baber/WOPTO huggingface dataset:
Patent GB-466591-A (GB)
Title: Improvements in electric crane control gearing
IPC: B66D5/26
Filed: 1935-08-23
Abstract: 466,591. Winches. BRITISH THOMSON-HOUSTON CO., Ltd. Aug. 23, 1935, No. 23690. Void. Convention date, Aug. 23, 1934. [Class 78 (v)] The invention comprises electric crane control gearing having a mechanical brake with remote control or slow lowering. This brake automatically slips when the lowering speed falls below a predetermined lowvalue and is lifted for this purpose by oil pressure produced by a vane wheel driven by a small motor. In so far as the invention can be followed, it appears to comprise the bringing of a downward positive drive into operation when the weight of the load is insufficient to secure the necessary gravity action. The small motor, previously referred to is switched " in " and " out " by a centrifugal switch which at predetermined safe lowering speed cuts out the main driving motor and switches in the small motor to lift the brake. Should the speed of lowering drop still further, the centrifugal switch switches in the main driving motor again.
Patent GB-1347756-A (GB)
Title: Reduction of uranium hexafluoride
IPC: C01G43/06
Filed: 1971-04-19
Abstract: 1347756 Production of uranium hexafluoride BABCOCK & WILCOX CO 19 April 1971 [9 March 1970] 23707/71 Heading C1A Uranium hexafluoride is reduced by contacting a stream of gaseous UF 6  (optionally in pulsating flow) with a pulsating flow of a gaseous reducing medium to produce solid particles of reduced products, the reducing medium (e.g. steam/N 2  or C 2 F 4 ) being supplied to the reaction in such a way that it discharges through the accumulated solid particles, e.g. of UF 4  or UO 2 F 2 . Preferred temperatures are in the range 450-600‹ F. In the illustrated embodiment UF 6  is supplied to the reactor 10 via pipe 13 and is mixed with reducing medium supplied to said reactor by means of pipe 12 arranged so that gas discharging therefrom deflects from the internal surface 14 of the reactor base and is distributed generally throughout the cross-section of reactor 10. The reducing medium (e.g. steam/N 2 ) is supplied via valves 23 and 24 and pressure vessel 20, and the operation of said valves being controlled by cycling mechanism 25 so as to cause a pulsating flow of medium to pass to pipe 12. The particles accumulating in reactor 10 may be removed, e.g. by overflow pipe 18 if the reaction is to be run continuously and are prevented from leaving via gas outlet 16 by means of filter 15. The reduction products specified are UF 4  or UO 2 F 2  but UO 2  may also be produced by subsequent reduction of UO 2 F 2  with a reducing medium containing free hydrogen at temperatures of the order of 1500‹ F.
Patent GB-1328620-A (GB)
Title: Electronic braking system
IPC: B60T8/60
Filed: 1972-05-19
Abstract: 1328620 Anti-lock braking systems SOC ANON DBA 19 May 1972 [18 June 1971] 23720/72 Heading F2F An electronic braking system for at least one wheel R of a vehicle comprises at least one wheel speed sensor C which in use delivers a voltage which represents the speed of the wheel, an anti-lock unit L which, in use, and when a predetermined drop in voltage occasioned by braking of the wheel occurs, produces an antilock signal, and braking means F for the at least one wheel and responsive to an anti-lock signal to decrease the braking force. The output of the anti-lock unit L is connected to an inhibiting means, e.g. a transistor 32. A memorizing means is provided for memorizing a predetermined percentage of the maximum value of the voltage output of the sensor C prior to the advent of the production of the anti-lock signal. Comparing means, e.g. a differential amplifier comprising transistors 20 and 22, compares the memorized voltage with the voltage output of the sensor C and controls the output of the inhibiting means so that the anti-lock signal is inhibited as long as the voltage output of the sensor C is superior to the memorized voltage. Cancelling means, e.g. a diode 34, are provided for deleting the memorized voltage as soon as the voltage output of the sensor C becomes inferior by a predetermined amount to the memorized voltage. In the construction shown the memorizing means comprises a resistor divider 10, 12, a capacitor 16 and a diode 14, the diode 14 determining the difference between the maximum value of the sensor output and the memorized voltage.
Patent GB-1344229-A (GB)
Title: Method and apparatus for producing seismograms
IPC: G01V1/28
Filed: 1972-05-19
Abstract: 1344229 Seismic signal processing PETTY GEOPHYSICAL ENG CO 19 May 1972 [3 June 1971] 23742/72 Heading H4D Common depth point seismic traces are processed in a way which provides a velocity analysis of reflection events and suppression of trace portions occurring during time gates defined by the occurrence times and durations of events having certain velocities. In the Fig. 1a process, digital sample numbers representing the durations and the occurrence times of events on an edited common depth point set of traces are obtained at 104, events with unreasonable durations (wave periods) are rejected, and the remaining events are processed at 106 by squaring the occurrence times to obtain points in an X<SP>2</SP> versus T<SP>2</SP> Cartesian coordinate system (X being the source-seismometer offset associated with a trace, and T being trace time). Straight lines are fitted to trace-to-trace alignments of these points on a "least mean squares" basis. The velocities associated with the events are deduced from the slopes of the lines and the zero-offset trace times T 0  for the events are deduced from the intercepts of the lines on the T<SP>2</SP> axis. Events whose velocities are within limits set at 113 are identified as primary reflections and stored at 108. Events with velocities outside these limits are identified as coherent noise and stored at 114. The event times and durations from storage 108 or 114 may be plotted at 116. Static corrections for seismometer location are computed at 112 by determining the deviations of the points obtained at 106 from the straight lines fitted to them. Static corrections for source location are known or are computed by prior art (e.g. correlation) methods. The total static corrections are applied at 109 to the edited traces from storage 103. An output plot from which coherent noise has been deleted is obtained by transferring from storage 110 to output 115 only those corrected trace portions occurring in time gates corresponding to primary reflections stored at 108, or by suppressing corrected trace portions occurring in time gates corresponding to noise events stored at 114, then correcting the transferred or unsuppressed portions and stacking them. An output plot of coherent noise is obtained by suppressing trace portions occurring outside the time gates corresponding to noise events stored at 114. In a modification (Fig. 4, not shown) the transfer or suppression of trace portions occurs before the static corrections are applied.
Patent GB-1506068-A (GB)
Title: Bearing arrangement
IPC: F16C27/08
Filed: 1976-06-09
Abstract: 1506068 Bearings BLACK & DECKER MFG CO 9 June 1976 [10 June 1975] 23846/76 Heading F2A A bearing arrangement comprises a support frame 18, a bearing housing 16 supported in the frame and including a wall 20 for receiving axial thrust from a shaft 12, a bearing 14 mounted in the housing for supporting the end portion of the shaft for relative rotation, and elastic means 17 interposed between confronting reaction surfaces of the frame and the housing and being arranged to deform in response to axial thrust of the shaft, thereby taking up any misalignment of the shaft relative to the bearing. The wall 20 is disposed axially beyond the end face of the shaft, and the reaction surface of the housing is disposed axially before it. A ball 19 is interposed between the shaft and the wall 20. In an alternative embodiment, the ball is omitted and the end of the shaft is rounded. The bearing 14 could be a needle bearing.
Patent GB-842931-A (GB)
Title: Improvements relating to primary electric batteries
Inventor: HALL CLIFFORD JAMES
IPC: H01M6/30
Filed: 1957-07-29
Abstract: 842,931. Batteries. CHLORIDE BATTERIES Ltd. June 4, 1958 [July 29, 1957], No. 23902/57. Class 53. A primary battery comprises a non-porous lead dioxide positive electrode and is activated by adding water. The lead dioxide is electroplated on a nickel sheet a and the negative electrodes c, d are of pure magnesium, riveted together. Sheets of paper b impregnated with potassium chloride serve as separators and enable the cell to be activated with fresh water, alternatively salt water may be used. The e.m.f. at 60‹F. is 2À1 volts. A polythene wrapper provides intercell insulation.
Patent GB-258910-A (GB)
Title: Process for preparing bz-2-hydroxybenzanthrone
IPC: C09B3/06
Filed: 1926-09-28
Abstract: 258,910. I. G. Farbenindustrie Akt.- Ges., (Assignees of Farbwerke vorm. Meister, Lucius, & Br³ning). Sept. 28, 1925, [Convention date]. Addition to 224,522. Bz 2-Hydroxybenzanthrone is obtained by diazotizing Bz 1-amino- Bz 2-nitrobenzanthrone and substituting in the usual manner hydrogen for the diazonium group in the presence of water. The nitro-diazonium compound first formed rapidly loses nitrous acid in the presence of water, forming the hydroxy-diazonium compound. According to an example, the Bz1-amino-Bz2- nitrobenzanthrone is diazotized with nitrosylsulphuric acid, poured on to a little ice, and the paste run into boiling alcohol; the Bz2-hydroxybenzanthrone is purified by solution in caustic alkali and reprecipitation.
Patent GB-393246-A (GB)
Title: Improvements in methods of producing bodies for moulding purposes, from clays or kaolins
IPC: C04B38/06
Filed: 1931-08-25
Abstract: Porous refractory articles, e.g. saggars, crucibles, and furnace accessories, are made by mixing clays or kaolins, free from or poor in quartz, with combustible organic substances such as peat, lignite, coal, charcoal, sawdust, chaff, tanner's bark, &c., moulding or otherwise shaping and firing.  Silicon carbide, corundum, zirconia, crushed waste from burnt crucibles, &c. or other refractory material may also be added.
Patent GB-715248-A (GB)
Title: An improved appliance for washing eggs and other solid materials
IPC: A01K43/00
Filed: 1952-09-24
Abstract: 715,248. Eggs &c. washing. HOWIE, A., and OGSTON, T. Feb. 10, 1953 [Sept. 24, 1952], No. 23940/52. Class 28(2) Eggs or other solid material or fruit, nuts, vegetables &c. submerged in washing liquid 7, are washed by rotating a perforated container 9 on its spindle bearing 13 by directed jets of liquid from perforations or nozzles 23. The spray pipe 21 is adjustable on its axis and is supplied with the washing water from an electric motor driven pump 15 in a lower compartment 8. A filter 24 may be provided above the pump inlet 16. The basket may be eccentrically mounted in the vessel. An electric heater 25 heats the liquid, the switch 26 being controlled by a thermostat 27 which also operates an indicating light.
Patent GB-1533190-A (GB)
Title: Polyurethane curing agents
IPC: C08G18/10
Filed: 1976-06-09
Abstract: 1533190 Curing polyurethanes THIOKOL CORP 9 June 1976 [9 June 1975 11 May 1976] 23947/76 Heading C3R [Also in Division C2] Polyurethanes are cured with a triazine compound of the formula wherein R is -N(R 3 )(R 4 ); -S-R 5 ; -O-R 6  or wherein at least one of R 1 , R 2 , R 3  and R 4  is hydrogen and each of R 1  to R 8  is independently hydrogen, a substituted or unsubstituted saturated aliphatic, unsaturated aliphatic, cycloaliphatic or aromatic group, provided (a) that when one of any pair of the groups R 1  and R 2 , R 3  and R 4  and R 7  and R 8  which are both attached to the same nitrogen atom is an unsaturated aliphatic group having terminal carbon to carbon unsaturation, the other group is hydrogen, saturated aliphatic, cycloaliphatic or aromatic, or (b) R 1  and R 2  and/or R 3  and R 4  and/or R 7  and R 8  together with the nitrogen atoms to which they are respectively attached can form a 5- or 6-membered heterocyclic ring which may contain an oxygen or additional nitrogen atom in the ring, R<SP>1</SP> is the divalent residue of a bis(primary)amine the divalent residue of an organic diisocyanate or an organic bisepoxide and in which at least one of R 1  to R 6  is other than hydrogen provided that when R is the group, Formula II (shown above), R 1 , R 2 , R 7  and R 8  may all be hydrogen.
Patent GB-679789-A (GB)
Title: Improvements in and relating to earth leakage protection for single phase a.c. circuits
IPC: B28D7/00
Filed: 1950-09-30
Abstract: 679,789. Protective cut-out arrangements. BROOKE, W., and BALDWIN, H. T. Sept. 30, 1950. No. 23974/50. Class 38 (v). An earth-leakage protective system for single-phase A.C. circuits has an earth-leakage relay R1, which on the incidence of an earth fault is energized from a rectifier connected between earth and an artificial neutral point, a second relay R2 being energized from an auxiliary supply by the closing of the earth-leakage relay to open the contactor switch C controlling the protected circuit. In the Figure, plug points Z1, Z2 are supplied from a transformer T through the contactor C which has its operating coil F supplied from lines L1, L2 through a full-wave rectifier D2 and the normallyclosed contacts RC, RE of relays R1, R3. A transformer A<SP>1</SP> has its primary winding centretapped to provide an artificial neutral point AP which is connected to earth through a fullwave rectifier D1 which supplies the operating coil of the leakage relay R1. As soon as the transformer T is energized the contactor C closes and at C3 inserts an economy resistance G in series with the contactor operating coil F. If now an apparatus, such as a drill Y, connected to a plug point, should develop an earth fault as indicated at W, fault current will flow from line L2, through a conductor U, the fault W, earth conductors V and X, a connection 2, the rectifier D1 and the coil of relay R1 to the neutral point AP. The relay R1 closes its contacts RA to complete a circuit from secondary winding AS1 of the transformer A1 through a conductor 6, a rectifier D3, a connection 10, the coil of relay R2, the contacts RA, a connection 9, the rectifier D3 and a connection 5. The relay R2 now opens its contacts RC to deenergize the coil F of the contactor, which opens. The relay R2 also closes contacts RB, so that should the fault W persist, a circuit is completed from the secondary winding AS1 through the rectifier D3, a connection 101, a centretapped neutral point impedance A2, the conductor U, the fault W, connections V, X and 13, the relay contacts RB, a connection 12, the coil of relay R3, the rectifier D3 and the connection 5. The coil of relay R3 is thus energized by a D.C. current flowing through the fault and the relay R3 opens its contacts RE to prevent the reclosure of the contactor C so long as the fault remains. The relay R3 closes contacts RD to maintain a holding circuit for itself since the relays R1, R2 open when the contactor C opens to disconnect the plugs (and the fault) from the supply. The relay R3 when energized also closes contacts RF to light a fault indicating lamp E. When the fault is removed the relay R3 is de-energized and the contactor recloses automatically as previously described or under the control of a push button (not shown).
Patent GB-162001-A (GB)
Title: Improvements in or relating to shoe upper shaping machines
IPC: A43D13/00
Filed: 1919-09-30
Abstract: 162,001. Bennion, C. F., Gouldbourn, J., Bates, A., and British United Shoe Machinery Co., Ltd. Sept. 30, 1919. Pulling-over. - In a pulling-over machine, means are provided for causing, between the beginning and end of upper-stretching movement between upper-pulling means and the last height wise of the latter, a marked increase in the force applying capacity of parts causing this updraw, the additional force being applied by power. As shown, applied to a machine of the type described. in Specifications 7005/00 and 12304/03, the rear ends of the side-gripper levers are connected by links 22 and an equalizer bar 23 to a lever member 25 pivoted at 26 and provided with a camroll 27 co-operating with a cam 28 on an auxiliary shaft 7. At the completion of the usual partcycle, when the machine comes to rest with the upper under tension, the operator may cause the shaft 7 to make one or more revolutions. During each revolution, the links 22 are first raised by the cam 28 to relax the tension of the upper, and are then allowed to descend under the pull of the updraw springs. As the shaft 7 nears the end of its revolution, a second cam 31 depresses a lever 29 having a ratchet 34 engaging teeth 101 on the lever 25 to give a positive stretch to the upper. An adjustable stop 36 trips the pawl 34 as the links 22 ascend. An abutment 39 trips the pawl when the stretching is complete. Similar mechanism is provided for the toe-grippers. The equalizer bar 23 is connected by a long link 41 with a lever 40 for the usual adjustments of the upper about the last. The central pivot 24 of this bar may be nearer the gripper levers than the end pivots carrying the links 22, so that the multiple of the effective length of the arm operating a link 22 and the extent of compression of the corresponding updraw spring tends to be the same for the two arms of the lever 23. The cam-roll 27 may be removed so that preliminary release of upper tension does not take place. Specifications 1866/12, 16398/15, 153,349, 153,353, and 156,282 also are referred to. One Provisional Specification also refers to Specification 18523/11.
Patent GB-320126-A (GB)
Title: Process and apparatus for distilling and cracking or decomposing bodies such as oilsand the like by contact with salt or metal melts
IPC: C10G9/40
Filed: 1928-06-28
Abstract: 320,126. Seifer, T., June 28, 1928. Divided on 319,820. Hydrocarbons, cracking and distilling.-An apparatus for distilling cracking or decomposing oils &c. by contact with molten metal or salt in which circulating is maintained by differences in temperature of the molten substance, comprises a heating chamber 1 for the molten substance and a treating chamber 3 connected by a downwardly directed pipe 4, circulation taking place as indicated bv the arrows. Oil &c. is introduced by a device 2 and passes upwards over Raschig rings &c. 10, through a sieve 13 and out through a pipe 12. A protective plate 8 is provided at the top of the treating chamber. The heating vessel 1 may be replaced by a horizontal heating tube. The device 2 for introducing oil may be of the kind described in Specification 319,820 in which case circulation is assisted by the injector action of the feeding device.
Patent GB-642304-A (GB)
Title: Improvements in or relating to paper making machines
IPC: D21F9/04
Filed: 1946-08-14
Abstract: 642,304. Cylinder paper-making machines. BELOIT IRON WORKS. Aug. 14, 1946, No. 24144. Convention date, Feb. 13. [Class 96] Paper pulp is deposited on to a travelling wire-cloth 38 at a zone Z of the forming cylinder of a paper-making machine from an enclosed flow-box under pressure from a pump 49, and after passing under an adjustable slice 54 is subjected to air pressure to avoid uneven fibre distribution &c. at high speed. In the air pressure zone which extends from the slice 54 to a suction couch roll 106, the pulp web meets a pick-up felt 128 which is adjustable between the full and dotted line positions shown in the drawing, by screw and worm gear &c. 79, 80, 81. The compressed air is supplied from a compresser 112 to the compartment S which the felt 128 enters between a sealing roll 85 and the couch roll 106, the sealing roll 85 coacting indirectly with a seal 105b, and directly with a seal 86, the latter being cushioned at 87. Water in the holes of the shell of the couch roll 106 is retained by suction in a compartment B until well clear of the felt 128, when it is flung off into a tray 126. A bellows conduit 108 allows the couch roll 106 to be moved, about pivots 98, without breaking the suction. The suction-box 105 of the roll 106 is drained through an extensible bellows conduit and a hollow box beam 110. White water draining through the wire cloth 38 and into the cylinder 22 falls through the lower part of the cylinder into the vat 24 and is taken off from a sump 24a. Excess pulp flowing over an adjustable, pivoted baffle 58 is drawn off at 61 and pumped at 63 back into the supply conduit. A shower 67 reduces foam, and washes the box C.
Patent GB-1438273-A (GB)
Title: Electrical socket devices
IPC: H01H71/16
Filed: 1972-05-23
Abstract: 1438273 Two-part coupling OTTERMILL CHILTON Ltd M J FRANKLIN and J T CARTER 22 May 1973 [23 May 1972] 24298/72 Heading H2E A supply unit for an electric shaver comprises transformer 12 providing alternative secondary voltages, a thermal cut-out 14, a three-way equi-spaced in-line socket 13 to take a two-pin razor plug in two alternative positions, and a switch operated by the insertion of the plug pin in the central socket connector, the thermal cutout and switch being in series with the mains supply to the primary of the transformer. The socket 13 has helical-spring loaded wide blade contacts 23, 24, 25 to accept plug pins of many designs and spacings. The central connector is the common point of the two transformer outputs, the outer connectors providing alternative voltages, e.g. 115 and 230 volts. Insulating button 32 within the control connector operates the switch. A neon lamp may be incorporated to indicate that the supply is connected.
Patent GB-376997-A (GB)
Title: Improvements in rakes
IPC: A01D76/00
Filed: 1931-08-29
Abstract: 376,997. Rakes. NICHOLSON, A. C., Trent Iron Works, Newarkon-Trent. Aug. 29, 1931, No. 24369. [Class 6 (iii).] An expanding horse or traction rake of the type having a fixed set of central teeth and a set of removable teeth at each end thereof has its road wheels mounted on the sliding parts of the frame that carry the removable teeth when the rake is in expanded position. The rake has an axle divided into three parts, viz. a central fixed part 10 and end portions 11. Each end portion is square in cross section and is slidable axially through a box 13 carried by the part 10 the extreme outward position of each end portion being limited by a stop 14. The outer end 17 of each portion 11 is of circular cross section to take a road wheel. A spigot 21 and a socket 20 are fitted in the box 13 and an adjustable bracket 18 on the portion 11 to take a corresponding socket 33 and spigot 32 on brackets 30, 29 on a removable frame provided with sockets 27 in which tines 28 are secured. A similar frame stiffened by a cross-bar 25 carries the central set of tines. A spigot 35 at the end of each side frame fits into a socket 36 in the side brackets of the central frame so that the side tines are lifted in unison with the central tines. For transport the side tine frames are removed and the members 11 pushed inwardly until the spigot's 21 enter the sockets 20. To stiffen the machine a stay pivoted to a member projecting from the main frame is provided with a rectangular-sectioned end adapted to enter into and to be locked in position in an extension of each bracket 18 ; in the collapsed position of the rake the stay is swung backwards and the end of the member clamped in the extension.