baber/WOPTO huggingface dataset:
Patent GB-589662-A (GB)
Title: Improvements in or relating to the production of sulphamic acid
IPC: C01B21/093
Filed: 1944-11-13
Abstract: A process for the manufacture of sulphamic acid from urea, sulphuric acid and sulphur trioxide comprises effecting the reaction between the reactants under conditions such that no substantial continuous body of liquid is present and while the reaction mixture is in film contact with a temperature controlled surface, e.g., one or more revolving drums, hollow rollers, or endless belts.  The reactants may be (a) added to grinding zones of high speed grinding mills wherein the grinding faces are supplied with cooling means, (b) coated on separate revolving drums provided with cooling means, the reaction being effected at their line of contact, and the material being scraped off being, if required, further mixed with cooling, (c) premixed with adequate cooling and fed into the line of apposition of two revolving drums, or (d) added to a temperature-controlled mass of finely divided solid, e.g., dry pulverulent sulphamic acid crystals or unreacted urea crystals, which may also be used as diluents.  The reactants are employed in substantially stoichiometric proportions and the reaction is effected between 150 DEG  and 250 DEG  F. Specification 576,739 is referred to.  The Provisional Specification describes temperature control by the use of internally cooled mixer arms or water-jacketed walls of a mixer. or by causing the liquid components to film over or to be otherwise dispersed upon the surface of a suitably temperature controlled solid in which case a dough or ribbon type mixer may be used.  Reference is also made to the conversion of sulphamic acid to its salts, e.g., ammonium sulphamate.
Patent GB-260387-A (GB)
Title: Improvements in and relating to evaporators
IPC: B01D1/02
Filed: 1925-09-08
Abstract: 260,387. Hiller, H. Sept. 8, 1925. Bulk evaporators. -An evaporator of the kind described in Specification 168,415 heated by coils arranged in parallel planes is provided with two groups of coils 5, 6 attached at one end to a common chamber 3, and at the other end to separate chambers 4. When the chambers 4 are used as steaminlet chambers separate sources of steam mav be used for each group. The inlet and drainage chambers may be divided by horizontal partitions so that separate supplies of steam may be passed into parts of each group. Separate, doors cover the openings leading to each group of coils.
Patent GB-1347139-A (GB)
Title: Photoelectrophoretic imaging
IPC: G03G17/04
Filed: 1971-04-19
Abstract: 1347139 Photo-electrophoretic imaging XEROX CORP 19 April 1971 [27 Feb 1970] 22494/71 Heading G2H In a registered multi-colour photo-electrophoretic imaging process, the use of impure cyan and magenta pigments is compensated for, by removing magenta pigment from the green component image in the corresponding red component image areas and by removing yellow pigment from the blue component image in the corresponding red/green component image areas, by means of the formation of a red and red/green component charge image respectively. The charge image may be applied to the blocking electrode, to the imaging pigment layer, or an insulating layer between the pigment layer and the injecting electrode. In the first case, the blocking electrode may be photoconductive or insulative. The electrodes may each be in the form of a flat plate or roller. As shown, during the formation of the magenta component image (for example) on an injecting electrode in the form of an earthed plate 5 using a blocking electrode in the form of a roller 9 to which a potential is applied, a registered red component charge image of the same polarity is formed on roller 9 by use of a corona device 16 and an exposure device 22. The resulting image is transferred from plate 5 in known manner.
Patent GB-1116971-A (GB)
Title: Method for producing and renewing the surface layer of a wiping cylinder in single-colour or multi-colour steel engraving printing machines
IPC: B41F9/10
Filed: 1965-05-27
Abstract: 1,116,971. Coated rollers; coating apparatus. G. GIORI. 27 May, 1965 [18 June, 1964; 4 May, 1965], No. 22531/65. Headings B2K and B2L. [Also in Division B6] A wiping cylinder for an engraved-plate printing machine is produced by applying to a rubber-covered roller a number of layers of synthetic plastic material. If an aqueous solution is to be used for cleaning the wiping cylinder, the synthetic plastic used is water insoluble and two mixtures A, B, are employed. Mixture A which is used for the first layer consists of polyvinyl chloride, dioctylthalate tricresylphosphate and a stabiliser. Mixture B which must be employed for the outer layer and may be used for intermediate layers contains the same substances as layer A plus dioctyladipat, calcium carbonate and graphite. If an organic cleaning solvent such as trichlorethylene is used in the machine, water soluble. mixtures A, B of three synthetic resins, each comprising polyvinyl alcohol partially saponified and containing acetyl groups, are employed, with additions of ethyl alcohol and glycerine. The watersoluble mixture B contains the same substances as the water-soluble mixture A plus calcium carbonate and/or graphite and tannic acid. Before the layers are put on, the rubber covering is roughened, and covered with gauze. A layer of mixture A is then applied whilst the wiping cylinder is pressed against a fixed cylinder, and the excess is removed by a scraper blade. Coating apparatus. To apply the succeeding layers the cylinder 1 is mounted on a shaft and rotated clockwise, Fig. 1. Adjacent to the cylinder is a coating device comprising converging plates 8, 9, end plates 7 and a removable top 15, the device being pivoted at 10 to a support 13. With the device supported by an abutment 14, it is adjusted by a vernier screw 11 so that the upper edge 8a of the plate 8, or a blade attached to the edge, is positioned near to the cylinder I to form a scraper. A quantity 5 of the heated plastic material is placed on the cover 15 so that as the cylinder 1 rotates it is coated with the material to a thickness determined by the screw adjustment 11. A heating device 17 is provided to speed up the drying and hardening of the coating. Beneath the cylinder is a water bath 16 which, in the case of a water-insoluble coating can be raised until the cylinder is partly immersed therein to expedite subsequent cooling of the coating. Renovating. If the surface of a cylinder becomes worn, the outer layer, if it is water soluble, is first removed by mounting the cylinder in the coating apparatus, and raising the 'bath 16 so that the cylinder is partly immersed therein. The lid 15 is taken off, and the scraper 8a removes the layer, the material flowing out of an opening 8b, for further use. In the case of a water-insoluble coating, the outer layer is removed mechanically. A new outer layer is then applied. The apparatus described forms the subject matter of Specification 1,116,971.
Patent GB-672802-A (GB)
Title: An optical rear projection screen unit
Inventor: WILSON PHILIP
IPC: G03B21/62
Filed: 1949-08-31
Abstract: 672,802. Optical projection screens. MANCHESTER, LORD MAYOR, ALDERMAN, and CITIZENS OF THE CITY OF. Aug. 29, 1950 [Aug. 31, 1949], No. 22552/49. Class 97 (i). A rear projection unit comprises a rigid rear frame 1 carrying a mirror 2, a rigid front frame 3 carrying a translucent screen 4 and foldable spacing members between the frames so that the unit can be folded flat or opened to at least two different positions with the frames inclined, means being provided for positive location of the frames in any such position. The frames may be connected by pairs of pivoted links 5 and 51 pivoted to the frames at 6 and to slidable collars 7. Links 9 and 10 determine the relative positions of the frames, the former having alternative holes for engagement with a fixing stud. The projector is supported on a platform 16 on a leg 17. Hinged doors 11, 12 are provided in front of the screen. For daylight use these support a hood which also covers the space between the frames.
Patent GB-465703-A (GB)
Title: Improvements in or relating to devices for controlling wireless receiving sets
IPC: G05G9/047
Filed: 1936-08-17
Abstract: 465,703. Wireless receiving-apparatus. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. Aug. 17, 1936, No. 22613. Convention date, Aug. 19, 1935. [Class 40 (v)] Various controlling operations of a wireless receiver such as tuning, volume, &c., may be effected by a single knob 1 secured to a shaft 2 which is rotatable to effect one adjustment and also is capable of lateral movement in such a way as to occupy two or more positions within a cone in space, having its apex at a point of the shaft 2, and is also coupled to adjusting elements of the set to perform at least two controlling operations independently. Rotation of the shaft 2 is transmitted to the tuning shaft 5 through a universal joint 4, while a member 6, loosely mounted on the shaft 2, has two extensions at right angles to each other (of which one only is shown) which extensions have slots engaging levers 7 pivoted at 15 and actuating the volume or other control through a Bowden cable 21, 22. The opening in the receiver panel 28 is closed by a hemispherical member 26, the lateral control movements being friction-loaded by felt insets 27. Thus lateral movement of the knob 1 to left or right will operate the lever 7, movement in the sense at right-angles thereto operating the second lever which is not shown. In any position, rotation of the knob will vary tuning. In a modification, the levers 7 are dispensed with, the member 6 actuating the controls through direct push-pull action, Fig. 3 (not shown).
Patent GB-169871-A (GB)
Title: Improvements in acetylene lamp
IPC: C10H1/00
Filed: 1920-07-30
Abstract: 169,871. Groold, L. W., (Justrite Manufacturing Co.). July 30. 1920. Drip-feed apparatus; charges, stirring-The water-feed tube 21 of an acetylene generator, is prolonged to project into the carbide, and the valve-head 30 is provided, immediately below the valve-seating 31, with projections 33 which when the valve is turned agitate and break up the sludge surrounding the valve and so open up fresh passages for the water. Above the seating the head is provided with projections 34 which maintain the valve and its seating in axial a'ignment, and below the seating there may be formed a flat surface 32 in order to project the water outwardlv into the carbide. The valve-head is conveniently screw-threaded to the valve-stem 23. The gas on its way to the burner 18 is filtered by passage through felt or like material 19 supported by a washer 20.
Patent GB-1022612-A (GB)
Title: Improvements in or relating to display devices
Inventor: POWELL HAROLD
IPC: G09F11/23
Filed: 1961-06-22
Abstract: 1,022,612. Moving advertising and display apparatus. PARTRIDGE & LOVE Ltd. June 21, 1962 [June 22, 1961], No. 22713/61. Heading G5C. A display device comprises a plate with one or more magnets mounted on guides to rotate behind the plate so that objects on the front surface of the plate move with movement of the magnetic field. A display device has two magnets 3, 4 mounted on aluminium or brass guide bars so that when this assembly is rotated by an electric motor driving spindle 8 behind the face-plate (not shown) on the device the magnets slide backwards and forwards on the guide bars 5 varying the position of the magnetic field over the face-plate so that one or more objects such as a butterfly, having ferromagnetic wire attached moves over the surface of the face plate.
Patent GB-1467358-A (GB)
Title: Mould-closing and -clamping units
IPC: B29C45/66
Filed: 1974-05-21
Abstract: 1467358 Injection mould closing and clamping NETSTAL MASCHINEN AG 21 May 1974 [23 May 1973] 22752/74 Addition to 1340200 Heading B5A The movable platen (8), Fig. 1 (not shown), of an injection moulding press is displaceable over a mould closing distance by means of the thrust of a crank connection 6b, actuated by a rotary piston drive 7 within a housing 5a, and a mould clamping force is applied to the platen over a smaller distance (M1), by a double-acting differential linear piston 4b, which acts by displacing the housing 5a with a thrust which is coaxial with that of the crank connection 6b. The modification of the present Specification comprises oppositely acting spring means 26 which acts coaxially with the thrust of the piston 4b, to balance the housing 5a to a rest position X-X when the crank and piston thrusts are not acting upon it. The means 26 comprises a laminated spring assembly acting, within the piston 4b, between one end of a bush 27 carried by the piston 4b, and a collar 28 of a rod 25 which is adjustably secured to the housing 4a at a thread 32, the piston 4b being axially slidably and non- rotatively engaged with the rod 25 at a key 29. Adjustment of the rod 25 at the thread 32 permits the rest position of the movable platen to be varied, and the adjustment is effected by a gear 31 whose internal thread engages the thread 32 and which is rotated by a pinion 33 which can be locked in position by a nut (35), Fig. 3 (not shown). The rod 25 carries a valve 37 which acts to shut off the pressure medium displacing the piston 4b at the end of the clamping stroke. In the event of the piston 4b being displaced a distance greater than the clamping stroke, the valve 37 is actuated to vent the pressure medium, by movement of a rod 36 which is attached to piston 4b and passes through the rod 25. The crank drive 6b is actuated by the piston 7 through a continuously adjustable cycle.
Patent GB-316773-A (GB)
Title: Improvements in garments having bosom sections of the shirt front type
IPC: A41B1/10
Filed: 1928-08-07
Abstract: 316,773. James, L. Aug. 7, 1928. Shirts.-In the manufacture of garments having bosom sections of the shirt front type, removable sections C, D are provided which at the side of the shirt are seamed at 10 between the body section 8, Fig. 4, and the front section B and at the fly opening are wrapped round by the front section and seamed at 13. By unpicking the seams, the bosom sections may be removed.
Patent GB-403340-A (GB)
Title: Contact member for use in electric signalling systems for rail vehicles
IPC: B61L3/10
Filed: 1933-08-15
Abstract: 403,340. Electric collectors for rail vehicles. MICHELIN ET CIE, Clermont Ferrand, Puy-de-Dome, France. Aug. 15, 1933, No. 22814. Convention date, Sept. 10, 1932. [Class 104 (iii).] A collector for rail vehicles for use in an electric signalling system comprises a number of plates A assembled as a unit in a frame E and rotatably mounted on trunnions K in a stirrup H which has a tubular portion M slidably mounted in the vehicle frame. The collector is of greater length than width, and bears with its lower edge on the conductor rail. It is pressed down by resilient blocks mounted in brackets C on the frame E which are vertically adjustable by means of screws D. The frame E carries at each end an inclined nose F to facilitate passage of the collector over points C, and at each side a shoe G which engages the rail at switch points, crossings &c. The plates are connected by wires &c. N to a collecting bar O, which carries depending fingers Q for separating the plates. In another form, the plates decrease in length from the centre plate outwards and have short oblique flanges at the ends.
Patent GB-1522469-A (GB)
Title: Steam iron
Inventor: HAMMER URS
IPC: D06F75/18
Filed: 1977-05-31
Abstract: 1522469 Steam irons JURA ELEKTROAPPARATE - FABRIKEN L HENZIROHS AG 31 May 1977 [21 July 1976] 22901/77 Heading D1A In a steam iron comprising a water reservoir 1 in which a pump 6 having a piston rod 8 is disposed, and a forward-pointing spray nozzle 13 fed by the pump 6, a water supply channel 11 communicating with both the pump 6 and the nozzle 13 passes through the piston rod 8, the nozzle 13 being secured to the piston rod 8 so as to move up and down therewith. As shown, the reservoir 1 communicates with a steam chamber 5 in a heatable sole plate 4 by a valve port 3 closable by a valve stem 2. The pump 6 comprises a piston 7, the rod 8, a cylinder 9 and a check valve 10. The nozzle 13 comprises a coupling piece 23 secured to the rod 8, and a hollow nozzle body 24 having an axially movable valve piece 25 therewithin. A spring 14 urges the rod 8 upwardly against a stop button 17 an annular shoulder 18 of which engages under a fixed stop surface 19. The stem 2 is secured to the button 17. In use, up-and-down movements of the button 17 are transmitted via the rod 8 to the pump 6 so that, during up movement, water is drawn from the reservoir 1 through the valve 10 to produce as underpressure in the channel 11 so that the valve piece 25 blocks the nozzle 13. During down movement, the water trapped in the cylinder 9 by the check valve is pushed up the channel 11 into the nozzle 13 and is sprayed out since the resultant overpressure causes the valve piece 25 to free the nozzle 13. The movements of the button 17 cause the stem 2 to scrape mineral deposits from the inside of the port 3. For dry iron, the button 17 is depressed and pivoted until the shoulder 18 engages under an edge 20.
Patent GB-703376-A (GB)
Title: Improvements in or relating to apparatus for opening and cleaning fibrous material
IPC: D01G9/06
Filed: 1951-10-02
Abstract: 703,376. Opening fibrous material. BISINGER, B. Oct. 2, 1951, No. 22906/51. Class 120(1) Apparatus for opening and ' cleaning fibrous material comprises a feed plate and feed roller for feeding the material to an opening cylinder, and a plurality of supply, ducts for sucking air on to the surface of the cylinder on the side facing the feed plate, the cylinder being provided with needles or pins extending radially from its surface. As shown, air is supplied beneath the feed table 20 through a number: of adjacent ducts 21 separated by partitions, the feed opening of each duct being controlled by a pivoted flap 22. Air ducts 23 opening behind the grid bars 19 are similarly controlled by flaps 24. The forward end of the feed table 20. is extended downwardly to form a beak. the space between the beak and cylinder 8 diminishing in the direction of movement of the cylinder; the surface of the beak which faces the cylinder is provided with channels 23 of triangular section which increase in depth in the downward direction so that the bases of the channels lie on an arc concentric with the cylinder. The radiallydisposed needles on the cylinder have their ends flattened off at the front.
Patent GB-1004293-A (GB)
Title: Electric contact member
IPC: H01H1/26
Filed: 1962-06-14
Abstract: 1,004,293. Contact-members for switches. W. HOLZER. June 14, 1962 [June 27, 1961], No. 22912/62. Heading H2B. A contact member stamped from resilient material has a connector portion 8 and a contact making portion 9, connected by an intermediate portion 11 and a connecting piece 12 which has been twisted through 90 degrees relative thereto to make portion 11 resilient, the contact member being held edgewise between plates 1, 2 having apertures 3, 4, and retained by projections 7. A rotating cam 19 actuates the contact member in the direction in which piece 12 is most springy. The end 9 of the contact member carrying the contact 10 is effectively twisted through 90 degrees relative to portion 11, Figs 1, 2, or may be actually twisted through 90 degrees (Fig. 3, not shown). The stamping may be formed by portions which are alternately twisted 90 degrees to one another and the 90 degrees twisted portions may have a reduced cross-sectional area formed by forging or stamping. The resilient portion 11 may be formed by two adjoining connecting pieces 12 which are twisted through 45 degrees to one another and to the respectively adjoining conector portion 8 and contact-making portion 9. An assembly of juxtaposed contact members has the 90 degrees twisted portions offset from one another in staggered relationship, while intermediate walls separate the contact members at the connecting-pieces 12. The contact member may be pre-tensioned to lie against the plate 2 (Fig. 2, not shown).
Patent GB-299563-A (GB)
Title: Improvements in or relating to pneumatic cushions
IPC: A47C27/08
Filed: 1927-09-01
Abstract: 299,563. Macintosh & Co., Ltd., C., and Warren, F. W. Sept. 1, 1927. Cushions. - A cushion consists of two containers joined along one side of each, or of a single container subdivided by an airtight partition e, having one small hole b in the dividing wall whereby the separate sections intercommunicate. Specification 245,881 is referred to.
Patent GB-230380-A (GB)
Title: Improvements in harps
IPC: G10D1/04
Filed: 1924-09-29
Abstract: 230,380. Maendler, K. March 17, 1924, [Convention date]. Harps. - Chromatic strings are arranged in one plane, or adjacent parallel planes and are spaced similarly to the kevs of a pianoforte keyboard, i.e. equidistantly except for the gaps at the diatonic semitones as shown, the diatonic strings being equidistant from one another. The strings corresponding to the black notes of the keyboard may be differently coloured. At the lower end the strings are attached to a plate 13 extending over the soundbox 14.
Patent GB-800867-A (GB)
Title: Thermostatically controlled gas valves
Inventor: BUCK CHRISTOPHER HERN
IPC: G05D23/02
Filed: 1955-08-10
Abstract: 800,867. Valves. RADIATION, Ltd. June 21, 1956 [Aug. 10, 1955], No. 23022/55. Class 135. A gas valve comprises a body a with an inlet b and an outlet c intermediate which is a closure member f carried by a pre-stressed blade spring e; the latter, which supports a permanent magnet g adjacent a non-magnetic diaphragm h attached to the body a, is responsive to the temperature of the water or air heated by the gas via a rod and tube thermostat, the stem j of which abuts the spring e between its anchored end and the magnet g. Externally of the body a is a bi-metallic strip k having a soft-iron part m on its free end disposed near the diaphragm h whilst a pilot burner n supplied with gas from the body a heats the strip k directly or through a metal piece o secured to the strip k. The positions of the magnet and iron part may be interchanged. To open the closure f the burner n is ignited and the consequent deformation of the strip k moves the iron part m into contact with the diaphragm h, the reduced distance between the part m and magnet g causing the latter to move toward the diaphragm and so unseat the closure f with a snap action. Thereafter the position of the closure is controlled solely by the thermostat.