baber/WOPTO huggingface dataset:
Patent GB-790095-A (GB)
Title: Improvements in or relating to hanging folders for filing cabinets
IPC: B42F21/04
Filed: 1956-04-12
Abstract: 790,095. Indexing; filing papers. RUEGGNAEGELI & CIE AKT.-GES. April 12, 1956. [April 14, 1955], No..11228/56. Classes 16 and 146(1)  In a suspension folder 1, 2 having supporting rods 4 disposed in sleeves 3 at the upper edges of the folder, an excision 5, extending to the upper edge, is formed in the sleeve 3 of the first cover 1 and in which a protective and retaining window 6 is held by lateral tabs 6a inserted between the outer wall of the sleeve 3 and the supporting rod 4, the window 6 having an upper marginal portion 6b projecting above the edge of the folder and. bent backwards and folded -to grip a label 7 disposed at the back of the window 6. The height of the marginal portion 6b is such as to show one line only of writing and the angle chosen so that all the indexes can be seen in a stack, the excisions 5 all being centrally placed. A scale 8 may be disposed along the top of the cover 1 for distinguishing data by means of indicators. The first supporting rod 4 is curved in cross-section to strengthen the rod and to act as a spacing strip. The rods 4 are preferably glued into the sleeves 3 to prevent shifting
Patent GB-459631-A (GB)
Title: An improved cartridge belt
IPC: F42B39/08
Filed: 1936-04-20
Abstract: 459,631. Cartridge belts for machine guns. BERGMANN, T. E., 11, Am Park, Schoneberg, Berlin. April 20, 1936, Nos. 11245, 11246, and 11247. Convention dates, April 29, 1935, Oct. 26, 1935, and Dec. 14, 1935. [Class 92 (ii)] A cartridge belt comprises metal links 5 provided with hinge sockets located in the middle plane of the belt and adapted to receive readily removable hinge-pins 12. The hinge sockets are formed by stamping out and curling over lugs 7 from the links in such manner as to leave continuous longitudinal portions 8 at the upper part of the cartridge-holding clips. Flat springs 9 prevent unintentional endwise movement of the cartridges. The hinge-pins are cylindrical over the length engaging in the hinge sockets and may be ordinary split cotter pins, solid pins 12<a> with split ends 14, or solid pins with a groove 16 into which a protuberance 17 on the hinge socket may snap, and with or without split ends 14. The split ends may be enlarged to increase their strength. To prevent slackening of the cartridge in the clip owing to tension in the belt, spring tongues 19, Fig. 11, formed by slitting the holder down to the base may be provided. The hinge sockets may be pressed out as at 22 from the holders or may be formed by slitting and curling over a part of the holder. Separating sections 3 may be provided at intervals, comprising parts 10, 11 coupled by a cartridge.
Patent GB-978518-A (GB)
Title: Method and apparatus for the spectrum examination of materials
IPC: G02B3/00
Filed: 1962-03-23
Abstract: 978, 518. Spectrometry; optical elements. BARNES ENGINEERING CO. March 23,1962 [Oct. 4, 1961], No. 11252/62. Heading G2J. A radiation transparent plate 10 for use in spectral analysis work has an optically flat rear surface and a front one which is repetitively corrugated, for example as in the cross-section shown in Figs. 2 or 3. A sample 17 of material to be analysed may be deposited on or held in direct contact with said rear surface. Radiation reflected as at A and B which has undergone attenuated total reflection will then contain absorption bands characteristic of the material 17, which bands may be investigated using a spectrometer. Materials specifically mentioned for the plate 10 are zinc sulphide, thallium bromium iodide, silver chloride, calcium fluoride, barium fluoride, alkali metal halides such as sodium chloride, potassium bromide or cesium fluoride, transparent plastics such as polymethyl methacrylate, quartz and glass. The corrugation may be produced by dye stamping or by machining (in the case of border materials).
Patent GB-405834-A (GB)
Title: Improvements in pillar brackets for microscopes
IPC: G02B21/00
Filed: 1933-04-18
Abstract: 405,834. Microscopes. ZEISS, C., [Firm of], Carl-Zeiss-Strasse, Jena, Germany. April 18, 1933, No. 11262. Convention date, April 25, 1932. [Class 97 (i).] The pillar bracket of a microscope is provided at its upper end with a slide guide for the observation parts, the guide lying in a plane which is inclined at an acute angle to the optical axis. The inclined guide l is formed in the lower part of an annular cylindrical body b secured by a screw d to a corresponding cylindrical surface c at the extremity of the bracket a. The guide may receive a slide m carrying an objective nose-piece n, and in this case the inclination of the slide guide is such that its plane is at rightangles to the axis of rotation o of the nose-piece. Alternatively the slide may carry an objective p. The direction of movement of the slide along the guides l lies in the plane of symmetry of the bracket a. The upper part of the body b receives a housing f containing a prism g by which the rays are deflected into the direction of the eyepiece socket i.
Patent GB-1184941-A (GB)
Title: Fluid Flow Regulating Valves
IPC: F16T1/38
Filed: 1967-03-10
Abstract: 1,184,941. Valves. KLEIN, SCHANZLIN & BECKER A.G. 10 March, 1967 [18 March, 1966], No. 11281/67. Addition to 980,926. Heading F2V. [Also in Division F4] A thermostatically controlled valve for discharging condensate from a vapour flow line when the condensate temperature falls below a selected value, comprises a valve body having a condensate chamber and an outlet 2, a valve seat 3 arranged around the outlet, and an outlet duct 4 of greater cross-sectional area than the outlet, the outlet constituting a first restrictive surface, at least two surfaces 10 and 11 bounding throttling orifices inside the duct, a closure member 5 movable axially inside the duct by a resilient bi-metallic thermostatic device located in the chamber, and including an element 7 of larger cross-sectional area than the outlet 2 to selectively provide boundary surfaces for the throttling orifices 10 and 11 in accordance with its position in the duct, the arrangement being such that when the valve is closed the cross-sectional area exposed to condensate is less than when the valve cracks open whereupon the increased area exposed to discharging condensate increases the thrust which snaps it to its fully open position where it remains until the closing force of the thermostatic device exceeds the thrust produced by the pressure drop across the orifices 11 whereupon the member 5 closes until the orifice 10 becomes effective whereupon condensate still discharges at a lower rate until the closing force exceeds the opening thrust exerted by the pressure drop across the orifice 10 and the valve snaps shut. More than two orifices can be disposed downstream of the outlet.
Patent GB-1283478-A (GB)
Title: Improved appliances for use in stretching footwear or the like
Inventor: SIBSON RICHARD
IPC: A43D3/08
Filed: 1970-03-10
Abstract: 1283478 Boots &c R SIBSON 19 April 1971 [10 March 1970] 11356/70 Heading A3B A footwear stretcher comprises a pair of arms A which are pivoted at B and carry, at their operative ends, shaped portions C while their opposite ends A1 act as handles. A locking collar F is slidable on one of the arms A and abuts the other at its chamfered edge F1. Holes G may be provided in portions C to receive local stretchers H.
Patent GB-113702-A (GB)
IPC: F16H55/18
Abstract: 113,702. British Thomson - Houston Co., (General Electric Co.). March 30, 1917. Toothed wheels.-To render silent gears made from compressible material, such as fabric, raw hide, &c., held between metallic shroudings, the sides of the teeth on the shroudings 6, 7 are removed to bring them below the sides of the teeth on the compressible material 5, as shown at 10, so that the shroudings do not normally make contact with solid metal teeth geared with them. Instead of diminishing the teeth on the shroudings, the edges of the solid metal teeth may be removed.
Patent GB-1430880-A (GB)
Title: Current limiting sand fuse
IPC: H01H85/18
Filed: 1974-03-14
Abstract: 1430880 Fuse RTE CORP 14 March 1974 11388/74 Heading H2G A cartridge-type fuse comprises two fusible elements in series, a first quick-acting element for relatively high fault currents and a second element for lower fault currents of relatively long duration. A fusible element of Ag or Cu 16 is connected to a fusible tin element 20 by a conducting plug 21. The tin element is enclosed in a sleeve 22 which may be of silicone rubber and the resultant assembly 18, in series with element 16, is enclosed in a tube of predetermined length 10 sealed by conducting caps 12 and packed with granular refractory material 15 such as sand. The element 16 may be wire or perforated or notched strip. When element 16 is a silver wire, that there is an endothermic reaction between the silver (on fusing) and the sand, the resultant fulgurite being non-conducting.
Patent GB-751274-A (GB)
Title: Photograph album leaf
IPC: B42F5/00
Filed: 1954-04-20
Abstract: 751,274. Albums; picture mounts. MILLER, R. April 20, 1954 [March 18, 1954], No. 11402/54. Class 11. An album leaf 21 comprises at least two sheets, each sheet being provided with a set of mounts 22 engageable with edge portions of a photographic print 23 and with a second set of mounts 24 is spaced in relation to the first set for engaging portions of a negative 26 adapted to be located behind the photographic print. The mounts may be constituted by slits, flaps, or independent mounts and the portion 25 of the sheet upon which the prints are mounted may be embossed. When the negatives are the same size as the prints, flaps may be provided intermediate the slit 22 (Fig. 6, not shown). The slits for mounting a negative may comprise four corner slits as shown, two longer slits (Fig. 7, not shown), or two longitudinal slits (Fig. 8, not shown). Alternatively a strap may be provided for holding the negative (Fig. 9, not shown). The album leaf is preferably made up from a blank of material folded upon itself to form three sheets 28, 29, 30 of which the sheets 28, 29 are provided with the mounting means while the sheet 30 is folded between the sheets 28, 29. The sheets 28, 29, 30 may alternatively be separate and secured together at their edges.
Patent GB-852348-A (GB)
Title: Improvements in or relating to a change speed gear, especially for motor vehicles
IPC: B60K17/28
Filed: 1957-04-08
Abstract: 852,348. Variable-speed gear. ZAHNRADFABRIK FRIEDRICHSHAFEN A.G. April 8, 1957 [April 7, 1956], No. 11436/57. Class 80 (2). [Also in Group XXXI] A power take-off shaft 39, Fig. 1, may be driven through a pair of gears 4, 5 from the input shaft 3 of transmission gearing in which a continuously variable ratio gear 16 drives a stepped ratio change-speed gear. The output shaft 23 of the latter drives the differential gear 45. When a clutch 7 is disengaged, the vehicle is stationary and the shaft 39 is connected by a slidable coupling 40 to a gear wheel 42 fast with a shaft 6 driven by the gears 4, 5. When the clutch 7 is engaged the shaft 39 is driven through the transmission gearing by engaging the coupling 40 with a double gear 30, 37 freely mounted on the shaft 6 and driven by a gear wheel 28. The latter is freely mounted on the shaft 23 and driven by dogs 26, 29 from a slidably-splined double gear 24, 25 driven by a gear 21. The double gear 24, 25 may also be driven by a gear 20. The gear 25 also drives the gear 28 and hence the shaft 39 when it is engaged with a gear on a reversing shaft 50, The vehicle may be driven through the shaft 6 when the clutch 7 is disengaged by engaging the dogs 26, 29 and dogs 32, 34 which connect the double gear 30; 37 to a sleeve 35 slidably splined to the shaft 6. A modification is described in which the shafts carrying the gears are not coplanar. In a further modification, the shaft 10 and clutch 7 are driven by gear wheels from the shaft 3 and the shaft 19 is driven from the shaft 12 by an intermediate shaft. The latter may be directly coupled to the shaft 23 by a dog rim at one end of a double gear slidably splined on the shaft 3 and arranged to co-operate with the double gear 30, 37, the gear 28 being dispensed with. In Fig. 7, a shaft 6 arranged within a shaft 12 forming part of the transmission gearing may be connected by a gear 42 and a slidably splined coupling 40 to a power take-off shaft 39 or by a slidably splined sleeve 35 and dogs 32 to a gear 30 which is connected to the output shaft 23 by a gear 28, dogs 29, 26 and a double gear 24, 25, the gears 28 and 30 normally being freely rotatable. The power take-off shaft is driven through the transmission gearing when a clutch 7 is engaged to drive the vehicle.
Patent GB-474039-A (GB)
Title: Improvements in optical projection apparatus
IPC: G03B21/06
Filed: 1936-04-22
Abstract: 474,039. Episcopic-projection apparatus. KNOTT, C. W. April 22, 1936, No. 11447. [Class 97 (i)] An episcope comprises a double-walled substantially cylindrical casing a, b, c, d, containing a plurality of lamps l each having a parabolic reflector o for illuminating the object field p, and arranged in a ring about the axis of a wide-aperture projection lens m, air currents flowing between the walls of the casing and through the lamp chamber to cool the apparatus and the object field. The projector is mounted to rotate about a horizontal axis, the design being such that cooling air currents flow in all positions. The casing comprises four basinshaped elements a, b, c, d in the form of truncated cones fixed together at their edges by bolts and ferrules e so as to leave an opening extending round the periphery. The object is held by a band 5 against a glass plate q opposite the window p and is cooled by air. Each reflector o has an opening 20 for the passage of cooling air and vents 18, 19 are provided, the path of the air being indicated by arrows. A projection lens n is mounted in a tube f slidable in an outer tube f and arms 9 carry a reversing mirror: The inside of the casing may be lined with asbestos 14, and a ring r carries the frame s supporting the casing in an outer frame.
Patent GB-692125-A (GB)
Title: Chaff cutting machine
IPC: A01F29/04
Filed: 1951-05-06
Abstract: 692,125. Chaff cutters. GRIEFF, F. May 16, 1951 [May 20, 1950], No. 11459/51. Class 5(i) Chaff is cut between stationary cutters 9, Fig. 3, and rotary cutters 4 mounted on a hollow shaft 5 in an air channel 3 which sucks the chaff from the hopper 1 through the cutters, the shaft :5 being directly driven from a fan shaft 6 projecting into the end of the shaft 5, and driving it by friction or by a safety shearable coupling 7. The chaff then passes to another similar set of co-operating cutters 9, 12, but with closer spacing to cut more finely, after which the chaff passes through the fan 2 for delivery through a pressure pipe 14. The rotating cutters 12 are also fixed' on the shaft 5.
Patent GB-680933-A (GB)
Title: Improvements in or relating to the manufacture of shoes
IPC: A43D23/00
Filed: 1950-05-09
Abstract: 680,933. Boot machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., and GUDGER, J. May 8, 1951 [May 9, 1950], No. 11478/50. Class 17 (i). A machine for making a plurality of slits in the lasting margin of a shoe upper at the curved end portions according to the method of Specification 623,657 operates while the shoe is on a last and after a preliminary tensioning operation and comprises means to engage the shoe bottom to determine the depth of the cut inwardly from the edge of the upper as it is fed stepwise past a slitting device. A shoe on a last is held against a bottom rest 13 having a substantially vertical face, bent to a U-shape in plan, for engaging the shoe bottom thus determining the depth of the cut. A pair of feed rollers 15, 16 (not shown), are rotated intermittently to give a stepwise feed to the upper over a shear block 5 by mechanism similar to the prior Specification. The roller 16 may be raised to insert the upper by depressing a link 29. A knife 39 oscillates as in the prior Specification to effect the slitting of the upper which is held against the shear block 5 by a presser member 61 operating in timed relation with the knife and feed mechanisms. Specifications 470,749 and 660,036, [Group VIII], also are referred to.
Patent GB-1454916-A (GB)
Title: Electron gun assembly for colour picture tube
IPC: H01J3/02
Filed: 1974-03-14
Abstract: 1454916 Colour television tubes HITACHI Ltd 14 March 1974 [5 Oct 1973] 11531/74 Heading H1D An in-line three-gun assembly for a colour television tube, in which the outer guns G R  and G B  are tilted with respect to the central gun Go to produce convergence of the beams, is supported by fixing the final electrode 82, Fig. 5, of only the central gun to the pole-piece cup 12, e.g. by spot welding. Dispensing with the additional fixing of the two side guns to the pole-piece cup is stated to improve convergence by avoiding displacement of the side guns from their correct positions. The three guns are secured to the glass rods 9 by the supports 11, and the pole-piece cup is mounted in the tube by the spacers 13.
Patent GB-816759-A (GB)
Title: Improvements in and relating to fabric display devices
IPC: A47F7/18
Filed: 1957-04-09
Abstract: 816,759. Displaying. GIOVETTI, G. April 9, 1957 [April 9, 1956], No. 11544/57. Class 3(2) [Also in Group XIV] A dummy for displaying fabric comprises a plate 2 having a slit 4 outlining the major portion of a figure 1 which is resiliently connected, to the plate at the discontinuity 3 of the slit, the figure being displacable out of the plane of the plate for draping with an unsevered part of a bolt of fabric which is gripped between the figure and the plate when the figure is returned to normal position. The figure is preferably embossed and provided with auxiliary slits permitting the jarms of the dummy to be draped with a different piece of material. The device is preferably made of a synthetic plastic.
Patent GB-571750-A (GB)
Title: Nitriles and polymers thereof
IPC: C08F20/50
Filed: 1943-09-02
Abstract: Nitriles having the formula Cl.R1C=CX.CN in which R1 is hydrogen or chlorine and X is hydrogen, chlorine alkyl or chloralkyl are obtained by heating to 450-550 DEG  C. at 200 mm. of mercury nitriles having the formul  Cl3CCHRCN, wherein R is hydrogen alkyl or chloralkyl, HCl2CCHR1CN, wherein R1 is hydrogen, chlorine, alkyl or chloralkyl or H2ClCCClR11CN, wherein R11 is hydrogen, chlorine or alkyl.  The products may be polymerized alone or in association with isoprene, butadienes, 2 : 3 - dimethyl - 1 : 3 - butadiene, chlorprene, dichlorbutadiene, acrylic nitrile, methylacrylate, ethylmethacrylate, diethylitaconate, dibutylitaconate, dichloracrylates, dibromacrylates and methacrylic nitrile.  a  : b -Dichlorpropionitrile, a  : a  : b -trichlorpropionitrile and dichlorisobutyronitrile are mentioned as starting materials.  For the polymerization, the monomers are heated with agitation in a glass-lined container with an emulsifying agent, a buffer such as phosphate citrate and a catalyst such as carbontetrachloride.  The properties of polymerized products of a  : b -dichloracrylonitrile and butadiene and of those also containing ethacrylonitrile, butylacrylonitrile, ethylmethacrylate, dibutylitaconate and methylchloracrylate are tabulated. Specification 572,298 is referred to.
Patent GB-979152-A (GB)
Title: Improvements in and relating to agricultural implements
Inventor: CHAMBERS JOHN MALET
IPC: A01B59/06
Filed: 1960-04-02
Abstract: 979,152. Agricultural implements. MASSEY-FERGUSON (UNITED KING- DOM) Ltd. March 6, 1961 [April 2, 1960], No. 11734/60. Heading A1B. An agricultural implement comprises a tool frame 21 pivotally mounted on a shaft 15 forming part of a main frame 17 which is attachable to a tractor power lift, the frame 21 being provided with wheels 39 mounted on members 37 connected by a rotatable transverse shaft 35. Stops 45, 46 limit the movement of the wheels 39. The wheels are of substantial weight so that they are urged downwardly by a force sufficient to tilt the frame 21 about the shaft 15 so as to lower the frame at either side relative to the main frame when only the wheel at the opposite side is supported by the ground. The heavy wheels may be replaced by wheels of normal weight which are urged downwardly by spring means. Reference has been directed by the Comptroller to Specification 870,501.
Patent GB-198530-A (GB)
Title: Improvements relating to the manufacture of coal-gas
IPC: C10B3/00
Filed: 1922-04-26
Abstract: 198,530. Underfeed Stoker Co., Ltd., and McEwen, S. April 26, 1922. Pulverulent-fuel furnaces.-In a process of carbonizing pulverised coal for making coal gas the powdered coke is burned and the heat of combustion is imparted to the coal gas produced which is passed up through the retort. The retort a which is fed with pulverised fuel is tubes of a boiler c to the flue m and part is drawn through port h' into the recuperator h. flanked by combustion chambers b which serve to heat water-tube boilers c. The powdered coke passes from the retort to a conveyor i and is raised to a bin k from which it is fed to burner nozzles l<3> in the combustion chambers. Part of the combustion products passes over the where it passes through the 'tubes and port h<2> to the flue m.
Patent GB-527686-A (GB)
Title: Improvements in and relating to hygrometers
IPC: G01N27/12
Filed: 1939-04-19
Abstract: 527,686. Hygrometric apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. April 19, 1939, No. 11799. Convention date, April 21, 1938. [Class 97 (iii)] A hygrometer formed of an element whose electrical conductivity varies with changes in humidity comprises a conducting base 11 for example, made of aluminium, chromium or steel, coated with a thin film 12 of hygroscopic material such as a metallic oxide which is covered with a very thin conducting material 13 such as a metallic foil. The hygroscopic material may be deposited electrolytically and the covering metallic film may be formed of gold leaf or may be applied by an evaporating or sputtering process. The element 17 is connected in circuits by terminals 15, 16 to give direct readings, Fig. 3, or to control other apparatus, Fig. 4.
Patent GB-541855-A (GB)
Title: Improvements in and relating to blinds for black-out and like purposes
IPC: E06B9/24
Filed: 1940-07-18
Abstract: 541,855. Window blinds. ABBOTT, A. H. July 18, 1940, No. 11852. [Class 20 (iii)] A blind especially for black-out purposes comprises a length of opaque fabric or stout paper 1 having secured to it at intervals transverse bars 2 through which are threaded a pair of cords 8, 9 which run over pulleys 11 in a top bar 6, through holes in the intermediate bars and are secured at 8a, 9a to a bottom bar 7. On pulling a common pull-cord 14, the lowest bar 7 and each bar 2 in turn is drawn upwards so that the blind is folded as shown in Fig. 4. When extended, the blind forms a continuous flat surface against the window or window frame.
Patent GB-1380137-A (GB)
Title: Apparatus for printing selectively on envelopes or on tape
IPC: G07B17/00
Filed: 1972-03-14
Abstract: 1380137 Franking machines PITNEYBOWES Inc 14 March 1972 [18 March 1971] 11889/72 Heading B6D A franking machine for printing either on letters or tape t comprises a printing means 10 which when actuated causes a letter supported on a platen 30 to be impressed and then ejected by rollers 48, 50, 52 operable in response to pivoting of an interlock 36 acted upon by a pin 34 and an interposer 42 and a tape carrier 180 mounted slidably on a bar 182 between a retracted position and an operative position at which the carrier 180 is overlying the platen 30. When the carrier 180 moves to its operative positions it also enables a drive means which actuates a pawl-and-ratchet tape feed mechanism and disables the letter eject mechanism by removing the interposer 42 from its disposition between the interlock 36 and the pin 34.
Patent GB-290659-A (GB)
Title: A device for use in the manufacture of felt, batting and the like
IPC: D04H1/72
Filed: 1928-04-23
Abstract: 290,659. Wuest, E. T. May 19, 1927, [Convention date]. Carding-engines; openers etc.; feeding carding- engines, openers, &.-Apparatus for treating cot-