baber/WOPTO huggingface dataset:
Patent GB-403984-A (GB)
Title: Tool for cutting screw threads
IPC: B23G5/00
Filed: 1932-07-05
Abstract: 403,984. Chasers. VEREINIGTE STAHLWERKE AKT.-GES., 67, Breitestrasse, Dusseldorf, and FRANK, R., 2, Eichenstrasse, Hilden, Rhineland, both in Germany. July 5, 1932, No. 19029. Convention date, July 9, 1931. [Class 83 (iii).] A chaser for producing internal screw threads in hollow bodies of double cone shape is of cylindrical form as shown in the Figures with the cutting face x inclined both to the longitudinal axis and to a radius, and has the outline g<1>, h<1> over the apices of the teeth shaped to curves as shown in Fig. 1 so that a projection of these outlines, from the cutting edge onto a horizontal plane, will yield straight lines parallel to the internal faces of the conical work. A geometrical construction is described in the Specification for projecting the curves from the conical shape of the work, the angles A, alpha of the cutting face being known and the threads being at right angles to the axis of the tool. The chaser may be constructed with four cutting edges spaced around its axis and adapted to be used one at a time, and the teeth and flanks on the chaser may be staggered to facilitate the escape of cuttings.
Patent GB-1305439-A (GB)
IPC: H01H43/12
Filed: 1970-04-21
Abstract: 1305439 Cams W E GILSON 21 April 1970 [9 May 1969] 19088/70 Heading F2K [Also in Division H1] A rotary cam drum 12 of a programme controller comprises a plurality of coaxially arranged cam rings 20 each of which has a radially extending flange 20B from which material has been removed to form a recess 22, and an axially extending central boss 20A which serves to space apart the cam surfaces 22, 20B of adjacent cam rings, the cam rings 20 being removably secured together to allow a programme to be altered by replacing a ring or rings by substitutes. As shown, the cam rings have inwardly projecting arms 20C by which they are keyed to a drum 18 rotatably mounted on a shaft 32 which is releasably secured at one end only to a wall 28, release of the shaft and cam drum 12 being effected by unscrewing the shaft 32 by means of handle 56. The cams are retained on the drum between end plates 52, 54, 52 being releasable by bolts 50. The drum 18 carries a gear 48 driven via an idler gear 44 from the output gear of an electric motor. The cam rings 20 may be a friction fit on drum 18 and have angular divisions on the bosses 20A and radial flanges 20B to aid in removing material to form recesses 22. Each cam surface 20B, 22 cooperates with a cam follower actuating a push button switch. In Fig. 5 not shown, each cam ring has internal teeth which mesh with the elongated teeth of a gear shaft on which the rings are suspended, the cam followers bearing on the upper surfaces of the cam rings to retain them in position on the gear shaft. This arrangement ensures that even though the cam surfaces may differ in length somewhat the programme is not impaired.
Patent GB-954422-A (GB)
Title: Master cylinder for hydraulic braking systems
Inventor: DAVIS JOHN WALTER
IPC: B60T11/16
Filed: 1959-06-04
Abstract: 954,422. Hydraulic brakes. GIRLING Ltd. July 25, 1960 [June 4, 1959], No. 19095/59. Heading F2F. In a master cylinder 10 and reservoir 11 assembly for an hydraulic braking system, pressure is applied to liquid in the cylinder 10 by a piston 14, and an actuating rod 22 is coupled to a plunger 18 axially movable relatively to the piston 14, so that when the piston 14 and plunger 18 are fully retracted the pressure space communicates with the reservoir 11 through a passage 12, 16, 17 which is closed by the plunger 18 in its initial forward movement, further movement thereof causing engagement with the pistcn 14 to apply pressure to the liquid in the pressure space. In the embodiment of Fig. 1, the piston bore 16 accommodates the spigot of the plunger 18 and has radial grooves 17 extending outwardly at its forward end; the spigot bears a circlip 31 at its forward end, while a sealing washer 32 is mounted in the plunger 18 at the spigot's rear end. In modifications, the plunger slides within a hollow piston provided with a radial bore for the passage of the liquid.
Patent GB-123702-A (GB)
Title: Improvements in or relating to Attachments for Vice Jaws.
Inventor: DUWELIUS WALTER SCOTT
IPC: B25B1/24
Filed: 1918-11-21
Abstract: 123,702. Duwelius, W. S. Oct. 5, 1918, [Convention date]. Vices.-Relates to pressure-applying devices of the kind described in Specifications 12990/15 and 15632/15, [Class 100 (iii), Type making &c.], and comprising a slotted casing containing a number of members arranged in line and in contact and so shaped that, when moved longitudinally of the casing, some of the members are projected laterally through the slot to grip an object, and consists in adapting such devices for use as vice-jaw attachments by providing the casing with an extension to engage the top of the vice jaw and to which is pivoted a weight to hold the device in place. As shown, the casing 1 containing the gripping members 5 is provided with a curved extension 20 to which is pivoted a weight 22 having a curved lower surface to conform approximately to the shape of the vice jaw. A flange 24 at one end of the extension is adapted to engage the side of the vice jaw to position the casing sideways. The members 5 are of triangular shape and are loosely retained in the casing by lugs 6 on the members and flanges 4 on the casing. The members 5 are arranged between inclined surfaces 10 on a fixed end member 2 and movable members 7, 8, 9, 11 movable longitudinally by a screw 13 to project the members 5 laterally. The faces of the members 5 may be of any suitable shape. and as shown one member has a curved face with vertical serrations for holding a pipe or rod, and the others are provided with flat surfaces having horizontal grooves and serrations for holding a pipe or rod horizontally or for gripping irregular surfaces, and may have indentations to hold the heads of screws.
Patent GB-1411670-A (GB)
Title: Antifogging materials
IPC: C08K5/09
Filed: 1973-04-19
Abstract: 1411670 Antifogging additive PVO INTERNATIONAL Inc 19 April 1973 [24 April 1972] 19169/73 Heading C3P An antifogging composition comprises a C 8-22  aliphatic monocarboxylic acid and either a polyalkoxylated derivative of a partial ester of a C 2-6  polyol and a C 6-22  aliphatic monocarboxylic acid or a compound wherein m, n and z are 0 or 1, # is 1 to 12, R is a C 4  alkylene radical and Q is hydrogen when z is 0 or a C 4 -C 8  alkyl when z is one. The composition is incorporated into vinyl chloride polymers to give films with antifogging properties. In examples polyvinyl chloride or a vinyl chloride/ vinyl acetate copolymer was mixed with di-(2- ethyl hexyl)-adipate, epoxidized soybean oil, calcium and zinc stearate, tris-nonylphenyl phosphite and as anti-fogging compositions a mixture of C 8-18  saturated and unsaturated carboxylic acids or tall oil fatty acid and ethoxylated nonyl phenol or polyethoxylated sorbitan tristearate, polyethylene glycol monostearate or a mixture of ethoxylated mono and diglycerides of stearic, palmitic and myristic acids.
Patent GB-613889-A (GB)
Title: Improved manufacture of optical glass
IPC: C03C3/072
Filed: 1946-06-27
Abstract: 613,889. Optical glass. CORNING GLASS WORKS. June 27,'1946, No. 19279. Convention date, Nov. 9, 1945. Drawings to Specification. [Class 56] A cadmium-free transparent optical glass having a refractive index (nD) of at least 1.64 and a dispersive index (V) greater than 297.5-150 nD contains in percentages by weight BaO 50-70, PbO 5-30, SiO 2  2-25 and B 2 O 3  5-37, the BaO and PbO together being at least 60 and preferably at least 65. The glass should also preferably contain Al 2 O 3  (1-12 per cent) or Zr O 2  (1-7 per cent) or both, and may contain up to 5 per cent total of alkali metal oxides, BeO, CaO, ZnO, As 2 O 3 , Sb 2 O 3'  TiO 2  &c. In particular, examples nD ranges from 1.6492 to 1.7778 and V from 53 to 31. Specification 619,971 is referred to.
Patent GB-152367-A (GB)
Title: Improvements relating to stereoscopic cinematography
IPC: G03B35/00
Filed: 1917-12-31
Abstract: 152,367. Ruffier, L. L. Dec. 31, 1917. Kinematograph apparatus; optical systems.-A stereoscopic kinematograph camera comprises a pair of parallel objectives, a pair of fixed prisms or reflectors, and one or more movable prisms or reflectors by which the images from the two objectives are alternately reflected on to the sensitive film. As shown in Figs. 2 and 3, fixed prisms B1, B2 are arranged behind objectives, and a prism C in a frame 2 which may be rocked on pivot pins 4, in synchronism with the film movement, is provided between them. The frame 2 has a two-ridged cam, and a projection 14 on an axially sliding rod 12 engages between the ridges so as to rock the prism as the rod is moved. The prism C is held in the position shown, or facing the prism B2, by means of a cam 6 engaged by a spring-pressed roller 9 and stops 5 engaging adjustable screws 7. In a modification, Fig. 7, two prisms C1, C2 are provided between the prisms B1, B2, and are moved vertically so as to reflect alternately from the prisms B1, B2. The vertical movement may be effected by a cam 18, through a two-armed lever 20 engaging a push piece 24 at the bottom of a rod 25 attached to a slide 26. In a further modification, Figs. 9 and 10, double-reflecting fixed prisms B1, B2 and a double-reflecting sliding prism C are used. Rays from the prisms B1, B2 are alternately reflected by the prism C along a common path R2. The prism C is moved by a lever 35 pivoted at 36 and operated by a horizontally-sliding frame 34 reciprocated by a, cam on a shaft 33. Specification 3552/11 is referred to.
Patent GB-733532-A (GB)
Title: Improvements in or relating to electrical condensers
IPC: H01G2/24
Filed: 1953-07-13
Abstract: 733,532. Electric condensers. SIEMENS & HALSKE AKT.-GES. July 13, 1953 [July 19, 1952], No. 19308/53. Class 37. A tubular wound condenser with a transparent covering has the code marking printed on the end of the outer electrode so as to be externally visible. The winding comprises an internal electrode 3 (Fig. 1) and an outer electrode 2, separated by layers of dielectric (not shown). The outer electrode 2 projects beyond electrode 3 at each end, the outer end being covered by a coded colour varnish 4 (Fig. 2), and the code marked at the extreme end 5. The outer electrode 2 may be cut from a roll 91 (Fig. 4) previously partly coated as described, and fed under a printing block 16 and guillotine 15. The individual electrodes 2 have a lead wire 6 attached before winding. The electrodes 2 may be metal foil strips, or a layer of metal sprayed onto strips of insulating material. The condenser outer covering may be polystyrol, and may consist of an extension of a dielectric layer, subsequently fused to seal the end.
Patent GB-315832-A (GB)
Title: Improvements in and relating to the production of esters
IPC: C11C3/00
Filed: 1929-06-24
Abstract: 315,832. B÷hme Akt.-Ges., H. T. July 19, 1928, [Convention date]. Emulsions making.-Esters, particularly low carbon number alkyl or aryl esters, of sulphonated fatty or cyclo paraffinic carboxylic acids such as those contained in natural, glyceride or cholestride fats, are produced by first esterifying the carboxylic acid and then treating the product with a sulphonating agent. The final products are stated to include compounds formed by the esterification of the sulpho group and of both the sulpho and carboxyl groups as well as the original esters. The products are employable as emulsifying agents.
Patent GB-1292885-A (GB)
Title: Improvements in or relating to showcases for facing or covering elements
IPC: G02B27/08
Filed: 1970-04-22
Abstract: 1292885 Showcases LE COMPTOIR EUROPEEN 22 April 1970 [24 April 1969] 19406/70 Heading A4T [Also in Division B6] A showcase for elements for facing or covering walls, ceilings or floors is formed as a prism having four walls in the form of mirrors 1-4 with reflecting internal faces and having a crosssection in plan square as shown, which corresponds to the outline of a decorative element to be displayed. The mirrors are bonded on a fabric backing 5, Fig. 3 (not shown), gaps being left between adjacent mirrors so that the showcase can be assembled; the part of the backing (5) behind mirror 3 is extended by a square portion 6, Fig. 2 (not shown) which is folded over to form the base of the showcase, two press-stud elements (7-9, 10-12) holding the assembled showcase in position. When an element is placed face upwards on the bottom of the assembled showcase, an observer  sees in each of the mirrors a pattern composed of a multiplicity of such elements. The showcase may comprise more than four mirrors assembled to form a prism having a plan view in the form of a regular polygon, Fig. 4 (not shown). A special display tile may be used to give an impression of the decorative appearance resulting from the arrangement of squares differing in type or colour in a check pattern, Figs. 5, 6 (not shown). Alternatively, the showcase may consist of a pre-assembled box having an insertion slot in its base, and a window may be provided in one of the prism surfaces to provide a view of the opposed reflecting surface(s).
Patent GB-760857-A (GB)
Title: Machine tool having fluid pressure operated clutches
IPC: B23Q5/14
Filed: 1954-07-02
Abstract: 760,857. Lathe details. WARNER & SWASEY CO. July 2, 1954 [Dec. 17, 1953], No. 19421/54. Class 83 (3). [Also in Group XXIV] A machine-tool has a transmission comprising a driveshaft 32, Fig. 2, a driven-shaft 77, constantly-meshed gears 34, 36, 57, 58, 74...76, 78, 79 between the shafts, fluid-operated clutches C<SP>1</SP> ... C<SP>5</SP> for selectively coupling gears 34, 36, 58, 76, 79 to provide different speed-ratios between the shafts, a source of fluid under pressure, a number of twoposition valves VA ... VD, Fig. 9, for controlling the clutches, valves VA, VB, VC being solenoid - actuated and valve VD fluid-actuated under the control of the other valves, and switch-means for selectively energizing the solenoids. The clutches are each spring-urged to the inoperative position and moved to operative position by fluid acting on a piston 64, 43, 42, 84, 88, respectively. Gears 34, 36 are rotatable on, and gear 57 is fixed to, shaft 32; gears 74, 75, 78 are fixed to, and gear 58 is rotatable on, a countershaft 60; and gears 76, 79 are rotatable on shaft 77. Shaft 77 drives a lathe-spindle 24 either through gears 110, 112-114 or through gears 111, 112, 115, the gears 112, 113 being slidable on shaft 116 by a yoke engaging a collar 117. Outlet 204 of valve VD leads to piston 64 via port 72 in stationary coupling 73 and bores 68, 67 in shaft 60. Outlet 199 of valve VC leads to piston 43 via port 49 in stationary coupling 47 and bores 47a, 56 in shaft 32, and outlet 193 of valve VD leads to piston 42 via port 48 in coupling 47, a tube 53 supported in bore 47a and bore 55. Outlets 183, 181 of valve VB lead to pistons 84, 88, respectively, via ports 92, 93 in stationary coupling 96, the interior and exterior of tube 100 supported in bore 103 in shaft 77, and bores 104 ... 106, 107 ... 109 respectively. The transmission provides six speeds for shaft 77 as shown in the table of Fig. 10, operation of the valves and clutches being indicated by X and non- operation by O and D, respectively. When all solenoids are de-energized, valve VD is operated by fluid from pump 165 via conduits 166, 169, valve VA, conduit 173, valve VC, and conduit 177, thus actuating clutch C<SP>5</SP> via conduit 179 and valve VB, fluid being admitted to clutch C<SP>4</SP> via conduits 166, 167 and valve VB. With both clutches C<SP>4</SP>, C<SP>5</SP> operated, shaft 77 is braked, but the pressure of the fluid is reduced below that used for speed selection, by opening pump-relief valve 152 to by-pass fluid from pump-outlet 159 to the reservoir line 160. This is done by applying fluid from conduit 179 to piston 157, acting via pin 156 on valve 152. The valves VA ... VD are contained in a common housing 119 mounted by a plate 120, containing the valve interconnecting- conduits and ports, on a bracket 91 attached to the machine housing. Specification 653,706 is referred to.
Patent GB-652069-A (GB)
Title: Process for the polymerization of vinyl derivatives
IPC: C08F4/06
Filed: 1948-07-20
Abstract: Polymers and copolymers of one or more vinyl compounds are made by polymerizing in alkaline aqueous medium in the presence of a polymerization catalyst, e.g. potassium persulphate, and an accelerator consisting of finely-divided metallic lead or of a water-insoluble lead salt of an organic acid, e.g. lead stearate. Specified vinyl compounds are vinyl chloride, vinyl acetate and methyl acrylate.  The medium may contain alkali metal hydroxides, e.g. caustic potash, and soaps, e.g. potassium stearate.  The intrinsic viscosity of the polymers in cyclohexanone is higher than 1,2.
Patent GB-260358-A (GB)
Title: Improvements in or relating to steam boilers or the like
IPC: F22B17/10
Filed: 1925-07-31
Abstract: 260,358. Ellis, G. B., (Murray, T. E.). July 31,1925. Cooling.-A boiler furnace has one or more walls of straight unbent water-tubes exposed on one side only to the heating gases, the opposite ends of the tubes being connected to horizontal headers communicating with a steam drum. The side walls of a combustion chamber 4 consist of vertical tubes 9, preferably having overlapping fins, and connected to top and bottom headers 11, 12. The circulating system for each wall is complete in itself, both being independent of that of the boiler. A separate steam drum may be provided for the water wall systems. Specification 225,810 is referred to.
Patent GB-1255904-A (GB)
Title: Urethane foams containing halogen containing polymers and methods for preparing the same using certain catalysts
IPC: C08G18/00
Filed: 1970-04-23
Abstract: 1,255,904. Polyurethane foams. GENERAL TIRE & RUBBER CO. 23 April, 1970 [24 April, 1969], No. 19528/70. Headings C3C and C3R. Flexible polyurethane foams are prepared by reacting (A) a polyether or polyester polyol having 2 to 4 hydroxyl groups and a M.W. of 1000 to 10,000 (B) a polyisocyanate and (C) water as blowing agent in the presence of (D) a surfactant, by a one-shot or prepolymer process such that the NCO/OH group ratio is 0.70 : 1 to 1.35 : 1 and incorporating in the reaction mixture (I) 2 to 100 p.b.w. per 100 p.b.w. of the polyol of a finely divided halogen containing polymer having an intrinsic viscosity of 0.5 to 2.5, and (II) 0.05 to 3.2 p.b.w. per 100 p.b.w. of the polyol of a catalyst of the formula wherein X is an alkyl or alkenyl radical having 1 to 18 carbon atoms, an alkyl substituted or unsubstituted cycloaliphatic radical or an alkyl radical substituted with a cycloaliphatic group, said radicals having a ring of 4 to 8 carbon atoms and up to a total of 16 carbon-atoms or an alkyl substituted or unsubstituted' aromatic radical or aryl substituted alkyl. radical, said radicals containing 1 benzene ring and 6 to 16 carbon atoms, Y is an. alkyl substituted or unsubstituted cycloaliphatic hydrocarbon radical or an alkyl radical substituted with a cycloaliphatic group, said radicals having a. ring of 4. to 8 carbon atoms and up to a total of 16 carbon atoms. or an alkyl. substituted or unsubstituted aromatic radical or aryl substituted alkyl radical, said radicals containing one benzene ring and 6 to 16 carbon atoms, and R is hydrogen or an alkyl radical of 1 to 4 carbon atoms, the maximum number of alkyl radicals being 4. The reaction mixture may contain also a metal containing catalyst and/or a fluorocarbon blowing agent. Preferred resins (I) are polyvinyl chloride, a copolymer of a major amount of vinyl chloride and a minor amount of vinyl acetate; which copolymer may be partially hydrolysed and chlorinated polyethylene. Numerous catalysts (II) are listed those exemplified being N-methyldicyclohexyl amine; 1 - (2 - ethyl - 1 - hexenyl) piperidine, tricyclohexylamine, N-methyl diphenyl amine, N,N-dibenzyl aniline, triphenylamine and N- cyclohexyl piperidine. The polyols, polyisocyanates, surfactants, metal-containing catalysts and fluorcarbon blowing agents are those conventionally, used in the art.
Patent GB-1024894-A (GB)
Title: Improvements in aircraft jet-propulsion power-plants
Inventor: WOTTON JOHN
IPC: B64D27/20
Filed: 1963-05-16
Abstract: 1,024,894. Aircraft power plant. VICKERSARMSTBONG (AIRCRAFT) Ltd. May 7, 1964 [May 16, 1963], No. 19545/63. Heading B7G. An aircraft jet-propulsion engine installation comprises a central engine 12 (Fig. 2, not shown), buried in the tail end of the fuselage and two outboard engines 13, 14 respectively mounted in nacelles or pods attached to the opposite sides of the fuselage 10 laterally of said central engine, each of said engines being a by-pass gas turbine unit having at its after end a supplementary turbo fan unit 127, 137, 147 respectively and an annular cowl 125, 135, 145 surrounding the respective turbo-fan unit and arranged to receive boundary layer air from surfaces lying ahead thereof, the rotor of each turbo-fan unit being furnished with fan-blades which extend into, and or rotating, sweep the interior of its respective cowl to ingest said boundary layer air therein. The fairing for the central turbo-fan 127 may have an additional air entry duct and the outboard engines may have thrust reversing units 134, 144. The jet nozzles 123, 133, 143 may have elliptical profiles and transverse extensible rods, whereby the profiles may be altered in shape. Reference has been directed by the Comptroller to Specification 974,384.
Patent GB-295375-A (GB)
IPC: A61H23/04
Filed: 1928-07-06
Abstract: 295,375. Grosse, C., and Schuhan, A. Aug. 12, 1927, [Convention date]. Massage and vibratory treatment. - A water operated vibratory massage apparatus has a vibratory diaphragm 16 which is acted on by the inflow of water from a pipe 3 and automatically opens and closes the water outlet 2, while the water inlet g, which is adjustable by a valve 5, is always open. In a modification the diaphragm is flat and a raised rim is formed on the outlet. The diaphragm may have a boss, with or without a suction cap or a hole for the stem of a bell-shaped member for carrying out local massage.
Patent GB-596720-A (GB)
Title: Improvements in and relating to concrete pipe junctions
IPC: F16L41/08
Filed: 1945-07-31
Abstract: 596,720. Joints for concrete pipes. FOLEY, H. E., and HUME PIPE CO. (AUSTRALIA), Ltd. July 31, 1945, No. 19719. [Class 99 (i)] A branch joint for concrete pipes is made by forming an aperture in the wall of the main pipe 6, the aperture having an inner portion 9 of diameter equal to the internal diameter of the junction piece 7 and a stepped shoulder 13, the surface of which is not plane but concentric with the main pipe, and then inserting the junction piece, the inner end of which is complementarily curved, into the cavity 11 formed above the shoulder, the cavity being large enough to provide an annular space around the junction piece into which jointing material 12 is introduced.
Patent GB-951336-A (GB)
Title: A hopper for loose material and a vibratory discharging aid
IPC: B65D88/66
Filed: 1961-06-01
Abstract: 951,336. Vibrating hoppers for viscous material. C. SCHENCK MASCHINENFABRIK G.m.b.H. June 1, 1961 [July 8, 1960], No. 19833/61. Heading B8S. A hopper intended for discharging viscous materials is provided with agitators at different levels. Thus, hopper 1 is provided with stationary parts 6, 4 secured together at 4a; with part 5 connected elastically at 7, 8 to parts 4, 6; and with separately mounted parts 3, 2. Thus parts 5, 3 and 2 are effectively insulated from the stationary part of the hopper and are vibrated by vibrators 11, 10 and 9, respectively.