baber/WOPTO huggingface dataset:
Patent GB-475438-A (GB)
Title: Heat exchanging element and process of making the same
IPC: B21C37/26
Filed: 1936-08-18
Abstract: 475,438. Making gilled tubes. BERG, A. J., and HUSE, J. O. Aug. 18, 1936, No. 22768. Convention date, Feb. 14. [Classes 83 (ii), 83 (iii), and 83 (iv)] Caulking; turning; cutting-tools. -A heat-exchange element is produced by contracting on a tube a helical shaving, cut from a block of metal having a bore of substantially the same dimensions as the periphery of the tube, the shaving being contracted laterally into contact with the exterior of the tube. A bar 10 with a central bore 12 is rotated in a lathe, and is acted on by a tool 14 to produce a helical shaving 11 which is secured on a tube 13 as a cooling or heating fin. The fin may be secured only by solder 15 at each end, or may be further secured by a slotted roller 17 having projections which produce recesses and projections 21 in the material of the tube 13. In a modification, the tool may be formed with a curved point 14b which produces a portion 11b which seats on the tube surface.
Patent GB-403911-A (GB)
Title: Improvements in landing trains for aeroplanes
IPC: B64C25/00
Filed: 1933-08-16
Abstract: 403,911. Aircraft landing-gear. SOC. FRANCAISE DE MATERIEL D'AVIATION, 58, Rue Fenelon, Montrouge, Seine, France. Aug. 16, 1933, No. 22864. Convention date, July 13. [Class 4.] Landing-gear for aeroplanes includes an oblique half-axle 2 carrying the wheel 1 and guided in a tube 3 by rollers in a member 4 and a piston 5 rigid with the movable member 6a of a shock-absorber 6 universally jointed to the axle 2. The tube 3 is fixed at its upper end to the aeroplane and is further supported by a collar G. The rollers engage the three sides of ribs 9, 10 carried by a sleeve 11 fixed on the axle 2. The rollers 18, 19 and 20, 21 are respectively mounted on axles 16, 17 and the rollers 12, 13 are loosely mounted in boxes 14, 15. The upper end of the shock-absorber 6 is universally jointed to a cap 7 of the tube 3. The rollers 18, 19, 20, 21 may be arranged in a plane slightly inclined to a plane normal to the axis of the member 2.
Patent GB-278866-A (GB)
Title: An extension bracket for tables, shelves, and the like
IPC: A47B1/05
Filed: 1926-09-17
Abstract: 278,866. Simmon, H. Sept. 17, 1926. Shelves.-An extension bracket for shelves &c. comprises a bar h, Fig. 1 (shown applied to a table), slidably carried in a keeper b of channel section secured to the underside of the shelf &c. The bar h is united in outward movement by a right angled projection j, Fig. 3. A lug i at the outer end of the bar b to retain a leaf. Resilient means h, Fig. 3, may be provided within the keeper for steadying the bar. A coverplate may be used above the keeper h. A coil spring may be provided to withdraw the bar h beneath the shelf &c.
Patent GB-814601-A (GB)
Title: Improvements in or relating to chimney cowls
IPC: F23L17/10
Filed: 1954-08-09
Abstract: 814,601. Chimney cowls. OLIVER, H. Aug. 4, 1955 [Aug. 9, 1954; March 1, 1955], Nos. 23034/54 and 6045/55. Class 25 A swivelling type cowl comprises a vane assembly adapted to be pivotally supported in a chimney pot by means including a vertical pivot spindle which engages a blind hole in a boss located at or near the centre of gravity of the assembly. As shown, the vane assembly comprising a shield 1 and a vane 2 having a boss and set-screw 3, 12, is mounted on a spindle 4 supported by a framework having members 5, 7, and extending upwardly from a tubular member 6. This member is held within a chimney pot 8 by straps 9 the ends 11 of which are adapted to receive a binding wire.
Patent GB-366450-A (GB)
Title: An improved internal combustion turbine and turbopropeller
IPC: F02C3/16
Filed: 1930-07-30
Abstract: 366,450. Helicopters ; screw propellers. HOWARD, F. A., 183, Stiles Street, Elizabeth, New Jersey, U.S.A. July 30, 1930, No. 23041. Convention date, July 31, 1929. Void [Published under Sect. 91 of the Acts]. [Classes 4 and 114.] The Specification as open to inspection describes a turbo-propeller in which a series of combustion chambers' are formed on the rim around the blades of a propeller. Fuel and air for combustion are supplied by way of a hollow shaft and through the hollow blades. In a modified arrangement, as shown in the Figure, the combustion chambers 1 are situated near the axis of the rotor. Exhaust gases pass to the tips of the blades through tubes 88 which may form the leading and trailing edges of the blades. A turbo-propeller mounted on a shaft of an aircraft may have a thrust line which is adjustable as the shaft is mounted on a swivel joint. In a helicopter, the turbo-propeller is mounted on a vertical shaft which swivels about a central joint. A brake shoe is provided for the shaft.
Patent GB-731080-A (GB)
Title: Improvements in or relating to electric control apparatus
IPC: G05F1/325
Filed: 1952-09-15
Abstract: 731,080. Magnetic amplifiers. WESTING- HOUSE BRAKE & SIGNAL CO., Ltd., WALKER, A. H. B., and KING, K. G. July 17, 1953 [Sept 15, 1952], No. 23096/52. Class 40 (4). [Also in Group XXXV] Electric control apparatus in the form of a variable inductor having a closed magnetic circuit in which a substantially constant magneto-motive force is opposed to the magneto-motive force of a control winding thereby to produce a resultant error flux in two detector windings is characterized in that the error flux causes the inductance of the detector windings to vary in opposite directions in equal proportions. An outer magnetic circuit 2, 3, 4, 5 has a control winding 1, fed with direct current, wound on the limb 2 the magneto-motive force of which is arranged to oppose the magneto-motive force of a permanent magnet which forms the limb 3 of the outer magnetic circuit. An inner magnetic circuit comprises limbs 7, 8 and 9, 10 having wound thereon and oppositely connected in parallel two pairs of detector windings 15, 16 and 20, 21. Each pair of detector windings is connected in series with an alternating current supply, 17 or 22 and a rectifier bridge 18 or 23, the outputs of these rectifiers supplying control or indicating apparatus 19 or 24. Also located on the limbs 7, 8 and 9, 10 are bias windings 11, 12 fed with direct current over a rectifier bridge 14 and so arranged to produce bias fluxes of equal magnitudes but of opposite directions in each of the pairs of limbs 7, 8 or 9, 10. Alternatively, the bias fluxes may be produced by superimposing a direct current on the alternating current in the detector windings. When the control current in the winding 1 increases to upset the balance of fluxes between the limbs 2, 3 an error flux is produced which flows, for instance, to assist the flux in the limbs 7, 8 and to oppose the flux in the limbs 9, 10. Thus the reactance of windings 15, 16, decreases and that of windings 20, 21 increases, whereby the potentials on the rectifier 18 increase and those on the rectifier 23 decrease in equal proportions. Should the control current decrease, the potentials will be affected in an opposite manner. The various windings are connected in parallel or series opposition to avoid the effects of spurious fluxes on the devices 19, 24. The rectifiers 18, 23 may be arranged to feed differential windings on a single device. Instead of using a permanent magnet the constant magneto - motive force may be produced by a suitably saturated highly permeable limb on the core. Specification 676,835 is referred to.
Patent GB-671333-A (GB)
Title: Electrode type salt-bath furnace
IPC: C21D1/46
Filed: 1948-09-02
Abstract: 671,333. Electrode salt baths. HOLDEN, A. DE F. Sept. 2, 1948 [Sept. 9, 1947], No. 23133/48. Class 39(iii) An electrode-type salt bath furnace having a ceramic pot 20, Fig. 1, 2, for the molten salts has the greater part of the pot bottom covered by pools of metal acting as electrodes 28 that are liquid at the operating temperatures of the furnace, there being one or more refractory separating slabs 27 between the electrodes 28 and current conductors 29 extending from the pools to the exterior of the furnace. Metal containers 26 hold the molten metal 28. As shown, the current conductors 29 extend downwardly, within metal sleeves 29a, through an overhanging ledge 22 of the furnace so as to be heat-insulated from the molten bath. Alternatively, the conductors 29 may be solid or hollow extensions of the containers 26 extending horizontally through the furnace walls, any hollow extensions having at their outer ends an upward extension 77, Fig. 12, forming a well in which the fluid pressures may balance should the normally unmolten metal at the outer ends of these extensions become fused. Such horizontally extending current conductors are cooled within the furnace walls by cooling pipes or heat conductive sheets or jackets 64, to prevent by chilling molten salts from escaping from the furnace. The pools of molten metal are preferably such that each has a surface formed of an oxide of the metal and which is capable of reducing oxides of the work being treated. The refractory mass 21 of the furnace is surrounded by rammed refractory material 31 having an outer layer of insulating material 34 and the whole is enclosed in a heavy gauge steel plate shell 35. In addition a metallic shell 32 may be included between the rammed refractory, material 31 and the surrounding insulation 34. If the furnace is to operate at a lower voltage than would ordinarily be required, conductive bars may extend across and be spaced somewhat above the pools of metal in the furnace or, alternatively, an auxiliary electrode may extend upwardly into the salt mass from each pool of metal. These conductive bars or auxiliary electrodes are preferably of chrome iron or nickel iron alloys. Starting.-When shutting down the furnace, a pronged resistive unit is inserted into the bath such that a prong extends into each pool of metal. The furnace, when cold is thus initially heated by current flowing through the pronged resistance which is removed when the salt bath has become re-fused.
Patent GB-885393-A (GB)
Title: Improvements in and relating to pressure relief valves
IPC: F16K17/04
Filed: 1958-07-18
Abstract: 885,393. Valves. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. July 18, 1958 [July 18, 1957], No. 23178/58. Class 135. A relief valve comprises a piston closure member 3 in a cylinder 2 formed with inlet and relief ports 14, 29 respectively, the piston being formed with passages 16, 18 placing the ports 14 in communication with the pressure line, and being acted upon by a compression spring 7 in a fluid chamber 24 constituted by a recess in the rear portion of the piston and communicating with the passages 16, 18 through an orifice 23, whereby the valve is prevented from operating as the result of temporary surges in the pressure line. The piston is retained in its normal axial position by a spring ring 4. The valve may be adapted to operate also as a flowregulating valve by mounting the piston-cylinder unit in a housing provided with inlet, outlet and relief ports, the effective area of the outlet port being controlled by the left-hand end of the cylinder under the action of a loading spring, Fig. 3 (not shown). The valve may be employed in a vehicle power-assisted steering system.
Patent GB-1156438-A (GB)
Title: Improved Photoelectric Trichromatic Colorimeter and Fluorimeter
Inventor: HARRISON WILLIAM
IPC: G01J3/10
Filed: 1968-05-16
Abstract: 1,156,438. Photo-electric colourimeters and fluorimeters. W. HARRISON. May 16, 1968, No.23285/68. Addition to 912, 729. Heading G1A. The colourimeter or fluorimeter of the parent Specification has its minature fluorescent tube light source replaced by one of 20 watts rating and 24 inches in length and diameter 1¢ inches.
Patent GB-1181876-A (GB)
Title: Improvements in "Pulverulent Coating Compositions and Fluidized Bed Coating Method"
IPC: C09D5/46
Filed: 1967-05-19
Abstract: 1,181,876. Coated metal articles. GENERAL ELECTRIC CO. 19 May, 1967 [20 May, 1966], No. 23321/67. Heading B2K. [Also in Division C3] Metal substrates, e.g. steel bars, are coated in a fluidised bed process with a dry intimate mixture of 60-95% by weight of a film forming material which can be heated to its sintering temperature with degradation, e.g. a polyester or epoxy resin, and which has a granular size of 0.001 to 0.024" and from 5-40% by weight of fibres (e.g. of glass) having a diameter less than or equal to 0.0005" and an average length 0.01 to 0.10". The resultant composition may have a particle size such that no more than 1% is left on a 20 mesh (U.S. standard) screen. In coating the steel bar may be heated to 200C. Epoxy resin coatings may be subsequently cured, e.g. for 2 hours at 200C.
Patent GB-680591-A (GB)
Title: Refrigerating unit
IPC: F25D15/00
Filed: 1950-09-22
Abstract: 680,591. Refrigerating. INGVARDSEN, J. F. I. Sept. 22, 1950 [Sept. 24, 1949], No. 23348/50. Class 29 Condensation or frost on the boundary frame 6 of a refrigerated plate 5 is prevented by placing in heatexchange with the frame 6 a conduit 22, which may be flattened, connected between the condenser 3 and the receiver 23 of the refrigerating system and acting as an auxiliary condenser. The conduit 22 may take several turns around the frame 6 and the initial part may be in heat exchange with the suction pipe to prevent frosting thereon. Several plates 5 may share their evaporators 21 connected in parallel and their conduits 22 connected in series. The expansion valve 26 may be controlled by a thermostat contacting the evaporator. The cold plate 5 may be hollow and contain a brine solution or, as shown in Fig. 5, the evaporator 21 and the plate 5 may be in heat-exchange relation with a brine-containing coil 32. The frame 6, Fig. 7, of an air-cooling unit provided with a fan 35 may be similarly heated. A drip collecting trough 37 is provided. As shown in Fig. 9, the top plate 43 of an ice-cream conserver 40 cooled by evaporator 55 is heated by the conduits 56. Several conservers may be connected so that both their evaporators and their heating conduits are connected in parallel to permit easy disconnection of a conserver. Specification 596,842 is referred to.
Patent GB-1393825-A (GB)
Title: Programming system for press brakes
IPC: B21D5/02
Filed: 1973-05-16
Abstract: 1393825 Press brakes CANRON Inc 16 May 1973 [25 Aug 1972] 23382/73 Heading B3E [Also in Division G3] A programming system for a press brake comprises a backguage 46, a backgauge adjustment assembly for controlling movement of the backgauge, a plurality of backgauge positioning devices which can be pre-set in a non-functional condition, and devices for establishing the backgauge positioning devices in a functional condition in accordance with a predetermined program in between work strokes of the press brake. To program the backgaug it must be restricted as to position and then sequenced as to the use of certain predetermined adjustments in accordance with the bending operations to be formed. Movement of the backgauge, 46, Fig. 5, is controlled by a cylinder 37 and piston (39), Fig. 10 (not shown), in a frame 21. Power is supplied to either end of the cylinder for movement. The backgauge is positioned by screw drives 71-(77), Fig. 4 (not shown), and a latch 89 carried by a drive nut 87 threadedly mounted on each screw drive. A spring 95, Fig. 7, holds the latch in an out-oflatching position and a core 107 attached to the latch via a spring 109 rotates the latch into a latching position upon energization of a solenoid 105. One end of each screw drive supports a chain sprocket 83, each sprocket being offset from the other sprockets associated with both gauge adjustment assemblies. A plurality of backgauge selector switches 189 of a bank 187 and a plurality of program selector sequence switches 185 of a bank 183 are used to establish various backgauge positioning devices according to a predetermined program. Sets of contacts 185a-185d are used in determining repeat strokes where a particular backgauge setting can be used more than once and up to four times in succession in a particular sequence. Contacts 185e are used to correlate the sequence switches to the operation of the backgauge and depth stop controls. A bank 191 includes depth stop selector switches 193. The three banks of switches 185, 187, 191 are mounted on a console 197 panel for use by an operator in programming, in advance, the operations to be performed by the press brake. A stepping switch 201 is associated with the program selector sequence switches and has a plurality of cam-operated contacts 203-241 which are set to function in accordance with a particular schedule, Fig. 12 (not shown). Switches 375 are associated with program selector switches 185b, c, d and related to respective stopping switch contacts 217, 225, 233. Any of relays 391 may be preselectively energized when the contacts of a related stepping switch close and the switches 375 make it possible to selectively introduce any one of the available adjustments into a program at various points in a sequence since relays 391 determine the backgauge and depthgauge adjustments.
Patent GB-484769-A (GB)
Title: Improvements in or relating to thermally-released automatic circuit-breakers
IPC: H01H71/16
Filed: 1937-08-27
Abstract: 484,769. Electrically - released switches. PRENTICE, H. B., and GINN, J.W. Aug. 27, 1937, No. 23470. [Class 38 (v)] [Also in Group XIII] A circuit-breaker of the kind which is tripped by a thermal device comprising a heater coil having a bimetal strip coiled round it, has the strip completely encircling or embracing the heater coil in a single turn only, and the ends of the strip cross or overlap one another siifficiently to ensure that the complete encircling of the heater coil is maintained even when the strip is fully expanded. In Figs. 1, 2, the end 2 of the strip 3 is bent at 6 to form an anchoring tag and is slotted at 5 to receive the reduced operative end 1 which passes through it substantially at right-angles. One end of the enclosed heating-coil 4 may be connected electrically to the end 1, or the coil may be independent of the strip 3. The end 1 may be corrugated or ridged longitudinally so as to be perfectly rigid, Fig. 3 (not shown). In Fig. 8, lateral extensions 7 are provided on the end 1 and are bent round and either secured together at 1c so as to embrace the end 2, or, Fig. 6 (not shown), interconnected by a bar. Alternatively a slotted member may be passed over the end 2 and secured to the end 1, Fig. 10 (not shown), or, Fig. 4 (not shown), a rod attached to the end 1 may extend through a slot in the end 2. The strip may alternatively be secured by lateral wings formed on one end and coiled with the strip, Figs. 11, 12 (not shown).
Patent GB-412439-A (GB)
Title: Improvements in recording weighing-scales
IPC: G01G23/18
Filed: 1933-08-24
Abstract: 412,439. Weighing-apparatus. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.- (Toledo Scale Manufacturing Co. ; Monroe Street, Toledo, Ohio, U.S.A.) Aug. 24, 1933, No. 23540. [Class 143.] Printed records, apparatus for giving.-A recording weighing scale comprises an automatic load-counterbalancing mechanism operatively connected with a weightindicating mechanism and a type carrying disc or member, a printing mechanism arranged for printing a composite symbol in conjunction with a weight value printed from the type carrying disc, and a mechanism including a manually operable set of keys for selecting and setting the characters of the composite symbol prior to printing. As shown in connection with a weighing scale for postal purposes where it is required to print on a ticket the weight of a parcel, a zone symbol relating to the destination of the parcel, and the amount of postage required for mailing, a thin combined indicating and printing disc 25 is rotated automatically in proportion to the weight of the parcel placed on the scale and indicates at an opening 30, the weight and a row of postage values corresponding to the various postal zones marked on a stationary strip 29. The weight printing type are situated near the periphery of the disc, and the zone and postage type are carried on horizontally-slidable strips 48 (four in number) set by means of four columns of keys 33, 34 the first column 33 representing the various zones and the other three columns representing the postage in dollars and cents. After the setting, a printed record (shown in Fig. 15) is obtained on an inserted ticket by pressing a push button arranged in the circuit of a solenoid actuating the impression jaws. A duplicate, printed on a strip may be retained in the machine. Each key 33 or 34 is urged into its outer position by a spring and when pressed in, engages (by means of a shoulder 35, Fig. 8) cam-like projections 36 on a rock shaft 37, one rock shaft being provided for each column of keys. The rock shaft is thus rotated to an extent dependent on the key pressed in, and transmits the movement by means of an arm 40 to the corresponding type strip 48 which is thus set in correct position for printing. During the depression of the key the shoulder 35 presses back a retaining leaf pawl 38 common to the whole column of keys and liberates (for return to zero position) any key of the same column previously in depressed position. The complete depression of the key carries the shoulder 35 past the leaf pawl which then retains the key for the printing operation. Instead of parcel postage characters, identification numbers may be printed, for example at a milk receiving station, the numbers may identify the route and patron ; in a compounding room they may identify batches and ingredients.
Patent GB-189256-A (GB)
Title: Improvements in or relating to holders or containers applicable for use with sterilised surgical dressings or the like
IPC: A61F15/00
Filed: 1921-09-05
Abstract: 189,256. Allen & Hanburys, Ltd., and Baldock, G. R. Sept. 5, 1921. Disinfected articles, protecting. - Surgical dressings or the like are placed in a container e, preferably of metal, having a lid a provided with two depending flanges b, c forming an annular groove or channel containing a ring or wad of sterilized cotton-wool f. The dressings are sterilized within the container and the lid is applied and secured while the device is under the action of the sterilizing means, the ring or wad of cotton-wool forming a seal. The lid may be produced by soldering the internal ring c in position, or it may be pressed in one piece as shown in Fig. 6.
Patent GB-792995-A (GB)
Title: Improved epoxide resin compositions and products
IPC: C08G59/68
Filed: 1955-08-16
Abstract: Epoxide resin compositions which cure rapidly on heating to tough, adherent, heatresistant products and are suitable for use as adhesives, moulding resins, coating compositions and impregnants, consist of a mixture of an epoxy polyether of a polyhydroxy compound, a polycarboxylic acid anhydride and not less than 0.05 per cent by weight of the resin, of a sulphur-bearing organic rubber vulcanization accelerator, e.g. benzyl disulphide, di-tert.-butyl disulphide, n-butyl disulphide, iso-butyl disulphide, dipentamethylene thiuram tetrasulphide, diphenylthiourea, the zinc salt of mercaptobenzothiazole, dibutylxanthic disulphide, tetraethyl thiuram monosulphide and disulphide, benzothiazyl disulphide, activated dithiocarbamate, Zn-diethyldithiocarbamate.  A mixture of 100 parts epoxide resin, 10 parts phthalic anhydride and 0.675 parts tetraethyl thiuram disulphide on heating gelled in 13 minutes. Tables are given of the various accelerators and the gelling times and hardness of the product obtained for various weights of accelerator.  Epoxidized unsaturated oils, butadiene polymers or their epoxidized derivatives, crotonic or acrylic acids; wood flour, carbon black, clay, glass fibres, asbestos, mica, chlorinated diphenyls may be added to the mixture.  Maleic anhydride or tetrapropenyl succinic anhydride may be used instead of phthalic anhydride.  Reference has been directed by the Comptroller to Specification 730,670.