baber/WOPTO huggingface dataset:
Patent GB-829829-A (GB)
Title: Improved means for weighting machine rollers
Inventor: MALCOLM LEONARD
IPC: D01H5/50
Filed: 1956-08-23
Abstract: 829,829. Roller weighting means. T.M.M. (RESEARCH) Ltd. Aug. 21, 1957 [Aug. 23, 1956], No. 25765/56. Class 120(2) Means for simultaneously loading a plurality of upper rollers of successive pairs of drafting rollers comprises for each upper roller a bearing member and a resilient member capable of being stressed to apply loading pressure to the bearing member, and a loading member common to all the upper rollers mounted separately from the bearing members and resilient members, and capable of being locked in position to stress the resilient members and thereby load the rollers. As shown in Fig. 3, a helical spring 20 is mounted in a telescopic housing 18, 19, and loaded by an arm 21. A locking device operates two adjacent arms 21 so that the loading on a set of upper rollers may be released with one hand. In the modification shown in Fig. 4 a leaf spring 25, which may be prestressed by a member 27, replaces the helical spring 20. Blocks of natural or synthetic rubber may be used instead of the spring 20. Specification 818,093 is referred to.
Patent GB-858525-A (GB)
Title: Improvements relating to combustion chambers for prime movers
Inventor: GODFREY ROY EDWARD
IPC: F23R3/06
Filed: 1958-08-12
Abstract: 858,525. Generating combustion products under pressure. LUCAS (INDUSTRIES) Ltd., J. Aug. 11, 1959 [Aug. 12, 1958], No. 25841/58. Class 51 (1). In an air jacketed type of combustion chamber for use in jet propulsion engines and other internal combustion engines in which the flame tube c is formed with openings b for the admission of secondary and dilution air, an insert a is associated with each opening. Each insert is made from a small sheet metal plate shaped so that a part of its periphery is received within the associated air inlet opening and so that the remaining part forms with the inner surface of the flame tube wall a narrow gap through which a limited flow of air can enter the flame tube in a direction parallel to the wall. A hole is formed in the insert having a lip around its periphery for the admission of a radial inflow of air. The upstream part of the insert is of semi-circular form and is received within the opening b being secured thereto by means of lugs d which lie adjacent the outer surface of the flame tube and are secured thereto by welding. The downstream portion e of the insert is shaped to extend beneath the wall of the flame tube forming therewith a narrow space f through which air flows along the inner surface of the flame tube as indicated by the arrows. The portion e of the insert is shaped so that it may be secured to the inner surface of the flame tube at g. A hole is formed in the insert concentric with the opening b in the flame tube, the hole being formed with an inwardly directed lip h to guide radially inflowing air. In a second embodiment, the upstream portion of the insert is spaced from the edge of the air inlet opening b so as to form a narrow air inlet passage m, the edge of the inlet opening b being formed with an inwardly directed lip k parallel to the lip h of the insert. The downstream portion e of the insert extends beneath the wall of the flame tube and is secured thereto as in the first embodiment. Attachment lugs d are not provided in this embodiment, the insert being secured to the edge of the inlet opening b by welding at the points o. Specification 665,155 is referred to.
Patent GB-439321-A (GB)
Title: Improvements in electric thermal switches
IPC: G01K5/16
Filed: 1934-09-10
Abstract: 439,321. Mercury switches. FOSTER, C. E., Elm Tree House, Letchworth Lane, Letchworth, Hertfordshire, WILD-BARFIELD ELECTRIC FURNACES, Ltd., and GRENE, G. H. S., North Road, Holloway, London. Sept. 10, 1934, No. 25945. [Class 38 (v)] A thermally - operated mercury switch comprises a closed glass tube C containing mercury D in contact with an electrode Q. A contact wire P is connected by an armature A and helix G to a second electrode R. Expansion of the mercury due to a rise in temperature causes it to make contact with wire P and hence connect the electrodes Q and R. The temperature at which contact is made can be varied by adjusting the position of the contact P by means of a magnet M acting on the armature A. In modifications, an electromagnet is used which may be energized by alternating current or pulsating direct current to vibrate the armature to prevent sticking.
Patent GB-136146-A (GB)
Title: Improvements in the Drawing Apparatus of Cotton-spinning Machines.
Inventor: SIG CAMILLE
Filed: 1919-10-23
Abstract: 136,146. Sig, C. Dec. 2, 1918, [Convention date]. Rollers and roller heads.-The intermediate top roller of the drawing-rollers of cotton-spinning machines is replaced by a weighted or spring-controlled plate 8 that partly encircles, and may be fitted above or below, the roller 5. To obtain a greater draft, an additional plate 7 may be fitted to grip the fibre at its approach to the roller. More than two plates may be provided. The plates are carried on an eccentric shaft 4, by turning which the distance between the nip of the plate 8 and the intermediate roller and that of the front rollers may be adjusted; further to reduce this distance the. lower roller may be raised, or reduced in diameter, for instance to ten millimetres. A light floating roller 13 driven by the front roller and touching the roller 5 may be provided when drawing cotton containing a large proportion of short fibres.
Patent GB-686572-A (GB)
Title: Improvements in production of hydrogen peroxide
IPC: C01B15/023
Filed: 1950-10-26
Abstract: In the production of hydrogen peroxide wherein an alkylated anthraquinone intermediary is hydrogenated in solution in the presence of a catalyst to produce the corresponding anthrahydroquinone and the latter is oxidized to produce hydrogen peroxide and to regenerate the alkylated anthraquinone which is recycled, the anthraquinone intermediary is 2 tertiarybutyl anthraquinone, preferably in admixture with tetrahydro-2-tertiary-butylanthraquinone, for example 10-40 per cent thereof.  A suitable solvent medium for the quinone and hydroquinone form of the intermediary is 25-75 per cent mixture by volume of primary or secondary nonyl alcohols such as di-isobutylcarbinol or 3.5.5 trimethylthexanol-1, and a mono or dimethyl naphthalene, particularly a methyl naphthalene, such solvents being disclosed in Specification 686,567.  The reduction of the anthraquinone is preferably effected in the presence of activated alumina-supported palladium catalyst as disclosed in Specification 686,574. Hydrogenation temperature of 20 to 40 DEG C and oxidation temperatures of 30-60 DEG C may be employed. Specification 465,070 also is referred to.
Patent GB-628430-A (GB)
Title: Improvements in and relating to hectographic copying machines
IPC: B41L11/00
Filed: 1947-09-27
Abstract: 628,430. Printing surfaces. BLOCK & ANDERSON, Ltd., and GERLACH, H. Sept. 27, 1947, No. 26204. [Class 100 (ii)] A clip which engages the leading edge of a master sheet of a hectograph copying machine forms a self-contained unit independent of the drum structure and comprises a fixed jaw 2, a guide plate 1 secured to the drum structure and a spring-loaded jaw or jaws 4 slidable between the plate 1 and jaw 2. The slidable jaw 4 carries a spring 5 secured to a lug 6 on the plate 1 and is moved outwardly in a radial direction by a lever 14 which passes through a slot 8 in the plate 1. The end walls 10 of the drum are slotted radially to receive the clip unit which is secured in position by screws 12 passing through cover plates 11 into the guide plate 1. Screws 3 pass through slots 7 in the movable jaws 4 to secure the guide plate 1 to the jaw 2.
Patent GB-499481-A (GB)
Title: Improvements in bushes or linings
IPC: F16C11/04
Filed: 1938-09-08
Abstract: 499,481. Bearing bushes. FLUS, W. Sept. 8, 1938, No. 26260. [Class 12 (i)] A bush or lining comprises two or more seginents b of a cylinder in the opposing faces of which are grooves c for wedges d. The segments may be cut from a tube, and the wedges d are preferably driven in from opposite sides.
Patent GB-936407-A (GB)
Title: Methods of and apparatus for the production of moulded hollow articles
Inventor: SENIOR HENRY
IPC: F16L55/17
Filed: 1960-07-28
Abstract: 936,407. Blow moulding hollow articles. BRITISH XYLONITE CO. Ltd. July 21, 1961 [July 28, 1960], No. 26288/60. Class 87(2). Hollow articles are produced by injecting or extruding round a mandrel 92 in an injection zone A a parison 126 of thermoplastic material and transferring it on this mandrel to an intermittently-rotating system 1 where it is expanded by internal blowing in a shaping mould 32 and subsequently ejecting the finished article at different stations D in the system. The injection and blowing mould sets 11 and 32 respectively are preferably of split form to allow for release of the mandrels 92. The injection moulds 11 can be cooled at the lower portion and are equipped with electrical heaters 90. Means for cooling the blow moulds at stations B and C are provided. A mandrel carrier 10 corresponding to each set of blow moulds arranged on a rotary table 4 is slidable when opposite the injection zone A radially on the table 4 from a position beyond the table in the injection zone A to an inner blow moulding position during rotation of the table 4 until the mandrel reaches the ejection zone D. The carrier 10 can carry any selected number of mandrels making it applicable to changes in moulds, the opening and closing of which is accomplished by automatically operated air cylinders 6. The blowing air and valve operating air is supplied through the central rotary core of the system 1. The injection assembly 2 is of any desired form i.e. plunger or screw mechanism which may be disposed vertically, horizontally or with angular swing and more than one assembly may be provided. The compressed air for blowing the parison is used to eject the finished article. The mandrel which serves as a core during the injection moulding comprises a hollow interior 115 through which compressed air is passed and an outer sleeve 112 separable along a transverse joint 123 near the point where the injected shape of a parison is to be conserved e.g. the screw neck portion of a bottle, and through which joint the air returns to the mandrel interior so that this air cools the parison at the part thereof which is not to be expanded.
Patent GB-619893-A (GB)
Title: Improvements in or relating to packing or wrapping machines
IPC: B65B35/58
Filed: 1947-09-02
Abstract: 619,893. Feeding single packets. HARVEY, V. P., and MOLINS MACHINE CO., Ltd. Sept. 2, 1947, No. 26458/46. [Class 94 (i)] A vertical stacker for a packing or wrapping machine comprises a reciprocating claw 3, adapted to remove single packets from the top of the stacker 2, a sloping surface 16 down which a packet so removed is caused to slide at an angle of less than 90 degrees, an oscillating flap 18 adapted to engage said packet on the surface 16 and complete the translation of the packet through a total angle of substantially 90 degrees and a resilient stop comprising a pivoted spring- urged pawl 26 to control the fall of the packet or to a support 17. The claw 3 is fixed on the end of a lever 5 pivoted at 6 to a lever 7 oscillating about a pivot shaft 8 journalled in the frame, to which shaft is fixed a lever 10 pivoted at 11 to a driven connecting rod 12. The lever 5 is caused to reciprocate along a fixed cam 15 through a roller 14 and spring 4. The flap 18 passes through the plate 16 and is moved by the lever 19 pivoted on a shaft 20 journalled in the frame, to which shaft is fixed a lever 21, pivoted at 22 to a driven connecting rod 23.
Patent GB-728441-A (GB)
Title: Improvements in or relating to platen presses
IPC: B27D3/02
Filed: 1951-11-12
Abstract: 728,441. Reciprocating pumps. SCHUBERT, H. Jan. 12, 1953 [Nov. 12, 1951]; No. 26471/51. Drawings to Specification. Class 102 (1). [Also in Group XXIX] A hand pump to give two rates of delivery has a large diameter piston in which is mounted a second piston of small diameter. A control lever locks the two pistons together when in one position, whilst on the second the large diameter piston is held stationary.
Patent GB-1007657-A (GB)
Title: Closure device particularly for containers for liquids or pastes
IPC: B65D75/58
Filed: 1963-07-04
Abstract: 1,007,657. Collapsible containers; closures for bags. R. KUSTER. July 4, 1963 [July 6, 1962], No. 26477/63. Headings B8D and B8K. A flexible container, e.g. of synthetic plastics material, has a closure member, Fig. 1, permanently secured to an end or corner so that leaf springs 5, joined at their ends, are clamped on either side of the containing material. After the corner of the container is cut off the container walls are pressed to force out the contents through a slit 3 against the action of the springs 5, plate members 6, 6<SP>1</SP> being squeezed together at the same time to open the slit 3. The closure member may simply comprise leaf springs 15 joined at their ends and adhered to strengthened areas 13 of the container, Fig. 6. In the form shown in Fig. 7, the closure is formed either of metal or plastics, e.g. polyethylene, polyvinyl chloride, polystyrene or butadiene; a leaf spring 27 is either moulded integrally or secured mechanically to the closure member. The two side members of the closure may be urged together by a wire spring, Fig. 13. The closure may be applied before the container is filled, Figs. 27-28 (not shown), a protruding neck of the container being heatsealed subsequently.
Patent GB-1436979-A (GB)
Title: Output circuitry for a digital instrument
IPC: H03M1/00
Filed: 1974-06-14
Abstract: 1436979 Display jitter prevention INTEGRATED PHOTOMATRIX Ltd 14 June 1974 26572/74 Heading G4H In a digital instrument output circuitry in which a store controlling a display is periodically updated from a counter, the updating transfer of the least significant counter digit is prevented if that digit represents a transition between address and evenness from the least significant digit at the immediately preceding transfer instant. Preferably the counter output is BCD, the transfer conditions then being that the least significant bit has the same value as at the previous transfer instant. Transfer of the next significant digit or of all digits is preferably prevented when the least significant digit is "0" or "9" and the least significant digit transfer is prevented. The BCD count in counter JKL is connected to display store Q with the least significant digit passing via staticiser N. The previous least significant bit #A is stored in shift register M which is updated by each transfer pulse. Logic circuits S, T, U and W compare the previous and present bit A and if the same, gate the TRANSFER PULSE to staticiser N to transfer the digit J to store Q. Logic circuits X, Y, Z and E detect the "0" and "9" values and via gates F, G and H prevent any transfer to store Q unless a pulse P is also present.
Patent GB-637264-A (GB)
Title: Improvements in or relating to cartridge extractor mechanisms for firearms
IPC: F41A15/14
Filed: 1947-10-02
Abstract: 637,264. Cartridge-case extractors. ZBROJOVKA BRNO, NARODNI PODNIK. Oct. 2, 1947, No. 26599. Convention date, Feb. 25, 1943. [Class 119] An extractor 2 is formed integrally with a pivot pin 3, which rotates in a bore 3<SP>1</SP> of the breech-block 1, and has a longitudinal bore 5 which houses a spring 6 which tends to rotate the extractor about its pivot. The spring acts on a plunger 7 whose outer face is thus urged into a narrow vertical slot 11 in the breechblock. To remove the extractor a cartridge 13 is used to press the plunger out of the slot 11 and another cartridge, inserted in an extension 14 of the bore 3<SP>1</SP>, is used to push the extractor laterally out of the breech-block.
Patent GB-948277-A (GB)
Title: Connectors for jointing wires, rods and the like
Inventor: DRYSDALE JOHN
IPC: F16G11/02
Filed: 1961-07-25
Abstract: 948,277. Connectors for wires &c. CABLE COVERS Ltd. July 25, 1962 [July 25, 1961], No. 26824/61. Addition to 890,740. Heading F2G. [Also in Division D1] In a connector comprising an outer sleeve 1 adapted to retain at least one tubular insert 3 for receiving a wire, rod or stranded cable and having a screw-threaded bore 5 and a knurled, serrated or otherwise treated outer surface so that upon the sleeve being radially compressed the insert bites into or grips the end of the wire and also bites into or grips the interior of the sleeve, the latter includes an extension 8 which is adapted to be connected to an anchoring means and also strained or tensioned. The extension may be externally screw-threaded and provided with a nut, drilled and internally screw-threaded, or provided with other suitable tensioning and straining means.
Patent GB-1119767-A (GB)
Title: Improvements in or relating to razor blades
Inventor: WELSH NORMAN CLIFFORD
IPC: B26B21/54
Filed: 1966-06-16
Abstract: 1,119,767. Razor blades. GILLETTE INDUSTRIES Ltd. 14 June, 1967 [16 June, 1966], No. 26860/66. Heading B4B. A safety razor blade comprises two steel blade strips 1 which are secured together with their sharpened edges 11 parallel and closely adjacent to one another by resiliently flexible coupling means 2 which when unstressed hold the blade strips in a common plane but permit them to be displaced angularly relative to one another while parallelism of their sharpened edges is maintained. When the blade is flexed, the blade strips may lie in planes inclined to one another at an angle of about 130 degrees, the width of the gap between the adjacent edges 11 of the blade strips being in the range of 0À015 inch to 0À045 inch e.g. 0À030 inch. In the form shown, the coupling means is in the form of a backing member cut from a resiliently flexible plastics film and formed with two rectangular openings 21 so that the backing member has the form of a frame comprising two side strips 22 joined togeher by three integral transverse strips 23. The blade strips are cemented to the backing frame. Alternatively, the blade strips are secured together by two strips of spring steel extending transversely to the length of the blade strips and welded to the blade strips near the ends thereof and a third spring steel strip may be arranged at the centre of the length of the blade strips. When only two coupling strips are provided at the ends of the cutting edges they may be disposed on that side of the blade strips which is presented to the face in shaving. In another modification, one blade strip may be replaced by an unsharpened guard strip and the coupling strips formed integrally with the guard strip.
Patent GB-884221-A (GB)
Title: Improvements relating to heaters for boiler feedwater
Inventor: ARUNDEL ROBIN
IPC: B01D19/00
Filed: 1959-08-06
Abstract: 884,221. Feedwater heating systems. PERMUTIT CO. Ltd. July 19, 1960 [Aug. 6, 1959], No. 26932/59. Class 64(1) In a boiler feedwater heater and vacuum deaerator in which water to be heated is introduced as a spray 5 into a vacuum vessel 1 into which steam is introduced through a pipe 7 so that condensation of the steam heats the water, the vessel 1 has an overflow pipe 9 having an inlet 10 at the overflow water level and extending downwardly below the vessel to an overflow tank 11 which has a water supply connection 14 with a ball valve 15 or other device, for controlling the filling of the tank to a set level, the outlet from the overflow pipe 9 being below this level and the tank having an overflow 13 above this level. In the preferred arrangement as shown, the vacuum in the vessel 1 is maintained by an ejector 3 which also removes air or other gases and uncondensed steam. Pressure changes in the vessel 1 are accommodated by corresponding changes in the water level in overflow pipe 9 (see e.g. level L2 in the Figure) this water being drawn from the tank 11. Heated and deaerated water flows from the vessel 1 to a container 2 through a pipe 8.
Patent GB-645749-A (GB)
Title: Improvements in rotary electric switches
IPC: H01H19/63
Filed: 1948-10-18
Abstract: 645,749. Switches held set and freed mechanically. REVO ELECTRIC CO., Ltd., and FELTON, A. E. Oct. 18, 1948, No. 26979. [Class 38 (v)] A rotary switch comprises a rotatable cam disc 32 having recesses 33, 34 formed in flanges 33a, 34a on opposite sides thereof and co-operating with transverse ribs 36, 38, on pairs of spring-blades 17, 18 and 27, 28 arranged on opposite sides of, and biassed towards, fixed contacts 13, 14. In two positions of the disc 32, all of the contacts are open, in the second position contacts 13, 27 and 14, 18 are closed, and in the fourth position contacts 13, 17 and 14, 28 are closed. A locating device such as that described in Specification 619,642 is provided.
Patent GB-715058-A (GB)
Title: Improvements in or relating to thermionic valves
Inventor: WIDDOWSON ARTHUR EVERARD
IPC: H01J19/42
Filed: 1951-11-16
Abstract: 715,058. Thermionic valves. M-O VALVE CO., Ltd. Nov. 17, 1952 (Nov. 16, 1951], No. 26995/51. Addition to 669,386. Class 39(1) A thermionic valve as claimed in the parent Specification has the electrode assembly clamped together by means of at least two members each of which comprises a body of insulating material having a hole through which the electrode assembly passes with one of the two refractory blocks on which the cathode and anode are mounted abutting against the boundary of the hole, and a small metal plate secured to the body and pressing resiliently against the other block. In the construction shown in Figs. 1 and 2 the electrode assembly is mounted on a pressed glass base 1 and includes two ceramic blocks 3 and 4 on which are respectively mounted the anode 5 and cathode 6. The anode 5 is in the form of a metal sheet which is wrapped round the block 3 and is welded to a heat radiating member 7 to which is welded a metal strip 8 serving as a lead. The cathode 6 is in the form of a plate secured to a metal box 9 containing the cathode heater, the box 9 being mounted in a hole in the block 4 and being secured thereto by means of flaps 10. A metal strip 11 welded to the box 9 serves as a lead for the cathode 6. A grid member is sandwiched between the two blocks 3 and 4 and comprises a metal plate 12 supporting the wires of the grid electrode, the spacings between the grid wires on the one hand and the anode 5 and cathode 6 on the other hand being determined by spacing member 13, welded to the plate 12, which are of the form described in Specification 715,051. A metal strip 14 is welded to one of the spacing members 13 and serves as a lead to the grid electrode. The electrode assembly is clamped together by means of two members each comprising a mica plate 15 having a central hole 16 and a small resilient metal plate 17 firmly secured to the plate 15 by a metal eyelet 18 and slightly overlapping the hole 16. The arrangement is such that the plates 17 are bent slightly when the electrode assembly is inserted in the holes 16 in the plates 15, in each case the plate 17 pressing resiliently against the block 3 and the block 4 abutting against the side of the hole 16 opposite the side at which the plate 17 is mounted. The edges of the plates 17 which engage with the block 3 are serrated at 19. The plates 15 are disposed so that they abut against the ends of the member 7 and the plates 17 are provided with tags 20 bent over and welded to the strip 8. The plates 15 are provided with metal eyelets 21 through which pass metal rods 22 secured to the eyelets. The ends 23 of the heater are respectively connected to the rods 22 which serve as leads thereto.