baber/WOPTO huggingface dataset:
Patent GB-504445-A (GB)
Title: Improvements in and relating to stocking form supports
IPC: D06F59/06
Filed: 1938-09-23
Abstract: 504,445. Stocking - drying forms. TUGWOOD, R. J. (Trisco Products, Inc.) Sept. 23, 1938, No. 27787. [Class 34 (i)] In a support for a stocking-drying wire form 17 having a gap between its terminal ends 18, 19, comprising a base 11 to the underside of which both terminal ends of the form are clamped by clamps 20, a side wire near one terminal end of the form is embraced between the walls of a laterally open base slot 29 so as to prevent tilting of the form. The slot is formed in a raised portion 28 of the base member, one or both walls of the slot being inclined inwardly to form a tapering slot. The terminal ends of 'the form are seated in jaws' 25 in the clamps which latter are bolted to the base member by bolts and nuts. The clamping position of one of the terminal ends may be varied to adjust the width of the form. A number of forms may be supported simultaneously, two being shown.
Patent GB-824811-A (GB)
Title: Transistor receiver
IPC: G08B3/10
Filed: 1957-09-04
Abstract: 824,811. Electric selective signalling. GENERAL DYNAMICS CORPORATION. Sept. 4, 1957 [Oct. 4, 1956], No. 27896/57. Class 40 (1). [Also in Group XL (c)] A transistor receiver solely adapted for calling, comprises a super-regenerative detector transistor 10, Fig. 1, coupled to a transistor amplifier 40 followed by a relay 52 having a plurality of resonant contacts 54, 56, which operate at a predetermined sequence of audio tones to trigger a quiescent oscillator 70 and thus attract attention. As described, the calling signal consists of a sequence of two audio frequencies modulated on to a carrier which is received at the antenna 22 whereupon the super-regenerative detector 10 oscillates at a frequency determined by the tuned circuit 18 and 20. Capacitor 26 provides a positive feedback path for the oscillator and the quench frequency is dependent upon capacitor 30 and resistor 32. The audio output from the detector is fed to the transistor amplifier via a transformer 34 which is tuned to the midfrequency of the band used for the calling signals by capacitor 36. Relay 52 is in the collector circuit of the amplifier and has tuned contacts 54 and 56 which operate on receipt of their resonant frequencies. Contact 54 operates on the first audio frequency and charges capacitor 64 slowly via resistor 62, to prevent false operation of the calling circuit by transients, and if the second audio frequency for 56 is not received capacitor 64 discharges via resistor 66. If, however, the second sequential signal is received and operates contact 56, a pulse from 64 is applied to trigger the oscillator. The oscillator stage is normally quiescent with a loop gain less than 1 but on receipt of the pulse from capacitor 64 the stage gain is increased and the stage oscillates via a feed-back transformer 84 at a frequency determined by the transformer 80 and capacitor 78. A loudspeaker is connected to the secondary of transformer 80 and provides an audible alarm when the oscillator is in operation. The oscillator is stopped by manual operation of the switch 86. Fig. 2 shows an alternative method of connection for triggering the oscillator.
Patent GB-507465-A (GB)
Title: Improvements in methods and apparatus for the continuous extraction of solids by liquids
IPC: C11B1/10
Filed: 1938-09-24
Abstract: 507,465. Solvent extraction of seeds and other materials. HANSA - MUHLE AKT.-GES. Sept. 24, 1938, Nos. 27917 and 27918. Convention dates, Sept. 24, 1937 and May 10, 1938. [Class 91] In an extraction process in which sieve-bottom containers holding the raw material mounted on an endless conveyer are treated with solvent, the solvent supplied to each container equals or exceeds the amount passing out through the bottom, so that the container is filled with solvent during a substantial part of the cycle. The outflow of solvent through the container bottom is controlled by adjustable openings therein. Containers 19, Fig. 1, provided with sieve-bottoms are suspended from an endless chain, 16 passing over sprockets 14, 15, the whole mounted in a closed chamber 13. Seeds are supplied through a hopper 30, and a solvent such as benzine, benzol, alcohol, or mixtures thereof, is sprayed from a pipe 21. Solvent extract flows from one container to the next below, and the concentrate is drawn off through a pipe 24 to a recovery still. The partially exhausted seed is treated in the left-hand part of the cycle with fresh solvent from a pipe 26. The once used solvent collects in a well formed by a partition 25, from which it is pumped through a pipe 27 to the pipe-sprayer 21. The exhausted seed is tipped from the containers at the top of the cycle, into a funnel 32. The openings in the sieve bottom have a cross-sectional area which maintains the container full of solvent. The container may have a bottom 3, Fig. 3, with a large number of openings, and a lower plate 4 with a smaller number of openings 5, each having a thread adapted to receive a screw stopper. The stopper consists of a threaded closure member 9, Fig. 6, having a cone 10, and lateral outflow openings 11. Solvent extract overflows through cut-out portions (i of the container 1, Fig. 3, and is deflected by plates 7 from the outer wall, to drip into the next tower container.
Patent GB-675081-A (GB)
Title: Improved machine for use in the production of return bends in tubes
IPC: B21C37/28
Filed: 1950-11-16
Abstract: 675,081. Making return bends. HUET, A., and COMPAGNIE DES SURCHAUFFURS. Nov. 16, 1950 [Nov. 16, 1949], No. 28052/50. Addition to 662,174, [Group XXVII]. Classes 83 (ii) and 83 (iv). Angular bending.-The machine for reducing the radius of curvature of return bends claimed in the parent Specification has the dies for effecting the bending actuated by a symmetrical linkage. The clamping device comprises a bed 9 on which the return bends are clamped by a wedge member 23 moved by a fluid cylinder. The bending dies n<SP>2</SP>, n<SP>3</SP> are operated by toggles 39 or bell-crank levers by a fluid cylinder el arranged to exert maximum pressure when the piston reaches the end of its operative stroke.
Patent GB-1523321-A (GB)
Title: Mechanical handling equipment
IPC: A01D87/12
Filed: 1975-10-31
Abstract: 1523321 Bale gripper R SANDERSON 31 Oct 1975 [3 July 1975] 28054/75 Heading B8H A bale gripper for handling so called "big" or round bales comprises a frame 10 for attachment to a lift truck or the like and a pair of arms 12 mounted respectively on telescopic structures 11a movable within tubes 11 of the frame by an hydraulic actuator 14. Bale engaging pads 13 are rotatably mounted at the free ends of the arms 12 and a cutter drum 15 is rotably mounted on further arms 16 pivotally mounted on the frame for movement by an hydraulic actuator 17 to move the drum towards and away from a gripped bale. The drum is rotatably driven by an hydraulic motor 18 whereby on engagement with the gripped bale it causes same to be unwound or unwrapped. Alternatively one of the pads 13 may be driven and the drum held stationary.
Patent GB-742343-A (GB)
Title: Comminuting and centrifuging machine
IPC: A47J19/02
Filed: 1953-10-12
Abstract: 742,343. Juice extractors. KRON, M. Oct. 12, 1953, No. 28084/53. Class 28(2). [Also in Group I] Juice and separated pulp is obtained from fruit, vegetables &c., placed in a hopper 13 and pressed down by a plug 15 against one or more rotated comminuting blades 11 which grates the fruit against teeth 16 at the bottom of the plug 15. The material is then comminuted between the blade 11 and superposed annular grinding rings 24, 25 between which it squeezes out for further comminuting. The material then is thrown out to the bottom of a rotated juice screening cage 6, the cup-shape of which allows the material to spread up on the screen through which the juice passes to a chamber 5 and a further screen 4 to a juice collector 2 and an outlet 3, which has hook like notches for suspending a juice receptacle. The sieved pulp leaves the upper edge of the cup shaped cage 6 by centrifugal action and assisted by conveyer blades 21 on the bowl is thrown out through an outlet 17 to a pulp receiver 18. Air holes 20 prevent a vacuum forming inside the apparatus. The cover 14, integral with the hopper 13, is removable from the main housing 1 by disconnecting at the bayonet joint 22. Radially extending ribs (37, Fig. 2, not shown) on the part 26 of the hopper prevent air eddying. The device is rotated from a drive shaft 9 coupled to the under motor of a mixer, detachable connections 31, 32 and a rubber base 35 allowing replacement of the mixer bowl by the juice extractor by slight rotational movement to engage lugs 35. The plug 15 is prevented from rotating by its projecting tongue 38 engaging a slot 39 in 26. In a modification, Fig. 3 (not shown), the pulp is removed from halves of oranges &c., by pressing them down on a conical rotated reaming-like head by a correspondingly shaped presser plug. The hopper 13 may be widened at its lower end to include a comminuting blade co-operating with the rotated blade 11.
Patent GB-355075-A (GB)
Title: Improvements in and relating to tip-up seats
IPC: A47C7/58
Filed: 1930-10-27
Abstract: 355,075. Tip-up seats. GREEN, W. WILKES-, 16, New Street, Guernsey. Oct.127, 1930, No. 28222. [Class 52 (ii).] In a tip-up chair with a detachable seat member, a slotted bearing bracket, comprising two integral plates at right-angles to each other, is secured to the seat, and a trunnion carried by the chair standard obtains a bearing at the end of the slot and is locked therein by a latch movable across the slot. Figs. 2 and 4 show such a device, the bracket 23, 24 being slotted at 25, the trunnion 22 bearing on the end 26 of the slot and being locked therein by the latch 28, pivoted at 29. Fig. 7 shows a modification wherein a sliding latch is provided, while in Fig. 6 the pivoted latch is weighted at 32.
Patent GB-345311-A (GB)
Title: An improved method of imparting printing capability to photographic images in emulsions which are excessively poor in silver
IPC: G03C5/48
Filed: 1929-09-18
Abstract: 345,311. Intensifying photographic images; colour photography. LIERG, F., 2, Ditscheinergasse, Vienna. Sept. 18, 1929, No. 28279. [Class 98 (ii).] A silver image so thin as to be unprintable is converted into a graduated printable image by transforming the silver into a mordant compound, and dyeing with a phenosaffranin which gives a gradation in the form of colour varying from yellow to deep red. A pure yellow dye such as thioflavine may be mixed with the phenosaffranin. The dye may be fixed by a lake-forming substance (e.g. " katanols "), and the mordant image may be blackened with sodium sulphide. These two operations may be carried out successively or simultaneously. The above process is particularly applicable for a front transparent film of a threecolour pack. The intermediate film need not be so transparent as the front film, and may be treated as above with a yellow dye such as thioflavine or chrysoidine. Reference is made to Specifications 132,846 and 147,103, [both in Class 98 (ii), Photographic processes &c.].
Patent GB-172469-A (GB)
Title: Improvements in control mechanism for change-speed gears
IPC: G05G7/16
Filed: 1920-10-06
Abstract: 172,469. Rycroft, N., Corner, J. A., and Meats, T. W. L. Oct. 6, 1920. Variable-speed gearing applicable to motor vehicles is so arranged that the gear box is movable to adjust the tension of a transmission belt or r chain. The box A is supported by a clamping-plate C, which carries the pivot E<2> of the gear-control mechanism. Bolts A<2> pass upwards from the box A through slots B<2> in a platform B and through the plate C to clamp nuts A<3>. Thus the plate C slides with the box A when the bolts are moved in the slots B<2>, being guided by splines &c. B<4> on the platform B. To a pillar C<2> extending upwards from the plate C there is connected by a clamp D<2> a member D supporting the fulcrum E<2> of the change-speed lever E. The effort is transmitted to the gearing through a lever E<3> and link E<4>.
Patent GB-500601-A (GB)
Title: Antiparasitic product and method of making same
IPC: A01N43/24
Filed: 1937-10-18
Abstract: 500,601. Vermin-destroying preparations. FAVORIA SOC. ANON. Oct. 18,1937, No. 28307. Convention date, May 24. [Class 81 (i)] An anti-parasitic preparation, particularly suitable for the destruction of snaits, slugs and the like, comprises metaldehyde, a bait (such as bran, rice, Hour) and a coloured material of such nature and quantity that an appreciable degree of humidity will be retained in the completed product.. Coloured chalk and ochre are suitable additions and are stated to prevent atmospheric decomposition of the metaldehyde.
Patent GB-447239-A (GB)
Title: Improvements in and relating to circuit arrangements for the control of the discharge in gas or vapour filled discharge vessels
IPC: H01J17/04
Filed: 1935-10-14
Abstract: 447,239. Converting. SIEMENSSCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Oct. 14, 1935, No. 28350. Convention date, Jan. 23. [Class 38 (ii)] [See also Group XL] In arrangements for rectifying A.C. or for converting D.C. to A.C. and for similar purposes in which current is transmitted through gas or vapour discharge apparatus wherein the anodecathode path is normally blocked by a negatively charged grid or sleeve, ignition is effected at a predetermined moment by lowering the potential of the anode to approximately the potential of the cathode. In the rectifying arrangement shown, a discharge device 1 having a mercury cathode on which an excitation arc is continuously maintained by an auxiliary anode 5 has its grid 3 negatively biassed by a D.C. source 6. The A.C. supply 11 and load 12 are connected in series across the anodecathode path of the discharge device, and starting of the discharge at each positive half cycle of anode voltage is effected by switching across the anode-cathode path a condenser 8 so that the anode potential falls substantially to that of the cathode and rises again as the condenser becomes charged. A resistance 10 is connected across the condenser for effecting its discharge between successive periods. The self capacity of the resistance may be made such as to render the condenser unnecessary. Regulation is effected by varying the timing of the switch G. In an alternative arrangement, ignition is effected by arranging a transformer to inject into the anode circuit potential peaks adapted momentarily to neutralize the positive voltage applied to the anode. As a further modification, the grid may be brought to the required potential by connecting it to the cathode through a resistance, in which case the connection may be effected within the discharge vessel.
Patent GB-282353-A (GB)
Title: Signalling apparatus for road vehicles
IPC: B60Q1/34
Filed: 1927-10-25
Abstract: 282,353. Kustner, A. Dec. 16, 1926, [Convention date]. Road-traffic signals on vehicles.-Direction signals for use on vehicles comprise cylindrical glass-fronted and glass-backed boxes h, one for each side of the vehicle, adapted to be projected laterally of the car by lazy-tongs l, which are housed entirely within the vehicle, and to be illuminated by internal lamps k when a contact strikes a fixed contact 11. The left-hand signal is projected by pulling a cable 6, which moves a bar s inwards by means of pivoted levers x, 4 connected by a link 2. The right-hand signal is projected by a cable z and pivoted lever w moving a bar t. Catch devices hold the cables in position, the return movement of the signals being effected by springs 8. The devices are housed in a casing e disposed below the windscreen.
Patent GB-483056-A (GB)
Title: Improvements in and relating to automatic reclosing switch systems
IPC: H02H11/00
Filed: 1936-10-19
Abstract: 483,056. Protective cut-out systems. BRITISH THOMSON - HOUSTON CO., Ltd., and BUTLER, F. E. Oct. 19, 1936, No. 28385. [Class 38 (v)] A control system for automatically disconnecting. from one another two sections of a system if an overload flows between them, and reconnecting them only when their voltages are substantially equal, comprises a differential relay having its two operating coils energized by the section voltages, and contacts arranged to open with predetermined voltage-unbalance, an operating relay controlled through said contacts, and having contacts controlling the energization of a contactor or contactors which interconnect the sections, and an overload relay which, when energized, causes the de-energization of the holding coils of, or trips, the contactors, the arrangement being that when the contactors are open, no electrical connection exists between the two sections. Fig. 1 shows two sections X, Y of a system having an insulated return, interconnected by contactors A1, B1. On overload, a relay C operates contacts C1 to de-energize the contactor-holding coils A, B, so that the sections are isolated. Interlock contacts A3, A4 close and connect coils f, g across sections X, Y, respectively, so that if the voltage-difference between the sections is abnormal, the beam of time-delay relay F opens the circuit of relay-coil E, which opens its contact E1 to prevent energization of coils A, B. When the overload is removed, the beam balances and A, B close the contactors Al, B1, whereupon a retaining contact A2 for coils A, B is closed, and contacts A3, A4 open the circuits of E, F to economize current. The arrangement can be modified for use with an earthreturn, Fig. 2 (not shown). The relay E and contactors may be set so as only to operate when the voltage of either section is above a given value, notwithstanding the differencevoltage may be adequate. Fig. 4 shows a modification in which, to facilitate leakagetesting of the lines, the holding-coil and auxiliary circuits are disconnected from the lines when the contactors are closed, this being effected by latching the latter after closure by closing coils A, B. Thus the latter are energized by contacts E1 of relay E when the beam balances, and closure of the contactors opens contacts A2 .. B3 to de-energize relays E, F. Separate contactor trip coils AT, BT, are energized by closure of overload relay contacts C1. When it is desired to isolate a section, the voltage of that section is reduced so as to produce an overload current into that section, or an overload may be produced by opening the feeder-breaker G of the section X and closing the switch K over resistance H so as to produce an overload in C and isolate section X. The contactors cannot be restored until the voltage is restored across X. Any differential-type relay may be used for reclosing the contactors.
Patent GB-1109165-A (GB)
Title: Polyurethanes
IPC: C08G18/52
Filed: 1964-07-10
Abstract: A polyurethane is prepared by reacting (1) a polymer of an episulphide having at least two active hydrogen-containing groups at least one of which is a thiol with (2) an organic compound containing at least two -NCX groups, where X represents O or S. A "one-shot" process may be employed or, alternatively, a prepolymer may be prepared by using an excess of the -NCX group-containing compound and reacted with a chain extender and cross-linking agent, e.g. atmospheric water.  The reaction may be effected in the presence of an organic solvent, e.g. xylene or tetrahydrofuran.  Conventional polyurethane forming catalysts may be used.  In Examples (1) polymerized propylene episulphide was reacted with toluene diisocyanate, (2) copolymers of propylene episulphide with (a) ethylene sulphide, (b) butylene episulphide and (c) allyloxypropyl episulphide were reacted with toluene diisocyanate, (3) and (4) a polypropylene sulphide having an -NH2 group and an -SH group was reacted with toluene diisocyanate.
Patent GB-447725-A (GB)
Title: Improved handle mounting for mirrors, brushes and similar articles
IPC: A45D42/08
Filed: 1935-10-15
Abstract: 447,725. Handles for brushes, mirrors, &c. LEITER, H., 146c, Johannisstrasse, Nuremberg, Germany. Oct. 15, 1935, No. 28486. [Class 61 (i)] A hand mirror, brush or other toilet article 3 is secured in a loop-shapec U-section frame 1 con nected to a handle 11 to gether with a protective cardboard &c. layer 4, metal insertion 5 and back plate 6 by means of a screw 14 passing through a hole in the base of a sleeve 10 enclosing the converging ends 2 of the frame 1, said screw 14 bearing against a head 12 fixed to the metal insertion 5 and screwing in a nut 15 soldered between the ends 2 of the frame ; another nut 13 pulls the mounting into the sleeve 10, in the lower end of which the handle 11 is screwed. In a modification, nut 15 is omitted, screw 14 is secured at its upper end to metal insertion 5 and nut 13 is employed to clamp the part 5 in the frame and draw the latter into the sleeve.
Patent GB-1082704-A (GB)
Title: Improvements in or relating to seals,for example for rolling bearings
IPC: F16C33/78
Filed: 1966-06-24
Abstract: 1,082,704. Bearings; seals. SVENSKA KULLAGERFABRIKEN A.B. June 24, 1966 [June 28, 1965], No. 28491/66. Headings F2A and F2B. A seal for use between the inner and outer races 12, 14 of a bearing comprises an annular frusto-conical reinforcing member 30 capable of plastic deformation bonded to a frustoconical resilient sealing element 36 having lip portions 38, 40 extending radially beyond the inner and outer peripheral edges of the reinforcing member. The reinforcing member 30 may be made of soft steel and the sealing element 36 may be made of rubber. As shown, the reinforcing member is corrugated and is bonded to the sealing element by an adhesive. During assembly, the seal (shown chaindotted) is first pressed into a groove 20 in the race 14 and then deformed to its final position by a suitable tool.
Patent GB-1088358-A (GB)
Title: A method of liberation of terephthalic acid from the products of isomerization or disproportionation of potassium salts of benzene carboxylic acids
IPC: C07C51/02
Filed: 1965-07-06
Abstract: Terephthalic acid is obtained from the products of isomerization of potassium salts of benzene dicarboxylic acids or disproportionation of potassium benzoate by (a) treating the solution containing potassium terephthalate (obtained by the isomerization or disproportionation) with carbon dioxide to give a precipitate of potassium hydrogen terephthalate and a solution of potassium hydrogen carbonate; (b) decomposing a suspension of the potassium hydrogen terephthalate in water with sulphur dioxide to give insoluble terephthalic acid which is separated and a solution of potassium hydrogen sulphite; (c) treating the potassium hydrogen sulphite from (b) with excess of the initial benzene carboxylic acid which is to be converted to potassium salt and then isomerized or disproportionated, the sulphur dioxide liberated being returned to stage (b); and (d) neutralizing the remaining mixture from (c) with the potassium hydrogen carbonate obtained in stage (a), the carbon dioxide thus produced being recycled to stage (a).