baber/WOPTO huggingface dataset:
Patent GB-306943-A (GB)
Title: Improvements in or relating to train dispatching systems
IPC: B61L19/14
Filed: 1929-02-13
Abstract: 306,943. General Railway Signal Co., (Assignees of Wight, S. N.). Feb. 28, 1928, [Convention date]. Hand levers and hand gearing; indicating movements of trains; miniature signals.-Handlever switches 15 for controlling points and signals, panels 7 forming a model of the tracks controlled. with movable points indicators 46 and holes 53 for insertion of plugs indicating the position of a train, on the main or loop tracks, lamps 12 indicating the position of a train on the points section and lamps 10, 11 indicating the direction of traffic, and switches 14 controlling trackoperated audible signals are all mounted on the upper part of a cabinet 1 fitted with a desk 3 in front; the lower part of the cabinet encloses a panel 60 on which relays 63 and other devices are mounted, this panel being pivoted so that it may be swung outwards so far as is permitted by pivoted slotted links 67 engaging a pin 65 on the side of the panel. The model of the track is built up to correspond with the track by sections or panels 7 in which grooves represent the rails. A points switch is represented by a pivoted triangular member 46 mounted on a pin 47 rigidly with the crank 48 as shown on Fig. 7 which shows the back of the panel. The crank 48 is connected bv a tension spring 50 to a slide 42 operated by the rod 40 from the lever 15. The spring provides a snap action by which the indicator 46 is moved from one extreme position to the other only when the lever 15 is moved to one of its extreme positions but is not moved when the lever 15 is moved to its neutral mid-position. The indicator 46 thus shows the extreme position to which the lever was last moved and consequently the position in which the track-points are set. The hand-lever 15 carries two cams 32 reversely mounted theron, each having a neutral section 32<b>, a high section 32<a> and a low section 32<c>. A roller 31 coacts with each cam and is carried by a spring-pressed rod 29 which operates movable contact-arms 16, 17, 18 adjacent to co-operating contacts 19 - - 22, which are adjustable by screws and lock-nuts to make and break contact at different points in the stroke of the lever. The contacts 19 - - 22 are pivoted on pins 24 and biassed by springs (not shown) against stops.
Patent GB-1090152-A (GB)
Title: Vacuum degassing of molten metals
IPC: C21C7/10
Filed: 1965-02-04
Abstract: A container of molten metal is placed in a vacuum vessel which is then evacuated to less than 20 Torr and the melt stirred electromagnetically using a multi-phase current at a frequency of less than 10 cycles per second.  Initially the stirrer operates at low power, the power being increased during an intermediate state of degassing and increased again during a final stage. These power levels may approximate to 50% of nominal rating, nominal rating, and at least 25% (preferably 70%) in excess of nominal rating, respectively.
Patent GB-176239-A (GB)
Title: Improvements in devices for separating oils and fats and water from cooked vegetables, fish, raw fruit and the like
IPC: B04B3/00
Filed: 1921-02-12
Abstract: 176,239. Wareing, J., and Hill, A., (trading as Aldine Engineering Co.). Feb. 12, 1921. Strainer separators ; casings. - A centrifugal machine for separating oils, fats, and water from cooked vegetables, fish, fruit, &c. has a base a with an upward conical extension c through which the driving-shaft f passes. The casing d has a conical part e, which rests on the extension c and has handles k to facilitate removal. The upper end of the shaft f is slotted to receive a bar i in the tubular portion of the basket g, which is made of wire netting, perforated metal, or the like. The bottom of the basket is also perforated to allow part of the liquid to pass through and to pass down the conical part e. The greater part of the liquid however is removed by centrifugal action. A fly-wheel n is secured to the shaft and a brake shoe o can be forced into contact with it by means of the lever q.
Patent GB-808132-A (GB)
Title: Improvements in the production of polymers
Inventor: WOOD DENNIS GEOFFREY MURRAY
IPC: C08F10/00
Filed: 1956-02-17
Abstract: Catalysts used in the polymerization of styrene (see Group IV (a)) are obtained by mixing, in an aliphatic and/or cycloaliphatic hydrocarbon, a tetravalent compound of vanadium and an organometallic compound of aluminium, gallium, indium, thallium or lead in a molar ratio of less than 1.2:1.  Ingredients specified are vanadium tetrahalides such as the tetrachloride, aluminium trialkyls such as the triethyl, and light petroleum and methyl cyclohexene.  Methanol is used in the examples to deactivate the catalyst.ALSO:Crystalline polymers are produced by mixing one volume of styrene, optionally containing another olefin, with not more than 4 volumes of an aliphatic and/or cycloaliphatic hydrocarbon solvent containing the product obtained from a tetravalent compound of vanadium admixed with an organometallic compound of aluminium, gallium, indium, thallium or lead in a molar ratio of less than 1.2:1.  Catalyst components specified are aluminium trialkyls, e.g. the triethyl, and vanadium tetrahalides, e.g. the tetrachloride, and the optional monomers listed are ethylene, propylene, butene-1, butene-2, vinyl toluene, vinyl naphthalene, allyl benzene, vinyl cyclohexane, butadiene and isoprene.  The solvent may be light petroleum or methyl cyclohexane. The polymerization is preferably in the absence of oxygen and water and may be a continuous process wherein the reaction is stopped by evaporating residual styrene.  In examples styrene and/or solvent are added during the polymerization and methanol is used to terminate reaction and to wash the polymer obtained.  Amorphous polymer is removed by ether extraction.  The products may be moulded, extruded or formed into fibres or films.
Patent GB-580375-A (GB)
Title: Improvements in fastening devices
IPC: F16B37/02
Filed: 1944-03-17
Abstract: 580,375. Fasteners. SIMMONS, J. W. March 17, 1944, Nos. 5027 and 5028. Convention dates, May 4, 1943, and Oct. 15, 1943. [Classes 44 and 89 (i)] Resilient fasteners are made from wire or strip initially of uniform cross section. A base portion is formed to pass the bolt or pin of the fastener which may be screwthreaded, provided with annular grooves or plain. From the ends of the base portion extensions are bent back towards the bolt &c. and are shaped to engage therewith. A length of wire is split centrally and opened out at a, Fig. 6 to pass the bolt and this base portion with extensions a<2> is bowed away from the surface with which it is to contact and towards the ends a<1> formed to engage the bolt and bent back as shown from the ends of the extensions a<2>. On screwing up the bolt, the ends a<1> are forced towards the base causing it to flatten, placing it in tension, and closing in the slit a laterally to grip the bolt. In modifications the centre part of the base is flattened and punched or is formed with a horseshoe-shaped loop, or with a 1¢-turn loop flattened at the point of crossing, to form the clearance to pass the bolt. In another form the wire is flattened and punched centrally at h, Fig. 10, is bent back at the ends of the part h<2> forming arms h<3> flattened, curved and embossed to fit the threads at h<4>, and again bent to form strut portions h<5> engaging recesses in the arms h<3> at h<6>. In a similar form made from strip metal the strut portions are stamped with a stiffening rib and the ends engage behind lugs stamped up from the arms. In a further form the strut portions k<3>, Fig. 16, are bent so as to lie within the arms k<1>, the ends seating in the angle between the arms and the'base k. A further modification is similar to Fig. 16, but the parts k<3> are merely serrated to engage the bolt instead of being also curved to fit it. A further form is serrated over its whole surface, the serrated side of the base being that which engages the plate &c. to be clamped. In another form, holes n<5>, Fig. 20, provide edges with which the threads engage. The strut portions r<2>, Fig. 24, may be bent down parallel to the bolt axis and cut away at the ends r<4> to pass through the clearance space, in the base, for the bolt and abut the plates at r<3>. These ends may have raised lugs engaging other lugs stamped up from the base with a cam action to force the ends into contact with the bolt. Several of the forms may be lined with material such as lead or fibre in which threads are impressed during tightening up.
Patent GB-661473-A (GB)
Title: Improved fungistatic wrappers
IPC: B65D81/24
Filed: 1949-02-24
Abstract: A composition comprising dehydroacetic acid may be applied as a fungistatic agent to regenerated cellulose sheets.  The acid may also be included in a coating composition for, or as an ingredient in, films of vinyl-chloride-vinyl-acetate copolymers, vinylidene chloride copolymers, and ethyl cellulose.  The coating composition may comprise also moisture-proofing, film forming or heat sealing ingredients such as microcrystalline wax.  Dehydroacetic acid has the formula <FORM:0661473/IV (a)/1>
Patent GB-151026-A (GB)
Title: An improved method of and apparatus for forging metal articles
IPC: B21K1/28
Filed: 1919-03-01
Abstract: 151,026. Brindley, H. S. B. March 1, 1919. Wheels; disks; projectiles; pipes and tubes. - Metal articles such as disk wheels, disks, buffers, shells and pipes are formed by forcing the heated metal f from a mould in a radial direction through an annular opening e of small width compared with the diameter of the mould. The operation may take place in several stages, the metal being heated between the stages. The two parts a, b of the die are clamped together by rings c. In making a shell or tube, the material, after passing through the annular orifice, flows over a shoulder on the lower part of the die in a direction parallel to the axis of the mould.
Patent GB-139207-A (GB)
Title: Process and apparatus for unloading ammunition shells and like coverings filled with explosive in the condition of a solid aggregate
IPC: F42B33/06
Filed: 1920-02-20
Abstract: 139,207. Carbonit Akt. Ges., and Schmidt, G., (Assignees of Sprengstoff Akt.- Ges. earbonit). Oct. 28, 1918, [Convention date]. Explosives.-Consists in removing explosive charges from projectiles by means of a jet of hot water. As shown in Fig. 4. the projectile P is inverted over a nozzle 4 at the bottom of a funnel 6 which guides the water and explosive coming out of the projectile down to a trough f disposed beneath a series of such funnels and leading to a settling chamber b, Fig. 6. The molten explosive such as trinitrotoluene is run off from the bottom into receptacles b<3>; and the water overflows through a pipe b<1> to a tank c heated by steam coils c<2>. From thence, the water is forced by a pump d to the nozzles 4 through a, pipe e. When the explosive contains ingredients soluble in water such as ammonium nitrate, it becomes saturated after a certain time and is then run off from the tank c, and the ingredient recovered therefrom. The settling chamber b may also be heated.
Patent GB-487436-A (GB)
Title: Coal feeding device for furnaces
IPC: F23K3/00
Filed: 1937-02-22
Abstract: 487,436. Feeding fuel from hoppers to furnaces ; screw conveyers. KOHOUT, G. A. Feb. 22, 1937, No. 5291. Convention date, March 6, 1936. [Class 78 (i)] [Also in Group XII] Fuel is fed from a hopper 18 arranged at the front of a furnace to a number of inclined passages 149 in the furnace front by a number of screw conveyers 50 arranged at the base of the hopper and within housings 141 having openings 144 at their inner ends communicating with the inclined passages. The conveyer housings are bolted to the bottom of the hopper which is formed by a channel iron 19 and to a plate 26 secured thereto. The conveyers are driven by ratchet gearing enclosed in a casing formed by a hinged plate 27 of the hopper and a hinged plate 34. The ratchet gearing is arranged to drive adjacent conveyers in opposite directions. The actuating rod 87 for the ratchet gearing also, as shown in Fig. 5, 'actuates agitating devices 131, 132 arranged within the hopper. These devices are carried by a longitudinal bar 125 within the hopper and coupled to discs 124 secured to a shaft 117 actuated by arms 116 from the bar 125. As the fuel passes down the inclined passages 149 it is distributed over the furnace grate by an injector device 152, 159 which delivers a mixture of steam and air through a space 150 to meet the falling stream of fuel.
Patent GB-923917-A (GB)
Title: Improvements in or relating to wheel cylinders for liquid pressure operated brakes
IPC: F16D65/22
Filed: 1962-02-12
Abstract: 923,917. Hydraulic brake cylinders. H. TEVES, E. A. TEVES, and M. TAUSEND, [trading as ALFRED TEVES MASCHINENUND ARMATUREN FABRIEK KOMM.- GES.]. Feb. 12, 1962 [Feb. 17, 1961], No. 5300/62. Class 103 (1). [Also in Group XXVI] In a wheel cylinder 1 of an hydraulic motor vehicle brake the piston 2 is packed by a cup packing 6 and, in order to dampen piston vibration, the back of the packing which engages the end face of the piston, or the said end face of the piston, is formed with depressions 7 or studs. The depressions may be in the form of blind holes or concentric grooves.
Patent GB-198047-A (GB)
Title: Improvements in hair curlers and wavers
IPC: A45D2/32
Filed: 1922-02-23
Abstract: 198,047. Sartory, P. Feb. 23, 1922. Hair-curling appliances.-In a hair curler for permanent waving comprising an axis member and a relatively rotatable sleeve, an adjustable friction clip is used to prevent rotation except on the application of a considerable torque. The projecting axis member 1, Fig. 3, has a slotted boss 2 and is secured to one end of a tube 1<a>, and the sleeve comprises a tube 3, rotatable on the tube 1<a> and split at 3<a>. An adjustable screw clip 4 is mounted on the sleeve 3 so that the split end may be controlled by means of the screw 4a to grip the tube 1<a>. A cleat 5 is provided to secure the end of the tress of hair. In the form shown in Figs. 6 and 7, the sleeve 3 consists of a plain tube reduced at one end 3<a> to take into the clip 4 comprised in the projecting boss 2. In a modification of this form, one end of a plain tube 3, Fig. 10, takes .into the clip 4, while its opposite end carries a fixed sleeve 6 to form a stop for a series of independently rotatable sleeve sections 7. Specification 183,502 is referred to.
Patent GB-548884-A (GB)
Title: Improvements in or relating to sifting apparatus
IPC: B07B1/46
Filed: 1941-04-25
Abstract: 548,884. Sifting - apparatus. SPEIGHT, J. April 25, 1941, No. 5389. [Class 117] In sieves having a gyratory movement in a plane, the surface of the sieve 2 of circular elliptical or other round shape is provided with an upstanding wall 10 of spiral form so as to cause the stock to traverse a tortuous path from the centre to the discharge opening 7 at the periphery. The wall 10 is corrugated or provided with projections and is continued by the wall of the sieve frame 12 or a lining thereof of similar formation. Bridging members 14 are provided to maintain the spiral formation and the channel traversed by the stock progressively narrows towards the discharge opening. Specifications 548,881, 548,882 and 548,885 are referred to.
Patent GB-131029-A (GB)
Title: Improvements in and relating to the Production of Nitric Acid.
Inventor: QUINAN KENNETH BINGHAM
IPC: C01B21/26
Filed: 1918-03-27
Abstract: 131,029. Quinan, K. B. March 27, 1918. Nitric acid. - The oxidation and absorption of gases containing nitric oxide is effected in apparatus having a number of permeable diaphragms u p o n which water is held in such a manner that the gas passes through the diaphragms, but the liquid does not, suitably proportioned spaces being provided to allow of oxidation of the nitric oxide between successive contacts with the absorbent. Cooling-devices may be provided for the absorbent and gas respectively, at suitable points of their course. Fig. 1 shows an arrangement of plant comprising absorbers 2, 2<a> - - 2<d>, oxidation chambers 4, 4<a>, 4<b>, 4<c>, and liquid tanks 5, 5<a> - - 5<d> to receive the liquid from the absorbers through coolers 10, 10<a> - - 10<d>, the liquid being returned to the absorbers by pumps 7, 7a - - 7d. The course of the gas is' 1, 2, 4, 2<a>, 4<a>, 2<b>, 4<b>, 2<c>, 4<c>, 2<d>, while the liquid is supplied at 11 to the tank 5 and passes by overflow pipes 11<a> - - 11<d> to the other tanks, and is withdrawn at 11<e>. The construction of the absorbers is shown in Figs. 4, 5, and 6, in which the gas enters at 16 and leaves at 17, while liquid enters at 14 and leaves at 15, so that the gas passes through the perforations in the plates 13 and (in Fig. 5) 13a and through the layer of liquid upon these plates, the pressure of the gas, diameter of the perforations, and depth of liquid being so arranged that the liquid does not percolate through the plates. In the construction shown in Fig. 5, the liquid overflows from the plate 13 to a trap 18, from which it reaches the second plate 13<a>; and in the construction shown in Fig. 6, the liquid from the plate 13 overflows by a pipe 19 to a trap 20, from which it overflows on to the bottom of the absorber. Means, such as 'blocks capable of being raised and lowered, may be provided to allow of closing some of the perforations in the plates. Specifications 25866/98, [Class 55, Gas manufacture &c.], and 12358/04 are referred to.
Patent GB-280765-A (GB)
Title: Improvements in reducing gears
IPC: F16H1/28
Filed: 1927-02-26
Abstract: 280,765. Shillito, B. J. Feb. 26, 1927. Epicyclic gearing.-Epicyclic toothed reducing- gear comprises stepped one-piece planetary pinions 19 gearing with a stationary gear-wheel 6 and with a sun-wheel 18 secured to the driven shaft 3, the wheel 18 being shorter than the planet teeth 19 with which it gears, so that the driven shaft can be adjusted axially. The driving-shaft 5 is carried in the casing 1, to which the sun-wheel 6 is secured, and carries pinions 9, 10 gearing with teeth on the peripheries of the spaced discs 13, 14 which constitute the planet carrier and turn loosely on the shaft 3 and wheel 6. The placet pinions 19 are made small and as numerous as possible.
Patent GB-695366-A (GB)
Title: Improvements in and relating to knives
IPC: B26B9/02
Filed: 1950-03-03
Abstract: 695,366. Knives. DREW, H. Feb. 26, 1951 [March 3, 1950], No. 5462/50. Class 30 The blade of a knife is provided with an interrupted edge consisting of alternating teeth and outwardly directed, curved portions which are bevelled on one face of the blade. As shown, the cutting edge of the blade 10 comprises a number of scallops 11, bevelled at 12, and separated from adjacent scallops by teeth 13, the sides 15 of the teeth having a bevel 16 which merges with the bevel 12. In a modification the scallops may be spaced more widely apart to provide chisel-edged teeth. The scalloped edge is produced by presenting the blade tangentially and at intervals along the length of its edge to the action of the concave periphery of a grinding wheel which grinds the curved, bevelled scallops in the blade for a distance equivalent to the width of the periphery of the wheel, the intervals at which the blade is presented to the wheel deciding the shape of the teeth. The plain face of the grinding wheel is used on the face of the blade remote from the bevel to remove any "fash" from the cutting edge.
Patent GB-285912-A (GB)
Title: Method and apparatus for correcting power factor of electric circuits
IPC: H02J3/18
Filed: 1928-02-21
Abstract: 285,912. Northrup, E. F. Feb. 25, 1927, [Convention date]. Systems for supplying high frequency furnaces; regulation, automatic.-The power-factor of high-frequency induction - furnace circuits having a fixed capacity inserted therein is maintained at a slightly leading or other desired value by the automatic insertion or removal of capacities or inductances or by the adjustment of a variometer, according to the position of the moving member of a phasemeter with fixed or movable coils connected directly or indirectly in the load circuit and to the supply terminals. A resistance may be automatically introduced into the field circuit of a motorgenerator supplying the load each time an impulse correcting for leading current is applied, thus temporarily reducing the voltage of supply. Fig. 1 shows electromagnetic switches 46 controlling banks of condensers 49 which may be placed in parallel with an induction furnace 16 by an arm 39 actuating controlling switches 40 in turn as it is moved in one direction by a motor 31. A motor 25 continuously rotates a cam 23 to oscillate a plunger 22 and under lagging conditions the needle 5 of a phase meter causes this plunger to close intermittently contacts 19, 21 and energize one of two oppositely wound fields of the motor 31, resulting in progressive additions of capacity. Under leading conditions contacts 18, 20 are closed and the capacities are progressively removed but at each impulse a magnet 35 is energized to remove the short circuit on a resistance 53 in the circuit of a field winding 54 on the generator supplying the furnace circuit 14, 15. This may be an auxiliary winding. The reduction of voltage is designed to permit the employment of larger condenser units and to simplify the apparatus. A cam 59 rotating with the cam 23 closes contact 58, 58<1> in the circuit of the coil 35 for a slightly longer period than the closure of the circuit at 18, 20. Series or shunt connected condensers or inductances or combinations thereof may be used to correct the power-factor, or a variometer may be actuated directly from the motor 31. When inductances are used the capacity in circuit may be manually adjusted to produce a normal leading current. To adjust the apparatus for a given power factor the lower contacts 18, 19 may be moved laterally of the needle 5. Specification 289,114 is referred to.
Patent GB-478402-A (GB)
Title: Improvements in or relating to vacuum cleaners
IPC: A47L9/14
Filed: 1937-02-24
Abstract: 478,402. Vacuum cleaners. JACKSON, L. MELLERSH-. (Quadrex Corporation) Feb. 24, 1937, No. 5501. [Classes 8 (i) and 8 (ii)] The elements of a vacuum cleaner are arranged annularly and coaxially, and comprise a motor-blower unit a dirt receptacle 2a with an air duct 2b at the side thereof which leads from the unit to the filter 2 above, as described in Specification 474,877, and a handle 1 secured to the unit which passes slidably through a solid cap 4 secured to the filter, which cap is pressed upwardly by a spring secured to the handle. The handle 1 is surrounded by a fabric, filter sleeve 2 drawn together by a string 3 and clamped in the construction shown in Fig. 1 between caps 4, 5 joined at the top at 6 by spinning. A pin 7 in the handle 1 supports a washer, a spring 8, another washer and a dust-seal felt 6. In the construction shown in Fig. 2, the top may be opened for cleaning or emergency purposes. The fabric sleeve is riveted to a ring 10, and is drawn together by a wire. The inner shell 5, Fig. 3, has depressions 18 which engage depressed areas 20 on the ring 10, Fig. 4. Slopes are provided on the upper sides of the areas which act as threads. On turning the cap 4, 5, the parts engage the opposite sides of the roll of fabric around the wire. A knob 22 on the area 20 prevents accidental opening of the cap.