baber/WOPTO huggingface dataset:
Patent GB-901688-A (GB)
Title: Centrifugal casting of concrete pipes
Inventor: HUME DAVID HAMILTON
IPC: B28B21/34
Filed: 1958-11-26
Abstract: 901,688. Centrifugal casting of concrete pipes. HUME PROPRIETARY Ltd., W. R. Nov. 26, 1958, No. 38143/58. Class 87(2). Concrete pipes are centrifugally cast in a cylindrical mould 18 rotatable directly in contact with and supported on runner wheels 15, serrations 20 being formed either on the periphery of at least one of the runner wheels 15 (as shown in Fig. 1) or on the periphery of the mould 18 (as shown in Fig. 5) for subjecting the mould to more than 2,000 vibrations per minute as it rotates. The mould may be moved longitudinally by a roller 22 engaging one end of the mould and connected via shaft 27 to lever 30 so as to disengage the serrations 20 and allow rotation of the mould without vibration. Adjacent the serrations 20, the runner wheels 15 may have smooth peripheral surfaces, peripheral rings 19 on the mould being moved from the serrated to the smooth portions (or vice versa) of the wheels 15 on operation of the lever 30. The frequency of vibration, which depends on the width and spacing of the serrations and on the peripheral speed of the mould, is preferably between 5,000 and 8,500 vibrations/ minute. In the apparatus illustrated in Fig. 5, the mould 18 is provided with ribs or teeth 32 which engage pneumatic tyres 33 fitted to the runner wheels.
Patent GB-1374994-A (GB)
Title: Out-of-balance weight assembldies
IPC: G01N3/34
Filed: 1971-08-16
Abstract: 1374994 Vibrators RUSSELL FINEX Ltd 8 Aug 1972 [16 Aug 1971] 38375/71 Heading F2X An out-of-balance weight assembly intended for clamping to a driving shaft 10 comprises a generally semi-circular weight 12 having a pair of jaws 13, 14 and a cylindrical bore 16. Located within the bore 16 is a split bush 21, the outer surface of which fits closely within the bore 16 and the inner surface of which fits closely around the shaft 10. The axes of these surfaces are eccentric with respect to one another. The wall of the bush 21 is discontinuous at a location 22 part-way between the parts of the bush having greatest and least radial wall thickness. In use, the weight 12 is clamped to the bush 21 by tightening a bolt 20 extending through flanges 17, 18 of the jaws 13, 14, this action also clamping the bush 21 on to the shaft 10. A driving connection is thus achieved between the shaft 10 and the weight 12. The amplitude of the out-of-balance force produced on rotating the weight assembly may be varied by loosening the bolt 20 and rotating the split bush 21 relative to the weight 12 by means of a lever 23 welded to the bush 21. A further lever 28 lying over the upper radial surface of the weight 12 has an eye 29 encircling the shaft 10, the eye 29 being provided with a lug 30 engaging in a keyway 27 in the shaft 10. When the bolt 20 is loosened, the lever 27 may be used to vary the angular position of the weight assembly, and hence the direction of the out-of-balance force when the assembly is rotated, with respect to a datum on the shaft. This feature is of particular application when the driving shaft carries a second out-of-balance weight assembly. The resultant force of the two out-of-balance weights may thus be varied by changing their relative angular positions. In the embodiment illustrated, the driving shaft 10 projects from an electric motor 11. It may, however, project from a vibrator housing with a pulley attached to it and be driven by a belt drive from a motor. An advantage of this arrangement is that when a constant speed electric motor is employed, the speed of rotation of the shaft 10 may be varied readily by changing the relative sizes of the pulleys. The following abridgments are included in this series since the Specifications were through an error, not allotted to this group. References to them will be found in the name index to this volume.
Patent GB-1433359-A (GB)
Title: Substituted alkylphenols and their use for the control of micro organisms and the preservation of materials
IPC: A23K1/16
Filed: 1973-08-16
Abstract: 1433359 Substituted alkylphenols and their use for the control of microorganisms and the preservation of materials CIBA-GEIGY AG 16 Aug 1973 [28 Aug 1972] 38829/73 Heading C2C The invention comprises an alkylphenol of formula wherein X 1  and X 2  represent halogen, and m is an integer from 1 to 11. This compound may be obtained by reducing a ketone of formula wherein X 1 , X 2  and m are as defined in claim 1, alternatively, by halogenating a compound of formula wherein X 1  and m are as defined above. In Example I, the following intermediates are prepared:-(A) caproic acid-3,5-dichlorophenyl ester by the reaction of 3,5-dichlorophenol with caproic acid chloride, (B) 2- hydrory-4,6-dichlorocaprophenone by the rearrangement of compound (A) in the presence of AlCl 3 (anhyd.). The invention also relates to a solid or liquid composition useful for the control of microorganisms comprising an alkylphenol of Formula I and one or more of the following: a solid inert carrier, a surface-active agent, an agent for protection against light, an optical brightener, a fungicide, a bactericide or an animal foodstuff.
Patent GB-1081147-A (GB)
Title: Method of producing low carbon non-aging deep drawing steel
Inventor: HOLMES RONALD LEADREW WILLIAM
IPC: C21C7/00
Filed: 1965-09-14
Abstract: Low carbon (0.10% max) non-ageing deep drawing steel is produced by tapping molten steel having S and P levels each below 0.04% and a C level at least 0.05% and above that desired in the cooled casting, preferably 0.02-0.03% higher (0.13% max.), e.g. from an open hearth furnace, into a ladle, adding to the molten steel Mn and Al in amounts corresponding to the desired residual quantities (0.20-0.60% and 0.02-0.08% respectively) in the cooled casting, and teeming the molten steel into a mould whilst shielding it from the air, an inert atmosphere being maintained about the tapping stream by bubbling inert gas (A, Kr, Xe, He or Ne) from below the molten steel surface in the ladle with or without injecting inert gas uniformly from a distributor pipe surrounding the tapping stream.  The ladle is preferably enclosed with a cover provided with an opening for the tapping stream.  Air may be excluded during teeming by purging the mould also with inert gas. The Mn may be added during tapping or with the Al addition.  The steel may contain up to 0.01% Si.
Patent GB-886933-A (GB)
Title: Fusing arrangement for electric incandescent lamps
Inventor: FENN HENRY ALFRED
IPC: H01K1/66
Filed: 1959-11-18
Abstract: 886,933. Electric incandescent lamps with cutouts. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 3, 1960 [Nov. 18, 1959], No. 39150/59. Class 39(2) An electric lamp has a fuse connected in series with the filament within the envelope of the lamp, the fusible element being enclosed in a glass sheath open at one end, this end being directed towards the interior of the envelope so that vaporized material produced by the blowing of the fuse is directed into the lamp in the opposite direction away from the seal. A projection lamp consists of an envelope 1 to the base 4 of which is secured a cap 3. The filament 2 consists of parallel sections arranged in a plane, the sections being supported by hooks or wires 8 embedded in glass beads 9 carried by conductors 10 secured to frame members 5, are of which is attached to one of the lead-in conductors 7 and the other to a dummy lead 12. The other lead-in conductor 7<SP>1</SP> is connected to a fuse 19 consisting of a lead 22 to the conductor 7<SP>1</SP>, a fusible element 19<SP>1</SP> and a lead 21 to one of the frame members 5. The element 19<SP>1</SP> is enclosed in an open-ended glass tube 20 parallel to the longtitudinal axis of the lamp with the open end directed away from the base 4. The element 19<SP>1</SP> is of dumet and the leads 21, 22 of nickel. The cap 3 is secured to the base 4 by stub leads 13 energizing lugs 14 pressed in from the wall of the cap.
Patent GB-361679-A (GB)
Title: Improvements relating to axle boxes for vehicles
IPC: B61F15/22
Filed: 1930-12-30
Abstract: 361,679. Lubricating axle bearings. PEYINGHAUS, W., Egge, near Volmarstein, Ruhr, Germany. Dec. 30, 1930, No. 39154. [Class 12 (ii).] In a railway-vehicle axle-box, a transverse partition d having a conchoidal cross section completely separates the oil bath a from the dust pocket c so as to prevent splashing of oil into the latter, a nose-like projection g on the lower bush member f of the bearing interfitting with the partition. Oil dripping into the space i adjacent the pocket c returns to the bath through a passage h.
Patent GB-1343388-A (GB)
Title: Power tool clutch
IPC: F16D43/208
Filed: 1972-08-23
Abstract: 1343388 Powered screwdrivers INGERSOLLRAND CO 23 Aug 1972 [11 Nov 1971] 39245/72 Heading B3N [Also in Division F2] The power-operated screwdriver shown has a removable spindle 6 rotated by a driving member 15 which is in turn rotated by a member 14 through a torque-limiting clutch having balls 26 in holes 25 of member 15 which are in engagement with peripheral flats of a portion 23 of member 14. The balls are pressed resiliently by the conical surface 29 of a member 28 which is biased by a spirng 30. The clutch is variable in its limiting torque by means of a nut adjustment 33. The clutch is also designed (Fig. 2, not shown) to allow a greater torque in one rotational direction than in the other. The spindle 6 is retained in the screwdriver by a spring pressed ball 20, and a screw finder 7 is slidably (biased by spring 8) mounted around the spindle. The torque of the clutch is altered by inserting a tool in an aperture 36 of the nut 33 to hold it, whilst rotating the spindle 6.
Patent GB-827154-A (GB)
Title: Removing hydrogen sulphide from gases
Inventor: STANIER HAROLD
IPC: C10K1/16
Filed: 1956-12-27
Abstract: 827,154. Purifying gases. GAS COUNCIL. Nov. 20, 1957 [Dec. 27, 1956], No. 39353/56. Class 55 (2). In a process for removing H 2 S from gases such as coal gas, the gas is washed with a solution in a cresylic solvent of an organic compound which will yield a readily oxidizable reduction product with H 2 S, the solution being regenerated by oxidation with air or oxygen. The term " cresylic solvent " is intended to include cresylic acid and any of the phenolic constituents of cresylic acid. Methylene blue base dissolved in cresylic acid may be used, the solution being treated periodically with a solution of sodium carbonate or bicarbonate to maintain the pH at about 8. The process may be carried out at atmospheric or super-atmospheric pressure. Specifications 827,151 and 827,152, [Group III], are referred to.
Patent GB-1399276-A (GB)
Title: Rotary harrows
IPC: A01B33/14
Filed: 1972-08-24
Abstract: 1399276 Rotary harrows C VAN DER LELY NV 24 Aug 1972 [31 Aug 1971] 39575/ 72 Heading A1B A harrow (also described in Specifications 1399277 and 1399278) comprising a plurality of rotary soil working members 4 provided with tines 11 and arranged side-by-side, includes behind the soil working members 4 a ground-engaging roller 26A comprising helically-arranged tubes 29 spaced from a central support tube 27A and extending the whole length of the roller. The tubes 29 are freely rotatable in holes in support plates 28 and are longitudinally retained by quick-release pins 30. The roller 26A is carried by arms 25 pivoted to lugs 24 secured to the rear transverse beam 19 of support structure 23, and the level of the roller 26A may be adjusted by slackening bolts 33 and rotating screw-threaded crank 36. The soil working members 4 are carried by vertical shafts received in bearings on a transverse box-member 1, the vertical shafts carrying intermeshing pinions 5 and one such shaft being driven via change-speed gear box 54, 56 from the tractor power-takeoff. Each soil working member 4 comprises a rectilinear support 8 secured to the vertical shaft and carrying time-receiving holders 9. Each tine 15 is secured by a nut 14 and prevented from rotating by lug 12, has a crosssection which alters from square at the holder 9 to diamond at the tip, and is longitudinally grooved. The tines 15 may be leading instead of trailing (as shown) with respect to rotation direction B. Inclined stone-deflecting plates 16 are mounted on the tine holders 9, and a stonescreen 60 is carried by pivoted arms 59 resiliently urged against a stop. The harrow comprises a detachable triangular frame 47 carrying couplings 40 and 48 for connection to the power-lift links 41 and 49A of a tractor. The frame 47 is connected by rods 49 to brackets 50 fastened to the front transverse beam 19 of the support structure 23, and by a V-bar 51 to brackets 53 fastened to the rear transverse beam 19. The front and rear transverse beams 19 are detachably clamped in recesses in pairs of spaced plates 18 by clamps 20 retained by bolts 21. Seed drills or planting machines may be secured to the rear transverse beam 19. Tools may be stored between one pair of plates 18, a removable cover 68 being provided.
Patent GB-1394137-A (GB)
Title: Fluid flow control device
IPC: F16K31/58
Filed: 1972-08-25
Abstract: 1394137 Valves LABORATOIRES MEDICOPLAST 25 Aug 1972 [13 Sept 1971] 39713/72 Heading F2V A valve, e.g. for controlling the flow of blood, has a transparent elastic body 2 receiving as a press fit in limbs 2A, 2B the ends of flow tubes 1A, 1B, tube 1A being fitted with a ferrule 3 which, in the position shown, projects into blind limb 2C where it engages seat 8 to prevent flow from 1A to 1B, but which, upon distortion of the body to align limbs 2A, 2B can be made to project into limb 2B to abut a seat provided by the body, ferrule 12 or the end of tube 1B to allow flow. The body may alternatively be provided with more than two arms into which the free end of ferrule 3 is selectively received. The ferrule 3 may alternatively be received in the bore of limb 2A rather than in the tube 1A.
Patent GB-909370-A (GB)
Title: Improvements in or relating to circuit arrangements for stabilisation of the potential between the control electrodes of an amplifying device
IPC: H03F3/36
Filed: 1958-12-10
Abstract: 909,370. Valve and transistor amplifying circuits. PHILIPS ELECTRICAL INDUSTRIES Ltd. Dec. 10, 1958 [Dec. 12, 1957], No. 39843/58. Class 40 (6). In an amplifier in which the potential of one elec trode is stabilized against supply variations by means of a voltage or current dependent resistor, complete independence of supply variations is obtained by deriving a potential for a further electrode from a suitably chosen tap on a potentiometer across the supply. As applied to a valve amplifier only passing pulses above a predetermined amplitude, a fixed cut-off bias is applied to the cathode from a potentiometer comprising resistor Rr and voltage-dependent resistor V and a potential to compensate for any residual changes in cathode potential due to change in the supply voltage is applied to the grid by means of a resistive potentiometer R1, R2. The resistor R2 may also be of the voltagedependent type to assist compensation.
Patent GB-1045030-A (GB)
Title: Fluid valves
Inventor: LOWMAN FRANK BARNETT
IPC: F15B13/02
Filed: 1964-09-30
Abstract: 1,045,030. Valves. DOWTY HYDRAULIC UNITS Ltd. Sept. 14, 1965 [Sept. 30, 1964], No. 39868/64. Heading F2V. A self-centering spool-valve is movable to one side or the other to disconnect an input 19 from a drain 20 and connected it to one of two working ports 21 or 22 via a check valve 53 and the corresponding limb of a U-shaped passage 25 whilst the other working port is opened to an associated drain port 23 or 24. A combined anti-cavitation and relief valve is open to each working port 21, 22 and should a highpressure arise in one working port a suction caused by cavitation will appear in the other line which, due to a passage 43 is applied to both ends of a moving closure-member 33, the differential areas thereof causing the latter to unseat, thereby enabling fluid to be drawn from the adjacent drain port 23 or 24 into the working port. The relief valve 39, which seats on the closure member 33, opens when the pressure in the corresponding working port 21 or 22 exceeds a predetermined value; the loading spring 40 is assisted by the pressure from passage 43 acting in a chamber 37 in opposition to that acting on an inverted frustoconical closure-surface 41. When the relief valve is open, the flow to the drain port changes direction by more than 90 degrees to reduce chatter. The anti-cavitation closure member 33 may be disposed within the relief valve 39 and the spool may be replaced by a ported rectangular element.
Patent GB-1140641-A (GB)
Title: Circuit arrangement for obtaining video signals from a magnetic store device
IPC: H04N5/93
Filed: 1967-08-31
Abstract: 1,140,641. Television Signal recording. FERNSEH G.m.b.H. 31 Aug., 1967 [17 Sept., 1966], No. 39935/67. Heading H4F. The invention is concerned with video tape recorders of the kind comprising a plurality of replay heads 1, 2, 3, 4, Fig. 1 arranged on the periphery of a wheel, and moving in succession laterally across a moving magnetic tape storing, in parallel lateral paths, recordings of successive individual lines, and a switch arrangement 5 switching each head to an output 10 in succession, such that the outputs of the heads, comprising overlapping portions, are combined to produce a continuous video signal. Each switching operation in arrangement 5 produces an interference pulse I, Fig. 2, the switching taking place during the line blanking interval. To suppress the interference pulse, the video signal is delayed by means 14 for a duration t Fig. 2b, slightly longer than the pulse width t 1  and the delayed video signal normally used at output 15. The interference pulse causes pulse former 17 to produce a switching pulse which closes switch 16 and feeds the undelayed video signal to output 15, whereby a portion S, Fig. 2a of the undelayed signal is substituted for the interference pulse. A transistorized embodiment is described with reference to Fig. 3 (not shown).
Patent GB-1039589-A (GB)
Title: Universal joint
IPC: F16D3/72
Filed: 1964-10-01
Abstract: 1,039,589. Universal joints, flexible shafts. EATON YALE & TOWNE Inc. Oct. 1, 1964 [Oct. 23, 1963], No. 40043/64. Heading F2U. A flexible coupling for use in vehicle transmissions comprises driving and driven members 14, 17 connected by a spring assembly 9 including at least two coaxial spring units, one within the other, torsionally preloaded so that they maintain mutual radial contact during torque transmission. As shown, the members 14, 17 are centred by an axially slidable ball 35 and socket 33 joint and have annular recesses 14a, 18 into which the ends of the spring assembly are press-fitted. The spring assembly 9 comprises three frusto-conical spring units 20, 21, 22 with their smaller ends in the driven member 17 and is surrounded by a lubricant retaining rubber bellows 40. The spring unit 20 comprises five intercalated left-hand helical springs and is torsionally loaded to cause radial contraction to fit inside the unit 21, which has a free inside diameter slightly less than the outside diameter of the unit 20 and comprises five intercalated right-hand helical springs, and is torsionally loaded to cause radial expansion, so that unit 20 may be slidden into unit 21. The unit 22, comprising six intercalated lefthand helical springs, is torsionally loaded to cause radial expansion and is slidden over the unit 21. Release of the applied torques allows the springs to move into firm radial contact. If the coupling is to allow parallel axial misalignment of the end members, the ball-andsocket joint is omitted.
Patent GB-1510221-A (GB)
Title: Inflatable impression packers for wells
IPC: E21B47/09
Filed: 1975-09-30
Abstract: 1510221 Wells &c CHEVRON RESEARCH CO 30 Sept 1975 [30 Sept 1974] 40046/75 Heading E1F A self-contained wire line run inflatable packer 10 capable of carrying an impression element on its outer surface for making an impression of a downwell surface includes an elongated body including a tubular portion carrying an inflatable sleeve 20 around which an impression sleeve can be positioned, a source of high pressure fluid for inflating the sleeve 20 and a sequencing timer for causing a predetermined sequential inflation and deflation of the sleeve 20. As described the packer 10 is run into the well 14 on a wire line 12 and includes a jar 26, a pressure' temperature recorder 24, a control section 22 and an inflatable sleeve 20. The inflatable sleeve 20 is of the type described in Specification 1455955. The sleeve 20 is mounted on a tubular section of the body which is filled with a high pressure gas. The gas is fed to the sleeve 20 to inflate it via a pressure regulator (which also compensates for the hydrostatic pressure of the fluids in the well) and a control valve actuated by the sequencing timer. The control valve consists of a piston having a reduced diameter portion which is moved longitudinally inside a tubular housing, movement of the piston causing the sleeve 20 to be inflated after a first predetermined time interval (long enough to run the packer to the correct depth in the well) and then to deflate the sleeve 20 after a second time interval to permit the packer to be removed from the well. The sequencing timer which moves the valve piston consists of a free piston in a cylinder which is driven by the high pressure gas from the body (after passing through a second pressure regulator), the free piston driving a noncompressible liquid through an orifice. The liquid downstream of the orifice in turn drives a second piston connected by a rod to the valve piston. By adjusting the second pressure regulator and altering the size of the orifice the various time intervals can be controlled.
Patent GB-877466-A (GB)
Title: Improvements in or relating to hollow airscrews and other blades
Inventor: LORENZEN MAX
IPC: B64C11/24
Filed: 1958-12-12
Abstract: 877,466. Screw propellers ; blades for rotary-wing aircraft. ENTWICKLUNGSBAU PIRNA VEB. Dec. 12, 1958, No. 40087/58. Classes 4 and 114. [Also in Group XXII] A hollow blade for an airscrew or rotary wing aircraft is made from an H-section blank B, Fig. 1, worked from the solid as by forging and/or milling, the flanges being shaped to the desired blade-section and joined at their free ends as by welding or soldering 4, 5. Additional webs may be formed in the blank, which may be left solid at the blade-tip and at the leading or trailing edges. The edges may also be formed with interfitting tongues and slots, Fig. 6 (not shown), and may be reinforced to increase strength. The blank, filled with an elastic core, is closed to the desired section in a die. The blade may be filled with foam to suppress oscillations, and provided with devices (not specified) for increasing lift and de-icing.
Patent GB-1507241-A (GB)
Title: Rotary flexible record disc data storage apparatus
IPC: G11B17/32
Filed: 1976-09-28
Abstract: 1507241 Flexible-disc recording and playback INTERNATIONAL BUSINESS MACHINES CORP 28 Sept 1976 [4 Nov 1975 (2)] 40110/76 Heading G5R A selected peripheral gap between two adjacent flexible record discs 7 in a rotating stack 1 is widened (as at 18a, Fig. 5, to admit a transducer 8) by increased air pressure applied centrally by way of a peripherally-apertured hub 3-1 slidable within the permeable hollow core 6 of the stack. As shown, the increased pressure is applied via tubes 3-7 and 203-2, and further tubes 203-12 and 203-3 permit the pressure on either side of the selected gap to be reduced or increased to assist in opening or reclosing the gap. The pressure generally within the core 6 also may be increased but is normally maintained via tubes 2-10 and 14b at such a level as to induce bi-stable flight of the discs.
Patent GB-1463457-A (GB)
IPC: B62D55/084
Filed: 1975-05-01
Abstract: 1463457 Endless track vehicles CATERPILLAR TRACTOR CO 1 May 1975 [9 Sept 1974] 40242/76 Divided out of 1463456 Heading B7H The subject-matter of this Specification is identical with that described in Specification 1,463,456 but the claims are concerned with the T-shaped members connecting the track frames with the main frame.