baber/WOPTO huggingface dataset:
Patent GB-952432-A (GB)
Title: Improvements in or relating to gyratory crushers
IPC: B02C2/04
Filed: 1962-11-14
Abstract: 952,432. Gyratory crushers. NORDBERG MANUFACTURING CO. Nov. 14, 1962 [Nov. 14, 1961], No. 43146/62. Heading B2A. A frusto-conical liner 140, Fig. 3, for the crushing-bowl insert 134 of a gyratory crusher has a continuous outwardly-projecting ledge 142 at its upper end, the ledge having an upwardly and outwardly inclined circumferentially-extending lower surface formed as a series of steps eccentric to the axis of the liner. The inner portion 144 of the bowl insert extends inwards towards the upper portion of the liner and has a diameter at its inner periphery slightly greater than the outer diameter of the ledge 142 on the liner. The replaceable liner is held in place by a number of wedges 146 each having a crowned forward-surface 148 and a smooth undersurface, so that it can slide on a flat annular surface 149 on the bowl insert. The wedges are forced radially inwards under ledge 142 on the liner by bolts 150 fitting into sockets 152 in the insert, each bolt having a thrust nut 154 with a convex forward-surface engaging a corresponding concave surface 155 in the rear of the wedge. The ledge 142 is formed into a number of segments 156 each helically disposed and swung on an axis eccentric to the liner axis, the direction of the helix of each surface 156 relative to the direction of rotation of the crushing-head being such that the liner tends to tighten itself on the crowned surfaces 148 of the wedges 146. The wedges are forced in against the locking surfaces 156 until the liner is pulled up firmly against the bowl. A feed cone 162 is positioned with its lower end 164 resting against a blunt conical face 166 on the upper outer portion of the liner ledge 142.
Patent GB-930320-A (GB)
Title: Vehicle steering mechanism
IPC: F16H55/28
Filed: 1960-12-15
Abstract: 930,320. Rack and pinion gearing. BURMAN & SONS Ltd., and W. H. BRIGGS. Dec. 8, 1961 [Dec. 15, 1960], No. 43239/60. Class 80 (1). In a rack and pinion vehicle steering mechanism, a pressure plate 12 is resiliently urged against the side of the rack remote from the pinion by screw means 15 to vary the force exerted on the rack 10. The pressure plate may be of resilient construction, being curved or having a rib to engage the rack and located laterally by fixed pegs 13 over an abutment 14. Alternatively the pressure plate may be of rigid construction and resiliently urged against the rack by a spring between the plate and the adjusting screw.
Patent GB-1404660-A (GB)
Title: Five-grade motor oil for internal combustion engines
IPC: C10N30/04
Filed: 1972-09-19
Abstract: 1404660 Lubricant motor oil composition STANDARD OIL CORP 19 Sept 1972 [26 Nov 1971] 43269/72 Headings C5E and C5F A blended base oil composition for use in a five grade SAE 5W-40 motor oil consists of a blend of component A, which is a mixture of from 72-84 parts by volume of a solvent extracted neutral oil of about 140 SSU viscosity at 100‹ F. or of 100 SSU at 100‹ F., in the latter case having a b.p. in the range of 720-835‹ F., a viscosity of 3À9 to 4À2 centistokes at 210‹ F. and a maximum viscosity of 6À15 poises at 0‹ F. and from 16 to 28 parts by volume of a solvent extracted neutral oil of 750-800 SSU at 100‹ F. and component B, which is a blend of at least two fractions of dewaxed oils obtained from a substantially aromatic free catalytically cracked stock, the blend having a minimum viscosity at 210‹ F. of 3À2 centistokes, a maximum viscosity at 0‹ F. of 5À9 poises and a maximum of 15% by volume boiling below 725‹ F. Component B comprises from 70-80% by volume of the composition. Component A has a minimum viscosity at 300‹ F. of 2À5 centistokes, a minimum viscosity at 210‹ F. of 6À0 centistokes and a maximum viscosity at 0‹ F. of 20À0 poises with zero per cent boiling below 725‹ F. A motor oil besides comprising the above base oil may also comprise a multifunctional detergentdispersant-inhibitor additive (e.g. mixture of zinc dialkyldithiophosphate, calcium alkyl phenate, succinimide and magnesium sulphonate) and a viscosity index improver, e.g. polymethylacrylate.
Patent GB-928249-A (GB)
Title: Improvements relating to devices for use in combination with magnetic storage drums
IPC: G11B5/40
Filed: 1961-12-04
Abstract: 928,249. Supporting magnetic recording &c. heads. PHILIPS ELECTRICAL INDUSTRIES Ltd. Dec. 4, 1961 [Dec. 7, 1960], No. 43283/61. Addition to 896,336. Class 40 (2). Improvement on the parent Specification wherein, in place of the vane, an air-scoop 16 operates a bellows 15 which lifts to move the head-guard lever 9-10, when a safe air-cushion has been established by the rotation of the drum. A modified scoop (Fig. 2 (not shown)) is adjustable relative to the drum to adjust'the threshold level. Compared with the vane, the present improvement claims improved sensitivity.
Patent GB-1110024-A (GB)
Title: Reaction product of ammonia or an amine with carbon disulfide and an aliphatic epoxide
IPC: C10M159/12
Filed: 1965-10-13
Abstract: A lubricant composition comprises an animal, vegetable or mineral lubricating oil, or a synthetic lubricating oil such as dioctyl adipate or di-2-ethylhexyl sebacate, in admixture with nitrogen and sulphur containing derivatives obtained by reacting at a temperature ranging from -75 DEG  C. to decomposition point one equivalent of ammonia or a primary or secondary amine, half to one equivalent of carbon di-sulphide and one to four equivalents of an epoxide or lactone having the formula <FORM:1110024/C4-C5/1> wherein X represents O or S, n is 0, 1 or 2, R3, R4, R5 and R6 represent hydrogen, alkyl, aralkyl, cycloalkyl, alkenyl, aryl or alkaryl (which may or may not be substituted, e.g. by halogen atoms or carboxylic ester groups), or wherein R5 and R6 jointly represent an oxo radical. The nitrogen and sulphur containing derivatives preferably comprise from 0.1 to 10% by weight of the lubricant composition. The lubricant composition may also contain as further additives detergents, corrosion, rust and oxidation inhibitors, pour point depressants, viscosity index improvers and anti-foaming agents.ALSO:Nitrogen and sulphur containing derivatives are obtained by reacting at a temperature ranging from -75 DEG  C. to decomposition point one equivalent of ammonia or a primary or secondary amine, half to one equivalent of carbon disulphide and one to four equivalents of an epoxide having the formula <FORM:1110024/C2/1> wherein X represents O or S, n is 0, 1 or 2, and R3, R4, R5 and R6 represent hydrogen, alkyl, aralkyl, cycloalkyl, alkenyl, aryl or alkaryl, which may or may not be substituted, e.g. by halogen atoms or carboxylic ester groups, or a polymer of such epoxide.  The amine reactants include polyamines and also heterocylic amines such as piperidine, pyrrole, imidazoline, pyrazole and piperazine.  The reaction may be conducted in the presence of a solvent and/or a basic catalyst such as pyridine.  An example is also given in which beta-propiolactone is used in place of the epoxide reactant.
Patent GB-1128034-A (GB)
Title: Programmable positioning table
IPC: G05B19/23
Filed: 1965-10-13
Abstract: 1,128,034. Programmed control of position. TRANSISTOR AUTOMATION CORP. Oct. 13, 1965 [April 21, 1965], No.43498/65. Heading G3N. [Also in Division H2] A programmable positioning table comprises two super-imposed slides, having dependent and simultaneous movements by stepping motors, each motor being controlled by a programming means, for generating pulses in one-to-one correspondence between pulses and increments of stepping movement of the motor, through a convertor receiving the generated pulses and converting them into phase shift pulses driving the motor in one or the other direction, a comparator being provided for each motor whereby pulses fed back from the associated slide are compared with the input pulses and the programming means stopped when they do not match. As shown for positioning a table 10, associated with a micro-welding unit, not shown, stages 14, 16 are moved along Y and X axes by lead screws 32, 34 driven by reversible stepping motors 36, 38. Rotation of the lead-screws is sensed by pulse-generator 48, 50, each comprising, a toothed aluminium disc having the gaps between teeth filled with an epoxy resin in which is dispersed iron filings; the filings are magnetized by a fixed permanent magnet and signal pulses are induced in a coil mounted near the periphery of the disc. The stages are driven by the lead-screws through a spring-loaded anti-back lash nut. In a positioning operation, a punched tape 28 is read by a reader 26 and pulses fed to pulse comparators 52, 54 and converters 40, 42. The pulse outputs from the converters, representative of increments of movement in a desired direction, are fed through pulse converters 40, 42, in which they are phase shifted in dependence on direction of movement, and amplifiers 44, 46 to the X and Y axes motors 38, 36. The feedback pulses from the generators 48, 50 are compared with the tape pulses in the comparators 52, 54 and a mismatch generates a signal which stops the tape reader 26. Alternatively, the table is moved in a step and repeat mode employing electronic counters. Each stepping motor, Fig. 7, has bifilar windings 104 and is stepped by switching the input pulse from one half of the winding to the other half, which is wound in the opposite direction, by a flip-flop 106 controlling flip-flops 108, 110 each having a pair of outputs connected to either end of the windings.
Patent GB-967341-A (GB)
Title: Oxidation of hydrocarbons
Inventor: WILLIAMS ROBERT ARTHUR
IPC: C07C29/128
Filed: 1961-12-06
Abstract: Aliphatic and alicyclic hydrocarbon are oxidised with oxygen or an oxygen-containing gas so as to increase the proportion of alcohol in the product by adding to the hydrocarbons prior to or during the oxidation step a proportion of a dicarboxylic acid, undiluted with a water or a proportion of an ester of a dicarboxylic acid, the oxidation being carried out if desired in the presence of an esterification or ester interchange catalyst. The process may be carried out continuously or otherwise. Suitable hydrocarbons for use as starting materials are aliphatic hydrocarbons containing up to 30 carbon atoms, e.g. n-octane and n-dodecane, and alicyclic hydrocarbons containing up to 12 carbon atoms such as cyclohexane, cyclo-octane and cyclododecane. The dicarboxylic acids, whether used as such or in the form of their esters are preferably those containing 2-12 carbon atoms, e.g. adipic acid. Suitable catalysts for the process are the naphthenates of cobalt and manganese. Examples are given of the oxidation of cyclohexane to cyclohexanol with some cyclohexanone, in the presence of adipic acid and dimethyl adipate.
Patent GB-890779-A (GB)
Title: Improvements in tubulous vapour generators and in vapour generating tubes
IPC: F22D7/00
Filed: 1960-12-21
Abstract: 890,779. Tubular elements for sub-critical boilers. BABCOCK & WILCOX CO. Dec. 21, 1960 [Dec. 28, 1959], No. 43907/60. Class 123(2) In order to assure nucleate boiling and delay breakdown to film boiling of the liquid flowing through the vapour generating tubes of a subcritical pressure boiler of the forced, or natural, circulation type each tube 10 is formed, internally, throughout its length, with a continuous helical groove 14 to define a helical rib 16 which provides fluid turbulance along the inner surface of the tube. The rib 14, having a helix slope angle of approximately 15 degrees, has inclined sides 16<SP>1</SP>. In a modification, Fig. 2, each tube is grooved to provide a pair of continuous ribs. The grooves and the ribs are proportioned so that where:- P=the distance between adjacent ribs measured longitudinally of the tube. H and W=the height and width respectively of a rib. L=the advance in one complete revolution of the helical path of a rib. D=the minor inside diameter of the tube. then- P falls within the range 10-25, and is preferably H between 12-20. W falls within the range 0À2-0À55, and is prefer- P ably between 0À3-0À4. L falls within the range 0À1-2À5, and is prefer- D ably between 0À1-1À5. H falls within the range 0À03-0À08, and is prefer- D ably between 0À04-0À065. The range of the valve S , where S =the length H parallel to the tube axis of the inclined side of a rib, advantageously is also within the range of 0-2À5 and is preferably between 0-1À5.
Patent GB-1395524-A (GB)
Title: Method and apparatus for geochemical surveying
IPC: G01N1/00
Filed: 1972-05-02
Abstract: 1395524 Prospecting BARRINGER RESEARCH LTD 2 May 1972 [7 May 1971] 44053/72 Divided out of 1395523 Heading E1F [Also in Division G1] The Specification describes the same apparatus as that shown in Figures 1 and 2 of the parent Specification 1395523. The claims however differ being drawn to a method of collecting and analysing atmospheric particulates, and to apparatus for use in geochemical surveying.
Patent GB-1522306-A (GB)
Title: Nondestructive testing of materials
IPC: G01N29/06
Filed: 1976-04-12
Abstract: 1522306 Ultrasonic flaw testing STEEL CASTINGS RESEARCH & TRADE ASSOCIATION 12 April 1976 [12 Jan 1975] 44287/74 Heading GIG  A workpiece is non-destructively tested for flaws by scanning its surface with an ultrasonic probe to produce an initial C-scan of bottom surface echoes (which are attenuated on passage through a flaw), detecting those flaws above a certain severity, and then making repeated scans of any area of the workpiece in which a flaw was detected to produce a succession of C-scans each showing the extent of the flaw at a particular depth below the surface of the workpiece, and recording the C-scans on an X-Y plotter. The severity discriminator has an adjustable acceptance window (VR1, VR2) Fig. 2 (not shown), different severities ot flaw being plotted in different colours of ink. An A-scan oscilloscope is provided for checking the peak level of the back surface echoes and for determining the depth of the flaws. L.E.D's indicate whether or not the discriminator threshold is exceeded. Sine-cosine potentiometers at the pivots of the linkages supporting the probe control the pen position of the recorder.
Patent GB-1074218-A (GB)
Title: Bottle cleaning agents
IPC: C11D1/72
Filed: 1965-10-22
Abstract: Bottle-cleaning agents comprising from 50-95% of fine grained caustic alkali with a grain size of less than 3 mm. diameter and a reaction product of propylene oxide with aliphatic polyalcohols having 4 or more hydroxyl groups in the molecule.  Other additives may include phosphates, sodium silicate and sodium sulphate.
Patent GB-1468496-A (GB)
Title: Quick-change spindle nose assembly
IPC: B23B31/02
Filed: 1975-10-29
Abstract: 1468496 Chucks BENDIX CORP 29 Oct 1975 [25 Nov 1974] 44739/75 Heading B3B A quick change spindle nose assembly for axially clamping a tool holder to a spindle 12 comprises a holder sleeve 14 fixed to the spindle, a control sleeve 22 slidable on the holder sleeve for limited axial movement, biasing means 26 urging the control sleeve in one direction to a first extreme position so that a cam surface 36 moves clamping balls 32 inwardly to clamp the tool holder, and the control sleeve 22 being manually movable in an opposite direction against said biasing means to a second extreme position whereat a groove 37 is in registry with balls 32 and allows them to be moved radially outwards as the tool holder is removed, and is characterised by the provision of a pin 44 and slot connection between the holder sleeve and control sleeve whereby in said second extreme position the control sleeve can be rotated to axially lock the control sleeve in said second extreme position. The slot is L-shaped having a leg parallel to the axis of the spindle and a leg transverse thereto. The holder sleeve 14 is fixed to the spindle 12 by a screw 16 and limited axial adjustment is provided by an eccentric cone 18.
Patent GB-1416756-A (GB)
Title: Sample tray insert
IPC: B01L9/00
Filed: 1973-09-26
Abstract: 1416756 Test-tube holder G D SEARLE & CO 26 Sept 1973 [27 Sept 1972] 45082/73 Heading B1X [Also in Division G1] A tray defining a plurality of apertures of uniform diameter for accommodating a plurality of samples vertically in said apertures, comprises at least one generally annular device of resilient material for installation in any of said apertures to support therein a sample tube inserted therethrough said device including a section extending into and within said aperture upon such installation and enlarging upwardly from a reduced diameter, to facilitate retention and accommodation of said device to said uniform diameter aperture, during angular displacement of said device, said device protruding below said tray upon such installation to include circumferentially spaced gripping portions extending downwardly and inwardly to resiliently engage the inserted tube, whereby lateral displacement of a protruding end of an inserted tube may be effected as well as longitudinal displacement of the inserted tube relative to said tray upon application of a predetermined force, without affecting the support of such tube or any remaining tubes similarly installed in said tray. Such inserts allow the sample tubes themselves to support the weight of the tray, and allow some lateral movement of the bottoms of the tubes so that a measuring device positioned under the tray may be used in connection with a particular tube or tubes only.
Patent GB-1377014-A (GB)
Title: Machine tools
IPC: B23Q35/06
Filed: 1972-10-02
Abstract: 1377014 Copying lathes DUPLOMATICMECCANIOA APPLICAZIONI OLEODINAMICHE SpA 2 Oct 1972 [2 Oct 1971] 45388/72 Heading B3T An hydraulic copier device for use in a lathe comprises a cranked lever 1, 3 pivotable about a substantially vertical axis and carrying a stylus 5 in one arm 1 thereof, a tool carrying slide the feed and return movement of which are controlled by a copier valve 4 which is actuated by the other arm 3 of the crank lever, the crank lever being provided with means to effect movement of the tool slide not dependent on the slope of the copier template to pivot-the crank lever during the non-copying movements thereof. The means includes a lever 15 attached to one arm 1 of the crank lever which is engageable at one end 15a with a further lever 18 engageable by a spindle 23 of the stop drum 24. A rocking lever 30 whose ends 30a and 30b engage a plunger 32 of an electromagnet 33 and a spring biased rod 36 respectively, which in the event of power failure with subsequent deactivation of the electromagnet 33 the rocking lever 30 is pivoted by the action of the spring 37 and the rod end 35a engages the lever 15 which pivots the arm 1 of the crank lever thus withdrawing the stylus and activating the control valve to withdraw the tool slide. In a similar manner a condition of hydraulic balance is achieved following impacts between the adjustable stops 25 and the fixed stop 27 whereby as soon as an impact occurs the rotary stop drum 24 moves axially in the direction of arrow F2 and hence by way of rod 23 aoutates lever 18 to displace arm 15 the movement of which is transferred to the rod 4 which controls the copying valve which subsequently stops the advancing movement of the tool slide thus maintaining very precise control of the tool slide to prevent imperfections occurring in the workpiece surface. An addition stylus 12 may be provided attached to lever arm 1 by a plate 8 to facilitate.
Patent GB-1475248-A (GB)
Title: Shuttle speed control device
IPC: G03B21/48
Filed: 1975-10-31
Abstract: 1475248 Film loop control BELL & HOWELL JAPAN Ltd 31 Oct 1975 [22 Nov 1974] 45440/75 Heading G2E In a cine camera or projector in which an intermittent film feed 16 drives the film 17 through the exposure station and a capstan 19 drives the film continuously through the sound station, the size of the loop 23 between the two stations is sensed by a lever 12 which alters the speed of the film feed 16 if the loop becomes too large or too small. The feed 16 is driven by a motor 1, on the shaft 2 of which is fixed a half pulley 3. Another half pulley 4 is mounted slidably on shaft 2, and the two half pulleys are rotated together by a pin 5 on one engaging in a hole 6 in the other. The lower face of half pulley 4 has a slanted pawl 7 which co-operates with another slanted pawl 8 fixed on a brake disk 9 rotatably mounted on shaft 2. A belt 14 passing round the two half pulleys also drives, via a pulley 21, a shaft 15 which drives the intermittent film feed 16. The capstan 19, which, together with a pinch roller 20, drives the film past the sound head 18, can be driven by the same motor 1 or a separate motor 1'. The film loop 23 is sensed by one end of a spring-loaded lever 12, the other end of which carries a brake pad 11. If the loop becomes too large, the brake pad is pivoted out of contact with the brake disk 9, position of Fig. 2. Half pulley 4 moves downwards, so that the space between the two half pulleys becomes wider. Belt 14 thus rides round a smaller diameter, and is therefore driven more slowly. Feed 16 drives the film more slowly than capstan 9, so that the slack in loop 23 is taken up. If the loop becomes too small, brake pad 11 pivots into contact with disk 9, and slows it down. Thus the slanted portion of half pulley 4 rides up the slanted portion of pawl 8, and half pulley 4 moves upwards, position of Fig. 1, (not shown). Belt 14 now rides round a larger diameter, and hence is driven quicker. This is transferred to the feed 16, which drives the film more quickly until the loop is large enough to release the brake again.
Patent GB-1284076-A (GB)
Title: Improvements in or relating to pneumatic tyres
Inventor: YOUNG MAURICE ALFRED
IPC: B60C9/00
Filed: 1968-09-26
Abstract: 1284076 Pneumatic tyres DUNLOP HOLDINGS Ltd 29 Sept 1969 [26 Sept 1968] 45650/68 Heading B7C [Also in Division D1] A pneumatic tyre comprises a carcass and a breaker assembly comprising at least one breaker layer of yarns or cords arranged in side-by-side parallel arrangement and impregnated with a rubber composition such as a resorcinolformaldehyde latex, the yarns or cords having an individual diameter of between 0À0005 and 0À0008 inches. The carcass may be of radial- or cross-ply construction and comprise textile cords such as rayon.
Patent GB-1115414-A (GB)
Title: Improvements in garments for controlling the temperature of the body
Inventor: BURTON DEREK RODNEY
IPC: B64D10/00
Filed: 1965-10-28
Abstract: 1,115,414. Heating or cooling garments. MINISTER OF TECHNOLOGY: 21 Oct., 1966 [28 Oct:, 1965], No. 45709/65: Heading A3V. Heating. or cooling liquid pumped into a suit through. an inlet 11 passes through pipes 16 and 17 at: one side and. via. a pipe 18, through pipes 19<SP>;</SP> and 20 at the other side to inlet manifolds 21, 22: at the wrist and 23,(24): at the ankle. Pipes following a circuitous path from the manifolds are located along part or the whole of their length in tunnels on the inner face of the suit which allow, the pipes limited movement relative to the suit to increase the wearer's, mobility. The tunnels may be formed by stitching strips of. the same material as the suit to the. inner face of' the suit. No pipes overlie the front of the knee and the outside of the elbow and behind the knee, inside the. elbow joint and in the buttock region, the pipes are arranged transversely of the leg, arm and body respectively. The fluid: then, passes through return manifolds (13), 13a, (14), 14a, at waist level to an outlet pipe 12.