baber/WOPTO huggingface dataset:
Patent GB-1165105-A (GB)
Title: Process for the manufacture of Amorphous Copolymers and Catalysts therefore
IPC: C08F210/00
Filed: 1968-04-03
Abstract: 1,165,105. Polymerization catalysts for olefins. FARBWERKE HOECHST A.G. 3 April, 1968 [5 April, 1967], No. 15984/68. Heading C3P. A polymerization catalyst comprises a solution in an aliphatic halohydrocarbon of (a) a trito penta-valent vanadium compound of concentration 0.001 to 0.1 millirnole per litre of halohydrocarbon, (b) an organoaluminium compound in a molar ratio of aluminium to vanadium in the range of from 20 to 200, and (c) at least 5 moles per mole of vanadium compound of a perchlorocrotonic acid compound of the formula C1 3 C-CC1 = CC1-COX, where X represents Cl, Br, or 0R<SP>1</SP>, and R<SP>1</SP> is an alkyl, cycloalkyl, aryl, or aralkyl radical which may be halogenated. The catalyst is used to make copolymers of ethylene, an alpha-olefin of the formula R-CH = CH 2 , where R represents a branched or straight-chain aliphatic hydrocarbon radical having less than 7 carbon atoms, and optionally a hydrocarbon containing two ethylenic bonds. The third component may be 1,4-cis-hexadiene, 1,4-trans-hexadiene, an alkenyl norbornene, an alkylidene-norbornene, dicyclopentadiene, butadiene-1,3, or isoprene. Suitable halohydrocarbons are methylene chloride, ethyl chloride, 1,2-dichloroethane, 1,2-dichloropropane, and 1,1,2-trifluorotrichloroethane. In the polymerization reaction a finely divided inert insoluble solid of particle size 0.005 to 100 microns may be present such as an inorganic chloride, fluoride, sulphate, nitrate, phosphate, carbonate, silicate, an aluminate, borate, oxide, or finely divided polymer such as polyethylene, polypropylene, poly-4-methylpentene-1, or polyacrylonitrile The terpolymers may be vulcanized with organic peroxides and/or sulphur. The polymers are recovered in the form of small balls or beads.
Patent GB-1092487-A (GB)
Title: Time variant inverse filter
IPC: H03H11/04
Filed: 1965-04-14
Abstract: 1,092,487. Geophysical prospecting. MOBIL OIL CORPORATION. April 14, 1965 [April 23, 1964], No. 16009/65. Heading H4D. [Also in Division G4] In a method for inverse-filtering a received seismic signal to produce a seismogram in which high frequency seismic signal components lost due to attenuation in the earth are restored, the received seismic signal, its first and preferably higher order derivatives and integrals with respect to time are summed in proportions which vary with time. In the embodiment of Fig. 1, the received seismic signal f(t) is played back from a magnetic tape record 1 and fed to an integrator 18 and differentiator 3. Second and third order derivatives and integrals are obtained respectively from differentiators 10, 14 and integrators 25, 29, and are added to f(t) and its first derivative and integral in a summing circuit 35, the relative proportions of the component signals fed to circuit 35 being determined by potentiometers 34, 37, 39, 41, 43, 45. In order to compensate for increased attenuation of the high frequency components of the seismic signal f(t) with time, the proportions of the derivative signals (containing high frequencies) fed to circuit 35 are increased with time, and the proportions of the integral signals (containing low frequencies) are decreased with time. The required increase and decrease are controlled by servo systems 50, 51 which vary the potentiometers 34-45 accordingly. The servo systems 50, 51 are themselves controlled by a function which varies with time in accordance with the time variation of the frequency content of the seismic signal f(t). The control function may be the function averaged over a time α and derived from circuits 46, 47, 48, may be determined by measuring the period of the seismic signal f(t) at intervals, or may be computed from a Fourier or power-spectrum analysis of selected portions of the seismic signal f(t). The composite signal from summing circuit 35 may be recorded on a magnetic tape unit 55, or the component signals fed to the circuit 35 may be recorded individually for further processing if required. In a modification, the seismic signal f(t) may be sampled and the differential and integral functions derived by digital computer, the control function also being in digital form.
Patent GB-108971-A (GB)
Title: Improvements in automatic Machine Tools for Nut and Bolt Facing and similar Purposes.
IPC: B23Q7/00
Filed: 1916-11-08
Abstract: 108,971. Talbot-Stead Tube Co., and Wilson, B. M. Nov. 8, 1916. Turning nuts and bolt heads. - An automatic lathe for facing nuts and bolt heads or similar work has two alined spindles a driven in opposite directions by chain or other pulleys c which can be put into or out of 'gear by clutches. Each spindle drives through reducing-gear a cam shaft g, the two being geared together. The tools are carried by slide-rests m, each carrying a facing and a chamfering tool, or one rest may carry the one tool and the other rest the other. To place a nut on a spindle, it is held by hand to the screwed end and automatically screwed on. To remove the nut, the driving-pulley c is put out of gear and the spindle put in gear with the other, which is rotating in the opposite direction. A plate having a hole to fit the nut is then brought into action by the lever k actuated by a cam, and the nut is thus unscrewed.
Patent GB-799201-A (GB)
Title: Improvements relating to electro-acoustic delay lines
Inventor: SCARROTT GORDON GEORGE
IPC: H03H9/02
Filed: 1955-06-06
Abstract: 799,201. Electromechanical delay lines. FERRANTI, Ltd. June 1, 1956 [June 6, 1955], No. 16104/55. Class 40 (8). An electromechanical delay line comprises a wire for propagating torsional stress waves associated with input and output transducers each including elongated magnetostrictive members extending tangentially from the wire. As shown in Fig. 2, the magnetostrictive members are two in number and consist of nickel strips 12 whose broader faces are welded to diametrically opposite points on the stress-wave propagating wire 11. The strips are associated with series or parallelconnected coils 13 whereby simultaneous longitudinal stress wave pulses may be set up in the strips. The effect is to produce a torsional stress wave pulse in the wire 11. The output transducer is similar to the input transducer except for the addition of polarizing magnets 19. Such magnets may also be associated with the input transducer. Alternatively, polarization may be produced by a direct current in the coils. In a modification (Fig. 5, not shown) the elements 12 extend from the wire in the same direction. In this case the elements must be polarized in such a manner that the stress waves are of opposite sense in the two elements and thus act in the same peripheral direction at the wire. Three magnetostrictive elements spaced at angular intervals of 120 degrees may be used (Fig. 6, not shown). The wire may be of a hard nickel-iron-titanium alloy and may be bent into a spiral. The Specification discusses the relative dimensions of wire and elements of given compositions necessary to achieve a good acoustic match.
Patent GB-586765-A (GB)
Title: Improvements in or relating to spring interior mattresses, divans, upholstered basesor mattress supports, loose seats and the like
IPC: A47C27/04
Filed: 1944-08-24
Abstract: 586,765. Mattress frames. BOYD, J. D. Aug. 24, 1944, No. 16125. [Class 52 (iv)] A frame for a spring interior mattress, upholstered seat, divan or cushion comprises upper and lower angle iron members 1, 2 held in superposed spaced relation by coil springs 3 the members being provided with alternating lugs 4, 5 of which adjacent pairs are joined by springs 6. The frame may be made from flat metal or plastic strips la, 2a with L-shaped lugs 4a, 5a secured to them and surrounds a spring assemblage as described in Specification 586,757 comprising coiled springs 15 with caps 16, 17, limiting tape 21 and enclosed in a calico cover 18. Buttons 22, 23 engage button-holes in the covering of the upholstered pads 7, 8. The outer fabric cover 11 has skirt portions 12, 13 eyeletted for laces at 14 and is fitted with handles as described in Specification 584,745. In the form modified as a divan the lower upholstered pad is dispensed with and the caps 17 are attached to wooden slats. The frame member 2 may be dispensed with and the springs 3 secured to the wood frame of the divan base. In a further modification, to make a cushion, eight frame members are connected by diagonal or zig-zag cords. The Provisional Specification describes a method of connecting the upholstered pads to the spring assemblage using a piece of stiff tape the edges of which are upturned to provide a channel, closable by draw tapes, to accommodate the buttons at both ends of the coil springs.
Patent GB-180909-A (GB)
Title: Improvements relating to combined lavatory basins and baths
IPC: A47K3/18
Filed: 1921-06-13
Abstract: 180,909. Maine, M. B. S. June 13, 1921. Baths fitted with lavatory basins.-Basins carried by frames of the kind described in Specification 163,493 are fitted with telescoping discharge pipes so that they may be raised and supported at a convenient height. The basin outlet tube 1 has a stud 6 working in a slot 5 in an outer tube 4 and adapted to nest as shown in a lateral extension of the slot. The tube 4 has a spline 12 adapted to slide in a recess in a tube 8 carried by the frame 10, and to rest on a shoulder 9<a> at the side of the recess when the basin is given a slight turn.
Patent GB-1177985-A (GB)
Title: Improvements in and Connected with Tyre Building Apparatus
IPC: B29D30/24
Filed: 1967-04-10
Abstract: 1,177,985. Tyre-building apparatus. OLYMPIC TYRE & RUBBER CO. PTY. Ltd. 10 April, 1967 [13 April, 1966], No. 16241/67. Heading B7C. A tyre-building and shaping drum comprises an inflatable bag 15 supported in either of two cylindrical diameters by segments 21 movable radially by bags 34 and arranged in coaxial rings, alternate segments of one ring having fingers 32 interengaging with fingers of appropriate opposite segments to provide a substantially cylindrical support of variable axial length, the intermediate segments of each ring having no fingers and extending axially for a shorter distance than said fingered segments so that cavities are formed in said surface into which portions of bag 15 may be drawn by vacuum within the bag. Support segments 38 at the axially outer edges of the bag are also movable radially by bags 39. Bead assemblies are applied against segments 38 by carriers (not shown) and the ply or plies is or are locked-up by a stitcher (not shown). A further ply is applied and locked-down. Thereafter, the carrier diameter is reduced to support the resultant carcass bead whilst the bag is inflated and the supports moved towards each other. Members (not shown) are positioned on each side of the toroidal carcass and breakers and treads assembled thereon prior to transfer to the carcass.
Patent GB-124002-A (GB)
Title: Improvements in Self-propelled Ploughs and other Agricultural Machines.
Inventor: ROBERTS THOMAS JOHN EDWIN
IPC: A01B3/66
Filed: 1917-11-07
Abstract: 124,002. Roberts, T. J. E., and Belgrove, H. G. Nov. 7, 1917. Winding and paying-out apparatus on portable engines and motor vehicles.-To enable a selfactuated agricultural machine such as a plough, seed-drill, disk harrow, or the like to be drawn over the ground at different rates with a constant speed of the operating motor, a winch drum of variable diameter driven from the motor is arranged on the machine and has passing round it a cable, rope, or chain anchored at its ends to the headlands of the field. In the form shown on Fig. 2, the motor shaft C operates through a reversing-gear clutch EF a shaft G which drives through a chain J a sprocket-wheel feathered on the shaft K carrying the winch. The shaft may be moved along the feather to vary the position of the winch relatively to the machine. The winch, Fig. 3, comprises a fixed member Q provided with a number of inclined radial projections Q' and a corresponding movable member O with projections Q'. The member 0 is moved by operating a nut P on the screwed end of a rod N extending into a recess in the shaft K and provided with a pin M projecting through slots L in the shaft and engaging the member O. The hauling rope is kept taut on the winch by guide rollers R, Fig. 5, driven from the shaft K by a belt T at a greater peripheral speed than that of the winch. One way clutches may be fitted on the rollers so that only the rear roller is rotated. Spring-pressed rollers hold the haulage rope tightly against the guide rollers. The guide rollers are offset slightly with regard to each other to prevent fraying of the haulage rope. Specifications 8555/15, and 123,697, [Class 6 (i), Cultivating implements &c.], are referred to.
Patent GB-362402-A (GB)
Title: New chemico-physical process for removing grease from rags and filaments already used
IPC: C10M175/00
Filed: 1930-05-27
Abstract: Used rags, cotton waste, &c. are freed from grease and so made fit for further use by the action of a "secondary dark discharge," preferably in a rotating drum in presence of absorbent such as fuller's earth, sawdust, or calcium carbonate, the electrodes being discs of 10 parts of lead to 1 part of antimony and spaced apart about 2 cm.  The rags are then freed from dust by suction and beating.  The absorbent is used until nearly saturated, and is then employed as a fertilizer for olive trees.ALSO:Used rags, cotton waste, &c. are freed from grease by the action of a "secondary dark discharge" in a rotating drum in presence of an absorbent such as fuller's earth, sawdust, or calcium carbonate.  The absorbent is used until nearly saturated, and is then employed as a fertilizer for olive trees.
Patent GB-739604-A (GB)
Title: Improvements in building construction
IPC: E03C1/322
Filed: 1953-06-15
Abstract: 739,604. Wall and window units. SCOTT, R. A. Sept. 14, 1954 [June 15, 1953], No. 16382/53. Class 20 (3). A structural building unit comprises a boxed or cased frame of metal or other suitable construction, which is adapted for being built into a wall and which is solid in its lower part while the upper part forms a window frame, the frame being fitted below the window with a casing containing pipes for connection to water supply pipes and to taps for a sink and with a waste pipe for connection to the outflow of the sink. As shown, vertical frame members 1, 2 and a top member 3 are secured to a metal plate 4 and a window frame 5, the lower part of the frame members 1, 2 being reinforced by triangular plates 6. Channels 7 are secured to the outer sides of members 1, 2 to leave a width of about half a brick at the rear in which holes are provided for pegs to secure the frame to the outer part 9 of a cavity wall against which the channels 7 are located. A bay 10 of one brick depth is formed in the wall and the frame rests in the bays as shown, the inner wall 12 being discontinued across the bay, and the bottom of the frame lying at a height of one brick above the floor level 11. Sills 13 and 16 are provided around the bottom of the frame and of the window frame and a capping 14 to protect the top frame member and discharge rain clear of the glazing, the rear edge of the capping extending under a lintel, above which the brickwork is continued. The channels 7 are used for material to make the joint weatherproof. Immediately below the window frame 5 on the inside, a channel cover 17 is secured, under which hot and cold water pipes 18 are placed and packed with glass wool or other insulating material. The pipes 18 are connected to taps 19 and through terminal connections 20 at one end to pipes to supply points, the connections 20 not to be used being plugged. To position the taps under the other half of the window, the channel cover 17 may be reversed. A waste pipe 21 is provided at the lower part of the frame and can be swivelled. about a central point to pass through either side of the frame and a trap 22 is attached to the upper end of the pipe 21 and may be swivelled for connection to a sink outlet either side, the sink being either mounted on brackets or in a cabinet as desired. The inner and outer surfaces of the frame and plate 4 may be covered by expanded metal secured by spot-welding to provide a key for plaster tiling or other decorative finish or the outside surfaces may be painted. For multistorey buildings, each unit may be the full height of a room 7 provided with means for fixing to units above and/or below.
Patent GB-529612-A (GB)
Title: Improvements in and relating to the production of amino acids
Filed: 1939-06-05
Abstract: 529,612. Amino acids. CORN PRODUCTS REFINING CO. June 5, 1939, Nos. 16420 and 16421. Convention dates, June 3, 1938 and Sept. 19, 1938. [Class 2 (iii)] Leucine is obtained from a solution resulting from the hydrolysis of maize gluten with an acid, such as hydrochloric acid, by adjusting the pH value of the solution to 0.9-1.0, and removing the precipitated leucine. The hydrolysate is first concentrated to about 25-26.5‹ BaumÚ, and the solution after adjustment of the pH value is cooled to about 70-80‹F. Humin substances are first removed by centrifuging the hydrolysate, and glutamic acid may also be removed, prior to the precipitation of the leucine, by adjusting the density and temperature of the solution as described in Specification 522,365. The filtrate, after removal of glutamic acid and leucine, is adjusted to a pH value of 2.4 to 3.4, to precipitate tyrosine. Examples are given.
Patent GB-481476-A (GB)
Title: Improvements in and relating to typographical slug casting machines
IPC: B41B11/18
Filed: 1937-06-14
Abstract: 481,476. Type-bar-making machines. MERGENTHALER LINOTYPE CO. June 14, 1937, No. 16459. Convention date, Sept. 3, 1936. [Class 100 (iii)] Assembling matrices.-In machines in which the first elevator is adapted to support matrices at either of two levels, means are provided for acting upon the upper edges of matrices supported at the higher level, which rest upon a single rail in the front jaw of the elevator, in order to safeguard them from turning or displacement. The elevator may be provided with friction means in the form of two thin flat downwardly-bowed springs 34, 35, secured to the front and rear jaws of the elevator respectively, and adapted to bear upon the top edges of both the upper ears of matrices supported at the higher level. Each spring is formed with an upwardly extending lug 38 near each end, which fits into a recess 39 in the elevator jaw, and is secured therein by a bolt 40, passing through an aperture in the lug, and screwing into a retaining-plate 44. At the receiving end of the elevator, the springs are bent upwards, so as not to impede the entrance of the matrices. When the supporting-rail 3 is retracted, the springs tend to depress the matrices into the lower position. The springs may be replaced by plates urged downwards by springs or by gravity, or stationary plates with soft or yielding matrix-engaging surfaces may be used.
Patent GB-1223521-A (GB)
Title: Separable blade agitator
IPC: B01F15/00
Filed: 1969-03-28
Abstract: 1,223,521. Mixing; agitators; joiner-making packing. SYBRON CORP. 28 March, 1969 [22 April, 1968], No. 16513/69. Heading B1C. [Also in Division F2] The glass-coated separable parts of an agitator are drawn together in fluid-tight sealing relationship without the use of torsion which might fracture the coating. As shown a cap-nut 16, sleeve 42, disc springs 72, piston 56 and vent 60 are assembled finger-tight on a draw bolt 50, and the agitator blades 14 placed over the sleeve, which is inserted into a bore 23 in the lower end 12 of the drive shaft and secured therein by engagement of the threads 24, 46. Springs 72 are then compressed by introducing hydraulic fluid under pressure with chamber 68, and the agitator parts drawn together again finger-tight by means of capnut 16. On release of the hydraulic pressure, the springs 72 place the bolt 50 under tension and the sealing surfaces 26, 30, 38 are brought into abutting engagement with an axial pressure of about 10,000 p.s.i. The drive is transmitted through a key 44. In a modification (see Fig. 3, not shown) the limb of the lower agitator blade is formed as a cap-nut. Leakage detection. A coloured liquid or a gas may be introduced under pressure into the spaces 92 behind the sealing surfaces by way of passage 88 and over the surface of sleeve 42, failure of the sealing surfaces being indicated by seapage. Leakage tests may be made during operation by introducing a gas down a bore 94 in the shaft and watching for bubbles.
Patent GB-995281-A (GB)
Title: Improvements in or relating to apparatus for teasing fibrous material
Inventor: FRASER HENRY KENNEDY
IPC: D01G11/00
Filed: 1962-05-01
Abstract: 995, 281. Preparing fibres for spinning. GIDDINGS & LEWIS-FRASER Ltd. March 14, 1963 [May 1, 1962 ], No. 16561/62. Heading D1N. Apparatus for teasing fibrous material, particularly hard fibres or hard waste, includes a shreading device or blade located between feed mechanism and a pinned cylinder. Induced air currents and centrifugal action are effective to discharge material from the pinned cylinder to an outlet duct. A pinned feed roller 13 defines a nip with the pinned cylinder 14 and a bladed member 15 extends into the nip to an extent that can be adjusted after release of a control screw 19. This screw acts directly on a wedge 18 which, with plates 16, 17, forms a rigid mounting for the bladed member 15. Fibrous material laid on the conveyer 10 passes between fluted feed rollers 12 to the roller and cylinder 13,14. So the cylinder 14 rotates at high speed, it draws the material against the bladed member 15 thus cutting long lengths of material to more manageable size. Worker and stripper rollers 20, 21 act upon the material before it leaves the cylinder 14 under the action of gravity and centrifugal force. From an outlet duct 23 the material passes between an open mesh cylindrical screen 24 and a roller 25 on to a conveyer belt 26 beneath the feed conveyer 10. The apparatus is enclosed in a casing 22 which includes an edge 27 that serves as a stripper to remove material held on the cylinder 14. Examples of roller speeds are given. Specification 995,282 is referred to.