baber/WOPTO huggingface dataset:
Patent GB-594223-A (GB)
Title: Improvements in or relating to urinals
IPC: E03D13/00
Filed: 1945-06-29
Abstract: 594,223. Urinals. ADAMS, A. H., and ADAMS, B. June 29, 1945, No. 16625. [Class 26] A urinal range comprises a number of cradleback urinal stalls a alternating with flat slabs b, the edges of which stalls may have rebates to receive the slabs, which rebates are of single, channel or mitre form, c<SP>1</SP>, c<SP>2</SP>, or c3, a channel f with an outlet e receiving the flush. The end slabs may be vertical and L-shaped, or a flatend slab may be rebated along one edge to receive a flat-back slab, so that the urinal may be continued along a second wall. In the Provisional Specification it is also stated that an anti-splash lip or ledge may be provided at the base of each cradle back or slab.
Patent GB-990529-A (GB)
Title: Sealing process and sealer device
IPC: B29C65/02
Filed: 1962-05-01
Abstract: 990,529. Seaming non-metallic sheet material. NATIONAL DISTILLERS & CHEMICAL CORPORATION. May 1, 1962 [Nov. 7, 1961], No. 16653/62. Heading B5K. [Also in Division B8] Two ormore superposed films of thermoplastic material are fused together over a multiplicity of discrete adjacent areas defining a sealed portion, the fused areas constituting from ¢ to 10% of the area of the sealed portion. Preferably, the sealing is effected by a device comprising a flat bar or a cylinder provided with truncated rectangular pyramids 20, Fig. 10, having flat sealing surfaces 21. Alternatively; the sealing projections may be frusto-conical. The device may be in the form of a rotatable roller 12, Fig. 1, to seal the ends of a wrapper in a bread wrapping machine or in the form of a convex plate 16 to seal the bottom of the wrapper. The device may be a hand sealer having a flat surface, Fig. 3 (not shown), or spaced surfaces 38 mounted on a roller 37, Fig. 4. In modifications, the sealing surface is knurled or serrated or may comprise a wire screen or may be made of stainless steel, brass or aluminium. In a further modification, Fig. 5, the sealer comprises a wire-brush structure 41. The sealing areas may be disposed in special configurations. Figs. 7 and 8 (not shown). The device may be heated by an element inserted into the sealer or in contact therewith or by heating the sealing surface with radiant energy from a quartz lamp. The device is preferably used for sealing biaxially oriented polypropylene film. Examples of dimensions of the pyramids 20 and sealing temperatures and dwell time for polyethylene and polypropylene film are given in the Specification.
Patent GB-500094-A (GB)
Title: Improvements in and relating to dry rectifiers and photo-electric cells
IPC: H01L21/08
Filed: 1938-06-03
Abstract: 500,094. Asymmetrically - conducting resistances. BRITISH THOMSON-HOUSTON CO., Ltd. Junc 3, 1938, Nos. 16687 and 16688. Convention dates, June 5, 1937 and June 12, 1937. Addition to 497,034. Drawings to Specification. [Class 37] [Also in Group XL] The process according to the parent Specification is utilized for the manufacture of photo-electric cells, and, where metal is used for the treatment of the superficial oxide layer, such metal treatment is continued after the oxide film has been rendered conductive, so as to form a film on the surface, whereby the formation of the crystalline modification of the selenium deposited thereon is facilitated. This latter part of the process is applicable to the manufacture of dry rectifiers and of photoelectric cells.
Patent GB-755570-A (GB)
Title: Burner for oil under pressure and having means for pre-heating the fuel
Inventor: LEHRER FRITZ
IPC: H05B6/02
Filed: 1954-06-04
Abstract: 755,570. Induction heating. UNITHERM OSTERREICHISCHE GES. FUR UNIVERSELLE WARMETECHNIK. June 4, 1954, No. 16682/54. Class 39(3). An induction heater for preheating fuel oil immediately adjacent a burner nozzle comprises a cylindrical housing 12 containing a coil 13 which induces currents in concentric cylindrical surfaces 15 and is spaced therefrom by a jacket 14. Liquid fuel is admitted at 16 and passes between the surfaces 15 in the direction of the arrows and flows from the heater through a hollow magnetic core 11. The core is in two parts to allow for expansion. The fuel may be additionally preheated by passing it through the walls of the housing in which case it is fed to the heater at 16a and leaves at 17a. The burner nozzle is directly heated by the device which is arranged inside a pipe supplying air to the burner.
Patent GB-799500-A (GB)
Title: Improvements in or relating to electric torches
IPC: F21V23/00
Filed: 1956-05-30
Abstract: 799,500. Electric battery lamps. CHENG, W. G. May 30, 1956, No. 16736/56. Class 39(2) [Also in Group XXXVII] In a portable battery lamp or torch of the kind comprising a tubular metal casing 1 for a dry battery 14, with two lamp bulbs 7 and 19 mounted at opposite ends of the casing and a two-way switch for selectively illuminating either bulb, the switch comprises a slider contact 34 located within a housing 25 on the outside of the casing 1 and mechanically coupled to a slidable push button 26 on the outside of the housing, the slider contact 34 being provided with a stud 33 which engages within an aperture in the housing 25 when the push button 26 is in the " off position and can be released from the aperture by depressing the push button before sliding the latter into either of the two "on" positions. The push button 26 comprises a hollow sheet-metal member formed with an aperture for a stud 30 of plastic or other material which is slidable therein and held normally in an outer position by a bowspring 31 provided with a central inwardlydirected projection 32 which abuts against the locking-stud 33 of the slider contact 34. A bow-spring 40 located behind a head on the inner end of the stud 33 maintains the outer end of the latter flush with the outer surface of housing 25 When the switch is in its "off" position. Pressure upon the stud 30 accompanied by upward movement of the push button 26 causes slider contact 34 to be released and connect a fixed contact 36 electrically to the battery casing 1, thereby completing the circuit comprising the bulb 19, spring 20, and battery 14, through a metal ring 45, Fig. 2, provided with a lug 46 in engagement with the base 47 of the bulb socket, the positive pole at the other end of the battery being connected to the contact 36 through a plate 38 riveted to a metal strip of which contact 36 forms the end. Downward movement of the push button 26 places contact strip 34 across contacts 35 and 37, the latter being at one end of a metal strip 39 bearing permanently on a metal reflector 4 carrying the bulb 7. A plastic sleeve 6 screwed into a neck integral with the reflector 4 engages a flange 5 on the lamp cap and holds it against a flange at the inner end of the neck of the reflector. Contact 35 is at the lower end of a metal strip 23, the upper end of which, Fig. 2, abuts against an inverted metal cup 18 located between the battery contact spring 20 and an insulating disc 17 carrying the socket of bulb 19. Specification 799,499 is referred to.
Patent GB-1510735-A (GB)
Title: Process for making n-methyl nitrophthalimides
IPC: C07B43/02
Filed: 1975-04-23
Abstract: 1510735 Isolating N-methyl-3 and 4-nitrophthalimides GENERAL ELECTRIC CO 23 April 1975 [8 May 1974] 16788/75 Heading C2C A process for isolating a mixture of N- methyl - 3 - nitrophthalimide and N - methyl- 4-nitrophthalimide from a concentrated sulphuric acid solution thereof comprises extracting the solution with methylene chloride. The solution is suitably obtained by contacting a solution of N-methylphthalimide in 98-100% concentrated sulphuric acid with 98-100% concentrated nitric acid at a temperature of from 60 to 80 C.
Patent GB-380491-A (GB)
Title: Improvements in reversible propellers
IPC: B64C11/36
Filed: 1931-06-10
Abstract: 380,491. Screw propellers. HARDIN, H. H., Maitland, and HILSABECK, E. G., Graham, both in Missouri, U.S.A. June 10, 1931, No. 16880. Convention date, June 10, 1930. [Class 114.] The blades of a variable pitch propeller are mounted eccentrically in flanges on the boss. The blades 13, 14 have flanges 18, 19 secured to flats 12 on a boss 11 by lugs 43 and rotatable on eccentric pins, whereby the axis 36 of the blade has an arc adjustment about the centre 17. The flanges 18, 19 have lugs connected by links 28, 29 to a collar 22 which is movable longitudinally by a ring 30 and control lever 35.
Patent GB-219315-A (GB)
Title: Improvements in or relating to carburettors for internal combustion engines
IPC: F02M15/02
Filed: 1924-07-15
Abstract: 219,315. Birkigt, M. July 18, 1923, [Convention date]. Spray carburettors.-The outlet pipe a<1> and throttle casing of each of the carburettors a are formed with a flange b of relatively large area extending downward along the side of the cylinders, the flanges being bolted directly to a flat surface c of the jacket castings whereby the carburettors are heated by conduction from the engine cylinders. The engine shown has two rows of six cylinders in V formation, and the throttle valves of the carburettor of each row are actuated by a single rod e which is provided with means for varying the relative settings of the valves. According to the Specification as open to inspection under Sect. 91 (3) (a) the heating may be intensified bv the use of ribs or fins. This subject-matter does not appear in the Specification as accepted.
Patent GB-349322-A (GB)
Title: Manufacture of cellulose esters
IPC: D01F2/28
Filed: 1930-06-02
Abstract: 349,322. Cellulose esters ; treating textiles. SOC. OF CHEMICAL INDUSTRY IN BASLE, Basle, Switzerland. June 2, 1930, No. 17014. Convention date, June 1, 1929. [Classes 2 (ii) and 15 (ii).] Cellulose esters free from sulphur are formed by treating a cellulose xanthate or cellulose xanthic acid at a raised temperature with an organic acid anhydride in presence or absence of a solvent and if desired in presence of a catalyst. The process may be applied to unformed material or to formed products, e.g. threads, films, webs, &c., whereby they may be rendered stable against water and also immunized to substantive dyestuffs, wholly or in selected areas. Modifications in lustre may also be produced by varying the conditions. In examples : (1) a cotton web is impregnated with viscose, dried and treated with acetic anhydride at 140‹ C., if desired, in presence of xylene, to obtain a durable dressing stable against water; (2) crude viscose is applied locally to a web or yarn, e.g. by printing, and, after drying, the material is treated with hot acetic anhydride to obtain a product having areas reserved towards substantive dyestuffs but adapted to be dyed vividly by acetate silk dyestuffs; (3) a skein of cotton is xanthated by treatment with alcoholic potash followed by carbon bisulphide and after removal of excess carbon bisulphide is treated with boiling acetic anhydride; (4) bleached wood pulp is converted into viscose which is spun into a non- regenerative bath and the precipitated thread is treated with a boiling solution of 20 per cent acetic anhydride in toluene; (5) the xanthate thread of (4) is treated with acetic anhydride at about 100‹ C. and centrifuged and washed with water to obtain a lustreless, matte artificial silk, or a lustrous product is obtained by separating adhering acetic anhydride by evaporation before washing; (6) a skein of finished cellulose artificial silk-viscose, copper or nitro-silk-is converted into xanthate, as in (3) and is then treated with acetic anhydride in xylene, giving an increase in weight of 60 per cent and more than double the wet tenacity of the untreated threads, or by treatment with maleic anhydride in xylene an increase in weight of 90 per cent is obtained ; (7) fibrous cellulose xanthate is immersed in zinc chloride solution, pressed and treated with acetic anhydride in xylene to obtain a hard, brittle product consisting of cellulose triacetate which is soluble in glacial acetic acid and nitrobenzene but which only swells in chloroform, or, in absence of xylene, a product which goes into solution and which is soluble in glacial acetic acid, nitrobenzene and chloroform and partly soluble in acetone.
Patent GB-654238-A (GB)
Title: Method of curing latex and the like by high frequency heating
IPC: B29C35/12
Filed: 1946-06-05
Abstract: 654,238. Moulding thermosetting compositions dispersed in an electrolyte. SPERRY, J. A. June 5, 1946, No. 17074. Convention date, June 7, 1945. [Class 87 (ii)] [Also in Group XI] A dielectric thermosetting composition disparsed in an electrolyte such as foamed latex in water is cured by high-frequency heating between two electrodes 51 in a mould 29 of dielectric material which is shaped, for instance as shown, so that one part of the latex dispersion is thicker than the other and is heated to a higher temperature, water vaporizing from this part so that its temperature drops and another part to which the water has volatilized is heated to this higher temperature until all has been cured. The mould shown is for a seat back and comprises a bottom 29 and a top 37 carrying cores 30 of wood, glass or porcelain which form resiliency apertures in the finished product and which are screwed in reinforcing strips 34. The mould is shaped on a form and is made of several plies of glass fabric treated with a stiffening agent. The edges of the mould are reinforced by wood strips 27. The moulding surface may be lined with fabric, a cement of magnesia and resin-forming material, or fibres or powder may be blown thereon.
Patent GB-990309-A (GB)
Title: Improvements in or relating to electric circuits for matching high impedance signal sources to low impedance loads
Inventor: KANDIAH KATHIRKAMA THAMBY
IPC: H03F1/56
Filed: 1963-05-01
Abstract: 990,309. Transistor amplifying circuits. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. April 14, 1964 [May 1, 1963], No. 17276/63. Addition to 973,753. Heading H3T. A circuit for matching a high impedance signal source to a low impedance load comprises a field effect transistor having a feedback loop comprising two further transistors. As shown, signals at 2 are fed to the gate of a pchannel field effect transistor 1, the source electrode of which is coupled to an output terminal 5. A feedback path is provided from the drain to the source electrode via transistors 8, 11 and Zener diode 14 so that the source/ drain voltage is maintained constant. The voltage gain is substantially unity. Alternatively, an n-channel field effect transistor may replace the cathode follower shown in Fig. 1 of the parent Specification 973,753.
Patent GB-273725-A (GB)
Title: Improvements in or relating to signal recording
IPC: H04N1/23
Filed: 1927-06-29
Abstract: 273,725. Bethenod, J. June 30, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Eliminating effects of disturbing currents.- The message is repeatedly transmitted by a perforated-tape transmitter and the corresponding signals are arranged to produce superimposed marks upon the record.
Patent GB-102508-A (GB)
Title: Improvements in Means for Suppressing or Damping Axial Oscillating Movements of Rotating Shafts.
IPC: F01D25/04
Filed: 1916-12-02
Abstract: 102,508. S v e n s k a Turbinfabriks Aktiebolaget Ljungstrom. Dec. 2,1915, [Convention date]. Vibration-dampers.-A device for damping the oscillations of rotating shafts comprises adjustable friction means which resists displacement of the shaft while allowing free rotation. The Figure shows part of a flange coupling a for connecting a shaft b to a steam-turbine shaft. The shaft b carries a disk c which can rotate freely between series of balls d, e bearing on races f, g. The ball races have spherical outer surfaces bearing against flanges h, i of a hollow piston k, the flange i being removable. The piston k is arranged inside a cylinder l, and movement is resisted by the friction of packing m of leather &c. adjusted by a sleeve n and screwed plug o. Oil is introduced through a channel p, and escapes at q. Relative axial movement of the disk c is prevented during rotation by centrifugal action on the balls d, e. The friction device may be arranged radially, and movement transmitted by a bell-crank lever, and the friction surface may be plane or of other non-cylindrical shape.
Patent GB-814385-A (GB)
Title: Improvements in or relating to the manufacture of mouthpiece cigarettes
IPC: A24C5/52
Filed: 1955-08-29
Abstract: The subject-matter of this Specification is identical with that of Figs. 8-10 of Specification 814,383 and with that of Specification 814,386, but the claims relate to the feeding of mouthpiece stubs endwise along a guideway by compressed air. Specification 770,173 also is referred to.
Patent GB-938053-A (GB)
Title: Process for the preparation of aminoalkyl hydrogen sulphates and their conversion toalkylene amines
Inventor: FORSHAW EDWARD ROBERT ANTHONY
IPC: C07D203/08
Filed: 1960-05-17
Abstract: Monoalkanolamines are reacted with sulphuric acid to give the corresponding sulphuric acid salts which are then heated to give the corresponding aminoalkyl hydrogen sulphates, the conversion being carried out wholly or partly by the use of a film drier. The aminoalkyl hydrogen sulphates so formed may be reacted with an alkaline reacting substance to give the corresponding alkylene imines.  The monoalkanolamines used as starting materials are those in which the hydroxyl and amino groups are attached to adjacent carbon atoms.  The preferred alkaline reacting substance is caustic soda.  Examples are given of the conversion of monoethanolamine to the sulphuric acid salt which is heated on a film drier to give aminoethyl hydrogen sulphate which is reacted with caustic alkali to give ethylene imine.
Patent GB-200682-A (GB)
Title: Improvements in machines for turning jam pots or the like
IPC: B28B1/02
Filed: 1922-06-24
Abstract: 200,682. Ingrram, W. June 24, 1922. Throwing and turning.-In a machine for shaping jam pots and the like, the traverse of the cutting tools G and H is automatically regulated to suit varying diameters by means of a cone F connected to the sliding clutch-cone B and controlling the traverse of the tools by means of levers P, Y, and links N, W, connected to the tool holders. The initial operation of the tools is effected by sliding pieces J, S and spring-pressed connections K, L, and T, U. The upward travel of the tool G is effected by the sliding piece I and lever Q acting on the spindle R, of the toolholder.
Patent GB-1335272-A (GB)
Title: Shrink fit assembly process
IPC: B23P11/02
Filed: 1971-05-27
Abstract: 1335272 Assembling shrink fits ITT INDUSTRIES Inc 27 May 1971 [15 June 1970] 17490/71 Heading B3V Refrigerated parts are assembled together in a dry atmosphere to prevent condensation and freezing of any moisture. The invention is described with reference to assembling valve seatings 11, which are stacked in a refrigerated chamber 14, into an engine head 26 in a further chamber 16. A dryer 30 maintains a flow of dry air, or other inert dried atmosphere, in both the assembly chamber 16 and the refrigerated chamber 14; the air escapes through an outlet 35. Alternatively the two chambers may be dried independently. In operation, hydraulic cylinder or solenoid 22 advances a transfer member 41 to remove the bottom one of a stack of refrigerated ( - 120 to - 150‹ F.) valve seatings 11. The seating then rests on a nylon anvil 42 which prevents rapid transfer of heat to the seating, and the latter is transferred to a position beneath the recess 28 in the engine block 26 into which it is pushed by an hydraulically operated piston 50 and rod 39. A steel plate covered with a layer of B.T.F.E. 19 supports the rest of the stack of valve seatings during the transfer.
Patent GB-634327-A (GB)
Title: Improvements in the manufacture of bags, envelopes and the like
IPC: B31B23/00
Filed: 1947-12-03
Abstract: 634,327. Making paper and like bags. BEASLEY, FRENCH & CO., Ltd., and FRENCH, G. W. Dec. 3, 1947, No. 17595. [Class 94 (ii)] Apparatus for making bags or envelopes from a web of sheet material that is folded into a flattened tube and fed along a former plate comprises means for effecting a stepped severance of the upper and lower layers of the tube to provide closure flaps, and means for making cuts at intervals in the folded edges of the tube to separate the upper and lower layers at those parts of the edges into which the severing cuts extend in order to prevent cracking thereat. As shown, rolls 2 draw a tube of sheet material over a former plate 3 and feed the tube to holding rolls 4. The former plate increases in thickness towards its free end and is correspondingly decreased in width. Stabilizing rolls 6 are located near said free end. A pair of rolls located between the draw and holding rolls is provided with cutters 7 adapted to make spaced rectangular notches in the edges of the tube. Immediately beyond the said free end is located a pair of rolls provided with blades 13 adapted to make transverse cuts in the upper and lower layers respectively of the tube, the upper cuts entering the trailing ends of the notches and lower cuts the leading ends. The cutting edges of the blades 13 are serrated and may be arranged to effect a cut which is either straight or curved, while said cut may be made progressively across the tube from side to side, or from the centre outwards, or from the edges inwardly. As an alternative arrangement rotary cutter blades may be arranged to act against the thickened edge of the former plate to form elongated slotted openings in the sides of the tube, the openings may be mere slits in the folded edge. Also the cutter blades 13 may be actuated through parallel link mechanism.
Patent GB-1062482-A (GB)
Title: High quality phthalic acids
IPC: B01J31/04
Filed: 1964-04-28
Abstract: A continuous process for the production of terephthalic acid, isophthalic acid or mixtures thereof by the once-through catalytic liquid phase oxidation of the corresponding xylene or mixtures of xylene with air or enriched air containing up to 50% by volume of oxygen in a single oxidation zone in presence of an acetic acid solution containing bromine ions and a heavy metal as the catalyst system, which comprises charging continuously to the oxidation zone the xylene, the acetic acid solution containing the catalyst system, and the air, the weight ratio of the acetic acid to xylene being in the range 1 : 1 to 10 : 1, the concentrations of total heavy metal and bromine each being 0.01 to 1.0 weight per cent based on the acetic acid, the ratio of air to xylene being 1.0% to 40% in excess over that required to provide the theoretical ratio of 3.0 moles of oxygen per mole of xylene, the reaction temperature of the liquid phase being 390 DEG  F. to 475 DEG  F. at a pressure of 300 to 500 p.s.i.g., the residence time of the xylene in the oxidation zone being 10 to 60 minutes; continuously withdrawing the resultant liquid phase reaction mixture at a rate regulated to provide the desired residence time and recovering the phthalic acid product.  The term "heavy metal" is defined and includes metals of atomic number up to 84, e.g. Mn, Co, Ni, Cr, V, Mo, W, Sn and Ce which may be used in admixture.  Sources of bromine are elemental bromine, bromides, bromates, tetrabromoethane, benzyl bromide and "heavy metal" bromides.  The bromine to metal atom ratio may vary from 10: 1 to 1: 7.  A preferred catalyst comprises 0.03 to 0.5% by weight of bromine and 0.03 to 0.5% by weight of Co and Mn together, based on the weight of acetic acid.