baber/WOPTO huggingface dataset:
Patent GB-1003646-A (GB)
Title: Improved deinking process
Inventor: LISSANT KENNETH JORDAN
IPC: D21C5/02
Filed: 1962-10-31
Abstract: A process of de-inking paper products comprises pulping imprinted paper with a caustic free aqueous solution consisting essentially of minor amounts of an oxyalkylated alcohol, oxyalkyloted phenol or oxyalkylated water and thereupon separating the paper from the aqueous solution.  The waste paper after being sorted, dusted, macerated and subdivided into small pieces is introduced into the aqueous solution which contains about 001%-2% of the organic reagent. After heating, the excess liquid is separated, and the fibre content washed, if desired.  A filter of the Oliver type which comprises a perforated drum through which the liquid is drawn leaving a mat of fibres on the outer surface may be used.  The fibres may then be bleached.  The ink may be removed from the aqueous solution by filtration, centrifugation, settling and deviating or by flotation. In the latter case the pulp may also be separated by flotation from the aqueous solution at the same time.  The de-inking may be carried out at, or above or below, room temperature.  Lists of the alcohols, phenols and alkylene oxides which may be used to form the organic reagents are given together with the preferred relative proportions.
Patent GB-1133288-A (GB)
Title: A conveying receptacle having a loading gear
IPC: B66C13/00
Filed: 1967-09-12
Abstract: 1,133,288. Cranes for loading containers. SIEMAG MASCHINEN-UND STAHLBAU NETPHEN G.m.b.H. 12 Sept., 1967 [19 Sept., 1966], No. 41476/67. Heading B8B. Containers 4 are loaded into a larger container 2 for transit through an opening 18 by an overhead travelling crane 13. The crane has an anti-pendulum device 14, 15 to which tongs 17 are attached. The tongs may be replaced by hooks, magnets or suction lifting heads. The containers are lifted from a roller conveyer 10 with stops 11. Travel of the crane along rails 12 is controlled by limit switches 21, 22 and stops 20, 23. The crane arm 16 may slew to load containers side by side. The bottom of the transit container 2 is closed by hinged flaps 8 which rest on stops 9.
Patent GB-415730-A (GB)
Abstract: 415,730. Recording - apparatus. FABRIQUES DES MONTRES ZENITH SUCCESSEUR DE FABRIQUES DES MONTRES ZENITH G. FAVRE-JACOT ET CIE, Le Locle, Switzerland. Jan. 27, 1933, No. 2678. Convention date, Aug. 9, 1932. Addition to 391,976. [Class 106 (iv).] An electromagnetically operated device for recording the periods of operation of apparatus and machines as described in the parent Specification is modified by disconnecting the armature of the electromagnet from the lever system carrying the marking element and by providing abutment pins to limit the movement of the levers under the influence of the armature. As shown the lever system comprises a bell crank e<1> resting on the armature d<2> of an electromagnet d<1> and a link e<2> connecting the bell crank to a spring controlled arm e<3> mounted on the axis of the marker arm e<3>. Movement of the system is limited by pins f<1>, f<2> co-operating with the bell crank and arm respectively. An indicator disc h2 operatively connected to the arm e<3> is moved, in the operated position of the levers, to a display position viewable through an aperture in the casing.
Patent GB-1513486-A (GB)
Title: Photopolymerisation process
IPC: C08F2/50
Filed: 1976-10-08
Abstract: 1513486 Photopolymerization of ethylenically unsaturated compounds ROHM GmbH 8 Oct 1976 [9 Oct 1975] 41986/76 Heading C3P An aqueous composition which comprises at least one water-soluble ethylenically unsaturated monomer at least 1 p.p.m. (by weight) of a water soluble anthraquinone compound which is unsubstituted in the 1, 4, 5 and 8 positions and at least 10 p.p.m. (by weight) of dissolved chloride ions is photopolymerized in the presence of oxygen. In the examples compositions containing acrylamide and methacryloyloxyethyltrimethyl ammonium chloride, acrylamide and sodium acrylate or 2-hydroxyethyl acrylate; water, the sodium salt of anthraquinone 2- sulphonic acid or 2,6-disulphonic acid or anthraquinone 2-carboxylic acid and one or more of benzoin or benzoin ethyl ether, formamide or dimethyl formamide, sodium chloride, EDTA sodium salt, and pentaerythritol glycollate.
Patent GB-1210021-A (GB)
Title: Methods of electrophotography
IPC: G03G15/056
Filed: 1968-09-05
Abstract: 1,210,021. 021. Electro-photographic processes. KATSURAGAWA DENKI K. K. Sept. 5, 1968 [Sept. 5, 1967], No.42251/68. Heading G2H. A method of electro-photography uses a photosensitive element which includes a layer of photoconductive material, a thin transparent highly insulative layer integrally bonded to one side of the photo-conductive layer and a transparent backing electrode on the opposite side of the photo-conductive layer, the method comprising a first step in which a field of one polarity is applied across the element and a second step in which a second field is applied across the element having a component opposite to that of the first field concurrently with the projection of a light image on the surface of the highly insulative layer, wherein concurrently with the application of the first field the element is irradiated with uniform light through the transparent backing electrode prior to projection of the light image. As shown, the photo-sensitive element is mounted upon a glass cylinder 25 with the highly insulative layer on the outside. Uniform light source 2 is located within the cylinder opposite a negative corona discharge electrode 1. A light image from a document 9 is projected by a lens 8 through a positive corona discharge electrode 8 on to the surface of the photo-sensitive element. An additional uniform light source 4 may be provided outside the cylinder. The photo-sensitive element may be provided with thin transparent insulative layers on both sides. The uniform light source 2 may be positioned before or after the point of application of the first field. The second field may be a pure D. C. field or a pulsating or alternating field.
Patent GB-1107646-A (GB)
Title: Improvements in or relating to the production of composite photographic images
Inventor: PELTON MARTIN OAKLEY
IPC: G03B15/12
Filed: 1965-10-05
Abstract: 1,107,646. Composite photography. RANK ORGANISATION Ltd. Sept. 28, 1966 [Oct. 5, 1965], No. 42254/65. Headings G2A and G2C. In apparatus for producing a composite image by the front projection method, the background is projected by a projector 3 and reflected by a semi-reflecting mirror 4 on to a reflex-reflecting screen 1, and thence through the mirror 4 to a camera 5, the camera and projector being positioned so that the virtual image of the exit pupil of the projection lens formed by the mirror is coincident with the entrance pupil of the objective lens of the camera. The positions of the camera and/or projector may be adjustable to effect this coincidence. If the camera can be panned separately from the projector, both the virtual image and the entrance pupil are centred on the pivot point or axis of the camera.
Patent GB-1277979-A (GB)
Title: Reflecting microscope
Inventor: KUBO MORITADA
IPC: G02B21/08
Filed: 1970-09-04
Abstract: 1277979 Microscopes TOKYO SHIBAURA ELECTRIC CO Ltd 4 Sept 1970 [11 Sept 1969] 42449/70 Heading G2J A reflecting microscope for detecting the shape or outline of an object 2 without detecting dust and scars on the surface thereof has a reflector 6 with a central semi-transparent portion 8 and an outer totally reflecting portion 7 positioned at an angle, e.g. 20-70 degrees, to the optical axis and a light source 5 positioned to one side of the optical axis. The reflector is preferably a glass plate (11) Fig.2 (not shown), on which is deposited a layer (9) of aluminium having a thinner central portion (10) which forms the semi-transparent portion 8. Preferably the portion 8 permits 70 to 95 per cent light transmission.
Patent GB-1484966-A (GB)
Title: Joint and process for forming same
IPC: B21D39/06
Filed: 1975-10-16
Abstract: 1484966 Jointing by tube expanding; jointing by forging CATERPILLAR TRACTOR CO 16 Oct 1975 [13 March 1975] 42503/75 Headings B3J and B3H A method of forming a joint between a metallic tube 14 and a machined metallic member 12 of substantially full theoretical density and having a portion for matingly receiving the tube, comprises oxidizing the machined member in a controlled manner at an elevated temperature to form a thin adherent oxide layer on the mating portion and then cooling the member before one end of the tube, which is of less hard metal than the machined member, is placed in mating contact with the mating portion and urged against it to form the joint. Preferably the member 12 is of an iron based alloy and the layer is of Fe 3 O 4 , produced by contacting the member with steam in an oxygen gas free atmosphere at a temperature between 340 and 650 C. for at least half an hour. The mating portion preferably includes channels 20 into which the tube material is forced by means of a floating roller 18 and a rotating mandrel 19, the channels preferably being formed before the oxidation is carried out.
Patent GB-1276746-A (GB)
Title: Photoelectric converter
IPC: H01L33/58
Filed: 1969-08-27
Abstract: 1276746 Photo-electric apparatus NIPPON SELFOC K K 27 Aug 1969 [30 Aug 1968(2)] 42597/69 Heading G1A [Also in Division G2] A photo-electric converter includes a converging light guide 14 having a refractive index variation in a plane perpendicular to the optic axis according to the equation n r  = n o (1-ar<SP>2</SP>) where n o  is the value at the optic axis, n r  the value at a radial distance r from the axis, and "a" is a positive constant. In a photo-detecting arrangement, the junction 17 of a reverse biased PN junction device 16 e.g. a photo-transistor, or the corresponding contact portion of a point contact device is positioned at the point at which an incident paraxial light beam is focused by the guide. If the guide has an axial length <SP>(2n+1)# /2 #2 a</SP> the element may be positioned in contact with the guide.
Patent GB-1478330-A (GB)
Title: Calcium trisulphoaluminate based compound and method of production
IPC: C08K3/18
Filed: 1974-10-02
Abstract: 1478330 Ettringite based composition LA FARGE 2 Oct 1974 [9 Nov 1973] 42759/74 Heading C4A A composition based on ettringite comprises 45-93 wt. per cent of hydrated calcium trisulpholuminate, the balance of the composition being 55 to 0% by weight tobermorites and 0 to 25% by weight hydrated silica expressed as SiO 2 . The composition may be prepared by hydration of one or more calcium silicates either alone or mixed with aluminium sulphate, the hydration being in the presence of excess water at 10 to 100 C. to form lime, which on addition of the aluminium sulphate, if not already present, reacts therewith to form tobermorites which decompose, if excess aluminium sulphate is present, to form hydrated silica. The use of the composition as a filler, for example in paints, is referred to.
Patent GB-1024587-A (GB)
Title: Improvements relating to densitometers
IPC: C07D301/32
Filed: 1964-10-20
Abstract: 1,024,587. Densitometers. ROTRON MANUFACTURING CO., Inc. Oct. 20, 1964 [Feb. 4, 1964], No.42781/64. Heading G1S. The subject matter is the same as that of Specification 1,024,585 but the claims differ.
Patent GB-1367113-A (GB)
Title: Operating mechanism assembly for slidable-gate closures
IPC: B22D41/24
Filed: 1971-09-14
Abstract: 1367113 Slide valves for metallurgical ladles USS ENGINEERS & CONSULTANTS Inc 14 Sept 1971 [23 Sept 1970] 42824/71 Heading F4B In a sliding gate nozzle for a ladle, tundish &c. in which a blank gate 24 and an orifice gate 25 are slid on turn in flanges 23 on rails 16 below a pouring nozzle 13, the operating mechanism comprises a fluid motor 34 with piston 35 attached to a ram block 36, pull links 40 attached to said ram block and pivoted to a gate latch 41 at the other end. At the end of the piston stroke a socket 43 of the latch engages a yoke 42 pivoted to the rails 16 and is thereby lifted upwardly to enable replacement of a gate. The blank gate24 is replaced by first removing the orifice gate 25, retracting the piston 35, filling the space so formed with a dummy gate (44, Fig. 6) operating the piston and replacing the blank gate.
Patent GB-1006877-A (GB)
Title: Electrophotographic materials
IPC: C07C49/683
Filed: 1961-11-30
Abstract: 1,006,877. Electro-photographic materials. GEVAERT PHOTO-PRODUCTEN N.V. Nov. 30, 1961 [Nov. 30, 1960], No. 42967/61. Heading H1K. An electrophotographic material has united with or at least held in contact with a conductive member or layer a photoconductive layer comprising at least one photoconductive compound selected from those covered by the following general formulµ wherein: R 1  and R 2  (the same or different) each represents an aryl radical or a substituted aryl radical; m, n are 0, 1 (not necessarily the same); X represents either the necessary methylene groups to close a carbocyclic ring which may be further substituted, or the necessary atoms to close a heterocyclic ring which may be further substituted; X<SP>1</SP> represents either the necessary methylene groups to close a carbocyclic ring which may be further substituted, or the necessary atoms selected from carbon atoms, nitrogen atoms, and sulphur atoms to close a heterocyclic ring which may be further substituted; and Y and Z (the same or different) each represents an electronegative group. The backing may consist of a conductive sheet or an insulating sheet with a conductive coating. Details of the backing materials are the same as those given in Specification 1,004,461. The photo-conductive layer may contain binders (and plasticizers) such as those of Specification 964,876, and may contain other (unspecified) additives for influencing the mechanical characteristics and stability of the layer. The layer may contain sensitizers such as iodoform, 1-chloro-anthraquinone, and the compounds identified in sensitizer classes A-R of Specification 964,875. The material, which may be charged by known methods, is stated to be useful for both xerography and xeroradiography. Specifications 563,173, 883,312 and 916,660 are referred to.
Patent GB-1536299-A (GB)
Title: Road vehicle having a rise-and-fall loading area
IPC: B62D53/06
Filed: 1976-10-15
Abstract: 1536299 Lowering vehicle bodies F SCHMIDT 15 Oct 1976 [17 Oct 1975] 42989/76 Heading B7D In a vehicle having a rise-and-fall loading area two torsion axles 12, 13 supporting wheels 4-7 by way of radius arms 8-11 have mounted between them jacks 17 which when actuated cause the axles to rotate in the same direction. As shown in Fig. 1 arms 18, 19 of different lengths rigidly mounted on respective axles are connected by rods 20 so that on collapse of jacks 17 the loading area is lowered and the rear axle 13 pivots through a larger degree than the forward axle 12 for the rear wheels 5, 7 to be raised higher than front wheels 4, 6, Fig. 3 (not shown). In an alternative embodiment, Fig. 6, connecting rods 20 are omitted and abutments 26 on the chassis limit the pivotal movement of forward radius arms 8, 9 so that in the "down" position the rear wheels are raised out of contact with the ground. Jacks 17 may be replaced bv spindles.
Patent GB-1524377-A (GB)
Title: Filling devices
IPC: B67C3/26
Filed: 1975-10-20
Abstract: 1524377 Bottle filling nozzles STORK AMSTERDAM BV 20 Oct 1975 [1 Nov 1974] 43033/75 Heading B8T A gas pipe 12 of a gas channel 5, 9, 12 extends below the outlet of a valve-controlled liquid passage 8 and is connected at its upper end to an intermediate member 9 housing a movable stopping member 13. In use, a needle valve 18 is opened whereby gas flows down the channel to equalize the pressure in the bottle and filling machine liquid tank when a valve body 7 slides upwardly on gas channel part 5, thereby opening a liquid inlet 8. Gas now returns to the liquid tank via the pipe 12 with the member 13 floating until the liquid level in the bottle reaches the lower end of the pipe. The member 13, which includes a magnetic block 14, then moves against a magnetic seat 20 and the increased pressure in the bottle neck stops the liquid flow. The gas pipe 12 can be changed for different desired liquid levels.
Patent GB-1160817-A (GB)
Title: Improvements in or relating to Time-Division Multiplex Data Exchange Systems
IPC: H04L12/52
Filed: 1967-09-21
Abstract: 1,160,817. Digital transmission systems. SIEMENS A.G. 21 Sept., 1967 [21 Sept., 1966], No. 43105/67. Heading H4P. An exchange has a control unit ZST including a store which is time-shared between a plurality of input and output channels. Each incoming channel is permanently allotted a section of the store, which contains all the information necessary for operation of the exchange. When there is a change of state, e.g. a bit transition, on an input channel a at time t 0  a code converter ECW forms the binary address of a during t 0 -t 1  and engages the control unit ZST. At t 1  the control unit calls up the address. The allotted section of the store, which contains the address of the called outgoing channel, is now read during t 1 -t 4 . At t 2  the called address is fed to a code converter ACW which, in time t 2 -t 3 , determines the relevant outgoing channel. At t 3  the change of state received from a is passed to the selected channel. Reception of a change of state on another channel b during the time t 0 -t 1  causes that change to be stored until the converter ECW has completed its prior operation for a, i.e. until t 1  If the converter ECW forms the binary address of b when control unit ZST is dealing with channel a, the address of b is stored until unit ZST is free and calls for the address, at t 4 . Thus the change of state on channel b is passed to the relevant output channel at time t 6  or later. Changes of state on further channels are similarly further delayed owing to the time sharing of the store.
Patent GB-1168261-A (GB)
Title: Lens Stabilisation Arrangement
IPC: G02B27/64
Filed: 1966-09-28
Abstract: 1,168,261. Gun sights. BELL & HOWELL CO. 28 Sept., 1966 [12 Oct., 1965], No. 43346/66. Heading F3C. [Also in Divisions G1 and G2] A lens 13, Fig. 9, is stabilized against vibrations, to steady the line of sight of cameras, telescopes, field glasses, missile guidance systems or other optical apparatus, by mounting it on a support 14 which is pivotally mounted by a gimbal system about orthogonal axes in the fixed housing, a rotor 70 being arranged on the support 14 with its spin axis aligned with the optical axis of the lens 13. As shown applied to a cine camera, lenses 8, 13, form a variable optical wedge in front of the camera objective, lens 8 being fixed with respect to the camera. On rotating a driving ring assembly 200 by means of a motor 126, balls 120 on spring fingers 122, frictionally engage a spherical surface 96 on the rotor 70 to spin the latter. When the camera vibrates, the spin axis of rotor 70 tends to remain fixed in space so that lens 13 moves relative to lens 8 to compensate for such vibration. On panning the camera, however, the frictional forces between balls 120 and surface 96 tend to precess the rotor axis into alignment with the camera axis. To vary the rate of such precession the driving ring assembly 200 and motor 126 are mounted on a barrel 152 which is urged by springs such as 178, 182, away from the rotor 70 but may be slid towards it by rotating a knob 190. To cage the gyro, the knob 190 is rotated so far that caging arms 208 extending inwardly from driving fingers 122 engage the end 210 of the lens support member 14. In a modification the frictional forces are varied by varying the speed of the driving motor so that, due to centrifugal force, the balls are pressed against the rotor with a greater or smaller force. In a further form the spring fingers engage the rotor directly, the balls being omitted. Alternatively, the rotor may be magnetically driven.
Patent GB-1016880-A (GB)
Title: Electro-pneumatic process controller
IPC: F15B5/00
Filed: 1964-10-23
Abstract: 1,016,880. Fluid-pressure servomotor systems. ROBERTSHAW CONTROLS CO. Oct. 23, 1964 [Dec 19, 1963], No. 43382/64. [Addition to 1, 005, 532] Heading G3P. An electro-pneumatic process controller comprises a reversible electric motor 24, Fig. 1 (not shown), rotated by duration modulated electric signal which is a measure of the variation of a parameter. Rotation of the motor rotates a gear 214 which carries a nozzle 220, connected to the chamber 74 of a relay 76, to vary the leakage from the nozzle and the relay provides on output pressure which is fed to a pneumatic motor, such as a valve actuator. The movement of the valve rod 104 provides a feedback through chain 110, and gearing to rotate a baffle plate 248 relative to the nozzle 220. Such an arrangement is similar to that described in the parent Specification. In the present case, the gearing 203 of the feedback also rotates in gear 260 to actuate an electrical transducer 266 to provide a signal to give the position of the valve. Rotation of gear 214 by the motor also rotates a tapered member 226 to vary the flow from the relay valve 76 to the motor through part BP2 and the feedback rotates the member 120 having the part BP2. This arrangement prevents or reduces overcontrol.
Patent GB-934200-A (GB)
Title: Titanium dioxide pigment and method of manufacture
IPC: C09C1/36
Filed: 1961-12-05
Abstract: The chalking tendency of titanium dioxide pigments is reduced by the presence of particulate insoluble hydrous titanic phosphate on the particles of titanium dioxide.  There may be from 0,1 to 5% of weight of hydrous titanic phosphate present; hydrous titania and hydrous alumina also may be present.  The pigment is prepared by adding a phosphatic compound, e.g. orthophosphoric acid or trisodium phosphate, to an aqueous slurry of titanium dioxide containing a dissolved titanic salt, e.g. titanic sulphate, titanyl sulphate, titanic nitrate or titanium tetrachloride, to precipitate the hydrous titanic phosphate, and then neutralizing the slurry.  Calcium, sodium and aluminium, and sulphate, chloride and nitrate ions may also be present in the coating on the particles.  Examples are given.
Patent GB-1212759-A (GB)
Title: Separation of vinyl acetate from cyclohexane by extractive distillation
Inventor: KOHNE RICHARD FRANCIS
IPC: C07C7/08
Filed: 1968-09-12
Abstract: 1,212,759. Vinyl acetate. NATIONAL DISTILLERS & CHEMICAL CORP. 12 Sept., 1968 [12 Sept., 1967], No. 43508/68. Heading C2C. [Also in Division C5] Vinyl acetate and cyclohexane are separated from each other by extractive distillation with a saturated C 8-12  hydrocarbon solvent (e.g. mineral spirits (C 12 ), nonane or isooctane), or an ethylene tetramer, or a propylene trimer or tetramer. Vinyl acetate issues from the top of the column.
Patent GB-1044587-A (GB)
Title: A method for producing a paper making machine belt and the belt produced by such method
IPC: D21F1/00
Filed: 1963-11-05
Abstract: In producing a papermaking machine belt, fabric is woven from synthetic resin yarns that contract upon increase in temperature and elongate on passing from a dry to a wet condition and is heat treated at a temperature high enough to cause substantial shrinkage thereof while the yarns are under a sufficiently low tension to remove substantially all residual shrinkage therefrom, and the belt is formed either by weaving the fabric in tubular form or by weaving it flat and thereafter joining the ends to form an endless belt.  The fabric may be treated with resin to bond the warps and wefts where they cross and such treatment may involve applying at least one resin to the yarns of the fabric, drying the fabric, curing the resin and then heat setting it, and the heat treating of the yarns to remove residual shrinkage may be performed during the resin treatment.  The tension applied during the heat treatment of the belt fabric is substantially less than that imparted to the belt in use and may be of the order not exceeding 3.2 lbs per inch width of the fabric.