baber/WOPTO huggingface dataset:
Patent GB-1465121-A (GB)
Title: Two-speed motor control for dual hydrostatic transmission
IPC: F03C1/40
Filed: 1974-09-24
Abstract: 1465121 Hydrostatic transmissions; linkwork CLARK EQUIPMENT CO 24 Sept 1974 [24 Sept 1973] 41452/74 Headings F2W and F2K In a hydrostatic transmission arrangement for a vehicle in which separate transmissions, each comprising a variable-displacement pump and a variable-displacement motor, drive wheels on the opposite sides of the vehicle, the displacements of the motors 38 (Fig. 4) are adjustable together to either maximum displacement (for low-speed drive) or to a reduced displacement position (for higher-speed drive) by a linkage in which a lever 42 interconnects the motor control members 40, this lever being movable between positions corresponding to lower-speed and higher-speed drive by a manual control member, with wedging means yeildably holding the motor control members in the selected position against the action of the motor pistons on motor swash plates. In the arrangement shown in Fig. 4 the lever 42 is pivoted to one control member 40 and engages the other through a pin and slot connection 45. A bellcrank 47 also engages lever 42 as shown through another pin and slot connection, 44, 49 and the other end of bell-crank 47 is pivoted to a rod 50 which is in turn pivoted to the end of a manually movable lever (52) (Fig. 3, not shown). The arrangement of the pin and slot connection 45 and bell-crank 47 is such that in either position of control members 40 (in the full-line or broken line position of the linkage as shown) the levers 40 are wedged in position against the bias of the pistons on the swash plates. An over-centre spring arrangement (such as that shown at 56a in Fig. 5) acts on the manually movable lever (52) so that this lever is biased to one of its two extreme positions. In the embodiment shown in Fig. 5, which is, unlike that of Fig. 4, for axially aligned motors 38a, a rod 60 connected by ball joints to a bell-crank 47a and to control lever 42a replaces the pin and slot connection shown in Fig. 4 between bell-crank 47 and lever 42. The transmission arrangement is described in an end-loader in which steering is effected by differential variation of the variable pumps supplying the motors, these having separate manual control members.
Patent GB-984318-A (GB)
Title: Carbon electrodes
Inventor: NELSON JOSEPH FREDERICK
IPC: C04B35/532
Filed: 1962-11-05
Abstract: A compressed mixture of unground fluid coke particles of particle size less than 200 mesh and 20-140 mesh respectively and a cokeable binder is baked at 750-2,400 DEG  F. to form agglomerates, the agglomerates are crushed to form pieces of a size between 3/8 and 1 inch, and a mixture of the crushed agglomerates and further ground and unground fluid coke particles and cokeable binder is formed into Soderburg or prebaked electrodes.  The coke in the agglomerate mix may be made up of 10-50% of ground fluid coke and 90-50% of unground fluid coke, and that in the electrode mix may be made up of 20-30% of ground fluid coke, 45-65% of unground fluid coke, and 15-30% of crushed agglomerates.  The fluid coke may be calcined or uncalcined. The agglomerate and electrode mix may contain 10-40% of binder.  The binder may be coal tar pitch, petroleum pitch or asphalt.  The agglomerate and electrode mix may be compressed at 1,000-20,000 p.s.i.  The electrode mix may be baked at 1,200-2,400 DEG  F.
Patent GB-1500869-A (GB)
Title: Thrust bearing
IPC: F16C27/08
Filed: 1976-10-12
Abstract: 1500869 Bearings CATERPILLAR TRACTOR CO 12 Oct 1976 [3 Nov 1975] 42326/76 Heading F2A A thrust bearing assembly has two relatively rotatable members 22, 32, one of which has a thrust collar 26 which is received in a groove 28 in the other member, there being an annular bearing element 44 disposed in the groove between the side of the groove and the thrust collar, the overall clearance between the thrust collar, bearing element and side of the groove when the members are unloaded being greater at the radially outer edge of the annular bearing element than at its inner edge. The annular bearing element is preferably crowned on both sides so as to provide the required variation in bearing clearance.
Patent GB-1166622-A (GB)
Title: A new or Improved Apparatus for Use in Effecting Controlled Quenching of Metal in Bar Form
Inventor: TRAVIS ALFRED
IPC: C21D1/63
Filed: 1965-10-07
Abstract: 1,166,622. Quenching apparatus. EXORS OF JAMES MILLS Ltd. Jan.6, 1967 [Oct. 7, 1965], No.42516/65. Heading C7N. An apparatus for effecting the controlled quenching of metal (e.g. steel) bars comprises:- (a) a bar receiving bank (b) means for advancing hot bars to the bank, (c) a quenching bath (d) a bar supporting means having loading, immersion and discharge positions. (e) means for transferring the bars from the bank to the support means when it is in the loading position in the same order that they have been supplied to the bank (f) a control mechanism for immersing the bar in the quenching bath when the temperature of the bar has fallen to a given value or into a given range (g) means for rejecting from the immersion means any bars about to be immersed which are below the correct temperature or the minimum of the given range (h) a timing device to control the period of immersion and (i) means for discharging the quenched bars. The bars are fed through a gate 14 Fig.1 (not shown) which is closed if the apparatus is full (when the bars are kept in a hot bed 13) and into the apparatus by driven rollers 15 until they reach the end stop 17 and they are then fed by feeding means 18 Fig.4 on to the foremost unoccupied pocket 35 of the bank 10. They are then fed by walking beam means into the bar supporting means 38 Fig. 5 which can immerse the bar in the quenching bath 37 after the temperature has been checked at the intermediate position 38d. After quenching the bar is discharged on to table 62 into trough 63. If the temperature of the bar is too high a delay for air cooling is introduced, if it is too low the bar 64 Fig.4 is brought down over trough 63 and the bar is discharged into reject trough 66, this mechanism also being brought into effect if the bars are not straight. Control of the apparatus by electrical and pneumatic means is also described in connection with Figs. 6 and 7 (not shown).
Patent GB-1446752-A (GB)
Title: Method and apparatus for providing grade control for the screed of a paver or the like
IPC: E01C19/48
Filed: 1973-09-11
Abstract: 1446752 Road surfacing apparatus BARBER-GREENE CO 11 Sept 1973 [18 Sept 1972] 42588/73 Heading E1G Apparatus which forms a roadway by applying a layer of roadway material to a subgrade (e.g. an asphalt paper) and which includes vertically movable mechanism 11 for controlling the grade profile (e.g. a screed) comprises a mobile grade reference device 24 having first means thereon for securing the vertical distance between a point on the subgrade and a reference point 27 on the device 24, second means for generating and storing intelligence representative of successive distances sensed by said first means, third means 15 for sensing the vertical distance of the mechanism 11 above the subgrade, fourth means for generating intelligence representative of the successive distances sensed by said third means, and fifth means for comparing said intelligences to produce grade control signals representative of the differences therebetween. The mobile grade reference device the detected working of which is described and claimed in Br. Pat. 1406658 may (as shown) be an independent unit having its arm powered wheeled apparatus, in which case the data may be generated and stored on wire or tape for subsequent use, or it may be pushed along in front of the power with a fixed distance between the first means for sensing the distance between the subgrade and the reference point and the grade control means. In this latter case the data is stored by means of a belt moving along an endless path. Where the data is recorded on a strip or tape it may be deposited along the path of movement of the grade reference device to be subsequently sensed by the paver. Alternatively magnetic paint could be applied directly to the subgrade in proportion to the vertical distance sensed by the grade reference device.
Patent GB-1126805-A (GB)
Title: Improvements in or relating to centre differential gear units
Inventor: HILL CLAUDE
IPC: B60K17/34
Filed: 1964-10-20
Abstract: 1,126,805. Differential gear. HARRY FERGUSON RESEARCH Ltd. 11 Oct., 1965 [20 Oct., 1964], No. 42676/64. Heading F2D. [Also in Division B7] A centre differential gear for a four wheel drive vehicle, comprises a planet carrier 12 driven by input shaft 50 and a planet wheel 14 meshing with sun 20 driving front output shaft via gears 24, 38 and shaft 40, and with a ring gear 18 integral with the rear output shaft 30; the gears 24, 38 are a step-up ratio so that in use with the vehicle driven, the sun 20 rotates slower than ring gear 18 and carrier 12. A lock-up clutch comprises a shroud 52 secured to sun 20 through shaft 22 and a collar 54 keyed to input shaft 50 and thus carrier 12; a presser 58 is connected by a helical thread 56 to collar 54 and carrier clutch plates 64 interleaved with plates 66 carried by shroud 52. A clutch backing plate 68, splined to collar 54, is limited in axial movement by three radial plungers 70 having inclined abutment with a sleeve 72 splined to the input shaft 50 ; the sleeve 72 carries on a helical thread 74, the inner member of a one-way sprag brake 76, which sleeve 72, on forward motion of the vehicle, is moved by the helical thread to the right to cause the plungers 70 to support the clutch plate 68 thus setting the clutch for operation. In reverse, the sleeve 72 is screwed back until the splines 72B disengage the shaft splines, thus permitting the plungers 70 to retract inwardly so that the clutch cannot engage. In operation, during forward motion, the shroud rotates slower than collar 54 so that drag between plates 64, 66 causes presser 58 to move away from the plates. Should shroud 52 exceed the speed of collar 54 by a predetermined amount due to front wheel spin or rear wheel lock, the presser 58 is moved to engage the clutch to lock the sun 20 to carrier 12 and hence lock-up the differential gear. The 'gears 24, 38 may have a 1:1 ratio but the front wheel differential ratio is then less than the rear wheel differential ratio; with the latter different ratios the ratio between gears 24, 38 may be other than 1:1. The front output shaft drives a rotary inertia-type sensor 42 of an anti-skid brake system.
Patent GB-1396936-A (GB)
Title: Reduction process
IPC: B01J27/20
Filed: 1972-09-14
Abstract: 1396936 Production of nitrosobenzenes IMPERIAL CHEMICAL INDUSTRIES Ltd 28 Aug 1973 [14 Sept 1972] 42693/72 Heading C2C The invention comprises a process for the preparation of nitrosobenzenes by heating a nitrobenzene with an aldehyde, ketone or alcohol in the presence of a catalyst having a lattice consisting of the oxide, hydroxide, carbonate or phosphate of a heavy metal selected from Sb, Bi, Ce, Cr, Co, Cu, Ge, Au, Fe, La, Pb, Mn, Hg, Mo, Nd, Ni, Re, Ag, Ta, Tl, Th, Sn, Ti, W, V and Zr and having at least one other of said metals present in the lattice as an impurity. The preferred catalyst contains a major proportion of magnesium and a minor proportion of lead.
Patent GB-1235248-A (GB)
Title: Intermittent running of fuel cells
IPC: H01M8/04
Filed: 1969-08-28
Abstract: 1,235,248. Fuel cell operation. SIEMENS A.G. 28 Aug., 1969 [28 Aug., 1968], No. 42970/69. Heading H1B. A fuel cell battery is prevented from deteriorating whilst out of use by cutting off the supply of one of the reactants, at the beginning of the inoperative period so that it is expelled from the cell whilst the other reactant and the electrolyte remain during the inoperative period. The reactant may be expelled by flushing with inert gas or by flooding the cell with electrolyte. Current may be withdrawn whilst the reactant is being expelled. In a particular embodiment a fuel battery comprises Raney silver cathodes 11 and Raney nickel anodes 12. During normal operation electrolyte, hydrogen and oxygen enter through ducts 7, 13 and 15 respectively and leave through ducts 10, 14 and 16 respectively. At the end of the operative period valve 18 is closed and electrolyte passes through electrodes 8, flooding chambers 11. When flooding is complete valves 17, 19, 20, 21 and 22 are also closed.
Patent GB-1356566-A (GB)
Title: Manufacture of carbon fibres
IPC: D01F9/145
Filed: 1970-09-08
Abstract: 1356566 Carbon fibres and films COAL INDUSTRY (PATENTS) Ltd 13 Aug 1971 [8 Sept 1970] 42991/70 Heading C1A Shaped carbon articles selected from fibres, filaments and films, are made by spinning or extruding a composition comprising a non- polymeric hydrocarbon consisting of mixtures of highly aromatic organic non-polymeric compounds which contain as an additive, 0À05 to 20% by weight of one or more compounds selected from amines, amides, alcohols and carboxylic acids which contain no aromatic groups and contain chains of at least eight carbon atoms, to form the desired article, then oxidizing and carbonizing the article. The additive may be octanoic, myristic, stearic, palmitic, or behenic acids, decyl, stearyl, or cetyl alcohols and corresponding amides and amines. The non-polymeric material may be a solution or extract of coal, pitch or tar obtained from coal or petroleum pitch, bitumen or asphalt. In examples anthracene oil extracts of bright coal are used as the non-polymeric compound, and as the additive, in Examples 1 and 2, stearic acid, and in Example 3, palmitic acid. The fibres were oxidized at a rate of 1‹ C./min. to 230‹ C. and carbonized at 50‹ C./hour to 1000‹ C. Synthetic polymers and natural or synthetic rubbers may be included in the compositions.
Patent GB-1439525-A (GB)
Title: Starter motor lockout system for an internal combustion engine
IPC: F02N11/08
Filed: 1973-09-13
Abstract: 1439525 Starting internal combustion engines MULLARD Ltd 13 Sept 1973 43089/73 Heading H2H A circuit for controlling the operation of a starter motor for an internal combustion engine comprises a starter switch SB, a transducer T for sensing the rotation of the engine, a delay circuit for inhibiting the operation of the starter motor until a predetermined time after the cessation of rotation of the engine and a latching circuit R9, D8 for maintaining the energization of the starter motor whilst the starter switch is operated. When the starter switch SB is closed a capacitor C2 of the delay circuit begins to charge and after a period of two seconds is charged sufficiently to switch on transistors TR2, TR3. A relay coil SCR is therefore energized and closes contacts SC to energize the starter motor. The latching circuit holds the starter motor energized and after a period of 100 milliseconds the electromagnetic transducer, which detects the movement of a gear tooth on the starter ring, supplies a positive potential to one input of a differential amplifier AMP. The positive output voltage of the amplifier switches on a transistor TR1 to discharge the capacitor C2 and, provided that the starter switch SB has been opened, de-energize the coil SCR. If the starter switch is re-closed within 20-30 milliseconds of being opened, a capacitor C3 retains sufficient charge to maintain conduction of the transistors TR2, TR3 and thereby maintain the operation of the starter motor. Re-closure of the starter switch after this period does not enable energization of the starter motor until the transducer has detected that the engine has stopped rotating and a further two seconds have elapsed whilst the capacitor C2 re-charges.
Patent GB-1248148-A (GB)
Title: Improvements in or relating to retaining rings and assemblies comprising the same
Inventor: WURZEL HUGO
IPC: F16C11/06
Filed: 1969-08-29
Abstract: 1,248,148. Clip. WALDES KOHINOOR Inc. 29 Aug., 1969, No. 43156/69. Heading E2B.  A retaining ring comprises an annular body portion 10 having teeth 12 and 14 on the outer and inner peripheries for retaining one member within another member. As shown in Figure 3, the prongs 12 engage the inner surface of a housing member 24 to fasten the ring to the member and the prongs 14 engage the surface of a part spherical ball 20 retaining it resiliently or fixedly in contact with the housing extension 26 accordingly as the prongs are resilient or rigid. In a modification, the ring body piston is flat and abuts a shoulder on one end, of an inner member and lateral extensions on the fingers 12 exert a bias on a second outer member surrounding the other member to provide a resilient or fixed abutment therefor according to the stiffness of the lateral extensions. Alternatively, the lateral extensions are on the inner prongs 14 and the body portion of the ring abuts a shoulder on the outer member and the lateral extensions abut an inner member.
Patent GB-1097270-A (GB)
Title: Process for the preparation of methylene dioxybenzene, 1,3-benzoxathiole and derivatives thereof
Inventor: CORNFORTH JOHN WARCUP
IPC: C07D317/50
Filed: 1965-10-13
Abstract: A process for the preparation of aromatic compounds containing a ring system of the formula <FORM:1097270/C2/1> comprises heating a compound containing a grouping of the formula <FORM:1097270/C2/2> with a methylene dihalide under alkaline conditions in the presence of a solvent having a dielectric constant measured at 25 DEG  C. of at least 25 and which is free from hydrogen atoms able to form hydrogen bonds with anions, the symbol X in the above formulae representing an oxygen or sulphur atom.  Solvents specified included dimethyl formamide, dimethyl acetamide, dimethyl sulphoxide and sulpholane. The examples describe the preparations of methylene dioxybenzene, 1-methyl-3,4-methylene dioxybenzene, 1 - isopropyl - 2,3 - methylenedioxybenzene, 1 - methyl - 2,3 - methylenedioxy - 5 (1,1,3,3 - tetramethylbutyl) benzene, 3,4 - methylene dioxybenzaldehyde, 2,3-methylenedioxynaphthalene and 1,3-benzoxathiole.
Patent GB-1443570-A (GB)
Title: Detergent compositions
IPC: C11D7/06
Filed: 1973-09-17
Abstract: 1443570 Detergent additives for automatic dishwashing machines DIVERSEY Ltd 13 Sept 1974 [17 Sept 1973] 43481/73 Heading C5D An additive for detergent compositions, particularly for use in dishwashing machines, comprises (A) an alkali metal aluminate and (B) a water-soluble phosphonic acid sequestrant or a water-soluble salt thereof. The ratio of (A) to (B) is from 1 : 5 to 10 : 1. (A) may be sodium aluminate. (B) may be an aminoalkylene phosphonic acid or an alkali metal salt thereof, e.g. amino tri(methylene phosphonic acid), acetodiphosphonic acid, or ethylene-1,1-diphosphonic acid. The additive may be used in quantities of 0À1 to 99% by wt. of a detergent composition having a high level of alkaninity (i.e. wherein a 1% w./w. aqueous solution has a pH above 9). Such compositions contain in addition to the additive (C) surfactants, e.g. an ethoxylated alkyl phenol and/or an alkylbenzene sulphonate (D) a builder, e.g. sodium tripolyphosphate (E) metal corrosion inhibitor, e.g. sodium metasilicate (F) bleach, e.g. sodium perborate, and (G) other conventional detergent auxiliaries. An aqueous concentrate solution for washing bottles contains (I) 3-21% by wt. of tetrasodium ethylene diamine tetraacetate (38% solution) (II) 12 to 24% sodium hydroxide (III) 3-12% aminotri(methyl phosphonic acid) (IV) 7À5% sodium aluminate (V) 2À5% polyacrylic acid.
Patent GB-1311598-A (GB)
Title: Liquid developer for electrophotography
IPC: G03G9/12
Filed: 1971-09-17
Abstract: 1311598 Electro-photography FUJI PHOTO FILM CO Ltd 17 Sept 1971 [18 Sept 1970] 43562/71 Heading G2H A liquid developer comprises an insulative carrier liquid and suspended pigment containing adsorbed resin soluble in the carrier liquid, the weight ratio of resin to pigment being more than 0. 5. A toner concentrate containing less than 20 per cent of solid and having a viscosity of less than 20 centipoises may be prepared by ball milling resin, pigment and carrier liquid; and developer formed therefrom by dilution with further carrier liquid. The pigment may be carbon black and the resin an alkyd resin.
Patent GB-1236114-A (GB)
Title: An improved hydraulic press
IPC: B30B15/04
Filed: 1969-09-04
Abstract: 1,236,114. Hydraulic presses; compression moulding. MANNESMANN - MEER A.G. 4 Sept., 1969 [5 Sept., 1968], No. 43739/69. Headings B5A and B5F. An hydraulic press, e.g. for making articles from metal powder comprises a stationary horizontal platen 1, cross members 13, 7 above and below the platen connected by columns 15 slidable in the platen, hydraulic piston and cylinder assemblies 5, 6 or 11, 12 to produce reciprocal movement between an upper punch 14 on the cross member 13 and a lower punch 21 mounted on the platen 1, the lower punch 21 being associated with a die 10 movable relative to the platen 1 by an hydraulic piston and cylinder assembly 8, 9 extending below the platen 1. In operation, the die 10 is brought to the filling position (shown in chain lines) by the piston 9 and is filled with metal powder. The upper punch 14 is moved rapidly by retraction of the pistons 12, moving with it the pistons 6, unpowered, by displacement of the crosshead 13, columns 15 and cross member 7. The working stroke of the punch 14 is effected by the pistons 6. Fig. 1 shows the die 10 in the ejection position in full lines.
Patent GB-976940-A (GB)
Title: Improvements in non-return valves for liquid pumps
IPC: F22D5/18
Filed: 1962-11-23
Abstract: 976,940. Valves. KONINKLTJKE MASCHINENFABRIK GEBR. STORK & CO. N.V Nov. 23, 1962 [Nov. 27. 1961], No. 44363/62. Heading F2V. A non-return valve for use on the pressure side of a liquid pump has a pin 5 extending in the direction of movement of a closure 2 and having a portion of reduced cross-sectional area to open ports 11 leading to a bypass duct 7 when the closure 2 is seated. The pressure at the ports 11 also acts through a bore 14 in a space between the end of the pin and a nut 9 locked by a strip 10. A fixed throttle 12 is provided in the transfer duct 7 and the ports 11 are arranged in a helical series. The fluid-pressure forces acting on the pin 5 assist the spring 4 to a decreasing extent as the closure 2 opens and the pressure within the nut 9 is increased by the leftward end of the bore 14 approaching the mouth of the bush 6 in which the pin 5 slides.
Patent GB-1471035-A (GB)
Title: Vacuum cleaner
IPC: A47L9/20
Filed: 1974-10-14
Abstract: 1471035 Vacuum cleaners ELECTROSTAR SCHOTTLE KG 14 Oct 1974 [29 Oct 1973] 44518/74 Heading BIT A vacuum cleaner comprises a resiliently mounted filter bag 7, a suction fan 3 driven by motor 4, bag agitator means 11 and either a sensor 15 for sensing the pressure upstream of the fan 3 which sensor actuates the agitator means 11 when the said pressure falls below a predetermined value or a sensor (not shown) for sensing the temperature of the motor and serving to actuate the agitator means when the said temperature rises above a predetermined value. The vacuum cleaner may comprise an electrical circuit including a time delay for maintaining the agitator means in operation for a certain time.