baber/WOPTO huggingface dataset:
Patent GB-748324-A (GB)
Title: Improvements in or relating to brush-holders for electrical apparatus
IPC: H01R39/415
Filed: 1954-05-07
Abstract: 748,324. Springs. ABBEY, A. (Lermont, B). May 7, 1954, No. 13466/54. Class 108 (3). [Also in Group XXXV] A brush for electric apparatus is urged by a ribbon spring having a substantial radius of curvature, the spring having convolutions at one or both ends and a substantially straight portion between the ends, and said portion lying in a recess permitting this spring portion to curve. Fig. 2 shows a spring 37 with its free end capable of being coiled and with its other end 38 anchored to a support 29. Fig. 6 shows a U-shaped springs 37a having convolutions 39a at both ends which are accommodated in cavities 53 in a casing 51. A further spring mounting arrangement is shown in Figs. 18, 20, the spring 37e has one end secured to a mounting plate 107.
Patent GB-828139-A (GB)
Title: Improvements in free piston gas generators
IPC: F02B71/06
Filed: 1958-04-29
Abstract: 828,139. Free-piston gas generators. FIAT, SOC. PER AZIONI. April 29, 1958 [May 3, 1957], No. 13611/58. Class 7(1) A variable scavenging pressure freepiston gas generator includes an outwardly arranged compressor for the air compression to take place on the expansion stroke in the engine cylinder and an underpressure cushion on the opposite side of the compressor piston and the ratio of the geometric stroke Cg and the engine stroke cm is such that the ratio # of the air available for combustion and the air necessary for combustion (stoichiometric air) is lower than 1.2 to 1 at the maximum admissible stroke of the piston Cg and any scavenging pressure and Cg is 1.8 at least. In the gas Cm generator shown in Fig. 1 a channel 10 is bored in each compressor cylinder and connects in the neighbourhood of the inner dead point of the compressor piston 11 the underpressure cushion 12 and the compression chamber 13. The conduit 16 interconnects the two underpressure cushions 12. Fig. 5 shows an opposed piston gas generator equipped with positive cushions in which the minimum pressure equals the suction pressure of the compressor. The conduit 19 balances the cushions 17. Pressure adjustment of the underpressure cushion can be obtained by limiting its maximum pressure by a pressure valve with or without an adjustable opening pressure.
Patent GB-361262-A (GB)
Title: Improvement in emulsions and process for preparing same
IPC: C09K23/00
Filed: 1931-05-08
Abstract: Aqueous emulsions of oils, fats or waxes, particularly for use as or in making salad dressings, butter substitutes, salves or lotions, are prepared by the use, as emulsifying and stabilizing agent, of metarabic acid.  For example, to a 5 per cent aqueous solution of metarabic acid one to four or more parts of oil or liquefied fat may be added slowly with stirring; the resulting emulsion may be diluted with water or aqueous solutions.ALSO:Aqueous emulsions of oils, fats or waxes, for use as or in making salad dressings, butter substitutes, salves, or lotions are prepared with the aid of metarabic acid.  For example to a 5 per cent solution of the acid 1-4 or more parts of oil or liquified fat may be added with stirring and the product diluted with water or aqueous solutions.
Patent GB-1291865-A (GB)
Title: Thioethers derived from fumaric acid
Inventor: HAZARD RICHARD
IPC: C07D335/06
Filed: 1969-02-12
Abstract: 1291865 (Phenylthio)-fumaric acids FISONS PHARMACEUTICALS Ltd 2 Feb 1970 [12 Feb 1969] 13721/72 Divided out of 1291864 Heading C2C The invention comprises compounds of formula wherein P, Q, R and T are each H, halogen, C 1-10  alkyl, OH, alkoxy, hydroxyalkoxy, alkoxyalkoxy, acetoxy, CO 2 H (or its ester), NH 2 , alkylamino, dialkylamino, alkenyl, C 7-10  aralkyl, Ph, NO 2 , alkenoxy or acyl, or an adjacent pair of P, Q, R, T form a 5- or 6-membered carbocyclic or heterocyclic fused ring and M is H or alkali metal, provided that (i) not all of P, Q, R, T are H; (ii) Q is not Cl when P, R, T are all H; (iii) P is not Me when Q, R are both H and T is MeO. These compounds are prepared by reacting the corresponding thiophenol (or its alkali metal salt) with acetylenedicarboxylic acid, or an ester, or salt thereof, or a monohalofumaric acid or a precursor thereof, under alkaline conditions, and where necessary hydrolysing the resulting product.
Patent GB-1489736-A (GB)
Title: Production of dialkyl carbonates
IPC: C07C68/06
Filed: 1976-04-05
Abstract: 1489736 Dialkyl carbonates ANIC SpA 5 April 1976 [9 April 1975] 13753/76 Heading C2C Dialkyl carbonates or alkylene glycols are prepared by reacting an alcohol with a cyclic carbonate  in which R and R<SP>1</SP> can be the same or different and represent hydrogen, alkyl or alkoxy, in the presence of an organic Lewis base. The base may be triethylamine, dimethyl benzylamine, triethanolamine, tributylamine and a basic resin with tertiary aliphatic amine groups. Examples describe the preparation of dimethyl carbonate and ethylene and propylene glycols.
Patent GB-457259-A (GB)
Title: Change-over switch, particularly for the changing-over of high-frequency coils for radio sets
IPC: H01H19/62
Filed: 1936-05-15
Abstract: 457,259. Multi - position switches. LANGLOTZ, G., 4, Kohlergasse, Ruhla, Thuringia, Germany. May 15, 1936, No. 13777. [Class 38 (v)] A multi-position switch for radio sets comprises a casing made up from a series of sections a of transparent insulating material provided with end plates l for enclosing the switch parts the whole being bolted together to form a unit. The casing elements a are notched to provide passage for contact springs b, c which are held in position by the casing bolts. A cam shaft e of polygonal crosssection is supported in bushings in the end plates and carries a set of cams d having a similar bore 80 as to permit angular adjustment. Each cam comprises a central disc d and a series of lobes h connected to the disc by a reduced portion i so that any lobe not required may be broken off.
Patent GB-737610-A (GB)
Title: Improvements in or relating to cloches, plant and flower protection devices and the like
IPC: A01G13/04
Filed: 1953-05-18
Abstract: 737,610. Plant protectors. ATKINSON, J. Aug. 12, 1954 [May 18, 1953], No. 13813/53. Class 6 (2). [Also in Group X] A plant protector comprises at least two separate inverted U-shaped wire frame members 1, 2 having integral connecting means 3, 4 to maintain the members in sepal able relationship, so that when their free ends are anchored, a distended bag-like cover is supported by them. In Fig. 1, the member 1 has an eye 3 which engages a U-shaped depression 4 in the member 2, and a template 5 of metal or paper assists in the positioning of the members into the ground. When of light construction, the ends of the members may be tied around the stem of a plant. In Figs. 4 and 5, the member 1 is flattened at 7 and a hole 8 with side slots is formed which secures in position the central part of the other member 2 which includes two pairs of dimples 9, one pair of which is passed through the slots and the member 2 is then turned to prevent their separation. Alternatively each member has a U-shaped depression such as 4 arranged in opposite directions so that in position the depressions are engaged.
Patent GB-626789-A (GB)
Title: Improved screening drum for draining suspensions
IPC: B01D33/00
Filed: 1947-05-23
Abstract: 626,789. Filters. ABBEY, A. (Svenska Cellulosa Aktiebolag). May 23, 1947, No. 13942. [Class 46] A screening drum for fibrous suspensions and intended to rotate in one direction while being partially immersed comprises an outer perforated cylindrical shell 5, Fig. 1, an inner imperforate shell 6, a plurality of longitudinal partitions 7, Fig. 2, between the shells, and discharge ducts 9 communicating between the cells thus formed and the interior of the drum, the discharge ducts being bent backwards in relation to the direction of rotation of the drum and being brought together at one end of the drum to form a plurality of channels located beside one another in the axial direction of the drum. In the embodiment shown, sixteen cells 8 are provided and the discharge ducts are arranged in four channels, four ducts being allotted to each channel. One discharge duct may be common to two or more cells. The channels may be shared symmetrically 'between both ends of the drum, in which case the inner shell 6 tapers from the middle in both directions. A wire screen may be fixed on the outer shell 5.
Patent GB-1501467-A (GB)
Title: Blank for a drawer
IPC: B65D6/10
Filed: 1975-04-04
Abstract: 1501467 Sliding drawers VISCOUNT PLASTIC PRODUCTS PTY Ltd 4 April 1975 [4 April 1974] 13943/75 Heading A4B [Also in Division B8] A drawer is formed from a one-piece moulded plastics blank 2 comprising an open topped boxlike structure having integral side walls 6 and base 4 and four panels 10 hingedly connected to the top on the respective side walls 6 so that the panels 10 may be folded to overlie the side walls 6 and form outer side walls of the drawer. Each panel 10 is connected to a flange 8 formed on each side wall 6 at a V-notched portion 12 providing the hinge connection. Each panel 10 has a flange 14 with a projection 16 which is a snap fit with a projection 18 on each side wall 6. The panel flange 14 may serve as a drawer runner. Channels 20 in opposed panels 10 may provide drawer guides. The panels 10 have mitred end edges and edges of adjacent panels at each corner have interengaging tongues and slots.
Patent GB-1270251-A (GB)
Title: Wheel cleaner
Inventor: MAY FRANK HERBERT
IPC: B60S3/04
Filed: 1968-03-22
Abstract: 1,270,251. Vehicle wheel cleaning apparatus. SAUNDERS TRANSPORT Ltd. 14 April, 1969 [22 March, 1968], No. 14045/68. Heading B7J. An apparatus for cleaning vehicle wheels comprises at least one pair of rollers 16 on which the road wheels of a vehicle may rest, and which are mounted for free rotation on a main frame 10, 11, that rests or is sunk in the ground, the wheels being cleaned, on rotation, by centrifugal action. The four rollers 16 are mounted in pairs by stub shafts 15 in bearings 14 secured to the frame sides 11. Each roller has a flange 17 at each end to prevent the vehicle wheels sliding laterally off the apparatus. To facilitate driving on and off the apparatus, each roller is fitted with a locking means comprising a pin 18, Fig. 3, mounted on the frame 11 to slide in the axial direction of the roller and engage in one of a series of holes 20 in the flange 17, operated by a cranked counterweighted hand lever 19 pivoted at 21 having a depending portion 22 equipped with a U-shaped fork piece 23 that engages a cross-bar 24 on the end of the pin 18. The counterweight 26 serves to hold the pin 18 against the flange 17 if it is not opposite one of the holes 20. In an alternative arrangement, Fig. 5 (not shown), the weight 26 may be replaced by a spring (28), a pawl and ratchet (29), (32) being provided to hold the lever 19 against the action of the spring. To facilitate passage of vehicles over the apparatus when it is inoperative, cross rails 35 are provided and inter-roller bridges may be placed between each pair of rollers, Figs. 6, 7, 8 (not shown).
Patent GB-1139505-A (GB)
Title: A process for the production of 17-‡-monoesters of 17-‡-hydroxy-20-keto-steroids
Inventor: WEIR NIALL GALBRAITH
IPC: C07J7/00
Filed: 1965-06-23
Abstract: 1,139,505. 17α - Monoesters of 17α - hydroxy- 20-keto-steroids. GLAXO LABORATORIES Ltd. 14 June, 1966 [23 June, 1965], No. 14091/65. Heading C2U. 17α-acyloxy-20-keto-21-unsubstituted pregnanes are prepared by heating the corresponding 21-iodo compounds with a tertiary amine or a dialkyl sulphoxide, or by heating the corresponding 21-hydrocarbonsulphonyloxy or 21- bromo compounds under similar conditions but with the addition of a metal iodide. An inert solvent may also be present. The acyl group is derived from an alkyl, cycloalkyl, cycloalkylalkyl or aralkyl group. The 21-bromo starting material may be prepared from the 21-hydrocarbonsulphonyloxy compound and an alkali metal or alkaline earth metal bromide under anhydrous conditions in a solvent, and the 21- iodo starting material may be prepared similarly using an alkali metal or alkaline earth metal iodide, or it may be prepared from the 21-bromo compound using the same reagent. The process is particularly applicable to the preparation of 17α-monoesters of 21-deoxybetamethasone and 21 -deoxydexamethasone. 21-Hydrocarbonsulphonyloxy starting materials are prepared from the 21-ols and hydrocarbon sulphonyl halides. 21 - Hydroxy - 16 - # - methyl - 17α - propionyloxypregna - 1,4,9(11) - triene - 3,20 - dione is prepared by reacting 17α,21 - dihydroxy - 16# - methylpregna - 1,4,9(11) - triene - 3,20 - dione with triethyl orthopropionate to give 16#- methyl - 17α,21 - (1<SP>1</SP> - ethyl - 1<SP>1</SP> - ethoxymethylenedioxy) - pregna - 1,4,9(11) - triene - 3,20 - dione and hydrolysing this. 9α - Fluoro - 11#,21 - dihydroxy - 16α - methyl - 17α - propionyloxy - pregna - 1,4 - diene - 3,20 - dione is prepared similarly via dexamethasone 17α,21-ethyl orthopropionate.
Patent GB-290578-A (GB)
Title: Improvements in and relating to cushioning devices for reciprocating sieves and other apparatus
IPC: B07B1/40
Filed: 1928-05-14
Abstract: 290,578. Preparation Industrielle des Combustibles. May 14, 1927, [Convention date]. Balancing reciprocating parts of machinery.- In a device for balancing the inertia forces of two oppositely-reciprocated sieves or other masses of the kind in which a piston connected to one member compresses a gas in a cylinder 16, Fig. 4, connected to the other, the two ends of the cylinder are connected by a bye-pass pipe 26 of small gauge and either helical or provided with wings for cooling. The cylinder comprises two end portions 19, 20 which are at an angle to, and of less cross-section than, the main portion, and in which the gas is confined by a liquid directly acted on by the piston. In the application to sieves, two superposed sieves 1, 2, Fig. 1, of equal mass are suspended by ash supports 12, 13 and reciprocated in opposite directions by pairs of ash connecting-rods 3, 5 connected by cross-pieces 14. 15, Fig. 3. The cross-piece 15 carries the cylinder 16, Fig. 4, with the two branches 19, 20 of smaller crosssection. The piston 16 is connected to the crosspiece 14 and compresses the air at the upper end of the branches 19, 20 through the medium of a fluid such as glycerine. A regulating cock 27 may be provided in the bye-pass pipe 26.
Patent GB-497835-A (GB)
Title: A process for the separation of metals or metal compounds
IPC: C25C1/20
Filed: 1937-05-21
Abstract: 497,835. Electrolytic recovery of metals from ores. VALE, W. H. May 21, 1937, No. 14234. [A Specification was laid open to inspection under Sect. 91 of the Acts, Nov. 30, 1937.] [Class 31] The ore is immersed free from connection in an electrical circuit in an electrolyte through which a current of voltage approximately 50 or more is passed ; the metal of the ore combines with hydroxyl ions of the electrolyte and passes into solution by virtue of electric charges induced in the ore or the particles thereof. The electrolyte should be of lower conductivity than the ore particles. Direct current is preferred but alternating current may be employed. The metal is recovered from the solution by any suitable means. In an example 7 lb. of an ore containing 17 grains of free gold per ton is introduced in a canvas bag enclosing an anode into a solution containing 0À1 per cent of a commercial mixture of sodium and potassium cyanides and 0À1 per cent of caustic soda, the ore going into suspension on entry of the liquid into the bag. A current of 50 amps and 125 volts is passed. A refractory sulphide ore containing 12 dwts. of gold per ton may be similarly treated, passage of current for a longer period being necessary in this case. In a modified form of treatment the ore is wet milled and fed to one end of a canvas shoot extending through the electrolyte and enclosing the anode, the ore being maintained in suspension by air jets. The metal is recovered from the electrolyte passing from the other end of the shoot. Metal deposited on the cathode is also recovered. In treating an ore in which the main constituents are arsenic sulphide and iron sulphide surrounding gold suphide, an electrolyte containing caustic soda and calcium cyanamide is employed in order that gold may be brought into solution selectively. The Specification as open to inspection under Sect. 91 includes also the following subjectmatter : (i) electrodeposition of nickel from an electrolyte containing 7 oz. /gal. of ammonium chloride and some ammonium hydroxide into which metal is introduced from a nickel plate interposed between the anode and cathode without electrical connection; (ii) electrodeposition of gold from an electrolyte containing 1 oz./gal. caustic soda and 1 oz./gal, sodium or potassium cyanide into which metallic gold is introduced without electrical connection. This subject-matter does not appear in the Specification as accepted.
Patent GB-1457589-A (GB)
Title: Calender
IPC: D06C15/02
Filed: 1974-04-01
Abstract: 1457589 Rollers ESCHER WYSS Ltd 1 April 1974 [16 April 1973] 14310/74 Heading F2U [Also in Division D2] A calender comprises a set of rolls 7, 8, 9, 10 and 16 each being rotatably mounted at its ends in bearing blocks 12 which are slidably mounted in guides to permit the calender to be opened on lowering of the bottom roller 16 (on a lever 17 movable by a piston-rod 20 of a cylinder 21). The movement of the blocks 12 is limited by adjustment screws 15. The blocks 12 may slide on guide surfaces 11 or have rollers or ball bearings to reduce friction (Fig. 6, not shown). The guides are themselves adjustably mounted through housings 3, 4, 5 and 6 on a guide 2 of a stand 1. The ends 14 of the rolls are mounted in ball bearings and may have an axial bore to reduce weight (Fig. 4, not shown). As shown in Fig. 3 a side 31 of a guide may be pivoted on release of a pivotable screw 37 for removal of a roll.
Patent GB-168151-A (GB)
Title: Improvements in or relating to railway rail chairs and method of and means for holding and securing the rails therein and locking the tie-bars therefor
IPC: E01B3/40
Filed: 1920-05-26
Abstract: 168,151. Green, L. May 26, 1920. Chairs with separate jaws; chairs; tie-bars.- Tie-bars 5 are secured in place by notches in clips 6 engaging notches 11 in the tie-bars. The clips also engage the rails and are secured by bolts 7 to chairs 1, such as described in Specifications 11951/13, 8514/14, and 8698/14. The tie-bars are also notched at 13 to interlock with slots in the legs 2 of the chair or in uprights 4 secured between the chair legs. The chair base may seat two rails, or may be widened to do so by a bracket 15 riveted to one chair leg. The nuts 9 may be locked by engagement with the uprights 4, or they may have an extension 16 to engage a chair leg, or a bracket 15. The rail seats may be slightly cambered to allow for deflexion under load. Specification 14758/05 is referred to.
Patent GB-800332-A (GB)
Title: Method of and system for cooling hot metallic parts
IPC: F02C7/25
Filed: 1956-05-09
Abstract: 800,332. Cooling exhaust pipes. SPECIALTIES DEVELOPMENT CORPORATION, May 9, 1956 [July 19, 1955], No. 14369/56. Class 7(2) [Also in Group XXI] Water, or an aqueous salt solution such as that specified in U.S.A. Specification 2,745,806, is ejected from a container 11 by a non-combustible gas under pressure and mixed in a chamber 12 with the gas to form an aerated liquid which is sprayed from a perforated pipe 14 on to a metallic screen 29 distributing it uniformly over the hot exhaust pipe 9 of a crashed aircraft or vessel. A crash-responsive valve 20 allows air held at 3000 p.s.i. in a container 10 to pass, via a valve 21 which reduces it to 300 p.s.i., both to the container 11 and to a metered inlet 16 of the chamber 12 which has a metered inlet 15 for the water or solution and an outlet 17. Reference is made to the use as non-combustible gases of argon, neon, helium, krypton, nitrogen, carbon dioxide and non-inflammable halogenated hydrocarbon compounds which are gaseous under pressure at minus 65‹F. Reference is also made to the use of gas at 100 p.s.i. The aerated liquid may comprise by weight one part of gas to between twenty and thirty parts of water or solution, e.g. one part of air to seventeen and one half parts of water or to twenty-six parts of salt solution of 1.5 specific gravity.
Patent GB-443623-A (GB)
Title: Improvements in and relating to windows for vehicles
IPC: B60J1/14
Filed: 1935-05-16
Abstract: 443,623. Vehicle-window regulators. ROETHEL, J. H., 269, Marlborough Avenue, Detroit, Michigan, U.S.A. May 16, 1935, No. 14373. Convention date, July 25, 1934. [Class 20 (iii)] A rear'side window for a vehicle comprises a glass panel 14 which is moved rearwardly and swung downwardly in its own plane when opening, to provide a ventilating slot at the forward edge. A panel holding member 35 is provided with guide slots 36 for pins 33, 34 on the ends of arms 28, 29 which rotate with intergeared pinions 22, 24 actuated by a hand crank 30. The gear ratio is such that the arm 29 rotates faster than the arm 28. A fixed pin 42 on the panel-holder 35 engages in a slot 32 in the lever 28, so that on actuation of the hand crank to open the window, the panel is carried rearwardly and downwardly and also tilted so that the upper edge of the panel moves in a path approximately parallel to the roof line of the vehicle body.