baber/WOPTO huggingface dataset:
Patent GB-919812-A (GB)
Title: Diazotype material
IPC: G03C1/54
Filed: 1961-02-28
Abstract: 919,812. Diazotype material. CHEMISCHE FABRIEK L. VAN DER GRINTEN N.V. Feb. 28, 1961 [March 8, 1960], No. 7359/61. Addition to 919,037. Class 98 (2). A one-component diazotype paper has a coating of a mixture of diazonium salts, 60 to 95 mol. % of this mixture is a salt or a mixture of salts of formula wherein X is an anion, R 1  and R 2  are methyl or ethyl groups or if R 1  is methyl R 2  may be cyclohexyl, and Ar is a phenyl radical which may have up to two substituents, and 40 to 5 mol. % of this mixture is a biphenyl diazonium salt which contains in the nucleus with the diazonium group in the 4 position, two alkoxy groups in positions 2 and 5 with at most 3 carbon atoms each, or a 1-phenylmercapto 2,5-dialkoxybenzene 4-diazonium salt in which the phenylmercapto group is substituted and the alkoxy groups contain at most 3 carbon atoms each. In the diazonium salts which form the major component, the phenoxy group may contain halogen atoms, alkoxy, methyl and mono- and di-alkyl amino groups as substituents. In the diazonium salts which form the minor component, the phenyl group which does not contain the diazonium group may have halogen atoms, alkoxy, phenoxy, alkyl and phenyl groups as substituents. Finely divided particles of silica, synthetic resin, or rice starch may be used as fillers for the diazotype paper. The developer is a weakly acid, buffered solution of phloroglycinol which may contain acetoacetanilide or resorcinol as additional couplers, an alkyl or aryl sodium sulphonate and an organic acid. Specifications 726,755 and 759,045 also are referred to.
Patent GB-579474-A (GB)
Title: Improvements in or relating to means for fixing liners, inserts and the like
IPC: B21J9/08
Filed: 1944-04-20
Abstract: 579,474. Electric heating. OMES, Ltd. and MORA, G. April 20, 1944, No. 7364. [Class 39 (iii)] [Also in Group XXII] Liners are held in recesses in the electrode jaws of an electric forging or welding machine by overlapping dogs at least one of which is slidable into and out of holding position and is secured by means tending to force it inwards to holding position. The jaws 27, 30 of an electric upsetting machine have recesses 90 to receive interchangeable liners 81, these being in turn provided with renewable work-engaging members 83 secured by screws 91. The liners are secured in their recesses at one side by overlapping plates 93 pressed into the jaws and liners and secured by flush screws 94. At the other side dogs 95 also recessed into the jaws and liners are slidably held by flush screws 96 in slots 97 and are urged into securing position by nuts 99 on studs.
Patent GB-566870-A (GB)
Title: Improvements in dentures
IPC: A61C13/00
Filed: 1943-05-10
Abstract: 566,870. Dentures. DAHL, S. G. A. May 10, 1943, No. 7387. Convention date, May 18, 1942. [Class 81 (ii)] Dentures comprising a body of synthetic resin &c. 1, to which the teeth 2 are secured, are provided with ball-shaped projections 3 which engage in recesses of a corresponding shape formed by surgical incisions in the gum and healing about the projections so to hold the denture to the jaw. The projections 3 are preferably pressed from stainless steel strips, the projections being hollow and the tongue portions thereof being moulded into the denture body. The surgical incisions in the gum are preferably cross-shaped and heal about the projections in from 8 to 10 days, during which the dentures must be worn. Thereafter, the dentures may be removed and replaced as desired.
Patent GB-272610-A (GB)
Title: Improvements in and relating to the treatment of metal surfaces
IPC: C23C8/08
Filed: 1926-03-17
Abstract: 272,610. Smith, W. March 17, 1926. Coating.-In a, process for treating surfaces of metallic articles, &c., a coating of the sulphide of the metal forming the surface is produced by subjecting the heated articles, &c., to the action of carbon bisulphide. The articles, &c., if not having a film of oxide, are first subjected, at a temperature of above 600‹C., to the action of air for a few seconds and then with carbon bisulphide vapour for about 10 minutes when at a temperature of about 700 degrees C. Aluminium or magnesium articles or metals coated therewith may be treated by this process.
Patent GB-288257-A (GB)
Title: Improvements in and relating to the reproduction of pictures and the like in picture telegraphy
IPC: H04N1/23
Filed: 1928-03-12
Abstract: 288,257. Lorenz Akt.-Ges., C. April 5, 1927, [Contention date]. Copying-telegraphs. - In a copying-telegraph receiver a coloured paper coated with a thin film of wax is used as a record paper. The film is scraped off the paper by a magnetic system actuated by the received current.
Patent GB-749994-A (GB)
Title: Improvements relating to snap-action electric switches
IPC: H01H5/18
Filed: 1952-03-24
Abstract: 749,994. Snap-action switches; switch contacts. YOUNG S. G. June 24, 1953 [March 24, 1952], No. 7581/52. Class 38(5) The movable contacts are mounted on a part 2 of a snapper, which may be that of Specification 594,144 [Group XIX], the part 2 being connected to the main part 1 by a necked portion 3 of curved or grooved cross-section. The contacts are thus made self-aligning with respect to a pair of fixed contacts (not shown) arranged to be bridged thereby, since the parts 1 2 can twist relatively to each other about the axis 4. Movement about an axis 5, which would tend to reduce contact pressure, is resisted by the cross-sectional shape of part 3. In a modification (Fig. 3 not shown), the neck 3 is adjacent the fixing end 7 of the snapper. Specifications 654,693, 654,715, 654,716 and 749,305 also are referred to.
Patent GB-639838-A (GB)
Title: Improvements relating to the control of electric blankets
IPC: H05B3/34
Filed: 1947-03-20
Abstract: 639,838. Automatic temperature control systems. BRITISH THOMSON-HOUSTON CO., Ltd. March 20, 1947, No. 7704. Convention date, March 21, 1946. [Class 38 (iv)] A flexible electric blanket is provided with a pair of resistance heaters having different temperature coefficients and forming with two external impedances a bridge, the output of which controls the energization of a control device which disables the bridge when the blanket temperature reaches a predetermined high value and establishes a second impedance bridge also controlling the energization of the control device so that the latter oscillates between two conditions until a predetermined low temperature is reached. Fig. 2 shows an electric blanket 1, heated by elements 3, 4, having different positive temperature coefficients, connected with' resistors 8, 9, external to the blanket, to form a bridge circuit across an A.C. source 5, 6. At a predetermined blanket temperature unbalance of the bridge due to change in resistance of elements 3, 4 influences the grid-cathode voltage of a discharge-type tetrode valve 17 so as to render the valve non- conducting thereby de-energizing a relay 15 to reduce heating of the blanket substantially to zero by the insertion of high resistances 23, 24. These resistances, which are external to the blanket, have temperature coefficients differing in an opposite sense to the temperature coefficients of the heating elements with which they are respectively in series and change in their resistance resulting from current flow through them restores balance of the bridge sufficiently to energize relay 15 which then operates intermittently until the blanket temperature is below the predetermined value. Blanket temperature is thus maintained constant at a value determined by the setting of a rheostat 9b. Specification 632,943 is referred to.
Patent GB-1166852-A (GB)
Title: Improvements in or relating to Bracket Structures
IPC: A47B96/06
Filed: 1966-02-17
Abstract: 1,166,852. Brackets. VERSATILE FITTINGS (W.H.S.) Ltd. and D. H. PEACOCK. 17 Feb., 1967 [17 Feb., 1966], No. 7819/67. Divided out of 1,166,851. Heading A4B. The subject matter is identical with that associated with Figs. 1-3 of Specification 1166851 the main claim highlights the necessary provision of grooves (30) and projections (31) which interengage to hold the T-section locating member (17) on the support member (10).
Patent GB-267982-A (GB)
Title: Improvements in polyphase electrical condensers
IPC: H01G4/30
Filed: 1927-03-21
Abstract: 267,982. Dubilier Condenser Co. (1925), Ltd., (Assignees of Neufeldt & Kuhnke Betriebsges.). March 19, 1926, [Convention date]. Condensers, polyphase, for phase compensation and protection against surges, comprise aluminium or tin foils preferably arranged as a regular n-polygon, where n is the number of phases. The foils each have a connecting tag and are arranged 'to lie exactly one over the other. Fig. 1 shows by way of example a 3-phase condenser wherein the plates are connected with the several truncated covers E<1> - - E<3> and shaped according to the dotted line F leading to the corner E<2>. The paper insulating sheets are shaped identically with the cover P. The foils may be fixed at the corners, as shown in Fig. 1<a>, by providing metal pieces m<1> - - m<6>, of which m<6> is flush with the cover, the metal pieces being clamped by screws s<1>, s<2> and nuts G. For facilitating assembly of the tuminals and several condensers to a battery, registering holes b<1> - b<3> are provided. In another form, circular plates are used and cover plates (Fig. 2a) are used, the plates being provided with spaces to receive the terminals and apertures o<1>, o<2> to receive compressing screws. The condensers are vacuum treated, impregnated with liquid insulating material which is solid at working temperature (for instance, paraffin wax at 70‹), and then compresed The Specification also shows how a condenser can be made so as to be adaptable for any number of phases. Specificaton 267.983 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a form wherein the condenser is arranged as a square with terminals along three sides or at their truncated corners, the fourth side or corner being left blank. This subject-matter does not appear in the Specification as accepted.
Patent GB-559300-A (GB)
Title: Improvements in and relating to spirit filters
IPC: B01D37/00
Filed: 1942-06-09
Abstract: 559,300. Filters. COURTNEY, J. R. June 9, 1942, No. 7839. [Class 46] The filter bags in a spirit filter, used in conjunction with dry cleaning plant and of the kind comprising a chamber 10 with an inlet pipe 11 and a suction pipe 12 in which are mounted tubes 13<SP>1</SP> carrying reticulated frames 13 enclosed in textile bags, are cleaned by partially emptying the chamber and gasifying a portion of the remaining spirit so that the gases rise past the bags, the gases being led by a pipe 15 to a condenser for re-use. The foreign matter removed from the bags drops into a sump 10<SP>1</SP> provided with draining means (not shown). The spirit may be gasefied by passing steam through pipes 14.
Patent GB-853699-A (GB)
Title: Process and means for producing pressboard, paperboard, vulcanized fibreboard and the like
IPC: D21J1/00
Filed: 1959-03-06
Abstract: 853,699. Forming multiple-ply fibreboard. HAKANSSON, O. R. March 6, 1959 [March 7, 1958], No. 7897/59. Class 96. In the production of pressboard, paper-board, vulcanized fibreboard &c., combined webs from e.g. a Fourdrinier machine 1 and a cylinder machine 2 are couched, and are carried together on a travelling wetfelt 5, the delivery end of which is oscillated by a reciprocated roller 9 so as to lay a succession of folds of the webs on to the upper reach of a stationary endless belt III, each fold being pressed down by a plate or roller 16 to build up a thick wet board 12 which, after a required number of oscillations of the end of the felt 5 is severed, and passed through an enclosure 15 heated by steam to 60‹ to 100‹ C., and then to an hydraulic press 35, 36 &c. Instead of oscillating part of the wet felt 5, the belt III may be mounted on a reciprocating carriage. The pulp webs may be delivered from the felt 5 faster than the relative reciprocation, so that a creped effect is obtained.
Patent GB-447222-A (GB)
Title: An apparatus to indicate the speed of a motor vehicle
IPC: G01P1/10
Filed: 1935-03-14
Abstract: 447,222. Speed-indicators. HOLT, G. G., Windyridge, Orange Tree Hill, Havering- atte-Bower, Essex. March 14, 1935, No. 7910. [Class 106 (iii)] A speed-warning device is adapted to communicate mechanical vibrations to the driver of a vehicle (or the attendant of a machine) to warn him that a particular speed has been reached. The vibratory device 1, which may be brought into action by a centrifugal governor device, may be fastened to the steering wheel 2, or mounted on the floor of the vehicle or the accelerator pedal, or on the driver's seat or the side of the vehicle adjacent the driver. The device 1 mav be vibrated electromagnetically or by cam means. As shown, it is connected to a battery B by means of an interrupter 4 and contacts 7 adapted to be closed by a sliding collar 6 displaced by a speedometer-driven centrifugal device. The interrupter 4 comprises an electromagnet 8 having an armature 9 mounted on a resilient blade 10 carrying a contact 11 adapted to engage a contact 12 on another blade 13, which is made more resilient than the blade 10 so that the latter tends to displace the blade 13. By adjusting screws 16, 18 carrying stop 15 and buffer 17, the periodicity of the interruption may be varied. Other forms of interrupter are described. The vibratory device 1 for transmitting vibrations to the driver may comprise an iron core 19 accommodating three coils 20, and a large armature 21 supported by resilient members 22 and fitted with rubber buffers 23.
Patent GB-484530-A (GB)
Title: Process and apparatus for the calcination of combustible slops resulting from the treatment with yeast and the distillation of beetroot, sugar cane, and molasses, or the residual liquors obtained from the desugarization of molasses of and kind for the purpose of recovering the resultant ash, and eliminating and objectionable odours
IPC: C01D7/30
Filed: 1937-03-18
Abstract: 484,530. Burning sugar &c. refuse. RAFFINERIE TIRLEMONTOISE SOC. ANON. March 18, 1937, No. 7979. Convention date, March 18, 1936. [Class 51 (i)] Waste liquors resulting from sugar making operations are burnt by injecting them through an atomizing nozzle 4 into a. previously-heated. combustion chamber 1. The solids burn while in suspension with hot air supplied through the nozzles 5<1>, and ash collects in the pit 6. The heat of combustion is used in a steam generator and the air preheater 10, and any dust carried off with the flue gases is collected in pits 9, 11 having double valve closures. The Specification as open to inspection under Sect. 91 also describes forms of furnace in which the conical lower part 5 is replaced by an inclined hearth or an inclined grid formed of hollow bars. This subject-matter does not appear in the Specification as accepted.
Patent GB-770901-A (GB)
Title: Improvements in or relating to building structures
Inventor: HARRISON DONALD DEX
IPC: E04C2/14
Filed: 1954-03-19
Abstract: 770,901. Building structures; beams. DEX (PREFABRICATIONS), Ltd. March 7, 1955 [March 19, 1954], No. 8077/54. Class 20(4) A building structure comprising a plurality of structural members has one or more members, e.g. beams 10, connected to another structural member or members, e.g. a pair of transverse beams 30, 31 by means of a I-section connecting member 20 secured by bolts 26 to the beams 10 and passing through circular holes 32 in the neutral axes of the beams 30, 31, the flanges of the member 20 engaging in grooves 12, 13 formed in the beams 10. The beams 30, 31 are themselves connected together by a connecting member 20 and bolts 26 as shown in Fig. 2. If the beams 10 are to be secured inclined to the beams 30, 31 the grooves 12, 13 are cut diagonally across the beam. When the connecting member 20 after passing through the holes in the beams 30, 31, is not connected to a beam 10 the free end of the member 20 is secured to the outer beam 30 or 31 by a capping plate and a hook bolt or by a plate and a wedge passing through a hole in the member 20. Where a beam 47 (Fig. 6) passes over a column 46 it may be connected thereto by a plate 45 which is bolted to the column 46 and has a circular hole 48 in,its upper end enabling a connecting member 20 to be threaded through it connecting the plate and the beam 47 together and a transverse beam as shown. Other transverse beams may be connected to the column by a member 20 threaded through a lower circular hole 49 in the plate 45. The plate 45 as shown is flat, but in a modification the upper and lower halves are at right angles to each other. Three or four ends of beams may be secured together with a space between them, the space being filled by a column or a block such as is shown in Fig. 8 which is provided with circular holes in such a manner as to allow the alternate passing through of the connecting members. The ends of columns may be connected together and adapted for attachment to horizontal beams as shown in Fig. 9. The meeting ends of the column parts 41 and 42 are shaped to have diagonally opposite pairs of legs 43 and 44, slots or grooves being cut across the legs to receive the flange of the connecting members .
Patent GB-572810-A (GB)
Title: Production of thioethers
Filed: 1943-05-21
Abstract: Thioethers containing more than four carbon atoms are prepared by reacting ethylene with hydrogen sulphide, methyl mercaptan or ethyl mercaptan, at a pressure of at least 500 atmospheres and a temperature of 120 DEG  C. to 200 DEG  C.  The thioethers produced are of the formula R-S-R1, wherein R and R1 are alkyl radicals and at least one of them contains more than two carbon atoms.  With ethylene and hydrogen sulphide the products are primarily products of the formula CH3CH2S(CH2-CH2)n-H where n is greater than unity and, in general, is from 2 to 6.  In place of the above sulphhydryl compounds, compounds may be used which, under the reaction conditions, yield these compounds, e.g. water-soluble hydrosulphides of the alkali and alkaline earth metals.  The reaction may be carried out in the presence or absence of solvents such as water and ethyl alcohol.  Catalysts such as the sulphides of copper, zinc, lead, nickel and iron, and also molecular oxygen may be used.  It is advantageous to employ a slightly acid medium such as water made acid with a non-oxidizing acid.  The thioethers are useful in the rubber, cosmetic and pharmaceutical industries; as solvents; and as intermediates in the production of sulphoxides, sulphones and sulphonium compounds which are useful as plasticizers, surface-active agents and textile assistants.  In examples: (1) ethylene and hydrogen sulphide are heated in a closed vessel containing water acidified with hydrochloric acid to a pH of 2.3, under a pressure of 850-940 atmospheres and at 198-201 DEG  C. for 10 hrs.  The reaction product is separated from the aqueous layer, dried and fractionally distilled, yielding diethyl sulphide, an intermediate thioether, butyl ethyl sulphide and a higher boiling thioether; (2) similar to (1), the pressure being 700-900 atmospheres and temperature 163-189 DEG  C.  The fractions boiling higher than diethyl sulphide, from a number of such runs after fractionation yield diethyl sulphide, butyl ethyl sulphide (identified by oxidation with hydrogen peroxide forming the corresponding sulphone), and ethane dithiol diethyl ether (identified similarly).
Patent GB-685899-A (GB)
Title: Control system for internal combustion engines
IPC: F02D1/00
Filed: 1951-04-09
Abstract: 685,899. Speed governors. GENERAL MOTORS CORPORATION. April 9, 1951 [April 22, 1950], No. 8136/51. Class 57 [Also in Group XXVII] A control system for an internal combustion engine includes a pedal 29 that controls the throttle 14 of the inlet to the blower B and also a rod 12 that varies the amount of fuel injected and in addition a diaphragm 90 that is subjected to the pressure adjacent the throttle 14 and moves the rod 12 to control the speed of the engine. The pedal 29 is connected to a lever 34 that is fixed to the shaft 27 which also carries a rotatable lever 26 that is connected by the rod 21 to the throttle 14 and is loaded by a spring 19. A projection 39 on the lever 26 is pressed against the lever 34 by a torsional spring 36 so that the lever 34 follows the movements of the lever 26. A cam 40 is fixed to the shaft 27 and engages a pin 51 to raise and lower a rod 46 connected to the bell crank 50 secured to the shaft 52 that also carries a lever 60 fitted with an adjustable spring 78. The diaphragm 90 is connected by a rod 94 to a lever 64 that engages a pin 74 on the rod 12; the lever 64 is loaded by a torsional spring 70 to move towards and engage the lever 60 and increase the amount of fuel injected. When pedal 29 is moved to close the throttle 14 to idling speed, the lever 60 is positioned relatively to the lever 64 so that the spring 78 is within the path of the additional arm 83 formed on the lever 64 so that when the pressure in the venturi 22 is reduced due to increased engine speed, the diaphragm 90 moves the lever 64 clockwise and the spring 78 provides additional loading to its movement to obtain a steady idling speed. When the pedal 29 is depressed to open the throttle 14, the spring 78 is moved from the path of the arm 83 and if the engine speed exceeds a maximum value, the diaphragm 90 acts against the loading spring 70 only to reduce the fuel supply.
Patent GB-663239-A (GB)
Title: Improvements in or relating to manufacture of chlorine dioxide
IPC: C01B11/02
Filed: 1949-03-25
Abstract: Chlorine dioxide is produced by reacting nitrogen dioxide or nitric oxide with a solid chlorate such as an alkali or alkaline earth metal chlorate, e.g. chlorates of sodium, calcium, or magnesium in the presence of moisture in amount at least equivalent to a relative humidity of 30 per cent at 25 DEG C.  The oxide of nitrogen may be diluted with at least 90 per cent by volume of the total gas of an inert gas, e.g. air, nitrogen, carbon dioxide, or oxygen.  Air may be subjected to an electrical discharge so that it contains less than 10 per cent oxidised nitrogen and the gas obtained passed through a tower containing granular or divided sodium chlorate.  Preferably, the chlorate is contained in several towers arranged in series and the gas is passed first through the tower containing most nearly exhausted chlorate and thence successively to the most recently charged tower.  The towers are countercurrently advanced as they become exhausted, replenished and reinserted at the end of the series. Specification 595,528 is referred to.
Patent GB-492442-A (GB)
Title: Improvements in or relating to television transmitting and similar apparatus
IPC: H01J29/43
Filed: 1937-03-20
Abstract: 492,442. Cathode-ray tubes. THOMSON, E. E., and MILLER, H. March 20, 1937, No. 8217. [Class 39 (i)] A cathode-ray television transmitting tube comprises an electrode adapted to be rendered light sensitive by deposition thereon of lightsensitizing material, and an additional electrode arranged so as to receive a deposit of light-sensitizing material during the initial deposition and to be heated to a high temperature without heating parts of the tube to a temperature at which deleterious gases are evolved, so as to liberate its deposited lightsensitizing material for further deposition on the light-sensitive electrode. In the tube shown, which is of the iconoscope type, the mosaic screen 4 (cut away) is formed from a mica sheet covered with silver evaporated from heated filaments 8 and aggregated. The additional electrode may be a ring, or, in the form shown, two nickel discs 11 which also receive a silver deposit. After oxidation of the silver, caesium is admitted to photo-sensitize the mosaic and is also deposited on electrodes 11. If, after testing or working, the mosaic is insufficiently sensitized, the electrodes 11 may be heated by induction to provide an additional supply of caesium. The filaments 8 and the electrodes 11 are supported on a mica framework 9, 10 which surrounds the window 6. The Provisional Specification refers also to apparatus similar to cathode-ray television transmitting tubes.