baber/WOPTO huggingface dataset:
Patent GB-394483-A (GB)
Title: Improvements in weighing scales
IPC: G01G7/04
Filed: 1932-06-14
Abstract: 394,483. Electric signalling systems. TOLEDO SCALE MANUFACTURING CO., Monroe Street, Toledo, Ohio, U.S.A. June 14, 1932, No. 16794. Convention date, Dec. 18, 1931. [Class 40 (i).] A weighing-scale has load-counterbalancing means operated by an electromagnetic force (produced, for example, by a solenoid and armature), the intensity of which force is varied in accordance with the weight of the load by intangible means (for example, light, infra-red, ultra-violet, cathode or X-rays or radio waves) comprising an emanation originating from a source which is independent of the counterbalancing means and of the weighing mechanism of the scale. As shown in Fig. 1, the load on the weighing platform is transmitted bv a rod 9 to an intermediate lever 10 fulcrumed on a bracket 11 and connected at its free end by a rod 15 to the armature 16 of a solenoid 17. A bracket supporting the solenoid also supports the fulcrum 24 of a lever 25 which is loaded with a weight 28 at one side of the fulcrum and is connected at the other side to the upper end of the solenoid armature. The free end of the lever 25 is provided with a thin blade 34 arranged to intercept the light passing from an electric lamp 39 to a photo-electric cell 38. In the unloaded position of the weighing scale the obstructing blade 34 permits a small amount of light to reach the photo-electric cell and (acting through a series of amplifying thermionic tubes 61, Fig. 7) energize the solenoid 17 sufficiently to counterbalance the dead weight of the lever system and to maintain the indicating pointer 42 of an ammeter type of indicator in the zero position. Adjustment of the zero position of the pointer may be made by means of potentiometers 62 tapped from the secondary windings of a transformer 52 in the supply system. A load placed on the scale platform deflects the obstructing blade 34 and admits more light to the photo-electric cell resulting in a stronger energization of the solenoid 17 to resist the load and a proportional displacement of the indicating pointer 42 to indicate the load. The indicating capacity of indicator may be increased by a resistance 75 shunted across the indicator by a manuallyoperated switch 76. When it is desired to indicate the weight at a distance further indicators A of the ammeter type are placed in series with the indicator referred to above. In a modification suitable for dealing with very heavy loads, the thermionic tubes are replaced by vapour arc rectifying tubes.
Patent GB-567973-A (GB)
Title: Methods of jointing paper and other non-metallic rods and tubes
IPC: B29C53/56
Filed: 1942-11-26
Abstract: 567,973. Pipe couplings. GOLDSTAUB, H. H. Nov. 26, 1942, Nos. 16803 and 16805. [Class 99 (i)] [Also in Group XXXVI] Paper and like tubes of the kind formed by winding sheet material spirally with an adhesive are jointed by making their ends of interengaging conical or ball-and-socket form and securing the junction by adhesive and the application of heat or pressure or both. The spigot and socket ends may be formed during the rolling of the tube and metal reinforcement may be provided in sheet, strip or rod form. An intermediate metal foil convolution g may project beyond the ends of the tubes and cut so as to form fingers h which are folded together to form an electrical contact. The metal reinforcement may also be mechanically connected.
Patent GB-585890-A (GB)
Title: Improvements in combined seat and bed furniture
IPC: A47C17/213
Filed: 1944-09-04
Abstract: 585,890. Bedsteads and seats. PETERSON, G. Y. M. Sept. 4, 1944, No. 16872. [Class 52 (ii)] A combined seat and bed comprises parts 7, 3, 6, 11 hinged together and disposed as shown in Fig. 2 when in seat position, the parts, when in the bed position, being aligned as shown in Fig. 1 while the part 7 is provided with rollers 8 which are adapted to roll up guides 9 so that the free end of the part 7 first rises above and clears the supports 45 secured to the back 1 and then swings downwardly to rest on the supports when the part 7 rises from the seat position to the bed position. The foot part 11 'is terminated in a cross stay 13 which carries swingable legs 35 connected together by a strap, the centre part of which forms a handle 34 for opening and closing the parts. In opening out the bed the handle 34 is pulled causing firstly the legs 35 to swing out into the supporting position, secondly the parts 11, 6 to swing down until the parts 6, 3 come into alignment, and thirdly the part 3 to swing about the pivots 5 carrying the part 7 with it into a horizontal position. Finally the foot part 11 and the foot board 41 are adjusted for use. Chain supporting surfaces 29, 30 are attached to the parts as shown by springs and a fabric cover 33 is provided. The foot board 41 is pivoted to the part 11 to enable it to be used for holding the mattress in position when the bed is folded up. A metal loop 16 with S- shaped limbs 17 attached to the part 6 forms the front of the seat part. in a modification two bed supports may be arranged side-by-side so that each may be operated independently, a narrow intermediate frame being provided to carry the pivot pins and guides.
Patent GB-138138-A (GB)
Title: Improvements in cartridge-feeding belts for machine guns and the like
IPC: F42B39/08
Filed: 1918-10-17
Abstract: 138,138. Fairfax, H. W. Gabbett-. Oct. 17, 1918. Cartridge belts.-Relates to metal-link belts, and consists in providing hinged spring cartridgeclips on each link, the clips turning down to release their hold on the cartridge as this is moved forwards out of the belt. Fig. 1 shows, in plan, a pair of similar links formed of stamped metal plate and united by removable hinge-pins D passing through rolled eyes B, C formed on the plates. The spaces E between the pins D serve for engagement with the belt-feed mechanism on the gun. As shown in end view in Fig. 3, the cartridge L is supported against a tongue H on a platform F having an inclined floor formed by stamping up a tongue G, Fig. 1. The spring cartridge clips are formed of U-shaped members J pivotally mounted in holes K in the sides of the platform F.
Patent GB-472536-A (GB)
Title: Improved gas mask
IPC: A62B18/10
Filed: 1937-06-18
Abstract: 472,536. Gas-masks. BOURCEY, E. F., and BOURCEY, R. I. June 18, 1937, Nos. 16994 and 16995. Convention dates, Feb. 1, and April 16. [Class 81 (ii)] A gas-mask comprises a rubber or rubberized cloth sleeve 1, engaging the face and having a window 2 of anti-mist material, and a conical chamber 3 with a circular rim 4 engaging the sleeve and having inhaling and exhaling ports A, B, diametrically opposite to one another. The inlet port A contains a two-diameter bush 6, 6a, screw threaded to carry a clamping nut 8 which holds the turned-in end of a screw socket 5 for the filter canister tightly against the chamber 3 with the aid of a packing ring 7. Packing 9 for the canister mouth is held by a sleeve 10 having lugs 10a turned over the packing 9 and a flange 10b held between packing 11 and a screw ring 12. The port B contains a twodiameter bush 16, 16a held therein by a screw ring 18 and packing 17. The part 16a contains a two-part valve casing 22, 24, and a valve cover 19 all flanged and held by a screw-ring 27 and packing 28. The parts 22, 24 are dished in opposite senses to enclose the valve and are apertured at 26, 23, Cover 19 is apertured on its lower side at 20 to protect the valve from rain, dust and the like. The exhaling valve comprises a metal disc 29 faced with rubber 30 and has a central spindle 31 passing through the ports 22, 24, and surrounded by a light spring 32. The valve seats on an annular elevation 24a in the part 24 and spindle 31 is protected by a cap 33 secured to part 24. The chamber 3 and all the associated parts are made of metal which is, or has been rendered unoxidizable.
Patent GB-1214515-A (GB)
Title: Indole derivatives and salts thereof
IPC: A61K33/12
Filed: 1968-04-09
Abstract: 1,214,515. Indole-derivatived carboxylic acids, esters and salts. SUMITOMO CHEMICAL CO. Ltd. 9 April, 1968 [11 April, 1967; 6 May, 1967; 8 May, 1967; 23 May, 1967; 27 May, 1967; 29 May, 1967; 8 Nov., 1967; 12 Dec., 1967; 14 Dec., 1967], No. 16995/68. Heading C2C. [Also in Division A5] Compounds of formula are prepared by heating at 40-200‹ C. acylated phenylhydrazones of formula wherein n is 0 or 1; R<SP>1</SP> is H, halogen, C 1-3  alkyl, C 1-3  alkoxy or C 1-3  alkylthio; R<SP>2</SP> is phenyl or naphthyl (possibly halogen or C 1-4 -alkyl, -alkoxy or -alkylthio substituted), or an OS- or N- 5- or 6-membered heterocyclic ring (possibly halogen-substituted); R<SP>3</SP> and R<SP>1</SP> are each H or C 1-3  alkyl; R<SP>5</SP> is H or C 1-4  alkyl; and [A] is an aliphatic carbon-chain (up to C 4 , possibly unsaturated and halogen-substituted). The above compounds (R<SP>5</SP>=H) may be converted into the corresponding salts or molecular compounds with Group I-III metals or organic amines; such derivatives are claimed per se when n = 1. Reference has been directed by the Comptroller to Specification 997,638.
Patent GB-581801-A (GB)
Title: Improvements in and relating to the magnetic depolarization of ships
IPC: B63G9/06
Filed: 1940-11-28
Abstract: 581,801. Automatic control systems for de-magnetizing ships. YOUNG, G. R. Nov. 28, 1940, No. 17021. Convention date, Nov. 29, 1939. [Class 38 (iv)] [Also in Group XXXIII] In apparatus for de-magnetizing iron ships comprising a strip B of copper which is wound one or more times around the hull A of the ship, and through which is passed an electric current which produces a magnetic flux in the opposite direction to that due to the natural magnetism, means are provided whereby the direction and strength of the current in the strip is automatically controlled so as to neutralize variable natural magnetism. In the form shown, the turns of the winding are wound around the hull transversely to its length, and are spaced at intervals, to co-operate with a magnetic relay V at one end of the ship, but the winding may be arranged longitudinally, or partly diagonally and partly longitudinally, to co-operate with a magnetic relay at the top or bottom of the ship. The apparatus includes a direct-current reversible generator E with commutator brushes C, D which is reversed by a reversible motor through gearing G, relays I, J connected to a battery K, and power supply leads M, N for the reversible motor. The relay V comprises a soft iron base R with polepieces R<1>, R<2> and a permanently magnetized pivoted needle S with a contact T, adjustable by a spring S<2>, which is movable between contacts L, L<1>. Should there be north or south magnetism in the ship, the iron base R will move the needle S against contact L<1> or L, and one of the relay coils I<1>, J<1> will be energized to attract an armature P on an insulated block O. The corresponding contacts M<2>, N<2> are brought into contact with the corresponding contacts M<1>, N', the reversible motor is started, the brushes C, D are moved in a clockwise or anticlockwise direction around the generator E, and current of the required direction and strength is passed through the strip B.
Patent GB-1075138-A (GB)
Title: A method for the preparation of polyhydroxy aromatic compositions
Inventor: STOESSER WESLEY CARL
IPC: C11B5/00
Filed: 1965-04-22
Abstract: Polyhydroxy aromatic compositions are prepared by reacting 1 mole of a chlorophenol with at least 4 moles of one or more alkali metal hydroxides or by reacting 1 mole of a chlorophenate with at least 3 moles of one or more alkali metal hydroxides at 200 DEG  to 350 DEG C. and maintaining the water content of the reaction mixture at between the equilibrium water content at 200 DEG  to 350 DEG  C. Complex mixtures including dihydric phenols, polyhydroxy-polyphenyl ethers and polyhydroxy-polyphenols are formed.  In the examples, sodium hydroxide is reacted with a crude chlorophenol comprising a mixture of o-chlorophenol, p-chlorophenol and small amounts of phenol and dichlorophenol.ALSO:Organisms may be killed by using various fractions of a polyhydroxy aromatic composition which mainly comprises dihydric phenols polyhydroxy-polyphenyl ethers and polyhydroxy polyphenyls and is prepared by reacting one mole of a chlorophenol with at least 4 moles of one or more alkali metal hydroxides or by reacting 1 mole of a chlorophenate with at least 3 moles of one or more alkali metal hydroxides at 200 DEG  to 350 DEG C, and maintaining the water content of the reaction mixture at between the equilibrium water content at 200 to 350 DEG C.  An Example describes the use of a fraction comprising mainly dihydroxydiphenyl ether and trihydroxy diphenyl and independently a fraction comprising mainly hydroxyphenoxyphenoxyphenol, hydroxyphenoxyphenylhydroxyphenol and tetrahydroxy triphenyl in an amount of 500 p.p.m. of water to give 100% kill of various organisms.
Patent GB-168460-A (GB)
Title: Improved means for starting automobile or other internal combustion engines
IPC: F02N1/02
Filed: 1920-06-24
Abstract: 168,460. Richardson, C. E. June 24, 1920. Turning-gear.-A starting-handle shaft is divided into two parts a, b connected through gear-wheels e, g, h, f so that the handle part b drives the part a at an increased speed, the gearwheels being arranged to slide with the shaft when the latter is pushed into engagement with the engine shaft. In the form shown, the wheels g, h are bolted together and slide on a fixed shaft i, but they may be fixed on a slidable shaft. The part b is loosely supported within the wheel e.
Patent GB-1489856-A (GB)
Title: Process for the preparation of propylene oxide
IPC: C07D301/14
Filed: 1976-04-28
Abstract: 1489856 Propylene oxide preparation BAYER AG and DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT 28 April 1976 [30 April 1975] 17173/76 Heading C2C The invention comprises a process for the continuous preparation of propylene oxide from propylene and aqueous hydrogen peroxide, characterized in that (a) an aqueous solution containing 15 to 45% by weight of a watersoluble acid catalyst and 25 to 35% by weight of hydrogen peroxide is reacted with propionic acid in a molar ratio of hydrogen peroxide : propionic acid of 0.8 to 1À5 : 1 at temperatures of from 10 to 70 C., (b) the resulting reaction mixture is extracted with benzene in countercurrent, (c) the aqueous raffinate from the extraction which contains in the main hydrogen peroxide and acid catalyst, is reconcentrated by removing water by distillation, (d) the reconcentrated raffinate is recycled into the reaction stage (a), the concentrations of hydrogen peroxide and acid catalyst being made up to those required for the reaction with propionic acid by reconcentrating the aqueous raffinate used in stage (c) together with all or part of the hydrogen peroxide required to restore the hydrogen peroxide concentration, (e) the benzene extract, which contains in the main perpropionic acid and propionic acid, is treated with water or an aqueous solution, (f) the watercontaining benzene extract, which is now virtually free from hydrogen peroxide, is subjected to an azeotropic distillation so that the residual water content in the sump of the azeotrope column is less than 0À5% by weight, (g) the solution, containing perpropionic acid and propionic acid, which is now obtained as the sump product from the azeotropic distillation, is reacted with excess propylene at temperatures of from 2 to 20 bars, and (g) the reaction mixture is worked up to produce propylene oxide, excess propylene which may be present, the propionic acid and the benzene being recovered.
Patent GB-352199-A (GB)
Title: Improvements in or relating to refining aluminium, magnesium and their alloys
IPC: C22B9/10
Filed: 1930-06-05
Abstract: Aluminium, magnesium, and their alloys are refined by the introduction into the molten metal of a hygroscopic compound, e.g. zinc chloride, or magnesium chloride, in the form of a hard homogeneous mass coated with a waterproof material such as wax, grease, oil, or commercial varnish.  Substances such as ammonium, sodium, potassium, lithium, or barium chlorides and potassium or sodium fluorides may be added to the hygroscopic compound in the formation of the mass.
Patent GB-612945-A (GB)
Title: Improvements relating to guards for presses and other like machines
IPC: F16P3/00
Filed: 1946-06-11
Abstract: 612,945. Machinery guards. UDAL, J. D., and MOORE, K. R. C. June 11, 1946, No. 17384. [Class 80 (iv)] In a press guard comprising sections b, b<1>, the guard b is mounted on a pivotal shaft d and is connected through links r, s to a pivoted lever p, having an extension p<1> adapted to enter a gap n in a hollow cylinder m mounted on the crank-shaft i or other rotatable part of the machine. A hooked lever t interconnected with lever p acts as a stop for an abutment k on the fly-wheel j when the guard is open. When the guard is closed, the clutch may be engaged, and a roller p<2> on the extension p<1> of the lever p then rides on the exterior of the disc m.
Patent GB-564979-A (GB)
Title: Improvements relating to building constructions and to bricks or blocks therefor
IPC: E04B2/02
Filed: 1943-10-22
Abstract: 564,979. Building blocks. DEELEY, W. H. Oct. 22, 1943, No. 17399. [Class 87 (i)] [Also in Group XV] A wall is constructed of hollow blocks 1 formed with a central partition 2 dividing the hollow space into two vertical through openings, the end walls 3 and partition 2 being provided with recesses 4, 5 at top and 4a, 5a at the bottom to receive blocks 10 which key together adjacent blocks in the course and also the blocks in adjacent courses. Cement grooves 6 are provided in the longitudinal edges. For a corner block recesses are provided at top and bottom of one face near one end, which latter is left entire. Toy building sets may be similarly constructed.
Patent GB-282300-A (GB)
Title: Improvements in holders for endless cinematographic films
IPC: G03B21/32
Filed: 1927-06-30
Abstract: 282,300. Limberg, A. June 30, 1927. Kinematograph apparatus. -. In filmholders a for housing endless films in folds h, and comprising a wall or partition c having an inlet p cn one side of it and an outlet f on the other side, the whole of the partition is rigid and inclined, and its lower end i may be curved. The inlet p may be vertical, as shown, or may be formed horizontally in the top of the holder. The outlet f may be formed at the top of a short passage d or at the top of a passage extending to the top of the holder; the passage may be somewhat narrower than the remainder of the holder. The holder a may carry a projector k.
Patent GB-249064-A (GB)
Title: Improvements in or relating to mechanism for controlling the driving gear of machines
IPC: B65H7/18
Filed: 1925-07-07
Abstract: 249,064. Toronto Type Foundry Co., Ltd., (Assignees of Tufts. L. R.). March 11, 1925, [Convention date]. Starting and stopping arrangements. - In manually or automatically controlled disengaging and braking means for clutchdriven machines such as the sheet-feeding machine described in Specification 240,760, the clutch and brake are operated by gear which is connected temporarily to a constantly-reciprocating member by the manual or automatic means. The clutch part b<1> slides on the shaft a<1> and engages a clutch part b on the driving-shaft a. When disengaged by a fork m, the clutch part b<1> engages a stationary brake surface b<2> on the frame to bring the machine to rest. A toothed rim on the part b<1> drives through gearing d, d<1> a shaft e<1> which carries an adjustable friction roller e gearing with a disc f on a shaft #<1> which drives the forwarding-roller #<2> transferring sheets and the forwarding-table k composed of rollers k<1> supplying a folding, printing, or like machine. The sheets are fed to the roller f<2> from conveyer belts i by a suction roller h<1> driven from the shaft f<1>. The rollers k<1> are driven by bevel gearing from the shaft a'. The clutch fork m is pivoted to a sliding rod n carrying a pivoted hook o which tends to fall by gravity into engagement with a rod p constantly reciprocated by a cam q and spring p<2>. During the operation of the machine, the hook o is raised from the rod p by an arm r<1> on a rock-shaft r, which may be rocked in either direction for starting or stopping by a linkage u<2>, ic' connected to a manuallyoperated slide rod t, or may be rocked automatically to allow the hook to engage the rod p for disengaging the clutch by a sheet detector device j, Fig. 3, operating when more than one sheet at a time is fed to the roller f<2>. The detectorwheel is carried loosely on the shaft of a wheel j<1> which co-operates with the roller f<2> in the feeding-operation and is pressed into contact with the sheets by a spring j<3>. A cam surface j<0> on the wheel j engages an extra sheet being fed so that the wheel is rotated and jammed against the sheets by the cam action and during its rotation brings an arm j<2> secured thereto into engagement with a lug r<2> on the shaft r to permit the hook o to fall upon the rod p, engagement with the recess p<3> of which takes place at the limit of the stroke, of the rod in the non-effective direction. Specification 242,538, [Class 100 (i), Feeding and delivering webs &c.], also is referred to.
Patent GB-709416-A (GB)
Title: Improvements in aircraft landing gear
Inventor: SMITH HORACE HENRY
IPC: B64C25/00
Filed: 1950-07-14
Abstract: 709,416. Aircraft undercarriages. DOWTY EQUIPMENT, Ltd. Oct. 12, 1951 [July 14, 1950], No. 17692/50. Class 4 In a levered suspension landing gear for aircraft the lever and the shock absorber are arranged radially within the rim of the landing wheel, the lever being united with a central hub within which the wheel spindle is rotatably mounted, and the shock absorbe is offset in the plane of the whee to one side of the hub and is offse laterally with respect to that par of the pillar which crosses the tyre and rim of the landing wheel, so that said shock absorber is wholly disposed between the lateral extremities of the pillar and the wheel. The leg 6 terminates in a lug 7 formed with a boss 8 which carries a bearing pin 11 fast with a pair of forks 13, 14 united by a hub 12. The fork 13 is arcuate in shape and is recessed into the lug 7 and the fork 14 is substantially disc shaped. The single disc wheel 15 has an axle 16 mounted in the hub 8 by bearings 17, 18. The lug 7 and a projection 42 on the boss 8 support a pivot pin 41 for an eye 39 on the end of the plunger 38 of a shock absorber, of which the cylinder 33 is pivotally mounted between the forks 13, 14 by a trunnion 34 so that deflection of the shock absorber is less than the corresponding movement of the wheel. The side of the wheel opposite the disc portion 15 is enclosed by a cowling 43 secured by screws to the hub 12 and to radial arms 45, 46 and 47 which extend from the arcuate fork 13. The arm 47 has an extension 48 which supports an inspection cover 49. The fork 14 may be the torque plate of a disc brake.