baber/WOPTO huggingface dataset:
Patent GB-890885-A (GB)
Title: Triacetyl benzine
Filed: 1958-10-24
Abstract: Triacetyl benzene is prepared by heating a beta-acetyl vinyl ester of the general formula CH3COCH=CHOOCR wherein R is a C1-4 alkyl group, in the presence of water, which may be a trace amount or sufficient to serve as a solvent.  Inert organic solvents may be present. Reaction is preferably effected at about the boiling point of the mixture at atmospheric or elevated pressure and, if desired, in the presence of a buffer agent and a small amount of acid.  Normally, a volume of water amounting to two to ten times the weight of ester is used.  Acid formed in the reaction may be distilled from the reacting mixture.  The acetyl-vinyl esters may be prepared by reacting a metal salt or chelate of formyl acetone, under anhydrous conditions and in the presence of an organic inert preferably volatile solvent, with an acid halide of the formula RCOX, where R is a C1-4 alkyl group and X is chlorine, bromine or iodine, or with an acid anhydride of the formula RCO-O-COR wherein the R's are the same or different C1-4 alkyl groups, to form the desired ester. Thereafter, water is added to the reacted mixture which is heated to remove the solvent and the residual aqueous mixture is further heated to produce the triacetyl benzene.  The salts or chelates may be derived from alkaline metals of atomic numbers 3-19, polyvalent metals of atomic numbers 22-30 and aluminium.  The alkaline salts are preferred and may be formed in situ from acetone, a suitable formate ester and an alcoholate of the desired alkaline metal.  The acylation is normally effected at about 10 DEG  C. to 65 DEG  C.  Numerous examples are given, several of which describe the preparation of various formyl acetone metal salts or chelates.  The triacetyl-benzene may be oxidised to trimesic acid. Specification 779,322 is referred to.
Patent GB-306649-A (GB)
Title: Improvements in small arms
IPC: F41A3/20
Filed: 1927-12-16
Abstract: 306,649. Verney, C., and Massard, P. Dec. 16, 1927. Breech actions, sliding breech-block; barrels; stocks. -According to the invention, all the members of the locking mechanism and of the percussion mechanism of a gun having a reciprocating breech-block carrying one or more rotary locking heads in recesses therein are contained within the breechblock and trigger guard, the outer surface of the breech-block being quite smooth and flush with the corresponding surface of the barrel hoop,. whereby the top of the smallarm is free from any salient part. The construction of the gun is substantially the same as that of the gun described in Specification 283,928, except that the breech mechanism is not operated by means of a hinged lever, but by means of two pressbuttons 17. When these buttons are pressed in, they compress a spring 18 and withdraw catches 19 from notches in the plate on which the breechblock 10 slides; the breech-block may then be opened and closed, and when the press-buttons are released the breech-block is again locked in the closed position.
Patent GB-429362-A (GB)
Title: Improvements in or relating to uniting surfaces by means of adhesive solutions
IPC: C09J5/02
Filed: 1933-12-05
Abstract: In joining together surfaces, one or both of which is absorbent, by means of an adhesive dissolved in a non-hydrophilic solvent, a liquid immiscible with the adhesive solution is applied to at least one absorbent surface before contacting it with the adhesive.  The adhesive may be applied to a non-absorbent surface such as metal and the immiscible liquid to an absorbent surface, and the two surfaces then pressed together.  The absorbent surface or surfaces may be damped or wetted by immersion or spraying with water or a hydrophilic liquid such as alcohol containing, if desired, a wetting agent such as a sulphonated derivative of an oil or a high aliphatic alcohol, and surplus liquid may be removed by pressure or heating.  The adhesives described in Specification 395,430 may be used in solution, e.g. in toluene to unite water-moistened layers of cotton fabric together, or to metal.
Patent GB-460063-A (GB)
Title: Improvements in radiators for the water-cooling systems of internal-combustion engines
IPC: F28F1/32
Filed: 1935-12-10
Abstract: 460,063. Gilled tubes for heat - exchangers. COVENTRY MOTOR FITTINGS CO., Ltd., and GARRATT, A. L. Dec. 10, 1935, No. 34155. [Class 64 (iii)] The fins of internalcombustion engine radiators are spaced apart by open - ended projections b<2> pressed out of the fins. Alternate projections between the tube apertures are pressed from opposite sides of the fins, and the edges of the fins are formed with serrations b3.
Patent GB-1381675-A (GB)
Title: Coining presses
IPC: B44B5/02
Filed: 1972-07-21
Abstract: 1381675 Coining TAYLOR & CHALLEN Ltd 11 July 1973 [21 July 1972 4 Nov 1972] 34155/72 and 50911/72 Heading B3Q A collar plate assembly for a coining press comprises a connection 17 for compressed-air which escapes upwards around the periphery of the collar plate 7 so as to resist the ingress into the assembly of powdered metal oxide broken from blanks coined in the collar plate. A pad 22 of foam rubber compressed between the plate 7 and a holder 14 for the lower die 13 expands on downward movement of the holder 14 and helps to produce a suction effect for drawing a blank into the base of the collar plate 7 and also prevents the ingress of powder. The plate is fixed by a ring 9 to one end of a sleeve 8 the other end of which is biased by springs 12, the sleeve being retained for limited movement in a casing 2 by end plates 4, 5. There is a plastics bearing 15 between the sleeve 8 and die-holder 14 which is pressed down against actuating mechanism (not shown), by plungers 16. Compressed-air from the connection 17 enters an annular duct 19 which is connected by radial passages 20 to a duct 21 in the ring 9 from which it escapes upwardly. The outer surface of sleeve 8 is dimpled to accommodate any powder that penetrates. Upward movement of the die 13 ejects the coin.
Patent GB-521649-A (GB)
Title: Improvements relating to brakes for electrically propelled vehicles
IPC: B60T11/04
Filed: 1938-11-24
Abstract: 521,649. Control of motors; actuating controllers. SUNBEAM COMMERCIAL VEHICLES, Ltd., and HARWOOD, H. G. Nov. 24, 1938, No. 34158. [Class 38 (iii)] Brake devices.-A controller c for an electrically propelled vehicle, is operated to the left of the neutral position shown, to control motoring operation by a lever h actuated from a pedal p through a link o, and to the right to control regenerative or rheostatic braking by a spring e under control of a lever i actuated from a pedal 3 through a link t. The pedal 2 which operates on the link t through a cam lever u, is also effective to actuate mechanical brakes. In a modification Fig. 2, not shown, a single lever replaces the two levers h, i.
Patent GB-337982-A (GB)
Title: Improvements in or relating to apparatus for cleansing oils
IPC: C10M175/00
Filed: 1929-11-08
Abstract: 337,982. Preston, Stallard, & Co., Ltd., and Malsbury, J. Nov. 8, 1929. Mineral oils, purifying; recovering waste lubricants.-In an apparatus of the kind described in Specification 306,771 for purifying used lubricating or other oil, in which water or other liquid is circulated through the oil by convection currents set up by a heater and circulator, the water is after the treatment cooled at a greater rate than the oil to accelerate the rate of separation of the two layers. A tank 1, the upper part of which is surrounded by lagging 5, and which contains a layer 8 of oil and a layer 7 of water, is heated by an electrical heater 6, which causes the water to rise through a cone 11, to be distributed over the surface of the oil and to pass downwardly therethrough. The lower unlagged part of the tank 1 containing the layer of water is cooled by exposure to the atmosphere, or to the action of fans. The lower part 3 of the tank 1 may be funnel-shaped to facilitate the removal of the separated impurities.
Patent GB-194025-A (GB)
Title: Improvements in or appertaining to plastic compositions suitable for flooring, constructional purposes and the like
IPC: C08L91/00
Filed: 1922-11-17
Abstract: 194,025. Sperni, J., and Nuroads, Ltd. Nov. 17, 1922. Fibrous plastic compositions. - A composition for flooring, building, and like purposes consists of comminuted fibrous material such as wood-pulp or vegetable fibre, a mineral filler such as scoria, pumice, slate dust, or powdered metal, and a binding-agent composed of 1 part by weight of zinc oxide, 1 part of zinc chloride, and 2 parts of casein or of a mixture of casein and glue. Colouring-agents such as iron oxide may be added. Suitable proportions are 20 parts by bulk of fibres, 20 parts of mineral filler, 10 parts of binding-agent, and 1 part of colouring-agent. The surface of the composition may be hardened by the application of formaldehyde after setting.
Patent GB-1020608-A (GB)
Title: An improved method of erecting mobile tower cranes and cranes adapted to be erected by this method
Inventor: LAWRENCE HARRY FREDERICK
IPC: B66C23/34
Filed: 1964-08-21
Abstract: 1,020,608. Self-erecting mobile tower cranes. LAWRENCE-COLEBROOK (CONSTRUCTION EQUIPMENT) CO. Ltd. Aug. 21, 1964, No. 34234/64. Heading B8B. [Also in Division B7]  A mobile tower crane 1, Fig. 1, is erected by a hydraulic ram 16 and is transported with the jib overlying the tower in a horizontal plane and with the outer adjacent parts of the two folded about pivots 9, 12. To erect the crane outriggers 4 are drawn out and jacks 5 screwed down on to blocks 6. The portions of the tower between 9 and 10 and of the jib between 10 and 12 are unfolded and pinned in position. Tower and jib are next raised into a vertical position about a pivot 7 by the ram 16. The latter is now moved into the position shown in full lines in which it hoists the jib by means of a cable. Fig. 6 shows a crane mounted on wheels 13 rather than on a tractor. The tractor may be removed, Fig. 7, and the crane supported on a trestle 15. Ballast is required when the tractor is removed.
Patent GB-904397-A (GB)
Title: Coating process and an epoxy resin coating composition therefor
IPC: C08G59/32
Filed: 1960-10-06
Abstract: Solid objects are coated by heating the object, and immersing it in a gas-fluidized suspension of a particulate physical mixture of (i) a solid glycidyl polyether of a polyhydric phenol having a 1,2-epoxide equivalency greater than one and (ii) pyromellitic dianhydride, the particles of the mixture all passing through a 50-mesh and being held by a 220-mesh Tyler screen, there being 0,5-1,5 anhydride groups of (ii) for each epoxy group of (i), and the object being at a temperature higher than the melting point of the mixture when it is immersed in the suspension.  The object is preferably pre-heated to 180 DEG -260 DEG C., and the process is preferably followed by a step of heating the coated object to 200 DEG -240 DEG C. for at least one hour.  In the examples the components (i) used are bisphenol A/epichlorhydrin condensates of various molecular weights, and the tetraglycidyl ether of 1,1,2,2-tetraphenylol ethane; nitrogen is used as the fluidizing gas; and the objects coated are aluminium and cold-rolled steel cylinders, and in (6) and (7) "Bonderised" (Registered Trade Mark) steel panels which are given two coats. Metal surfaces are preferably first degreased.ALSO:A composition for use in fluidized-bed coating (see Group III) comprises a particulate physical mixture of (i) a solid glycidyl polyether of a polyhydric phenol having a 1,2-epoxide equivalency greater than one and (ii) pyromellitic dianhydride, the particles of the mixture all passing through a 50-mesh and being held by a 220-mesh Tyler screen, there being 0,5-1,5 anhydride groups of (ii) for each epoxy group of (i). The compounds (i) used in the examples are bisphenol A/epichlorhydrin condensates of various molecular weights, and the tetraglycidyl ether of 1,1,2,2,-tetraphenylol ethane.
Patent GB-762502-A (GB)
Title: Improvements in or relating to box-making machines
Inventor: SILLARS GEORGE STIRLING
IPC: B31B3/64
Filed: 1953-12-10
Abstract: 762,502. Making boxes. HOAGUE-SPRAGUE CORPORATION. Dec. 10, 1954 [Dec. 10, 1953], No. 34362/53. Class 18. [Also in Group XXIX] A machine for folding up and securing the end walls of tray form boxes or lids has means for folding, gluing and pressing the end walls similar to those shown in Specification 537,843 but the pressing means is operated by fluid pressure moving a piston rod actuating the pressing members. The box end is positioned on a plate 50 and in being moved onto the plate, it operates a trigger 72 which through switch 224 and a solenoid causes fluid from a pressure accumulator 176 fed by a pump 162 to enter beneath a piston 98. The piston rod 96 rises, rotating a lever 130 which through a link 140 resiliently connected to an arm 150, slides an abutment 82 over the plate 50 and box end. Continued upward movement of the rod 96 brings it into contact with the plate 50 which presses the box end against the abutment 82. The final movement of the rod 96 operates a switch 230 which exhausts fluid below the piston and permits a spring 222 to return the parts 82 and 96 to their original positions. U.S.A. Specifications 2,338,138 and 2,393,383 also are referred to.
Patent GB-762968-A (GB)
Title: Improvements in cleaning devices
Inventor: DESMOND ERIC
IPC: C23G3/00
Filed: 1953-12-10
Abstract: <PICT:0762968/III/1> In apparatus for cleaning dirty articles by subjecting them to the combined action of a solvent and agitation, the apparatus comprises an elongated carrier for a number of articles immersed towards one end below the surface of the solvent and extending above the surface towards the other end, together with means to apply a vibratory motion to the carrier so that articles deposited at the end of the carrier below the liquid surface are fed along the carrier and eventually out of the solvent.  As shown, a cylindrical drum 14, containing solvent in the lower part, is carried by three elongated laminated steel spring members 11, 12, 13 (not shown) disposed in the configuration of a three-start eight-handed screw carried on a base plate 4 and surrounding an electromagnet 8, the base-plate 4 being mounted on a massive base-plate 1 through resilient pads 5, 6, 7.  The electromagnet has an E-shaped core 9 with a winding 10 on its central limb.  An I-shaped armature 15 is attached to the base of the drum and lies over the ends of the limbs of the core 9.  The drum is open at its upper end and has attached to its inside wall a shallow trough 17 in the form of a left-handed helix, its lower end being adjacent to the base and its upper end adjacent the open end of the drum to act as the carrier for the articles.  A bridging member 19 connects a pair of pillars 2, 3 from the baseplate 1 at their upper ends.  This carries a cover 20 enclosing without touching the open end of the drum 14.  A vertical feeding tube (not shown) for the articles, its lower end adjacent to the lower end of the trough 17, is carried by the cover.  The bridging member 19 also supports an electric heating element 24, a thermostat 26, a cooling tube 27, and a vertical tube 30 which carries a pump 31 for supplying solvent from its inlet 33 through a pipe 34 to a jet 35.  In operation, with the electromagnet supplied with normal alternating current, the drum has imparted to it, under the influence of the electromagnet and the spring members 11, 12, 13, an oscillatory motion having components both in the direction of the driven axis and about that axis.  This results in an article on the trough being gradually fed along the trough towards its upper end. Articles from the feeding tube are thus fed upwards on the trough at first through the solvent, then past the jet 35, and finally drain and dry before issuing from the trough.  Vapour condenses on the tube 27 and is returned to the drum.  The pump 31 may be arranged in a sump below the cooling tube 27.
Patent GB-1002860-A (GB)
Title: Azathioxanthene derivatives
IPC: C07D495/04
Filed: 1962-09-07
Abstract: The invention comprises compounds of general formula <FORM:1002860/C2/1> wherein A represents a straight or branchedchain alkylene group containing 2 to 6 carbon atoms and such that the carbon atom linked to the azathioxanthene nucleus is primary or secondary, and Z represents a dialkylamino group in which each alkyl group contains not more than 6 carbon atoms; non-toxic acid addition and quaternary ammonium salts thereof; and their preparation by (1) reacting a 10-(alkali metal)-derivative of 1-azathioxanthene with a compound X-A-Z where X is the acid residue of a reactive ester, (2) reducing by known methods a 10 - hydroxy - 10 - (AZ) - azathioxanthene, (3) hydrogenating by known methods a 10-(BZ)-azathioxanthene where B is an alkanylidene radical corresponding to A.  Separation of optical isomers is mentioned. Other processes outlined are (1) reaction of a 10-(AX)-azathioxanthene with a compound HZ, (2) reduction of a corresponding 10-(dialkylamido-alkylene)-azathioxanthene, and (3) reaction of 10-halo-azathioxanthenes with Grignard reagents.  10 - Hydroxy - 10 - (AZ) - azathioxanthenes are prepared by reaction of 10-oxo-azathioxanthene with organo-metallic, e.g. Grignard, derivatives containing -AZ; dehydration yields 10-(BZ)-azathioxanthenes. Salts of starting materials are obtainable. 10 - (Dialkylamido - alkylene) - azathioxenthenes may be prepared from corresponding acid chlorides and compounds HZ.  10 - Oxo - azathioxanthene is prepared from 2-carboxy - 3 - phenylthiopyridine in tetrahydrofuran, and yields the azathioxanthene on reduction with hydrazine.  Pharmaceutical compositions comprise compounds I and salts of the invention with pharmaceutical carriers or coatings. Oral (tablets, pills, powders, granules, capsules, emulsions, solutions, suspensions, syrups, elixirs), parenteral (solutions, suspensions, emulsions) and rectal (suppositories) administration is mentioned. They have antihistaminic, spasmolytic, antitursive and analgesic effects.
Patent GB-893986-A (GB)
Title: Improvements relating to electrical impulsing devices
Inventor: DONE MAURICE LAWTON
IPC: H03K3/45
Filed: 1958-10-28
Abstract: 893,986. Electric selective signalling systems. FERRANTI Ltd. Oct. 27, 1959 [Oct. 28, 1958], No. 34418/58. Class 40 (1). A device for producing pulses in dependence upon the rotation of a shaft comprises a crystal exhibiting the Hall effect in respect of three mutually perpendicular axes X, Y, Z, means for passing a polarizing current through the crystal in the X-direction, a magnetic device to apply a repetitive magnetic field to the crystal in the Y-direction, and output means for receiving the pulses thus produced along the Z-direction. A crystal 12 is polarized by a generator 13<SP>1</SP> passing a current through it in the X-direction, and is subjected to a magnetic field in the Y-direction produced by a magnet 16 rotating on a shaft 15. The Hall voltage is in phase with the polarizing current when the field has one sense and in counterphase when it has the other. Leads 17, passing via an A.C. amplifier 51 and a transformer 52, supply the Hall voltage to a conventional phase discriminator 53 using the output of generator 13<SP>1</SP> as a reference signal. In known manner the discriminator produces a D.C. voltage between terminals 61, 62, which is of one sense when the reference signals and input are in phase and of the other sense when they are not. The repetition frequency of the pulses is dependent upon the rotation of the magnet 16, and hence also upon its driving-shaft 15. In modifications the magnet 16 may be replaced by an arrangement of magnets whose field does not alternate, so producing signals of only one polarity. D.C. polarization of the crystal may be used. If A.C. polarization is used and the magnetic component is such that the applied fields are of like sense the discriminator would be replaced by a rectifier to produce a unidirectional pulse for each A.C. cycle. The device is described as for use in an electric meter.
Patent GB-842730-A (GB)
Title: Improvements in appliances for spraying paint or the like
Inventor: SMITH WILLOUGHBY ARTHUR
IPC: B05B3/02
Filed: 1956-11-10
Abstract: 842,730. Spray-producers. GLAZEX PRODUCTS Ltd. Feb. 6, 1958 [Nov. 10, 1956], No. 34422/56. Class 69 (3). Liquid flows from a container 16 and valve 14 to the upper part of a rotary brush 4 having its spindle 2 driven by an electric motor within a casing 1. A plate 9 is located in the path of the brush bristles and causes the liquid thereon to be flicked through a slot 8 in the wall of the brush casing 3. The latter is detachably secured to a ring 7a forming part of the motor casing, and the brush spindle has a pin 6 for engagement with the motor shaft. A helical groove in the brush spindle receives the bristles. The plate 9 is slotted to receive a fixing screw 12 and is vertically adjustable and guided within lugs 11 on an angle plate 10; plates 17 are located at each side of the flicker plate. Alternatively, the liquid may be fed by air pressure within the container which may be separate from the casing 3.
Patent GB-1042408-A (GB)
Title: Asynchronous self controlled shift register
IPC: G06F5/08
Filed: 1963-08-30
Abstract: 1,042,408. Logic circuits. SPERRY RAND CORPORATION. Aug. 30, 1963 [Sept. 6, 1962], No. 34472/63. Heading H3T. [Also in Division G4] In a shift register (see Divisions G4-G6), each stage, such as stage n, Fig. 2 (not shown), comprises a plurality of AND-INVERTER gates A-G, each gate comprising a transistor and associated input diodes, and providing a high output if and only if all the inputs are low. Gates A-C form a " storage area " in which storage of a " 1," " 0 " and an " empty " state are represented by the gate outputs, Fig. 2a (not shown). Gates D, E are transfer gates effective to transfer a " 1 " and a " 0 " respectively to stage n + 1 and are enabled by a " control " gate F when stage n + 1 is empty, a " control " gate G being effective to reset stage n to " empty." Initially, a " preclear " signal on a line 43 sets all the stages to " empty." Assuming that the first input infornation pulse from stage n - 1 is " 0," a signal on line 45n - 1 causes gate C to go negative and gate B to go positive. When a steady state is achieved, and the " 0 " input signal ceases, the transfer gate E becomes positive to transfer the " 0 " to the stage n +1 assuming that a signal on line 49n + 1 is present, indicating that stage n + 1 is empty, this signal causing control gate F to provide an enabling signal to transfer gates D and E. When a stage n + receives the "0," its gate C goes negative thereby applying a signal on lead 49n + 1 to the control gates F, G of stage n causing gate G to go positive thereby resetting gates A, B, C in stage n so that stage n registers " empty " and can receive a further input from stage n - 1. The action for an input " I " bit is analogous to an input " 0."