baber/WOPTO huggingface dataset:
Patent GB-1427579-A (GB)
Title: Manufacutre of printed circuits
IPC: B32B15/08
Filed: 1973-07-12
Abstract: 1427579 Printed circuits KOLLMORGEN CORP 12 July 1973 [11 July 1972] 33231/73 Heading H1R Printed circuits are produced by (1) coating the surface of a transfer base material with a layer of a liquid resin composition which is hardenable by polymerization or cross-linking, (2) partially hardening the composition to a degree which allows storing the coated transfer base material without adjacent surfaces adhering to each other, (3) subsequently bringing the partially hardened coated surface of the transfer base material into close contact with the surface of a permanent support material, (4) completing the hardening of the coating layer, (5) removing the transfer base material, (6) treating the resinous coating layer to be microporous and/or wettable and (7) forming the metal conductor pattern on the resinous surface. The transfer base may be a sheet, film or foil of plastics-or metal coated paper, polyethylene, polyvinyl chloride, polyvinyl fluoride, polyalkylene terephthalate, polytetrafluoroethylene, aluminium, copper or tin. Preferred resin compositions comprise phenolics, polyepoxides, melamines, polyacrylics, polyacrylates, polyesters, nitrile rubber, polystyrene and mixtures thereof. The permanent support may itself be hardened simultaneously with the resin layer before removal of the transfer base. Microporosity and wettability may be produced by treating with dimethyl formamide, dimethyl sulphoxide, or toluene-water mixture, then with chloric acid-sulphuric acid and then with a reducing agent, e.g. sodium bisulphite. Alternatively the resin composition may contain particles which are degraded on treatment with chromic acid or permanganate solution. The composition may also contain particles of a material catalytic to the electroless deposition of metal, e.g. palladium, gold, platinum, copper, palladium chloride, gold chloride, platinum chloride, copper oxide and stannous chloride. In a typical example a layer of rubber composition comprising a nitrile rubber solid, nitrile rubber liquid, thermosetting phenolic resin, epoxy resin and fumed silica is roller coated on to polyethylene coated paper, dried and sheets of the resulting product are stacked with a plurality of phenolic-paper or glass-epoxy prepreg sheets. The composite is laminated and panels cut from the laminate processed into printed circuit boards by (1) producing any required hole pattern, (2) peeling off the transfer base, (3) activating with potassium dichromate-sulphuric acid-water mixture, (4) sensitizing with SnCl 2 -hydrochloric acid-water mixture followed by treatment with PdCl 2 - hydrochloric acid-water mixture, (5) drying and applying a resist and (6) electrolessly depositing copper, stripping the resist and curing the resulting circuit board.
Patent GB-661040-A (GB)
Title: Disc tiller
IPC: A01B21/08
Filed: 1948-12-24
Abstract: 661,040. Disc-harrows. JOHNSON, H. M. Dec. 24, 1948, No. 33236/48. Class 6(i) A disc-harrow, of the type having a single front wheel 38 and a pair of rear wheels 79 and 90, and having a main frame 10, 11 extending obliquely between the front and rear wheels, is characterized in that all the wheels can be turned to run parallel to the main frame for transport. The frame is provided with a hitch B having one limb 15 adjustably connected to a plate 13 hinged to the centre of the tubular frame member 11 and having a second limb 22 pivoted to a front bracket 23. The front wheel 38 is connected by links 20, 25, 28 to the hitch B so that the front wheel swings with the towing tractor. The rear end of the member 11 is supported on a rear carriage D. The foremost wheel 90 of this carriage, Fig. 7, is mounted on a'curved bar 106 slidably mounted in the carriage D so that the wheel may be swung round by the aid of a tommy-bar 120. The rear wheel 79 is carried on a vertical axle 80 to which is fixed a lever 85 the end of which is connected by a rod 84 to either one of a pair of lugs 86, 88 corresponding to operative and transport positions. The front wheel 38, Fig. 4 is mounted on a vertical axle 37 in a bearing-block 35, pivoted at 36 to the bracket 23 on the main frame. The member 35 may be swung around its Divot 36 until an aperture in either of two lugs 53, 41 engages with a bolt 42 passing through the bracket 23. A retractable sprag supports this end of the frame while the position of the wheel is being changed. The discs are arranged in gangs C separately mounted between brackets 143 pivoted on the frame 11 and urged into ground engagement by springs 148. The gangs can yield individually on encountering obstructions. The tubular member 11 is mounted on a shaft 10 and can be rotated relatively to it to raise all the gangs together under the action of a half-revolution clutch 91 on the axle of the wheel 90. This axle also carries a sprocket 99 for driving seeding mechanism (not shown). Manual adjustment, of the gangs, in unison, is effected by a hand-wheel 98. The front wheel is vertically adjustable by a a hand-wheel 50.
Patent GB-656044-A (GB)
Title: Improvements in or relating to mass flow indicating apparatus
IPC: G01F1/76
Filed: 1948-12-24
Abstract: 656,044. Indicating flow electrically. NORMALAIR, Ltd., WIDGERY, W. M.,and SWAFFIELD, P. J. Dec. 24, 1948, No. 33257. [Class 40 (i)] Fluid flow indicating apparatus comprises a diaphragm d, Fig. 1, actuated on one side by pressure down - stream from e, and on the other side by pressure upstream from f, the diaphragm dividing a chamber c, b into two parts, one of which contains a device z for changing movements of the diaphragm into electrical variations. The diaphragm is preferably also acted on by opposing springs p, j, one of which is adjustable at q and limit-stops h may be provided. In a modification, Fig. 3, leaf-springs j, p are provided in place of helical springs. Specification 655,328, [Group XXXV], is referred to.
Patent GB-844425-A (GB)
Title: Improvements relating to motor vehicle body constructions
IPC: B62D33/067
Filed: 1958-10-17
Abstract: 844,425. Vehicle bodies. DAIMLER-BENZ A.G. Oct. 17, 1958 [Oct. 22, 1957], No. 33280/58. Class 108(1). A goods vehicle has a cab 11 supported on a column 12 above the loading surface 10 and at least the two side surfaces of the cab taper downwardly. The access door 15 and the side windows may be pivoted about their upper edges and the central driver's seat 18 may be forward of the two passenger seats 19. A similar construction is shown for a passenger vehicle with the side, and rear windows and windscreen are sloping outwardly at the top.
Patent GB-1061663-A (GB)
Title: Improvements relating to bumper arrangements at the ends of vehicles
IPC: B60R19/02
Filed: 1965-08-04
Abstract: 1,061,663. Vehicle bumpers. DAIMLERBENZ A.G. Aug. 4, 1965 [Aug. 4, 1964], No. 33393/65. Heading B7J. A double-walled approximately cylindrical thin sheet-metal shock-absorber indicated by 8, (9), (10) or (11), Fig. 2a, and Figs. 2b, 2c and 2d (not shown), is in one of several ways mounted at one end of a supporting member 17, each separate shock-absorber partly surrounding and/or forming a unit with a lamp 14 or (19) and so on and not being directly connected with either a bumper 12 or a rubbing strip 13 forming a corner 13a of a motor vehicle. The shockabsorber (9) has a portion (18) which forms the vehicle corner and the absorber (11) has a portion (26) of hard foamed material. Angular absorbers (27), Fig. 3 (not shown), or U-shaped absorbers (28), (32) and rubbing strips (30) and bumpers (31) may be provided, Figs. 4-6 (not shown). In Fig. 7 (not shown) the shockabsorbers (33) are merely two arms at rightangles.
Patent GB-955348-A (GB)
Title: Polypropylene/wax compositions
Inventor: SARGENT EDWARD HENRY GEORGE
IPC: C08L23/12
Filed: 1962-08-30
Abstract: An electrical insulating composition comprises a synthetic hydrocarbon wax having a melting point of at least 90 DEG C., liquid polypropylene of molecular weight from 800 to 1,120 and optionally petrolatum.  The synthetic hydrocarbon wax may be a Fischer-Tropsch wax, high pressure polyethylene of molecular weight from 700 to 3,000, or tail end wax (molecular weight 600) from the low pressure polymerization of ethylene. Other optional ingredients are oxidation inhibitors such as di-t-butyl- and di-octyl-p-phenylene diamine, p-t-butyl cresol and methylene-bis-p-t-butyl cresol; anti-gassing agents such as wood resin and resins of the indene or cyclopentadiene type; and sequestering agents such as salicylamide. The compositions find application as cable impregnants and in condensers, amplifiers and radio and television receivers.
Patent GB-1222850-A (GB)
Title: Improvements in or relating to suspensions for vehicles
Inventor: BRANDO GERARD
IPC: B60G17/02
Filed: 1968-07-12
Abstract: 1,222,850. Vehicle suspensions. G. BRANDO. 12 July, 1968 [26 July, 1967; 7 May, 1968], No. 33449/68. Heading B7D. An independent vehicle suspension comprises a coiled spring 14 mounted between a bracket 15 suspended from a chassis member 2 and a triangular link plate 7, the plate being pivotally suspended from a transverse shaft 1 attached to the chassis and also carrying a stub axle 9 for mounting a road wheel, the attachment points of the plate to the chassis and of the spring and wheel to the plate lying at the apices of an equilateral triangle. The plate may be journalled on shaft 1 using self-lubricating or roller bearing, and the stub axle be screwed to the plate as at 10. The spring is fixed to a block 17 attached to bracket 15 and a further block 13 pivoted to the plate 7, with that portion 14<SP>1</SP> of the spring having closely spaced turns compared to the remainder of the spring. The chassis may be a sub-frame adapted to be attached to the vehicle. An hydraulic shock absorber may be mounted within the spring with one end pivoted to the plate and the other end fixed to the bracket suspended from the chassis member. In the embodiment of Fig. 8 the plate is shown transverse with respect to the vehicle with wheel R<SP>2</SP> being connected to the plate by a shaft 29 and a support 30.
Patent GB-457419-A (GB)
Title: Improvements in valve bags
IPC: B65D30/24
Filed: 1935-12-03
Abstract: 457,419. Valve bags. DUBOIS, A., 12<bis>, Rue des Marronniers, Paris. Dec. 3, 1935, Nos. 33455 and 33456. Convention dates, Dec. 4, 1934 and March 18, 1935. [Class 94 (ii)] A valve bag is characterized in that when it is practically full there is automatically formed a baffle in the filling valve by the withdrawal of the filling tube, the opening through the valve assuming a sinuous course. When the bag is empty, upon insertion of the filling tube, the straight opening through the valve is reestablished. The valve 6 may be provided, by stapling &c., with a bendable lug 5, creased &c. at 7 and urged by a spring &c. 10 to position itself beneath the valve tube. An extension 9 of the lug 5 may be positioned in the bag closure or may be slitted to embrace the bottom seam if such is sewn. Alternatively, a lug 21 may be provided with a tongue 28, hinged at 23, which is caught by a hook &c. 26 on the filling tube 24, when the latter is withdrawn, to position itself as shown in Fig. 9. Gum may be supplied automatically to the filling tube 24, which may be flattened towards its delivery end, so that an adhesive sealing of the valve is effected. The lug 21 may be formed of two pieces of material, only one of which is provided with the tongue 28.
Patent GB-413192-A (GB)
Title: A method and device for distributing coal
IPC: F24B15/04
Filed: 1933-11-29
Abstract: 413,192. Coal containers. VELDHUIZEN, J., 435, Heerengracht, Amsterdam. Nov. 29, 1933, No. 33511. Convention date, Aug. 9. [Class 66.] Receptacles in which coal can be delivered are provided with removable spouts (shown in chain lines) which can be slid on to enable the containers to be used as scuttles. Flat lids can also be provided.
Patent GB-1330928-A (GB)
Title: Magnetic tape cassette
IPC: G11B23/087
Filed: 1971-07-16
Abstract: 1330928 Magnetic tape cassette AGFAGEVAERT AG 16 July 1971 [24 July 1970] 33526/71 Heading G5R A magnetic tape cassette is characterized in that it includes a box-shaped head-screening structure the two side walls of the structure including slots 6, Fig. 3, through which the tape 6 may pass. The structure may be formed from a stamping, such as that shown in Fig. 2, with weakened portions 11 to allow the parts 8 to be bent outwards, to facilitate tape loading. A further example of a possible weakened portion is illustrated (Fig. 4, not shown).
Patent GB-1123598-A (GB)
Title: Improvements in or relating to vehicle suspension units
Inventor: AVNER DAVID ALAN
IPC: F16F9/32
Filed: 1965-08-05
Abstract: 1,123,598. Seaming. GIRLING Ltd. 1 Aug., 1966 [5 Aug., 1965], No. 33559/65. Heading B3J. [Also in Division F2] In a motor vehicle suspension unit comprising a valved piston 12 which works in an hydraulic cylinder 14 with a gas space 22 and has a rod 16 which extends through a seal 20 and an end cap 18 at one end of the cylinder, and a parallel gas spring 26 formed by a flexible and inextensible tubular diaphragm 32, a cup 28 welded to the free end of the piston-rod 16, and a cylindrical guard tube 30, the cup 28, tube 30 and diaphragm 32 are sealingly secured together by forming an external groove 42, of rectangular cross-section and having sharply defined shoulders in the cup 28 and upsetting the tube 30 to form a corresponding circumferential projection 44 which extends towards the groove 42 to define a convergent gap in which the diaphragm is held compressed. In a method of forming the sealed joint the cup (28), diaphragm (32), and tube (30) are loosely assembled and a plurality of rollers (48), Fig. 3 (not shown), profiled to have a central convex portion, are pressed against the outside of the tube (30) opposite the groove (42) while the tubular assembly (28), (38), (30) is rotated, the rollers (48) being forced inwardly stepwise between successive revolutions of work. The rollers may be replaced by a tool with jaws for upsetting the wall of the tube. The shoulders of the side walls of the groove 42 are slightly chamfered so as not to cut into the material of the diaphragm. The cup 28 is provided with a connection, not shown, for the introduction and withdrawal of compressed fluid. The tube 30 may be formed with a groove, a corresponding projection being formed on the outer surface of the cup 28. A similar type of connection may be used to connect the inner end of the diaphragm 32 to the upper end of the cylinder 14 instead of the restraining band, as shown.
Patent GB-947273-A (GB)
Title: A hydraulic turbine of the propellor type
Inventor: ROBOOK NICOLAY NICOLAEVICH
IPC: F03B3/14
Filed: 1962-08-31
Abstract: 947,273. Hydraulic turbines. KHARKOVSKY TURBINNY ZAVOD S. M. KIROV. Aug. 31, 1962, No. 33566/62. Heading FIT. In an hydraulic turbine of the Kaplan type, the rotor comprises a hub having a cavity in which are disposed the blade trunnions and the means by which they are connected to a piston which effects variation of the blade pitch, the cavity being filled with fluid for actuating the piston. In the embodiment shown, the blades 8 are secured to trunnions 5, the trunnions being connected by linkages 2 to the actuating piston 1a, these parts being disposed within a cavity 3 within the hub of the rotor. Fluid is supplied to one side of the piston through the duct A and to the other side of the piston through the annular passage formed between the duct A and a surrounding duct B. Fluid leaking through the trunnion bearing C is allowed to escape through radial grooves in the ends of the trunnions and through bores 6 into an inner cavity 9. From there the fluid passes through duct 10 to a cavity 11 within the rotor shaft.
Patent GB-428593-A (GB)
Title: Folder for rotary printing machines
IPC: B65H45/16
Filed: 1934-11-23
Abstract: 428,593. Paper - folding machines. MASCHINENFABRIK WINKLER, FALLERT, & CO. AKT.-GES., 36, Wylerring- strasse, Berne, Switzerland. Nov. 23, 1934, No. 33722. Convention date, Jan. 11. [Class 100 (i)] In a folder for rotary printing - machines having a folder - blade cylinder a and a cooperating folderjaw cylinder d, the newspaper product b tucked in by the folder - blade c, with its sheet-middle in advance, in front of the folder-jaw e, is first engaged by the tongues k of a folding-plate f fastened on the front of and opening and closing with the folder-jaw e and preliminarily folded, and, after the folder-blade c has receded, is completely folded, in its entire length, by the subsequent closing of the jaw e, and by the pressing of tongues h of the folder-jaw e on the parts of the newspaper product intermediate between the tongues k of the folding-plate f. The front edge of the folder-blade c has tongues i which are transposed relatively to the tongues k of the folding-plate f, and the folder-blade is withdrawn before the folder-jaw e is completely closed.
Patent GB-837308-A (GB)
Title: Scale actuator for photographic printing machines
IPC: G03B27/58
Filed: 1956-11-05
Abstract: 837,308. Photographic printing apparatus. PADGETT, J. D. Nov. 5, 1956, No. 33734/56. Class 98(2) A step-and-repeat contact printing apparatus as described in U.S.A. Specification 2,713,294 and which comprises a printing frame 11 having a magnet bed 14, a rubber blanket 15 on which the sensitized plate 16 is laid, and scale members 20, 22 to position the negative 19 accurately over the sensitized plate 16, has means to move the scale member 20 relative to the scale member 22 comprising a pinion 45 which is insertable through a hole 44 in a retainer plate 37 which overlies the scale members, said pinion engaging teeth 28 on the scale member 20. The teeth 28 bear against a floating bar 32 which is located in a recess 31 in the bearing plate 29 and is urged against teeth 28 by a spring strip 36. The assembly is retained in position by the retainer plate 37 which is screwed to the end of the transverse scale member 22 and to the bearing plate 29.
Patent GB-493986-A (GB)
Title: Improvements in tubular radiators for unit air heaters
IPC: F28D1/053
Filed: 1937-12-07
Abstract: 493,986. Gilled tubes for heatexchangers. MATHER & PLATT, Ltd., and WHITELOCK, J. H. Dec. 7, 1937, No. 33802. [Class 64 (iii)] Heat-exchange tubes, e.g. for the radiators of unit air heaters, are provided with fins having interfitting stepped flanges, the part c of each fin being forced on to the part b of an adjacent fin so as to press the latter part into contact with the tube. In a modification, fins having flanges with three steps are applied to the tubes.
Patent GB-618711-A (GB)
Title: Improvements in machines for the thinning-out of beets
IPC: A01B41/04
Filed: 1946-11-14
Abstract: 618,711. Agricultural implements. KNUTZEN, I. Nov. 14, 1946, No. 33839. Convention date, Jan. 26, 1939. [Class 6 (i)] A saw-toothed cutting disc 3 for a gapping machine is provided with a cut-away part adjacent to which is mounted an adjustable sector 4 which can be set at a variable inclination to the plane of the disc to vary the degree of gapping. The inclination of the sector is variable by means of a screw 7.
Patent GB-1010882-A (GB)
Title: Improvements in and relating to x-ray targets
IPC: H01J35/10
Filed: 1964-08-19
Abstract: A rotary X-ray target comprises a disc-shaped core consisting of an alloy mainly of molybdenum with another metal or compound having a melting point above 2000  DEG C., and a layer mainly consisting of tungsten applied on the area exposed to electron-impact.  The core preferably comprises Mo alloyed with 0.5-50%, e.g. 2-10%, of W, but alternatively the alloying addition may comprise Ta, Nb, Re or Os. Small additions of alkali silicates or stable oxides can also be used.  The layer exposed to electron impact may comprise pure W, or W alloyed with 30% Re, the core and layer being made by powder-metallurgical methods, either separately or together, with final shaping by rolling, stamping or forging.
Patent GB-1278868-A (GB)
Title: Improvements in or relating to chucks
Inventor: WEBSTER BENJAMIN CHESTER JR
IPC: B23B31/175
Filed: 1970-07-13
Abstract: 1278868 Chucks B C WEBSTER JNR 13 July 1970 [22 Oct 1969] 33887/70 Heading B3B In a chuck having a plurality of radially movable jaws 13 mounted on slide members 12 in the chuck body 10, means is provided to prevent canting of the jaw slides due to clearance and wear in the operating parts of the jaw mechanism when the jaws grippingly engage a workpiece. The means comprises a clamping plate 25 one mounted on each slide 12 and within the body 10 and carried by respective slide operating shoes 16. The shoes are operated by levers 19 and retained in the jaw slide by a bottom plate 12b and springs 21, 22 one at each end of the shoes. The clamping plate 25 engages the shoe by co-operation between "V" grooves 26, 27 and projections 28, 29, respectively, whereby when the lever 19 is actuated to cause the jaws to grip a workpiece and the jaw loading reaches a predetermined value, the spring 21 or 22 is depressed permitting slight displacement of the shoe 16 relatively to the plate 25 and the resultant wedging action between the V grooves and projections urges the jaw slides with the jaws thereon into abutment with the end plate of the chuck body, thereby maintaining the jaws in correct alignment with the chuck body. Alternative forms of clamping plate are shown in Figs. 4 and 6.
Patent GB-996383-A (GB)
Title: Improvements relating to hammers
IPC: B25D1/00
Filed: 1960-10-03
Abstract: 996,383. Hammers; handles. G. E. MARSHALL. Sept. 29, 1961 [Oct. 3, 1960], No. 33920/60. Headings B4C and B4K. The head 10 of a hammer comprises a solid block of rubber having a metal sleeve 11 set in it, the sleeve 11 having an internal screw-thread to co-operate with a screw-thread on the handle 13. The sleeve extends from end to end of a bore in the rubber block so that the handle can be reversed. The head 10 is moulded around the sleeve and vulcanized to it.
Patent GB-1481489-A (GB)
Title: Apparatus for compensating for unbalance of a rotating body
IPC: B23Q11/00
Filed: 1975-08-14
Abstract: 1481489 Balancing HOFFMANN GmbH Gebr [trading as HOFMANN KG MASCHINENFABRIK Gebr] 14 Aug 1975 [22 Aug 1974] 33956/75 Heading F2U [Also in Division B3] Apparatus for compensating for unbalance of a rotating body, such as a grinding wheel 3 comprises an annular container 5 fluid-tightly divided into compartments by fixed radial walls to which compartments fluid is supplied selectively. The container 5 may be equally divided into four compartments by the radial walls and closed by a cover 12 provided with four annular recesses 17 to 20 each with an arcuate slot opening into its associated compartment. When unbalance of the rotating body is signalled by an electronic measuring unit a balancing operation (which may be automatic) is carried out by opening the appropriate valve 28 to 31 to permit fluid (which may be the same as that used for grinding wheel cooling) to flow from a tank 25 to the appropriate nozzle 21 to 24 and compartment. After the grinding machine has been cut out and while the rotating body is slowing down, the fluid in the individual compartments flows out through openings 32.
Patent GB-480623-A (GB)
Title: Improvements relating to gas meters
IPC: G01F3/22
Filed: 1936-12-11
Abstract: 480,623. Gas meters. ALLGEMEINE ELEKTRICITATS-GES. Dec. 11, 1936, No. 34111. Convention date, Dec. 11, 1935. [Class 54] In a gas meter of the type in which a member 1 operated by the meter diaphragm 2 controls the movement of a lever 4 for reversing the valves as described in Specification 456,013, a stop member 5 attached rigidly or by a spring 6 to the member 1 engages a projection 41 on the lever 4 if the control member 1 and diaphragm 2, owing to the weight of the diaphragm, tend to move beyond the positions at which the valves are reversed.