baber/WOPTO huggingface dataset:
Patent GB-433807-A (GB)
Title: An improved method of and means for regulating temperature of steam delivered by a steam superheating installation
IPC: F22G5/16
Filed: 1934-04-19
Abstract: 433,807. Steam superheaters. SUPERHEATER CO., Ltd., and WOOD, J. E., Bush House, Aldwych, London. April 19, 1934, Nos. 11866 and 35460. [Class 123 (iii)] A desuperheater 1 is so disposed in relation to the water level in the boiler drum 3 to which it is connected by a pipe 2 that the water in the desuperheater is constantly subjected to boiler pressure tending to feed it into the desuperheater against the pressure of steam from a convection type superheater, varying with the boiler load, acting on the water surface so that the water level in the desuperheater and the consequent desuperheating effect varies with alterations in the pressure drop in the superheater, the final steam temperature thus remaining constant irrespective of load variations. In the form shown a primary superheater 6 is connected to the top of the desuperheater, and the desuperheated steam with steam generated in the desuperheater passes to a secondary superheater 10. A choke or valve 11 in pipe 2 obviates the necessity for an inconveniently high desuperheater, its value being determined according to the characteristics of the particular boiler. In a modification compensation is effected for the influence of ash on the superheater elements or boiler tubes or of other factors. One such arrangement provides a bifurcated steam passage to the desuperheater one leg constituting a fixed and the other having a variable resistance manually or thermostatically controlled so as to superimpose an additional effect on the desuperheater water level, or a valved pipe may byepass the superheater. A branch pipe from the boiler feed line may supply the desuperheater and a choke in this pipe is supplemented by a choke in the pipe length between the branch and the boiler to compensate for superheat variations accompanying changes in rate of water feeding. The desuperheater may be byepassed by a valved pipe under manual or thermostatic control or both. Another modification provides means for avoiding a stagnant body of water in the desuperheater and comprises a number of pipes communicating with the desuperheater at various heights and drawing water therefrom by the action of a Venturi tube in the feed pipe between the desuperheater supply pipe and the boiler.
Patent GB-513857-A (GB)
Title: Improved step ladder
IPC: E06C1/38
Filed: 1938-04-21
Abstract: 513,857. Step ladders. SCOTT, D., and SCOTT, A. April 21, 1938, No. 11916. [Class 20 (ii)] A step ladder in which each side member comprises two rails has these rails grooved on their inner faces at D to receive panels E, the ends of which engage slots F, G, cut in the ends of adjacent steps, and which serve as distance pieces between the steps.
Patent GB-1491603-A (GB)
Title: Liquid detergent compositions
IPC: C11D1/83
Filed: 1975-03-21
Abstract: 1491603 Liquid detergent compositions PROCTER & GAMBLE CO 21 March 1975 [21 March 1974] 11922/75 Heading C5D Builder-free, liquid, detergent compositions comprise (A) from 20% to 50% by weight of a nonionic surfactant produced by the condensation of from 2 to 15 moles of ethylene oxide with one mole of a saturated primary aliphatic alcohol having a straight or branched chain of 8 to 12 carbon atoms having an H.L.B. of 8 to 17 and a critical micelle concentration of between 0À006 and 0À1 weight per cent at 25‹ C.; (B) an anionic surfactant in the form of an alkanolamine salt, the weight ratio of (A) to (B) being 1À8 : 1 to 8À0 : 1 based on the free acid form of the anionic; and (C) at least 1% by weight of free alkanolamine. The anionic surfactant (B) may be an alkyl benzene sulphonate, an alkyl sulphate, an α-sulphonated fatty acid, or an α-olefine sulphonate. The compositions may contain, as solvent, water or a C 1 -C 5  alkanol and also potassium chloride, citric acid and as suds suppressor, oleic acid. The compositions are suitable for cool water fabric laundering.
Patent GB-182604-A (GB)
Title: Improvements in rims or felloes for cycles, motor cycles and similar vehicles
IPC: B60B21/06
Filed: 1921-04-26
Abstract: 182,604. BilbÚ, H. S. April 26, 1921. Rims.-A wheel rim is formed of rolled or pressed &c. metal with a thickened central part a<5>, where the spokes are affixed, of laminated form, and flat parallel sides a<1>, the overall width of the rim being such that brakes having a calliper action may be readily removed. Figs. 2 and 7 show a rim suitable for wired-on or straight-sides tyres; Fig. 14 shows a typical rim for use with beaded-edge tyres; and Fig. 21 a form of rim arranged for single-tube tyres.
Patent GB-834743-A (GB)
Title: Improvements in or relating to ammunition for toy guns
IPC: F42B8/02
Filed: 1958-04-15
Abstract: 834,743. Ammunition cartridges. DIE CASTING MACHINE TOOLS Ltd., and MILLS, A. R. June 27, 1958 [April 15, 1958], No. 11976/58. Class 9(1) Ammunition for toy guns comprises a cartridge case, e.g. of brass, with a cylindrical body 10 and a flat base 11 and a bullet 14 provided with three ribs 16 on the part 15 within the case. On firing a percussion cap 13 placed in the base, the gases escape through openings 12 in the base and also pass between the ribs 16 to escape through an annular channel 18 between the case and a circumferential rib 17 on the bullet. The bullet is hollow and preferably made by die casting a zinc alloy.
Patent GB-561079-A (GB)
Title: Improvements in or relating to apparatus for conveying flat articles to a processingmachine
IPC: B65H9/14
Filed: 1941-06-27
Abstract: 561,079. Feeding sheets. STEVENS, A. -H. (Miller Printing Machinery Co.). June 27, 1941, No. 12026/42. Divided out of 561,072. [Class 100 (i)] Sheets or flat articles are fed to printing &c. machines by means of a conveyer belt which is accelerated after receiving a sheet and is finally decelerated before reaching a registering device so as to move at a slow speed after the article is arrested by the registering device. The invention is described in connection with a machine for feeding sheets to printing machines as described in Specifications 561,072 and 561,080 and in which a conveyer formed with a central line of apertures feeds the sheets over a feed board formed with suction apertures which are connected progressively to a source of suction. To give the desired motion to the conveyer belt 225, Fig. 2, it is driven by a pulley 234 driven by a belt 181 deriving motion from a pulley 193, Fig. 8, driven by a rotating crank arm 195 slotted to receive a sliding block 198 to which is pivoted a crank-pin on a crank 199 carried by the pulley 193. Since the cranks 195, 199 are eccentric to one another, the pulley 193 receives a variable motion which causes the sheet to be accelerated and then decelerated. The belt 181 also drives a pulley 249 which drives hold-down tapes 244 which are thus driven at a variable speed in synchronism with the speed of the traction belt 225. The sheets are separated from a pile 250 by oscillating suction feet 251 carried by rods 252 from arms 253 pivoted to oscillating cranks 254 and formed with pins 258, Fig. 3 (not shown), which travel in arcuate slots in guide plates 260. In a modification, the perforated traction belt is arranged to engage the tops of the sheets, and as shown in Fig. 7 a suction belt 367 arranged to engage the tops of sheets, co-operates with a lower belt to feed sheets in overlapped form from a pile 361 with which co-operates a suction separator 364 and a blast device acting upon the rear edge of the pile. An overlapping feed device may also be constructed with a suction belt engaging the bottoms of the sheets.
Patent GB-116194-A (GB)
Title: Improvements in or appertaining to Domestic Fire Places.
Inventor: SMITH WILLIAM ARTHUR
IPC: F24B1/193
Filed: 1917-08-22
Abstract: 116,194. Smith, W. A. Aug. 22, 1917. Grates.-A " barless " fitting for a range consists of sidepieces 2 and a plain or grated inclined front piece 3. The side pieces 2 have each a projection 2<a> which engages with projections 7a formed on detachable plates or strips 8, which are attached to the rear side of the front plate 9 of the range by bolts 10. The bottom grate 6 is supported by integral arms 5<a> which are passed through loops 4a on the underside of the front piece 3, so that their outer ends bear upon its underside. The strips 8 have each a series of perforations in any of which the bolts 10 are placed. Hooks g are formed on the side piece 2 to facilitate their removal and adjustment and perforated lugs are provided on them to receive the trivets k.
Patent GB-854345-A (GB)
Title: Itaconic ester adducts of bromotrichloromethane and their preparation and compositions thereof
IPC: C07C19/075
Filed: 1958-04-16
Abstract: The invention comprises a 1:1 adduct of bromotrichloromethane and an itaconic acid diester, the alcohol residues of said diester being alkyl radicals containing from 1 to 4 carbon atoms.  The adduct may be obtained by heating bromotrichloromethane and the itaconic acid diester to a temperature up to the reflux temperature, generally for about 3 to 15 hours, and a free radical generating catalyst, e.g. a peroxide such as benzoyl peroxide or acetyl peroxide, should also be present to accelerate the reaction.  It is preferred to use about 0,1 to 0,8 mols of the diester per mol of the bromotrichloromethane and to add a mixture of the diester and bromotrichloromethane in the preferred molar proportions portionwise or continuously to the reaction mixture. Excess bromotrichloromethane is conveniently removed by vacuum distillation.  Examples are given for the production of the dimethyl, di-n-butyl and di-n-propyl itaconic acid ester adducts with bromotrichloromethane.  The products have fungicidal properties (see Group VI).ALSO:A fungicidal composition includes as the essential ingredient a 1:1 adduct of bromotrichloromethane and an itaconic acid diester the alcohol residues of the diester being C1-C4 alkyl radicals (see Group IV (b)).  The composition may comprise the adduct suspended in an aqueous medium by means of an emulsifying agent, or dissolved in a solvent, e.g. aqueous acetone.
Patent GB-393405-A (GB)
Title: Wireless installation with one or more loudspeaker telephones spacially separated from the receiving and amplifying set
IPC: H04H20/83
Filed: 1932-04-27
Abstract: 393,405. Reproducing music &c. BRITISH GOLDRING PRODUCTS, Ltd., 119, Finsbury Pavement, London. April 27, 1932, No. 12128. Convention date, Jan. 29. Drawings to Specification. [Class 40 (iv).] In a system comprising one or more loudspeakers located at a distance from a wirelessreceiving apparatus, separate volume-controlling and tone-controlling devices are fixed to the casing of each loud-speaker.
Patent GB-709159-A (GB)
Title: Improvements in devices for destroying vermin
IPC: A01K13/00
Filed: 1952-05-13
Abstract: 709,159. Fumigating. HOSKINS, D. Sept. 16, 1952 [May 13, 1952], No. 12130/52. Class 81(1) A device for destroying vermin on fowls comprises a hollow casing containing one or more insecticidal substances and provided with an opening closed prior to use by a diaphragm which may be pierced when the device is required for use to allow the discharge of vapour. As shown in Fig. 1 the device is in the form of an egg provided with a rupturable inwardly projecting tube 6. Alternatively, as shown in Fig. 2, the device may be adapted for attachment to the leg of a bird, being provided with a rupturable inwardly projecting tube 14 and clips 17 and 18. Insecticides specified are nicotine, nicotine sulphate, naphthalene and paradichlorbenzene. A mixture of nicotine and naphthalene may be employed.
Patent GB-969072-A (GB)
Title: Process for the production of planographic printing plates having an aluminium support
IPC: C08G63/82
Filed: 1962-03-29
Abstract: In a process for producing planographic printing plates an aluminium plate carrying a silver image formed thereon by the silver salt diffusion process is smeared with a lacquer which is an acidic aqueous emulsion of a hydrophobic film-forming resin and which contains an organic compound having SH-, NH-, CS- or SeH- groups. The lacquer may also contain synthetic ester waxes, partially saponified ester waxes or shellac waxes: thickeners such as cellulose and its ethers and esters, polysaccharides and polyvinyl alcohol: and di- or tri-phenyl methane, polymethine or xanthene dyestuffs.  The lacquer may be acidified with a C5 or lower aliphatic fatty or hydroxy acid. Specified resins are phenol-formaldehyde resins, preferably novalacs, and natural shellac resins.  Over a 100 organic compounds having SH-, NH-, CS- or SeH- groups are listed including urea derivatives, compounds of the general formulae <FORM:0969072/C3/1> and other heterocyclic compounds.  The use of plates so obtained in the process described and claimed in Specification 913,591 is disclaimed. Specifications 699,892, 708,065, 753,434, 816,237, 851,816, 940,169, 942,822 and 942,823 also are referred to.ALSO:In a process for producing planographic printing plates an aluminium plate carrying a silver image formed thereon by the silver salt diffusion process is smeared with a lacquer which is an acidic aqueous emulsion of a hydrophobic film-forming resin and which contains an organic compound having SH-, NH-, CS- or SeH-groups.  The lacquer may also contain synthetic ester waxes, partially saponified ester waxes or shellac waxes; thickeners such as cellulose and its ethers and esters, polysaccharides and polyvinyl alcohol: and di- or tri-phenyl methane, polymethine or xanthene dyestuffs. The lacquer may be acidified with a C5 or lower aliphatic fatty or hydroxy acid.  Specified resins are phenol-formaldehyde resins, preferably novolacs, and natural shellac resins.  Over a 100 organic compounds having SH-, NH-, CS- or SeH- groups are listed including urea derivatives, compounds of the general formulae <FORM:0969072/C4-C5/1> and other heterocyclic compounds.  The use of plates so obtained in the process described and claimed in Specification 913,591 is disclaimed.  Specifications 699,892, 708,065, 753,434, 816,237, 851,816, 940,169, 742,822 and 942,823 also are referred to.
Patent GB-753168-A (GB)
Title: An improved method of obtaining drying oils from partially polymerised vegetable, animal and marine oils containing drying and non-drying constituents
IPC: C09F5/02
Filed: 1954-04-27
Abstract: The drying constituents are precipitated from partially polymerized vegetable, animal or marine oils containing drying and non-drying constituents by mixing with the oil an organic solvent containing not more than 5 per cent by volume of water.  The ratio of the volume of oil to volume of solvent may be within the range 1 : 3 to 1 : 10. The solvent may be acetone or a higher alcohol. In an example drying constituents are obtained from partially polymerized linseed oil. Specification 530,727 is referred to.
Patent GB-552159-A (GB)
Title: Improvements in or relating to wearing apparel
IPC: D06M15/05
Filed: 1941-09-20
Abstract: 552,159. Wearing-apparel. BRITISH CELANESE Ltd. Sept. 20, 1941, No. 12191. Convention date, Feb. 24. [Class 141] Wearing-apparel, and particularly coats, overcoats, and jackets, has loosely attached to its inner surface a foil comprising an organic derivative of cellulose, preferably cellulose acetate. Preferably, the foil is used as an interlining between the outer fabric of the garment and the ordinary lining, and it may be attached to either or both of these at local areas only by the application of heat and pressure. It may be perforated over a small portion of its area, for ventilation.
Patent GB-1463012-A (GB)
Title: Electric motor for use at high operating temperature
IPC: H02K5/22
Filed: 1974-03-19
Abstract: 1463012 Electric motors KLEIN SCHANZLIN & BECKER AG 19 March 1974 [27 March 1973] 12216/74 Heading H2A In an electric motor 2 wherein a stator winding is formed from integral non-jointed lengths of insulated conductor each having a corrosion resistant coating extending without interruption from end to end, the ends of the conductor lengths are led from the casing 8 of the motor via a passage 9 to a chamber 5 wherein all connections between the lengths themselves, and between the lengths of conductor and the supply conductors, are made, the passage 9 and chamber 5 being of such configuration that when the space 3 within the casing 8 becomes heated owing to operation of the motor, the temperature inside chamber 5 is substantially lower than that of the space 3. In the arrangement shown, the motor 2 has a canned rotor, and is used to drive a centrifugal pump 1 for circulating hot oil in a heating system, temperatures up to 450 C. being encountered. The passage 9 is provided with cooling fins 4, and the chamber 5 is secured to a terminal box 7. Nickel may be used to provide corrosion protection.
Patent GB-692203-A (GB)
Title: Improvements relating to servo control systems
Inventor: SMITH JAMES BOYD
IPC: G05D3/14
Filed: 1950-05-17
Abstract: 692,203. Electric correspondence control systems. FERRANTI, Ltd. May 16, 1951 [May 17, 1950], No. 12260/50. Class 40 (i) [Also in Groups XXIV and XXXV]. An electro-mechanical servo-device in which the torque developed by an output shaft is required to be dependent upon the sense and value of a control signal comprises two electrically controlled clutches 10, 11, Fig. 1, in parallel drives from a power source 17 to the output shaft 22. These clutches, which may be of the slipping friction type, transmit opposite torques to the shaft 22 which are in proportion to the squares of the respective control currents i<SP>1</SP>, i<SP>2</SP> of the clutches so that a resultant torque proportional to the difference between the currents i', i' is obtained. Means are provided, Fig. 2, for deriving the control currents i<SP>1</SP>, i<SP>2</SP> such that the sum of said currents is constant and their difference is dependent in sense and value upon the control signal which is represented by the movement of a control shaft 33 relative to the output shaft 22. Potentiometer sliders 32, 34 are coupled to the shafts 33 and 22 respectively, which when in similar positions maintain a valve circuit 40, 41, 50, 51 in balance, the anode currents of valves 50, 51 being the control currents i<SP>1</SP>, i<SP>2</SP> of the clutches 10, 11 respectively. If shaft 33 is moved it alters the potential difference between sliders 32, 34 which results in different potentials being applied to the control grids of valves 40, 41 which increases the anode voltage of one and decreases that of the other. These voltages are applied to the control grids of valves 50, 51 respectively to give a corresponding increase and decrease in the control currents i', i'. A differential torque is thus applied to shaft 22 which moves until it re-aligns itself with shaft 33 and re-adjusts slider 34 to a similar position to slider 32 when the valve circuit is again balanced.
Patent GB-416520-A (GB)
Title: Improvements in or relating to inverters for electric current
IPC: H02M7/44
Filed: 1933-04-27
Abstract: 416,520. Converting. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, BARTLETT, A. T., c/o General Electric Co., Witton, Birmingham, and DUNHAM, C. R., c /o General Electric Co., Wembley, Middlesex. April 27, 1933, No. 12293. [Class 38 (ii).] In an inverter system comprising valves 1, 2 supplied from a D.C. circuit 10, 11 and connected to an A.C. circuit through a transformer 6, means are provided for determining the period of conductivity of the valves 1, 2 to enable voltage regulation to be effected. This is accomplished by means of an additional valve 14, connected in series with a condenser 17 between the neutral point of the transformer primary 5 and the negative D.C. lead, which is controlled to take over current from either of valves 1, 2 at the desired point in the half cycle commutation being effected by means of condensers 19, 20. Continuation of current flow through the valve 14 is prevented by the condenser 17 which charges substantially to the potential of the D.C. circuit. The grid potentials are obtained from a rotating contact apparatus 21, the grid of valve 14 being connected to contacts on a movable arm 29 which may be controlled by a voltage responsive device 38. In a modification the grids of valves 1, 2 are supplied from a transformer connected to the output circuit, and the grid of valve 14 is supplied from a transformer through a full wave rectifier to give frequency doubling, the transformer being connected to the supply through a phase shifting circuit which may be adjusted by means responsive to the A.C. voltage. In a further modification the double frequency potential for the valve 14 may be obtained from a secondary winding on the choke 9, the phase of the potential being controlled by means of a phase shifting network. Specifications 374,855 and 407,589 are referred to.
Patent GB-379691-A (GB)
Title: Improvements in and relating to the grinding of gear wheels
IPC: B23F5/08
Filed: 1931-04-25
Abstract: 379,691. Grinding toothed gears. DEUTSCHE NILES WERKE AKT.-GES., 6, Riebestrasse, Weissensee, Berlin. April 25, 1931, No. 12323. Convention date, Feb. 28. [Class 83 (iii).] In a method of generating straight or helical spur gears by means of a reciprocating grinding- wheel of rack-tooth section, the grinding-wheel 2 has a thickness, on its pitch line, which is less than the width of a tooth space at the pitch circle, and one side r<1> of a tooth space is first generated by the tool surface 2<1> by a rolling movement in one direction, Figs. 2 and 3, after which the blank r is rotated slightly so that on the return rolling movement the tooth surface r<2> is generated by the tool surface 2<2>. At the end of the reverse rolling movement, Fig. 5, the blank is clear of the grinding-wheel and is indexed and also given a slight rotary movement to bring the next flank r<1> into position to be ground by the face 2<1> on the next forward rolling movement. In a machine embodiment the blank r is mounted on a rotary support 1<1> while the grinding-wheel is mounted on a slide 3 moving on an angularly adjustable guide 4 which may be set over to the helical angle of the teeth to be cut. In some cases two grinding- discs may be arranged at opposite sides of the blank. The machine frame carries an electric motor 6 which through gearing 15, 17, crank 19 and connecting-rod 7 reciprocates the slide carrying the grinding-wheel. A shaft 14 forming part of this gearing drives through bevel gears 24, 27 and further gearing 29, 31, 8, 33, 36, a wheel 37 on a threaded spindle 38 by which the tangential component of the generating movement is imparted to the table 1 carrying the blank-support. A branch transmission from this gearing drives through change gears 40 and worm 44, a worm wheel 45 secured to blank support to impart the required rotary generating movement to the blank. In order to impart the required angular movement to the blank at the ends of the rolling movement the spindle 38 carries a fixed disc 47 carrying adjustable stops 50, 51 coacting with an adjustable abutment 49 on a loose disc 48 secured to the wheel 37. At the end of the linear movement of the table 1 a lug 52 engages a stop 55 on a trip rod 54 to stop the drive for the linear table movement, while the drive for the table rotation continues until the stop member 49 is moved from one abutment 50 to the other 51. This gives the necessary movement to the blank to bring the opposite face of the grinding-wheel into position to grind the opposite flank of a tooth space on the return roll, which is initiated by reversal of the drive. A similar movement of the blank takes place at the end of the return roll. The grinding-disc is driven by a separate electric motor 10 and a belt 11.