baber/WOPTO huggingface dataset:
Patent GB-353488-A (GB)
Title: Improvements in method of cleaning the surface of metals
IPC: C25F1/04
Filed: 1930-03-21
Abstract: 353,488. Cleaning and coating metals by electrolysis. GOLBY, F. W., 3, John Street, Bedford Row, London.-(Bullard Co. ; Brewster Street, Bridgeport, Connecticut, U.S.A.) March 21, 1930, No. 9064. Drawings to Specification. [Class 41.] Iron, steel, aluminium, and other metals are cleaned and freed from scale by treatment as cathodes in a bath at such a current density that hydrogen is generated, a thin film of a metal such as lead being at the same time deposited thereon. The electrolyte may consist of an aqueous solution of hydrochloric and sulphuric acids together with a sodium salt, preferably chloride or sulphate and some dissolved lead. The solution may be used cold but is preferably heated. The current density may be 75-100 amps. per square foot or higher. The lead content is maintained by the addition of a soluble lead compound or by the use of soluble anodes alone or in combination with insoluble anodes. Anodes of lead or antimonial lead, or of carbon, graphite, iron, silicon-iron, or tin may be used. Acetic acid may be used instead of mineral acids. The articles may be hung between rows of anodes or drawn between the anodes by a chain conveyer. Reference has been directed by the Comptroller to Specifications 4877/81, 15271/03, 10120/05, 17672/06, 25553/07, 22141/11, [all in Class 41, Electrolysis], and 27641/12, [Class 82 (ii), Washing granular &c.].
Patent GB-1326335-A (GB)
Title: Battery charger
IPC: H02J7/02
Filed: 1972-03-28
Abstract: 1326335 Battery charging systems WESTINGHOUSE ELECTRIC CORP 28 Feb 1972 [25 March 1971] 9081/72 Heading H2H A battery charger with controllable rectifiers comprises control means for limiting the charging current 15 to a first value, reducing this to a second (lower) value when the terminal voltage of the battery increases to a first voltage value, and to a third value e.g. zero, when the terminal voltage increases to a second (fully charged) value, and to increase the charging current if the terminal voltage subsequently decreases. In Fig. 2, A.C. power source 10 is used to charge battery 14 via controlled rectifier 12, the priming of which is controlled by the conduction of unijunction transistor 88. The power source 10 is also connected to rectifier bridge 60 to supply a reference voltage. Transistor 78 is arranged to conduct during negative half cycles, and this prevents transistor 88 from conducting. The conduction of transistor 88 also depends on the charging of capacitor 100 which, if not shorted via diode 112, will charge sufficient to allow transistor 88 to conduct during 0-150 degrees of the half cycle. The charging current is measured by means of current transformer 36, rectifier 40, and as this current increases, the voltage at 52 increases until Zener diode 128 conducts causing transistor 118, and thus diode 112 to conduct, thus restricting the charging current due to slower rate of charging of capacitor 100. The battery voltage is measured by means of potentiometer 144, and when sufficient Zener diode 156 conducts to turn off transistor 160 so that the voltage at 122 increases to facilitate the breakdown of Zener diode 128, thus establishing the charging current at an intermediate value. When the battery is fully charged, the voltage is sufficient to breakdown Zener diode 186 which fires Schmitt trigger circuit 166/168 causing transistor 120 and thus diode 112, to conduct, thereby cutting off the charging current. If the battery voltage subsequently falls, the Schmitt circuit reverts to its original state, so allowing charging at the intermediate rate. A three phase circuit is also described.
Patent GB-557871-A (GB)
Title: Improvements in or relating to the hardening by stoving of films of paint, varnish or like coating compositions
IPC: F26B23/10
Filed: 1941-07-18
Abstract: 557,871. Coating surfaces; heat treatment of coated articles. IMPERIAL CHEMICALS INDUSTRIES, Ltd., and MATHEWS, A. C. B. July 18, 1941, No. 9092. [Class 95] [Also in Group XI] A process for the heat treatment of articles coated with films of paint, varnish or other coating 'composition for the purpose of drying, stoving or baking, comprises exposing the said articles to intense radiant heat from a source which is at a temperature of not less than 450‹C and not higher than 1200‹C, for a period of not more than 120 seconds, the temperature and period of heating being so chosen that the coating is hardened. The film is thus hardened without deleteriously beating the article as a whole. Specified sources of radiant heat are gas-heated surface combustion units, electrical resistors, and an electrically heated large-area radiating surface disposed within an evacuated quartz bulb, and reflectors may be used in conjunction therewith. Examples are given of the baking of coatings of copal varnish and of synthetic resin varnishes and paints, on metal cylinders and panels, and on copper wire. Specifications 245,182, [Class 75 (i)], 416,802, 451,971, 462.348. 488,709, 504.738, [ all in Group XI], and 527,290, [Group XVI], are referred to.
Patent GB-586441-A (GB)
Title: Improvements in or relating to valve mechanisms
IPC: F16K47/00
Filed: 1944-05-12
Abstract: 586,441. Valves. SHEPHERD, G. R. (Westinghouse Electric International Co.). May 12, 1944, No. 9151. [Class 135] A valve mechanism particularly for electric ally-actuated valves for the blast gas of electric circuit interrupters comprises a valve member 21 co-operating with a seat 53 to control the blast gas from a tank 1 to the circuit breakers 11, 15. The valve member 21 has a short stem 37 which slides within an outer stem 39 and is connected thereto by a spring 42 secured by pins 43, 45 to allow some relative movement: The outer stem 39 is connected to the operating lever arm 23 and has a number of guide vanes 47 which allow passage of the gas when the valve is open and abut against the end of the tube 7 when the valve is closed. When the valve is closed suddenly the seat 53 only takes the shock of the valve member 21, the remainder of the mechanism moving against the spring 42 until the vanes 47 contact the tube 7. In a modified arrangement the lever has a projection which comes up against an abutment on the casing to take the shock of the moving mechanism and the seat is made of a separate ring of resilient materials.
Patent GB-1512946-A (GB)
Title: Treatment of iron cobalt alloys
IPC: C22F1/10
Filed: 1975-05-28
Abstract: 1512946 Heat-treating Fe-Co-V alloys DEFENCE SECRETARY OF STATE FOR 28 May 1975 [28 Feb 1974] 9240/74 Heading C7A An alloy containing from a trace to 4% V, the balance being Fe and Co in a weight ratio of 1.1 : 1 to 0.9 : 1 and which is initially in the disordered alpha-phase is heated at 400-600‹C for >1 hour and cooled whereby the product has a yield strength of >150000 p.s.i.
Patent GB-785439-A (GB)
Title: Improvements in alkaline electric cells
IPC: H01M10/34
Filed: 1953-04-02
Abstract: 785,439. Batteries. VOGT, H. April 2, 1953 [April 5, 1952], No. 9284/53. Class 53. An alkaline accumulator is provided with superimposed horizontally arranged sintered electrodes which are in the form of thin discs separated by porous insulating sheets. The container can be closed hermetically by.a stopper, the gases evolved during charging being caused to combine with one another by the catalytic effect of the active material of the electrodes. In order to ensure the correct proportion of hydrogen and oxygen, the gases evolved in the early stages of charging which contain an excess of hydrogen are allowed to escape from the cell which is subsequently closed. The Figure shows a cell in which the cathode discs 10 make contact round their peripheries with the metal container 2, the anodes 9 being attached to a metal rod 11 secured to the stopper 6 which also serves as a terminal. A screw-threaded nut 8 co-operates with the stopper 6 to seal the container. The discs 9, 10 are separated by insulating sheets 12. When the cell is assembled, the anodes may be in the charged condition while the cathodes are uncharged, whereby excess of hydrogen in the evolved gases is avoided.
Patent GB-702549-A (GB)
Title: Improvements in or relating to blade structures for axial flow compressors, turbinesor the like
Inventor: BELL JOHN ERNEST
IPC: F01D5/30
Filed: 1951-04-20
Abstract: 702,549. Turbine and compressor blades. BRISTOL AEROPLANE CO., Ltd. April 21 1952 [April 20, 1951], No. 9315/51. Class 110 (3) An axial-flow turbine or compressor blade comprises a blade working portion and a hollow sheet metal root portion extending therefrom, the root portion having a pair of opposite divergent sides with one or more stiffening members extending therebetween to prevent lateral movement of the sides. The blade working portion may be hollow and of sheet metal, the divergent sides of the root portion being made integral therewith. In Figs. I and II, the blade root portion comprises a platform 4 having divergent sides 7, 8 which are connected by a stiffening member 9, the flanges 10, 11 of which are connected to the inner faces of the sides 7, 8. The blade working portion extends through the platform 4 and stiffener 9 and the remaining sides 5, 6 and blade are cut away at 13, 12 for lightening purposes or to allow the passage of cooling or heating fluid. The blade root portions may be accommodated in axial, circumferential or oblique slots. In Fig. III, the rotor blades 24 pass through a. ring 18 comprising a frustoconical surface 19, having divergent sides 20, 21 which are connected by a sheet metal stiffening ring 23 having upward-turned flanges 26, 27. Down-turned lugs 31, 32 also extend from the ring 25 and correspond to lugs extending from the sides 20, 21, and U-shaped stiffeners 33 extend therebetween. Bolts 30 secure the blades between the rotor discs 28, 29 In Fig. VI the root portion comprising the divergent sides 35, 36 is formed integral with the blades and the ends of the roots are closed either by integrally pressed-out parts or by additional parts brazed in position, these parts constituting the stiffening members. Tray-like distance pieces 37 having sides 38, 39 contiguous with the sides of the roots 36, 35 ate disposed between the blade roots. A platform ring member 18 with downward-turned side flanges surrounds the root portions and distance pieces.
Patent GB-106356-A (GB)
Title: Improvements in Photograph or Picture Frames.
Inventor: RICH HERBERT CHARLES
IPC: A47G1/14
Filed: 1916-07-04
Abstract: 106,356. Rich, H. C. July 4, 1916. Picture and like frames are formed with the back and three sides in one piece of sheet material and the third side removable for the insertion and removal of the glass, mount, and photograph or picture The removable side e is slid into position and has extensions to lie against the sides b, d and back a. The supporting strut i may be hinged to a pivoted plate j having a guide-lug engaging a slot l, so that the strut can be turned to allow the frame to rest on either a long side or a short side.
Patent GB-275293-A (GB)
Title: Improved means for preventing electrical resistances from being overheated
IPC: G05D23/24
Filed: 1926-04-10
Abstract: 275,293. Rheostatic Co., Ltd., and Satchwell, L. April 10, 1926. Protective arrangements.-Electric resistances, for example earthing resistances of supply networks, are protected against excess heating by connecting up three sections of them with an auxiliary section of higher or lower temperature coefficient in the form of a Wheatstone bridge, a cut-out relay being connected across the usual galvanometer connection of the bridge. In the construction shown a section D<1> of the grid resistance is of material of lower temperature coefficient than the remainder. This section is connected up with three ordinary sections to constitute a bridge and the protective relay E' is connected as shown. When the resistance reaches a predetermined temperature, the resulting out-of-balance is adequate to operate the relay and cut the whole resistance out of circuit.
Patent GB-1032201-A (GB)
Title: A valved bag of plastics material with a valve consisting of a sheet folded in the form of a tube and inserted and welded between the opposite sides of the bag, and process for manufacturing same
IPC: B65D30/24
Filed: 1963-03-11
Abstract: 1,032,201. Plastics valve bags. I.C.P.M.- INDUSTRIE CHIMICHE PORTO MARGHERA S.p.A. March 11, 1963 [March 14, 1962], No. 9548/63. Heading B8K. A plastics bag with an infolded corner has a folded valve sheet 5 (Fig. 4, not shown), or tube welded to the bag walls within the bag end closure 7 (Fig. 5, not shown). Another weld 8 welds the two sides of the sheet 5 to the adjacent bag walls and to the infolded corner flaps. The valve member may extend beyond the bag edges and be subsequently infolded or welded to itself after filling the bag.
Patent GB-1491974-A (GB)
Title: Manufacture of aliphatic isocyanates
IPC: C07C241/00
Filed: 1975-03-10
Abstract: 1491974 Aliphatic isocyanates BASF AG 10 March 1975 [11 March 1974] 9834/75 Heading C2C Aliphatic isocyanates are obtained by the thermal decomposition of aliphatic carbamic acid halides in the presence of inert organic solvents, wherein a gas which is inert under the reaction conditions is passed through the reaction mixture during the decomposition and it and the hydrogen halde formed are removed from the mixture.
Patent GB-184831-A (GB)
Title: Improvements in rotary fluid pressure engines
IPC: F01C1/16
Filed: 1921-04-04
Abstract: 184,831. Wagner, G. April 4, 1921. Screw Sprengel pumps.-In a stationary casing 1 a number of drums 2, 3, 4, 5 having expanding helical working spaces are mounted on rotary arms 6 and so geared that each drum rotates about its own axis and at the same time has a planetary motion about the bearings 11, 12. Liquid pistons are admitted to the drums from a pipe 33 and distributor 37, and under the influence of centrifugal force move axially to the outer ends, while the motive fluid, which is admitted to the drums from a pipe between successive liquid pistons and discharges also at the outer ends. The drum 5 is shown adapted for use as a compressor of the same type. Radial partitions 59 are arranged in the helical channels for packing purposes.
Patent GB-526930-A (GB)
Title: Improvements in direct current electric motors
IPC: H02K25/00
Filed: 1939-03-29
Abstract: 526,930. Motors. GENERAL RAILWAY SIGNAL CO. March 29, 1939, No. 9867. Convention date, March 30, 1938. [Class 35] [Also in Group XXVI] In a motor of the type in which a permanently polarized rotor rotates in a rotating field produced by the succession energization of a number of poles the circuits of which are controlled by the rotor the contacts of the circuit control are operated by a cam device on the rotor shaft the position of which is operated by a centrifugal governing device so as to control the speed of the motor. Fig. 2, shows the construction of the motor and Fig. 10 is a circuit diagram. Four poles 18, 19, 20, 21 are provided with windings 22, 23, 24, 25 so connected as to produce a similar polarity. Windings 22 and 24 are connected in series across the supply as are windings 23 and 25. A switch blade 1 can shortcircuit either or neither of the windings 23, 25 through blades 31, 34 and a switch blade 2 either or neither of the windings 22, 24 through switch blades 32, 35; resistances 85, 86 are arranged in parallel with the windings 23, 22 respectively. To the blades 1, 2 are attached pushers 42 pressing against the face of a cam 44 on the rotor shaft 10, the pushers being 90 degrees apart on the cam, the cam 44 can slide longitudinally on the shaft 10 under the action of a pivoted governor weight 46 the motion of which is controlled by adjustable spring 51 and transmitted to the cam by a member 56. In a modification the cam tilts about an axis at right angles to the shaft 10 instead of sliding. Fig. 8 shows a further modification in which the governor rotates the cam with respect to the shaft, so as to alter the angle between the rotor field and the static field. For this purpose the pivoted block 72, controlled by the adjustement spring 74, carries an arm 81 engaging in slot 87 in the cam 78. To prevent irregularaties due to differences in friction between the cam and the pushers as the cam rotates in the same direction as the rotor or the reverse. The cam is provided with a face plate 80, which does not rotate on the shaft with it, but can tilt on the shaft in any direction. The Specification contains a discussion of the action of the motor and control cam.
Patent GB-555710-A (GB)
Title: Improvements in electric switches for motor-driven pumps
IPC: H01H35/00
Filed: 1942-07-16
Abstract: 555,710. Regulating delivery of pumps ; switches held set and freed mechanically. ELECTRICAL APPARATUS CO., Ltd., and WALTON, J. R. July 16, 1942, No. 9892. [Class 102 (i)] [Also in Group XXXVII] In an arrangement wherein a pump is driven by an electric motor and the operation of a valve in one or more delivery lines of the pump also operates a switch to start and stop the motor, the switch has a delayed opening action so that repeated closing or opening of the valve for "topping up" purposes does not cause a corresponding repeated stopping and starting of the motor. The valve is controlled by a pivoted lever (not shown) which also is arranged to actuate two push rods 12, 13, pushing one in while the other is released. The rod 12, when pushed in, turns a bell-crank lever 19 into the position shown in which a contact 30 spring-supported on a horizontally-moving bar 20 engages fixed contacts 29 and the motor is started. The lever 19 is held in the position shown by a latch 23. When the valve is closed, rod 13 is pushed in and the latch 23 released, allowing the parts 19, 20 to move slowly to the left under the restraining influence of clockwork 36, so that the contacts 30, 29 are not opened till after a time interval. An emergency switch 37, 50, adapted to stop the motor by operation of a hand lever 39 projecting from the casing, may also be provided. The lever 39 when moved to the right depresses contact spring 50 and releases contact spring 37 which moves to the left. Resetting can only be effected by removing the cover 41 and actuating a push button 42.
Patent GB-1385866-A (GB)
Title: Pneumatic tyre carcasses
IPC: B29C33/02
Filed: 1973-02-28
Abstract: 1385866 Moulding tyres SEMPERIT AG 28 Feb 1973 [29 Feb 1972] 9894/73 Heading B5A A tyre carcass is vulcanized in a mould 1 of the kind which does not include a bellows for engaging the carcass interior but has a means 2 which forces a tyre bead in position. In order to compensate for the heat which is taken from those sections of the bead contacted by the said means, those sections are of a material which vulcanizes more rapidly than the remainder of the carcass. Such a section may include a layer 5 of a more rapidly vulcanizing material which may wrap around the bead. Alternatively the whole thickness of the bead zone may be of a more rapidly vulcanizing material.
Patent GB-958710-A (GB)
Title: Improvements in baby harness
Inventor: WILLS ARNOLD ROBERT
IPC: A47D13/08
Filed: 1962-03-15
Abstract: 958,710. Baby harnesses. ARNOLD WILLS & CO. Ltd. March 15, 1963 [March 15, 1962], No. 9913/62. Heading A3V. [Also in Division E2] In a baby harness all of the fittings, i.e. buckle, clasp, and connecting elements, are readily detachable from the belt and the shoulder straps or braces, the fittings being attached solely by threading therethrough the various strap elements, so that the fittings are securely attached but may easily be detached. The harness comprises a one-piece belt 1 (Fig. 2) having end parts 1a and 1b detachably connected by buckle 4, through which the end parts 1a, 1b are threaded as indicated in Fig. 6. A rectangular loop 11, pivotally attached by tubular member 11a to frame 5 of the buckle 4 co-operates with the buckle in forming the detachable connection. Braces 2, 3, are connected to the belt 1 by buckle elements 23, comprising integral buckles 24, 25 at right angles, the shoulder strap threaded through buckle part 25. and the belt threaded through buckle part 23 (Fig. 5). The belt may be adjusted at opposite sides through slides 12, strap 1 being threaded through the slide as indicated in Fig. 3, the excess strap length forming loop 1c to which is attached rein attachment fitting 19 comprising a metal loop 20 with a revolvable eye 21 and a spring loop catch 22 which engage with metal eyes 37 or rein strap 36 which is detachably threaded through buckle 38 or with a pram fitting. The harness straps may all be woven rayon or nylon webbing.
Patent GB-1028557-A (GB)
Title: Package coverings with tear means, and apparatus for producing these means
IPC: B65D75/66
Filed: 1964-03-10
Abstract: 1,028,557. Tear means for packages. FR. HESSER, MASCHINENFABRIK A.G. March 10, 1964 [May 27, 1963], No. 9952/64. Heading B8C. [Also in Division B5] Each of two tear lines 4 (Fig. 1), defining a tear strip in a plastics foil package covering, consists of a score line cut into one face of the foil but not penetrating to the other face. Two pairs of such lines may define the tear strip (Fig. 4, not shown) and a reinforcing strip 2 of heat sealable or self-adhesive material may be secured to either the inside or the outside of the package. The tear means may be formed by a machine (Fig. 5, not shown) comprising rollers 6, 7, which draw the material between rotary disc knives 12 mounted on rocking levers 11 and a support 10 which may be a rotating counter roller, the pressure of the knives being adjustable by weights 13 or compression springs. Knives rigidly fastened to the levers 11 may be used, the number of knives depending on whether one or two pairs of score lines are required. The reinforcing strip 2 may be drawn between a roller 15 and a counter roller 16, which is preferably resilient and, if required, heated. Cutaways 5 (Fig. 1) may be provided at one end of the material 1, to facilitate opening the package.
Patent GB-454432-A (GB)
Title: Improvements in or relating to rotary manifolding apparatus
IPC: B41L7/08
Filed: 1935-03-30
Abstract: 454,432. Reservoir pads. RITZERFELD, W., 107, Lutzowstrasse, Berlin. March 30, 1935, No. 9960. [Class 19] [See also Group XVI] Sheets fed to a duplicator from a table 9 are moistened by passing under a pad 3d enclosed in a casing 3 formed with a slot 3<c> or equivalent apertures for the supply of fluid and the admission of air, the latter and therefore the rate of feed being controlled by adjusting a cap 11.
Patent GB-288192-A (GB)
IPC: C04B7/38
Filed: 1928-04-02
Abstract: 288,192. Lellep, O. April 2, 1927, [Convention date]. Rotary furnaces; charging. - In calcining cement the pulverized raw material is granulated by the addition of water in such a manner as to preclude the formation of a thick pasty mass or slurry, e.g. as described in Specification 292,987 and the granules are sintered to clinker in a rotary kiln after preliminary heating by the waste gases from the kiln. The granules are fed on to a travelling grate, or the like 2, through which the hot waste gases are passed either under pressure or, as shown, by the suction of a fan 4 and after their treatment, fall, partly clinkered, down an incline 14 into the relatively short rotary kiln 3 where the treatment is completed. The Specification as open to inspection under Sect. 91 (3) (a) describes in detail the granulating apparatus 1, which now forms the subject-matter of Specification 292,987, and also states that the apparatus without the granulating-drum may be used for calcination of limestone. This subjectmatter does not appear in the Specification as accepted.