baber/WOPTO huggingface dataset:
Patent GB-360015-A (GB)
Title: Improved process for sizing and finishing fibres and goods manufactured therefrom and for preparing printing colours
IPC: D06M15/11
Filed: 1930-07-28
Abstract: The mixture of polymeric carbohydrates, which on the average are tetrasaccharides and are obtained in known manner by the hydrolysis of wood or other cellulose materials by treatment with mineral acids is used in the preparation of printing colours and is added to sizing and finishing baths for fibres and goods manufactured therefrom.  In examples : (1) a finishing bath comprises, besides the mixture of saccharides, Epsom salts, dextrine, and Monopol soap; (2) a sizing bath for yarns comprises, besides the mixture of saccharides, glue and the flour of St. John's bread kernels; (3) a printing paste comprises the saccharide mixture, a vat dye, glycerine, Rongalite and solution salt.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following process for effecting hydrolysis of the wood &c.  The latter, in finely divided form, is placed in a series of diffusers and is systematically treated with 40 per cent hydrochloric acid.  The resulting solution of glucose and condensed sugars is freed from hydrochloric acid by evaporating in vacuo, and is brought to dryness by being atomized in a current of hot air.  The carbohydrates may also be used in dyeing processes. This subject-matter does not appear in the Specification as accepted.ALSO:The mixture of polymeric carbohydrates, mainly tetrasaccharides, obtained in known manner by the hydrolysis of wood or other cellulosic materials by treatment with mineral acid is added to sizing and finishing baths for fibres and goods manufactured therefrom.  In examples: (1) a finishing bath comprises, besides the mixture of saccharides, Epsom salts, dextrin, and Monopol soap; (2) a sizing bath for yarns comprises, besides the mixture of saccharides, glue and the flour of St. John's bread kernels.  The Specification as open to inspection under Sect. 91 (3) (a) comprises also the following process for effecting hydrolysis of the wood &c.  The latter, in finely-divided form, is placed in a series of diffusers and is systematically treated with 40 per cent hydrochloric acid. The resulting solution of glucose and condensed sugars is freed from hydrochloric acid by evaporating in vacuo and is brought to dryness by being atomized in a current of hot air.  This subject-matter does not appear in the Specification as accepted.ALSO:The Specification as open to inspection under Sect. 91 (3) (a) comprises the following process for the production of polymeric carbohydrates by the hydrolysis of wood or other cellulosic materials by means of mineral acids.  The wood &c., in finely divided form, is placed in a series of diffusers and is systematically treated with 40 per cent hydrochloric acid.  The resulting solution of glucose and condensed sugars is freed from hydrochloric acid by evaporating in vacuo and is brought to dryness by being atomized in a current of hot air.  This subject-matter does not appear in the Specification as accepted.
Patent GB-830492-A (GB)
Title: Apparatus for indicating the proportion of mis-fires occurring in a spark-ignition internal combustion engine
Inventor: ROGERS PETER OLIVER
IPC: F02P17/00
Filed: 1957-07-18
Abstract: 830,492. Electric tests. ESSO RESEARCH ENGINEERING CO. May 9, 1958 [July 18, 1957], No. 22767/57. Class 37. In apparatus for continuously indicating the proportion of mis-fires occurring in a sparkignition I.C. engine, pulses synchronous with mis-fires of the engine are used in conjunction with a potential proportional to the speed of the engine to produce further pulses of constant amplitude, the duration of which is inversely proportional to the engine speed. As shown, a lead from the primary coil of the ignition circuit (not shown) is connected to a rectifier 1, positive pulses A thereby produced being fed to a monostable trigger circuit 2 which supplies a series of positive pulses of equal duration and amplitude to an integrating circuit 11 to produce a potential representative of the engine speed, and a series of negative pulses B of fixed duration to a differentiating circuit 3 to produce a series of positive-negative pulses C. Simultaneously, pulses from the ignition circuit H.T. wire, which vary in intensity according to whether a fire or a mis-fire occurs, are applied, directly or by capacity coupling, to a tuned oscillator circuit 7 to produce a series of damped oscillations D which are rectified at 8 and supplied to a potentiometer 9 which is tapped so that, while pulses initiated by normal ignition operate a trigger circuit 10 to produce negative pulses F of duration greater than that of the pulses B, pulses resulting from misfires do not operate circuit 10. Pulses C and F are added at 4; when ignition is normal, the resultant pulse G is wholly negative and is blocked by a rectifier 5; on the occurrence of a mis-fire, in the absence of pulse F the rectifier passes the positive portions K of pulses C to operate a mis-fire counter 6; they are also amplified at 13 and supplied to a trigger circuit 12 to produce pulses of constant amplitude, of frequency depending on the frequency of mis-firing and of duration depending inversely on the potential supplied to the circuit 12 from the integrating circuit 11. These pulses are fed to an integrating circuit 14 and a meter 15, both of which may be comprised by a voltmeter.
Patent GB-663464-A (GB)
Title: Oscillator for non-sinusoidal waves
IPC: H03K4/16
Filed: 1948-08-30
Abstract: 663,464. Saw-tooth generating circuits. RADIO CORPORATION OF AMERICA. Aug. 30, 1948 [Sept. 27, 1947], No. 22814/48. Class 40 (vi). In a blocking oscillator having a transformer coupling the anode to control grid, the anode winding is connected between anode and H.T. + and the grid section in series with a capacitor between grid and H.T. +. A second capacitor connected to the anode being periodically discharged when the valve is rendered conducting. The Figure shows a blocking oscillator circuit in which an auto-transformer 12 provides the normal anode to grid circuit feed-back coupling. When valve 19 is non-conducting due to the negative charge on capacitor 23, capacitor 32 is charged linearly from the H.T. supply via resistors 37, 36. During this period the charge on capacitor 23 leaks away via resistors 53, 54 until just before valve 19 is rendered conducting by the rising grid voltage a negative-going synchronizing pulse 26 applied to the cathode drives the grid positive so that the valve conducts and due to the normal feed-back through transformer 12 capacitor 32 rapidly discharges through valve 19. The control grid is driven highly negative during the discharge of capacitor 32 due to both the negative charge acquired by capacitor 23 and by inductor 12 ringing with the associated stray capacities, the oscillation, however, being damped out by resistor 38 after the first negative potential swing which is of large amplitude, Fig. 3 (not shown), the valve is then cut-off and the cycle is repeated. An. iron-cored auto-transformer may be used with a damping resistor connected across only part of the windings and positive-going synchronizing signals may be applied to the control grid, Fig. 4 (not shown). In a further modification, Fig. 5 (not shown), the synchronizing signals are applied to an auxiliary winding on the coupling transformer and the pulse repetition frequency is adjusted by varying the position of an adjustable core in the auto-transformer.
Patent GB-242398-A (GB)
Title: Improvements in or relating to electric switch boards
IPC: H02B11/24
Filed: 1924-09-27
Abstract: 242,398. Switchgear & Cowans, Ltd., and Neep, G. H. Sept. 27, 1924. Sliding-switch-carriage arrangements in which closing members for the contact apertures in the fixed switchgear structure are operated by the movement of the truck member are provided with a sliding frame in the rear of the apertured partition carrying closing members in the form of pivoted flaps which are held rearwardly by cross bars on the sliding frame so that when the truck member is withdrawn the closing members are locked in position. As shown the frame 11 is moved upwards on inward movement of the truck 5 by a cam surface 15a on a projection 15 entering an aperture 16 in the fixed partitior 7 and engaging a roller 13 attached to the frame 11. Cross bars 10 on the frame 11 engage hooked extension 9 on pivoted flaps 8 closing the apertures 7a and thus raising them as shown in the upper part of Fig. 1 so that contact may be established between the plugs 6 and sockets 4. On withdrawal of the switch-carriage 5 the frame 11 is moved down by the lower side of the cam 15<a> engaging a roller 14 and the bars 10 are moved behind the closed flaps 8 as shown in the lower part of Fig. 1 so locking them in position so that no access to the sockets 4 can be made. The aperture 16 may be provided with a hinged or sliding flap which may be closed and locked in position. The flaps 8 may alternately be arranged to be raised by the plugs 6 in their inward movement.
Patent GB-758227-A (GB)
Title: Milling cutter
IPC: B23C5/22
Filed: 1954-08-06
Abstract: 758,227. Milling-cutters. WALTER, V. M. Aug. 6, 1954 [Aug. 19, 1953], No. 22877/54. Class 83 (3). A milling cutter comprises blades 11, 12 set at different angles but having cutting edges 16, 17 following the same cutting path. The peripherally-mounted blades 12 alternate with the face-mounted blades 11. The blades are clamped by wedges 13 and screws 14 as in Specification 716,016.
Patent GB-402892-A (GB)
Title: Improvements in or relating to means for eliminating draught through closed doorwaysand the like
IPC: E06B7/232
Filed: 1932-08-15
Abstract: 402,892. Draught - excluders. TIMMIS, A. H., 101, Harrow View, Harrow, Middlesex. Aug. 15, 1932,No.22893. [Class 20 (iii).] To eliminate draught past the edge or margin of a closed door, casement window, or the like, a strip of thin flexible material 4, longitudinally folded over once upon itself, is positioned between the door 1 or the like and its frame 3. The material may be " Cellophane " (Registered Trade Mark) or other substantially airproof substance of such thinness, flexibility and resilience as to become operative by ballooning when filled by the draught. One fold of the strip is attached either to the door or to the frame with its outer edges disposed towards the direction from which the draught is coming. In the event of the door opening into the draught, Fig. 5, the strip is preferably secured to the door whereas it is preferably secured to the frame, Fig. 7, when the door opens away from the draught. The strip may be gummed in position. Specification 2211 /08, [Class 20, Buildings &c.], is referred to. The Provisional Specification states also that the strip may be made of paper, fabric, or sheet rubber.
Patent GB-1403782-A (GB)
Title: Method for inhibiting the deposition of wax from wax-containing  crude oil
IPC: B26B21/14
Filed: 1972-05-16
Abstract: 1403782 Inhibiting deposition of wax from crude oil UNION OIL CO OF CALIFORNIA 16 May 1972 22989/72 Heading C5E The deposition of wax from waxy crude oils onto metal surfaces in contact with the oil is inhibited by incorporating into the oil a copolymer of ethylene and vinyl acetate containing 35 to 70% of vinyl acetate and having a melt index of 1 to 600 g. per 10 minutes. The method can be applied to the oil in a well. A solution of the polymer in an organic solvent may be added to the oil when it is warm enough to maintain the wax in solution, and the oil when cooled below the soldification point of the wax. Accumulated wax deposits can be removed from metal surfaces in contact with a waxy crude oil by the periodic addition of the copolymer of the oil.
Patent GB-1170799-A (GB)
Title: Semiconductor devices
IPC: H01L21/00
Filed: 1967-05-18
Abstract: 1,170,799. Electroluminescence. INTERNATIONAL BUSINESS MACHINES CORP. 18 May, 1967 [15 July, 1966], No. 23009/67. Heading C4S. [Also in Division H1] An electroluminescent diode includes a compensated P-type region 12 containing an excess concentration of acceptor impurities of the order of 10<SP>17</SP> cm.<SP>-3</SP> or lower and a free hole concentration of less than 10<SP>17</SP> cm.<SP>-3</SP>, at which electrons injected across the forward-biased junction 16 recombine with holes trapped at the acceptor level causing the emission of radiation of lower energy (i.e. longer wavelength) than the material band gap. Owing to the low acceptor excess, emission takes place throughout the region 12, which may be 50-60 Á thick and which may or may not be provided with a P+ contact region 14 from which positive holes are injected into the region 12. In the preferred form the diode is of GaAs containing Si, Ge or Sn as a dopant. These elements are all amphoteric in GaAs, dependent on the precise mode of growth. A melt of GaAs containing Si and a small stoichiometric excess of Ga is contacted at 935‹ C. with a (100) surface of an N-type GaAs substrate containing Si as the dopant. The surface of the substrate melts, and, on cooling gradually, recrystallizes as GaAs including Si in both donor and acceptor forms. The initially recrystallized layer contains an excess of donors, and is thus N-type, but as the temperature is reduced the subsequently recrystallized portion contains a small excess of acceptors. The completed crystal is lapped to the required thickness of region 12, and Zn is diffused in at 650‹ C. to provide the P+ type region 14. If the region 14 is omitted, hole injection into the region 12 occurs directly from the ohmic contact 20. The completed device may be potted in an antireflecting coating of epoxy resin. The invention is also applicable to semi-conductor lasers.
Patent GB-155632-A (GB)
Title: Improvements in or relating to mechanical toys
IPC: A63H7/06
Filed: 1919-09-18
Abstract: 155,632. Brietsche, D. M. F., and Adolph, C. F. Sept. 18, 1919. Mechanical toys. - Relates to a toy butterfly which flaps its wings when the toy is pulled along on its wheels. The base consists of two parts A, A<1> which represent a leaf and a flower respectively. The wings C are hinged at C<1> and connected by links F to the cranked axle E of the wheels E<1>. A wire skid G prevents the toy from tilting too far backwards or forwards.
Patent GB-647051-A (GB)
Title: Apparatus for burning low-sintering temperature fuels
IPC: F23G5/00
Filed: 1944-11-20
Abstract: 647,051. Steam generator &c. furnaces or gas producers. DALIN, D. Nov. 20, 1944, No. 23070. Convention date, Nov. 11, 1943. [Classes 51(i) and 55(i)] All kinds of solid fuels and particularly oleaginous shale, refuse and garbage are burnt or gasified in a vertical shaft comprising walls composed of cooling tubes spaced apart to admit air for combustion and the escape of gases which may be burnt immediately for steam generation or led away for use in other apparatus. The fuel to be burnt or gasified is fed by a hopper 1 to the upper part 4 of a vertical shaft 5 having vertical walls formed of tubes 16 for the circulation of steam or water. The fuel is burnt in the shaft by air admitted at 20 and passed between the tubes 16 through the ashes at the lower part of the. shaft where it is heated to a distributing chamber 21 from which it passes under the control of dampers 22 between the front wall tubes for combustion of the fuel the gases from which pass through the spaces between the tubes of the other wall to a chamber 15 and thence through the fuel in the upper part 4 of the shaft for heating or drying purposes to a chamber 14 where they may be burnt with the addition of air admitted at 28 and serve for heating a boiler 24 or be led away for use in other apparatus. Combustion products, steam or nitrogen, may be admitted at 25 to he chamber 21 to control the combustion in the shaft. The fuel entering the hopper 1 is exposed to heat from the combustion of gases from the fuel burnt by the addition of air entering through openings 8, 9. The heat radiated from the chamber 7 to the fuel at 2 may be controlled by a movable shutter 11 formed of tubes for water or steam. A similar shutter is installed in the outlet 13 leading to the chamber 14. The wall tubes 16 have flanges welded to them to restrict the passage of air and gases and prevent the passage of fuel between the tubes. When treating oleaginous shale the part 4 of the shaft may be closed to the gases from the chamber 15 so that it forms a distillation chamber from which the distilled gases may be separately withdrawn. Specification 647,119 is referred to.
Patent GB-231206-A (GB)
Title: Improvements in and relating to dyes and to the dyeing of acetyl silk
IPC: C09B1/58
Filed: 1923-09-14
Abstract: The diphthalimidoanthroquinones described in Specification 214,765 are nitrated, the products are hydrolyzed and treated with albate sulphide; the resulting dyestuffs appear to be hexaminodianthraquinonylthioethers and dye cellulose acetate goods or wool in blue shades.  According to examples, 1 : 5-diphthalimidoanthraquinone is nitrated, the nitro body is hydrolyzed by sulphuric acid, and then treated with sodium sulphide and caustic soda; or the nitro body is treated with sodium sulphide and caustic soda, and the partiallyhydrolyzed condensation product is treated with sulphuric acid to complete the hydrolysis.  The solution of the hydrolyzed product in concentrated sulphuric acid may be diluted with water to bring the acid strength to about 70 percent, thus precipitating the dyestuff in a purified form; the mother-liquor from this precipitation yields a small amount of a dyestuff giving violet shades on acetate silk.  An example is given of dyeing acetate silk with an aqueous suspension of the hexaminodianthraquinoylthioether.  Specifications 139,232, 190,732, 196,641, and 200,186, [all in Class 2 (ii), Cellulose &c.], also are referred to.ALSO:Cellulose acetate goods are dyed in blue shades from aqueous solutions or suspensions of the products (hexaminodianthraquinonylthioethers) prepared by nitrating the diphthalimidoanthraquinones described in Specification 214,765, [Class 2 (iii), Dyes &c.], hydrolyzing the nitro bodies and treating with alkali sulphides.  The dyestuffs may be purified by diluting to about 70 per cent strength solutions in concentrated sulphuric acid; the mother-liquor from this precipitation yields a small amount of a dyestuff giving violet shades on acetyl silks. Specifications 139,232, 190,732 196,641, and 200,186, [all in Class 2 (ii), Cellulose &c.], also are referred to.
Patent GB-1469323-A (GB)
Title: Motor vehicle with a reinforced braced door
IPC: B60J5/04
Filed: 1974-05-23
Abstract: 1469323 Vehicle doors BAYERISCHE MOTOREN WERKE AG 23 May 1974 [6 June 1973] 23114/74 Heading B7J A door 1 in a motor vehicle has reinforcement in the form of a longitudinally extending corrugated rail 3 supported by a bracing member 4 which abuts a portion 5 of a sill 2 or other door frame part when the door is closed so as to enhance passenger protection in the event of a lateral impact on the vehicle. As shown, the rail 3 is carried by an outer door panel 8 and has a bottom flange 17 which is mounted on rubber padding 20 and from which extends the member 4 of shallow V-section with corrugations 26, crests 27 of the corrugations 26 extending in a straight line from the joint at flange 17 to a joint at 25 of the member 4 to the bottom edge 12 of inner door panel 7. As well as the illustrated bracing member 4 abutting the sill flange portion 5 via panel 7, the ends of rail 3 may be braced by further members abutting against flanges of the door posts. The bracing member 4 and the rail 3 may be formed integrally with one another if space is very restricted.
Patent GB-641462-A (GB)
Title: Improvements in refrigerating apparatus
IPC: F25B39/02
Filed: 1945-09-10
Abstract: 641,462. Refrigerating. STIERLIN, H. Sept. 10, 1945, No. 23252. Convention date, Sept. 9, 1944. '[Class 29] Absorption apparatus.-The condenser K and the absorber A are formed of identical U-shaped bent tubes a, a<SP>1</SP> with diverging arms provided with cast-on fins b, b<SP>1</SP> for cooling, the tubes being superposed in alignment so that they cover each other in plan. The fins are thicker at the roots. A pipe d conveys condensed refrigerant to the evaporator E. Specification 634,432 is referred to.
Patent GB-897067-A (GB)
Title: Method of improving soil
Inventor: BROOKES ALFRED
IPC: C05C9/02
Filed: 1959-07-07
Abstract: The base of a soil conditioner (see Group I) comprises a comminuted urea-formaldehyde foam, the latter being formed by heating a dilute aqueous solution of a low condensed urea-formaldehyde resin containing a foaming agent, adding an acid or acid-reacting material which causes the mass to set, and thereafter drying the mass to harden the foam.  The nitrogen content of the product may be varied by varying the urea-formaldehyde ratio of the foaming solution.  Thus there may be added to the solution urea, methylene urea, ureaform precipitates or formaldehyde polymers such as paraformaldehyde or alpha-polyoxymethylene.  The following substances may be added to the resin: fungicides and insecticides, e.g. those known as Aldrin and Dieldrin; trace elements, e.g. boron, manganese and zinc in the form of suitable compounds; plant nutrients or foam stabilizers, e.g. potassium sulphate or nitrate, calcium phosphate, bone meal, bone glue, skin glue, fish glue, slaughterhouse blood, casein, gelatine, albumen, alginates, starches and flour; light weight fillers, e.g. ex-foliated vermiculite, popcorn, chopped straw, ricehulls, cotton seed hulls, husks, wool-waste, carpet shoddy and scrap leather fibre.ALSO:A substance for tilling into the soil in order to reduce the bulk density of the latter, conserve its maisture content, and increase the supply of plant nutrient therein, comprises basically a comminuted urea-formaldehyde foam (see Groups IV(a) and V), to which may be added fungicides, insecticides, ammonium sulphate, potassium sulphate, potassium nitrate, calcium phosphate, bone meal, bone glue, skin glue, fish glue, slaughterhouse blood, brown, manganese and zinc.ALSO:The base of a soil conditioner (see Group 1) comprises a comminuted urea-formaldehyde foam, the latter being formed by heating a dilute aqueous solution of a low condensed urea-formaldehyde resin containing a foaming agent, adding an acid or acid-reacting material which causes the mass to set, and thereafter drying the mass to harden the foam.  The foam may also be produced by blending a fusible, heat-reactive urea-formaldehyde powder resin with a gas-liberating substance such as guanidine carbonate, together with a hardening agent and any other additives, and sintering or melting the blend to a mass which foams and hardens and does not need drying.  A further method of producing the foam is from low density fillers such as exfoliated vermiculite popcorns, chopped straw, rice-hulls, cotton-seed hulls, husks, wool waste, carpet shoddy and scrap leather fibre, by impregnating or spraying with liquid urea-formaldehyde adhesives and hardeners, drying or agglomerating into granules and hardening or lightly compressing into low density masses which are further hardened and comminuted, the light weight fillers may also be mixed with liquid foamed urea-formaldehyde resins.
Patent GB-587988-A (GB)
Title: Improvements in and relating to the handling and purification of pulverulent material
IPC: C23C8/60
Filed: 1944-11-24
Abstract: 587,988. Separating solid materials. KEIGHLEY LABORATORIES, Ltd., and MILLER, C. P. Nov. 24, 1944, No. 23393. [Class 117] In purifying material such as used case hardening or carburising compound the material is sucked up a pipe 6 and the fines pass through a sieve 8 while the undesired heavy material passes through a hole 9 in the apex of the sieve the remaining material being removed by suction up a pipe 10 adjacent the hole. This latter material then passes through one or more sieving processes. In the example shown the good material collects in hopper 2 whereas the dust passes through sieve 15 and fan 13 to a dust extractor 14.