baber/WOPTO huggingface dataset:
Patent GB-885187-A (GB)
Title: Improvements relating to electric resistance tube welding apparatus
IPC: B23K13/04
Filed: 1959-12-09
Abstract: 885,187. Welding by pressure. STEWARTS & LLOYDS Ltd. Dec. 9, 1959 [Feb. 13, 1959], No. 41866/59. Class 83 (4). In an electric resistance tube - welding machine having high frequency current conducting means 15 engaging the edges of the partly formed tubing upstream of the point of convergence of the edges, a pair of laterally aligned squeeze rolls 45, 45 at the point of convergence each engage the tube over an arc extending from a point diametrically opposite the converging edges to a point spaced from the edges and pressure roll means 50, 50a engage the tubing on each side of the converging edges over substantially all of the remainder of the tube surface except for a small arc at the weld zone. The edges of a partly roll formed tubing 100 are engaged by contact shoes 15 connected by leads 11 to a transformer 10 delivering 450 kc. per sec. current. A stand 18, Fig. 1, is vertically adjustable on a frame 12 by a handle 13, a slide 20 on the stand is longitudinally adjustable, a second slide 25 is pivoted on a shaft 24 mounted in ears 21 on the slide 20 and is angularly and laterally adjustable and carries the transformer 10. The welding throat 40 through which the tube passes comprises a housing 41 carrying a pair of horizontal squeeze rolls 45, each having a cylindrical lower part 46, a concave portion 47 extending to not more than 45 degrees above the horizontal axial plane of the tube and an upper part 48 bevelled radially inwardly at 45 degrees. Mounted above the squeeze rolls are vertical mating rolls 50, 50a having annular notches 52, 52a between them, the rolls engaging substantially the whole of the remainder of the tube surface and mounted on and insulated from a shaft 55 carried in arms 65 secured to a laterally adjustable carrier on a member 85 vertically adjustable by a screw 83, Fig. 4.
Patent GB-1070219-A (GB)
Title: Time indicating apparatus
IPC: H03M1/00
Filed: 1964-10-14
Abstract: 1,070,219. Selective signalling. DICTAPHONE CORPORATION. Oct. 14, 1964 [Oct. 14, 1963], No. 42011/64. Heading G4H. In a multi-channel magnetic tape data recording system a digital representation of the time of day is recorded at every second in one channel of the tape so that when the tape is played-back the digital time signals can be used to control an indicator thereby providing a visual indication of the time, second-by-second, when the data in the other channels was recorded. The digital representation of the time of day is obtained from three geneva-gear coupled drums having photo-electrically sensed patterns of holes in their cylindrical surfaces.
Patent GB-1183928-A (GB)
Title: Load-Dependent Compressed Air Brake for Rail Vehicles
IPC: B60T8/18
Filed: 1967-09-14
Abstract: 1,183,928. Railway braking systems. KNORR BREMSE G.m.b.H. 14 Sept., 1967 [16 Sept., 1966], No. 42049/67. Heading F2F. A compressed-air railway brake comprises a pressure transmitter actuated by vehicle loading, a no-load brake cylinder constantly connected thereto, and a load brake cylinder switched from the atmosphere to the output of the pressure transmitter when a predetermined vehicle loading is exceeded, the pressure transmitter having a supplementary piston loaded by the pressure in the load brake cylinder and acting in the same direction as the main piston. In the Figure the no-load brake cylinder is shown at 36 and the load brake cylinder at 48, and the system is under minimum loading. Compressed air from the train pipe 1 and brake control valve 3 passes via line 4 to depress piston 8 and rotate a balance beam 9 clockwise, at the same time operating a double valve 17/18 to connect the no-load cylinder 36 via a line 20 to the reservoir 2. As pressure builds up in line 19, this is communicated via line 21 to depress the main piston 12 of the pressure transmitter until the balance beam is returned to its original position. The pressure in line 19 and cylinder 36 is thus held at a suitable value for braking. When the vehicle is loaded, a corresponding pressure is produced in line 30 (by means not shown) and moves a piston 27 to the left against a spring 29. By means of linkage 26. 24, 23 this shifts the pivot 22 of the balance beam so that the equilibrium point of the beam is altered, and consequently the braking pressure in line 19. At a predetermined value of loading, the piston 27 uncovers a port 34 and admits air to a change-over valve 44 to disconnect the load brake cylinder 47 from the atmosphere and join it to line 19. Pressure from the latter is also applied via line 46 to a supplementary piston 16 in the pressure transmitter, which then presses down on piston 12 and restores the balance beam to its equilibrium position. The two braking cylinders 36, 48 now together exert a force slightly greater than the no-load cylinder 36 exerted before the other came into operation. With further increase in loading, the piston 27 bears on a second spring 32 and moves the balance beam pivot further to the left, increasing the total braking pressure.
Patent GB-1438722-A (GB)
Title: Production of polyethylenes
IPC: C08F4/00
Filed: 1973-09-06
Abstract: 1438722 Polyethylene preparation SNAMPROGETTI SpA 6 Sept 1973 [26 Sept 1972] 42069/73 Heading C3P Polyethylene having a narrow molecular weight distribution is obtained by polymerizing ethylene in the presence of a catalyst constituted by (a) a vanadium compound of formula where R<SP>1</SP> is hydrocarbyl, X is halogen, and y is 0, 1, 2 or 3, and (b) an organoaluminium compound of formula where R is hydrocarbyl, X is halogen and x is 0, 1 or 2, or such an organoaluminium compound complexed with a Lewis base. Hydrogen may be present. The products have Mw/Mn values up to 3À6 and I 21À6 /I 2À16  values up to 30. In examples polyethylene is obtained using V(NEt 2 ) 4 -EtAlCl 2  or Et 2 AlCl.
Patent GB-1276912-A (GB)
Title: Process for the preparation of silver halide emulsions
Inventor: HUCKSTADT HARALD
IPC: G03C1/04
Filed: 1969-08-25
Abstract: 1276912 Colloidal silica AGFA-GEVAERT AG 25 Aug 1969 [5 Sept 1968] 42164/69 Heading C1A [Also in Divisions C3 and G2] In Example XVIII a colloidal silicic acid sol containing 10% of polyacrylic acid is made by heating a 30% aqueous colloidal silicic acid sol of particle size 14-15 nm. and surface 195- 215 m.<SP>2</SP>/g. with sodium acrylate in the presence of potassium persulphate. The polymer prevents agglomeration of the silicic acid particles. Other polymers which can be formed are those of acrylonitrile, acrylamide and vinylsulphonic acid.
Patent GB-1370001-A (GB)
Title: Method and apparatus for blind riveting
IPC: B21J15/04
Filed: 1971-09-10
Abstract: 1370001 Blind riveting GRUMMAN AEROSPACE CORP 10 Sept 1971 [6 Nov 1970] 42262/71 Heading B3U  A blind rivet having a tubular body with a head is set by generating a stress wave, applying the stress wave to the head of the blind rivet, controlling the intensity and duration of the stress waves to temporarily render the tubular body plastic and exerting a pressure on a stem counter to end simultaneous with the application of the stress wave to the tubular body to draw a former in the tubular body. In operation a capacitor bank 48 is charged by an energy source 44 when a switch 46 is closed. After the capacitor bank is charged, switch 46 is opened and a switch 50 closed whereby a high amperage current pulse, of short duration, flows through a pancake coil 52. A high intensity magnetic field is set up around the coil 52 and this field intersects a driver 54, comprising a disc of aluminium or hardened copper, and induces a current therein. The induced current flowing through the driver sets up a high intensity magnetic field around the driver. The electromagnetic repulsion established by the interaction of the two magnetic fields generates a stress wave in driver 54 which is propagated through amplifier 38 and into the tubular body 56 of a blind rivet assembly 40 thus causing the body 56 to become temporarily plastic. Simultaneously with the electromagnetic repulsion between driver 54 and coil 52 a second electromagnetic repulsion takes place between a driver 86 and the coil 52. This repulsion is transmitted through rod 72 to a stem 58 and acts to draw a former 68, Fig. 2, into the tubular body 56. A blind head is formed since the former is pulled into the body when the latter is in a plastic state. Part of the diameter of the stem 58 is greater than the diameter of the annular opening 62 so that an interference fit occurs between stem 58 and the wall of opening 62 and between the body 56 and the walls of the rivet hole.
Patent GB-1525483-A (GB)
Title: Seal assembly for fluid energy translating device
IPC: F16J15/10
Filed: 1975-10-15
Abstract: 1525483 Seals for rotary positive displacement machines ABEX CORP 15 Oct 1975 [4 Nov 1974] 42298/75 Heading F1F [Also in Division F2] A seal assembly for sealing a piston 20 in a chamber in which it moves in response to differential pressures in volumes 21, 22 separated by the piston comprises a spacer 29 between support surfaces 27', 28', an O-ring seal 32 fitted about the spacer 29 and an elastic seal member 33 in which the spacer 29 and O-ring 32 are fitted to compress the O-ring seal between the support surfaces 27', 28', and between the spacer 29 and seal member 33. The support surfaces 27', 28' are provided on plates 27, 28 as shown and the assembly is received in a slot 24 of the piston member 20. The support surfaces may alternatively be provided by the sides of slot 24. A check-valve member 30 in a hole 31 of the spacer 29 seals an aperture 39 in plate 27 or an aperture 40 in plate 28 to allow pressure from the other aperture to enter the seal assembly and provide pressure balance on each side of spacer 29 and radially on the O-ring 32, grooves 38 and 41 allowing fluid access to aperture 39 to 40 respectively. The piston 20 is described as moving in carved chamber to control the displacement of a swash-plate pump by tilting its cylinder block. Slots 37 around the spacer receive some of the O-ring when it is compressed.
Patent GB-912866-A (GB)
Title: Hydraulic press for the injection moulding of synthetic plastic materials and the like
IPC: B29C45/67
Filed: 1960-12-09
Abstract: 912,866. Injection-moulding machines. TOS RAKOVNIK, NARODNI PODNIK. Dec. 9, 1960 [Dec. 9, 1959], No. 42622/60. Class 87(2). Apparatus for closing mould sections 16, 17  comprises a fixed transverse frame member 1 having telescopically associated with it a piston/ cylinder assembly 7, 6, to the piston 7 of which is attached a clamping plate 15 carrying movable mould section 16, and carrying a double acting piston/cylinder unit 5, 4 for moving assembly 7, 6, plate 15, and section 16 rapidly towards section 17 supported on fixed transverse .frame member 2, a piston/cylinder unit 10, 9 for locking cylinder 6 in position with head 11, and a screw 12 with a head 13 located in a recess in piston 7 to adjust the distance between plate 15 and frame member 2. With the mould sections closed and cylinder 6 locked by head 11, the final mould closing pressure is applied by forcing high pressure liquid between piston 7 and cylinder 6.
Patent GB-947108-A (GB)
Title: Improvements in methods of casting cylinder heads
IPC: F02F1/24
Filed: 1961-11-29
Abstract: 947,108. Moulding processes. GES. FUR LINDE'S EISMASCHINEN A.G. Nov. 29, 1961 [Nov. 29, 1960], No. 42710/61. Heading B3F. [Also in Division F1] In a method of casting a cylinder head, the inlet and exhaust valve ducts are formed by metal cores each having a curved axis which curves in three dimensions and is so shaped that it may be removed as a whole subsequent to the casting process. Each duct may be circular in cross-section throughout a major portion of its length and be defined by movement of a sphere 23, 23a, 23b, 28, 28a, 28b from the valve seat to the external surface in a helical path about a straight axis 24, 29, the spacing between the centre of the sphere and the straight axis, and the ratio of rotation and translation of the sphere being constant, and the size of the sphere continuously increasing. Alternatively, Fig. 6A, the duct is defined by movement of the cross-sectional planes along a helical path, wherein a pair of radial sectors extending from the axis of the duct in each cross-sectional plane increase continuously in magnitude with said movement, and the spacing between the centre of the cross-sectional planes and the straight axis, and the ratio of rotation and translation of the cross-section are constant.
Patent GB-1118535-A (GB)
Title: Door latch
IPC: E05B77/04
Filed: 1966-09-26
Abstract: 1,118,535. Latches. DR. Ing. H. C. F. PORSCHE KG. 26 Sept., 1966 [1 Oct., 1965], No. 42779/66. Heading E2A. A door latch for motor vehicles comprises a keeper 1 comprising a hollow body and latch means having a disc 5 which in the closed position of the latch is located internally of the keeper, the disc having an extension 6 and the keeper having a recess 15 and a stop 14 for retaining the extension within the keeper. The keeper comprises two metal stampings with a slot 11 for the latch shaft 4. A resilient insertion 12 having the recess 15, and the stop 14 with a rotatable, resilient sleeve and an inelastic stamping 13 with an inclined cam surface 16 are secured within the keeper. When the door is moved to closing position a nose 7 on the extension 6 abuts the stop and rotates the disc 5 so that the extension 6 enters the recess 15 in the insertion 12, further movement of the door causes the cam surface 16 to abut the disc and rotate it further so that the extension 6 is pressed within the recess 15. The stop 14 retains the extension in the recess.
Patent GB-998783-A (GB)
Title: Improvements in or relating to the removal of high temperature drosses from molten metal
Inventor: RICHARDS JOHN HARVEY
IPC: F27D3/15
Filed: 1962-11-16
Abstract: 998,783. Foundry ladles. IMPERIAL SMELTING CORPORATION (N.S.C.) Ltd. Nov. 1, 1963 [Nov. 16, 1962], No. 43388/62. Heading F4B. A ladle for molten metal is mounted on trunnions 8 so that it can be tilted and has a partition 4, with a passage 7 below it, dividing the interior of the ladle into a smaller part 5 in which molten metal is received, and a larger part 6 with a pouring spout 9. The partition 4 is parallel to a vertical plane through the tilting axis when the ladle is at rest, and the reception side of the partition 4 and the ladle walls are lined with refractory bricks. In operation, molten lead is poured into the smaller compartment 5 and flows into the larger compartment 6, the doors collecting in the compartment 5.
Patent GB-970102-A (GB)
Title: Load-handling pallets and like platforms
Inventor: BERNER ROLAND ALEXANDER
IPC: B65D71/04
Filed: 1962-11-19
Abstract: 970,102. Load-handling pallets. CERAMIC COMBUSTION & ENGINEERING CO. Nov. 19, 1962, No. 43590/62. Heading B8H. A pallet 10 for carrying bricks or like blocks itself consists of a plurality of the blocks 12, one layer 13 of which constitutes the platform and two or more rows 21 of which may be used as the bearers. The platform is held together by straps 14 and the bearers secured thereto by straps 20. Cushioning members, e.g. of corrugated cardboard, may protect the platform corners from damage by metal straps 14 and there is preferably a sheet 17 of like material sandwiched between the platform and bearers.
Patent GB-1215208-A (GB)
Title: Handling apparatus for handling round workpiece blanks which are to be shaped by means of a dishing press
IPC: B21J13/10
Filed: 1968-09-13
Abstract: 1,215,208. Planishing. SCHLEIFENBAUM & STEINMETZ OHG. 13 Sept., 1968 [15 Sept., 1967], No. 43604/68. Heading B3H. Handling apparatus for round sheet metal blanks which are to be formed by a planishing or dishing press comprises a frame longitudinally movable along guide rails and provided with at least two vertically disposed supporting rollers spaced at a distance corresponding to a fraction of the diameter of the blank and three support rollers the axles of which are aligned with a point located remote from the supporting rollers by the radius of the blank. The press 2 has a gate 1 through which travel the guide rails 3 and 4 for chassis 5 and 6. The chassis 6 are connected by a crosspiece 7 comprising two guides for slides 8 adjustable by a sprindle 9 having screw-threaded sections 10 and 11 of opposite threads engaging in nuts 12 on each slide. The spindle is rotated by a handle 13. The slides have vertical guides 14 for guide pieces 15 carrying the pivoted support rollers 21 the guide pieces being adjusted for height by a pressure cylinder 17. The slides also carry vertical supporting rollers 22. The chassis 6 are moved along the guides 4 by a motor 25 coupled to the chassis by endless chains or cables 27 via a driving shaft 24. The chassis 6 are coupled to the chassis 5 running in the guide rails 3 by threaded spindles 29 adjustable in nuts 30. The chassis 5 have pivot levers 31 connected by a crosspiece 32 provided with a support roller 33 driven by a motor 34. The levers 31 are operated by pressure cylinders 35. A longitudinal guide 36 on the crosspiece 32 has a guide roller 37 which engages the edge of the blank and which can be adjusted to any inclination. In operation the middle of the blank is first pressed by the planishing tool and the blank is raised by the support rollers 21 off the lower tool 52. The frame is then moved by the motor 25 so that a peripheral area of the blank is positioned between the pressing tools and the blank is lowered onto the lower tool. After each pressing the blank is rotated step by step by the roller 33 until the entire peripheral area has been shaped. The height of the support rollers determines the curvature of the blank. In a modification the supporting rollers 22 have a flange which acts as a height guide for the blank. In another modification (Fig. 4) the pivot levers 31 are actuated by levers 42 pivotally mounted on support members 40 movable along a track 43 by threaded spindles 45 driven by a drive means 44. The levers 42 are operated by pressure cylinders 39. With this arrangement for every movement of the frame the levers 31 are automatically re-aligned.
Patent GB-985878-A (GB)
Title: Carbon or graphite electrode joint
IPC: H05B7/14
Filed: 1963-11-05
Abstract: 985,878. Furnace electrode joints. GREAT LAKES CARBON CORPORATION. Nov. 5,  1963 [Nov. 5, 1962], No. 43612/63. Heading H5H. In a carbon or graphite furnace electrode having a threaded socket to receive a jointing nipple 3 or male thread of a second electrode, stress relieving means 5 are provided between the socket and the periphery of the electrode. The means may comprise an annular groove or a ring of holes and may be left empty or loosely filled with carbonaceous powder or granules. The electrode face may be relieved at 11a in addition. Typical dimensions and tests results are given.
Patent GB-1116174-A (GB)
Title: A device for checking the presence of parts and tools in automatic assembling machines
Inventor: ZOUHAR OTAKAR
IPC: H01K3/28
Filed: 1966-09-30
Abstract: For checking the presence of components and tools for carrying out a manufacturing process, especially one in which individual components are assembled in a mould and finally formed into a single unit by casting into e.g. glass, a machine is provided having a rotary table to receive the components and tools, sensing means rotatable with the table and movable along one or more axes at right angles to the rotary movement, positioning means for moving the sensing means into position to engage one component or tool and means for preventing the process from taking place unless such engagement occurs.  The machine shown comprises a rotor <PICT:1116174/C1/1> 1 having a guide 3 on which is slidably mounted a support 4 drawn towards the centre of the rotor by a spring 5, and carrying a sensing gauge 18.  The support 4 also carries a support 6 on which is a mould 7, the support being drawn downwards by a spring (not shown).  A probe 20 for checking the presence of a contact member 33 carrying a tube 22, a die 19 for shaping the mass in the mould and a carrier are mounted on the rotor. A number of lifting cams 10, 11, 12 and shifting cams 13, 14, 15 are provided for moving the carrier 6 at each stage of checking.  In operation, as the rotor moves round, the presence of the die 19 is checked by the sensing gauge which permits the support 4 to move towards the centre of the rotor if the die is absent and so put an end to operations on this set of parts.  If the die is present, the further movement of the rotor enables similar checking of the other parts, the set being displaced from the operative track at any time when a part or tool is missing.
Patent GB-1347155-A (GB)
Title: Method of producing a coarse-grained sodium perborate trihydrate
Inventor: DILLENBURG H
IPC: C01B15/12
Filed: 1971-09-21
Abstract: 1347155 Sodium perborate trihydrate KALICHEMIE AG 21 Sept 1971 [16 Oct 1970] 44023/71 Heading C1A Coarse grained sodium perborate trihydrate is continuously precipitated by reacting a solution of sodium metaborate with a solution of hydrogen peroxide, a molar ratio of NaBO 2  to H 2 O 2  of from 1 : 0À4 to 0À7 being maintained, at above 10‹ C. in the presence of sodium perborate trihydrate nucleating crystals and of a compound which reduces the solubility in water of sodium perborate. Mean grain diameters of at least 0À20 mm. may be produced. Stabilizers for the hydrogen peroxide, e.g. magnesium salts, may be added to the precipitation medium during crystallization. Compounds reducing the solubility of the sodium perborate may be sodium chloride or sodium sulphate. In Example 1 a suspension (400 1.) containing 240 g/l. trihydrate and 180 g/l. of dissolved NaCl was added to a vessel and heated to 40‹ C., and the NaBO 2  to H 2 O 2  molar ratio was then adjusted to 1 : 0 : 53 by addition of sodium metaborate liquor (217 g/l. NaBO 2 -400 1.). 65 l/h. H 2 O 2  solution (194 g/l.), 117 1/h. of NaBO 2  solution (217 g/l.) and 36 kg. of solid NaCl/hour were then added simultaneously and continuously to maintain the molar ratio at 1 : 0À53.
Patent GB-1462894-A (GB)
Title: Method for recovering sulphur monochloride
IPC: C01B17/45
Filed: 1974-10-14
Abstract: 1462894 Sulphur monochloride STAUFFER CHEMICAL CO 14 Oct 1974 [15 Oct 19731 44373/74 Heading C1A Sulphur monochloride is recovered from a liquid mixture containing the monochloride and CCl 4  by contacting the mixture with a substantially dry, inert (as defined) gas at a temperature between 75 and 150‹ C. to strip the CCl 4  from S 2 Cl 2 . The inert gas is defined as a gas inert to the S 2 Cl 2  at the process temperature and may be N 2  or air with moisture contents usually not more than 1000 p.p.m. The process may be operated continuously in a counter current contacting zone or it may be operated batchwise. Suitable plant for operating the process is shown in the Figure where CCl 4  is formed in zone 10 by reacting CS 2  with Cl 2 , the liquid reaction products leaving zone 10 through line 3 to the distillation column 20 where a crude CCl 4  product containing sulphur mono-and dichloride is separated from a crude S 2 Cl 2  product, the former being removed via line 7 and the latter product (containing 2-20% CCl 4 ) removed as an underflow via line 12 into the stripping column 30. The substantially dry, inert gas is passed counter current to the liquid S 2 Cl 2 -CCl 4  mixture in column 30, the S 2 Cl 2  product so obtained and usually containing less than 0À5% CCl 4  is removed through line 17.
Patent GB-1437232-A (GB)
Title: Lever valve control mechanism
IPC: G05G13/02
Filed: 1973-07-17
Abstract: 1437232 Valves; linkwork CATERPILLAR TRACTOR CO 17 July 1973 [17 Aug 1972] 44446/75 Divided out of 1437231 Headings F2V and F2K The description is the same as Specification 1,437,231 but the claims relate to the locking mechanism.