baber/WOPTO huggingface dataset:
Patent GB-364686-A (GB)
Title: Improvements in and relating to devices for measuring the load carried by pit props
IPC: G01N3/06
Filed: 1931-04-29
Abstract: 364,686. Dynamometers. DIXON, S. M., 36, Emperor's Gate, London. April 29, 1931, No. 23176/30. [Class 106 (ii).] A dynamometric pit prop comprises a steel tube D and a steel block C which forms a sliding fit in the steel cylinder A closed by the steel block B and transfers the load through a steel strut E, and ball joint N to the upper cover F of a liquid, e.g. oil, container G. The base of the latter is formed by a disc H and its side wall consists of a flexible metallic diaphragm I offering very little resistance to relative axial movement of the cover F and bottom H, so that the load to be measured is supported almost entirely by the liquid in the container G. The fluid container is provided with a filling plug K and is in communication with a pressure gauge L which may be calibrated to give a direct indication or record of load read through the opening M in the cylinder A. Specification 17129/10, [Class 106 (ii), Dynamometers &c.], is referred to.
Patent GB-1034060-A (GB)
Title: Improvements in or relating to structures e.g. step ladders provided with wheels or other anti-friction devices
Inventor: GREY-WILSON DAVID VYVYAN
IPC: E06C1/397
Filed: 1964-06-04
Abstract: 1,034,060. On and off castors. MARTIN THOMAS Ltd. May 18, 1965 [June 4, 1964], No. 23199/64. Heading A4U. [Also in Division A6] A steps or like structure, e.g. builders' staging, step ladders, trestles or platforms, is mounted on wheels 34, 39, castors or anti-friction balls and includes one such wheel 39 which is mounted for movement from its ground engaging position to a position clear of the ground when the steps or the like are loaded by a user's weight, the arrangement being such that when the wheel 39 is raised the non-slip feet 36, 37 engage the ground and remain in this position after removal of the user's weight. A tread member 41, 43, 44, 45 carries the raisable wheel 39 and is pivoted on a frame cross bar 42, one extended arm 44 of the tread being movable between fixed stops 59, 60 limiting the pivoting of the tread. The tread lever 44 forms a toggle with a telescopic link surrounded by a compression spring 55, the intermediate pivot axis 47 passing through a dead-centre position when the wheel 39 is raised or lowered so that the extended lever 44 is engaged with a snap action against one or other of the stops 59, 60. The wheel 39 may be re-set in its ground engaging position by foot pressure on the tread plate 41.
Patent GB-222875-A (GB)
Title: Improvements in machines for up-setting or shaping the ends of wire blanks or metal rods
IPC: B21K1/46
Filed: 1924-10-02
Abstract: 222,875. Kr³ger, H., and Malmedie & Co. Maschinenfabrik-Akt.-Ges. Oct. 2, 1924. Bolts and rivets.-Headed articles are made from wire or rod by a machine which cuts lengths, heads them, preferably in two operations, and then trims the heads. The rod 5 is fed through a guide 58 and between a central block 10 and one of four movable blocks 11 which form gripping jaws mounted in a rotatable carrier 3. The length of rod' inserted is determined by a stop-bolt 23 and a stationarv cam 24, which can be adjusted by a screwed shaft 27 with squared end 28. The other jaws hold blanks 7, 8, and 9, Fig. 3, which have been partially headed, completely headed, and finished by trimming respectively. During each revolution of the crank shaft 19 a blank is cut off from the rod at 6, a finished article ejected at 9, the carrier 3 is given quarter of a revolution and the three blanks 6, 7 and 8 are operated on bv tools 33 carried' by a crank-operated slide 35. Commencing from the position shown, in which the slide 35 has almost reached the ends of its back stroke, the carrier 3 commences its 90‹ rotation by reason of a pawl 49, Fig. 2, in a ring 48, which is oscillated by linkwork 47, 46, 45, Fig. 1, and a cam 44 and at the same time a cutter 57<1> is advanced, at the same speed as the carrier 3, by linkwork 64, 61, Figs. 2 and 8, and a cam 59 on the flywheel 41. The bolt 23 supporting the blank 9 then arrives opposite a spring bolt in the cam 24 and the bolt is released, to eject the blank 9, by a trigger 52, Fig. 1, and a cam 51. As the carrier approaches the end of its 90‹ rotation the bolts 23 advance the blanks 6, 7 and 8 slightly by reason of the cam 24, the fourth bolt being at the same time allowed to retire before the advancing rod 5. As the carrier 3 comes to rest the blanks 6, 7 and 8 are gripped by their jaws 11 by reason of toggles 12, 13 and the fixed cam ring 43. A cam 69, Fig. 13, on the crank shaft then operates through a lever 70, bevels 72, Fig. 2, and lever 74 to lift a trimming block 68, Fig 12, to engage below the bolt head 8 and the slide 35 upsets the blanks 6, 7 and trims the head 8. During the return of the slide the trimming block is returned by the cam 69 engaging the other arm of the lever 70. The other parts are returned by their operating cams or by the springs shown. The jaws 11 are adjusted by wedges 17, Fig. 1, or in a modification by screws 80, Fig. 15, the toggle levers in this case being dispensed with. The slide 35 can be turned back about the joint 32', after a cover 38 has been removed, for inspection or removal of the tools 33. In a modification the cam 24 is supported by the crank casing and adjusted by inserting the spacers. The cams 44, 51 and 69 are in this case arranged on a countershaft.
Patent GB-1209704-A (GB)
Title: Improvements in or relating to packs for fragile articles
Inventor: LANE WILLIAM CHARLES
IPC: B65D71/00
Filed: 1968-05-16
Abstract: 1,209,704. Packaging. REED PAPER GROUP Ltd. 28 April, 1969 [16 May, 1968], No. 23432/68. Heading B8C. A pack for fragile articles e.g. electric-bulbs, valves, eggs, fruit, comprises an elongate channel member of cardboard &c. provided with articlesupporting portions 14 and formed into compartments by spaced apart bent-in flaps 13, a separate or integral closure member 7 being glued or stapled to the channel. Weakened lines 16 facilitate removal of one or more compartments 12; and to remove an article, its support 14 can be torn along weakened lines (22), Fig. 3, not shown. The portions 14 may be arcuate or flat and the flaps 13 arcuate or angled. The pack may comprise two or more parallel channels interconnected at the upper edges of the adjacent side walls, (Fig. 6, not shown).
Patent GB-1313173-A (GB)
Title: Stretch covers
IPC: D03D15/56
Filed: 1970-05-14
Abstract: 1313173 Loose covers PHRIX-WERKE A G 14 May 1970 [16 May 1969 28 June 1969] 23512/70 Heading A4M [Also in Division D1] Stretch covers for furniture, mattresses or  pillows are made of a fabric which comprises a crinkled yarn in the warp and/ or weft whereby the fabric is stretchable in one or both directions. The crinkled yarn, produced by knitting a tubular fabric, fixing and then unravelling it, is preferably of synthetic fibres such as polyamides or polyesters. Inelastic yarns may also be used in the warp and weft. In an example, a plain woven fabric was used consisting of polyacrilonitrile yarn and a polyamide - 6 crinkled yarn in both warp and weft, the fabric being elastically stretchable to 1À5 times its original length in both directions.
Patent GB-969970-A (GB)
Title: Improvements in pallets and stillages
IPC: B65D19/38
Filed: 1961-07-29
Abstract: 969,970. Post pallets. J. ROBERTSON, and M. F. STEPHENS. June 28, 1962 [June 29, 1961], No. 23517/61. Heading B8H. Each post of a post pallet consists of a short post 11 upstanding from a foot 10 and a main post P interconnected by pin-and-slot means enabling folding down of the main post. The arrangement is such that, when the posts are erected, each main post directly abuts its corresponding short post with the pin-and-slot means located inside the post. In Fig. 1, the short post 11 has an upstanding pair of parallel cheeks 12a bridged by the pin 13 and the co-operating slot is in a link element 14 fitted to the lower end of the main post P. When the main post is erected, its hollow lower end fits over the cheeks 12a so that the erection is stable, lifting of the main post being necessary before it can be folded down. In Fig. 5, the cheeks 12a are replaced by a solid block 15a with a main slot 16 to receive a tongue 18 at the lower end of the main post P, the pin 19 in this embodiment being carried by the said tongue and fitting in a slot or slots 17 cut into a wall or walls of the main slot 16.
Patent GB-741822-A (GB)
Title: Improvements in or relating to the arc welding of copper
Inventor: TERRY CYRIL ALBERT
IPC: B23K35/30
Filed: 1952-09-19
Abstract: A filler rod for use in shielded are welding comprises a copper base alloy containing 0.05-0.3 per cent titanium or 0.1-03. per cent aluminium or 0.02-0.1 per cent magnesium or mixtures of two or more of these elements up to a total of 0.6 per cent, balance copper containing up to 0.2 per cent impurities.  The following examples are given:-  (a) Copper-0.2 per cent titanium,  (b) Copper-0.24 per cent aluminium-0.25 per cent titanium,  (c) Copper-1 per cent silver according to the Provisional Specification,  (d) Copper-0.1 per cent titanium, and  (e) Copper-0.2 per cent titanium-0.1 per cent aluminium.
Patent GB-1350623-A (GB)
Title: Apparatus for harmonic neutralization of inverters
IPC: H02M7/48
Filed: 1971-04-19
Abstract: 1350623 Inverting WESTINGHOUSE ELECTRIC CORP 19 April 1971 [11 March 1970] 23591/71 Heading H2F A D.C.-A.C. converter comprises a plurality of phase-displaced square wave voltage generators having respective single-pole outputs A ... R, the outputs of at least two generators being combined by a tapped transformer T1 whilst the output of further generators are combined with said combined output by means of further tapped transformers T2 ... T5. A synthesized stepped-sinewaveofthe form EXN AC  is thus available at the tapping of the final transformer T7, said waveform having reduced harmonic content. Fig. 1 (not shown) relates to an arrangement of three such voltage generators each comprising a series connected pair of thyristors having reverse diodes. Figs. 5 and 6-8 (not shown) relate to vector diagrams for the complete arrangement. Fig. 9B (not shown) depicts a three-phase arrangement.
Patent GB-1235785-A (GB)
Title: Manufacture of bipyridyls
Inventor: BOWDEN ROY DENNIS
IPC: C07D213/22
Filed: 1969-05-09
Abstract: 1,235,785. Bipyridyls. IMPERIAL CHEMICAL INDUSTRIES Ltd. 13 April, 1970 [9 May. 1969], No. 23780/69. Heading C2C. Bipyridyls are produced by heating in the vapour phase in the absence of oxygen and ammonia at a temperature of at least 200 C. in the presence of a dehydrogenation catalyst a bipiperidyl or a pyridine derivative having as substituent a piperidyl group or a group of the formula -C(R)(R 1 )(R 2 ), where R is hydrogen, halogen, hydroxy, alkoxy or amino, R 1  is a group of the formula R 2  is as defined for R 1  or a group of the formula where X is oxygen or sulphur, n is 0-2, m is 1 or 2 and R 3 , R 4 , R 5 , R 6 , R 7  and R 8  are hydrogen, alkyl, alkenyl, aryl, aralkyl, alkaryl or a cycloaliphatic group.
Patent GB-795094-A (GB)
Title: Improvements in and relating to a hot air furnace
IPC: F24H3/06
Filed: 1956-08-01
Abstract: 795,094. Hot-air stoves. ROSS, R. W. Aug. 1, 1956, No. 23783/56. Class 64(1) In a hot air stove, a main air heating chamber 51 covers a fire box 36 and is in turn covered by a secondary combustion chamber 62, the chamber 51 being supplied at one end with air and leading at its other end to a plenum chamber 68 fitted with hot air ducts 70 Air enters the stove, for example from a recirculating duct and a duct connected to a source of fresh air, through passages 12, 13 and flows through openings, such as 23, to the space around the fire box 36 before entering the chamber 51 through a pair of L- shaped openings 54, 55. The products of combustion pass through a channel 57 to the chamber 62 and leave the stove through pipe 76, extending through a projection 66 of the chamber 51, and pipes 78, 79, 80. Coal, wood, oil, or gas may be used and the air flow may be controlled.
Patent GB-267023-A (GB)
Title: Improvements in siphons with priming means
IPC: B67D7/00
Filed: 1926-09-28
Abstract: 267,023. Goodier, F. Sept. 28, 1926. Siphons are provided with a cylinder a having apertures h near the lower end, a piston f and a vent pipe j connecting the upper end with the discharge l. A collar g cut obliquely at its lower end, a spring or other clip n, and a piercer o are provided.
Patent GB-981446-A (GB)
Title: Improvements in connecting rods
Inventor: CROSS ROLAND CLAUDE
IPC: F16C7/02
Filed: 1963-06-17
Abstract: 981,446. Connecting-rods. CROSS MANUFACTURING CO. (1938) Ltd. Jan. 16, 1964 [June 17, 1963], No. 23999/63. Heading F2T. A connecting-rod comprises a light metal body 1 to take compression loads and a band 4 of heavier metal, e.g. steel, to take tension loads which extends from end to end of the rod and is secured to the body under tension so as to hold the body in a longitudinally precompressed state. As shown in Fig. 1, the band extends around the flanges 5 of the H-section body 1 and the big and small ends 2 and 3 and is tensioned by having its ends 6 drawn into abutment by the nut 11 of a bolt 7 passing through washers 9 and elongated holes 8 in the ends 6. There may be a further tensioning device comprising a bolt 12 which passes through the band and body 1 adjacent the big end 2 and cooperates with washers 13 having bevelled band contacting faces 14. In a modification, Fig. 3 (not shown), the ends of the band 4 are connected to the body 1 at the small end 3. In a further modification, Fig. 9, the band 4 is formed by two parts connected to the body 1 at their overlapping ends 4b and placed in tension by bolts 12 and washers 13.
Patent GB-725906-A (GB)
Title: Improved roasting furnace
IPC: F27B1/08
Filed: 1953-08-31
Abstract: 725,906. Shaft furnaces. DUISBURGER KUPFERHUTTE. Aug. 31, 1953 [Sept. 17 1952], No. 24063/53. Class 51 (2). A shaft furnace for wasting pyrites and other expanding and caking sulphide ores with the aid of oxygen-containing gases, comprises a shaft in which the cross-sectional area for the top threequarters of its length increases by 25 per cent- 50 per cent downwardly and for the bottom quarter of its length increases by 3 per cent-7 per cent, the reaction gases being introduced at the bottom of the shaft through a grate supporting the charge. The shaft may be cylindrical, rectangular or polygonal in shape, and the enlargement may be effected in steps, Figs. 1-3 (not shown). Discharging apparatus may comprise bars or rotary arms sweeping over the grate and pushing wasted ore either outwardly through an annular space formed between the grate and the shaft casing, or through a radial slot in the grate. Figs. 4, 6 (not shown). In the case of a rectangular furnace, the charge material may be discharged through parallel slots 21 formed in the grate 22 by means of bars 20 oscillated over the said grate by a crank 23. The interstices between the grate bars are 1 mm. when treating pyrites of 6-20 mms. grain size.
Patent GB-534620-A (GB)
Title: Improvements in or relating to detonating devices for projectiles
IPC: F42C9/10
Filed: 1939-08-21
Abstract: 534,620. Bomb and projectile fuzes. IMBER, J. Aug. 21, 1939, No. 24070. [Class 9 (i)] A fuze includes a striker pin 11, 12 normally held immovable by forcing it under mechanical pressure into a surrounding passage or sleeve from which it can only be projected by the superior pressure developed by the propellant charge of the gun or by a separate charge in the bomb or projectile. Figs. 1 and 5 show the invention applied to an aerial bomb 1. The striker pin 11, 12 is forced mechanically into a plug 7 having an internal passage 8, annular shoulder 9, and passage 10 of larger diameter. The bomb is of the kind described in Specifications 530,442 and 534,613, and includes a charge 6 adapted to be exploded on impact by the action of a rod 5 so as to cause the bomb to rebound. The explosion of the charge 6 also drives the striker pin 11, 12 into contact with a detonator 15 thus firing a delay-fuze 16 and the detonator 17 of the main charge. As applied to a shell, Fig. 2, the pin 11, 12 is driven in by the explosion of the propellant charge in the cartridge case 20 and serves to push inwardly a sleeve 22 so that the sleeve no longer prevents the movement of an impact rod 25 into contact with the detonator striker-pin 30. As applied to a trench mortar bomb, the explosion of the propellant charge pushes in the frictionally held pin so as to ignite a delay-action fuze.
Patent GB-934171-A (GB)
Title: Clamping clip
IPC: F16L33/04
Filed: 1962-06-22
Abstract: 934,171. Band clips. H. KREIDEL, and H. KRIEDEL Jim. June 22, 1962 [Aug. 3, 1961], No. 24115/62. Class 44. A clamping clip comprises a clamping strap 1 having at its ends angle brackets with holes for a tension screw 6 the brackets comprising stiffening tongues 5 adjacent one another such that they are adapted to slide alongside one another on tightening the tension screw and be supported by the respective opposite brackets for sliding movement in a direction substantially parallel to the axis of the tension screw. As shown the tongues 5 are extensions from the upper ends of portions 4 of the brackets and they bear on the top of the portions 4 of opposite brackets. The screw engages a nut 7 and the tongues 5 minimise bending of the portions 4 of the brackets when the screw is tightened. In a modification the tongues 5 enter openings in the opposed portions 4. The screw can be received in a threaded opening in one of the portions 4. The brackets can be fluted if desired. Instead of being set flat as shown the tongues can be arranged edgewise; they can also be connected to a strip portion instead of being integral. The clip could be made of a length of wire bent to the shape shown.
Patent GB-240493-A (GB)
Title: Improved holder and clip for fountain pens and the like
IPC: B43K25/02
Filed: 1925-09-28
Abstract: 240,493. Webb, P. T. Sept. 27, 1924, [Convention date]. Pockets, retaining pens &c. in.-The clip comprises an inverted U-shaped member 1 provided with integral wings 2 adapted to grip the pen &c. The member 1 is adapted to fit over the edge of the pocket and is fixed thereto by pressing up a bent lever 6 pivoted to the sides of an opening 8 in the membar 1 to press an apertured spring clip member 3, fixed inside the member 1 by means of tongues 3a, against the pocket. The wings 2 have projecting spring portions 2<a> to grip the pen &c. In a somewhat similar alternative form, the spring clip memher 3 is formed integral with the wing members 2, the U-shaped member 1 being fitted over and attached to the clip 3. Instead of the wings 2 being as shown, they may be provided with depending tongues 11, as in Fig. 4, to grip the pen &c. Spikes 9 may be provided on the clip 3 to increase the grip on the, cloth.
Patent GB-507459-A (GB)
Title: Improvements in rotary valves for internal combustion engines
IPC: F01L7/02
Filed: 1938-08-17
Abstract: 507,459. Steam - engine valves. BREWER, C. E. Aug. 17, 1938, No. 24223. [Class 122 (ii)] [Also in Groups XXVII and XXVIII] A rotary valve for con. trolling inlet and exhaust of steam engines comprises a rotary member c formed with a radial slot h extend. ing throughout its width and adapted to connect, in turn, opposed inlet ports f and exhaust ports f<1> in the end walls of the valve casing to a peripheral casing port leading to the cylinder a by a passage j. The pair of opposed inlet ports fare connected by a bifurcated passage to the inlet d, and the pair of exhaust ports f<1> are similarly connected to the exhaust e, so that the axial pressures on the valve are balanced. In a modification, either the inlet or the exhaust may be led to or from the valve through a peripheral passage in the valve casing, instead of through a pair of opposed end ports.
Patent GB-615849-A (GB)
Title: Improvements in methods of retreading tyres and the tyres obtained thereby
IPC: B29D30/54
Filed: 1946-08-15
Abstract: 615,849. Wheel tyres. DUNLOP RUBBER CO., Ltd., and ADAMS, A. L. Aug. 15, 1946, No. 24246. [Classes 144 (i) and 144 (ii)] A method of re-treading tyres comprises removing the damaged portion over a width less than that of the tread and filling the groove thus formed with vulcanizable material 4. An outer layer 4a of such material, of the full tread width, may be vulcanized to, or formed with, the portion 4. Preferably, the groove is cut with outwardly-divergent sidewalls 3.
Patent GB-1420143-A (GB)
Title: Capacitor means for fluid measurement
IPC: H01G4/04
Filed: 1973-03-23
Abstract: 1420143 Fuel tank capacitor gauge GULL AIRBORNE INSTRUMENTS Inc 23 March 1973 [24 March 1972] 24317/74 Divided out of 1420142 Heading G1 The invention relates to the construction of a multiplate capacitor with a TRIMMER for monitoring fluids such as liquid level or density in a fuel tank.  As described the capicator is used for density measurement in an aircraft fuel gauging system and is mounted on an arm so as to be wholly immersed in the fuel Figs. 4, 5 and 18 .. 25 (not shown). The capacitor comprises a plurality of concentric tubes alternately connected in parallel and has an axially slidable inner TRIMMER tube for initial calibration. This trimmer tube (188) is mounted on a ring (141) which can be locked in position by a screw (142) through a slot in the support tube (best illustrated in Figs. 22, 24) and sealed by an encircling band. An alternative construction with a rotary slotted trimmer forms the subject of the Parent Specification 1420142.
Patent GB-988289-A (GB)
Title: Improved process for making foamable thermoplastic polymers
IPC: C08J9/18
Filed: 1962-06-26
Abstract: A process for the production of foamable, spherical or substantially spherical polymer particles, such as beads, by the incorporation of a blowing agent into a particulate thermoplastic polymer by impregnation at a temperature above the softening point of the polymer but below its decomposition temperature and at elevated pressure while agitating in the presence of water and of a dispersing agent is characterized in that the dispersing agent is an organic high molecular weight polymeric water-soluble or water-dispersible sulphonated polymer or a mixed substituted derivative of cellulose. The sulphonated polymers have a molecular weight of one million or more.  The mixed substituted derivatives of cellulose have a 2% aqueous solution viscosity of above 300 centipoises and are thermally stable or decompose only slowly at the treating temperatures used in the process. Carboxymethyl methyl celluloses and sulphonated vinyl aromatic polymers are suitable dispersing agents.  Water-miscible organic compounds can be added to the impregnating medium.  The polymers and blowing agents may be the same as those used in the process of Specification 988,290.  The polymer particles may have the shape described in that Specification or may be spheres, beads or ground, crushed or broken particles.  Bromine-containing organic compounds may be added during or after the impregnation step.  The resulting flame-proofing effect is increased by also adding an organic peroxide to the impregnating mixture.  In examples (1) pentane is fed into a pressure vessel containing a stirred mixture, at 135 DEG  C., of polystyrene particles suspended in water containing carboxymethyl methyl cellulose, ammonium salt of sulphonated polyvinyltoluene, ammonium sulphate, sodium lauryl sulphate and petroleum ether.  The product is foamed in an open chamber with steam at 99 DEG  to 102 DEG  C.; (2) a butadiene-styrene copolymer is similarly impregnated, carboxymethyl methyl cellulose being the dispersing agent; (3) extruded rods of polystyrene are similarly impregnated with normal pentane, 1,2-dibromo-1,1,2,2-tetrachloroethane and dicumyl peroxide, the product having the form of beads (which, when foamed, are self-extinguishing if ignited); (4) saturated hydrocarbons (b. pt. 30 DEG  to 60 DEG  C.) are used in a similar process to that of Example 1.