baber/WOPTO huggingface dataset:
Patent GB-1302552-A (GB)
IPC: G06G7/75
Filed: 1969-05-03
Abstract: 1302552 Solving simultaneous equations T A HALL and S K MITRA 29 April 1970 [3 May 1969] 22696/69 Heading G4G A network for solving n simultaneous linear equations (n # 3) of the form when Y A  ... Y N  are n observed values common to all equations, comprises means for feeding signals proportional to the observed values to respective channels in each of which there is an adder for adding to the input signal of that channel the output signals of the corresponding adders of the remaining channels, each such output being further multiplied by an adjustable coefficient. The self-explanatory figure shows such a circuit for solving three equations to obtain α, #, γ corresponding to α 1 , α 2 , α 3  in the equations above. The three equations for α, #, γ can be re-written as three equations for Y A , Y B , Y C , that for Y A  being  where L 1  ... L 3  are fresh constants bearing a fixed relation to K 1  ... K 3 . The circuit shown solves three equations of the form (the equations for # and γ being similar), the nature of the constants C and F being apparent from the figure. These three equations for α, #, γ can be re-arranged as equations for Y A , Y B , Y C , that for Y A  being and these equations can be seen to be analogous to the original (theoretical) equations with the constants L represented by combinations of the coefficients C and F. The values of these coefficients are set by feeding in turn to the input of the circuit three sets of values for Y A , Y B , Y C  for each of which it is known that one of the outputs α, #, γ is zero. A procedure is described in the Specification for adjusting the potentiometers associated with the coefficients C, F and opening the switches S corresponding to those values of C known to be zero. The circuit may be applied to an X-ray apparatus for the analysis of specimens known (or assumed) to be made up of n elements A, B, C &c., in proportions α, #, γ &c., the per cent concentration of an element being determined by measuring the relative magnitude of the signal obtained from a characteristic X-ray line of the element. The method used consists in counting electrical pulses received from a detector (e.g. a gas proportional counter or semi-conductor detector) which emits pulses having a mean height proportional to the energy of incident X-rays and hence inversely proportional to their wavelength. The number of pulses received in a given time within n different narrow bands of pulse heights determines the mean ordinates of a pulse-height distribution curve. The n bands may be at or near the known peaks of the curves of the various n elements. The proportions α 1 , α 2  &c. of the elements are given by the equations above where Y A , Y B  &c. represent the outputs of a pulse-height analyser. The output pulses may be fed to separate digital stores and the outputs of the stores fed to D/A converters after sufficient accumulation. The coefficient potentiometers are set by feeding in turn to the circuit signals derived from the analyser when loaded with pur elements A, B, C &c.
Patent GB-1307395-A (GB)
Title: Lamp
IPC: C09K11/02
Filed: 1970-02-23
Abstract: 1307395 Luminescent screens WESTING- HOUSE ELECTRIC CORP 23 Feb 1970 [20 March 1969(2)] 32797/72 Divided out of 1307394 Heading C4S A tubular lamp envelope is uniformly coated with phosphor particles by flushing a phosphor suspension including a vaporizable solvent and a volatilizable organic binder through the envelope held vertically, immediately introducing heated air into the top of the envelope to accelerate the setting and drying of the suspension at the top of the envelope, reducing the air velocity to dry the remainder more slowly and lehring the envelope to remove the binder. A discharge lamp envelope is coated by passing an aqueous slurry including polyacrilic acid binder through the envelope using an automatic coating machine, passing air at 120- 155‹ F. at 650-1000 ft./min. down the envelope to set the upper 5 inches of the coating whilst slurry drains from the bottom of the envelope; passing air at 200-250 ft./min. through the envelope until the entire coating except for the bottom inch sets; passing air at the orginal velocity until the coating is dry and baking at 1200-1250‹ F. to remove the binder. In another embodiment a slurry including ethyl or nitrocellulose and xylene or butyl acetate solvent is used. The bottom of the envelope is closed and air at 70-90‹ F. and 500 ft./min. introduced to dry the top portion of the coating. The bottom is opened, allowing heavier than air vapours to escape, and passing hot air at 100-150 ft./min. until the coating dries. The phosphor is Ca halophosphate.
Patent GB-1317382-A (GB)
Title: Heat sealing apparatus
IPC: B65B51/16
Filed: 1971-08-18
Abstract: 1317382 Seaming non-metallic sheet material GERRARD CO Ltd 18 Aug 1971 38839/71 Heading B5K Apparatus for sealing two layers of heat sealable film to complete a package 12 comprises a rotary sealing and cutting member 20 formed of a first circular heated sealing and cutting disc 24 and a second sealing disc 28 located on the side of the disc 24 nearer the package 12; a pair of upper belts 32, 34 one on each side of the member 20; and a driven belt 18 of resilient material bearing against the underside of the lower film layer, the belts 32, 34 and the member 20. As shown, filled thermoplastic bags 12 to be sealed are supplied by a conveyer 10 comprising a belt 14 having the belt 18, e.g. of asbestos fibre, superimposed thereon. The disc 24 is provided with electric heating elements 23 and has a ridged periphery 26. The disc 24 forms a " bead seal " 78 and the disc 28 forms a " fin seal " 80. A hollow axle 50 is secured to the member 20 and is located in bearings 54, 56 secured to a plate 62. Arms 64, 66 are bolted to the plate 62 and are secured to the axles of pulleys carrying the belts 32, 34. A spring 72 urges the plate 62 to pivot on a hinge 71 to resiliently urge the member 20 and the belts 32, 34 against the belt 18. To raise the member 20 and the belts 32, 34, an arm 74 is moved about a pivot 75 to a vertical position to bear against the plate 62 and pivot it about the hinge 71.
Patent GB-1318631-A (GB)
Title: Method of making grooves on surfaces of an article apparatus  therefor and article made by said method
IPC: B21H7/18
Filed: 1970-06-22
Abstract: 1318631 Rolling; making grooved articles LENINGRADSKY INSTITUT TOCHNOI MEKHANIKI I OPTIKI 22 June 1970 30116/70 Headings B3A and B3M [Also in Division B6] In a method and apparatus for making grooves in the surface of an article a spring-loaded spherical member, either a ball or a spherical diamond member soldered to a metal body, is pressed into the surface of the article and the member and article are moved to produce the desired pattern on the surface. The articles may be cylinder liners, pistons, sliding or rolling contact bearings, rings of spinning machines, gauge blocks or articles requiring a decorative finish such as reflectors for heating appliances, fountain pen caps, vessels or articles of jewellery. In one embodiment for grooving the outer cylindrical surface of a body of revolution the body 2 is rotated about its axis A-A, Fig. 27 and the spherical member 1 is mounted on a holder 6, spring-loaded by a spring 16. The holder is slidable within a sleeve 12 by means of a bushing 7 and driven by a motor 11 via an eccentric. The assembly supporting the spring-loaded spherical member is mounted on a base 5 which is progressively moved in a direction S parallel to the axis A-A. The combined motions produce a series of sinusoidal grooves which may interconnect or be separate from each other. By mounting a body of rotation so that its end face is abutting the member 1 and direction S is parallel to the radius of the body a pattern of grooves is produced on the end face, Fig. 29 (not shown). A hollow body of revolution may be patterned by inserting the member 1 on an extended holder 6 into the bore of the body, Fig. 28 (not shown). A rod or pipe of long length may be grooved by passing it in a direction S, Fig. 31, and rotating it in a direction B by means of rollers 47 through a holder 6b in which are mounted members 1 on springs 16. The holder is reciprocated in a direction N. A flat surface is grooved, Fig. 30, by passsing a body 4 rectilinearly past a member 1 mounted on a holder 29 which is reciprocated in a direction N on a base 31 which is simultaneously rotated about an axis P-P normal to the surface. The member is moved by an eccentric 44 driven via shaft 38 and gearing 39, 40, 41 by a motor 36 and the base 31 is rotated via a hollow shaft 33 and gearing 34, 35, 37 by motor 36.
Patent GB-1323547-A (GB)
Title: Manufacture of turbine rotors
IPC: F01D5/34
Filed: 1971-01-20
Abstract: 1323547 Turbine rotors BRITISH LEYLAND TRUCK and BUS DIVISION Ltd 4 Jan 1972 [20 Jan 1971] 2773/71 Heading FIT [Also in Division B3] A method of making a composite turbine rotor comprises making turbine blades 1 with waisted roots 3, making an annular assembly of the blades with their roots juxtaposed and forming the rotor hub 9 by flowing a superplastic metal around the roots. The blades are cast from a temperature resistant material, e.g. metal or ceramic, and the wasted roots are machined. The blades are placed in a circular jig 5 containing a locating ring 6 and a lower die 7. A pre-heated slug of superplastic metal is placed in the lower die and pressed by an upper die 8 to form a rotor hub 9.
Patent GB-1327425-A (GB)
Title: Devices for controlling wire being unwound from coils
IPC: B65H57/18
Filed: 1970-09-04
Abstract: 1327425 Support for a stationary coil TINSLEY WIRE INDUSTRIES Ltd 2 Sept 1971 [4 Sept 1970] 42410/70 Heading D1J To keep the package (13) under control whilst it is being unwound from its upper end, a plurality of depending long arms 2 are provided, these arms being spaced around and pivoted on a supporting frame 5. Each arm 2 has an upper shorter arm 3. The arms 3 converge towards each other at their upper ends and the arms 2 converge towards each other at their lower ends. As the package 13 decreases in height the arms 2 swing outwards to hold it. The arms 3 may be biassed inwardly by weights or springs. A frustoconical hat may be provided on the supporting frame 5 to cover the short arms 3. The angle between the arms 2 and 3 is between 120‹ and 170‹.
Patent GB-1333971-A (GB)
Title: Oscillating piston engines
IPC: F01C9/00
Filed: 1971-02-18
Abstract: 1333971 Oscillating piston engines O ROCHA and S CANO 18 Feb 1971 4915/71 Heading F1F [Also in Division F2] In an oscillating piston engine, as shown, a twostroke I.C. engine, a toroidal cylinder E provided with inlet ports D 1 -D 4 , outlet ports C 1 -C 4 , ignition plugs G 1 -G 4  and fuel-injection nozzles I 1 -I 4 , houses two sets of pistons A 1 , A 2 , B 1 , B 2  mounted for relative oscillation on members J, K having co-axial sleeves 63, 69, Fig.15 arranged to oscillate synchronously in opposite senses by means of intermeshing gears 67, 68 engaging arcuate toothed portions 63', 69' on the respective sleeves 63, 69, the sleeve 63 being connected to means by which its oscillating motion is converted into unidirectional rotary motion of a drive shaft S, Fig.9. Sleeve 63 transmits its oscillatory motion via a shaft 55 and gear teeth to drum 46, 47, 48 which has two sets of oppositely clutched pinions 52, 53 mounted therein to rotate gears 39, 44 on coaxial shafts alternately in opposite senses, this motion being transmitted via further gearing to the output shaft S. Sleeve 63 also produces rotation of a shaft 23 Fig.9 via a crank arm 62, rod 63, crank-shaft 59, gear 58 and shaft 57, Fig.15, the shaft 23 driving the various ancillary engine equipment. The shaft 23 may also constitute the main engine output shaft. The engine is started by an electric motor engaging a crown wheel 19 Fig.9, and a pulley wheel 20 and belt drive a scavenging pump (26) Fig.6 (not shown).
Patent GB-1334223-A (GB)
Title: Treatment of mineral mixtures
IPC: C22B34/00
Filed: 1970-11-02
Abstract: 1334223 Separation of minerals NATIONAL RESEARCH DEVELOPMENT CORP 2 Nov 1970 [1 Aug 1969] 38729/69 Heading C1A Mixtures of minerals are heated in admixture with solid alkali metal hydroxide such that one mineral reacts completely and another remains unreacted, the whole mass remaining visibly solid throughout, and the product being a poroufrit. The product may be leached with water or aqueous HCl or HF to extract the reacted material. The minerals are selected from anorthite (CaAl 2 Si 2 O 8 ), apatite (Ca 5 (PO 4 ) 3 F), calcite (Ca- CO 3 ), cassiterite (SnO 2 ), chromite (FeCr 2 O 4 ), columbite ((Fe,Mn)(Nb,Ta) 2 O 6 ), almandine (a garnet, Fe 3 Al 2 Si 3 O 12 ), hematite (Pe 2 O 3 ), ilmenite (FeTiO 3 ), magnetite (Fe 3 O 4 ), monazite ((La,Ce, Th)PO 4 ), pyrochlore ((Ca,Na,Ce)(Nb,Ti,Ta)(O,- OH,F) 7 ), scheelite (CaWO 4 ), thorite (ThSiO 4 ), wolframite ((Fe,Mn)WO 4 ), rare earth phosphates, e.g. xenotime (YtPO 4 ), zircon (ZrSiO 4 ). The fritting temperature varies from 230‹ to 830‹ C. depending on the minerals present (see Ex. 9). The process may be repeated, after separation of the reacted part, for the unreacted part. In Ex. 10 mixtures of wolframite and cassiterite and heated with NaOH and leached with water to extract W. Other mixtures referred to are columbite and cassiterite, zircon and monazite, thorite, or xenotime, apatite and hematite, magnetite, ilmenite, or chromite. In Exs. 1-8, single minerals are fritted: Exs. 1-5 monazite + NaOH to give oxides of Ce, La, Th, and Na 3 PO 4  which is leached with water; the oxides are then dissolved in HCl; Exs. 6, 7 columbite + NaOH followed by leaching with water then HF; Ex. 8 wolframite + NaOH followed by leaching with water.
Patent GB-1336306-A (GB)
Title: Snow-removing device
IPC: E01H5/04
Filed: 1969-12-17
Abstract: 1336306 Snow ploughs DENBIX BRUSHES Ltd 14 Dec 1970 [17 Dec 1969] 61580/69 Heading E1G A snow plough includes a horizontal rotor in two portions arranged transversely of the plough, the rotor having helically arranged means thereon e.g. a helical blade to move snow along its own length, said means being arranged to be away from the surface, and further, more flexible portions in the form of flexible filamentary brushes for sweeping the surface. The plough may include a slotted tube 22 from which air is directed under pressure through slot 23 to lift the surface snow, air coming from compressor 18, which also may provide an air cushion via device 26 to raise the rotor axis. A petrol engine drives the rotor, the compressor and an impeller 16 which passes snow from an opening in hood 14 up a discharge chute 17. The brushes may constitute tufts of wire, as shown, which may alternatively be fixed to a helical wire running between the helical blades (Fig. 3, not shown). The slot 23 may be of variable dimensions.
Patent GB-1340776-A (GB)
Title: Grinding and cutting machines
IPC: B24B7/00
Filed: 1972-09-26
Abstract: 1340776 Grinding; work tables BAKER PERKINS Ltd 26 Sept 1972 [6 Oct 1971] 46542/71 Headings B3D B3B and B3K A machine for grinding or cutting flash comprises a stationary grinding or cutting head, means for transporting a workpiece 9 on a freely rotatable support around a closed path including a region at which grinding, &c., takes place, means for turning the workpiece 9 to present a series of portions to the head at successive passes and a stationary guide bar 10 for co-operation with means 11 on the support to locate the workpiece 9 angularly during machining. The transporting means includes a rotatable table 6 on a cross feed table 5, in turn supported on a traverse table 3, the tables 3, 5, being movable on a base 4 by means of piston and cylinder assemblies (not shown). A workpiece support plate 7 rests on the table 6, and rollers 11, also Fig. 2 (not shown), co-operate with the guide bar 10 during each working stroke past, e.g. a grinding wheel 1. Limit switches (not shown) control the movement cycle, and turning of the workpiece 9 is achieved by cooperation of a gear ring (13), Figs. 4 and 5 (not shown), on the table 6 with a fixed rack (14), or engagement of a friction surface on the table 6 with a friction bar (not shown).
Patent GB-1343289-A (GB)
Title: Catalytic method for hydrogenating nitro-compounds
IPC: B01J25/00
Filed: 1971-01-14
Abstract: 1343289 Amines INSTITUT KHIMICHESKIK NAUK AKADEMII NAUK KAZAKHSKOI SSR and INSTITUT ORGANICHESKOG KATALIZA I ELEKTROKHIMII 14 Jan 1971 1937/71 Heading C2C [Also in Division C7] Nitro compounds are hydrogenated using a nickel/aluminium alloy catalyst containing a Group VIII metal other than nickel as promoter and a Group II metal as stabilizer. Group VIII metals exemplified are palladium, platinum and rhodium and Group II metals used are zinc, magnesium, cadmium and calcium. Alloys of these metals are granulated and some aluminium is leached from them with aqueous sodium hydroxide to activate them. In examples 4,4<SP>1</SP>- dinitrodiphenyl ether, 3,3<SP>1</SP>-dinitro-4,4<SP>1</SP>-diaminodiphenyl ether, bis-4-(nitrophenyl oxide)-hydroquinone, bis-3-(nitro-4-aminophenyloxide)- hydroquinone, p-nitrophenol and p-nitrophenetol were hydrogenated at a temperature of 100- 200 C. under a pressure of hydrogen, the compounds being present either in solution in dimethyl formamide or water or in the case of p-nitrophenetol as the pure liquid.
Patent GB-1343431-A (GB)
Title: Screens
IPC: B07B1/46
Filed: 1970-01-21
Abstract: 1343431 Vibratory screens BBA GROUP Ltd 13 Jan 1971 [21 Jan 1970] 2953/70 Heading B2H [Also in Division B5] A polyurethane screen formed by casting comprises a reinforcement of metal rods or wire or plastics mesh. Where metal rods are used, the edges of the screen are reinforced to facilitate mounting of the screen on to a vibrating frame, e.g. by bolting or riveting the screen through the rod to the frame. The apertures in the screen may be of any suitable cross-section, e.g. circular, square or elliptical and may be cylindrical or partially or completely tapering.
Patent GB-1346433-A (GB)
Title: Surface-hardened titanium and titanium-alloy and method of producing  the same
IPC: C23C12/00
Filed: 1971-03-12
Abstract: 1346433 Electroplating; nitriding KOBE SEISKOSHO K K [trading as KOBE STEEL Ltd] 12 March 1971 6664/71 Headings C7B and C7U The surface of Ti or Ti-base alloy is hardened by coating it with a substituting metal, having a higher density, a larger diffusion constant and being more nitridable than Ti, and having a (meta-) stable beta phase and Vickers hardness of above 400, e.g. Fe, Ni, Cu, Mn, Mo or Co by electroplating, deposition, welding or painting, and heating the coated Ti (alloy) in an atmosphere consisting of or including N 2 . e.g pure N 2  or cracked NH 3  at 750 to 1050‹C for 10 to 100 hours, to diffuse and nitride the metal and form a ternary alloy coating of Tisubstituting metal - N. The hardened surface may be aged at 400 to 600‹ C to precipitate a fine alpha phase. Ti alloys specified are: Ti-6Al-4V, Ti-5Al- 2À5 Sn, Ti- 5Al-2Cr-1Fe, Ti-4Al-3Mo-1V, Ti-6Al-6V-2Sn Ti-13V-11Cr-3Al, Ti-12Mo-6Zr-4À5Sn and Ti- 2À25 Al-11Sn-5Zr-1Mo-0À2Si.
Patent GB-1348893-A (GB)
Title: Manufacture of vehicle wheel rims
IPC: B60B21/02
Filed: 1970-03-21
Abstract: 1348893 Stamping DUNLOP Ltd 19 April 1971 [21 March 1970] 33825/73 Divided out of 1348891 Heading B3Q [Also in Division B7] In the manufacture of a vehicle wheel rim, a body of elastomeric material, e.g. rubber or polyurethane is located within an open-ended sheet metal tubular rim blank and is compressed axially of the blank so as to cause expansion of the body radially of the blank and deformation of the latter. As illustrated in Fig. 1 radial expansion of the body 130, effected by movement of member 138 towards base member 134, forces the blank 131 radially outwardly against the inner wall 133 of die 132. The die 132 comprises a pair of semi-cylindrical segments lockable on the base member 134. In the arrangement of Fig. 3, a wheel rim blank with a tyre thereon and provided with tyre bead retaining flanges and a well is formed into its desired shape by the action of a die comprising die members 30, 42. The die member 30 includes two axially movable collars 35, 36 and rings 37, 38 of elastomeric material. Upon the die members approaching, the well is first axially compressed to form beading 34 and the collars then move axially towards shoulder 39 so as to compress the rings 37, 38 and forms radially outwardly extending protrusions 43, 44 in the wheel rim. The Specification discloses apparatus for producing a wheel rim with a single radially outwardly extending protrusion (Fig. 4, not shown) and a method in which a diametrically undersized wheel rim is expanded to the required size.
Patent GB-1349134-A (GB)
Title: Confined-liquid seismic exploration methods and apparatus
IPC: G01V1/137
Filed: 1970-12-22
Abstract: 1349134 Cyclone separators BOLT ASSOCIATES Inc 22 Dec 1970 60983/70 Heading B2P [Also in Divisions B8 F2 and H4] In a system for generating seismic energy, by abruptly releasing pressurised gas into a volume of liquid so that an impulse is transmitted into the earth via the liquid and the diaphragm base of a container for the liquid, means are provided to maintain the container substantially filled with liquid. In the embodiment of Figs. 3 and 8 three "air guns" are submerged in water in a domed tank 14 having a polyurethane or rubber membrane 78 as its base, preferably reinforced by a polyurethane annulus (not shown) below membrane 78. On actuation of the air guns (in parallel) some water escapes with the air through a pipe 108. A multi-stage cyclone separator comprising tangential nozzles 109, 120, 124 and plates 112, 122 allows the air to vent to atmosphere via ports 114, 119, 128 while the water returns to tank 14 via plate apertures 131, conduit 102 an one-way valve 106. Energy transmission to the earth is enhanced by the provision of inertial mass 76. When the air guns are actuated reaction forces cause the seismic energy generator to leap off the ground; the generation of undesired energy is avoided by slowing the subsequent fall of the generator so that a secondary impact is prevented and so that disturbance of the water dies down during the fall. The generator support comprises two pivoted arms 26 carrying boom 24 and actuated by hydraulic ram 42 for raising or lowering the generator. A generator support carriage can slide along the boom, under the control of chain drive 52, 56, 58, from a retracted position on transporter vehicle 12 to an extended operating position shown. Ram 42 has a oneway valve on its piston, which allows rapid upward recoil motion of the generator when the air guns are operated but prevents a rapid fall. The recoil energy is absorbed by shock absorber 28.