baber/WOPTO huggingface dataset:
Patent GB-244369-A (GB)
Title: A method for the manufacture of patterned or decorated articles from plastic masses
IPC: D06P1/00
Filed: 1925-08-08
Abstract: 244,369. Lauckner, K. Aug. 8, 1925. Processes.-Relates to the manufacture of articles such as handles or grips, door latches, plates, discs, insulators, markers, knobs, buttons, &c. with a coloured pattern or decoration from plastic masses such as powdered celluloid, artificial resins, horn, &c., and consists in first shaping the article under light pressure, then applying the coloured substance, and afterwards subjecting to a finishing pressure.
Patent GB-381619-A (GB)
Title: Improvements in furnaces
IPC: F23M5/08
Filed: 1931-07-14
Abstract: 381,619. Furnace walls and roofs. GREEN, H. J., 192, Greenmount Lanc, Heaton, Bolton. July 14, 1931, No. 20220. [Class 51 (i).] In a furnace wall or roof incorporating cooling water or steam tubes 1 between which are disposed refractory bricks or tiles 2 whose abutting faces are formed with serrations or holes to co-operate with complementary projections on retaining members 4 arranged between the bricks, the members 4 are formed in two parts each engaging with a separate brick. As shown in Figs. 1 and 3, the retainers 4, shaped to fit around two adjacent tubes 1, are made in two parts which are arranged backto-back, each part having serrations 3 engaging similar serrations in the abutting faces of two adjacent T-shaped filling bricks 2. Figs. 8 and 9 show a modified form of brick and retainer, each part of the latter being formed with pins 8 to engage in holes 9 in the end face of a brick. The retainers 4 terminate short of the inner faces of the bricks and are anchored, at their outer ends, to a fixed outer wall 28 by the engagement, in holes in the retainers, of hooks 11 secured to girders 12. The weight of the bricks and retainers may be taken, as shown in Fig. 3, by two-part metal clamps 22, firmly secured to two adjacent tubes 1 by bolts 23, or by a girder 24, Fig. 18, having teeth 25 projecting between the tubes 1 and secured to a beam 12 fixed along the foot of the wall. In the construction shown in Fig. 13, the retainers 4 are shaped to fit the tubes 1 at their inner ends only, the outwardly projecting tongues, in this case, passing through clamp members 14 each of which is forced into resilient gripping contact with two adjacent tubes by a cotter pin 16 and a spring 17. Fig. 20 shows a suspended roof construction in which the two-part retainers 4 are supported by hooks 11 secured to spaced bars 29, the latter being mounted on the main girders 12 so as to be slidable thereon.
Patent GB-614117-A (GB)
Title: Improvements in or relating to a kitchen tool and method of making the same
IPC: A47J43/22
Filed: 1946-07-08
Abstract: 614,117. Attaching handles in making sieves. EKCO PRODUCTS CO. July 8, 1946, No. 20293. Convention date, Feb. 23. [Classes 83 (ii) and 83 (iv)] Welding.-A method of making a kitchen utensil having a handle 13 and a wire-frame head 11, e.g. strainer, potato - masher, etc., comprises bending the frame ends 12 parallel and placing them in grooves 15 of similar section formed longitudinally of the handle shank 13 and resistance welding the ends 12 to current concentrating ribs 16 also of corresponding section formed in the grooves 15.
Patent GB-775969-A (GB)
Title: Thermoelectric generator
Inventor: FRITTS ROBERT WASHBURN
IPC: G01K7/06
Filed: 1954-07-12
Abstract: 775,969. Thermo-electric generators. MILWAUKEE GAS SPECIALTY CO. July 12, 1954, No. 20390/54. Class 53. A thermo-electric generator comprises a first thermo-electric element mounted in a cavity in a second such element, a rigid conductor extending through a rigid sealing means for the cavity, the expansion of the first element on heating being arranged to be at least equal to that of the second so that the first is not subjected to tensile stress. Fig. 2 shows a thermo-electric device comprising a cup-shaped element 10 of stainless steel or iron alloy containing the other element 11 composed for example of lead selenium and tellurium. The sealing arrangement comprises a brass collar 16 attached to element 10 and surrounded by a support and cooling means 21. A sleeve 17b is attached to collar 16 and sealed by a glass seal to sleeve 17a  which is attached to pin 14 connected to contact electrode 13 bonded or fused to element 11. Electrode 12 provides contact at the hot junction between elements 10 and 11. Pin 14 is connected via flexible connector 20 to lead 19b. The materials and dimension of elements 10 and 11 are chosen so that expansion conditions arising during use result in no tensile stress being applied to element 11. The cavity including element 11 may contain an inert gas. The arrangement may be assembled as described in Specification 775,968, which also gives details of a suitable composition for element 11. Specifications 501,410, 578,187, 765,884, 766,999 and 775,970 are referred to.
Patent GB-601267-A (GB)
Title: Devices for assisting the assembly of constructional members by means of nuts and bolts
IPC: F16B37/04
Filed: 1945-08-08
Abstract: 601,267. Anchor nuts. SOC. SECURIT'S E.D.L.C. Aug. 8, 1945, No. 20396. Convention date, Aug. 29, 1941. [Class 89 (i)] An anchor nut construction comprises a flexible strip with spaced holes in which the nuts are secured, with limited play, against rotation ; the nuts directly engaging the work on being tightened. Square or rectangular openings 2, Fig. 1, in an offset part of the strip 1 receive square nuts 4 with flanges 5. The nuts are retained in the holes by applied collars 6 of angular cross-section. The nuts may be of standard or self-locking type. The Specification as open to inspection under Sect. 91 describes a modification in which the nuts have flat-sided collars and are mounted in elongated holes in a strip, bent up with ribs 11, Fig. 10 (Cancelled), to restrain rotation, by flanging over an extension 9. This subjectmatter does not appear in the Specification as accepted.
Patent GB-389354-A (GB)
Title: Improvements in and relating to the production of cement
IPC: C04B7/42
Filed: 1932-07-19
Abstract: Iron silicate, or manganese silicate or both are added as correcting materials to cement raw materials to bring the iron or manganese oxide content in the finished clinker to between 2-6 per cent.  The cement may thus be burned at a lower temperature than if, e.g. iron oxide and quartz were used separately.  Such compounds may be slags such as from the acid Martin process, from puddling furnaces or natural silicates.
Patent GB-604147-A (GB)
Title: Apparatus for reading textile relief patterns and facilitating the reproduction thereof
IPC: D03C17/00
Filed: 1945-08-10
Abstract: 604,147. Pattern-reading mechanism for card punching machines. WOODS, C. P, Aug. 10, 1945, No. 20548. [Class 142(i)] Pattern-reading mechanism for a card punching machine comprises a series of rockable feelers 5 for traversing patterncarrying material 1 fed past them, there being a relative rocking as between the feelers that contact the pattern and those that do not, the relative lengths of the arms of each of the feelers enabling a magnified movement of each of the longer arms to be obtained from a pattern of which the rises or depressions are relatively small, being e.g. of the order of the thickness of a coat of varnish. Each feeler has a projection 5b for contacting the material 1, and is attached to the vertical arm of a spring mounting 37 the horizontal arm of which is attached to a support strip 38 which is adjustable vertically on a frame member 35. The material 1 is supported on a base 4 and. rollers 3 and is fed stepwise past the feelers 5 by sprockets 28 driven by ratchet mechanism, the feelers being held clear of the material while it is moving, by a member 79. The sprockets 28 engage side tapes 29 which carry weights 6, 7, the forwardly depending stretches of the tapes being connected to the forwardly. depending stretch of the material 1 which carries a weight 31 at its rear end, the weights 7, 31, together balancing the weight 6. The top edge 5c of each alternate feeler 5 is offset to form two rows of edges which are associated with two rows of vertically-movable index rods 46 through the eyes of which pass laterally-movable hook members 54 which are connected by cords 73 to the needles of the card punching machine. When a feeler engages the pattern, its top edge acts as a stop for the associated index rod 46 thereby raising the corresponding hook member 54 so that it is not actuated by the corresponding brander knife 55 when the latter is oscillated, and thus causes a hole to be punched in the card of the repeating machine. The member 79, ratchet mechanism, index rods 46, and brander knives 55 are all actuated in synchonism by cam means operated from a common driving shaft. In a modification, the feelers act as a make or break control for electrical or magnetic means for causing or controlling the punching of the cards.
Patent GB-892018-A (GB)
Title: Improvements in or relating to the machining of tubes and like workpieces
IPC: B23B5/16
Filed: 1958-06-26
Abstract: 892,018. Machine tool details; machining rods or tubes. CALOW, T., [trading as CALOW & CO., Th.]. June 26, 1958 [June 26, 1957], No. 20552/58. Classes 83 (2) and 83 (3). In a method of carrying out a number of operations on tubes &c., the tubes are moved pivotally about a vertical axis transverse to their longitudinal axes, and are moved along the vertical axis so that the ends of the tubes after each pivotal and vertical movement occupy positions which lie on a spiral path, and the operations are carried out in these positions. The top tube 2 in a stack is passed to position 2a on the top disc 1 of a number of coaxial rotatable discs, and is clamped on the disc to allow the ends to be milled by cutters 4, 5, which may be fed into the work, or if the work is carried by rollers on disc 1, the work may be fed in turn to cutters 4, 5. The tube is then allowed to drop through a slot in the top disc until it rests on the second disc, and is secured thereon. This disc is rotated to bring the work to position 2b, where the ends of the tube are chamfered by tools 6, 7. The tube then drops to the next disc and is moved to position 2c where end caps 8, 9 are fitted and a pressure medium is introduced in order to pressure test the tube. The tube is rotated on this disc, or on lower discs during the pressure testing, in order to allow the operations on the following tubes to be carried out. The end caps will eventually be removed, preferably at a position below position 2c, and the tube is passed to a lower disc and pivoted to position 2d, where threads are cut by machines 10, 11, and coup - lings may be screwed on to the ends of the tubes. Further positions 2e, 2f may be provided, and means associated with the lowest disc discharge the finished tube.
Patent GB-629145-A (GB)
Title: Rubber-like compositions
IPC: C08L25/10
Filed: 1947-07-30
Abstract: A rubber-like composition comprises an intimate mixture of a copolymer of butadiene and styrene with a condensation product of an aldehyde and a liquid cashew nut shell liquid polymer, the condensation product having been prepared in the presence of an alkaline catalyst and the ratio of condensation product to copolymer being preferably in the range of 5: 100 to 50: 100 by weight.  The cashew nut shell liquid used is preferably such as, when dissolved in an equal weight of xylene, gives a solution having a viscosity in the range 30-500 centipoises at 25 DEG  C., and the aldehyde is preferably formaldehyde, glyoxal or furfural. The ratio by weight of the aldehyde to the polymer of cashew nut shell liquid is preferably in the range 1 : 100 to 15 : 100 and the condensation products may be prepared by mixing the aldehyde into the liquid polymer in such a proportion, adding a small quantity of alkali, preferably ammonia, as catalyst, and then stirring; the mixture is then placed in shallow metal pans in an oven at 250-300 DEG  F. for 1-16 hours, when the condensation product is obtained.  Compounds which yield aldehydes, particularly paraformaldehyde, trioxymethylene, and hexamethylene tetramine, may be employed instead of aldehydes, hexamethylene tetramine being preferred as it can provide both the aldehyde and the ammonia catalyst.ALSO:A rubber-like composition comprises an intimate mixture of a copolymer of butadiene and styrene with a condensation product of an aldehyde and a liquid cashew nut shell liquid polymer, the condensation product having been prepared in the presence of an alkaline catalyst, and the ratio of condensation product to copolymer being preferably in the range of 5:100 to 5:100 by weight.  The cashew nut shell liquid used in preparing the condensation product is preferably such as, when dissolved in an equal weight of xylene, gives a solution having a viscosity in the range 30-500 centipoises at 25 DEG  C., and the aldehyde is preferably formaldehyde, glyoxal or furfural.
Patent GB-1338188-A (GB)
Title: Method of assembling a semiconductor device
IPC: H01L21/607
Filed: 1972-05-03
Abstract: 1338188 Lead frames for integrated circuits RCA CORPORATION 3 May 1972 [13 May 1971] 20562/72 Heading H1K The semi-conductor supprting pad 16 and at least the inner ends 20 of the leads 18 of a lead frame for an integrated circuit are non-coplanar. While the connector leads 30 are being bonded, e.g. ultra-sonically, to the lead ends 20 and to the semiconductor wafer the frame is mounted in a jig which forces the pad 16 and the lead ends 20 into coplanar relationship, but the frame returns to the non-coplanar configuration shown on release from the jig. The non-planar relation may be obtained by bending the struts holding the pad 16 and/or the leads 18. The completed assembly may be moulded in a polymeric plastics envelope.
Patent GB-1269046-A (GB)
Title: Improvements relating to multiplying circuit arrangements
Inventor: UDALL ANTHONY JOHN SHAWCROSS
IPC: B21D/
Filed: 1968-05-01
Abstract: 1,269,046. Multiplying circuits. EMI Ltd. 28 April, 1969 [1 May, 1968], No. 20609/68. Heading G4G. The time delay inherent in the smoothing circuit of a time-division analogue multiplying circuit is compensated by phase-shifters in the circuits of the input voltages. Ideally, the output should be z = xy, but a delay t in the smoothing circuit results in z=xy-zt. According to the invention, the inputs are so delayed that the circuit performs the operation defined by z+zt=(x+xt)(y+yt) whereby it is found, on expressing zt in terms of the other variables, that the new equation for z includes no first order terms in t. In the multiplier shown, analogue voltage x is applied from terminal 1 through phase-advance circuit 6, 7 to integrating circuit 8, 9. A constant voltage k is applied to terminals 4, 5 which are connected to the input of the integrator 8, 9, respectively, through a resistance 10 equal to the resistance 6 and through a resistance 11 of half the value of resistances 6 and 10. Thus, depending upon the state of switch 12, the rate of change of the output of the integrator 8, 9 is proportional either to k+x or k-x. This output feeds a trigger 13 designed to operate the switch 12 when the output rises to a certain upper threshold value and thereafter to operate it again when the output falls to a certain lower threshold value. It can be shown that the switchoperating signal is a rectangular pulse having a mark/space ratio of (k+x) : (k-x). A summing amplifier 17 is connected to terminals 2, 3, respectively, supplied with analogue voltages y and -y, these signals being advanced in phase by circuits 15, 16 and 18, 19, both having the same time constant as circuit 6, 7, the value of resistor 18 being half that of resistor 15. The signal -y is applied to the amplifier 17 through switch 14 actuated by the same signal as switch 12. The pulse input to the amplifier has an amplitude equal to y and a mark/space ratio equal to (k+x) : (k-x). This signal is smoothed by the capacitance 21 which produces a phase change of the same magnitude as the compensating capacitances 7, 16, 19. The smoothed signal represents the desired product xy.
Patent GB-1285419-A (GB)
Title: Improvements in or relating to apparatus for feeding sheets of paper
Inventor: SPIESS H
IPC: B65H29/68
Filed: 1971-04-19
Abstract: 1285419 Feeding and delivering heets H SPIESS 19 April 1971 [5 March 1970] 20651/71 Heading B8R In apparatus for feeding sheets in underlapping formation, a suction means, e.g. cups e or rollers, moved back and forth parallel to the direction of sheet advance in operation, lift and retard the trailing edge of each successive sheet fed from a conveyer means, e.g. belts C 1 , c 2 , so that the leading edge of the next sheet is moved below the raised edge. Sheets may be cut from a web at b and fed by relatively fast moving belts C 1 , C 2  until their leading edges reach an adjustably positioned roller/and an associated, relatively slowly moving belt g, which retard each sheet, pneumatically or mechanically controlled overhead suction cups or rollers simultaneously raising the trailing edge and keeping the sheet taut. An underlapping stream is thus formed and is transported by belts i to form a stack against an abutment k from which top sheets are separated by suction cups l, in a direction at right angles to the original sheet feed to rollers m on a feed table, and thence to a machine. Rails (r), Fig. 4 (not shown), underneath the belts i may be raised to bend and stiffen the sheets. The belts i may be mounted on a frame o movable to below the belt c 2  to allow sheets to be fed to the machine from a conventional pile table (w), Fig. 5 (not shown). Alternate ones of pairs of suction cups e may act on each sheet.
Patent GB-695170-A (GB)
Title: Method of purifying organic compounds
IPC: C07C51/487
Filed: 1951-09-03
Abstract: Carboxylic acids containing nitro-compounds as impurities are purified by treating them in alkaline solution with gaseous sulphur dioxide to reduce the nitro-compounds to water-soluble products.  The passing in of sulphur dioxide, which may be preceded by a preliminary purification of the crude carboxylic p  acid by means of water, ethyl alcohol or other solvent, may be effected at atmospheric pressure and elevated temperature, and may be continued until the solution becomes acid and the purified main product separates in a crystallized state, or it may be interrupted as soon as precipitation commences and the solution then acidified with a mineral acid to complete the precipitation. Examples describe the purification of: (1) benzoic acid containing 16 per cent of nitro-compounds; (2) terephthalic acid containing 7 per cent of nitro-compounds; (3) terephthalic acid containing 7 per cent of nitro-compounds and some toluic acid.
Patent GB-831831-A (GB)
Title: A process for activating phosphate dehydration catalysts, and a phosphate dehydration catalyst
IPC: B01J27/16
Filed: 1957-07-01
Abstract: Phosphate dehydration catalysts, e.g. boron, cadmium, magnesium or aluminium phosphate, are activated prior to use with gaseous ammonia; the catalyst so produced is characterized by the presence of primary ammonium phosphate crystallites of 2000-10,000   on the surface of the catalyst or incorporated between the catalyst elements.  These catalysts are used in the production of nitriles and dinitriles from the corresponding acid and ammonia or from the amide.  The phosphate catalyst is generally prepared by reacting the metal carbonate or boric acid with phosphoric acid and dehydrating the water-containing phosphate gel so formed at 20-200 DEG  C.; it is then heated in the presence of ammonia to calcining temperatures of 200-550 DEG  C. and calcined in ammonia.  Alternatively a previously calcined catalyst is activated in ammonia at 20-550 DEG  C. for 1-5 hours. The activity of the catalyst may be maintained by treating with small amounts of phosphoric acid during the dehydration reaction or during interruptions in the reaction.  If the acid is added continuously it can be fed separately to the evaporator or added to the feed to the process in amounts of 0.5-8%.ALSO:Nitriles and dinitriles, e.g. adiponitrile, acetonitrile or sebacic acid nitrile, are prepared from the corresponding acid and ammonia or from the acid amide in the presence of phosphate dehydration catalysts which have been activated by gaseous ammonia and which contain primary ammonium phosphate crystallites of size 2,000-10,000  .
Patent GB-388657-A (GB)
Title: Improvements in petroleum stoves
IPC: F24C5/04
Filed: 1932-07-23
Abstract: 388,657. Oil burners. LUDOLPHI & C. WIEDEMANN NACHFOLGER GES., A., 21, Jõgerstrasse, Wandsbek, Germany. July 23, 1932, No. 20796. Convention date, Feb. 24. [Class 75 (i).] A burner for a petroleum stove comprises a flame chamber assembly 18 including coaxial cylindro-conical perforated rings 20, 21 uprising from a trough 9 and surrounded by an imperforate cylindrical ring 19, a vertically guided member 27 depending from within the innermost ring and extending beneath the trough, bars 22, 23 connecting the rings with the depending member and a cam 30 adapted to engage the lower end of the depending member. The trough 9 contains an asbestos strip 8 and is supplied with liquid fuel from a storage container 3 by way of a valve controlled connection 4 to a smaller container 5 having an outlet pipe 7 leading to the trough. The supply is controlled by a cock 6 in the pipe 7 operated by a knob 11 connected with a pointer 13 moving over a graduated scale 12. To ignite the burner, the flame chamber assembly 18 is raised from the top of the trough by means of the cam 30 operated by a knob 29.
Patent GB-1202027-A (GB)
Title: Improvements in or relating to semiconductor devices of the surface barrier type
IPC: H01L29/86
Filed: 1969-04-23
Abstract: 1,202,027. Surface barrier devices. TRW SEMICONDUCTORS Inc. 23 April, 1969 [29 April, 1968], No. 20798/69. Heading H1K. In the manufacture of a surface barrier device the metal forming the surface barrier is chosen to have a higher eutectic temperature with the semi-conductor than has the metal forming an ohmic contact of the device; thus by heating the structure to a temperature intermediate these two eutectic temperatures the metal of the ohmic contact may be alloyed to the body while the surface barrier is left undisturbed. Silicon oxide passivated silicon diodes (including photo diodes) and transistors are described. Suitable metals for surface barrier formation with silicon are (grouped in preferred order):- Au, Cr, Sb, Sn, and Pt; Al and Ag; Zn, Pb, and Bi; Cu and Pd; In, Cd and Fe; Mg, Ni and Mn. Many of these metals if alloyed to silicon form ohmic contacts and may also be used in this way.
Patent GB-531328-A (GB)
Title: Improvements in or relating to apparatus for feeding cut tobacco
IPC: A24C5/39
Filed: 1939-07-18
Abstract: 531,328. Feeding cut tobacco. MOLINS, D. W., RUAU, F. F., and MOLINS MACHINE CO., Ltd. July 18, 1939, No. 20847. Drawings to Specification. [Class 130] In apparatus for feeding cut tobacco in which the tobacco is carried by an endless carded conveyer or roller, a receptacle for shorts has a multi-apertured bottom arranged above the teeth of the conveyor and is mounted for movement transversely of the conveyer so that shorts passing through the apertures are distributed over the surface of the conveyer. The apparatus is that described in Specification 531,327 with reference to Figs. 1 to 3. The tobacco on the conveyer, before being moved beneath the receptacle, may be trimmed by a separating device as described in Specification 520,178. Specifications 385,210, 394,809 and 446,701 also are referred to.