baber/WOPTO huggingface dataset:
Patent GB-1174665-A (GB)
Title: Thermal Shock Resistant Structure, especially for Rocket Nozzle or Insert
Inventor: FELGAR ROBERT PATTISON
IPC: F02K9/97
Filed: 1967-03-06
Abstract: 1,174,665. Rocket nozzles. TRW Inc. March 6, 1967, No.10514/67. Heading F1J. [Also in Division C1] A thermal shock resistant structure such as a rocket nozzle or a throat insert for a rocket nozzle is formed of a mixture of refractory materials, at least two of the materials having significantly different coefficients of thermal expansion, the percentages of each of the two materials in the mixture varying throughout the structure in such manner that the product of the coefficient of thermal expansion and the normal operating temperature of the structure is substantially constant at all points throughout the structure. In Fig. 2 the throat insert 11 of a rocket nozzle is formed in accordance with the invention whereas in Fig. 3 the whole nozzle structure is so formed, the lines in the two Figures being lines of uniform temperature as well as lines where the proportions of the ingredients of the mixture are substantially the same. The refractory materials may be ceramic materials for example silica and zirconia, the mixture being mainly silica at the inside surface where the temperature is greatest and mainly zirconia at the outside surface where the temperature is lowest. The nozzle structure may be formed by preparing a graded mixture of the two ingredients in a hopper and feeding the mixture to a plasma spray gun for spraying the mixture in a molten state on a rotating cylindrical mandrel. In another example the mixture is of zircon and zirconia the coefficients of thermal expansion of which are 3 Î 10<-6> inch/inch‹F. and 6 Î 10<-6> inch/inch ‹F. respectively, the nozzle structure varying from mainly zircon at the inner surface where the temperature is say 3000‹ F., to mainly zirconia at the outer surface where the temperature is say 1500‹ F.
Patent GB-587165-A (GB)
Title: Mixing valve for producing a single stream of liquid at a constant and controllable temperature
IPC: G05D23/13
Filed: 1944-06-01
Abstract: 587,165. Thermostatic mixing valves. WADSWORTH, A. S. June 1, 1944, No. 10531. [Class 135] A thermostatic mixing valve for two fluids such as hot and cold water comprises a longitudinally displaceable valve member 12a, 12b, 12c actuated by a coiled thermostatic element 6 to control the proportions of hot and cold water from inlets 2a, 2b to an outlet 2c. The element 6 acts on a sleeve member 7 having a helical slot which engages a pin 11e secured to the valve rod and passing through a longitudinal slot in a normally fixed inner sleeve 3a. A conical valve member 2 forming a housing for the valve 12a, 12b, 12c is adapted to be rotated by means of the inner sleeve 3a, which is engaged by a splined portion 14a of an adjusting spindle 14, to control both of the inlets simultaneously to regulate the quantity of the mixture flowing without disturbing the setting of the thermostat. To adjust the temperature of the mixture, the spindle 14 is withdrawn to disengage from the sleeve 3a and rotated to adjust the position of an arm 5 carrying the thermostatic element 6.
Patent GB-1106164-A (GB)
Title: Process for the production of an aqueous slurry of a fertilizer
IPC: C05B11/08
Filed: 1964-03-19
Abstract: An aqueous slurry, suitable for pelletizing into complex fertilizer pellets, is produced by mixing tricalcium phosphate bearing material e.g. rock phosphate in particulate form e.g. 100 mesh or finer, with sulphuric acid and/or phosphoric acid, the molar ratio of total acid to phosphorus pentoxide in the rock being at least 4.7 : 1, agitating the resulting slurry, maintaining the temperature at a maximum of 105 DEG  C. preferably for at least 20 mins. and neutralizing the excess acid with anhydrous ammonia or ammonium salts.  With a mixed acid treatment the molor ratio of sulphuric acid to P2O5 in the rock is preferably at least 1.7 : 1 and the sulphuric acid is added in two stages to a mixture of phosphoric acid and phosphate rock, with at least 10 minutes agitation between the addition of first the major portion of the sulphuric acid and then the remainder. The mixed acid concentration is preferably 25-45% and acidulation is preferably 75-80 DEG  C. maintained for 1 hour.  Potassium chloride may be added before or after neutralization.  Reference has been directed by the Comptroller to Specification 972,830.
Patent GB-848521-A (GB)
Title: Improvements relating to control equipment for nuclear reactors
Inventor: LUDBROOK LESLIE CARTER
IPC: H02P27/06
Filed: 1957-04-01
Abstract: 848,521. Control of several A.C. motors. BRITISH THOMSON-HOUSTON CO. Ltd. April 1, 1958 [April 1, 1957], No. 10584/57. Class 38 (3). [Also in Group XL (a)] Equipment for controlling movement of nuclear reactor control-rods comprises a lowfrequency A.C. voltage generator, a separate motor for raising or lowering each control-rod, and control-circuits for connecting each of the motors to the generator so that small groups of the rods move sequentially. A manually - operated controller CSWO has three operating positions in which clutches DF, DS and US may be energized to couple a transmitter coil R to a constantlyrotating motor DM for " down-fast," " down-slow " or " up-slow " motion. When raising the control-rods the switch R1 is closed first and a motor PM is energized by the transmitter coil R of the generator and the motor rotates until the control-rod reaches upper limit position when a switch LS2 is closed. Closure of this switch LS2 causes a step-wise rotation of a cam controller CCO which in turn energizes the holding coil for the rods of the first group de-energizes the lifting-motors PM for this group energizes the lifting motor for the next group and de-energizes the holding coil for that group. By using two A.C. generators the rods can be raised or lowered in two separate groups independently and concurrently so that their travel may overlap. The A.C. generator and its associated circuit is shown in Fig. 1, wherein an A.C. supply 1 is fed to the rotor 2 of the generator whose stator 3 supplies the primary bore of a transformer. The secondary of this transformer and the secondary of a transformer 12, 13, 14 are connected through rectifier bridges to provide an output across a load 9 as shown by 12 in Fig. 3. The outputs I7, I8 from these rectifier bridges are in the same sense and are shown in Fig. 3, Specification 842,649 is referred to.
Patent GB-128738-A (GB)
Title: Improvements connected with Devices for Cleansing and Polishing the Surfaces of Floors, Walls, Windows, and the like.
Inventor: HOULIHAN WILLIAM JAMES
IPC: A47L13/256
Filed: 1918-06-27
Abstract: 128,738. Houlihan, W. J. June 27, 1918. Cloths stretched over backings.-In pads of the kind comprising a cloth 2 stretched over a backing 7, the cloth is formed with reinforcing-folds 4 at each end and eyelet rings 5, passed through the folds and cloth, are adapted to engage pins or studs 15 on the backing whereby the cloth is detachably held in position. The pins are preferably formed on a superstructure 9 secured to the backing, which also adjustably carries the handle 21 between the upstanding walls 14. The socket 18 may be formed with an extension or lug for engaging the base and holding the handle in position, or the base 9 may be formed with a projection 10 to which the socket is adjustabiy secured by a screw 24 which also secures the handle 21 in the socket. Fig. 15 shows a modified construction in which the handle is adjustab'y held by means of a pivoted member 37 engaging notches 33 in the handle. The backing 7 may be replared by a wire or metal frame and the superstructure 9 cut from sheet metal.
Patent GB-1261738-A (GB)
Title: Electro-optical arrangement for light modulation
Inventor: GANTZ JOACHIM
IPC: G02F3/00
Filed: 1969-02-27
Abstract: 1,261,738. Modulating light. KOMBESTAT BOBOTBON VEB. 27 Feb., 1969, No. 10656/69. Heading H4F. A light modulator comprises, in series along the optical axis, a polarizer 9, a first plurality of multi-plate electro-optical cells 1 stacked normally to the axis, an Analyser 11, a second plurality of multi-plate cells 1 stacked normally to the axis and to the first plurality and a further analyser 10 rotated at 90 degrees to analyser 11, each stack of cells comprising two :interleaved sets of electrode plates disposed parallel to the optical axis one set being connected to earth and the other set being :subdivided into groups of at least two electrodes, each group thereby defining the extent of a single cell and being connectable via an independently controlled switch to a potential source 7 for producing a field transversely of the optical axis. As shown, polarizer 9 is disposed parallel to analyser 10. A simpler arrangement, Fig. 1 (not shown), omits the second stack of cell and analyser 10. The arrangement is said to be useful for producing characters and pictures and for producing logical combinations of luminous fluxes.
Patent GB-665393-A (GB)
Title: Improvements relating to power operated bookbinders' presses
IPC: B42C13/00
Filed: 1949-04-21
Abstract: 665,393. Bookbinders' presses. MACKAY, A. April 21, 1950 [April 21, 1949], No. 10657/49. Class 16. In a bookbinder's press of the kind described in Specification 322,552, [Class 16], having a fixed head with a spring supported face plate and a head, movable by hand to impart a preliminary pressure to sheets cr the like located between the movable and fixed heads and an electric motor for imparting movement to the movable head and final pressure to the sheets, the motor drive being brought into operation by the closing of of a double pole switch upon completion of the preliminary movement and a trip device interrupting the motor circuit on the pressure reaching a predetermined maximum, one pole of the double pole switch for starting the motor is operated by, in effect, shortening a cable or the like stretched parallel to the frame of the press and path of movement of the movable head, the cable being secured at one end to the frame and at its other end to means actuating the switch, the other pole of the switch being disposed in the path of a member secured to the spring supported face plate of the fixed head and operated by the member when the face plate is pressing towards the fixed head by pressure from the movable head. In the arrangement shown, a cable 22 which is secured at one end to a pedestal 11 supporting a table 3 and at its other end to one end of a spring-loaded lever 20, passes between a pair of pulleys 38, 38 carried by a lever 37 secured to one end of a shaft 35 on the underside of a movable head 2. The other end of the shaft 35 carries on a crank a roller 40. A spring-loaded latch member 32 having a depending arm 30, is pivoted on the head 2 and normally engages a spring-urged arm 34 secured to the shaft 35. In operation of the press and upon preliminary movement of the head 2 towards a fixed head 1 by hand by means of a handle 6, the roller 40 engages a member 41 pivoted to the table 3, to rock the pulleys 38, 38, and shorten the effective length of the cable 22, thereby to close a switch pole 19 co-operating with the free end of lever 20. Continued pressure on the head 2 actuates a rod 8 to engage a rack 4 with a gear wheel 5, and depresses a spring-loaded face plate against the head 1 to close a switch pole 18, by means of a pin 17, which completes a main contactor circuit for a motor 14 driving the gear wheel 5. When a requisite pressure has been attained, as determined by an adjustable set screw 29 carried by a spring loaded plate 25 on the head 2, the screw 29 trips the latch member 32 to permit switch pole 19 to open and stop the motor. A lever 10 is then manipulated to disconnect the head 2 from the gearing to permit withdrawal of the head.
Patent GB-1301072-A (GB)
Title: Process for producing coke
IPC: C10B55/00
Filed: 1971-04-22
Abstract: 1301072 Coking oils and pitch RUTGERSWERKE AG 22 April 1971 [15 June 1970] 10667/71 Heading C5E Anisotropic coke is made by reacting a high boiling point a coal tar fraction, e.g. anthracene oil, and/or coal tar pitch, with a melt of an alkali metal hydroxide or amide, or an alkali metal, removing the unattacked portion of the fraction and/or pitch from the melt, and carbonizing the portion at a temperature of from 430‹ to 550‹ C. and at from 3 to 15 atmospheres excess pressure, e.g. by delayed coking. The coke may then be calcined. The fraction preferably has a B.P. not less than 300‹ C., and may be a pitch distillate, if pitch is the feedstock, it preferably has a softening point of from 25‹ to 30‹ C. (KS). If a hydroxide melt is used, a mixture of NaOH and KOH in equal weight proportions is preferred, the coal tar material forming from twice to four times the weight of the melt. The reaction proceeds for from 0À5 to 2 hours at 280‹ to 300‹ C. before the unattacked portion is removed, washed, and carbonized. If the metal or amide is used, sodium is preferred, and the melt should comprise from 5 to 10% b.w. or 7 to 15% b.w. respectively based on the coal tar material, which may be diluted with a solvent, e.g. solvent naphtha, mesitylene, cumene or pseudocumene. Reaction times range from 2 to 5 hours, and temperatures from 120‹ to 175‹ C. The melt dissolves heterocyclic compounds in the coal tar material which carbonize to give isotropic coke.
Patent GB-108343-A (GB)
Title: Improvements in or relating to the Low-temperature Distillation of Coal.
IPC: C10B1/04
Filed: 1916-07-28
Abstract: 108,343. Lamplough, F., and Oil Extractors, Ltd. July 28, 1916. Coiled and sinuous tube superheaters. - In a process for effecting a low temperature distillation of coal by means of superheated steam or other gaseous heating-medium brought into contact with the coal, the steam for use in the retorts is supplied from a superheater M, normally fed by exhaust steam from steam-engines or other ap. paratus through a control valve M<1>. On the top of the superheater is an evaporator comprising a drum 0 and a coil P connected at one end to the inlet pipe Q<1> of the superheater and at the opposite end to a water supply pipe P'; a pipe O<1> connects the drum to a donkey-boiler or other generator of live steam.
Patent GB-135762-A (GB)
Title: Machine for Forming the Elements of Press Buttons.
Inventor: CREVOISIER FRANCOIS JULES
IPC: B21D53/48
Filed: 1919-04-30
Abstract: 135,762. Crevoisier, F. J. April 30, 1919. Fastenings.-In a machine for making press buttons a strip of metal is fed between fixed matrices e and dies which are moved by angularly spaced eccentrics c on a shaft b to act successively and on successive portions of the strip. The strip is fed by two rollers f intermittently rotated by a ratchet gear v actuated from a cam h. The central bosses may then be slit by circular saws i on adjustable slides l if female parts are required.
Patent GB-610295-A (GB)
Title: Improvements in or relating to device for registering paper sheets in goffering or other machines
IPC: B65H9/06
Filed: 1946-04-08
Abstract: 610,295. Feeding sheets. BOBST & FILS SOC. ANON., J. April 8, 1946, No. 10810. Convention date, March 5, 1945. [Class 100(i)] Sheets fed to a goffering or other paper-working machine comprising, as shown, press members 1, 2, are registered on a feed table 11 by means of two or more pins engaging holes previously punched in the sheets, the pins being carried by a plate 12 on which are one or more flexible blades 13, 14 which are attached to part of the machine such as a ledge 17 carrying front stops 25, the sheets being raised off the pins to slide over the blades into grippers on endless chains 3. The pins may be carried by plates 18, 19 adapted to be adjusted about securing-screws. The blades 13, 14 are screwed at 21 to the ledge 17 at their forward ends and to the plate 12 at the rear ends, the latter connection comprising screws engaging elongated holes in the blades. The movement of the ledge has the effect of arching the blades to the broken line positions, Fig. 3a.
Patent GB-1497994-A (GB)
Title: Apparatus for displacing an element in a printing machine
IPC: B41F13/40
Filed: 1976-03-18
Abstract: 1497994 Printing apparatus POLYGRAPH LEIPZIG KOMBINAT VEB 18 March 1976 [22 April 1975] 10903/76 Heading B6C A roller or other printing device 1 is supported in an eccentric bearing 2 on an eccentric drive shaft 5 of a rotary motor 4. A rotary vane motor 4 and control means therefor are described.
Patent GB-1474531-A (GB)
Title: Fastening means for a shipping container
IPC: B60P7/13
Filed: 1975-06-11
Abstract: 1474531 Fasteners for shipping containers D T & N KEIGHLEY (WHALLEY) Ltd 11 June 1975 [12 March 1974] 10910/74 Addition to 1377685 Heading E2B A fastener, for fastening a shipping container 43 with lateral openings to a platform 42, comprises a body 10 having a first leg 11 for entering one of the openings and a second leg 13 carrying an abutment member 22 detachably mounted on a sleeve 20 which is movable on the leg 13 for example by a nut 18 screw threaded to the leg. The nut 18 has a top sleeve part 23 including a dirt seal 25 and sleeve-engaging circlip 26, and has a lower sleeve part including a sleeve retaining flange 30 and bar 31. A thrust bearing may be interposed between the flange and the sleeve. Strip-like projections fix the position of the member 22 on the sleeve 20 by delimiting a mount for a flange 32 and a U- shaped strap 35 of the member 22 when a pivoted filler piece 38 is interposed between the strap 35 and the sleeve 20. The gap left on pivoting the filler piece away from the strap allows the member 22 to be moved past the projections 40 when required.
Patent GB-513446-A (GB)
Title: The manufacture of condensation products
IPC: C08G12/10
Filed: 1938-04-09
Abstract: 513,446. Resinous condensation products,. CARPMAEL, A. (I.G. Farbenindustrie Akt.- Ges.). April 9, 1938, Nos. 10942/38 and 22009/39, the second Provisional Specification being divided out of the first Provisional Specification. [Class 2 (iii)] Resinous condensation products suitable for cast or pressed articles, as binding-agents and, in the form of soluble intermediates, as adhesives, are obtained by condensing aldehydes, particularly formaldehyde, with compounds of the H2N-#C-NHR-OH general formula wherein R stands for an alkylene or arylene radicle and X stands for O or S. Condensation may be carried out in a neutral, acid or alkaline medium in liquors or melts, in solution or suspension and in the cold or hot. Examples are given of the production of resins by condensing formaldehyde with (1) 4-hydroxyphenylurea or the corresponding thiourea, (2) 3-hydroxyphenylthiourea, (3) m-cresol and 3-hydroxyphenylurea, (4) a specified hydroxynaphthylurea and (6) a specified ethanolurea.
Patent GB-215934-A (GB)
Title: Improvements in fire engines
IPC: A62C25/00
Filed: 1923-04-23
Abstract: 215,934. Bouillon, J., and Bouillon, C. April 23, 1923. Fire-engines; fire-extinguishing by solutions or liquid mixtures.-Fire-engines are provided with a number of liquid-containing reservoirs any of which mav be put into communication with the pump, and the mixing of liquids, when more than one is to be projected, takes place in the body of the pump. There may be two reservoirs containing water, and powders held in readiness may be added when required; or in addition to the main water reservoir there may be two reservoirs to contain foam-forming solutions. The pipes and valves are of predetermined dimensions so as to allow approximately correct proportions of liquid to be fed for mixture in the pump. Pipes 2 controlled by cocks 4 carry the liquids from the reservoirs 1 to the pump 5; the liquids are then discharged through cocks 8. A suction pipe 3 is used to draw liquid from external sources.
Patent GB-883157-A (GB)
Title: Improvements in waterproof capes, jackets and like garments
IPC: A41D27/28
Filed: 1960-03-29
Abstract: 883,157. Capes, jackets &c. WARNER, F. Aug. 12, 1960 [March 29, 1960], No. 11025/60. Class 141 In a waterproof cape, jacket &c. having an openwork lining 4 across the top of the back and over the shoulders, the lining consists of a perforated sheet of a plastics material secured along its edges by adhesive or heat-welding.
Patent GB-365433-A (GB)
Title: Improvements in or relating to vehicles bodies
IPC: B62D25/00
Filed: 1931-04-14
Abstract: 365,433. Road vehicle bodies. BUDD INTERNATIONAL CORPORATION, 25th Street, Philadelphia, U.S.A.-(Assignees of Trautvetter, G. ; 2500, Hunting Park Avenue, Philadelphia, U.S.A.) April 14, 1931, No. 11068. Convention date, May 28, 1930. [Class 108 (i).] In metal vehicle bodies the sides are formed by a front stamping which extends from the front of the cowl to the rear of the front door and which can be joined to rear stampings to form various types of vehicles such as the coupÚ, sedan, &c. The front stamping 10 includes the window and door openings and at the rear comprises an inwardly presenting channel post the front wall 13 of which forms the door jamb while the rear wall 14, in the sedan type as shown in Figs. 2 and 4, is cut off - and a similar channel forming the front portion of the rear stamping 11 nesting with it. A reinforcing inner panel 16 is provided while the panel stampings 10, 11 above and below the door opening are connected by a welded lap joint. In the coupe type the rear wall 14, Fig. 5, of the front stamping post is not cut off and the rear stamping 11<1> is connected to the post, an offset 19 for the door overlap being provided together with an inner reinforcing panel stamping 17.
Patent GB-252693-A (GB)
Title: Improvements in or relating to the production of aluminium oxide
IPC: C01F7/02
Filed: 1926-04-27
Abstract: 252,693. H÷ganõs-Billesholms Aktiebolag. May 27, 1925, [Convention date]. Alumina; aluminium sulphate.-In the production of alumina by fusion of materials such as bauxite or clay with reducing agents, the fusion is effected at first with insufficient reducing agent, and then just before the end of the melting process an excess of carbonaceous reducing agent so as to reduce all the impurities and convert some of the alumina to carbide. Preferably a quantity of iron ore and enough carbon to reduce it are then added, the reduced iron having the effect of carrying down finely-divided ferrosilicon in suspension in the alumina. The alumina is then poured off from the ferrosilicon, and is preferably granulated in water. The material is then treated with an acid of such concentration as to decompose the aluminium carbide without attacking any ferrosilicon present, for instance sulphuric acid of 1.71 specific gravity, or hydrochloric acid may be used, thus forming a solution of aluminium sulphate or chloride. The alumina is finally treated with diluted sulphuric acid or with concentrated or dilute hydrochloric acid so as to dissolve any ferrosilicon present, leaving the alumina pure.
Patent GB-463903-A (GB)
Title: Improvements in or relating to radio receiving systems
IPC: H03G3/26
Filed: 1936-04-17
Abstract: 463,903. Wireless receiving-apparatus. MANN, A. N. April 17, 1936, No. 11090. Convention date, April 18, 1935. [Class 40 (v)] Interference is prevented by means which render the signal path inoperative and include an auxiliary amplifier and rectifier operative by voltages exceeding predetermined limits. The Figure shows a signal amplifier 13 with a grid 32 controlled by the voltage across a resistance 48 in the load circuit of a rectifier 46, 47 fed by an amplifier 33. A separate rectifier may be used, Fig. 4 (not shown), and the operating threshold may be controlled by the bias potentiometer 35 or by a voltage derived for automatic volume control. Instability may be avoided by operating the valve 33 as a-frequency changer, Fig. 3 (not shown), and the time constant of resistance condenser combination 48, 49 is preferably not longer than one ten-thousandth of a second.