baber/WOPTO huggingface dataset:
Patent GB-207593-A (GB)
Title: Improvements in or relating to valves
IPC: F16K31/50
Filed: 1922-08-25
Abstract: 207,593. Castle, J. P. Aug. 25, 1922. L i f t valves; actuating- mechanism.-A lift valve 1 supported by a spring 5 bearing against a collar 3 is actuated by a spindle 10 acting through a weaker spring 9. The spindle 10 is moved by a cap 11 screwed on to the casing and provided with a circumferential scale adapted to co-operate with a longitudinal scale on the casing in a similar manner to a micrometer scale. With this arrangement a determined amount of movement is imparted to the valve 1 by a greater longitudinal movement of the spindle 10.
Patent GB-480687-A (GB)
Title: Improvements relating to fluid pressure flap-operating devices for aircraft
IPC: B64C13/00
Filed: 1936-08-22
Abstract: 480,687. Control transmitting mechanism for aircraft. DOWTY, G. H. Aug. 22, 1936, No. 23159. [Class 4] [Also in Group XXIX] In a flap-operating system for aircraft in which a jack is operated in one sense by positive fluid pressure, a pressure accumulator is provided having permanent fluid connection with the jack, adapted, also, to receive fluid against resilient resistance and is arranged in parallel with the jack. As shown, a reservoir 1 supplies pressure fluid to an engine-driven pump 2 and thence through a control system, e.g. as described in Specification 480,674 to one or other side of a double-acting flapoperating jack or jacks 3 through one or other of pipes 4, 5. An accumulator 7 having a free piston 8 is inserted in the pipe line 4 which is the supply during extension of the jack. The cylinder on the side of the piston opposite the fluid is provided with a union 10 through which the pressure of the air in the right-hand end of the cylinder may be varied. A spring or other resilient means may act on the piston.
Patent GB-461626-A (GB)
Title: Improvements in or relating to telephone systems and apparatus therefor
IPC: H04M1/215
Filed: 1935-08-19
Abstract: 461,626. Substation circuits. SHIPTON, E. Aug. 19, 1935, No. 23230. [Class 40 (iv)] In a substation comprising an amplifier associated with the microphone, means is provided for sending constant-volume signals over the line in spite of varying intensity at the microphone due, for example, to movement of the speaker. Similar control may be employed at the receiving end to give constant volume from a loud-speaker. In the system shown, an extra microphone M and the loudspeaker S together with the amplifiers A1, A2, Fig. 1, are associated over a receiver R and a microphone or inductive coupling P with the ordinary handset H which for this purpose is placed on a special stand containing a switch to control the amplifiers. For use with receivers having differently-arranged windings, the polepieces of the pick-up coil P may be arranged obliquely and to overlap as shown in Fig. 2. The microphone M forms an arm of a bridge network, Fig. 3, associated through a transformer T1 with an amplifying valve V1 feeding the receiver R. The microphone is fed by the anode current of a valve V4 and to provide a constant-volume output from the microphone, part of the output of valve V1 is tapped off through a potentiometer P1, rectifier 3 and smoothing and time-delay circuit 4 to the grid of valve V4. A similar connection from the second valve V3 of the receiving amplifier to the grid of a valve V5 varies the shunting effect of the transformer T5 on the pick-up coil P, to give a constant-volume output in the loud-speaker S. Further similar connections from valve V1 to the grids of valves V2, V3 and from valves V2, V3 to the grids of valves V1, V4, respectively, prevent the transmitting and receiving paths from being both operative at the same time. Two balanced microphones in push-pull relationship or a moving-coil microphone may be employed. Specification 343,625 is referred to. '
Patent GB-955091-A (GB)
Title: Improvements in or relating to straight bar knitting machines
Inventor: WINFIELD DENNIS
IPC: D04B15/00
Filed: 1959-07-07
Abstract: 955,091. Knitting-machines. WILLIAM COTTON Ltd. July 4,1960 [July 7,1959], No.23230/59. Heading D1C. A straight-bar machine is provided with mechanism to enable either a preformed rib portion of fabric to be transferred to the needles or a turned welt to be produced on the machine prior to knitting a fabric blank. In the case of transferring a preformed rib portion to the needles a conveyer is provided on the machine and comprises an endless chain 11 extending completely around the machine and adapted to be driven past a loading station at which point transfer bars 16 containing preformed rib portions of fabric are mounted on to the conveyer, there being a number of positions on the conveyer for mounting the bars corresponding to the number of divisions of the machine. The mountings for the bars comprise plates 15 secured to the chain 11 by guided runner units 13 and which are recessed to receive the point bars 16. After loading the point bars on the conveyer, the conveyer is moved to position one point.bar opposite each division of the machine in which position the bar is supported by the plates 15 above guide arms 1 at each side of each division of the machine. The arms 1 are pivotally mounted at 3 and are pivoted by mechanism operated from the main cam shaft which causes them to rise such that rollers 17 on the point bars are engaged in guide grooves 2 in the arms 1 and simultaneously lift the point bars from the recesses in the plates 15 so that they are detached therefrom. Fork members 6 under the control of mechanism 8 operated from the main cam shaft are then advanced to engage pegs 18 on the point bars and hooks 7 close on the pegs to secure the bars to the forks 6. The forks are advanced so that at the end of their traverse the point bars tilt until they are in somewhat vertical alignment with the needles in which position the rib portion is transferred from the points to the needles. On retraction of the forks 6 the point bars are returned to their position above the plates 15 after which the arms 1 are lowered to enable the point bars to re-engage in the plates. The conveyer is then returned to its preloading position for removal of the empty point bars prior to re-loading the conveyer with a further number of fabric portions. Knitting proceeds by knitting a fabric blank on to the preformed fabric portion. The welt bar may be accommodated to enable a turned welt to be knitted prior to knitting the remainder of a blank on the machine.
Patent GB-1526917-A (GB)
Title: Digital fsk demodulator
IPC: H04L27/156
Filed: 1977-06-02
Abstract: 1526917 FSK demodulators INTERNATIONAL STANDARD ELECTRIC CORP 2 June 1977 [10 June 1976] 23434/77 Heading H4P A digital FSK demodulator comprises a first, second arrangements 5, 6:7, 8 producing respective in-phase and quadrature representations of a reference signal at an angle A, and an FSK signal at an angle B, a third arrangement 12 producing an in-phase and quadrature code signals for estimating the value of (B-A), a fourth arrangement 13-15 for determining whether (B - A) is increasing or decreasing, a fifth arrangement 16, 17 determining whether a first given code is detected more frequently than a second given code and vice versa and an averager 18-20 averaging the difference between the codes to produce a first or a second voltage for "mark" and "space" frequencies respectively. The delta modulators 5, 7 converting the input analog signals to digital form may be as in Fig. 2 (not shown) and including an amplitude comparator, a D type flip-flop and a low-pass filter in a feed-back arrangement.
Patent GB-241000-A (GB)
Title: Improvements in steam pressure sterilizers
IPC: A61L2/06
Filed: 1924-10-04
Abstract: 241,000. Edwards, W. J. Oct. 4, 1924. Disinfecting-chambers. - A portable steam sterilizing apparatus for surgical appliances consists of an outer receptacle 1, preferably of aluminium, having its rim 2 outwardly flared and turned over the upper edge of a hoop or band 3 formed with lugs 4 for swing bolts 7 carrying wing nuts 8 for securing a lid 10 in position. The outer surface of the rim 2 and of the band 3 are bevelled so that an internally and externally bevelled edge is formed which makes a steam-tight joint with a correspondinglyshaped groove 12 formed between flanges 11, 13 on the lid. Lugs 14 on the lid are recessed to form seatings 15 for the wing nuts 8. The lid is fitted with a manometer, a safety valve, and an exhaust outlet. A spider 16 is bolted to the bottom of the receptacle and serves as a support for an inner sterilizing drum.
Patent GB-1327703-A (GB)
Title: Heating or cooling using ciruclared air
IPC: F24F5/00
Filed: 1971-04-19
Abstract: 1327703 Heating or cooling premises; dampers B HUMBERT 19 April 1971 [11 March 1970 12 Jan 1971] 23474/71 Headings F4U and F4V Apparatus for either heating or cooling premises by circulating heated or cooled air in closed circuit through the walls and ceiling of the rooms of the premises, includes air inlet and outlet headers 5, 5<SP>1</SP> located at the base of the walls of the room, for passing air upwardly through a hollow wall of the room, across a space between the ceiling and a false ceiling and downwardly through a second hollow wall to the outlet header. Nozzles 6,6<SP>1</SP>, 7,7<SP>1</SP> provided in the headers, are equipped with regulatable blockage means, either manually or automatically (by means of a thermostat) operated. As shown, the nozzle 210 is provided with a shutter comprising rectangular plates parallel to each other, and having areas progressively increasing in size from a first plate 46 to a last plate 49 in the direction of air flow in the header 21.
Patent GB-897520-A (GB)
Title: Gramophone turntables
IPC: G11B3/60
Filed: 1960-07-05
Abstract: 897,520. Gramophone turn-tables. KENNEY, M. W. July 5, 1960, No. 23517/60. Class 40 (2). To avoid flutter, a turn-table with a resilient drive connection to its shaft is otherwise freely supported on the shaft by roller-type bearings housed in a recess in the turn-table. As applied to playing a record 10 in a vertical plane, a turn-table 11 includes a flywheel portion 14 and is supported on a shaft 17 by ballraces 16. Pins 25 on a driven member 26 engage flared holes in a pair of resilient blocks 24, secured to the turn-table. A clamp plate 13, has a tapered nose 40 to engage the record hole and lift the record out of the tray 50 and hold it in coaxial driving engagement with the turn-table. After playing, mechanism 45 withdraws the clamp 13 sufficiently to allow the record to fall back to the tray 50.
Patent GB-997048-A (GB)
Title: Endless link conveyor belts
Inventor: HARVEY GEORGE ARTHUR
IPC: B65G17/08
Filed: 1963-06-13
Abstract: 997,048. Endless conveyers. SUPREME CONVEYOR BELT CO. Ltd. June 3, 1964 [June 13, 1963], No. 23528/63. Heading B8A. An endless conveyer belt has pivot rods 10 of which end portions 101, after the rods have been threaded through adjacent pairs of links 111, 112 are cranked through 90 degrees. Pairs of the end portions 101 are in abutment and are embraced by a metal clip 12 having portions 122 which may be clenched inwardly to grip the outermost limb of the adjacent link 111 or 112. The links have recesses 113 for locating the clip portions 122.
Patent GB-312869-A (GB)
Title: A new or improved draught regulator for furnaces
IPC: F23L11/02
Filed: 1928-08-16
Abstract: 312,869. St³bner, W. Aug. 16, 1928. Draught, regulating.-A furnace draught regulator comprises a casing a through which the admission of air to the chimney flue takes place under the control of a disc d suspended from one arm of a lever l pivotally mounted in the casing, the other arm of the lever having fixed to it a depending arm s carrying a weight m the turning moment of which thus increases with increaed draught. A rod k constrains the damper to move vertically. The movement of the damper is transmitted to an indicator q outside the casing.
Patent GB-985902-A (GB)
Title: Improvements in or relating to pressure welded articles
Inventor: GRAHAM EVAN TREVOR FREDERICK
IPC: H01L21/50
Filed: 1960-07-06
Abstract: 985,902. Welding by pressure. ASSOCIATED SEMICONDUCTOR MANUFACTURERS Ltd. May 9, 1961 [July 6, 1960], No. 23619/60. Heading B3R. An article includes two metal parts of different thicknesses pressure welded together, the thicker part being provided with a totally enclosed insert of harder material than the metal thereof and the insert being positioned to leave between itself and the weld a thickness of metal at least equal to the thickness of metal, on the other side of the weld, of the thinner part. A base for a transistor comprises two copper parts 1, 2 fixed together to enclose a trapezoidal section stainless steel ring 3 accommodated in a recess in the part 1 so that the thickness of copper A is equal to that of the cover (not shown) e.g. of copper to be welded to the base at W. The part 1 has two recesses 4, 5 each having a sloping face parallel to a face of the insert, to allow metal flow during welding. The insert may be enclosed by pressure die casting.
Patent GB-923477-A (GB)
Title: Improvements in dynamoelectric machines
IPC: H02K1/17
Filed: 1961-06-30
Abstract: 923,477. Motor casings; machines with permanent magnets. FORD MOTOR CO. Ltd. June 30, 1961 [July 1, 1960], No. 23686/61. Class 35. The stator of a dynamo-electric machine has a spring clip, such as 36, serving the dual purpose of securing the permanent magnets 18, 19 and the end cap 12 to the stator 17. In the fractional horse power, direct current motor shown, two radially-magnetized permanent magnets of a specified barium ferrite are attached to the ferromagnetic stator 17 by two spring clips 35, 36, having central parts 37, screwed to the stator and slotted arms 41 engaging the ends of the magnets 18, 19. Flanges 51 are provided with tapped holes to take the end cap screws 56. The other end cap 11 is secured by polymerizing cement. The armature shaft 14 is supported by porous sleeve bearings 25, having impregnated packings 26, held in the end caps by annular springs 27, 28, the latter being welded to the end cap. The armature is located axially by a circlip 61 and by the spring 28 bearing against the end of the commutator 16. The end cap 12 is extended at 63 to form a mounting flange.
Patent GB-1202016-A (GB)
Title: Winding shaft
IPC: F16D1/06
Filed: 1969-05-09
Abstract: 1,202,016. Mounting bobbins on spindles. ERWIN KAMPF MASCHINENFABRIK. 9 May, 1969 [4 June, 1968], No. 23711/69. Heading F2U. A hollow winding spindle 1 carries a series of bobbin carrier rings 2 mounted between fixed end rings 5 and frictionally driven by radial pins 3 pushed outwardly into engagement by an inflatable tube 4 in the spindle, the adjacent sides of the rings being formed with inner conical bearing surfaces 8 between which are mounted ball bearings 10, the arrangement allowing independent rotation of the rings 2. Each bobbin or tube holder 6 is secured on its carrier ring 2 by a threaded locking ring 14 formed with an inner conical surface engaging a circumferential helical spring 21 received in a peripheral groove 12 in the surface of ring 2.
Patent GB-376067-A (GB)
Title: Improvements in methods of and means for applying caps to the orifices of receptacles such as bottles
IPC: B67B3/14
Filed: 1931-08-24
Abstract: 376,067. Capping bottles &c. LANDAU, R., 202, Kaiserallee, Berlin. Aug. 24, 1931, No. 23768. [Class 125 (ii).] In a machine for applying crown corks and like caps to bottles &c. adjustable and uniformly acting forces operate on the head of the cap and drive the cap rim over the bottle mouth bead, after which horizontal or obliquely acting forces having downwardly-moving points of application press upon the cap rim in the direction of its longitudinal generatrices, thus making a permanently gastight compression of the packing gasket in the head of the cap and bending inwards the marginal portion of the cap. As shown, to the lower end of a capping head 1 mounted on a vertically reciprocated rod 3 is screwed a cupped nut 9, which presses the shoulder 21 of a guide sleeve 7 against a collar 10 on the head 1. On a hollow screw-threaded ram 11 passing through a bore in the top of the guide sleeve 7 and terminating in or provided with a permanent-magnet or electromagnetic die 12, is adjustably mounted a slide 14 working within the guide 7 and having conical resilient tongues 15. In operation a cap is allowed to adhere to the die and the head 1 is lowered on to the bottle. The cap is pressed tightly thereon, the slide 14 moving upwards relatively to the guide 7 against the spring 19. The sharp edge of the shoulder 21 presses on the tongues 15 and buckles them so that their pressure faces 16 press obliquely against and draw downwards the skirt of the cap, making a gastight joint. A ring 18 accentuates the buckling action. A resiliently-mounted rod 22, for ejecting unsuitable caps, rides in the hollow ram 11. For capping comparatively large receptacles such as jam jars the slide 14 and nut 9 may be replaced by larger sizes, and a suitable die attached to the ram. In the modification shown in Fig. 5, the resilient tongues are radially adjustable. The tongues 115 are carried on plates 120 sliding in radial slots 121 of a non-rotatable disc 122 which is vertically adjustable on the ram 111. Bolts 123 on the plates 120 engage in spirallycurved slots 124 in a rotatably-mounted disc 125, which has downwardly-extending arc-shaped combs 129, the lower surfaces 130 of which are oblique. The tongues 115 are enclosed by a sleeve 126 which is guided by means of a flange 127 along the inner surface of the sleeve 107. When the disc 125 is rotated in a clockwise direction the plates 120 and hence the tongues 115 are moved inwards, and the combs 129, which initially project into arc-shaped slots 132 on the flange 127 of the sleeve 126, are also rotated relatively to the sleeve 126, so that the sleeve rides down the oblique surfaces 130. The lower edge of the sleeve 126 then forms the sharp buckling edge, corresponding to the shoulder 21, Fig. 1.
Patent GB-1427142-A (GB)
Title: Air duct for underfloor ventilation of buildings
IPC: F24F7/00
Filed: 1972-05-19
Abstract: 1427142 Ventilating ducts R H MASSEY 21 May 1973 [19 May 1972] 23797/72 Heading E1B [Also in Division F4] An air duct for venting the space beneath a floor and designed to span a cavity wall comprises a one piece plastics tubular member with a grille releasably secured to one end. The grille and securing means are preferably made from plastics. The tube may have one or more peripheral weaknesses 10 enabling the length to be adjusted. The grille may be formed by louvres or horizontal and vertical intersecting ribs.
Patent GB-1497884-A (GB)
Title: Drill sampling diversion unit
IPC: G01N1/08
Filed: 1975-06-02
Abstract: 1497884 Boring earth &c B F CLARK 2 June 1975 [31 May 1974] 23829/75 Heading E1F Drilling fluid carrying ground samples is brought to the surface via a diverter, the diverter serving also to sealingly receive and align a drill rod 31 of a percussive drill. The diverter includes a rigid chamber 6 which is screwed onto the top of a bore hole casing 4 by means of stub-length of casing 7 having a radial flange 10 and seal 11. A sleeve 14 fastened to the top of the chamber serves as a stuffing box, and a further sleeve 22 screwthreaded on the sleeve 14 carries bearings 29 and a hardened pressed-in bush 32 for aligning the drill rod. A reservoir 33 for lubricating oil is provided above the bearings and nipples 20, 21 are provided in the sleeve 14 for applying grease to a stuffing gland 19 in the sleeve. The gland is axially located by an abutment member 28 which is advanced to wards the gland by manually rotating the sleeve 22 with the use of handles 25, 26. An output from the chamber 6 leads to a flexable high-density hose 49. The chamber is coated with an abrasion-resistant coating.
Patent GB-324351-A (GB)
Title: Improvements in or relating to colorimeters
IPC: G01J3/46
Filed: 1928-08-18
Abstract: 324,351. Hilger, Ltd., A., Twyman, F., and Perry, J. Aug. 18, 1928. Colorimeters for analysing the light from a specimen in terms of primary colours comprise a device quantitatively responsive to light, means for transmitting light from the specimen to the device, and means for indicating the quantitative response of the device to such light. Colour filters may be used to ensure that the sensitivity curve of the light-sensitive device conforms to the spectrum analysis curve of a primary colour. A casing 1 contains a source of light 2 and a number of light filters 3, which may be changed by rotation about the axis 5, and which have the required spectrum analysis for use in conjunction with the photo-electric cell 4. The beam of light passes through adjustable neutral tint wedges 6 and falls on the specimen 8, from which it is reflected to the cell 4 through the window 19 of the casing 20. Various specimens and a standard specimen may be supported on a slidable tray 9 for facilitating rapid comparison. The response of the photo-electric cell 4 is indicated on the screen 17 by light from the source 2 reflected through the electrometer 10, the crosswire of which is imaged at the position 14 and an enlarged image projected on to the screen 17 by the lens and reflector 15, 16. Three light responsive devices may be fitted to analyse the light from a specimen in terms of the three primary colours. The theoretical considerations involved are set out in the Specification.
Patent GB-975742-A (GB)
Title: Improvements in or relating to nuclear reactor control
Inventor: FLACHS PHILIPPE
IPC: G21C7/36
Filed: 1962-06-21
Abstract: 975,742. Nuclear reactors. COMMISSARIAT A L'ENERGIE ATOMIQUE. June 21,1962 [June 22, 1961], No. 23974/62. Heading G6C. [Also in Division H3] A device for indicating when the excess reactivity of a sub-critical reactor rises above a predetermined threshold value, comprises a radioactive neutron source disposed within the reactor; a detector for measuring the neutron flux after the neutrons have traversed the reactor core,producing a potential proportional to the flux, which is a function of the excess reactivity of the core and proportional to the intensity of the source; a time-scaled potentiometric device for producing a reference potential which is initially adjusted to the original value of the potential produced by the detector, the reactor thus having an excess reactivity which is predetermined, the reference potential being arranged to decrease as a function of a predetermined time period of the device according to the same exponential law as the neutron source intensity; and an electronic device which compares the potential produced by the detector with the reference potential, producing a signal when the first potential, is greater than the second. In one embodiment (Fig. 1), a potential source 1 has a portion of its potential applied, by means of a potentiometer 2, across an assembly of twelve series resistances M 1 , M 2 , M 3 ... M 12 , the terminals of which are connected to the twelve studs of a commutator 3 having twelve positions, each corresponding to one month of the year. The resistances are chosen so that the potential output of the commutator varies according to the desired exponential law, this output being applied across an assembly of thirty-one series resistances J 1 , J 2 , J 3 ... J 31  associated in a similar manner to the first assembly with a commutator 5 having thirtyone positions, each corresponding to one day of a month. The sum of the resistances J is much greater than that of the resistances M so that the output of the commutator 3 is independent of the setting of the commutator 5. The output of the commutator 5, variable exponentially, is applied across a resistance 7 to a comparator 8 which also receives the output from a neutron flux measuring device 9. The comparator 8 delivers a signal when the latter output exceeds the former, which signal can operate an alarm or control a locating-screw system for inserting an assembly of control rods.