baber/WOPTO huggingface dataset:
Patent GB-928489-A (GB)
Title: Improved automatic control apparatus for the width profile of a material flow
Inventor: MAMAS LEO GUS
IPC: G01N23/16
Filed: 1961-07-28
Abstract: 928,489. Automatic control of rolling mills. INDUSTRIAL NUCLEONICS CORPORATION. July 28, 1961, No. 27567/61. Class 38 (4). In a system for maintaining a predetermined linear dimension profile across the width of a material formed by coacting flow regulating elements, first, second and third actuators controlling the linear dimension are energized in sequence with an inspection sequence carried out by a gauge located at the output of the elements. As shown, a strip 10 is processed by a rolling mill having an axially fixed roll 16 and a roll 14 which is positioned vertically by motors 42, 46 operating independently to control the edge thickness of the strip 10. The motor 42, through a reduction gearing 44 and a screw 40, vertically positions a shuttle block 22 carrying a bearing block 20 for one end of the roll 14. The motor 46 similarly positions a bearing block 18 for the other end of the roll 14. A motor 56 through gearing 58, 60, 62, 64 cross-axially positions roll 14 with respect to roll 16 by displacing the bearing blocks 18, 20 horizontally in opposite directions to equal extents, to simultaneously vary the edge thicknesses while maintaining the centre thickness constant. A timer 122 controls a stepping switch actuator 120 positioning switch-arms 120a, 120b. The switch-arm 120a selects the reference potential, from a potentiometer 114, 116, 118, representative of the desired position L, C, R of a radiation-type thickness gauge 100. The gauge 100 is carried on an arm 104 positioned by a motor 108 energized by a positioning device 110 responsive to the difference between the reference potential and a position-dependent potential derived from a potentiometer 112 driven by the arm 104. The output of the gauge is fed to an indicator 102 and a thickness signal fed to a controller 126 which compares this signal with a desired-thickness signal and the error signal controls a relay system to apply power to a motor 42, 46 or 56. An actuator selector device 130 controlled by the switch 120a routs the output of the controller 126 to each of the motors 42, 46, 56 in accordance with the measuring position of the detector 100. Since the error signal at position C is not indicative of a need for a cross-axis adjustment unless the thicknesses at positions L, R are correct, a disabling circuit 132 prevents the energizing of motor 56 except when both left and right edges of the strip have been measured and no corrective action has taken place. U.S.A. Specifications 1,969,536, 2,573,353, 2,792,730 and 2,829,268 are referred to.
Patent GB-228274-A (GB)
Title: Improvements in universal joints
IPC: F16D3/38
Filed: 1923-11-03
Abstract: 228,274. O'Neil, R. S. Nov. 3, 1923. Universal joints.- An open - ended spherical member 3, secured by a flange or a screwed socket 2 to a shaft 1, has internal lugs 4 between which lies a rectangular frame 5 having pivots 6 turning in the lugs 4, and secured therein by bearing caps 7. The frame 5 has also a perpendicular pair of pivots in the form of screws 12 engaging a block 11, which is frees to rock in the frame and is carried by a second shaft 10. A hemispherical shell 15 on the shaft 10 fits over the member 3 and has a lubricant retaining and dust-excluding packing- ring 16, the hollow parts being filled with lubricant through a plugged orifice 17. The shell 15 may be made greater than a hemisphere by securing thereto an extension ring. In a modification, the pivots 6 are formed on screws inserted in the lugs 4 with their heads below the outer surface of the sphere 3. The members 3, 15 need only be spherical where they contact.
Patent GB-161549-A (GB)
Title: Improvements relating to pianofortes and like instruments
IPC: G10C3/30
Filed: 1920-10-01
Abstract: 161,549. Moor, E. Oct. 1, 1920. Pianoforte and like keys and keyboards; octave couplers. - A pianoforte or like instrument is provided with two independent ranges of keys A, B, one of which, as A, has an . octave coupler formed for instance by oblique levers f (shown in full elevation) raised by a pedal e. The rear ends b of the white keys of the front range may be made of the same height as the black keys a, by buttons or otherwise, and the keys of the range not provided with the coupler may have oblique mechanism, for striking notes an octave higher than those of the corresponding keys of the other range.
Patent GB-1509235-A (GB)
Title: Torque sensitive pitch lock for fan propulsors
IPC: F01D7/00
Filed: 1975-07-02
Abstract: 1509235 Axial-flow fans; ducted-fan engines UNITED TECHNOLOGIES CORP 2 July 1975 [5 July 1974] 27907/75 Headings F1C and F1J The variable-pitch blades 18 of a ducted fan of a gas turbine or other propulsion engine are locked against movement towards a lower pitch angle by means responsive to a condition in which the driving torque is negative, i.e., in which the blades are extracting energy from the air-stream. The fan is driven from an engine shaft 44 via planetary gearing including a ring gear 50 which is connected to the fan hub via helical splines 78. On the occurrence of negative driving torque, the helical splines 78 cause the ring gear 50 to move rightwards away from a stop 74 and thereby move a ring 72 against the action of a spring 66 to bring teeth 64 on the ring into engagement with teeth 62 on the gear-wheel 40 which effects adjustment of the blade pitch. The teeth 62, 64 are of ratchet form whereby their engagement prevents decrease of blade pitch but does not prevent increase. Spring 66 may be replaced by a hydraulic cylinder in which the hydraulic pressure may be variable to vary the value of negative driving torque at which pitch locking occurs.
Patent GB-1402636-A (GB)
Title: Automatic calibration of digital voltmeter
IPC: H03M1/00
Filed: 1972-06-14
Abstract: 1402636 Analogue to digital converters G & E BRADLEY Ltd 7 May 1973 [14 June 1972] 27913/72 Heading H3H An analogue to digital converter comprises a reference source 4, a circuit 1 in which the analogue signal is compared with the reference source and a circuit which compensates variations in the level of the reference source, the compensation circuit including a comparator 7 which compares the output of the converter during a calibration cycle with a level representative of the level of a calibration source 19 and an adjustment circuit 13, 14 responsive to the output of the comparator, the output of the adjustment circuit being added to or subtracted from the reference source 4. The converter is preferably a dual ramp converter in which the integrating circuit 1 controls a gate 6 to enable clock pulses to be accumulated in a display counter 5, the count being a digital representation of the analogue voltage fed to a terminal 22. At intervals determined by a timing circuit 20 a switch 21 is changed over to connect the accurate calibration source 19 to the circuit 1 and the reference input of the comparator 7 is fed with a count equivalent to the voltage of the source 19. If the voltage of the reference source 4 differs from that of the calibration source 19, the comparator 7 causes an exclusive- OR gate 8-10 to hold open a gate 11 for a duration proportional to the magnitude of the difference. The clock pulses fed to a counter 12 energize relays 13 to connect a voltage V via binary weighted resistors 14 to the reference source 4, thereby adjusting the reference source voltage.
Patent GB-384024-A (GB)
Title: An improvement in hyperboloidal worm gearing
IPC: F16H55/22
Filed: 1931-10-08
Abstract: 384,024. Gear-cutting. GUEST, J. J., Furzedown, Knee Hill, Abbey Wood, London. Oct. 8, 1931, No. 27980. [Class 83 (iii).] In hyperboloidal worm gearing having two lines of contact the main line of contact, not necessarily straight, formed by the contact lines ab, cd, ef, gh, is offset from the plane through the axis AB of the worm towards the side E at which the worm teeth leave those of the worm wheel. The worm is generated on a worm-wheel bobbing machine, the worm blank occupying what is normally the hob position, and the place of the worm-wheel blank being taken by a rotatable table on which is a vertical slide the saddle of which adjustably carries a headstock for the spindle of a cutter or grinding wheel provided with driving means. The grinding wheel may be a pencil one or a conical dish wheel with a curved or straight axial section. The axis of the cutter is offset from the axial plane of the worm so that contact occurs along the offset main line. The machine operates on one face at a time the worm being reversed to grind its opposite tooth face. The worm-wheel is hobbed in the usual manner by a cutter corresponding to the improved worm.
Patent GB-321515-A (GB)
Title: Improvements relating to vacuum dust removers
IPC: A47L9/00
Filed: 1928-09-29
Abstract: 321,515. Jones, E. Sept. 29, 1928. Vacuum cleaning-apparatus. - In vacuum dust-removers the suction through the nozzle e is automatically interrupted to give a shaking action to the article being cleaned, e.g. by a vane d rotated over the nozzle e and driven through reduction gearing b from the shaft a of the fan motor. The suction may also be electrically inter- . rupted.
Patent GB-639740-A (GB)
Title: Improvements in and relating to radar reflection surfaces
IPC: H01Q15/14
Filed: 1947-10-21
Abstract: 639,740. Coated fabrics. SUCHY HOLDINGS, Ltd., and RICHARDS, H. E. G. Oct. 21, 1947, No. 28119. [Class 140] Coated fabric for radar reflection surfaces of balloons or aerial screens consists of a non- conductive fabric, impregnated with silver as by immersion in a solution of ammoniacal silver hydroxide and a reducing agent, and then coated with a flexible protective coating such as rice starch or cellulose lacquer.
Patent GB-475448-A (GB)
Title: Improvements relating to cartridge fuses
IPC: H01H85/165
Filed: 1936-10-17
Abstract: 475,448. Fusible cut-outs. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., HUNTER, P. V., and METCALF, A. W. Oct. 17, 1936, Nos. 28269/36 and 24888/37. [Class 38 (i)] In a cartridge fuse, Fig. 1, an inner tube 2, of inorganic, insulating, non-hygroscopic material such as glass, steatite, glazed earthenware, glazed stoneware, or porcelain containing the fusible element 1 and sealed off with a plug 4 of plaster of Paris or cement, is sealed with a plug 5 into an outer tube 3 of similar material to the inner tube 2. The tube 2 is packed with sand and the space between the tubes may also be filled with sand. The fusible element 1 passing through the plugs 4, 5 is soldered at 9 to the end cap 7 retained on the tube 3 by cement 8, an asbestos washer : 6 being interposed between the cap 7 and the plug 5. In a modification, Fig. 2, four inner tubes are used connected in parallel, the tubes being held together by a cotton binder 10.
Patent GB-206850-A (GB)
Title: Means for controlling the charging of electric batteries
IPC: H02J7/34
Filed: 1923-11-09
Abstract: 206,850. Eclairage des VÚhicules sur Rail. Nov. 9, 1922; [Convention date]. Systems of charging and discharging galvanic batteries.-The operative condition of an overcharge preventer is controlled by two relays one of which is connected across the generator and controls the circuit of the other through contacts on the cut-in switch. The second relay is connected across the battery and operates to set the over-charge preventer for operation only if the battery is not sulphated. A relay G connected across the generator A operates, before the cut-in switch H, to place a relay E across the battery K through the contacts a, b, of relay G, and the contacts c, d of switch H. If the battery is not sulphated the relay E operates to close the circuit of the over-charge preventer D through the contacts k, k and to establish a hold-on circuit for itself at the contacts m, p, n after the switch H has operated. If the battery is sulphated the relay E does not operate to complete the circuit of the over-charge preventer D.
Patent GB-262240-A (GB)
Title: Improvements in or relating to life belts
IPC: B63C9/115
Filed: 1925-11-10
Abstract: 262,240. Dicker, S. G. S., (Adams, J. B.). Nov. 10, 1925. Belts. - A life-belt comprises an upper series 1 and a lower series 2 of buoyant elements separated by a horizontal web 3 with spaced eyelets 6 through which a strap 7 passes to extend at the ends for fastening together. The individual members of the series are spaced by vertical webs 5. One or more buoyant elements 8 are spaced from the upper series by horizontal webs 9 having buoyant pads 10 at each end.
Patent GB-1155703-A (GB)
Title: Mine Roof Support System
Inventor: PAWLING FRANK
IPC: E21D23/00
Filed: 1965-07-05
Abstract: 1,155,703. Advancing mine roof supports. DOWTY MINING EQUIPMENT Ltd. 3 Oct., 1966 [5 July, 1965], No. 28370/65. Heading E1P. In an mine roof support system comprising a series of advanceable roof supports (not shown) in which each support has a main control valve assembly 1 for controlling the retraction, advancing and resetting operations of its support and caused to operate by pressurprising an "advance-start" line 2, pressurisation of line 2 occurs through a second control valve assembly 5 as a result of manual, remotely controlled or automatic operation of the second valve assembly 5 on adjacent support and consequent pressurisation of either a signal line 6 or 7 connected to the first-mentioned assembly 5. Each second valve assembly comprises two pairs of normally closed valves 8, 9 and 12, 13, each pair being connected to the respective signal line 6 or 7, and all the valves being inter-connected by an intermediate pressure line 11 normally vented through a sequence valve 16. When the signal line 6 is pressurised, the "advance-start" line 2 is immediately pressurised through the valve 8, and the associated support thus undergoes an advancing operation culminating in the re-setting of the support against the roof. The resetting of the support causes pressurisation of a line 17 and consequential operation of the sequence valve 16 causing isolation of the intermediate pressure line 11 from exhaust and pressurisation thereof from lines 2 and 14. Pressure in the line 11 closes or maintains closed valves 8, 12 whereas valves 9 and 13 are opened and maintained open to cause pressurisation of the signal line 7. This signal line 7 is connected to the signal line 6 of the -next support which is thus caused to advance through pressurisation of its "advance-start" line 2.
Patent GB-1124534-A (GB)
Title: Polarised indicator electrode for a continuous automatic titrimeter
Inventor: RECORD ROBERT GEORGE HAMILTON
IPC: G01N31/16
Filed: 1966-06-24
Abstract: 1,124,534. Automatic titration. GEORGE KENT, Ltd. June 23, 1967 [June 24, 1966], No.28442/66. Heading G1N. In automatic titration apparatus, the electrochemical measuring system includes a polarizable indicator electrode and an auxiliary (polarizing) electrode, which are energized from a stabilized high voltage D.C. source, (or a 120 volt battery) through a ballast resistor e. g. 100 megohms, to provide a few micro-amps polarizing current. It is stated that by varying the magnitude and polarity of the polarizing current, a chosen response rate, sensitivity, and shape of the "titration curve" can be obtained.
Patent GB-195416-A (GB)
Title: Improvements in x-ray apparatus
IPC: H02M1/20
Filed: 1921-10-28
Abstract: 195,416. Codd, M. A., and X-Rays, Ltd. Oct. 28, 1921. Grant of Patent revoked. Commutator switching- arrangements. - In the transformer circuit of an X - ray apparatus, a mechanical rectifier is arranged so that the angle of collection is automatically increased when a soft tube taking a large current is put in circuit and automatically decreased when a hard tube is put in. The collectors 3, Figs. 1, 2, 3 and 4, are arranged to present convex curved surfaces to the moving segments 2 of the rectifier 1, which are themselves provided with rounded surfaces and the current sparks or arcs across a small gap which is arranged to be left as the segments pass the collectors. With heavy currents the arcs persist and so increase the angle of collection: with light currents the sparks are quickly damped out. The arcs may be blown out either by a draught from a suitable blower or by air driven by vanes 6 of paxolin, micanite &c. mounted on the rotating member. Collectors of the shapes shown in Figs. 2 and 3 may be used. The configuration of the rectifier may also be as shown in Fig. 4.
Patent GB-154439-A (GB)
Title: Improvements in or relating to drying apparatus employed in the manufacture of bootsand shoes
IPC: A43D95/12
Filed: 1919-11-20
Abstract: 154,439. Macdonald, D. B. Nov. 20, 1919. Drying.-Relates to apparatus of the type described in Specification 134,089 for drying or mellowing parts of boots and shoes during manufacture, and consists in concrete constructions of modifications briefly indicated in the prior Specification. Fig. 1 shows an apparatus specially suitable for drying the toe parts of boots after lasting. A central vertical column 1 is supplied with heated air by a pipe 7. On the column 1 is rotatably mounted a chamber having double walls 6, 12. The outer wall has a number of apertures 25 each adapted to house the toe part of a boot, each aperture being normally closed by a hanging flap 28 having a weight 30 and a stop 31 for engaging the toe of the boot. A nozzle 23 for each aperture directs heated air on to the toe portion of the boot. The flaps 28 may open downwards, be normally closed by springs, and act as supports for the toe of the boot. The apparatus is intended to treat boots after lasting and prior to the attachment of the sole, being placed between two operators and turned half a revolution as desired, a pedal operated catch 20 retaining the rotating chamber in either of its two positions. The opposite sides of the outer wall 6 may be painted different colours. The central column may have steam pipes and baffles or other means for heating air supplied by a fan. Air outlets 26 are provided. Fig. 8 shows an apparatus specially suitable for mellowing before lasting, moistened. air being supplied by a pipe 47 to nozzles 38 on the inner walls of rectangular chambers 43 rotatably mounted on a central column and co-operating with toe-receiving apertures 44. Wire frames may support the rear of the boots.
Patent GB-535624-A (GB)
Title: Improvements in gas meters
IPC: G01F3/22
Filed: 1939-10-28
Abstract: 535,624. Gas meters. BEGWACO, Ltd., THROP, F., and BUTTERWORTH, E. Oct. 28, 1939, No. 28911. [Class 54] A swash-plate on a crank shaft coupled to the flag arms of a dry gas meter engages rollers i on arms h carried by levers f, g operating the valves controlling the flow of gas to and from the measuring chambers. The arms h of the two levers are spaced 90 degrees apart relatively to the circumference of the swash plate. In the meter shown the valves c, d engage seats carried by flexible seals k but slide or other valves may be used.
Patent GB-413913-A (GB)
Title: Improvements in spectacle hinges
IPC: G02C5/22
Filed: 1933-10-19
Abstract: 413,913. Spectacles. EGLINGTON, W. D., 100, Lower Addiscombe Road, Croydon. Oct. 19, 1933, No. 28972. [Class 97 (i).] One element of a spectacle hinge has extensions 4, through which fastening means 3 are passed, extending on each side of the chinier or chiniers 5 in the direction of the hinge pin. The chiniers 6a on the plate 7 attached to the spectacle side piece may overlie the projections 4 and hide them as shown in Fig. 3 when the hinge is assembled. The chinier end of plate 7 may be prolonged and shaped to form a stop to limit the motion of the side piece.
Patent GB-186849-A (GB)
Title: Improvements relating to settings for stills and for similar purposes
IPC: F23M5/02
Filed: 1921-11-01
Abstract: 186,849. Mather, P. Nov. 1, 1921. Liquid and gaseous fuel furnaces; dampers.- A setting for stills &c. comprises a vertical series of annular heating-flues transversely disposed with respect to the centre-line of the still, each flue having a corresponding combustion chamber and an outlet to a common stack at the side of the setting remote from the combustion chamber. The setting a is shown applied to a still such as described in Specification 175,666, having a casing c and a vapour outlet tube e, the annular flues b surrounding the casing c and separated from each other by horizontal walls i supported by the wall of the flues b and hoops i<1> on the casing. An additional flue d surrounds the downwardly-protruding part e<1> of the tube e. The combustion chambers l are disposed radially with respect to the flues b and are provided with liquid or gaseous fuel burners k in holes m in the front wall. A pair of air ports n is provided for each burner, one part extending beyond the other to supply air for secondary combustion. The still casing c facing the combustion chamber is covered with a layer of fire-brick o to avoid excessive, local heating and a fire-brick pillar p with curved faces p' directs the hot gases into the flue b. Baffles r on the walls of the flue constrict the passage of the gases. The outlets q leading to the stack s are of considerable height relative to their width and may be provided with dampers t sliding in a channel u<1> on a frame u and operated from without the setting by a handle t<5> and a nut t<4>. A non-conducting lining f is interposed between the firebrick walls q of the flues b and the brickwork backing h, and also above and below the parts of the still which protrude from the flues. Manholes v provide access to the flues and a space w is provided below the tube e for steam and other pipes.
Patent GB-159563-A (GB)
Title: Improvements in or relating to change-giving apparatus
IPC: G07D1/00
Filed: 1919-11-22
Abstract: 159,563. Porter, J. Nov. 22, 1919. Money-delivering apparatus.-In a changegiving apparatus, the sets of change are contained in cups a which are hinged to platforms d and normally held in position on the platforms by springs e. Each cup is provided with an upstanding thumb-piece b. To obtain change, the index finger of either hand is placed against the edge of the platform and the thumb of the same hand presses against the back of the thumb-piece, thereby tilting the cup against the action of the spring, and discharging the change into the hand. The other hand is left free to place the coin or note in the space formerly occupied by the cup.
Patent GB-803329-A (GB)
Title: Improvements in, or relating to, portable electrical heating appliances
IPC: H05B3/02
Filed: 1955-10-13
Abstract: 803,329. Electric air heaters. COX, P. C. Jan. 14, 1957 [Oct. 13, 1955], No. 29126/55. Class 39(3) A portable electric heating appliance comprises a fan accommodated within a casing provided with a tubular spout disposed around and spaced from a discharge tube housing a heating element. both the spout and tube forming passages 'for the flow of air from the fan. As shown, a casing 1 has a tubular spout 2 at one end. a dished cover 3 with air ports 4 and a cage 5 at the other end end, and a hollow handle 6 with two switches 7 and 8. A removable air discharge tube 9, supported by radial fins 10, lies concentrically within the spout 2 to form an annular space 11 and contains a heating element 31. A fan 12 driven by an electric motor 13, forces air through the tube 9 and space 11, the air through the tube being heated and the tube being cooled by the air flowing through the space 11. The discharge tube may be replaced by one of different diameter and the spout may be detachably assembled to the casing. The switches are arranged so that the heating element cannot be energized unless the fan is in operation.
Patent GB-159564-A (GB)
Title: Improvements in thermionic devices
IPC: H01J1/14
Filed: 1919-11-22
Abstract: 159,564. Dowsett, H. M. Nov. 22, 1919. Vacuum tubes.-The cathode A of a thermionic valve is formed by a crystal which is refractory and a bad electrical conductor, such as carborundum, bornite, zincite or silicon. The crystal has steel or other metal tips B welded on to the ends which are made thicker than the middle part. The metal used for the tips has a melting point as near as possible to the temperature at which the crystal changes either its chemical or physical nature.