baber/WOPTO huggingface dataset:
Patent GB-1203024-A (GB)
Title: Treatment of electrostatographic surfaces
Inventor: LAWES LOUIS FREDERICK WILLIAM
IPC: G03G5/147
Filed: 1966-06-07
Abstract: 1,203,024. 024. Cleaning electro-photographic surfaces. SPERRY RAND CORP. Sept. 1, 1967 [June 7, 1966], No.25269/66. Heading G2H. A film of wax is applied to an electrostatographic surface before rinse to aviod the build-up of residual toner. The wax may be impregnated in a web of cleaning material or applied by a roller or sponge.
Patent GB-1115909-A (GB)
Title: Optical character recognition
IPC: G06V10/10
Filed: 1966-06-07
Abstract: 1,115,909. Character recognition. RECOGNITION EQUIPMENT Inc. 7 June, 1966 [7 June, 1965 (2)], No. 25271/66. Heading G4R. In a character recognition system, the character image moves across a two-dimensional array of photo-electric transducers, a fraction of said transducers sufficient to encompass said image being selected by switching means for connection to recognition means. The disclosures are as in Specification 1,115,910.
Patent GB-1420998-A (GB)
Title: Polyisocyanate-polyisocyanurate process
IPC: C07D251/34
Filed: 1973-05-29
Abstract: 1420998 Polysiocyanate - polyisocyanurate polymers MARATHON OIL CO 29 May 1973 [8 June 1972] 25405/73 Heading C3R In a process for preparing polymers containing both free isocyanate groups and isocyanurate ring groups within a single molecule, by reacting an organic dichloride with a metal cyanate and with a metal iodide or bromide, in an aprotic solvent for a preselected time, a desired average molar ratio of isocyanate groups to isocyanurate groups is obtained by adjusting the unit surface area of the metal cyanate starting material. A unit surface area which corresponds to the preselected reaction time and the ratio of isocyanate groups to isocyanurate groups may be determined from the formula where #SA = the natural logarithm of the unit surface area (square meters per gram) of metal cyanate P = the natural logarithm of the ratio of free isocyanate groups to isocyanurate ring groups T=reaction time, minutes, SA=e<SP>#SA</SP>= the unit surface area (square meters per gram) of metal cyanate. The particle size of the metal cyanate is adjusted to within 20% of the sodetermined unit surface area and the reaction carried out. In examples bis-(chloromethyl) toluene is reacted with sodium cyanate and sodium bromide in dimethylformamide in a continuous reaction in a tubular reactor,
Patent GB-1084679-A (GB)
Title: Tape cleaner
IPC: G11B23/50
Filed: 1965-06-17
Abstract: 1,084,679. Tape cleaners. SPERRY RAND CORPORATION. June 17, 1965 [June 29, 1964], No. 25687/65. Heading G5R. A tape cleaner comprises: a scraper unit having a relatively hard smooth surface 12 for engagement with the tape and at least one arcuate slot 18 or 20 having a cutting edge and a non-cutting edge arranged to contact the tape in a transverse direction; a chamber for receiving particles removed from the tape by the cutting edge; and means for providing a circulating fluid within the chamber for removing the particles from it. The surface plate 12 is arcuate and is provided with two slots, one for each direction of travel of the tape. A pipe 42 is connected to a source of vacuum to extract air from chamber 32 and air inlets 34, 36, 38, 40 are provided to give a vortex movement to air entering the chamber.
Patent GB-507995-A (GB)
Title: Improvements in and relating to resins containing rubber
IPC: C08C19/28
Filed: 1937-09-22
Abstract: 507,995. Synthetic resinous products. R.P.R. ASSOCIATION, REDFARN, C. A., and SCHIDROWITZ, P. Sept. 22, 1937, No. 25689. [Class 2 (iii)] A synthetic resinous product is obtained by treating rubber simultaneously with maleic anhydride and a phenol at elevated temperature and then further condensing the rubber-maleic anhydride-phenol product with an aldehyde. The first stage may be accelerated by the presence of oxygen or air and catalysts, e.g. sulphuric or oxalic acids may be employed ; the second stage may be carried out in acid or alkaline medium. Moulding compositions are obtained by incorporating fillers, mould lubricants, colouring substances and hardening agents with the resin by hot milling. In examples rubber, maleic anhydride and phenolic substances, in varying proportions are heated under reflux with a slow stream of oxygen or air until the rubber is completely dispersed after which formaldehyde is added and the mixture further refluxed until water separates out and then vacuum distilled to yield the resin. The resin is cold mixed with wood flour, hexamethylene tetramine, colouring material, lime and stearic acid, hot milled, disintegrated and moulded. Rubber vulcanizing ingredients may be added to the moulding composition. Specifications 368,902, [Group V], and 507,996 are referred to.
Patent GB-517907-A (GB)
Title: Improvements in weighing scales
IPC: G01G3/06
Filed: 1938-09-02
Abstract: 517,907. Weighing apparatus. TOLEDO SCALE MANUFACTURING CO. Sept. 2, 1938, No. 25729. Convention date, Nov 12, 1937. [Class 143] In a weighing scale of the predetermined weight type having a pair of load supports pivotally carried by an even-armed lever which is pivoted on a fixed axis in the frame, one of the load supports is connected, by a pair of opposed resisting elements to a pointer pivoted on. a fixed axis in the frame. The pointer 37 is mounted on a ball bearing 35 carried by a. clamp 34 adjustable on a vertical rod 32 carrying the indicating chart 38. The vertical rod is supported by a plate projecting from the frame. Attached to the pointer are two arms 40 each secured to the centre of a spiral spring 41. The outer coils of the springs are clamped between a pair of members 46 carried by an L-shaped bracket 52 mounted on an arm 53 extending from the loading box 17 of the counterpoise platter spider 16. The L-shaped bracket 52 may be adjusted towards or away from the spiral springs to vary the resistance of the springs. By adjusting the outer coils of the springs in the. clamp 46 the' extent of throw of the pointer to one side or the other of the zero may be varied. The platters 19 have downwardly depending flanges to exclude dirt. An external notched beam with an adjustable poise weight is connected to the even-armed lever 7 'by cranked brackets passing between the frame 1 and the depending flanges of the platters. The upper end of the indicator housing 61 may be provided with a carrying handle. In a modification the pointer may be arranged to oscillate transversely instead of longitudinally of the apparatus. In a further modification, the pointer is located at one end of the apparatus, the position of the platter spider and arm 53 being reversed and the frame 1 being extended to support th indicator housing. Specification 495,134 is referred to.
Patent GB-1120094-A (GB)
Title: Improvements in the manufacture of pile fabrics, carpets, rugs and the like
Inventor: MACKAY JOHN
IPC: D03D39/00
Filed: 1966-06-09
Abstract: As each pile wire 11 is being withdrawn from the fabric, a brush 16 applies volatile oil to both sides and to the top edge. The brush is then lifted by a pneumatic cylinder 21 controlled by a cam 12, and lowered to straddle the next wire.  The oil is supplied to the interior of the bristles through a pipe 18 in the form of a mist generated by air fed through a filter 43 and a valve 38 to the head 34 of an oil reservoir 33.  The valve 38 is electrically operated through a switch 40 coupled to the loom starting handle.  In another embodiment, the brush is raised and lowered by a solenoid and oil is supplied to it by a simple drip feed.
Patent GB-392407-A (GB)
Title: Improvements in apparatus for stereoscopy
IPC: G03B35/10
Filed: 1932-09-16
Abstract: 392,407. Stereoscopic photography. BATTMER, A. F., 45, Pferdemarkt, Hamburg, Germany. Sept. 16, 1932, No. 25774. Addition to 392,397. [Class 98 (i).] An apparatus for making the component images for use as anaglyphs according to the process described in the parent Specification comprises a supporting frame on which are mounted two cameras provided with means for adjusting the distance between them and for rotating them to vary the angle between the axes of the objectives. In the form shown, the cameras are carried by saddles 9, 10 slidable on the frame 1 and provided with lugs 15 engaging right and left-hand screw threads 7, 8 on a spindle 4. Circular blocks 16, 17 mounted on the saddles 9, 10 are secured to the under surfaces of the cameras and are provided with toothed wheels 20, 21 engaging worms 22, 23 carried in bearings on the saddles 9, 10 and splined to a common shaft 28. Rotation of the shaft 4 moves the saddles 9, 10 towards or away from each other and rotation of the shaft 28 alters the angle between the objective axes of the cameras. A sight 39 and level 43 may be provided in the centre of the frame 1.
Patent GB-205659-A (GB)
Title: Improvements in hoists
IPC: B66F1/00
Filed: 1922-09-23
Abstract: 205,659. Armstrong, Whitworth, & Co., Ltd., Sir W. G., and Lee, H. W. Sept. 23, 1922. Ratchet elevators.-In hoists of the kind in which the load is raised step-by-step by vertically reciprocating sets of pawls A, A<1>, a set of stop pawls C is provided which receive a load if one of the lifting pawls fails to act correctly and actuate mechanism to stop the hoist. The pawls C are mounted in blocks E which are connected by strips K and can move vertically. A projection c on each pawl engages a hole in a rod H which passes through a fixed bracket U and carries nuts V, W. A spring R is placed between the nut V and bracket U. A slot in one of the strips K is engaged by an arm L fast on a shaft X which also carries arms M, O, P. The arm M actuates a switch by which the supply of current to the motor actuating the hoist can be cut off. A spring Q acting on the arm P keeps the pawls &c. in correct position during hoisting, but by turning the arm O the strips K can be raised and the pawls put out of action. When a load is received by a pawl C it turns about the pivot D and exerts an upward pressure on the rod H through the projection c. As the rod H cannot move upwards, the pawl moves downwards, and consequently the strip K turns the arm L and the supply of current is cut off.
Patent GB-502863-A (GB)
Title: Improvements in or relating to the balancing of rotating bodies
IPC: F16F15/32
Filed: 1937-09-23
Abstract: 502,863. Testing balance of rotary bodies. FERRANTI, Ltd., and TAYLOR, M. K. Sept. 23, 1937, No. 25796. [Class 106 (ii)] Relates to a method of producing dynamic balance in a rotating body whilst in motion as described in Specification 399,845*, and consists in embedding the masses located as in the above Specification in material of specific gravity different from that of the material of the masses so that the surface of the body is rendered substantially smooth. As applied to the balancing of a flyer of a textile spinning machine, a wide groove of dovetail cross-section is formed in the drum d into which a riug of aluminium alloy is die-cast. A further groove of dove-tail cross-section, but forming a single turn spiral is either die-cast or cut in the ring a and a spiral b of lead is die-cast into the groove the lead and aluminium surfaces being flush with the drum surface. Application of a cutting tool to the spiral during rotation as in the above mentioned Specification results in the simultaneous removal of some aluminium alloy but balance is attained. The groove may be fined with a plastic instead of with aluminium -alloy. In another form lead inserts are applied to rings of aluminium alloy on the body. In further modification other forms of grooves giving a keying action are used. In a further form, a cylinder is die-cast around and keyed by tongues to the body the spiral being formed in the surface of the cylinder. In final forms discs are used and a spiral or spaced inserts formed in the face of the disc. In all forms both ends of the body are provided with these masses.
Patent GB-1095001-A (GB)
Title: Improvements relating to belt conveyors
Inventor: MORRIS IVOR ST LAWRENCE
IPC: B65G17/08
Filed: 1964-06-23
Abstract: 1,095,001. Endless conveyer belts. GEORGE LANE & SONS Ltd. June 17, 1965 [June 23, 1964], No. 25838/64. Heading B8A. An endless conveyer belt 6 is guided round curves by the provision of anti-friction pads 16 carried by the belt which coact with rollers 11 of a roller chain, the links 10 of which are rigid with a fixed guide 8. The pads 16 and roller chain may be provided on the outer side only of a curve, or may be disposed on both sides of the belt. A member 18 prevents the pads 16 from lifting out of engagement with the rollers.
Patent GB-273545-A (GB)
Title: Improved beer pump attachment
IPC: B67D1/10
Filed: 1926-10-18
Abstract: 273,545. Pollard, A. Oct. 18, 1926. Pipes.-A fitting to enable a beer pump to be connected to any one of three barrels comprises a casing with three inlets A, B, C to the barrels and one outlet H. Inside the casing works a valve F with a through duct which can be rotated to bring the duct into alignment with any one of the inlets A, B, C. The discharge end of the duct is splayed so that it remains in communication with the outlet H.
Patent GB-584299-A (GB)
Title: Improvements relating to welding electrodes
IPC: B23K35/04
Filed: 1944-12-27
Abstract: 584,299. Uniting by fusion. FUSARC, Ltd., and STRETTON, H. J. Dec. 27, 1944, No. 25919. [Class 83 (iv)] An arc welding electrode for automatic or semi-automatic machines comprises a metal core provided with a mesh-like metallic sheath consisting of at least two layers of oppositely coiled wire helices, each layer consisting of two or more helices, a coating of flux material being incorporated in the meshes. Around a mild steel or other ferrous or non-ferrous core a is wrapped a sheath consisting of two or more wires b coiled on' the core in one direction superposed by two or more coiled thereon in the opposite direction so as to prevent magnetic deflection of the arc. A flux coating c such as of powdered minerals mixed with a binding agent is applied by extrusion &c. to fill the meshes, excess coating being removed to expose the outer wire layer to conduct current to the electrode. The wires may be secured to the core or to each other by spot or seam welding. According to the Provisional Specification, each layer may consist of a single wire coil.
Patent GB-1032828-A (GB)
Title: Improved method for depositing chromium on non-metallic substrates
Inventor: LAYTON DENIS NOEL
IPC: C23C16/18
Filed: 1962-07-06
Abstract: Cr is deposited on a non-metallic substrate by first coating the substrate with a fluoro-carbon polymer to provide a smooth surface and subsequently depositing a coating of Cr by thermally decomposing a Cr compound in the absence of oxygen.  The Cr compound may be "dicumere chromium" (D.C.C.) which has the emperical formula (C9H12)2Cr.  Gaseous D.C.C. may be decomposed in an evacuated chamber or inert atmosphere at 300 DEG C.  The fluoro-carbon polymer may be polytetrafluoroethylene which after cleaning the substrate, may be applied as a dispersion by spraying, dipping or brushing and then sintering. Car door handles made as mouldings in plastics may be coated by the process.
Patent GB-210121-A (GB)
Title: Safety suspending gear for lifts and the like
IPC: B66B5/22
Filed: 1922-09-27
Abstract: 210,121. Drummond, W. J. Sept. 27. 1922. Catch gear and like safety retaining-mechanism. -When the hoisting rope D breaks, the long arm of the pivoted lever B falls and the wedge A carried by the other arm is forced between a roller and the one wall of the channelled guide in which it runs.
Patent GB-1222672-A (GB)
Title: Novel cyclopropanecarboxanilides
Inventor: SCHWARTZ HERBERT
IPC: A61K31/165
Filed: 1968-05-30
Abstract: 1,222,672. Cyclopropanecarboxanilides. H. SCHWARTZ. 30 May, 1968 [20 June, 1967], No. 26048/68. Heading C2C. [Also in Division A5] The invention comprises compounds of the Formula I wherein X represents a halogen atom other than chlorine or an amino or mono- or dialkylamino group other than dimethyl amino, wherein the total number of carbon atoms in the alkyl group is from 1 to 20, or a lower alkoxy or lower alkylthio group of 1 to 7 carbon atoms. They are prepared by reacting the corresponding aniline with cyclopropanocarboxylic acid chloride or anhydride. Compounds of Formula I in which X = F, Cl, Br, NH 2 , OCH 3  or various mono- and dialkylamino groups are specified. The compounds of Formula I have herbicidal activity.
Patent GB-1208948-A (GB)
Title: Television system for two classes of information
Inventor: MORCHAND CHARLES ANTHONY
IPC: H04N5/44
Filed: 1968-05-31
Abstract: 1,208,948. Multiplex radio signalling. C. A. MORCHAND. 31 May, 1968 [6 July, 1967; 13 Nov., 1967; 15 March, 1968], No. 26148/68. Heading H4L. Means are provided for transmitting special viewer information signals by substituting them for at least a part of selected frames of general viewer television signals. As shown, a television transmitter 10 transmits to a plurality of receivers 12, 14, 16, 19 and 25. Receiver 12 is for a special viewer who can call via line 36 for desired information from a store 24. Receiver 14 is for a special viewer receiving information from the store 24, receiver 16 is for a viewer watching the broadcast TV programme, receiver 19 provides a special viewer with a permanent copy of information from the store 24 and receiver 25 includes a persistent display device for a special viewer. The normal broadcast programme is transmitted from system 18 via combiner 20 and amplifier 22, and " start of field pulses " in the form of vertical sync. pulses or vertical blanking pulses are fed to a control circuit 28 which via line 38 selects periodically, or in response to a signal on line 36, a field of special programme material from the store 24. This selected information is fed to a buffer store 26 and when the transfer is completed, the next start-of-field pulse causes control 28 to cause combiner 20 to stop accepting signals from 18 and to accept signals from the buffer store 26. Control 28 also supplies a characteristic tone signal, different for each special programme, which is combined at 20 with the audio signal of the TV channel, but is outside the normal audio passband, and supplies a signal to buffer store 26 to start the read-out. The next startof-field pulse restores control 28 to its initial state. Receiver 14 is shown switched to receive the special signals and includes a decoder 414 which may be provided with several differently tuned circuits which may be switched so that one of several possible special programme sequences may be selected. When a characteristic tone is received the decoder sends a signal to control circuit 314 which erases any signals in a store 214 and opens the store for a fixed period to accept the forthcoming field of the special TV signal, after which the signals are supplied to the display device 114. Receiver 12 is similar to receiver 14 but has the additional facility of transmitting a call signal from device 120 via line or other link 36, the device 120 also controlling decoder 412. The control 28 may be arranged to signal back via line 36 the number of start-of-field signals which will occur before transmission of the desired signal.
Patent GB-771542-A (GB)
Title: Improvements relating to the electrical production of printing surfaces
Inventor: CROSFIELD JOHN FOTHERGILL
IPC: G03F3/08
Filed: 1954-09-09
Abstract: 771,542. Local copying by scanning. CROSFIELD, Ltd., J. F. Sept. 2, 1955 [Sept. 9, 1954; Jan. 18, 1955], Nos. 26174/54 and 1534/55. Class 40 (3). A flat or cylindrical printing surface corresponding to an original which is scanned photoelectrically is produced by a spark discharge between an electrode and a flat plate or cylinder of metal on which the printing surface is to be formed by the removal of amounts of metal to leave a series of small cavities representing the corresponding picture elements of the original to be copied. The flat original 1 is mounted on a member 2 slidable on a table 3 and between guide supports 4 and is scanned by a beam derived from a light source 5 in conjunction with lenses 8, 10 and reflected by a mirror 9 to an aperture 11 in a casing 12 enclosing a multiplier photo-cell. The mirror is rocked by a cam 14 on the shaft 15 of the recording drum 16 and a disc 17 has an arcuate slot 18 which blocks the aperture 11 during the return movement of the scanning beam. If the original 1 is opaque a reflected scanning beam is derived from a linear light source 6 backed by a hood 7. The output from the photo-cell is passed to a discharge head 20 carrying the electrode 19 and mounted on a pillar 21 fixed to the slide 2 which is traversed by a nut 26 engaging a threaded shaft 25 rotated by gears 22, 23, 24 from a motor (not shown). A tone wheel 35 has a disc with magnetized and demagnetized rim portions co-operating with a pick-up head 36 to provide a chopper frequency waveform which is shaped at 38 and fed to the photo-cell circuit of which the output is amplified and corrected in circuits 41, 42 and passed to a further stage 43 to provide an output which is amplitude and/or time modulated. The final stage 44 may include a triode amplifier or a power cathode follower, or as indicated in Fig. 7, a triode 49 with a normal negative grid bias at 50 and a capacitor 45 which is charged over resistor 47 when the valve is non-conducting and is discharged when the valve is made conductive by the positive peaks of the input to provide the discharge pulses between the electrode 19 and the cylinder 16. A second electrode 19A diametrically opposite the electrode 19 simultaneously reproduces the original on the opposite half of the drum which is preferably coated with a very thin film of insulating material containing a flux. Specification 767,505 is referred to.
Patent GB-168255-A (GB)
Title: Improvements in and relating to safety locking devices for the doors of railway carriages
IPC: E05B65/36
Filed: 1920-09-13
Abstract: 168,255. Prince, A. Sept. 13, 1920. Pneumatically-operated fastenings; fastenings operated mechanically from a distance. -The spring bolt a of a railway carriage door is operated through a Bowden wire c by a piston e in a cylinder f to which steam or compressed air may be admitted at g; or the cylinders are connected with the air or vacuum brakes in such a manner that the doors are automatically locked when the train is in motion with the brakes released. The piston e may also be pulled back by a handle m and may be held in the unlocking position by a stop fitted into a slot l in the stem h of the handle when this slot is outside the cylinder. A spring i returns the piston to the locking position. Specifications 14333/90, 2385/91, and 1827/05 are referred to.