baber/WOPTO huggingface dataset:
Patent GB-1410813-A (GB)
Title: Housings for electrical components
IPC: B23K1/14
Filed: 1972-11-24
Abstract: 1410813 Component assemblies; holders for piezoelectric crystals CARL-ZEISS-STIFTUNG [trading as JENAER GLASWERK SCHOTT & GEN] 24 Nov 1972 [24 Nov 1971] 54411/72 Headings H1R and H1E A housing (Figs. 1, 1a, 1b) for an electrical component comprises a base in which a steel pressure body 2 sealedly surrounds a glass body 3 within which is an electrically conductive element 4 whose coefficient of thermal expansion is matched to that of the glass body when a compression glass/metal seal is provided or whose coefficient of thermal expansion is less than that of the glass body when a reinforced compression glass/metal seal is provided. A support plate 1 of, e.g. Cu, Ni, Fe or other ductile metal surrounds the glass/metal seal and is soldered or brazed thereto by LMP solder after the glass sealing or by HMP solder simultaneously therewith. A cap of Cu, Ni or other ductile metal is cold pressure welded to the support plate, which is step offset at a to relieve stresses. The components may be Xtal oscillators, relays, micromodules, reed contacts or the like, and modified housings are illustrated in Figs. 2, 2a, 2b; 3, 3a, 3b; 4, 4a, 4b; not shown. In cold press soldering, a foil of ductile metal, e.g. Cu, Ni, A1 or Sn may be inserted between the cap flange and support plate 1, as an interconnecting medium where mechanical deformation is to be reduced.
Patent GB-1365880-A (GB)
Title: Vehicle ignition systems
IPC: F02P3/04
Filed: 1970-11-17
Abstract: 1365880 Ignition systems JOSEPH LUCAS (INDUSTRIES) Ltd 4 Nov 1971 [17 Nov 1970] 54570/70 Heading FiB A conversion kit for an ignition system comprises a plate 31 adapted for connection to a contact breaker housing, a pair of windings 19 connected to the plate, a control device 28, adapted for connection to an engine driven shaft and incorporating magnetic means 29 which when the plate and control device are in position couple the windings magnetically whenever a spark is required and an electronic control circuit of which the windings form part, the electronic control circuit having terminals for connecting the circuit between the battery of a vehicle and the primary winding of the ignition coil (not shown) to replace the contact breaker and being designed to interrupt current flow in the primary winding and so produce a spark each time the windings are magnetically coupled. The electronic circuit comprises a printed circuit board 13 and includes a fixed frequency oscillator, an electronic switch and control means coupling the oscillator to the switch whereby the oscillator controls conduction of the switch. The oscillator may be permanently coupled to the control means and the windings form part of the oscillator so that the oscillator operates only when the windings are magnetically coupled. Alternatively the oscillator may operate permanently in use and the windings couple the oscillator to the control means when a spark is required. The plate 31 is adapted for connection to a conventional vacuum advance unit 30.
Patent GB-1485368-A (GB)
Title: Coating metal surfaces with siloxane-polyester resins
IPC: C09D167/00
Filed: 1974-11-20
Abstract: 1485368 Coating metal surfaces with siloxanepolyester resins DOW CORNING Ltd 20 Nov 1974 [24 Nov 1973] 54639/73 Headings C3T and C3R A process for coating a metal surface, e.g. of Al or steel, comprises applying thereto a composition comprising a siloxane-polyester resin which has been prepared by reacting (A) from 20-80% wt. of an organosiloxane having the general formula wherein R represents a methyl or ethyl radical, R<SP>1</SP> represents a phenyl or C 2 -C 12  alkyl radical, R<SP>11</SP> represents a methyl or phenyl radical, x is 2-6, y is 1-6 and x+y is 4-8, and (B) from 80-20% wt. of a polyester having on average at least one free hydroxyl group per molecule and prepared from (i) at least one aromatic dicarboxylic acid selected from phthalic, isophthalic and terephthalic acids or an anhydride thereof, and (ii) at least one di- or poly-hydric alcohol having from 2-6 carbon atoms, the percentages being based on the total weight of (A) and (B), and thereafter curing the composition. The polyester may also include less than 20% wt. of a saturated aliphatic dicarboxylic acid, e.g. adipic acid, based on the weight of the polyester. The reaction of (A) and (B) may be carried out in the presence of an organic solvent and a catalyst, e.g. a titanium or zirconium alkoxide. The resulting resins can be used either alone or with various additives, e.g. driers, solvents or pigments. In the example a polyester-polysiloxane resin is prepared by reacting a polysiloxane prepared by the hydrolysis/alcoholysis reaction of a mixture of dimethyldichlorosilane and methylphenyldichlorisilane with water and methyl alcohol followed by condensation of the hydrolysate, with a trimethylolpropane/isophthalic acid polyester in the presence of tetraisopropyl titanate as catalyst and "Cellosolve acetate" (Registered Trade Mark). The resulting resin solution is cured to a thin flexible film on an aluminium panel by heating.
Patent GB-1449512-A (GB)
Title: Disc for a disc brake
IPC: F16D65/12
Filed: 1973-11-29
Abstract: 1449512 Brake discs; cooling brakes PONTA-MOUSSON SA 29 Nov 1973 [15 Dec 1972] 55453/73 Heading F2E A brake disc comprises two plates 1, 2 interconnected by a plurality of bands 3<SP>a</SP>, 3<SP>b</SP>, 3<SP>c</SP> of cross-members 3, the cross-members 3 of each band being substantially evenly spaced apart. In the embodiment of Figs. 1, 2, there are three concentric bands 3<SP>a</SP>, 3<SP>b</SP>, 3<SP>c</SP> of circularsection cross-members 3 with the cross-members of the centre band 3<SP>b</SP> being staggered in relation to the cross-members of the other bands 3<SP>a</SP>, 3<SP>c</SP>, and the spacing between adjacent cross-members 3 of each or any two bands being of the order of magnitude of their mean cross-sectional dimension. The plate 1 is extended internally by a radial flange 4 of increased thickness in which are provided apertures 5 for fixing the disc to a hub or other member to be braked. The cross-members 3 act to assist cooling of the disc during braking by providing an increased surface area and by producing a swirling flow of air. In the embodiment of Figs. 3, 4 (not shown) the second plate 2 is also extended inwardly by a flange (6) which has the same thickness as cylindrical cross-members (7) which interconnect the two flanges in the region of each fixing aperture (5) which also extends through the cross-member (7) and the second plate (2). In modifications the cross-members may be hexagonal or square or have an oblique direction with respect to the axis of the disc. Bands of cross-members may be evenly spaced apart in the radial direction, with the cross-members of different bands having different sections.
Patent GB-1366942-A (GB)
Title: Drop forging press having an automatic workpiece conveying system
IPC: B21J13/08
Filed: 1971-12-01
Abstract: 1366942 Forging EUMUCO AG FUR MASCHINENBAU 1 Dec 1971 [11 Dec 1970] 55844/71 Heading B3H A forging press has an automatic workpiece conveying system composed of a pair of parallel beams 16, 17, Fig. 3, suspended from a drive mechanism above the lower die 10 to prevent scale and dirt fouling the mechanism. The beams are suspended on arms 25, 26 which comprises piston-cylinder units 29, 31 universally pivoted on transverse beams 32. The units 29, 31 are normally pneumatically pressurized against a spring force but the pressure is released to allow raising of the beams 16, 17 for die changing. The conveying system is driven from a motor 12 through bevel gearing (44), (45), Fig. 6 (not shown), to cranks (18), (38). The crank 18, Fig. 1, forms part of a linkage 19-24 which effects longitudinal reciprocation of the beams 16, 17 and the other crank 38, Fig. 2, forms part of a separate linkage 39-42 to effect the inward, outward, raising and lowering movements of the beams. The linkages are connected to similar linkages at the other side of the press by a shaft 15 and by the beams 16, 17. The longitudinal reciprocation is limited by a pair of straps 27, 28. The linkages are alternately operative and the linkage driven by the crank 38, Fig. 2, serves the reciprocate a rack 34 inside each of the beams 32 to rotate a gear 47, Fig. 3, which operates through linkage 48-51 to open and close the beams 16, 17. The racks can be locked in their end position when the workpieces are clamped by pneumatic cylinders 35. A further set of suspension arms (52), Fig. 5 (not shown), may be provided at one side of the press to ensure parallel movement of the beams. In a second embodiment, Figs. 9 and 10 (not shown), the suspension arms (25), (26) are pivoted on a slide (55) guided on horizontal rods (58). The ends of the rods (58) are in turn guided on vertical rods (59). The reciprocation, opening and closing, and raising and lowering of the beams (15), (16) is effected by hydraulic piston-cylinder units (60)-(65).
Patent GB-1185738-A (GB)
Title: Vehicle Suspensions
Inventor: KING CHARLES SPENCER
IPC: B60G17/044
Filed: 1967-12-08
Abstract: 1,185,738. Levelling device. ROVER CO Ltd. 10 March, 1969 [8 Dec., 1967], No. 55909/67. Heading B7D. In a vehicle having a suspension comprising a beam axle 2 connected to the vehicle chassis frame by springs 4, a single levelling strut 10 acts between the axle and the chassis frame. In the embodiment shown the springs are coil springs and vibration dampers 5 act between the chasis frame and the axle. The strut is of the self-levelling type and extends at an angle of 35 degrees to the horizontal from a pivot point on a bracket 11 upstanding from a frame cross-member 7 to a pivot at the apex of an A-frame 6 at the mid-point of the axle, the A-frame also being pivoted to the member 7.
Patent GB-1270238-A (GB)
Title: Improvements relating to cooling systems for internal combustion engines
IPC: F28F9/02
Filed: 1970-11-26
Abstract: 1,270,238. Cooling I.C. engines. DAIMLERBENZ A.G. 26 Nov., 1970 [27 Nov., 1969], No. 56256/70. Headings F4S and F4U. In a cooling system for an internal combustion engine where the engine 10 is connected by a cooling-water feed-pipe 11 to the inlet-side header 12 of a cross-flow radiator 13 and, through a cooling-water pump 14, to the outletside header 16 by a return pipe 15, the header 16 is divided by a vertical partition 17 into a watercollecting chamber 18 and an air-separation chamber 19, the chamber 19 communicating with chamber 18 through an opening 24. At the upper end 20 of the chamber 19 is a combined pressure-relief and breather valve 21. The connection 22 for filling the system with water opens into the inlet-side header 12.
Patent GB-1354950-A (GB)
Title: Process for recovering pure maleic anhydride from crude maleic anhydride
IPC: C07C51/573
Filed: 1971-12-03
Abstract: 1354950 Purifying maleic anhydride VEBACHEMTE AG and METALLGESELLSCHAFT AG 3 Dec 1971 [12 Dec 1970] 56280/71 Heading C2C  Crude maleic anhydride, containing maleic acid and other organic impurities and obtained, for example, by oxidation of benzene or a C 4  hydrocarbon, condensation of the reaction gases to give a first fraction of maleic anhydride and dehydration of the remaining gases to give a second fraction of anhydride, is purified by a continuous process comprising (1) decomposing the maleic acid present in a mixture of crude maleic anhydride and a water-azeotroping agent (e.g. a xylene) by heat into maleic anhydride and water and separating off the water and lower-boiling organic constituents of the crude feed to leave an impure maleic anhydride, (2) distilling the latter to remove the residual water-azeotroping agent overhead and (3) distilling the bottoms product of step (2) to remove the pure maleic anhydride overhead. It is preferred to operate with a higher absolute pressure in step (1) (e.g. 100 mm. Hg. to atmospheric) than in steps (2) and (3) (e.g. 60 to 500 mm. Hg.) and the first step may be effected under superatmospheric pressure. Maleic anhydride contained in the residue from the third step is conveniently recovered by distillation and recycled to step (1) or step (2). Step (1) may be carried out in a cascade comprising two or more stages.
Patent GB-1390700-A (GB)
Title: Omega-amino-substituted beta-alkoxy-carboxylic esters and their preparation
IPC: C07C227/00
Filed: 1973-12-06
Abstract: 1390700 # - Amino - S - alkoxycarboxylic acid esters; caprolactam STAMICARBON BV 6 Dec 1973 [8 Dec 1972] 56529/73 Heading C2C Novel compounds of Formula I wherein n is an integer of 1-5, the two R groups, which may be the same or different, represent alkyl or cycloalkyl groups each containing up to 10 carbon atoms and R 1  and R 2 , which may be the same or different, represent hydrogen atoms or alkyl or cycloalkyl groups of up to 10 carbon atoms, are prepared by hydrogenating in the liquid phase the corresponding # - cyano - # - alkoxycarboxylic acid ester of formula The hydrogenation is preferably effected at 70‹ to 150‹ C. in the presence of ammonia. Catalysts specified are Raney-Ni, Raney-Co, Pt and Pd. The use of a solvent is optional. The examples describe the preparation of # - amino - # - methoxy - pentanecarboxylic acid methyl ester and #-amino-#-methoxyhexanecarboxylic acid methyl ester. The former is converted to #-methoxy-#-caprolactam by heating.
Patent GB-1212750-A (GB)
Title: Improvements in and relating to the manufacture of porous materials
IPC: D04H1/645
Filed: 1968-11-29
Abstract: 1,212,750. Treating textiles. KALLE A.G. 29 Nov., 1968 [30 Nov., 1967], No. 56737/68. Addition to 1,144,110. Headings D1L and D1P. In a process in which an open-pore material of fibrous or foam structure which is flexible, compressible and resilient, is impregnated with a solution of, or with a solution for the production of, or with a dispersion of a polymer substance, which substance can by treatment by means of a precipitating agent or by heat, be caused to undergo solidification over a period in a manner such that when, within this period such an open-pore material impregnated therewith is subjected to compression followed by removal of the pressure, the polymer substance is caused to deposit within the pores of the material in the form of strings, threads or fibres spanning the pores, and the impregnated material is processed accordingly to produce such a deposit, the compression is applied by means of a vibrator and the impregnated material is passed between two vibrator elements of which one is excited to oscillate at 10-500 oscillations per second perpendicular to the surface and the other has a flexible resilient surface so that the surface of the material directed towards the excited element is maintained in continuous contact therewith. The vibrator element which is excited may have a non-flexible, non-resilient surface and one or both vibrator elements may be heated, the flexible resilient surface of the element producing counter pressure consisting of a heat resistant material, e.g. slag wool, steel wool or glass wool. When a rotary element such as a roller with flexible resilient surface is used as the element exerting counterpressure, the rotational speed thereof is preferably the same as the travelling speed of a porous web of material drawn through the vibrator. In Fig. 1, a web of porous material is passed from a role 1 through impregnation bath 2 containing polymer solution or dispersion 3, excess solution or dispersion is removed by rollers 4, the material is then passed through coagulation bath 5 containing liquid 6, excess coagulation liquid is removed by rollers 7 and the material is then passed to vibrator jack 8, the vibrating element 8a of which is supported on rubber buffers 10, roller 11 having a flexible resilient surface being driven by means 11a connected to driving motor 12, and is then passed through drying chamber 13 and rewound into roll 14.
Patent GB-1283702-A (GB)
Title: Junction box
Inventor: DINAN LEONARD WILLIAM
IPC: H02G3/08
Filed: 1968-12-04
Abstract: 1283702 Junction boxes HADEN ELECTRICAL Ltd 2 Dec 1969 [4 Dec 1968] 57680/68 Heading H2E A metal or plastics junction box 1, having an octagonal side wall 2, and being open at one end 3 and closed at the other by an end wall 4 which comprises eight substantially trapezoid panels 5 which converge to terminate in a central circular panel 6, is provided with knock-out discs 7 on side and end walls and a removable flange 8 which may be secured to either the open or the closed end of the box.
Patent GB-1222470-A (GB)
Title: Typewriter
IPC: B41J23/08
Filed: 1969-11-27
Abstract: 1,222,470. Typewriters. INTERNATIONAL BUSINESS MACHINES CORP. 27 Nov., 1969 [6 Dec., 1968], No. 57985/69. Heading B6F. Power operated impression and selection.-A power operated typewriter has a normally engaged releasable coupling in the drive to the impression mechanism, which coupling is disengaged after part rotation when a key other than a character key is operated, so that an impression does not occur. In the particular embodiment, a typewriter employing a truncated spherical type-head is described, a cam (19, Fig. 2) on a shaft 18 causing the type-head to swing for impression. The shaft 18 is driven by a continuously rotating power shaft 15 via a normally disengaged, selectively engageable 180-degree cycle clutch 14, intermediate gears 17, 17d and 17c, and the normally engaged releasable coupling 40. The clutch 14 additionally drives the filter shaft 21 via intermediate gears 17, 17a and 17b. Depression of a character key, e.g. 22, causes its respective code-combination bar or interposer 30 to be reciprocated by the filter shaft 21. Each character code combination bar 30 carries a tab 36 which displaces a print cycle select bail 35. Displacement of the bail 35 causes, via linkages 37, 37a, 37b and 37c, a pivoted bell-crank lever or stop 50 to move to the broken line position illustrated, Fig. 1, so that the coupling 40 completes a rotation and impression takes place. Depression of a non-character key, e.g. line feed key (29, Fig. 3), causes the associated codecombination bar (38) without a tab 36 to be reciprocated by the filter bar 21. This results in the stop 50 remaining in position, so that it contacts a control arm 51 of the coupling 40 after part rotation thereof, whereby the coupling is disengaged and no impression takes place. Line feed (Fig. 3).-The line feed mechanism (60) employs a feed pawl (61) that is engageable with a ratchet (62) connected with the platen (12). Clockwise rotation of a bellcrank (63) brings pawl (61) into engagement with the ratchet to drive it clockwise until the pawl encounters a fixed stop (64). Depression of line space key (29) causes its code combination bar or interposer (38) to move the pawl (61) via linkages and levers (65 to 68). Word spacing (Fig. 4) is under the control of an escapement mechanism (70) which includes a pawl (71) pivotally carried by a stud (73) on the carrier 13, Fig. 1. A torque bar (75), extending across the typewriter engages a downwardly extending tab (76) of the escapement pawl (71). A clock-spring (not illustrated) urges the carrier to the right, motion being resisted by the pawl. A cam (96) on the filter shaft 21 operates via a bell-crank lever (90) and tie rod (95), a trigger assembly (80) which pivots the torque bar (75) about its axis to lift the pawl (71) from the teeth of an escapement rack 77.
Patent GB-1494198-A (GB)
Title: Reducing emission of hydrogen sulphide from hot mixtures containing sulphur and bitumen
IPC: C01B17/04
Filed: 1973-12-17
Abstract: 1494198 Bitumen/sulphur mixtures SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 16 Dec 1974 [17 Dec 1973] 58278/73 Heading C3N A process for preparing a mixture of sulphur and bitumen comprises mixing bitumen with elemental sulphur at a temperature, which is an elevated temperature but which is below 175 C. in the presence of a hydrogen sulphide suppressant which is a free radical inhibitor or the reducing component of a redox catalyst system or a mixture thereof. Suitable free radical inhibitors are tetraalkylthiuram disulphides, e.g. tetramethylthiuramdisulphide, zinc dialkyl dithiocarbamates, e.g. zinc diethyldithiocarbamate, diphenyl guanidine, hydroquinone, p-benzoquinone, diphenyl picryhydrazyl and diphenylamine. Suitable reducing components of redox catalyst systems are iodine, copper salts, e.g. CuCo 3  and copper oxides, iron salts and iron oxides, e.g. Fe 2 S 3 , FeS, FeCl 3 .6H 2 O, FeCl 2 .4H 2 O and Fe 2 (SO 4 ) 3 , and cobalt oxides. Mixtures specified are of CuCo 3  and diphenylamine. Specific examples use an iodine/KI mixture and a ZnO/stearic acid/diphenylguanidine. The amount of suppressant used is suitably 0À001%- 5% by weight of the final mixture. It is preferred to add the suppressant to the bitumen or when compositions containing aggregate, e.g. sand, are required, to the aggregate or mixture of bitumen and aggregate. In the specific examples the mixture is mixed at a temperature of 143 C. or 150 C.
Patent GB-1384554-A (GB)
Title: Opti'l contact printing machines
IPC: G03B27/73
Filed: 1971-12-15
Abstract: 1384554 Program control of printing ETABS ANDRE DEBRIE 15 Dec 1971 [16 Dec 1970] 58303/71 Heading G3N The spectral composition of a light beam used for contact printing using the three colour additive principle is changed automatically under programme control frame by frame in synchronism with the film to be printed to obtain colour effects. A notch in the film indicating a change of sequence, is read by an index feeler in unit Mo, which after a delay provided by Ro, corresponding to passage of the film notch to the projection aperture operates, via a bi-stable unit Bo, an electromagnet 10 which, between frames, impulsively sets the symmetrically disposed shutter members 3, 3' of each of three flux modulators to positions derived from binary information stored on a tape read by reader L, the light from an incandescent or halogen lamp having been split by a mirror or filtering foil system into red, green and blue components passing through the respective flux modulators, the resultant beams when recombined illuminating the film to be printed. Control circuit for shutter positions, Fig. 1. The signal from bi-stable unit Bo also, via pulse emitter Eo and spacing selector So enables, in succession, the storage in memories Ml, M2, M3 corresponding to the primary colours, of flux information derived from the tape via reader L. D.A. converters C1, C2, C3 provide an analogue signal via amplifiers Al and A1" to D.C. motor 16 driving a cam 18, Fig. 3 to an angular position corresponding to the next desired shutter setting, an actual position signal from motor driven potentiometer 21 via amplifier A<SP>1</SP>, of unit gain for temperature compensation being combined with the signal from A 1  for the position control. Potentiometer 23 is set in dependence on the chromatic response characteristics of the printing film. The information in the memories M 1 , M 2 , M 3  is cancelled after a predetermined time by a circuit (not shown). The tape is advanced under control of impulses from unit Bo. Flux modulators, Fig. 3, see also Fig. 2 (not shown). A housing 1 with aligned apertures (2), 2<SP>1</SP> through which light passes contains shutters 3, 3<SP>1</SP> geared together by gear-wheels 6<SP>1</SP>, 6, for simultaneous movement in opposite rotational senses. Rotation of the shaft (17) of motor 16 to its programmed position, via cam 18, and levers 14, 13 sets the angular position of a line joining rollers 15, 15<SP>1</SP> at a corresponding value, without moving the shutters, which are held by braking arrangement (7, 9), the former a disc on shaft (4) supporting gear-wheel 6. Upon energization of electromagnet 10, rollers 15, 15<SP>1</SP> are drawn by collar (11) into re-entrant faces of cam 5 on shaft (4) causing the latter to impulsively rotate until cam 5 is aligned with rollers 15, 15<SP>1</SP>, corresponding to the programmed shutter opening. The electromagnets of all three flux modulators operate simultaneously. Integrated circuit construction is used.