baber/WOPTO huggingface dataset:
Patent GB-1187466-A (GB)
Title: Improvements in or relating to the Polymerisation of Olefins
IPC: C08F10/00
Filed: 1967-10-20
Abstract: 1,187,466. Polymerizing alpha - olefins. VEBA-CHEMIE A.G. 20 Oct., 1967 [20 Oct., 1966], No. 47918/67. Heading C3P. Polymers of one or more alpha-olefins having 2 to 6 carbon atoms are made by polymerizing the alpha-olefin in the presence of a catalyst consisting of the reaction product of an organometallic compound of Groups I to III of the Mendeleeff Periodic Table and a mixture of at least two compounds of the IVth to VIIIth groups, wherein the mixture contains a vanadium compound together with an orthotitanium or orthozirconium tetra-ester, or a mixture of an orthotitanium and orthozirconium tetraester, or a mixture of halogen containing esters of tetravalent titanium and zirconium, and after formation the catalyst is heated to a temperature of from 30‹ to 300‹ C. If desired, the catalyst may be filtered, purified, and a compound of Groups I to III added prior to use as a catalyst. If desired, the compounds of Groups IV to VIII may be heated to 30‹ to 300‹ C. Exemplified catalysts are titanium tetra-npropylester, and vanadium oxychloride optionally refluxed at 100-120‹ C. for 2 hours, plus diethylaluminium chloride, or di-isobutyl aluminium fluoride. The polymerization may be carried out in a hydrocarbon or halogenated hydrocarbon diluent, and hydrogen may be present. Exemplified monomers are ethylene, propylene, a mixture of ethylene and propylene, and 4-methyl-1-pentane.
Patent GB-1530142-A (GB)
Title: Starters for discharge lamps
IPC: H05B41/24
Filed: 1975-11-21
Abstract: 1530142 Starting high pressure discharge lamps GENERAL ELECTRIC CO 21 Nov 1975 48003/75 Heading H2H A starter for a high pressure discharge lamp comprises a source of undamped, high frequency ionizing voltage and a transformer T2 for coupling the voltage to the lamp. The lamp may be a sodium or mercury lamp and the starter enables rapid restarting of a hot lamp. The lamp is connected to a conventional ballast circuit and the frequency of the starting pulses supplied by the high frequency source is in the range 17 kHz to 60 kHz. The high frequency source may supply sine or square waves having a half period which is less than the de-ionization time constant of the lamp so that the level of ionization increases with each half cycle.
Patent GB-1398933-A (GB)
Title: Magnetic recording apparatus
IPC: G01R19/165
Filed: 1972-10-18
Abstract: 1398933 Measuring signal amplitude TELEVISION RESEARCH Ltd 18 Oct 1973 [18 Oct 1972] 48072/72 Heading G1U In a signal level monitor in a magnetic recorder, a diode D1 is biased to a predetermined level by potentiometer RV5. The positive peaks of signals from input terminal 2 exceeding this level are passed via capacitor C2 to a pulse amplifier VT1, VT2. The amplifier output (at the common  collectors) drives a lamp LP 1 which illuminates a photo-resistor PCC1 in an attenuator. The recording signal is applied across this potentiometer whose output thus provides compression of the signal under high input level conditions. The amplifier output also drives via capacitor C5 a switch VT3, VT4 across which is applied an A.C. supply in series with a lamp LP2 which is thus illuminated when the predetermined level is exceeded.
Patent GB-1501330-A (GB)
Title: Internal combustion engine crosshead piston assemblies
IPC: F16J1/02
Filed: 1976-11-19
Abstract: 1501330 Pistons GENERAL MOTORS CORP 19 Nov 1976 [8 Dec 1975] 48327/76 Heading F2T An internal combustion engine piston comprises a head member 18; a cylindrical inner skirt member 57 with an outer annular recess 10; a piston pin 14 for pivotally connecting the head member 18 and the inner skirt member 57 to a piston-rod 12 while permitting small angular movement between these members; a cylindrical outer skirt member 106 arranged in the recess 10; a cylindrical elastomeric member 108 arranged in the recess 10 between the skirt members 57, 106, being bonded thereto, and having longitudinal chambers 114 which change in volume with changing radial loads; and flow restricting passages 116, 118 in the inner skirt member 57 connecting each chamber 114 to the interior of the inner skirt member 52; said outer skirt member 106 extending radially outwardly of both the head member 18 and the inner skirt member 57. It is said that piston slap is reduced as a result of the low radial spring rate of the skirt, combined with viscous damping, while overheating is avoided by circulation of oil through the chambers in the elastomeric member.
Patent GB-1526130-A (GB)
Title: Ultrasonic camera
IPC: A61B8/08
Filed: 1976-11-19
Abstract: 1526130 Ultrasonic camera COMMISSARIAT A L'ENERGIE ATOMIQUE 19 Nov 1976 [24 Nov 1975] 48386/76 Heading G1G In an ultrasonic camera, emitter transducers are arranged in two rows on each side of a row of receiver  transducers, the three rows lying on a part-cylindrical surface, and a group of emitters, e.g. 40, 42, 44, 46, is excited simultaneously, the group progressing along the rows for scanning, and after a delay those receivers e.g. 50, 53, 54, corresponding to Fresnel zones are enabled. Each emitter comprises a plurality of strips 51. The assembly may be rotationally or translationally oscillated to effect area scanning. A, B, C and time-motion scans are all possible. For use with a human patient a bellows (34), bag (32) and wound absorbing sheet (35) may be provided, Fig. 1 (not shown).
Patent GB-1427159-A (GB)
Title: Vulcanizable polyacrylate elastomer
IPC: C08F220/00
Filed: 1973-10-17
Abstract: 1427159 Vulcanizable polyacrylate elastomers AMERICAN CYANAMID CO 17 Oct 1973 [29 Nov 1972] 48459/73 Heading C3P A vulcanizable polyacrylate elastomer which is a copolymer comprising at least 50% by weight of an acrylic acid ester selected from alkyl acrylates wherein the alkyl group contains from 1 to 8 carbon atoms, alkoxyethyl acrylates wherein the alkoxy group contains 1 or 2 carbon atoms, or alkylthioethyl acrylates wherein the alkyl group contains 1 or 2 carbon atoms, and from 1 to 10% by weight of a 5- alkylidene-2-norbornene have the formula wherein R and R<SP>1</SP> are the same or different a each is hydrogen or alkyl containing from 1 to 4 carbon atoms may be prepared by copolymerizing the comonomers by an emulsion or suspension technique in the presence of a free radical catalyst. The elastomers may be vulcanized using sulphur or a sulphur-generating compound. In the examples ethyl acrylate, 5-ethylidene-2-norbornene, butyl acrylate and ethoxyethyl acrylate are copolymerized in a suspension system containing water, tricalcium phosphate, bentonite clay, dodecyl mercaptan and azobisisobutyronitrile.
Patent GB-1324876-A (GB)
Title: Electromagnetic powder couplings
IPC: F16D37/02
Filed: 1970-10-13
Abstract: 1324876 Electromagnetic powder couplings CREUSOT-LOIRE 13 Oct 1970 [17 Oct 1969] 48542/70 Heading H2A An electromagnetic powder coupling comprises a gap 5 between an inner rotor 1 and an outer rotor, having an excitation rod 19 supplied externally via rotating contacts, the coil having rectangular cross-section and being located in an annular housing in the outer rotor by contact between the housing walls and the outer cylindrical and two plane faces 20-22 of the coil, a free space 24 remaining between the coil inner cylindrical face 23 and the corresponding housing wall and extending in a joining plane between two polepiece halves 17, 18 which constitute the outer rotor which halves at the immediate vicinity of the gap are connected by a small thickness magnetic shunt 9, 10, which closes the free space 24; and the coil face 23 has a diameter sufficiently greater than that of the gap 5 to allow the passage therebetween of tiebolts 26 parallel to the coupling axis and directly connecting lateral coupling cheeks 11, 12 by passing through the outer rotor. This reduces the transference of heat from the gap 5 to the coil 19, and avoids tapping the polepiece halves.
Patent GB-1263361-A (GB)
Title: Improvements in and relating to foldable panels
IPC: E06B3/48
Filed: 1969-10-03
Abstract: 1,263,361. Foldable doors; pinless hinges. LOUVERDRAPE Inc. 3 Oct., 1969 [17 Oct., 1968], No. 48648/69. Headings E1J and E2F. A cap for a folding door panel particularly for the type of folding door made from a plurality of hinged vertical panels in which the hinge parts allow vertical relative movement between the panels, but restricting relative horizontal movement comprises a part 8 having a vertical surface, projections 22, 23 for connecting the cap to the panel 4 by projecting through apertures 24, 25 in the panel 4 and the panel is prevented from withdrawing off the projections by a second part having a surface parallel to that which carries the projections; a lower horizontal finger 21 extending from one end of the first part and positioned so that it rests on an upper part of an adjacent vertical panel; and an upper horizontal finger 20 extending from the other end of the first part and positioned so that it is vertically supported by the lower finger 21 of an adjacent cap. The panel may be supported by a nylon slide formed integrally with the P.V.C. cap or the panel may be supported directly from a nylon slide 2 having a part 27 with a hook 28, which when the part 27 is inserted through a bore 26 in the cap, passes through a hole 29 in the panel to support this latter. The hinges may be pinless as described in Specification 1,192,894.
Patent GB-1245271-A (GB)
Title: Dye-sensitized photographic media and process
Inventor: BARTLETT RICHARD FROST
IPC: G03C1/705
Filed: 1968-10-16
Abstract: 1,245,271. Photoconductive member. ITEK CORP. 16 Oct., 1968, No. 49068/68. Heading H1K. [Also in Division G2] A photoconductive recording member comprises a photoconductor, a sensitizing dye, a dyedesensitizing accelerator and a support. In the embodiments, TiO 2  with or without ZnO in an acrylate resin is coated on paper, sensitized by a specific carbocyanine dye and treated with carbon tetrabromide as the desensitizing accelerator. Many other photoconductors and accelerators are specified, the accelerators being polyhalogenated compounds. The photoconductors may be incorporated in a paper-making slurry, or a plastic sheet, coated on glass or dispersed in sodium silicate or polyvinyl alcohol and coated on a rigid or flexible insulating or conductive substrate.
Patent GB-1066040-A (GB)
Title: Improvements in or relating to the extraction of kernels from nuts
IPC: A23N5/00
Filed: 1963-12-12
Abstract: 1,066,040. Shelling nuts. A. S. BRACK and R. H. S. ROBERTSON. Dec. 12, 1963, No. 49078/63. Heading A2Q. In a process and apparatus for extracting kernels from nuts with hard shells, such as cohune and babassu nuts, and separating the kernels from the broken shells, the nuts are fed, from a hopper 2, Figs. 1 and 2, through a cracking device 1, from which a mixture of kernels and broken shells is discharged through holes in an end-plate 3 on to a vibrating screen 4, which removes some of the broken shells. The remaining mixture passes through the screen, and is winnowed in a stream of air issuing from a blower 5 to remove fibrous husks, as it falls into a bath 6 containing liquid such as brine, in which the kernels 8 float and the remaining broken shells 7 sink. The kernels 8 are skimmed from the liquid and dried, and may then be screened to separate whole kernels from broken kernels. The device 1 comprises a stationary cylindical casing 9, Fig. 2, haviing a plurality of axially spaced anvil blocks 10 secured to its inner wall, and a shaft 11, which passes axially through the casing and is rotatably mounted, in bearings 12 and 13. Axially spaced chisels 14 are keyed to the shaft. Each chisel has a hub 15 and a rectangular blade 16, provided with a sharp leading edge 16A, Fig. 1. The blades are inclined to the shaft, and are helically disposed around it, so that, on rotation of the shaft, they pass between the anvil blocks to crack the nuts and propel kernels and broken shells through the casing, and discharge them through the holes in the plate 3. The inner edge of each hole may have a projecting wall with a chisel-edge. The holes may be substantially triangular or trapezoidal.
Patent GB-1174539-A (GB)
Title: Electric Fuel Pump Controls
IPC: F02D17/04
Filed: 1968-10-17
Abstract: 1,174,539. Starting prime movers. GENERAL MOTORS CORP. 17 Oct., 1968 [22 Dec., 1967], No. 49202/68. Heading H2H. A system for starting an internal combustion engine has means whereby the fuel pump is energized in order to fill the fuel system and thereafter the starter motor is energized to start the engine. Initially a switch 40 is set to the engine cranking position (shown in full line) and the transmission selector to a setting to open a switch 50. The fuel pump 10 is then energized by a battery 14 by way of a branch circuit 18 and contact 46, in the upper position, of a relay 32. An indicator lamp 58 will also be energized by way of contact 42 of a voltage regulator 30 and the field winding 26 of an engine driven alternator 12. After a short interval adequate to allow the pump 10 to fill the fuel system the transmission selector 52 is moved to a setting wherein the switch 50 is closed. The battery 14 now energizes the starter motor 48 to crank the engine whilst at the same time energizing the ignition circuit 54 from the battery. As soon as the engine starts to operate the switch 40 is moved to its engine running setting (shown dotted). The field winding 26 is now energized from the battery by way of a resistor 60 in parallel with the lamp 58. When the output voltage of the alternator reaches a selected value the winding 34 of relay 32 is energized to change over contacts 38, 46. The field winding 26 is then connected to the output of a rectifier 28 supplied by the alternator 12, the battery 14 now being charged by this output. The changeover of contact 46 connects the fuel pump 10 to the output of the rectifier 28 by way of the switch 40, resistor 62 and the branch circuit 16. At this stage the lamp 58 is extinguished due to the presence of similar values of voltage at each of its terminals.
Patent GB-1162166-A (GB)
Title: Apparatus and methods for processing Meat-Bearing Material
Inventor: KURIHARA SHINJI
IPC: A22C17/04
Filed: 1966-11-03
Abstract: 1,162,166 166. Separating inedible parts, e.g. bones, from meat and fish. S. KURIHARA. 3 Nov., 1966, No. 49296/66. Heading A2U. In a method and apparatus, Figs. 1 and 2, for separating edible parts from inedible parts of meat including fish, the meat is crushed between rotating, toothed rollers 11, 12, 13 and 14 in a crusher 10. The crushed meat is fed, by an endless travelling belt 19 provided with transverse plates 20, through a hopper 26 and on to a rotating drum 30 provided with perforations 33 through which small pieces of meat pass into the drum. Larger pieces, which cannot pass through the perforations, accumulate in the hopper 26, from which they are removed as inedible waste material. The small pieces of meat are discharged from the drum 30 through its outlet 29 and through a hopper 32 on to a rotating, lower drum having perforations 49 through which most of the small pieces pass into the drum 34. Pieces which do not pass through the perforations 49 are fed, by a polygonal scraper 38, Fig.3, rotating in the opposite rotational direction to the drum 34, into the nip between the upper flight of an endless, resilient, belt 114 (travelling at a speed which differs from the peripheral speed of the drum 34) and the adjacent surface of the drum 34, so that some of the pieces are crushed and further subdivided and forced through the perforations 49 into the drum 34. Hard inedible pieces such as pieces of bone which resist further subdivision are discharged from the nip, through a shoot 115, into a waste bin 40, Fig. 1. Pieces of edible meat are discharged from the drum 34, through its outlet 39 and a hopper 42, into a strainer 41 comprising a screw 45, Fig.3, rotating in a housing 47 having perforations 48, which are smaller in diameter than the perforations 49, and an outlet opening (51), Fig. 4 (not shown), whose area can be varied by the manual turning of a handle 52 attached to a pivoted lid 53. The screw 45 is rotated at high speed by a motor 55 and forces the edible meat through the perforations 48 into a receptacle 54.
Patent GB-1277070-A (GB)
Title: Control means for cranes
Inventor: TINGSKOG LENNART
IPC: B66C1/10
Filed: 1969-10-08
Abstract: 1277070 Remotely operated fastenings ALLMANNA SVENSKA ELEKTRISKA AB 8 Oct 1969 [9 Oct 1968] 49352/69 Heading E2A [Also in Divisions B8 G1 and G4] The gripping device of a crane, which is raised and lowered by cables round pulleys 10 (Fig. 1), is fastened to a load by four suitably located gripping members 31 which fit into matching holes in the load, or by pivotable arms 11, 12. The gripping device may be coupled to others by electromagnetic coupling means 14 (Fig. 2), to facilitate handling an elongated load. The pulleys 10 are associated with a displacement transducer 17 (Fig. 3) which may be a rotary potentiometer or a perforated disc between a lamp and photocell, producing a number of pulses from the photocell proportional to the vertical displacement. When the crane starts to raise a load from e.g. the hold of a ship, switch 20 is closed to feed pulses from transducer 17 to a counter 18 associated with units 21-25 and transistor 26 to produce a voltage V ref  across resistor 27 corresponding to the height of the gripping device above the loading point. When the voltage V ref , which may have a non-linear relationship with the pulse count, is less than a preset value by a predetermined amount, polarised relays 28, 29 are energised to retard the crane and then stop it. The system can also be used for loading into the ship.
Patent GB-1159222-A (GB)
Title: Panel with Foamed-in-Place Core
IPC: E06B3/70
Filed: 1967-10-31
Abstract: 1,159,222. Moulding laminated panels. HOME COMFORT PRODUCTS CO. 31 Oct., 1967 [23 Dec., 1966], No. 49397/67. Headings B5A and B5N. [Also in Division E1] A method of moulding a panel with a foamed in place core comprises placing a metal or plastics sheet 42 on the lower surface of an inclined mould, adhering thereto four metal or plastics channel section members 21-24 with vents 28 at the corners, lining the inside lengths of members 21, 23 with preformed resilient polyurethane foam strips 30, laying a line 50<SP>1</SP> of uncured foam along a lower portion of the mould, adhering a second metal or plastics sheet 40 to the upper side of the frame, applying an upper mould plate 80, and allowing the foam to selfcure or applying heat to assist in curing, gas coming off during curing escaping through the foam strip 30 and vents 28. The curing foam expands and partially penetrates the foam strip 30 to provide a reinforced area.
Patent GB-1080817-A (GB)
Title: Synthetic film materials
Inventor: SHEPHARD BASIL ROBERT
IPC: C08J7/046
Filed: 1964-12-04
Abstract: A film of linear polyester is treated on at least one surface with a solution or dispersion in a volatile medium of one or more halogen-containing phenolic substances at a temperature of at least 30 DEG C and then coated on the treated surface an adherent layer or layers of an organic film-forming material, the single layer, or the outer-most layer where more than one is applied, containing finely-divided discrete particles of a translucence-producing toothing agent or agents.  The phenolic compounds are compounds containing one or more benzenoid rings and one or more hydroxyl groups and one or more halogen atoms which hydroxyl groups and halogen atoms are attached directly to carbon atoms belonging to a benzenoid or fused benzenoid ring or rings. Many suitable compounds are listed.  The film may be of polyethylene terephthallate and may be molecularly oriented by stretching in one direction or two directions at right angles. Solvents may be lower ketones, lower alcohols or chlorinated hydrocarbons or dilute solutions of volatile bases such as dilute ammonia and the phenolic material may be applied by dipping or bead application.  The organic film forming material may be one or more of a cellulose ester or ether, an acrylic polymer or copolymers, a urea formaldehyde resin, or a modified urea-formaldehyde resin, a melamine-formaldehyde resin or a modified melamine formaldehyde resin, a polyvinyl acetal, an alkyd resin, a curable epoxy resin, a polyamide or a polyester. The finely divided inorganic toothing agent may be silica, silicates, ground glass, chalk, talc, diatomaceous earth, magnesium carbonate, zinc oxide and titanium oxide, preferably silica of particle size 0.1-15 microns. The compositions may be applied from a volatile solvent medium by dip coating, bead coating or reverse roll coating.  An intermediate layer may be applied which may be a mixed terephthallate-isophthallate polyester or a polyester amide or a polyester oxazoline a polyvinyl halogeno acetate or a copolymer of a vinyl halogeno acetate, a chlorinated polyalkyl acrylate or a polyalkyl alkylmethacrylate or a chlorinated copolymer of alkyl acrylates and/or akylmethacrylates, a curable epoxy resin, a cellulose ester or ether, an acrylic polymer or copolymer, a urea formaldehyde resin or a modified urea formaldehyde resin, a melamine formaldehyde resin or a modified melamine formaldehyde, an alkyd resin, a polyvinyl acetal, a polyamide or a polyester.  The phenolic compound may be applied simultaneously with the deposit of the said intermediate layer.
Patent GB-1372116-A (GB)
Title: Fibril and a process for its manufacture
IPC: D21H27/00
Filed: 1972-10-27
Abstract: 1372116 Paper made from synthetic polymer fibrils GULF RESEARCH & DEVELOPMENT CO 27 Oct 1972 [29 Oct 1971] 49681/72 Heading D2B [Also in Division B5] A process for preparing polyolefin fibrils for use in papermaking comprises feeding a heated hydrocarbon solvent solution of a polyolefin having an inherent viscosity (defined in the Specification) of at least 3.5 to the inlet 80 of a centrifugal spinning device 22 while simultaneously cooling the periphery of the interior 84 of the device (e.g. by feeding non- solvent for the polymer at a temperature of -10‹C to 40‹C into the interior via inlets 10 and 112), removing the resultant solvent swollen fibrous mass through outlet 64, separating the polymer solvent from the fibrous mass by means of a wringer and/or filtration, beating the fibrous mass in a non-solvent for the polymer (e.g. - isopropanol) which is soluble in the hydrocarbon solvent to separate the mass into a plurality of fibrils containing preferably between 0.25% and 5% by weight of the hydrocarbon solvent and removing the fibrils from the non-solvent liquid by filtration. The centrifugal spinning device 22 comprises stationary cover plate 68 in which is formed the inlet 80 for the polymer solution, disc-like plates 86 and 100 rotatable at high speeds (e.g. 4,000 to 18,000 r.p.m.) via shaft 88, pulley 90 and belt 92, and flails 102 pivotally mounted on pins 104 between the plates 86 and 100 and the heated polymer solution is fed through the inlet 80 to contact the face of plate 86 at a point having a tangential velocity of 100 cm/sec. The hydrocarbon solvent preferably has a boiling range of 155‹-180‹C and the polymer is heated therein to a temperature of 140 to 160‹C. The coolant liquid used to cool the peripherary of the interior of the spinning device is preferably the same solvent used for dissolving the polymer. Where the subsequent use of the fibrils is for non-aqueous solution paper-making the beating non-solvent may be an aliphatic hydrocarbon. Examples relate to the preparation of fibrils of polyethylene and polypropylene and their conversion into paper sheets by slurrying the fibrils to the head box of a Noble and Wood machine and forming the sheets by conventional paper-making techniques.