baber/WOPTO huggingface dataset:
Patent GB-597509-A (GB)
Title: Electron discharge devices and circuits
IPC: H03F1/06
Filed: 1944-02-21
Abstract: 597,509. Cathode-ray tubes. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 21, 1944, No. 3228. Convention date, Nov. 11, 1942. [Class 39 (i)] An oscillatory electron discharge device, such as described in Specification 541,477, comprising a cathode 11 for producing a stream of electrons, a collector 13 for receiving the stream, a modulating grid 12 for modulating the stream and a resonator 17 for coacting inductively with the stream, has means 24 for applying modulating potentials to the grid 12 and simultaneously to the collector so as to maintain the latter at the optimum collecting potential. In the form shown, the modulating means 24 is used in association with a radiofrequency modulator 21 of fixed amplitude, and is connected in series with the grid bias battery 30 and choke 23 ; it is also connected through a transformer 25 to the collector 13. The device comprises two spaced screening and accelerating electrodes 15, 16 connected to the resonator, a magnet having two annular polepieces energized by a coil 35 and yoke 34 and a suppressor electrode 14.
Patent GB-783678-A (GB)
Title: Production of dense coke
IPC: C10B57/12
Filed: 1956-02-01
Abstract: 783,678. Coking. CABOT, Inc., G. L. Feb. 1, 1956, No. 3253/56. Class 55 (1). Dense coke is produced from coal, pitch, petroleum residues, &c. by continuously distributing a volatile liquid hydrocarbon over the surface of the charge whilst it is frothing during coking. As shown; the heating of the charge is by flues 12, the charge being fed to the floor 14 through a port 16. The offtake 18 has a valve 26 whereby the products may pass to a stack 20 or to a condenser 24 which may be of the bubblecap type. The condensed hydrocarbons are recycled by a pump 34, with make-up feed at 36 if necessary, and are sprayed at 30 on to the charge which is maintained at approximately 1500‹ F. The sprays 30 may be positioned in the walls of the oven. Condensed hydrocarbons not required for recycling are removed at 38 and uncondensed hydrocarbons are removed at 40.
Patent GB-103722-A (GB)
Title: New and Improved Compound for use as a Fertilizer and Process, or Method, of Fertilizing.
Inventor: JOHNSON JAMES YATE
IPC: C05C5/04
Filed: 1916-03-06
Abstract: 103,722. Johnson, J. Y., (Badische Anilin & Soda Fabrik). March 6, 1916. Calcium nitrate.-A compound of calcium nitrate and urea having the formula Ca(NO3)2, 4CO(NH2)2 is prepared by mixing the two substances in the requisite proportions with a small quantity of water or by crystallization from an aqueous solution of the two substances. The compound is useful as a fertilizer.
Patent GB-755544-A (GB)
Title: Improvements in or relating to ejector slides of type-casting machines
IPC: B41B11/72
Filed: 1954-02-04
Abstract: 755,544. Type-bar-making machines. LINOTYPE GES. Feb. 4, 1954 [Feb. 9, 1953], No. 3370/54. Class 100 (3). Ejecting type-bars.-A coupling connection between the interchangeable ejector rods each carrying an ejector blade and the ejector slide of a type-casting machine comprises a resilient member such as a leaf spring 6 detachably fixed as by a screw 7 to the slide 2 and carrying a coupling bar 3 adapted to fit behind the lugs 4 of the rods 1, the resilient member being movable manually, for example by means of a tongue 6 constituting a handle, so as to move the bar out of the retaining position against the return force of the resilient member.
Patent GB-524578-A (GB)
Title: Improvements in earthing devices for use in connection with truck-type switchgear
IPC: H02B11/28
Filed: 1939-02-01
Abstract: 524,578. Switchgear structures. BRITISH THOMSON - HOUSTON CO., Ltd., and TRENCHAM, H. Feb. 1, 1939, No. 3397. [Class 38 (v)] The fixed part of vertically - withdrawable switchgear is earthed by an earthing unit which is inserted in place of the withdrawn breaker and has contacts adapted to be plugged into corresponding contacts on the fixed part. The unit comprises a box 7 which is slidable on a framework 8 and is raised by applying a handle to a pin 22 to stretch a toggle 18, 19. The unit is correctly located by means of vertically - adjustable pins 10 mounted on the framework 8 and engaging sockets 11 on the fixed part A. A conductor for each phase is mounted in an insulator 3 in the box 7 and has contacts 6, 16 at the ends for engaging the fixed contacts C' and 12, respectively. During the raising movement of the box 7, a latching-member 20 engages a pin 24 on an earthed bridge-member 13 carrying the contacts 12 and so stretches springs 15. The member 20 is deflected to free the bridge 13 and permit rapid closure of the earthing circuit, by the engagement of a pin 27 by a lever 26 which is preferably remotely operated by a lanyard. A test bushing 28 may be provided for each phase.
Patent GB-153504-A (GB)
Title: Improvements in machines for moulding metals, with particular reference to dental apparatus
IPC: B22D13/06
Filed: 1920-02-04
Abstract: 153,504. Contenau, C., and Collignon, A. Feb. 4, 1920. Casting - machines. - Centrifugal casting-machines having a mould 50 and a counterweight 24 carried by an arm 11 which is rotated by a coiled spring 3 are arranged so that the counterweight has an adjustable travel on the arm which is free to rotate in one direction relative to the driven shaft 5. The mould 50 is placed in a cage 12 pivoted to the arm 11, the cage being normally held by a catch 32, Fig. 1, but when this is withdrawn by link-work 34, 36 and held by a cam-plate 38, the arm 11 &c. is rotated through a one-way ratchet clutch 8, 9 and shaft 5 by the spring 3 which is wound up by a detachable handle 40. The counterweight 24 moves radially outwards until it engages the adjustable buffer 25 and the cage 12 takes up a radial position and is held by a catch 14. The clutch allows the rotation to continue after the spring is unwound, but when it becomes almost nil the weight 24 returns to its normal position, where it is held by a catch 28, Fig. 2, 'and the motion ceases. The mould has a pivoted cover 51 which is held closed by a pawl 21 and fixed ratchet or by a spring 53, Fig. 4, the cover in this case being kept open till the rotation commences by engagement with the catch 32.
Patent GB-834402-A (GB)
Title: Grab means for industrial lift trucks
Inventor: POTTER ALFRED ALAN
IPC: B66F9/18
Filed: 1955-02-04
Abstract: 834,402. Masted lift trucks. ELECTROHYDRAULICS Ltd. May 1, 1956 [Feb. 4, 1955], No. 3421/55. Class 78 (3). The inwardly slidable grab arms of a lift truck can be adjusted so that their lower edges are closer together than their upper edges. In the construction illustrated, this is effected by mounting plates 8 (Fig. 1) adjustably on the grab arms 7. Two plates 8 are shown pivoted to upper and lower levers 10, 12 pivoted centrally to each arm 7. The pivot pins 18, 23 (Fig. 4) for the levers 10, 12 fit loosely in brackets 16, 19 on the grab arms 7 so that screws 24 and lock-nuts 25 can be used to adjust the plates 8 about horizontal axes lying roughly in the plates 10. Compression springs between the plates 8 and the lever 10 normally hold the plates 8 against misalignment with the arm 7 about vertical axis. Specification 694,956 is referred to.
Patent GB-142922-A (GB)
Title: Improvements in or relating to percussive pneumatic hand tools
IPC: B25D17/04
Filed: 1919-02-12
Abstract: 142,922. Slade, A. G., Slade, L. W., and Roy, J. Feb. 12, 1919. Percussive hand tools.-Relates to a percussive hand-tool for riveting &c., of the kind in which the hose connexion is so placed that the weight of the hose is evenly distributed. The hose connexion G locks in place a bushing 3 containing a throttle valve 2 which is pressed by one or more springs 16, and is operated either by an inside trigger 14, Fig. 1, or by an outside trigger 23, Fig. 4, acting through a. pin 22 and bell-crank lever 21, these trigger mechanisms being interchangeable. When the valve is open, fluid passes through ports 7, 10, Fig. 3, annular recess 12 in the valve, and a port 15 to operate the tool.
Patent GB-539038-A (GB)
Title: Improvements in or relating to packing rings
IPC: F16J9/20
Filed: 1940-02-24
Abstract: 539,038. Stuffing-boxes. NAPIER & SON, Ltd., D., and HALFORD, F. B. Feb. 24, 1940, No. 3511. [Classes 122 (i) and 122 (v)] A scraper, piston or junk ring assembly for pistons or sleeve valves with a groove built up of at least two separate parts A, B comprises one or more split rings with two separately-formed washer-like members J, K between the flat sides of the groove and the adjacent faces of the rings. One form, Fig. 3, comprises a pair of split rings C, D with a backing member G and intermediate spring ring H. Members J, K, may be riveted to the backing G, or they may have peripheral flanges overlapping behind the backing G, which may be solid or split. Members J, K may interlock by an extension K<2> with bead K<3> sprung over the rounded edge J<2> of member J. Alternatively, Fig. 7, members J, K have peripheral flanges J<1>, K<1> sprung over ribs G<1> on the backing G. The scraper may consist of a single split ring C<1>. The parts A, B may consist of a cylinder and its crank-case.
Patent GB-272133-A (GB)
Title: Improvements relating to trousers presses
IPC: A47G25/72
Filed: 1927-02-08
Abstract: 272,133. Sommerlad, H. Feb. 8, 1927. Trouser presses.-In a trousers press comprising a base or frame portion provided along opposite edges with pressure strips or battens, perssure is applied to the battens c by wedge-action turnbuttons g sliding upon ramps f on the battens. The longitudinal members b are secured to the ends of transverse members a, and the battens c are held in place by guide-blocks d through which pass bolts e carrying the buttons g. A spring k is arranged between the washer h against which the button g bears and a nut j on the holt e. Springs m may be provided between the members b and battens c. The members b are made in two parts connected by hinges n, and a transverse member o on one of the members has a curved edge p extending beyond the hinge axis so that after a garment has been placed in the press, the frame can be folded, as shown in Fig. 4, to stretch the garment. The members a may be formed with knuckle-joints so that the press can be folded for transport &c.
Patent GB-290333-A (GB)
Title: Signalising device for the transmission and reception of signals even in foggy weather or at night between two vessels or between a vessel and land
IPC: G01S1/68
Filed: 1927-02-08
Abstract: 290,333. Della Riccia, A. Feb. 8, 1927. Selective signalling apparatus.-In a device for signalling a ship's course and direction, in which the signals are modulated at frequencies characteristic of the direction of emission, the receiving instrument comprises a complete set of M resonators, corresponding to M directions. Thus, interrupted light signals may fall on a selenium cell, or like device which controls the energizing current of a multipole magnet D similar to that shown in Fig. 3, the current passing through the contacts 20, 21, or not, as desired. The appropriate armature 19 vibrates and thus indicates the course of the vessel. The armatures 19 at the receiving station are so arranged that the line joining the affected armature to the centre of the magnet shall be parallel to the course of the distant ship.
Patent GB-393903-A (GB)
Title: Apparatus for the electrical separation of suspended particles from gaseous fluids
IPC: B03C3/86
Filed: 1933-02-06
Abstract: <PICT:0393903/III/1> In electrical precipitation apparatus for use with hot gases, the discharge and/or collecting electrodes are connected to an electrically conducting support which is provided with cooling means at parts exposed to the hot gases.  In the arrangement shown, the discharge electrodes 2 are suspended from a support consisting of pipes 3 connected to an inlet 4 for a gaseous or liquid cooling medium.  The medium is discharged by outlet 7, which surrounds the inlet 4 and is insulated from the precipitation chamber.  When the cooling medium is conductive and the electrode support is connected to the supply of high-tension current, the whole cooling system must be insulated.
Patent GB-491650-A (GB)
Title: Improvements in and relating to electrical fuses
IPC: H01H85/54
Filed: 1937-02-06
Abstract: 491,650. Mechanical switches without quick action. DAVEY, L. E. W. C. N. Feb. 6, 1937, No. 3615 [Class 38 (v)] A cartridge d or fuse wire is mounted in a movable carrier blocl c adapted at all times to close a cavity in the base containing the live contacts b which are thus always inaccess ible. The carrier may be provided with a pivoted handle g and with a space for hold ing a reserve cartridge
Patent GB-354298-A (GB)
Title: Improvements in container closures and saucepan and like lids
IPC: B65D47/26
Filed: 1930-02-04
Abstract: 354,298. Saucepan &c. lids. FLOWER, R. and MANTON, L. M., 9, Milner Crescent, Wallstonecraft, near Sydney, Australia. Feb. 4, 1930, No. 3710. Convention date, Feb. 4, 1929. [Classes 66 and 125 (iii).] Relates to covers &c. for milk cans, saucepans, bottles, &c., of the type having perforations which can be obturated as desired by a rotatable cover-plate. According to the invention the cover-plate 13 is detachably sprung over the lid and engages a bead 35 by an inwardly curled edge 36. An open or removed portion 14 or perforations 17 can be turned into register with an opening 12 in the lid. The lid has a pendent flange 11 which embraces a container with a push-on fit. The flange may be stepped outwardly to fit on containers of two different sizes. Inward projections may also be provided in the flange to engage under a bead or thread on the neck of the container.
Patent GB-716570-A (GB)
Title: Web packaging apparatus
IPC: B65H23/032
Filed: 1952-02-13
Abstract: 716,570. Automatic position control systems. WINGFOOT CORPORATION. Feb. 13, 1952 [Sept. 6, 1951], No. 3793/52. Class 38(4) In Fig. 1 a web 4, unwound from a roll 2 supported in cradles 15 on a carriage 10 movable along guides 19 in a direction parallel to the lateral dimension of the web, is passed through guide bars 22, 23, 24 and a brusher 5, and is finally wound up on a driven roll 3. Variations in the lateral position of the edge 6 of the web are detected by a feeler 33 which operates a two-way and off mercury switch 35 controlling through relays L and R a reversible motor 37 which moves carriage 10, through gearing 40 and a sprocket chain 48 pinned to the carriage at 51, in the appropriate direction to correct lateral position of the web and hence ensure a truly cylindrical roll 3. Carriage 10 is provided with limit switches 56, 57. A roller 63 gravity and spring urged on to roll 2 operates a switch 80 when roll 2 is nearly empty to de-energize relay 86 and stop .the drive of roll 3 so that a new web may be attached to the end of the previous one before the latter has passed bars 22, 23, 24, Thereafter the drive of roll 3 may be controlled manually by operation of a lever 72. An electromagnetic brake 53 ensures stopping of motor 37 immediately it is de-energized.
Patent GB-972949-A (GB)
Title: Polymeric compositions
Inventor: FROW ERIC
IPC: C08G59/22
Filed: 1963-01-30
Abstract: Polyhaloethers e.g. glycerol-epichlorohydrin and water-epichlorohydrin adducts are stabilised by admixture with a minor proportion, i.e. less than 50% by weight of the total composition, of an organic epoxide containing the group <FORM:0972949/C1/1> and which is soluble in the polyhaloether. Epoxides used are (i) diepoxide derivatives of oxyalkylene glycols, (ii) epoxide derivatives of polyhaloethers and (iii) glycidyl ethers which contain the group <FORM:0972949/C1/2> wherein R1, R2 and R3, which may be the same or different, are hydrogen, alkyl, aryl or aralkyl and R4, R5, R6 and R7, which may be the same or different, are hydrogen or alkyl radicals, e.g. 2,2-di[4-(2,3 epoxy)propoxyphenyl] propane.ALSO:Polymeric compositions comprise a polyhaloether stabilized by admixture with a minor proportion of an organic epoxide containing the group <FORM:0972949/C3/1> and which is soluble in the polyhaloethers. The compositions may also be prepared by saponifying a polyhaloether to produce a minor proportion of an epoxide derivative thereof. Preferably the proportion of epoxide is such that the composition contains not less than one epoxide group per 10,000 polyhaloether halohydrin groups and not more than one epoxide group per 200 polyhaloether halohydrin groups. The polyhaloethers contain a plurality of hydroxy groups and are prepared by the addition of a haloepoxide to a nucleating agent which may be organic or inorganic containing two or more active hydrogen atoms, at least one of the latter being replaced by a hydroxyl terminated halosubstituted oxyalkylene chain.  Other polyhaloethers include copolymers of a haloepoxide with another haloepoxide or an alkylene oxide using a nucleating agent as above.  The polyhaloethers preferably have molecular weights of 250 to 10,000 and include glycerol-epichlorohydrin adducts and water-epichlorohydrin adducts. Epoxides used are (1) diepoxide derivatives of oxyalkylene glycols, (2) epoxide derivatives of polyhaloethers, and (3) glycidyl ethers which contain the group <FORM:0972949/C3/2> wherein R1, R2 and R3, which may be the same or different, are hydrogen, alkyl, aryl or aralkyl and R4, R5, R6 and R7, which may be the same or different, are hydrogen or alkyl radicals, e.g. 2, 2 di [4-(2, 3 epoxy) propoxyphenyl] propane. The compositions may be used as intermediates in the preparation of polyurethanes.
Patent GB-268921-A (GB)
Title: Improvements in dental wax knives
IPC: A61C13/00
Filed: 1926-02-11
Abstract: 268,921. Crook, W. Feb. 11, 1926. Dental instruments.-In a dental wax knife the usual knife blade 1 and spatula 2 are formed of copper or a suitable alloy and are separately mounted in grooves or slots in a heat insulating handle. The handle may be formed in two halves 3, 4, each grooved to receive the shanks of the members 1, 2, or a groove may be formed in one half only; alternatively, a one-piece vulcanite handle 6 may have separate recesses 7, 8 moulded therein to receive the shanks. The handle parts and the blades are secured together by rivets. A known construction is referred to wherein the blade 1 and spatula 2 are formed from a single piece of steel having strips of wood or the like rivetted to the central portion to form a handle.
Patent GB-521488-A (GB)
Title: Improvements in or relating to methods of and means for separating or recovering mercury from finely ground substances such as ores
IPC: C22B43/00
Filed: 1938-08-08
Abstract: 521,488. Mercury separation. WHITE, HUGHES, & CO., Ltd., and RAMSEY, B. W. Aug. 8, 1938, No. 3906. [Class 82 (ii)] Mercury in the free form is separated from a finely ground substance by blowing the substance in an air stream so as to strike one or more plates or elements of amalgamable metal (e.g., silver). The plates p may be arranged upwardly in one or more zig-zag formations (Fig. 2) the ground substance being introduced from the receptacle A into the air current from C. Alternatively the plates may be arranged so as to form a number of horizontal zig-zag paths side by side (Fig. 3) or superposed (Fig. 5). In Fig 6 the amalgamated plate takes the form of a drum G provided with squeegees S for removing the mercury deposited thereon and a collecting column D. In Fig. 9 the air stream traverses the passages 2, 3, 4, 6 and impinges upon the amalgamable plates p, p', p<SP>11</SP>. A supplementary air current from passage 5 serves to prevent ore falling to the bottom of the vertical passage 3 with the agglomerated mercury from plate p. The amalgamating elements may be wire networks, and in the final stage or stages a continuous band may be used, which moves in and out of the air stream and has scrapers provided on the outside. Specification 464,675 is referred to.
Patent GB-607573-A (GB)
Title: Improved process for the manufacture of artificial sponges from viscose and products resulting therefrom
IPC: C08J9/00
Filed: 1946-02-08
Abstract: Artificial sponge material is obtained by mixing viscose with fibrous material and soluble or fusible granular material produced by crushing the solid mass obtained on cooling a melted crystalline substance, and then solidifying the mixture and subsequently removing the granular material.  The crystalline substance may be the decahydrate of sodium sulphate which melts in its water of crystallization at 34 DEG  C. and solidifies en bloc when the temperature is again lowered.  The granular material obtained by crushing the solid agglomerate leads to the formation of pores of greater degree of uniformity in the viscose sponge material than that obtained by using a mass of crystals deposited from an aqueous solution.  Preferably, a pasty fusion is prepared, i.e. part only of the crystals is melted so that the melted portion welds the residual crystals together.  The hardness of the blocks p  may be increased by eliminating part of the water of hydration or by adding anhydrous salt to the mass.  The granular material may be sifted to obtain particles of uniform size.  The partially melted sodium sulphate decahydrate may be poured on to a drum which is cooled internally by circulation of brine at -1 DEG  C. Automatic control of the fusion may be obtained through a relay reacting to the power required to operate a stirrer or agitator dipping into the partially melted mass. The device for pouring the mass on to the drum may be similarly controlled.  In an example, 400 grams of the granular sodium sulphate material are mixed with 280 grams of viscose and 30 grams of fibres. The mass is moulded and the blocks are coagulated by a solution of sodium sulphate at 95 DEG  C.
Patent GB-595371-A (GB)
Title: Attachment for photographic cameras
IPC: G03B13/20
Filed: 1946-03-15
Abstract: 595,371. Lens mountings. MONTGOMERY, G. B. March 15, 1946, No. 4069/45. [Class 98 (i)] An adaptor for attaching objectives sold under the Registered Trade Mark " Contax " equipped with a bayonet-type fitting to cameras sold under the Registered Trade Mark " Leica " having an internally screw-threaded flange for the attachment of their own objectives and for adapting the coupled range-finder equipment of the camera to operate with the substitute objective, comprises (i) a coupling sleeve 1 which is screw-threaded externally at its rear end 2 to fit the lens-receiving flange on the camera, and which carries external projections 3 at its forward end to engage the bayonet catch 4 of the substitute lens mount, and a locating shoulder near the rear end which abuts against the front of the flange, and (ii) an inner sleeve 7, 7A free to rotate in the coupling sleeve but restrained from axial motion by a shoulder thereon held against a shoulder 8 on the coupling sleeve by a ring 9 secured therein, the end 7A of the inner sleeve projecting into the camera body and having a cam surface 10 engaged by the roller 11 of the camera range - finding gear. Focusing is achieved by rotating an external sleeve on the substitute objective, which sleeve engages a spring-loaded sleeve carrying at its inner end dogs 14 adapted to engage dogs 13 on the inner sleeve 7, thus causing this to rotate in step with the focusing sleeve and actuating through the cam 10 the range-finding gear on the camera. U.S.A. Specification 2,041,633 is referred to.