baber/WOPTO huggingface dataset:
Patent GB-722863-A (GB)
Title: Improvements in or relating to adsorbent or catalytic compositions containing basiccalcium phosphate
IPC: B01J27/18
Filed: 1952-10-29
Abstract: A catalyst is prepared by forming into shapes an intimate plastic mixture comprising basic calcium phosphate at least as alkaline as hydroxyapatite, clay, powdered active carbon, and water, and heating the shapes in substantial absence of air to harden them.  The shapes may be formed by augur extrusion and are heated at a temperature below that at which the clay vitrifies. A preferred clay is attapulgite.  Starch or other carbonizable organic material may be included in the mixture.  The calcium phosphate may be formed in situ in the mixture by adding a phosphate to a water suspension of lime, clay, and carbon. Reference is made to the catalysis of organic reactions, for example the hydrolysis of chlorinated hydrocarbons to the corresponding hydroxy compounds, e.g. the conversion of chlorbenzene to phenol.ALSO:An adsorbent, particularly useful in the refining of cane sugar liquors, is prepared by forming into shapes an intimate plastic mixture comprising basic calcium phosphate at least as alkaline as hydroxyapatite, clay, powdered active charcoal, and water, and heating the shapes in substantial absence of air to harden them. The shapes may be formed by auger extrusion and are heated at a temperature below that at which the clay vitrifies.  A preferred clay is attapulgite.  Starch or other carbonisable organic material may be included in the mixture.  The calcium phosphate may be formed in situ in the mixture by adding a phosphate to a water suspension of lime, clay, and carbon.  The adsorbent, compared with natural bone char or the adsorbent prepared according to Specification 561,047, has a greater area per unit weight in pores of 100 Augstrom units or larger.
Patent GB-1105269-A (GB)
Title: Photosensitive semiconductor devices
IPC: H01L29/00
Filed: 1965-06-28
Abstract: 1,105,269. Photo-sensitive field-effect transistor. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. 28 June, 1965 [1 July, 1964], No. 27263/65. Heading H1K. A photo-sensitive device comprises a semiconductor body provided with two contacts and a gate electrode between the contacts, the gate electrode comprising a photo-sensitive layer separated from the body by a blocking layer. The potential drop through the body produces a potential drop in the layer which may be decreased by irradiating the layer thus varying the capacitive action on the body and hence the space charge and current in the body. The capacitive action of the gate electrode may also be varied electrically. A glass plate 1 has two gold electrodes 2 and 3 evaporated thereon with a 10 Á gap 5 therebetween and a layer 4 of SnO covering the electrodes. A blocking layer 7 of silicon oxide is added and overlaid with a photo-sensitive layer 8 of CdS or CdSe doped with Cu and Cl. Optionally the layer 8 is coated with black lacquer except above the gap 5. The device can be irradiated from above (9) or-below (10) since the layers 4 and 7 are transmissive to the radiation used i.e. 3500-9000 Š. Another optional feature is the provision of a transparent or grating-like metal layer 15 on layer 8 immediately above gap 5. This helps in the capacitive control of the layer 4, the photosensitive layer having dielectric properties when not irradiated. The oxide layer 7 may be replaced by a thin polymeric layer or black lacquer. In another embodiment the blocking layer may be formed by the junction between the semi-conductor layer 4 and the photosensitive layer 8, the two layers being of materials having forbidden energy gaps of different widths and/or a PN junction. Alternatively the thickness or impurity concentration of the photo-sensitive layer may be sufficient to prevent radiation reaching the junction or the material of the photo-sensitive layer is such that radiation produces only majority carries thereby keeping current across the junction to a minimum. The semi-conductor layer 4 may also be Ge whilst the photo-sensitive layer 8 may be GaP.
Patent GB-1021940-A (GB)
Title: Novel monoazo dyes and their use as photographic dye developers
IPC: C07D231/22
Filed: 1963-07-10
Abstract: The invention comprises monoazo dyes of formula <FORM:1021940/C4-C5/1> wherein W is a -CON(R2)R3 group, R2 and R3 each being hydrogen or an aliphatic radical or together forming a ring with the N atom, Ar is an aryl radical, M and X are alkylene radicals, n and p are each 0 or 1 and each Y is an ortho- or para-dihydroxyphenyl radical.  The dyes are prepared by diazotizing an amine of formula Y1-(X)p-Ar-NH2, coupling the diazonium compound with a compound of formula <FORM:1021940/C4-C5/2> wherein Z is an alkyl group and Y1 is an acylated derivative of the dihydroxyphenyl radical, and replacing the 3-alkoxycarbonyl by a 3-carbamyl group by reaction of the dye with an excess of amine HN(R2)R3 which also saponifies the acyloxy groups of the Y1 residues.  The dyes are used as dye developers in photographic compositions (see Division G2).
Patent GB-907200-A (GB)
Title: Improvements in or relating to electrical transformers for television and similar fields
IPC: H01F38/42
Filed: 1959-08-11
Abstract: 907,200. Transformers. SOC. DES ATELIERS RENE HALFTERMEYER ARENA. Aug. 11, 1959 [Aug. 11, 1958], No. 27429/59. Class 38 (2). A line scanning transformer for a television receiver is provided with means for varying the stray inductance to produce resonance with the stray capacitance at a frequency slightly lower than that of an odd harmonic of the line retrace frequency. Figs. 1 and 3 show a short-circuited loop 4 which can be used to vary the leakage flux by screwing its moulded carrying element 5 towards or away from the windings along a fixed threaded ring 5a on ferrite core 1. The short-circuited loop may be of roughly square shape if the windings and core are of square cross-section. Fig. 4 shows another embodiment in which the leakage flux is varied by movement of ferrite rods 8, 9 into and out of a crescent shaped space between the primary and secondary windings. The ferrite rods pass through holes in moulded member 13 which may be provided with ribs gripping the rods or with screw threads.
Patent GB-1097524-A (GB)
Title: Improvements in and relating to thermal testing apparatus
IPC: G01N25/18
Filed: 1965-06-29
Abstract: 1,097,524. Semi-conductor devices. ARVIN INDUSTRIES Inc. June 29, 1965 [Oct. 9, 1964], No. 27467/65. Heading H1K. [Also in Division G1] A crystal of BaTiO 3  or triglycine sulphate when polarized (i.e. charged) produces an output signal proportional to the rate of change of temperature due apparently to the change in capacitance by change in permittivity.
Patent GB-426351-A (GB)
Title: Process for the production of a flexible transparent liquid- and moisture-proof material
IPC: C08J7/04
Filed: 1933-10-05
Abstract: In a lacquer for treating wrapping or other foils of paper, regenerated cellulose, &c. to render them waterproof, having a basis of nitro-cellulose or a cellulose ester or ether and containing wax or grease, benzyl abietate is used as a plasticizer to maintain the wax or grease in solution after drying and prevent opacity.  The wax or grease may be petroleum jelly, liquid medicinal paraffin, or apple wax.  Other plasticizers may also be added.  The lacquer may contain metal or other powders such as p  gold substitutes, bronze or aluminium powder, stannic sulphide, zinc white, chrome yellow, &c. and foils coated with these lacquers may be subsequently coated with a colourless lacquer and may be cr<\>zeped, embossed, &c.
Patent GB-1026282-A (GB)
Title: Improvements in and relating to gas mixture fractionating systems
IPC: F25J3/04
Filed: 1963-07-11
Abstract: 1,026,282. Cold separation of gas mixtures. WERKSPOOR N.V. July 11, 1963 [July 11, 1962], No. 27527/63. Heading F4P. In a process for separating a gas mixture, e.g. air, into at least two components, e.g. oxygen and nitrogen, by rectification in a column 1, Fig. 1 (not shown), supplied with cold by at least one cold gas refrigerator 2, 3 of reversed hot gas engine type and wherein the separated components are withdrawn from the column in the gaseous phase and a portion of each is passed through a heat exchanger 5 having an incoming feed air passage 6 means is provided whereby at least one of the separated components is withdrawn in both the gaseous and liquid phase. A portion of the feed air is passed through an optional conventional refrigerator 27, a coil 20 immersed in a chamber 11 containing liquid nitrogen resulting from condensation in the cold gas refrigerator 13 of that portion of nitrogen gas leaving the head of column 1 and not traversing the exchanger 5. Product liquid nitrogen is withdrawn through a duct 14, product gaseous nitrogen through a duct 9 and product gaseous oxygen through a duet 17. Oxygen in the liquid phase is obtained by withdrawing a portion of the oxygen gas from a point 33, Fig. 5 (not shown), on the upstream end of exchanger 5 and condensing it in a chamber 36 cooled by liquid nitrogen in adjacent chamber 11 and from which product liquid oxygen is withdrawn through a duct 38. A portion of condensed nitrogen may be withdrawn from chamber 11, Fig. 6 (not shown), through a duct 31 leading to the head of column 1 and the cold gas refrigerator 2 is dispensed with. In a modification, the exchanger 5 and chamber 11 are duplicated; switching valves being provided. In all constructions division of incoming feed air is effected by a valve 18 controlled by a temperature-sensitive element 26 within the exchanger 5. Flow of effluent nitrogen and oxygen issuing from the column is maintained constant by devices 23, 24.
Patent GB-335720-A (GB)
Title: Improvements in and relating to anti-dazzle screens for the use of vehicle drivers
IPC: B60J3/02
Filed: 1929-09-10
Abstract: 335,720. Wallace, W. R. Sept. 10, 1929. Anti-dazzle screens for motor &c. vehicles of the kind in which each screen is framed along one horizontal and one vertical edge only, are supported by a friction fitting vertically adjustable on a bar adapted to swing about a horizontal axis to raise the screen to an inoperative position. A clip a with one of its edges attached to the screen c, embraces a bar b of channel-section acting as a guide and support for the screen, and a bow-shaped or other spring d, having projecting ends d<1> for releasing the pressure between the bar and the clip is arranged between the other edge of the clip, and the back of the bar b. The upper end of the bar b is secured to a spring- controlled pin rotatably mounted in a socket f, the head e<1> of the pin having projections e<2> engaging corresponding recesses f<1> in the socket to maintain the screen in its inoperative position.
Patent GB-749658-A (GB)
Title: Improvements relating to vertically-movable windows
Inventor: OLDHAM FRED ALEXANDER MAUGHAM
IPC: E05F11/42
Filed: 1953-10-08
Abstract: 749,658. Sashes balanced by springs. HALLAM, SLEIGH & CHESTON, Ltd. Jan. 4, 1955 [Oct,. 8, 1953], No. 27628/53. Class 20(3). A vertically-movable window 2, Fig. 1, which may be opened against the action of a spring and carries toothed pinions 5 which move over fixed racks 6 at the two sides of the window, the pinions 5 being mounted on a transverse rotatable rod 4, has a pivoted catch 14 which engages a part on the rod 4 to retain the window in one or other of a plurality of adjusted positions. As shewn applied to a vehicle half-drop window 2 the top rail 3 houses the hexagonal rod 4 which, with pinions 5, rotates in bushes 18, Fig. 5. Two springs 8 each have one end secured to a sleeve 17 fixed to the rail 3 and the other end anchored to a central locking sleeve fixed to rod 4. The central portion of rail 3 is cut away and closed by a cover 11 which partly surrounds sleeve 9, Fig. 4, and carries a finger grip 12. A two. armed catch 14 comprising an operating arm 14a and a projecting pin 15, is pivoted at 13 to cover 11, the latter being slotted to allow pin 15 to enter one or other of three spaced notches 10 in sleeve 9. On pressing arm 14a towards grip 12 against the action of an interposed spring 16, the pin 15 is released from a notch 10 and the window 2 may be moved, the coil springs 8 acting to balance the window. The racks 6 are carried by a fixed frame 7 and the pinions 5 may be concealed by covers at the ends of the top rail 3.
Patent GB-1352109-A (GB)
Title: Pumps
IPC: F04B53/14
Filed: 1972-06-13
Abstract: 1352109 Reciprocating pumps F C GREER 13 June 1972 [18 June 1971] 27637/72 Heading F1A A liquid piston pump, e.g. for pumping sandcontaminated high-viscosity oil from a well, or mud or acid, comprises a tube 37 containing a bucket piston reciprocated by a sucker rod string 21, the space above the piston being connected through passage 29 to a conduit 55 connected to a check-valve controlled inlet 63, a pumping liquid, e.g. kerosene, in tube 37 and conduit 55 forming an interface with the well liquid in conduit 55, and reciprocation of the bucket piston causing reciprocation of the interface to pump well liquid from inlet 63 to an outlet tubing 17 via a check-valve 67. Make-up pumping liquid is supplied to tube 37 below the bucket piston via the interior of the sucker rod string, Figs. 3a and 3b (not shown), or through tubing 15. Gas from the well liquid collects in conduit 55 and, when sufficiently pressurized, passes through a check-valve and filter assembly 71 into a chamber 77 from which it is discharged into the well liquid below outlet valve 67 via pipe 81, another filter and a spring-loaded check-valve (83), Fig. 3b (not shown). Some of the make-up liquid in tubing 15 may be injected into the well, via a check-valve and nozzle (103), Fig. 8 (not shown), to dilute the well liquid. The check-valves may be ball-type or poppet-type. The bucket pump may be double-acting. Tubing 17 may be omitted and the well tubing 13 used for the discharged well liquid.
Patent GB-712199-A (GB)
Title: Improvements relating to the static collecting zones of two-stage electro-static precipitators
IPC: B03C3/66
Filed: 1951-11-26
Abstract: 712,199. Electrostatic filters. HEINRICH, D. O. Nov. 26, 1951, No. 27645/51. Class 39(1) Shields are provided between the collecting electrodes of a two-stage electrostatic precipitator. It is stated that a higher field strength can be maintained between the electrodes than without shields, the shields suppressing electron avalanches, and thus delaying the onset of sparkovers. The shields may be of non-, semi-, or conducting material. Preferably conducting shields are used, the shields lying in equipotential surfaces of the field. Resistors connect the shields to the electrodes so as to drain off collected charges, and to maintain the shields at their appropriate potentials. Several shields may be inserted between each pair of electrodes.
Patent GB-842081-A (GB)
Title: Improvements relating to colour television apparatus
Inventor: TAIT DAVID RUSSELL
IPC: H04N9/09
Filed: 1955-09-29
Abstract: 842,081. Television. ELECTRIC & MUSICAL INDUSTRIES Ltd. Sept. 13, 1956 [Sept. 29, 1955], No. 27687/55. Class 40(3). In a colour television system employing two picture signal generating tubes responsive to different colour or colour mixture components of a scene chromaticity errors due to inaccurate colour balance between the outputs of the tubes resulting from random variations in sensitivity across the pick-up surfaces in the individual tubes are reduced by deriving a correcting signal from the difference between the output signals of the tubes representative of the same scene and employing such correcting signal to modify the output signals of one of the tubes. Fig. 1 shows one embodiment employing a first tube 1 producing a high definition luminescence signal Y and a second tube 2 producing a low definition luminescence signal Y<SP>1</SP> and two colour signals B and R representative, respectively, of the blue and red components of the scene. In accordance with the invention a signal equal to the difference between the signal Y<SP>1</SP> and the (equivalent) lowfrequency components of the signal Y (derived from tube 1 via a variable gain amplifier 3 and a low-pass filter 8) is produced in a difference amplifier 7 and employed to control the gain of amplifier 3 so as to maintain a fixed ratio between the two signals Y and Y<SP>1</SP>. Since the signals Y<SP>1</SP> ,  B and R are already in correct colour balance (being derived from the same tube) the signal Y is also in correct colour balance with the B and R signals. In an alternative arrangement (Fig. 2 prov.), the tube 1 supplies the Y and B signals and tube 2 the Y<SP>1</SP> and R signals and the correction is effected by employing the difference signal (derived as before in a difference amplifier 7 from the Y signal and the low-frequency components of the Y signal) to control the gain of a variable gain amplifier 10 fed from the output of tube 2. Fig. 3 shows a further arrangement . in which the low-frequency components of signal Y (derived in low-pass filter 8) are employed to multiply (in device 12) the signal quantities B/Y<SP>1</SP> and R/Y<SP>1</SP> (derived in a dividing circuit 11) to effect the required correction. The invention is stated to be applicable to arrangements employed for correcting colour television standards (e.g. the chromocoder). Specification 787,331 is referred to.
Patent GB-1126703-A (GB)
Title: Improvements in or relating to safety valves
IPC: F16K17/04
Filed: 1966-06-21
Abstract: 1,126,703. Valves. DRESSER INDUSTRIES Inc. 21 June, 1966 [22 June, 1965], No. 27761/66. Heading F2V. A spring loaded pop-up saftey valve having the usual upper and lower adjusting rings 40, 41 to control the popping, is provided with means whereby the blowdown can be adjusted and set at a low or negligible value. A sleeve 22 on the valve stem and slidable in a guide 24 provides behind it a chamber 42 which communicates with the valve chamber through orifices 44. As the valve opens, an adjustable tapered vent valve 43 on the stem moves out of a floating ring 47 and vents the chamber, the pressure then being sufficiently small to avoid premature closure. The chamber is also permanently open to atmosphere through an orifice 53 so that on re-closing, pressure build-up which would cause a too rapid closure, is avoided. Valve 43 is adjustable and is locked by a pin 45 and slots 44. In a modification, tho valve 43 is replaced by two relatively adjustable screwed members (73, 76), Fig. 4 (not shown). Orifice 53 may be replaced by an adjustable needle (58), Fig. 3 (not shown), which cannot be closed completely, or by a slot in the vent valve.
Patent GB-1495600-A (GB)
Title: Process for conditioning hot dustladen exhaust gases
IPC: B01D51/00
Filed: 1975-07-01
Abstract: 1495600 Electrostatic precipitators METALLGESELLSCAFT AG 1 July 1975 [15 July 1974] 27773/75 Heading B2J  A process for conditioning hot dust-laden exhaust gases, wherein the gases are passed through an evaporative cooler in the form of a substantially vertical tower- 3 in which the gases are cooled by injecting into the gases water in a state of fine sub-division as the result of which some of the dust settles out in the lower portion 8 of the cooler 3 which has discharge means 12, whereafter the gases are then passed through an electrostatic precipitator 6, and wherein dry dust is added at some point in the process to reduce the residual moisture content of the dust discharged by the discharge means 12 so that it is sufficiently flowable not to clog the discharge means 12. The dry dust may be added before, within, or at the outlet of the cooler 3, and may be obtained from the electrostatic precipitor 6, e.g. as shown in the Figure where dry dust is deflected at 13 from a conveyor 10 into a distributor 14 in the cooler 3. Examples are given, including quantities, temperatures and percentage dust and moisture figures.
Patent GB-1370628-A (GB)
Title: Pivotal connection
IPC: F16C11/04
Filed: 1971-06-14
Abstract: 1370628 Folding underframes BANNER CHURCH ORGANISATION Ltd 10 April 1972 [14 June 1971] 27841/71 Heading A4H [Also in Division E2] A foldable frame for supporting, e.g. a refuse sack, stool, baby carriage, shopping trolley trestle table, comprises two rectangular frames, one frame having a U- or like bend 9 in each side member 5 and the other frame having an S- or like bend 10 in each side member 6, the two frames being pivotally connected together by interengaging the U- and S-bends with the legs of the U extending through the loops of the S.
Patent GB-677313-A (GB)
Title: Improved power shovel or other load handling implement attachment for automotive vehicles
IPC: E02F3/36
Filed: 1950-11-14
Abstract: 677,313. Scoop-arm loading-machines. GRIFFIN, T. N. Nov. 14, 1950. [Nov.- 25, 1949] No. 27848/50. Class 78 (iii). [Also in Group XXI] The boom 14 of a scoop-arm loadhandling machine is pivotally supported by links 9, 20, pivoted to fixed uprights 13 secured to the tractor frame, and is moved from the position shown in full line to that shown dotted by a pair of hydraulic thrust units 24. Tht scoop 19 is pivotally attached to the boom at 18 and has abutments 28 which limit rearward tilting, and latch arms 29 which normally engage a shaft 34 and maintain the scoop in the digging position. Rotation of shaft 34 by means of a handle 41, rod 40 and bell-crank 37 disengages these latches and allows the scoop to empty. In the digging position an abutment 44 on the boom engages a bolster 42, secured to the tractor frame, and steadies said boom. The scoop may be replaced by a hay rake, a bulldozer blade, or a load lifting hook pivoted to the centre of a bar which extends between pivots 18.
Patent GB-989226-A (GB)
Title: Method for the manufacture of velvet-like pile products
Inventor: ZSCHUNKE HEINZ
IPC: D04H13/00
Filed: 1961-08-01
Abstract: 989,226. Pile fabrics. FORSCHUNGSINSTITUT FUR TEXTILTECHNOLOGIE. Aug. 1, 1961, No. 27919/61. Heading D1K. A velvet-like fabric is produced by forming a layer of yarns or rovings 2 on a ground material 1 transverse to the longitudinal direction thereof, securing this layer by sewing, gluing or bonding alongparallel longitudinal seams 4, and then cutting the layer between the seams by a knife 5. A tufted pile 6 is thus formed which can be further worked by finishing methods such as brushing. The ground material may be woven or knitted or of other flat surfaced textile material and the pile yarn may be of low-twist or untwisted, and held together by an adhesive which is afterwards washed out. Sewn seams may be carried out on a multi-needle machine. Bonding of the seams may be effected by high frequency heating of thermoplastic material between the strips or threads of layer 2 and the ground material 1.
Patent GB-1347851-A (GB)
Title: Vehicle beds
IPC: A61G3/00
Filed: 1971-06-15
Abstract: 1347851 Vehicle beds G J VAN DER BURGT J HART and J SCHRIER 15 June 1971 [16 June 1970] 27971/71 Heading B7B [Also in Division F2] The platform 9 of a vehicle bed is supported from a base 2 on lever arms 3 pivotally mounted on the base and connected to spring elements 1 and is restrained against longitudinal movement and pitching by a rod 10 connected between a base support 11 and the platform, the connection to the platform being at a point above the carrying surface of the platform. Each arm 3 carries two rollers 7 which engage tracks 8 at each side of the platform, and the spring elements 1 are adjustable. Pneumatic shock absorbers 12 may be provided. In another embodiment (Figs. 3 and 4, not shown) one of the arms 3 contacts the platform substantially under the centre of gravity whilst the other is positioned as before. The arms are respectively connected via push pull rods to separate and unequal spring elements (A), (B). In a further embodiment (Figs. 5 and 6, not shown) the platform is supported via lever arms (3a) and spring elements from a vertical wall, the rod 10 being replaced by a vertically slotted member which engages a roller on the wall at a point above the carrying surface of the platform. In this arrangement arms (6a) pivotally connected to the lever arms (3a) and carrying the rollers 7 may be pivoted about arms (3a) to allow stowing of the bed.