baber/WOPTO huggingface dataset:
Patent GB-834135-A (GB)
Title: Improvements in or relating to pyrometric apparatus
Inventor: CURTIS PETER BRYAN
IPC: G01J5/04
Filed: 1957-02-06
Abstract: 834,135. Optical systems: pyrometers. GENERAL ELECTRIC CO. Ltd. Feb. 6, 1958 [Feb. 6, 1957], No. 4126/57. Classes 97(1) and 97(3) [Also in Group XL(b)] Thermal radiation is transmitted to a heat-sensitive device in a pyrometer through an elongated member 7 of material transparent to thermal radiation, the elongated member being provided at one end with an end face 8, adapted to be disposed adjacent to a surface or within a space the temperature of which is to be measured, and shaped at the other end to provide a converging lens which directs radiation transmitted by the member on to the heat-sensitive device, the surface of the elongated member between its ends being provided with reflection means to prevent leakage of radiation. The member 7 may be of quartz. The surface of the member between the ends may be silvered or may be so shaped that, over the greater part of its length, radiation impinging upon the surface does so at an angle greater than the critical angle. As described, the member 7 is cylindrical for the greater part of its length and is of flattened cross-section of increasing width and decreasing thickness towards a flat end face 8. A quartz protective envelope 9 is fused at one end to the flattened portion of the member 7 and is provided at its other end with a flange which is clamped by a screw threaded collar 10 on to a screw threaded boss on to the casing of a thermopile. The outer surface of the envelope 9 is silvered over that portion of the envelope which is joined to the member 7. The apparatus described is particularly suitable for the measurement of surface temperature of a workpiece undergoing heat-treatment by high frequency induction heating. Specification 834,134 is referred to.
Patent GB-969256-A (GB)
Title: Improvements in or relating to epoxy resin compositions
Inventor: FULMER RICHARD WARREN
IPC: C08G59/50
Filed: 1962-02-02
Abstract: A heat-curable composition comprises a mixture of a polyglycidyl ether of a polyhydric phenol and a guanamine of the formula <FORM:0969256/C3/1> <FORM:0969256/C3/2> <FORM:0969256/C3/3> or <FORM:0969256/C3/4> where R is a fatty aliphatic hydrocarbon radical containing from 4 to 21 carbon atoms and R1 is the divalent hydrocarbon radical of a dimerised unsaturated fatty acid.  Specified polyhydric phenols are resorcinol and bis-phenol-A.  The compositions may be partially reacted to a stable curable B-stage resin.  The examples disclose compositions of epoxy resins derived from bis-phenol-A and epichlorohydrin and: (1) and (3) soya guanamine; (2) soya guanamine and aluminium oxide; (4) a guanamine derived from hydrogenated tallow fatty acids and alumina; (5) a guanamine derived from the mixed C6-C10 acids of coconut oil; (6) hydrogenated tallow guanamine and kaolin; (7) lauroguanamine, kaolin and glass fibres; (8) and (12) a guanamine of formula D in which R is the hydrocarbon residue of dimerised linoleic acids; (9) and (13) a guanamine of formula C where R is C12H25; (10) a guanamine of formula B where R is C18H37; (11) and (14) cocoguanamine and (15), (16) and (17), a guanamine of formula A where R is a C11 alkyl group.ALSO:In Example 17, steel bars are coated with a partially cured mixture of a guanamine of the formula <FORM:0969256/B1-B2/1> where R is a C11 alkyl group and an epoxy resin derived from bis-phenol-A and epichlorohydrin, the coating being cured by heating.
Patent GB-289039-A (GB)
Title: Electric switch
IPC: H01H19/32
Filed: 1928-02-10
Abstract: 289,039. Soc. des Porcelaines et Appareillages Electriques Grammont. April 21, 1927, [Convention date]. Void [Published under Sect. 91 of the Acts]. Switches, quick-action. - Quick - action mechanism for a rotary contact switch comprises a sleeve 5 rotated by the handle, the sleeve being connected by a spiral spring 7 to the rotary switching member 1. The member 1 is of an inverted cup formation and carries a sliding bolt 12 the ends 13, 14 of which project through recesses 15, 16 in the side of the member 1. The bolt 12 is formed with. a central aperture 17 one side of which constitutes a rack 18 engaged by a pinion 6 on the operating sleeve 5. The bolt 12 also carries a downturned pawl 19 normally resting in one of the recesses 11 of a fixed ratchet plate 10. On rotation of the operating handle the spring 7 is strained but cannot produce motion of the switching member until the rack and pinion gearing slides the bolt until it escapes past a tooth of the ratchet plate. The switch then snaps over under the action of the compressed spring, the bolt being drawn back during the movement of the switching plate so that it engages the succeeding recess in the ratchet plate and thus arrests the movement of the switching plate. A similar action occurs in moving to successive switching positions.
Patent GB-978501-A (GB)
Title: An electrical insulator
IPC: H01B17/52
Filed: 1963-11-05
Abstract: 978,501. Insulators. SIEMENS-SCHUCKERTWERKE A.G. Nov. 5, 1963 [Nov. 8, 1962], No. 43721/63. Heading H2C. The Figure shows a section through the sheds of an insulator projecting from the main insulator body 1. Each shed has non-parallel sides and tapers in thickness from root to tip. The sides terminate in concave curves 2F, 2G. The dimensions of the insulator satisfy the following requirements:-  l s  (1) The ratio - # 2.5 where l s  is the disb tance over the shed between the points where it joins points curves 2F, 2G, and b is the distance between sheds measured between these points on adjacent sheds. a (2) - # 1 where a is the root width of the b shed measured between these points. (3) b # 11 mm. In the construction of Fig. 3 (not shown), alternate ribs are 10 mm. larger than the intermediate ones and are inclined to a line perpendicular to the insulator axis by 9 degrees. In Fig. 4, also not shown, each shed has one sharp edge to help the water to drop off and there are two small sheds between each pair of large ones. A complete 65 kv. insulator of cast resin with twenty-one large and twenty-one small ribs is described with reference to Fig. 5, not shown.
Patent GB-893502-A (GB)
Title: Liquid level gauge
IPC: G01F23/02
Filed: 1960-02-08
Abstract: 893,502. Gauge glasses, WEGNER MACHINERY CORPORATION. Feb. 8, 1960, No. 4418/60. Class 123(1). A liquid level gauge particularly for use with dark sticky liquids, e.g. certain grades of fuel oil, comprises a rectangular jewel-type window having a rectangular body portion 20 which is provided with a raised inner strip 21 with mutually-vertical facets 22, 23 of sawtooth configuration and an outer raised portion 26 with light-catching flat and bevelled surfaces 27 and 28-31 respectively. The transparent material of the window 13 is chosen with an index of refraction which is substantially the same as that of the liquid, e.g. oil 14, whose level it is desired to ascertain. Due to the substantial difference between the refractive indices of the material of the window gauge and air most of the light, which falls on to the outside surfaces 27-31 and which penetrates the window above the level of the liquid 14, is returned by almost total reflection from the facets 22, 23. Below the surface of the liquid 14 the light rays, which are not refracted sufficiently to become reflected to any appreciable extent, pass on into the liquid. In order to increase the reflection effect two rows of vertically aligned V-notches 32 are cut into the intersecting edges of the facets 22, 23. In order to fit the gauge a rabbeted opening is formed in a wall 12 of the tank 11 containing the liquid 14 to receive the peripheral edge of the body part 20 of the window which is retained by a plate 16 secured e.g. by screws 17 to the wall 12. In a modification the plane single side facets 28-31, are replaced by double-facets.
Patent GB-176233-A (GB)
Title: Improvements in means for controlling the compression in the cylinder of internal combustion engines
IPC: G01L23/02
Filed: 1921-02-07
Abstract: 176,233. Gehre, M. Feb. 7, 1921. No Patent granted (Sealing fee not paid). Cylinders, varying clearance of.-Engines having a floating piston c in the cylinder head for adjusting the compression are provided with a device for locking the piston c at the instant of the explosion. The device comprises a wedge f which is thrust between a block c on the piston rod d and the guide for the block e on the cylinder cover. The wedge may be actuated mechanically through a resilient lever h as- 'for instance by the main piston b impinging on a rod v and acting through the lever y and link m, or a piston on the rod v and acted upon by the pressure of the cylinder may be connected to the wedgeby a simple lever.
Patent GB-621304-A (GB)
Title: Improvements in mudguards for perambulators and the like
IPC: B62B9/16
Filed: 1947-02-15
Abstract: 621,304. Mudguards. HOCKLEY MUDGUARDS Ltd., and WASDELL, E. T. Feb. 15, 1947, No. 4443. [Class 136 (i)] In a perambulator or like mudguard of the kind having radial stays 2, 3 with a central screw-actuated clamping device securing the stays to a standard axle, one end of the clamping strap 11 is provided with a lug 12 which can be threaded through a hole 9 in a stay 2 to form an end anchorage about which angular movement of the strap is 'permitted. The clamping strap is raised from a sheet metal blank into an approximately channel section and one or both limbs 13 of the section are extended into an abutting hook-like lug or lugs 12.
Patent GB-700057-A (GB)
Title: Improvements relating to dielectric heating systems
IPC: H05B6/48
Filed: 1952-02-20
Abstract: 700,057. Load coupling arrangements. ATELIERS DE CONSTRUCTIONS ELECTRIQUES DE CHARLEROI. Feb. 20, 1952 [Feb. 21, 1951], No. 4466/52. Class 40 (5) In an arrangement for coupling the load circuit in a dielectric heating system to the H.F. generator, in which the load circuit comprises a capacitor 21, between the plates of which the material to be treated is located, connected in series with a rectangular loop 22, the loop 22 is surrounded and screened by a tubular metallic casing 23 which is connected to earth, and is insulated from the capacitor 21 by air gaps. A metal sleeve 24 within the casing 23, which surrounds the loop 22 over a part of its length, is provided with an annular flange which is attached to the casing 23, and through a conductor 11 enclosed within a casing 12, provides a coupling with the anode circuit of the oscillator. The anode circuit includes a capacitor 13 and an inductor consisting of a conductor 14 surrounded by a metallic casing 15.
Patent GB-156429-A (GB)
Title: Process for the manufacture of initial explosive priming compositions
IPC: C06B41/08
Filed: 1920-02-14
Abstract: 156,429. Eschbach, W. Feb. 14, 1920. Explosives.-Consists in making priming compositions by mixing lead azide with lead trinitroresorcinate or other easily explosive compounds, in the presence of a phlegmatizing-liquid of low boiling-point, for example benzol in which a small quantity of resin has been dissolved. The benzol is evaporated off, but the resin remains in the composition.
Patent GB-813075-A (GB)
Title: Improvements in dial indicator gage
IPC: G01B5/00
Filed: 1957-02-11
Abstract: 813,075. Dial gauges. STANDARD GAGE GO. Inc. Feb. 11, 1957 [Feb. 10, 1956], No. 4598/57. Class 106 (2). A dial gauge comprises a housing 10, primary and secondary levers 16, 34, pivotally mounted in the housing, each overlying the other at one end a contact member 20 on the primary lever' 16 and projecting outside the housing, a dial indicating unit 43 mounted on the housing, a shaft 52 for operating the pointer 53, the free end 34<SP>1</SP> of the lever 34 engaging a helical surface 57 on the shaft 52, means 27, 36; 28, 38 interconnecting the levers 16, 34 for causing the secondary lever 34 to move in the same direction for two directions of movement of the contact member 20 and resilient means 40 acting on lever 34 for holding all the parts in rest position. Lever 16 is pivoted at 13 and lever 34 at 31. Pins 27, 28 engage surfaces 36, 38 respectively on lever 16, these surfaces being aligned on the central line of lever 16. Thus operation of the contact member 20 in either direction causes movement of lever 34 clockwise as viewed in Fig. 3. Furthermore, the positions of pins 27, 28 are such that the transmission ratio between the two levers is the same for either direction of motion of member 20. The action of end 341 of the lever 34 on surface 57 is resisted by a hair-spring 54, thus eliminating backlash between the pointer shaft 52 and the lever 34. The contact member 20 has a portion 19 having a serrated edge 18 which mates with a similar serrated edge 17 on lever 16, Fig. 4. The serrations are held together by a spring 21 and so the member 20 can be turned angularly with respect to the lever 16 by disengaging the serrations. Alternatively a longer or shorter member 20 may be placed in position to give a different amplification. Figs. 6, 7, 8 (not shown), describe the application of the instrument to measuring the distance of a workpiece face from a machine shaft.
Patent GB-960274-A (GB)
Title: Improvements in or relating to joints for pipes of synthetic resinous and like material
IPC: F16L19/00
Filed: 1961-02-08
Abstract: 960,274. Pipe joints. CONEX-TERNA Ltd., and F. WHITWORTH. Feb. 6, 1962 [Feb. 8, 1961], No. 4630/61. Heading F2G. A pipe joint comprises a hollow supporting member 11 on which a nut 13 having a tapered thread is slidably mounted. The supporting member 11 forms an interference fit within a synthetic resin pipe 10 the nut being screwed on to the end of the pipe 10 to effect the joint. The nut possesses an inwardly-projecting flange 17 which co-operates with a stop 12 formed in the outer surface of member 11. In the construction shown the included angle of the taper should be not more than 10 degrees and is preferably 8 degrees. The flange 17 includes a gap so that the nut 13 may slide over stop 12. The end of member 11 co-operating with pipe 10 is slightly flared outwardly or tapered inwardly. A beading may be provided adjacent the end of member 11 with which flange 17 of nut 13 co-operates. Specification 810,628 is referred to.
Patent GB-1174016-A (GB)
Title: A Fluid Pressure Responsive Switch Device
IPC: H01R13/70
Filed: 1968-01-30
Abstract: 1,174,016. Fluid actuation of switches. AMP Inc. 30 Jan., 1968 [21 Feb., 1967], No. 4659/68. Addition to 1,149,719. Heading H1N. [Also in Division F2] In a fluid-pressure responsive switch according to the parent Specification in which an imbalance of pressure between two master cylinders of a vehicle braking system causes movement of a shuttle 22, Fig. 1, to energize a warning lamp 84, the switch has an additional terminal 72 for connection to a test switch 78 whereby the warning lamp circuit can be energized to check that it is operating.
Patent GB-129229-A (GB)
Title: Improvements in Apparatus for Counting Threads in Textiles.
Inventor: HERON WILLIAM THOMAS
IPC: D03J3/00
Filed: 1919-02-25
Abstract: 129,229. Heron, W. T. Feb. 25, 1919. Testing and inspecting.- Apparatus for facilitating the counting of the threads in textile fabrics comprises a collapsible box D with a plain glass or transparent cover B through which light entering the box through an open side F is reflected by a reflector A or a prism on to the fabric C. The various sides of the box are hinged to one another, so that when the box is collapsed the sides may be folded for carrying in a case.
Patent GB-1004543-A (GB)
Title: Phototropic glass article
IPC: C03C4/06
Filed: 1964-02-04
Abstract: A composite glass body of which a portion exhibits phototropicity is made by melting a batch for a glass composition which upon heat treatment will exhibit phototropicity, cooling to at least within the heat treatment temperatures range and shaping a body, heat treating said portion only of the body by exposing it to a temperature of 400-1000 DEG  C. for a time sufficient to precipitate submicroscopic radiation-sensitive crystals, and cooling to room temperature.  In Fig. 1, glass plate 3 is inserted <PICT:1004543/C1/1> <PICT:1004543/C1/2> into slot 2 of heat-insulating block 1.  The assembly is then exposed to heat-treatment, after which the enclosed portion is still nonphototropic and the exposed portion has become phototropic: there is a more or less sharply defined line of demarcation.  In Fig. 3 is illustrated an apparatus for continuous operation, showing the forward end of a heat-treating furnace divided by gate 16 into section A at 300-350 DEG  C. and section B at 400-1000 DEG  C., so that the portion of glass 15 passing through B is rendered phototropic while that passing through A is not.  In another arrangement, refractory gate 16 may be omitted, and the glass 15 passed through the furnace at such a rate that the portion under the gas burners of section B is exposed for a time sufficient to develop phototropicity, whereas the remainder of the sheeting is at a temperature sufficiently low for the exposure time to be insufficient to produce phototropicity.  In this case, the line of demarcation between the two glass portions will not be sharp.  Heat treatment time may range from 1 minute at 1000 DEG  C. to 24 hours at 400 DEG C. Suitable glass compositions comprise, in per cent by weight, SiO2, 40-76; Al2O3, 4-26; B2O3, 4-26, at least one alkali metal oxide being Li2O, 2-8; Na2O, 4-15; K2O, 6-20; Rb2O, 8-15; or Cs2O, 10-30; at least one halogen being:  Cl, at least 0-2; Br, at least 0-1; or I, at least 0.08; Ag in the following minimum percentages: 0.2 if Cl is the effective halogen; 0.05 if 0.1% Br but less than 0.08% I; 0.03 if there is at least 0.08% I.  The preceding constituents total at least 85% of the total glass composition.  Also present may be oxides of Su, Fe, Cu, As, Sb, Mg, Ca, Ba, Sr, Zn, Pb and P, and F.  The batch may be melted at 1500 DEG  C., and the articles may be cooled to room temperature before the heat-treatment step. Specification 950,906 is referred to.
Patent GB-525068-A (GB)
Title: Improvements in or relating to gas heated apparatus for the warming of rooms
IPC: F24C3/12
Filed: 1939-02-13
Abstract: 525,068. Humidity maintaining. ASKANIAWERKE-AKT.-GES., and WUNSCH, G. Feb. 13, 1939, No. 4747. [Class 126] A cellulosic diaphragm 8 or like means responsive to changes in humidity varies the position of the valve 5 in the flue taking away the products of combustion of a gas stove and so tends to keep humidity in room constant, as there is water vapour in gases let in. in this way, in varying amounts into the room.
Patent GB-676952-A (GB)
Title: Improvements in or relating to imbibition printing of cinematograph film
Inventor: POHL WADSWORTH EGMONT
IPC: G03C7/22
Filed: 1951-02-27
Abstract: 676,952. Photographic imbibition processes. TECHNICOLOUR MOTION PICTURE CORPORATION. Feb. 27, 1951, No. 4747/51. Class 98 (ii). The method comprises successively pressing dyed matrices against a dye-absorptive blank for successively transferring different dyes to the blank in a plurality of transfer stages in each of which the blank and one matrix are continuously fed in contact along a predetermined path, and before each dye transfer wetting the blank, each wetting after the first dye transfer being effected entirely by spraying liquid against the face of the blank as it approaches the matrix. The spraying may be effected at several places along the path of the blank. Apparatus for carrying out the method is characterised in that each spraying is effected with a nozzle having an outlet in the form of a slit, producing a thin curtain of spray extending across the blank, and preferably impinging obliquely thereon. As shown, the blank film B moves through a long tank 16 over adjustablymounted rollers 17, flanged to hold the film thereon. The hub of each roller 17 is thinner towards the middle, so that the film is sprayed with water from nozzles 18 of slit form, which produce a thin curtain of spray extending across the film B. The water is fed by a supply pipe 24 through regulating valves 28 to the nozzles 18, which are mounted on adjustable joints 26, and directed at an angle of about 60 degrees with the film B. The film B is held always above the level of the water which collects in the tank 16. To print the film, the yellow image is printed on the blank, e.g. by means described in Specification 616,168, and is then sprayed by the nozzles 18. A film matrix is led through a cyan dye tank and a wash tank, and thence to a pin belt, on which it moves in contact with the wetted blank, to which the dyed image is transferred. The matrix is washed, dried, and re-reeled, while the blank is dried, and then sprayed again just before the magenta image is transferred thereto, in the same way as the cyan image.
Patent GB-290737-A (GB)
Title: Improvements in exhaust silencers for internal combustion engines
IPC: F01N1/08
Filed: 1927-02-21
Abstract: 290,737. Parkinson, J., and Wilson, J. Feb. 21, 1927. Exhaust - silencers. - Exhaust gases enter a rectangular casing c at d and are made to follow a zig-zag path by surfaces a<1>, a produced either by bending a single plate or by separate plates. The plates are either welded or riveted to angle-bars b so as to form a structure which can be inserted in the casing, or they may be threaded over bolts which pass right through the casing and are secured to the ends thereof by nuts. The deflecting plate a<1> nearest the inlet is shaped so as to divide the entering gases and cause them to flow in two directions until they pass through apertures a<2>, Fig. 5, into the chamber on the other side, whence they pass through intermediate chambers and apertures a<3> near alternate sides of the casing during their flow towards the outlet e.
Patent GB-524969-A (GB)
Title: Improvements in or relating to warp knitting machines
IPC: D04B27/24
Filed: 1939-02-14
Abstract: 524,969. Warp knitting-machines. F. N. F., Ltd., PEEL, R., and MORRISON, J. L. M. Feb. 14, 1939, No. 4876. [Class 74 (ii)] Relates to warp machines provided with hooked needles and independently operated tongues for closing the hook of the needles when the loops are to be cast off. To prevent damage to the tip of the tongue, or alternatively faulty fabric, the needles and tongues are so operated that throughout a substantial part of the casting- off operation there is little, if any, relative movement between the needles and the corresponding tongues. In the timing diagram shown, the paths of the end of a needle hook and the tip of the tongue are indicated by curves A, B, and the casting-off period extends from m to n. To facilitate lapping of the warp threads, the needle is retained at substantially constant height while the warp guides are passing between the needles before and after lapping. Curve C indicates the swinging movement of the warp guides, and the needles have a dwell period corresponding to the period a, to b. The tips of the tongues are concealed in the needle shanks from the time when the newly formed loops are passing up the tapered parts of the needles to when the warp guides are passing between the needles after lapping. The needles, tongues, sinkers and warp guides are driven by eccentrics acting in parallel and running at different speeds. The driving arrangements for each of these parts are similar and each comprises eccentrics 9, 10, one of which is driven at twice the speed of the other. Eccentric rods 15. 16 are pivoted to the ends of a two-armed lever 19 pivoted at its centre to a rod 6 connected to a bar carrying the needles or other parts.