baber/WOPTO huggingface dataset:
Patent GB-1361316-A (GB)
Title: Arrangements for explosively formed connections
IPC: B21D39/04
Filed: 1972-05-10
Abstract: 1361316 Reinforcing bars for concrete DYNA-TECH Inc 10 May 1972 21991/72 Heading E1K [Also in Divisions B3 and F3] A reinforcing bar for concrete is joined to a sleeve by an explosive which contracts the sleeve on to the bar, a layer of flexible material surrounding the explosive to confine its effects and being fractured thereby so that it may be removed from the joint. As shown, Fig. 2, a sleeve is joined to the adjacent ends of a pair of rods 10, 11 in a casing 16 which has a removable panel 18, Fig. 4, permitting lateral removal of the joined rods. Divided and hinged ends 31, 32 have bayonet connections 33, 34, 35 with the casing 16, and a pair of locking pliers 71 aligned with a mark 67 on the lower bar 10 may be used to locate the bar in the casing. The sleeve 14 is provided as part of an explosive package including a layer of explosive material 61 on the outside of the sleeve surrounded by the frangible damping material 53 and optionally including an intermediate flexible jacket 56, for example of mild steel or cast iron. The damping material 53 may be wood, chipboard, sawdust held with a suitable binder or in a bag, paper with a binder, cardboard or porous concrete. The explosive material may be in the form of a sheet, castable material, liquid or a gell, and a metal powder may be mixed with the explosive, e.g. 40% by weight of explosive and 60% of sponge iron or stainless steel powder of 80 mesh.
Patent GB-642289-A (GB)
Title: Improvements in or relating to double layer cavity walls or wall slabs
IPC: E04B1/41
Filed: 1948-08-19
Abstract: 642,289. Cavity wall and wall slabs. SIMPLIFIED BRICK CONSTRUCTIONS, Ltd., and DENNISS, A. J. Aug. 19, 1948, No. 21944. [Classes 20(iv) and 87(i)] A double layer cavity wall or wall slab comprises one layer 23 of bricks and the other 24 of reinforced concrete tied together by tie bars 21, some or all of the bricks having a grooved or recessed face 29, and each tie bar having one end 31 disposed in the brick layer with the end 32 turned bent or otherwise displaced relatively to the main portion and projected into the groove or recess 30 of the brick layer, and the other end 25 orificed 26 and disposed in the concrete layer with a reinforcing rod 27 of the layer engaging the orifice. The tie bars project across the cavity 22 between the layers, and the end 32 may be bifurcated and the two portions thus formed may be turned outwardly relatively to each other or splayed apart. The bricks may have a single recess 30 terminating just short of each end of the brick, a plurality of recesses closed on all sides, or a groove extending the length of one side, and such bricks may be used together with ordinary rectangular bricks.
Patent GB-222130-A (GB)
IPC: A43B9/04
Filed: 1924-09-17
Abstract: 222,130. Martin, G. W. [Firm of], and Haller, M. Sept. 17, 1923, [Convention date]. Connecting uppers to insoles and soles. - A method of connecting an upper b and welt d is characterized in that the edge portion b<1> of the upper and the welt d are sewn together without the stitches passing through the insole. The projecting edge of the upper is not cut off but is cemented down on to the insole.
Patent GB-1350236-A (GB)
Title: Rolling bearings in particular clutch thrust bearings
IPC: F16C19/10
Filed: 1971-04-19
Abstract: 1350236 Bearings; clutch control SKF KUGELLAGERFABRIKEN GmbH 19 April 1971 [19 Feb 1970] 22006/71 Headings F2A and F2L A clutch release rolling bearing comprises sheet metal races 1, 2, 18, 20, a sheet metal sleeve 12, 22 surrounding the inner race, a labyrinth seal formed between adjacent edges 6, 7, 17, 19 of the races, a supporting ring 5, 26 of resilient material such as plastics for the inner race, and means with which an annular flange 9, 25 engages with small clearance to act as a further seal and to limit axial separation of the races. The means may be a groove 11 in the supporting ring or a separate ring 16 of resilient material such as plastics. The races are hardened by nitriding. In an alternative embodiment, the inner race and sleeve do not extend to the axial edges of the supporting ring as is the case in the embodiment of Figure 2.
Patent GB-355468-A (GB)
Title: Improvements in anamorphotic optical systems
IPC: G02B13/10
Filed: 1930-07-22
Abstract: 355,468. Optical systems. DOUGLASS, L. F., Valparaiso Avenue, Menlo Park, California, U.S.A. July 22, 1930, No. 22068. [Class 97 (i).] Anamorphotic systems.-A system to be used with a camera for producing distorted pictures consists of a pair of oppositely-directed prisms arranged at an angle to each other, each prism being compound and being partially corrected for achromatism. In the form shown in the Figure, each of the prisms 1, 2, having an apex angle of 20‹ consists of a crown glass portion having an apex angle of 35‹ and a flint glass portion having an apex angle of 15‹. The exit face 17 of the prism 2 is inclined at about 60‹ to the entrance face 16 of the prism 1. The camera lens is shown at 14. There may be arranged in front of the prism system a pair of lenses of approximately equal but opposite powers and separated by an air space, these lenses being stated to reduce the dispersion of the rays passing through the prism system. A similar prism system may be used in an apparatus for projecting from the distorted pictures obtained in the camera so as to obtain undistorted projected images.
Patent GB-143773-A (GB)
Title: Improvements in or relating to choppers
IPC: B26B23/00
Filed: 1919-09-08
Abstract: 143,773. Mildyard, G. R. Sept.. 8,1919. Axes.-A wood chopper is formed with a thickened back to the blade a, and with a flange b for a whole or part of its length to prevent the chopper from passing through the wood on to the block, thereby minimizing accidents to the operator. The flange b, as shown, extends like the head of a T on either side of the blade, and is bent down at d near the handle c to leave a portion a' of the blade without a flange, this portion serving to finish the chopping of portions which are slit only by the blade a. The flange may be separate from the blade and secured to it in an adjustable manner.
Patent GB-251505-A (GB)
Title: Improvements in and relating to collapsible chairs for infants
IPC: A47D1/02
Filed: 1925-09-04
Abstract: 251,505. Hoy, H. W. S. Sept. 4, 1925. Body harness.-A safety belt for a child in a folding chair may be stamped from a leather strap 18 and be attached to projections on the chair.
Patent GB-320443-A (GB)
Title: Improvements in wireless receiving apparatus
IPC: H04B1/16
Filed: 1928-07-31
Abstract: 320,443. Montague, D., and Montague, S. July 31, 1928. Thermionic amplifiers and detectors.-In a wireless receiver employing capacity-controlled magnetic reaction, a supplementary condenser E is adapted to be connected under the control of a switch S directly between the anode and grid of the valve to obtain a satisfactory reaction control when the wave-band of the set is altered. In a modification (Fig. 3, not shown) a number of supplementary condensers are provided with a selecting switch.
Patent GB-1292278-A (GB)
Title: Improvements in or relating to gas generators
Inventor: ABBOTT ADRIAN
IPC: F02K9/50
Filed: 1968-12-05
Abstract: 1292278 Combustion chambers operating under pressure SPERRY RAND Ltd 26 Nov 1969 [5 Dec 1968 1 May 1969] 57731/68 Heading F1L A gas generator comprises a combustion chamber in which, eams are provided for supplying in use gas to the combustion chamber at a temperature sufficient to effect continued and complete combustion of fuel. In Fig.1 the gas generator comprises a combustion chamber 1 having an outlet nozzle 2, 3 and a fuel inlet nozzle 4. Hot gas is supplied to the combustion chamber 1 through a duct 6 having a  restriction 7 from an auxiliary gas generator 5. Fuel such as iso-propyl nitrate is contained in container 11 which is divided into two compartments 19, 22 by two pistons 16, 17, fuel passing from compartment 22 to gas generator 1 through line 12 containing valve 13, and fuel passing from compartment 19 to auxiliary gas generator 5 through line 14 containing valve 15. Combustion in the auxiliary gas cenerator is started by firing a cartridge in breech 9 the resulting gases passing through line 10 to the gas generator 5 and thence through line 6 to the main gas generator 1. A portion of gases from line 6 passes through line 21 to the space between pistons 16, 17 whereby the fuel compartments are pressurized and fuel passes to the auxiliary generator 5 where it is fired by the hot gases issuing from the breech 9; fuel also passes to the main generator 1 where it is fired by the hot gases issuing from the auxiliary chamber 5 through line 6. The area at the left hand side of the piston 16 is reduced compared with that at the right hand side by means of a piston rod 18 thus ensuring that the fuel in compartment 19 is at greater pressure than that in auxiliary generator 5. In Fig. 2 the fuel container 24 for the main gas generator 1 is separate from the container 23 for the auxiliary gas generator 5, but both are pressurized by gas from the auxiliary generator, the container 24 being of the diaphragm type and container 23 of the piston type.
Patent GB-1510017-A (GB)
Title: Connector for light-transmitting cables
IPC: G02B6/38
Filed: 1975-05-22
Abstract: 1510017 Light guides NIPPON ELECTRIC CO Ltd 22 May 1975 [5 June 1974] 22239/75 Heading G2J A connector for joining optical cables 10 end to end in correct alignment comprises a cylindrical body 1 having externally threaded ends 5, a flexible sleeve 4 located in the body, and a pair of tubular members 7 adapted to slide in the body 1 to deform the sleeve 4 radially inwardly. The sleeve 4 has at least one axial slit (3) and is tapered as illustrated for engagement with the members 7 which are moved axially of the body 1 by rotating members 6 on the threads 5. In a modification, see Fig. 4 (not shown), a spring (14) is located in the members 7 to urge the cables 10 towards each other.
Patent GB-867467-A (GB)
Title: Improvements in or relating to packing means for the transport of fragile articles
IPC: B65D81/107
Filed: 1959-06-29
Abstract: 867,467. Packing fragile articles. O'ROIRDAIN, D. June 29, 1959 [Oct. 3, 1958], No. 22278/59. Class 18. A packing for fragile articles comprises a block 1 of expanded polystyrene having cut-out cavities 2 extending from the top to near the bottom for accommodating the articles, the space above each article being filled up by a removable packing piece formed of the cutaway material. Such cavities are formed in a solid block by cutting a vertical slot 4 through which a cutting element is introduced and manipulated; a base plate 3 of the same material is stuck on to the bottom.
Patent GB-359535-A (GB)
Title: Improvements in or relating to brake systems for motor vehicles
IPC: B60T13/24
Filed: 1930-07-24
Abstract: 359,535. Vehicle brakes. DAIMLER CO., Ltd. and BOUCHER, J. W., Daimler Works, Coventry. July 24, 1930, No. 22287. [Class 103 (i).] In a fluid-pressure brake system for motor vehicles providing for direct mechanical operation the brake pedal is connected by a rod 7 to a pair of rocking levers 3, 4 operatively coupled together by bolts 5, 6. The lever 4 is connected to the control valve 16 by a rod 15 and the lever 3 is provided with an adjustable contact 23 arranged to engage in the extended movement of the brake pedal after that required for the opening of the valve with a lever 20 connected to a lever 35, Fig. 4, fixed on a shaft 24. Levers 27, 28 are rotatably carried on the shaft 24, the lever 27 being connected to the brakes and the lever 28 to the brake cylinder. The levers 27, 28 have overlapping arms 29, 31 arranged to provide a gap between them and also transmit movement of one to the other in such a manner that they may operate independently. A lever 34 is fixed to the shaft 24 and arranged to engage the lever 27 and provide a gap between them. Adjustable contacts 30, 33 are provided on the arms 29, 34. The lever 3, 4, 20 are pivoted on a fixed pin 1. The rod 15 passes through a hole in the lever 4 and has spherical abutments 17, 18 engaging each side of the lever. The abutment 18 is slidably supported on an extension of the rod 15 on which is mounted an adjustable spring 19, through which the valve is operated, and which is compressed when the brakes are directly applied. An adjustable pedal return spring 8 is mounted on a rod 9 connected to the bolt 6 and sliding in a swivel bearing 10 adapted to be engaged by a loose collar 12 forming an abutment for the spring, when the direct brake application comes into operation, whereupon the spring is compressed. The arms 29, 31 and the levers 27, 34 are normally in contact but in operation a gap is formed between the lever 27 and the lever 29 or 34 which is not operating. The levers 27, 28, 34 are mounted on a tubular member 36 which is fixed by a key 37 to the shaft 24 near the centre thereof thus providing for equalization of torsional deflection of the levers. The valve 16 controls brake cylinders for the front and rear brakes of a motor vehicle.
Patent GB-169575-A (GB)
Title: Improvements in and relating to electrical switch gear for controlling the supply ofelectricity to operate machinery and the like
IPC: H01H19/635
Filed: 1920-07-27
Abstract: 169,575. Renzi, W. de. July 27, 1920. Switches, quick-action; contacts; switch mechanism interlocking with lids. - Quick-action ironclad switch fuses have the switch blades a, Figs. 1 and 3, carried by a cross-head b which slides along a pair of parallel guide-rods c secured within the hinged lid d of the casing e. The external operating-handle g is secured to the end of the operating-spindle f, which oscillates in bearings on the lid d, an arm h secured to the shaft f having a forked end which engages a pin i on the cross-head b, causing it to move to and fro along the guiderods c. At the other side of the guide-rods c is pivoted a rocking spindle j on pins j<2> passing through the sides of the lid d. Between the operating and rocking spindles f, j and the crosshead b extend compression rods k, their rounded inner ends working in suitable recesses in the cross-head b, and their outer ends working loosely through holes in the spindles f, j, the encircling compression springs k bearing between the pivoted spindles and transverse pins secured through the rods k. In the opening and closing motion of the switch, the reaction of the compression rods k on the cross-head b causes a quick action after the rods k have passed the dead-centre position. The arrangement of the fixed switch and fuse contacts is such that the switch mechanism may easily be reversed for convenience of bring- ing in the supply leads from the top or the bottom of the switch casing. The fixed clip contacts l are attached by cleat-shaped brackets m, o to pairs of fixed parallel metal rods n sheathed in insulating tubes. The only necessary alteration of the fixed contacts on reversal of the position of the switch mechanism is the changing-over of the centre contacts, each of which carries both a switch and a fuse contact, thereby allowing the fuses p to occupy the lower half of the casing e. An interlocking cam r is mounted on the spindle f within the lid d and co-operates with a fixed pin r<1> within the casing e, to prevent opening or closing of the lid with the switch mechanism in the contact position. When the lid is turned end for end the handle g and cam r are removed and fitted at the other end of the spindle f, the cam r now interlocking with a second stud r<2> within the casing e. Duplicate pairs of projections r<3> are provided at each end of the lid d for the attachment of the hinges r<4> in either position of the switch mechanism. In an alternative form of switch fuse, Fig. 6, the fuses s are carried on rods n<1> secured to the cross-head b, and a further modification, Fig. 8, is described in which the cross-head b is mounted on two sliding guide-rods s<1> which pass through bearings in the lid d and are operated by an external handle s<2>. In the latter form, the operative-spindle f is replaced by a rocking spindle j<1> similar to the spindle j, and the fixed contacts l are mounted' on an insulating-slab s<3> secured within the casing e.
Patent GB-517435-A (GB)
Title: Process for the separation and purification of carbonyl compounds obtainable by side chain degradation of steroids
IPC: C07J75/00
Filed: 1938-07-27
Abstract: 517,435. Sex hormones. SOC. OF CHEMICAL INDUSTRY IN BASLE. July 27, 1938, Nos. 22348 and 22349. Convention dates, Aug. 4, 1937, and June 24, 1938. [Class 2 (iii)] Homologous saturated or unsaturated carbonyl compounds obtainable by the side chain degradation of sterols are separated and purified by reaction with carbonyl reagents containing in addition to the group capable of condensing with the carbonyl group a salt forming group or a group capable of conversion into a salt forming group followed by decomposition of the condensation product, characterized in that the mixture of carbonyl compounds is caused to react with the carbonyl reagents only partially and/or the condensation products obtained are decomposed by stages. The partial condensation may be effected by condensation at low temperatures, and the decomposition by stages may be effected by the use of different hydrogen ion concentrations. Suitable carbonyl reagents are basic hydrazides such as trialkylammonium or pyridinium fatty acid hydrazides or salts thereof such as trimethylammonium acetic acid hydrazide chloride, or acid hydrazides such as arylhydrazinesulphonic acids. The mixtures of homologous carbonyl compounds are particularly those obtained by the oxidation of sterols such as cholestanols, cholesterols, stigmasterol, cinchol, sitosterol, ergosterol, bile acids or their sterioisomers and derivatives such as esters and ethers. In examples (1) an alcoholic solution of the chromic acid oxidation product of cholesterol-dibromide acetate containing 10 per cent. of glacial acetic acid is treated with trimethylammonium acetic acid hydrazide by boiling for ¢ hour. Water is then added and nine-tenths of the acid is neutralized with sodium carbonate, and the non-ketonic fraction extracted with ether. The mother liquor is acidified with tartaric acid to congo and extracted with ether to give nor-cholestenolone acetate and pregnendone acetate which can be separated by fractional crystallization. The mother liquor is acidified with hydrochloric acid and again extracted with ether to give trans-dehydroandrosterone acetate. Instead of adding water as above it is also possible to work in an anhydrous medium using as a solvent a hydroxylic body such as glycol or glycerine. (2) A methyl alcoholic solution of the neutral fraction of the oxidation product of cholestenone with chromic acid containing 10 per cent. of acetic acid is treated with trimethylammonium acetic acid hydrazide. A fractional extraction is then performed as in example (1) to give pregnendione and nor-cholestenone from the less strongly active liquor and androstenedione from the more strongly acid liquid. (3) The hydroxy-ketone resulting from the oxidation of cholesterol acetate dibromide is treated as in example (1) but with the chloride of pyridinium acetic acid hydrazide and worked up as in examples (1) and (2) to give from the less acid liquor nor-cholestenone and pregnenolone, and from the more acid liquor transdehydroandrosterone.
Patent GB-1476361-A (GB)
Title: Selector circuit arrangements
IPC: G07B13/00
Filed: 1974-05-20
Abstract: 1476361 Logic circuits; taximeters HALDEX AB 20 May 1974 [30 May 1973] 22409/74 Headings G4H and G4T A selector circuit TV responsive to switching means TK for producing and applying logic signals P1-P4 to a computing unit TA comprises gate circuits (Fig. 2, not shown) responsive to signals a-f from TK for producing respective logic signals A-F, and means for maintaining a logic signal by locking the circuits against switching during continued application of the respective signal a-f, at least one of the circuits being adjustable to render the circuits responsive to signals only in predetermined sequence(s). As described, a taximeter computing unit receives signals representing distance travelled (from AK) and the tariff applicable (from TV). The inputs to TV are a ("free for hire"), b-e (tariffs) and f ("end of journey"); these give rise to outputs A-F connected to indicators L1- L6, a voltage regulator SR, and unit TA. Output F may be connected to inputs k-o (corresponding to b-e) so that a tariff is always applied to TA when input a is absent even if switch f is pressed. If terminals t, u are connected, it is impossible for the driver to reset the taximeter system directly from the "end-ofjourney" condition (f) to a tariff condition (b-e) without going through the sequence a, 6, ... ; this can be done, however, if t, v are connected instead. If terminals x, y are connected, then it is impossible to change from one tariff selection (b-e) to another without going through the sequence ... c, d, e,f, a, b, ... A bi-stable circuit AUT is connected by a switch g to inputs c-e to provide automatic tariff adjustment, e.g. after a certain journey distance or at a certain fare level.
Patent GB-1343489-A (GB)
Title: Steel brake shoe for an emergency brake
IPC: F16D69/02
Filed: 1971-04-19
Abstract: 1343489 Track brakes; brake shoes MASCHINENFABRIK SCHARF GmbH 19 April 1971 [14 March 1970] 22463/71 Heading F2E An emergency brake for an overhead railway comprises at least one steel brake shoe 1 which is pressed against a rail to effect braking, the braking surface of the shoe being coated with a friction-increasing material comprising hardmetal grains 5 spacedly embedded in a solder 'layer 6 molten on to the inner surface 2 of the shoe 1 said grains having a greatest dimension of substantially 1À5 to 3 mm. and preferably of substantially 2 to 2À5 mm. The grains 5, which are made of a known sinter material, are directly supported on the inner surface 2 of the brake shoe 1 and have a sharp edged shape. The solder layer 6 has a composition of substantially 42 to 54% copper and 58 to 46% zinc and the brake shoe 1 is of steel having the maximum contents of substantially 0À20% carbon, 0À55% silicon, 1À5% manganese, 0À05% phosphorus and 0À05% sulphur.
Patent GB-1338173-A (GB)
Title: Endoscopes having a photographic camera associated therewith
IPC: A61B1/04
Filed: 1971-04-19
Abstract: 1338173 Endoscopic photography RICHARD WOLF GmbH 19 April 1971 [10 March 1970] 22535/71 Heading G2A In an endoscope having an attached camera for photographing body cavities, the light reflected from the object being photographed passes through a beam splitter, part of the light being reflected to a photo-electric light-evaluating device. The camera shown is of the reflex type, the mirror 9 which reflects light along the path 12 to the viewfinder being swung out of the path to the film 10. The illuminating source is a flash tube (not shown), the light from which passes along a light-conducting cable 5 into the endoscopic shaft 7 and is conveyed to the far end thereof. The reflected light passes through the optical system 2 of the camera of the film 10. In its path is a beam splitter 8 formed by two prisms, which reflects about 10% of the incident light down to a photoresistor device 11. This measures the quantity of light received, and by means of an integrating circuit arrangement switches off the tube after the light reaches an optimum value. Thus a photographic exposure may be made without any adjustment of the lens aperture being required. The beam splitter may be disposed before the camera optical system, as at position 16, instead of after it, in which case the photo-electric device is also mounted similarly, as at 18.