baber/WOPTO huggingface dataset:
Patent GB-1335134-A (GB)
Title: Combustion apparatus of a gas turbine engine
IPC: F02C3/34
Filed: 1971-06-22
Abstract: 1335134 Gas turbine combustion chambers NISSAN MOTOR CO Ltd 22 June 1971 [5 Dec 1970] 29153/71 Heading F1L To reduce noxious compounds in the exhaust gases of a gas turbine engine a portion of the combustion gases in a combustion chamber of the engine is diverted from the chamber, cooled by air and recirculated back to the chamber inlet. In one arrangement some of the gases from combustion space 11 are diverted through holes 15 in inner wall 10 and recirculated back to chamber inlet 12 through an annular passage 18 defined by a surrounding intermediate wall 17. The latter is surrounded by an outer wall 13 defining a passage 14 which is supplied with air from the engine compressor. Some of the air enters combustion space 11 through holes 16 as secondary air, while the remainder flows past fins 20, 20' to the chamber inlet 12 as primary air and in so doing effects cooling of the hot gases recirculating through passage 18. Mixing of the primary air with fuel and with recirculating hot gases is assisted by swirler 19. In a modification Fig.3, (not shown) the single annular recirculating passage 18 is replaced by several angularly spaced passages (18a) of semi-circular cross-section. The portions of inner wall 10 between the spaced passages (18a) are thus in direct contact with the air in annular passage 14 and are provided with holes (21) for the admission of cooling air into combustion space 11.
Patent GB-702997-A (GB)
Title: An air-operated liquid detergent dispensing apparatus
Inventor: IRONSIDE JAMES GARRICK SUTHERL
IPC: A47L15/44
Filed: 1950-11-29
Abstract: 702,997. Disinfecting sinks &c. GASKELL & CHAMBERS, Ltd. Feb. 26, 1952 [Nov: 29, 1950], No. 29182/50. Class 26. [Also in Groups II and XXVIII] Apparatus for dispensing liquid detergent from a sub-container b disposed within a main container a, comprises an air-pressure pipe h communicating with a hollow fitting i adapted to be immersed in a sink j so that the water flowing into the sink enters the fitting and compresses the air trapped in the pipe h which causes the detergent to be discharged through a pipe g. When the air pressure is released, further detergent flows into the sub-container from the main container a through a passage c, check valve f and passages d, e. The check valve is closed during discharge of the detergent.
Patent GB-300774-A (GB)
Title: An improved incubator for the hatching of chickens
IPC: A01K41/00
Filed: 1927-11-02
Abstract: 300,774. Coward, A. L. Nov. 2, 1927. Hatching-appliances.-An incubator of the kind comprising an upper heating chamber 18, supplied with hot air, and a lower egg chamber 19 separated therefrom by a permeable diaphragm 20 and divided into two compartments by an eggtray 22, the lower compartment being provided with a water tray 25, is formed as a box having double walls 10, 11, 12, 13, the space between such walls being packed with a non-conducting material, and also at opposite ends having false inner walls 17. The space 33 between the false walls 17 and the inner walls 10 communicates with the outer air through passages 28, 30 that can be closed by slides 29, 31 respectively. Partitions 32 extend between the inner and the false walls at the level of the bottom of the egg tray. If the top slides 29 are open and the bottom 31 closed, air flows from the egg chamber through openings 35 into the space 33 and escapes through the upper passage 28, water vapour also rising from the tray 25, passing through the bottom of the egg tray 22 and escaping with the air. Should the air be sufficiently humid the top slides 29 are closed and the lower ones 31 opened, air then flowing from the egg chamber past and through the egg tray to opening 36 by which it escapes to the passages 30.
Patent GB-694704-A (GB)
Title: Improvements relating to bearings in electric switches
IPC: F16C33/06
Filed: 1951-12-13
Abstract: 694,704. Bearings. BUSCH-JAEGER LUDENSCHNEIDER METALLWERKE AKT.-GES. Dec. 13, 1951 [Dec. 16, 1950], No. 29260/51. Class 12 (i). In an electric switch, a sleeve 2 of hardened steel or surface hardened iron is keyed to a control shaft 6 and is rotatably mounted in a bearing cross-member 1 of soft iron. The sleeve 2 has a shoulder 3 located in a recess in the member 1.
Patent GB-1310286-A (GB)
Title: Servovalves
IPC: F15C1/04
Filed: 1970-06-17
Abstract: 1310286 Fluid-pressure servomotor systems; transducers MOOG Inc 17 June 1970 [1 July 1969] 29313/70 Headings G3H G3P A servovalve has two body parts 22, 29 detachably connected by bolts 33 which hold three layers 39, 40, 41 of a fluidic amplifier under compression in a recess 36 of the body part 22. A torque motor 23 is bolted to the top of the body part 22 and is formed by an armature 153 between permanent magnets (170) and coils 171. A flexure tube 139 connects the armature to a mounting flange 136 and an elongated spring 158 depends from the armature and detachably mounts  a slotted deflector 160 for a hydraulic jet 66 of  the amplifier. The latter has two receiver channels 78, 79 which connect by passages 107, 117 to the chambers 102, 104 of a spool valve slidable in bushing 92 of the body part 29. A pressure port 113 connects via passages 127, 131, 134 with the jet 66 and annular spaces 130, 133 while annular space 122 connects with a return port 114 and annular spaces 126, 128 connect with work ports 115, 116. A signal fed into the torque motor moves the deflector 160 laterally to deflect the jet more into one of the channels 78, 79 than the other. The pressure in one of chambers 102, 104 thus becomes greater than in the other so that the spool moves to connect one work port to fluid pressure and the other to return. The end of spring 158 has a ball thereon which is received in a groove 164 of the spool and acts to feed back the spool movement to the deflector 160.
Patent GB-1214687-A (GB)
Title: Improvements in tape handing control systems
IPC: G11B15/12
Filed: 1968-06-20
Abstract: 1,214,687. Feeding record tapes. NEWELL INDUSTRIES Inc. 20 June, 1968 [26 June, 1967], No. 29361/68. Heading G5R. In a bidirectional transport feeding tape between two rolls of tape, detection of a recorded control signal in the main information channel being played back and thereafter of a reduction in the level of the recorded main information signals to a predetermined value causes reversal of the tape drive and switching of the playback heads to play back another channel. As described, the control signal is a 25 Hz. tone in the two tracks of a stereophonic recording, the components in the two tracks being recorded 180 degrees out of phase with each other. In the absence of the control signal, tape reversal or some other control operation is initiated by the detection of silence in the main information channel being played back, e.g. at the end of the recording or due to improper feeding or loading of the tape.
Patent GB-680136-A (GB)
Title: Improvements relating to combustion systems for jet engines
Inventor: LAWRENCE OWEN NAPIER
IPC: F02K3/10
Filed: 1949-11-17
Abstract: 680,136. Jet propulsion plant. LUCAS, Ltd., J. Oct. 23, 1950 [Nov. 17, 1949], No. 29411/49. Class 110 (iii) [Also in Group XXIX] In a jet propulsion engine in which additional fuel is admitted to the jet pipe, the rate of supply of the additional fuel is varied by means responsive to the joint control of the pressure of the air at the compressor inlet and the pressure of the gas in the jet pipe between the turbine and the point of admission of the additional fuel. A control means 14 comprises a lever s pivotally mounted in a partition or, as shown, carried by a flexible diaphragm t which separates two compartments u, v. Compartment u is in communication with the inlet of the fuel pump g or with a sump. Compartment v communicates by way of a passage 4 with the inlet of the compressor c. A diaphragm 3 which is connected by a link z to the lever s is subject on one side to the pressure in the compartment v and on the other side, by way of a passage 5, to the pressure of the gases on the exit side of the turbine d. A lever 6 is loaded by a spring 7 and an evacuated capsule 8, and acts on the lever s through a slidable abutment 9. The position of the abutment 9 can be manually adjusted through a lever 10 so as to vary the relative effects of the two pressures on the lever s. When a valve r carried by the lever s is closed, the liquid pressures acting on opposite sides of the piston j<SP>1</SP> of a servomotor 12 through a passage o<SP>1</SP> and a restricted passage p<SP>1</SP> are balanced, and a spring k<SP>1</SP> moves a throttle 11 in a direction for increasing the supply of fuel to a re-heat burner f. When the valve r is opened, there is a preponderating liquid pressure on one side of the piston in opposition to the spring, and the throttle is moved so as to reduce the supply of fuel. To control the supply of fuel to the main burners b, a control means 13 of any conventional type acts through a servomotor 15 similar to the servomotor 12, to vary the obliquity of the swashplate h of the fuel pump. In a modification, the throttle 11 and the control means 13 are eliminated, and the fuel pump g supplies fuel to the burner f only, the control means 14 operating the swashplate servomotor 15. Alternatively, the servomotor 15 may actuate a throttle in the supply pipe leading to the burner f, or may open a by-pass whereby fuel is diverted from the burner. According to the Provisional Specification, the control means 14 comprises a single lever, one arm of which is connected to a diaphragm or piston, one side of which is in communication with the turbine discharge pressure. The other arm is loaded by a spring and an evacuated capsule exposed to the compressor inlet pressure. The lever is supported by a fulcrum. the position of which is controlled manually.
Patent GB-382421-A (GB)
Title: Improvements in or relating to septic tanks
IPC: C02F3/28
Filed: 1931-10-23
Abstract: 382,421. Septic tanks. COMMIN, F. J., 5, Victoria Street, London. Oct. 23, 1931, No. 29489. [Classes 33 and 111.] Septic tanks are constructed of asbestoscement or other non-corrosible sheeting moulded to shape. The tank is preferably made in two or more sections 1, 2 with cemented joints, and may have strengthening pieces 4. It is provided with an inlet pipe 5 opening below the liquid level, and with an outlet pipe 11 having a horizontal portion which is slotted at 10 and extends across the whole width of the tank.
Patent GB-501509-A (GB)
Title: Improvements in and relating to guard rails for attachment to motor vehicle bumpers
IPC: B60R19/52
Filed: 1938-10-12
Abstract: 501,509. Vehicle collision guards. PHIPPS, E. Oct. 12. 1938, No. 29576. [Class 103 (ii)] A pair of upper and lower guard rails 8, 9, for connection with a motor vehicle bumper 7, have vertically extending ends 10, 14 with offset sections 11, 15 terminating in eyes through which pass bolt members 12 slidable on the upper guard rail 8 and carrying nuts 16 locking the guard rails to the bumper and to each other.
Patent GB-897337-A (GB)
Title: Improvements in or relating to threshing machines
IPC: A01F12/00
Filed: 1960-08-26
Abstract: 897,337. Thrashing machines. CLAAS, H. Aug. 26, 1960 [Sept. 5, 1959], No. 29615/60. Class 6(3). In a thrashing machine there are provided behind the beater drum 15 and adjacent thrasher concave 16, two drums 17, 18 which rotate in the same sense as the beater drum and a grating 19 which extends beneath the drums 17, 18 between the thrasher concave and the straw shaker 20. The rear drum 18 may be driven at a lower peripheral velocity than the drum 17 and may be displaceable to a parallel position.
Patent GB-340332-A (GB)
Title: An improved aluminium alloy
IPC: C22C21/12
Filed: 1929-10-01
Abstract: In making castings of the aluminium alloys described in the parent Specification and in Specification 340,331, an amount of sodium not more than 0,01 per cent is added before pouring, to effect cleaning and deoxidation of the alloy.  A trace of sodium may remain in the product.
Patent GB-1212724-A (GB)
Title: Improvements in or relating to discharge valves for pressurized aerosol dispensing containers
IPC: B65D83/14
Filed: 1968-06-21
Abstract: 1,212,724. Dispensing liquids under gaseous pressure. PITTWAY CORP. [trading as SEAQUIST VALVE CO.] June 21, 1968 [July 6, 1967], No.29684/68. Heading F1R. [Also in Division F2] A discharge valve for a pressurized aerosol dispensing container comprises a valve member 16 spring-loaded into sealing engagement with a sealing gasket 20, and unseated by tilting or axial movement of a valve stem 14 engaging a recess in the valve member. In Fig. 4, the inner end of valve stem 14 is conical and engages a frusto-conical recess in valve member 16. A ledge 72 is provided in the recess for engagement by the end of the valve stem when fully tilted, so that the valve is held open, Figs. 5 and 6 (not shown). In Fig. 1 (not shown), ledge 72 is omitted, and the cone on the end of the valve stem is of smaller angle than that of the recess, the clearance providing a swirl and expansion chamber action. In Fig. 13, valve member 16 is reversible with corresponding top and bottom recesses. Valve stem 14 has an insert 145 providing a disc portion 146 engaging recess 142. In Figs. 7 to 10 (not shown), disc portion 146 is integral with the valve stem with various arrangements of orifices and grooves between the valve member and valve stem, the Fig. 7 embodiment being operable only by tilting.
Patent GB-631245-A (GB)
Title: Improvements in or relating to coating compositions
IPC: C09D127/06
Filed: 1946-10-04
Abstract: Metal surfaces are coated with compositions comprising a petroleum hydrocarbon resin, a vinyl resin and a common solvent; the vinyl resin being a copolymer of a major proportion of a vinyl halide and the remainder vinyl acetate; and the hydrocarbon resin being a heat-reactive and partially polymerized resin derived from olefins and diolefins produced by thermal decomposition of high boiling petroleum hydrocarbons (see Group IV (a)).  On baking to temperatures of 300-600 DEG  F., a migration and stratification is produced whereby the thermoset hydrocarbon resin is adjacent the metal surface and the vinyl resin forms the external surface.ALSO:A coating composition comprises a petroleum hydrocarbon resin, a vinyl resin and a common solvent; the vinyl resin being a copolymer of a major proportion of a vinyl halide and the remainder vinyl acetate; and the hydrocarbon resin being a heat-reactive and partially polymerized resin derived from olefins and diolefins produced by thermal decomposition of high boiling petroleum hydrocarbons and characterized by high iodine number and solubility in aromatic and petroleum naphtha hydrocarbons, ketones and esters.  The hydrocarbon resin is preferably in an amount of from 5-40 per cent and the vinyl resin 60-95 per cent by weight of dry solids.  The resins are preferably mixed together in the form of solutions.  Suitable solvents are methyl ethyl or isobutyl ketone, isophorone, cyclohexanone, 2-nitro-paraffin, mesityl oxide, di-isobutyl ketone, methyl n-amyl ketone, toluol, xylol, naphtha, and hydrogenated naphtha.  Pigments, dyes, lakes and metallic, e.g. aluminium, powders may be added.  The compositions may be applied to metal surfaces and baked at 300-600 DEG  F., producing a migration and stratification whereby the thermoset hydrocarbon resin is adjacent the metal surface and the vinyl resin forms the external surface.
Patent GB-490577-A (GB)
Title: High pressure metallic vapour lamp
IPC: H01J61/00
Filed: 1937-10-30
Abstract: 490,577. Metal-vapour lamps. VEREINIGTE GLUHLAMPEN UND ELEKTRIZITATS AKT.-GES. Oct. 30, 1937, No. 29758. Convention date, Oct. 31, 1936. [Class 39 (i)] In high-pressure metal-vapour discharge lamps, the light from the discharge is modified by the addition of bodies disposed between the discharge and the.wall of the lamp and heated to incandescence by the heat of the discharge. The incandescent bodies are preferably of tungsten and are formed so as to provide the minimum obstruction to the light of the discharge, for example, they may be of helical or spiral form surrounding the discharge or arranged alongside of it. Alternatively they may be in the form of plates or bands disposed in planes radial to the discharge.
Patent GB-408892-A (GB)
Title: Improvements in or relating to ram pumps
IPC: F04B53/00
Filed: 1933-10-27
Abstract: 408,892. Ram pumps. SWAINSON, R. A., 97, High View, Wallsend, Northumberland. Oct. 27, 1933, No. 29805. [Class 102 (i).] In a ram pump the cylinder, suction and discharge valves and seats, relief valve, suction chamber, strainer, suction connection and stuffing box are arranged to form a conical cylinder unit which can be easily removed as a whole. The suction valve and the discharge valve k are of the circumferential type and are constituted by a rubber band or several metal elements. The conical cylinder unit c is held in the casing a by nuts d and e. In a modification the strainer n is formed on the peripheral surface of the cylinder extension and the suction connection is parallel to the discharge connection.
Patent GB-392824-A (GB)
Title: Improvements in or relating to pumps for volatile liquid fuels
IPC: F02M59/02
Filed: 1932-10-25
Abstract: 392,824. Fuel pumps. HESSELMAN MOTOR CORPORATION, Ltd., 56, Kingsway, London.-(Assignees of Hesselman Motor Corporation Aktiebolaget; Henriksdal, Stockholm.) Oct. 25, 1932, No. 29852. Convention date, Oct. 29, 1931. [Class 102 (i).] In a petrol pump penetration of leakage to lubricated parts is prevented by means of a current of air. Fig. 2 shows a fuel-injection pump in which a current of air is passed through the tappet chamber 11 by means of a fan, or by a connection 14 to the engine induction pipe. A screen 15 may be fixed over the tappet guide 18 and may be provided with a wiper for the tappet. A multi-cylinder pump is constructed in a similar manner.
Patent GB-698551-A (GB)
Title: Television transmitting apparatus
Inventor: COPE JOHN EDWARD
IPC: H01J29/02
Filed: 1950-12-06
Abstract: 698,551. Cathode-ray tubes. PYE, Ltd. Dec. 6, 1951 [Dec. 6, 1950], No. 29931/50. Class 39(i) [Also in Group XL(b)] The invention relates to the reduction of "flare " in storage-type television pick-up tubes employing high velocity scanning such as, for example, iconoscopes and image-iconoscopes. The phenomenon is considered to arise due to the tendency of secondary electrons released during scanning to migrate in the direction opposite to the movement of scanning. The positive changes resulting from scanning are, therefore, less neutralized towards the bottom of the scanned area and this portion of the picture appears white with a reduction in the depth of modulation. In accordance with the invention, and as illustrated in Fig. 2, the frame flyback period Tr of the scanning beam is delayed with respect to the commencement of the frame blanking interval Tb of the radiated signal, and during the delay interval Td the scanning beam is caused to scan additional lines at the end of the frame outside the area defining the picture to be radiated whereby the secondary electrons released by the scanning of these additional lines, being in close proximity to the area where "flare" occurs, will tend to be redistributed over this area and thereby reduce the positive charge. As shown in Fig. 2, the intensity of the scanning beam current is increased during the delay period in order to release a greater number of secondary electrons, and the velocity of scan is increased so that the additional lines are more widely spread and the redistribution of secondary electrons over the most bottom areas of the picture to be transmitted is more effective. Fig. 3 shows a circuit for carrying out the invention. A delayed saw-tooth waveform is applied to the frame scanning coils through a transformer 5 and peaking pulses are added to the wave through a cathode follower 6 to produce the wave shown in curve b, Fig. 2. The blanking wave of curve c is applied to the control grid. The area scanned by the additional lines may comprise an area of the target or a separate member having an increased secondary emission ratio. The area may also be conductive and connected to a source of potential which is maintained constant or varied during the scanning period. In another embodiment, Fig. 1 (not shown), the velocity of the scan is maintained constant during the delay period and the intensity of the scanning beam is not increased.
Patent GB-405415-A (GB)
Title: Improved yarns or threads and the manufacture of the same
IPC: D04D3/00
Filed: 1932-10-26
Abstract: 405,415. Yarns made from chenille. MORTON, J., Tuethur, Carlisle. Oct. 26, 1932, No. 29938. [Classes 120 (iii) and 142 (iv).] A round yarn having a felted or matted sur face is produced by subjecting a Chenille or other tufted thread to a combined rolling and pressing operation which separates, crushes and rolls the fibres of the tufts about the core and causes them to felt together or intermingle. The tufts are felted by passing the chenille thread 20, Fig. 12, between a thread conveying band 30 and a presser block 33 to which a crosswise reciprocatory motion is imparted by any suitable mechanism, a stationary supporting table 32 being provided beneath the band. Alternatively the tufted thread may be passed between two travelling bands 30, 40, Fig. 10, one or both of which may receive a crosswise movement, the bands being pressed together by two spring-urged presser blocks 32, 42. The original twist may be taken from hard twisted tufts prior to felting by passing the thread between members 50, 51, Fig. 12, one of which is movable in a direction inclined to the direction of movement of the thread.
Patent GB-729501-A (GB)
Title: Improvements relating to grabs
Inventor: CHILD ALBERT
IPC: B66C3/16
Filed: 1952-11-27
Abstract: 729,501. Grab-buckets; opening and closing mechanism. PRIESTMAN BROS., Ltd. Nov. 27, 1953 [Nov. 27, 1952], No. 30121/62. Class 78(4). A wide opening grab is operated by a member 16 moving along the line bi-secting the angle between the arms 6 of the grab and bearing upon downwardly diverging radial or nearly radial surfaces 13 on the arms. In the construction illustrated, the member 16 is the cross-head of a double-acting pneumatic ram 3 and is rigid with arms 15 bearing rollers 14 which engage in slots 12 providing the surfaces 13 and formed in plates 11 secured to the arms 6. The pivots 4 of the arms 6 on the head are joined by a link 9 and teeth 10 on the arms ensure their synchronism. The pneumatic ram 3 may be replaced by a hydraulic ram or a screw jack operated. by a reversible electric motor.
Patent GB-264462-A (GB)
Title: Apparatus for returning water of condensation to steam boilers
IPC: F22D5/08
Filed: 1926-11-29
Abstract: 264,462. Krantz, H. [Firm of]. Jan. 18, 1926, [Convention date]. F'eedwater, supplying and controlling. - In gravity-feed apparatus for returning water of condensation to a boiler and having floatcontrolled steam admission and outlet valves 2, 3, a second steam outlet valve 4 beyond the main steam outlet valve is so controlled that it is automatically closed as soon as water begins to enter the apparatus. The water admission valve 5 carries a contact 9 in the circuit of an electromagnet 7 operating the steam outlet valve 4. When the admission valve 5 is raised upon the entry of water, the electric circuit is broken and the electromagnet releases the valve, which them closes. The electric circuit may also be brokem by the fall of a float 6 in the water supply pipe, thus closing the steam outlet valve 4 when no water is being supplied. A contact 8 connected to the float arm closes the circuit when the steam outlet valve 3 is open, and breaks the circuit when the steam outlet valve is closed.