baber/WOPTO huggingface dataset:
Patent GB-385594-A (GB)
Title: Manufacture and application of derivatives of 2:3-hydroxynaphthoic acid
IPC: C07C233/12
Filed: 1931-03-25
Abstract: Azo dyes; di(2 : 3-oxynaphthoyl) diamines which have good affinity for cotton fibre and are suitable for use as coupling components for the production of azo dyes in substance or on the fibre are obtained by condensation of 2 : 3-oxynaphthoyl chloride or of a mixture of 2 : 3-oxynaphthoic acid and a phosphorus halide in a suitable solvent, e.g. toluene, with a diamine of the general formula <FORM:0385594/IV/1> in which Ar and Ar<1> are aromatic residues of the benzene series free from sulphonic or carboxylic acid groups and x and y are integers greater than 1.  The following examples are specified: (1) A mixture of b  : b <1>-di-(o-aminophenoxy)-diethyl ether (1 mol.), 2 : 3-oxynaphthoic acid (2 mols.), and phosphorus trichloride in toluene is boiled for 15 hrs., whereafter it is made alkaline with sodium carbonate, the toluene is removed by steam distillation, the residue is cooled and the solid product is filtered off, dried, and may be recrystallized from hot chlorobenzene.  (2) b : b <1>-Di-(p-aminophenoxy)-diethyl ether (1 mol.) is similarly condensed with 2 : 3 - oxynaphthoic acid (2 mols.); the product, isolated as in (1), may be recrystallized from ethyl alcohol.  (3) b : b <1>-Di-(p-chloro-o-aminophenoxy)-diethyl ether (1 mol.) is similarly condensed with 2 : 3-oxynaphthoic acid (2 mols.); the product, isolated as in (1), may be recrystallized from alcohol. (4) A mixture of b  : b <1>-di-(p-methyl-o-aminophenoxy)-diethyl ether (1 mol.) and 2 : 3-oxynaphthoyl chloride in toluene is boiled for 10-12 hrs., whereafter it is made alkaline with sodium carbonate, the toluene is removed by steam distillation, the residue is filtered and washed and may be recrystallized from chlorobenzene.
Patent GB-569392-A (GB)
Title: Improvements in or relating to fluid actuated remote control systems
IPC: F15B21/04
Filed: 1943-06-07
Abstract: 569,392. Automatic control systems. BENDIX AVIATION CORPORATION. June 7, 1943, No. 9142. Convention date, June 30, 1942. [Class 38 (iv)] [Also in Groups XXVIII and XXIX] Linear dimension.-In a remote control system comprising master and slave cylinders 12, 18 connected by a fluid link 14, the cylinders are automatically synchronized by electrical means which is rendered ineffective while the master cylinder is being operated. Fluidpressure supply to a power cylinder 30 for actuating the master piston 26, is controlled by a valve 40, the operating lever 42 of which carries a switch 108 actuated in common with the lever 42 to disable the synchronizing means. The latter comprises resistances 84, 88 connected in parallel with a battery 80 and having sliding tappings 90, 100 connected for movement with the master and slave pistons respectively. Expansion or contraction of the fluid column causes differential movement of the tappings, thereby actuating a polarized relay 96 in one direction or the other to start or reverse an electric motor 78 driving a plunger 66 which adds to or subtracts fluid from the column 14. A constant pressure acts on the back of the slave piston to provide a fluid spring. In an alternative arrangement the master cylinder is manually actuated by a lever 200 carrying a synchronizing means disabling switch 212 and a brake 216. In this case, the polarized relay actuates means within a heating or cooling system for a fluid container 234 connected to the fluid column, whereby the volume of the latter is adjusted as required.
Patent GB-921848-A (GB)
Title: Improved cleaning device for gas passages in percussion machines
IPC: B25D9/10
Filed: 1961-03-13
Abstract: 921,848. Direct-acting engines. G. A. BERGMAN. March 13, 1961 [March 21, 1960], No. 9144/61. Class 7(2) [Also in Group XXIII] A cleaning device for gas passages in percussion machines having a freely running hammer piston comprises an insert loosely mounted in a gas passage to clean the passage due to movements caused by the shaking of the machine. Examples of the type of percussion machine to which the invention may be applied are rock drills or breaking machines incorporating an internal-combustion engine, or machines operated by compressed air. The Figure illustrates an internal-combustion driven rock drill machine which comprises a freely running hammer piston 10, part of which slides in a cylinder 12 with a motor piston 22. Every explosion in the combustion chamber 20 forces combustion gases through a passage 44 and a non-return valve 46 into the space 42 to return the hammer piston after its downward work stroke. A wire insert 50 sits loosely in the passage 44 to keep the latter clean through the shaking occurring during the operation of the machine. The insert, preferably of steel such as piano wire, may be of such a material that it becomes red hot and assists in effecting combustion of some of the unburned particles. The lower end of the insert may be bent as shown to limit longitudinal movement of the insert in the passage 44. A modified insert (not shown) consists of a straight wire or rod provided at its lower end with a sleeve or nut which limits the longitudinal movement of the insert and is covered by a rounded head of a wear-resistant material such as cobalt-chromium alloys known under the (Registered Trade Mark) " Stellite ".
Patent GB-931898-A (GB)
Title: Improvements in carburettors comprising a choke valve for internal combustion engines
Inventor: MENNESSON ANDRE LOUIS
IPC: F02M1/10
Filed: 1962-03-09
Abstract: 931,898. Spray carburetters. SOC. INDUSTRIELLE DE BREVETS ET D'ETUDES. March 9, 1962 [Feb. 10, 1962], No. 9237/62. Class 7(3). An automatic choke valve 6, controlled by a bimetallic spiral 13 which is responsive to the temperature of the engine cooling water, is positively connected to the free end of the spiral 13. The spiral 13 is anchored at 13b to a stud 14 projecting from a wall forming the side of a chamber 16 to which water from the engine cooling system is conducted. The free end 13a, Fig. 4, of the spiral 13 is looped over a pin 12 on a lever 11 fixed to the eccentric pivot 7 of the valve 6, which lever is also controlled by a suction-actuated piston 23. At cold starting the spiral 13 holds the valve 6 closed against the actions of the suction piston 23 and the flow of air on the valve 6. As the spiral is heated by the water in chamber 16, it unwinds to allow the valve 6 to open and the valve is finally held firmly in the completely open position by the hooked end 13a of the spiral.
Patent GB-885013-A (GB)
Title: A device for issuing measured amounts of a substance capable of flowing
IPC: G01F11/24
Filed: 1960-03-16
Abstract: 885,013. Delivering measured quantities of liquid. HEINRICH, R. M. March 16, 1960 [March 18, 1959], No. 9335/60. Class 106(5). A dispenser for liquids or semi-liquids comprises a member 17 in the form of a hollow cylinder which is provided in its peripheral wall with two oppositely-disposed openings and is rotatable about its axis to bring either opening into communication with a feed conduit 5 connected to a reservoir, and a movable breech member 19 provided inside the hollow cylinder and adapted to allow the entrance of a predetermined amount of substance from the feed conduit 5 into the body 17 when one opening in the cylinder is open to the feed conduit and to expel the measured quantity from the cylinder as soon as the latter has been brought into the issuing position. As applied to the dispensing of material from a large-scale pressure cooker, the feed conduit 5 terminates in a cylindrical housing 9 which is provided with inlet and outlet openings 8, 10 and has rotatably mounted inside it the hollow cylinder 17 traversed centrally by an open-ended cylinder 18 in which slides the breech member 19 in the form of a free piston; the travel of the piston is constrained by a pin 20 which traverses the cylinder 18 and passes through a slot 21 in the piston 19; the amount of liquid dispensed can be varied by changing the length of the piston. A rubber sleeve 31, Fig. 8, is provided between the member 17 and the housing 9 and has openings 36, 37 corresponding to the inlet and outlet openings of the casing 9; water or steam is introduced between the rubber sleeve and member 17 through holes 40, Fig. 4, for lubrication of the rubbing surfaces. In operation, the cylinder 18 is brought into line with the feed conduit 5 to allow the material being dispensed to push the piston to one end of the cylinder 18. The member 17 is then rotated through 180 degrees to bring the piston adjacent the feed conduit when the pressure in the cooker pushes the. piston along the cylinder 18 to expel the material already in the cylinder through the opening 10 and charge the space above the piston with another measured supply. The piston may take the form of two relatively-adjustable telescopic piston members. The body 17 is movable by hand, foot or sprocket-and-ratchet mechanism or hydraulically, pneumatically or electromechanically.
Patent GB-929860-A (GB)
Title: Improvements relating to rotary-piston internal combustion engines
IPC: F02B53/00
Filed: 1962-03-12
Abstract: 929,860. Rotary piston internal-combustion engines. DAIMLER-BENZ A.G. March 12, 1962 [March 16, 1961], No. 9417/62. Class 110 (2). A rotary piston I.C. engine of the trochoidal type having a triangular piston 2, Fig. 1, executing a rotary movement within a bicuspid housing 5 about an eccentric on the output shaft 1 instead of the usual internally toothed and externally toothed drive to maintain the required ratio of the angular velocity of the piston to that of the shaft includes at least one trochoidal track 6 fixed to the piston made in two parts located one behind the other in the axial direction of the piston and pairs of guide rollers 7 with one roller from each pair co-operable with one track part and the other roller of each pair co-operable with the other track part. The surface portions 11, Fig. 3, of one track part contact the associated rollers at high rolling speeds and the surface portions 12 of the other track part contact the associated rollers at lowrolling speeds. Portions 11<SP>1</SP>, 12<SP>1</SP> on the respective track parts being cut back to be out of contact with the rollers. Bridge portions 13 on both track parts contact the two rollers of each pair simultaneously. Alternatively, the track parts may be on the housing and the guide rollers carried by the piston.
Patent GB-665870-A (GB)
Title: Improvements in or relating to fire or temperature rise detecting appliances
IPC: G08B17/06
Filed: 1949-04-08
Abstract: 665,870. Fire alarms. GRAVINER MANUFACTURINGCO.,Ltd. WILKINSONSWORD CO., Ltd., and FARMER, R. B. March 10, 1950. [April 8, 1949] No. 9574/49. Class 118 (i). [Also in Group XXXVI] In a fire detector cable, the negative temperature coefficient resistance material separating the cable conductors is a mixture comprising titanium dioxide and magnesium oxide. A preferred mixture is made up of 98 per cent commercial grade T 1 O 2  and 2 per cent MgO. In the cable shown, Figs. 1 and 2, the powdered oxide mixture c is compressed between an inner copper wire band an outer copper tube or capillary e. To facilitate securing and mounting in a terminal or circuit connector fitting, Fig. 1 (not shown), one end portion of the cable is not so reduced as the remainder or the cable proper which distributed in the area to be protected terminates in a moisture proofing cap p, Fig. 2, and has an outer covering in the form of a stainless steel or iron alloy tube f. The cable may be artificially aged by heating at a temperature between 200‹C. and 250‹C. for a period of about six hours with D.C. at 24 volts applied between the cable conductors and then resting the cable for not less than 15 hours at room temperature without any electric potential applied to the cable conductors. In use, Fig. 4, if a fire occurs in the vicinity of the cable the resistance of the oxide filling c quickly decreases and the current which then flows from the source s operates relay u whose contacts u<SP>1</SP> then close to light warning lamp t. Operation of relay u also opens relay contacts u<SP>2</SP> to place in. series with the relay coil a current limiting resistance v so that when the cable has cooled down the current flow cannot be of sufficient magnitude to cause local heating in a narrow track or path of the oxide filling c which would sustain the current and prevent resetting of relay u. In a modification, Fig..3 (not shown), the use of a high resistance, highly sensitive relay obviates the need for a separate current limiting resistance. The cable according to the invention is specifically designed for use as a fire or abnormal temperature rise detector in aircraft power plant installations and is permanent in the sense that it remains serviceable after repeated heating and cooling. The anatase form of T 1 O 2  is preferred. Specifications 619,797 and 653,864, [both in Group XXXVI], are referred to.
Patent GB-1247631-A (GB)
Title: Ship's loading apparatus having two coupled derricks
Inventor: BAUER RALF
IPC: B66C23/60
Filed: 1970-02-27
Abstract: 1,247,631. Ship's derricks. WARNOWWERFT WARNEMUNDE VEB. 27 Feb., 1970, No. 9623/70. Heading B8B. A ship's loading apparatus comprises two coupled derricks 1 each articulated about a horizontal and a vertical axis by a derrick heel socket 3 and interconnected by a guide cable 5. The guide cable 5 is reeved on the outsides of the derricks 1 to tackles 6, each with a pulley block 7 on one of the derricks 1 and a pulley block 8 on a point on an upright 2 spaced from the associated derrick heel socket 3. A pulley traveller 9 is arranged on the guide cable 5 and carries load falls 10 to a hook 11, Fig. 3, the load being moved by the two load falls 10. The derricks 1 are each pivoted by an hydraulic cylinder 12 and, in addition, each has a topping lift 13, Fig. 2 (not shown).
Patent GB-416516-A (GB)
Title: Improvements in apparatus for determining the velocity, and/or the dust, and/or mistcontent, of a fluid stream
IPC: G01F1/74
Filed: 1933-03-30
Abstract: A device for determining the dust &c. content in a fluid stream comprises means adapted to be located in the conduit for the fluid stream for collecting the dust and means enabling the velocity of the fluid stream to be measured by the use of a differential pressure gauge.  In the form shown a casing 1, having a central bore 1<a>, is provided with an annular groove 1<b> in the outer surface of the casing and an annular groove 1<c> in the bore 1<a>, the grooves being connected by tubes 4, 5 respectively to nipples 4<a>, 5<a> which may be connected to a differential pressure gauge (not shown).  The groove 1<b> is covered by a sleeve 2 with orifices 2<a> and the bore 1<a> is lined by a sleeve 3 with orifices 3<a>.  <PICT:0416516/III/1> A cap 7 is screwed to the casing 1 and forms a chamber arranged at one end of the bore 1<a> and adapted to be connected at 8<a> to a rotary pump (not shown).  A porous thimble 6 with a lining of filter material such as paper, cloth, or fused aluminium oxide is detachably held over one end of the bore 1<a> by a stirrup 10 and screw 10<a>. In use, the device is placed in the fluid stream with the pump shut off and the velocity estimated from the difference in pressure at the orifices 2<a> and 3<a>.  The velocity of the fluid entering the thimble 6 is then raised by the pump until the pressures at the orifices 2<a>, 3<a> are equal and after a given time the thimble 6 is removed and the quantity of dust &c. measured.
Patent GB-311884-A (GB)
Title: Improvements in & relating to brick kilns
IPC: F27B13/04
Filed: 1928-03-30
Abstract: 311,884. Habla, A. March 30, 1928. Continuous kilns.- In a continuous kiln comprising two parallel permanent walls' M<1>, M<2> with waste gas and hot air flues R<1>, W<1> division walls a, formed by the unburnt goods, are arranged to leave passage ways b alternately at opposite sides of the kiln, and the bricks forming these walls are set loosely so that gases can pass both through the walls and around their ends. The draught is controlled during working either by paper partitions, or by removable metal plates c inserted between the two parts of a double partition wall a. To prevent entrance of air at the top of the kiln each plate c has a sand gutter along its upper edge, into which dip sealing caps e<1>, Fig. 10. Connections. to the hot air flue W<1> are made by removable pipes. Two or more chambers may be arranged side by side and connected for continuous working by end flues, and where more than two chambers are provided one of them may be used as a drying- chamber.
Patent GB-122122-A (GB)
Title: Improvements in Street Cars.
Inventor: BEGG ALEXANDER LEWIS WORTHINGT
IPC: B61D13/00
Filed: 1918-06-14
Abstract: 122,122. Begg, A. L. W. June 14, 1918. Fares, turnstile apparatus for checking. - T h e seats 60, Fig. 4, of a tramcar are arranged in several longitudinal rows with intermediate aisles, the entrance and exit to which are controlled by a number of turnstiles 12 provided at each end of the car. The rotatable standard 18, Fig. 9, of each turnstile has two ratchet disks 19. 20, Fig. 10, at its base, one or the other of which is engaged by one or the other of two pawls 21, 22 so that the turnstile can rotate in one direction only. At its top the standard 18 carries four arms 17 whereby each arm swings round in a horizontal plane for one half of a revolution and then rises to a vertical position for the remainder of the revolution so as not to interfere with the adjacent turnstile.
Patent GB-1084713-A (GB)
Title: Improvements in or relating to aeration
Inventor: CLOUGH GEORGE FRANCIS GILBERT
IPC: C02F3/16
Filed: 1964-03-07
Abstract: <PICT:1084713/C1/1> Continuous discharge aeration apparatus for industrial effluents comprises a container 2 having a rotatable surface aerator 10 (as described in Specification 919,467) which will be effective to vary the rate of oxygen transfer according to the level of the liquid in the container. The level is adjusted in accordance with the rate of flow within a working range to keep the oxygen transfer rate constant by means of a shaped notch in an outflow weir plate 18; the notch may be rectangular, have a horizontal base with convex curved sides, or be a normally submerged horizontal slot (see Figs. 5, 6 and 7, not shown).
Patent GB-788139-A (GB)
Title: Improvements relating to air distributors for heating or air conditioning systems
IPC: F24D5/00
Filed: 1956-03-29
Abstract: 788,139. Ventilating. COTTS, L. C. March 29, 1956, No. 9895/56. Class 137 A ventilator intended particularly for installation at the lower part of a building wall, comprises a chamber 26, an inlet 32 therefor, connected to a conditioned-air supply pipe 36, and outlets 44 in a shoulder 40 between the main front wall 30 and a set back part 42, which latter directs the air upwardly substantially parallel to the wall 20. The part 42 may overhang the shoulder to prevent the air from contacting with the wall. The air supply may be controlled by a damper 50 regulated by a notched rod 60 or pivoted screw means. To ensure equal distribution from all the outlets 44, a baffle 46 may be provided, or the outermost outlets may be larger or closer together than the centre ones.
Patent GB-1108148-A (GB)
Title: Fuel assembly for nuclear reactor
Inventor: DEFREYN BRUNO
IPC: G21C3/04
Filed: 1967-03-02
Abstract: 1,108,148. Fuel elements. COMMISSARIAT A L'ENERGIE ATOMIQUE. 2 March, 1967 [3 March, 1966], No. 9930/67. Heading G6C. A fuel assembly cooled by the ascending circulation of a fluid through an axial conduit 11 has a casing 1 connected at its lower end to a cylindrical base 4 of smaller diameter, an annular recess 10 being formed in the base 4 and surrounded by a sheath 6 attached to the base 4. The sheath 6 is formed with a series of radial apertures receiving mobile studs 8 disposed in a circle around the base 4 and terminating in heads 8a in the recess 10. A conical portion 2 between the casing 1 and the base 4 bears against a fixed support 12 of the reactor. The cooling fluid enters both the recess 10 and the conduit 11 and acts on the heads 8a of the studs 8 forcing then outwardly into an annular groove 14 in the support 12. As the fluid pressure increases, so the studs 8 are more solidly anchored in the groove 14. When the fluid pressure ceases, the locking force is removed and the assembly can be withdrawn by lifting it upwards, whereupon the edge of the groove 14 cams the studs 8 inwardly into the recess 10. Alternatively, the locking members may be balls co-operating with a ring which slides in the recess and is in contact with the fluid for movement in accordance with the fluid pressure. The ring may be formed with a recess receiving the balls in the unlocked position of the assembly and a spring may be mounted between the ring and the closed end of the recess for returning the ring into the unlocked position. The ring may, alternatively, comprise two cylindrical portions, a first portion which is thin and receives the balls and a second portion which has the same thickness as the recess and is in contact with the fluid. In this case the ring drops by its own weight when the fluid pressure falls to a particular value.
Patent GB-629358-A (GB)
Title: Improvements in or relating to sound recording and reproducing apparatus
IPC: G11B5/127
Filed: 1947-04-15
Abstract: 629,358. Magnetic recording and reproducing apparatus. DUTTON, G. F. April 15, 1947, No. 9952. Drawings to Specification. [Class 40 (ii)] A magnetic recording and reproducing apparatus comprises a current - carrying conductor which lies transversely and close to a magnetic tape so that magnetic variations therein induce, or are induced by, signal currents in the conductor. The conductor may be in the form of a loop with substantially parallel limbs in order to minimise hum. The conductor may also have a rectangular cross-section 0.00025 inch wide and 0.020 inch deep with the large dimension disposed normally to the tape. It may also be coated with iridium to resist wear from the tape and may be supported on a carrier of non-magnetic material.
Patent GB-128382-A (GB)
Title: Improvements in the Manufacture of Pin and Socket Dowelling Devices.
Inventor: DUGON ALEXANDER LAMONT
IPC: B22C21/14
Filed: 1918-06-17
Abstract: 128,382. Dugon, A. L. June 17, 1918. Pins, dowel and like.-Dowel pins and plates, Figs. 5 and 7, and pins and sockets, Figs. 8 and 9, for use with patterns and core boxes for moulding metal, are made from soft metal such as lead or a mixture of zinc, copper, and aluminium by die-casting under pressure with engraved metal dies. The plates, Figs. 5 and 7, have integral centring-pins m, o. The pin, Fig. 8, has a quick coarse screw-thread. Fig. 1 shows a die in two sections a, b fitted with an ejector consisting of two pins q operated by a lever s.
Patent GB-214663-A (GB)
Title: Improvements in and relating to fire extinguishing apparatus
IPC: A62C99/00
Filed: 1924-04-22
Abstract: 214,663. Siebenmann, D. April 19, 1923, [Convention date]. Dynamos and motors. cooling and ventilating; enclosing in special media.-In fire-extinguishing apparatus for electric generators or the like, means are provided for mixing liquid carbon dioxide with a current of air which is circulated around the electric generator &c. For this purpose, the carbon dioxide bottle c is placed on its head or is fitted with a tube extending to the bottom. The electric genemtor g is enclosed in a chamber through which is drawn cooling-air, admitted by a flap valve f. Air passing out through a valve h and then through the engine house is returned through a valve r. When a fire occurs, a handle s is operated which opens the generator switch e, opens the valve i of the bottle c, closes the valves f, h, r and opens a valve u; the generator is thus cut off from the outside air and the fan v circulates air mixed with carbon dioxide through the chamber.