baber/WOPTO huggingface dataset:
Patent GB-955496-A (GB)
Title: Improved control system
IPC: G05D3/14
Filed: 1962-02-12
Abstract: 955,496. Electric correspondence control systems. M.E.ATKINSON. Feb. 12, 1962 [Feb. 21,1961], No. 5345/62. Heading G1N. A closed loop positional servo system comprises a manually controlled command signal derived from a potentiometer 10 a positional dependent signal from a potentiometer 11 actuated by the controlled device such as nozzle 24, and a comparator 12 which provides a difference signal for controlling a motor 15 for the nozzle 24, the feedback signal bearing a predetermined relationship to for instance nozzle angular position over a limited portion only of its full range of travel and limited portion being movable within the full nozzle range. The total voltage across the feedback potentiometer 11 is arranged by means of resistors 30, 31 to be a fraction of that available across the control potentiometer 10 and the potentiometer 11 is driven through a clutch 20 which slips if nozzle movement exceeds the span delineated by stops 40, 41. The voltage range provided by the control potentiometer slider 29 may be equivalent to 180 degrees of movement whilst that of the feedback potentiometer slider may be restricted to 30 degrees. Thus if the slider 29 is for instance taken beyond the point 42, that is, beyond the voltage able to be followed by the feedback potentiometer, then constant positive signal results from the comparator 12 which drives the motor 15 in a "slew" mode until a limit switch opens disconnecting the drying current, or the control slider 29 is restored to a voltage within the limits 40, 41. If slider 29 is now moved so that the comparator signal is negative, the current will flow to the motor 15 through diode 38 and the motor will again be within the servo controlled zone of the system, the effective span of the feedback potentiometer 11 then being in a different relative position within the nozzle angular range than prior to the "slew" mode operation. Thus for command signals beyond the capability of the feedback potentiometer 11, the latter is driven to one extreme of its range whereupon if nozzle movement continues, the clutch 20 slips. A differentiating condenser 21 is used to increase the available motor current at the instant of movement of slider 29. In an alternative arrangement (Fig. 3 not shown) potentiometers 10 and 11 span equal voltages but the slider 29 operates one of two switches at each extreme of movement so as to inject a fixed additional potential into the comparator 12 and initiate slew mode motor operation.
Patent GB-561458-A (GB)
Title: Lift control mechanism for earth-excavating scrapers
IPC: E02F3/64
Filed: 1942-04-21
Abstract: 561,458. Excavators. LE TOURNEAU, Inc., R. G. April 21,. 1942, No. 5360. Convention date, Aug. 1, 1941. [Class 68 (i)] An earth excavating scraper comprises a bowl 1 mounted on rear wheels 2 and detachably pivoted at 6 to a yoke 8 supported by a swivel wheel truck 9, the yoke 8 carrying a tripod 15 to which a push bar 12 is detachably pivoted at 13; the push bar 12 is slidably supported in a bracket 11 carried by the bowl, and a control cable 16 passes over a pulley 19 on the push bar to an anchorage 20, the cable 16 controlling raising and lowering of the bowl. In another form, the yoke 8 and swivel truck 9 are replaced by a heavy vertical yoke pivoted for lateral swinging to a two-wheel tractor, the yoke being incapable of vertical movement relative to the tractor. The two forms are interchangeable. The Specification as open to inspection under Sect. 91 refers to the use of. the device with implements other than scrapers ; this subjectmatter does not appear in the Specification as accepted.
Patent GB-397539-A (GB)
Title: Improvements in or relating to electric cable systems
IPC: H02G15/013
Filed: 1932-02-23
Abstract: 397,539. Cable joints. SIEMENS BROS. & CO., Ltd., Caxton House, Tothill Street, London, and WOOD, H. G., Kinross, Leesons Hill, Chislehurst, Kent. Feb. 23, 1932, No. 5386. [Class 38 (i).] To provide for expansion and contraction of the joint filling material and of the cable sheaths at a joint in a cable system using lead-sheathed cables, such as a pressure cable system, the body of the joint casing is of a more or less flexible nature, preferably taking the form of a radially corrugated or fluted sleeve sl, and is connected to the cable sheaths ls bv circumferentially corrugated flexible end-pieces di. In a modified construction, one end-piece only is used, the sleeve sl being directly connected to the sheathing of one cable. In the construction shown, the sleeve and end-pieces are of thin copper and are welded or plumbed together and to the cable sheaths.
Patent GB-562943-A (GB)
Title: Improvements in transportable cranes
IPC: B66C23/48
Filed: 1943-04-05
Abstract: 562,943. Portable cranes ; hoists. WICKHAM ENGINEERING CO., Ltd., and ROLPH, F. G. April 5, 1943, No. 5436. [Classes 78 (iii) and 78 (iv)] A crane comprises a base having a column or post 29, 30 at the rear end, a pair of running wheels 12 at the front end, a pair of castor wheels 26 on opposite sides of the base at or near the rear end, a steering-head 17 at the rear end in which is mounted eccentrically a steering axle 20 carrying a steering wheel or wheels 21, and a controlling handle 22 which is raised and lowered to rotate the axle eccentric, from a manoeuvring position in which the steering axle takes at least the major part of the weight of the rear end of the crane, to a working position in which the castor wheels take at least the major part of said weight. The castors are provided with springs 28 which compress solid on load, and their wheels 26 are small and run on small axles 27 so that these wheels will not run freely when heavily loaded but tend to lock. The base consists of two channel-shaped arms 10 closed by plates 11 and connected by transverse members 13, 14 to which a box-section beam 15 carrying the . steering-head 17 is secured. The column comprises four steel angles 29, 30 connected by plates 31, 36 and bars 32, 33. A carriage 44 formed with a platform 47 is provided with wheels 45, 46 running on the front posts 29 and can be raised and lowered by a hand-operated. winch 48 and rope 50 passing over pulleys 39, 52. When the platform is not in use it can be folded back inside the column as shown in broken lines. A jib 38 is pivoted on a shaft 37 at the top of the column and is adjustably secured at any desired angle by means of links 41 and a pin 42. When the jib is to be used, the hoisting rope is passed over the pulley 39 to a sheave 51 on the end of the jib. The base, the column, the jib, and thehoist carriage may each be made as a separate unit.
Patent GB-329382-A (GB)
Title: Manufacture of moulded or rolled articles
IPC: C08K3/34
Filed: 1929-02-19
Abstract: 329,382. Boorne, W. H. Feb. 19, 1929. Composite tiles; ornamenting.-Tiles, slabs, and other bodies are made by moulding or rolling under heat and pressure a powdered mixture of an acid binder comprising natural or synthetic resin, pitch or the like, and clay, a basic substance such as lime, a filler, and water in the proportion of about 2 to 8 per cent of the weight of the powder. In an example the powder comprises 28 parts by weight of pitch, 21 parts of clay, 1 part of lime, 20 parts of sawdust, 20 parts of sand or slag and 8 parts of water. This composition may be used alone or as a backing for a facing layer which may comprise a mixture of 4 parts of china clay, 2 parts of white rosin, “ part of lime, 2 parts of pigment and 2 parts of a liquid vehicle such as sub-turps. The surface layer cracks due to the shrinkage on drying, and under the pressure of moulding the backing percolates through the fine cracks to produce a decorative crazed effect. Other effects may be produced by stencilling and relief moulding, and the percolation of the backing through the cracks may be prevented by a layer of paper or the like.
Patent GB-290562-A (GB)
Title: Improvements in and relating to excess voltage safety devices
IPC: H01J17/40
Filed: 1928-02-21
Abstract: 290,562. Seibt Fabrik Elektrischer und Mechanischer Apparate, Dr. G., and Salomon, A. May 14, 1927, [Convention date]. Protective arrangements.-An excess voltage safety device has two electrodes E<1>, E<2> mounted in a glass vessel containing a rare gas, and shaped so that the heat developed by the discharge and the electrostatic force between the electrodes cause one or both of them to expand and move into contact. The expanding electrode E<2> may be of zig-zag shape, or both electrodes may be slightly bent towards one another. The filling may be neon at a pressure of 6 mm.
Patent GB-491023-A (GB)
Title: Method of and means for preventing corrosion of metal parts in cooling or heating systems
IPC: C23F11/18
Filed: 1937-02-24
Abstract: 491,023. Preventing incrustation and corrosion. I. G. FARBENINDUSTRIE AKT.-GES. Feb. 24, 1937, Nos. 5602, 5603, and 5604. Convention dates, March 31, 1936, Nov. 19, 1936, and Dec. 12, 1936. [Class 123 (i)] Corrosion is prevented in water cooling and heating systems in which no substantial evaporation occurs, by the addition of compounds of alkali metal and chromic acid in such proportions that the pH value lies between 5 and 7, preferably at 6. A pH value of 7 can be obtained with a mixture of alkali monochromate 75 parts and alkali dichromate 25 parts. A pH value of 5 can be obtained with a mixture of alkali monochromate 9 parts, and alkali dichromate 91 parts. A pH value of 6 can be obtained when the water contains 1 per cent of a mixture of alkali monochromate 22 parts, and alkali dichromate 78 parts. Deposits from such solutions can be prevented by adding 1-2 per cent of chlorates and /or perchlorates. The composition may be used in the form of pastilles or tablets, in which case carbonates or bicarbonates may also be added, in order that the liberated carbon dioxide may break up the tablet. The monochromate may be replaced by caustic alkali or alkali metal oxide which forms the monochromate by reaction with the bichromate.
Patent GB-1131474-A (GB)
Title: Epoxidised polymers and their production
Inventor: DANJARD JEAN-CLAUDE
IPC: C08G59/34
Filed: 1966-02-09
Abstract: 1,131,474. Epoxidized conjugated diene polymers. SOC. NATIONALE DES PETROLES D'AQUITAINE. 9 Feb., 1966 [12 Feb., 1965; 21 Jan., 1966], No. 5655/66. Headings C3E and C3P. An epoxidized polymer or copolymer of a conjugated diene is prepared by adding an aqueous solution of mono-perphthalic acid which includes between 10 and 15% by weight of the acid to a latex of the starting polymer or copolymer containing an amount of polymer or copolymer equivalent to at least 10% by weight of dry material and which is stabilized by the inclusion of a non-ionic soap in a quantity which is greater than or equal to 2% by weight of the dry material, the epoxidized polymer or copolymer being obtained as a micro-flocculate. The preferred amount of perphthalie acid is 10 to 11%, of dry material between 10 and 15% and of non-ionic soap 5% of the weight of the dry material. The microflocculate may be filtered and washed to give a fine powder. By the term " microflocculate " is understood flocculates of particle size 0À1 to 1 mm. and " fine powders" is understood powders having a particle size from 0À25 to 2 mm. Polybutadiene is the preferred polymer, although natural rubber, gutta percha, polyisoprene, polychloroprene and butadiene-styrene are also specified. An ethylene polyoxide or a polyglycol ester of a fatty acid may be the non-ionic soap. The monoperphthalic acid may be the technical acid containing about 60% acid. The products may be cross-linked by conventional vulcanization agents or those of epoxy bridges.
Patent GB-546921-A (GB)
Title: Improvements relating to telephone systems
IPC: H04Q3/62
Filed: 1941-05-02
Abstract: 546,921. Automatic exchange systems. SIEMENS BROS. & CO., Ltd., DURKIN, E. W., and PETERS, C. L. May 2, 1941, No. 5709. [Class 40 (iv)] In an arrangement by which privileged subscribers on a private automatic exchange may make and receive junction calls without tying up the local switches, such subscribers are provided with a key connected to a third wire for controlling a diverting relay the operation of which effects the direct connection of the line to a junction. The key also enables the subscriber to enter a busy local connection. As shown in Fig. 1, each junction terminates in a finder, and the several finders are provided with a chain start circuit which when all the junctions are in use causes a busy signal to be given. Actuation of the key MEK operates the diverting relay R in series with the start relay S of an idle junction. These relays hold over the loop, and the latter bridges the junction MEJ and causes the finder JF to move into engagement with the calling line. Relay B pulls up and completes the connection to the junction through line relay A which holds B and connects up BB to extend the chain start circuit,'while relay R remains held in the test circuit under the control of B. The subscriber sets up the call by dialling. The subscribers' lines and junctions are provided with jacks EJ, JJ at a manual switchboard to enable an operator to set up incoming and outgoing calls. The operator may be called over a local finderconnector link, her position in the connector test bank being wired back to an extra wiper of the finder in order to light an individual calling lamp, Fig. 2 (not shown). Plugging into the jack EJ releases the local connection, and plugging into the jack JJ operates relay BB to busy the junction. When a privileged subscriber sets up a local call, battery is applied over the finder and wire d to energize relay RW, which locks to the test wire and connects the key MEK to wire d in order that the subscriber may operate the connector test relay H over an extra winding if the wanted line is busy. The two facilities provided by the key MEK are distinct, and the connections may be arranged so that a subscriber is given either or both facilities as desired. In a modification, Fig. 3 (not shown), the manual switchboard is of a simple cordless type with one connecting circuit per junction. On an incoming call, the operator calls the wanted subscriber over the local finder-connector link, an incoming call relay being operated in series with the cut-off relay, and instructs him to press his key MEK. A circuit is thus made for the diverting relay R and the start relay S of the waiting junction, and the finder JF sets itself using a second test wiper. The operator is provided with a key MEK to enable her to call a busy subscriber.
Patent GB-579434-A (GB)
Title: Improved means for controlling the operation of a vehicle engine
Filed: 1944-03-29
Abstract: 579,434. Controlling motor vehicles. FORD MOTOR CO., Ltd. March 29, 1944, No. 5819. Convention date, March 29, 1943. [Class 79 (v)] An interlocking device is provided between the clutch control rod and throttle control rod, whereby operation of the throttle is limited to a position corresponding to maximum engine torque output speed. whilst the clutch is disengaged, to prevent excessive revving of the engine, means being provided between said interlock and the throttle control to permit pperatioh of the throttle control without opening the throttle beyond said limiting position. An adjustable stop 26 on the clutch control rod 16 abuts against one end of a pivoted lever 18. The other end of the lever abuts against the adjustable stop 27 on the throttle control rod 17, so that when the clutch pedal 14 is depressed the throttle 13 can be opened by an amount corresponding to maximum engine torque output speed, additional movement of the accelerator pedal 15 being accommodated by the spring 28.
Patent GB-579207-A (GB)
Title: Improvements in or relating to tables with clamping devices
IPC: B25H1/08
Filed: 1944-03-30
Abstract: 579,207. Clamps for tables. HILTON & SON (LEIGH), Ltd., J., and CLEGG, J. B. March 30, 1944, No. 5931. [Class 61 (ii)] [Also in Group XIV] A clamping device is provided in conjunction with a table for the use of a person with only one arm. As shown, the clamp 1 is pivoted to two levers 2, 3, the former being free to slide and swivel on the shaft 4 which is fixed in a support 7. The lever 3 is free to slide longitudinally on the shaft 5, which is rotatably mounted in the support 7, but oscillates with this shaft to effect the clamping action of the member 1. The support 7 is mounted in a frame 8 which is slidable transversely on the table. A lever 10 is fixed to one end of the shaft 5 and is connected by rods 11, 12 to an annular disc 13 to which a lever 16, rotatably mounted on a shaft 17, is connected by rods 14, 15. A treadle 18 is connected by a rod 19 to a lever 20 fixed on the shaft 17 so that depressing the treadle results in the clockwise rotation of the shaft 5, so causing the clamp 1 to move downwards. A treadle 21 is connected to the shaft 17 by means of a rod 22 and lever 23 and, on depression, causes the clamp to be raised. A tension spring 24 has a pin effecting engagement with a curved slit in a metal strip fixed to the shaft 5, the lower end of the spring being secured to a spindle 26 provided with a hand lever 25. This lever enables the tension of the spring to act against either treadle so that the clamp may be held either in engagement with or away from the table. The height of the clamp is adjusted by means of a hand wheel 1c acting on a screw-threaded rod 1b.
Patent GB-177021-A (GB)
Title: Improved draught and dust protector for doors
IPC: E06B7/18
Filed: 1921-02-22
Abstract: 177,021. Lawrence, H. Feb, 22, 1921. Draught and dust excluders.-A draught and dust excluder for doors consists of a roller a adapted to rise and fall so as to ride over obstructions on the floor, by being mounted upon a strip of wood d hinged at its upper edge h to the door.
Patent GB-776800-A (GB)
Title: Improvements in vehicles
IPC: B60K17/342
Filed: 1955-03-01
Abstract: 776,800. Motor vehicle driving gear. BERGERAT, MONNOYEUR & CIE., H. March 1, 1955 [March 5, 1954], No. 6034/55. Classes 79(1), 79(2) and 79(4). A vehicle has balance beams 3 each carrying a wheel or an endless track sprocket and each being pivotally mounted on the vehicle chassis about a transverse axis which coincides with the axis of a main drive shaft 8, each beam being pivoted on a hollow trunnion 13 detachably secured to the vehicle chassis, the main drive shaft being journalled in the vehicle chassis and being connectible to a coaxially disposed stub shaft 9 journalled within the hollow trunnion and carrying a sprocket 10 to transmit drive to the wheel or endless track sprocket. Each beam 3 forms a hollow casing with a bearing 17 to surround the trunnion 13 which is secured to the side of the chassis by means of bolts 14 and an inturned flange the shoulder 16 of which engages an inturned flange on the beam 3 to hold machined surfaces 6 and 7 on the beam and chassis in sliding contact. Registering within the inturned side flange of the trunnion 13 and secured by bolts 22 to the chassis is a plate 21 supporting another plate 21a on posts 20 ; the plates 21, 21a carrying bearings for the stub shaft 9. The shaft 9 is coupled to a steering clutch 27 and a brake drum 28, of conventional design, with a shaft 8 connected to a bevelled driving gear wheel 26.
Patent GB-386468-A (GB)
Title: Improvements in or relating to hydraulic brake mechanism for vehicles
IPC: B60T11/224
Filed: 1932-02-29
Abstract: 386,468. Fluid-pressure brakes. BOPP VON OBERSTANT, PETER FRANZ, GRAF, and LIEBHOLD, F., 18, Katharinenstrasse, Halensee, Berlin.-(Assignees of Auto Product Ges. ; 17, Katharinenstrasse, Halensee, Berlin.) Feb. 29, 1932, No. 6061. Convention date, Feb. 28, 1931. [Class 103 (i).] In hydraulic brake mechanism for vehicles comprising a master cylinder having two pistons of different diameter for filling the brake cylinders with fluid, whereupon the larger remains stationary and the smaller applies pressure, during the filling operation the movement of the push-rod is transmitted by a coupling to the larger piston and by the latter to the smaller piston, and during pressure application the coupling is disengaged and movement is transmitted by the push-rod to the smaller piston. The position at which the coupling is disengaged is adjustable to allow play due to wear in the system to be compensated. The small piston c fits in a recess m, and is moved forward by the larger piston b, which is moved by pawls and a driving member o fixed to the push-rod p. The pawls s are pivoted on diametrically opposite eyes q<1> provided on a disc q fixed to the hub b<1> of the piston b. When the pawls s reach the end of a guiding sleeve n they are moved outwards against springs t to disengage this coupling by inclined faces on the member o, the sleeve n and the ends of the pawls. These inclined faces facilitate also the return movement on brake release. The disc q carried by the piston b is also provided with arms q<2> on which are pivoted bell-crank levers w having noses w<1> engaging arms u<1> fixed to a disc u on the hub c<2> of the piston c. At the completion of the movement of the pistons by the pawls s a second driving member y fixed to the push-rod p engages rollers x on the bell cranks wand thus operates the piston c at a lower speed and increased leverage by means of the bell cranks, arms u<1> and the disc u. The mechanism may be adjusted to compensate for wear by screwing the casing m containing the coupling mechanism further on to the cylinder a. The piston a abuts, in release position on a perforated wall g bearing on a packing sleeve supported by the cylinder cover k. A packing sleeve d is arranged between the smaller piston c and the cylinder wall. Return springs f, h bear on the pistons. A perforation b<4> in the piston b and a groove p<2> in the part of the rod p sliding in the hub of the piston c prevent the formation of air cushions. In released position the system is replenished by a reservoir l and a passage a<5>.
Patent GB-142244-A (GB)
Title: An improved trousers press
IPC: A47G25/72
Filed: 1919-03-11
Abstract: 142,244. Skelton, W. March 11, 1919. Trouser presses.-These consist of a central board a, Fig. 1, with raised pieces b at the top and bottom carrying pressure devices e or i to bear on top and bottom boards g, g<1>. The pressure boards are preferably of plywood, and the pieces b may be grooved so that the boards g, g<1> slide in and out. The pressure devices consist of pivoted pieces e, e<1>, &c. with underneath cams f, Fig. 2, which bear on the pressure boards. A modified form of pressure device consists of crosspieces i which are slipped under springs h. Where the pieces b are grooved, the pressure devices are somewhat countersunk on the pieces b.
Patent GB-363233-A (GB)
Title: Improvements in means for ventilating the crank cases of internal combustion engines
IPC: F01M13/00
Filed: 1931-02-26
Abstract: 363,233. Ventilating crank cases. ANDERSON, J. T., Arundel, Badminton Road, Downend, Gloucestershire. Feb. 26, 1931, No. 6078. [Class 7 (ii).] To ventilate the crank case, a detachable hood A is fitted into the oil inlet and the hood is joined to a flexible tube C to discharge the crank-case fumes at the rear of the vehicle to which the engine is fitted.
Patent GB-1411528-A (GB)
Title: Inflatable cushion or pillow
IPC: A47C16/00
Filed: 1974-02-11
Abstract: 1411528 Inflatable cushions G B MATTHEWS 11 Feb 1974 06165/74 Heading A4M An inflatable cushion or pillow includes lateral portions 14, 15 to rest on the user's shoulders to support the sides of the head and has a valved tube 11 for inflation by mouth, the cushion being mounted on a stiff backboard 16 provided on its rear surface 17 with a facing of rubber, synthetic fabric or other material having non-slip properties when engaged with a seat back 18. The cushion may include a vent valve to prevent explosive decompression when used in aircraft.