baber/WOPTO huggingface dataset:
Patent GB-728131-A (GB)
Title: Improvements in and relating to composite tubes
Inventor: HAYDEN ROBERT LESLIE JAMES
IPC: B21C37/15
Filed: 1951-11-16
Abstract: 728,131. Metal tubes. FOSTER WHEELER, Ltd. Oct. 31, 1952 [Nov. 16, 1951 ; April 21, 1952], Nos. 26948/51 and 10041/52. Class 99 (2). [Also in Groups XIII and XXII] In a method of making composite tubes, particularly for heat exchangers, wherein two metal tubes are placed one within the other, their surfaces brought into dose contact by deformation of at least one of them, e.g. by shrinking, drawing, swaging, and their interfaces metallically bonded, the bonding metal is stored in a cavity or cavities in one or the other of the tubes, and the bonding is effected by heating the composite tube to a temperature above the melting point of the bonding metal so that the bonding metal flows into the spaces between the interfaces. The tubes are preferably heated in a non-oxidising atmosphere, e.g. hydrogen or commercial hydrogen and coal gas, the bonding metal, e.g. copper in the form of wire or strip .being attracted by capillary action into the interstices of the joint. When grooves such as helical grooves 12, Fig. 1, extend the length of the composite tube, and the amount of bonding metal is so chosen that substantially the whole of it is used for bonding, the grooves may communicate with leak detecting devices, since should a fault develop it is probable that the heat exchanger medium which is thus allowed to leak out will enter one of the grooves 12. In one example both tubes are of mild steel. In another, Figs. 6, 7, the outer tube is of cast iron sections 30, 32, and the inner tube 10 is of mild steel. The tube 10 is bent to the required shape, the U-portion enclosed in split, cast iron bends 30, and the sections 32, having longitudinal grooves 34, shrunk on with spigots 35 interengaging and copper wires dropped into the grooves. The composite tube is then heated. Alternatively the inner tube may have a helical or other groove or grooves cut into it. Specification 703,081 is referred to.
Patent GB-1179679-A (GB)
Title: A Multiple Pen
IPC: B43K27/12
Filed: 1968-06-06
Abstract: 1,179,679. Multiple retractable ball-point pens. SCHMIDT, FABRIK FUR FEINMECHANIK GEB. 6 June, 1968 [2 Aug., 1967], No. 26984/68. Heading B6P. In a multiple retractable ball-point pen the cartridges 3 are held together about the longitudinal axis of the pen by a device such as a resilient rubber band 9. This prevents the cartridges from rattling in the front barrel portion 7 of the pen. In (Fig. 2), the band 9 is replaced by a sponge rubber or plastics annulus which contacts the inside of the barrel 7 and is held there by friction or adhesive. In (Fig. 3) a metal or plastics sleeve (11) is fitted into the barrel 7 and is provided with tapered conical section (12) which resiliently holds the cartridges together.
Patent GB-452242-A (GB)
Title: Improvements in or relating to methods of preparing higher lactones containing at least 11 carbon atoms in the lactone ring
Filed: 1935-09-30
Abstract: Lactones containing at least 11 carbon atoms and at least 2 oxygen atoms in the ring are prepared by the process described in the parent Specification, using as starting materials acids of the formula OH--R--COOH, where R represents an aliphatic chain of at least 10 carbon atoms interrupted by at least one ether-like oxygen atom. According to the example, the mono-ether of diethyleneglycol-11-oxyundecane acid-1 is converted into its lactone by slowly adding it to a boiling dilute solution of benzenesulphonic acid in benzene and distilling off the benzene in vacuo.  The mono-ether of diethyleneglycol-11-oxyundecane acid-1, of formula OH(CH2)2O(CH2)2O(CH2)10COOH, is prepared by condensing monosodium diethyleneglycol with the methyl ester of o -bromundecane acid and saponifying.
Patent GB-207937-A (GB)
Title: A new or improved appliance for protecting the upper surface and rim or outside edge of the cushion rail of a billiard table
IPC: A63D15/06
Filed: 1922-10-06
Abstract: 207,937. Moorhouse, W. Oct. 6, 1922. Billiards, tables for.-An appliance for protecting the upper surface and outside edge of the cushion rail of a billiard table comprises a metal protector plate in one or more portions, the outer edge of the plate being turned over to protect the outer beading of the cushion rail and the inner longitudinal edge being turned at an angle and adapted to fit in a narrow longitudinal clothsecuring groove in the cushion rail, the protector plate having at each end a pendant tongue provided with holes by which the plate is secured to the cushion rail, and holes for receiving the projections of the pocket plate. As shown, a protector plate of brass, aluminium, &c. has a curved end n fitting the beading of the cushion rail a, and has a down-turned portion m for securing the cushion cloth l within a narrow groove in the cushion rail. The ends o of the plate are turned down and are secured by screws p. Holes q in the ends are provided for the reception of the pins on the pocket plate. The curved end n may be separate from the remainder of the protector plate.
Patent GB-882841-A (GB)
Title: Improvements in or relating to construction members for building and similar purposes
IPC: E04C3/32
Filed: 1956-09-04
Abstract: 882,841. Constructional members; walls and roofs. NOAKES, F. R. Dec. 4, 1957 [Sept. 4, 1956], No. 27023/57. Classes 20(2) and 20(4) A constructional member 20 of channel section has inturned lips 21 and three ribs 23, 24, projecting into the channel from its base, the middle ribs 23 being in the centre of the base. Two such metal members 20 may be joined by a channel section 26 of the shape illustrated in association with a channel section 34 and screws 31 with countersunk heads. Panels may be clamped between the lips 21. A right angle joint between two members each comprising a member 20 and section 26 may be effected as illustrated in Fig. 14 where two horizontal members 20 are joined by a section 26 with cut out flanges which embrace the sides of an upright member 20, the inner flange of the member 26 (or a separate channel section illustrated in Fig. 5, not shown) engaging in horizontal recesses in the vertical section 26. Screws engage threaded holes fitted with bushes to secure the joint. Right angle joints at angled planes in a roof construction are provided by slots at only one side of the member (Fig. 9, not shown, refers). An upright arising from the mitred joint of two horizontal members 20, Fig. 11, comprises four members 59 bolted to two members 56 which are bolted over a square bracket 54 bolted to the joint. Panels may be mounted in the ribs 23, 24 by insertion into glued cushioning fillets (Figs. 12, & 15, not shown, refer). The member, which may be made of plastics, can be used for wall, floor ceiling or roof frames.
Patent GB-870471-A (GB)
Title: Cabinet
Inventor: ABRAHAMS JOSEPH SAMUEL
IPC: A47B47/04
Filed: 1958-08-22
Abstract: 870,471. Cabinets. ARTHUR PRODUCTIONS (CLYDEBANK) Ltd. Aug. 18, 1959 [Aug. 22, 1958], No. 27023/58. Class 52(1). A cabinet for a sink unit or the like has a front frame 1 with doors 2, side frames 3 hinged to frame 1, or detachably connected thereto, a skeleton frame back 4 removably connected to the side panels and a bottom 5 removably mounted on fillets (not shown) on the sides 3 or front 1 and back 4. Runners 6 to support drawers have tongues engaging slots 9 in frames 1, 4.
Patent GB-1095098-A (GB)
Title: Facsimile recording apparatus
IPC: H04N1/032
Filed: 1966-06-16
Abstract: 1,095,098. Copying by scanning. XEROX CORPORATION. June 16, 1966 [June 24, 1965], No. 27035/66. Heading H4F. In a facsimile recording apparatus utilizing an ink recording pen as described in Specification 1,076,647 the electromechanical transducer 31, Fig. 1, includes an elastic element 39 connected to the rod 14, for moving the rod in capillary tube 12 to deposit an ink dot on recording surface ] 7, and an electrical compensating circuit network 41 connected to the input of the transducer to control the movement of the elastic element. The transducer 31 which has a frequency characteristic as shown by curve A, Fig. 4, comprises a pair of polepieces 32 and 33 joined by means of permanent magnets 35 and 36 and magnetic core 37. Secured to core 37 and extending through air gap 34 is an elastic read 39, e.g. a steel reed, which is attached to rod 14. The reed vibrates in response to the pulsating current fed into operating coil 40 from source 30. The delay in starting and stopping due to the inertial forces and elastic moment of the elastic reed is overcome so that single dot printed may be achieved with high resolution by means of compensating network 41 comprising a band reject filter, Fig. 7, (not shown), having a frequency characteristic as shown by curve B, Fig. 4. The filter provides added power assistance at the beginning of a pulse and opposing power at the end of a pulse thus compensating for the lack of reed response. The system produces a flat operative response of rod 14 indicated by curve C of Fig. 4 to achieve in effect a mechanical Q of substantially unity.
Patent GB-1500586-A (GB)
Title: Magenta-forming colour couplers and silver halide materials and developers containing them
IPC: G03C7/38
Filed: 1975-06-27
Abstract: 1500586 Substituted pyrazolones and pyrazolobenzimidazoles FUJI PHOTO FILM CO Ltd 27 June 1975 [27 June 1974] 27400/75 Heading C2C [Also in Division G2] A 2-equivalent magenta coupler for use in photographic silver halide processes has the formula where A represents a residue of a magenta dyeforming coupler derived by removal of H in the coupling position; Z is H, alkyl, aryl orheterooyclic which groups may be substituted; B is -D-Y or D is O, S or -NR-; R is H, alkyl or aryl which groups may be substituted; Y is alkyl, cycloalkyl, alkenyl, cycloalkenyl, aryl or heterocyclic which groups may be substituted; Q completes an optionally fused non-metallic 5- or 6-membered N-containing heterocyclic group; n is 1 or 2; and when n is 2, B can be -Y. A may be derived from a 5-oxo-2-pyrazoline or 3H - pyrazolo[2,3-a]benzimidazole nucleus. The coupler may be dimeric. These couplers may be prepared from a magenta coupler having an amino group at the coupling position advantageously as its strong acid or stannic chloride salt and a carbonic or oxalic acid halide derivative.
Patent GB-265273-A (GB)
Title: Improvements in and relating to photographic cameras
IPC: G03B17/44
Filed: 1925-10-31
Abstract: 265,273. Kambara, Y., and Kambara, K. Oct. 31, 1925. No Patent granted (Sealing fee not paid). Focusing-devices. - In a camera having a swinging back Y, Fig. 1, and a swinging focusing- screen P which can be locked together for simultaneous movement or unconnected for enabling the focusing-screen to swing down against the back, both focusing-screen and back swing on a common axis. The focusing-screen frame P1, Figs. 5, 8 and 9, is mounted by journals P2 in bearings Z of the camera frame N. The camera back Y is fitted with a focal plane shutter F within a housing F1 and with a removable cover V for loading a roll film E or a filmpack, and is mounted by axial projections K9 on the focusing-screen frame P1. The shutter is wound by a handle H2 connected with the shutter by a rod extending through the journal P2 and projection K9 at that side of the camera. A coiled spring J1 is mounted between one of the journals P2 and a winding knob HI, and on turning the knob HI the spring is tensioned and held tensioned by a spring pin K8 which engages one of a series of shaped notches U1 on the flange H3 of the knob HI, according to the tension put on the spring. The focusing- screen will rise within the camera, if the latter is extended, until a spring pin K7 on the inner periphery of the shutter housing F1 engages a lateral recess K2 on the focusing-screen frame P1, locking the focusing-screen frame and back together at an angle of about 75‹. For focusing, the back is released from a spring retaining catch by pressing a knob K3 and the back raised by hand until a thick spring pin E10, Figs. 7 and 14, engages a notch U on the periphery of the shutter housing F1. The back is connected to the camera frame N by bellows D provided with an aperture M for viewing the focusing-screen. To effect an exposure a knob H is pressed thereby, through a conical wedge K5, retracting the pin K10 by contact with a branch pin K4; the back and focusing-screen swing together under the influence of the sping J1 until, when the back comes against the camera frame N and is locked by the spring catch operated by the knob K3, an angle-piece K in one with the knob H and wedge K5 trips a pin H4 of the shutter mechanism. The Knob H is rotatable so that the angle-piece K will not trip the shutter on the first actuation, and it can then be turned back and pressed a second time for a time exposure. Ultimately and to close the camera, the focusing-screen and swinging back can be disconnected by sliding a knob K1 to disconnect the pin K7 from the notch U2; and the spring J1 can be untensioned by pressing a knob K2 thereby moving a conical wedge K6 to retract the pin K8 from the notch U1.
Patent GB-956279-A (GB)
Title: Improvements in and relating to walled pallet structures and couplings for reinforcing the top corners thereof
IPC: B65D19/10
Filed: 1960-08-08
Abstract: 956,279. Stud and socket fastenings. A. INGVARTSEN. Aug. 8, 1960 [Aug. 18, 1959], No. 27455/60. Heading E2B. [Also in Division B8] Adjacent side walls 6, 7 of a pallet, and their associated end posts 4, 5, are secured together by a horizontal plate having the form shown in elevation in Fig. 1 and in bottom plan view in Fig. 2. The plate has pins 2, 3 engaging the tops of the posts, and, in the form illustrated, also has downwardly extending flanges 8, 9 engaging adjacent portions of the side walls. Upwardly extending flanges 11, 12 may serve to locate the pallet above in a stack. Each plate 1 may be held captive to one of its associated walls by a chain 10.
Patent GB-501553-A (GB)
Title: Improvements in gear grinding machines
IPC: B23F5/08
Filed: 1937-10-11
Abstract: 501,553. Gear-cutting. REINECKER AKT.-GES., J. E. Oct. 11, 1937, No. 27628. Convention date, Oct. 12, 1936. [Class 83 (iii)] In a machine for generating gears a pair of opposed grinding wheels b, b<2> operate on tooth flanks of a gear c by their conical surfaces a, the axes d of the wheels being inclined to the rolling plane e at an angle n which is less than, preferably half, the pressure angle p of the gear. Preferably the axes d are Sxed. Any form of rolling generating movement may be employed.
Patent GB-1293858-A (GB)
Title: Magnetic garment supporting device
Inventor: DAVISON PATRICK T
IPC: D06F55/00
Filed: 1970-06-08
Abstract: 1293858 Magnetic fasteners HOZ-PIN CORP 8 June 1970 27701/70 Heading E2A A magnetic garment supporting device for use in drying light-weight articles of clothing comprises a laminated flexible strap of two layers, a water-proof pocket formed in each end portion between the layers, a magnet contained in one pocket and magnetically attractable means in the other pocket. The strap 4 with enlarged end portions 5, 6 comprises an outer cover 9 and an inner liner 10 made of plastics material and heat sealed together with a magnet 7 contained between the layers of one end portion 6 and a ferrous plug 8 at the other end portion 5. The strap is bendable about score 11 to suspend it from a rod 2 the end portions being magnetically attracted to clamp an article therebetween. The outer surface of the liner may be embossed.
Patent GB-798120-A (GB)
Title: Improvements in and relating to burners for vaporised liquid fuels
Inventor: RICHARDS GEORGE WILLIAM FRANCI
IPC: F23D11/44
Filed: 1954-09-24
Abstract: 798,120. Liquid fuel burners. LION STAMPING CO., Ltd. Sent. 20, 1955 [Segt. 24, 1954], No. 27706/54. Class 75(1) In a vaporized fuel burner having a combustion chamber 10 formed between two perforated cylinders 11, 12 arranged coaxially one within the other and surrounded by a shroud 14 to form with the other perforated shell 12 a space 13 through which air passes to the combustion space 10 through the perforated wall 12, the space 13 is in communication with a combustion space 16 above the perforated shell 12 and is closed at the bottom, the air supply to the space 13 being effected through holes 23 or 62 at the lower end of the space 13 formed or provided with baffles 26 or 66 to direct the incoming air away from the perforated shell 12. The holes 23 may be formed in the plate 22 closing the bottom of the space 13 by making slits parallel to the periphery of the shroud 14 and then pressing the material on each side of the slit in opposite directions to form baffles 24, 26. A further shroud 19 surrounds the shroud 14 to form a space 25 through which an extra supply of combustion air is fed to the burner. In a modification, Fig. 3, the air supply holes 62 provided in the plate 22 are baffled by a ring 64 provided with an inclined flange 66. The total area of the air supply holes 23 or 62 does not exceed the area of the perforations in the outer shell 12 by more than 5 per cent. The cross-sectional area of the combustion chamber 10 increases progressively upwards this being usually effected by flaring the outer shell 12 outwardly.
Patent GB-931553-A (GB)
Title: Zirconium oxide and process of making the same
IPC: C09K3/14
Filed: 1959-08-13
Abstract: Cubic zirconium oxide which is stable at room temperature is prepared by heating zirconium carbonate precipitated from solutions of hydroxide-free zirconium sulphate, at 1050 DEG  to 1200 DEG C., or by heating zirconium hydrate or zirconium hydrous carbonate at 750 DEG C. to 1200 DEG C. until zirconium oxide having the X-ray diffraction pattern of cubic zirconium oxide is obtained. When heated at 1200 DEG C. or above for two hours, the cubic zirconium oxide becomes unstable and is converted to monoclinic zirconium oxide.  The zirconium compound may be mixed with silica, which is incorporated in the crystals of stable, cubic zirconium oxide obtained as above.  The stable, cubic zirconium oxide may be mixed with water to form a glass polishing composition.  The composition also may contain silica, cerium oxide and a stabilizing additive e.g. calcium oxide. Specification 931,554 is referred to.
Patent GB-299181-A (GB)
Title: Improvements in or relating to railway switch mechanism
IPC: B61L5/00
Filed: 1927-10-19
Abstract: 299,181. Williams, L. Wynn-. Oct. 19, 1927. Point-tongues, mounting of.-The bracket 1, with a resiliently mounted roller 9 engaging a slide chair 6 as in Specification 209,924, supports the switch tongue by arms 2, 3 taking a bearing under the tongue, one on each side of the chair. The roller is carried by a spindle mounted in a central pocket 7 having deep vertical walls 10.
Patent GB-748624-A (GB)
Title: Ladies' wrap
Inventor: SILBIGER ILSE
IPC: A41D23/00
Filed: 1953-10-08
Abstract: 748,624. Ladies' wraps. RODNEY & CO., Ltd., C. July 22, 1954 [Oct. 8, 1953], No. 27754/53. Class 141. A lady's wrap made of extensible fabric is constructed in the form of an open bag 1 so that, when the arms have been inserted through the armholes 13 and the wrap disposed across the wearer's back, opposite portions of the open edge of the bag can lie pulled round to the front and fastened, e.g. by means of buttons 8 and buttonholes 7. The wrap is preferably made from a single length of knitted fabric, the ends of which are hem-seamed together at 2. A hem 3 is stitched down along one edge, the opposite edge being hem seamed at 12 with the portions 13 adjacent the folds 5, 6 left free to form armholes.
Patent GB-1100490-A (GB)
Title: Drive mechanism for actuating a movable machine member
IPC: B23Q5/40
Filed: 1966-06-21
Abstract: 1,100,490. Screw-and-nut gearing. KEARNEY & TRECKER CORPORATION. 21 June, 1966 [9 Aug., 1965], No. 27789/66. Heading F2Q. [Also in Division B3] A screw-and-nut feed mechanism for the tool carrying slide 10 of a machine tool is housed in a dustproof enclosure 25, which may be filled with oil, in the machine bed. The screw 60, rotatably supported in bearings in plates 24, 36 of the machine bed, is driven by an hydraulic motor 61 through bevel gears 62, 63 and the nut 55 is rigidly connected to the slide 10 by a beam 50 and tubular members 14, 15 which pass through bearings 26, 27 in the plate 24 having scraper rings 28, 29 to prevent ingress of dirt. Fixed rods 34, 35 guide the members 14, 15 and form with the latter hydraulic rams supplied from a pressure line 77 to counterbalance the weight of the slide 10.
Patent GB-189105-A (GB)
Title: Improvements in or relating to valves for fluid conduits
IPC: E02B13/02
Filed: 1922-10-16
Abstract: 189,105. Huguenin, A. Nov. 16, 1921, [Convention date]. Sluice gates; closure members, hinged. - A valve for large fluid conduits comprises a pivoted gate the pivots of which carry toothed pinions which roll on vertical racks to move the gate out of the fluid path. The central portion 2 of the gate is provided with two wings 3, 4, and carries toothed pinions 5 at its ends. Each pinion cooperates with a rack 6 and the valve is lifted by means of fluid pressure cylinders 9. The valve is closed in the position shown, and its proportions are such that the centre of gravity of the part 2 coincides with the centre of pressure of the gate. When the valve is fully open, it occupies a position in a recess above the fluid conduit, shown in dotted lines.
Patent GB-1099333-A (GB)
Title: Tear-open package for cheese portions and other sector shaped articles
IPC: B65D85/76
Filed: 1966-06-23
Abstract: 1,099,333. Cheese &c. sector package. GERBERK€SE A.G. June 23, 1966 [July 23, 1965], No. 28118/66. Heading B8C. A wrapper for cheese sectors has tear strips 10, 11 secured to it and extending along the straight edges of the base panel, the strips intersecting and continuing beyond the point of intersection to form gripping portions 10a, 11a. They may also extend up the rear wall 5a and into the margin which is folded over the closure panel (not shown).
Patent GB-841457-A (GB)
Title: Improvements in the preparation of carbon tetrafluoride
IPC: C07C17/007
Filed: 1958-09-02
Abstract: Carbon tetrafluoride is prepared by bringing molten sodium or potassium fluoride at a temperature of at least 1200 DEG  C. but below the boiling point, into intimate contact with carbon and chlorine, thereby forming alkali metal chloride and CF4, the carbon being in amount of at least 0.25 g. atoms per mol. of alkali metal fluoride and the molar ratio of total chlorine to alkali metal fluoride being between 0.3 : 1 and 0.5 : 1, and maintaining the reactants in intimate contact until the molar ratio of alkali metal chloride formed to unreacted alkali metal fluoride in the reaction mixture is at least 3 : 2.  The reaction may be effected by passing a stream of chlorine together with molten alkali metal fluoride into intimate contact with the carbon, or by passing chlorine into a mixture of carbon and molten fluoride.  The alkali metal fluoride may be formed in situ by using sodium or potassium fluosilicate.
Patent GB-873890-A (GB)
Title: Improvements in or relating to ammonia stills
IPC: B01D3/14
Filed: 1959-08-18
Abstract: <PICT:0873890/III/1> An ammonia still comprises a column A having a plurality of bubble cap trays, an inlet L and outlet N for ammonia liquor feed and a mixture of steam and ammonia vapour respectively, a steam inlet O and an effluent liquor outlet M, the liquor fed to the inlet L being passed first through a heat exchanger E from inlet F to outlet G and preheated by vapour entering the heat exchanger at Q. Part of the vapour leaving the heat exchanger at R by line S is returned by a line T to a lower compartment of the column, vapour recirculation being achieved by means of a steam injector U.  A U-bend Y provides a liquid seal between the outlet W for condensate formed in the heat exchanger E and its point of return to an intermediate position in the column A.