baber/WOPTO huggingface dataset:
Patent GB-564582-A (GB)
Title: Improvements in industrial furnaces
IPC: C21D9/663
Filed: 1942-12-09
Abstract: 564,582. Heat treatment furnaces. GIBBONS BROS., Ltd., MARLE, M. VAN, and WEBB, A. W. OGILVY-. Dec. 9, 1942, No. 17504. [Class 64 (ii)] [Also in Group XII] Apparatus for the heat treatment of metals comprises a series of independent ovens 16, Fig. 1, connected by damper-controlled branch conduits 15, 17 to flow and return pipes 14, 18 in communication with a heater 10, a fan 11 being provided in the flow pipe 14 at one side of the heater to effect the circulation of hot gases through one or more of the ovens. The heater may comprise externally heated tubes through which air or inert gases are passed or electrically heated apparatus having heating elements exposed to the gases to be heated. The pipes 14, 18 are arranged at the sides of the ovens and below ground level. In the oven shown in Fig. 2, the branch 15 discharges tangentially into the upper part of the oven and the gases leave through an aperture 27 at the bottom communicating with the branch 17. The oven is provided with a removable cover 25 and the charge is supported on a removable cylindrical carrier 28 having annular supports 29 for coils of wire or metal strip to be treated. Fig. 3 shows a bell-type oven to which the gases enter by the branch 15 discharging at the top of the oven. The gases leave the oven at the bottom. In a modified form of oven (not shown), the bell is of rectangular form and is used for heating metal plates; the gases entering and leaving the bottom of the oven. A shield may be arranged inside the bell to enclose the goods.
Patent GB-129657-A (GB)
Title: Device for Automatically Changing the Bobbins in Power Looms.
Inventor: ZELL GIACOMO
IPC: D03D45/20
Filed: 1919-07-12
Abstract: 129,657. Zell, G. April 12, 1917, [Convention date]. Shuttles, changing bobbins in, automatically.- A bobbin feeler 4, Fig. 1, on an arm 5 on a shaft 6 is normally pressed back by the weft on the bobbin 7 to such an extent that a pawl on the shaft raises an arm 9 on a spring-controlled bar 13 out of the path of a toothed cam-oscillated lever 3, but when the bobbin is exhausted the arm 9 is engaged by the lever 3, and by means of levermechanism 19, 20 a shaft 21, Figs. 1 and 3, is rocked. The end 23 of a lever 22 on the shaft 21 then engages a sleeve with oblique surfaces 24 on a driving-shaft 1, and causes a cam 26 to be clutched to the shaft. By means of a fork 27, lever-mechanism 28, 29, 30, a yielding rod 31, 32, and a crank 33, carriers 34 of the kind described in Specification 7205/09 are operated to seize the bottom bobbin in the magazine 36 and position it over the shuttle, into which it is then transferred by a bobbin changer 42 operated by lever mechanism 41, 40 from the cam 26. The weft ends are secured to an arm 44. The lever 3 has a second notch, which engagesa thread feeler or weft fork 15 to cause the bobbin-changing mechanism to be operated when the weft breaks. In the Specification as open to inspection under Sect. 91 (3) (a), the weft fork 15 is stated to operate loom stopping-mechanism. This subject-matter does not occur in the Specification as accepted.
Patent GB-584961-A (GB)
Title: Improvements in bale-tie fasteners
IPC: B65B13/24
Filed: 1944-09-14
Abstract: 584,961. Bale-ties. EATON, J. W. Sept. 14, 1044, No. 17627. [Class 45] Relates to apparatus for applying metal bands or straps to cases, &c. of the kind comprising a base over which the tying band is led and on which is pivoted a hand-lever movable in the plane of the band and actuating a straining or stretching mechanism, the lever consisting of two arms a, b relatively movable in a plane at right-angles to the plane of the band for operating a crimping or fastening device. According to the invention, the base is adjustable in form so as to be applicable at will either to flat surfaces, e.g., those of boxes, bales, cartons, &c. or to convex surfaces, e.g., those of tubs, barrels, &c. In known manner, the lever carries a spring-controlled pawl for actuating a ratchet wheel associated with an eccentrically-mounted straining or stretching wheel e adapted to be moved into and held in contact with the tying band by means of a second hand-lever f actuating an eccentric mounted on a spindle g within the wheel e. A second ratchet and pawl may hold the wheel e stationary when the lever a, b is moved into its vertical position prior to being depressed into its horizontal position for straining the tying band. Instead, however, of the usual fixed base, the apparatus is provided with a base consisting of a plurality of relatively angularlyadjustable portions. As shown, the base comprises two portions h, i pivoted at h<SP>2</SP>,i<SP>2</SP> on a bracket k and formed with slots h<SP>3</SP>, i<SP>3</SP> through which passes a bolt m secured to the bracket, a wing-nut l securing the portions h, i in their required positions. A cutter blade n pivotally secured to one of the lever arms and slidable in a guide p is adjustable in position by the pivot pin o and when the arms are moved to actuate the crimping or fastening device, the cutter is depressed to cut the tying band. The cutting operation may occur simultaneously with the fastening operation or immediately thereafter.
Patent GB-1011975-A (GB)
Title: Novel modified polyesters and method for preparation thereof
IPC: C08G63/82
Filed: 1962-05-08
Abstract: In the manufacture of polyethylene terephthalate by polycondensing bis-(beta-hydroxyethyl) terephthalate or an oligomer thereof, products of improved dyeability are obtained by incorporating in the reaction mixture whilst the intrinsic viscosity of the polyester is less than 0.3 either a sulphonic acid having no ester-forming functional group in its molecule or an acid-reacting metal sulphate; the amount of the additive being such that the softening point of the modified polymer obtained is 210-250 DEG  C.  The lowered softening point is due to the conversion of some of the ethylene glycol into a polyethylene glycol component (especially diethylene glycol). Specified sulphonic acids are stearyloxy benzene sulphonic acid, lauryl benzene sulphonic, naphthalene sulphonic acid, propane-2-sulphonic acid and cyclohexane sulphonic acid.  Specified metal sulphates are alkali metal hydrogen sulphates and the sulphates of zinc, cadmium or manganese. Up to 15 mol. per cent of the terephthalic acid may be replaced by other aromatic dicarboxylic acids, aliphatic dicarboxylic acids or aromatic hydroxy acids and up to 15 mol. per cent of the ethylene glycol may be replaced by glycols containing 3-10 carbon atoms.  Polyester forming branching-agents may also be included.  Polysterification may be effected in the presence of the usual catalysts, phosphorus compounds and delustrants. Examples describe the reaction of dimethyl terephthalate and ethylene glycol with or without 2,2 - bis - [p - (b  - hydroxyethoxy) - phenyl]-propane or pentaerythritol.
Patent GB-612991-A (GB)
Title: Improvements in the electrical welding of aluminium and light alloys
IPC: B23K11/18
Filed: 1946-06-13
Abstract: 612,991. Electric welding. WILLIAMS, B. H. LE P. June 13, 1946, No. 17706. [Class 83 (iv)] Aluminium &c. parts c, d are flash-welded when fluid pressure &c. operated clamps a, b are urged together by fluid-pressure piston h to complete a transformer secondary circuit giving 500,000 amperes at 2 to 25 volts. When the joint surfaces attain plasticity, a heavier forging pressure is applied by a piston i, to complete the weld while it is maintained at the forging temperature. The clamps a, b and the pistons h, i may be electronically &c. controlled.
Patent GB-896739-A (GB)
Title: Improvements in or relating to polyalkylene base material
IPC: C08J5/22
Filed: 1958-06-03
Abstract: Polymeric material is obtained, by swelling a solid polyalkylene base material in a liquid monomeric aromatic vinyl compound and polymerizing the product by heat in the presence of a polymerization catalyst, and is used for the production of ion-exchange material by the introduction of ionic groups thereto. Polyethylene and polypropylene, both high and low pressure types, exemplify the polymer base and styrene or o- or pvinyl toluene the monomer, which may include cross-linking agents such as divinyl benzene.  Benzoyl peroxide and N,N-azobisisobutyronitrile are mentioned as catalysts and the polymerization may be performed under conditions to prevent the escape of monomer, such as polymerizing in a confined space, under monomer vapour, or under a saturated aqueous salt solution such as sodium or ammonium chlorides or sulphates, calcium chloride or aluminium sulphate.  An example describes the swelling of polyethylene sheet in monomeric styrene which is polymerized in the presence of divinyl benzene and benzoyl peroxide, in a heated aqueous solution of sodium sulphate.  The polymeric material is treated to introduce the positive and negative ionic groups, for instance by the introduction of halogen groups by chloromethyl ether with tin or titanium tetrachlorides as catalysts, and replacement with amine groups, for example, by trimethyl or triethylamine, pyridine, N-N-dimethylaminoethanol, and dimethyl aniline, and by the introduction of sulphonic groups by treatment with sulphuric or chlorosulphonic acid in the presence of mercuric chloride or silver nitrate catalysts, and the sulphonated products may be treated with bleaching lye to reduce their electrical resistance.  The products are suitable for use as ion-exchange material in the form of sheets, tubes, beakers, plates and rods for electrodialysis processes such as the removal of minerals from aqueous solutions.  Specifications 507,323, 778,001 and 896,740 are referred to.
Patent GB-665703-A (GB)
Title: Improvements in and relating to a frame structure for multi-crankshaft internal combustion engines
IPC: F02F7/00
Filed: 1949-07-05
Abstract: 665,703. Multi-crankshaft engine frames. SOC. D'ETUDES DE MACHINES THERMIQUES. July 5,1949 [July 9, 1948]. No. 17762/49. Class 7(ii) A frame 1 which may comprise a rigid assembly of rolled, cast and/or forged components, for supporting a number of banks of piston-cylinder units disposed around the axes of one or more power shafts has means at the basefor containing and supporting two lowermost banks 4. 5, and the associated crankshafts 2, 3, and further supporting means at the upper portion for supporting at least one other bank 9, and crankshaft 8. There may be longitudinal partitions 11, 12 to provide operating chambers and oil sumps for each crankshaft, and the banks may be disposed symmetrically about the longitudinal plane XX of the engine. The lower banks may be inclined, and there may be a central power shaft tunnel, Figs. 2. 3 (not shown). Specifications 665,702 and 665,704 are referred to.
Patent GB-843769-A (GB)
Title: Improvements in or relating to remote control by means of electric motors
Inventor: BRAMLEY LIONEL NAPIER
IPC: G05D3/12
Filed: 1956-06-08
Abstract: 843,769. Electric correspondence control. BRITISH IRON & STEEL RESEARCH ASSOCIATION. June 11, 1957 [June 8, 1956], No. 17771/56. Class 40 (1). A remote control system which may be used for controlling the screw down of a rolling mill includes means for producing a " difference " electrical signal corresponding to the difference between the actual and desired positions of the rolls, means for generating a " rate " signal which is a function of the rate of change of roll position, means for generating a control signal according to the difference between the " difference " and " rate " signals and applying this control signal, after amplification, by a chain of relays, to the motors controlling the setting of the rolls. By means of a selsyn link, slider 20a of a potential divider 20 is set to a point corresponding to the desired setting of the rolls, whilst slider 29a of potential divider 29 is driven by the motor 24 (not shown) which controls the rolls and has a potential corresponding to the position of the rolls. Hence a potential difference exists between 20a and 29a corresponding to the difference between the actual and desired roll settings, and this " difference " signal is applied across polarized relay PR1, PR2 and the overload relay L. When this difference signal is small, only PR1 is energized, and this energizes either relay POU or POD by means of contacts pr1 and 52 or 53 according to the direction of the current. In turn POU or POD operates relay U or D to drive motors 24 in the desired direction. The chain of relays PR1, POU or POD, U or D control successively larger currents so the device acts as a high-gain amplifier. For larger signal differences relay PR2 is also energized and in turn operates relays POA, A to accelerate the motor, whilst for very large signal differences relay L is energized and operates contacts L1, L2 to bring in shunt resistor 49 and series resistor 50. Hunting is prevented by backing off the " difference " signal by a " rate " signal voltage which is proportional to V Œ kV |V|, where V is the speed of motor 24 and k is a constant, produced by D.C. tacho generators 60, 61, 62 driven by motor 24. Generator 62 and rectifier 63 produce a current which is proportional to | V | and this is applied to field winding 64 of generator 61 whose output voltage is proportional to V | V | and is applied across potential divider 48. The voltage generated by 60 is proportional to V and is applied across potential divider 47, the constant k depending on the settings of 47 and 48.
Patent GB-120468-A (GB)
Title: A New or Improved Differential Gearing for Steering Motor Vehicles.
Inventor: BLACKSTONE GEORGE MILLS
IPC: F16H1/30
Filed: 1917-11-30
Abstract: 120,468. Blackstone, G. M., Carter, F., Carter, E., and Watts, R. E. Nov. 30, 1917. Compulsory differential driving, and differential braking.-Differential driving-mechanism of the kind described in Specification 119,563 is modified in that the bevel gears driving the worms are replaced by skew spur gears. The sun wheels d are engaged by worms f, the spindles of which are provided with skew spur gears d'. The gears d' mesh with skew gears d<2> which are mounted parallel with the shaft a and are driven by spur gears g in mesh with a spur gear h on the brake drum h<1>. Bevel gears can be used instead of the gears g, h if the axis of rotation of the skew gears d<2> is inclined to the shaft a.
Patent GB-460365-A (GB)
Title: An improved captive flying toy
IPC: A63H27/04
Filed: 1935-06-21
Abstract: 460,365. Toys. HAY, J. M. June 21, 1935, No. 17854. [Class 132 (iii)] A toy device for simulating the evolutions of a flying machine comprises an aeroplane 2, Figs. 1 and 2, connected by eyelets 13 to a bridge-piece 12 connected by a loop 17 and hook 18 to a cord 24 of twine, thread or rubber connected by a hook 27 to a ring 29 encircling a pin 28 partially embedded in the end of the cane rod 25 which can be moved by hand. A tail skid 11 is attached to the underside of the fuselage at its rear end by means of glue or other adhesive and is of thin copper wire or other pliant light material so that it can be twisted to alter the angle of incidence of the plane on the ground. The eyelets 13 to which the bridge piece 12 is connected are formed of twisted wire with the ends 15 splayed out beneath the wing and in some cases bent back round the edge of the wing at 16 to lock the eyelet against movement. The ends of the bridge piece 12 may be passed through the eyelets 13 and twisted or may be provided with swivel portions for detachable connection with the eyelets. The aeroplane may be of the " pusher " type as shown in Fig. 3 in which the fuselage 20 is of skeleton formation and the wings 21 are bent up slightly towards the ends. The ends of the bridge piece are elbowed at 22 and turned back in a detachable manner through the eyelets 13 so that the aeroplane can be flown in an inverted position. The propeller 4, Figs. 8 and 9, is loosely mounted on a pin 5, and a bearing 30 in the form of a sleeve, Fig. 8, or bead, Fig. 9, of glass or metal is embedded in the propeller 4 and held by glue. The bearing 30 projects slightly from the rear of the propeller to save wear of the latter and contacts with a bead or sleeve 26 of hard material loosely threaded on the pin 5 or with a washer or ring 31 of hard material on the nose of the aeroplane to set up a humming noise or a buzz when the propeller is rotating. If desired bead 26 and washer 31 can be used together. The aeroplane can be furnished with cockpits in which light wood figures 38, Fig. 3, can be placed, the figures being preferably provided with arms formed by pins passing through them. Miniature instruments or guns may also be arranged on the aeroplane and, with the toy figures 38, may be used as weight adjusters. The aeroplanes may have a plurality of propellers and several aeroplanes may be suspended from a single rod 25.
Patent GB-501711-A (GB)
Title: Improvements in absorption refrigerating machines
IPC: F25B33/00
Filed: 1938-06-16
Abstract: 501,711. Refrigerating. MAIURI REFRIGERATION PATENTS, Ltd., and MAIURI, G. June 16, 1938, No. 17927. [Class 29] Absorption systems.-Heat exchange between weak and strong liquor is effected in the absorber in such manner as to avoid loss due to heat of evaporation of absorbent liquid in the absorber, the incoming liquor being caused to exchange heat with the outgoing liquor before it contacts with gas or vapour. In the reabsorption non-condensing system shown and comprising a generator a heated by a steam coil at, a reabsorber b cooled by a water coil b<3>, an " evaporator " c in which vapour is evolved from strong liquor flowing over a coil c3 conveying brine or other medium to be cooled, and an absorber d cooled by a water coil d<3>, the weak liquor is raised by the generator pressure through a coil in the upper part of the generator and pipe i with expansion valve i<1> to a weir and wick arrangement d<1> in the absorber. The liquor flows over a coil m conveying strong liquor and located around an open-ended bell n through which refrigerant vapour enters from the evaporator, so that heat is transferred to the strong liquor without a loss due to heat of evaporation of absorbent liquid into the incoming current of vapour. The strong liquor is delivered by a pump k through the coil m and flows through a pipe j to an annular space at the top of the generator formed by a baffle o dipping into the seal trough a<4>. The weak liquor coil l is located in this space and heat exchange is effected there out of contact with generated vapour, which rises through a rectifier comprising Raschig rings q located between the annular space and a central hollow core or filler p. The pipe l is also contacted by strong liquor falling from the wick a<2>. Heat exchange is also effected in the reabsorberevaporator liquor circuit by means of coils s, r, as shown. The invention may also be used in inert gas systems.
Patent GB-225156-A (GB)
Title: Improvements in apparatus for boiling and washing linen
IPC: D06F39/00
Filed: 1924-07-28
Abstract: 225,156. Renson, J. July 28, 1024. Washing-machines with swinging beaters or squeezers in stationary receptacles.-The beater comprises two metal plates D having horizontal strengthening ribs h and vertical semi-circular recesses e so that, when the plates are riveted together, the recesses form vertical water passages. The beater is centrally pivoted in horse-shoe bearings g and is oscillated by a handle K fitting into one of the water passages and passing through a slot in the lid C. The plane portions of the plates are perforated and a false bottom B is provided which is perforated at its periphery and beneath the beater.
Patent GB-374290-A (GB)
Title: Improvements in or relating to variable lens systems of kinematograph projectors
IPC: G03B19/18
Filed: 1931-06-22
Abstract: 374,290. Kinematograph projectors. KERSHAW, N. and SOHO, Ltd., 3, Soho Square, London. June 22, 1931, No. 17972. [Class 97 (i).] Lens mounts.-In a variable lens system for a kinematograph projector wherein lens components are adjusted towards or away from each other to vary the magnification whilst maintaining a fixed focal distance, means are provided for giving a visible indication of the settings of the lens system. The invention is particularly. applicable to projectors used for both silent and sound films, the setting being in this case indicated by the appearance behind an aperture of the word "sound" or " silent." The mount shown consists of an inner lenscarrying tube 1 connected through a pin 21 and a spiral slot 2 to the outer lens-carrying tube 3 which is screwed into the stationary tube 4. An intermediate fixed tube 6 has an axial slot 5 in which the pin 2<1> engages. The tube 3 can be rotated by a handle 8, said rotation causing the tube 3 to move axially owing to its screw engagement with the tube 4, and the tube 1 to be moved axially by the pin and slot means. The indications of the lens setting are marked on a ring 7 secured to the tube 3 and are visible through an aperture 9 in the tube 4.
Patent GB-237256-A (GB)
Title: A new or improved composition for destroying insects and protecting the growth of fruit trees and other plants
IPC: A01N59/22
Filed: 1925-07-14
Abstract: 237,256. Roelofsz, C. M. July 16, 1924, [Convention date]. Insecticides; fungicides.-A composition to be injected into trees and other plants is prepared by slaking a mixture of quicklime, sulphur, and arsenate of lead with a small quantity of water, adding more water after the slaking reaction has taken place, and straining the mixture to obtain a solution ready for use. The solution may be poured into holes drilled into the trunks of trees and the holes sealed to present evaporation, or may be injected by means of a hypodermic syringe into smaller plants. It is stated that insects attacking the leaves or fruits are destroyed, fungoid diseases prevented, and growth stimulated.
Patent GB-849383-A (GB)
Title: Improvements in or relating to parking meters
Inventor: FENNELL CYRIL HENRY
IPC: G07F17/24
Filed: 1957-06-07
Abstract: 849,383. Coin-freed parking meters. PARKING METERS (EUROPE) Ltd. July 3, 1958 [June 7, 1957], No. 18198/57. Drawings to Specification. Class 27 The parking meter of Specification 849,381 is described and the claims relates mainly to the pawl 102 holding the indicator plate 97 against movement until the coin is released and to the means for operating the "expired" flag. Specifications 849,382 and 849,384 also are referred to.
Patent GB-563134-A (GB)
Title: Improvements in and relating to filtering apparatus
IPC: B01D29/00
Filed: 1942-12-22
Abstract: 563,134. Filtering. METAFILTRATION CO., Ltd., PICKARD, J. A., and HAYES, F. W. Dec. 22, 1942, No. 18200. [Class 46]. [Also in Group XXIX] A suspension of filter aid is supplied from a container i through a proportioning valve p, o in a chamber h connected to the inlet of the pump a, which feeds the liquid to be filtered. from a line b to the filter e, a reducing valve g maintaining the pressure in the chamber h substantially uniform. As shown, the chamber h comprises a glass cylinder k clamped between end plates 1, 1 provided with an outlet r and an air vent s and with an inlet m, fitted with a strainer n, respectively. The vertically-guided valve member p or its seating o is formed with a gap z to permit in normal operation the delivery of the suspension into the chamber at the desired,rate. If the suction exceeds a predetermined value as by the choking of the gap z, the valve member p lifts against the action of a weight wand the deposited material is Hushed away.
Patent GB-849170-A (GB)
Title: Treatment of perishable foodstuffs
Inventor: KEEPING WILLIAM OWEN
IPC: F25D3/11
Filed: 1957-06-07
Abstract: 849,170. Refrigerators. BRITISH OXYGEN CO. Ltd. May 13, 1958 [June 7, 1957], No. 18203/57. Class 29 Cartons 22 of perishables such as foodstuffs to be frozen, are conveyed in tunnel 1 through a counter-current stream of vapour from a liquid air or nitrogen bath 4, are immersed in the bath, are lifted by a hoist 10, and are then moved through opening 8 into pre-cooled heat insulated containers 9. The bath 4 and pipe 12 for the pre-cooling liquid are supplied from heat-insulated refrigerant stores 15, 11 respectively.