baber/WOPTO huggingface dataset:
Patent GB-539903-A (GB)
Title: Apparatus for measuring impedance
IPC: G01R27/02
Filed: 1940-05-16
Abstract: 539,903. Inductance and capacitance measurements. MAYO, C. G., and ELLIS, H. D. M. May 16, 1940, No. 8792. [Class 37] Apparatus for measuring impedance, particularly very small capacities and inductances, comprises a bridge having two arms formed by the two windings of an auto-transformer and two arms formed by a standard condenser and the unknown impedance, input terminals. for the application of an alternating current to points on the auto-transformer being provided, and the detecting circuit being connected from a point on the auto-transformer to the junction point of the condenser and the unknown impedance. In the arrangement shown the tone source comprises a valve V1 connected as an oscillator with the feed-back controlled by a resistance-capacity network N. The oscillation is controlled by an A.V.C. circuit including a rectifier X, which is adjusted to maintain gentle self-oscillation and keep the harmonic content low. The oscillator is followed by an amplifier V2, the secondary winding T1, T2 of the output transformer of which acts as an auto-transformer constituting the ratio arms of the bridge, the winding T 2 being between the end 1 and the tapping 2. A selector switch S1 is connected to tappings 3, 4, 5 and the upper terminal 6 of the primary winding of the transformer. The winding T2 may develop 0.1 volt, and the winding T1 either 0.1, 1.0, 10, or 100 volts according to the setting of the switch S1. The windings T1, T2 are connected to a condenser F of known value and the unknown capacity is connected to terminals M1, M2 connected through screened cable to the arm of the switch S1 and one terminal of the condenser F. A trimming condenser (not shown) may be connected in parallel with the condenser F to enable it to be calibrated against a standard condenser connected to the terminals M1, M2,the residual capacity of the standard condenser being thereby balanced out. A further trimming condenser C2 is provided to balance out the residual capacity of the condenser F. Losses in the unknown condenser are balanced out by a resistance trimmer R 2. An earthed screen S is arranged around the elements F, C 2, R 2, and the detector resistance R and the screening of the cable connecting to the terminal M2 are bonded to the screen S. The detector comprises two amplifier valves V3, V4 followed by an indicator of the " magic eye type. Two magic eyes K1, K 2 are shown, the latter being tapped across a smaller part of the output resistance so that it is less sensitive than the former. The trimming condenser C2 is shown in Fig. 5. An outer screen S1 is connected to the screen S and surrounds an electrode Q set in a recess in an insulating body U through which is threaded an adjustable electrode W.
Patent GB-1166555-A (GB)
Title: Plant for Continuous Production of Flat Sheet Metal especially Tin Plate Sheets
IPC: B21D1/05
Filed: 1967-02-24
Abstract: 1,166,555. Making tinplate strip; straightening. COCKERILL - OUGREE - PROVIDENCE. 24 Feb., 1967 [24 March, 1966], No. 8830/67. Headings B3A and B3E. Apparatus for the continuous production of flat tinplate by electrolytic deposition of tin and by passage between the rollers of a smoothing device of a strip of sheet metal maintained taut by a tensioning device, comprises an electrolytic tinning device 13, a device for refusing the tin coating 15, and a smoothing device 14, having rollers idly mounted, between the tinning device and the re-fusing device. Metal strip 3 is drawn by rollers 4 through a welding device 5 and into a depression 6, where it forms a loop 3a. Braking means 7 forms the first part of the tensioning device the second part of which is formed by a traction means 8 and the strip passes successively through a hole detector 9, thickness gauge 10, degreasing, rinsing and pickling vats 11, brushing vat 12, electrolytic tinning and rinsing vats 13 and a drying device 16. The strip is smoothed in a device 14, between idler rollers (18), (19) which are arranged to flex the strip alternately up and down, Fig. 2 (not shown). The strip is then passed through the device 15 for re-fusing the tin, traction rollers 8, hole detector 21 and a guillotine 17.
Patent GB-912862-A (GB)
Title: Electric current limiting switches
Inventor: LOWE SIDNEY ROLAND
IPC: H01H73/30
Filed: 1960-03-14
Abstract: 912,862. Automatic circuit - breakers; switches held set and freed mechanically; thermal switches. MIDLAND ELECTRIC MANUFACTURING CO. Ltd. March 14, 1961 [March 14, 1960], No. 8839/60. Class 38 (5). An overload responsive switch has a bimetallic element 15 which serves both as a release means for effecting tripping of main contacts 11, 13, and as an auxiliary contact member which engages a co-operating auxiliary contact 23 when the current through the switch approaches the value at which main contacts are tripped. In the arrangement shown, the element 15 is heated by a coil 16 and deflects to move a trip-bar 14 to release a spring-biased arm 12 carrying the main moving contacts. Before the arm 12 is released, the element 15 engages the contact 23 to complete a circuit, e.g. for an alarm. The switch is closed by a push-button 19 and may be manually released by a further push-button 18 which acts on the trip-bar 14.
Patent GB-551403-A (GB)
Title: Improvements in or relating to mechanically propelled tipping trucks
IPC: B62D49/06
Filed: 1941-07-14
Abstract: 551,403. Steering motor vehicles. BOYDELL & CO., Ltd., E., and COLDWELL, J. D. July 14, 1941, No. 8858. [Class 79 (v)] In order to enable a vehicle to be steered with equal facility in either direction the driver's seat 10 with its adjacent steering hand-wheel 21 and control mechanism can be turned so as to face forwardly or rearwardly and coupling mechanism is provided for the steering wheel movable with the reversible seat to opposite alternative positions so as to provide relatively reversed connections for the steering wheel in its alternative positions and give the same directional arrangement of steering wheel movement for both positions of the seat. In the construction shown the seat 10 is fixed to a turntable 12 swivelling on an axis AA and carrying the steering wheel 21 and steering gear-box 23. The drop-arm 24 of the steering gear is connected by a link 29 to one arm 27 of a lever, mounted in a bracket 25 on the frame 13, the ball-joint 28 on the arm 27 being located on the axis AA when the steering road wheels are in their straight-ahead position so that the steering-gear is not moved when the seat and steering hand-wheel are rotated from one position to the other. However, the movement of the arm 24 from a position forward of the arm 27 to one rearwardly thereof, and vice versa, causes a reversal in the connection between the steering hand-wheel and the steering road wheels, so that whichever way the seat faces the vehicle is steered in the same direction as that in which the steering hand-wheel is turned.
Patent GB-1506904-A (GB)
Title: Method of and apparatus for locating a position
IPC: G01S5/14
Filed: 1975-03-04
Abstract: 1506904 Radio navigation AA ELWOOD 4 March 1975 [8 March 1974] 8904/75 Heading H4D An adaptation of the radio position fixing method described in Specification 1,311,109 wherein the pulse amplitude modulation of the carrier emitted by each transmitting station is replaced by continuous amplitude, frequency on phase modulation. Single side band may be used on suppressed carrier double side band. In the latter case, one of the side bands is used to provide the fine phase and position determination, whilst the 2 times modulation frequency frequency difference between the side bands is used to provide the coarse phase and position determination. The modulated carriers may be transmitted in bursts.
Patent GB-749338-A (GB)
Title: A rotative probe for ultra-sonic detecting devices
IPC: G10K11/00
Filed: 1954-03-26
Abstract: 749,338. Couplings for conveying supersonic energy. REALISATIONS ULTRASONIQUES. March 26, 1954 [March 27, 1953], No. 8909/54. Class 40 (4). [Also in Group XL (b)] In a probe for the ultrasonic testing of materials, the portion in contact with the material under test comprises a solid of revolution mounted' so as to be capable of rolling across the surface of the material. A disc of pressure-sensitive ceramic 9, Fig. 1, has axles 8 on either side, which are metallized intogrally with the disc electrodes 10, and are accommodated in bearings 5 which incorporate a mercury filled groove 6, 7 to make a connection between the electrodes 10 and conductors 2, 3. In a modification, Fig. 2, a similarly mounted conductive disc 14 serves as a coupling between the test-piece 15, and a crystal 16, housed in an oil-filled chamber 19. A still further embodiment using a coupling sphere is described with reference to Fig. 4 (not shown). A crystal 27 in a final embodiment, Fig. 3, is mounted in an oil-filled hollow cylindrical container 23 which is mounted in bearings 22, 24. The oil and the container provide a path for the ultra-sonic waves.
Patent GB-140608-A (GB)
Title: Improvements in or relating to the joints of wind screens and other hinged or jointed articles
IPC: F16B12/40
Filed: 1919-04-09
Abstract: 140,608. Hughes, B. Pask-. April 9, 1919. Pivot adjustments.-In joints for windscreens &c. in which a tube a<2> on the edge of the screen accommodates a rod or tube c fixed to the standards, the rod is preferably of square cross-section and substantially smaller in diameter than the outer tube. The rod carries one or more pairs of non- rotatable half-bushes b, b<2> which are slightly separated to grip the interior surface of the tube to fix it in an adjusted position. The separation is effected by a screw f passing freely through the rod and bearing against the half-bush b<2>. Lugs d<2> integral with the end standards or stationary parts form pivots for the screen.
Patent GB-979087-A (GB)
Title: Improvements in or relating to butt jointing apparatus
IPC: B22D19/04
Filed: 1963-03-06
Abstract: 979,087. Casting composite articles and joints. ERICO PRODUCTS Inc. March 6, 1963 [April 12, 1962], No. 8941/63. Addition to 977,258. Heading B3F. Apparatus for butt jointing metal bars 1, 2,  comprises a sleeve mould 4 having internal indentations such as grooves 5 and intended to become an integral part of the joint, upper and lower clamping members 9, 16 with seating means 14, 21, and a pouring basin 30 mounted on the mould. The graphite pouring basin 30 supports a graphite crucible 36 in which molten metal is produced by an exothermic reaction mix and which is temporarily stoppered by a fusible disc 38. The pouring basin is adjustably supported by a screw 29.
Patent GB-805596-A (GB)
Title: Improvements in or relating to rotary duplicating machines
IPC: B41L11/00
Filed: 1956-03-23
Abstract: 805,596. Copying documents. RITZERFELD, W., and RITZERFELD, G. March 23, 1956 [March 31, 1955], No. 9125/56. Class 100(2) A rotary duplicating machine comprises a printing drum, and a counter pressure roller movable, by a control arrangement comprising a cam or cams, into and out of a co-operating position with the drum for printing sections of the master sheet on the drum, supporting means being provided for holding the roller against the drum when whole pages are to be printed. Sheets 6, Fig. 2, are fed between a printing drum 1 carrying a master sheet 2 and a pressure roller 8. The drum 1 carries a cam 13 for printing the heading and a cam 14 for printing selected parts of the text. The cam 13 is angularly adjustable by a hand control 18, locking wheel 15, locking pawl 16 and switching pawl 17, and can be moved back to its initial position by a hand wheel 21 through a chain 23 and gears 25, 26. In operation, a cam roller 27 is acted on in succession by a high portion 13a of the cam 13 to print the heading, a high portion of the cam 14 to print the text, and a high portion 13b of the cam 13 to eject the copy sheet. The cam roller 27 acts through a lever 28, shaft 29 and lever 30 to move the pressure roller 8 against the drum 1, provided a lever 9 is in the position O. If the lever 9 is moved to one of the positions I-V, the roller 8 is permanently urged, with variable pressure according to which position the lever 9 is in, by means of an eccentric 32 and lever 31, against the drum 1 to print the complete text, the roller 27 being held out of operative relationship with the cams. In another form, Fig. 4, the lever 31 is replaced by a toggle 41, 42, the eccentric 32 actuating the joint 41. When the lever 9 and a further lever 43 are in position "O", the drum 1 and roller 8 are held apart. When the lever 9 is moved to positions "I" to "V", interrupted printing takes place with variable pressure, while if the lever 43 is in positions "I" to "V", continuous printing of whole pages takes place. Cams 13, 14, 37, 38 are provided on a separate shaft 48, the cam 13 being fixed on the shaft, the cam 14 for printing a single line being rotatably displaceable, and the cams 37, 38 for printing a plurality of lines are rotatably and axially displaceable. The roller 27 senses the cams 14, 37, 38, while the cam 13 is sensed by a further roller on a separate sensing lever, which together with the lever 28 is mounted on a shaft 281, so that movement of the further roller is transmitted to the lever 28. Specifications 735,181 and 765,440 are referred to.
Patent GB-1459723-A (GB)
Title: Liquid-coolable heavy current cable
IPC: H01B9/00
Filed: 1975-03-05
Abstract: 1459723 Cable terminals KABEL-UND METALLWERKE GUTEHOFFNUNGSHUTTE AG 5 March 1975 9132/75 Heading H2E A liquid cooled heavy-current cable (e.g. for use in an arc furnace) which comprises an inner tube (not shown) for conveying the coolant, a plurality of stranded conductors (not shown) around the inner tube, and an outer sheath 3 (e.g. fabric reinforced rubber) has a cable lug 1 at either end, adapted to convey a cooling fluid into or out of the inner tube, wherein the outer sheath 3 is rotatably mounted on each cable lug 1. The inner tube is screwed into recess 2. The outer sheath is clamped on to sleeve 5 by non-magnetic clips 4. The sleeve 5, preferably, but not necessarily metallic, is mounted on the cable lug by a ring 6 held to the sleeve by screws 7 and located on the lug by recess 8. A seal 9 is compressed by copper washer 10 and held by ring 6. There may also be a bearing member 11, or an intermediate sleeve at the interface 12 to aid rotation of the components.
Patent GB-759586-A (GB)
Title: Improvements in or relating to indicating devices on turbine-driven vehicles
IPC: G01P1/10
Filed: 1952-04-09
Abstract: 759,586. Speedometers. REGIE NATIONAL DES USINES RENAULT. April 9, 1952 [June 20, 1951], No. 9146/52. Class 106 (3). [Also in Group XXXI] A turbine-driven vehicle is provided with a maximum speed indicator (not shown) actuated by movement of a rod 3 closing an electric switch 4, movement of the rod being dependent on the turbine speed and on the position of a control lever (not shown) whereby the switch is only closed when the turbine speed exceeds the maximum safe value. As shown, the rod 3 is connected to a member 12 having its ends associated with turbine speed and the position of the control lever respectively. Increase of turbine speed causes by the action of air or liquid pressure clockwise movement of a lever 8 linked to the end 11 of the member 12, and reduction of fuel supply by the control lever causes air or liquid pressure to act on a piston 16 to cause downward movement thereof, the piston 16 being connected to the end 14 of the member 12. The switch 4 is closed when the member 12 is in the dotted line position and actuates a sound or other signal. In a modification, Fig. 2 (not shown), the piston 16 is replaced by a link connection between the control lever and the member 12.
Patent GB-254409-A (GB)
Title: Alternating current relay
IPC: H01H53/10
Filed: 1925-04-06
Abstract: 254,409. Howe, W. K. April 6, 1925. Induction relays for railway signalling have the slotted vane 34 forming the movable element carried by a pivot pin 33, the displacement of the vane being communicated to a pivoted contact-carrier bar 12 mounted on a pivot pin 11 parallel to the vane pivot 33, the vane and carrier bar being connected by means of a releasable coupling. This coupling comprises an eccentric roller 36 carried by the vane pivot which is engaged by the bifurcated end 20 of a depending arm 17 of the carrier bar 12. The bar 12 carries at each side sets of movable contacts 14 which co-operate with sets of fixed contacts 15, 16. The terminals 6 for the fixed and movable contacts are mounted on an upper insulating plate 3 forming the lid of the casing F, and the plate 3 carrying the whole of the contact mechanism may be detached without disturbing the vane and operating electromagnet E, the fork 20 leaving the roller 36 during this detachment. Similarly the pivoted vane and operating electromagnet are carried by a lower detachable plate 28 which may be removed without disturbing the contact mechanism. The casing F is fitted with glass side wall 1 for inspection purposes. The disc 34 is adapted to be moved in either direction from the normal position shown according to the manner in which the electromagnet E is energized, contacts being made in either of the displaced positions and if necessary also in the normal position. The movement of the disc 34 is limited by rollers 49 carried by pivot pins 48 sliding in slotted guides 47, the rollers thus acting as yieldable stops. The contact bar is held in its normal position as shown in Fig. 3 by weighted arms 23 pivoted at 24 and bearing adjustable screws 26 carried by a plate 25 secured to the contact carrier 12. When the carrier 12 is displaced in either direction the corresponding arm 23 is raised and returns the bar 12 on deenergization of the relay. The operating electromagnet comprises U-shaped cores 44 at opposite sides of the vane 34, each carrying a winding 45 and a third core 38 arranged transversely and carrying series-connected windings 40. In a modification, the third vane is omitted, one of the U-shaped cores being provided with an extra limb and pole piece. Adjustable balance weights may be provided on the vane spindle in this modification. Specification 166,879 is referred to.
Patent GB-752000-A (GB)
Title: Diazotype photoprinting material
Inventor: FREDERICK JOSEPH EDWARD
IPC: G03C1/61
Filed: 1954-03-29
Abstract: 752,000. Diazotype materials. GENERAL ANILINE & FILM CORPORATION. March 29, 1954, No. 9190/54. Class 98 (2). A diazotype material comprises a base having a dried precoat, of from 1 to 3 parts of alumina of particle size up to 10 microns and 1 part of a film-forming basic or amphoteric nitrogenous binder, sensitized with a light-sensitive diazo compound and an azo coupling component. Binders specified are casein (including its sodium salt), alkali-soluble vegetable proteins such as soya protein, gelatine, glue, water-soluble condensation products of lower aldehydes (e.g. formaldehyde) with dicyandiamide, guanidine, guanyl ureas, biguanides or melamine, and water-soluble synthetic polymers and resins containing basic nitrogen or amino groups which are anion exchange resins. Suitable diazo compounds and azo coupling components are specified and the sensitizing solutions may contain the usual addenda. The base may be paper, cardboard, plastic film, cloth, metal or glass. Specification 751,111 is referred to.
Patent GB-136073-A (GB)
Title: Automatic Valves for Pneumatic Hose Fittings.
Inventor: QUIN FRANCIS JOHN
IPC: F16L29/02
Filed: 1919-04-14
Abstract: 136,073. Quin, F. J., and Park, W. H. April 14, 1919. Sleeve joints with screwed parts and with valves.-Relates to joints for pneumatic hose of the kind provided with automatic valves and adapted for use with pneumatic hammers, strainers, and the like. In the form shown in Fig. 2, the coupling b is internally screw-threaded at each end to receive the hose and the pneumatic tool respectively. The piston a is pressed back, as shown, on insertion of the pneumatic tool. In a modification, for attachment to a pneumatic strainer, one end of the union is fitted with an internally threaded union nut.
Patent GB-142995-A (GB)
Title: Improvements relating to the glazing bars of roofs and the like
IPC: E04D3/08
Filed: 1919-04-14
Abstract: 142,995. Hope, R. W., Hope & Sons, H., and Lloyd, F. J. April 14, 1919. Addition to 103,418. Glazing roofs.-A bracket stop b of the kind described in the parent Specification, for fixing the glazing-bars a to the purlins of roofs and retaining the glass in position. is bolted to a steel plate p, preferably T-shaped, which is: screwed to the purlin &c.
Patent GB-661239-A (GB)
Title: Improved can opener
IPC: B67B7/46
Filed: 1949-04-08
Abstract: 661,239. Tin-openers. AKTIEBOLAGET NILSSON & JOHANSSON and LINDHAHL, H. W. April 8, 1949, No. 9590/49. Class 66 A traction wheel tin-opener has a main plate 1, Figs. 2 and 3, pivoted at 35 to a wall bracket 34 which allows the opener to be locked at any convenient one of several angular positions, the main plate 1 mounting a shaft 2 carrying the traction wheel 3 and a gear wheel 4 which meshes with a gear 9 on the cutter shaft 8 when the cutter wheel 10 has been lowered to.dig into the top wall of the tin to be opened. This is effected by turning the traction-wheel crank-handle 23 clockwise, Fig. 2, an intermediate, secondary crank or ledge 32 of the handle 23 engaging a lug 33 on a disc on the shaft 2, and a shoulder 21 engaging a stud 22, so that a plate 16 swings towards the shaft 2 and into the position shown in Fig. 2, a pin 14 passing through an arcuate slot 15 in the main plate being secured to the plate 16 on the one side of the main plate 1, and to an arm 6, Fig. 3, pivoted at 5, Fig. 2, on the other. side, the arm 6 having a "blister" 7 to which is secured the shaft 8. A reverse movement of the crank-handle withdraws the cutter-wheel 10 from the can and raises guide ledges 11 (on the arm 6) from the top of the can. A secondary arm 26 is pivoted at 27 and biassed to the position shown in Fig. 2 by a spring 29 in a slot in the arm 16 and is slotted to receive a stud 28 on the arm 16. An outwardly directed flange 31 of the secondary arm 26 contacts a stud 30 on the crank-handle 23, when it is turned to withdraw the cutter wheel &c. the crank-handle 23 being freely mounted on the shaft 2.
Patent GB-114543-A (GB)
Title: Improvements in the Method of and Apparatus for Grinding the Necks and Stoppers of Glass and other Bottles.
IPC: B24B19/00
Filed: 1917-07-04
Abstract: 114,543. Beatson, Clarke, & Co., and Tweeddale, F. July 4, 1917. Processes, special; grinding interfitting parts together; round holes, enlarging and trucing.-The necks of bottles f are ground by a mandrel d fed with emery or other abrasive material. The mandrel d is secured in a chuck b on a spindle b' mounted in a headstock a. The stopper e is carried in a chuck c on a second parallel spindle c<1> mounted in the same lieadstock but at a slightly higher level. The stopper is ground by a pair of jaws, which encircle it and are fed with emery &c. The neck of the bottle that has previously been ground by the mandrel d is then finished off upon the ground stopper.
Patent GB-128258-A (GB)
Title: Improvements in Priming and Starting Apparatus for Internal Combustion Engines.
Inventor: MERCER ARTHUR ALEXANDER
IPC: F02N99/00
Filed: 1917-07-04
Abstract: 128,258. Mercer, A. A., and Maguire, F. July 4, 1917. Starting.-A priming-device consists of a U- tube D, E adapted to be passed through the opening of an ordinary petrol can and connected at both ends to the screwed cap A of the can, nipples B, C on the cap for connexion to the induction system and the atmosphere, and a small opening J for the admission of petrol. In the form shown. the tubes D, E are soldered into a chamber F having a screw plug in which the calibrated opening J is provided and containing a roll G of wiregauze.