baber/WOPTO huggingface dataset:
Patent GB-164475-A (GB)
Title: Improvements in or relating to the regulation of hydraulic turbines
IPC: G05D13/00
Filed: 1920-03-05
Abstract: 164,475. Seewer, P. W. March 5, 1920. Addition to 135,182. Regulating. - In regulating-devices for hydraulic turbines as described in the parent Specification wherein the water jet is regulated by governor-controlled fluid relays B<2>, F<2>, actuating respectively a nozzle valve B and adjustable guidevanes E, E<1> in the nozzle adapted to disperse the jet, a resetting-device is provided for the control valve H of the fluid relay F<2> to secure a more accurate, timing for the return of the guide-vanes E, E<1> to their normal position. As described in Specification 136,176, the governor N controls the relay B<2> through a valve D and controls the relay F<2> through a cataract valve H, H<2> responsive to rapid movements of the governor only. According to this invention, the guide-vane relay F<2> on moving to incline the guide-vanes carries with it a rod F<3> and cam F<4> which engages a roller P<1> and depresses a rod P, thereby re-setting the valve H so that oil can no longer escape from behind the piston F<2>. The valve H, thus reset, continues to descend under the influence of the spring H<1> of the cataract and opens the port communicating with the conduit D<7>. The master-control port D<8> is only opened when the nozzle-valve B has been adjusted or when the speed falls, whereupon oil under pressure is admitted to the relay F<2> and the guidevanes are returned to their normal position. A dash-pot R retards the rising of the rod P under the influence of the spring P<4>. An external device for adjusting the pivoted guide-vanes E. E<1> is also described. Instead of the guide-vanes being pivoted, they may be formed as shown at S<1> in Figs. 2 and 3, and moved axially in and out of a housing A<7> inside the nozzle.
Patent GB-808403-A (GB)
Title: Improvements in or relating to arc welding
IPC: B23K35/36
Filed: 1957-03-01
Abstract: The coating of a ferrous arc-welding rod comprises ilmenite which has been reduced by heating with a carbonaceous reducing agent and at least one carbonate of the group consisting of alkali metal and alkaline earth metal carbonates.  The sulphur content of the ilmenite ore may be lowered by (A) froth flotation to separate the sulphur occurring as pyrites, (B) calcining in an oxidizing atmosphere, (C) partially reducing the ore and then heating in an oxidizing or wet atmosphere, and (D) treatment with dilute HCl.  The reduction is effected by heating a mixture containing by weight, 5-40 parts of carbonaceous reducing agent (e.g. charcoal or petroleum coke) per 100 parts of ilmenite and 4-40 parts of carbonate per 100 parts of ilmenite to a temperature of 1200 DEG C. in a rotary kiln or stationary furnace. The coating may be applied to the rod by dipping or extrusion and may consist of, in per cent by weight, Reduced product (consisting of alkali titanates, titanium oxides, iron oxides and iron) 40-90; CaCo3 4-10; ferroalloy (e.g. FeMn1) 3-8; clay 0-10; wood flour 5-30; sodium silicate 3-9.  The iron content of the product may be reduced by leaching with ferric chloride with or without HCl.  A suitable coating composition then consists of, in per cent by weight, reduced product 50-95; up to 10 per cent of one or more of CaCO3, ferroalloy, clay, wood flour, sodium silicate 5-50.  A fluidifier such a fluorspar may be added to the composition, and potassium silicate may alternatively be used as the binding agent.
Patent GB-1478859-A (GB)
Title: Solid source capable of liberating p2o5 vapour
IPC: H01L21/223
Filed: 1974-06-08
Abstract: 1478859 Aluminium phosphate wafer J D McCALL (Owens Illinois Inc) 8 June 1974 07095/77 Divided out of 1478858 Heading C1A A source of phosphorus dopant for in-diffusing to form a PN junction in a P-type silicon semi-conductor crystal consists of a sintered porous body of aluminium meta-phosphate. By heating in the range 700‹ to 1200‹ C., phosphorus pentoxide vapour is produced which forms a glassy deposit on the silicon substrate. The decomposition rate may be decreased by the presence in the aluminium metaphosphate of a small amount of silica.
Patent GB-122102-A (GB)
Title: Timing Apparatus for use in connection with Vulcanizing and other Processes.
IPC: B29C37/00
Filed: 1918-04-30
Abstract: 122,102. Bates, W. & A., Parsons, I. H., Healey, J., and Ball, A. E. J. April 30, 1918. Short-time movements; electric clocks.-Comprises a dial 2 reading minutes in the counterclockwise direction and a hand 1 which is started from any selected reading and returns to zero in the clockwise direction. Initially a stop 18 for a hidden portion 20 of the hand is inserted against the selected reading and a lever detent 16, 23 is disengaged from a ratchet-wheel 6 by pressing in a pusher 21. A scroll spring 4 then turns the ratchet-wheel till the hand strikes the stop, and on the pusher being released the arbor of the ratchet-wheel is driven either by a mechanical timemovement or by electric impulses from a master clock. In the latter case, the ratchet-wheel is operated by a lever 8 with pawl 7 which is pivoted at 9 between an electro-magnet 11 and a spring 12. The electro-magnet receives current, say, every half minute from the master clock and the spring imparts the driving stroke to the lever when the current ceases. The feed is limited to a tooth at a time by a stop 15 in the path of the pawl, and reversal is prevented by a detent pivoted at 17. The operation winds up the scroll spring.
Patent GB-645056-A (GB)
Title: Improved process of manufacturing magnetic material
IPC: H01F1/34
Filed: 1947-03-17
Abstract: Ferromagnetic ferrites for use as magnetic cores are made by sintering in an atmosphere of oxygen a mechanical mixture of metallic oxides of which the iron oxide content is in the "active" state and free from alkali.  The active oxide, recognizable by its light colour preferably between bordeaux red and orange, is produced by precipitating the hydrate of iron from an iron salt solution for example ferric chloride, with ammonia, and dehydrating the precipitate at a low temperature for example 105 DEG  C., or by heating a solid iron compound such as ferric sulphate to produce ferric oxide, which is then mixed with, for example copper and zinc oxides and sintered at a temperature between 900 DEG  and 1100 DEG  C.
Patent GB-471687-A (GB)
Title: Improvements in and relating to trailers for road vehicles
IPC: B60T7/20
Filed: 1936-03-11
Abstract: 471,687. Trailer brakes. BALLAMY, L. M. March 11, 1936, No. 7371. [Class 103 (i)] [Also in Group XXV] A brake for trailers operated by overrun of the trailer comprises a lever 4 mounted by means of a resilient bush 7 on a spindle 3 mounted on the trailer. The lever 4 is connected to the towbar 8 and by a rod 9 to the trailer brakes. The lever 4 may be biassed by the rubber bush in the brake applying direction.
Patent GB-382196-A (GB)
Title: An improved cup-like wrapping element for sweetmeats and the like
IPC: B65D1/26
Filed: 1932-03-14
Abstract: 382,196. Wrappers ; labels. KENNY, A. and FULLER'S, Ltd., 45, Great Church Lane, Hammersmith, London. March 14, 1932, No. 7545. [Classes 94 (i) and 94 (ii).] A cup-like wrapper a, for sweetmeats &c., is formed with a tab d to facilitate removal of the sweetmeat and to bear an indication of the nature of the contents. The crimping b of the sides may be omitted in the immediate vicinity of the lug, which may be made separately and attached by adhesive.
Patent GB-106004-A (GB)
Title: Improvements in or relating to Circular Latch-needle Knitting Machines.
Inventor: STIBBE GODFREY
IPC: D04B9/00
Filed: 1916-05-27
Abstract: 106,004. Sitibbe, G. May 27, 1916. Circular machines. - Comprises the combination of a circular series of independent latch needles, a corresponding series of sinkers movable between said needles and adapted to sink and measure off the thread for the loops, and a sinker cam adjustable to vary the thread-measuring movement of the sinkers. The sinkers 2, Fig. 5, are slidably arranged and are provided with a butt 17 and shoulder 19 to engage the cams, a front portion 3 to sink the loops, a bulge 20 to support the thread during the sinking movement, and a recess 22 to engage with and hold down the web. The switch cam 4, Fig. 1, is pivoted at 6 to the cup and is adjustable through a link by a lever 8 which is held by a bindscrew 10, and may be furnished with graduations 12 A fixed cam 15 guides the sinkers on to the cam 4 from which they pass to another fixed cam 16.
Patent GB-659275-A (GB)
Title: New or improved means for determining the time of run of power-driven models
IPC: F03G1/00
Filed: 1949-03-22
Abstract: 659,275. Engine stop-gear. TAPLIN, H. J. March 22, 1949, No. 7690. [Class 122(iv)] [Also in Group XXXVII] The time of run of a power driven model is controlled by a spring-driven clockwork train mounted in a casing 12 and adapted to run at a controlled speed and having an arm 25 attached to its winding spindle 14 which when the spring is unwound to a predetermined extent engages a bar 28 movably mounted in the casing and coupled to means for stopping the engine of the model. The train speed is controlled by a vane or eccentric weight carried by the high speed shaft and adapted to be engaged by a stop lever actuated by a finger piece 23. The bar 28 is coupled to a switch 34, which may be in the ignition circuit of a petrol engine, and carries a lug 29 which projects through a slot 30 in the casing into the path of a finger piece 26 on the arm 25 and in the normal outof-use position (Fig. 1) the lug 29 is to the left of the finger piece 26. The spring is wound by clockwise rotation of the winder arm 25 and towards the end of a complete revolution, the finger piece 26. engages the lug. 29 and moves the bar 28 to the right to allow the switch. 34. to be closed: and the engine thereby started; the bar 28. may alternatively be moved to the right by hand. The train is set in, motion by releasing the stop lever and when the spring has unwound a complete revolution the finger piece 26 again engages the lug 29 and moves the bar 28 to the left to operate the switch and stop the engine. The time of run may be decreased by winding the spring through less than a full revolution, the bar 28 being moved to the right by hand.
Patent GB-181785-A (GB)
Title: Improvements in cop and pirn winding machines
IPC: B65H54/14
Filed: 1921-03-11
Abstract: 181,785. Boyd, T. A., Boyd, H. A., and Boyd, Ltd., J. & T. March 11, 1921. Winding-machines; stop-motions; stop-apparatus, non-automatic.-In cop or pirn winding-machines the feeler 16, which is moved by the yarn to effect the building of the cop, is rotated by frictional contact with the stem of the pirn or paper tube. A frictional driver, comprising a disc 17, Fig. 2, with leather facings provided with a central aperture 17<2> of less diameter than the tube, is fitted in a recess 16<3> in the feeler so that, as the spindle is reciprocated by the traverse shalt 9, the feeler is rotated by the engagement of the tube with the disc before it is pressed by the yarn. The feeler carriage 14 moves against the action of a loaded brake lever, and, in order to form the cop bottom, is operated by a wiper 31, Fig. 4, frictionally mounted on a shaft 30 driven through reducing gear from the tin roller shaft. The conical end of the feeler is detachablv connected to the support to enable cops of varying shapes to be wound, and is held outside the ball bearing 15, as shown in Fig. 5, so that a bearing of small diameter may be employed. A lever 26, operated by hand or automatically by a stop-wire 29 on the feeler carriage upon completion, is connected to a tension pulley 23 so that the driving band may be slackened. The spindle is connected by a buckle and pin 8 with a wiper 10 on the traverse shaft. Specifications 8606/84, 3642/11, 23686/11, 22563/12, 26669/13, and 100,100 are referred to.
Patent GB-565610-A (GB)
Title: Improvements relating to hydraulic mechanisms
IPC: F16D48/02
Filed: 1943-05-14
Abstract: 565,610. Hydraulic machines and apparatus. WICKMAN, Ltd., A. C., and BANNING, A. J. May 14, 1943, No. 7727. [Class 69 (ii)] In hydraulic mechanism of the reciprocating plunger type, a valve is opened when the plunger approaches the end of its stroke to admit pressure to a secondary plunger opposing the first, thereby relieving the applied pressure. In a clutch operating mechanism comprising a number of clutch levers A each operated in opposite directions by plungers a, c, secondary plungers g enter cylinders h at the end of the stroke in either direction and valves o are opened by push rods r to admit pressure to the cylinders. Pressure on the clutch levers is thereby relieved. The secondary plungers may be formed separately from the plungers a, c and rigidly connected or linked thereto.
Patent GB-610813-A (GB)
Title: Improvements in or relating to industrial oils and manufacture thereof
IPC: C10G50/02
Filed: 1945-03-27
Abstract: In a continuous process for the production of industrial oils olefins, such as butylene, are polymerized in the presence of a diluent, such as cyclohexane, and aluminium chloride or an aluminium chloride-olefin complex, crude reaction product being withdrawn from the reaction vessel, the used catalyst complex separated from the hydrocarbons which are then washed with acid water and alkaline water and distilled, the whole or part of that distilling below 200 DEG  C. at 20 mm. Hg pressure, the kerosenes, being returned together with fresh catalyst to the reaction vessel.  More diluent may be added with the herosenes.  A reaction temperature between 40-120 DEG  C. is preferred.  The fraction obtained between 150-200 DEG  C. at 20 mm. Hg pressure may be used as a transformer oil, while a drying oil is obtained by hydrolysing the use catalyst complex.
Patent GB-755938-A (GB)
Title: Electric storage batteries
IPC: H01M50/457
Filed: 1953-03-20
Abstract: 755,938. Batteries. SONOTONE CORPORATION. March 20, 1953 [March 21, 1952; March 21, 1952; March 21, 1952], No. 7794/53. Class 53. Electrodes for alkaline accumulators are made by covering a large perforated nickel sheet or gauze 57 with nickel powder and sintering and compressing the sintered sheet along lines 55 where it is to be finally divided into electrodes of the required size. The press which forms the lines 55 also compresses portions 59 which form the corners of the electrodes and to which terminal strips are finally welded. The sheet or gauze 57 may have parts struck up from its surface to form legs to space it from the bottom of the mould in which it is covered on both sides with the nickel powder preparatory to sintering. Before the sheet is divided it is subjected to a second sintering process and is then impregnated under vacuum with a solution of nickel or cadmium nitrate which is converted by electrolysis into the hydroxide. The sheet is washed, dried and electrolytically formed and finally cut into pieces along the lines 55. The edges of the cut pieces are coated with resin or other plastic material to bind any loose particles and cover exposed portions of the metal gauze or sheet. The plastic material may be in the form of a channel which is secured to the edges of the plates by heating or by a cement. Positive and negative electrodes may be separated in the battery by separators as described in Specification 756,018 and the battery container may be as described in Specification 742,193.
Patent GB-877011-A (GB)
Title: Apparatus for use in a vibration testing system
IPC: G01M7/02
Filed: 1959-03-06
Abstract: 877,011. Vibrator current supply arrangemerits. TEXTRON ELECTRONICS Inc. March 6, 1959 [March 10, 1958], No. 7864/59. Class 118. Apparatus for vibration testing comprises a vibration exciter 10 to shake a test specimen 12 and equalizer means 20 to compensate for the gain-frequency characteristic of the exciter 10 and specimen 12 and an X-Y recorder 26 having ordinate and abscissa input channels is provided together with a switching arrangement to obtain a recording of the characteristic and by which the equalizer means 20 can be adjusted with reference to the recording to the inverse of the characteristic. The switching arrangement comprises seven three-position switches 66, 68, 70, 72, 74, 76, 78 all connected together for simultaneous operation. In the first operative position 1 of the switches an input of the exciter 10 is coupled, through an amplifier 16 and a logarithmic potentiometer 22, to the output of a variable frequency oscillator 18. A signal measuring device 28 is coupled to a transducer 14 which provides a signal dependent upon a characteristic, e.g. acceleration of the exciter 10. The recorder 26 has its abscissa input channel controlled by a signal dependent on the frequency of the oscillator 18 and the ordinate input channel controlled by a signal proportional to the logarithm of the output from the potentiometer 22. This signal is provided by a linear potentiometer 46 with its contact 44 connected to contact 24 of potentiometer 22 and with a mid-tap 48 of its resistance element earthed and end terminals 50, 52 connected across a source of selectable polarity comprising a reversing switch 54, a potentiometer 60 and a source 64 of D.C. voltage. The setting of the potentiometer 22 is adjusted by a servo-mechanism 42 responsive to the output of the transducer 14 to maintain the output characteristic of the exciter 10 constant. A motor 30 coupled to the oscillator 18 for varying its frequency throughout a given range is set into operation to plot the gain-frequency characteristic. When the characteristic has been recorded the switches are shifted to position 2 and the reversing switch 54 is thrown. The measuring device 28 is coupled to the output of the oscillator 18 through the equalizer 20, and potentiometer 22, Fig. 3 (not shown). A low.frequency is chosen as a reference, sliders 24, 44 are adjusted by a control 40 until the recorder pen rests on the curve and the reading on the measuring device 28 is noted. The oscillator's frequency is tuned to the first resonant point and the Y deflection is adjusted until the pen is on the curve. The equalizers are adjusted to give the same reading on the measuring device 28 as that noted. This process is repeated at each resonant point until the equalizers are completely adjusted. The switches are thrown to position 3 so that the input of the exciter 10 is coupled in series with the equalizers 20 from which it receives a vibration inducing voltage.
Patent GB-249569-A (GB)
Title: Method for the production of floor coverings
IPC: D06N7/00
Filed: 1926-03-23
Abstract: 249,569. Schneble, K. March 23, 1925, [Convention date]. Continuous flooring; wall and ceiling coverings. -A plastic covering for floors, walls, and ceilings consists of wood fibres or shavings mixed with glue or casein. Colouring matter may be added. To cover a wooden floor, a waterproof coating, such as an oil paint, is first applied, then a coating of cold glue, and the woody mass is spread thereon and smoothed. For a harder layer, a filler such as mineral powder or cement is added. To cover a concrete floor, the cleaned surface is moistened, cement powder is sprayed thereon, and the woody mass is then applied.
Patent GB-249865-A (GB)
Title: Projection apparatus, particularly for illuminated advertisement purposes
IPC: G03B23/10
Filed: 1926-03-24
Abstract: 249,865. Waldmeier, A. March 24, 1925, [Convention date]. Elements moving always in one plane, rotating; optical-projection apparatus, applications of.-Optical-projection apparatus having an exchangeable transparency carrying disc intermittently rotated is operated by a weight and controlled bv clockwork which determines the period during which the illumination functions and the display interval of each transparency. The weight 14, through gearing 15, 19, 20, 21, 22, 23 tends to rotate a disc 17 having circumferential notches 24 which engage pins 25 on the carrier disc 4. Fixed to the shaft 18 of the disc 17 is a wheel 32 gearing with a pinion 31 carrying an arm 29 and a cam 33. The arm 29 engages pins 28 on an escapement wheel 27 of spring-operated clockwork 26, the gradual rotation of the wheel 27 allowing the arm 29 to fly round at intervals through nearly a revolution, and permitting the disc 17 to move the carrier 4. The cam 83 through a pin 34 opens and closes a pivoted shutter 37 to cut off light during charge of transparency. The functioning period is determined by a disc 38 on the hour spindle of the clockwork 26, the disc having twenty-four holes 39 in which two pins 40 can be inserted. The pins 40 at the selected times raise the end 41 of a rocker having projections 43, 44 against which abut two stops 46, 47 on an independently wound spring barrel 51 carrying a semi-circular conducting strip. Brushes in the lamp circuit are electrically connected by this strip or insulated from each other at each half turn of the barrel 51, thus lighting and extinguishing the lamp when required. The lamp, condenser, and reflector are fitted in a casing adjustably mounted on a light shield 57 pivoted at 58.
Patent GB-752267-A (GB)
Title: Electrical power equipment for operating a load or loads
IPC: H02P3/08
Filed: 1954-03-19
Abstract: 752,267. Control of D.C. motors. WELLS, R. Feb. 25, 1955 [March 19, 1954], No. 8092/54. Class 38(3) A shunt-wound motor 1 driving the rolls of a calender 2 has its armature connected to a source of supply, such as a converter, in parallel with the armature of a flywheel machine 1<SP>1</SP> which is also shuntwound. When the ganged contacts 5, 5<SP>1</SP>, of a common field regulator are. in the position shown, the machine 1 runs at maximum speed on weak field excitation whilst the machine 1<SP>1</SP> operates at minimum speed. Upward movement of the contacts 5, 5', decelerates the machine 1 and accelerates the machine 1<SP>1</SP> so that current passes from the motor to the flywheel 'machine. This operation is reversed when the load is accelerated, with the fly-wheel machine acting as a generator to assist acceleration of the load. It is desirable that the fly-wheel machine has a wider range of speed than the motor, and this. is obtained by suitable choice of the field resistors 4, 4<SP>1</SP>. In order to equalize the field time constants, an inductor is connected in series with the field winding having the lower time constant. The circulating current between the two machines may be limited by delaying the movement of the combined field regulator or by the inclusion of additional inductance in the shunt field circuits.
Patent GB-740478-A (GB)
Title: Improvements in or relating to the manufacture of directly heated thermionic cathodes
IPC: H01J9/04
Filed: 1953-03-24
Abstract: 740,478. Cathode materials and processing. M-O VALVE CO., Ltd., and JENKINS, R. O. Feb. 19, 1954 [March 24, 1953], No. 8102/53. Class 39 (1). The adhesion of an alkaline earth metal carbonate coating when produced by cataphoresis is improved by sintering the carbonate in an atmosphere of carbon dioxide, a flux being incorporated which is either an alkali metal (e.g. sodium) carbonate or is converted during the sintering into an alkali or alkaline earth metal carbonate (e.g. strontium nitrate or barium foimate). Thus a tungsten wire coated cataphoretically with a barium-strontium carbonate is passed through a bath of sodium carbonate in distilled water at a concentration of 0.2-5 per cent, preferably 1 per cent. The wire is then passed through an oven at 900‹ C. containing carbon dioxide and cut into lengths for use as directly-heated cathodes.