baber/WOPTO huggingface dataset:
Patent GB-1303731-A (GB)
IPC: F02K9/34
Filed: 1970-05-26
Abstract: 1303731 Rocket motors MESSERSCHMITTBOLKOW-BLOHM GmbH 26 May 1970 [23 May 1969] 25320/70 Heading F3A A rocket motor comprises an end-burning propellant charge 7 formed with a bore 10 through which the hot propellant gases can pass, the bore being provided with insulation 15 which is progressively destroyed at a slower rate than that at which the propellant charge burns away (see broken lines 17). The insulation 15 consists of a layer 14 of non-inflammable material, which is capacable of being destroyed by scaling when subject to hot propellant gases or flames on both sides, and a layer 16 of combustible material, e.g. plastics, which has a slower rate of combustion than the propellant charge and has an elasticity to enable it to take up the thermal expansion of the propellant charge. The propellant charge is arranged to burn from both ends. An additional charge 6 is also provided.  (For Figure see next page.)
Patent GB-773546-A (GB)
Title: Two by two rib knitted fabric with selvage
IPC: D04B19/00
Filed: 1954-09-01
Abstract: 773,546. Knitting. ZIEVE, W. A. Sept: 1, 1954, No. 25343/54. Class 74 (2). A series of 2 x 2 rib portions m, k fabric are knitted in string formation and are connected by a draw thread Z knitted on spaced needles. The course following the draw thread Z is knitted of a thread a on those needles which have not knitted the draw thread Z and which have cast off the loops that they previously held. The subsequent course a also is knitted on spaced needles omitting at least some of the needles which knitted the thread a. This arrangement ensures that when the draw thread is removed, a non-ravelling selvedge is produced for the following portion k. To deter unravelling of the adjacent selvedge of the portion m, some of the loops in the wales which contain the loops of the draw thread, are held prior to feeding of the draw thread. This tensions the fabric in these wales and relieves the strain on the wales which have their loops subsequently cast off the needles.
Patent GB-1463444-A (GB)
IPC: E21B43/24
Filed: 1975-06-13
Abstract: 1463444 Oil recovery SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 13 June 1975 25359/75 Heading E1F Oil having a viscosity greater than 100 cps is recovered from a formation comprising permeable blocks surrounded by a natural fracture network by (a) displacing oil from the fracture network in a region of the formation by injecting fluid into the region, (b) circulating hot aqueous fluid through the fracture network in the region to increase the temperature of the blocks in that region, (c) recovering oil during the previous steps (a) and (b), (d) stopping the circulation of hot aqueous fluid and replacing this fluid in the fracture network by a gas under pressure, (e) allowing drainage of oil from the pore space of the blocks in the region into the gas containing fractures, and (f) collecting and recovering drained oil from the lower part of the fractures in the region. The fluid injected in step (a) may be gas, steam, or water having a higher or lower temperature than the original temperature of the formation. The hot aqueous fluid circulated in step (b) may be water having a temperature higher than the original temperature of the formation, steam, or a mixture thereof. The gas under pressure in step (d) may be steam, air or natural gas that is kept stagnant in the fracture network in the region during the step (e). Steam may be added to the gas containing fractures during step (e) to compensate for heat losses in the region.
Patent GB-1360113-A (GB)
Title: Strap handle anchorage
IPC: A45C13/26
Filed: 1972-05-31
Abstract: 1360113 Handles SCHLEGEL MFG CO 31 May 1972 [21 June 1971] 25420/72 Headings A4G and A4U A strap handle is anchored by a retainer 12 which straddles an end portion of the strap 10, the retainer having a hole overlying the strap through which is passed a fastener 14 which passes through the strap and into the mounting element 11. The retainer has laterally extending fins 15, and an escutcheon plate 16 having slots 17 which receives and slides over the fins is slid into place to cover the retainer. The fins are so shaped, e.g. by having oblique edges, to grip the slots and retain the escutcheon in place. Fastener 14 may be a self-tapping screw or a rivet.
Patent GB-1261228-A (GB)
Title: Improvements in or relating to self-cleaning solvent filters
Inventor: MAESTRELLI GINO
IPC: B01D29/15
Filed: 1969-05-19
Abstract: 1,261,228. Liquid filter. G. MAESTRELLI. 19 May, 1969 [5 March, 1969], No. 25434/69. Addition to 1,181,273. Heading B1D. A filter used in the solvent circuit of a drycleaning machine comprises a housing enclosing one or more assemblies of filter elements D, which are cleaned by rotation of central shaft(s) 18, on which the assembly is mounted, in a continuous or reciprocating fashion; the resulting turbulence being increased by means F which inhibits the solvent in the housing from rotating freely with the assembly. In Fig. 2 radial baffles F are attached to the housing wall and extend axially of the cylindrical housing. In Fig. 3 (not shown) the baffles (F) are inclined to the radial planes, forming recesses opening in the opposite direction to that in which the assembly rotates. In Fig. 5 (not shown) the baffles are replaced by beads indented in the housing wall, and in Fig. 6 (not shown) baffles (F 4 ) extend helically of the housing, not axially. In Fig. 4 (not shown) a housing of square cross-section provides corners which induce turbulence in the same way as baffles in other embodiments. The cleaning action may be enhanced by draining solvent from the housing as the filter elements rotate. The elements are of wire wound on supporting frames round central perforate tubes 30, and may be lozenge-shaped in cross-section and radially oriented, or of circular or hexagonal section (Figs. 3, 5). The two ends of each tube 30 communicate through upper and lower supports (Fig. 1, not shown) with hollow shaft 18 through which filtrate is discharged. Filter aid may be applied to the outer surfaces of elements D, and the housing has a valve-controlled outlet 16 for periodic discharge of accumulated solids.
Patent GB-792856-A (GB)
Title: Dual force inching brake for power presses
IPC: F16D65/14
Filed: 1956-08-21
Abstract: 792,856. Power press brakes. DANLY MACHINE SPECIALTIES, Inc. Aug. 21, 1956 [Jan. 9, 1956], No. 25467/56. Class 103 (1). A brake for a power press comprises a disc 30 coupled to a press operating member by a shaft 28 which is adapted normally to be clamped between a stationary brake plate 42 and a movable brake plate 62 urged together by the action of springs 66, the brake being released by the supply of pressure fluid through conduits 144 and 130 to flex an annular diaphragm 76. When the brake is applied by springs 66, it may be " inched " by a motor driving the worm 76 which meshes with worm wheel 16. In order that greater pressure may be exerted to clamp the plate 30 when it is required that the press shall do work during the inching period, pressure fluid may be supplied through conduits 142 and 112 to an annular space 92 where it produces a force on the movable plate 62 which assists the springs 66.
Patent GB-651067-A (GB)
Title: Method of manufacturing of alloyed steel by sintering
IPC: C22C33/02
Filed: 1948-09-30
Abstract: 651,067. Powder metallurgy. BOHLER & CO. AKT.-GES., GEB. Sept. 30, 1948,. No. 25536. Convention date, Nov. 21, 1942. [Class 83 (iv)] Bodies of alloy steel are made by compacting and sintering a mixture of two kinds of powder, one being a soft, ductile iron alloy, the oxides of which are easily reduced and the other being a eutectic forming a low melting point phase on sintering and introducing carbon into .the final product in the form of carbides. As an example, 95 parts by weight of a powdered iron nickel alloy are mixed with 5 parts by weight of a disintegrated melt of iron, manganese, chromium and carbon of eutectic composition and after pressing, are sintered in a protective atmosphere.
Patent GB-983240-A (GB)
Title: Improvements in and relating to flexible containers for liquids and the like
IPC: B65D88/16
Filed: 1961-07-14
Abstract: 983,240. Laminates. JOINT FRANCAIS. July 14, 1961 [May 3, 1961], No. 25548/61. Heading B5N. [Also in Division B8] A flexible container for storing and transporting liquid or viscous products such as hydrocarbons is characterized in that its wall is weatherproof and has a high mechanical resistance and comprises a textile reinforcement 12, e.g. nylon, coated on each face with a mixture 11 on an elastomer basis, e.g. an acrylic nitrile or styrene butadiene copolymer, the internal face being also lined by adhesion with a thin film 10 of a non-plasticized plastic material, e.g. polyamide, unaffected by the contents or the vulcanization system of the elastomer. The base for the coating may be chlorobutadiene plus polyvinyl chloride, and the coating may contain plasticizers to improve its flexibility and resistance to low temperatures. There may be more than one textile reinforcement. The container has a filling orifice 7 and is made up of widths joined as shown in Fig. 6, the width 11a being without the protective film 10a over a short extent, and the two widths 11 and 11a connected by a joining material 14 vulcanized by hot welding over which is applied a joint covering 15 similar to films 10, 10a. Specification 807,018 is referred to.
Patent GB-702329-A (GB)
Title: Improvements in a hydraulic scale capsule
IPC: G01G5/00
Filed: 1950-10-20
Abstract: 702,329. Weighing apparatus. AVERY, Ltd., W. & T. (Williams, L. S.). Oct. 20, 1950, No. 25564/50. Class 143 In a hydraulic weighing scale the capsules which support the load each comprise an upper plate 1 having a flange 21 which surrounds the periphery of a lower plate 2, and a plurality of closely spaced bendable, but not stretchable, strips 24 which extend between the flange 21 and plate 2 and which, together with plates 1, 2 support a rubber bladder 19, 20 containing the hydraulic fluid and connected hydraulically with the weight indicating mechanism through a self-sealing coupling 29. As shown in Fig. IV, the bladder consists cf a pair of rubber sheets 19, 20 having beads 43. 42 which fit into annular grooves in flange 21 and plate 1 and are clamped therebetween to form a seal, but in a modification, Fig. VII (not shown), the bladder is moulded from a single sheet of rubber. The strips 24 are constructed by cutting radial slots in a sheet of metal pressed into a split toroidal shape; the edges of this sheet being welded to annular strips 46, 49 which fit into grooves in plate 2 and flange 21. To facilitate filling the bladder a number of levers 35, fulcrumed on an extension 22 of flange 21 and spring-pressed into engagement with an abutment 36 on plate 2, are provided; these are so arranged that when the bladder is correctly filled their ends 37g are aligned with a ,surface 37 on flange 21. The extension 22 also serves to limit upward movement of plate 1. As shown in Fig. 1, all the capsules are interconnected by a rigid frame 14 bolted to the top plates 1, and the load platform 12 is supported on each capsule by cupped members 8, 9, 10 separated by rubber inserts 11. Specification 635,702 is referred to.
Patent GB-1467241-A (GB)
Title: Tool holders and jigs primarily for use by wood-workers
IPC: B27F1/12
Filed: 1974-05-17
Abstract: 1467241 Dovetailing J L WAITE 17 May 1974 [29 May 1973] 25591/73 Heading B5L In a jig and co-operating tool holder for producing complementary dovetail joint grooves in pairs of wooden workpieces, the jig comprises an integral workpiece support 18 having mutually perpendicular workpiece support surfaces 19, 20 and a tool holder guide member 12 having sides substantially parallel to the surface 20 and adjustably mounted on the support 18 for movement towards and away from said surface so as to determine horizontal cutting depth "d", and the tool holder comprises a cylindrical or generally prismatic body 3 having opposed transverse grooves 11 for holder guiding engagement with at least one slot in the guide member 12, a shaft 6 rotatably mounted in the body and having projecting ends 7, 10 respectively accepting a conical cutting tool 9 and connectible to a rotary drive means such as a portable hand or power drill, and a transverse shank 14 secured in the body in alignment with the grooves and threaded at least in part to accept a knurled circular periphery nut 15 which is of greater diameter than the distance between the grooves 11 and is engageable with top edges of the guide member so as to determine vertical cutting depth "c". A handle 16 also threaded on the shank acts as a nut locking means and may be hollow for storage of different size cutting tools. In use, workpieces A, B are held, as by G-clamps, against the surfaces 19, 20. As shown, the guide member is comb-like, having several parallel slots 21 and has each of its ends attached to the support 18 by a screw connection 23, an arm 22 and a horizontal adjustment screw-and-slot connection 24, 25. Further, fine, horizontal adjustment of the guide member, to cater for re-grinding of cutting tools, is provided by relatively longitudinally adjustable members 27, 28 having co-operating tapered surfaces 30, 32 and respectively engageable with or attached to the guide member and engageable with the workpiece B. To provide for large tool holder/guide member slot bearing surfaces, the slots 21 are spaced at twice the required pitch of the dovetail grooves, and accordingly the guide member can be moved laterally between two cutting positions the distance between which is equal to the required pitch.
Patent GB-990815-A (GB)
Title: Rolling mill
IPC: B21B11/00
Filed: 1961-07-17
Abstract: 990,815. Rolling; altering physical properties. AEROPROJECTS Inc. July 17, 1961 [July 28, 1960], No. 25816/61. Headings B3M and B3V. The rolls of a mill are vibrated in an axial direction at such a frequency and energy level that the grain size of the metal to be rolled is reduced. Rolls 12 and 14 have exponentially shaped portions 52 and are supported by backing discs 16 and backing rolls 26, the rolls 26 bearing on flanges 16a of the discs to prevent transmission of vibration. Magneto-strictive transducers are attached to each end of both rolls and are supplied through slip-rings 98, sleeves 68 being so dimensioned that a node is formed at 78 to isolate the frame of the rolls from vibrations. The vibration generator can be an electrostrictive or piezoelectric transducer or can be mechanical, electromagnetic or hydraulic. Specification 837,279 is referred to.
Patent GB-445344-A (GB)
Title: Improved method of manufacturing bulbs for electric incandescent lamps
IPC: C03C4/02
Filed: 1934-09-07
Abstract: 445,344. Glass manufacture. JEROME & BONNEFOY & CIE, 37, Rue Raspail, Courbevoie, Seine, France, and LAMPE YVEL, AUTO LAMPE & CIE, ANCIENS ETABLISSEMENTS L. LEVY ET A. MONNIER, 12, Rue Torricelli, Paris. Sept. 7, 1934, No. 25817. Convention date, Oct. 27, 1933. [Class 56] The bulb of an incandescent electric lamp, particularly for motor-car headlamps, consists of a glass which is made by melting a batch containing cadmium sulphide and sulphur together with selenium and tin oxide. Preferably, the selenium and tin oxide are added to the batch in the proportion of 0À005 parts by weight and 0À04 parts, respectively, to 10 parts of sand.
Patent GB-206138-A (GB)
Title: Improvements in differentials
IPC: F16D41/10
Filed: 1923-10-16
Abstract: 206,138. Andrade, C. Oct. 30, 1922, [Convention date]. Differential gearing of the type comprising two friction ratchet clutches is modified so that while the locking rollers C, C<1> of the two clutches have limited relative displacements, the rollers of each clutch are constrained to move together circumferentially. Thus in the arrangement shown in Figs. 1, 2, A is the driving-element with an arcshaped depression A<11> for each roller, and B<1>, B<2> are differentially-driven circular elements. The rollers C of one clutch turn upon gudgeons Z<2>, Fig. 6, projecting from a flat annulus Z. The rollers C<1> of the other clutch turn upon similar gudgeons Y<2>, Fig. 5, connected by an annulus Y. The limited play necessary for independent action of the clutches is obtained by a snug Z' on the annulus Z extending into a relatively large opening Y<1> in the annulus Y. In a modification shown in Figs. 7, 9, necks C<3> upon the rollers are engaged by radial slots Y<3> in an annular flat yoke Y'. In a further modification shown in Fig. 10, the yoke Y<31> embraces the rollers. Specifications 201,086 and 203,286 are referred to.
Patent GB-335030-A (GB)
Title: Improved lubricating pump
IPC: F16N13/14
Filed: 1929-08-26
Abstract: 335,030. Moores, J., and Moores, C. C. Aug. 26, 1929. Cam-actuated pumps; stroke, varying; oscillating and revolving- cylinder pumps. -A lubricator comprises an oscillating or rotating block a provided with a number of bores b in which plungers o are reciprocated by engagement with fixed cam stops i in the end plate g of the casing f. Balls r are arranged between the plungers and cams in extensions of the cylinders, and the cams may be adjusted to vary the plunger strokes. The block a is pressed by a spring n against a valve plate provided with inlet passages k and delivery ducts m. The arrangement of the balls r in the cylinders prevents lateral thrust from being transmitted to the plungers.
Patent GB-822109-A (GB)
Title: Improvements relating to the "lumping" of fine-grained iron ores
IPC: C22B1/14
Filed: 1957-08-16
Abstract: Fine-grained iron ore is converted to lumps, of a size suitable to be smelted in a shaft furnace, by introducing the powdered ore into the combustion chamber of a slag-tap boiler, with a melting chamber, and solidifying the mixture of slag and partially reduced iron oxide in lumps of the desired size.  The ore may either be mixed with the fuel or blown separately into the combustion chamber.  The solidified material is obtained in a porous condition either by blowing air, flue-gas or steam into the solidifying slag or by adding saw dust, coal dust or limestone dust.  Limestone or a mixture of ore and limestone having a grain-size of 2 to 10 mm. may also be added to the slag flowing from the boiler and a suitable apparatus for carrying out the process consists of a slag-tap boiler with a sloping rotary drum arranged below it into the upper end of which the liquid slag and limestone and ore are introduced, and from the lower end of which fragments of ore emerge.
Patent GB-796005-A (GB)
Title: Process for the preparation of decacyclene
IPC: C07C2/86
Filed: 1956-08-24
Abstract: Decacyclene is prepared by heating dinaphthylenethiophene with acenaphthylene at 160-260 DEG  C.  A solvent may be present such as methylnaphthalene, dimethylnaphthalenes, naphthalene or trichlorobenzenes.
Patent GB-589070-A (GB)
Title: Alkylation of phenols
IPC: C07C37/14
Filed: 1944-12-27
Abstract: Phenols are alkylated by treating them with an olefine containing at least three carbon atoms at a temperature of 30-70 DEG  C. in the presence of a catalytic amount (e.g. at least 2 per cent, preferably 5-10 per cent by weight) of tetraphosphoric acid H6P4O3, the greater part of which can be recovered and used again.  The alkylation can be operated as a batch-type process by agitating a mixture of tetraphosphoric acid with the phenol whilst the olefine is introduced, or as a continuous process by allowing a mixture of phenol and tetraphosphoric acid to flow down a packed reaction tower in countercurrent to an upward flow of olefine gas.  Any phenolic material may be alkylated by this process, preferably simple monohydroxy phenols, e.g. phenol, cresols, xylenols, ethyl phenols and mixtures such as cresylic acid.  Specified olefines are propylene and branched chain olefines such as isobutylene and isoamylene.  In examples: (1) p-cresol is treated with excess of isobutylene at 40 DEG  C. in the presence of about 5 per cent by weight of tetraphosphoric acid yielding 2 : 6-di-tert.-butyl-4-methylphenol; (2) m-cresol and 5 per cent by weight of tetraphosphoric acid are agitated and heated to 60-66 DEG  C. whilst an equimolecular proportion of isobutylene is introduced, to produce tert.-butyl-m-cresol.
Patent GB-776229-A (GB)
Title: An improved driving mechanism for the type bed of cylinder printing machines
IPC: B41F3/58
Filed: 1955-09-12
Abstract: 776,229. Cylinder printing-presses. SCHNELLPRESSENFABRIK AKT.- GES. HEIDELBERG. Sept. 12, 1955 [Oct. 26, 1954], No. 25957/55. Class 100(2) Bed reciprocating mechanism for acylinder printing machine includes an internally toothed segment 19a along which rolls a gear wheel 15, driven, for example, by a crank pin 17a and connecting rod 16, the wheel 15 engaging a further gear wheel 8 mounted to rotate about the segment axis and serving directly or indirectly to transmit the motion to a toothed rack or racks on the type-bed 1. The mechanism may be mounted centrally of the type bed, so that the gear wheel 8 engages directly on a central rack thereon, or to one side as shown in Fig. 8 wherein gears 8a, 8b fixed to the shaft 9a of the gear 8 transmit the drive to lateral racks on the bed; in either case the mechanism may be completely enclosed (and an oil-bath may be provided), e.g. by an oil-tight cover 20 which provides additional support to the crank-pin 17a by means of a return crank 22 and bearing pin 23. The shaft 24 of the crank-pin 17a may be driven by simple gearing from a driving shaft 26 fitted with a hand-wheel 29 and also connected by a belt 28 to a motor (not shown), or a varying-speed drive may be incorporated comprising a pair of driven gears 18a, 18b bolted together by spacing pins at intervals and linked at 31 to a lagging crank 30 secured to the shaft 24, the latter being eccentric with respect to the large bearings 34, 35 of the gear 18a, 18b this arrangement results in the printing stroke taking 210 degrees of a revolution of the gears 18a, 18b (with the bed moving approximately uniformly) and the the return stroke the remaining 150 degrees. For exactly uniform bed movement during printing, the segment 19a, instead of being fixed to the machine frame, may be secured between flanges on roller levers 38, 39 rotatable about the shaft 9a and carrying rollers 42, 44 respectively engaging complementary cam discs 45, 46 on the return crank 22 and the main crank 24a. The mechanism may also be applied to vertical type beds. Specification 374,441 is referred to.
Patent GB-1373483-A (GB)
Title: Dialkyl acetals of heterocyclic ureidoacetaldehyde and their water  soluble salts
IPC: C07D285/135
Filed: 1973-05-31
Abstract: 1373483 Thiadiazole derivatives VELSICOL CHEMICAL CORP 31 May 1973 26013/73 Heading C2C  Novel thiadiazole ureas of the Formula I wherein R<SP>1</SP> and R<SP>2</SP> are C 1-3  alkyl groups and X is an isopropyl, t.-butyl or trifluoromethyl group, and water-soluble salts thereof, are prepared by reacting isocyanate dimers of the Formula II with dialkyl acetals of the formula R<SP>1</SP>OCH(OR<SP>2</SP>)-CH 2 -NH-CH 3 . The isocyanate dimers of the Formula II above may be prepared by reacting phosgene with appropriate aminothiadiazoles. Herbicidal compositions comprise as active ingredients the above thiadiazole ureas of Formula I.