baber/WOPTO huggingface dataset:
Patent GB-739448-A (GB)
Title: Rotary thread take-up for sewing machines
IPC: D05B51/00
Filed: 1954-02-22
Abstract: 739,448. Sewing-machines. SINGER MANUFACTURING CO. Feb. 22, 1954 [March 23, 1953], No. 5087/54. Class 112. A rotary take-up in a sewing-machine is surrounded by guard means presenting two parallel thread-accommodating slots each of which is formed with a flared thread-receiving mouth; and a pair of thread-guides, fixed with respect to the guard means, have delivery extremities each of which is open to the plane of one of the thread-accommodating slots and is disposed beneath one of the flared mouths. The take-up, which is in essence claimed in Specification 704,738, comprises two parallel plate portions 40, 41 which are joined by a bridge portion 42 and have a ring portion 43 interposed therebetween. Plate 40 is separated by a spacer 67 from a disc 63 and is fastened to the latter by screws 66. Disc 63 is secured by an L-shaped member 61, 62 to a crank pin 31, the latter serving to connect the main rotary shaft 32, by means of a link 30, to the needle bar 23. The guard means comprises a first ring 82 and a second ring 85, the space between ring 82 and a plate 21 closing the head of the machine defining a slot 101 co-planar with the spacer 67, and the space between the guard rings defining a slot 102 co-planar with the space between plate 41 and ring 43. The guard rings are secured to plate 21 by a 'screw 81 which passes through spacers 84, 86 disposed in the respective slots 101, 102, and a bridge piece 87 extends from ring 85 to abut plate 21. The bridge piece is formed with an inclined slot 108, the ends of which lie in the planes of the respective slots 101, 102. A ring-like end cover 90 is attached to ring 85 by a screw 91, and is formed with an arched rib 92 carrying spaced wire rings 94. The thread passes through a first guide 105 in the form of a selfthreading notch in plate 21, and thence upwardly into slot 101 through a mouth 'formed by outwardly flaring portions 106, 107 of plate 21 and ring 82 respectively. The thread is then directed into the take-up by a finger 50 on plate 40, and after passing through the space between the latter and ring 43, enters slot 108 which constitutes a second thread guide. On leaving the latter the thread rises to enter slot 102 through a mouth provided by outwardly flaring portions of the guide rings. After passing through the space between ring 43 and plate.41 the thread is directed downwardly into a notch 118 in the plate 21, protected by a replaceable finger 119, and then passes through a thread guide 120, carried by the needle clamp 28, to the eye of the needle 29.
Patent GB-832302-A (GB)
Title: Multi-tube structures for example for containers and method of making same
IPC: B31B7/00
Filed: 1958-02-17
Abstract: 832,302. Non-metallic tubes. SHELLY, R. S. Feb. 17, 1958 [Feb. 25, 1957], No. 5101/58. Class 99(2). A multiple-tube structure of paperboard material comprises a rigid, inner tube 10 and a rigid, outer tube 11 concentric with but having greater cross-sectional area than the tube 10, the tubes having mutually different configurations such that they intersect and are contiguous along areas extending longitudinally therewith. A rigid-set adhesive coating covers substantially the entire wall surface of at least one of those tube walls which have mutually contiguous areas, and rigily bonds the tubes together at and along the contiguous areas. As shown, a single sheet 17 of material is passed under a series of circular blades 19 which form in one face of the sheet spaced and parallel, longitudinal, V-shaped grooves 18 which constitute fold lines 12 about which the sheet is folded to form the tube 11, the lateral edges of the sheet meeting in abutting relationship along a junction line 13. A coating of glue is applied by a roller 20 to the undersurface of the sheet and an outer lamination 16 of kraft paper wide enough to provide an overlap 16a is secured to the sheet. Prior to folding, the grooved and laminated sheet has applied to the grooved face thereof a rigid-setting adhesive, the adhesive applying roller being provided with circumferential grooves corresponding in placement and spacing with the grooves 18 whereby a greater quantity of adhesive is applied over and along the grooves than along the panel sections of the sheet. When the sheet is folded about the tube 10, the adhesive within the grooves 18 is caused to exude at the corners of the tube 11 and result in columns 25 of adhesive to reinforce the corners 11b of the tube 11 ; also, the adhesive exudes laterally of the tangential areas 15 to provide structural reinforcements 26.
Patent GB-839152-A (GB)
Title: Improvements in or relating to car couplers
Inventor: METZGER WILLIAM JOSEPH
IPC: B61G3/06
Filed: 1958-02-17
Abstract: 839,152. Railway vehicle couplings. NATIONAL MALLEABLE & STEEL CASTINGS CO. Feb. 17, 1958, No. 5138/58. Class 103(5) A bottom operated Janney type coupler comprises anti-creep gear in which an abutment 40 is engaged when the coupler is subjected to a combined end and vertical shock with a surface 38a of a shoulder 38 on a locklifter link 34, the link 34 having a trunnion 44 engaging in a slot 46 in a lock leg 30, and the leg 30 having a clearance between the walls 42 and 56 of the coupler head. When a forward end and vertical shock is given to the coupler the leg is moved against the wall 42 and the trunnion 44 moved upwardly to the upper end of the slot 46, in which position the shoulder 38 abuts the lug 40. Intentional uncoupling by rotation of the rotor lever 36 moves the trunnion 44 upwardly to the upper end of the slot 46, and then clearance between the shoulder 38 and the lug 40 is obtained by further rotation of the lever 36 which forces the leg rearwardly and upwardly until it contacts the rear wall 56. The surface 38a slopes downwardly from a horizontal plane passing through the axis of the trunnion 44, and downwardly and forwardly when the lock is in locking position and link and lever in reposed position. When the leg 30 is in engagement with the forward wall of the head, and the top surface of the shoulder 38 is in contact with the abutment, the shoulder is only partly withdrawn from beneath the abutment. The lever 34 is counterweighted on its rear edge. Specification 349,373 is referred to.
Patent GB-281512-A (GB)
Title: Improvements in and connected with the spring suspension of vehicles
IPC: B60G11/36
Filed: 1927-02-23
Abstract: 281,512. Martin, W. r. Feb. 23, 1927. Springs, arrangement of.-An arm d clamped to the axle a encloses a rod e pivoted by a ball and socket to the frame c. The arm is kept in contact with a stiff spring m by a lighter spring k.
Patent GB-348653-A (GB)
Title: Improvements in and relating to axes, picks and like hand tools
IPC: B25G3/02
Filed: 1930-02-15
Abstract: 348,653. Securing axe &c. heads. FOWLIE, W., 29, City Road, London.- (Wright, W. W. ; c/o Meikles, Umtali, Southern Rhodesia.) Feb. 15, 1930, No. 5140. [Class 61 (i).] Multiple-tool handles; protectors; fixing by selfgrip sockets and tangs with wedge expanding-devices.- In the fixing of tools and implements such as axes, pick heads, &c., to their hafts a metal sleeve surrounding the end of the haft has transverse slots through which passes a tapered tang on the tool, the arrangement being such that blows on the tool cause the sleeve to grip more tightly on the haft. The axe a, Fig. 1, has a taper tang a<1> passing through a slot in the haft b and through slots in the taper sleeve c, which is forced more tightly on the taper haft by the blows on the tool in use. In the modification, Fig. 3, the end of the haft b is expanded within the parallel sleeve c by means of a wedge d slotted to engage the taper tool tang a<1>. In another modification, Fig. 7, the slots e<1> in the sleeve e are beyond the end of the taper haft band a filling strip f is provided between sleeve and haft; protective lips e<3> are formed on the sleeve. Fig. 10 shows a composite tool comprising a hammer g and axe a, and a nail puller h clamped between the taper haft b and sleeve e. In a combined pick and railway beater, Fig. 12, the tangs j are notched at j<1> to engage projections e<5> on the head e4 of the sleeve e. In a further modification, Fig. 15, the sleeve o is formed with a hammer head o<1> ; the tang a<1> of the axe or adze a forces the wedge d down between haft and sleeve and retains in position a nail drawer p.
Patent GB-846147-A (GB)
Title: Solutions of carboxylic acid esters of cellulose
IPC: C08J3/09
Filed: 1957-02-15
Abstract: A carboxylic acid ester of cellulose containing less than 0,5 free hydroxyl groups per anhydroglucose unit is dissolved in a mixture of methylene chloride and an aliphatic alcohol having 1-4 carbon atoms, the solution containing also 0,3-0,8% by weight of water, based on the weight of the solution reckoned as anhydrous.  The concentration of the cellulose ester may be at least 15% by weight and the ester may be a cellulose triacetate (defined as a cellulose acetate having an acetyl value of at least 59%, preferably above 59,5%, expressed as acetic acid).  The solvent mixture may contain 80-99% by weight of methylene chloride (preferably at least 90%) and 0,3-0,4% of water as the above basis, and the aliphatic alcohol may be methanol.  The solutions have a reduced tendency to corrode ferrous metal surfaces, and may be used as spinning solutions.  Specifications 779,220 and 785,806 also are referred to.
Patent GB-303679-A (GB)
Title: Improvements in pottery decoration
IPC: C04B41/50
Filed: 1928-02-20
Abstract: 303,679. Lovatt & Lovatt, Ltd., and Lovatt, A. E. Feb. 20, 1928. Glazing.-Relates to the method of pottery decoration in which coloring matter, such as broken glass or coloured glaze, is deposited on the surface of the ware and is made to adhere by glaze firing. According to the invention, the colouring matter, crushed to particles of the required size, is subjected to an initial firing and is subsequently mixed with the raw or fritted glaze, and the mixture is applied to the ware and fired. By first firing the coloured particles they do not dissolve in, and become indistinguishable from, the glaze but remain in suspension.
Patent GB-263346-A (GB)
Title: Improvements in or relating to belts utilised for the transmission of power
IPC: F16G5/18
Filed: 1926-02-24
Abstract: 263,346. Webb, T. H. Feb. 24, 1926. Belts.-In linked V-belts of the type in which friction pads are secured to the side faces of the alternate links of a continuous chain core, the said alternate links are formed as two metal plates b each pressed out to form bearing-recesses b<1>, in which engage corresponding pivot-pin projections a<2> pressed out from plates a forming the intermediate links. The plates a are secured together by eyelets a' or rivets, and the plates b are formed with perforated spacing-bosses b<2> through which pass the screws c securing the leather pads d, which may be recessed or perforated to receive the parts b<1>. The plates b may be secured together by bolts or screws and the pads d be secured in any desired manner. In a modification, the leather pads are replaced by impregnated layers of canvas, to which may be vulcanized internally and externally layers of rubber. Specification 175,203 is referred to.
Patent GB-902341-A (GB)
Title: A method of insulating electrical components
Inventor: JORCHEL ADELHEID
IPC: H01B3/30
Filed: 1961-02-13
Abstract: 902,341. Transformers. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. Feb. 13, 1961, No. 5279/61. Class 38 (2). A method of insulating electrical components such as windings comprises surrounding the component with silica sand filling material which has been prepared with a butyl naphthalene sulphonate of sodium wetting agent to assist complete penetration of a low-pressure cast resin which may be shellac, cellulose acetate resin or methyl methacrylate resin.
Patent GB-770272-A (GB)
Title: Improvements in and relating to refrigerating systems
IPC: F25B5/04
Filed: 1953-02-25
Abstract: 770,272. Refrigerating. GENERAL ELECTRIC CO. Feb. 25, 1953 [Feb. 20, 1952], No. 5285/53. Class 29 [Also in Group XXIX] In a refrigerating system having a high temperature evaporator 3 discharging into a chamber 10 of a header 6 from which chamber refrigerant flows through a passage 30, 18 and pressure reducing valve 9 to a chamber 11 to which is connected a flooded re-circulating low temperature evaporator 4, the discharge of passage 18 is in alignment with the inlet end 13 of evaporator 4 so that the supply of liquid refrigerant enhances the circulation in the lowtemperature evaporator.. The low temperature evaporator 4 comprises a tube depending from the header 6 and having its inlet end 13 opening beneath the normal level 14 of liquid refrigerant in the low pressure chamber 11 of the header, and its outlet end 15 opening into the vapour space of the header. The pressure of the refrigerant in the high temperature evaporator 3 acts on a slide valve element 19 against a pivoted weight 20 to allow refrigerant to pass by passages 30, 18 to the low pressure chamber 11 of the header, the outlet of the passage 18 being directed towards the inlet end 13 of the low temperature evaporator 4 to aid the circulation. The passage 30 is downwardly inclined to reduce the liquid level maintained in the high pressure chamber 10 of the header. To ensure a supply of liquid refrigerant to the end 13 of the evaporator 4 a pipe 25 having one end disposed below the level of the refrigerant is connected to a downwardly inclined orifice 29 in the discharge passage 18. In the assembly of the structure the conduits 3, 13, 15 are brazed to the header, the corrosive flux washed away, the valve 9 then pressed into the header and locked by rolling-in a groove 32 the open end of the header pinched together at 33a and welded by a non-flux method. To adjust the effective pressure of weight 20 and thus the differential pressure the header is rotated about its longitudinal axis to move the weight out of the vertical plane, the pipe connections having sufficient freedom to allow this adjustment. A magnetic element may be fitted in a recess in the weight 20 and the pressure difference varied by a magnetic yoke outside the header, which is of non-magnetic material. Or the weight may include an element of Curie metal so that when the temperature reaches predetermined low value the element becomes magnetic and is attracted towards an exterior magnet to allow the valve to open. Specification 715,600 [Group XXIX] is referred to
Patent GB-303295-A (GB)
Title: Improvements in steam boilers
IPC: F22B37/22
Filed: 1928-02-21
Abstract: 303,295. Stirling Boiler Co., Ltd., (Babcock & Wilcox Co.). Feb. 21, 1928. Drawings to Specification, Water-tube boilers.-In a boiler having drums connected by banks of curved tubes, each tube of a bank is reduced in external diameter at one or both ends, the reduced parts being of such a length that one end of a tube may be passed far enough into the tube opening in one of the drums to permit the insertion of the other end of the tube in the tube opening in the other drum.
Patent GB-248913-A (GB)
Title: Locking arrangements for hinged or movable covers or doors used on scutchers, beaters, feeders, openers and such like textile machines
IPC: D01G31/00
Filed: 1925-02-28
Abstract: 248,913. Platt Bros. & Co., Ltd., and Nield, H. Feb. 28, 1925. Guards, controlling.-The covers or doors of scutchers, beaters, lattice feeders, exhaust openers, roving waste openers, and other textile machines are locked by a sliding bolt which, to be withdrawn, must traverse a hole in a light auxiliary disc connected to the driving-shaft by a one-way clutch. The hinged beater cover b of a scutcher is locked by a bolt a provided with a knob a<1> working in a notched slot a<2>. A light disc c, connected to a bush e fast on the shaft d by a ball, roller, or other one-way clutch c<2>, and held thereon by a collar f, is provided with a hole c<x>, which, by manually rotating the disc c. can be aligned with the bolt a when the shaft d is stationary. On unlocking the cover, the bolt locks the disc and shaft against forward rotation, but the beater can nevertheless turn in the reverse direction. As shown, the bolt a serves also to lock the door giving access to the cages.
Patent GB-986555-A (GB)
Title: Electrical devices including magneto resistive elements
IPC: H03K17/84
Filed: 1963-02-12
Abstract: 986,555. Binary adders. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 12, 1963 [Feb. 28,1962],No. 5645/63. Heading G4A. [Also in Divisions H1 and H3] An electrical device which includes a magnetoresistive element is also provided with means for establishing a directional current flow through the element, means for applying two mutually inclined magnetic fields to the element and means for detecting resistance changes between two spaced positions on the element. In one embodiment (Fig. 3) a square ferromagnetic thin film 33, of cobalt, iron, nickel or alloys thereof on a glass substrate, is connected by indium soldered leads to a current generator 43 and has output voltage tap conductors 47, 49 applied at points 51, 53 spaced apart in the current flow direction. Resistance changes across the film 33 are brought about by energization of one or more diagonal copper drive lines 55 and 57 from current pulse sources 59 and 61 respectively which provide a resultant magnetic field for any required duration in one of three directions parallel to, orthogonal to or at 45 degrees to the current flow direction. By alteration of the polarity of the c and d terminals either of the three directions of resultant magnetic field may be attained. The circuit makes use of this property to provide an "adder" for sums of 0,1 and 2 corresponding to the three magnetic field positions. A further embodiment (Fig. 5 not shown) utilizes two series connected films with series coupled drive lines which acts as an input signal coincidence detector, in which the appearance of an output signal corresponds and identifies the one of two input signals which is applied to the device first, or the simultaneous application of the two signals.
Patent GB-654417-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J31/28
Filed: 1948-02-25
Abstract: 654,417. Cathode-ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 25, 1948, No. 5670. Convention date, Sept. 5, 1946. [Class 39 (i)] A fine mesh screen, highly transparent to electrons, is mounted parallel and closelyadjacent to the target of a C.P.S. pick-up tube and is made positive so that electrons in the scanning beam are not substantially decelerated until they have passed the screen and photoelectrons liberated from the target do not return thereto. The grid repels ions produced by electronic collisions. The target assembly in the tube 1 comprises a thin transparent sheet 8, e.g. of mica, with a photo-sensitive mosaic 9 on the gun side and a thin transparent coating of metal 10 on the other side. Focusing and scanning deflection are by the electromagnetic coils 11, 12 but the deflection may be electrostatic. Electrons not landing on the target return to electrode 13 and signals may be taken from conductors attached either to electrode 13 or to the signal plate 10. The wall coating anode 6 extends from the first anode 2 to a point closely adjacent the target. The screen 17 mounted close to the target yields electric lines of force parallel to the axis of the tube. Its spacing from the target is about four tenths of an inch and its mesh 230 wires per inch with 46 per cent open area.
Patent GB-428883-A (GB)
Title: Improvements in or relating to inner tubes for pneumatic tyres and methods of makingthe same
IPC: B29D23/24
Filed: 1934-02-21
Abstract: 428,883. Tyre valves. FIRESTONE TYRE AND RUBBER CO., Ltd., Great West Road, Brentford, Middlesex.-(Assignees of Becker, G. W.) Feb. 21, 1934, No. 5741. Convention date, Oct. 11, 1933. [Class 135] [See also Group XXXIV] A rubber valve-stem 10 for pneumatic tyres is formed with a flange 11 which is vulcanized between inner and outer walls of the air-tube 16. As shown, the stem is formed with a curved fillet 13 merging into a shoulder 12 over which are assembled thin rubber patches 18, 19, 20 when the flange 11 has been applied to the unvulcanized tube. The patches are of graded sizes with stepped feather edges to afford a flush surface, as shown in Fig. 7, when the completed tube is vulcanized. Grooves 14 may be formed in the fillet 13 to permit escape of air trapped between the air-tube and the wheel-rim.
Patent GB-452052-A (GB)
Title: Improvements in electrical power systems for driving auxiliary apparatus in boiler houses and the like
IPC: H02P5/74
Filed: 1935-02-22
Abstract: 452,052. Boiler plant. EASTWOOD, F. A., 46A, Poplar Grove, Brooklands, Cheshire, and ASSOCIATED ELECTRICAL INDUSTRIES, Ltd., Crown House, Aldwych, London. Feb. 22, 1935, No. 5803. [Class 122 (iii)] [See also Group XXXV] In boiler plant comprising a number of boilers of which some are run under steady service load and others used under variable load for regulating total output, the electrical power systems for driving auxiliary apparatus includes two sets of bus-bars energized at constant and variable frequency to which the units may be coupled according to whether steady speeds for units associated with service boilers or widely varying speeds for units associated with regulating boilers are required respectively. Two sets of bus-bars are provided, a main set 4 which is connected directly or through a transformer 5 with an alternating current supply 6 and a regulating-set 7 energized from an alternating current generator 8 driven by a motor 9 from the supply 6. The motor 9 has switching means 9a providing for different operating speeds and the generator 8 has switches 8a providing for different frequencies. The motors driving the auxiliary apparatus of the boilers 1, 2, 3 are provided with speedchanging means 10, 11, 12 and switches 13, 14, 15 permit of connection to either bus-bar system. With the boilers 1, 3 operating at service load, the motors of the associated equipment are coupled to the constant frequency main bus-bars 4, variation in speed being obtained by the pole-changing controls 10, 12. With the boiler 2 operating as a regulating supply, the motors therewith are coupled to the variable-frequency bus-bars 7 and a wider speed range is thus provided for. In a modification, the generator 8 is driven by an alternating current commutator motor with a shunt characteristic and shifting brushes.
Patent GB-1493866-A (GB)
Title: Process and equipment for producing by electrodialysis crystalline citric acid from solutions of alkali metal and alkaline earth metal citrates
IPC: B01D9/02
Filed: 1975-02-12
Abstract: 1493866 Electrodialytic production of citric acid COMPAGNIA TECNICA INDUSTRIE PETROLI SpA and LIQUICHIMICA SpA 12 Feb 1975 [13 Feb 1974] 5975/75 Heading C7B Citric acid is produced from an alkali or alkaline earth metal citrate solution by electrodialysis using cationic membranes to effect at least partial conversion of the citrate, followed by crystallization of the acid obtained and recycling of the mother liquor partly (e.g. 10%) to the electrodialysis and partly to a crystallizer which is operated using heat generated in the electrodialysis catholyte. Electrodialysis may proceed at 50-90C and crystallization at 20-60C, the latter optionally using vacuum and centrifugal separation. In Fig. 2 and 3- compartment cell 1 and 4-compartment cell 2 are in series with citrate solution flowing sequentially through compartments 3, 5 and 7 (via vessels 4, 6 and lines 4', 6'), heat-exhanger 21, crystallizer 9 and separator 10. Mother liquor recycles via lines 10', 13, 6' and 14, 15, 16.