baber/WOPTO huggingface dataset:
Patent GB-612856-A (GB)
Title: Improvements in or relating to the manufacture of granular phosphatic fertilizers
IPC: C05B19/02
Filed: 1946-05-31
Abstract: <PICT:0612856/III/1> A process for the production of granular phosphatic fertilizers comprises treating cured superphosphate, or double or triple superphosphate, whilst being agitated and advanced, with a substantially non-acid aqueous liquid (e.g. water or an aqueous solution of a fertilizer salt) so that the material is just wet enough to break into small nodules, then introducing into it screening fines, and advancing the product while being tumbled until the screening fines have been largely taken into the nodules but still provide a dusty coating on the surface of the nodules, the amount of said screening fine being at least 50 per cent by weight of the solid originally wetted.  In the drawing accompanying the Provisional Specification, fully cured non-granular superphosphate (and any non-superphosphate constituents desired) pass from smoothing hopper A to conveyer B and a rotary tube granulator D through which hot water passes from pipe C.  Mixer D has internal flapping vanes and fixed spiral vanes.  The amount of hot water is sufficient to transform the solid into small wet nodules which pass to a rotary conditioner F having internal flaps and fixed spiral vanes.  Elevator R, introduces fines from the final granulation.  E is an additional water supply.  The result: mixture and the fines leave F in the form of dusty covered nodules and are agitated in a rotary drier G, whereafter the elevator H lifts them to a rotary cooler J, from which they pass to a mechanically-vibrated screen K (mesh, e.g. 1/8 in. X 1/2 in. side).  Oversize material passes over the screen K to a toothed roller cracker mill L, and thence by chute M to join the material from drier G before being raised by elevator H.  Material passing through screen K falls to a second mechanically-vibrated screen N, which screens the fines on to conveyer belt Q for elevator R.  The final granular product not passing through screen N is passed by an elevator O to a shuttle conveyor P.
Patent GB-1354606-A (GB)
Title: Sampled data numerical contouring machine controller apparatus
IPC: G05B19/414
Filed: 1971-05-24
Abstract: 1354606 Programmed control of machine tools WESTINGHOUSE ELECTRIC CORP 24 May 1971 [22 May 1970] 16601/71 Heading G3N A numerical contouring controller for a machine having at least one member moving along at least two motion axes comprises means for generating a command position trajectory for each axes in response to input numerical data, means for generating velocity feedback data relative to each axis, means for accumulating velocity data into accumulated feedback data, means for sampling the accumulated data and generating velocity commands in response to the trajectories and the sampled data and means for operating the machine member accordingly. As shown, a digital computer 12 is connected in a plurality of control loops 14 for orthogonal machine axes x, y, z and rotational axes A, B. Each loop 14 comprises an outer closed position control loop 16, as shown for the X-axis, and an inner velocity control loop 22. Position feedback to the computer is provided by incremental transducers 28, coupled to the machine members, to accumulating counters 30 which are coupled over a line 32. For use with stepping motors the counters accumulate the motor energizing pulses. Velocity feedback to a summing point 20 for the inner loop is provided from tachometers T; the comparison with the velocitycommanded analogue output of a D/A convertor 18 being used, through an amplifier 24, to control an axis drive 26. Numerical control commands are applied to the computer 12 by a data input 36 under control of hardware interrupt system 36. The input 36 can be a paper or magnetic tape reader or a data link unit providing data flow from a supervisory digital computer 40 having an associated disc store 42. An operator control 44 is provided, together with a display 34 facilities tool selection &c. through an interface 35.
Patent GB-956336-A (GB)
Title: Improvements in materials for forming vesicular images
IPC: G03C5/60
Filed: 1962-05-01
Abstract: Azidocarbonyl compounds of formula: <FORM:0956336/C2/1> wherein Y is hydroxyl or amino or mercapto and X is hydrogen, halogen, hydroxyl, alkyl, alkoxy, aryloxy, acyl or nitro may be prepared by reacting the corresponding hydrazide with sodium nitrite in acid solution or with sodium azide in acid solution.  Compounds so prepared are 2-hydroxy-, 2.4-dihydroxy-, 2.5-dihydroxy-, and 2-amino-1-azidocarbonyl benzene, 1- and 3-azidocarbonyl-2-naphthol, and 2-azidocarbonyl-1-naphthol. This last compound was brominated or nitrated to give 4-bromo or 4-nitro-2-azidocarbonyl-1-naphthol
Patent GB-545430-A (GB)
Title: Improvements in or relating to apparatus for teaching telegraphy
IPC: G09B19/26
Filed: 1940-11-22
Abstract: 545,430. Photo-electric apparatus for teaching telegraphy. CREED & CO., Ltd., THOMPSON, A. E., and SALMON, R. D. Nov. 22, 1940, No. 16800. [Class 40 (iii)] A telegraph signal transmitter for teaching telegraphy comprises centres 1, 2, between which may be mounted a cylinder 5 having telegraph signal marks upon its circumference, and means for optically scanning said signal marks to produce signals. The marks may be on the drum itself or on a sheet wrapped round the drum and may be in separate circles or in helical lines. Several drums with different sets of signal marks are provided. One centre 1 is spring controlled and may be moved out by a lever 3 to permit removal and insertion of drum. The drum is rotated by a motor 20 through worm gear 21, belt drive 22, 23, shaft 8, gearing 7, 6, and centre 2 which carries a dog 4 in engagement with a pin on the end of the drum. The centres 1, 2 and the gears 6, 7 are carried by a frame 10, which can slide endways along the shaft 8 which is splined to. the gear 7 by a groove 9. A lever 12 is pivoted on the frame 10 and is formed with a lug adapted to be engaged with a notch in a rack 13 when the lever is swung in one. direction and with a half-nut adapted to engage a square-section screw thread 11 on the shaft 8 when the lever is swung in the opposite direction. When the rack 13 is engaged by the lever 12, the drum rotates without longitudinal displacement and circular line on the drum is scanned by a photo,-electric device comprising a lamp 15 with a lens system 14 and a photo-cell 18 with a lens system 16 and a light chopper 19. When the half-nut is .engaged, the drum slides along while rotating and a helical line is scanned. The photo-electric cell is connected to a valve amplifier producing two outputs, one a tone suitable for headphones and another a rectified signal for operating relays controlling Morse keys.
Patent GB-616310-A (GB)
Title: Improvements in or relating to apparatus for the manufacture of coal gas
IPC: C10K1/22
Filed: 1946-06-04
Abstract: <PICT:0616310/III/1> <PICT:0616310/III/2> <PICT:0616310/III/3> A process of discharging a catalyst mass from containers of catalytic apparatus for contacting gases with solids wherein said containers are mounted one above the other, consists in disengaging from the main framework of the container the members supporting the floor or floors thereof, thus facilitating the detachment en masse of the catalyst from the body of the container.  In one construction, the container comprises a cylindrical inner wall 1, providing a central gas way and an outer polygonal wall 2, the walls being connected at their upper edges by major beams 4 and secondary beams 5.  To load the container, slings 6 are removably suspended from beams 4 and triangular frames 10 fitted with timber grids 11 are placed around the central tube to form a complete floor, being supported on brackets 7 attached to the slings 6.  The catalyst is filled to the desired level and the upper floor completed in like manner.  Bolts 14 are tightened to tension the outer wall of the container, which is then lifted into position in the contact vessel.  When renewal of the catalyst is required, the container is lifted out and placed on the discharging floor, the pins supporting slings 6 removed and the bolts 14 loosened, when the container shell may be lifted clear, leaving the whole mass with the frames 10 on the ground. Each frame is now lifted from one end by the pin 12, when the spent catalyst falls off and the cycle may be repeated with fresh material.
Patent GB-220286-A (GB)
Title: Improvements in or relating to electric switches for elevator controller circuits
IPC: B66B13/22
Filed: 1924-07-15
Abstract: 220,286. Elevator Supplies Co., Inc., (Assignees of Bassett. C.W.). Aug. 8, 1923, Convention date]. Switches, quick-action.-A lock and switch for elevator doors is constructed so that slight play of the door in locked position due to wear and loose fitting, will not interfere with the efficiency of the switch. The door is provided with a vertically sliding bar 20 carrying the fastener as a right-angled bevelled horizontal projection made of non-conducting material with a metallic roller 18 loosely turning on the pin 30 as shown in Fig. 5. When the door is closed, the bevelled face 53 of the fastening rides up the curved face 56 of the casing 11 of the switch until the shoulder 54 is clear, and then drops by gravity between the spring blades 14, 16 of the switch, fastening the door and closing the switch. The blades 14, 16 of the switch are each composed of two or more laminae riveted together and are secured to an insulating block 2 with a convex base and curved sides. When the door is fastened and the roller 18 is making contact between the blades 14, 16, slight movements of the door do not affect the contact owing to the loose mounting of the roller and the freedom of movement of the block 2 by reason of its shape. The block is secured in the casing by flanges 8 entering grooves 4, 6. Depressions 5 are. formed in the bottom of the block for the heads of the rivets securing the plate, carrying the flanges 8. Grooves 60, 62, 64 in the block between the blades 14, 16 catch metallic particles rubbed off the blades and prevent the possibility of a layer of such particles causing a short-circuit. Blades 50 in the casing 11 guide the fastening into the casing. Release is effected by lifting the rod 20 until the shoulder 54 is clear of the part 56 of the casing, the roller 18 being then also clear of the switch blades.
Patent GB-984690-A (GB)
Title: Improvements relating to method and apparatus for making organic fertilizers
IPC: C05F9/02
Filed: 1961-05-10
Abstract: <PICT:0984690/C1/1> Organic fertilizer is obtained by treating moist solid organic waste material in stages with successive groups or species of aerobic micro-organisms, each of which have different requirements for optimum climatic environment by propagating each of the groups or species of aerobic micro-organisms separately in an individually controlled climate conducive to development, transferring the material to be treated in stages into each of said controlled climates in turn without substantially changing the controlled climates and thoroughly inoculating the transfused material at each stage with the propagated group or species of micro-organisms associated with that stage whilst maintaining the controlled climate in that stage during treatment of the material by the micro-organisms, the temperature and CO2 content at each stage, except the last, being maintained at a higher value than in the next succeeding stage.  The process is preferably effected in a digester 1 comprising a drum mounted on bearing blocks 2 for rotation about an axis 3 which is slightly inclined with respect to the horizon to allow gravity feed of the materisl through the length of the drum. The digester is divided into a screening chamber 18 at the upper end, four fermentation chambers 11, 12, 13 and 14 and a drying chamber 20. Garbage is introduced through a hopper 22 and tailings such as shoes, stones and metal objects collect near the end wall 26 and may be periodically removed through a port 28.  Screened material passes from the compartment 32 to the first compartment of the digester by means of transfer buckets 33 discharge through the bottoms 35 being effected by gravity when the buckets are full.  The four stages may be at 170 DEG , 150 DEG , 125 DEG  and 105 DEG  F. starting from chamber 11, and the requirements of conditioned air may be 5, 10, 15, and 25 cu. ft. per min. per 100 cu. ft. of material in the same order. Up to 50 tons of material may be processed in each chamber in 24-48 hours. Specification 672,913 is referred to.
Patent GB-1467963-A (GB)
Title: Optical projection system
IPC: G02B27/10
Filed: 1974-04-18
Abstract: 1467963 Controlling light PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 18 April 1974 [20 April 1973] 17052/74 Addition to 1160923 Heading G2F In a projection system wherein light from a source 22 is directed by a polarization dependent beam-splitter 124 through a variably birefringent electro-optic target 13 of a cathode ray tube 14 and is reflected back through the target to the splitter 124 so that an electrical charge pattern laid down on the target is converted into spatial intensity variations in that portion of the light directed by the beam-splitter towards a screen 127, a projection objective is provided which consists of parts 125 and 126, part 125 acting as a collimator for light incident on the target and determining the power of the objective, and part 126 being disposed after the splitter and correcting for optical errors introduced by part 125. By this means all the components of part 125 may be of the same material, with a small coefficient of expansion, e.g. SiO 2 , whereby mechanical stress introduced by the heating effect of the light beam do not give rise to appreciable changes in the polarization of transmitted light. Part 126 corrects for colour aberrations and may consist of two crown and flint lens combinations. Since it occurs after the splitter 124, stress induced birefringence is unimportant. It may form a non-focal combination with a magnification of substantially unity. As particularly described beam-splitter 124 is a Wollaston prism and the target is of KDP. In a second embodiment, Fig. 2 (not shown), three tubes 14 are provided for respective primary colour images, dichroic mirrors being provided one between the part 125 and the tube 14 of Fig. 1, and one between part 125 and the splitter 124 for the two respective additional tubes. A further optical element, equivalent in function to part 125 is disposed between the latter dichroic mirror and its tube.
Patent GB-760434-A (GB)
Title: Improvements in or relating to measuring system
IPC: G01F23/26
Filed: 1954-06-10
Abstract: 760,434. Electric measurements. LIQUIDO. METER CORPORATION. June 10. 1954 [June 22, 1953], No. 17071/54. Class 37. Apparatus for determining the weight and volume of liquid in a tank comprises a measuring condenser C20 (Fig. 1) immersed in the tank so that its capacity is a function of the depth of liquid content, and a reference condenser C36 which has the liquid as its dielectric, these capacitors being connected as shown in a bridge circuit which is automatically maintained at balance by the movement of the slider 24a of a potentiometer 24, driven by a servomotor 46 energized by the amplified bridge unbalance current. A mathematical analysis, shows that, by maintaining certain fixed relationships between the circuit capacitors and transformer ratios, a scale 50 associated with potentiometer 24 indicates the volume of liquid, when ganged switches 32, 38 are in the upper position, and, in the other position of the switches, indicates the weight of the liquid, on the basis of a linear relationship between density and dielectric constant. In other embodiments other arrangements for obtaining the required voltage relationships across the bridge circuit components are shown. Specification 745,867 is referred to.
Patent GB-374281-A (GB)
Title: Improvements in or relating to handle bar control mechanisms for motor cycles and the like
IPC: B62M25/04
Filed: 1931-06-13
Abstract: 374,281. Handle-bar control mechanism. BIRMINGHAM SMALL ARMS CO., Ltd., HULSE, F. W., and PERKINS, H., Armoury Road, Small Heath, Birmingham. June 13, 1931, No. 17202. [Class 136 (i).] Handle-bar control mechanism for motor cycles &c. comprises a single attachment clip 1 having a pair of lugs 2 to receive a clamping-bolt 3, whereby it can be adjustably fixed on the handle-bar, which bolt 3 has mounted on its end a disc-type control lever 8 and is also adapted to fix to one of the lugs 2 a bracket 12 to which is pivoted at 15 a lever 13 for actuating a brake, clutch, &c. The base part 6 of the lever 8 and the bracket 12 are mounted on a square or other non-circular part 5 of the bolt 3, the lower edge of the bracket engaging a shoulder 14 on the clip to prevent turning of the bracket 12 and bolt 3. The bracket 12 has a lug 16 to form an abutment for the outer member of a Bowden control, the inner member of which is attached to a lug 17 on the lever 13. The clip 1 has a seating 19 for mounting a switch for an electric horn, dimmer lights, &c. Such control mechanisms may be made as right- and left-hand attachments for each end of the handle-bar, and the brake lever, such as 13, may be provided with ratchet mechanism for retaining the brake in its " on" position.
Patent GB-700405-A (GB)
Title: Improvements in or relating to resilient return mechanisms
IPC: E02F9/04
Filed: 1950-07-10
Abstract: 700,405. Springs. RANSOMES & RAPIER, Ltd., CAMERON, C. M., and BALICKI, F. K. July 10, 1951 [July 10, 1950], No. 17207/50. Class 108(3) Spring return mechanism comprises a resilient member 7, opposite ends of which act on two movable members 9, 10, which normally bear against stops 20 to maintain the member 7 pre-stressed, and a controlled member 24,.25 having lost-motion connections 19, 21 with the movable members 9, 10. The member 7 comprises a torsion bar or tube and is connected by dogs 13, 15 (having no lost motion) to the members 9, 10 at least one of which is also a torsion tube. The tube is journalled in a bushing 8 rigid with a fixed mounting 1. Flanged sleeves 2, 3 secured by bolts 6 to the mounting 1 carry bearings 12 in which are journalled rings 11 rigid with the ends of the tubes 9, 10. The controlled member is in the form of two arms 24, 25 which are journalled respectively on the ends of the tubes 9, 10 and are secured along a dividing line 26. Each ring 11 has two sets of dogs 18, 19 which have lost-motion connection respectively with dogs 20, 21 rigid with the mounting 1 and the corresponding arm 24 or 25 respectively. The lost-motion connections are so arranged that deflection of the member 24, 25 in either direction causes dogs 21 to pick up the dogs 19 on one or other side of the tubes 9, 10 to cause further loading of the torsion tubes 7, 9, 10. The mechanism is initially set by removing the bolts 6 and bolts (not shown) which secure the arms 24, 25. The latter are then drawn into alignment and bolted together thus prestressing the tube 7, and the bolts 6 are inserted and secured. The member 24, 25 may constitute one end of a vertical return arm connected to the foot of the walking mechanism of a drag-line excavator described in Specification 700,406, [Group XXXI].
Patent GB-1298520-A (GB)
Title: D.c. output arrangements
IPC: H02M3/338
Filed: 1970-04-10
Abstract: 1298520 DC-DC converters TELEFONAKTIEBOLAGET L M ERICSSON 10 April 1970 [15 April 1969] 17280/70 Heading H2F [Also in Division H3] A transistor blocking oscillator having an output winding including a rectifier for connection to a capacitor to be charged thereby while the transistor is non-conducting, has a monostable flip-flop in the feedback path which is triggered when the voltage across the feedback winding falls below a given value during the non-conductive period of the transistor and renders the transistor conductive for a period too short to allow the transformer to saturate. A further monostable circuit may be provided to effect starting of oscillation.
Patent GB-530584-A (GB)
Title: Improvements in and relating to the production of titanium pigments
IPC: C01G23/00
Filed: 1939-06-13
Abstract: 530,584. Pigments; alkaline earth metal titanates. DU PONT DE NEMOURS & CO., E.I., June 13, 1939, No. 17323. Convention date, June 15, 1938. [Classes 1 (iii) and 95] An alkaline earth metal titanate pigment is produced by heating and digesting, in an aqueous medium, a mixture of a titanium-oxygen compound and one or more alkaline earth metal hydroxides, or compounds which will form such hydroxides. The use of calcium, barium and strontium compounds is mentioned, and digestion may be carried out at super-atmospheric pressure. The dried product, which may be calcined, consists of one or more alkaline earth metal titanates, with or without a titanium-oxygen compound or an alkaline earth metal compound serving as an extender. Examples are given. Specification 408,710 is referred to.
Patent GB-404974-A (GB)
Title: Improvements in or relating to advertising or display devices
IPC: A47F5/11
Filed: 1932-06-20
Abstract: 404,974. Collapsable advertising models; display stands. WARDLE, A. E., 96, Sampson Road, Birmingham. Juno 20, 1932, No. 17383. [Class 3 (ii).] A collapsable showcard of the kind comprising a cardboard or like sheet scored along three vertical lines so that when the sides of the sheet are moved towards one another the centre scoring moves backwards and flexible or scored sheets secured to the central sheets move forwardly to display in relief a representation of an article, is characterised in that the parts are maintained in the display position by one or more tongues and guides therefor secured to the respective side members of the device, the parts which move backwardly when the device is moved into the display position being apertured so that they can move about said tongue or tongues. As shown in Figs. 1, 2 and 3, the showcard comprising a sheet a, scored at a<1>, a<2>, and a sheet d secured thereto at d<1>, is provided with a tongue b secured at g and extending across an aperture a<3> and through a guide c, a flap b<2> being bent up from the tongue to engage the guide and maintain the parts in the display position. In a modification, Fig. 5, in which shaped or decorative sheets e, f, g are provided, a sheet h, secured at g<2> to the sheet g, slides through the aperture a<3> when the device is opened to the display position to form a shelf or representation of the lid of a tin or the like.