baber/WOPTO huggingface dataset:
Patent GB-748533-A (GB)
Title: Process for atomizing coating compositions
IPC: D06B1/02
Filed: 1954-02-10
Abstract: 748,533. Spray-producers. BEDE, J. A. Feb. 10, 1954 [Feb. 16, 1953], No. 3959/54. Addition to 689,620. Class 69 (3). In a method of spraying a paint containing a solvent, in which the paint is heated to a temperature of at least 135‹ F. whilst being maintained at a pressure sufficient to prevent boiling off of its solvent, and subsequently projecting the heated point at a pressure of at least 100 lb/sq. inch through an outlet orifice so that a part of the solvent is transformed to its gaseous state, the paint is such that its viscosity is substantially reduced by the heating, and the boiling point of not less than 50 per cent by weight of its solvent is at least 135‹ F. at atmospheric pressure. No atomizing gas other than that released from the paint itself is thereby utilized. In Fig. 1 a pump 3 draws paint from a tank 1 and passes it through a heat exchanger 4 to a gun 6, and excess paint is returned via a conduit 7 and a pressure release valve 8. The gun includes an axial valve stem which is urged forwardly by a spring 15 to close the gun outlet and is retracted by a trigger 17. The paint in the heat-exchanger may be maintained under the full pressure at which it is ultimately delivered from the gun, or under only a sufficient pressure, i.e. about 30 lb/sq. inch to prevent boil off of the solvent during heating. Specification 689,601, [Group XI], is referred to.
Patent GB-896269-A (GB)
Title: Improvements in or relating to deuterium concentration processes
Inventor: KENYON ALBERT RAYMOND
IPC: C01B4/00
Filed: 1960-02-04
Abstract: D2 is concentrated by contacting gaseous H2 with a liquid mixture of NH3 and a primary or secondary aliphatic amine, or a fully hydrogenated cyclic secondary amine, containing an ionic catalyst, e.g. potassamide, for the H2 isotope exchange reaction between liquid NH3 and gaseous hydrogen. The aliphatic amine may be methyl-, dimethyl- or diethyl-amine and the cyclic amine may be pyrrolidine or piperidine or homologues thereof, e.g. 2-methyl-pyrrolidine.  In an example, dimethylamine was added to a mixture of liquid NH3 and potassamide, and H2 gas was bubbled, using a sintered glass disc, once through the mixture at -46 DEG C. in a vertical column which was externally cooled.  The above process may be applied to a dual-temperature exchange system, in which a stream of liquid NH3 is passed successively through contacting apparatus at two different temperatures countercurrently to a stream of gaseous H2, both NH3 and H2 being recirculated.
Patent GB-623825-A (GB)
Title: Wheel dressing device for a centreless grinding machine
IPC: B24B53/06
Filed: 1947-02-14
Abstract: 623,825. Centreless-grinding. AKTIEBOLAGET M. HOLMQUIST. Feb. 14, 1947, No. 4277. Convention date, Feb. 8, 1946. [Class 60] A slide carrying a dressing diamond in a centreless-grinding machine is adjustably arranged at an angle to the axis of an inclined control wheel 2, and the diamond 13 can be set at such a distance from the centre of its holder that the generation of the working surface of the wheel will be given a curved shape ensuring almost complete line contact with the work. The wheel 2 is rotatably journalled in a part 4 pivotally mounted on a slide 16 so that its inclination with respect to the grinding wheel 15 may be adjusted by a fine-pitch screw 6. The diamond is held eccentrically in its holder which may be rotated in its mounting and vertically adjusted by a fine-pitch screw 14. The mounting is supported on the slide which is longitudinally displaceable along the part 4 by a handwheel 8 and rotatable about its vertical axis 9 by a fine-pitch screw 10. This latter adjustment enables the direction of traverse of the slide to be inclined to the axis of the wheel so that the dressing operation produces an hyperboloid. The diameter of the workpiece governs the height at which it is set with respect to the grinding and control wheels, the distance of the diamond from a line passing through the centre of its holder and parallel to the direction of traverse of the slide, the inclination of the control wheel, and the inclination of the slide to the axis of the latter. These settings are obtained from a table, and a gauge corresponding to the workpiece is used for setting up.
Patent GB-1203782-A (GB)
Title: Method of heating a body to, and maintaining the body at or in the region of, an elevated temperature
Inventor: GAWLICK HEINZ
IPC: F24V30/00
Filed: 1969-01-24
Abstract: 1,203,782. Heating devices utilizing exothermic chemical reactions. DYNAMIT NOBEL A.G. 24 Jan., 1969 [25 Jan., 1968], No. 4278/69. Heading F4X. [Also in Division C7] A body 1 (unspecified but which may be solid, liquid or gaseous or a combination thereof) is heated rapidly by the burning of a first pyrotechnic composition to a desired temperature which is maintained for a predetermined time by a heat sink in thermally conductive communication with the body via said pyrotechnic composition or melt thereof, said heat sink comprising a metal or metal alloy which is melted by the firing of a second pyrotechnic composition burning more slowly than the first. Known pyrotechnic compositions are utilized several examples being given as well as numerous examples of a suitable metal or alloy to act as the heat sink, and preferred temperatures and duration of heating of the body. As shown the body 1 has a compartment 8 to receive an object to be heated. The body is heated initially by a composition fired in the annular space 2 surrounding the body. A wall 3 separates the space 2 from another annular space 4 in which the second pyrotechnic composition is burned. The wall 3 is sheathed on one or both sides by the metal or alloy 5 constituting the heat sink. The device may be used to heat a battery to bring it to its operative state.
Patent GB-663391-A (GB)
Title: Improvements in or relating to surface superfinishing
IPC: B24B5/18
Filed: 1949-02-16
Abstract: 663,391. Grinding and polishing. FRANCAIS, ETAT. Feb. 16, 1949 [Feb. 17, 1948], No. 4307/49. Class 60 The external or internal surface of a rotating work piece 2, Fig. 1, is finished by a cylindrical tool 1 driven by frictional engagement with the surface to be finished, the tool and the work piece having relative axial movement. The preferred construction employs two tools 1 freely journalled in a strap 4 which is pivotally connected with a rod 6. Fig. 3 shows an arrangement for treating external and internal surfaces simultaneously by means of an abrasive block 12 and a roller 13 which is preferably supported at both ends. The work piece 9 is mounted on driven rollers 7, 8. Fig. 5 shows an internal surface being finished by rollers 13 rotatably supported by spring-loaded levers 14. Conical bores may be treated with tapered tools mounted with their axes inclined to those of the supporting rollers for the work piece.
Patent GB-1107733-A (GB)
Title: Iodo-substituted benzoic acid lactones which exhibit estrogenic activity
IPC: A23K1/16
Filed: 1966-02-01
Abstract: Novel compounds of the formula <FORM:1107733/C2/1> wherein A is the radical -CH2-CH2- or -CH=CH-, X is iodine, Y is H or iodine, and R is H, alkyl, aryl, bromo-aryl, carboxylic acyl or aralkyl, the R groups being the same or different, may be prepared from the compound <FORM:1107733/C2/2> by iodination, e.g. with KI solution, with optional steps of reducing the olefinic bond, and/or etherifying or acylating the OH groups.  Therapeutic compositions having estrogenic and growth-promoting activity comprise a compound of the first formula given above, together with a suitable diluent, and may take the form of a feed, or an injection suspension, e.g. in peanut oil. Reference has been directed by the Comptroller to Specification 951,349.
Patent GB-589099-A (GB)
Title: Improvements in or relating to power plants
IPC: F02K3/062
Filed: 1945-02-20
Abstract: 589,099. Shaft couplings. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Feb. 20, 1945, No. 4321. Convention date, Feb. 24, 1944. [Class 80 (ii)] [Also in Groups XXVI and XXXIII] A gas turbine plant for propelling aircraft comprises in one axial line, an axial flow compressor, an annular combustion chamber 29 and a turbine with three oppositely-rotating rotors 23, 24, 25. The turbine rotors 23, 24 have a relatively low speed, e.g., 1,800 r.p.m., and drive oppositelyrotating ducted airscrews 47, 53. The rotor 25 has a high speed, e.g., 13,000 r.p.m., and drives the axial flow air compressor which is on the front end of the shaft 39. The hub ring 46 of the airscrew 47 is supported and driven solely by means of a large number of axially disposed flexible strips 44, see Fig. 5, which are secured at their down-stream ends to the shrouding 43 of the first blade ring 23a of the rotor 23. The airscrew 53 is similarly supported and driven by strips 50 secured to the second blade ring 24b of the rotor 24.
Patent GB-853819-A (GB)
Title: Starters for internal combustion engines
Inventor: DANILEWICZ LUDOMIR
IPC: F02N5/02
Filed: 1958-02-11
Abstract: 853,819. Engine turning gear. AIRCRAFT STEEL STRUCTURES Ltd. April 29, 1959 [Feb. 11, 1958], No. 4461/58. Drawings to Specification. Class 7(5). The invention relates to starters for internalcombustion engines of the kind comprising a starter pinion carried by an output shaft with an interposed helical thread mechanism for moving the pinion between an engine-engaging and a disengaged (hereinafter termed retracted) position. The invention consists in a starter of the kind referred to in which the helical thread mechanism comprises a routte start helical groove cut in the output shaft engaged by balls housed in radial holes through a sleeve attached to the starter pinion. The starter described is similar to that described in Specification 853,818 referred to. While the invention has been particularly described with reference to spring starters it will be understood that it is also applicable to inertia or electric starters. Specification 853,817 also is referred to.
Patent GB-676610-A (GB)
Title: Improvements in window sashes
IPC: E06B3/08
Filed: 1951-02-23
Abstract: 676,610. Windows. PERSSON, E. S. Feb. 23, 1951, No. 4467/51. Class 20(iii). To provide space for mounting venetian blinds &c. on a movable window sash, one member, e.g. the top member 5, of a sash 2 is made of metal, the other members 6 being made of wood, said space being provided on the inside of a pane 4 which is retained between flanges 7 on the member 5. A double sash, Figs. 5, 6, comprises a metallic outer sash 9 which is hinged at 17 to an inner sash 12 having a metallic top member 11 and wooden side and bottom members, both sashes being carried by horizontal pivotal mountings between the wooden members 12 of the inner sash and a frame member. Packing 18 is provided between the upper metallic members of the two sashes.
Patent GB-1380392-A (GB)
Title: Portable electric hacksaw
IPC: B23D49/04
Filed: 1971-02-12
Abstract: 1380392 Reciprocating saws J HOWELL 8 Feb 1972 [12 Feb 1971] 4545/71 Heading B5L In an electrically driven hacksaw the pressure exerted on the workpiece by the blade 27, Fig. 1, is adjustable by means of a resiliently supported ball member 13, Fig. 3. The hacksaw comprises a saw frame 2 slidably mounted on a runner bar 3 which is pivoted at one end 4 to the chassis 1 of the saw. A cam slot 5 in the frame 2 extends obliquely to the axis of the bar 3 and is co-operable with a cam follower rotatable at the end of a crank arm so that rotation of the crank arm produces reciprocating sliding movement of the saw frame on the bar 3 and oscillating movement of the bar with its supported saw frame. The saw frame is urged in a cutting direction during its movement towards the pivot 4 and away from cutting contact during its return stroke on the runner bar. The ball member 13 is resiliently urged to exert a pivoting force on the bar 3 adjacent the pivot 4 and is adjustable to different positions to produce different pivoting forces on the bar. As described the ball member is engaged with one of a number of notches 26 in a plate on the bar 3 and is adjusted by a handle 18 pivoted at 17 and carrying a tube 16, Fig. 3, in which a spring 15 and the member 13 are supported. A pair of fibre blocks carried at the ends of a leaf spring mounted in the saw frame exert frictional forces on the runner bar and these forces can be adjusted by a screw 21. The saw also includes a vice 22, and a guide 11 for the end of the runner bar 3. A cut-out switch 28 operated by the frame 2 is arranged to stop the saw drive when the saw cut is completed.
Patent GB-898064-A (GB)
Title: Monitoring the color of a fluid bath
IPC: G01J3/46
Filed: 1959-02-10
Abstract: 898,064. Colorimeters. PROCTOR & SCHWARTZ Inc. Feb. 10, 1959 [Feb. 13, 1958], No. 4575/59. Addition to 819,484. Class 97(1). The method of monitoring the colour of a fluid bath as described and claimed in the parent Specification is improved by adding colour constituents to the bath in order to restore the colour thereof to that of the standard, when there is any deviation. Means are provided which upon detection of a colour deviation open the appropriate selection of valves that are provided for adding from individual tanks fluid of the proper constituent colours to the bath, to correct the deviation, the fluids being fed via a manifold into a mixing tank. As shown in Fig. 1, a continuous sample is piped from a mixing chamber 3 into a cell 7 and the colour of the sample is continuously compared with that of a standard by the method and apparatus described in the parent Specification. Any deviation from the colour of the standard results in an error signal which actuates an appropriate solenoid operated valve 2a, 2b or 2c in the pipeline from a tank containing colour constituent to the mixing chamber 3. The method and apparatus of the parent Specification are also modified in that the colour standard comprises oppositely disposed optical wedges mounted in a frame 63 attached to a bracket 64 slidable on guides 65, Fig. 2. This frame is spring urged upwardly at 67 and is pulled downwardly by a crank mechanism 74, 75, 77 controlled by a solenoid 72. For use with the desired colours there are provided three stops 82, 83 and 84 the positions of which are adjustable vertically by screws such as 89, a scale being provided on the part 95 by which the vertical positions of these stops can be read off. Each stop is in the form of a plunger which moves into the path of a shoulder 85 on the frame carrier 64 when a solenoid for controlling the plunger is de-energized in sequence and at the same time as the solenoid 72 is energized. This may be effected as shown in Fig. 7 where a cam disc 110 is rotated in synchronism with the colour filter wheel 111 described in the parent Specification and actuates the solenoids 113, 114 and 115 in sequence so as properly to position the light attenuating element for each of the colours carried by the filter wheel 111.
Patent GB-1076423-A (GB)
Title: Improvements in machines for sorting and grading ores, minerals and analogous materials
IPC: B07B7/083
Filed: 1964-02-03
Abstract: 1,076,423. Classifying solids. C. STOCKTON. Jan. 18, 1965 [Feb. 3, 1964], No. 4579/64. Heading B2H. A machine for classifying materials into fractions of different sizes and/or weights comprises a rotatable throwing table 13 located at the centre of and surrounded by concentric catchment compartments 23-29 of successively smaller diameters and a hopper 19 for feeding the material to be classified on to the central zone of the table. The table 13 is mounted on a platform 8 vertically adjustably supported with respect to the hopper 19 on a fixed platform 4 by means hydraulic rams 6, 7. The shaft 12 of the table is driven through a variable speed gear box 10 by means of an electric motor 9. The table 13 includes a circular plate 15 detachably secured to its conical base portion 14 and formed with an upwardly projecting boss 16, Fig. 4 (not shown), and with radial vanes 17 having outwardly sloping upper edges to which is fixed an annular cover 18. The hopper 19, which may be vertically adjustable, is supported by the machine frame so that its discharge throat 20 enters the annular clearance between the root of the boss and the inner ends of the vanes. An anti-wear shroud 21 is secured within the throat 20 to enclose the boss 16 and provide an annular discharge channel 22. In a modification, the vanes 17a Fig. 5 (not shown) have a uniform depth and/or the boss 16 is replaced by a domed head 16a on the upper end of the shaft 12 and the hopper has an annular converging channel 22a for material to flow radially outwards. Each of the catchment compartments increases in depth from a minimum at each of two diametrically opposed regions to a maximum at each of two other diametrically opposed regions which are spaced from the first regions by 90‹. A discharge opening 32, Fig. 2 (not shown) is formed in the floor of each compartment at the two deepest zones thereof and may be provided with a gate or shutter to be closed or opened at will. In operation the material to be classified is fed on to the plate 15 of the table 13, passes under the action of centrifugal force, between the vanes 17 and is thrown clear of the table. The larger and heavier fractions are thrown against the wall 30 of the outermost compartment 23 and fall into and accumulate in that compartment and successively larger and lighter particles accummulate in the successive inner compartments with the smallest and lightest particles accumulating in the innermost compartment 29.
Patent GB-795956-A (GB)
Title: Improvements in or relating to domestic heating and cooking appliances
IPC: F24B1/19
Filed: 1955-02-16
Abstract: 795,956. Air supply. GILCHRIST, J. Feb 16, 1956 [Feb. 16, 1955], No. 4640/55. Class 126. Air is supplied to a solid fuel fire from a chamber detachably fitted to the fire front and communicating with the interior of the ashpit and with a duct beneath the hearth supplying primary air to the fire. Air is fed to a chamber 7 fitted to the front of a fireplace from a duct 2 below the hearth. A branch 4 leads from the duct 2 to a space communicating with the outside atmosphere, and an ashpan 5 is placed in the lower part of the duct 2. The chamber is formed by an ashpit cover 1, and communicates with the ashpit through, at least one hole in the rear wall of the ashpit cover. A damper 9 operated by; cam and follower arrangement 13, 14 controls the air inlet aperture 10. In a modification, Fig. 3, not shown, the air inlet to the chamber is controlled by a damper arranged to turn about a horizontal axis.
Patent GB-1148704-A (GB)
Title: N-acyloxazolidines
IPC: A61L9/01
Filed: 1968-01-30
Abstract: 1,148,704. Preparation of N-acyloxazolidines. DYNAMIT NOBEL A.G. 30 Jan., 1968 [4 Feb., 1967], No. 4815/68. Heading C2C. Novel compounds of the general formula where R 2  is a carboxylic acyl group are prepared by condensing an N-(2-hydroxyethyl)-amide of an aliphatic or cycloaliphatic mono- or dicarboxylic acid which may be prepared by reacting the acid or lower (C 1-8 ) alkyl ester with monoethanolamine, with formaldehyde. The reaction may be carried out in the presence of an acid catalyst or a titanate at temperatures of 100-150‹ C. or in a solvent which does not react with the aldehyde. These novel compounds may be used as bactericides, fungicides, antistatics, textile auxiliaries and lubricants for plastics.
Patent GB-731670-A (GB)
Title: Improvements in or relating to an electric control arrangement for regulating an electric alternator
IPC: H02P9/32
Filed: 1952-02-25
Abstract: 731,670. Automatic voltage control systems. ELECTRO METHODS, Ltd., and BARACZ, A. J. Feb. 4, 1953 [Feb. 25, 1952], No. 4844/52. Class 38 (4). In an automatic voltage control system for an alternator in which the field is excited by the rectified output of an auxiliary, high-frequency alternator, the input to the rectifier is regulated by a saturable reactor controlled in accordance with the output of the main alternator. The excitation of the main alternator 11 is derived from a 400 c.p.s. alternator 1 via rectifier 6 controlled by a saturable reactor 3. The reactor has a bias winding 16 energized via rectifier 14 and constant voltage network 17 from the alternator 1; a current compounding control winding 20 energized by a current transformer 24 and rectifier 22 in accordance with the output of the main alternator; and a voltage control winding 26 energized via a magnetic amplifier 28 in accordance with the output of a voltagesensitive bridge 27 energized via rectifier 31 from a positive phase sequence network 29. The bridge 27 has non-linear resistors in two of its arms and is arranged to be balanced when the voltage of alternator 11 is at the required value. To eliminate hunting, a signal proportional to the rate of change of alternator field voltage is applied by resistance-condenser network 19 to the magnetic amplifier 28.
Patent GB-1524734-A (GB)
Title: Panels
IPC: B05C9/04
Filed: 1976-02-07
Abstract: 1524734 Coating panels all-round with thermoplastics J LAWRENCE T W AYRE and S RICHARDSON [trading as PRE-SEAL ROOFING CO] 7 Feb 1977 [7 Feb 1976] 04855/76 Headings B2E and B2L [Also in Division B5] A stress bearing building panel comprises a stress-bearing panel with an impervious thermoplastic material completely coating both faces and all the edges; typically it is capable of being walked on, is made of plywood or particle board, and the moisture-impervious thermoplastic material is bitumen; the panel may be 8' x 4'. It may have a layer of roofing felt bonded to one face thereof. Panels 11 are driven by nip rolls 15 to be coated by hot bitumen from hopper 19 and also by bitumen applied from tank 23 by roller 24; this co-acts with roller 21 to spread bitumen on the faces of the panel so as to overflow the edges; the "sides" of the panel are coated by the effect of doctor blades downstream of the rollers; the "ends" are coated by momentarily reversing drive rolls 15 to create a gap between adjacent panels, into which gap bitumen flows. A felt 27 may be immersed in bitumen 28 and fed as shown to be laminated to a panel by roller 21.
Patent GB-448725-A (GB)
Title: Improvements in and relating to electric bells
IPC: G10K1/26
Filed: 1935-02-15
Abstract: 448,725. Electric bells. WARD & GOLDSTONE, Ltd., and GOLDSTONE, S., 107, Frederick Road, Pendleton, Salford. Feb. 15, 1935, No. 4868. [Class 13] In an electric bell having a moulded housing or casing 4 of insulating material fixed to a backing plate, an arm 7, attached to a terminal 5, is formed with a bent-up portion 8 adapted to engage a spring contact 9 attached to the armature 10, and the adjustment of the contacts is effected by movement of a tongue 11 formed on the arm 7 and projecting towards the front of the bell and movable in a slot in the casing 4. The arm 7 is retained in its adjusted position by a screw 13 which passes through a slot 12 in the member 7 and engages a small nut. The arm 7 may be provided with a thickened portion having a screw-threaded hole or the strip may carry a projection through which a screw passes, a small nut being provided on the front. The adjustable part near the contacts may be carried on a stiff but flexible wire attached to one of the terminals 5, 6.