baber/WOPTO huggingface dataset:
Patent GB-434897-A (GB)
Title: Treatment of lateritic ores
IPC: C22B23/00
Filed: 1934-06-13
Abstract: The nickel content of lateritic ores (oxide ores containing say 1--3 per cent of nickel and 30--60 per cent of iron) is differentially chloridized by a mixture of gaseous hydrochloric acid and water vapour at temperatures mainly between 190 and 300 DEG  C., the relative concentrations of acid and water vapour being controlled according to the temperatures used.  The ore to be treated may be formed into pervious small lumps, be dried and rapidly preheated, and then fed into a vertical reaction chamber and descend in countercurrent to the chloridizing gases.  When the nickel is fully chloridized, trivalent metal chlorides formed may be decomposed by treatment with steam containing a small amount of hydrochloric acid or chlorine, and the temperature be simultaneously raised, if desired.  In examples, operating at temperatures up to about 270 DEG C., the ore is first treated with gases very poor in hydrochloric acid, the concentration of acid then gradually increased to a maximum of the order of 50 per cent, and the chloridized ore finally treated with steam very poor in hydrochloric acid.  Examples are also given illustrating the deleterious effects of preheating the ore too slowly or to too high a temperature and of using concentrations of acid not correlated to the chloridizing temperature.  The chloridized ore, after treatment with inert gas to sweep out free hydrochloric gas if desired, may be leached in countercurrent to bring into solution nickel chloride together with accompanying ferrous and cobalt chlorides, the solution be evaporated, and the chlorides calcined in presence of water to obtain oxides and a mixture of steam and hydrochloric acid for re-use.  Alternatively, the solution may be freed from iron, cobalt, and aluminium by means of nickel hydroxide or carbonate, and nickel chloride be then crystallized out, and used either for preparing other nickel salts or calcined to obtain oxide and gases for re-use.
Patent GB-219161-A (GB)
Title: Improvements in or relating to tripping mechanism for the inking or damping rollers of rotary printing presses
IPC: B41F31/30
Filed: 1923-07-05
Abstract: 219,161. Linotype & Machinery, Ltd., and Dalby, W. E. July 5, 1923. Inking-apparatus; damping-apparatus for lithographic and like machines.-Inking or damping apparatus for rotary printing presses having forme inking &c. rollers normally in contact with a plate cylinder and with distributor drums, is provided with mechanism adapted to trip the forme rollers out of contact alternatively with either the plate cylinder only or out of contact with both the plate cylinder and the distributor drums. The tripping mechanism may also be adapted to move the distributor rollers out of contact with the distributor drums when the forme rollers are moved out of contact with both plate cylinder and distributor drums. The forme rollers 16 - - 19 are supported in bearings on plates 8, 9, 12, 13 adapted to rock about pivots 10, 11, 14, the plates 8, 9 being geared to the others and connected to arms 6, 7 on levers 5 adapted to rock on the shaft 2<a> of the plate cylinder 2. The levers 5 are connected by links 4 to arms 1 fast on the ends of a shaft 3, and one of the arms 1 is connected by a link 20 to the operating lever 21, which is provided with projections 22 contacting with adjustable stops 23 when the lever is in the two-terminal position and with a spring bolt 24 engaging a socket 25 when the lever is in mid position. Movement of the Lever 21 from the position shown in Fig. 1 to. vertical position lifts the forme rollers 16 - - 19 out of contact with the plate cylinder 2, and. further movement of the lever 21 over to the left lifts the forme rollers out of contact with the distributing drums 26, 27 also. The plate 8 has an extension arm 28 connected by a pin and slot. to a link 29 pivoted to an arm 30 of a plate 32 pivoted at 31 and supporting a distributing roller- 33. Two other plates 35, 38, pivoted at 37, 39 and geared together, support two other distributing rollers 36, 40, the plate 35 being connected by a link 34 to the plate 32. Movement of the lever 21 to the vertical position is without effect on the distributing rollers 33, 36, 40 by reason of the slotted connection of the arm 28 with the link 29, but further movement of the lever 21 to the left lifts these rollers out of contact with the distributing drums 26, 27, 41, 42.
Patent GB-587588-A (GB)
Title: Damping device for turbo machine blades
IPC: F01D5/24
Filed: 1944-09-13
Abstract: 587,588. Vibrationdamping devices. AKT.-GES. BROWN, BOVERI, & CIE. Sept. 13, 1944, No. 17520. Convention date, Oct. 5, 1943. [Classes 110 (i) and 110 (iii)] In a vibration-damping device for the blades of turbines, blowers, &c., comprising a wire 1 which fits loosely in holes 2 in the blades 3 and is pressed into frictional contact with the edge of each hole by centrifugal force, the wire consists of two half-round parts, the plane sides in contact of which are perpendicular to the direction of the centrifugal force. The individual parts may be open-ended, and their cutting, points are preferably displaced. The Specification as open to inspection under Sect. 91, comprises also the use of a circular wire consisting of three separate sectorial parts, or of a number of separate circular wires which may be twisted together. The individual wires may be of resilient material and bent in such a manner that they fit snugly in the holes and are supported against one another at points 22 between the holes, as shown in Fig. 7 (Cancelled). This subjectmatter does not appear in the Specification as accepted.
Patent GB-255454-A (GB)
Title: Improvements in hydraulic braking apparatus
IPC: B60T13/22
Filed: 1926-07-13
Abstract: 255,454. Charles, M. July 16, 1925, [Convention date]. Fiuici-pressure; band.- A brake is maintained disengaged against the pressure of a spring n by the pressure of a, liquid in a cylin. der i maintained due to the thrust exerted on a piston rod of a piston c' by an articulated mechanism actuated by a spring v, the articulated mechanism being connected at t by a cable u passing over pulleys x to a brake pedal a. The articulated mechanism comprises rods s connected at t and to levers p arranged so that the rods are in alignment and buttressed one against the other when the brake is disengaged. The piston rod of the cylinder : i in the brake drum makes contact with a brake jaw f against the action of the spring n bearing against a stop o. Pressure is reduced in the cylinder i when the piston c<1> in a cylinder d<1> is moved to the left on release of the pressure of the articulated mechanism by operation of the pedal a. A movable disc m<2>, open to the atmosphere on its outer side through an opening m<3> allows variations in volume on the inoperated side of the piston c<1> due to its movement in the cylinder d<1>. A disc p<3> adjusted in position by a screw p<2> regulates the pressure in the cylinders d<1>, i. Bellows are provided between the pistons and the ends of the cylinders d', i and between the discs m<2>, p<3> and the casing to ensure a. fluid-tight joint. To compensate for differences in pressure between the ends of the cylinders d<1> which mav occur while the brake is inoperative a clock valve c<3> is provided communicating by passages c<4> with the end w<1> of the cylinder when the piston moves a sufficient distance to the left. Two cylinders d', d<2> are provided in order to operate both the back and the front wheel brakes of the vehicle and these cylinders are both operated by the pedal a.
Patent GB-200521-A (GB)
IPC: H02G15/14
Filed: 1923-07-06
Abstract: 200,521. Felten & Guilleaume Carlswerk Akt.-Ges. July 6, 1922, [Convention date]. Inductances.-To enable a cable loaded with Pupin coils to run freely over the drums, the casing c fitted over each coil box or junction sleeve a is shaped to conform to the periphery of the drum, and the cable b is provided with a tapering cushion d. The coils are relieved of the pull on the cable by bending back the outer wires e of the cable end over a conical member f upon which a conical member g is slid and clamped by a screw h. The casing c is preferably formed in two parts connected by screws i as shown in Fig. 2.
Patent GB-851446-A (GB)
Title: Improvements in or relating to trolleys
IPC: A61B6/04
Filed: 1957-06-04
Abstract: 851,446. Surgical beds. AUTOSET (PRODUCTION) Ltd., TOWNSEND, C. M.. and ELLIS, F. Sept. 4, 1958 [June 4, 1957], No. 17642/57. Class 52(2) A surgical bed or table has a framework of members 5, 6 forming a trolley mounted on castors 7 provided with brakes operated by cables 8 and lever 8a, the trolley being rotatable about a fixed point by power operated means consisting of an electric motor 29, reduction gearing 31 and an output shaft 32 coupled by a clamp 35 to a member 6. The trolley has a fixed foot platform 10, a shoulder support 12 for lying patients and an upright supporting structure 15 with portions 19 to support a patient under the arm-pits or support his head, nylon net 21 forming a back-rest. The platform 10 supports the lower end of a pillar 23 carrying a vertically adjustable saddle type seat 24 or a flat seat 24a. The horizontal framework also carries a folding couch 26 consisting of flaps 27 hinged end to end.
Patent GB-135891-A (GB)
Title: Improvements in Compensated Pendulums.
Inventor: JOHNSTON CYRIL FREDERICK
IPC: G04B17/22
Filed: 1918-10-29
Abstract: 135,891. Johnston, C. F. Oct. 29, 1918. Pendulums. - The rod A is made of a material such as invar which has such a slight coefficient of expansion for temperature, as usual, that, if the bob B rested by its edge or periphery on the period-adjusting nut, its reverse expansion would be excessive. The nut F is accordingly put within the bob at a calculated distance below the centre of gravity. The bob is preferably of lead or antimony and has a central vertical slot D so as to leave all the rod exposed.
Patent GB-244666-A (GB)
Title: Improvements in water-tube boilers
IPC: F22B21/00
Filed: 1925-07-10
Abstract: 244,666. Buchli, J. Feb. 9, 1925, [Convention date]. Water-tube boilers; fireboxes. - A water-tube boiler for locomotives is provided with flat iron bars welded to the tubes to keep them rigid. The tubes 2 3 are of inverted U-shape, and bars 4, parallel to the drum 1 are welded to them. The bars may be provided with bolts or brackets to which insulation 5 and a sheet metal cover 6 may be secured.
Patent GB-1159151-A (GB)
Title: Improvements in or relating to Continuous Polymerisation of Polyamides
Inventor: CARTER JOHN ANTHONY
IPC: C08G69/04
Filed: 1966-04-22
Abstract: 1,159,151. Polyamide preparation. IMPERIAL CHEMICAL INDUSTRIES Ltd. 7 April, 1967 [22 April, 1966], No. 17729/66. Heading C3R. Polyamides of fibre-forming molecular weight are prepared by a continuous process wherein a salt of a diamine and a dicarboxylic acid, an aminocarboxylic acid or a lower molecular weight polymer thereof is subjected to polymerization temperatures in an elongate reaction zone whilst maintained in a state of annular flow by means of a rapid current of inert gas. The cross-section of the elongate zone, which may be a straight or coiled tube, may increase, progressively or in steps, but must not decrease from the inlet to the outlet. Specified inert gases are nitrogen, argon and hydrogen. Numerous polyamides are mentioned; in examples the process is applied to (1) 66 salt plus excess diamine; (2), (4), (5) and (8) 66 polymer of R.V. 50 or 48; (3) 66 polymer of R.V. 40 plus acetic acid viscosity stabilizer; (6) 68 polymer of R.V. 55; and (7) 66 salt containing Cu borate and KI.
Patent GB-515284-A (GB)
Title: Improvements in or relating to the securing of tubular members in apertures or the like
IPC: F22B37/10
Filed: 1938-06-14
Abstract: 515,284. Pipe joints. THOMPSON WATER TUBE BOILERS, Ltd., J., and PLUMMER, G. A. June 14, 1938, No. 17735. [Class 99 (i)] A tube 1 is connected to a plate or another tube by a ferrule 4 which screws into the end of the tube and expands a ring 5 into contact with the sides of the opening 2a. The ring has an inclined slit 5b and the ring and tube have complementary conical surfaces. The ferrule may have a ring-engaging conical surface in addition to or instead of that of the tube.
Patent GB-416301-A (GB)
Title: Improvements in or relating to punching and countersinking machines
IPC: H03G3/22
Filed: 1934-06-15
Abstract: 416,301. Punching and countersinking. PRESSED STEEL CO. OF GREAT BRITAIN, Ltd., Cowley, and TRIBE, T. F., Markenfield, Quarry Road, Headington, both in Oxford. June 15, 1934, No. 17739. Addition to 399,981. [Classes 83 (iii) and 83 (iv).] In a combined punching and countersinking machine as described in the parent Specification, a motor-driven shaft 28, preferably through a universal j oint 27, rotates a shaft 21 carrying the tool 44 and worm gearing 24 which drives a cam 31 actuating a follower 32 guided in a bush 35 and connected to a lever 23 for effecting axial reciprocation of the tool shaft 21. The combined punching and countersinking tool 44 co-operates with a die 43 secured by a bolt 42. In a modification, Fig. 5 (not shown), the shaft 21 is driven by bevel gearing through a clutch from an electromotor carried by an extension of the framing 12.
Patent GB-955621-A (GB)
Title: Machine tool turret indexing mechanism
IPC: B23Q16/10
Filed: 1961-05-16
Abstract: 955,621. Lathe tool turrets. WARNER & SWASEY CO. May 16, 1961 [May 27, 1960], No. 17784/61. Heading B3T. Turret indexing mechanism comprises drive means sequentially operating to release clamping means for the turret, to move the turret axially from its base and to rotate the turret. The four-position turret 14, Fig. 2, carrying tools 13, is indexible on a cross-slide 16 by pressbutton switches (not shown). The turret is supported for rotational and axial movement by a central post 30 which is adjustably secured to the turret. Interengaging toothed rings 35, 36, are secured to the turret and crossslide respectively, to secure the turret in its indexed positions. The turret is drawn down to lock the rings 35, 36 in mesh by means of a pair of wedge-toothed rings 39, 40, the former secured to the turret and the latter rotatable about a bush 33. The ring 40 is rotated to and fro through a small angle to clamp and release the turret by a cam 48, Fig. 3, secured to a shaft 50 which engages between arms 45, 46 integral with the ring 40. The shaft 50 carries a worm wheel 55 rotated by a worm 54 on a shaft 53 driven by an electric motor 15 through an electromagnetic brake 56. The shaft 50 also carries at its lower end an arm 72 with roller 80 for operating a pair of Geneva wheels, Fig. 4, secured to the turret and a switch control shaft 91 respectively. The upper surface of the arm 72 is provided with wedge faces 70, 71, which engage with a bevelled part 41, Fig. 2, of ring 39 to lift the turret, when released to separate the locking rings 35, 36. Cams 93-95 are provided on the shaft 91 which operate switches 96-98 to condition circuits for the automatic indexing of the turret when the appropriate press switches are operated.
Patent GB-584532-A (GB)
Title: Improvements in instruments for calculating variations in the altitude of the sun
IPC: G06G1/00
Filed: 1944-09-19
Abstract: 584,532. Calculating - apparatus. DAHLBERG, O. Sept. 19, 1944, No. 17900. [Class 106 (i)] An instrument for calculating the altitude of the sun at various latitudes on various dates comprises a disc 2 provided with latitude scales 5, 6 and date indicators 9, 10, the disc being rotatable on a base plate having sunaltitude scales 7, 8, date scales 11, 12 and lines 13 representing the sun's direction. An arm 3 is rotatable about the centre of the disc 2 and carries a protractor-like scale 4 at its end. The disc 2 is set so that the dateindicator 9 or 10 shows the date on the scale 11 or 12 and the arm 3 is adjusted to.the latitude on the scale 5, 6. The altitude of the sun is the angle between the base line (horizontal plane) of the protractor 4 and the protractor radius extending parallel with the sun-direction lines 13, this angle being read on the protractor.
Patent GB-998743-A (GB)
Title: A process for recovering pure cyclohexanone oxime
Inventor: RUNGE WALLACE FRED
Filed: 1963-05-07
Abstract: Cyclohexanone oxime is recovered from mixtures also containing cyclohexylamine and cyclohexanone by adding an aliphatic hydrocarbon having 5 to 10 carbon atoms or cyclohexane in amounts not less than 1-2 parts by weight per 3 parts by weight of cyclohexanone oxime, heating the mixture to dissolve the oxime but below the boiling point of the hydrocarbon, maintaining the temperature and adding at least 1 part by weight of sulphuric acid per 2 parts cyclohexylamine to form a hydrocarbon insoluble salt, separating this from the mixture and then cooling to obtain substantially pure crystalline cyclohexanone oxime.  Water may also be added with the hydrocarbon so that the final water content of the mixture is not less than 5 to 10 parts by weight of cyclohexylamine. Before addition of sulphuric acid, not less than 5 parts by weight of hydroxylamine sulphate per 6 parts cyclohexanone may be added.  The operating temperature is preferably from 50 DEG  to 60 DEG  C.  Reference has been directed by the Comptroller to Specification 936,371.
Patent GB-313501-A (GB)
Title: Improvements in asynchronous electric motors
IPC: H02K17/30
Filed: 1929-06-12
Abstract: 313,501. Pedrazzo, G. June 12, 1928, [Convention date]. Alternating-current induction machines; motors. controlling.-An asynchronous motor has a main inducing or primary winding and one or more minor primary windings all arranged in the same manner with regard to the magnetic field and the ends of the phases are brought out to a connecting device so that all the phases of the main and minor windings can be connected in series with one another or the minor windings can be cut out of circuit in accordance with the load for which the motor is to be adapted. In the example shown in Fig. 1 a three-phase asynchronous motor is adapted for three powers, and the stator comprises main and minor windings 17, 18. The ends of the winding sections of the mains 10, 11, 12, are connected to the correspondingly numbered terminals of a controller, Fig. 2. In the position I of the controller intended for low loads, the two windings are in series and the whole in star connection. In the position II for intermediate loads, the auxiliary winding is cut out and the main winding is star-connected. In the full-load position III the two windings are in series and the whole delta-connected. Fig. 3 shows the winding arranged for four poles. The main winding may be arranged at the top of the slots and the auxiliary winding at the bottom, a layer of insulation being interposed. The winding ends 1-4, 2-5 and 3-6 may be connected permanently. Specification 294,563 is referred to. According to the Specification as open to inspection under Sect. 91 (3) (a) the ratio of turns in the main and auxiliary winding may be 2.25 : 1. and the ratio of the wire section 1.53 :1. This subject-matter does not appear in the Specification as accepted.
Patent GB-219981-A (GB)
Title: Petrol and like filter
IPC: B01D29/23
Filed: 1924-07-29
Abstract: 219,981. Tecalemit, Ltd. Aug. 3, 1923, [Convention date]. Filters having sheet filtering - materials; filters fitted in pipes.-A petrol or like filter is provided with a removable member adapted to be connected between the ends of an existing union and having passages opening to the two sides of the filter. This member may take the form. of a tube b the ends of which are respectively connected to the supply pipe and to the carburettor, the tube being plugged in the middle. The tube fits into a bore in the upper part a of the filter body. The filter is formed of chamois leather i on a helical or spiral wire j held 'by an eyelet k in the central orifice of a washer h which makes joint between the part a and a sump g which is preferably of glass. Petrol entering through a passage n passes downward through apertures l in the washer h, and after filtering through the chamois leather leaves through a central conical tube a<1> and a nozzle m. Water and other impurities collect in the sump g. Specification 195,200 is referred to.
Patent GB-756559-A (GB)
Title: Improvements in or relating to eyelets
IPC: B21D53/46
Filed: 1953-07-01
Abstract: 756,559. Eyelets. TUCKER EYELET CO., Ltd., G., CURTIS, J. W., and HENSHAW, J. N. June 30, 1954 [July 1, 1953], No. 18,194/53. Class 89 (1). [Also in Group XXII] An eyelet comprises a barrel 101 with an annular head 103 having an internal projection 157 which acts as a seating for a celluloid cover 159, and the tail end of the barrel is reduced in diameter at A to be identical with the internal diameter of the ridge 157. Specifications 13084/99, 720 A.B.C./07, [both in Class 83 (iv)], and 737,161, [Group XXII], are referred to.
Patent GB-569877-A (GB)
Title: Improvements in or relating to stop-motion and pressure release mechanism for rollers of wringing and other machines
IPC: D06F45/18
Filed: 1942-12-22
Abstract: 569,877. Wringing machines. SUMMERSCALES, W. H. G., HOLMES, W., and HOLGATE, B. R., (trading as SUMMERSCALES SONS, W. & S.). Dec. 22, 1942, No. 18217. [Class 138 (ii)] In a wringing machine with two rollers arranged to have the motion arrested and the pressure between the rollers released when the rollers and coacting parts are moved bodily by the operator, the head 3, housing the driving gears, is pivoted on a carrier 4 having a spring- pressed positioning stud 6 and a catch lever 9 for locking the machine in working position by engaging slots in a collar 10 on the machine frame. The carrier has a slot 11 to engage a cranked spindle 12 having a cam 13 at the upper end to engage a bar 14, which operates a bar 15 having notches or hooks 16 to engage pins 17 on the hinged top 18 of the roller housing. Thus, if the hand of an operator is caught between the rollers, a pull or push on the rollers rocks the head round to turn the crank spindle 12 and release the top 18 and free the spring 19 from pressing the rollers. The bar 14 may also be adapted to engage a cam 20 to throw the driving clutch 21 out of engagement with the bevel gear driven by the power shaft 24.