baber/WOPTO huggingface dataset:
Patent GB-291129-A (GB)
Title: Improvements in or relating to the manufacture of safety fuses for use in mining and blasting
IPC: C06C5/08
Filed: 1927-02-15
Abstract: 291,129. Fritzsche, J. Feb. 15, 1927. Cores, covering by winding. -Relates to fuzes built up of. a powder core covered by three or more layers of thread, preferably wound alternately in opposite directions. The principal feature of the. invention consists in winding the layers in a continuous operation in such a manner that a considerable gap occurs between consecutive threads of a layer, whilst, as an additional method of economizing thread, it may be. wound with a relatively long pitch in the helix. Fig. 6 shows a portion of the fuze, having a core of powder enclosed in a wrapping B of paper &c., and four layers T' - - T<4> of jute threads; the wide spacing of the threads facilitates impregnation with waterproofing &c. material. Means are preferably provided for enabling the fuze to be readily tested and inspected during its passage through the winding-machine. For this purpose, the machine may be designed as shown in Fig. 3, with the spinning units W<1> - - W<4>, by which the successive thread layers are applied to the fuze 5, widely spaced. This enables a testing-device B (which gauges the thickness of the fuze, and automatically actuates an alarm, or stops the machine, when necessary) to be placed in a suitable position between two of the winding units. Further, the wide spaeing allows and defect in the winding of the threads to be seen by the attendant, and to facilitate this examination the threads used at one stage may be coloured differently from those used at the next stage, or colour may be applied as the threads pass from one winding stage to the next, as for example by drawing the fuze through a colour-container 11. Another device for this purpose consists in forming a distinctive background for a particular layer of threads by winding coloured paper around the preceding layer. This feature is illustated at X, Fig. 3.
Patent GB-1440896-A (GB)
Title: Vacuum pumping system
IPC: F04C29/00
Filed: 1974-01-30
Abstract: 1440896 Vacuum pumping systems HICK HARGREAVES & CO Ltd 6 Jan 1975 [30 Jan 1974] 04235/74 Heading F1F A vacuum pumping system comprises a Rootes type pump, an atmospheric air or other gasoperated ejector connected to the suction side of the pump and water or other liquid spray injection means arranged to inject a liquid mist into the system between the ejector and the suction of the Rootes type pump to act as a coolant and tip sealing means for the pump. As described, the system comprises two pumps 6, two water injection nozzles 5, an inlet valve 1, an air outlet 13 to atmosphere two air ejectors 2 whose suction sides are connected to inlet valve 1 and a common bypass which is in parallel with the two ejectors 2 and has a by-pass valve 4, a vacuum pump relief valve 10 and an air inlet valve 11 for dry-out. Initially the valve 4 is open but is closed to render the two ejectors 2 operative when the system is approaching its operative vacuum level. A pump drainage valve 7 and the valve 11 are opened to dry the pump, after which a pump motor 7 can be run down. The ejectors 2 are preferably operated with atmospheric air but they can alternatively be operated with air or another operating gas recirculated from the pump discharge. The system may be used to evacuate a large power turbine condensing plant.
Patent GB-996552-A (GB)
Title: Improvements in escutcheon plates
IPC: E05B15/02
Filed: 1963-02-01
Abstract: 996,552. Latches. BRAMAHS Ltd. and C. L. MORLIDGE. Dec. 11, 1963 [Feb. 1, 1963], No. 4251/63. Heading E2A. A door fitting includes a pair of escutcheon plates 7, 8 adapted to lie on opposite sides of the door 2, the outer plate 7 being provided with a key-hole or key slot 13, the plates being adapted to be secured by bolts 9-11 passing therethrough and through the door, the heads of the bolts on the outside of the door being of smooth flat-domed formation such as to preclude removal of the bolts from the outside of the door by a tool.
Patent GB-813657-A (GB)
Title: Cathodic protection system and anode therefor
IPC: C23F13/14
Filed: 1957-02-07
Abstract: A cathodic protection anode, suitable for the protection of ferrous pipes in earth, is made from an alloy having the following composition: Mn 0.50-1.3 per cent; Al not over 0.01 per cent; Sn not over 0.01 per cent; Pb not over 0.01 per cent; Fe 0.001-0.03 per cent; Ni not over 0.002 per cent; Mg at least 98.5 per cent.  Up to 0.05 per cent of each of Cd, Cu, Ca, Si and Zn may be present.  The amount of manganese is at least equal to 0.5+60 (per cent Al).
Patent GB-500997-A (GB)
Title: Improvements in and relating to india-rubber hose
IPC: F16L33/01
Filed: 1938-02-11
Abstract: 500,997. Hose pipes. MOULTON & CO., Ltd., G. S., GLASCODINE, -R. T., CHRYSTAL, J. M., and PICKLES, S. S. Feb. 11, 1938, No. 4329. [Class 99 (ii)] A hose pipe comprises a rubber lining A, a wire reinforcement D woven or braided around the lining, and a rubber covering I without any intermediate non-metallic fabric, the whole being vulcanized. At the ends only plies of fabric B, E, F, such as frictioned asbestos cloth, are inserted. The covering I may consist of a synthetic material such as polymerized butadiene. The hose may have a loose covering of canvas and outer or inner helical wire armouring.
Patent GB-423069-A (GB)
Title: Improvements in or relating to absorption refrigerating apparatus
IPC: F25B15/10
Filed: 1934-02-09
Abstract: 423,069. Refrigerating. ELECTROLUX, Ltd., 153, Regent Street, London.- (Assignees of Platen-Munters Refrigerating System Aktiebolag ; 2, Norrmalmstorg, Stockholm) Feb. 9, 1934, No. 4341. Convention date, Feb. 11, 1933. [Class 29] A b s o r p t i o n s y s t e m s . - In a system containing a pressure - equalizing inert gas the liquefied refrigerant is precooled, prior to its entry into the evaporator, by direct contact with the poor gas flowing from the absorber to the evaporator. A branch conduit 17 from the pipe 14 conveying the poor gas from the absorber 10 to the evaporator 16 enters a chamber or tubular enlargement 19 where it contacts with liquefied refrigerant flowing through a pipe 18 from the condenser. A part of the refrigerant is evaporated thereby and cools the remainder, which flows through a seal pipe 21 to the main evaporator 16, and gas-mixture formed in the space 19 is led by a pipe 20 to the usual gas interchanger 15 or to the pipe 13 conveying rich gas mixture from the evaporator to the interchanger. The poor gas thus flows in parallel streams and the liquefied refrigerant in series through the vessels 19, 16. Where the main evaporator 16 contains baffles the vessel 19 may be connected thereto above the baffles so as to receive a part of the incoming poor gas, which then moves in counterflow to the refrigerant in the space 19. The element 19 may serve as a high temperature evaporator located above the low temperature evaporator 16 in a refrigerating cabinet.
Patent GB-160072-A (GB)
Title: Improvements in chucks for lathes, boring tools and the like
IPC: B23B31/163
Filed: 1920-02-13
Abstract: 160,072. Vernaz, M. Feb. 13, 1920. Chucks. - In a chuck for lathes, drilling machines, &c., the jaws are moved in radial slots by dogs engaging eccentric grooves, the peripheral openings of which are of different widths, to avoid the necessity for inserting and removing the dogs simultaneously. As shown in Fig. 1, a. easing b is secured by screws b<1> to a plate a, which is formed with a boss a<1> for screwing to a lathe &c. The jaws d slide in radial slots c which are formed with feathers c<1> engaging grooves in the jaws. A worm-wheel e, mounted on a boss b<2> of the casing b, engages a screw f formed at the end with trunnions which lie in recesses in the casing. The screw is retained in position by the flanges of the wheel c, which is cut away at one part of its periphery to permit insertion of the screw. The latter is turned by a key inserted through a hole in the casing. Dogs i, which engage eccentric slots h, Figs. 1 and 4, in the face of the wheel e, are formed with projections which enter holes in the jaws d. Each jaw may have more than one hole, in order to permit variation in the setting of the jaws. The terminal openings h<1> of the grooves It are of different widths. The grooves h are arranged to give a slower radial feed as the jaws are opened out.
Patent GB-234177-A (GB)
Title: Improvements in automatic regulators for heat or moisture
IPC: H01H35/00
Filed: 1924-02-21
Abstract: 234,177. Burdick, C. L. Feb. 21, 1924. Thermostats.-In mechanism automatically controlled by variations in an expanding and contracting element due to variations in heat or humidity, a multiplicity of expanding and contracting elements are combined with an arrangement of one or more levers designed to multiply the combined movement of the variable elements for the operation of valves for compressed air or gas, and mechanism operated by the compressed air or gas is arranged to control supply valves or do other work. The variable elements 5, 5a may be pieces of metal, vulcanized rubber, cotton threads, or other material which will vary in length or position with heat or moisture and are connected to levers 4, 4a which multiply their combined movement to move a rod 13a pivoted to a bar 9 controlled by a spring 10. The bar 9 is provided with four adjustable set-screws 22, 22<a>, two of which are adapted to contact with two valve spindles, in each valve chest 2<a> or 2 according to the contraction or expansion of the elements 5, 5a the normal position of the bar 9 being controlled by an adjusting screw 8 and slider 6. Compressed air or gas is admitted to one valve in each chest by tubes 16, 16a, 16b, the other valve in each chest communicating with the atmosphere through an outlet 17, 17<a>. Tubes 18, 19 connect the opposite ends of a pneumatic cylinder with a pressure and exhaust valve in opposing valve chests so that an upward or downward movement of the bar 9 due to expansion or contraction of the elements 5, 5<a> opens one pair of valves to admit pressure to one side of the piston and to exhaust the other, the movement of the piston operating a valve, switch, belt or like means. In a modification, more than two levers may be employed, the adjustment by the screw 8 being at the point where the expanding material contacts the bar 9.
Patent GB-284481-A (GB)
Title: Improvements relating to drinking bowls for cattle
IPC: A01K7/06
Filed: 1927-02-17
Abstract: 284,481. Picken, A. Feb. 17, 1927. Valves actuated indirectly. - An automatic water bowl 1 for cattle has the water supply controlled by a nose-actuated trigger plate 4 provided with a boss 17 to spread the water and to engage the spindle 15 of the inlet valve 3. The valve and its control gear are mounted on a bracket 13 screwed to the main bracket carrying the bowl and provided with a casing 16 to house the valve spring 14 and spindle 15.
Patent GB-1420561-A (GB)
Title: Polycarbonate-polyvinyl chloride moulding compositions
IPC: C08L23/08
Filed: 1974-01-31
Abstract: 1420561 Polymer blends BAYER AG 31 Jan 1974 [1 Feb 1973] 04533/74 Headings C3P C3R and C3G A moulding composition comprises 5-90% of a polycarbonate, 5-90% of a vinyl chloride polymer and 5-90% of a vinyl chloride polymer and 5-90% of an ABS type graft polymer, a styrene/maleic anhydride polymer or an ethylene/vinyl acetate polymer. The ABS type polymer includes MBS and MABS polymers and polymers based on EPDM rubbers.
Patent GB-874108-A (GB)
Title: Variable pitch impellors
IPC: F04D29/36
Filed: 1958-02-12
Abstract: 874,108. Axial-flow fans. TOTHILL, G. R. Feb. 12, 1958 [Feb. 13, 1957], No. 4544/58. Class 110 (1). A variable-pitch impeller comprises a hub connected to the drive shaft by resilient means which oppose rotation of the shaft relative to the hub from an equilibrium position, impeller blades pivotally mounted on the hub by radial shafts, a pair of pins carried on the inner end of each blade shaft and spaced apart so as to be located on opposite sides of the drive shaft, a nut restrained from rotational movement and engaging a screw-threaded portion of the drive shaft, a flange extending radially from the nut and interposed between each pair of pins, and means which bias at least one pin of each pair against the flange. In the fan shown, each impeller blade 14, Figs. 1 and 2, is carried by a radial shaft 18, Figs. 1, 6 and 8, pivotally mounted on a hub 11 and in an outer ring 84. A flange 37 on the inner end of each shaft 18 carries pins 41, 42 which straddle a flange 62 on a nut 53 and are urged against the flange by spring-pressed discs 61, 611. The nut 53 engages a screw-threaded portion 56 of the drive shaft 13 and is prevented from rotating relatively to the hub 11 by engagement with guides 51 or, alternatively, splines. The drive shaft 13 is connected to the hub 11 by clock springs 63, 64 which are coiled in opposite directions. When the fan is stationary, the blades 14 overlap one another as shown in Fig. 1 and close the opening in the mounting frame 95, the inner and outer peripheries of the blades abutting against sealing flanges on the hub 11 and ring 84. The blades and sealing flanges may be coated with soft rubber or plastics. Stationary flanges 96, 97 form a labyrinth seal around the ring 84. The ring 84 may be journalled on the flange 97, either directly or through a ball-bearing, and flange 96 may be eliminated if the ball-bearing carries its own seal. The fan can be driven in either direction, according to the direction of air flow required, by a reversible motor 93. On starting, the inertia of the fan prevents it from attaining the same speed as the motor, and shaft 13 consequently rotates relatively to the hub 11, winding up one or other of the springs 63 and 64, depending on the direction of rotation, and unwinding the other. The relative rotation causes axial displacement of the nut 53 in one direction or the other, causing the flange 62 to push one or other of the pins 41 and 42 to pivot each blade 14 into an operative position. Eventually, the fan attains the same speed as the motor 93, and the blades 14 assume an equilibrium position depending on the aerodynamic forces and the spring forces. The flange 61<SP>1</SP> and its associated spring may be omitted.
Patent GB-100812-A (GB)
Title: Improvements in or relating to Locking Devices for Sash Windows or the like.
Inventor: ERAS VINCENT JOSEPH MARIE
IPC: E05C1/06
Filed: 1916-03-28
Abstract: 100,812. Eras, V. J. M. March 28, 1916. Latches, sliding; locks, squarekey.-An automatic locking- device for sash windows comprises a sliding latch bolt 4 actuated by a spring 6 which is adapted to engage a slot in a striking-plate arranged at the side of the window. The bolt is adapted to be locked by means of a follower 9 actuated by a spring 10 and having a slot 17 for engagement by a key. In the position shown in Fig. 1, the bolt is locked bv the engagement of the follower with a recessed portion of the bolt. On turning the follower by means of a separate key, a recessed part 15 of the follower engages a stop 16 on the bolt and retracts this bolt to the position shown in Fig. 2, the bolt being retained in this position owing to the engagement of the squared stop 16 in the correspondingly-shaped recess. The window may then be raised, the striking-plate pressing the bolt back and releasing the stop from the recess, so that the bolt is again locked by the follower when the window is shut.
Patent GB-688385-A (GB)
Title: Improvements in or relating to wheeled vehicles
IPC: B62K9/02
Filed: 1950-02-22
Abstract: 688,385. Cycle frames. WILSON, R. Feb. 22, 1950 [Feb. 24, 1949], No. 4581/50. Classes 136 (ii) and 136 (iii) A wheeled vehicle comprises a chassis, a rear wheel assembly and a seat secured to the chassis, a fork assembly comprising side members 1, 2 having lateral offsets providing a plurality of stepped portions, an aperture in each section to receive extensions 5a, 6a of fork cross members 5, 6, the latter members having central fork rod receiving apertures, a cylindrical fork head 3 and a fork rod 4, the fork assembly being usable in different vehicles of various sizes by varying the length of the fork rod and the number of fork cross bars. The fork assembly forms part of a basic kit the various parts of which may be combined to form either a small or large tricycle, a small or large kiddie car or a bicycle The small tricycle (Fig. 2) and the bicycle (Fig. 6) each have a curved handlebar 8 which is connected by a coupling member 8e to a sleeve 9 or 10 fixed to the head 3 (Fig. 25). In the small kiddie car (Fig. 4) the fork rod 4 is replaced by a headed rod 39 and the handle bar 8 by two straight bars 40. To altach the rear wheels 16 to the axle 27, notches 27e are provided (Fig. 55) for ball bearings 17d held in place by nuts 29. The chassis of the vehicles are formed by members 12, 13, or 14, 15 made of angle iron.
Patent GB-793213-A (GB)
Title: Optical devices having multi-curved surfaces and a method for making same
IPC: G09F19/18
Filed: 1956-02-15
Abstract: 793,213. Distorting - mirrors. HOFFMEISTER, E. W. Feb. 15, 1956 [March 8, 1955], No. 4704/56. Class 52(4) [Also in Groups XV, XX, and XXIII] A mirror or lens giving a distorted image is formed of a pane of glass or metal at least one surface of which has a wave-like form, the shape of the wave in at least one section having a plurality of alternating concave and convex segments of conic sections each containing the vertex of the section, each pair of adjacent segments having a common tangent of a length between zero and the focal distance of the concave segment of the pair and the axes of all the segments being parallel. Three sets of waves in different directions may be superimposed on the surface. The segments may be parts of circles, ellipses, parabolas or hyperbolas and when an object is viewed by reflection or transmission relative movement of the eye, the lense of mirror and the object causes the distortion of the object to change. The shape of surface required is illustrated in Fig. 5 which shows a tray 70 filled with sand the edges 71, 73 of the tray each having the wave shape referred to above so that the sand surface has this shape. To superimpose a second curvature on the sand surface a board 77 having a lower edge 78 shaped to a second wave line is supported by and moved along the edges 71, 73 to vary the surface configuration transversely. To give a third curvature the board in its movement along the edges 71, 73 is supported by a post 81 moving in a curved guide 80 which gives a similar lateral movement to the board 77. In making an actual lens or mirror the surface may be produced by movement of a suitably shaped grinding tool, by casting, or by a combination of the two. Fig. 7 shows a device comprising a number of panes 200 driven in an endless chain by rollers 202, 203 so that an observer 207 views an object 206 by reflection to give the desired distortion effects. In a further modification the endless chain may in addition be moved perpendicular to the plane of the figure.
Patent GB-1240815-A (GB)
Title: Improvements relating to evaporation coating in vacuo
IPC: C23C14/58
Filed: 1970-01-30
Abstract: 1,240,815. Vapour coating. LEYBOLDHERAEUS - VERWALTUNG G.m.b.H. 30 Jan., 1970 [14 March, 1969], No. 4704/70. Heading C1M. [Also in Division C7] At least two coating layers are deposited on a substrate, e.g. of glass, ceramic or plastic, by evaporation in vacuo, at least the outer layer being a protective layer of a silicaceous material and the outer layer at least is mechanically consolidated. The protective layer may be of a glass, quartz or silica and mechanical consolidation is preferably done by surface polishing, e.g. with a revolving roll of felt or cotton. An adhesive material may be provided between coating layers. In an example, glass is exposed to a glow discharge treatment, Cr, Au and Cr are consecutively vapour deposited thereon, followed by a 30,000 A coating of boron silicate glass, which is consolidated by a cotton polishing roll at a pressure of 50 g./sq. cm. and with a peripheral speed of 2.5 m./sec., the roll axis passing over the glass at 0À05 m./sec. The mechanical consolidation enhances the resistance of the protective layer'to abrasion.
Patent GB-267107-A (GB)
Title: Improvements in the process of producing wood pulp
IPC: D21B1/00
Filed: 1927-02-21
Abstract: 267,107. Naamlooze Vennootschap Handelmaatschappij Fibra. March 5, 1926, [Convention date]. Pulp, preparation of.-In the manufacture of wood pulp from logs, boards, wood shavings, or wood waste, the raw material holding its natural moisture content is cut up or otherwise comminuted in a machine 1 then passed to centrifugal machines or disintegrators 2, where it is further subdivided. Broken fibres, sand, and other impurities are next separated in a sifting machine 3. Further subdivision into coarse bundles of fibres is next effected in a dry refiner 6 wherein heat is generated by friction, the natural moisture content being previously restored if desired in a chamber 5. Enough water to make a thick pulp is then added in a vat 7 and the pulp pumped to a wet refiner 9. Coarse material still present is separated bv a strainer 10 and returned to the vat 7, and the strained pulp passes to a drier in the form of a single cylinder machine 11, where it is sheeted, and it may afterwards be prepared for the market in a press 12. Alternatively, the refined pulp may pass direct to a beater and be made into paper, the drier 11 and press 12 then being dispensed with.
Patent GB-964900-A (GB)
Title: Improvements in or relating to apparatus for supplying sheet material to printing machines
IPC: C07D233/78
Filed: 1961-02-09
Abstract: 964,900. Feeding sheets and webs; cutting apparatus. KIMBERLEY-CLARK CORPORATION. Feb. 9, 1961 [Feb. 16, 1960], No. 4910/61. Headings B6B and B6H. A printing machine is supplied either with sheets from a table 35 or with sheets cut from a web 127 unwound from a roll 76 mounted in a removable unit 11. The unit 11, Fig. 1, has a frame 77, Fig. 4, secured by screws 78 to the unit 10 and held horizontally by braces 86 engaging a cross brace 87. If sheet feeding from the table 35 is desired the roll 76 and arms 70 are removed and a pin 112 is removed to permit the frame 110 to drop downwardly. The web 127 is uncurled by a rod 121 bearing on the roll periphery; the reverse bend imparted to the paper increases as the roll 76 decreases in diameter. The web is fed by a roller 100, Fig. 4, and roller 102 pressed into contact with the roller 100 by a spring 105, the roller 100 being driven by gearing in synchronism with a transverse cutter 88. The cutter has spaced apart discs 90, Fig. 9 (not shown), carrying a knife 92, Fig. 8 (not shown), co-operating with a fixed knife 97. Feeding sheets.-Sheets cut from the web are fed by tapes 115, the sheets being held on  the tapes by spring pressed rollers 119 and positioned by paper guides 120b, 120c, and 120d. The sheets are stopped by a stop 58 beneath a suction foot 46 which transfers sheets one at a time from a small pile behind the stop to feed mechanism 55, Fig. 1, having feed rollers 56, 57, Fig. 4, which feed the sheets singly to the unit 11. The table 35 is supported by chains 40 carrying counterweights 42, Fig. 2 (not shown), and passing over sprocket wheels 41, Fig. 4, on a shaft 43 actuated by a crank 45, Fig. 1, actuation of which raises or lowers the table as desired. Sheets on the table 35 are separated by the suction foot 46 secured to a shaft 48, Fig. 2 (not shown), journalled in arms 49 secured to a shaft 50. Actuation of the shaft 50 by a lever 51 causes oscillation of the foot 46 as illustrated in Fig. 3 (not shown), to feed sheets singly into the bite of rollers 56, 57.
Patent GB-113867-A (GB)
Title: Improvements in Holders for Condenser Lenses.
IPC: G02B7/02
Filed: 1917-04-10
Abstract: 113,867. Thornton-Pickard Manufacturing Co., and Pickard, A. G. April 10, 1917. Optical-projection apparatus.-Condenser lenses A are held by their edges in grooves in double clips B which are secured around an opening in a plate C by means of lugs b. One or more of the clips may be integral with the plate C.