baber/WOPTO huggingface dataset:
Patent GB-143522-A (GB)
Title: Improvements in under feed stoker furnaces
IPC: F23K3/10
Filed: 1920-05-17
Abstract: 143,522. Roach, J. H., (Assignee of Frick, F.). June 21, 1917, [Convention date]. Mechanical stoking; grates. - In an under-feed storing-apparatus, fuel is fed from a hopper 51 by a plunger 43, reciprocated by a steam cylinder 53, to the trough or retort 14 of the grate. A bar 33<1> reciprocates with the plunger, and carries pushers 55 working within the retort 14, and in a lowered portion of the bottom 50 of the throat 49, preventing packing of the fuel in the latter region. The grate-bars 13 are mounted on the grate structure 10 and on the sides of the retort 14, alternate bars being engaged by the flanges 18 of oscillating shafts 16 to give them a reciprocating motion. The shafts 16 are actuated by the plunger 43, through mechanism consisting of toggle links 41, rocking levers 38, and rods 37 engaged by arms 24 on the ends of the shafts, the form shown causing the fire-bars to reciprocate twice to every reciprocation of the plunger 43. In a modified form, the fire-bars move stroke for stroke with the plunger. Dumping grates 15 are provided at the sides of the furnace. The walls 10, 11 of the structure 10 divide the space into compartments into which the forced draught is admitted by sliding dampers 12.
Patent GB-845946-A (GB)
Title: Improvements in or relating to remote control receivers for audio frequency central remote control installations superimposed on a network
IPC: H02J13/00
Filed: 1958-04-29
Abstract: 845,946. Electric selective signalling systems. LANDIS & GYR A.G. April 29, 1958 [May 9, 1957], No. 13569/58. Class 40 (1). As described, in a broadcast control installation, the first five pulse positions g 1  to g 5 , Fig. 1, after a start pulse S 0 , are devoted to a call sign which selects a particular remote field station and prepares it for responding to the following two, 1 and 2, control signals. Subsequent control signals 3 and 4 &c. are effective, in the usual manner, at every field station. Each field station, Fig. 2, includes a call sign recognition device KZ, referred to in the Specification by the synonymous terms mechanical servo-lock and group auxiliary, which is driven by the main synchro. nous shaft a of the field station and has a lever U rocked by a solenoid G by each pulse received by the field station, and which, when it receives the call sign it is set to recognize, closes contacts KZ, thereby preparing the first two contacts 1 and 2 of the synchronous distributer W, for reception of the control signals 1 and 2. The call sign recognition device comprises a circular cam disc SC, Fig. 5, synchronously driven by the main driving-shaft a, Fig. 2, and having five positions each of which, in accordance with the call sign to be recognized is either protruded as at x, recessed as at y, or left at the normal level of the edge of the disc as at Z, a member ph pivoted on a shaft a 2  fixed to a lever U which is rocked by the solenoid G every time a pulse is received, and a contact controlling lever T pivoted on a fixed shaft a 3 . In operation, each pulse received rocks the further lever U, causing the member ph to rock about its arm h. If, when a pulse arrives, the arm h is in contact with the normal level of the edge of the disc SC, as at Z, then the end m of the member ph remains in contact with the bent end q of the lever T and the contacts KZ remain closed (as shown). If, however, a pulse arrives when the arm h is on a protrusion of the disc SC such as at x, then the member ph is moved sufficiently to allow the bent end q of the lever T to engage with a notch n 2  in the end of the member ph, thereby permitting a spring F to rotate the lever T about its fixed axis a 3  and causing the contacts KZ to open, and to remain open for the rest of the cycle. Similarly, if no pulse arrives when the arm h is in a recess in the disc SC, such as at y, then the contacts KZ are also opened with the bent end 1 of the member T locked in a notch n, as shown in Fig. 6. Thus, unless the pattern of pulses received during the first five pulse positions g 1  to g 5 , Fig. 1, corresponds with the way in which the cam disc SC has been shaped then contacts KZ are locked open for the remainder of the cycle. The code disc SC could be constructed with sliding portions appropriately positioned whereby protrusions or recesses can be synthesized at will on its periphery.
Patent GB-810905-A (GB)
Title: Rotary pump or motor
IPC: F04C2/348
Filed: 1957-04-29
Abstract: 810,905. Rotary pumps and motors. RYDBERG, G. E. April 29, 1957, No. 13596/57. Class 110 (2). A variable-capacity pump or motor, Fig. 2, comprises a pumping rotor 36 keyed to an axially-adjustable volume-varying rotor 42, the members 36, 42 being provided with fluid pressure equalizing passages 52, 54 respectively. The rotor 42 is urged to the left by a spring- loaded anti-friction bearing 66 and is urged to the right by a governor 90 responsive to the speed of the rotor 36. The inner race 108 of an anti-friction bearing 106 is secured to a rotary ring carrier 112 carrying a spring-loaded ring 124 which bears against the rotor 42 and constitutes a rotary abutment for the piston-carrying rotor 36. The carrier 112 is driven through a universal joint coupling 128, 132, 138, 140 as shown. In a modification, Fig. 18, applied to a constant capacity motor, the volume-varying means is dispensed with and the pumping rotor 212 is coupled to a combined ring and ring- carrier 254, 256 by a universal joint coupling. The anti-friction bearing 224 and the rotor 212 are based to define, together with a conduit 232, an inlet passage.
Patent GB-555790-A (GB)
Title: An improved cathode-ray tube device for generating high-frequency oscillations
IPC: H01J25/78
Filed: 1941-10-23
Abstract: 555,790. Cathode-ray tubes. PHILIPS LAMPS. Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken). Oct. 23, 1941, No. 13659. Drawings to Specification, [Class 39 (i)] The subject-matter of this Specification is identical with that of Specification 604,249, [Group XL (a)].
Patent GB-811820-A (GB)
Title: Catalytic hydrogenation of acetylene
Inventor: COHN JOHAN GUNTHER
IPC: C07C5/08
Filed: 1957-04-30
Abstract: A catalyst containing 0.001 to 0.035 per cent of palladium on activated alumina is prepared conventionally by contacting certain palladium salts such as Na2PdCl4 in aqueous solution with anhydrous alumina whereby palladium oxide or hydroxide is deposited on the carrier and the oxide so formed is reduced to the metal.  There may also be present in the catalyst as activator 0.001 to 5 per cent of copper, silver, gold, ruthenium, rhodium or iron, which metals are introduced in the same way as the palladium.  The catalyst may be regenerated when necessary by heating in air.  The catalyst is useful in the selective hydrogenation of acetylene (see Group IV (b)).ALSO:Acetylene in the presence of other gases is selectively hydrogenated by reaction with hydrogen over a catalyst comprising 0.001 to 0.035 per cent palladium on activated alumina (see Group III).  The catalyst may also contain as activator 0.001 to 5 per cent of copper, silver, gold, ruthenium, rhodium or iron. Elevated temperatures and pressures such as 85-165 DEG  C. and 250-450 p.s.i.g. and space velocities of 3000-7000 volumes of gas per volume of catalyst per hour are preferred.  The process may be applied to the purification of ethylene containing small amounts of acetylene.
Patent GB-194205-A (GB)
Title: Improvements in or relating to means for moistening paper and the like
IPC: D21G7/00
Filed: 1922-05-16
Abstract: 194,205. Rushen, P. C., (American Coated Paper Co., Inc.). May 16, 1922. Damping fabrics &c. in long lengths. -A web 3 of paper or the like is moistened by a porous flexible wiper 12 which conveys moisture from a container 6. At the point where the wiper passes through the container wall it is subjected to adjustable pressure by a number of plates 14 forced down by screws 20. The amount of moisture conveyed is also regulated by adjusting the area of contact of the wiper and web. For this purpose the container is pivoted in bearings 9 about which it may be turned by means of a wheel 35 and is held in any position by, a ratchet wheel and pawl. Water from taps 25 passes into a tray 26, over a weir 28, and down an incline 29 into the container. A cut-off valve 31 is connected with a spindle of the container so that when the latter is tilted back the water supply ceases. The device is particularly adapted for use with coloursprinkling apparatus, the object being to adjust the supply of moisture to the needs of different portions of the web.
Patent GB-452997-A (GB)
Title: Improvements in electric circuit breakers
IPC: H01H1/60
Filed: 1935-05-11
Abstract: 452,997. Fluid - blast switches. DAVIES, D. R., 14, Ruabon Road, Didsbury, near Manchester, and METROPOLITANVICKERS ELECTRICAL CO., Ltd., 1, Kingsway, London. May 11, 1935, No. 13899. [Class 38 (v)] Contacts.-An arc-control device in or for a circuit-breaker has the housed contact or its associated arcing-member mounted in such a manner as to be readily removable through an opening provided in a side wall of the enclosure of the device and closed by a door which is rigidly secured to said enclosure by means, for example, of set screws. The invention is particularly applicable to circuitbreakers as disclosed in Specification 395,088. The upper metal part 1 has an opening 7 covered by a door 8 which is secured to the part 1 by studs and carries a pivot 12 for the fixed contact 11. A stop 16 limits the movement of the latter under the action of a spring 14, and shunts 15 connect it electrically to the door 8 and thence to the stem 6. Stacked insulating members 2 are provided with passages 3 for the cross-jets of arc-extinguishing fluid. In Fig. 2, the door 8 carries, or is formed integrally with, an arm 22 and arcing ring 21 which is closely adjacent a fixed socket contact in the form of segments 17 pressed radially inwards by springs 19 located between the segments and a ring 20.
Patent GB-169208-A (GB)
Title: Improvements in and relating to systems of electric control for dynamo-electric machines
IPC: B60L7/12
Filed: 1920-05-20
Abstract: 169,208. British Thomson - Houston Co., Ltd., (General Electric Co.). May 20, 1920. Systems for continuous-current motors only.- Regenerative braking arrangements for a set of electric motors. One machine' of the set or a specially provided motor generator is connected so as to excite the fields of all the machines, and the regenerated current is taken back to line through the same resistances as were employed in motoring, the excitation circuit being in shunt to part of the resistance. Mechanical interlocks are provided between the resistance controller; the braking switch, and the reversing switch. One arangement, srown in Figs. 2 and 3, is described in connection with series parallel control of four motors, having armatures A<1> to A<4> and fields F<1> to F<4>. During forward running the motors are grouped first in series, and then in two parallel pairs by means of a set of camoperated contactors 2 - - 16, actuated in common by a drum or the like, and sectional resistances R<1> and R<2> are short circuited in steps by a master controller of the separate contactor type. For braking, by means of movements of the switches 1 - - 16, three of the motor armatures A<1>, A<2>, A<3>, are connected as braking generators in series through part of the resistance to the main, and the fourth armature A<4> is conected so as to excite all the fields including its own F<4>, as shown in Fig. 3. The braking effect is regulated by varying the point at which the excitation loop is connected to the resistance R<2>, this being effected by short circuiting resistance sections in the same manner or when controlling during forward running. The point of connection of the three-armature circuit to the resistance R' remains unchanged, and the included resistance 61 serves to supply a variable voltage drop to the field F<4>, the drop being smaller as the regenerated current is greater, and thus tending to compensate for line fluctuations. The circuit arrangements shown in Fig. 3 may be varied. In other modifications, an extra generator or motor generator is used for the braking field excitation. Controllers, interlocking. - Fig 4 represents the interlock. The master controller MC operated by a handle 41 has a notch 43 and lever 42 interlocking with the reversing switch RS. The switch SS which controls the transition from motoring to braking, has a cam-plate 49 formed with a notch 50 and a bent extension 51 interlocking with two cam-plates 59, 60 on the mastercontroller.
Patent GB-1009595-A (GB)
Title: Improvements in or relating to arrangements for the conversion of a continuous displacement into discrete signals
IPC: G06F7/02
Filed: 1964-04-03
Abstract: 1,009,595. Electric selective signalling. LABORATORIES DE PHYSIQUE APPLIQUEE. April 3, 1964 [April 8, 1963], No. 13943/64. Drawing to Specification. Heading G4H. The invention consists of a position digitizer as claimed in Specification 969,035 which is referred to, provided with relay circuitry to indicate when a predetermined relationship exists between the digitizer reading and a value set-up on decade switches. In the particular embodiment, the fixed contacts of the switches (wiper type) are connected to the indicator lamps of the digitizer and interconnected by diodes, and the indication is given when the set-up value is exceeded. Specification 969,035 is referred to.
Patent GB-475270-A (GB)
Title: An improved apparatus for administering anaesthetics
IPC: A61M16/10
Filed: 1936-05-16
Abstract: 475,270. Anµsthetic apparatus. BRITISH OXYGEN CO., Ltd., and DURANT, C. E. May 16, 1936, No. 13944. [Class 81 (ii)] [Also in Group XXIX] Apparatus for administering gaseous anaesthetic and air comprises a portable casing 1, Fig. 1, enclosing a gas-cylinder 4 connected to a pressure-reducing valve 8 itself connected by a pipe 31 to a chamber 9 enclosing an inhalation-operated valve. A socket 32, adapted to receive a plug connection on flexible tubing leading to the mask, is connected with the casing 9 by a pipe 49 and with a regulatable air inlet 7 by a pipe 60 containing a non- return valve opened by inhalation. The socket 32, air-regulating disc 57, and a gauge 6, are mounted above a panel 61 enclosing the parts connected therewith. The cylinder 4 is held by a spring clip 11 and has a main cock 13 resting on a bracket member 5 secured in the casing 1. The member 5 has upstanding lugs 24, 25, carrying respectively a screw 22, the handle of which may be outside the casing 1, and the gas-delivering pipe 27. The screw 22 has a pointed end engaging a recess on the cock 13 and presses the outlet 28 thereof against a washer 29 on the pipe 27. The spindle 12 of cock 13 has a squared end engaged by a square socket 14 on a resiliently-mounted spindle 15 extending through the wall of casing 1. The spindle 15 has a handle 16 and cross pin 20 which, on retraction and rotation of the spindle, passes through a slot 21 and prevents return thereof. The casing 9, Fig. 4, is in two parts clamping between them a centrally loaded diaphragm 33, movement of which, during suction through pipe 49, is transmitted to a valve spindle 37 having a squared and enlarged end 47 guided in a sleeve 38. The spindle movement opens a spring- pressed plug valve 36 and permits gas, supplied through pipe 31, to pass through a ported sleeve 41 and thence through the sleeve 38. The air-control disc 57, Fig. 5, is rotated by a knob 58 and has an arcuate port 59 regulating the air-inlet pipe 56, itself of arcuate form at its upper end. A disc valve 50 having peripheral notches 51 seats on a flange 52 in the pipe and has a stem 54 passing through a clamped spring blade 55 and surrounded by a coil spring 53.
Patent GB-1152973-A (GB)
Title: Axially Measuring Ophthalmometer
Inventor: WILMS KARL-HEINZ
IPC: B23Q16/00
Filed: 1967-03-28
Abstract: 1,152,973. Ophthalmometers. R. RODENSTOCK. March 28, 1967, No. 14000/67. Addition to 1, 067, 652. Heading G2J. In an ophthalmometer as in the parent Specification, a single test mark 32 having edge markers 33 which define its size and illuminated by a source 2 and condenser 3, is positioned on the viewing axis of the observed eye 1 there being a single collimating objective 5 and half-silvered mirror 51 between the test mark 32 and the eye 1. Rays reflected from the eye 1 are deflected by mirror 51 to the arrangement for producing apparent coincidence of the images of the edge markers, which consists of a mirror 20 reflecting the central part of the beam through an objective 21 to a recombining plate 24 where it meets the remainder of the beam which has passed through the objective 14 having the same focal length as objective 21. Mirror 20 and objective 21 are displaceable perpendicularly to the optical axis of objective 21. For measuring the curvature of a contact lens 42, it is laid on the upper surface of a prism 41 which is slid or rotated into the ray path.
Patent GB-848092-A (GB)
Title: Improvements in adjustable chairs
IPC: A47C1/032
Filed: 1957-05-02
Abstract: 848,092. Adjustable chairs. MOORE, E. R. May 2, 1957 [May 3, 1956; Sept. 17, 1956], No. 14046/57. Classes 52(1) and 52(2) The back and seat of a pedestal chair are connected by links 105, 107 adjustably loaded by a spring 144 to alter the relative angularity of the back and to permit tilting, during which action the back is lowered to a greater extent than the seat. The pedestal spindle 93 extends through an apertured plate 90 with a thrust ring 94, between which and the height adjusting nut 97 a ring 95 of cushioning material is provided which, under pressure, binds the nut 97 frictionally to the spindle to prevent inadvertent height alteration on rotation of the spindle and also absorbs shock.
Patent GB-453181-A (GB)
Title: Improvements in or relating to ribbons for typewriters and the like
IPC: B41J31/00
Filed: 1935-05-14
Abstract: 453,181. Finishing fabrics. BAILEY, H. F., and ELLAMS, Ltd., City House, Harrison Street, Johannesburg, South Africa. May 14, 1935, No. 14151. [Class 42 (i)] [See also Group XVI] Edges, treating.-Typewriter ink-ribbons are prepared by passing a cloth web, before inking, between line-printing rollers 3, which receive a colouring material and a steel roller 2, and the cloth is then slit along the printed lines by knives 7 co-operating with the roller 2 and so adjusted as to slit the cloth without damaging their own edges. The colouring material is impervious to ribbon ink and may contain an adhesive to prevent fraying, and dries and stiffen before the knives 7 are reached. Two sets of rollers may be used to colour the ribbon on both sides.
Patent GB-746844-A (GB)
Title: Improvements relating to tubulous vapour generating and vapour heating units and to the heating of vapour therein
Inventor: EVANS RICHARD HENRY
IPC: F22B21/34
Filed: 1953-05-20
Abstract: 746,844. Water-tube steam boilers. BABCOCK & WILCOX, Ltd. May 20, 1954 [May 20, 1953], No. 14160/53. Class 123(2). A water-tube steam boiler has a furnace 1 lined with steam generating tubes such as 11, 31 extending between lower headers 12, 32 and a steam and water drum 20, the furnace being equipped with pulverised fuel burners 3 and having a gas outlet 15 into a lateral pass 17 in which is disposed a secondary superheater 60 consisting of widely -spaced tube panels 61. The pass 17 leads into a downpass 19 locating a pendant primary superheater 69 and from the bottom of which the furnace gases flow successively upwardly and downwardly through passes 115, 116 respectively locating the tube banks 96, 97 of the convection section of the boiler, the tubes in banks 96, 97 extending from a water drum 55 to drum 20. The lower end of pass 116 communicates with a downpass 120 containing an economizer 121 and an air heater 122. Saturated steam from drum 20 flows into the primary superheater 69, the partially superheated steam flowing through an attemperator 66, for example of the form described in Specification 559,956, to the secondary superheater 60. The unit generates steam at 1600 1bs. per sq. in. and 1000‹F., necessitating a high furnace temperature which, when firing an ashcontaining fuel, results in the furnace gas containing molten fly ash and vapours which condense at temperatures below the range of plastic adhesion temperature of the ash, the condensation range being from 1650‹ to 1200‹F. At the rated load of the unit, furnace gas enters pass 17 cooled to a temperature below the fusion temperature of the ash, the wide spacing of panels 61 preventing bridging by the entrained solids, any deposition on the tubes being removed by soot blowers. The gas leaves superheater 60 at a temperature above 1650‹F. and passes downwardly over superheater 69, leaving downpass 19 at below 1200‹F. Since the gas flow is longitudinally over the tubes of superheater 69, the condensing particles do not impact on and adhere to the tubes but are collected in solid form in a hopper 72 at the bottom of the pass. The superheater surfaces are thus kept effective in spite of the presence of contaminating substances in the furnace gas.
Patent GB-695012-A (GB)
Title: Improvements in or relating to extrusion apparatus
Inventor: ROWLES REGINALD VICTOR
IPC: B29C48/06
Filed: 1949-05-26
Abstract: 695,012. Extruding. FIELDING & PLATT, Ltd. Sept. 8, 1950 [May 26, 1949], No. 14180/49. Class 83 (iv). [Also in Group V] In a method of operating an extrusion press having at least two billet containers 15, 16 from which, in succession, metal is forced through a die 8 by hydraulic rams, the hydraulic pressure medium, during the changeover of extrusion from one container to another is supplied to the rams of the said containers in such a manner that the change in speed of one ram is proportional to the change in speed of the other ram. As applied to a cable sheathing press, chamber 9 is fed through tapering passages 13, 14 which permit ready flow of metal towards the chamber but impede flow in the reverse direction, as described in Specification 479,971. The hydraulic control for the rams may include a change-over valve to divert a predetermined displacement to operate the rams alternately, so that when changing from one ram to another the effect of the pump in the slowing down of one ram is proportional to the increase in speed of the other ram, the rate of flow of the extrusion during the change-over period remaining constant. The temperature of the die box 3 is controlled by the use of known heating or cooling means. Reference has been directed by the Comptroller to Specifications 479,971 and 495,891.
Patent GB-739062-A (GB)
Title: Improvements in or relating to yarn transfer combs for yarn spools for carpet weaving looms
Inventor: TEMPLETON KENNETH GRIFFITH
IPC: D02H13/16
Filed: 1952-06-06
Abstract: 739,062. Combs for tuft yarn spools. TEMPLETON & CO., Ltd., J. May 4, 1953 [June 6, 1952], No. 14298/52. Class 142(1) A comb for retaining tuft yarns in their correct order on a spool comprises a comb 3 with teeth 4 and a U-shaped cover 1 which is deformable as a spring and is secured to the comb by lugs 5, 6. Each lug has a slot 7, 8 to engage an end of the cover and the lug 5 has a projection 9 that engages a slot 2 in one end of the cover. Each end of the cover has a slot 2 so that either end may be fitted to the comb adjacent the lug 5. To fit the cover on to the comb, one end is entered in the slot 8, the cover is pressed down on to the comb and is slid along so that its other end enters the slot 7 and the projection 9 enters the slot 2.