baber/WOPTO huggingface dataset:
Patent GB-1080508-A (GB)
Title: Process for producing a catalyst for oxidation of methanol to formaldehyde
IPC: B01J23/882
Filed: 1965-09-29
Abstract: Iron molybdate catalyst is ground, optionally after air or oven-drying, mixed with water to give a mass containing 37-39% wt. moisture then pelletized with 90 mins. of mixing.  The ground molybdate may have a max. particle size of 0.6 mm.  Waste molybdate from the pelletizing may be returned to the grinding step. The pellets may have a diameter and axial length of 3.5 mm. The molybdate may be made by mixing solutions of ammonium molybdate and ferric chloride, the ppt. being filtered and washed.  The filter cake has a MoO3/Fe2O3 wt. ratio of 5-6, and water content of 55-3"1/2"% wt. Drying of this ppt. may be at 80-107 DEG  C.  The pellets can be dried at 100 DEG  C. for 12 hr. to a water content of <5% wt.ALSO:A pelletised iron molybdate catalyst (see Division C1) is used for the oxidation of methanol in excess air to formaldehyde.  The formaldehyde produced has a low formic acid content.
Patent GB-1418582-A (GB)
Title: Cleaning material dispenser unit
IPC: B65B67/12
Filed: 1973-09-04
Abstract: 1418582 Web dispenser PAPIERWERKE WALDHOF - ASCHAFFENBURG AG 4 Sept 1973 [19 July 1973] 41452/73 Heading B8M [Also in Division B7] A cleaning material dispenser unit comprises a frame 11, at least one wheel or roller, e.g. wheels 13, at the lower end of the frame, a mounting 19 at the upper end of the frame adapted to releasably support a refuse bag 21 for used cleaning material, and an inverted generally U-shaped yoke 23 at the upper end of the frame 11. Limbs 24, 25 of the yoke are adapted to receive a roll of cleaning material 28 such as paper or cellulose wadding, and the cross-member of the yoke is accessible as a handle by which the unit may be tilted about the wheel or roller axis. As described the roll 28 is carried on a shaft 27, with spacers 31, 32, which is received in holders 26 on the yoke limbs. The limbs also slidably support a tear-off blade 29. The mounting 19 is annular and the bag 21 has its mouth folded or stretched thereover. A foot member 16 is secured to the lower part 12 of the frame 11. The wheel axle 14, foot member 16, mounting 19, and yoke 23 are all releasably secured to the frame by bolts, e.g. 15, 17, and 20.
Patent GB-1095063-A (GB)
Title: Improvements in or relating to frequency selective circuits
Inventor: HIPWELL WILLIAM ERNEST HENRY
IPC: H04N7/173
Filed: 1965-09-29
Abstract: 1,095,063. Detector circuits. MARCONI CO. Ltd. July 13, 1966 [Sept. 29, 1965]. No. 41457/65. Heading H3T. A frequency selective circuit adapted to respond selectively to short burst of a predetermined frequency comprises a series resonant circuit resonant at said frequency, means for deriving from the resonant circuit two components in quadrature, one substantially proportional to the square of the voltage at the junction points of the capacitative and inductive portions of the resonant circuit and the other substantially proportional to the current through it, and means for adding the said components to produce a resultant substantially proportional to the square of the amplitude of the envelope of the signal in the resonant circuit. As applied to a pay television system in which subscribers send short bursts at distinctive low frequencies to a central recording point, there is provided at this point a common input amplifier 2 of low output impedance, feeding in parallel a number of series-resonant selector circuits 3A, 4A &c. The tapping point on each resonant circuit feeds into an amplifier 10A &C of high input impedance, while the series current is fed into a corresponding amplifier 5A &c. of low input impedance. The outputs from each pair of amplifiers are squared in squaring circuits 11A, 12A which may comprise Hall effect devices, and added in additive circuits 13A: in order to obtain a resultant proportional to the amplitude of the envelope of the signals square-root circuits 14A &c. follow. Switches 8A &c. bring resistors 9A &c. into circuit to damp the tuned circuits following each signal burst and leave the arrangement ready to deal with the next subsequent burst.
Patent GB-1134739-A (GB)
Title: Catalyst system for the preparation of high cis 1,4 polybutadiene
Inventor: JENKINS DEREK KEITH
IPC: C08F136/06
Filed: 1966-09-19
Abstract: 1,134,739. Polymerization catalysts for butadiene. INTERNATIONAL SYNTHETIC RUBBER CO. Ltd. 12 Sept., 1967 [19 Sept., 1966], No. 41706/66. Heading C3P. A polymerization catalyst for butadiene comprises (a) an organic compound of nickel, (b) a Lewis acid or complex thereof, and (c) a boron hydride, e.g. diborane. Specific (a) compounds are nickel octoate, acetylacetonate, and di-isopropyl salicylate. Component (b) may be boron trifluoride etherate, or TiCl 4 . Polymerization is generally carried out in hexane, benzene, or toluene, and the boron hydrides added in an ether, e.g. tetrahydrofuran. Component (a) may be premixed with (b) in the presence of butadiene before addition of the boron hydride. The polybutadiene has a high cis-1,4-configuration.
Patent GB-849763-A (GB)
Title: Improvements in binocular telescope
IPC: G02B23/18
Filed: 1958-12-29
Abstract: 849,763. Binoculars. D. & D. CO. Inc. Dec. 29, 1958 [Jan. 7, 1958], No. 41868/58. Class 97(1) In a pair of binoculars each lens tube is engaged by a support extending transversely of the optical axes so that at least one lens tube is slidable on the support to provide interocular adjustment when the binoculars are in use and to allow the lens tubes to be brought into contact when the binoculars are not in use. The support also carries focusing means which extend into each lens tube and engage the movable lens therein in all operative positions of the lens tubes. The binoculars shown in Fig. 1 comprise lens tubes 10, 11 each being U-shaped in plan and carrying, in one limb of the U an objective 12 and, in the other limb of the U an eyepiece 13 which is movable for focusing purposes. The two tubes have guide rails secured thereto and these rails engage recesses in the limbs 19a and 19b of U-shaped extensions from either side of a tubular support 18 which extends orthogonally of the lens tube axes. Within the tube 18 is a shaft 25 which carries at each end thereof an eccentric 28 engaging a rectangular aperture in a further U-shaped member 30, having limbs 32, 33 which slidably engage the interior surfaces of the limbs 19a and 19b of the tube extensions. The limbs 32, 33 have inturned flanges 34 which engage grooves in the eyepiece lens mount 16. By this arrangement each eyepiece 16 is moved axially for focusing when the shaft 25 is rotated about its axis by means of a knob 26 projecting through a circumferential slot 27 in the tube 18. To provide for separate focusing of each eyepiece, the tube 18 may accommodate individually rotatable shafts connected by eccentrics 28 and members 30 to each eyepiece mount. In a further form, Fig. 12, each eyepiece mount 70 is connected to transversely extending grooves in the limbs of U-shaped extensions of a yoke 58 which is threaded on a rotatable screw 59 so that, by turning a thumb wheel 63, the yoke is moved in the direction of the optical axis and effects focusing movement of each eyepiece. Preferably, each objective is substantially rectangular in outline while each eyepiece 13 is circular. It is preferred that each objective consists of a front meniscus and a rear doublet and that the eyepiece is a plano-concave lens; optical data are given in the Specification for one example of such a lens combination. It is stated that means may be provided for interconnecting the lens tubes for interocular movement toward and away from each other and that shutters may be provided, these shutters being actuated by the closing movement of the lens tubes so as to slide over the lenses to protect them.
Patent GB-1448641-A (GB)
Title: Resilient bumper assembly
IPC: B60R19/48
Filed: 1974-09-27
Abstract: 1448641 Vehicle bumpers FORD MOTOR CO Ltd 27 Sept 1974 [1 Oct 1973] 42014/74 Heading B7J An energy absorbing bumper comprises a rigid backing member 13 adapted to be secured to a vehicle and a resiliently deformable shell 19 secured to the backing member by clamps 37, the shell having rectangular apertures in the front face and integral wall portions 49 extending rearwardly from the apertures in the front face and abutting loosely against the backing member. The backing member may have corresponding apertures 53 to permit the flow of air through the bumper to the vehicle engine. The internal space of the bumper is divided by vertical partitions 43 attached to the shell and apertured adjacent the backing member to permit the passage of air between compartments. Horizontal partitions 55 strengthen the corners of the bumper. The shell has a channel 21 receiving a trim strip 23.
Patent GB-1359227-A (GB)
Title: Reduction of molecular weight of rubber by shearing in solution
IPC: C08C2/00
Filed: 1971-09-09
Abstract: 1359227 Reducing M.W, of rubbers UNIROYAL Inc 9 Sept 1971 [11 Sept 1970] 42050/71 Headings C3E and C3P Natural and synthetic rubbers are treated to reduce their M.W. and Mooney viscosity, and to narrow the M.W. distribution, by passing a solution thereof through a homogenizer under a pressure of at least 4000 p.s.i. A particularly suitable type of homogenizer is described in detail, and examples are directed to treatment of ethylene / propylene / dicyclopentadiene, ethylene / propylene / 5 - ethylidene - 2 - norbornene, ethylene / propylene, nitrile, styrene/ butadiene and cis-polybutadiene rubbers, the solvents being n-hexane, chlorobenzene, methyl ethyl ketone and toluene.
Patent GB-1388809-A (GB)
Title: Photohardenable element
IPC: G03F7/16
Filed: 1973-09-10
Abstract: 1388809 Marginally hardened photo-resist elements E I DU PONT DE NEMOURS & CO 10 Sept 1973 [11 Sept 1972] 42501/73 Heading G2X A photo-resist element comprising a photoresist layer sandwiched between two supports, the photo-resist layer having at least two edges which are hardened. The specified photo-resist layer is a photo-polymerizable layer and is usually hardened by exposure of the two length-wise edges (if a roll of the element is used) or of all four edges (if a sheet of the element is used). The hardening of the edges prevents the layer being squeezed out under pressure.
Patent GB-1454440-A (GB)
Title: Process for the production of butane-1,4-diol from but-2-ene- 1,4-dioic acid
IPC: C07C29/17
Filed: 1974-10-03
Abstract: 1454440 Butane-1,4-diol UCB 2 Oct 1975 [3 Oct 1974] 42920/74 Heading C2C Butane 1,4-diol is prepared by esterifying but-2-ene-1,4-dioic acid by heating to boiling with a (C 1 -C 6 ) monohydroxy aliphatic alkanol, in the absence of an esterification catalyst, and converting the dialkyl but-2-ene-1,4-dioate thus obtained into butane 1,4-diol and the said alkanol by hydrogenolysis in the presence of a copper chromite catalyst. The starting material is suitably maleic anhydride, maleic acid, fumaric acid or a mixture thereof.
Patent GB-1279278-A (GB)
Title: Shift mechanism for a type-carrier device on power-driven typewriters and like business machines
IPC: B41J25/08
Filed: 1969-08-28
Abstract: 1279278 Toothed gearing OLYMPIA WERKE AG 28 Aug 1969 42951/69 Heading F2Q [Also in Division B6] Case-shift clutch mechanism.-Depression of a shift key 2 in a typewriter results in 180 degrees rotation of a clutch 14 which drives a cam 27 for operating the shift mechanism in a manner not illustrated. If the typewriter is in the middle of a print cycle, the case-shift signal is stored. The clutch includes a gear wheel 24 with two interrupted portions 25 and 26, which meshes with a continuously rotating drive gear 64. A jump tooth member 16 has two toothed portions 20, 21, and is mounted for rotation relative to the gear wheel 24, so that the two toothed portions can be moved to fill the spaces created by the interrupted portions 25, 26. When the shift-key 2 is depressed, the arm 10 of a locking lever 9 pivoted at 8 is moved out of engagement with a dog 15 on the jump tooth member 16, thereby allowing the member 16 to be rotated by springs 40, 41. This causes 180 degrees rotation of gear wheel 24, whereupon the second arm 11 of the locking lever 9 engages the dog 15. (A case-shift has now taken place.) Release of the shift key 2 causes the locking lever 9 to release the clutch for a further 180 degrees rotation. Inadvertent movement of the clutch in its two 180 degrees positions is prevented by a spring biased roller lever 31 engaging a cam 29 positively connected to the clutch gear-wheel 24. Locking arrangements.-The shift mechanism is locked during a print cycle by a further locking lever 46 preventing operation of the clutch. During a print cycle, a draw rod 74 pivots an intermediate lever 42, which is connected to lever 46 via a draw wire 44. Lever 46 does however allow the jump tooth portion 16 to move a short distance (a, Fig. 3), so that the dog 15 moves beyond the arm 10 of the locking lever 9. As soon as locking lever 46 is released, the clutch will commence to rotate and operate the shift mechanism. In this manner the shift function is stored until the print cycle is finished. A print cycle is prevented during a shift cycle by the intermediate lever 42 being locked by an additional locking lever 18 controlled by a cam 19 rotated by the clutch 14. The shift key 2 is released from its depressed position during the print cycle immediately following the case-shift by the impression mechanism pivoting the key locking lever 49 via a draw rod 52 and a bell-crank 53. The shift key 2 can also be released by depressing it further beyond a pressure point created by a flange 54 of the key lever 1 engaging a spring biased lever 57. A pin 58 on the key-locking lever 49 is engaged by the flange 54 to release the key after the pressure point has been exceeded. The pressure point lever 57 can be actuated by any key and acts on the shift-key lever via a draw rod 68 and a lever 70.
Patent GB-1075007-A (GB)
Title: Products produced by chemical metallization
IPC: H05K3/18
Filed: 1965-10-13
Abstract: A non-conductive surface on a metal base is coated with a catalytic material in selected sites by e.g. screen printing, and an electroless deposition of e.g. copper formed on the sites.  In an example the electroless bath comprises (moles/litre) 0.02 copper sulphate, 0.05 NaOH, 0.0002 NaCN, 0.032 trisodium N-hydroxy-ethyl-ethylenediamine-triacetate, 0.03 formaldehyde. The surface coated may be anodized aluminium or plastic coated aluminium or steel, and it may be perforated.  The catalytic ink comprises cuprous oxide in a resin base, which is cured to bond it to the base.
Patent GB-1473207-A (GB)
Title: Xerographic belt
IPC: G03G5/10
Filed: 1974-10-07
Abstract: 1473207 Electro-photographic belts XEROX CORP 7 Oct 1974 [26 Dec 1973] 43398/74 Heading G2C An endless electro-photographic belt comprises a ductile metal layer, a photo-conductive layer and an adhesive thermoplastic polyester along at least one edge of the photo-conductive layer but which does not entirely cover the photo-conductive layer. Specified metals are Ni, Cu, Al, Fe, brass and steel whereas Se/As alloy doped with chlorine is the specified photo-conductor. The polyester is applied so that the layer is 100 mils wide and 23 mils thick on the edge of the photo-conductive layer and 50 mils wide and 15 mils thick on the edge of the metal layer and is preferably applied to both edges of the belt.
Patent GB-1435578-A (GB)
Title: Engine housings
IPC: F02B55/10
Filed: 1973-09-15
Abstract: 1435578 Rotary positive-displacement fluidmachines ROLLS-ROYCE MOTORS Ltd 4 Sept 1974 [15 Sept 1973] 43413/73 Heading F1F An engine housing, e.g. for a rotary piston I.C. engine, comprises inner and outer walls 1, 2 separated by coolant channels and joined by non-radial webs 7, 8, e.g. disposed at 28¢ degrees to the radial, so as to form triangular section channels. The non-radial webs may be located in the combustion zone only, with radial webs being used in the rest of the housing. The housing wall thickness may decrease from the axial ends of the  housing towards the centre. The housing may be of cast iron or aluminium.
Patent GB-1358572-A (GB)
Title: Planar gaseous display panels having an array of segmented display  positions
Inventor: KUPSKY G A
IPC: H01J17/49
Filed: 1971-07-27
Abstract: 1358572 Gas discharge display panels BURROUGHS CORP 27 July 1971 [6 Aug 1970 9 Nov 1970 14 Dec 1970 15 March 1971 16 March 1971] 43505/73 Divided out of 1358571 Heading H1D The subject-matter of the Specification is the same as that of the parent Specification but the claims are directed to a multiple position display device comprising groups of cathode segments formed on an insulating layer and connected through apertures in the layer to conductors formed on an underlying substrate, and an anode associated with each group of cathode segments, in which the main feature is that each anode is spaced 20 to 25 mils from its associated group of cathode segments and is spaced 30 to 40 mils from an adjacent group or groups of segments to prevent spurious discharge.
Patent GB-1256200-A (GB)
Title: Trachel tube seal
Inventor: MILLER DON ROBERT
IPC: A61M16/04
Filed: 1970-09-11
Abstract: 1,256,200. Tracheal tube assemblies. DOW CORNING CORP. 11 Sept., 1970 [15 Dec., 1969], No. 43560/70. Headings A5R and AST. A tracheal tube assembly comprises an elongate, curved tube 12 having a flange 11 towards its proximal end, which end portion is formed as a male connector for a hose 23, and at least one, preferably circular, disc-like flange 18, 19, 21 towards its distal end 13. The flanges are preferably of silicone rubber being resilient and are of a thickness such that, in use, they may bend against the walls of the trachea to occlude the opening between the trachea 22 and the tube 12 when inserted as shown. The assembly may also be made in the form of an endo-tracheal tube.
Patent GB-1277246-A (GB)
Title: Controlled rectifier having auxiliary cathode
IPC: H01L29/00
Filed: 1969-09-03
Abstract: 1277246 Controlled rectifiers INTERNATIONAL RECTIFIER CORP 3 Sept 1969 [23 Sept 1968 (2) 16 July 1969] 43594/69 Heading H1K The controlled rectifier shown has a cathode emitter region bounded by junction 43 and an auxiliary emitter region bounded by junction 67. The floating contact 64 on the auxiliary emitter shorts that side of the junction 67 which lies adjacent the cathode contact 60 (to form an auxiliary gate) but does not short that part of the junction adjacent the gate contact 48. In one variant (Fig. 4, not shown) that edge of the auxiliary emitter region adjacent the cathode emitter is straight, as is the overlying contact (47), and the adjacent edge of the cathode contact (46) is also straight and in this area does not short the cathode emitter junction. In another variant (Fig. 7, not shown) the adjacent edges of the cathode emitter and auxiliary emitter are again straight and parallel, the auxiliary contact (81) extends uniformly over the cathode side of the auxiliary junction, and the cathode contact (80) is toothed so that adjacent the auxiliary emitter it extends only over limited areas of the cathode emitter junction.
Patent GB-1398292-A (GB)
Title: Beater mills
IPC: B02C13/282
Filed: 1972-09-22
Abstract: 1398292 Beater mills BABCOCK & WILCOX Ltd 22 Sept 1972 [22 Sept 1971] 43925/72 Heading B2A The lining of a beater mill comprises rotor plates 8, 9 secured to the casing by means projecting from the casing wall 7, each rotor plate may include a convex surface extending from an upstream end (relative to the direction of rotation of the beater) and merging at downstream end with a concave surface which is parallel to the path of a beater tip and which extends to the downstream end of the rotor plate. As described, the rotor plates are arranged in pairs with one plate 8 Fig. 2 presenting the convex surface 23 and being secured by a strip 12 and a projection 10 and the second plate 9 being secured by a strip 12 and a projection 10 and having a concave surface 25 merging with a concave surface of the plate 8. The mill itself includes a feed inlet 3, a product outlet 4 and a tramp iron chamber 5 normally closed by a door 6. In a modification the convex surface may extend along the whole of plate 8.
Patent GB-916500-A (GB)
Title: Improvements in the production of spars or masts from light alloys
IPC: B21C37/15
Filed: 1959-12-28
Abstract: 916,500. Making masts and spars. CHARLESWORTH, P. A. March 24, 1961 [Dec. 28, 1959], No. 44005/59. Class 83 (2). [Also in Group XXXIII] A mast or spar comprises a strip or sheet of a light alloy formed by rolling, pulling through a die, or utilizing a " press brake," into a U of horseshoe-like shape in cross-section, the longitudinal edges being joined to an extrusion which embodies the mast track. The horseshoeshaped member may be formed in two halfsections, the longitudinal edges of which are by two extrusions each embodying a mast track. The mast or spar may be of tapered section. Two lengths may be joined by inserting concentric rings of varying length and/or thickness or a sleeve of varying thickness.
Patent GB-1076394-A (GB)
Title: Hooking and unhooking equipment for a ski-lift
IPC: B61B12/12
Filed: 1964-10-29
Abstract: 1,076,394. Ropeway conveyers. D. M. SCHIPPERS. Oct. 29, 1964 [Oct. 30, 1963], No. 44115/64. Heading B7L. [Also in Division F2] A hooking and unhooking arrangement for a ski-lift comprises a personal hook 12, Fig. 1, and an unhooking device 110, Fig. 5. The hook 12 is formed from two discs 14a and 14b secured to a plate 13, each defining with the plate a V-groove to trap a lift traction rope. The plate 13 has an arm 16 to which a flexible cord is secured which can be looped around a skistick. The unhooking device is associated with a chassis of the lift traction motor and comprises a conical spring 110 mounted in a collar 109 through which the traction rope is threaded. Collar 109 is secured to an arm 105 which is pivoted to the chassis at 106. When the hook reaches the device 110, the spring enters the V-groove and the arm pivots to release the hook.
Patent GB-1097550-A (GB)
Title: Height gauge construction
IPC: G01B5/06
Filed: 1965-10-21
Abstract: 1,097,550. A height gauge. G. L. GERSHMAN. Oct. 21, 1965, No.44606/65. Heading G1M. A height gauge includes a standard 12, a block 14 slidable along the standard, a second block 16 rotatable with respect to the first block, an arm 18 slidable in the second block and a measuring device 20 Fig. 1 (not shown) on the arm. Means are provided for clamping the first block to the standard, for clamping the second block to the first block and for clamping the arm to the second block. A friction brake is provided between the two blocks to prevent accidental rotation when the clamping is released. The brake comprises an element 54 on one block movable relative to its block but being non-rotatable and a friction disc 60 mounted on the other block and engaged by said element 54. Means 49 are provided to apply pressure to said element to cause it to bear against the friction disc which latter engages a surface of block 16. The Specification also describes a construction for mounting a measuring instrument on the arm 18. The construction comprises an elongated bar 74 mounted in a recess 70 in the arm, means 72 pivoting said bar adjacent the end of the arm, with a relatively short portion extending from the end of the arm for supporting the measuring instrument, and means 76 for pivotally moving the bar. The standard 12 and arm 18 have applied thereto a friction device in the form of a plug 36 with springs 38, 40 held in position by screws 42, 44 to prevent sudden movement of the arm or blocks when they are unclamped.