baber/WOPTO huggingface dataset:
Patent GB-716792-A (GB)
Title: Improvements in or relating to apparatus for the wet separation of granular material
IPC: B03B11/00
Filed: 1951-07-06
Abstract: 716,792. Washing granular materials. HARVENGT, E. July 6, 1951 [July 8, 1950], No. 16145/51. Class 82 (2) During the wet separation of granular material in a vessel having outlets located at the periphery near the bottom of the vessel for the discharge of heavy particles and a central overflow outlet for the discharge of light particles, clogging of the outlets is prevented by a moderate current of liquid passing through the outlets in opposition to the discharging particles, the force exerted by the liquid increasing with the degree of obstruction of the outlet. The material to be separated is fed into the vessel 1 at 4, the light and heavy particles are respectively discharged through the outlets 5, 6, a rotary stirrer 2 being provided to convey the heavy particles towards the outlets 6. Particles from the outlet 6 pass through a substantially fluid-tight chamber 7 having a flexible end wall 15 and are discharged by means of contra-rotating resilient rolls 8, 9. Liquid is introduced into the chamber by a pipe 12 having a valve 13 which is normally partially open and which is connected by a linkage 17. 18, 21, 22 to the flexible end wall. Obstruction of the outlet 6 causes upward deflection of the end wall which opens the valve supplying liquid to the chamber. After the obstruction is cleared, the reduced pressure in the chamber permits downward deflection of the end wall which returns the valve to its normal setting. In modifications (Figs. 2, 3, not shown) the end wall is replaced by a piston or by a spring-loaded flexible diaphragm in the side wall of the chamber. As shown in Fig. 4, particles passing through the chamber are discharged by a roller 23 having pockets 24 and carrying an eccentric 31 which is connected by a linkage 28, 30 to oscillate a shutter 27 giving intermittent discharge of the material from the chamber. If due to obstruction of the outlet 6 particles are not passing through the chamber oscillation of the shutter is prevented by a weighted flap 32. When the shutter is not oscillating the link 30 slides in a connection 34 and the end of the link engages the forked operating lever 37 of the valve 13 to increase the rate of supply of the liquid to the chamber. After the obstruction has been cleared the shutter again oscillates and the end of the link 30 returns the valve to its normal setting. In a modification (Fig. 5, not shown) the flap preventing oscillation is mounted on the shutter. As shown in Fig. 6 particles discharged from the outlet 6 pass through the chamber 7 to fall upon pivoted plate 40 controlling flow through the valve 13. In a modification of the apparatus shown in Fig. 6 a cam on the roller 23 oscillates the pivoted plate so that pulsations are given to the liquid passing through the outlet 6. In an alternative arrangement the chamber has one pipe supplying a constant amount of liquid, and a further pipe normally closed by a valve but arranged to supply liquid when obstruction of the outlet 6 occurs.
Patent GB-478242-A (GB)
Title: Improvements in and relating to grinding wheels and like abrasive articles
IPC: B24D7/00
Filed: 1936-06-11
Abstract: 478,242. Grinding. NORTON GRINDING WHEEL CO., Ltd., and HADDOCK, W. June 11, 1936, No. 16306. [Class 60] A grinding-wheel or other abrasive article, employed in wet grinding, is coated or treated on those exterior surfaces, which are not employed for grinding, with a material which is substantially impervious to the lubricant. In the Figure a lap is shown operating with its lower flat face, and the periphery 5, the back face 4 adjoining the support 3, and the central hole 2 are all coated so as to retain the lubricant within the pores of the lap ; when the diameter of the support 3 is less than that of the lap the exposed part only of the back surface may be coated. As applied to a wheel operating with its periphery, the side faces, both faces are coated and the central hole may be coated. The coating may be of varnish, for example, shellac varnish, paint, rubber compound, synthetic resin or a ceramic or similar glaze, and may be applied by painting, spraying, dipping, &c. ; the wheel may be baked after application of the coating. Specifications 204,533, 300,417, [both in Class 60], and 441,406 are referred to.
Patent GB-931461-A (GB)
Title: Method and apparatus for extruding plastic netting
IPC: B29C48/07
Filed: 1961-05-05
Abstract: <PICT:0931461/IV(a)/1> <PICT:0931461/IV(a)/2> <PICT:0931461/IV(a)/3> <PICT:0931461/IV(a)/4> <PICT:0931461/IV(a)/5> Apparatus for the continuous extrusio of a netting or meshed structure of resinous plastic material or metal includes a plurality of extrusion nozzles, at least some of which are swingably mounted on a hollow die head and, power means for swinging the nozzles in a known time sequence, pairs of which nozzles are arranged to contact each other at their discharge ends at the ends of the arcs of swing so that adjacent strands are periodically welded together as they are being extruded. In a preferred embodiment (Figs. 1, 2, 10) a die head 15 is provided with heating means (not shown) and an inlet 16 via which plastic material under pressure enters axial ducts 17 formed in a plurality of oscillating pins 18 and fixed pins 18a, said pins being provided with screw-in discharge nozzles 19, 19a.  The pins 18 are rotatable in the head 15 by arms 30a, 30b transversely fixed thereto, said arms being pivotally connected to reciprocating rods 31, 32 driven by a power actuated shaft 39 by means, for example, of cranks 37, 38.  The nozzles 19 are provided with tapered extrusion passages terminating in openings 27 in knife edges 26 formed by the bevelled ends of said nozzles.  In operation, reciprocation of the rods 31, 32 causes the nozzles 19 to swing such that at the ends of the arcs of swing the bevelled ends of adjacent nozzles make contact so that the extruded strands C are periodically welded in pairs as at W.  The flat netting N formed thereby is cooled in a water tank (not shown) beneath the head 15.  In another embodiment (Figs. 5 and 6, not shown), the die head comprises two clamped parts to facilitate cleaning &c. In a further embodiment (Figs. 7, 8), to produce netting as a continuous tube, a die head 70 has an inlet passage 71 to a chamber 72 therein, which chamber receives the open ends of radially disposed, oscillating pins 73, 74.  The pins carry nozzles 75 of the type previously described and links 81, 82 with ball-shaped heads 83, 84 which are received by sockets in rings 85, 86 surrounding the die head.  The rings 85, 86 are contra-oscillated by a mechanism comprising cranks 87, 90, a crank disc 88 and a power actuated shaft 89, to cause a rocking of the nozzles 75.  The process for forming single and welded strands, C and W, is then similar to that previously described. In further embodiments described, the extruded strands may be of tubular section, in which case, means are provided to supply air under pressure to the interior of the tubes as they are formed.
Patent GB-1426471-A (GB)
Title: Apparatus for operating authorisation control systems
IPC: G07C9/00
Filed: 1973-04-05
Abstract: 1426471 Card operated lock NOTIFIER CO 5 April 1973 [30 June 1972] 16335/73 Heading E2A [Also in Division G4] A reader for a card such as a credit card, identity card, key or vending card having conductive areas contained within an opaque cover has two boards spaced to sandwich an inserted card and carrying respectively primary and secondary coils of a transformer for each bit in a column of data on the card. The secondary coils are placed in cup shaped ferrite pot cores and preferably the secondary has at least four times the number of turns of the primary to increase signal to noise ratio. The card may carry a clock track to initiate reading action on either manual insertion or withdrawal and have a portion sensing when the card is correctly positioned so that all the data is available for readout when the card is withdrawn. Clock pulses may be sensed to supply pulses to the primary coils when the data columns are aligned between the sensors. Pulses are continuously applied to the clock sensor primary (Fig. 9 not shown) and if a clock mark is not detected pulses are applied to a monostable circuit to hold it in its unstable position. If a conductive area representing a clock bit is detected at least one pulse is not fed to the monostable which reverts to a stable state. The monostable may enable a supply of pulses to the primary coils (Fig. 13) or pulses may be continuously fed if a clock track is not provided. As with the clock track, sensor pulses received when a conductive area is not present maintain a monostable in its unstable state and the absence of pulses is detected by the monostable (Fig. 13a not shown). Digits from successive columns may be decoded into 1 out of 10 code and fed to a comparator (Fig. 10). This has selected patch connections to identify one or more digits in a number. A pulse occurs on the first to fourth digit lines if the digits correspond with the selected connections and the pulses are fed to a correct digit counter (Fig 11) via gates enabled by a further counter (Fig. 12) receiving stepping pulses and thus counting the number of digits examined. The number of correct digits and the number of digits examined are compared to determine if the correct data has been read. The data may also be supplied by a keyboard.
Patent GB-563902-A (GB)
Title: Improvements in twist lace machines and the production of fabrics and articles thereon
IPC: A45D8/40
Filed: 1942-11-19
Abstract: 563,902. Twist - - lace machines. BYARD MANUFACTURING CO., Ltd., and HUNTER, A. E. Nov. 19, 1942, No. 16349. [Class 74 (i)] The fabric-take up members 10 of a twistlace machine are so shaped that the rate of take-up varies across the breadth of the fabric. Alternatively, the work rollers are so shaped and the fabric passes from the work rollers to the usual guiding roller and take-up roller. The members 10 may be of somewhat elliptical shape as shown, or may be kidney-shaped or of other asymmetrical shape.
Patent GB-564193-A (GB)
Title: Electronic translating devices
IPC: H01J31/04
Filed: 1942-11-20
Abstract: 564,193. Electric measuring systems. ZIEBOLZ, H. Nov. 20, 1942, No. 16482. Convention date, Dec. 22, 1941. [Class 40 (i)] [Also in Groups XVIII, XXXIX and XL] Electronic translating apparatus comprises a cathode-ray tube producing an electronic beam acted upon by a deflecting device influenced by normal input signals, the output circuit of which includes means controlled by the beam for establishing increasing amounts of energy flow in the output circuit with increasing deflection of said beam, and energizes means for variably controlling the same deflecting device synchronously with variation of the normal input signals and in a direction to limit the amount of deflection of the beam. In the arrangement shown in Fig. 1, the electronic beam 25 of a cathode-ray tube 20 is symmetrically disposed between collecting electrodes 26, 27 connected through an amplifier 38 to a load 31. Signals from a source 33 are fed through an amplifier 33a to a deflecting coil 32 to cause a corresponding potential difference between electrodes 26, 27 and a consequent change in output current. A potentiometer 35 across the output feeds a proportion of the output voltage to the input in reverse phase so as to oppose deflection of the electronic beam and establish an equilibrium position. This improves the linearity of operation. In Fig. 2, the electronic beam is deflected by plates 36, 37 in dependence on the degree of unbalance of a Wheatstone bridge R1, R2, R3, R4. The compensating potential from output potentiometer 35 is fed to one or more arms of the bridge, such as R1, in such sense as to restore balance, and the degree of unbalance is indicated by a meter 31a. This could be used as a measure of temperature if one of the resistances of the bridge were temperature sensitive. In a further modification, Fig. 3 (not shown), the beam is deflected by a permanent magnet on a pivoted arm, such as a weighing machine and the output potentiometer feeds an electromagnet acting on the beam in a sense to oppose the displacement. The weight is then indicated by a meter across the output. Specification 563,561 is referred to.
Patent GB-956087-A (GB)
Title: Improvements in or relating to umbrellas
Inventor: ISHAM JOHN HENRY
IPC: A45B25/02
Filed: 1962-05-01
Abstract: 956,087. Umbrellas. E. M. ISHAM, and P. R. ISHAM. April 3, 1963 [May 1, 1962], No. 16640/62. Heading A4P. An umbrella assembly comprises a flexible cover 5 secured to and normally maintained extended by ribs 6 radiating from a handle attachment member 8, the ribs being bendable to fold the assembly with the ribs parallel and springing to the spread position on release. The ribs and cover are preferably of polythene, the ribs being of tapering rectangular section with a narrow flat surface 9 heat welded to the cover, and of reduced depth at 11, for bending, at their attachment to the hollow boss 8 in which the end of a telescopic handle 7 is a spring fit. Due to their narrow with a the collapsed assembly can be folded as shown in Fig. 5 round the telescoped handle, for insertion in a pocket or enevlope, and the greater depth b renders the assembly resistant to folding by wind pressure. In modifications the ribs are curved and are secured on the under surface or midway between the surfaces of the cover and the handle is in two separable parts.
Patent GB-451098-A (GB)
Title: Method of regulating radio apparatus
Filed: 1934-10-23
Abstract: 451,098. Wireless receiving-apparatus. KRAMOLIN, L. L. DE, Gross - Glienicke, Kladow, Berlin. Oct. 23, 1934, Nos. 16656/36 and 16657/36. Convention dates, Oct. 23, 1933 and March 14, 1934. Divided out of 449,240. [Class 40 (v)] The tuning of a radio receiver is accomplished from a remote point by varying the bias applied to a condenser or condensers of the type having a piezo-electric dielectric, such as Seignette salt or in which the electrode spacing is a function of the potential difference therebetween, such as an electrostatic loudspeaker. The remote control arrangements may be those described in Specification 449,240. Automatic tuning may be accomplished by using the D.C. component of the demodulator output to provide the tuning bias. Specifications 301,498 and 313,414, [both in Class 40 (v)], and 362,377 and 409,737 also are referred to.
Patent GB-533079-A (GB)
Title: Colouration of cellulose ester materials
IPC: C09B31/043
Filed: 1939-06-07
Abstract: 533,079. Dyeing cellulose esters. HOUSE, K. R., and OLPIN, H. C. June 7, 1939, No. 16695. [Classes 2 (iii) and 15 (ii)] Cellulose acetate or other cellulose ester filaments of a textile material consisting of such filaments with or without associated cellulose filaments are coloured by applying to the material an aqueous dispersion of a nitroaryl-azo-aniline, diazotizing this on the material and coupling with a primary mono-amine of the benzene seiies free from nuclear hydroxyl groups and coupling in p-position to the primary amino group. The dispersion may be applied in a bath or by mechanical impregnation, as by padding or printing with fixation by ageing or steaming, and diazotization and coupling then effected in a separate bath. The colourations are orange to brown, fast to light and washing and readily dischargeable, e.g. with zinc formaldehydesulphoxylate. Specified nitroaryl-azo-anilines are those obtainable by diazotizing 2- or 4- nitroaniline, 5-nitro-2-aminotoluene, 5-nitro-2- aminoanisole, 4-chloro-2-nitroaniline, 2- chloro-4-nitroaniline or 2:6-dichloro-4:-nitroaniline and coupling with aniline, 3-toluidine, 3-chloraniline, p-xylidine, cresidine or 2:5- dimethoxyaniline. Specified final coupling components are 3-toluidine, 3-chloraniline, 3- acetylaminoaniline and its 6-methyl- and 6- methoxyderivatives, p-xylidine and cresidine. When mixed materials consisting of cellulose ester filaments and natural or regenerated cellulose filaments are to be coloured, a dyestuff for the cellulose may be applied before or after coupling to form the disazo dye on the cellulose ester filaments. Topping colours may also be applied before or after such coupling. In examples, (1) a cellulose acetate fabric is dyed a golden brown shade by immersion in an aqueous soap dispersion of 2-chloro-4-nitroaniline - 3-chloroaniline, followed by diazotization, rinsing, development with an aqueous turkey red oil dispersion of p-xylidine, rinsing and soaping ; if the p-xylidine is replaced by 3-toluidine a paler shade and if by 3-chloroaniline an orange yellow shade is obtained ; (2) a cellulose acetate fabric, dyed with 2-chloro- 4-nitroaniline # 3-chloroaniline and diazotized as in (1) is immersed in an aqueous hydrochloric acid solution of cresidine neutralized with sodium acetate, rinsed and soaped to obtain a brown shade.
Patent GB-851599-A (GB)
Title: Improvements in or relating to devices for arranging or marshalling dough pieces in or for the manufacture of bread or like products
Inventor: PALMER AUSTIN RICHARD
IPC: A21C9/08
Filed: 1956-05-30
Abstract: 851,599. Endless-belt conveyers. BAKER PERKINS Ltd. Aug. 26, 1957 [May 30, 1956], No. 16701/56. Class 78 (1). A rotatable member 4 provided with arms 8 and frictionally loaded against rotation receives dough pieces 5 one at a time from a moulder 3 and when two pieces have been dropped on the same arm, is turned under the influence of their weight to deposit them side-by-side and mutually adhering on a conveyer 1. A loaded pivoted flap 18 is mounted in the path of the pieces. This flap will not yield under the pressure of a single piece and is covered with felt to reduce slip between it and a piece. The flap yieldingly arrests the leading piece B which is lifted with the flap by the pressure of the piece A. As it is lifted, it rolls over the piece A until their positions are reversed. This movement increases the adhesion between the pieces. At the end of the conveyer 1 the pieces drop on to a conveyer 22 arranged transversely to it.
Patent GB-150486-A (GB)
Title: Improvements in the method of holding articles or objects in furnaces for the heat treatment of the same
IPC: C21D1/54
Filed: 1919-07-04
Abstract: 150,486. Gaunt, C. F., and Walter, C. M. July 4, 1919. Charges; suspending in furnaces; discharging; cooling discharged materials. - Metal articles are held or suspended in a tube furnace by an electromagnet having a pole or holder extending into the upper part of the furnace; when the temperature of recalescence of the metal being heated is reached, the articles are automatically released for quenching. In one form of the invention shown in Fig. 4 in connexion with a pair of furnaces of the kind described in Specification 117,903, an electro-magnet of horse-shoe form is used. The pole-pieces b are removable, and the articles such as needles are temporarily held thereto in paper capsules r which burn away when the pole-piece has been inserted in the furnace. A keeper k is preferably used in connexion with the electro-magnet, and the ends m and the horizontal portions o beneath the furnaces are made of conical or knifeedge form so that the articles will not be deflected substantially from the axial direction when falling. For a single furnace, the magnet is straight and has an enlarged end which may have concentric rings formed on it to provide better contact with the needles. In another form, Fig. 5, the electro-magnet is cylindrical, with the winding round a central core s protected from the heat by asbestos packing t. The lower edge of the outer cylinders may be bevelled, and the end of the core mav be coned so that the articles will be held more or less radially.
Patent GB-595341-A (GB)
Title: Improvements in or relating to a photographic shutter provided with a flashlight synchronising device
IPC: G03B9/70
Filed: 1945-07-02
Abstract: 595,341. Electric couplings. KODAK, Ltd. July 2, 1945, No. 16785. Convention date, June 13, 1944. [Class 38 (i)] [Also in Group XX] A terminal 75 adapted to be connected to a flash lamp circuit by a bayonet connector 85 has its shell 76 earthed to the shutter casing and the plunger 82 to the insulated contact 55. Located within the shell 76 is a sleeve 77 insulated from the shell 76 and the shutter casing by an insulating bushing 78 and terminating in a threaded end 79 provided with a nut 81. Slidable in the sleeve 77 is a plunger 82 spring pressed upwardly by the spring 83. The bayonet connector 85 has an insulating portion 86 to which is connected a metal sleeve 87 having a bayonet slot 88 engaging a pin 89 projecting from the sleeve 76. One lead 90 of the lamp circuit is soldered to the sleeve 87 and the other lead 91 is connected to the centre contact 92 engaged by the plunger 82.
Patent GB-1273078-A (GB)
Title: Process and device for filtering fibre or film-forming high molecular weight polymers
IPC: D01D1/10
Filed: 1970-04-09
Abstract: 1,273,078. Filtering polymer melt. FARBWERKE HOECHST A.G. 9 April, 1970 [12 April, 1969], No. 16910/70. Heading BID. [Also in Division B5] A process for filtering melts or solutions of high molecular weight polymers prior to spinning comprises passing the spinning mass through a filter pack 3 of finely divided particles 4 of an inert material, suitably granular silicon carbide, quartz sand or corundum, arranged on a sieve plate 2 above a spinneret plate 1, the packing material being arranged in the pack such that the mean grain size of the particles, defined as the arithmetic mean of the diameters of the particles at any given distance x from the top of the filter pack, continuously decreases in the direction of flow of the spinning mass. Preferably the packing material consists of two different sized grains arranged in the pack so that the continuous decrease in mean grain size is linear or exponential according to the equation ke<SP>-x</SP> where e is the basis of natural logarithans, x is the thickness of the filter pack measured from the top and k is a constant. A linearly decreasing mean grain size may be achieved by use of the apparatus of Fig. 2 which consists of a flat box 5 divided into two sections 7 and 8 by a plate 6. As the base plate 9 is withdrawn in the direction shown the sand falling into the filter pack contains a linearly decreasing proportion of the contents of section 8, i.e. of the finer grained packing material, until at the point where base plate 9 is nearly removed the sand falling into the pack is almost exclusively, the coarser grained component of Section 8. An exponentially decreasing mean grain size may be achieved by adapting separating plate 6 to the required shape.