baber/WOPTO huggingface dataset:
Patent GB-473403-A (GB)
Title: Machine for the tooling of metallic screw propeller blades
IPC: B23Q3/00
Filed: 1937-03-31
Abstract: 473,403. Copying-lathes. COMPAGNIE DE FIVES-LILLE. March 31, 1937, No. 9155. Convention date, April 2, 1936. [Class 83 (iii)] Chucks.-In a machine for machining metallic screw propeller blades by means of pattern-controlled milling cutters whilst the work and pattern are rotated synchronously about parallel axes, these axes are arranged vertically and the work is placed under axial tension and is driven at both ends. Two vertical columns b are carried by a base a and are connected by beams c which support further vertical columns b<1>. A beam f slidable vertically on the columns b, b<1> carries headstocks g for a number of workpieces h and a pattern h<1>, and is adjusted by means of screws f rotated by bevel gears f<3> and a cross-shaft. Saddles d on the columns b, b<1> carry a horizontally movable bar e by means of vertical and horizontal roller bearings d<1> and are fed vertically by three screws d<3> rotated by bevel gears d<5> and a cross-shaft in the base a. Headstocks i on the bar e drive milling cutters and a further head i<1> carries a tracer roller j<1>, for engaging the pattern h<1>. The bar e is fed vertically as the workpieces and pattern rotate, the tracer j<1> being kept in contact with the pattern by a weight e<1>. The lower flanges h<2>, Fig. 5, of the workpieces h are held by clamping dogs k<1> and T-headed screws k<2> to plates k driven by pinions k<5> keyed to vertical shafts l, and upper spigots h<3>, Fig. 4, on the work are clamped by split collets p to sockets p' on driving plates p<3> rotated by pinions q on the shafts l. The headstocks g carrying the plates p<3> are vertically adjustable on slides r supported by the beam f by means of hand-operated worms r<1> engaging worm wheels on screws r<3> engaging nuts on the headstocks, for the purpose of applying axial tension to the workpieces. The driving plates p<3> and the pinions q are mounted in ball thrusts and bearings in order to absorb the axial tension. The shafts l are driven by a cross-shaft o<3> carrying helical gears o<2> engaging similar gears o<1> on the shafts, the shaft o<3> being rotated by bevel gears o<4> and a vertical shaft o<5>. The workpieces and pattern are supported and driven intermediate their ends by members m, Figs. 6 and 7, formed in two parts with a recess m<1> for the work &c. Spring plungers n engage the work h from opposite sides and the members m are keyed to gears m<4> driven by gears o formed integral with the gears o<1>. The members m may be fixed vertically or may be fed downwards, together with the bar e, by means of screws and nuts (not shown).
Patent GB-597270-A (GB)
Title: Process for the recovery of waste imitation leather products
IPC: B29B17/00
Filed: 1945-04-12
Abstract: Sheets are made from artificial leather waste, initially manufactured by the agglutination of fibrous substances by means of a thermoplastic synthetic resin agglomerant, by passing the waste several times through grinding rolls which are heated to a temperature of from 50 DEG  to 80 DEG  C., whereupon the material is sheeted in a calender.  The resins specified are vinylic, acrylic or cumarone resins.  Additional products such as plasticising agents thermoplastic resins and fillers such as kaolin, mineral, vegetable or animal fibres may be added during treatment on the grinding rolls, which are preferably constituted by two hollow cylinders rotating at different speeds with the ratio of the angular velocities between 1/5 and 1/2 .ALSO:Sheets are made from artificial leather waste initially manufactured by the agglutination of fibrous substances by means of a polyvinyl or other thermoplastic synthetic resin as agglomerant by passing the waste several times through grinding rolls which are heated to a temperature of from 50 to 80 DEG C. whereafter the material is drawn in a calender.  Fibrous filling material such as animal, mineral or vegetable fibres and a filler such as kaolin may be added and to increase the elasticity of the final product a vinylic resin which has been previously plasticised by means of triphenyl phosphate or similar substance may also be added.
Patent GB-650482-A (GB)
Title: Improvements in the manufacture of margarine
Inventor: ROURKE JOHN
IPC: A23D7/02
Filed: 1948-04-01
Abstract: <PICT:0650482/III/1> An apparatus for homogenizing partially crystallized margarine produced by a process of simultaneous rapid chilling and emulsification comprises a plurality of mesh screens arranged in succession in the path of the margarine and one or more deflecting surfaces for changing suddenly the direction of flow of the margarine after passage through one screen and before passage through a subsequent screen.  As shown, a wire gauze cylinder 1, closed at one end by a plate 5, is contained within a tube 2 having flanges 3, 4 at its ends.  Baffle plates 6, 7, 8, and 9 are arranged to create a zig-zag path for the material passed therethrough. Flange 3 is connected to a flange 10 at the exit end of tube 11, and flange 4 to a flange 12 at the inlet end of a conical expansion segment 13 which is connected to a crystallizing unit in which the material sets to its final consistency.  Other modifications are described.  Specification 650,481, [Group I], is referred to.
Patent GB-913190-A (GB)
Title: Improvements in or relating to data processing equipment
IPC: G06F3/06
Filed: 1960-03-16
Abstract: 913,190. Magnetic tape data storage apparatus. BURROUGHS CORPORATION. March 16, 1960 [April 20, 1959], No. 9248/60. Class 106(1). A magnetic tape store 134 is searched by comparison of part of each stored word with the corresponding part of a word fetched from memory 10 and transferred to a T- register 28 where it is recirculated in synchronism with data read from the tape by clock pulses generated by 148 and passed by gate 150. Memory 10 consists of a magnetic core matrix store 12 with address register AB and a buffer store IB through which words each of ten fourbit digits pass to and from the store. When the word read out from store is an instruction it is transferred via gate 51 to command register 50; such an instruction word consists of three parts, namely a memory address (right-hand four digits of 50), an order (next two digits) and instruction modifiers (left-hand four digits). The order and modifiers are applied to a logic circuit 55 which commands execution of the programme step. If this step is a magnetic tape search, the modifier V 3  may call for " field selection," that is comparison of only a part of each word stored on tape with the corresponding part of the word at the address specified. If this is so, modifiers V 1  and V 2  specify the start and length of this field respectively. The word in memory is now selected by register 14 and transferred to buffer 16, whence it is shifted out serially through gate 30 to T- register 28, although if field selection is called for gate 30 is only opened to pass selected digits into 28, gate 115 being opened at other digit periods to enter " 15 " into other positions (15  being otherwise a " forbidden digit "). The tape unit 130 is now started by an OC pulse to flip-flop 140, and data words read out are compared in 146 with the contents of register 28 which is read out and recirculated by tape clock pulses via gate 150. Any digit 15 from 28 passes a signal through gate 166 to indicate " equality," so if comparison of the field digits also show equality the output of inverter 152 will always be low and flip-flop 160 which is reset at each word time by counter 164 will remain reset and gate 162 will pass a " word end " signal to reset 140 and stop the tape. If, however, an inequality has been inverted by 152 to set 160 no such signal will be passed, and tape scanning proceeds. During scanning of the tape the computer is free to carry out further operations. Figs. 2 and 3 (not shown) illustrate in block and logical circuitry form respectively the arrangement for producing the necessary timing signals. Specifications 889,290 and 890,323 are referred to.
Patent GB-100846-A (GB)
Title: Improvements in and relating to Printing Machines.
IPC: B41F3/80
Filed: 1916-07-04
Abstract: 100,846. Winkler, Fallert, & Co. June 25, 1915, [Convention date]. Cylinder machines; tripping-arrangements.-In machines in which the impression cylinder is capable of being tripped bodily to and from the forme, and is driven by a spur gear on a stationary journal, such gear having a sliding slot and pin connexion with the cylinder, the spur gear itself is slotted radially, and the pin engaging the slot is directly fixed to the impression cylinder. As shown applied to a machine with a reciprocating bed, the shaft a of the cylinder b is moved for tripping by an eccentric bearing c rocked by an arm d and rod e in usual manner. The spur-gear f is journaled on a stationary bearing h of the frame i through which the shaft a passes. This spur-gear is driven by, and remains in gear with, the bed-rack g, and drives the cylinder by means of a pin k in the cylinder carrying a block l engaging a slot m in the gear.
Patent GB-234954-A (GB)
Title: Improvement in battery separator plate
IPC: H01M50/463
Filed: 1924-04-14
Abstract: 234,954. Stone, W. B. April 14, 1924. Scparators for secondary batteries comprise a number of closely spaced parallel ribs 13 connected by more widely spaced ribs 12. The two sets of ribs may be at right angles or otherwise. The ribs may be formed by grooving opposite faces of a plate of hard rubber &c., the grooves being deep enough to provide slots or openings through the plate between the ribs, and the grooves between the ribs 13 may be deep enough to enter the ribs 12, as in Fig. 6. In use, the ribs 13 are placed against the battery plate 14, and a diaphragm of wood 15 against the ribs 12. The plate 14 may be enclosed between two such separators, held together at their edges by grooved retaining strips.
Patent GB-144614-A (GB)
Title: Improved process of and apparatus for controlling the temperature of chemical reactions
IPC: G01K11/02
Filed: 1920-04-01
Abstract: 144,614. Barrett Co., (Assignees of Downs, C. R.). June 11, 1919, [Convention date]. A l d e n y d e s ; a n t h r a q uinone; carboxylic acids; chlor-hydrocarbons. -In the oxidation of naphthalene to phthalic acid, of anthracene to anthraquinone, of benzene to maleic acid, and of toluene to benzoic acid and benzaldehyde, the temperature is controlled and maintained substantially constant by absorbing the heat of reaction in mercury merely as latent heat of vaporization, the mercury being contained in a closed vessel so that the vapours can be condensed and the condensed liquid returned, and so that the temperature of vaporization can be controlled by varying the pressure to which the mercury is subjected. In a suitable apparatus, a series of tubes 5 closed at their lower ends, partly filled with mercury and connected to a common header 6, are inserted in a bed 3 of catalyst resting on a perforated plate 2 and provided with electric heating-means 4 and a deflector 8; the header is connected by a valve V to a pump 7 which may be used to create a vacuum or pressure within the tube in order to adjust the boiling-point of the mercury, or may serve for the introduction of a neutral gas, for example, nitrogen. The mercury in the tubes is vaporized by the heat evolved in the reaction, and the vapours are condensed in the upper parts of the tubes, and the resulting liquid runs back and is again vaporized; or the condensation may be effected by the oncoming gases which are passed through a jacket surrounding the upper parts of the tubes. The Specification as open to inspection under Sect. 91 (3) (a) includes the use of liquids other than mercury, and refers also to the oxidation of alcohol to acetaldehyde, and to the chlorination of hydrocarbons. This subject-matter does not appear in the Specification as accepted.
Patent GB-1441885-A (GB)
Title: Trailing wheel aircraft undercarriage assembly
IPC: B64C25/12
Filed: 1974-03-04
Abstract: 1441885 Aircraft undercarriages MESSIERHISPANO 4 March 1974 [5 March 1973] 9643/74 Heading B7G An aircraft undercarriage capable of sideways retraction has a wheel or wheels mounted on a lever arm which is rotated upwardly during the initial part of retraction movement to shorten the undercarriage. A leg 6 is pivoted at 15 and 17 to the fuselage for sideways retraction and is braced fore-and-aft by triangulated bracing members 12, 14, a wheel-carrying lever arm 4 being mounted on pivot 5 on the leg and biased downwardly by a shock absorber 8 which is connected at its upper end 19 to a cranked lever 18 in turn carried by a pivot pin 21 for rotational movement on the leg. Fast also with pin 21 is another lever 24 connected to a fixed point 27 on the aircraft by a strut 26. A lostmotion telescopic link 10 connects an arm on lever 18 to a point 9 on lever arm 4. A collapsible bracing member 28 locks the undercarriage in the down position and a jack 31 effects, retraction and extension. In operation, with brace 28 broken, jack 31 shortens to rock leg 5 about pviots 15, 17 and because pivot 27 is offset inwardly from pivots 15, 17 strut 26 causes levers 24, 18 to rock on pivot 21 and, through link 10 in its extended condition, draws lever arm 4 upwardly about pivot 5 against the resistance of shock abosrber 8, the geometry of the mechanism being such that the shock absorber resists the action of jack 31 during the first part of the retraction movement and assists it during the latter part. When the undercarriage is extended rocking of lever arm 4 results in free telescopic movement of link 10.
Patent GB-544225-A (GB)
Title: Improvements in electric discharge tubes comprising secondary emission electrodes
IPC: H01J43/02
Filed: 1940-06-03
Abstract: 544,225. Electron multipliers. MULLARD RADIO VALVE CO., Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). June 3, 1940, No. 9704. [A Specification was laid open to inspection under Sect. 91 of the Acts, Dec. 7, 1940.] Drawings to Specification. [Class 39 (i)] The subject-matter of this Specification is identical with that of Specification 629,881, [Group XL (a)].
Patent GB-330675-A (GB)
Title: Improvements in vacuum electric tube devices
IPC: H01J1/18
Filed: 1929-03-26
Abstract: 330,675. Robinson, E. Y., and Associated Electrical Industries, Ltd. March 26, 1929. Addition to 222,176. Vacuum tubes.-Each leg of a filament cathode or cathode-heater comprising one or more approximately straight legs is corstrained at each end, one of the constraining means being extensible to provide end-tension, and a rigid support such as a hook touches, the cathode at an intermediate point and is rigidly supported and laterally displaced, preferably a. very small distance, so that the cathode bears against one side of the hook and is slightly bent. The registering eye described in the parent Specification can thus be safely replaced by an open hook. A hairpin filament may be fixed to leads 15, Fig. 5, and tensioned by a hooked spring 19, and hooks 4, 5 are then soldered to the grid supports 7 to draw the legs of the filament slightly apart. A mica cross-piece 20 positions the supports 13, 7 for the flattened tubular anode and grid. The hooks 4, 5, and in some forms, the hook supporting the bight of the filament, may be coated with insulation as in Specification 285,537. The hooks 4, 5 may be secured to a wire framework or to one or more. central standards secured in the pinch and may draw the filament legs towards each other. In a modification, Fig. 4, a straight wire 11 coated with quartz or porcelain is secured across the grid and the grid is bent about the wire 11, preferably after mounting the filament, so that the filament bears against the wire 11. Two or more hooks may draw a single filament-leg in alternately opposite directions. The tension on the filament may be temporarily or permanently removed on heating. Equipotential cathodes may be similarly registered. Two heater-filaments in series or parallel and coated with insulation as in Specification 278,787 may be tensioned by wires 26, Fig. 6, and registered by separate or integral hooks 30 engaging the nickel tubular cathodes 29 and secured to a central standard 24 which may form the lead to the tubes 29. An insulated hairpin heater in a single tubular cathode may be registered by a hook engaging the cathode. The cathode may be bent as shown in Fig. 6, or only sufficiently to press the heater and cathode together.
Patent GB-679350-A (GB)
Title: Improvements relating to automatic weapons
IPC: F41A9/54
Filed: 1951-04-26
Abstract: 679,350. Automatic firearms. AKTIEBOLAGET BOFORS. April 26, 1951. [April 28, 1950] No. 9778/51. Classes 92 (i) and 92 (ii). The loading tray 23 of an automatic fire-arm is so pivoted that in one position it acts as a guide for the round fed to the barrel and in another position as a guide for the ejected cartridge case, the tray being rocked by a pair of levers 7, 11, when the gun recoils. The gun shown has a fixed bracket 9 having a shaft 8 upon which are pivoted the two levers 7, 11. An arm 21 pivoted at 13 on the lever 7 has a spring-urged piston 15 engaging a surface 17 on the lever, and is adapted to engage a notch 14 in the arm 11. When a round is fired a rail 3 recoils with the gun barrel and a groove 4 in the rail, by engaging a roller 5 on the lever 7, serves to lift the lever 11, and the latter raises a member 20 against the action of a spring 21. The member 20 in turn raises the tray 23 to a position in which its undersurface serves to guide the ejected cartridge case downwardly. An extension 10 of the bracket 9 is eventually engaged by a lug 18 on the arm 12 to disconnect the arm from the lever 11. The lever then moves downwards under the action of its spring and a further spring 24 serves to return the tray to the position shown where it acts as a guide for the next round. The lever 11 is subsequently re-engaged by the arm 12 when the groove 4 returns the levers to the position shown during the run-out.
Patent GB-243227-A (GB)
Title: Automatic candle light extinguisher
IPC: F23Q25/00
Filed: 1925-04-16
Abstract: 243,227. Davies, J. C. April 16, 1925. Extinguishing candles. - An automatic candle extinguisher comprises a spring clip a adapted to grip the candle, an extinguishing cap b attached to the clip a by a spring hinge g, and an arm c which is attached by a spring hinge h to the cap b and carries a pin d fixed in position by a small plate f. The spring clip is attached to the candle in such a position that the pin d may be inserted in the candle at the point to which it is required to burn. The melting of the grease around the pin allows the spring hinge h to swing the arm c clear of the candle and the spring hinge g then turns the cap b into the extinguishing position. The movements of the cap b and arm c are limited by stops e, e<1> on the clip a.
Patent GB-752876-A (GB)
Title: Improvements in and relating to bis-aryl-hydrazo compounds
Inventor: DRAIN DAVID JOHN
IPC: C07C241/02
Filed: 1953-04-11
Abstract: The invention comprises 4 : 41-hydrazo-bissalicylic acid and its alkali metal salts, esters and acylated esters; and their preparation by the following methods: (1) An ester of 4 : 41-hydrazo-bis-salicylic acid is prepared by oxidizing an ester of 2-hydroxy-4-aminobenzoic acid by means of a peroxide or a per salt and then reducing the azoxy compound so produced.  This intermediate may be acylated before reduction or the final product may be acylated.  The reduction can be effected by means of zinc and acetic acid or zinc and an ammonium salt.  The oxidation is preferably carried out in the presence of boric acid or of a borate such as sodium perborate.  The esters and acylated derivatives can be saponified with caustic alkali to give the alkali metal salts of the hydroxy acids.  (2) An alkali metal salt of 4 : 41-hydrazobis-salicylic acid is prepared by reducing 2 - hydroxy - 4 - nitro - benzoic acid under alkaline conditions, e.g. with zinc and caustic alkali, the free acid being obtained by acidification. Oxidation of an ester or acylated ester of 4- 41 - hydrazo - bis - salicylic acid, e.g. with sodium perborate, gives the corresponding azo compound which gives the hydrazo compound again on reduction.  In examples, methyl-p-aminosalicylate is oxidized to 3 : 31-dihydroxy4 : 41 - dicarbomethoxy - azoxy - benzene which is reduced with zinc dust and either acetic acid or ammonium chloride to give the corresponding hydrazo compound.  The diethyl ester is similarly prepared.  The dimethyl ester is benzoylated and acetylated and the benzoyl derivative is also prepared by benzoylation of 3 : 31 - dihydroxy - 4 : 41 - dicarbo - methoxy - azoxy-benzene with subsequent reduction to the hydrazo compound. 3 : 31 - Dihydroxy - 4 : 41 - dicarboxy-hydrazobenzene is prepared by alkaline hydrolysis of the corresponding dimethyl ester and also by alkaline reduction of 2-hydroxy-4-nitrobenzoic acid.  In the Provisional Specification the product of oxidation by means of a peroxide or per salt of an ester of para-amino salicylic acid is stated to be an ester of 4 : 41-azo-bis-salicylic acid which is stated to yield an ester of 4 : 41-hydrazo-bis-salicylic acid on reduction, and examples describe the reduction of methyl and ethyl 4 : 41-azo-bis-salicylates to the corresponding hydrazo compounds by means of zinc dust and ammonium chloride.
Patent GB-199524-A (GB)
Title: Improvements in the manufacture of teapots
IPC: B28B1/26
Filed: 1922-04-07
Abstract: 199,524. Croxton, W. W. A. April 7,1922. Casting hollow-ware. - Tea-pots are cast with integral spout, body, and handle, from slip in a twopart mould having meeting projections D', E<1>, adapted to form perforations transversely of the spout adjacent the body, and to provide perforations A, B, C, between the body and spout.
Patent GB-233328-A (GB)
IPC: E01B29/46
Filed: 1925-04-16
Abstract: 233,328. Schultz, H. May 1, 1924, [Convention date]. Sawing.-The Specification as open to inspection under Sect. 91 (3) (a) states that clamping apparatus for positioning and holding together the ends of rails and the like during welding in which each rail b is pressed by a screw h, wedge &c. against the horizontal face g and one of the vertical faces f of a recess in each of a pair of longitudinally adjustable frames a so as to clamp rails of different forms and sizes, is applicable for clamping saws upon rails. This subjectmatter does not appear in the Specification as accepted.