baber/WOPTO huggingface dataset:
Patent GB-1445986-A (GB)
Title: Containers for shaving units
IPC: A45D27/24
Filed: 1972-11-24
Abstract: 1445986 Razors WILKINSON SWORD Ltd 16 Nov 1973 [24 Nov 1972] 54494/72 Heading B4B [Also in Division B8] A container for a "shaving unit", which unit has one or more blades mounted in a rigid (usually plastics) member, comprises a plastics moulding 10 with two compartments each holding one shaving unit. A razor handle 18 can be fixed to the unit and the unit withdrawn from the container; a chain hole 14a is provided in each compartment so that a wet unit can be returned to its compartment after use and rinsing. A projection 15 in the wall of each compartment retains the unit. An ejector button 19b releases the unit from the handle 18. In another embodiment (Fig. 7, not shown) the unit is released from the container by a rotary movement of the handle.
Patent GB-1536010-A (GB)
Title: Method and apparatus for abatement of gasoline vapour emissions
IPC: B67D7/04
Filed: 1976-12-31
Abstract: 1536010 Dispensing volatile liquids; venting tanks HIRT COMBUSTION ENGS 31 Dec 1976 54520/76 Headings B8N and B8V In the transfer of a volatile liquid to and from a storage container 18 the emitted vapour is vented to an incinerator 48, mixed with air and ignited. The pressure of the gas above the liquid level in the container is sensed and the venting is controlled by the pressure to ensure complete combustion. Changes in container vapour pressure occur both in filling from a tanker 25 and filling vehicle tanks 15. Air is supplied to the burner 63, Fig. 2, of the incinerator along line 65 and vapour along line 53. A second parallel vapour line 54 of larger diameter is used when high pressures occur in the container to a burner 90. A pilot burner 101 supplied from a propane cylinder 100 ignites the mixture.
Patent GB-1367335-A (GB)
Title: Manufacture of glass lenses
IPC: C03B40/02
Filed: 1971-11-25
Abstract: 1367335 Lenses EASTMAN KODAK CO 25 Nov 1971 [27 Nov 1970 (2)] 54745/71 Heading C1M Lenses are manufactured by moulding glass 47 in moulds of glass-like carbon 15, 17, the mould being of high surface quality and accuracy, in an inert or non-oxidizing atmosphere. Preferably the mould and glass are preheated, the mould to 530-590‹ C. and the glass, an optical barium crown glass, is softened at 600-700‹ C. The atmosphere may consist of 95% N2 and 5% H2. A pressure of 200-300 lb. may be applied to the mould, for 2-20 seconds, to ensure accurate moulding. One embodiment (Fig. 1) comprises a fixed mould assembly 1 and a movable assembly 5, combined with plunger 7, contained in a glass envelope 13 in which atomspheric conditions can be controlled. The mould assemblies comprise glass-like carbon inserts 15 and 17, graphite cores 19 and 21 to support the inserts, supports 23 and 25, ceramic encased heaters 27 and 29 and thermocouple assemblies 31 and 33 which are thermally connected to the mould inserts to control moulding temperatures. The opposing surfaces of the mould inserts are contoured according to the shape of the lens to be produced, being finished to have a high surface accuracy and quality comparable to that of the intended lens so that grinding and polishing of the product lens should not be necessary. A further embodiment incorporates a vertical assembly with aligning guide pins (Fig. 3, not shown). The mould may comprise a ring-like element 129 (Fig. 5a) disposed around insert 127 for adding the necessary thickness to the lens to be produced.
Patent GB-1201574-A (GB)
Title: Improvements in a combined overload clutch and chuck
IPC: F16D7/06
Filed: 1968-11-19
Abstract: 1,201,574. Positive clutches. ERIKSBERGS MEK VERKSTADS AB. 19 Nov., 1968 [24 Nov., 1967; 13 Dec., 1967], No. 54836/68. Heading F2C.  A tool 1, Fig. 1, is held in a chuck 3 by balls 7 which are forced into grooves 5 in the tool by springs 13 and an annulus 10. When the torque on the tool rises above a predetermined limit the springs are compressed and the balls are forced out of the grooves 5. The pressure of the springs 13 is adjusted by a nut 12. To remove the tool 1, the annulus 9 is rotated against a spring 21 by means of a sleeve 22 and raised to permit the balls 7 to move outwards. Figs. 7-11 (not shown), illustrate ways in which the upper end of the tool may be grooved or tapered or both to effect automatic ejection or permanent disengagement on overload. Figs. 13,14 show an embodiment in which the tool is inserted or removed by rotating an annulus 9 and sleeve 45 against springs 42 until recesses 40 are opposite the balls 7 whereupon the balls move outwards into the recesses.
Patent GB-1449660-A (GB)
Title: Vehicular power steering systems
IPC: B62D5/097
Filed: 1973-11-27
Abstract: 1449660 Power steering systems TRW Inc 27 Nov 1973 [15 Dec 1972] 54985/73 Heading B7H A control valve 17 for a power steering system includes a housing with an inlet port 19, an exhaust port 20, ports 21, 22 for connection to a power steering cylinder or cylinders 31, 33 and a port 23 for connection to an auxiliary implement circuit, and a valve spool 58 movable from a central neutral position to either of two operative positions, the spool connecting parts 19 and 23 in the neutral position and during movement to an operative position progressively closes that connection whilst opening one of ports 21, 22 to port 19 and the other of ports 21, 22 to port 20. This arrangement allows the steering requirements to be met at all times at the expense of the auxiliary implement arrangements. The spool is housed in a cylindrical bore 51 for limited rotation by a steering shaft 50, this movement causing axial shift of the spool through the agency of a ball 60 and helical groove 61, and is provided with annular grooves 62-68. The bore 51 has annular grooves P, M, C, X, R, Y, C 1 , P 1 , AUX, and P 2  of which P connects with inlet port 19, R connects with exhaust port 20, C and C 1  connect respectively with ports 22, 21 and AUX connects with port 23. The grooves P, P 1 , P 2  are interconnected by a passage 52, and groove M is connected via a passage 53 to a fluid metering section 54 of the gerotor type having gears 69, 70 and a commutator valve mechanism 71. In the neutral position shown all fluid entering port 19 is directed via groove P, passage 52, and grooves P 1 , 67, P 2 , 68 to AUX and thence to port 23. Axial movement of the valve to the left places groove M in communication with groove P and fluid flows from M through passage 53 to the metering section 54 and thence to a bore 79 of the spool 58, through a radial bore 80 and via groove 66 to groove C 1  and port 21. Returning fluid in port 22 enters groove C and passes via grooves X, 63 and R to port 20. During axial movement of the spool the flow to AUX is reduced as the flow to the power cylinder lines is opened and increased and is finally shut off when an extreme operating position is reached. Staging of the grooves allows progressive flow changes during movement of the spool. On rightward movement of the spool P 1  communicates with groove 66 and pressure fluid passes via bore 79 to the metering section 54 and then via passage 53, grooves M, 62, and C to the port 22.
Patent GB-1152920-A (GB)
Title: Diazotype Process and Materials
IPC: C07D263/14
Filed: 1966-12-09
Abstract: 1,152,920. Oxazoline derivatives; aryl ethanolamides. KALLE A.G. 9 Dec., 1966 [11 Dec., 1965], No. 55241/66. Heading C2C. [Also in Division G2] Oxazolines of Formula (I) wherein R is a benzene or naphthalene ring which may be further substituted by alkyl, alkoxy, or halogen and n is 1 or 2 are prepared by replacing the aliphatic hydroxyl group of the appropriate hydroxyaromatic carboxylic acid ethanolamide with chlorine, e.g. by reaction with phosphorus trichloride or thionyl chloride and then treating the resulting chloroethylamide thus obtained with a weak alkali to effect ring closure. The compounds of Formula (I) are used in a diazotype process.
Patent GB-1533238-A (GB)
Title: Split-screen television apparatus
IPC: H04N7/08
Filed: 1975-12-23
Abstract: 1533238 Television POST OFFICE 23 Dec 1975 [23 Dec 1974] 55518/74 Heading H4F A television system for reproducing separately component pictures from a television signal representing at least two component pictures in the same field, includes for each component picture a display means, switching means for selecting from the television signal the video signals representing the particular component picture, and means, providing a delay less than a field Dean period, to which the signal is applied, the switching means being arranged to select the delayed and undelayed signals in turn so as to increase the field scan rate of the component pictures as displayed by a factor of at least two. The television signal may represent two or more component pictures one above the other in the same field, the received signal being fed through a mixer 31, Fig. 5, to inputs 12, 13 of switches 8B, 8A respectively and also to a delay circuit 10 producing a delay equal to half the field scan period, the direct and delayed signals being shown in Figs. 4(a) and 4(b) respectively. Switches 8A, 8B switch between the direct and delayed signals to pass to displays A, B the waveforms shown in Figs. 4(c) and 4(d) respectively. In a 625 line system, a bistable 19 receives pulses from a circuit 27 every 155 and 311 lines after the beginning of a composite field period to change over the switches. To provide for synchronization in the waveform shown in Fig. 4(d), an AND-gate 33 and a second pulse forming circuit 28 are provided, the output of gate 33 producing a pulse beginning at line 156 in each field, which pulse is fed to mixer 31. Alternatively, the existing pulses 22, 23, Fig. 4(a), could be used for providing synchronization in the B picture output by operating switch 8B after, rather than before, the field synchronizing pulses. The extra vertical sync-pulse may be delayed or advanced by a quarter of a line in addition to the half field delay, so producing a 4:1 interlaced raster. Further, the normal interface may be reduced to 25:75, the extra vertical pulse at the same time being delayed to repeat the delayed lines half a line spacing below their undelayed equivalents. If the camera and display arrangements are modified to provide vertical scanning, vertically split component pictures may be employed. Reference has been directed by the comptroller to Specification 1,438,293.
Patent GB-1256358-A (GB)
Title: Improvements in electro-erosion machinery
Inventor: ALABASTER CLIFFORD
IPC: B23H7/28
Filed: 1968-11-25
Abstract: 1,256,358. Electro-erosion. SPARCATRON Ltd. 24 Nov., 1969 [25 Nov., 1968], No. 55832/68. Heading B3V. An electro-erosion apparatus comprises a floating head 1 carrying a plurality of tool electrodes 10 and having a cam ring 7 with a conical recess adapted to receive a cone member 8 carried by an hydraulic positioning control device, the cone member 8 being arranged for orbital movement about the control device axis so as to cause the head to describe a circular path when the member 8 engages the conical recess. The motion of the floating head is resisted by springs 9 which return the head to an initial position when the cone member 8 is retracted. The diameter of the circular path is determined by the vertical position of the cone member 8 relative to the conical recess of the cam 7. The apparatus comprises corner brackets 3, which support rods 2 supporting a frame 1 carrying the electrodes 10 and rods 4 which are in turn supported by members 5 resting on a work-table. The apparatus may be used for forming threads on the workpiece.
Patent GB-1416927-A (GB)
Title: Partially devitrified glass fibre
IPC: C03C13/02
Filed: 1973-12-04
Abstract: 1416927 Partially devitrified glass fibre BATTELLE MEMORIAL INSTITUTE 4 Dec 1973 [4 Dec 1972] 56200/73 Heading C1M In a process for the production of a partially devitrified glass fibre:-(a) a mixture 4 of inorganic compounds is prepared in proportions corresponding to a glass which, above a temperature Td within the temperature range at which the viscosity is 10<SP>3</SP>-10<SP>5</SP> poises, exists as a single vitreous phase, but which glass can, by cooling below Td, be decomposed to form vitreous inclusions dispersed in a vitreous matrix, the glass composition being such that a crystalline phase may be formed in the said inclusions by heating below Td; (b) the mixture 4 is melted and heated to above Td, and the vitreous melt formed kept above Td to homogenize the melt, after which the melt is kept at a temperature, above Td, at which the viscosity is suitable for drawing a vitreous fibre; (c) at least one vitreous fibre 6 is continuously drawn from the vitreous melt; (d) the fibre 6 is passed through a first zone in which it is kept at a temperature, below Td, at which vitreous inclusions are formed by phase separation; (e) the fibre 6 is cooled over its entire cross-section in a second zone, and then passed to a third zone in which its peripheral part is heated to a temperature, below Td, at which a crystalline phase is formed in the vitreous inclusions; and (f) the fibre is cooled to ambient temperature. Preferably the inorganic mixture 4 is melted and homogenized in metal crucible 1, the heating being by induction coil 5 to 1200-1600‹ C. The fibre is drawn by rotating drum 7 at, e.g., 10-60 metres/sec. The heating in the third zone (e.g. electrical furnace 8) may be at 700-1500‹ C. Aqueous starch suspension may be coated on the fibres before winding on the drum. A suitable glass for the process consists of, in weight per cent: SiO 2  44-55, Al 2 O 3  5-15, B 2 O 3  5-12, CaO 8-30, CaF 2  0-20 (CaO + CaF 2  8-30), NaF 0-15, Na 2 CO 3  0-15 (Na 2 O+Na 2 CO 3  0-15), TiO 2  0-10, P 2 O 5  0-7, Fe 2 O 3  0-20, and MgO 0-5.
Patent GB-1328249-A (GB)
Title: Process for manufacturing porous beta silicon-carbide articles
IPC: C01B31/36
Filed: 1970-11-26
Abstract: 1328249 Silicon carbide COMMISSARIAT A L'ENERGIE ATOMIQUE 26 Nov 1970 [28 Nov 1969] 56282/70 Heading C1A A porous #-silicon carbide article is prepared by a process comprising preparing a porous graphite carbon matrix having the shape of the required article and a density of from 1À4 to 1À5 g./cm.<SP>3</SP>, heating the matrix in vacuo to a temperature at which #-silicon carbide formation will occur, immersing the matrix in vacuo in a liquid silicon bath at substantially the same temperature for impregnation with consequential formation of silicon carbide, removing the matrix from the bath after impregnation and bringing it into contact with a porous graphite member to remove excess free liquid silicon by capillary attraction and then destroying the excess free carbon in the matrix by oxidation at a temperature of from 600‹ to 800‹ C. The carbon matrix may be prepared by agglomerating graphite grains of size between 1 and 100 Á by means of a binder, shaping by moulding and compacting and then subjecting it to a thermal cracking treatment with a hydrocarbon gas at about 900‹ C., the conditions being adjusted to provide the required density; such a matrix has a porosity of about 30%, and comprises graphite grains bonded by pyrocarbon. The bath temperature for impregnation is suitably 1500-1700‹ C., an amount of silicon equal to about 90% of the weight of the carbon is absorbed and most is converted into #-silicon carbide. Contacting of the impregnated matrix with porous graphite may be effected at 1500- 1600‹ C., during which some of the free silicon in the matrix pores is converted into silicate and that on the surface is removed by capillary attraction. The final oxidation at 600-800‹ C. may be effected with air for 200 hours yielding an article comprising 97% #-silicon carbide, density of about 1À7 g./cm.<SP>3</SP>, and 43% porosity, the carbide being in skeletonal form. Articles which may be so made include high temperature reactor fuel elements, filter elements, thermal shield elements and, in spherical form, catalyst supports. Special refractories may be obtained by impregnating the porous material with silicides. Specifications 1,328,250 1,050,233 and 1,013,056 are referred to.
Patent GB-1403206-A (GB)
Title: Titanium based alloy
IPC: C22C14/00
Filed: 1972-12-06
Abstract: 1403206 Titanium base alloys S G GLAZUNOV, O P SOLONINA, N M ULYAKOVA, V P KURAEVA, N F LYAPICHEVA, O A NIKISHOV 6 Dec 1972 56373/72 Heading C7A Titanium base alloy comprises:- the balance being Ti. Exemplary alloys are heated at 950‹C for one hour, air cooled, heated at 550‹C for 6 hours and then air cooled. USE:- Blades and compressor drums of gas and steam turbines.
Patent GB-1120087-A (GB)
Title: Apparatus for and method for mounting winding spools on the take-up shaft of a cutting machine
IPC: B21C47/24
Filed: 1966-12-16
Abstract: 1,120,087. Winding webs. NOVACEL. 16 Dec., 1966 [16 Dec., 1965], No. 56492/66. Heading B6B. A combined web-roll removing and core inserting device comprises a two part shell 10 (Fig. 4). Annular grooves (17) on the internal surface of the shell 10 are used to correctly position a plurality of web-roll cores 15 with respect to the winding shaft 5 used in a web slitting and rewind machine (not illustrated). A bracket 11 extending from the front of the shell 10 is used as a pusher to remove completed web-rolls E from the winding shaft 5 on to a storage mandrel 8, as shown in (Figs. 5 to 8). In so doing, the shell 10 moves completely over the shaft 5 (Fig. 6), so that the empty cores are now correctly positioned on the shaft 5. Opening the two-part shell 10, at this stage, enables the shaft 5 with cores 15 thereon to be removed and transported to the winding station of the web-slitting and rewind machine.
Patent GB-1276620-A (GB)
Title: Coil bodies
Inventor: STRAUSS HELMUT
IPC: G01G7/02
Filed: 1970-11-30
Abstract: 1276620 Coils METTLER INSTRUMENTE AG 30 Nov 1970 [7 Sept 1970] 56684/70 Heading H1P A coil for use in an electromagnetic balance to whose beam it is secured by hole 6 comprises a winding 4 in a channel of an e.g. aluminium former or carrier 3, and a layer 5 of aluminium foil, overlying the coil protects the latter from its environment and presents an exposed effective surface area less than that of the uncovered coils (Fig. 1). Alternatively the carrier may be of polyamide, and after winding the coil is encased with the same by casting or injection moulding; the exterior of the body being covered electrolytically with copper and then gold layers (Fig. 2, not shown). The coating may instead be of silver or nickel and chromium.
Patent GB-1317698-A (GB)
Title: Cargo loading system for an aircraft
IPC: B64D9/00
Filed: 1971-12-07
Abstract: 1317698 Loading containers into aircraft BOEING CO 7 Dec 1971 [11 Dec 1970] 56863/71 Heading B8Q A cargo handling system in an aircraft comprises control means for operating a series of driven wheels 103-107, Fig. 4, which move cargo containers laterally and longitudinally of the aircraft, and guiding and restraint means for the containers such as 76, 78, 84. The wheels are driven by electric motors such as M501, Fig. 3, through gear-boxes G501 and toothed belts 120. Actuators 116, 117 raise and lower the wheels to engage the containers. The wheels may be raised manually by a flexible cable 43, Figs. 9, 9A, and a handle 42. Ball transfer panels 52, Fig. 4, are provided adjacent the door which has retractable rollers 51 on its lower sill. The balls 61, Fig. 13, are loaded by springs 57 and supported on a bed of ballbearings. Retractable splitter rails are provided for separating the two halves of halfwidth containers. Movement of the containers is controlled by an eight-position switch, Fig. 27. Figs. 26, 26A (not shown), illustrate a circuit diagram for the control system.
Patent GB-1444385-A (GB)
Title: Apparatus for bending pipes
IPC: B21D7/06
Filed: 1973-12-11
Abstract: 1444385 Bending tubes R P MINGORI 11 Dec 1973 [20 Dec 1972] 57249/73 Heading B3E Tube bending apparatus for producing two bends of opposed senses comprises a first abutment 14 movable between two further abutments 16, 18, on the far side of one of which is a roll 38 restraining movement of the tube, the further abutment 18 remote from the roll being movable parallel to the direction of movement of the first abutment. As shown a support 20 has sides with pairs of aligned holes 36 (one of each pair shown). The first abutment 14 has a groove 22 of width and curvature to fit the bent tube, and is mounted on the rod 26 of a ram 28 secured to support 28 by arch 30. Abutment 16 has a groove 32 of width and curvature to fit the bent tube, and is mounted in a selected pair of holes 36 by shaft 34. Roll 38 having groove 40 is mounted in a stirrup 42. A pin 48 extends through slots 46 in the stirrup and a selected pair of holes 36, and is adjustably connected by screw 50 to the base 60 of the stirrup, so that the roll can pivot about the pin, and is adjustable in height relative to abutment 16 in accordance with tube diameter. The abutment 18 has a plane face 80, and is slidable by tracks and guides (not shown) in the arms 66 of stirrup 64, so as to be adjustable by screw 70 in accordance with the desired offset d, which is indicated before bending by abutting scale 82 against the tube when in position 86, and reading the scale against a datum 90. The stirrup is mounted in a selected pair of holes 36 by spigots 68. During the first part of the bending operation, the tube is bent about abutment 16 until it contacts abutment 18, whereafter bending occurs about abutment 14, and further bending about abutment 16.
Patent GB-1330132-A (GB)
Title: Improvements in or relating to image analysis
Inventor: FISHER COLIN
IPC: G06T7/00
Filed: 1969-11-24
Abstract: 1330132 Image analysis IMAGE ANALYSING COMPUTERS Ltd 23 Nov 1970 [24 Nov 1969] 57320/69 Headings G4D and G4H In a video scanning system for counting and sizing particles an electronic blanking mask BF is put over the border of the field being investigated and a live frame generator 30 opens a gate 28 only for the scanning of an area LF within the blank mask between lines 31, 33 whereby computed parameters of the particles which are released in the border d are inhibited. The computer 14 may generate one count pulse after the last scan of each particle; a pulse proportional to the length of each chord, at the end of that chord; a sum of the last pulses representing the area of the particle; or a count pulse for every particle in a size range. Or there may be several computers producing these parameters simultaneously and the outputs of all of which are inhibited while the scan is in the border d. The border may extend completely around the area LF (Fig. 7a, not shown).
Patent GB-1283227-A (GB)
Title: Trans-3,3-dimethyl-2-formyl-cyclopropane-1-carboxylic acid and dialkyl-ketals thereof
IPC: A47K1/09
Filed: 1969-07-14
Abstract: 1283227 Cyclopropane carboxylic acid derivatives ROUSSEL UCLAF 14 July 1969 [12 July 1968 (2) 57343/71 Divided out of 1283225 Heading C2C The invention comprises compounds of the formula and di-lower alkyl-ketals thereof wherein the alkyl group contains 1-6 carbon atoms. The compounds may be prepared by hydrolysing under basic conditions a compound of the formula where R is alkyl of 1-6 carbon atoms, and reacting the product if desired with a lower alkanol. The compounds may also be prepared by subjecting a compound of the formula to ozonolysis in the presence of a C 1-6  alkanol and reducing the product to the desired ketal which may, if desired, be hydrolysed under acidic conditions to produce the aldehyde.