baber/WOPTO huggingface dataset:
Patent GB-409569-A (GB)
Title: Improvements in or relating to frangible struts adapted to be burst on expansion of a fluid contained therein, such as are used in fireextinguishing apparatus
IPC: A62C37/14
Filed: 1933-09-12
Abstract: 409,569. Frangible struts for fire apparatus. HODGMAN, W. K., 35, Washing- ton Street, Taunton, Massachusetts, U.S.A. Sept. 12, 1933, No. 25230. [Classes 47 (i) and 47 (ii).] A frangible strut, which on expansion of liquid contained therein bursts and allows operation of a sprinkler head fire door, &c., comprises a vessel of non-corrosive material, preferably of glass, having one open end which is closed by a stopper of non- corrosive material bearing against the mouth thereof without interposed packing, so that there are no forces acting at the joint to split apart or contract the walls of the vessel. The vessel 9 may seat in a stopper 7 which presses a soft metal gasket 8 on the mouth of an opening 3 in the base of a sprinkler head 1. The open end is closed by a stopper 10 with ground surface to contact with the ground mouth of the vessel and a film 20 of sodium silicate may be placed between or the joint may otherwise be protected against corrosive action by an asphaltic mixture. A metal cap 11 surrounds the joint and presses on the stopper 10 through a disc of soft metal 12. It is held in place to maintain the stopper 7 in position by a screw 5 in the sprinkler head which carries a spreader. The seating in the stopper 7 for the vessel 9 may be resilient to permit some irregularity in the shape of the vessel and a spring of sufficient power to maintain the stopper 7 in position even if the tension exerted by the frame 4 varies, may be placed between the bottle and the stopper 7.
Patent GB-899149-A (GB)
Title: Improvements in apparatus for producing imitation fire effects
IPC: F24C7/00
Filed: 1960-07-20
Abstract: 899,149. Imitation fires. ROSS, F. A. July 20, 1960, No. 25309/60. Class 126 An imitation coal fire has mounted in front of a light source a louvred screen of opaque material comprising a plurality of forwardly reflecting slats having their rear faces non- uniformly reflective and coloured to produce images of burning fuel on the front face of at least one adjacent slat when lit from behind. As shown, a freely rotating disc 20 with pressed out vanes 21 and a serrated skirt 27 is mounted above a lamp 19 and behind reflecting means comprising slats 1-9 and extensions 10 and 12 of the stove casing. Each slat may have corrugated metal foil 30 or embossed glass attached to its rear surface to reflect light on to the front surface of an adjacent slat. In an alternative embodiment, the slats are cast in metal, ceramic or glass to resemble coal or logs and the rear and/or front surfaces may be coloured with lacquer, vitreous enamel or glaze. The front surface of a rear reflector 29 or of the back plate 28 of the casing may be painted or embossed and coloured, or have foil or glass applied to it for dispersing and colouring the light rays. An electric rod element 15 is mounted at the focus of the parabolic intermediate slat 1 and of the parabolic assembly of slats 1-9 and a similar element 16 is mounted parallel to the element 15.
Patent GB-440751-A (GB)
Title: Improvements in igniting devices for liquid fuel burners
IPC: F23D11/08
Filed: 1934-09-04
Abstract: 440,751. Igniting liquid-fuel burners. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Timken Silent Automatic Co. ; 100, Clark Avenue, Detroit, Michigan, U.S.A.) Sept. 4, 1934, No. 25435. [Class 75 (iii)] In a liquid-fuel burner apparatus, such as described in Specification 440,750, in which fuel and air are projected from a rotary head C against a thin metal carburetting ring D, supported on a hearth B, ignition is effected by means of one or more electric arcs passing between the ring, or a refractory portion 31 therein, and an adjacent electrode E. As shown, the ring is formed in segments 22 provided with a vertical impact wall 24, a gutter 23 and an inclined air-deflecting portion 25. Diametrically opposite segments 22 are provided with a container 28 for a refractory electrode 31, which extends through an aperture 32 and conforms with the curved surface of the gutter 23, the electrode being formed by mixing granular carborundum, an insulating refractory binder and water and allowing the plastic mass to harden. The co-operating electrodes E, formed with a blunt tip 48 and a downwardly curved part 49 for deflecting air into the gutter, are secured to a conductor 44 supported loosely by ears 45 and a washer 46 in an insulating sleeve 43 but held against rotation by a clip 54. The sleeve 43 is secured in an outer insulating sleeve 35 held in a clamp 38, secured to the segment 22, and embedded with the clamp in the refractory hearth B. The washer 46 may be provided with a depending flange to deflect oil into the annular cup between the sleeves 35, 43. The arc gaps are connected in series through the ring segments with the double secondary winding of a transformer F preferably having an input of approximately 75 watts and a secondary current of 25 milliamperes with a steep wave front. The primary winding may be double. The electrical midpoint of the secondary winding and the ring may be earthed, and a condenser may be inserted across the input leads. In a modification, a metal hearth or drip pan is supported by U-shaped members resting on a layer of insulating material on the hearth plate and the sleeve 35 extends through apertures in the pan and plate and is held by a clamp welded to the underside of the plate, flanges on the ring segments being welded to the plate. U.S.A. Specification 1,888,694 also is referred to.
Patent GB-169710-A (GB)
Title: Apparatus for colouring webs of fibrous material by spraying
IPC: D06B1/02
Filed: 1921-01-10
Abstract: 169,710. Zimmer's Erben, F. Feb. 10, 1920, [Convention date]. Addition to 157,328. Inking - apparatus.- Consists in a modification of the apparatus for colouring webs described in the parent Specification in which the spraying nozzle is fully opened at each end of its path for cleaning, and a device is provided for automatically stopping the machine when the nozzle is in an end position. The spraying nozzle carriage 21, Fig. 1, reciprocated by a screw 17 rotated alternately in opposite directions from pulleys 18, 19, is provided with a regulating needle 40, Fig. 2, mounted on trunnions carried by a lever 45 pivoted at 47 and spring-pressed through links 49, 50 against an adjustable stop 48. An extension 45' of the lever 45 engages at each end of the path of the nozzle an adjustable cone 38, which rocks the lever and fully opens the nozzle. The device shown in Fig. 3 stops the machine when the clutch 20 is disengaged from both pulleys 18, 19. A prismatic thickened part 51 of the clutch rod 24 sliding in a corresponding groove in a fixed guide 5,7 has a central recess adapted to engage the end of a spring-pressed bolt 52 so that, when a handle 54 fixed to the bolt is turned to allow a pin 55 to enter to slot 56, the rod 24 moves on until the bolt engages the recess. Any remaining movement in the nozzle carriage. compresses either of two springs 59 behind the stops 60, 61 whereby when the machine is started again the clutch 20 is moved into the position to which it was last proceeding.
Patent GB-482047-A (GB)
Title: Improvements in and relating to typographical slug casting machines
IPC: B41B11/38
Filed: 1936-09-22
Abstract: 482,047. Type-bar-making machines. MERGENTHALER LINOTYPE CO. Sept. 22, 1936, No. 25712. Convention date, April 11. [Class 100 (iii)] Quadding - apparatus; cleaning matrices.- In apparatus for quadding or centring in which the jaws are operated by levers from a vertically movable rod, means are provided for backing off the jaws slightly from the composed line after the casting, and before the jaws are fully returned to the open position. The tendency of the matrices to spread out endwise, owing to the sudden release of the clamping pressure, is thereby avoided, and the end matrices are wiped by the jaws as the line is removed from between them. The jaws E, F, Fig. 1, are, as heretofore, operated by levers E<2>, F<2> from a vertically movable rod H, and the rod is locked in its downwardly moved position by a toggle-member. J, Fig. 5, which operates a clamp-member J<1>, adapted to grip a sleeve H<17> mounted on the rod. The toggle-member is actuated through a link J<2> from the jaw-closing cam. Provision is, as usual, made for slight relative movement between the rod H and the sleeve H<17>, to permit of a limited expansion of the line during justification. According to the invention, the clamp-member J<1> is formed with teeth to engage with corresponding teeth on the sleeve H<17>, so as to give a positive grip, and a small clearance is provided between the top of the clamp and the top-plate B<3> of the clamp housing B<2>. In its clamping movement, the toggle is forced down slightly past the dead-centre position, and the clampmember is positively held down by a vertically movable link K. After the casting, the links J<2>, K are raised, and a spring-pressed lever L acts to raise the clamp-member into contact with the top-plate B<3> of the housing B<2>. The clamp carries with it the sleeve H" and thus causes a slight opening of the jaws. The toggle-lock J is released, to permit the jaws to return to the maximum separation, by the ascent of the first elevator into the upper position. The front bearing-block J<10> of the toggle-member is movable in fore-andaft direction, and is normally held in the rearward position by a rotatable stud J<11> having on its head high and low portions, adapted to co-operate with projections on the wall of the housing B<2>. When the stud is turned so as to bring the low portions into engagement with the projections, the stud is allowed to move forwards, and the togglemember is then forced upwards by a spring J<6>, so as to release the sleeve H<17>, and permit the jaws to be fully opened. The rotation of the stud J<11> is effected by a projection on the first elevator as it moves into the upper position.
Patent GB-1143155-A (GB)
Title: Apparatus and method of sampling a dialyzable component of a fluid
IPC: A61M1/20
Filed: 1967-06-05
Abstract: 1,143,155. Dialysis apparatus. BECKMAN INSTRUMENTS, Inc. 5 June, 1967 [24 June, 1966], No. 25783/67. Heading B1X. Liquid flowing in tube 36 is passed through tube 44 made of a dialyzing membrane which is immersed in dialyzate 50. When substantial equilibrium has been reached, the equilibrium dialyzate is run off by means of tap 34, and fresh dialyzate introduced into chamber 20. In this way, the dialyzable components of flowing liquids may be sampled, and the process is of particular application to blood from living subjects in conjunction with an artificial kidney or heart-lung machine, using isotonic saline as dialyzate and membranes of cellulose acetate, collodion or sheep gut.
Patent GB-192441-A (GB)
Title: Improvements in means for transporting merchandise and other material in connection with the loading and unloading of vehicles
IPC: B60P1/64
Filed: 1921-09-29
Abstract: 192,441. Hutchinson, J. H. Sept. 29, 1921. Springs, arrangement of; guiding vertical play. -The trackway for supporting removable bodies of vehicles as described in Specification 5497/09 is supported at its rear end, which is over the axle, by two parallel beams C, D spaced apart by springs F, the beam D being secured to the axle B, and the beam C to the trackway A. Interengaging brackets on the beams prevent lateral movements, and longitudinal movements are restrained by brackets E formed with guide-ways for the ends of the beams.
Patent GB-241572-A (GB)
Title: Manufacture of dyestuffs
IPC: C09B45/01
Filed: 1925-10-15
Abstract: The azo dyes obtained by reducing the products made by coupling nitrated diazotized 1-amino-2-oxynaphthalene-4-sulphonic acid with a naphthol (see Specification 214,629) are converted into soluble zinc compounds by treatment with a zinc yielding agent such as zinc chloride dissolved in caustic alkali or ammoniacal zinc chloride or hydroxide.  They dye wool in violet to brown-black tints changed to grey or black by after-chroming. According to examples, zinc compounds of the reduced dyestuffs from nitrated diazotized 1-amino-2-oxynaphthalene-4-sulphonic acid and a -or b -naphthol are prepared.
Patent GB-990103-A (GB)
Title: Dust-separating apparatus
IPC: B65H23/24
Filed: 1963-06-28
Abstract: 990,103. Electrostatic precipitation; spraying apparatus. SVENSKA FLAKTFABRIKEN A.B: June 28, 1963 [July 3, 1962], No. 25905/63. Headings B2F and B2J. A dust separating apparatus for gases at high pressures and temperatures, such as those which emerge from blast furnaces, comprises a wet pre-cleaner 3 combined with a wet electrostatic precipitator 16, the pre-cleaner being built-in in a front chamber 1a formed by an extension of the cylindrical enclosure 1 of the precipitator. The pre-cleaner shown is of the kind described in Specification 769,821. Gas from. a blast furnace enters the front chamber 1a through an inlet 2 and is cooled and pre-separated as it is expanded and then contracted while being sprayed by pipes 5 with a film of. water 4 which atomizes at the edge 7. The pre-cleaned and pre-wetted gas is distributed by a grill 8 on to the electrostatic precipitator which is formed of sections 9, 10, 11 and equipped with emission electrodes 12 and collecting electrodes 13. Rows of nozzles 15 work continuously to spray water parallel with the gas flow while rows of nozzles 14 intermittently spray water at a greater intensity across the precipitator. The cleaned gas issuing from the outlet 18 can be utilized for boilers or other purposes. Outlets 19, 20 discharge the dust and mud.
Patent GB-806514-A (GB)
Title: Improvements relating to electrical remote indicating repeating systems
Inventor: MARCHMENT WILLIAM THOMAS
IPC: G01R17/08
Filed: 1954-09-07
Abstract: 806,514. Electric indicating systems. EVERSHED & VIGNOLES Ltd. Sept. 2, 1955 [Sept. 7, 1954],No. 25948/54. Class 40 (1). In a remote indicating or repeating system including a number of repeaters or indicators to which a number of signals are transmitted from a number of distant transmitters over a common pair of lines, only one transmitter and its associated repeater being connected to the pair of lines at any one time, means are provided whereby each repeater or indicator provides a continuous reading despite the fact that it is not receiving a continuous signal. The repeater shown forms part of a system having continuously driven selector mechanism at each end of the lines, for example, as described in Specification 806,515. The signal current is applied via terminals 25 to a coil 11 in opposition to the anode current of a valve 1, supplied from transformer 5 and rectifying bridge 7, which flows through a similar coil 10. The coils 10 and 11 co-operate with a magnet 12 so that an attraction or repulsion, according to which coil predominates, operates a moving contact 14 connected to the grid of the valve 1, into engagement with contact 16 or contact 17. If the anode current is less than the signal current, the grid condenser 21 is connected via contact 17 to the positive junction of the bridge 7, the charge on the condenser increasing the grid potential to increase the anode current until it equals the signal current, and the moving contact 14 assumes its mid-position. If the anode current must be decreased to obtain equilibrium, the condenser 21 is connected via contact 16 to a point 26 at a negative potential, the contact 14 assuming its mid-position when the currents in coils 10 and 11 are balanced. The condenser 21 ensures that when the grid potential has been adjusted, it remains at a steady value, thereby giving a steady reading of the indicator 18 until the next signal is received. The relays B, BB and C constitute a delay arrangement to avoid errors due to fluctuations when the signal circuit is closed and opened, slow-release relay C being normally operated. When a signal is transmitted to the repeater, the selector mechanism operates switch S to energize relay B, which prepares the circuit for slow-acting relay BB, prepares the grid circuit for valve 1, short-circuits relay C and completes the signal coil circuit. At the end of its delay time C releases to energize BB to complete the connection between the grid and contact 14. When balance is reached, and before the termination of the signal, the switch S is opened and B releases to isolate the condenser and return the circuit to normal. Specification 589,423 also is referred to.
Patent GB-616198-A (GB)
Title: Stabilisation of paraformaldehyde
IPC: C08G2/08
Filed: 1946-08-29
Abstract: Paraformaldehyde is stabilized by incorporation of pentaerythritol in an amount of 0.1 to 10 per cent, preferably 0.5 to 2.5 per cent, based on the weight of the composition.  The incorporation may be effected by dissolving pentaerythritol in aqueous formaldehyde, and removing the water, e.g. by vacuum distillation or evaporation, or by azeotropic distillation with benzene or ethyl acetate.  Examples of the preparation of such compositions are given, together with the results of melting point, glue coagulation and solubility tests.
Patent GB-1154922-A (GB)
Title: Apparatus for Measuring the Response of an Audience
IPC: A61B5/053
Filed: 1966-06-10
Abstract: 1,154,922. Audience response measurement. SCREEN GEMS Inc. June 10, 1966 [June 11, 1965], No.26022/66. Heading G1N. Audience response is determined by measuring apparent skin resistance variations. The subject is connected e.g. by two finger-contact electrodes, to a milling circuit which maintains constant voltage (or current) across the electrodes, so that variation in the feedback signal reflects the change in apparent skin resistance (referred to in the Specification as basal skin resistance). This signal is converted to a logarithmic function so that the response of a group of subjects may be added. The rate of change of resistance (referred to as galvanic skin response) may be obtained from a differentiating circuit. By maintaining zero voltage across the electrodes, the reflex generated potential (Tarchinoff potential) may be determined. The electrode "pre-amplifier" and voltage regulator unit 24 may be mounted on the subject in a container similar to a watch case. Circuit Details: - (i) Nulling Circuit: the signal from the electrode terminals 22, 23 are fed to a differential amplifier 32a, 32b, selectively biased from a reference source comprising diodes 37 and potentiometer 38. The differential output is supplied through transistors 40, 36, to control the lamp of a photoresistor regulator unit 27. (ii) Logarithmic circuit: the control signal from transistor 36 is also applied to a compensating photo-resistor unit 42 (similar to the regulator unit 27) and thence to a Zener diode 46 acting as a non linear element to provide a logarithmic signal to meter 50. The degree of non linearity may be controlled by potentiometers 43, 48. (iii) Rate of change circuit: the A.C. component of the signal is fed to long time-constant capacitors 59, 60 and transistor 62a operated under non- linear "starved input" conditions to compensate for the non linear output of the previous circuit. Resistance networks 52 and 71 connect responses from groups of subjects to skin resistance and rate of change recorders 55, 73.
Patent GB-849135-A (GB)
Title: Dehydrogenation of alicyclic alcohols
Filed: 1958-08-13
Abstract: Alicyclic ketones are prepared by passing the corresponding alicyclic alcohols, preferably at a temperature of 250 DEG  to 400 DEG  C. and at atmospheric pressure or below, over a dehydrogenationcatalyst comprising metallic ruthenium deposited on a support, preferably carbon.  The process is particularly applicable to the conversion of cyclohexanol into cyclohexanone; the formation of undesirable by-products, such as phenol, cyclohexene and benzene, is obviated. The process may also be used for the preparation of cyclopentanone and cycloheptanone.  A list of catalyst-supports is given.
Patent GB-340932-A (GB)
Title: Spraying apparatus particularly for agricultural or like purposes
IPC: B05B9/08
Filed: 1929-08-27
Abstract: 340,932. Garden and crop sprayers. OREGGIA, V., San Remo, Italy. Aug. 27, 1929, No. 26095. [Class 6 (ii).] In agricultural or like spraying - apparatus comprising a container for the liquid to be sprayed and an air pump for compressing air in the container to expel the liquid, the air pump 4 is mounted in an easily detachable manner in a tubular body 39 secured coaxially and vertically on the upper face of the container cover so that the pump may be manipulated when the container is on the ground, the tubular body serving for the transport of the container from place to place. The tubular body 39 communicates with the container 38 through an opening 40 and carries two hooks adapted to engage a cross-piece 42 fixed to the piston-rod 43 of the pump. The piston-rod 43 ends in a handle 45 by which the apparatus may be carried about when the cross-piece is engaged by the hooks. The nozzle 27 for the hose 29 is provided with a cock 28 and with a parallel tubular handle 30 secured by elastic clamps 31. The pump is furnished with a detachable valve comprising a ring 5 secured to the pump body and a tubular body 7 screwed in the ring 5 and provided with a seat 8 for a ball 9 which is held in place by a slotted cap 10 screwed on the body 7. A filling funnel 15 is provided with a delivery valve 16 controlled by a spring 17 resting on a perforated disc 18. The valve stem 20 passes through a crass-piece 21 and carries a handle 22. A projecting pin 23 serves to hold the valve open when the valve stem 20 is pressed downwards and partially rotated so as to press the pin through a slot 24 and engage it beneath the cross-piece 21.