baber/WOPTO huggingface dataset:
Patent GB-701995-A (GB)
Title: Machine for roughening leather and plastic materials
IPC: C14B1/48
Filed: 1951-05-07
Abstract: 701,995. Roughening leather &c. TOUBLANC, E. May 7, 1951 [May 12, 1950], No. 10630/51. Class 31, (1) A machine for roughening leather, rubber, and plastic materials, e.g. soles and insoles for footwear,. comprises a pair of blades 10 which project through a narrow slot in a table 22 supporting the material to be roughened and are vibrated horizontally in opposite directions, the material being fed transversely of the blades by means of two rotatable cylinders 26 and being pressed against the cylinders and the blades by means of three cylinders 27 connected to each. other by means of rubber belts 37. The blades are each formed with triangular-shaped grooves the ends of which are bevelled with respect to the upper face of the blade. The blades are vibrated by being' secured to supporting members 13 which are each mounted on spring blades 18 connected to a vertically-adjustable stand 19, the members 13 each terminating in an axle 14 carrying a roller 15 which is spring-pressed into engagement with a cam shaft 16 rotatable in an oil bath 28. The table 22 and cylinders 27 are supported in a frame 6 pivoted to a frame 8. A grinder for re-sharpening the blades when they become worn is located at the end of the driving shaft. When it is desired to roughen the heel portion of a'sole, the sole 34 is placed on a carriage 30 mounted on rollers 31 movable on rails associated with a platform 32 which may be rotated about an axle 35. The blades may consist of needles mounted on a metal base. In a modification, the blades are replaced by endless chains movable in opposite directions and provided with roughening devices.
Patent GB-106615-A (GB)
IPC: F23D99/00
Abstract: 106,615. A.C.M.E. Ateliers de Constructions Mecaniques de Lausanne, J. Lieber. May 16, 1916, [Convention date]. Addition to 25058/13. Supporting; re-igniting burners, heat-storing devices for.-A portable apparatus for heating, welding and hard soldering metal articles comprises a liquid fuel container 1 combined with a standard 7 in which slides a bar 9 carrying a burner-supporting arm 4, which is movable along, and rotatable on, its own axis and may be swung in the horizontal and vertical planes. The reservoir, which has a handle 2. is secured to the standard by clips. A sleeve 10, having a fixing-screw 11 and a clamp 14 tightened by a screw 12, detachably secures the arm 4 to the bar 9. The Specification as open to inspection under Sect. 91 (3) (a) also describes a spray burner, Fig. 7 (cancelled), provided with a shell 34 lined with fused quartz 38 or other material which rapidly becomes incandescent. In a modification double concentric metal shells with an interposed layer of insulating-material are employed. This subject-matter does not appear in the Specification as accepted.
Patent GB-106785-A (GB)
IPC: A46B9/06
Abstract: 106,785. Hansen, H. Dec. 8, 1916. Wire brushes.-A wire brush comprises a piece of carding or like cloth g mounted upon a spring backing d secured to a wooden stock a.
Patent GB-743677-A (GB)
Title: The production of an amino propanediol
Filed: 1953-04-20
Abstract: Erythro - 1 - p - nitrophenyl - 2 - amino - 1:3-propanediols (racemic or optically active) are manufactured by selectively reducing an erythrop-p-nitrophenylserine ethyl ester with 1.05 mols. or less of lithium aluminium hydride per mol. of starting material, in an anhydrous ether medium, decomposing the resulting complex with water, filtering, treating the residue with dilute mineral acid, extracting with ethyl acetate to remove any resin, rendering the solution alkaline and then extracting the product with ethyl acetate. Examples describe the preparation of the DL, D(-) and L(+) isomers, using in the first case rather more than 1 mol. and in the other two cases rather under 0.6 mol. of LiAlH4 per mol. of ester, and working in a nitrogen atmosphere.  The D(-) isomer yields chloramphenicol by epimerization according to Specification 671,531 followed by dichloracetylation according to Specification 699,575. Specifications 697,697 and 715,876 also are referred to.
Patent GB-417728-A (GB)
Title: Improvements in and relating to the manufacture of rubber tubing, sheathing and the like
IPC: B29C70/68
Filed: 1933-04-11
Abstract: Rubber tubing, sheathing for electric cables &c. are built up of rubber strip or tape coated on one side with an adhesive spread of rubber and sulphur and on the other with an ultra-accelerator, such as piperidine pentamethylene dithiocarbamate, tetramethyl or tetraethyl thiuram disulphide, or zinc isopropyl xanthate.  The ultra-accelerator may be dusted or deposited from solution on to the surface of the tape, or may be mixed with an adhesive rubber spread containing no sulphur, or the strip may have a vulcanizable spread on both faces.  A suitable composition for the tape is rubber 35 per cent, bitumen 5 per cent, china clay 25 per cent, French chalk 10 per cent, zinc oxide 5 per cent, carbon black 17 1/2 per cent and sulphur 2 1/2 per cent and for the adhesive spread, rubber 97 per cent and sulphur 3 per cent.
Patent GB-899680-A (GB)
Title: Improvements in or relating to magnetic recording powders
IPC: G11B5/706
Filed: 1959-03-31
Abstract: A magnetic recording powder is prepared by co-precipitating cobalt and iron hydroxides from an alkaline medium, heating the resultant precipitate in its mother liquor to convert it to a crystalline precipitate, preferably by heating under pressure to a temperature of at least 100 DEG C., especially 130 DEG C.-170 DEG C., separating the crystals, and heating them in a reducing atmosphere, preferably at 350 DEG C.-400 DEG C. for example in an atmosphere of hydrogen, carbon monixide, or city gas.  The product may then be reoxidized by heating, for example to 200 DEG C. to 550 DEG C. in air.  The mol. ratio of cobalt oxide to ferric oxide in the product is preferably not greater than 1:1 and especially from 0,2% to 3%.
Patent GB-542489-A (GB)
Title: Improvements in or relating to the cleaning of fluid heaters by elastic cleaning fluid and to cleaners for fluid heaters
IPC: F28G15/00
Filed: 1940-06-27
Abstract: 542,489. Nozzles. BABCOCK & WILCOX, Ltd., and DAVY, C. H. June 27, 1940, No. 10946. [Class 69 (iii)] [Also in Group XXII] A nozzle for spraying cleaning fluid on fluid heating apparatus comprises a head 10 having staggered divergent walled orifices 1 ... 4 to give differently directed jets that together cover the required angle and the areas of the throat of the orifices vary in the same sense as the distances through which the orifices are required to discharge. The walls of each orifice make an angle of approximately 6 degrees with its axis and the throat areas lie between a quarter and a half a square inch. The nozzle may be cast in a mould including a metal core with removable tapering inserts for defining the divergent parts 13 of the orifice while convergent parts 12 are formed by chamfering the inner ends after the inserts have been withdrawn. Another method comprises forming the nozzle of a plurality of parts arranged to fit together, notching the edges of the parts to form orifice walls and then assembling the parts and securing them together.
Patent GB-1131209-A (GB)
Title: Analogue to digital converter
IPC: H03M1/00
Filed: 1967-03-09
Abstract: 1,131,209. Analogue-to-digital converters. INTERNATIONAL BUSINESS MACHINES CORP. 9 March, 1967 [10 March, 1966], No. 11044/67. Addition to 1,082,610. Heading G4H. An analogue-to-digital converter comprises a comparator 10 having two inputs, the unknown signal at 5 being connected via a summing junction 9, to an input of the comparator, a first digital-to-analogue converter 6 connected to the other input of the comparator, and a second digital-to-analogue converter 7 connected to the summing junction, the first converter being operated until the unknown signal is substantially matched, the second converter then being operated until the inputs to the comparator are precisely equal. A precision power supply 11 is connected to the two converters 6, 7. Each converter comprises a number of bi-stable stages D13, D12 &c. controlling switches S13, S12 &c. in the legs of resistor networks 16, 17. The bi-stable stages are operated in turn by logic circuit 8 under the control of the comparator output. The first digit indicates the sign of the signal, and if the input is positive switch S14 operates to apply - 5v to the summing junction so that this input to the comparator will always be negative. The switch S13 is then operated applying - 2À5v to the other comparator input. If this is greater than the signal at the junction 9 switch S13 is reset and switch S12 operates to add - 1À25v. The process continues for eight steps. Switch S6D is operated but not reset, the value added being such as to ensure that the signal at the reference junction 23 is more negative than the signal at the summing junction. Switch S6B is set at the same time as switch S6D, but is reset if the amount added is too much. Successive switches S5-S0 are operated in turn until the inputs to the comparator are equal. The outputs from the two groups of bi-stable stages 14, 15 are applied to computer 21 where the digits of the lower group 15 are subtracted from those of the higher group 14. In the case of positive inputs at 5, since the value actually digitized is the difference between the input value and 5v the digital equivalent is the 2's complement of the value calculated by the computer. For negative inputs the sign switch S14 is not operated, and the true value is digitized. The output of the computer is the true equivalent in binary scale.
Patent GB-491838-A (GB)
Title: Improvements in apparatus for generating foam
IPC: B01F5/04
Filed: 1938-04-11
Abstract: 491,838. Making foam. KOMET KOMPAGNIE FUR OPTIK MECHANIK UND ELEKTRO-TECHNIK GES. April 11, 1938, No. 11095. Convention. date, April 10, 1937. [Class 47 (ii)] In an apparatus for making air foam of the kind comprising a tube 1 and two or more inclined jet nozzles 3 which deliver jets of liquid that intersect on the axis of the tube and entrain air, the outlets of the nozzles lie close to the axis of the tube or actually merge into one another, so that the jets of liquid intersect immediately at or close to the outlets of the nozzles. The nozzles are formed as bores in a plug member 2 and are controlled by a rotary disc valve 9 operated by a ring 11 and handle 12. Air is drawn into the tube 1 through ports 4, and a funnel-shaped member 5 is arranged within the tube to form an annular air passage 6 about the nozzles. An additional supply of air is drawn in through ports 8, 7. Specifications 403,291 and 424,995 are referred to.
Patent GB-527460-A (GB)
Title: Improvements in chassis frames for rear engined vehicles
IPC: B62D21/00
Filed: 1939-04-13
Abstract: 527,460. Motor vehicle frames. ZAVODY RINGHOFFER-TATRA AKCIOVA SPOLECNOST. April 13, 1939, No. 11151. Convention date, June 14, 1938. [Classes 79 (iii) and 79 (iv)] A chassis frame for a rear engined motor vehicle comprises a central longitudinal main member 1 with a forked end 2 bridged by a crosspiece 3 from which extend arms 4, 5, the engine being resiliently or otherwise mounted on the arms 4, with the change speed and transmission mechanism separately mounted on the arms 5.
Patent GB-709599-A (GB)
Title: Improvements in spinnerets for extruding artificial filamentary materials
IPC: D01D4/02
Filed: 1952-05-02
Abstract: <PICT:0709599/IV (a)/1> A spinneret has at least 150 spinning orifices arranged in radial rows of at least two kinds, the rows of one kind, 17, extending from close to the centre to close to the periphery of the face, and the innermost orifices of a second kind 18, being at a common distance from the centre and spaced further therefrom than the innermost orifices of the first kind, each pair of adjacent rows of the first kind being separated by a plurality of other rows including at least one row of the second kind.  There may be more than 5,000 orifices and a third kind of row, 19, whose innermost orifices are spaced still further from the centre than those of the second kind, the rows being symmetrically disposed.  Two orifices 21 may be disposed in line with the rows 19 centrally between the rows 17 and nearer the centre than the innermost apertures of rows 18.
Patent GB-215754-A (GB)
IPC: C10B31/02
Filed: 1924-05-06
Abstract: 215,754. Koppers Coke Oven Co., Ltd., (Assignees of Koppers, H.). May 7, 1923, [Convention date]. Charging.-To prevent caking of the charge in the upper part of a vertical retort the fuel is fed through a tube d arranged in the. mouth of the retort and extending downwards to the zone of maximum temperature. The mouth of the retort is preferably enlarged, as shown, and the annular passage c between the tube d and the walls serves for the withdrawal of gas. Reference has been directed by the Comptroller to Specification 16497/03.
Patent GB-699516-A (GB)
Title: Improvements in or relating to lithographic offset printing presses
Inventor: KOELLNER WALTER
IPC: B41F3/30
Filed: 1950-05-06
Abstract: 699,516. Cylinder printing machines. HUNTERPENROSE, Ltd. May 4, 1951 [May 6, 1950], No. 11293/50. Class 100(ii) A lithographic offset printing press in which an offset cylinder 4 is traversed over a stationary horizontal forme 2 and a platen 3 by a carriage comprising a pair of frames supported for movement by guide rollers located in channels on the machine, is characterized in that the frames house bearings for the impression cylinder and for damping rollers 14 and inking rollers the guide rollers being mounted on the frames at positions between the ends thereof and at intermediate positions. The offset cylinder is mounted in eccentric bearings in the frames for movement with relation to the forme so that the offset cylinder engages the forme during movement of the carriage in one direction only, the cylinder being moved by a link 26 supporting a guide roller 27 which runs in upper and lower guide tracks 28, 29. The guide track includes pivoted rail elements adjacent the ends of the track to permit movement of the guide roller from one track to the other. One pivoted element 34 is resiliently urged to a position at which it permits the guide roller to move along the lower of the guide tracks, the other element 40 being freely pivoted so that it is raised about its pivot by the guide roller to allow it to move out of the lower guide track to the upper track. To provide the forme with ink a third rail element 52 is provided and operated by a hand lever 41 to allow the offset cylinder to be clear of the forme and the platen on movement of the carriage in both directions. The carriage is traversed by means of an electric motor 15 driving pinions which engage in racks 16, the motor being reversed by a switch operated by the carriage at the end of its travel, spring operated buffers 22 being provided.
Patent GB-556769-A (GB)
Title: Improvements in or relating to high frequency amplifying tubes
IPC: H01J21/06
Filed: 1941-09-04
Abstract: 556,769. Electrodeposition of iron. PHILIPS LAMPS, Ltd. (Naamlooze Vennootschap Philips' Gloeilampenfabrieken.). Sept. 4, 1941, No. 11336. Drawings to Specification. [Class 41] [Also in Group XL]  A constantan wire, after degreasing, pickling in dilute hydrochloric acid, and washing in distilled water is coated electrolytically with iron in a bath comprising a boiled and filtered solution of FeCl 2 , CaCl 2 , and distilled water, a plate of pure iron being used as anode. Specifications 239,534, [Class 36], and 465,822, [Group XL], are referred to.
Patent GB-251103-A (GB)
Title: Improvements in automatic fire and temperature alarms
IPC: G08B17/04
Filed: 1925-05-01
Abstract: 251,103. Broom, J. F., and Hamley, J. May 1, 1925. Thermal switches; cases; contacts.-In a fire alarm of the expanding capsule type, an arm f carrying the movable contact f<1> is carried by a spring arm f<2> connected to one terminal of an electric circuit, and engages the capsule e with a pressure which is variable, by means of a spring h and screw i, to vary the temperature at which the alarm operates. The capsule is removably held in guides d in the alarm casing a, which may have a hinged lid. To provide for testing the alarm, a spring plungex k can force down the second contact arm j, or an electromagnet m in an auxiliary circuit may be arranged to raise the contact arm f, the latter being of soft iron. Alternatively, the arm j may be forced down by a bell-crank lever operated bv a cord. In a modification, the pressure of the arm f on the capsule is adjusted by the action on the spring h of a cam on a rotatable spindle. In another modification, Fig. 5, the casing a is rendered air-tight for use in explosive atmospheres. The capsule e is cemented over an opening in the casing. The pressure of the arm f on the capsule is adjusted by a cam n which is rotated by a ratchet o and spring-held pawl o<1> operated by an electromagnet p which may be repeatedly energized. An electromagnet m is used for testing the alarm.
Patent GB-693495-A (GB)
Title: Improvements relating to filters
Inventor: AUSTEN ALAN EWART WALTER
IPC: B01D29/05
Filed: 1950-05-08
Abstract: 693,495. Filters; filtering media. C. A. V., Ltd. April 17, 1951 [May 8. 1950]. No. 11351/50. Class 46 A filter is made from an obliquely corrugated, rippled or like paper sheet which is folded in opposite directions along a plurality of longitudinal parallel lines or comprises an equivalent assembly of separate sheets united at alternate edges, the folded sheet, or sheet assembly, being coiled to spiral form so that when mounted in an enclosure liquid flowing into the adjacent open ends of one group of spiral channels passes through the walls of the channels and flows out through the opposite open ends of the other group of channels. Fig. 3 shows a portion of such a sheet after folding along two longitudinal and parallel lines. The folded sheet b is subsequently coiled and accommodated in a container c, Fig. 6, having a closed top d, a bottom e with opening m, and a central tube f with opening n. Liquid entering a cylindrical bowl g, Fig. 7, from an inlet h enters the filter b at m and after filtration issues from the top of the filter b and passes through the opening n to the outlet i. The paper from which the filter is made may be strengthened by a porous coating of or impregnation of a synthetic resin. Alternatively crepe paper, Fig. 5, may be used.
Patent GB-527575-A (GB)
Title: Improvements in step-by-step lasting machines
IPC: A43D21/12
Filed: 1939-04-15
Abstract: 527,575. Lasting machines. WOLLNY, K. April 15, 1939, No. 11468. Convention date, June 21, 1938. [Class 17 (i)] In a step-by-step lasting machine, two springs are provided between the gripper closure device and its actuating lever, arranged that during the stretching or pulling of the upper both springs are operative, while during the overlaying of the upper margin, only the weaker spring is operative. Closure of the gripper is effected by a plunger 4 co-operating with a plunger 12 backed by a weak spring 13. The plunger 12 has a collar 'adapted on yield of the spring 13 to abut against a plunger 3 backed by a strong spring 5. The control cam has a step 15<SP>1</SP> adjustable on the main cam by slots and screws. In operation, during the upper-pulling, the plunger 4 is fully depressed and both springs are compressed. On the cam roll reaching the step 15', which occurs for the overlaying movement of the gripper, the plunger 4 is allowed to rise until the plunger 3 seats itself against its abutment, the weaker spring 13 then being alone in action to hold the gripper closed.
Patent GB-351137-A (GB)
Title: Improvements in or relating to synchronised motors
IPC: H04N5/04
Filed: 1930-04-11
Abstract: 351,137. Synchronous movements. COMPAGNIE POUR LA FABRICATION DES COMPTEURS ET MATERIEL D'USINES A GAZ, 12, Place des Etats Unis, Montrouge, Seine, France. April 11, 1930, No. 11580. Convention date, April 12, 1929. [Class 40 (iii).] In the synchronization of a motor by a braking action which is synchronous with alternating current received from a distant synchronizing machine and is so related to the rotation phase of the motor as to keep it in synchronism with the received currents, an electric braking is effected by absorbing a portion of the energy of the motor in a device with a periodically variable resistance. An armature i on the axle m<1> of the motor is connected in the plate circuit of a thermionic valve, the resistance of which is varied by applying the synchronizing current to the grid l. According to modifications, the armature moves in a field the intensity of which is a function of the synchronizing currents ; the synchronizing currents produce eddy currents in a perforated metallic disc, which may constitute a television scanning-device (Fig. 2, not shown).
Patent GB-343809-A (GB)
Title: Process for the manufacture of wrappings of wood wool and like materials
IPC: B65B21/24
Filed: 1930-04-11
Abstract: 343,809. Wood-wool &c. tubes. MERCK, W., MERCK, K., MERCK, L., MERCK, W., and MERCK, F., (trading as MERCK, E.), Darmstadt, Germany. April 11, 1930, No. 11581. Addition to 295,365, [Class 99 (ii), Pipes, tubes, &c.]. [Class 99 (ii).] The wound tube of wood-wool described in the parent Specification is completed by applying cold or warm size &c. to the tube, preferably in streaks from a longitudinally-movable container having an outlet of diameter equal to the desired width of the streaks.
Patent GB-406148-A (GB)
Title: Improvements in and relating to methods of and means for producing original sheets for reproduction by photo-lithography or other printing processes
IPC: B41B13/02
Filed: 1933-04-20
Abstract: 406,148. Printing. KARAFIAT, G. R., 28, Pernitz, Bez Wr. Neustadt, Austria. April 20,1933, No. 11587. [Class 100 (ii).] Hand-printing in successive characters ; types.- In the production of printed sheets, suitable for reproduction by photo-lithographic or other processes, by means of types successively applied by hand, the types are positioned by a stop which can slide on a universally adjustable ruler, the arrangement enabling inclined lines to be printed. The apparatus is particularly applicable for printing music or for filling in names on blank maps. In the apparatus shown in Fig. 1, a board 2, having a depression 3 for the sheet, carries a universally adjustable ruler 5 on which can slide a type-positioning stop. The ruler is formed with slots 17 receiving clamping-screws 6 provided with nuts which engage the undercut walls of channels 4. The types 16, Fig. 7, preferably consist of a steel block formed with a handle 14, and guide-faces 15, 16 for engaging the stop and ruler. For use in tracing musical ties or slurs, there is provided an additional ruler 11, Fig. 6, having a slidable curved part 13, and another curved part 12 which may be fixed or slidable.
Patent GB-870595-A (GB)
Title: Improvements in or relating to woven fencing panels and dike revetments
Inventor: WOUDENBERG ALBERTUS
IPC: E02B3/12
Filed: 1958-04-11
Abstract: 870,595. Fencing; wire fabrics. NEDERLANDEN, STAAT DER. April 11, 1958 [April 12, 1957 ; June 6, 1957], No. 11608/58. Class 45. [Also in Group XXI] A woven panel for fencing or for facing dikes comprises laths 1a arranged close together, laths 1b spaced from each other and crossing the laths 1a, and a wire netting interlaced with the laths and. having wires 2a, 2b. The opposite ends of a panel have respectively projections 3 and 5a, 5b which facilitate joining adjacent panels. The wires 2a of adjacent panels are welded together at the joint between panels. In an alternative joint, the laths 1a are interleaved as shown in Fig. 6, and four cover strips (not shown) are bolted, two on either face of the joint, to register with the ends of the laths la, the bolts passing between the closely spaced wires 2b which are located at the ends of each panel.