baber/WOPTO huggingface dataset:
Patent GB-486934-A (GB)
Title: Improvements in or relating to processes for the preparation of disubstituted barbituric acids
Filed: 1936-12-11
Abstract: C : C-disubstituted barbituric acids in which one of the C-substituents is a 2-methylallyl group (group M) and the other is a hydrocarbon residue containing 2-6 carbon atoms (group R) are prepared by the following processes: (1) reacting malonic or cyanacetic esters containing M and R substituents with urea, followed when necessary by acid hydrolysis; (2) treating an R-substituted barbituric acid with an M-halide; (3) condensing an M-substituted barbituric acid with an R-halide, R then being allyl or 2-methylallyl only.  Otherwise, the group R is one as above defined whose carbon atom attached to the barbituric acid nucleus is not attached to more than two other carbon atoms, such groups being, for example, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, n-amyl, isoamyl, 1-methyl-butyl, 2-methyl-butyl, 1-ethyl-propyl, n-hexyl, isohexyl, sec-hexyl, 2-ethyl-butyl, allyl, 2-methyl-allyl, cyclopentyl, cyclopentenyl, cyclohexyl, cyclohexenyl or phenyl.  The products, which may be converted into their salts, possess therapeutic properties.  Examples are given of the preparation of di-2-methylallyl-barbituric acid and of 2-methylallyl-barbituric acids containing most of the p  specified groups as the second C-substituent.  The products may be converted by the processes described in Specifications 364,041 and 365,135 into their salts of alkali and alkaline earth metals, ammonium, monoalkyl-ammonium and di-alkyl-ammonium.  The 2-methylallyl-barbituric acid used as a starting material for process (2) is prepared by condensing 2-methylallyl-malonic ester with urea.  Malonic and cyanacetic esters.  The above disubstituted malonic and cyanacetic esters are obtained by reacting an M-halide and an R-halide in either order with an unsubstituted malonic ester, in which the ester group is methyl, ethyl or propyl.  The monosubstituted esters are obtained as intermediate products. Examples are given.
Patent GB-861808-A (GB)
Title: Improvements in or relating to the dehydrochlorination of hexachlorocyclohexanes
IPC: C07C17/25
Filed: 1959-10-08
Abstract: A process for the preparation of chlorobenzenes by the dehydrochlorination of a hexachlorocyclohexane comprises heating the hexachlorocyclohexane with sulphur.  Active carbon, fuller's earth and/or active silicic acid may be added to the reaction mixture. By-products formed in the preparation of g -hexachlorocyclohexane may be employed as starting materials. Products mentioned include dichloro-, trichloroand tetrachloro-benzenes.  Sulphur chlorides in the products are destroyed by treatment with water or dilute solutions of alkali metal hydroxides, alkaline earth metal carbonates or other basic reagents.  The products may be separated by fractional distillation.  Examples are furnished.
Patent GB-324747-A (GB)
Title: Improvements in and relating to the treatment of gases with solids & liquids
IPC: B01D46/32
Filed: 1928-11-21
Abstract: 324,747. Cooper, C., Henshaw, D. M., and Holmes & Co., Ltd., W. C. Nov. 21, 1928. Gases, treating with liquids; purifiers; tar.- In towers for treating gases with active or inert solids and liquids comprising a gas inlet 6 and outlet 7 and apertures in the walls connected by unobstructed passages 5 so that gas travels in a zig-zag path through the solid in the tower, valved or movable partitions 8 are provided at different levels so that the solid may be moved stepwise down the tower from each section to that immediately below. Gratings or inclined louvres 4 are provided on the walls and cover plates 5 overlapping on opposite sides of the tower guide the gas up through the solid. Inclined deflectors 18 extending downwardly from the end walls at each partition guide the falling solid toward the centre. Solids are added by a valved opening at the top and discharged through movable or valved elements 9, 9<a> in each partition 8 operated by handles 11 sliding in horizontal extensions 12 of the tower. A tank 15 at the base may serve as a liquid seal, or for the separation of tar when fuel gases are treated. When gases are treated with liquid, the tower is filled with Raschig rings. Specification 276,736 is referred to.
Patent GB-300988-A (GB)
Title: Improvements in chalk-holding devices for billiards
IPC: A63D15/14
Filed: 1928-11-21
Abstract: 300,988. Potje, F. Nov. 22, 1927, [Convention date]. Addition to 296,434. Billiards, chalk-holders for.-The billiard chalkholder claimed in the parent Specification is modified by making the tip-roughening part detachable from its supporting part, e.g. by covering the sieve-like closure for the French chalk container by a removable piece of roughening material clamped at its edges by an annular cap placed over the sieve-like closure. The receptacle for the French chalk is also made detachable from the portion holding the chalk block. The French chalk receptacle c<4> is shown in Fig. 1 detached from the chalk-block holder c, Fig. 2. The upper part of the receptacle is seamed over at c<8> so as to form abutments for the sprinkling sieve f<1> and the cap g. The cap has a central opening g<1> beneath which is placed a piece of emery cloth b<1> or other roughening member which besides being available for roughening the cue tip, acts as a closure for the sieve. The edges of the emery cloth lie between the flanges of the sieve f<1> and the cap g, and the emery cloth adheres to the cap when it is removed. To ensure the adhesion the cap may be formed with a beading g<3> into which the emery cloth is sprung. The receptacle c<4> may be connected to the chalk-block holder c by bavonet fastenings c<11>, c<14>, or may screw into the holder, thus providing a means for forcing the chalk-block forward as it becomes worn. The emery cloth may be replaced by an ivory plate bearing the owner's name.
Patent GB-1061665-A (GB)
Title: Cutter-loader for coal getting
Inventor: BALINOV IGOR MIKHAILOVICH
IPC: E21C25/06
Filed: 1965-08-11
Abstract: 1,061,665. Mineral-mining m/c's. GOSUDARSTVENNY PROEKTNO-KONSTRUKTORSKY I EXPERIMENTALNY INSTITUT UGOLNOGO MASHINOSTROENIYA. Aug. 11, 1965, No. 34331/65. Heading E1F. In a cutter loader mounted on for movement along a conveyer the gear head of the cutting means - opposed boring heads rotatable about horizontal axis parallel to the direction of advance of the cutter loader and an extendable cutter disc and drum assembly rotatable about a vertical axis and positioned between the boring heads - extends bridge wise over the conveyer and is connected to the motor - containing body of the machine by longitudinally extending booms so disposed on the goaf side and alongside the fase side of the troughing of the conveyer that a space is left through which mined mineral can be loaded by an adjacent boring head on to the conveyer.
Patent GB-485878-A (GB)
Title: Improvements in or relating to variable pitch propellors, especially for aircraft
IPC: B64C11/38
Filed: 1936-12-15
Abstract: 485,878. Screw propellers. FAIREY AVIATION CO., Ltd., and FORSYTH, A. G. Dec. 15, 1936, No. 34444. [Class 114] In variable pitch screw propellers wherein the pitch adjustment is effected by shafts actuated from an electric motor, two of such shafts are extended and formed with screw threads to engage non-rotatable nut members which act upon switches for the purpose of opening the appropriate circuit and so determining the maximum or minimum pitch values. The shaft 32, carrying the worm 36 which adjusts the blade for pitch, is extended so that the part of reduced diameter 38 is in threaded engagement with a nut member 39 having a projection 40. This member is adapted to contact with the cam surfaces 42, 43 of a switching member 44 in the circuits of the electric motor 11. In the construction shown, the electric motor drives a pinion 19, which meshes with screw pinions 22 on inclined shafts 23, the outer ends of which have gear connections 26, 29 with the shafts 32. Specification 398,993 is referred to.
Patent GB-904941-A (GB)
Title: Improvements in or relating to the preparation of hectographic printing master sheets
IPC: G03G15/26
Filed: 1960-10-07
Abstract: 904,941. Xerographic processes. RITZERFELD, W., and RITZERFELD, G. Oct. 7, 1960 [Oct. 22, 1959], No. 34444/60. Drawings to Specification. Class 98 (2). A hectographic printing master sheet, i.e. prepared from a thin flexible sheet of paper, synthetic material or metal having a semi-conducting layer by electrostatically charging the layer, exposing the layer to light from an original, developing the sheet at the image areas by means of an electrostatically charged medium comprising a mixture or compound of a resin and/or a wax or waxes with one or more dye materials or dye components soluble in alcohol; and fixing the sheet thermally, chemically or mechanically. The developer may be in the form of a powder, paste or liquid and consists of a dye (e.g. crystal violet, malachite green, fuchsine, auramine, victoria blue, setopalin, setocyanine, diphenyl methanes, spiroidipyrane, phenolphthalein, thymolphtalein, azodyes, metal salts which form alcohol soluble complex salts with organic compounds, carbon black, a wax (e.g. carnauba, montan wax, stearin) and/or a resin (e.g. colophony, ester gum, shellac, melumin, modified phenol formaldehyde resins, alkyd resins, silicone resins, polyvinyl chloride, polystyrol). To loosen the structure of a powder developer substances which develop gases on heating, e.g. a bicarbonate, and an organic acid, may be added. For a developer in the form of a liquid or paste chlorinated hydrocarbon, carbon tetrachloride, trichloroethylene, " Aerosol " or " Freon " (Registered Trade Mark) may be used for the above purpose. The photoconductive sheet may comprise a base of " Cellophane, " (Registered Trade Mark) P.V.C., paper or metal, and a photoconductive layer of sulphur, selenium compounds, zinc oxide or sulphide, anthracene or polynuclear cyclic hydrocarbons and the base and layer may be bound with cellulose, cellulose ester, polyvinyl chloride, polyesters, polyamides, polycarbonates, &c. Before the sheet is fixed an electrostatic insulating powder, e.g. glass dust, may be applied to the image areas and a second image from a second original formed using a different dye which does not adhere to the insulating material. The insulating material is removed prior to fixing. The apparatus of Specification 904,942 is described as being suitable for the process of this invention.
Patent GB-828295-A (GB)
Title: Improved writing instrument and ink therefor
Inventor: JR EUGENE PARK COFIELD
IPC: B43K7/01
Filed: 1958-04-18
Abstract: A "liquid lead" ink which, when used in a ball-point pen, gives erasable writing, comprises a suspension of carbon black, e.g. molacco black, peerless black, channel black, thermal black, in a thixotropic liquid comprising a mixture of a polyamide and a polyester resin, e.g. as described in U.S. Specification 2,663,649. In the example a polyester having an acid No. 8, and obtained by reacting phthalic anhydride oleic acid and glycerol was mixed with a polyamide obtained by reacting a mixture of dimerized and trimerized unsaturated fatty acids with a polyamide. The liquid is mixed with furnace black, lamp black, channel black, thermal black, or graphite. Specifications 800,036 and 801,693 also are referred to.
Patent GB-1198378-A (GB)
Title: Opposed-piston machine, preferably an opposed-piston engine, with a hydraulic transmission
IPC: F01B1/08
Filed: 1968-07-19
Abstract: 1,198,378. I.C. engines with hydraulic drives; compressors; rotary pumps and motors. FRIED KRUPP G.m.b.H. July 19, 1968 [July 22, 1967], No.34637/68. Headings F1B; F1F and F1N. In an opposed piston engine or compressor having main pistons 7, 8 connected to displacer pistons 11, 12, which act through liquid columns upon a rotor 3, the piston 12 acts through liquid columns 14, 17 to drive rotor 3 whilst piston 11 acts through liquid column 18 on the upper surface of piston 12. The passages 14, 17, discharge into diamaterially opposed chambers 5, 6, associated with rotor 3, another pair of chambers being connected to a second pair of opposed pistons. At starting or slow running air or liquid under pressure is admitted through pipe 16 to the space below piston 11 to keep it in contact with its liquid column. In an I.C engine, the space 20 constitutes a combustion chamber and the pistons serve to drive the rotor 3; in a compressor the rotor 3 is driven externally and drives the pistons 8, 7, the space 20 forming the compressor chamber. In Fig. 3 the upper piston 7 is connected by rods 22, 23, to a pair of secondary pistons 24, 25.
Patent GB-1212575-A (GB)
Title: Improvements in or relating to article release mechanisms for conveyors
Inventor: MANN JOHN BRIEN
IPC: B65G47/61
Filed: 1968-07-23
Abstract: 1,212,575. Discharging articles from endless conveyers. TULLY ENG. CO. Ltd. 11 Aug., 1969 [23 July, 1968], No. 35101/68. Heading B8A. In a sorting apparatus incorporating a substantially horizontally mounted conveyer, a release mechanism comprises a striker plate 5 located at the side of the conveyer, pivoted about a substantially vertical axis at its one end 6, and pivotally interconnected by means 7 with a support 3 through the intermediary of biasing means 8; the striker plate, when acted upon by a predetermined torque force, can move out of an operative position (in which it can release articles carried by the conveyer) against the action of the biasing means 8. As shown, the connecting means 7 is an electromechanical linear actuator. It may alternatively comprise an hydraulic piston and cylinder device, a solenoid, or a linear motor. It is operable to move the striker plate 5 about its pivot between the operative position (full lines, Fig. 2) and an inoperative position (dot-dash lines). In the former position, a release member 2a of a conveyer carrier shackle 2 is displaced by engagement with the arm plate 5 so as to release a mail bag (not shown). If a mail bag happens to be carried in an altitude which would otherwise cause it to jam against the arm 5 the biasing means 8 (comprising a spring 8c) gives sufficiently to prevent this from occurring. At the last station of the conveyer the actuator 7 is replaced by a fixed strut (9) (Fig. 4, not shown).
Patent GB-817316-A (GB)
Title: Improvements in or relating to spray painting
IPC: B05B3/10
Filed: 1957-11-12
Abstract: 817,316. Spray-producers. FORD MOTOR CO. Ltd. Nov. 12, 1957 [Nov. 19, 1956], No. 35187/57. Class 69 (3). Apparatus for the atomization and electrostatic transportation and deposition of paint comprises coaxial cups 10, 11, means for continuously supplying paint to the inner surfaces of each cup, means for rotating them about their axes so that the inner cup has a higher rotational speed than the outer one, the speeds being sufficient to atomize the paint by centrifugal action, and means for electrically charging the atomized paint particles. The apparatus includes a metallic casing 12 which, together with the cups, is charged to a high potential, and an air motor in the casing drives a shaft 21 which carries gears 22, 23. Gear 22 drives a gear 24 secured to a hollow shaft 25 connected to the inner cup, and the smaller gear 23 drives a gear 26 on a bushing 27 connected to the outer cup. Paint is fed through a conduit 28 and is led to the cups through outlets 29 and 30. The edges of the cups may be sharp or rounded. Compressed air is employed to interrupt and re-establish paint flow.
Patent GB-489276-A (GB)
Title: An improved method of forming tyre rims for vehicle wheels
IPC: B21D53/30
Filed: 1936-12-22
Abstract: 489,276. Making tyre rims. KELSEYHAYES WHEEL CO. Dec. 22, 1936, No. 35208. Convention date, Jan. 6. [Classes 83 (ii) and 83 (iv)] Flanging, corrugating.-A rectangular blank is bent to cylindrical form and its edges are welded to form an annular member which is acted on by dies C, D to flare the ends unequally, the central portion having its diameter unchanged. Stops C<3>, D<2> limit the flaring operation. While supported on the die C the blank is further shaped by a die F, Fig. 4. The shaping is completed by successive rolling operations, the final form being obtained by the rolls shown in Fig. 7.
Patent GB-742231-A (GB)
Title: Forming webs by roller sheeting
IPC: D06N7/00
Filed: 1953-12-18
Abstract: 742,231. Roller-sheeting plastic materials; fibrous compositions. KLINGER, K., and LOHR, H. Dec. 18, 1953 [Dec. 23, 1952], No. 35325/53. Classes 70 and 87 (2). A process for the manufacture of a sheet or web of material comprising a filler and a plastic binding agent is characterized in that the binding agent is dissolved in a solvent therefor, the resulting solution is mixed with the filler and any other additive when such an additive is used and the resulting mixture is continuously rolled out between pressure rollers 2, 3 having roughened surfaces and the resulting web of material is smoothed by a pair of smoothing rollers 5, 6 which are arranged directly after the pressure rollers and which rotate at a somewhat higher peripheral speed than the pressure rollers. Suitable fillers are asbestos fibres and powdered or granulated cork. Suitable binding agents are natural or synthetic rubber and synthetic resin. A suitable solvent is benzene or benzine. The mixture is drawn by the lower pressure roller 3 from a funnel-shaped container 36 and after passing between the pressure and the smoothing rollers it leaves as a sheet 4 on rollers 7. The pressure rollers 2, 3 are worm driven from a shaft 21 and the lower smoothing roller 6 is chain driven from the shaft of the roller 3, the upper smoothing roller 5 being gear driven from the roller 6. The bearing supports 11 for the upper pressure roller 2 can be raised or lowered by worm gearing operated by a handle (not shown) applied to one end of a transverse shaft 18, final adjustment being achieved by screwed spindles 12 operated by hand-wheels 13. The bearing supports of the upper and lower rollers have flanges 14, 15 between which shims may be inserted. The bearings of the upper smoothing roller 5 are mounted in plate 39 to allow for adjustment by hand-wheels 37. The roughened surface of the pressure roller ensures that the mixture is drawn continuously between them in spite of its low cohesion and viscosity. The depth of the depressions of the rough surface should preferably be not less than 0.1 mm. The higher speed of the smoothing rollers counteracts the adhesion of the material to the roughened pressure rollers and ensures a satisfactory withdrawal of the sheet. The use of a solvent for the binder ensures that a filler of low specific gravity, e.g. asbestos fibre is sufficiently wetted. Examples are given of suitable compositions to be rolled into sheets suitable for floor surface, insulation and packing. All these compositions contain rubber, benzine, zinc oxide and sulphur, to which' are added, for the floor surfaces and packing, asbestos and kaolin and for the insulation cork and pumice powder. Also, for the floor, lithophone is added and, for the packing, heavy spar.
Patent GB-1486823-A (GB)
Title: Signal processing circuits
IPC: B29C48/09
Filed: 1974-08-12
Abstract: 1486823 Extruding parisons MOOG Inc 12 Aug 1974 [1 Nov 1973] 35361/74 Heading B5A [Also in Divisions G3 and G4] The invention relates to a control system (see Division G3) and to signal-generating circuitry (see Division G4) for use in such control system. The apparatus controlled is an extrusion machine for producing a bottle-form parison 23 (Fig. 1, not shown). The invention is applicable to the independently-controlled simultaneous production of two or more parisons 23b, 23c, Fig. 13, and to the production of parisons of assymetric form. The latter requires not only appropriate control of the vertical movements of a pintle 21d but also control of horizontal movements of a did 240. The die may be an apertured rigid block bodily displaceable in two perpendicular directions (Fig. 15, not shown) or a fixedly located but readily deformable ring (Fig. 16, not shown). An accumulation chamber may be interposed between the extruder barrel and the die. Extrusion may be into a neck ring mould (Fig. 6, not shown) which is moved away from the die.
Patent GB-909624-A (GB)
Title: Improvements in and relating to a process and a device for mounting needle bearings in universal joints
IPC: F16D3/41
Filed: 1960-10-17
Abstract: 909,624. Universal joints. PITNER, A., and ROULEMENTS A AIGUILLES S.A. DES. Oct. 17, 1960 [Oct. 21, 1959], No. 35432/60. Class 80 (2). [Also in Group XXII] In a Hooke's type universal joint correct alignment of a spider member and a yoke 4 is obtained during assembly by axially aligning the spider and yoke and sliding needle bearing cups 6 in bores 9 of the yokes until they abut the spider trunnions 1 whereafter retaining members 22 having their outer periphery formed as a tool 23 are inserted into the bores abutting the cups 6 the tool part of the plate cutting a recess in the bore 9 to retain the plate in position. The periphery of the retaining member 22 may, as shown, be formed as a self-tapping screw 23 or may (Figs. 2-5, not shown) be formed as a chisel in which case the retaining members are expanded radially to bite into the wall of the bore 9.
Patent GB-899530-A (GB)
Title: Improvements in or relating to metal sheeting
Inventor: CLEMENTS STEVEN GEOFFREY
IPC: E04D3/362
Filed: 1958-11-04
Abstract: 899,530. Metal sheets; roofing. BRITISH ALUMINIUM CO. Ltd. Oct. 30, 1959 [Nov. 4, 1958], No. 35440/58. Classes 20(2) and 20(4) An aluminium or alloy sheet 1 is provided with channels 2, 3 at opposite edges by which it may be connected to a similar sheet 1a to form, e.g. a roof. Other channels of similar or shallower section may be formed between and parallel to the channels 2, 3. The channel 2 has walls 5, 6 which fit into the channel 3 and a flange 7 engages with a hook portion 11 on the second channel. The sheets 1, 1a may be attached to a support 13 by a clip 14, a bolt 15, and a similar clip 17. In a roof, Fig. 3, flashing 21 is supported by a clip 30, 31 retained on the channel by flaps 32 bent down from the flashing, and a filler piece 27 rests on the metal sheet.
Patent GB-620612-A (GB)
Title: Improvements in or relating to pneumatically operated rock drills or picks
IPC: B23Q11/08
Filed: 1946-11-29
Abstract: 620,612. Percussive drills. SOC. POUR LA MISE EN VALEUR DES BREVETS ET PROCEDES D'AEROSOLATION DU DOCTEUR DAUTREBANDE EURATMOS. Nov. 29, 1946, No. 35522. Convention date, Nov. 30, 1945. [Class 124] In a pneumatically-operated percussive drill 1, exhaust air from a space 10 is directed by a tube 29 against a jet of water or other liquid under pressure issuing from a tube 30 to form a cloud which is immediately discharged into the atmosphere surrounding the drill without the use of an extension of the exhaust pipe. The relative position of the tubes 29, 30 is adjusted by a screw 33. The liquid, which may be a viscous, sticking, froth-forming or neutralising solution, may be supplied by a flexible tube 31 connected to the base of a vessel 34 supplied, under the control of a tap 37, with compressed air or other pressure agent from an independent source or from the tube 36 supplying compressed air to the drill 1. The Specification as open to inspection under Sect. 91 states also that (i) the invention is not limited in its application to drills, (ii) the drill cylinder and a rearwardly-directed jet connected to the exhaust air outlet may be surrounded by a sheath provided with a control valve whereby the dust is withdrawn by aspiration away from the drill steel into a disposal tube, (iii) the compressed air operating the drill may be charged with particles of liquid, pulverized solids, or aerosols produced as by means of the apparatus described in Specification 29292/46, as open to inspection under Sect. 91, (iv) the liquid of the aerosol may serve as lubricant for the drill, and (v) a sheath surrounding the drill may direct the aerosol-charged exhaust air towards the drill steel. This subject matter does not appear in the Specification as accepted.