baber/WOPTO huggingface dataset:
Patent GB-1166959-A (GB)
Title: An Improved Surface Covering
Inventor: DEKKER JOHN
IPC: B44C5/04
Filed: 1967-05-26
Abstract: 1,166,959. Coated flexible laminate. D. DEKKER Ltd. 22 May, 1968 [26 May, 1967], No. 24626 67. Heading B2E. [Also in Division B5] A flexible, composite, surface covering sheet material comprises a backing layer (I) of flexible sheet material e.g. polyvinyl chloride carrying a layer of adhesive on its exposed rear face, a front layer (3) of flexible sheet material e.g. polyvinyl chloride, and an intermediate layer (2) of a resiliently compressible sheet material e.g. polyurethane foam sandwiched between the backing layer and the front layer to constitute a filling, the backing layer and the front layer being of compatible heat-sealable material and being heat sealed along lines 4 serving to define tile areas within the sheet, the front layer remaining permanently tensioned by pressure exerted thereon by the intermediate layer as a result of compression of the interlayer during heatsealing of the layers. A strippable backing sheet e.g. of paper or plastics film may be applied to the backing layer. The filling material may be discontinuous or continuous at the he? seals and the heat seals preferably contain tear seals 5.
Patent GB-201796-A (GB)
Title: Improvements in or relating to belt controlling gear for cigarette machines
IPC: A24C5/39
Filed: 1922-09-11
Abstract: 201,796. United Cigarette Machine Co., Inc., (United Cigarette Machine Co., Ges.). Sept.. 11, 1922. Expanding pulley gearing for cigarette-making machines comprises a movable control arm 12 operated by auxiliary cam mechanism 14 for stopping and starting. Pulleys 4, 6, Fig. 2, are mounted upon driving and driven shafts 2, 5. The movable flanges 4<a>, 6<a> .are connected by arms 11, 12 to a sleeve formed as a nut on a screwed spindle 7 operated from a hand-wheel 10. The arm 12 is pivoted on the sleeve 13 and is normally held bv the cam 14 so that the flanges 4<a>, 6<a> are operated in unison to change the speed. The cam 14 is secured to a collar 14a upon the sleeve 13, which is restrained from any but partial-turning movements by spring pawls 15, 15<a>, Fig. 6, which pass through an arc-shaped slot 16 in the sleeve and engage teeth 7b on the spindle 7. The pawls 15, 15<a> have inclined ends 15<b> adapted upon engagement with the ends 16a of the slot to raise the pawls singly from engagement with the spindle 7. When the spindle 7, Fig. 6, is turned clockwise, the pawl 15 is raised and the spindle 7 turns without moving the cam 14, to change the speed. An opposite rotation carries the cam 14 with it, moving the flange 6<a> alone to disconnect. Reference has been directed by the Comptroller to Specification 189,972.
Patent GB-692336-A (GB)
Title: Improvements in arrangements for coupling electromagnetic wave-guides
IPC: H01P5/08
Filed: 1951-10-23
Abstract: 692,336. Wave-guides. SPERRY CORPORATION. Oct. 23, 1951 [Oct. 24, 1950], No. 24715/51. Class 40 (viii). A rectangular wave-guide 10 and a circular wave-guide 12 are coupled by two means, so arranged that, when a TE10 wave is transmitted along guide 10, the first coupling means introduces into guide 12 energy, the electric vector of which is parallel to that of the energy in guide 10, and the second coupling means introduces into guide 12 energy which is in phase quadrature with, and has its electric vector at right-angles to the energy introduced by the first coupling means. A circularlypolarized TE 11 wave is thus produced in the circular guide. In the arrangement shown, the first coupling means consists of a coaxial 15, or a twin wire line with dipoles 20 and 25 or coupling loops at each end. By placing these coupling means at right angles, this coupling device transmits energy to guide 12 which has its electric vector at right-angles to that in guide 10. Further, owing to the different wave velocity in the coaxial line, this energy differs in phase from that passing from guide 10 to 12 by a drect connection, as shown, and having its electric vector always parallel to that of the energy in guide 10. In order to match the coupling better, an intermediate section 40 of rectangular guide may be provided, and this may be joined to guide 10 by a matching portion 50. The parts 40 and 50 may be replaced by a single flared part having a rectangular aperture at one end and a circular at the other.
Patent GB-902792-A (GB)
Title: Improvements in or relating to apparatus for traversing members in fixed spatial relationship
Filed: 1958-07-31
Abstract: 902,792. Testing by beta-rays. BALDWIN INSTRUMENT CO. Ltd., and BROWN, A. W. July 30, 1959 [July 31, 1958; June 15, 1959], Nos. 24717/58 and 20354/59. Class 40 (3). [Also in Group XXX] Paper thickness is checked by traversing a beta-ray source 32 across the paper on one side and an ionization chamber 33 on the other. The invention is concerned with maintaining space between 32, 33 constant over a traverse of 20-30 feet, and is fully described in Group XXX.
Patent GB-283820-A (GB)
Title: Improvements in rim latches
IPC: E05C1/16
Filed: 1927-09-20
Abstract: 283,820. Parkes, S. R. Sept. 20, 1927. Addition to 264,975. Latches, sliding, for doors, of the kind described in the parent Specification are constructed so that the rod d' on which the latch spring D is mounted, forms the means for blocking the latch by abutting against a stud a<1> on the casing. The rod is rocked for locking or release by a member F pivoted on the stud a<1> and operated by a knob f<3> on the outside of the casing.
Patent GB-835269-A (GB)
Title: Improvements in or relating to mining machines
Inventor: SNYDER CLIFFORD H
IPC: E21C27/22
Filed: 1956-08-13
Abstract: 835,269. Mineral-mining machines. COLMOL CO. Aug. 13, 1956, No. 24766/56. Class 68(1) In order to permit of variation of the cross-section of a tunnel or gallery being driven by a mining machine by a plurality of rotary boring heads mounted at the leading end of the machine, some of the gear boxes of said heads are laterally movable by jacks and the driving means interconnecting the gear boxes to synchronize rotation of the heads is such as to permit of this movement. In a preferred embodiment eight gear boxes 12-17 are shown and the boxes are divided into an upper and a lower group that can slide in vertical ways at the front of the mobile chassis 1 of the machine. The lower group is raised and lowered by a jack 21 and the upper group is raised and lowered relative to the lower group by jacks 20 extending therebetween. The central pairs 12, 13 of gear boxes of each group are rigidly secuced together and the outer pairs 14, 16 or 15, 17 of gear boxes can be moved laterally of the machine by jacks 30. Motors 60, 63 mounted on the back of the central gear boxes of the upper and lower group drive a shaft 57 from which drives are taken through worm gearing 57, 53, 52, 54 and shafts 41, 42 extending through the upper and lower gear boxes to the boring heads. Scraper blades 71, 78 are mounted on the upper and lower gear boxes to clear the cusps left by the boring heads.
Patent GB-462310-A (GB)
Title: Improvements in and relating to welding or brazing of ferrous and non-ferrous metals and rods therefor
IPC: B23K35/02
Filed: 1935-09-05
Abstract: 462,310. Uniting by fusion ; brazing. TIBBENHAM, L. J. Sept. 5, 1935, No. 24773. [Class 83 (iv)] In welding or brazing ferrous or non-ferrous metals by torch methods, use is made of a homogeneous bronze welding or brazing rod or wire of which the superficial area per unit length is substantially greater, e.g. 20 per cent greater than the superficial area per unit length of a circular rod &c. of the same crosssectional area. The rod may be of substantially triangular cross-section and may consist of silicon bronze. Reference has been directed by the Comptroller to U.S.A. Specification 1,985,142.
Patent GB-871376-A (GB)
Title: Improvements in or relating to multi-colour reproduction methods and arrangements for use therein
IPC: H04N1/60
Filed: 1957-08-06
Abstract: 871,376. Multicolour reproduction methods. HEIL, R. Aug. 6, 1957 [Aug. 4, 1956], No. 24774/57. Class 40(3) In a system for the electronic negative-positive inversion of the voltages produced in scanning a photographic record of a multi-coloured picture adjustments are provided to compensate for deviations from a standard contrast path during the production of the records. A stepped grey scale is photographed with the picture to provide a grey scale negative. The relationship between the diversity steps of the positive and negative scales is shown in Fig. 3, in which the shaded portion indicates deviations from a standard contrast path PO due to variations in negative material, development time &c. The grey scale negative is clamped to a reciprocating table 1, Fig. 4, and is scanned by light from a lamp 3 via an optical system 4, 5 and 6. The emerging light is focused on a photo-cell 8 which produces a stepped voltage proportional to the density steps of the negative grey scale. The voltage is amplified 9 and modulates 10 a carrier produced by the oscillator 11. The modulated signal is further amplified 12 and demodulated 13 to provide a stepped X plate time base for the cathode ray tube 15. Additionally the modulated signal is applied to a negative-positive inverter 16 comprising distortion, addition and subtraction circuits which together produce an input-output characteristic similar to PO, and having a curvature which may be varied over a limited range. The energizing voltage, a function of same grey scale positive is amplified 17, demodulated 18 and applied to the Y plates of the C.R.T. and produces in conjunction with the time base voltage a series of light points as shown in Fig. 5. The horizontal lines indicate where the points should fall if the initial contrast curve was of the idealized form PO. The inverter distortion controls are adjusted to place the points on the lines whereby the inverter compensates for the deficiencies of the photographic record. For each colour record the inverter is adjusted to standardize the contrast path and is then inserted in the signal path of a colour scanning machine scanning the picture content of the record.
Patent GB-248483-A (GB)
Abstract: 248,483. Ropeways, Ltd., and Roe, E. Dec. 6, 1924. Rope railways. - The motion of railway cars 2 is accelerated, decelerated, or assisted by a motive effort transmitted to the upper peripheral parts of the wheels 2<c> by an endless belt or band 1 passing around pulleys 5, 6. Frictional contact with the wheels due to the weight of the belt is assisted by a supplemental load consisting of springs or of rollers 7 carried by links 8 from the axles of the pulleys. The driving pulley may be geared with the main rope drive. The system is shown in use at a ropeway station with movable shunt rail 3 as described in Specification 168,341.
Patent GB-1330358-A (GB)
Title: Character selecting device for a printing mechanism
IPC: B41J7/62
Filed: 1971-04-19
Abstract: 1330358 Selective printing ING C OLIVETTI & C SpA 19 April 1971 [25 March 1970] 24866/71 Heading B6F A type element is positioned for character selection by means of a plurality of cams such as 61, 63, 66, 68, Fig. I, mounted on respective shafts 71, 178, 204, 224, at least one of the cams being operative to move an adjacent cam and its shaft. As shown, cams 68, 66 and 63 are all operative to move adjacent cams through rollers such as 219, 204, 199, 173, 171 to perform aggregate motion of a roller 59. Each cam 61, 63, 66, 68 has a complementary cam 62, 64, 67, 69 respectively, acting in aggregate motion on a roller 60 to attain positive pivotal movement of a lever 58 which acts through a gear segment 51 to rotate a barrel-shaped type head 26 about a horizontal axis 28. A similar set of cams (Fig. 5, not shown) act through a gear segment 242 to rotate the type head 26 about a vertical axis 31. The cams 61-64, 66-69 are rotated by corresponding gear segments such as 189, 229 according to an input code, the displacements by the pairs of cams being 8, 4, 2 and 1 units from left to right. The input code, whether keyboard or electromagnetically derived, positions bails 101, Fig. 9 and thereby, through slides 98, levers 94 each of which when moved is positioned in the path of a lug 127 or 131 whereby a corresponding lever 93, such as 93-2 or 93-4, Fig. 1, is moved to or from a cushioned stop 311 or 312, to rotate the connected segment such as 229 or 189 to its alternative position. The lugs 127, 131 are driven by a lever 154 from a cam 164 on a main shaft 123, which also drives a holding lug 107 for the slides 98 through a cam 121.
Patent GB-1382156-A (GB)
Title: Unsaturated polyester resin
IPC: C08K5/32
Filed: 1972-05-26
Abstract: 1382156 Polyester resins containing inhibitors BADISCHE ANILIN- & SODA-FABRIK AG 26 May 1972 [28 May 1971] 24885/72 Heading C3P  An unsaturated polyester resin contains a mixture of (a) at least one unsaturated polyester (b) at least one copolymerizable olefinically unsaturated monomeric compound, and (c) a salt of an N-substituted N-nitrosohydroxylamine of the general formula in which R denotes an aliphatic, cycloaliphatic or araliphatic radical of up to 18 carbon atoms and X denotes a metal, an ammonium radical or an organo substituted ammonium radical, as polymerization inhibitor. In the examples, polyester resins are prepared containing polyesters prepared from maleic anhydride, phthalic anhydride and propylene glycol-1,2, styrene, hydroquinone, the aluminium, calcium, potassium and cobalt-salts of N-nitroso-N-cyclohexylhydroxylamine, phosphorous acid and paraffin and films are cured from using cyclohexanone peroxide in a plasticizer, cobalt naphthenate, benzoyl peroxide in dibutyl phthalate and dimethyl aniline.
Patent GB-961785-A (GB)
Title: Manufacture of honeycomb structures
Inventor: CATCHPOLE ERIC JOHN
IPC: E04C2/36
Filed: 1962-06-28
Abstract: Synthetic resin adhesive compositions comprise: Example (1) 13 parts of polyvinyl formal known under the Trade Mark "Formvar", grade 15/95E in 70 parts of ethylene dichloride with 10 parts of a phenol-formaldehyde resin; or Example (2) a phenol-formaldehyde resin prepared by refluxing 80% phenol (560 parts), 37% aqueous formaldehyde solution (560 parts) and sodium hydroxide (2-121 parts) for about 80 minutes, then distilling water and diluting the residue with methylated spirits to a solids content of 43%; the diluted resin (200 parts) then being mixed with 368 parts of industrial methylated spirits and 172 parts of a polyvinyl butyral, Butvar B90 ("Butvar" is a Trade Mark); or Example (3) 100 parts of a soluble synthetic linear polyamide containing N-hydroxymethyl groups ("Zytel 61", Trade Mark) and 35 parts of resorcinol diglycidyl ether with 4 parts dicyandiamide dissolved in sufficient methanol-trichloroethylene mixture (3:1) to give a solution with 30% solids content; or Example (4) 100 parts of an epoxy resin prepared from 2,2-bis(p-hydroxyphenyl)-propane and epichlorohydrin melted with 33 parts of hexahydrophthalic anhydride and 2 parts of benzyl dimethylammonium phenate; or Example (5) 75 parts of the phenol-formaldehyde resin of Example (2) above to which are added 5 parts of hexamethylene tetramine; 0.5 part of sodium hydroxide and 25 parts of industrial methylated spirits, 44.8 parts of the resultant solution being added to 200 parts of Zytel 61 in methanol toluene. Specification 765,466 is referred to.
Patent GB-731134-A (GB)
Title: Improvements in and relating to polyethylene modified with anti-crack agent
IPC: C08L23/06
Filed: 1953-09-09
Abstract: A composition of improved resistance to cracking under stress in the presence of a surface-active agent comprises polyethylene (average molecular weight at least 2000, preferably up to 40,000) and 2 to 10 per cent of a copolymer of vinyl chloride and an octyl acrylate, e.g. 2-ethylhexyl acrylate.  The copolymer may contain 60-65 per cent by weight of vinyl chloride.  Calcium or magnesium stearate (0.1 to 2 per cent) and carbon black (0.2 to 5 per cent), with plasticizers, lubricants, anti-oxidants or colouring agents may also be included.
Patent GB-858201-A (GB)
Title: Improvements relating to a lever mechanism
Inventor: RADFORD CHARLES YORK
IPC: H01H19/62
Filed: 1958-08-01
Abstract: 858,201. Clockwork actuation of switches. VENNER Ltd. July 30, 1959 [Aug. 1, 1958], No. 24922/58. Class 38 (5). A spring contact set 4 is controlled by an insulating member 18 on a lever 11 pivoted at 12 and connected by a spring 19 with a lever 5 pivoted at 6. The levers have parts 17, 9, respectively, which bear on the surfaces of concentric cams 23, 22 having cam recesses 25 . . . 28 giving different operating characteristics. The lever 5 has a tail 8 engageable with a tail 15 on lever 11. The arrangement is such that when lever 5 is cammed outwardly, the spring 19 pulls lever 11 inwards until the part 17 engages, its cam 23, and when lever 5 drops into a recess in the cam, the lever 11 is moved outwardly by the interengagement of the tail, 8, 15.
Patent GB-207298-A (GB)
Title: An improved machine for grinding the interior of metal cylinders and the like
IPC: B24B41/00
Filed: 1922-09-15
Abstract: 207,298. Holmes, J. F. Sept. 15, 1922. Round holes, trueing.-In an internal cylinder grinding-machine, a grinder H not only rotates with its shaft T, but has a planetary motion about the axis of a tubular member A, which rotates in fixed bearings B, B<1>. Power from a countershaft M is conveyed by belt to a pulley Q<1> on a shaft R concentrically mounted in the member A, and thence by a chain running on sprockets P<2>, P<3> to a shaft G<1> journaled in a drum D attached to the member A. A chain running on sprockets P<5>, P<6> conveys the-power to the shaft T. The chain, which passes over the sprockets P<2>, P<3>, also passes over a jockey sprocket P<4> mounted on an adjustable shaft G<2> so as to adjust the tension of this chain, the shafts G<1>, G<2> being out of line with the shaft R so that the chain only engages one side of the sprocket P<2>. The shaft T is journaled in a sleeve, the flange F of which is pivoted at G to the cover of the drum D, and the eccentricity thereof is adjusted by a screw J. which engages teeth on the periphery of the flange F. The drum D is rotated by a chain running over sprockets P, P<1>. A base O, which supports the bearings B, B<1> and the countershaft M, can replace the tool rest of a turning lathe and be traversed, the work being fixed to the lathe bed, or the tool and work may be interchanged.
Patent GB-1029417-A (GB)
Title: Fluid control valve
IPC: B60T15/04
Filed: 1964-06-16
Abstract: 1,029,417. Fluid-pressure brakes; valves. WAGNER ELECTRIC CORPORATION. June 16, 1964 [Aug. 19, 1963], No. 24989/64. Headings F2F and F2V. A tandem control valve for two pairs of vehicle brakes 2, 3 is arranged so that actuation of the brake pedal depresses a plate 88 and a spring-connected piston 79 so compressing a spring 84 to engage a piston extension 83 with a valve closure 71 to isolate an outlet chamber 81 from atmosphere. The pedal force is also transmitted through the spring 84 to depress a second piston 48 against a spring 78 so that a piston extension 62 abuts a second valve closure 42 and isolates a second outlet chamber 57 from atmosphere. Continued motion of the pistons opens closures 71, 42 to admit pressure fluid from reservoir 10, 4 to brakes 3, 2 respectively. Pressure fluid in chamber 57 also flows into a ratio chamber 75 via a ratio valve 20 wherein it creates a force equal and opposite to that created by the fluid in the outlet chamber 81, whereby the ratio of pressures supplied to the brakes 2, 3 is 1: 1. When the reaction force generated by the pressure in chamber 81 is equal to that applied to the pedal the piston 79, 48 move upwardly until all the valves are in the " lapped " position; the reaction force provides " feel " to the operator through the plate 88. Upon clockwise rotation of the ratio valve 20 the pressure of fluid flowing to the brakes 2 is reduced, as also will be the pressure ratio between brakes 2, 3 since the ratio chamber 75 is vented, thus requiring different pressures in outlet chambers to balance the piston 48. The positions of either one of the piston extensions 62, 83 and valve closures 42, 71 may be reversed.
Patent GB-425315-A (GB)
Title: Improvements in and relating to sewing machines
IPC: D05B57/12
Filed: 1933-09-12
Abstract: 425,315. Sewing-machines. PAINE, H. R., Jandowae, Queensland, Australia. Sept. 12, 1933, No. 25265. Convention date, Jan. 31. [Class 112] The needle-bar feed and shuttle are operated by an L-shaped lever pivoted in the goose-neck and operated by the fly-wheel. The L-shaped lever 21 is pivoted at 19 and has a driving connection with the needle-bar 18 at 23 so that as it moves on its pivot it reciprocates the needle-bar. At its lower end 25 it is connected by a leaf spring or bar 26 to the carrier 28 of the shuttle 29, so that its movements about its pivot reciprocate the shuttle. The shuttle 29 has a rib 31 engaging a groove in the shuttle race 32, Fig. 3. The lever is oscillated about its pivot by a ball-ended crank 14, 16 on the end of the fly-wheel spindle 4. The work is fed by a feed-foot 52 carried by an arm 51 secured by a screw 50 to a bracket 45 pivoted to the presser bar 40 at 44. A roller 48 on the end of the lever 21 engages a lever 47 to lift and advance the feed-foot and to lift the presser during feeding.
Patent GB-792973-A (GB)
Title: Compression tester
IPC: G01L19/00
Filed: 1956-08-20
Abstract: 792,973. Compression testing. ALLEN ELECTRIC & EQUIPMENT CO. Aug. 20, 1956 [April 16, 1956], No. 25370/56. Class 106 (2). [Also in Group XXVIII] A compression tester includes an air-tight chamber 13 having an expansible end portion 12 at one end thereof receivable into an opening in a pressurized chamber and a tube 17 through the chamber 13 and the end portion 12 to connect the pressurized chamber with a pressure indicator. A port 34 in the tube 17 provides communication between the tube 17 and the air-tight chamber 13, and an expansion mechanism 14 at the end of the chamber 13 expands the end portion 12 into fluid-sealing engagement with the opening when the tube is in communication with the pressurized chamber. The expansible end portion 12, preferably made of rubber, is provided with a number of coaxial cylindrical surfaces 23 to ensure engagement in various sizes of opening and is held in position by a retaining screw 32. This end portion 12 is provided with an internal coaxial opening 24, the upper end of which is conical and engages a similarly shaped surface on the expansion mechanism 14. This latter comprises a conical slide 35 supporting a flexible piston 38, in the air-tight chamber 13. A non-return valve 31 in the tube 17 allows gas to flow upward along the tube, but prevents its returning. In use, the lower end of the tester is inserted into an opening in the wall of the chamber whose pressure is to be measured, gas flows past the valve 31 to give a reading on the pressure indicator (not shown) connected at 18. Some of the gas flows through the port 34 into the airtight chamber 13, and this, pressing on piston 38, forces the conical slide 35 downward, thus pressing the flexible end portion 12 against the walls of the opening and making an air-tight seal, which is improved as the pressure rises. After pressure in the chamber has been released it remains indicated, until a manually operated valve on the gauge has been opened, since the valve 31 prevents flow of gas back through the lower end. To adapt the tester for openings of different ranges of size or shape, the screw 32 is removed, member 12 removed, a new flexible end portion having the required shape and size is inserted, and the screw 32 then replaced. Various adapters for use of the tester in different locations are also described.