baber/WOPTO huggingface dataset:
Patent GB-703530-A (GB)
Title: Improvements in spectrometers
IPC: G01N21/31
Filed: 1952-06-09
Abstract: 703,530. Spectroscopes. PERKIN - ELMER CORPORATION. June 9, 1952 [June 22, 1951], No. 14483/52. Class 97(1) [Also in Group XL(b)] Apparatus for simultaneously comparing the intensity of light at two wave-lengths from one source comprises means for refracting part of a beam which is chopped by a rotating disc to allow the different wave-lengths to fall alternately on to a photocell or other detector, and means for comparing the intensities of the two wave-lengths in a phase-sensitive amplifier fed with a reference voltage. An optical system comprising a light source 10, entrance and exit slits 11, 17, lenses 14, 16 and a prism 15 is arranged so that only part of the beam passes through a refracting element 12. Both parts of the beam are focused on the exit slit 17 at different places, and pass through it to energize a photocell 18 after being chopped by a rotating disc 19 mounted on a shaft 20, also carrying a generator 21, and driven by a motor 22, the shape of the disc 19 being such that refracted and unrefracted light alternately reach the photocell 18. A chamber 13 containing a sample to be analyzed is placed in the path of the beam, and the angular positions of the prism 15 and refracting element 12 are adjusted so that the refracted and unrefracted light passing through the exit slit 17 are respectively two wave-lengths whose intensities are to be compared in a phase-sensitive amplifier fed with a reference voltage from the generator 21. The output of the light source may range from ultraviolet to infra-red. In the examination of a gaseous mixture the complete apparatus may be enclosed in the cell containing the gas. By suitable positioning of the light source and detector the entrance and/ or exit slit may be dispensed with.
Patent GB-334838-A (GB)
Title: Improvements in the production of artificial threads, filaments, ribbons, films or the like from cellulose derivatives
IPC: D01F2/28
Filed: 1929-05-09
Abstract: 334,838. British Celanese, Ltd., Roberts, R. P., Dean, R. I. R., and Gregory, L. W. May 9, 1929. Cellulose esters and ethers, processes for making filaments and films from.-Filaments, threads, films, &c. are made by extruding organic solutions of organic derivatives of cellulose into coagulation baths consisting of strong solutions of mineral acids, for example, strong aqueous solutions of sulphuric, hydrochloric, or phosphoric acid, or into solutions of acid esters of mineral acids such as ethylsulphuric acid or mono- or di-ethylphosphoric acid. As a modification, the filaments, films, &c. are extruded into any suitable coagulation baths, and are thereafter carried into a hath containing an acid ester of a mineral acid. The coagulated products are preferably given an " air-run," and are then, in order to avoid destruction by prolonged contact with the acidic substances, freed from the latter by washing with water either alone or with the addition of an alkali or a base. As regards the strength of the acid, concentrations of sulphuric acid less than 20 per cent shoutd be avoided; concentrations of 30-50 per cent are preferred; with the higher concentrations the products become more and more straw-like which is of value in the case of ribbons; similar results are obtained if the period of immersion is increased. To the acid and acid ester baths there may be added glycerine, glucose, or other sugars, alcohols or sulphonated oils, or solvents or latent solvents as described in Specification 179,234. The filaments &c. may be put under tension during spinning or during the subsequent treatment, or they may be subsequently stretched or dried under tension. In examples, acetone solutions of cellulose acetate are extruded into 30, 32, 40, and 46 per cent of aqueous sulphuric acid baths, and are subsequently passed through a bath of dilute ammonia solution, and are then washed and dried under slight tension, the products obtained with the most concentrated acid hath being much duller than those given when 32 per cent sulphuric acid is used; an acetone solution of cellulose acetate is spun into an aqueous diacetone alcohol bath and on emerging passed into an aqueous solution of ethylsulphuric acid.
Patent GB-1498517-A (GB)
Title: Rack for slides
IPC: G03D13/08
Filed: 1975-09-29
Abstract: 1498517 Racks MEDICAL WIRE & EQUIPMENT CO (BATH) Ltd 29 Sept 1975 [9 April 1975] 14573/75 Heading A4H [Also in Division G2-3 ] A rack for slides comprises carrier rods 18 for supporting a flat surface of a slide and an end stop rod 20 of larger cross-section for engagement by the edge of the slide, the rods 18, 20 spanning side walls 16 of rhomboidal shape so that the rack can be located in a first position Fig. 2 (not shown) for supporting the slide in a horizontal position for staining and a second position, as shown, for supporting the slide in an inclined position for draining, by resting the rack on respective relatively inclined edges 24, 26 of the walls 16. In a modification, the rack may have feet to support it in the two positions.
Patent GB-1456041-A (GB)
Title: Diverse signal combining arrangements
IPC: H03D7/12
Filed: 1973-03-27
Abstract: 1456041 Diversity reception MARCONI CO Ltd 15 Jan 1974 [27 March 1973] 14574/73 Heading H4L In a diversity combining arrangement of the kind in which each signal from each diverse channel A, B is connected to signal handling arrangements 2, 4 in which each channel signal is connected in parallel to two respective mixers, e.g. 5, 6, and in which the second input for one mixer 5 is derived from the output of the other 6 via a band pass filter 8, and a further band pass filter 7 is connected to apply the output signal from the one mixer 5 as a second input to the second mixer 6, the outputs from the handling arrangements for each channel being combined so as to eliminate instantaneous phase variation, the proportions of the two output signals in the combination are made dependent upon the degree of freedom of each channel signal from intermodulation products. For this purpose each bandpass filter 7, 7B has a mixer 20, 23 connected across it. The outputs of the mixers 20, 23 represent only the intermodulation products of the respective channel signals and are supplied via respective logarithmic amplifiers 21, 24 and detectors 22, 25 to a D.C. comparator 19. The outputs of the comparator control in opposite manners the adjustment of attenuators 17, 18 following the filters 8, 8B and control the amount of each signal to be combined. The arrangement may be combined with the arrangements described in specification 1,408,423 which enable the combiner to track the input signal frequencies. Space, time or frequency diversity may be used and more than two channels may be combined.
Patent GB-198694-A (GB)
Title: Improvements in and relating to floor coverings
IPC: D06N7/00
Filed: 1923-06-02
Abstract: 198,694. Byerley, A. C., and Bobbins, G. A. H. June 3, 1922, [Convention date]. Flooring slabs and tiles.-In order to facilitate renewal of worn parts floor coverings are made in two series of sections, the members of one series being cemented to or interlocked with one another, and the members of the other series being cemented to the members of the former series. Large sections A have top flanges A<1> which engage sections B with bottom flanges B<1>. The sections A may dovetail as shown or have straight edges cemented together. The flanges A<1> and B<1> are cemented together.
Patent GB-882992-A (GB)
Title: Apparatus for determining the orientation of drill cores
IPC: E21B25/16
Filed: 1960-04-26
Abstract: 882,992. Boring earth. SVENSKA DIAMONTBERGBORRNINGS A.B. April 26, 1960 [Sept. 29, 1959], No. 14610/60. Class 85. [Also in Group XX] Apparatus for determining the orientation of drill cores 2 taken up from boreholes, comprises a pin-carrier ring 7 provided with a series of axial guide channels containing a number of pins 8 which protrude therefrom towards the borehole bottom, the pins 8 being capable of only relatively sluggish movement in the channels, and means for indicating the orientation of the pin-carrier ring 7 at the moment it abuts the borehole bottom. As shown the apparatus is for use in a borehole which is inclined to the vertical and the means for indicating the orientation of the ring 7 is a ball 12 freely movable in an annular chamber between a pressure pad 10 and a flatsurfaced soft coating 11. In use the apparatus is introduced nearly to the bottom of the borehole, the latter flushed, and then the apparatus is pressed against the bottom so that the pins 8 are forced upwardly to correspond with the shape of the top of the core 2 which will be extracted and the ball 12 indicates the orientation of the ring 7 if the inclination of the borehole to the vertical is known. On pressing the apparatus down further, a plunger 13 is forced upwardly which causes a flange thereon to press ring 7 and coating 11 against ball 12 to fix it in position. Thereafter a shoulder 22 on plunger 13 contacts a ring 21 on a cylinder 20 so as to release the latter from locking pistons 19 which are therefore free to move inwards. Also the plate 15 in moving upwards with plunger 13 releases a detent 23 which springs outwardly and then spring 16 acting between plate 15 and the end of a jacket 17 connected to the orientation determining apparatus retracts it upwardly inside the boring tube 3 clear of the core 2. In a modification for use with vertical boreholes, the arrangement involving ball 12 is replaced by orientation marks on the drill tubes, the pin-carrier ring being axially displaceable but incapable of turning relative to the drill tubes.
Patent GB-1409641-A (GB)
Title: Fire extinguishing system
IPC: G11C7/02
Filed: 1973-03-27
Abstract: 1409641 Valves CHUBB FIRE SECURITY Ltd 27 March 1974 [27 March 1973] 14670/73 Heading F2V [Also in Division A5] A valve comprises a body 19 sockets 20, 21 for connection of a pipe 4, a wall 22 separating the two sockets and an annular valve seat 23. An upwardly dished cover 24 clamps a flexible diaphragm 26 against body 19, which contains at its centre a plate 28 and valve closure disc 29 made of resilient material. The space 30 forms a control chamber which is connected via spigot 31 to tube 12 in which gas under pressure either maintains the valve closed or, on falling below a predetermined pressure on rupture of a tube under heat, allows the diaphragm 26 to rise and thus allows free passage for a fluid in pipe 4.
Patent GB-1280798-A (GB)
Title: Apparatus for selectively closing a passageway
IPC: G07F17/14
Filed: 1971-05-13
Abstract: 1280798 Automatic pneumatically operated entry gates COMPAGNIE GENERALE D'AUTOMATISME 13 May 1971 [13 May 1970 11 June 1970 10 July 1970 19 Oct 1970] 14684/71 Heading E1J [Also in Division G4] An entry gate or barrier assembly, e.g. coin freed or ticket controlled initiation of operation comprises at least one inflatable pocket 41, 51, e.g. of rubber, or plastics material lined with foamed polyurethane, mounted in a recess 6, 7, on a support 2, 3, and so arranged that under normal circumstances the passage way 1 is clear, the pockets being deflated and under adverse circumstances when the coin freed mechanism does not operate correctly or an invalid ticket is presented to the device 110 for testing its validity, a signal is transmitted from the device 110 to the control system 112 which operates valves 10, 11 to connect the pockets to the source 12, 15 of compressed air to inflate the pockets 4, 5 which close the passage way 1, and at the same time valves 24, 24A break the communication between the pockets and the expansion chambers 18. Safety valve 25 avoids excessive pressure build up in the pockets and ensures when necessary direct communication between the pockets and expansion chambers 18. A signal from the photosensitive cell arrangement 30-111, is transmitted to the control system 112 when a person or vehicle breaks the light beam. Items 22, 23 and 26 cut down noise due to sudden inflation or deflation. The arrangement may be made suitable for twoway operation (Fig. 6). The inflation conduit 8, 9 terminates in a device for distributing the compressed air in a uniform manner over the internal surface of the pocket (Figs. 4, 5) which surface may be hemispherical or elipsoidal and the pockets may be of concertina form with strengthened interconnecting surfaces (Fig. 3).
Patent GB-1391284-A (GB)
Title: Material unloader
IPC: A01C3/06
Filed: 1972-03-29
Abstract: 1391284 Manure spreaders INTERNATIONAL HARVESTER CO 29 March 1972 [26 May 1971] 14789/72 Heading AID A material unloader comprises a housing 12 mounted on a mobile frame 10, a rotary flail structure within a material chamber 16, an auger 62 disposed along the edge of the chamber 16, and a rotor structure 76 disposed in a discharge chamber 18 separated by a partition 28. The flails comprise chains 56 with T-shaped ends 58 mounted at spaced intervals along a shaft 54 on the end of which is mounted the rotor structure 76. The flails, rotor and auger are driven from the P.T.O. shaft of a tractor through a shaft 86 and chain drive (100), (106), Fig 2 (not shown), the auger rotating in the opposite direction to the flails and rotor. The flails supply material to the auger along its length at a rate controlled by a vertically adjustable plate 66 supported by a pair of cables 68 secured to a shaft 70 having a crank (72) and a pawl and ratchet (74), Fig 2 (not shown), at its forward end. The auger 62 then delivers the material through an opening 64 to the rotor 76 via a shute 50. The chamber 16 is loaded through a cover 36 operated by a hydraulic piston and cylinder unit 40.
Patent GB-987649-A (GB)
Title: In-line waveguide calorimeter for microwave power measurement
IPC: G01R21/04
Filed: 1963-04-16
Abstract: 987,649. Power measurement. UNITED STATES ATOMIC ENERGY COMMISSION. April 16, 1963 [May 14, 1962], No 14812/63. Heading G1U. Apparatus for measuring the average microwave power in a waveguide comprises heat-sink means for regulating the temperature along a portion of the waveguide and temperature-sensing means for indicating the temperature change in the regulated temperature upon passage of microwave power through the waveguide. In Fig. 1 the measuring section of waveguide 12 is provided at each end with flanges 14 and 16 which are cooled by the passage of coolant fluid through passageways provided in them. Resistances 32 and 38 are wound round the waveguide adjacent the flanges 14 and 16, and resistances 34 and 36 are wound round the centre of the waveguide. The four resistances are connected in a bridge circuit to give a measure of the temperature difference between the centre and the ends of the guide, this temperature difference being proportional to the power of the microwaves within the guide. The waveguide should be an integral number of wavelengths long and should be of lossy material such as stainless steel or may be of copper coated internally with stainless steel or graphite. The temperature may be measured by thermocouples instead of resistances. In a modification, Fig. 4 (not shown), the heat sinks are adapted to be clamped about an existing waveguide.
Patent GB-742699-A (GB)
Title: Manufacture of bisdimethylamino-fluorophosphine oxide
IPC: C07F9/26
Filed: 1952-07-11
Abstract: The invention comprises a process for making bis - dimethylaminofluorophosphine oxide by the action of alkali metal or ammonium fluorides, excluding ammonium bifluoride, in aqueous solution on bisdimethylaminochlorophosphine oxide in presence of an inert water-immiscible solvent for the product.  In examples the reaction is performed in toluene, chlorobenzene, chloroform and benzene.
Patent GB-899975-A (GB)
Title: Improved line-throwing apparatus
Inventor: SCHERMULY CONRAD DAVID
IPC: F42B12/68
Filed: 1960-04-28
Abstract: 899,975. Line-throwing apparatus. SCHERMULY PISTOL ROCKET APPARATUS Ltd. April 14, 1961 [April 28, 1960], No. 14879/60. Class 77. A rocket-type line-throwing apparatus comprises a casing containing a rocket launching support means and a flaked line, a substantial part of which is disposed around the support means. A line-throwing apparatus comprises a casing 1 having a removable lid 3 and a screwed cap 2 to which cap a rocket launching tube 4 is so attached as to extend within the casing in spaced relation to the casing, the space housing a line 5 flaked in layers of a substantially equal length in the longitudinal direction of the casing and having alternate layers wound as helical coils. The line is attached by a yoke 9 to the casing 7 of the rocket 6 by a steel cord 11 which passes along the tube 4 in an axially disposed channel 12, and the free end 13 of the line lies below the lid for convenient removal on firing of the rocket. Specification 899,976 is referred to.
Patent GB-861085-A (GB)
Title: Improvements in or relating to gas cigarette-lighters
IPC: F23Q2/16
Filed: 1959-05-01
Abstract: 861,085. Cigarette lighters. ZAHN, H. May 1, 1959 [May 3, 1958; June 19, 1958], No. 14944/59. Class 75 (3). In a lighter comprising a spring loaded finger piece 7 adapted to rotate a flint wheel 3 to ignite gas flowing from a tank 14, the finger piece 7 is supported on the top frame 13 of the lighter on a pivoted arm 8 so as to be movable both downwardly and away from the flint wheel, and the pivoted arm 8 is in constant contact with a rocker 11 adapted to open a gas valve 15 on the gas tank 14. The front end of the finger piece 7 is coupled to a cap 1 pivoted about the axle pin 2 of the flint wheel 3. The pivoted arm 8 is returned by a spring 12 and has an extension 10 extending downwardly into contact with the rocker 11. The rocker 11 is mounted on two bearing bosses 16 formed on the. gas tank and the end of the rocker engages the stem of the gas valve 15. An outer casing 14 is placed over the gas tank and the frame 13. In a modification, Figs. 3, 4 (not shown), an end of the rocker extends upwardly to contact the middle of the pivoted arm 8 and bearing bosses are formed on the rocker instead of on the gas tank. The rocker may be constructed in the form of a box spanner or adjusting key. The gas tank has a blind hole for the reception of the flint tube.
Patent GB-1527945-A (GB)
Title: Fluid-conveying systems
IPC: B65G51/06
Filed: 1976-04-13
Abstract: 1527945 Pneumatic despatch carriers VSES NI I PROEKTNO-KONSTRUK INST PO TRUBOPROVODNYM KONTEINERNYM SISTEMAN VNIIPITRANSPROGRESS 13 April 1976 14996/76 Heading B8A A carrier is propelled along a conduit either with or against the flow of gas therein; the carrier having turbine blades 3 and circumferentially spaced supporting rollers 5 in driven connection therewith and at an angle to the flow of gas, the direction of the angle determining the direction of motion of the carrier. The turbine blades and rollers may be fixed relative to the carrier or rotatable relative thereto.
Patent GB-233186-A (GB)
Title: Improvements in or relating to liquid fuel burners
IPC: F23D11/10
Filed: 1924-06-24
Abstract: 233,186. Jackson, W. J. Mellersh-, (Sherman, J. A.). June 24,1924. Spray burners; oil supply.-A liquid fuel burner particularly suitable for employment in a heating system such as is described in Specification 237,074 comprises a hollow casing 6 fitted with a nozzle member 12 and communicating with a compressed air supply pipe 24, and a hollow rod 15 slidable in the hollow casing 6 and having an apertured conical tip 22. The casing 6 is provided with a neck 7 secured by a nut 11 to a tank 3 to which fuel, supplied by gravity or other means, is maintained at a constant level by a float-controlled valve 4. A passage 9 in the neck 7 allows the air pressure in the casing 6 to be communicated to the fuel in the tank 3. The air issuing from the nozzle member 12 induces a flow of oil through the hollow rod 15 which communicates by means of an aperture 21 with a passage 8 in the neck 7 fitted with a pipe 10 extending nearly to the bottom of the tank. The rod 15 is threaded into a cap 17 at the end of the casing 6 so that rotation of the cap adjusts the size of the opening 21 and the position of the tip 22 in relation to the nozzle member 12. A set-screw 20 engaging a groove in the rod prevents rotation of the rod and may be used to secure it in position.
Patent GB-593639-A (GB)
Title: Improvements in and relating to checker bricks for hot blast stoves
IPC: C21B9/06
Filed: 1945-06-15
Abstract: 593,639. Checker brickwork for air heaters. BURGESS, A. F. (Freyn Engineering Co.). June 15, 1945, No. 15265. [Class 64 (i)] A refractory checker brick for a hot blast stove has a cross-section in the form of a pentagon which has four sides 16 co-linear with four of the sides of a regular hexagon, the fifth side 24 of the pentagor lying at right angles to ar axis 21 about which the first four sides 16 are symmetrical and being located either at or inwardly of the corner of the hexagon located on that axis. The brick is formed with holes 17, 18, recesses 20, 25 on its sides, and a recess 19 and groove 27 in its top surface. In a form in which the fifth side of the pentagon is located inwardly of the corner of the hexagon, the recesses corresponding to 25 instead of being semi-crcular are extended to the fifth side, and the groove in the top of the brick extends from one of the recesses diagonally across the brick. In an assembly of hexagonal bricks to form the checkerwork of a hot blast stove with a cylindrical shell, pentagonal bricks and half hexagonal bricks are used on alternating parts of the periphery of the checkerwork to form flat surfaces adjacent to the ring wall between the checkerwork and the shell.
Patent GB-1443262-A (GB)
Title: Conveyors for interspacing articles
Inventor: JABBUSCH ROBERT OTTO
IPC: B65G47/28
Filed: 1974-04-05
Abstract: 1443262 Longitudinally spacing conveyed articles FMC CORP 5 April 1974 [1 June 1973] 15328/74 Heading B8A In an endless conveyer comprising transversely extending rollers, groups of the rollers are idlers and are separated by driven rollers operative to position conveyed articles on the idlers and thus space the articles. As shown in Figs. 2 and 4 rollers R extend between endless chains 62, a pair of idler rollers R-O being blanked by a leading roller R-L, driven in a clockwise direction by engagement with a stationary rail 68, and by a trailing roller R-T driven in an anticlockwise direction by engagement with a stationary rail 72. Articles P-1, P-2, P-3 are fed to the conveyer from an abutting series on a feed conveyer 28. In various modifications (Figs. 7-10) two leading rollers RL are driven in one direction by contact with an interrupted stationary rail (68A) and are separated from a trailing roller R-T, driven in the opposite direction by contact with a rail (72A), by two rollers R-O; two leading rollers R-L are separated from two trailing rollers R-T by two idlers RO, the leading and trailing rollers being rotated in opposite directions by driven endless belts (68B, 72B); and a pair of leading rollers RL are followed by a pair of idlers and a pair of trailing rollers, the leading and trailing rollers engaging fixed guide tracks and rotating in the same direction. As shown in Fig. 11, spaced pairs of rollers 92 carried by chains 88, 90 are engaged and rotated by rollers 126 carried by chains 100 and engaging a fixed track 128. In Fig. 13, trailing rollers RT just engage a portion 144 of a fixed track 142 and are rotated in the same direction as leading rollers RL, but then engage a fixed track 148 for rotation in the opposite direction, the leading rollers engaging a portion 146 of the track 142 for rotation in the original direction.