted upon by light springs kl, k<2>, whilst the rod d is adjustably connected to a bell-crank lever g controlled by a spring j on a rod fixed thereto. The lever g is furnished with a hook f<1>, which engages a rod l to stop the loom when the weft is substantially exhausted, but otherwise is rocked and does not engage the rod. The webs h<1>, h<2> may be offset.
Patent GB-925773-A (GB)
Title: Improvements in or relating to the treatment of foodstuffs
IPC: A47J19/02
Filed: 1961-02-23
Abstract: 925,773. Juice extractors. R. LANZANOVA. Feb. 23, 1961 [March 15, 1960], No. 6632/61. Class 28 (2). In a centrifugal action pulper for extracting juice by pulping fruit, vegetables or the like, the fruit is fed through a hopper 21 in a cover 20 of a stationry casing 16, passes down a tube 22 and is macerated, whilst held by teeth 23 at the lower end of the tube 22, by co-operating teeth 13 projecting upwardly from the solid base 11 of a rotating container 10, the underside of which base has pins, not shown, which snap into spring-loaded holes in a disc 3 rotated by a shaft 2 connected to an electric motor housed in the base 1. Extracted juice is centrifuged through a perforated band 14 in the side of the container 10, which carries a flange 15 to prevent splashing, and flows via a trough 17, outlet 18 and shoot 19 to a collecting vessel. The cover 20 houses a spring-loaded braking plunger 25 engaging flange 15 when depressed and a pivoted arm 9 secures the cover 20 in position.
Patent GB-660987-A (GB)
Title: A sealing device between the bowl and the stationary inlet or outlet pipe of centrifugal separators
IPC: B04B11/02
Filed: 1948-03-03
Abstract: 660.987. Stuffing-box substitutes. AKTIEBOLAGET SEPARATOR. March 3, 1948 [March 3, 1947], No. 6673/48. Class 122(v) The connection between a stationary inlet or outlet pipe and a rotary centrifugal separator 2 is sealed by means comprising a sealing ring 5 contacting a sealing disc 3 on the separator and an elastic packing ring 7 arranged between the sealing ring or a holder 6 therefor and the stationary part, a cylindrical clearance being provided between the sealing ring or the holder and the stationary part to permit rocking, axial and lateral movement of the sealing ring. At the outlet shown in Fig. 1 the elastic packing, holder and sealing ring are pressed together by a member 8 and spring 9. In a modification, Fig. 2 (not shown), the faces of the member and holder in contact with the packing are chamfered to press the packing against the interior of an outlet pipe. In further modifications, Fig. 3 (not shown), the holder is pressed on to the sealing ring by a spring, and the packing is either gripped in a recess in an outlet pipe or pressed by a second spring on to a shoulder on the interior of the pipe. In still further modifications, Figs. 4, 5 (not shown), the holder is dispensed with, the sealing ring is spring-pressed, and the packing has U- or L-shaped cross sections. Specification 608,808 is referred to The Specification as open to inspection under Sect. 91 states that the U- or L- shaped packings may be of metal. This subject-matter does not appear in the Specification as accepted.
Patent GB-1131084-A (GB)
Title: Dyeing process for synthetic polyamide fibres
Inventor: GUNTHARD JACQUES
IPC: C09B1/28
Filed: 1966-02-16
Abstract: 1,131,084. Anthraquinone dye. SANDOZ Ltd. 16 Feb., 1966 [5 March, 1965; 18 March, 1965], No. 6780/66. Heading C4P. [Also in Division D1] In Example 1 the disperse dye 1-(2<SP>1</SP>-ethoxycarbonyl - ethylamino) - 4 - cyclohexylaminoanthraquinone is prepared by treating 1-amino- 4 - cyclohexylaminoanthraquinone with acrylic acid amide and sulphuric acid to give 1-(2<SP>1</SP>- carboxyethylamino) - 4 - cyclohexylaminoanthraquinone which is then esterified with ethanol and 100% sulphuric acid.
Patent GB-1482893-A (GB)
Title: Case for a digital watch
IPC: G04B39/00
Filed: 1976-03-01
Abstract: 1482893 Watch cases CHOW MAN-NING 1 March 1976 06839/76 Heading G3T A case for a digital watch has a slice 1 of natural or artificial stone attached to its front face, the slice having an aperture through which the digital display may be seen. As described the display is of liquid crystal or l.e.d. type. A transparent member e.g. of gemstone may be set in the aperture, and/or an outer watch glass may be provided. The stone slice may be of jade and smooth, carved or faceted, and a second aperture may be provided for a date display.
Patent GB-1282704-A (GB)
Title: Furodioxoles
Inventor: ROBINSON ALFRED GREEN
IPC: C07H9/04
Filed: 1970-02-12
Abstract: 1282704 Furo-dioxole alcohols EASTMAN KODAK CO 12 Feb 1970 [12 Feb 1969] 6841/70 Heading C2C Furo-dioxole compounds of the general formula wherein R<SP>1</SP> and R<SP>2</SP> are the same or different, C 1-10  alkyl groups, are prepared by reacting glyoxal with an aldehyde of the general formula R 1 (R 1 )CH-CHO in a ratio of at least 2 moles of aldehyde per mole of glyoxal and in the presence of an aqueous base at 10 to 50 C. The aldehyde and glyoxal, may be heated with 1-15 wt. per cent of K 2 CO 3  or Na 2 CO 3 . In the examples the compound tetrahydro-2-isopropyl- 5,5 - dimethylfuro - [2,3-d] - 1,3 - dioxol - 6 - ol is prepared. 3,3 - Dimethyl - 1,2,4 - butanetriol is obtained by hydrogenation of the furo-dioxole compound over Raney nickel.
Patent GB-198772-A (GB)
Title: Improvements in electricity meters
IPC: G01R11/30
Filed: 1922-03-08
Abstract: 198,772. Amberton, R. March 8, 1922. Electromagnetic motor meters; special quantities, registering. -A motor electricity meter in which the armature rotates on noload is provided with a direct connection between the rotary element and the counting-mechanism, so that the meter puxposely registers continuously at a certain predetermined rate when no load is taken on the consumer's side. Known methods for compensating for friction are employed, but the means are so arranged or constructed to produce a driving- torque of magnitude large in comparison with friction, so that there is continuous registration. In an induction meter, asymmetrical electric or magnetic systems may be employed, or use may be made of the ordinary shading devices. In the alternating current meter shown in Fig. 4, the shunt and series cores are mounted on one side of a centre plate 21, the cores 25, 26 with their series windings being asymmetrically mounted in respect of the core 23 carrying the shunt winding. An adjusting screw 28 is provided for regulating the no-load speed. A separate shunt coil in series or parallel with the main shunt winding may be employed. In a commutator meter, as shown in Fig. 3, the armature is provided with two separate windings, the load winding 2 connected to a commutator and joined across the shunt 8, and a winding 3 connected to a commutator 5 joined across the resistance 12 in series with field windings when electromagnets instead of permanent magnets are used. A resistance may be placed in series with the brushes 10, 11, and this resistance, and also the resistance 12, may be adjustable to regulate the no-load speed. In reading the meter, the registration due to the no-load rotation may be deducted from the total reading, or the no-load rotation may be adjusted so as to register meter rent, or a smaller charge per unit made for the total units registered.
Patent GB-782254-A (GB)
Title: Improvements in or relating to landmine
IPC: F42C7/04
Filed: 1956-03-05
Abstract: 782,254. Land mines. MALM, K. O. B. March 5, 1956 [March 3, 1955], No. 6896/56. Class 9(2) A land mine comprises a hemi-spherical casing 2 containing an explosive charge 1 and rotatable in a bowl 3 having a cylindrical flange 4, which supports the mine when laid. A coaxial tube 5 houses a detonator 6 spaced from a spring-stressed firing pin 7 mounted in a piston 8 and held by balls 9, the piston having a pointed end bearing against the bowl 3. An elastic covering 12, e.g. rubber, encloses the mine. A load pressing on the charge 1 causes the casing 2 to tilt in its spherical bearing, so that the piston is pressed upwards and the balls 9 are freed, thus releasing the pin 7, which is driven upwards by its spring to fire the mine. In a modification. the firing pin is mounted in a Belleville washer and presses against a ball in a socket in the bowl 3. When the casing 2 is tilted, the ball pushes the pin against the detonator. To put the mine "at safe," the detonator may be screwed outwards, and a lid may be provided to protect the mine during transport, the lid having a central aperture through which the detonator may be inserted before final removal of the lid. The casing 2-and bowl 3 may be made of suitable plastics, other parts being of non-magnetic material, except the pin 7 which is steel.
Patent GB-496855-A (GB)
Title: Improvements relating to toy clockwork mechanism
IPC: A63H29/04
Filed: 1938-03-05
Abstract: 496,855. Speed governors. MULLER, H. March 5, 1938, No..6946. Convention date, Jan. 31. [Class 57] [Also in Group XV] A toy clockwork mechanism has a speedregulating device comprising a rotary member with a crank or eccentrically mounted member rotating in a gap in a pivotally mounted control lever, and in which the distance between the pivot of the control lever and the rotary member can be varied by swinging or sliding one of them. A spring motor 2 drives the wheels 6 of a vehicle and also a regulator shaft 12 which has a crank 13 at one end rotating in a gap 15 of a lever 14 pivoted at 17 to another lever 16 pivoted at 18. The distance between the crank 13 and the pivot 17 is varied by a lever 20 pivoted at 21 and having a slot 19 engaging the lever 16, and moving over a scale 22. With the lever 16 in its bottom position, the crank 13 rotates freely in the gap 15, the lever 14 remaining still with its lower end pressed against the casing. In any midway position the crank oscillates the lever 14, the speed of the regulator shaft being thus reduced. In the top position of the \ever 16 the crank 13 is unable to rotate. The gap 15 in the lever may be of various forms such as a slot of uniform width. In a modification, Fig. 10, an eccentrically mounted rotary member 13 is pushed by a regulating rod 16 against a spring into the gap 15 of a control lever, shaped as shown. In a further modification as shown in Fig. 11, the regulator shaft 12 carries a toothed wheel 27 driving a pinion 29 on a shaft 28 carrying a crank 13 rotating inside the gap 15 of a lever pivoted at 26, and resting by its own weight on the crank 13. The position of the shaft 28 is regulated by a lever 16.
Patent GB-595638-A (GB)
Title: Improvements in or relating to bottles for dispensing liquids
IPC: B65D1/06
Filed: 1945-03-20
Abstract: 595,638. Bottles for dispensing liquids. PATRICK, C. H. March 20,1945, No. 6978. [Class 125 (i)] [Also in Group XVIII] Bottles for dispensing liquids such as chemists supplies are provided with a recess c in the base having a hole through which passes a flanged threaded sleeve f secured by a locknut j. The hole is normally closed by a screw-plug l or cap m, the recess enabling the bottle to stand upright as usual. For dispensing, a delivery tap is fitted to the bottle outlet, the bottle inverted and the plug l or cap m removed so that the hole in the base acts as a vent. A hand-operated air pump may be attached to the hole to assist in the dispensing of viscous liquids, or a stirrer passed through the hole if the contents of the bottle require stirring before dispensing. The shape of recess approximates .to the cross-sectional shape of the bottle.
Patent GB-525944-A (GB)
Title: Improvements in or relating to photographic developers
IPC: G03C5/305
Filed: 1939-03-03
Abstract: 525,944. Photographic development. RADIO CORPORATION OF AMERICA. March 3, 1939, Nos. 7062, 7063 and 15031. Convention dates, March 17, 1938, April 30, 1938 and April 30, 1938. [Class 98 (ii)] A photographic developing composition esspecially for use with sound track films comprises a developing agent, a soluble salt of either aluminium, chromium, tin, zinc, or lead, and sufficient alkali to maintain in solution the precipitate tending to be produced on addition of alkali to the salt of a metal of the above group. Suitable developing agents are hydroquinone, glycin, metol, p-phenylenediamine, bromohydroquinone, toluhydroquinone, catechol, chlor- and dichlor-hydroquinone, p-benzylaminophenol, pyrogallol, amidol, p-dimethylaminophenol, p-aminophenol, phenylhydrazine, hydroxylamine hydrochloride, and p-dibenzylaminophenol. Other substituted benzene derivatives may be used. The metallic salts may be potassium alum or the sulphate, chloride, or bromide of aluminium. The alkali present may be sodium hydroxide or carbonate. A bromide and a sulphite may be included. In developing films, the quantity carried over into the washing bath may be adjusted by an air jet exactly to balance the addition of developer necessary to compensate for exhaustion. The developed film is partly hardened during development.
Patent GB-356663-A (GB)
Title: Improvement in electric discharge devices
IPC: H01J19/82
Filed: 1930-03-04
Abstract: 356,663. Thermionic valves. DUBILIER CONDENSER CO. (1925), Ltd., Ducon Works, Victoria Road, North Acton, London.-(Assignees of Dalpayrat, H. F. ; 502, West 151st Street, New York, U.S.A.) March 4, 1930, No. 7065. Convention date, March 9, 1929. Void [Published under Sect. 91 of the Acts]. [Classes 39 (i) and 40 (v).] A valve has a cathode 4, Fig. 1, a control electrode 5, an anode 7, and an auxiliary electrode 14 mounted outside of the main disharge path between the cathode and anode but close to the cathode so as to remove space charge; the valve is used in a receiving or amplifying circuit. The auxiliary electrode preferably follows closely the shape of the cathode and is arranged within the cathode, the edges being bent over and the central portion removed. In the arrangement shown in Fig. 4, a perforated cathode 16 is heated by a wire 18 contained in an insulating block 17 which is slightly conductive at high temperatures, and the auxiliary electrode consists of a ribbon or wire 19 threaded through the block : the effect of the electrode 19 may be increased by connecting it to an auxiliary grid 20 outside the cathode. In the amplifier shown in Fig. 5, the auxiliary electrode 14 is connected through a winding 29 coupled with the output transformer to a potentiometer 25 shunting the battery 24. The connections of the winding are such that the variations applied to the electrode 14 are in opposite phase to those in the output circuit, so that an increased current is obtained in the output circuit 32. The connection of the winding 29 may be reversed so as to provide a stabilizing effect. In the receiver shown in Fig. 7 having 3 H.F. amplifying valves A, B, C, a detector D, and 2 L.F. amplifiers E, the aerial 43 is coupled with the input circuit 47, 48a, through an intermediate circuit 44, 45, 46 which is connected with the auxiliary electrode of the valve A. The auxiliary electrode 66 of the valve B is connected with an intermediate tuned output circuit 64, 65. The auxiliary electrode 80 of the detector valve D is connected with the output secondary 79. The auxiliary electrode 92 of the first L.F. amplifier E is connected with a winding 87 providing a back E.M.F. to the output transformer 86 so as to prevent resonance. In another arrangement (Fig. 8, not shown) the H.F. amplifiers are resistancecoupled.
Patent GB-840708-A (GB)
Title: Improvements in photoelectric cells
IPC: H01L21/00
Filed: 1953-03-13
Abstract: A method of forming a uniform highly sensitive layer of lead sulphide crystals comprises adding thiourea to a highly alkaline lead salt solution, allowing the mixture to stand beyond the period of normal automatic seeding, and immersing a pre-seeded plate in the mixture with at least one surface positioned to receive precipitating lead sulphide crystals unaided by gravity. A solution of lead nitrate and sodium hydroxide may be mixed with a thiourea solution (which preferably contains some sodium sulphite) to form a mixture which is allowed to stand for 5 to 30 minutes until it darkens and a pre-seeded glass plate is then immersed in the mixture at an angle so that the lower surface receives the precipitated crystals unaided by gravity.  After receiving the coating the plate is washed in water and dried.  The process works at any temperature between 5 DEG  C. and 40 DEG  C., and is preferably carried out at 23 DEG  C. Specifications 840,709 and 840,710 are referred to.
Patent GB-1494042-A (GB)
Title: Artificial leg
IPC: A61F2/60
Filed: 1976-02-12
Abstract: 1494042 Artificial legs A BLAKE 12 Feb 1976 [20 Feb 1975] 7101/75 Heading A5R An artificial leg 10 comprises a thigh portion 11, a shin portion 13, supports 14, 15 extending respectively from the thigh portion and the shin portion which pivot about rivets 16, and a compression spring 21 extending between a bracket on the thigh portion and a flanged strut 18 which is attached to a U-shaped bar 26 on the shin portion. A foot 24 of the leg is provided with springs 22 formed from resilient tubular members. The strut 18 is threaded through an extension of U-shaped bar 26 and slides in a tubular member 20 depending from the bracket on the thigh portion.
Patent GB-977553-A (GB)
Title: Improvements in hydroxy-polymer-solutions
IPC: C08F28/00
Filed: 1961-02-27
Abstract: A hydroxy copolymer solution from which a thermoset solid may be made without the necessity for liberating solvent is prepared by copolymerizing (a) a monoethylenic alcohol, a hydroxyalkyl vinyl sulphide or a hydroxyalkyl ester of a C2-C4 unsaturated acid, the alkyl group of the sulphide or ester having not more than 10 carbon atoms, and (b) a monoethylenic compound copolymerizable therewith in a non-volatile solvent in which the polymer is soluble and substantially non-reactive with at polymerization temperatures, and which reacts with the polymer and/or a cross-linking agent therefor at curing temperatures, said solvent being a C1-C19 carboxylic acid, a C10-C18 monohydric alcohol, a polyhydric alcohol having a molecular weight below 1,000, or a mono- or poly-epoxide, the solvent having a viscosity not exceeding 130 cps. at the reaction temperature, a melting point below 150 DEG C. and a boiling point above 150 DEG C. Monomers (a) specified are allyl, crotyl, methallyl, chlorallyl and methylcrotyl alcohols, hydroxyethyl, hydroxypropyl, hydroxybutyl and hydroxyoctyl vinyl sulphides, hydroxyethyl and hydroxypropyl acrylates, methacrylates and crotonates and hydroxyalkyl maleates and fumarates, which are copolymerized with monomers such as styrene, alkyl styrenes, halostyrenes, vinyl and vinylidene chlorides, fluoro-, bromoand iodo-ethylenes, esters of vinyl, isopropanyl, allyl, methallyl, ethallyl, propallyl and higher alcohols, esters of acrylic, methacrylic, crotonic, tiglic, haloacrylic, cyanoacrylic, maleic fumaric and glutaconic acids, acrylonitrile, methacrylonitrile and crotononitrile, acrylic methacrylic, 3-butenoic, angelic and tiglic acids and acrylamide, methacrylamide and N-substituted derivatives thereof.  Polymerization solvents specified are benzoic, butyric, capric, caproic, lauric, myristic, palmitic, succinic, glutaric, azelaic, sebacic, isosuccinic, tetrahydro-o-phthalic, hexahydrophthalic and hexachloro-endomethylenetetrahydrophthalic acids, decyl, lauryl myristyl, stearyl, octadecyl, linolyl, farnesol and oleyl alcohols, glycerine, trimethylol propane, ethylene, propylene, diethylene, triethylene, tetraethylene, dipropylene, and tripropylene glycols, polyethylene glycol, polypropylene glycol, 1, 5-pentanediol, styrene oxide, glycidol, phenyl glycidyl ether, butyl glycidyl ether, glycidyl acetate and benzoate, the diglycidyl ether of bisphenol, 3, 4-epoxy-6-methylcyclohexylmethyl-3, 4-epoxy-6-methylcyclohexane carboxylate, epoxy resins of the type described in Specification 679,536, epoxidized oils and epoxidized polybutadiene.  When copolymerizing acid monomers, e.g. methacrylic acid, the corresponding hydroxypropyl ester may be formed at the same time by carrying out the reaction in the presence of propylene oxide. In an alternative embodiment of the invention the copolymer is prepared separately, and then dissolved in the reactive solvent.
Patent GB-706337-A (GB)
Title: Improvements in electric resistance welding machines
Inventor: GORDON SAMUEL HUNTER
IPC: B23K11/04
Filed: 1951-03-29
Abstract: 706,337. Electric welding. RESISTANCE WELDERS, Ltd. March 17, 1952 [March 29, 1951], No. 7330/51. Class 83 (4) The moving head of an automatic flash-butt resistance welding machine is actuated by liquid pressure produced by a unit A during the flashing period and by a unit B, brought into operation when the head reaches a predetermined position, during the butting period, a metering valve 38 being interposed between the head and he unit A which is isolated from the latter when the unit B is in operation. Both units are of the air-liquid pressure intensifier type and are fed through solenoid-operated valves 54, 55 from a compressed air supply 56, the unit B producing a greater pressure than the unit A. The head is connected to a ram 18 which is normally held in its retracted position in a cylinder 17 by a spring 82. One end of this cylinder is closed by a plate 81 while the other is fitted with a bonded rubber diaphragm 77 forming a fluidtight seal. Fluid enters the liquid cylinder 13 of the unit A through ducts 34, 33 from a reservoir 12 and, when the valve 54 is operated, is forced through the valve 38 and ports 37, 36 and 35 of the unit B to the cylinder 14 of that unit, and passages 46, 47 to the ram cylinder 17. Actuation of the unit A also lifts a spring-loaded valve 39 establishing communication between the passages 46, 47 and cutting off the cylinders 14, 17 from the reservoir 12 with which they are normally connected. A switch, closed when the head reaches a predetermined position, operates the valve 55 to cause a downward movement of the plunger 29 of unit B and a rapid advance of the ram, the unit A being isolated by the movement of the port 36 which is formed in the plunger 29. This rapid advance causes the forging of the work-pieces, the welding current being switched off. When the weld is completed, the valves 54, 55 are again operated to allow the plungers of the intensifiers to be moved upwardly by springs 52, 53. To effect pre-heating of the work before the welding operation, the ram 18 is moved to and fro either by manual operation of a switch controlling the solenoid of the valve 54 or by controlling that solenoid with a timing device in combination with a voltage sensitive relay, the timer being cut out by the highfrequency current produced when flashing commences. The cylinders 13, 14 and 17 are bored in a solid block to which the air cylinders are secured by bolts or studs.