baber/WOPTO huggingface dataset:
Patent GB-1041228-A (GB)
Title: Machine reading of documents
Inventor: FROGGATT ROBERT JUSTIN
IPC: G06V10/12
Filed: 1962-05-25
Abstract: 1,041,228. Picture scanning arrangements. ELECTRIC & MUSICAL INDUSTRIES Ltd. May 27, 1963 [May 25, 1962], No. 20140/62. Heading H4F. [Also in Division G4] The invention relates to a machine for the optical reading of characters on a document moving relative to a charge storage target, e.g. the target of a vidicon pick-up tube. According to one aspect of the invention successive areas of the document are illuminated by an intermittent source, e.g. an arrangement of flash tubes, in such a way that corresponding light images are projected successively on to different areas of the target, means being provided for sequentially scanning the areas of the target to derive electrical signals, and the illumination means being synchronized with the scanning means in such a way that each area of the target has a light image projected on to it at a time interval before the area is scanned which is less than half the duration of the interval between scans, so that no appreciable decay occurs of the charge produced on the target by the image. Where undesirable signals are liable to occur due to photo-conductive lag in a target, provision may be made of two pick-up tubes which are illuminated by images alternately. Each target area is then scanned twice between image projection with alternate scan merely serving to restore the target to normal potential. Alternatively only a single tube may be used which is used to derive signals on alternate scans. The flash tubes may be associated with a common or separate lens systems. The optical system for projecting images on the target may comprise a moving mirror or lens system. According to another aspect of the invention the illuminated area of the document may have a width-toheight ratio different from that of a scanned area of the charge storage target and an optical system is used to cause the image projected on the target to have a width-to-height ratio more nearly corresponding to that of the scanned area. The optical system may comprise an anamorphotic lens or fibre optic arrangement. For example, an anamorphotic lens may distort an image of a single line of characters vertically so as to occupy the whole area of a target. A fibre optic arrangement may divide a line of character into short blocks which are stacked vertically on the target.
Patent GB-193811-A (GB)
Title: Improvements in portable lamps
IPC: F21V21/08
Filed: 1922-07-24
Abstract: 193,811. Greist Manufacturing Co., (Assignees of Lent, W. F.). Feb. 27, 1922, [Convention date]. Stands.-In a portable lamp of the kind in which means for clamping the lamp to furniture &c. is provided within the base, the clamping-device is carried by telescopic members influenced by two coaxial springs adapted to draw the clamping-device into the base. The lamp supporting stem 9 which is mounted in a sleeve 13 in the upper part of the base 1 extends downwardly into the hollow portion of a member 5 disposed within the base, and is surrounded by a sliding sleeve 19 working in an aperture in a bridge plate 23 secured to the member 5. The clamping- member 35 is carried on the end of a sliding rod 28 provided at its upper end with a washer 29 working in the tubular portion of the lamp stem 9. Springs 17, 15 adapted to be simultaneously or successively compressed to enable the clamping-device, to be passed under the edge of a table &c. are disposed respectively between the washer 29 and lower end of the sleeve 19 and the upper end of the sleeve 19 and bridge plate 23. The wire forming the clamping-device 35 is looped at 35<a> to enable the lamp to be supported from a nail projecting from a wall &c. This wire and also a wire 3 passing round the lower edge of the base 1 may be covered with rubber to prevent damage to the furniture &c. on which the lamp is mounted.
Patent GB-843773-A (GB)
Title: Synthesis of steroids
IPC: C07J5/00
Filed: 1956-06-29
Abstract: The invention comprises a steroid of the general formula: <FORM:0843773/IV(b)/1> wherein the 1,2 and 6,7-positions are saturated or double bonded, wherein individually R is hydrogen and R1 is hydroxy or together R and R1 are keto or ketalised keto, wherein individually R1 1 is hydrogen and R1 1 1 is hydroxy or together R1 1 and R1 1 1 are keto and wherein X is halogen, Y is hydrogen, hydroxy or acyloxy, and Z is hydrogen or a -hydroxy, a compound of the general formula:  <FORM:0843773/IV(b)/2> wherein X1 is chloro or fluoro, the corresponding 4-bromo compound, and a process for preparing a 12a -halo-11b -hydroxy steroid of the d 4-pregnene series, which comprises reacting the corresponding 12a -halo-11b -hydroxy steroid of the pregnane series, saturated in 1,2; 4,5; and 6,7 positions with bromine, and dehydrobrominating the 4-brominated intermediate formed thereby. Such compounds may be prepared by (a) converting a d 1 1-pregnane to the corresponding 12a -bromo-11b -hydroxy steroid; (b) converting the latter compound to the corresponding 11b , 12b -epoxy derivative which is converted to a 12a -fluoro, chloro derivative; (c) converting the 12a -halo-11b -hydroxy compound to a 4-bromo or 2, 4-dibromo compound and dehydrobrominating; (d) optionally oxidising the 11-hydroxy group to an 11-keto group.  Illustrative products of the invention are 12a -chloro-11b -hydroxyprogesterone, 12a -fluoro-11b -hydroxyprogesterone, 12a -chloro-11-ketoprogesterone and 12a -fluoro-11-ketoprogesterone.  Other examples are mentioned. Reference has been directed by the Comptroller to Specification 779,989.
Patent GB-188044-A (GB)
Title: Improvements in paper fastening apparatus
IPC: B31F5/02
Filed: 1921-07-28
Abstract: 188,044. Sparks, E. July 28, 1921. Blotting - appliances. - In apparatus for fastening sheets together by punching, a blotting-appliance is provided, consisting of a pad M of paper, chalk, or other material secured to the base of the apparatus by clips N.
Patent GB-314814-A (GB)
Title: Improvements in mills for grinding paints, inks, enamels and other viscous materials
IPC: B02C4/22
Filed: 1929-07-02
Abstract: 314,814. Isbecque, Todd & Co. July 2, 1928, [Convention date]. Roller-and-breast mills.-A mill for grinding paints, inks &c, comprising a roller having a rotary movement and a reciprocating axial movement and a grinding block adjustably adapted to the feed hopper, is characterized by the hopper and grinding block being supported by a frame adapted to slide in a substantially vertical direction with respect to the main frame of the machine. The roller 1 is supported by its axle 2 in bearings 47 mounted in side standards 19. The hopper 4 and grinding bar 5, Fig. 2, are bolted, through the interposition of packing strips, to a lifting frame 22 slidable in the standards 19 and raised or lowered by a cam or eccentric 25 operated by gear wheels 28, 29, the lifting frame being provided with a roller 24 to bear on the eccentric and the eccentric being provided with notches 30 to receive the roller at the limit of its travel. The lifting frame is adapted to be bolted to the standards 19 in the working position of the mill by swivel bolts 21. The lifting frame may be operated by a rack and pinion. The grinding bar 5 is guided radially toward the roller by a surface 8 on the hopper and is adjusted toward the roller by screws 9 provided with lock nuts 12, the screws being carried by a bar 10 which is dovetailed to receive a bar 14 which carries screws 15 for adjusting a roller 13 against the bar 5 to press the latter against the surface 8. The roller 1 is reciprocated by a cam surface 32 and a roller 31. The cam surface is provided on a gear wheel 33 loosely mounted on an extension 53 of the main bearing 47, a thrust bearing 55 being provided between the gear-wheel 33 and the standard 19. The gear-wheel 33 is driven by a gear-wheel 36 fixed to the shaft 2 and idle-wheels 56, 57, so that the gear ratio may be changed when desired to alter the relative motion between the grinding bar and roller. The paint &c. is removed from tha roller by a scraper 6 and the gear wheels are enclosed in a casing. Specification 274,162 is referred to.
Patent GB-280638-A (GB)
Title: Signalling device for vehicles
IPC: B60Q1/34
Filed: 1926-08-17
Abstract: 280,638. Chater, G. W., and Stones, C. W. Aug. 17, 1926. Centrifugal speed-indicators; accelerometers.- A signalling hand on a road vehicle is raised automatically or manually to indicate " slowing down " when the speed of the vehicle falls to a predetermined amount, and the hand may be moved manually to right or left to signal turning movements. The apparatus may have combined with it a lamp, a driving mirror and a horn switch. The hand 25 is carried by a base 29 which is rotatably mounted on a member 27 rigidly secured by a lug 26 to a shaft 21. The shaft is rocked to give the " slowing-down " signal by a centrifugal speed-sensitive device comprising an inclined disc 12 mounted on a vehicle-driven shaft 1. The disc 12 sets a collar 2 upon which bears a roller 18 on an arm 17 carried by a shaft 15. A toothed sector 19 on the shaft 15 meshes with a pinion 20 loosely mounted on the shaft 21, and having a pin 23. The pin is adapted to engage a pin 24 on an arm 22 secured to the shaft 21, and so sets the shaft, which is restrained by a spring 3, and carries balance weights 4. The "slowing-down" signal may be given manually by pushing in and turning a knob 42, the spindle 41 of which has a worm gear 42a meshing with a gear on the shaft 21. The turning signals to right and left are given by turning the knob 42, its spindle 41 rocking an arm 39 connected to a rod 38 which actuates a rack 37. The rack meshes with a pinion 32 carried by a hollow shaft secured to the base 29 of the indicating hand. A waving motion may be imparted to the hand 25 by operating the knob 42. A switch contact device 48 is provided so that a horn is sounded during the first part of the movement of the knob 42, whether turning or pushing. A lamp may be lighted in a similar manner. A bracket 47 carries a lamp 55 and a driving mirror 46. The casing 11 is telescopic and adjustable in length. The apparatus may be arranged so that the indicating hand will assume the " stop " position when the brakes are applied.
Patent GB-1107221-A (GB)
Title: Improvements relating to data transmitting equipment
Inventor: WOODLIFF GEOFFREY EDMUND
IPC: H04L25/49
Filed: 1964-05-15
Abstract: 1,107,221. Electric selective signalling. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 12 May, 1965 [15 May, 1964], No. 20342/64. Heading G4H. Actuation of one of a number of switches enables one or more gating arrangements which are fed by the parallel output of a binary counter, the system being such that the output of a flip-flop fed by the combined outputs of the gates comprises a series of pulses, in number representing the switch actuated. The series is passed to a receiver where the pulses are counted, the binary output of this counter being converted to an output on one of a number of leads which corresponds to the switch. The pulse series occupies one-third of the cycle time of the system and the transmitter includes means for preventing the transmission of a series representing a second key which is accidentally operated during the cycle time corresponding to the first key.
Patent GB-148494-A (GB)
Title: Hydrogen filling plants for airship stations
IPC: B64B1/62
Filed: 1920-07-10
Abstract: 148,494. Stoltz, P., and Weyhmann, C., (Assignees of Nasserstoffgas Ges., C. F.). Sept. 17, 1913. [Convention date]. Void [Published under Sect. 91 of the Act]. Gas distribution systems.-Airships are charged with hydrogen by means of high-pressure containers d connected to compressor plant b of a gas works and to the charging pipe-line e in such a manner that they can be independently shut off by means of valves. A small gasometer h is connected to the pipe-line e and to the compressor plant b, and the course of the gas is controlled by further valves g, m, f. The containers dare arranged at a distance from the airship sheds a and are placed below ground with welding seams uppermost. The pipe line e is also below ground and is of large diameter to form an expansion chamber. The valves may be controlled from a distance. or the pipes may be arranged so that the various valves are in juxtaposition, say, within the compressor chamber.
Patent GB-518259-A (GB)
Title: Improvements in or relating to fire extinguishing bombs or grenades
IPC: F42B12/20
Filed: 1939-07-13
Abstract: 518,259. Fire-extinguishing. F. E. PROPRIETARY CO., Ltd., and FINZI, G. July 13,1939, No. 20489. [Class 47 (ii)] A fire-extinguishing grenade. comprises a casing 1 of thin light non-metallic material closed by caps 2, 2', and a threaded tubular stem 4 with securing nuts at either end. A firing cartridge A is inserted at the lower end of the stem 4 and may be charged with black powder or any suitable enclosure to detonate a bursting charge B. A plurality of filaments 14 of celluloid or other inflammable material serve to ignite the cartridge. A cap 14a covers the lower end of the cartridge and a diaphragm 14b and a throat a direct escaping gas generated by an explosion up the tube 4 to displace a cork 20 and by vents 19 to detonate a bursting charge B contained in cup shaped plastic material 21, 22 such as the substance known under the Registered Trade Mark " Rhodoid." The lower end of the device is protected by a perforated casing.
Patent GB-154298-A (GB)
Title: Improvements in or relating to speedometers
IPC: G01P3/495
Filed: 1919-08-20
Abstract: 154,298. McKellen, S. D., and Woodall, H. Aug. 20, 1919. Electric and magnetic speed indicators. - Relates to speedometers of the magnetic type described in Specification 9544/05, and consists in the combination of a drag-element comprising a hollow cylinder 44, Figs. 2 and 4, with a lug 45 extending from one end and connected to a cruciform flange 46 extending across the cylinder but not otherwise connected to it. The flange 46 is of smaller radius than the cylinder and the bracket 37 projects into the cylinder 44 through the gap 47. The bracket 37 carries a jewel mounting 38, 39 for the spindle 40 fitted with a sleeve 41 to carry the pointer 42 and the armature 44. The other end of the spindle 40 is carried by the jewel bearing 35. The cylinder 44 fits rotatably into the gap 25 between the arcuate poles 22 of the magnetic element 21 and the core 24 of soft iron screwed to the rotating spindle 16 by means of the bush 23. Any suitable drive is communicated to the end 17 of the spindle 16, which is fitted with the ball-bearings 14, 15.
Patent GB-1429498-A (GB)
Title: Process for producing pressure-sensitive recording sheets
Inventor: OHOTSUBO HIRO
IPC: B32B27/00
Filed: 1973-04-30
Abstract: 1429498 Pressure-sensitive recording sheet OJI-YUKA SYNTHETIC PAPER CO Ltd 30 April 1973 [18 July 1972 (2)] 20565/73 Heading D2B A process for producing a pressure-sensitive recording sheet comprising a coloured thermoplastic resin substrate and an opaque surface layer adherent thereto of a colour different from that of the substrate and having microvoids formed in its surface such that on application of pressure it is transparentised to reveal the coloured substrate, said surface layer comprising a styrene polymer and fine particles of a rubbery polymer dispersed therein and having been at least uniaxially stretched to deform said fine particles, comprises contacting the surface layer with a swelling agent for the styrene polymer for a time and at a temperature sufficient to swell at least the surface of the surface layer in order to create microvoids therein and is characterised in that the surface layer further contains a minor amount of a resin which is different to the rubbery polymer, softer than the styrene polymer and which has a lower softening point than the styrene polymer and/or the swelling agent contains a component soluble therein but which does not dissolve the surface layer at 40C and which is chosen to satisfy the condition T o -T>3 seconds, where T o  is the time in seconds for a surface layer treated in n-heptane to reach a whiteness value of 83+2% and T is the time in seconds for the same surface layer treated in n-heptane with 2-10% by wt. of the component to reach a whiteness value of 83  2%, so as to increase the crushability of the surface layer. The swelling agent may be a C 5-8  aliphatic hydrocarbon, and may also include a solvent for the styrene polymer. The component which may be incorporated in the swelling agent may be an alcohol, ether alcohol, fatty acid, or ester. The resin which may be present in a minor amount in the surface layer may be a polyalkylene oxide, a copolymer of an olefin and polar vinyl monomer e.g. ethylenevinyl acetate copolymer, a polyisobutylene, or a petroleum resin. The sheet may be a laminate.
Patent GB-243456-A (GB)
Title: Improvements in the manufacture of sound horns and other hollow articles
IPC: G10K13/00
Filed: 1924-09-01
Abstract: 243,456. Mathys, A. W., (Inter Ocean Radio Corporation). Sept. 1, 1924. Drawings to Specification. Fiibrous tubes.-Hollow articles are made from one or more sleeves of an elastic fabric material pulled on to and stretched upon a former and impregnated with a stiffening material such as glue. The surface when dry is finished with a waterproofing material such as a solution of cellulose material having the character of an enamel or lacquer. The fabric material is first freed from natural oils. 'When more than one sleeve is employed, each is impregnated and dried before the next one is applied.
Patent GB-940474-A (GB)
Title: Method for measuring low flow rates
Inventor: FREMIOT CHARLES
IPC: G01F1/52
Filed: 1962-05-29
Abstract: 940,474. Electric selective signalling systems. COMMISSARIAT A L'ENERGIE ATOMIQUE. May 29, 1962 [June 1, 1961], No. 20628/62. Heading G4H. [Also in Division G1] In a system for measuring the rate of diffusion of a gas from a chamber 3 to an ion source 12 the time taken for a mercury column to fall through a predetermined distance is measured by counting clock-pulses. The predetermined distance is set by a coil 5 in association with two capacitors 6, 9, the arrangement being such that as the level of the mercury falls first, with a switch 10 open LC circuit 5, 6 resonates thereby establishing the upper limit of the predetermined distance, and secondly, as the level continues to fall and with switch 10 closed,the LC circuit 5,6,9 resonates thereby establishing the lower limit. Control of switch 10, and of the passage of clock-pulses to a counter can either be effected manually, resonance being indicated by an ammeter 8, or automatically, resonance being detected thermionically.
Patent GB-201406-A (GB)
Title: Improvements in or relating to collapsible containers
IPC: B65D47/26
Filed: 1922-07-28
Abstract: 201,406. Cowley, E., and London Metallic Capsule Co., Ltd. July 28, 1922. Stoppers with valves. -The nozzle a of a collapsable metal container comprises an undercut plain cylindrical inner portion, a screwthreaded part a<1>, and a closed outer end. A screw cap d is formed with an aperture d<1> to adapt it to slide on the portion a<2> of the nozzle and to cover or uncover one or more lateral delivery orifices c therein. In so doing, it removes any material adhering to the orifices. Complete removal of the cap is prevented by spinning outwards the top of the nozzle to form a bevelled flange a<3> or by spinning inwards the lower edge of the cap.
Patent GB-703402-A (GB)
Title: Improvements in or relating to mechanisms for converting reciprocating motion into rotary motion and vice versa
IPC: F16C5/00
Filed: 1950-08-21
Abstract: 703,402. Pistons. POWLEY, C. F. B. May 29, 1951 [Aug. 21, 1950], No. 20695/50. Class 122 (1) In a machine having a piston supported for rectilinear motion by rollers supported on the piston and positioned between and in engagement with spaced apart parallel guide surfaces, each roller is about an axis fixedly positioned rotative to the piston. The piston is provided with a web 54a whish is bored and slotted to support a gudgeon pin 60 and pins 64 carrying rollers which bear on the surface of the cylinder. The surfaces of; the rollers are of arcuate shape and each roller may comprise members, 67, 65, 67 mounted on ball or roller bearings or members 69 mounted on a plain bearing 70. In another form the cylinder is provided with skirt to which are secured plane guide surfaces on which roll cylindrical guide rollers.
Patent GB-727599-A (GB)
Title: Improvements in method of inking the type elements of a printing machine with quick-drying ink and an ink roll therefor
IPC: B41N7/06
Filed: 1952-08-18
Abstract: 727,599. Printing-machines. PUTNAM MANUFACTURING CO., Inc., F.'A. Aug. 18, 1952 [Jan. 9, 1952], No. 20700/52. Classes 100 (2) and 100 (4). Inking -apparatus -A natural or synthetic rubber ink roll for applying quickdrying ink to a printing element is impregnated with a volatile solvent having similar solvent characteristics to those of the solvent in the ink; drying of the ink due to its solvent being absorbed into the roll is thereby prevented, and the solvent in the impregnated ink roll may provide a supply to replace ink solvent lost from the ink by evaporation. In a marking machine having an arm 4 carrying a printing head 1 which may be swung down about a pivot 5 onto a platen 3, a carrier 7 sliding in ways 8 on the arm 4 carries a transpolychloroprene ink roll 6 movable between the printing type 2 and an ink plate 9 charged with ink whose solvent comprises phenyl or another esterified ether of ethylene glycol. Before use the roll 6 is submerged for up to 12 hours in a bath of the same or a similar solvent.
Patent GB-402369-A (GB)
Title: Improvements in or relating to driving devices operated by the weight and the muscular power of the human body
IPC: B62M1/18
Filed: 1933-07-24
Abstract: 402,369. Cycle &c. driving-mechanism. BRETTRAGER, P., 24, Budafokiut, Budapest. July 24, 1933, No. 20799. Addition to 345,592. [Class 136 (ii).] In driving-mechanism operated by movements of the body and limbs as described in the parent Specification, the mounting of the levers and their connection to the driving-shaft are modified in the following manner. The seat lever 3, which in the tricycle shown is pivoted on a shaft 2 carried by an upward extension 1 of the frame, is connected by a rod 18a and crank 19a to the driving-shaft 20, while a lever 9, which is also pivoted on the shaft 2 and carries a member 13 fitted with a foot support 11 and a hand support 14, is connected to the driving-shaft 20 by a separate connecting-rod 18b and crank 19b. The shaft 20 drives the rear wheel through chains and sprockets. The handle-bar 14 is mounted on a steering-stem rotatable in the member 13 and connected to the front wheels by any known transmission. In the case of a bicycle, the member 13 may be fixed as a steering-head to the frame, and the lever 9 connected only to the foot support 11.
Patent GB-398988-A (GB)
Title: Improvements relating to endless tracks or chains for wheels of tractors or the like
IPC: B62D55/215
Filed: 1932-07-23
Abstract: 398,988. Endless-tracks for vehicles. BIALKOWSKI, L., 40, Grojecka Strasse, Warsaw. July 23, 1932, No. 20853. [Class 79(i).] In an endlesstrack of the kind wherein the links 1 are connected together without bolts or pins by the inter-engagement of their ends, wedges or spreading members 3, 4 or 9 are introduced between adjacent links to keep the link ends always engaged even when the track is loose. The wedges are secured to the links by bolts 6 which may be extended inwardly either to secure other members to the links if desired or to engage the chain wheel (not shown). The wedges may extend flush with the surface of the links as at 3, so as to form part of the roadengaging surface, or they may project beyond the links as at 4 to form the whole of the road-engaging surface, and they may be of the full width of the track as at 9. Resilient insets 2 may be provided in the links 1. The wedges may be of elastic material such as rubber, wood, or metal in the form of resilient insertions or coiled springs.