baber/WOPTO huggingface dataset:
Patent GB-519593-A (GB)
Title: Improvements in and relating to tubes for heat-exchange apparatus
IPC: F28F1/00
Filed: 1938-09-27
Abstract: 519,593. Tubes for heat exchangers. KIRKE, P. St. G. Sept. 27, 1938, Nos. 28090/38, 31195/38, 32919/38 and 1543/39. Drawings to Specification. [Classes 64 (iii) and 123 (ii)] [Also in Group XXII] Sinuous tubes as described in Specifications 388,227 and 400,252 are of hexagonal cross-section and may have their ends enlarged to be of elongated hexagonal cross-section such that its projection along the tube would form a boundary enclosing the whole of the rest of the tube. Specifications 400,226 and 438,112, [both in Group XXII], also are referred to in the Provisional Specifications.
Patent GB-652876-A (GB)
Title: Machine for turning dowel rods
IPC: B27M3/28
Filed: 1947-10-21
Abstract: 652,876. Wood, trenching. NEILSON, A. Oct. 21, 1947. No. 28092. Drawings to Specification. [Class 145(i)] [Also in Group XXII] At the delivery end of a machine for turning wooden dowel rods (see Group XXII), the rod passes between a pair of horizontal rollers having sharpened rims or flanges so as to cut longitudinal grooves on diametrically-opposite sides of the rod.
Patent GB-408327-A (GB)
Title: Improvements in or relating to triangular prism shaped containers or tins
IPC: B65D81/20
Filed: 1932-10-08
Abstract: 408,327. Tins. SWIFT & CO., Union Stock Yards, Chicago, U.S.A.-(Assignees of Flanagan, C. A. ; 1703, West 80th Street, Chicago, U.S.A.) Oct. 8, 1932, No. 28104. Convention date, Jan. 30. [Class 66.] A container for meat and other products consists of a substantially triangular bottom and cover 3 and flat sides 4 which can collapse against the contents when the tin is exhausted. The sides may be connected by rounded corners 7. A dished shield 12 under the cover and preferably carried thereby protects one or more openings in the cover which allow escape of steam and air during the cooking of the meat &c. in the tin and the subsequent cooling and exhaustion.
Patent GB-866458-A (GB)
Title: Milling machines for profiling and/or engraving
IPC: B44B3/00
Filed: 1958-09-02
Abstract: 866,458. Copy - milling. GAUTHIER G.m.b.H., A. Sept. 2, 1958 [Sept. 11, 1957], No. 28207/58. Class 83 (3). A profile milling or engraving machine comprises at least one control template 14 traversed by an abutment 17 which may be returned along the template by a rapid drive 76, 77, engaged automatically, and means 63, 64 operated automatically for holding the template away from the abutment during rapid returns of the abutment. As applied to the machine described in Specification 867,799, shaft 20 for traversing abutment-slide 18 is normally rotated through an electro-magnetic clutch 75 by a reversing electric motor (not shown). At the top of its traverse, abutment 17 contacts the highest rise 14a on template 14, thus turning this on its pivot 13 against the influence of a spring 15 to allow the rocking catch 63 to engage beneath adjustable abutment 64 on the template holder 11. The catch is on a pivot 67 having an arm 68 rocked by a spring 69 against a stop 70 to engage the catch, which retains the template 14 in withdrawn position during return of the slide 18 by the electric motor 76, driving through a chain 77 and sprockets 78, 79. Motor 76 is energized and the normal motor and clutch 75 de-energized by a switch 62 operated by a rod 61 on slide 18. At the end of the fast return stroke, a switch 74 operated by the rod 61 deenergizes motor 76 and conditions the circuit for the next upward traverse, started by operation of a control switch. A screw 73 on the slide 18 rocks catch 63 into the disengaged position by engaging a lever 72 on pivot 67, allowing the template 14 to return to abutment 17. Instead of an idle return stroke of slide 18, during the return stroke a further workpiece may be machined, the working sequence being in opposite sense. In this case, the normal traversing motor is run in reverse, and an electromagnet 88 acting on pivot 67 holds catch 63 in the inoperative position so that the template remains in engagement with abutment 17. Automatic means for supplying and removing work may be provided. A control circuit including relay switches and a switch selecting between working and rapid returns of abutment 17 is described.
Patent GB-973589-A (GB)
Title: Recovery of alkali metal salts of benzenecarboxylic acids
Inventor: SCHENK WALTER
IPC: C07C51/42
Filed: 1962-07-23
Abstract: Dry neutral alkali metal benzenecarboxylates, which may be thermally converted into other alkali metal benzenecarboxylates, are recovered from their aqueous solutions by adjusting the latter to a pH 0.05-0.9 unit above the point of equivalence by addition of alkali metal hydroxide and dividing the solutions thus obtained into two streams, of which one is led into a conventional evaporator and the other is sprayed into a wash tower through which a CO2-containing gas passes in countercurrent.  The sodium and potassium salts of benzoic, phthalic and isophthalic acids are specifically mentioned as recoverable salts. Specification 840,040 and U.S.A. Specification 2,930,813 are referred to.
Patent GB-464115-A (GB)
Title: Improvements in the manufacture and production of olefines from gaseous or vaporous saturated hydrocarbons
IPC: C07C4/02
Filed: 1935-10-14
Abstract: In the production of olefines from gaseous or vaporous saturated hydrocarbons other than methane by treating the preheated hydrocarbons with oxygen, the latter when it meets the hydrocarbons is at once so much diluted that flame formation or local overheating is avoided while a reaction temperature above about 700 DEG  C. is produced.  The dilution may be effected by rapid admixture, e.g. by introducing the hydrocarbons and, if desired, the oxygen into the reaction vessel with a high speed of flow, by formation of eddies using deflecting bodies, tangential introduction of gases, supplying the gases through nozzles or porous walls, or by addition of vapours or gases such as steam or CO2.  The hot gases may also be mixed at reduced pressure, the fall in pressure being used to give a high speed of flow. When mixing preheated propane having a speed of flow of 7m./sec. with preheated oxygen, flame formation occurs at a mixing temperature of about 720 DEG  C.  With a speed of 17--18m./sec. and pressure of 400 mm. no local overheating occurs at 750 DEG  C.  The preheating is preferably effected in metal apparatus, while the reaction vessels are of non-metallic materials, e.g. clay, quartz, or chamotte.  In examples: (1) into a current of propane at 650 DEG  C. and 400 mm. cold oxygen is introduced tangentially through a capillary tube.  A temperature of 880 DEG  C. is attained, olefines and methane being formed with other decomposition products; (2) propane and oxygen at 700 DEG  C. and 400 mm. are brought to a speed of 20 m./sec. at the place of mixing by capillary restriction of the feed tubes.  The mixture flows through a widened quartz tube charged with pieces of quartz, a temperature of 870 DEG  C. being attained; (3) ethane and oxygen preheated to 700 DEG  C. in the apparatus of (2) react to give ethylene, 920 DEG  C. being reached.
Patent GB-1395632-A (GB)
Title: Arc welding studs
IPC: B23K9/20
Filed: 1972-06-16
Abstract: 1395632 Arc welding stud I SUEMATSU 16 June 1972 [5 Aug 1971] 28368/72 Heading B3R An arc welding stud comprises a body 1 which may be threaded, Fig. 1, ar plain, Fig. 4, the welding end surface of which is provided with a plurality of projections made of a heat-fusible electrically-conducting material. One projection 2 is located at the centre and the other projections 3, 3<SP>1</SP>, 3<SP>11</SP> ... being radially and symmetrically located about and respectively attached to the centre projection (see Figs. 2 and 5).
Patent GB-457229-A (GB)
Title: Improvements relating to the frames of vehicle and other seats
IPC: B60N2/68
Filed: 1935-10-16
Abstract: 457,229. Securing upholstery in position. SLEIGH, H. L., and CHESTON, A. S., Widney Works, Bagot Street, Birmingham. Oct. 16, 1935, No. 28520. [Class 52 (iv)] A seat back frame is made of strip metal having an inwardly directed channel 2, one flange of which has an external hollow beading 3 containing a tacking. strip 5.
Patent GB-395548-A (GB)
Title: Apparatus for the preparation and quick filtration of infusions and especially coffee
IPC: A47J31/20
Filed: 1932-10-13
Abstract: 395,548. Coffee-pots. CALIMANI, A., 34, Via Piolti de Bianchi, and MONETA, G., 20, Via S. Vincenzo, both in Milan, Italy. Oct. 13, 1932, No. 28657. [Class 129.] A coffee-pot in which the grounds are pressed to the bottom of the pot by a porous plunger member C has the latter provided with a deformable luting member 15 to prevent escape of grounds between the plunger and the wall of the pot.
Patent GB-1470255-A (GB)
Title: Valve combination for flame photometers
IPC: G01N21/72
Filed: 1974-06-28
Abstract: 1470255 Valves CARL ZEISS JENA VEB 28 June 1974 [9 July 1973] 28788/74 Heading F2V In a valve for controlling the flow of gas to the burner of a flame photometer, two different fuel gases, e.g. acetylene and propane, are connected respectively to inlets 10, 11 of a switching valve 3 the outlet 13 of which forms the inlet of a safety valve controlling flow of the selected fuel gas to an outlet 17 connected to the burner. The valve as a whole is constructed with a minimum of dead space so that on changing from one fuel gas to the other there is a minimum time delay before the newly selected gas reaches the burner. The switching valve 3 comprises a manually operated rotary tapered plug with a cut away portion 12 and the safety valve comprises a plunger 15 the head 16 of which controls the opening 13 between the chambers of the two valves. The safety valve is controlled by a bellows 23 pressurized by compressed air fed to the burner. The switching valve may be modified to control more than two fuel gases.
Patent GB-670888-A (GB)
Title: Improvements in wing spats for automobiles
IPC: B62D25/18
Filed: 1949-11-10
Abstract: 670,888. Mudguards. PARK WARD & CO., Ltd., and WARD, C. W. Oct. 26, 1950 [Nov. 10, 1949], No. 28856/49. Class 136 (i). An automobile wing spat C is connected to the chassis by a link system D, D<SP>1</SP> permitting the spat to be brought flush with the surface of the wing A or to be swung rearwardly and outwardly to afford access to the wheel. A lock is provided in the form of a cam N which is rotatable in a plate M mounted on the inner face C<SP>1</SP> of the spat and operated by a key passing through a hole O in the spat. A series of angularly disposed dovetail bolts P, P<SP>1</SP>, P<SP>2</SP> co-operate with the cam N and are guided in brackets Q secured on the inner face of the spat and provided with openings R to receive spigots S mounted in the inner surface L of the wing. The spigots are formed with recesses to receive the bolts P, P<SP>1</SP>, P<SP>2</SP>.
Patent GB-603122-A (GB)
Title: Machine for coiling wire on concrete and other tubes
IPC: B65H59/10
Filed: 1945-10-31
Abstract: 603,122. Armouring tubes. SOC. CONTINENTALE ET COLONIALE DE CONSTRUCTION SOC. ANON. Oct. 31, 1945, No. 28914. Convention date, May 16, 1941. [Class 83 (iv)] In a machine, for armouring tubes, with a hydraulic device for tensioning the wire, an electromotor M rotates a differential mechanism 2 actuating oil pumps 5, 6 supplying constant pressure liquid to a braking-device 26, 27, a tensioning-device 17 and an adjustable relief valve 29. The unwinding reels 9 are rotated from the shaft of the pump 6. Cocks 15, 16  are adjusted to vary the speeds of the pumps 5, 6. In operation, variation of speed of the tube 35 causes movement of a tensioning roll 34 of the device 17 and variation of pressure in a pipe 19 controlled by the valve 29 without affecting the speeds of the tube 35 or the reels 9.
Patent GB-433832-A (GB)
Title: Process and apparatus for the production of flat bags
IPC: B31B23/00
Filed: 1934-10-09
Abstract: 433,832. Making paper bags. ATELIERS DE CONSTRUCTIONS MECANIQUES C. & A. HOLWEG, and FREYSZ, C., 42, Rue Jacques KablÚ, Strasbourg, Bas-Rhin, France. Oct. 9, 1934, No. 28915. [Class 94 (ii)] A process for making paper bags from a continuously moving paper web which is formed into a tube at 1 and which is divided up into pieces of even length by tearing along lines of perforation, is characterized in that the tearing apart of said pieces is effected by the bottom-folding device 7, which comprises a rotary gripping device and a co-operating rotary knife. The perforations may be effected either after the tube is formed, by rolls 4, 5 operating through a comb-like portion 3 of the former plate 2, or before the tube is formed by a device 13, 14 co-operating with the counter roll of the adhesive applying wheel 11. A fillet 10 may be fitted near the knife of the bottom folding device to relieve the same, the fillet gripping the tube end by pressing it against the roll below it. The draw rolls 6 may be adjusted to take varied bag lengths.
Patent GB-808363-A (GB)
Title: Improvements relating to the storage of methyl isopropenyl ketone
IPC: C07C45/85
Filed: 1955-10-11
Abstract: Methyl isopropenyl ketone is stored by a method comprising converting the ketone into its cyclic dimer substantially free from polymer by heating it in the presence of a polymerization inhibitor and/or in the absence of oxygen, keeping the cyclic dimer as long as is desired and then reconverting the dimer into methyl isopropenyl ketone by heating it in the vapour phase.  The dimerization may be effected at at least 50 DEG  C., preferably in the presence of copper having an extended surface area. Polymerization may be avoided by utilizing about 10-200 p.p.m. of a polymerization inhibitor such as hydroquinone, thio diphenyl amine or sulphur or by excluding oxygen by working under a blanket of inert gas.  The dimer is preferably stored in the pure state; if some monomer is present then to prevent its polymerization a polymerization inhibitor may be added or oxygen may be excluded by storing the dimer under an inert gas.  The dimer is preferably converted to methyl isopropenyl ketone at a temperature of at least 375 DEG  C. in the absence of a catalyst, advantageously in admixture with 2-200 times its volume of an inert diluent, e.g. steam or nitrogen, and at a space velocity between about 20 and 100 reciprocal hours.  In examples: (1) methyl isopropenyl ketone containing some hydroquinone was boiled under reflux in the presence of copper turnings; the resulting dimer was stored for several months and then vaporized, heated to 400 DEG  C., diluted with nitrogen and passed through an unpacked reactor at 448 DEG  C. and the resulting methyl isopropenyl ketone recovered substantially polymer and dimer free by condensation; reference is made to dimerization as above but in the absence of the copper; (2) the dimer prepared as in (1) was decomposed at 490-510 DEG  C. in admixture with steam.
Patent GB-1339354-A (GB)
Title: Triazine compounds and pigment compositions embodying same
IPC: C09K/
Filed: 1971-06-21
Abstract: 1339354 Fluorescent polymer compositions LAWTER CHEMICALS Inc 21 June 1971 [23 June 1970] 28956/71 Headings C3P and C3R [Also in Division C2] A fluorescent aminoplast composition is prepared by mixing a fluorescent dyestuff with a resinous base formed by the co-condensation of an aryl sulphonamide an aldehyde and a triazine of the formula wherein R is dimethylene or trimethylene. The composition may be admixed with a polyacrylic resin to form a lacquer (see Example 3) or with butyl carbinol acetate or a varnish to form an ink (see Example 6).
Patent GB-278908-A (GB)
Title: Improvements in appliances for playing indoor board games
IPC: A63F3/00
Filed: 1926-11-17
Abstract: 278,908. Simister, W. H. Nov. 17, 1926. Board games.-Appliances for playing a game simulating football comprise a square board, Fig. 1, the surface of which is divided into eighty-one squares, and two differently coloured sets of pieces, each piece, Fig. 2, being upstanding in form and provided at the base H with a recess H<1> to carry a ball. At the commencement of a game the pieces are arranged according to markings C on the board, after which the players move their pieces alternately with the object of carrying the ball through the opposing goal.
Patent GB-1464625-A (GB)
Title: Method of and apparatus for producing a textural layout or  master copy photogrpahically
IPC: G03F1/00
Filed: 1974-07-01
Abstract: 1464625 Projection printing H R EWERT 1 July 1974 [29 June 1973] 29168/74 Heading G2A  Part images, e.g. alphanumeric characters, are projected in succession on to stationary photosensitive material 4, using a pulsing light source 2, through a superimposed layer of transparent phototropic material 6, for alignment and checking purposes. Each part image is aligned, by movement of original or photo-sensitive and phototropic materials, using week illumination, after which full strength exposure illumination is employed, darkening of the phototropic material preventing overexposure of the photo-sensitive material. Removal of the temporary image may be quickened by infrared radiator. As shown, an assembly of phototropic material 6 and glass 7 is swung out of operative position, in contact with the photosensitive material, for replacement thereof. An assembly of glass, phototropic layer and partially translucent mirror layer may be maintained in position above reel-to-reel photo-sensitive material Fig. 3 (not shown). The photo-sensitive and phototropic material may be arranged in a cassette Fig. 4 (not shown).
Patent GB-976369-A (GB)
Title: Manufacture of articles from thermoplastic polymeric materials
Inventor: GROOS BASTIAAN
IPC: B29C45/12
Filed: 1962-07-30
Abstract: 976,369. Injection moulding. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. July 30, 1962, No. 29188/62. Heading B5A. Large void-free thermoplastic articles are moulded by charging, in turn, each of a series of moulds and subsequently supplying further material thereto under pressure to compensate for shrinkage of the material during cooling. Material from, e.g. a screw extruder 1, is introduced by means of a two-way valve 3 and a passage 5 into a mould 13 and a secondary injection cylinder 9. When the mould has been sufficiently charged, as is indicated when the material exudes through air escape passage 15 and valve 17, the valve 17 is closed and the valve 3 is manipulated to divert the material through passage 6 into mould 14 and associated cylinder 10. After a suitable time lag, to initiate the cooling of the charged material, the cylinder 9 is manipulated to force more material into the mould after which the cooled article thus formed is removed from the mould. By this time the mould 14 has been sufficiently charged and the material is re-diverted, by the valve 3, back into mould 13 whilst further material is introduced from 10 into mould 14. By employing a multi-way valve several moulds on a suitable support, e.g. a rotary table, may be utilized in succession.
Patent GB-895102-A (GB)
Title: Improvements in or relating to travelling wave tubes
Inventor: STEPHENSON LAWRENCE MICHAEL
IPC: H01J23/24
Filed: 1958-09-11
Abstract: 895,102. Travelling-wave tubes. M-O. VALVE CO. Ltd. July 9, 1959 [Sept. 11, 1958], No. 29199/58. Class 39 (1). A travelling wave-tube incorporates a ladder-type periodic delay line, the rungs 11, Fig. 3, of which are concave towards the beam so as to take up thermal expansion away from the path of the beam, in association with an electrostatic focusing system such as described in Specification 856,117, in which the beam 20, Fig. 4, follows an undulatory path alternately approaching into and receding from the slots 14 in delay line 11. Any deviation of the beam from its desired path due to movement of a rung is automatically compensated for by a change in the electrostatic fields. Suitable dimensions are given.
Patent GB-455402-A (GB)
Title: Improvements in and relating to phase-sequence indicators
IPC: G01R29/18
Filed: 1935-10-23
Abstract: 455,402. Phase - sequence indicators. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Oct. 23, 1935, No. 29275. Convention date, Oct. 25, 1934. [Class 37] [See also Group XXXVII] A phase-sequence indicator comprises two glow discharge tubes (e.g. neon tubes) 12, 13 and a low power factor impedance, such as a condenser 11 connected in star, the arrangement being such that when connected to a three phase system one of the lamps alone will light if the phase sequence is in one sense and the other alone if the phase sequence is in the reverse sense. The impedance 11 may be constituted by a choke. Relays may be included in the circuits of one or both of the lamps to effect control in response to phase sequence. A switch may be provided for short circuiting the condenser and connecting both lamps in circuit in order to test them. The elements are mounted in a box having suitably labelled terminals and apertures through which the lamps may be observed. The Specification as open to inspection under Sect. 91 states also that incandescent lamps may be used instead of the glow-discharge tubes. This subject-matter does not appear in the Specification as accepted.
Patent GB-671079-A (GB)
Title: Improvements in or relating to solders
IPC: B23K35/26
Filed: 1949-11-16
Abstract: A tin alloy solder, particularly for soldering aluminium and aluminium alloys, has the following composition: Sn 69.9-98.9 per cent, Zn 1.0-30.0 per cent, Ce 0.1-5.0 per cent.  The alloy may also contain Al 0.1-5.0 per cent.  The cerium may be added as mischmetal.
Patent GB-427339-A (GB)
Title: Improvements in or relating to titanium compounds
IPC: C01G23/053
Filed: 1933-10-23
Abstract: The hydrolysis of solutions containing titanium is initiated or maintained by the addition of an organic acid-binding substance such as hexamethylene-tetramine, acetamide, or acetaldehyde ammonia, the acid-binding substance being preferably added to the solution at say 85 DEG  C. a short while before hydrolysis is effected by boiling. Acid-poor titanium-rich solutions such as are used in the process of the parent Specification may be employed, the amount of acid-binding substance being insufficient to cause any considerable decrease in the total acidity of the solution. Hydrolysis may take place in the presence of an extender such as an alkaline-earth metal sulphate, and the washed and dried precipitate be prepared for use as a pigment by calcination at say 875 DEG  C.  Calcination may be effected in the presence of neutralizing agents, sintering agents, phosphoric acid or phosphates, or sodium sulphate.
Patent GB-1195119-A (GB)
Title: Charge Density Meter.
IPC: G01R5/28
Filed: 1967-11-27
Abstract: 1,195,119. Measuring face charge density. STANDARD OIL CO. Nov.27, 1967 [Nov. 29, 1966], No.29418/69. Divided out of 1, 195, 118. Heading G1U. The disclosure is substantially the same as that in Speficication 1, 195, 118 but the claims relate to apparatus wherein the output of the charge induction plate is gated by a reference signal, produced in dependence on whether the plate is being shielded or exposed, before being fed to a meter for producing a resultant signal proportional to net space charge density.