baber/WOPTO huggingface dataset:
Patent GB-519550-A (GB)
Title: Improvements in the manufacture of metal tube
IPC: B21C37/15
Filed: 1938-11-15
Abstract: 519,550. Making multiply tubes. ARMSTRONG, J. J. V., (American Rolling Mill Co.). Nov. 15, 1938, No. 33153. [Classes 83 (ii) and 83 (iv)] Angular bending; soldering.-In making soldered multiply metal tubes from a number of metal strips, the inner ply is first formed into tubular shape with edges projecting tangentially outwards and with some of the metal curved on a radius which is smaller than the radius of the finished ply, the edges are then fashioned inwardly into seam forming relationship thus placing the metal under stress within the elastic limit by increasing its radius of curvature so as to hold the edges in abutment and then another strip is fashioned into an outer ply round the inner ply and the plies and seams by sealing metal. The strip 1 is bent successively by rolls 3, 4, 5 into U and then U-form with the. bight portion in each case on a radius corresponding to that of the finished ply and is then bent by rolls 6 into the form shown in Fig. 12 in which the parts between I and Y are bent to a radius smaller than that of the finished, ply and 'the edges are straight. The blank then passes through the rolls 7 to bring the edges together and hold them by the force exerted by the stressed metal. The outer strip is fed through bevelling rolls 8 and after passing through the die 24 is first bent by rolls 9, the portions from a to b being on a radius smaller than that of the finished ply. The rolls 10 then fashion the outer strip further, the extreme edge portions lying closer to the outer periphery of the inner ply than do the intermediate portions between a and b. The rolls 11 then complete the outer ply, the bevelled edges being brought together to form a scarfed seam, and the part between points a and b being straightened somewhat and gripping the inner ply. The composite tube then passes through rolls 12, 13, 14 and then through a furnace or electric heater to melt the sealing metal which may be initially provided as a coating on the strips. The electric heater may consist of three pairs of electrodes 15, 18, 16, of which 15 and 16 are connected to the same terminal of the transformer 17 so as to avoid insulation of the other parts of the apparatus. The tube is finally cooled preferably in a neutral or reducing atmosphere. The outer ply may alternatively be provided with a butt seam. The strips may be of ferrous metal and the sealing metal lead and tin or cuprous metal.
Patent GB-1359210-A (GB)
Title: Backplate of an electrolyser
IPC: C25B9/02
Filed: 1971-07-15
Abstract: 1359210 Bipolar cells P P G Industries Inc 15 July 1971 [17 July 1970 1 July 1971] 33162/71 Heading C7B A bipolar cell unit comprises a backplate providing a barrier between bipolar cells at least one cathode extending from one surface of the backplate and at least one anode extending from the other surface, the backplate comprising a catholyte-resistant member and an anolyteresistant member, and means for suppression of diffusion of atomic hydrogen through the catholyte resistant member and/or a gap between the two members for the formation of molecular hydrogen from atomic hydrogen and for the release of molecular hydrogen to the atmosphere. The catholyte resistant member may be an iron metal or alloy plate and the anolyte resistant member may be a value metal sheet i.e. Ti, Ta, W. The means for suppressing the diffusion of atomic hydrogen may comprise a sheet between the catholyte-resistant member and the cathode or a coating on the catholyte-resistant member, having a lower atomic hydrogen permeability and/or higher hydrogen over potential than the catholyte resistant member; the sheet may comprise Cu, Zn, Cd, Pb, Mo, Fe, and the coating may be of V, Cr, Mn, Co, Ni, Cu, Zn, Nl, Mo, Ag, Cd, Rh, Ta, W, Ir, Au, Zr, Pb.
Patent GB-629854-A (GB)
Title: Improvements in and relating to door locking means
IPC: E05B13/10
Filed: 1947-12-16
Abstract: 629,854. Door latches. CLARK, J. A. Dec. 16, 1947, No. 33166. Addition to 591,914. [Class 44] In a latch or lock as claimed in the parent Specification, the bearing surface between the opposed circumferential surfaces of the spigot and sleeve is of reduced axial length such that a clearance is provided over a substantial length of the opposed surfaces, so that binding action between spigot and sleeve is not caused by applying lateral force to the handle, and operation of the spindle by frictional connection prevented. In the arrangements shown in Figs. 1 and 4, applied to the construction of Fig. 1 of the prior Specification, clearance A is provided between the sleeve 2 and the spigot 4, contact occurring only at B, so that the alignment of spigot and sleeve can be upset by pressure on the handle without causing binding. Either the spigot or the bore of the sleeve may be tapered to provide the clearance, or an annular rib 4b, Fig. 4, may be formed on the spigot, or a double taper may be used. Similarly, to prevent operation of the sleeve 2 by frictional contact with the escutcheon member 3 after removing the screws securing the latter to the door, the outer surface of the sleeve may be formed with a single or double taper, Fig. 1, or the bore in member 3 may be tapered, Fig. 4. The bearings of reduced axial length may also be provided by ball or roller bearing means between the surfaces.
Patent GB-729199-A (GB)
Title: An improved method of preparing citrous fruit liquors or beverages
IPC: A23L2/06
Filed: 1953-11-30
Abstract: Citrus, e.g. orange, fruit beverages are made by finely shredding uncut unpeeled fruit whilst it is immersed in sugar syrup.  The process is continued until the desired concentration of syrup is obtained, and fruit solids are filtered off.  The syrup is maintained at about 100 DEG F.  Suitable apparatus for the process is described in Specification 729,200.
Patent GB-521316-A (GB)
Title: Improvements in and relating to apparatus for the electrostatic precipitation of suspended particles from gases
IPC: B03C3/68
Filed: 1938-11-15
Abstract: 521,316. Automatic control systems for electrostatic precipitators; converting A.C. to D.C. SMETHURST, H., MILN, P. M., and METROPOLITAN - VICKERS ELECTRICAL CO., Ltd. Nov. 15, 1938, No. 33234. Drawings to Specification. [Classes 38 (ii) and 38 (iv)] Voltage control.-Apparatus for electrostatic precipitation of dust &c. is operated at maximum voltage by automatic control thereof in accordance with the frequency "snapping" or flashing-over. An electric motor controlling a moving iron induction regulator in series with a transformer and commutator rectifier has forward and reverse switches controlled by separate banks of contacts in a ratchet-operated stepping switch which is moved forward one contact at each snap, its actuating coil being fed from a current transformer through filter circuits eliminating rectifier ripple. A timing switch closes, say, every five minutes to cause voltage raising or lowering if required, according to the position reached by the stepping switch, which is then reset. The duration of each " raise " is determined by the occurrence of a " snap," that of each " lower by an auxiliary relay, preferably thermal, with potentiometer for adjustment. A time-delayed over-current automatic-releasing cut-out in the precipitator circuit operates a second stopping switch associated with another timing switch so that the cut-out and the whole system are locked out should it operate a given number of times in say half an hour. Interlocks ensure lowest voltage position of the regulator for restarting. Manual control of the regulator motor by push-buttons may be obtained after actuating a normal change-over switch disabling the automatic control. To ensure correct polarity of precipitator electrode a polarized relay in the high or low voltage circuit causes a momentary rupture of the circuit of the motor of the rectifier or reverses the low tension supply. Supervisory indicating lamps and an audible alarm are provided. The system which is not confined to mechanical rectifiers, is fully described with a circuit diagram.
Patent GB-429038-A (GB)
Title: Improvements in filing and binding devices for periodicals
IPC: B42D17/00
Filed: 1933-11-28
Abstract: 429,038. Fold-engaging files. CATON, A. A., 30, Bicknell Street, Blackburn. Nov. 28, 1933, No. 33250. [Class 146 (i)] In a binding case of the type in which a bar or plate, carrying pins or fingers to engage the folds in periodicals, sheets, and the like, extends transversely of the top and bottom of the back, the pins or fingers are fixed to or form part of a three leaf hinge forming the transverse member. The fingers c, Fig. 8, may be of graduated length and be bent inwards at the end to grip the folds of the sheets &c., and are mounted on the three-fold hinge whose outer links C<3> are riveted to the covers A of the binder and whose axes are coincident with the joins between the covers and back B. Alternatively, one set of pins may be mounted on a plate C<4>, Fig. 5, sliding in guides C<1> against the action of springs so that the bound material can be easily removed or introduced. If the fingers c are graduated in length the long finger on one end of the back is arranged opposite the short on the other. The member C carrying the fingers c may be in two parts hinged together so that one can be turned outwards to release the bound material, the hinged part being normally retained by a spring. The fingers c may be stamped integrally from the metal of the member C which may have a channel portion to fit over the top edge of the back, or may be fixed to a transverse member riveted to the hinge.
Patent GB-463816-A (GB)
Title: Improvements relating to reinforcements for strong rooms, bombproof shelters and the like
IPC: E05G1/024
Filed: 1935-11-30
Abstract: 463,816. Wire fabrics. CHATWOOD SAFE CO., Ltd., and BRUCKSHAW, H. S. Nov. 30, 1935, No. 33269. [Class 45] [Also in Groups X and XXV] Relates to metal reinforcements for strongrooms, bombproof shelters, and like concrete structures, of the type comprising interwoven rows of interwoven coils f having rods a passing through the spaces between the peripheries of the coils and further rods b passing through adjacent coils where they are interwoven. According to the invention, further rod reinforcements, arranged at right-angles to the axes of the coils, are passed through the coils, each rod passing over and under and touching the metal of the convolutions through which it passes. In the construction shown, these rods c, d, are arranged in two directions at right-angles to one another and pass on either side of the rods b. Additional rods e pass axially through the coils and between the rods c, d. Rods disposed diagonally across the coils in a vertical plane may be included in the reinforcement. Specifications 244,144, 270,109, [both in Class 45], and 270,863, [Class 44], are referred to.
Patent GB-1012206-A (GB)
Title: Process for the isomerization of light normal paraffins
IPC: B01J29/18
Filed: 1964-08-17
Abstract: Light normal paraffins, e.g. n-butane, n-pentane and n-hexane are isomerized at 100 DEG  to 330 DEG  C. in presence of hydrogen and a catalyst comprising hydrogen mordenite.  The preferred catalysts are prepared from the sodium form of mordenite by replacing at least 95% of the sodium with hydrogen.  The L.H.S.V. is 0.5 to 10 and the hydrogen: paraffin mole ratio is 1:1 to 25:1.  The preferred pressure range is from atmospheric to 70 atmos. gauge and the hydrogen mordenite may contain 0.01 to 20% by weight of a metal of Groups IB, VIB, and VIII, e.g. copper, silver, chromium, manganese, iron, cobalt, nickel, zinc and cadmium, introduced by ion-exchange or impregnation.
Patent GB-1421720-A (GB)
Title: Disintegrating devices
IPC: B01F15/00
Filed: 1971-12-17
Abstract: 1421720 Comminuting apparatus; Immersion mixer SILVERSON MACHINES LTD 14 Dec 1972 [17 Dec 1971] 33593/75 Divided out of 1419946 Headings B1C and B2A The description is the same as that of the parent Specification 1419946 but the claims relate to a retaining means radially outwardly of and supporting the stator.
Patent GB-781700-A (GB)
Title: Manufacture of pseudo-sapogenins
IPC: C07J75/00
Filed: 1953-12-03
Abstract: Pseudo-sapogenins are prepared by heating spirostanes with propionic anhydride under atmospheric pressure.  The heating may be conducted at a temperature in the neighbourhood of the boiling point of the reaction mixture-preferably under reflux.  The propionic acid formed during the reaction is preferably distilled off.  The spirostane reactant may be a normal or isospirostane of the normal or allosteroid series which is saturated or unsaturated in the nucleus and may contain substituents, e.g. a free or functionally converted hydroxy or oxo group in the 3-, 11- or 12-position.  Spirostane reactants mentioned are sarsasapogenin, diosgenin, tigogenin, D 4-tigogenone, 11-ketotigogenin, smilogenin, hecogenin, rockogenin, botogenin and monogenin.  In the examples pseudo-diosgenin dipropionate, pseudo-hecogenin dipropionate and 11-keto-pseudo-tigogenin dipropionate are prepared.  Specification 552,047, [Group IV], is referred to.
Patent GB-819698-A (GB)
Title: Improvements in and relating to mechanism for the opening and closing of windows, ventilating shutters or the like
Inventor: BENTLEY JAMES SYDNEY
IPC: E05F11/34
Filed: 1957-10-29
Abstract: 819,698. Window operating mechanism. TELEFLEX PRODUCTS Ltd. Oct. 29, 1957, No. 33750/57. Class 20(3) In mechanism for operating windows, ventilating shutters, &c., hinge fittings 5, 6 are secured respectively e.g. to a pivoted window sash and its fixed frame respectively, the hinge fitting 6 pivotally carrying a casing 7 which contains a rotatable, but axially immovable, nut, not shown, which is engaged by a threaded spindle 10 extending through the casing 7, the nut meshing with helical projections on a cable, not shown, which can be moved axially in a guiding conduit 8 to rotate the nut and move the spindle 10 axially to operate the sash. The casing 7 carries a housing 9 for one end of the spindle 10 which has a slot 12, the other end having a reduced portion 13 which fits into a recess in a clamp fitting 14 with an eye 15 for pivotal inclusion in the hinge 5. The upper portion of the clamp fitting 14 has spaced jaws 16 which are connected by a nut and bolt 18, the shank of which fits into a groove 19 in the reduced portion 13 of the spindle 10. In normal operation the clamping nut and bolt 18 is tightened up, however, upon installation, or at subsequent times, the screw 10 can be adjusted by loosening the bolt 18 and turning the spindle 10, e.g. by engaging the slot 12 with a screwdriver. After adjustment the nut and bolt 18 are tightened up. In a modification, Fig. 3, the casing 20, housing the toothed wheel 21 in mesh with the operating cable is mounted to rotate in the hinge fitting 23 attached to the fixed frame, the toothed wheel 21 being made fast with the corresponding end of the screwed spindle 24 which passes through a nut 25 mounted in a clamp 26 having trunnions pivotally mounted in the hinge fitting 28 attached to the moving sash. The clamp is tightened by a clamping screw 29, the front of the nut 25 being flanged and radially slotted at 30 by means of which, when the clamp is loosened, it can be turned, e.g. by a screwdriver, to make adjustments. In an alternative arrangement the toothed wheel may be operated by a shaft. Specifications 749,419 and 749,928 are referred to.
Patent GB-437696-A (GB)
Title: Improvements in or relating to overhead conveyors
IPC: B65G17/48
Filed: 1934-11-24
Abstract: 437,696. Endless - chain conveyers. PROCTER, J., 93, Halifax Road, Nelson, Lancashire. Nov. 24, 1934, No. 33812. [Class 78 (i)] Endless-chain conveying-mechanism, in which the chains 13 are connected to wheeled loadcarriers 12 travelling on an overhead runway, is adapted to pick up, transport, and re-deposit wheeled vehicles such as loaded wheel-barrows. A bar 41 suspended from the carrier 12 hangs adjacent to a second bar 22 which is provided with a lifting-cradle comprising a yoke 33 and depending load - engaging arms 34 having inwardly-directed notched lower ends 36 engaging cross-bars 38 on the barrow. A hand-lever 23, which is fulcrumed at 24 on the member 41 and pivoted to the member 22 at 25, is depressed into the dotted line position to raise the barrow from the ground. A pawl 26 engages a notch in the member 41 in this position and locks the load in raised position. The pawl is released by the hand-operated lever 29 against the action of the spring 28 when the load is to be lowered. Projections 39 on the members 36 prevent the loads from sliding relatively thereto, also a ball-bearing 19 and a toothed wheel 20 are provided, so that by engagement of the wheel with a fixed rack the load can be moved angularly. The apparatus is described in connection with the conveying of barrows loaded with green bricks from the moulding-machines, to selected points near the kilns, the deposited barrows then being wheeled into the interior of the kilns for unloading.
Patent GB-324742-A (GB)
Title: Improvements relating to automatic or semi-automatic weighing apparatus
IPC: G01G23/18
Filed: 1928-11-19
Abstract: 324,742. Fitzpatrick, H. D., (Maat'schappij tot Vervaardiging van Snijmachines Volgens van Berkel's Patent en van Andere Werktuigen). Nov. 19, 1928. Casings.-The indicator casing of an automatic or semi-automatic weighing-scale is supported on a mounting-piece that is located wholly or partly within the base casing and is supported solely from the top and/or sides of that casing, or parts formed on or projecting from the top or sides. The lever system of a weighing scale, Figs. 1 and 3, is supported in knife-edge bearings 17 on a mounting-piece 4 that is supported from the top of a base casing 1 by a long bolt 5 and two short bolts 6. The indicator casing 10 bears on four quadrantal surfaces 9 of the mounting-piece, to which it is rotatably connected by a hollow pivot 13 and annular spring members 14. In a modification, the mounting-piece is 'supported by two long bolts and a set screw that passes through the end of the casing.
Patent GB-802195-A (GB)
Title: Copolymer-oil modified butyl rubber
IPC: B60C1/00
Filed: 1956-11-06
Abstract: A vulcanizable composition comprising 50 to 99 parts by weight of a synthetic butyl rubber, 2 to 40 parts by weight of an oily copolymer of a C4-C10 conjugated diolefine and a vinyl aromatic compound, or an oily homopolymer of a C4-C10 conjugated diolefine, and 0.1 to 10 parts of a nitrogen-containing organic compound containing at least one =NH group, and optionally up to 75 parts of carbon black or clay, and up to 50 parts of zinc oxide.  Aldehyde amines or amides, polyalkylated amines or amides, guanidines, sulphur-containing guanidines, amines and amides, and sulphonamides particularly reaction products of aniline and butyraldehyde, p-toluidine and formaldehyde, triethyl-trimethylene triamine, hexamethylene tetramine, diphenyl and triphenyl guanidine, diortho tolyl guanidine, 2-mercapto - imidazoline, t - butyl - 2 - benzothiazole and N-cyclohexyl-2-benzothiazole sulphenamides may be used.  The butyl rubber, a copolymer of a major proportion of a relatively low molecular weight iso-olefine such as isobutylene and a minor proportion of a multiolefine of about 4 to 14 carbon atoms such as isoprene, butadiene, 2-methylpentadiene, dimethyl butadiene, myrcene, piperylene and allocimene may include a portion of butyl reclaim and/or partially polymerized butyl rubber, other synthetic rubbers and natural rubbers.  The polymer or copolymer oils are preferably prepared from butadiene, which may be substituted in part by isoprene, 2,3-methylbutadiene-1,3, piperylene or 2-methyl pentadiene-1,3, and styrene or methyl, dimethyl, ethyl and diethyl styrenes with a sodium, sodium hydride or potassium catalyst.  The compositions may include titanium and magnesium oxides, calcium carbonate, ferric hydroxide, chrome yellow, Prussian blue, ultramarine blue, and phthalocyanine, antioxidants, e.g. n-lauroyl p-amino phenol, phenyl b -naphthylamine, bis - (2 - hydroxy - 3 - t - butyl - 5 - methyl phenyl) methane and heptylated diphenylamine and stearic acid, and may be cured at between 250 DEG  and 450 DEG  F. with sulphur or sulphur containing agent.  The composition may be used as side walls or inner liners in tubeless tyres.
Patent GB-1234886-A (GB)
Title: Improvements in or relating to filing systems
IPC: B42F15/00
Filed: 1969-07-04
Abstract: 1,234,886. Suspension filing systems. VELOX-WERK HERBERT SCHNELLE. 4 July, 1969 [6 July, 1968], No. 33914/69. Heading B6E. A plastics suspension rail 1, Fig. 2, for a filing folder whose upper edge 2 is supported by the rail is provided at its rear face with a longitudinally extending recess 6, Fig. 4, defined by a front well 3, upper wall 4 and side walls 7, 8, the recess being filled with spaced and staggered projections 21 to 23 and 13 to 15 to retain a plastics clamping bar 24 which clamps the upper edge 2 of the suspension folder following engagement of apertures (not shown) in the edge 2 with the projections 13 to 15. The upper edge 2 may be clamped additionally between a recess 31 and a bead 30 in the rail and clamping bar, respectively. The clamping bar is snapped into a locked position in association with heads 20 on the projections 13 to 15, the heads defining a rebated recess 19 serving for location of the upper edges of apertures 26, 27 ... in the locking bar 24.
Patent GB-1194678-A (GB)
Title: D.C. Power Supplies
Inventor: SINCLAIR WALTER
IPC: H02M7/162
Filed: 1966-07-28
Abstract: 1,194,678. Rectifiers. ROTAX Ltd. 23 Oct., 1967 [28 July, 1966], No. 33928/66. Heading H2F. [Also in Division G3] An A.C.-D.C. converter comprises a first rectifier circuit 12, 20 and a second rectifier circuit 12, 13. Under no-load conditions, only the first rectifier circuit is operative, but actuation of switch 18 to connect load 19 fires thyristors 13 to increase the output power. The tappings on alternator 10 is adjusted to produce the same direct voltage at 14, 15 under no-load and onload conditions. The output is further stabilized by a retro active control circuit 21.
Patent GB-1006048-A (GB)
Title: A method of forming bored piles and gear for performing the same
IPC: E21B10/32
Filed: 1964-08-21
Abstract: 1,006,048. Forming concrete piles; boring earth &c. BADE & CO. G.m.b.H. Aug. 21, 1964 [Sept. 2, 1963], No. 34237/64. Headings E1F and E1H. A pile is formed by first boring the hole and determining the properties of the strata A-K traversed by the auger, then forming recesses in the ground surrounding the hole at selected levels without the abstraction of sail merely by its displacement and filling said recesses with concrete at the same time as the hole to provide additional bearing support for the load carried by the completed in-situ pile thus produced. In Fig. 3 the lining tube 3 has been retracted to uncover stratum H and the recess-forming tool 1 has been lowered into the hole, suspended from cable 2 to be clamped in the tube by gear 4. Plates 5 hinged at 7 are swung out by hydraulic motors 6 to form recesses in the ground and compact the same. At the end of the working stroke the squeezing plates 5 are retracted, the tube 3 is rotated an amount corresponding to the width of the plates 5 and the process repeated until a completely circular ledge has been created. Concrete is then introduced and the weight of the tool as well as the squeezing plates used for compacting the concrete.