baber/WOPTO huggingface dataset:
Patent GB-1056831-A (GB)
Title: Improvements in or relating to industrial lift trucks
Inventor: GOODACRE CECIL
IPC: B66F9/07
Filed: 1963-01-11
Abstract: 1,056,831. Controlling vehicles. LANSING BAGNALL Ltd. Jan. 2, 1964 [Jan. 11, 1963; Aug: 6, 1963], Nos. 1372/63 and 31054/63. Heading B7H. [Also in Division B8] In a masted lift truck, an operator's platform is mounted on the lifting carriage (see Division B8), and is provided with controls for controlling the driving motors and steering motors for the ground wheels 12. The control box 40 contains a steering arm 66 pivotally mounted at 67 and provided with a projection 68 connected to a push rod 69 which is slidable in brackets 70 and which is acted on by centering springs 72. Steering handles 75 connected by a spindle 76 provided with cams 77, are rotatably mounted about their own axes on the steering arm 66, and the cams engage with a series of microswitches 78 which are connected to switches in a control box 59 so that the speed of the motors 47, driving the wheels 12, can be regulated. Microswitches 178, 179 are operated when the steering arm 66 is rotated about the pivot 67 to rotate the steering motor 57 for steering the wheels 12. When the wheels have been rotated sufficiently the steering arm is centred again and thus regulates the degree of the steering movement. The wheels 12 are supported on turntable mountings, as described in Specification 780,487, and each mounting is provided with a steering arm 55 connected by a track rod 53 to a triangular lever 54. One of the steering arms 55 is provided with a toothed segment which meshes with a pinion 56 on a spindle extending from a gear-box 57 driven by a reversible electric motor 58.
Patent GB-886988-A (GB)
Title: Improvements in catalysts for the sweetening of petroleum products
Inventor: DOPORTO MARIANO LUIS
IPC: B01J27/06
Filed: 1960-01-15
Abstract: A catalyst for sweetening petroleum hydrocarbon distillates is prepared by placing clay in a cupric chloride solution (containing optionally e.g. ammonium chloride) and evaporating off excess water until the desired amount of water, e.g. 8-15% by weight of the catalyst remains.  Preferably the catalyst contains no more than 12,3% by weight of CuCl2,2H2O, e.g. 10%.  In Examples 8/20 mesh Surrey clay is used.
Patent GB-594128-A (GB)
Title: Device for shaping sheet metal
IPC: B21D11/02
Filed: 1944-08-16
Abstract: 594,128. Stretch bending. CAIRNS CORPORATION. Aug. 16, 1944, No. 15668. Convention date, July 9, 1943. [Class 83 (iv)] Apparatus for shaping a metal sheet comprises a form 10 having the desired contour over which the said sheet is shaped and jaws J, for gripping the four sides of the sheet S, which can be moved relative to the form, e.g. to tension the sheet before shaping and allow controlled movement when the form is moved against the sheet by its plunger 12. The jaws may be closed to grip the sheet by bolts 47, Fig. 4, or by hydraulic plungers 29a, Fig. 3, toggles 30 and lever 27. The jaw supports 35, Fig. 2, are pivoted at 36 to the frame and can be moved by hydraulic plungers 38. In a modification, the jaw supports 40, Fig. 4, for the sides of the sheet S can be moved vertically by plungers 41 and in another modification the cylinders of these plungers can be moved horizontally by other plungers. Instead of the hydraulic control, other forms of actuating mechanism may be used.
Patent GB-111391-A (GB)
Title: Improvements in or relating to Magneto-devices for Internal-combustion Engines.
IPC: H02K21/22
Filed: 1917-01-31
Abstract: 111,391. Villiers Engineering Co., Funck, G., and Farrer, F. H. Jan. 31, 1917. Guards. - A flywheel for an internalcombustion engine is totally enclosed within a light casing C secured to the backplate A, which is extended beyond the periphery of the flywheel B. The casing may be a dished stamping and may be secured to the periphery of the plate A by means of pins and bayonet slots, or by means of studs and nuts D.
Patent GB-800488-A (GB)
Title: A motor scooter
IPC: B62M7/06
Filed: 1957-01-16
Abstract: 800,488. Motor scooters. NSU WERKE AKT.-GES. Jan. 16, 1957 [Jan. 20, 1956], No. 1601/57. Classes 79(3) and 136(3) A motor scooter frame comprises a main tubular member 2 which extends from the steering column 1 to the support for the rear wheel suspension at 3 and a saddle carrying member 4 which is connected with the main member 2 at 3 and 5. The fuel tank 6 is held between the rear part 7 of the member 2 and the saddle carrying member 4 in rubber pads 8, 9 placed around the members 2, 4. To prevent the tank from being laterally displaced its upper surface is formed with a ridge which fits between two tubes which form the saddle carrying member 4. The member 4 may also carry a pillion and may be rearwardly extended for the attachment of a carrier. The forward part of the power unit may be suspended from the frame by a link 11, a telescopic leg 14 being provided between the flexibly mounted rear wheel 13 and the frame. Alternatively, the engine may be fixed to the frame and a flexibly swinging suspension provided only for the rear wheel and the gearing.
Patent GB-288953-A (GB)
Title: Improvements in struts for mounts, calendars and the like
IPC: A47G1/14
Filed: 1928-01-18
Abstract: 288,953. Dennis, E. H. Jan. 18, 1928. Card stands.-A rear strut for Supporting a mount, calendar &c. is formed by cutting and bending a cardboard &c. blank to form a portion T, secured to the mount &c., a strut proper T<1> with bent up side portions 0, P having notches S in which engage a bent over portion Q to hold the strut in position. Specification 248,666 is referred to.
Patent GB-1083526-A (GB)
Title: Apparatus for measuring the reverse recovery charge of fast semiconductor diodes
Inventor: HORNAK TOMAS
IPC: G01R31/26
Filed: 1966-01-13
Abstract: 1,083,526. Measuring diode recovery charge. V#YZKUMN#Y 
STAV MATEMATICK#YCH STROJ
. Jan. 13, 1966 [Jan. 28, 1965], No. 1639/66. Heading G1U. In an apparatus for measuring the reverse recovery charge of a fast semi-conductor diode, the diode D is pulsed from a generator G and the voltage produced across a load resistor R is applied to an input 5 of a sampling oscilloscope 1 having a CRT display 2. The sampling oscilloscope effects a time transposition of the reverse recovery waveform to enable it to be displayed. The charge flowing in the reverse recovery process is measured by developing a voltage which is applied to a calibration input of the sampling oscilloscope in such a manner as to shift the level of the display showing the reverse recovery so that it is equally balanced about the zero axis. The system operates in a self balancing manner to keep this calibration voltage at a value appropriate to maintain the balance, and this value is proportional to the charge to be measured. To derive this voltage, the reverse recovery waveform, applied via the sampling oscilloscope to the vertical plate 4 of the CRT, is also applied via a condenser 10 to a detector 11, 12. As the waveform swings negative into the reverse recovery region, the detector passes a pulse which triggers a gating pulse generator 13. This generator provides a pulse, whose width is adjustable, which is supplied to open the gates 14, 15. The reverse recovery waveform itself is passed via the gate 14 to the integrating network 16, 17, and the integrated signal is passed via a high gain amplifier 18 to a meter 19 and to the other input of the gate 15. The voltage is therefore passed for the period allowed by the generator 13 to the calibrating input 6 of the sampling oscilloscope. The generator 13 is set to provide a pulse slightly longer than the time required for the recovery process to be completed. Near the end of each time base sweep provided from the sampling oscilloscope a trigger signal is derived at the output 7 which operates a switch 9 via a switching pulse generator 8 to discharge the capacitor 10. The system establishes a balance such that the indicator 19 shows a voltage proportional to the recovery charge to be measured.
Patent GB-1208752-A (GB)
Title: Improvements relating to electrically operated indicators
Inventor: JONES FREDERICK RAYMOND
IPC: H02K1/14
Filed: 1967-01-11
Abstract: 1,208,752. Control of stepping motors. PLESSEY CO. Ltd. 8 Jan., 1968 [11 Jan., 1967], No. 1642/67. Heading H2J. In a digital indicator, ten electromagnets are spaced around a permanent magnet 7 and are separately energizable to provide a selected one of ten digital indications. The perment magnet is secured to a hollow shaft associated with a digital drum 9. The energizing coils of the indicator embrace individual salient polepieces which are defined by magnetic ring members 17, 18, in abutting relationship. The outer peripheral portions 19, 20, of the ring members extend outwardly in opposite directions generally perpendicular to the plane of the members 17, 18. The ring core is located by lugs 25 engaging in slots in a printed circuit board 24. The polepieces comprise strips of magnetic material inteposed between the ring members and shaped to provide a preferential direction of rotation of the indicator.
Patent GB-157949-A (GB)
Title: Improvements in and relating to smelting furnaces
IPC: F27B3/26
Filed: 1921-01-10
Abstract: 157,949. Corsalli, W. March 20, 1918, [Convention date]. Addition to 157,948. Void [Published under Sect. 91 of the Act]. Open-hearth furnaces; slag, collecting. - In an open hearth furnace for use in the manufacture of iron and steel, the slag chamber g and the regenerators m are not built into the same structure, but are separated by a length of duct, in which the reversing-valve l may be arranged. The furnace is fired by gas and air supplied through ports at one end, and at the opposite end the products of combustion divide, part passing to the slag chamber and the regenerator through the flue f, and the remainder to an auxiliary furnace g', which may serve for reheating, roasting, calcining, or agglomerating, and may be of rotary form. From the reversing-valve l the products pass through one or other of the reegnerator chambers, and a second valve n to the chimney. The air to be heated enters at the valve n passes through a regenerator chamber, the valve l, and flue q, and is delivered into the furnace through the port b.
Patent GB-1122941-A (GB)
Title: Pattern tracing apparatus
IPC: B23K7/00
Filed: 1966-01-13
Abstract: 1,122,941. Transistor amplifier and threshold circuits. STEWART-WARNER CORP. 13 Jan., 1966 [13 Jan., 1965], No. 1664/66. Heading H3T. [Also in Divisions G1 and G3] Amplifier circuits.-An amplifier comprises a PNP input stage 282, the output of which is fed to an NPN stage 294. The output of stage 294 is fed to parallel inputs of a floating pushpull emitter follower type of power amplifier comprising the opposite conductivity transistors 310 and 312, the output of which drives a load 53. Threshold circuits.-A circuit for determining whether an input signal is at level X; X/2 or O comprises two input amplifier stages 168; 192, the first having a little negative feed back. The output of the second stage is coupled to two PNP transistors 202, 222 which act as threshold detectors with levels set between O and X/2 and between X/2 and X respectively. The state of transistors 202 and 222 controls corresponding NPN power amplifiers 212, 234 which operate relays K 2  and K 3 .
Patent GB-1487866-A (GB)
Title: Phosphating of metals
IPC: C23C22/77
Filed: 1975-01-15
Abstract: 1487866 Phosphating metals PYRENE CHEMICAL SERVICES Ltd 15 Jan 1975 [17 Jan 1974] 1685/75 Heading C7U A phosphating bath for e.g. iron or steel surfaces comprising zinc phosphate and H 2 O 2  is maintained at the desired free to total P 2 O 5  ratio by adding an aqueous solution (pH 6À5 to 10) of an alkali or ammonium phosphate and a peroxide, e.g. H 2 O 2  or carbamide peroxide. The phosphating bath may also include Ni, nitrate, chloride, sulphate or fluoride, e.g. silicofluoride, ions. The solution may contain sodium pyrophosphate.
Patent GB-124854-A (GB)
Title: Improvements in or relating to Machines for Removing Bark, Bast and similar Material from Logs and like Articles.
Inventor: HELLSTROEM GUSTAF
IPC: B27L1/10
Filed: 1918-01-29
Abstract: 124,854. Hellstrom, G. Jan. 29, 1918. Bark, removing.-In machines for barking logs, the depth of out is regulated by a device which is arranged to be at the same side of the log as the cutters. In the machine described, the cutters are arranged on a rotary disk 3, and the log A is supported on both sides of the cutters by rollers 8 mounted on levers 9 adapted to be adjusted independently by cam-disks 14<a> on a shaft 13, whereby the depth of cut is regulated; or the depth of cut may be regulated by adjusting the height of the cutter disk 3. The leg is fed and rotated by an inclined roller 30, and the rate of feed can be regulated both by adjusting the inclination of the roller 30 by levers operated from a cam-disk on the shaft 13, and by regulating the speed of the roller by means of adjustable friction gear 37a, 37b. Pressure is exerted on the log by a roller 18 carried by a weighted lever 19, and the lever can be rocked through toothed gearing by a hand-wheel 29 to raise the roller 18 or to increase its pressure on the log. An alternative log feeding and rotating device comprises a rotating helical spring metal blade the pitch of which can be varied by endways pressure. The bark is discharged by a shoot 45 to a conveyer. The cutters and the cut-regulating device may be arranged at the side of or above the log.
Patent GB-289505-A (GB)
Title: Improvements in or relating to self-propelled vehicles
IPC: B61C15/02
Filed: 1927-01-21
Abstract: 289,505. Alley, S. E. Jan. 21, 1927. Addition to 239,932. Railway locomotives, steam. - The steampropelled locomotive described in the parent Specification is provided with changespeed gearing and the engine may be supported universally at two points spaced apart in the axis of the crankshaft. As described in the parent Specification an engine 15 with vertical or other than horizontal cylinders is situated between the vehicle axles and drives the wheels 11, 12 through chains 18, 19, the chassis frame 10 carrying an overhanging boiler 13 at one end and at the other end either a balancing fuel or water container 14 or the end of a following coach. The change-speed gear may be epicyclic but in the construction shown slidable gear wheels 56, 57 on the crankshaft 20 are made to mesh, one at a time, with gear wheels 52, 53 fixed on a countershaft 21 carrying chain sprockets 54, 55 by which the vehicle axles are driven. The change-speed gear is enclosed in two separate three-part casings 30 which are fixed to transverse frame members 17 and support the engine and countershaft in spherical bearings 25, 26, 38, 48.
Patent GB-718622-A (GB)
Title: Improvements connected with electric plug and socket connectors
Inventor: WHITE THOMAS LEONARD
IPC: H01R13/56
Filed: 1952-01-23
Abstract: 718,622. Two-part couplings. FALK, STADELMANN & CO.,' Ltd. Jan. 21, 1953, [Jan. 23, 1952.] No. 1825/52. Class 38 (1)] The pins 7 of a three-pin plug are secured in an insulating base plate 5, Figs. i and 3, by providing a pair of flats 8 on each pin which engage in slots 6 in the edge of the base plate, the pins being retained therein by a cover. 10, projections 11 on which enter two of the slots and bear on the pins therein and a thickened portion 12 of the wall of the cover bears on the earth pin in the other slot. In Fig. 4, slots 15 radiate from a central aperture 14 in the base plate 13, the pins 7 being held against the closed ends of the slots by an insulating block 14a fitting between the pins and being formed either as a part of the cover or as a separate member held in position by a screw securing the cover to the base plate.
Patent GB-535449-A (GB)
Title: Improvements in or relating to the dewaxing of oils
IPC: C10G73/06
Filed: 1940-01-31
Abstract: 535,449. Dewaxing oils. TEXACO DEVELOPMENT CORPORATION. Jan. 31, 1940, Nos. 1944 and 1945. Convention dates, Feb. 11, 1939, and Feb. 24, 1939. Drawings to Specification. [Class 91] Oils which contain only a small amount of wax are de-waxed by a continuous process which comprises mixing a de-waxing solvent with the oil, chilling and filtering, and re-cycling into the mixture prior to filtering a pre-determined portion of the removed wax so as to increase the wax content of the oil and so enable a wax cake to be formed which is easy to filter on the continuous rotary filter employed. It is stated that oils which have only a small content of wax deposit a thin cake of wax which is difficult to discharge from the filter and the re-cycling of the wax according to the present invention overcomes this difficulty. The invention is particularly useful in de-waxing residual cylinder stocks. In a preferred form of the invention a selected fraction of the wax is recycled, namely, a fraction which contains comparatively little naturally occurring wax crystal modifying material. A diagram of a suitable apparatus is included. De-waxing solvents mentioned include aliphatic ketones, aromatic hydrocarbons, and low boiling petroleum hydrocarbons including naphtha, gasoline, pentane, butane and propane or mixture thereof.
Patent GB-138107-A (GB)
Title: Improvements in controllers for electric railways operated by means of high-voltage direct current
IPC: B61L3/14
Filed: 1920-01-21
Abstract: 138,107. Akt.-Ges. Brown, Boveri, et Cie. Jan. 21, 1919, [Convention date]. Controllers, drum., with auxiliary switches. - Traction motors are controlled by a drum with which is mechanically coupled means for operating- a number of auxiliary switches which are closed and opened to make and break the circuit connexions. Two motors M<1>, M<2> are shown with switches s, p<1>, p<2> for series-parallel connexion and switches 1 - - 6, a, b, c for resistance control. The drum S is provided at its lower part with a number of cams K to operate the switches a, b, c, s, p<1>, p<2>, each of which is provided with a blow-out coil G. In the first position of the controller, the main contactor A is operated by the connexions of the fingers A, C, and the actuating-circuit of the contactor 1 is completed. In the second position of the controller, the cams close the switches a, s, and the motors are connected in series with all resistance in circuit. Further movement cuts out resistance, the break and make of the circuit being in each case effected by the switches a, b, c. In positions' VIII, IX, X of the controller, the series switch s is opened, and the motors are connected in parallel by the switches p<1>, p<2>. Two sections of resistance are connected in circuit and are cut out by further movement of the controller.
Patent GB-696751-A (GB)
Title: Improvements in or relating to flying bodies
Inventor: REEVE LESLIE WOODHOUSE
IPC: B64D1/04
Filed: 1949-01-25
Abstract: 696,751. Releasing starting rockets. FAIREY AVIATION CO., Ltd. Jan. 19. 1950 [Jan. 25, 1949], No. 2032/49. Class 9(ii) [Also in Group XXXIII] Starting rockets 14 around a missile 10 are secured by the noses and tails, the noses by the lugs 18 fitting over the spigots 19 on the band 20, and the tails by the band 28 which is affixed by the arms 29 to the segmented collar 33 and 34. Before launching, the piston 22 in the sleeve 21 of the lug 18 isfreed, so that, on the rockets firing, the sleeve 21 moves towards the band 20 to compress the spring 24. When the thrust of the rockets falls below the pressure of the spring 24, the sleeve 21 comes away from the spigot 19 and the released noses are swung outwards because of the air pressure on the vanes 17. The arms 29 pivot about the pin 31 causing the pin 38 to be withdrawn by the claws 32 and allowing a part of the sectional collar to fall away with its associated rocket.
Patent GB-1533323-A (GB)
Title: Method of producing carbonate compounds comprising calcium and/or magnesium carbonate
IPC: C01F11/18
Filed: 1976-01-19
Abstract: 1533323 Calcium and/or magnesium carbonate VEREINIGTE ALUMINIUM-WERKE AG 19 Jan 1976 [21 Jan 1975 (2) 31 Jan 1975 8 Jan 1976] 02053/76 Heading C1A [Also in Division D2] Dolomite is calcined at 1000-1100 C. and the resultant oxide mixture of calcium and magnesium is suspended in at least 20 parts by weight of water per 1 part oxide, and carbon dioxide gas is introduced into the suspension to convert the hydroxides back to carbonates. A basic calciummagnesium carbonate may be produced by calcining dolomite, slaking the product, suspending in 20-60 parts of water per I part of oxides and concentrating the suspension after CO 2  treatment. A basic magnesium carbonate is made by using 60 parts of water per 1 part of oxides in suspension, and removing undissolved calcium carbonate by filtration and heating the solution to 70-80 C. at at least 10 C. min<SP>-1</SP> until the Mg carbonate has precipitated. The product characteristically has lamellar particles with the fineness of particles being < 1Ám, and a whiteness exceeding 95%, with a high shape factor of at least 1:80.
Patent GB-136692-A (GB)
Title: Improvements relating to the Construction of Ferro-concrete Piles in situ.
Inventor: ROTINOFF ALEXANDER GEORGEVITCH
IPC: E02D15/04
Filed: 1919-01-28
Abstract: 136,692. Rotinoff, A. G. Jan. 28, 1919. Piles. - Piles, columns, &c. are made by depositing concrete in a spiral layer and compacting the concrete during its deposition by hammering. Fig. 2 shows apparatus for making a pile in situ. Into a bore-hole, the sides of which may be temporarily held by a casing and in which may be placed reinforcing - rods, is lowered a reservoir tube 1. The tube 1 carries, in bearings 16, 17, a rod 11 provided at its lower end with a screw 10, and at its upper end with a worm - wheel 12 feathered to it and gearing with a worm 13 driven by an engine 3. The rod 11 is allowed a small amount of lost motion through the bearings and wormwheel 12. Mounted on the rod 11 is a cam-wheel 14 which engages a similar wheel 15 on a monkey 5, which is free to rise and fall, but not to rotate. In operation, the tube 1 is filled with concrete through a lip 4, preferably before lowering, the tube being carried by a tower having a guiding- groove 20. The tube is lowered and the rod rotated to force the concrete out at the bottom, the travel of the concrete being assisted by propellers 100. The rotation of the rod causes the monkey to rise and fall rapidly to compact the concrete. As the concrete becomes compact, the reaction between it and the screw 10 gradually forces the tube out of the hole. In a modification, the tube 1 carries the screw and is itself rotated.