baber/WOPTO huggingface dataset:
Patent GB-1493406-A (GB)
Title: Single pump hydrostatic transmission control and supply system
IPC: F16H61/46
Filed: 1974-12-12
Abstract: 1493406 Hydrostatic transmission control CATERPILLAR TRACTOR CO 12 Dec 1974 [21 Dec 1973] 53831/74 Heading F2W A control system for a motor vehicle hydrostatic transmission having a variable displacement pump 102 in closed circuit with a variable displacement motor 98 comprises an engine driven pump 10 supplying pressure liquid to a pressure compensated throttle valve 20 which provides a constant volume flow through a line 92 to a manually controlled throttle valve 90 which produces a pressure drop thereacross and the pressure drop is applied through lines 94, 104 to servo cylinders 96, 100 which actuate pilot valves 110, 108 of motor and pump displacement adjusting follow-up servomotors 114, 112. A reversing valve 105 in the supply lines to the pump servo 100 permits reversal of pump displacement for forward and reverse drive. Relief flow from the throttle valve 20 is supplied through a line 106 to provide actuating fluid for the follow-up servomotors 112, 114 and is supplied through a line 116, relief valve 44, line 118 and shuttle valve 200 to provide make-up fluid for the hydrostatic transmission. A temperature corrected throttle valve 16 is provided between the pump 10 and throttle valve 20 and the pressure drop between its inlet and throat is applied to a valve 80 which is normally held closed by the pressure drop. If the engine speed is below a predetermined value the valve 80 opens to vent the line 92 and neutralize the transmission. Low pressure fluid in lines 124, 128 is returned to a sump 11 through a cooler 72 and a jet pump 76 which scavenges leakage fluid. Excessive flow through the low pressure lines opens a cooler by-pass valve 68.
Patent GB-1494216-A (GB)
Title: Machine for rock removal and soil cultivation
IPC: E02F7/06
Filed: 1974-12-12
Abstract: 1494216 A stone collecting and comminuting machine E A F BAKKE and K W N BERG 12 Dec 1974 [14 Dec 1973] 53838/74 Heading A1B A soil cultivating machine comprises a comminuting and classifying chamber 15 defined by two sidewalls, a displaceable chain belt conveyor 16 which is adapted to move along a length of its path of movement in a semicircular path and an arcuately shaped grid 11 associated with the conveyor 16, means such as teeth 10 for penetrating the surface of the soil to be cultivated and for introducing soil and rocks 31 into a lower portion of the conveyor 16 constituting the lower portion of the chamber 15, and a driven sprocket 21 mounted on a driven shaft 6 for driving the conveyor 16 in the direction of the arrow (see Fig. 2). The conveyor 16 carries the stones and other materials upwardly towards the grid 11 whereby smaller. particles are thrown out through the openings of the grid 11 while larger stones are retained within the chamber 15. Materials which are reduced in size by the grinding action in the chamber 15, and sand escape through openings in the conveyor 16 to the ground. Digger teeth 10 can be adjusted by means of hydraulic cylinders, screws or by a loader. The conveyor 16 consists of shafts 23 which protrude a smaller distance from sleeves 24 to mesh with teeth 20 of two sprockets 19. Pairs of sleeves 24 are held together by linkage members 26 and a member 25 which is movable such that when the conveyor 16 is substantially horizontal the member 25 tilts by its own weight to leave a slot for material to pass therethrough. Shields 27 and 28 are provided to protect the teeth of the sprocket 19 and a roller 17 and shafts 23 in the pick-up region. The linear velocity of the conveyor can be adjusted to the velocity best suited for the type of the soil to be treated. In another embodiment Figure 5 (not shown) the conveyor 16 has an extension over a roller (33) and the sidewalls have extensions (32) to replace the teeth 10 as a feeder. The extension (32) also assist in gathering the materials. The machine may be powered by a loader (30) Fig. 6a (not shown), a tractor (34) Fig. 7 (not shown) or may be self-powered Fig. 8 (not shown). To unload the gathered stones, the machine is tilted and the grid 11 is pivoted about a shaft 4 to increase the passage of the outlet.
Patent GB-1183899-A (GB)
Title: Ethers of the Pregnane Series
IPC: C07J5/00
Filed: 1968-11-13
Abstract: 1,183,899. Steroid 3-ethers of the pregnane series. E. MERCK A.G. 13 Nov., 1968 [13 Dec., 1967], No. 53886/68. Heading C2U. Novel steroids of the formula (wherein R<SP>1</SP> is C 1-10  alkyl or C 3-7  cycloalkyl; and R<SP>2</SP> is a free or esterified OH group) and the ester salts of the acidic and basic 21-esters are prepared (1) by etherification of the corresponding 3-ols or reactive derivatives thereof with appropriate alcohols R<SP>1</SP>OH or reactive derivatives thereof or (2) by removal, by reaction with zinc in aqueous acetic acid, of the 17α-OH group from corresponding steroids containing this group; or (3) by solvolysis or hydrogenolysis of corresponding steroids in which the 20-keto group and/or the 21-R<SP>2</SP> group is or are functionally changed. Free 21-ols may be esterified. Starting materials of the formula are prepared by reduction of the 3-keto group of desoxycorticosterone possibly after esterification or etherification of the 21-hydroxy group and/or conversion of the 20-keto group to a functional derivative, to give a mixture of 3α- and 3#-ols which may be separated and protective groups if present then split off. The mixture of the individual epimers can be converted to reactive derivatives of the 3-ols, e.g. 3-halo compounds or 3-sulphonates, by standard procedures. Starting materials of the formula are prepared by reducing the bis-methylenedioxy derivative of cortexolone (prepared conventionally) to give a mixture of the epimeric 3-ols, splitting off the protecting group and etherifying, if necessary via a 3-ester or similar derivative, the epimers being separated at any appropriate stage. The novel 3-ethers of 3-hydroxy-21-(hydroxy or acyloxy) - 4 - pregnen - 20 - one are stated to possess a sodium-retaining and diuresisinhibiting action of the same order as that of 9α-fluoro-hydrocortisone and therefore to be useful for combatting Adison's disease and hypotonia. They may be made up into pharmaceutical compositions with suitable carriers.
Patent GB-1195722-A (GB)
Title: Electric Cable Connecting Means
Inventor: BROCK LESLIE
IPC: H01R9/22
Filed: 1967-01-25
Abstract: 1,195,722. Electric couplings. ENGLISH ELECTRIC CO. Ltd. 18 Jan., 1968 [25 Jan., 1967; 21 Aug., 1967], Nos. 3745/67 and 54048/67. Heading H2E. An electric cable connecting means comprises housings 1, 2 of insulating material and a plurality of electrical connectors, each connector having a screw 16 rotatably mounted in a bush 6 to engage with a nut 11, which is non- rotatably mounted, to clamp the housings together and provide electrical connection between cable clamps 15, 17. Clamp 15 is mounted on a metal strip 13 which is held between nut 11 and bush 6 while clamp 17 is held between screw 16 and bush 6. Flashover between adjacent connectors is avoided by means of fins (7), 12. Another embodiment is also described in which the screw 16 threads into a modified, captive, strip (110).
Patent GB-1196389-A (GB)
Title: Alimentary Paste Product
Inventor: MISHKIN ABRAHAM RUDOLPH
IPC: A23L7/109
Filed: 1968-11-14
Abstract: 1,196,389. Alimentary paste product. NESTLE'S PRODUCTS Ltd. 14 Nov., 1968, No. 54082/68. Headings A2B and A2E. An alimentary paste product is prepared by cooking a shaped alimentary paste having a wall thickness below 0.63 mm. by contact with steam while simultaneously maintaining the paste in a moist state, preferably by spraying with water, and thereafter drying. The shaped paste may be noodle or macaroni. The product may be prepared for consumption by combining with 240-300 c.c. of hot water per 100 grams of products, and permitting this mixture to stand for 1-3 minutes.
Patent GB-1482749-A (GB)
Title: Electrolytic cell diaphragms
IPC: H01J9/12
Filed: 1973-11-23
Abstract: 1482749 Diaphragm cells IMPERIAL CHEMICAL INDUSTRIES Ltd 30 Oct 1974 [23 Nov 1973] 54387/73 Heading C7B An electrolytic diaphragm cell for electrolysis of an aqueous alkali metal chloride solution to give chlorine and an alkali metal hydroxide has an anode and a cathode e.g. steel gauze separated by a diaphragm comprising Zr oxide, fibres or particles, preferably in admixture or chemical combination with another inorganic oxide e.g. TiO 2  or Cr oxide, with or without asbestos or a fluorinated polymer e.g. PTFE, PVF, PVDF;FEP (fluorinated ethylene/ propylene copolymer) or poly(C 2 ClF 3 ). The diaphragm may be formed by thickening an aqueous suspension or slurry containing Zr oxide and fluorinated polymer and optionally particulate filler e.g. starch, to effect agglomeration of particles therein to form a dough which may be calendered into sheet, the filler e.g. starch being removed e.g. by in situ oxidation when placed against the  cathode of the cell. Specifications 1445331, 1425934 and 1360197 are referred to.
Patent GB-1373886-A (GB)
Title: Control unit for vehicle and dashboard incorporating same
IPC: B60K37/06
Filed: 1972-11-27
Abstract: 1373886 Motor vehicle SOC ANON AUTOMOBILES CITROEN 27 Nov 1972 [6 Dec 1971] 54768/72 Heading B7H  A motor vehicle control unit 1 which includes at least two control members which require little or no movement for their actuation, e.g. a switch 2 for controlling the direction indicators of the vehicle and a horn push button 6, is disposed behind the steering wheel 3, the disposition of the switches 2, 6 on the control unit 1 being such that they can be easily reached by the driver without having to remove his hand from the steering wheel 3 (see Fig. 7), and are easily distinguished so that the wrong switch is not actuated. The switches 2 and 6 have actuating surfaces 2a and 6a and centres 2b and 6b respectively. The planes passing through the centres 2b, 6b of the switches and through the axis 4 of the steering column 5 includes an angle 12-14-13 when projected on a plane perpendicular to the axis 4. The planes perpendicular to the actuating surfaces 2a, 6a and parallel to the axis 4 intersect along an axis I and include an angle 12-11-13. According to the invention the angle 12-11-13 is greater than the angle 12-14-13 and axes I and 4 both lie on the same side of the plane parallel to the axis and containing the centres 2a, 6b of the switches, i.e. when projected the points 11, 14 both lie on the same side of the line 12-13. A third control member or switch (not shown), may be disposed adjacent the switch 2 provided that the third switch satisfies the above criteria in relation to the switch 6. The switches 2, 6 are also disposed at different distances D, d from the steering wheel as shown in Fig. 7. The control unit 1 may be mounted on a slide 21, its distance from the steering wheel 3 being adjusted by screw 23. Alternatively two control units 1 may be mounted on a dash board 35 (Fig. 12), whose inclination is adjustable by screw 40. The dash board 35 includes petrol gauge 35a, speedometer 35b, tachometer 35c and clock 35d. The switches mounted on the control units 1 may include horn, direction indicator, windscreen washer, window raiser, radio and like switches. Warning lights indicating the actuation of certain switches may also be mounted on the inner faces of the control units. The switches are of the type which require little movement for actuation, e.g. rocker switches, or no movement, e.g. capacitive switch members.
Patent GB-1158036-A (GB)
Title: Improvements in Magnetic Memory Elements
IPC: G11C19/06
Filed: 1967-12-01
Abstract: 1,158,036. Magnetic storage devices. CSFCOMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. 1 Dec., 1967 [16 Dec., 1966], No. 54796/67. Heading H1T. A magnetic storage element comprises a thin plate of rectangular hysteresis loop material apertured as shown in Fig. 1 so as to provide legs 1, 2 and arms 6, 8, 10, 11, the arms 6, 11 being of lesser width b than the width a of the adjacent arms 8, 10, and each of the adjacent pairs of arms and legs having a total width (a+b) equal to that of the linking core portions 4 and 5. The magnetic circuit is completed by external paths 3. The legs 1, 2 are coupled in opposite respects to an input winding 12 and an output winding 13, and the core portions 4, 5 and the wider arms 8, 10 carry " send " and " receive " windings 14, 15 respectively. In operation, unidirectional fluxes are established in the core portions and the arms and legs by a send winding pulse, which is followed by the simultaneous application of pulses in the receive and input windings. The receive winding pulse reverses the flux direction in one of the legs 1, 2, the leg in which flux reversal takes place being determined by the polarity of the input winding pulse. It is stated that the minimum amplitude of the input signal for providing correct operation depends on the relative widths a and b of adjacent arms, the preferred relationship a/b being between 3 and 11À5.
Patent GB-549639-A (GB)
Abstract: 549,639. Aromatic diamidine salts. MAY & BAKER, Ltd., NEWBERY, G., and EASSON, A. P. T. April 25, 1941, No. 5381. [Class 2 (iii)] Readily soluble salts of symmetrical diamidine bases Am.R.X.R.Am, where Am is an amidine group, R is a benzene radical, and X represents a single bond or an alkane chain -(CH  2 ) 1 - 10 , in which one or more of the CH  2  groups may be replaced by O, S, or NH, or X is -CB<SP>1</SP>:CR<SP>11</SP>-, in which R<SP>1</SP> and R<SP>11</SP> each represent either a hydrogen atom or an alkyl, aryl, or aralkyl group, are prepared by interaction of the base or a salt thereof with hydroxyethane-or hydroxypropane-sulphonic acid or with a salt of such acid. Examples give the preparation of 4:4<SP>1</SP>- diamidinostilbene di-#-hydroxyethane sulphonate and di-γ-hydroxypropane sulphonate, 4:4<SP>1</SP>-diamidinodiphenoxypentane, 4:4<SP>1</SP>-diamidinodiphenoxypropane, 4:4<SP>1</SP>-diamidinodiphenylether, and 4:4<SP>1</SP>-diamidino-αα<SP>1</SP>-dimethylstilbene di-#-hydroxyethane sulphonate. Specifications 507,565, 510,097 and 549,634 are referred to.
Patent GB-1398176-A (GB)
Title: Carton blank
IPC: B65D5/72
Filed: 1972-11-30
Abstract: 1398176 Cartons A AHLSTROM OSAKEYHTIO 30 Nov 1972 [30 Nov 1971] 55289/72 Heading B8P In a carton blank comprising side wall panels 1-4, bottom closure flaps 6-9 and top closure flaps 12-15, two top closure flaps 12, 14 are each divided into three parts 12a, 12b, 14a, 14b by two cuts 18 which extend into the associated side wall panel 1, 3 for half its height to partially define side wall parts 1a, 3a. The uncut top closure flaps 13, 15 include tabs 13a, 15a which are engageable in slots 21 when the flaps 13, 15 are folded double about fold lines 20 to sandwich top closure flap outer parts 12b, 14b during setting up of the blank. Access to the contents of the closed carton is gained by downwardly and outwardly folding the top closure and side wall parts 12a, 1a and 14a, 3a about fold lines 19 which join the ends of each pair of cuts 18 in the side wall panels so that the carton contents are accessible from the side of the carton. The opened carton may be stacked.
Patent GB-1169299-A (GB)
Title: Improvements in and relating to Cutting Machines
Inventor: WEYANT VALONE VICTOR
IPC: B23D19/08
Filed: 1967-12-05
Abstract: 1,169,299. Shearing. E. W. BLISS CO. 5 Dec., 1967 [19 April, 1967], No. 55358/67. Heading B3W. A cutting machine, particularly for edge trimming, comprises a frame 30 carrying an upper and a lower co-operating cutting disc 12 and 14 mounted for rotation about spaced horizontal axes and a frame 16 supporting the frame 30 for angular movement about a line generally co-extensive with one of said axes-as shown the lower one-to vary the work entry angle. To effect this movement a shaft 42 supported by the U-shaped frame 16 is rotatable by means of a motor (50), Fig. 3 (not shown), gear reducer 52 and coupling 54, a threaded portion 46 of the shaft passing through a fixed nut assembly 48 in a bracket 49 on the rectangular frame 30. The sides and bottom of the frame 30 bear on the frame 16 through co-operating slide faces 32a and 32b or 34a and 34b which form segments of a cylinder the centre line of which is generally coextensive with the axis of the cutting disc 14 about which axis the frame 16 can be rotated to, e.g. the broken line position indicated. The discs are mounted on chocks 60, 62 which are relatively movable to vary the overlap or clearance of the discs by means of rods 70 having oppositely threaded portions 74, 76 passing through fixed nuts 74, 72 at the top of chock 60 and bottom of chock 62 respectively. The rods are rotated simultaneously by means of gears (82), Fig. 4 (not shown), driven by a pinion gear (88) positioned centrally of the four gears and actuated by an electric motor 90. The chocks are supported on, and movable vertically by a jack 96, slide members (63), Fig. 7 (not shown), engaging in slideways 64 on the frame 30 and flats on the rods 70 and on the internal faces of the gears allowing vertical movement of the rods relative to the gears. To take up any play in the threads on the rods 70 prior to cutting hydraulically-actuated pistons 100 on the lower chock, located between the discs and the adjacent rods 70, are caused to apply an upward force to the chock 60. The whole assembly is movable in a slideway 20, 22 in a base 18 in a direction parallel with the axes of rotation of the discs by means of a lead-screw 24 passing through a non-rotatable nut 26 on the frame 16 and rotatable by, e.g., an electric motor.
Patent GB-1116780-A (GB)
Title: Improvements in or relating to the manufacture of water-insoluble coatings of germanium dioxide on germanium crystals
IPC: C23C22/02
Filed: 1966-12-12
Abstract: A germanium crystal is provided with a protective layer of tetragonal germanium dioxide by oxidizing its surface by heating in a liquid containing hydroxyl groups under a pressure of at least 5 atmospheres and preferably of 30 atmospheres or more. Suitable liquids include water and alcohol and heating is carried out at temperatures above 150 DEG C.  Pressurization may be by ram pressure or by gas, or be produced solely by the vapour pressure of the liquid.  Etching of the germanium crystal before formation of the oxide layer may be avoided by dissolving hexagonal germanium dioxide, which in contrast to tetragonal dioxide is soluble in water to saturation in the liquid before inserting the germanium crystal.ALSO:A germanium crystal is provided with a protective layer of tetragonal germanium dioxide by oxidizing its surface by heating in a liquid containing hydroxyl groups under a pressure of at least 5 atmospheres and preferably of 30 atmospheres or more. Suitable liquids include water and alcohol and heating is carried out at temperatures above 150 DEG  C. Pressurization may be by ram pressure or by gas, or be produced solely by the vapour pressure of the liquid.  Etching of the germanium crystal before formation of the oxide layer may be avoided by dissolving hexagonal germanium dioxide, which in contrast to tetragonal dioxide is soluble in water, to saturation in the liquid before inserting the germanium crystal.
Patent GB-1164138-A (GB)
Title: Improvements in or relating to Electrical Machines
Inventor: BIRD WILLIAM GEORGE
IPC: H02K19/20
Filed: 1966-12-14
Abstract: 1,164,138. Inductor-type machines. W. G. BIRD. 14 Dec., 1967 [14 Dec., 1966], No. 55960/66. Heading H2A. An inductor type alternator or synchronous motor comprises a toroidally wound stator 11 axially spaced from field-generating stator parts 3, 4 by air-gaps in which rotate inductor discs having regions of high and low permeability 17, 18 and 19, 20 respectively. The field poles are excited, as shown, by coils 6, 7, but permanent magnets may be employed (Fig. 5, not shown). The central stator consists of a central core 11 of trapezoidal section and carrying six like-shaped toroidal coils 14, and outer sections 12, 13, suitably slotted at 15 to accommodate the ends of the coils. All magnetic parts are of spirally wound strip secured by impregnation. They may be segmented to facilitate the mounting of the coils. By shaping their regions of permeable material suitably, the rotors can be made to produce any desired wave-form, and the two components are secured against centrifugal force by tyres 21, 22. In order to reduce the effective reactance of the windings 14, the ends of the slots 15 may be filled with conducting metal. The eddy-currents in these fillings have the effect of suppressing parasitic flux. Alternatively, the same effect may be produced by a similarly filled radial groove in the rotor (Fig. 3, not shown). Cooling air or gas is drawn in at radial tubes 41 passing through the core by fans 44, 45 on the rotor, and expelled at 42. Alternatively, the machine may be force-fed with cooling liquid, such as, oil or water which may vaporize. If desired the whole of the field body may be laminated for A.C. use and pole-numbers other than two may be used. The machine may be used as a Selsyn transmitter or receiver, or as a resolver. The machine may have additional stators and rotors.
Patent GB-1164310-A (GB)
Title: Involute Checking Apparatus having a Recording System.
Inventor: EHRHARDT JOACHIM
IPC: G01B7/28
Filed: 1966-12-15
Abstract: 1,164,310. Measuring gear profiles electrically. CARL ZEISS JEMIA VEB. Dec.15, 1966, No.56217/66. Heading G1N. The test values from the sensor 15 of an involute (gear) tester are plotted along the Y-axis of a recorder 17 whose X-scale is variable in response to signal received via an analog computer 21 from electric transducers such as potentiometers 18, 19, 20. A gear wheel to be tested (not shown) is mounted to rotate coaxially with a cylinder 1 and a feeler arm 16 of the inductive sensor 15 is arranged to follow the gear profile, the sensor giving an output if the profile differs from a required evolute curve, through which curve the sensor 15 is itself causes to move by perpendicularly sliding carriages 13, 14. The cylinder 1 is rotated by tangential movement of a body 2 which frictionally engages the cylinder and is moved by a threaded rod 3 rotated by a motor 6 or by a handle 4. Movement of the body 2 also produces via a lever 9 pivoted at 11, parallel movement of the carriage 13 carrying the sensor 15, perpendicular movement thereof being produced by the carriage 14 which supports the carriage 13. Displacement of the body 2, and therefore the angular position of the cylinder 1, is signalled by potentiometers 18, 19 to an analog computer 21, together with a signal from the potentiometer 20, dependent upon the position of the carriage 14, and therefore, upon the radius of the gear . wheel base circle. The anaglogue computer uses these signals either individually or in combination to control the X-axis drive 29 of the recorder chart.
Patent GB-1211287-A (GB)
Title: Polymerisation of ethylene
IPC: C08F10/00
Filed: 1968-11-28
Abstract: 1,211,287. Ethylene polymerization. MITSUI PETROCHEMICAL INDUSTRIES Ltd. 28 Nov., 1968 [30 Nov., 1967], No. 56568/68. Heading C3P. Olefin polymers are prepared by polymerizing in a solvent using a catalyst consisting of (i) solid particles of magnesium carbonate (including basic magnesium carbonate) having chemically bound thereto a titanium and or vanadium halide and (ii) on organoaluminium compound and or a dialkyl zinc. The magnesium carbonate may have a particle size of 1-70 microns. In the Examples, (1) magnesium carbonate and titanium tetrachloride are reacted to form component (i) and this, with tri-isobutyl or triethyl aluminium, is used to continuously polymerize ethylene in hexane in the presence of hydrogen, (2) as (1) except that component (ii) is triethyl aluminium and this catalyst system is used to copolymerize ethylene with butene or propylene, and (3) as (1) except that (i) is formed by reacting magnesium carbonate with titanium tetrabromide, ethoxy titanium trichloride, diisobutoxy titanium dichloride, vanadium tetrachloride, or vanadium oxytrichloride, and (ii) is diethyl aluminium chloride, triethyl aluminium, diethyl zinc, ethyl aluminium sesquichloride or ethyl aluminium ethoxy chlorides.