baber/WOPTO huggingface dataset:
Patent GB-625112-A (GB)
Title: Improvements in expansible wheels for changes of speed, especially for bicycles and the like
IPC: B62M9/08
Filed: 1946-05-30
Abstract: 625,112. Expanding - wheel chain - gear. REMAND, F. May 30, 1946, Nos. 16469 and 16470. Convention dates, Jan. 5, 1939 and April 15, 1939. [Class 80 (ii)] Relates to an expanding driving sprocket on a pedal-cycle comprising toothed segments 1, moved radially on guide-arms 7, secured to the driving pedal-crank spindle 9, by pedalling in the appropriate direction whilst a cam-plate 11, normally rotating with the sprocket, is released therefrom and locked stationary so that pins 14, projecting from the segments 7, move along a continuous groove 12 in the cam-plate. The cam-groove 12 consists mainly of concentric circular portions joined by inclines 13 which latter lie on a radius so disposed that, when the cam-plate 11 is stationed for a change, the segment pins 14 pass successively through. the inclined parts 13 to reach the circular part of next smaller or larger radius whilst the segments are out of engagement with the chain 3. According to this invention the outermost groove of the cam-plate 11 is connected back' to the innermost groove by a return groove 12a so that the sprocket reverts directly back to its smallest diameter after reaching its largest without changing the direction of rotation of the pedals. Movement of the segment-pins 14 across the grooves 13 intersecting the return groove may be facilitated by making the pins 14 of elongated section or by providing projections in the adjacent parts of the grooves 13 for engagement with a groove in the end of the pins 14. The toothed segments 1 may, as shown, slide between paired guides 7 or may overhang from guides dovetailed in a single plate, and to prevent lateral distortion alternate ends of the segments may carry guide-bars 6a embracing the ends of adjacent segments. As shown in Fig. 2, the camplate 11 is caused to rotate with the sprocket by pins 17 on the plate embracing the guide-arms 7 of the sprocket. To make a change, the cam-plate 11 is slid axially to the left of Fig. 2 against the resistance of a return spring 15 so that the pins 17 leave the guide-arms 7 and a tooth 19 on the plate engages a fixed tooth 20 to lock the plate against rotation, whilst the pedals are turned in the appropriate direction to vary the diameter of the sprocket. In Fig. 10, not shown, the camplate 11 is locked to the sprocket by a spring- loaded pawl pivoted on its periphery and, for a change, rocked out of engagement with a notch in the sprocket and into engagement with a fixed locking projection by depressing a stationary lever into the path of the tail of the pawl. The chain 3 is tensioned by a spring-loaded jockey 4. The Specification as open to inspection under Sect. 91 shows also a form without the return cam-track. This subject-matter does not appear in the Specification as accepted.
Patent GB-186120-A (GB)
Title: An improved liquid fuel burner
IPC: F23D11/10
Filed: 1921-06-15
Abstract: 186,120. Ritchie, A. June 15, 1921. Air and steam pressure sprayers; nozzles for producing whirling aprays.-A liquid fuel burner comprises a casing a having an air or steam inlet b and a fuel inlet c, a cylindrical internally-coned sleeve d formed with ports f, g communicating with air or steam and fuel chambers h, i in the casing a, and an externally-coned rotatable member j formed with a recess m opposite the ports f and having a central tubular passage k communicating through a port l with the fuel port g. The member i is secured to the sleeve d by a spring v and a collar q and is operated to regulate the fuel opening by means of a handle r carrying a pointer s moving over a scale u on the casing a. The port or ports f are tangential to the inner surface of the sleeve. A nozzle o is provided on the casing a, the end of the casing being castellated to form air induction openings p.
Patent GB-190184-A (GB)
Title: Improvements in and relating to electron discharge devices
IPC: H01J19/34
Filed: 1921-06-15
Abstract: 190,184. British Thomson - Houston Co., Ltd., (General Electric Co.). June 15, 1921. Vacuum tubes.-A highpower discharge device comprises an evacuated envelope composed in part of vitreous material 1, preferably glass, and in part of a metal cylinder 2, forming the anode and sealed to the vitreous part by means of a. thin metal ring 3, the vitreous part having a re-entrant portion 12 through which the leading-in wires for the cathode 5 are sealed, and on which a sleeve 24 for supporting the grid structure is clamped, the cathode and grid being arranged concentrically in the anode, which forms a prolongation of the vitreous part. The ring 3 may be of copper or an alloy having the same co-efficient of expansion as glass, and is soldered or welded to the anode 2, which may be of copper,. and is closed at one end by a cap 28 soldered or welded on. The anode may be cooled, for instance, by ,immersion in a liquid. The leads 9, 10 for the cathode consist of a number of wires in parallel, sealed into the portion 12, and secured to the cathode supports 6, 7 by binding- wire 13 and spot-welding. The grid 15 consists of two sets of wires wound spirally in opposite directions around arms 20 and interwoven to prevent buckling with heat. The ends of the grid' wires are secured to rings 18, Fig. 4, by wireswound around the rings, which are formed with ears 22 engaging with the arms 20. The upper ends of the arms 20 are soldered in holes in arms 26 secured to the sleeve 24. Specification 108,793 is referred to.
Patent GB-318668-A (GB)
Title: An improved surgical stocking
IPC: A61F13/08
Filed: 1928-06-08
Abstract: 318,668. Frei, E. June 8, 1928. Elastic stockings. - A knitted surgical stocking is provided with side openings 1 in the heel portion so arranged that the whole of the sole forms a continuous uninterrupted surface. The openings may be formed in a reinforcing member 2. The stocking may comprise elastic and non-elastic threads. It may be provided with gussets or insets of rubber fabric or with a slit which may be drawn together by a cord or by other fastenings.
Patent GB-584368-A (GB)
Title: A new or improved method of constructing torpedo hulls
IPC: B23K33/00
Filed: 1942-11-25
Abstract: 584,368. Making torpedoes. VICKERSAMSTRONGS, Ltd., and JONES, L. Nov. 25, 1942, No. 16744. [Classes 83 (ii) and 83 (iv)] Welding.-A torpedo hull is made from a number of metal stampings or pressings of circular cross-section each having an integral internal stiffening flange, the stampings being assembled in overlapping end-to-end relationship and secured together by welding. The stampings, which may be cylindrical or conical are each first formed with an outward peripheral flange 2 at one end and slightly reduced diameter 3 at the other or closed end 4. Each section then has its flange 2 machined off, the part 3 machined to correct diameter to mate with an adjacent section and the end 4 trepanned out to a diameter leaving an internal stiffening flange 6. The sections are then assembled on a jig 7 with their ends in overlapping relationship and are joined together by a number of widely spaced spot welds. On removal from the jig the joints are seam welded and the depressions 8 and seam between the sections provided with synthetic rubber or other plastic or hard filling substance.
Patent GB-694397-A (GB)
Title: Improvements in and relating to baling presses for hay or straw
IPC: A01F15/10
Filed: 1951-07-16
Abstract: 694,.397. Balins-presses. -ETABLISSEMENTS R. ROUSSEAU SOC. AR.L. Julv 16, 1951 [Aug. 11. 1950], No. 16815/51. Class 94(i). In a pick-up baling-press for hay or straw, the bottom wall 15 of the baling chamber is located at substantially the same height as the bottom wall 13 of the channel into which the hay &c. is dumped by the pick-up cylinder 2, 14, and the wall 13 is substantially tangential to the pick-up cylinder. The hay &c. is fed along the channel by pivoted fingers 6, which are moved in a closed path 7 by a crank 5, and is compressed by a piston 8 carried by a pivoted arm 9 which is actuated by a crank 12 and connecting rod 11.
Patent GB-351212-A (GB)
Title: Improvements in or relating to drying and carbonising machines
IPC: D06C7/04
Filed: 1930-06-02
Abstract: <PICT:0351212/IV/1> In a machine for drying and carbonizing acid-soaked textile materials comprising a series of chambers through which the material is led whilst a counter-current of heated air is passed through them, the air is passed straight through the chambers at a high speed and the number of chambers is such that the air current cools down in regular steps to the temperature appropriate for the material as it enters the machine.  The fabric 16 enters the machine and passes in vertical loops through a series of chambers 1 .. 11.  The air is heated external to the machine in a chamber 12 and is passed through by a series of fans 13 interposed between each two adjacent chambers.  The air is exhausted into the atmosphere from the wet stage 1 through a pipe 18.  To prevent condensation on the top wall, hot fresh air is supplied into a hollow space 21 above the top wall, and flows through a slot 28 into the chamber 2.  This additional air may be drawn from the chamber 12 by the fan 13 nearest thereto and forced up a pipe 27 into the space 21.  The additional air may be heated in separate chambers or a common chamber and be supplied by the fans 13 at the various stages on the machine.
Patent GB-841609-A (GB)
Title: Carding apparatus
IPC: D01G15/20
Filed: 1959-05-19
Abstract: 841,609. Carding engines. RUSCA, R. A. May 19, 1959 [Aug. 1, 1958], No. 16969/59. Addition to 836,668. Class 120(1). The machine of the parent Specification is modified in that pre-opener roll means are mounted in a fibre opening and transfer relationship with the main cylinder in advance of the granular carding surface. In one embodiment, Fig. 2, unopened fibre tufts on the cylinder 10 are caught by the teeth of a slowly-rotating roll 14 whence they are returned to the cylinder by a rapidly rotating roll 14<SP>1</SP>. Rolls 14, 141 are covered with saw teeth, preferably with a 30 degree rake on each tooth. The rolls are mounted just in advance of a granular carding plate 13. They may be individually belt driven; or they may be inter-geared, one being belt driven. Two or more pairs of rolls may be located consecutively prior to the plates 13, or each pair of rolls can be followed by one or more plates. Plates 13 are adjustably secured to the machine frame by mounting screws 19 and adjustment nuts 21, Fig. 3. In another embodiment, Fig. 6, a single roll 36, rotating in either direction at a lower surface speed than the cylinder 10, removes unopened tufts from the cylinder and returns them to the lickerin 11 which carries them over mote knives 35 before returning them to cylinder.
Patent GB-492836-A (GB)
Title: Improvements in and relating to carbonisation processes and apparatus therefor
IPC: C10B9/00
Filed: 1937-06-18
Abstract: 492,836. Coking-ovens. BRASSERT & CO., Ltd., H. A., and PUENING, F. June 18, 1937, No. 17042. [Classes 51 (i) and 51 (ii)] In a horizontal coking-oven for producing coke from liquid or liquefiable charges such as petroleum residue or pitch, air ducts 16 and 16<1> connecting regenerators 5 and 6 with combustion flues 10 enclosed between floors 8 and 9, protrude above the lower floor 9 to prevent any liquid leaking through the upper floor from entering the regenerators. Pipes 13 and 131 supply in turn air to each regenerator section and pipes 14, 14<1> combustion gas to each flue 10. Secondary air may be supplied through ducts 17, 171 controlled by damper bricks 18 adjustable from outside the oven on bricks 19 being removed. A fan 24 connected to a reversing valve 23 draws off combustion products in turn through each regenerator. The ovens, which occur in pairs, are supported by tie-rod connected buckstays 32. 33, 40 and 41 which yield resiliently to the expansion of the floors. Lateral flues 31 transmit heat to the sides and top of the charge. The coking chamber 7 is closed by lowering doors 36 and 37, members 38, 39 guiding them into position.
Patent GB-1186544-A (GB)
Title: Immunological Reagent and the Production Thereof
Inventor: GUFFROY RENE
IPC: G01N33/564
Filed: 1967-04-13
Abstract: 1,186,544. Reagent for determining rheumatoid factor. POLYPHARMA. 13 April, 1967 [19 April, 1966; 15 March, 1967], No. 17062/67. Heading B1X. An immunological reagent for determining rheumatoid factor is prepared by a method comprising formalinising avian or mammalian red blood corpuscles, mixing the formalinised corpuscles with a serum containing antibody for the corpuscles but in amount less than that required to agglutinate the corpuscles, and incubating the product with formaldehyde. The corpuscles are preferably human 0 cells and the serum rabbit anti-human serum. The initial formalinization may be at 25‹ to 37‹C for 12 to 22 hours. The mixture of formalinised cells and antibody-containing serum may be treated with formaldehyde at 20‹ to 37‹C for at least 5 hours. The product may be lyophilized, optionally after addition of serum free from antibody. An example relates to treatment of formalinised sheep cells with rabbit anti-sheep serum. There is a reference to using the reagent with fluorescein isothiocyanate.
Patent GB-1376377-A (GB)
Title: Injection moulding amchines
IPC: B29C45/62
Filed: 1972-04-13
Abstract: 1376377 Injection moulding MEIKI SEISAKUSHO KK 13 April 1972 [13 April 1971 (2)] 17126/72 Heading B5A An injection moulding machine comprises a heated barrel 1 having a portion of bore diameter D 2  upstream of a portion of larger bore diameter D 1  into which a vent 4 is connected, and a screw 2 rotating within the barrel and having a portion of larger diameter d 1  in the larger part of the bore. A pump 5 extracts volatile matter through the vent 4. The increase in bore diameter at step 1<SP>1</SP> reduces the pressure of the melt and prevents the melt being forced into the vent 4. This is assisted by the reduction of the port diameter d<SP>1</SP> 12  of the screw adjacent the vent. Both the bore and the screw may comprise three portions of correspondingly increasing diameter (Fig. 2, not shown). The screw has a single thread of constant pitch and is rotated by an hydraulic or electric motor 10 to convey the melt (ABS or nylon) along the barrel about which heater bands 3 are mounted. The belt passes through a non-return valve 2b and when sufficient melt has accumulated in front of the screw a switch (not shown) is triggered to cause hydraulic piston 9 to inject it into the cavity 16 of a mould 15 in clamping unit 12, 14.
Patent GB-276115-A (GB)
Title: An improved chimney-top or cowl
IPC: F23L17/08
Filed: 1926-07-08
Abstract: 276,115. Woolaway, F. July 8, 1926. Chimney tops.-A device for attachment to a chimney pot consists of an open - ended flared funnel a of shallow depth and a surmounting hollow open-ended funnel c, the large mouth of of which surrounds in substantial overlying relation the upper end of the flared funnel a. The mouth of the flared funnel a extends very appreciably beyond the confines of the upper funnel c. The funnel a is connected at its upper end to a central shaft or top b and the member c is positioned by means of an extension b<1> of the shaft, such extension, being perforated as at d. The extension b<1> may be constituted by brackets, struts, &c. If desired, perforations may be provided in that part of the shaft b which is within the flared member a.
Patent GB-1216032-A (GB)
Title: Improved speed and direction control for automobiles
IPC: B62D9/00
Filed: 1969-04-02
Abstract: 1,216,032. Differential drive control. ALBARET S.A. 2 April, 1969 [8 April, 1968], No. 17185/69. Heading B7H. Apparatus for the speed and directional control of a motor vehicle having two independent driving members, comprises two sliding speed control elements 14D, 14G mounted to slide in parallel opposed directions and having means 16D, 16G in sliding engagement with the opposed arms 17D, 17G of a rocking lever 19 which is subject to the vehicle speed control 24 and is pivotable about a slide member 21 which is slidable under the control of a steering wheel 27. As shown, the speed control elements 14D, 14G have rollers engaging slots in the lever 19 and control variable displacement hydraulic pumps 12D, 12G connected to fixed displacement motors 11D, 11G. In a development (Fig. 3, not shown) the member 21 has an extension (25) with a roller (34) in engagement with a slot in a steering arm (32) of at least one steerable wheel (30) to steer the wheel in synchronism with the differential speeds of the motors 11D, 11G.
Patent GB-1492717-A (GB)
Title: Process for preparing a methyl-isoxazolyl compound
IPC: C07D417/12
Filed: 1976-04-28
Abstract: 1492717 1,2-Benzothiazine-1,1-dioxide derivatives WARNER-LAMBERT CO 28 April 1976 [21 May 1975] 17245/76 Heading C2C The methyl-isoxazolyl compound of Formula I is prepared from the compound II by methylation, acidification and, if necessary heating in the presence of a base. When the methylation is carried out at higher temperatures (up to 80 C.) with excess base, the following acidification gives the compound I directly. At lower methylation temperatures (10 to 25 C.), the acidification yields the compound III which is heated with a base to give the compound I. Compound I has analgesic, antipyretic and anti-inflammatory properties.
Patent GB-224264-A (GB)
Title: Improvements in burners for burning oil fuel
IPC: F23D11/10
Filed: 1923-07-05
Abstract: 224,264. Sloper, P. July 5, 1923. Spray burners.-A spray burner comprises a block casting 1 formed with oil and steam or compressed air inlets 2, 8 controlled by needle valves 3, 9, a cylindrical member 15 coned at its front end 16 and abutting at its rear end against a perforated plate 26 at the front of the casting 1, and a tubular piece 14 carrying the burner nozzle 24 secured to the casting 1 over the member 15 by means of a threaded ring 13. The oil passes to the burner nozzle, from the valve 3 through a passage 4 which branches into two passages 5 of equal length terminating vertically one above the other at a flat portion 6 of the casting. The steam or compressed air passes to the burner nozzle from the valve 9 through a passage 10 which branches into two passages 11 of equal length terminating horizontally opposite one another and equidistant from the oil holes in the flat portion 6. The passages 5, 11 make connection respectively with passages 18, 19 in the member 15, which passages emerge at the conical end 16 and communicate by grooves 20, 21 with a space formed between the flat point 17 of the member 15 and the burner nozzle 24. The tubular piece 14 and the member 15 may be formed with positioning pins 22, 23 engaging recesses in the casting 1. A strainer 27 is provided in the oil inlet 2. The distance of the point of combustion from the nozzle 24 may be varied by varying the length of the discharge aperture 25 in the nozzle 24.
Patent GB-497673-A (GB)
Title: Improvements relating to illuminating devices
IPC: B64D47/04
Filed: 1937-06-23
Abstract: 497,673. Retractable aircraft &c. lamps. HARLEY, M. C. June 23, 1937, No. 17501. [Class 75 (iii)] A lamp d, adapted to be swung into and out of a fixed housing c<1> in an aerofoil &c., is carried by a pivoted arm d<1> driven by a rotatable disc g<1> having a crank-pin g engaging a slot d<3> in the arm. As shown, the disc g is adapted to be rotated through 270‹ to move the lamp from one extreme position to the other, in both of which positions the lamp is locked by the pin g engaging the inner end d<4> of the slot. A quadrantal part d<2> of the arm passes through, and substantially closes, a slot c<3> in the housing. The disc g may be operated manually from the cockpit &c. by means of a pulley h and a cable j or through pinion gearing, or it may be driven by an electric motor k, Fig. 4, through reducing gear k<1>, a pinion k2 and a hard fibre spur wheel h<1>, resiliently gripped by spring means l between the disc g<1> and a disc g<2> to form a friction clutch. The lamp-circuit may be closed automatically when the lamp has been moved 30 to 40‹ out of the housing by means of a switch controlled by the operating cable &c. or a mercury switch, which may be attached to the lamp. The rotatable handle for a Bowden or other transmission may be provided with a screwed spindle for advancing and retracting a nut &c. to make and break the circuit. Alternatively, the periphery of the disc g<1> may be recessed at q to allow a spring- pressed contact 0<1> to engage a ring contact o<2>, Fig. 3, a fibre member r<1> engaging the periphery of the disc having a stem r<3>, which is fixed in the contact o<1> and slides in the contact o<2>. Specification 484,685 is referred to in the Provisional Specification.
Patent GB-136496-A (GB)
Title: Improvements in the Manufacture of Metallic Drums, Barrels and like Receptacles.
Inventor: CAMPBELL STEWART
IPC: B65D45/02
Filed: 1919-09-09
Abstract: 136,496. Campbell, S., (trading as Clark & Son, W.). Sept. 9, 1919. Metal drums; heads.-A metal drum, barrel, &c. has flanged ends 2 secured to the body 1 by a double-seamed joint 3, 4, the joint being embraced by a reinforcing- ring 5, the outer limb 6 of which is turned inwards, as shown. The ring 5 may be shaped to fit the parts of the seam by means of a spinning operation, and it may be formed from angle-iron, the meeting ends being welded together.
Patent GB-1031006-A (GB)
Title: A process for the production of vinyl chloride
IPC: C07C17/25
Filed: 1965-04-26
Abstract: Vinyl chloride is prepared by thermally decomposing a dichloroethane at a temperature of from 400 DEG  to 900 DEG  F. and a pressure of less than 100 p.s.i.g. to produce a mixture comprising vinyl chloride, hydrogen chloride and unreacted dichloroethane, passing this mixture into a distillation column wherein at least a portion of the unreacted dichloroethane is removed, withdrawing a vinyl chloride enriched stream from the distillation column and subjecting the enriched stream to further fractional distillation at a pressure of at least 100 p.s.i.g.
Patent GB-1139616-A (GB)
Title: Process for producing bleached and purified cellulose acetate
Inventor: KATO ICHIRO
IPC: C08B3/06
Filed: 1967-04-17
Abstract: 1,139,616. Bleached and purified cellulose acetate. TEIJIN Ltd. 17 April, 1967, No. 17548/67. Heading C3A. Cellulose acetate in solution is treated with 0À005-5% of an oxidant, and subsequently while still in solution, or after having been precipitated, with 0À001-10% of a reducing agent, based on the weight of the cellulose acetate. Preferably, both treatments are effected in solution following neutralization of any strong acid used in the cellulose acetate preparation. Specified oxidants include alkali metal permanganates and chromates, hydrogen peroxide, organic peroxides, e.g. peracetic acid or dicumyl peroxide, and chlorites. Specified reducing agents include oxalic, formic, phosphorous and sulphurous acids and their alkali metal salts. The treatment improves purity, colour and heat resistance. In examples, cellulose di- or triacetate in conc. acetic acid solution which may contain methylene chloride and sodium acetate and sulphate, is treated, and the product is separated by precipitation with water or dilute acetic acid.