baber/WOPTO huggingface dataset:
Patent GB-728256-A (GB)
Title: Improvements in or relating to a hydraulic press or shearing device
IPC: B30B15/24
Filed: 1953-01-23
Abstract: 728,256. Hydraulic presses. BROEKHOVEN, A. J. VAN. Jan. 23, 1953 [Jan. 25, 1952], No. 2046/53. Class 69 (2). A hydraulic press comprises a fixed member 2 and a movable member 3 having secured thereto pistons 7, 8 operating in cylinders 5, 6 connected to supply and exhaust lines 19, 20 by lines 11, 13 and '12, 14 controlled by regulating valves 35, 36 and connected to common lines 16, 17 connected to the lines 19, 20 through an operating valve 18. The regulating valves 35, 36 comprise piston valves 38 biased upwardly by springs 39 and having lands which permit the flow between the pipes 11, 12, 16 and 13, 14, 17, when the piston valves are in the upper position. In a lower position the pipes 11, 12, 13, 14 are blocked. Secured adjacent to the cylinders 5, 6 are cylinders 21, 22 having pistons 23, 24 connected by rods 25, 26 to the pistons 7, 8 respectively. The cylinders 21, 22 are crossconnected as shown and the connection from the lower end of each cylinder is connected to the space above the piston 38 of the regulating valve controlling the adjacent operating cylinder. A valve 34 interconnects the cross-connections and a reservoir 33 when the member 3 is in its upper position. Unequal movement of the pistons 7, 8 and in consequence the pistons 23, 24 creates a pressure in one or other of the cross connections which operates the appropriate piston valve 38 to block the supply and exhaust lines of the operating cylinder, the piston of which is in advance of the other. In a modification, Fig. 3, the valves 35, 36, 34 and 18 are combined in a body 45 which is immersed in the reservoir. The operating valve comprises a piston valve 49 slidable in a bore 46 and having lands forming chambers 50, 52 connected to the reservoir and a chamber 51 connected to the pressure supply. The pressureregulating valves comprise a piston valve 73 controlling the flow between port 61, line 11 and port 67, line 13 and a piston valve 74 controlling the flow between port 64, line 12 and port 70, line 14, the ports 61, 67, 64, 70 being controlled by the valve 49. The piston valves 73, 74 are biased upwardly by springs 83, 84 and are depressed by separate pistons 89, 90 in cylinders supplied from,the cross connections by lines 43, 44, these cylinders having ducts communicating with the reservoir and controlled by valves 97, 98 closed by pistons 99, 100 connected to the pressure supply. Grooves 110, 111 on further pressure in the cross connections due to certain conditions connect the lines 13 or 14 through ducts 112 or 113 to the pressure supply to raise the leading main piston. To prevent the regulating valves operating during the raising movement links 106, 107 operated by the valve stem 48 in its lower position are forced into contact with the stems of the valves 73, 74. A change-over arrangement may be fitted whereby the regulating valves are effective during the raising movement.
Patent GB-1168292-A (GB)
Title: Improvements in Optical Scanning Apparatus
IPC: G11B7/12
Filed: 1967-01-13
Abstract: 1,168,292. Sensing documents. INTERNATIONAL BUSINESS MACHINES CORP. 13 Jan., 1967 [17 Jan., 1966], No. 2056/67. Heading G4M. [Also in Divisions G1 and H4] In an arrangement for scanning an object with a spot of light, the focus of the spot is cyclically varied at a frequency high compared with the scanning frequency whereby each point on the object is illuminated by a focused spot at some point in the cycle of variation despite departures of the object from a plane. The focus may be varied by a Kerr cell between a focusing lens and the point of focus or a lens attached to an A.C. fed coil co-operating with a permanent magnet, or a flexible lens, the shape and hence the focal length of which is varied by a magnetostrictive transducer. Light reflected by or transmitted through the object is received by a photo-multiplier, the output of which is fed to an amplifier tuned to the frequency of variation of focus and a rectifier, whereby a signal is produced every time the spot encounters an area of contrast in the object. The apparatus may be used for reading information from documents such as cheques, or to scan a photograph to produce a signal which may be printed out to provide a photograph uncluttered by undesired details or to scan a biological sample containing cells which do not lie in a single plane.
Patent GB-916158-A (GB)
Title: A method of and apparatus for removing burrs from rubber-like articles
IPC: B29C37/02
Filed: 1961-01-18
Abstract: 916,158. Spray-producers. BENDIX CORPORATION. Jan. 18, 1961 [Jan. 28, 1960], No. 2105/61. Class 69 (3). [Also in Group V] A nozzle for spraying moulded rubber articles with liquid carbon dioxide in a process for removing flash (see Group V) comprises a cylinder 142 having a passage 145 closed by a partition 143 with a fish-tail slot 144, which gives a fan-shaped jet. In a modification, for use with liquid nitrogen, the nozzle has three passage 148 and is surrounded by an adjustable hood 149.
Patent GB-712064-A (GB)
Title: Improvements in or relating to loose leaf systems and sheets or pockets used therein
IPC: B42F3/00
Filed: 1952-01-25
Abstract: 712,064. Filing papers. MOORE, B. Jan. 19, 1953 [Jan. 25, 1952], No. 2140/52. Class 146(1) A sheet or pocket to be filed on posts, strips, rings, or like binding members, has secured to one edge, along at least the major portion of its length, a length of wire enclosed by sheet material which,is folded over the wire and either forms part of or is attached to the sheet or pocket; the part of the sheet material which is folded over the wire being united as by an adhesive to the adjacent face of the sheet, the loops or hoops for securing the sheet or pocket to the binding members being formed in the length of the wire and projecting through apertures in the folded over sheet material. A sheet 10, to which is secured a pocket 11 of transparent material, has a folded over top edge 12 formed with apertures 13, the fold enclosing a length of wire 14 formed with hoops 15 which project through apertures 13, and the edge 12 being secured by adhesive. The hoops 15 project a substantial distance out from the sheet 10 for filing on posts and the wire 14 is free to rotate for ease of manipulation of the sheets. In a modification for filing on thongs or metal strips, the wire is formed with shallow loops in which a part is parallel to the edge of the sheet and the wire is fixed against rotation by turned back ends secured in the fold. Specification 617,186 is referred to.
Patent GB-1486821-A (GB)
Title: Speed responsive systems
IPC: F02D31/00
Filed: 1974-01-17
Abstract: 1486821 Automatic speed control ASSOCIATED ENG Ltd 13 Jan 1975 [17 Jan 1974 4 March 1974] 02156/74 and 9699/74 Heading G3R A speed-responsive system includes a first comparator receiving voltage signals representing the actual speed of a rotating member, the rate of change of the actual speed, and a reference speed. The output of the comparator is supplied to a second comparator, together with a constant frequency periodic voltage signal so as to produce a train of pulses of width dependent on the values of the inputs to the first comparator. As shown in Fig. 3, a motor vehicle engine 1 drives a toothed disc 3, causing an inductive transducer 4 to produce pulses 5 at a frequency proportional to engine speed. The pulses are converted to a voltage signal V s  which is fed together with its time derivative to a first comparator 9, which also receives a reference signal derived either from a potentiometer 17 or from a memory circuit 14 which holds a signal supplied from the frequency to voltage converter circuit 6. The resulting error signal is amplified and fed to a second comparator 19 receiving a constant frequency ramp signal from a generator 20. The output of comparator 19 takes the form of constant frequency pulses of width dependent on the value of the error signal. These pulses are fed to an actuator D having an electromagnetic valve periodically connecting a bellows chamber with the inlet manifold of the engine 1 so as to effectively integrate the pulses and mechanically control the setting of the engine throttle. In use, the vehicle is accelerated under driver control until a desired speed is reached. A switch 13 is then opened so that the desired speed forms the reference signal for comparator 9, and automatic control by comparator 19 takes over to maintain the speed at the desired value. The actuator D is described and claimed in Specification 1486822, see Division F1.
Patent GB-1174432-A (GB)
Title: Power Converting Apparatus.
IPC: F16H43/00
Filed: 1967-01-16
Abstract: 1,174,432. Rotary pumps and motors. BENDIX CORP. Jan.16, 1967 [Jan.26, 1966], No.2215/67. Heading F1F. [Also in Division F2] The transmission gearing of a vane type hydraulic pump or motor comprises a gear 114 Figs. 3, 4 concentrically secured on an input or output shaft 112 and meshing with internal teeth 120 of a ring gear 116 which moves in an epicyclic or gyratory manner to cause, or in response to, fluid-pressure in spaces about the outer periphery of the ring gear, the number of teeth 120 differing from the number of teeth on gear 114. In Figs. 3, 4, teeth 118 on the ring gear 116 engage teeth 110 on the casing 100, the numbers of teeth 118 and 110 being different so that as the ring gear moves epicyclically it rotates about its own axis. Spring urged radial vanes 122 in the outer periphery of the ring gear engage the inner wall of the casing and each space so formed is connected by a bore 126 to a port 124 which opens alternately on to annular ports 106, 108 in the casing during motion of the ring gear 116 to connect the spaces in succession first to a pressure line 102 and then to a pressure line 104. In Fig.1, a ring gear 30 meshing an input/ output gear 20 has on its outer periphery large teeth 34 loosely engaging an equal number of teeth in an annular insert 43 secured in the casing 42, so that the ring gear may gyrate without rotation about its own axis. Between alternate fixed teeth, spring-urged radial vanes 44 slotted into the insert 43 engage the tips of corresponding alternate teeth 34 to form fluid spaces. Annular plates (36, 38, Fig.2, not shown) secured to the sides of the ring gear 30 have ports 36a-f formed in each to connect the spaces successively first to a pressure line (54) via ports 60, radial bores 58, and an annular gallery 56, and then to a pressure line (68) via ports 80, radial bores 78, and an annular gallery (70), as the ring gear 30 gyrates. In Fig. 5 (not shown) a vane type pump (150) is connected to a motor (160) of one of the above types by three lines each of which includes an elastic membrane which separates the pump fluid from the motor fluid, which may be different, so that pulsations of fluid-pressure are transmitted without mixing of the fluids. A relief valve, supply tank, and check valve connected to the circuit allow for the effects of temperature change.
Patent GB-1477993-A (GB)
Title: Pseudo-isocytidine protected pseudo-isocytidine and methods for their preparattion
IPC: A61P35/02
Filed: 1976-01-20
Abstract: 1477993 Pseudo-isocytidine RESEARCH CORP 20 Jan 1976 [7 Aug 1975]. 02216/76 Heading C2C Pseudo-isocytidine (I) and its acid addition salts are prepared by reacting a 2,3-O-C 1-7  alkylidene-5-O-trityl-D-ribofuranose with a (C 1-7  alkoxycarbonyl methylene) triphenyl phosphorane at elevated temperature to produce a C 1-7  alkyl 2-(2,3-C 1-7  alkylidene-5-O-trityl-D- ribofuranosyl)acetate (II) which is reacted with a C 1-7  alkyl formate in the presence of an alkali metal hydride to produce a C 1-7  alkyl 2-formyl- 2 - (2,3 - O - C 1-7  alkylidene - 5 - O - trityl - D- ribofuranosyl) - acetate alkali metal enolate (III) which is reacted with guanidine or an acid addition salt thereof to form a novel 5-(2,3- O - C 1-7  alkylidine - 5 - O - trityl - D - ribofuranosyl) - isocytosine (IV) which is treated with a C 1-7  alkanol/mineral acid at 15 to 25 C. Compound III may be reacted with diazo-C 1-7  alkane to form C 1-7  alkyl 2-C 1-7  alkoxy - methylidene - 2 - (2,3 - O - alkylidene - 5- O - trityl - D - ribofuranosyl) - acetate which may be used in the subsequent reaction. Compounds I may be converted to their acid addition salts. Compounds I may be used as cytostatic, anti-leukemic or anti-viral agents.
Patent GB-1447949-A (GB)
Title: Wheel chair
IPC: A61G5/10
Filed: 1975-01-20
Abstract: 1447949 Wheel chairs ORTHOKINETICS Inc 20 Jan 1975 [14 March 1974] 2326/75 Heading B7B A wheel chair has a rear wheel assembly which may be retracted upwardly so that a seat portion of the chair may be set upon an automobile seat. In a preferred embodiment a rear wheel assembly 14 is mounted via axle 62 on a frame 53 comprising arched chrome-plated steel tubes 54 pivotally connected at their front end to tubes 25 of the chair frame. A chromeplated steel telescoping assembly 68 is welded to cross-bar 32 of the seat frame and to axle 62 of the rear wheel assembly 14. Retraction of undercarriage 53 is powered by spring 7 connected between cross braces 40, 64 of the chair frame and wheel assembly respectively. To unlatch tube assembly 68, a knob 90, Fig. 3, is pulled outwardly to disengage a plunger 86 from opening 92 in inner tube 72 to free outer tube 74. Handle 84 of sleeve 74 is drawn upwardly against bias of spring 82, to cause dimple 102 to cam against detent 94 which is forced inwardly so that tube 76 can telescope into tube 74. When tube 76 reaches its upward limit of movement, opening 100 aligns with detent plunger 94 which advances under pressure of spring 96 to latch tube assembly 68 in its retracted position. In another embodiment, Fig. 5, the front wheel assembly 124 is rigidly attached to rear wheel assembly 128 by tubes 126 which are pivotally connected to the chair frame 120. Stub legs 148 welded to tubes 126 are so positioned as to rest upon the front door sill of an automobile when the wheel chair is being loaded in.
Patent GB-102410-A (GB)
Title: Improvements in or relating to Automatic Pistols and Supports therefor for use in Trench Warfare.
Inventor: ELLIS REGINALD EATON
IPC: F41A23/00
Filed: 1916-02-16
Abstract: 102,410. Ellis, R. E. (Cooke, C. J.) Feb. 16, 1916. Aiming - rests for; stocks: sighting accessories; firing - appliances applicable generally; breech actions, sliding breech - block; breech actions, sliding barrel and breech - block; small-arms combined with other articles. - Consists in providing an automatic pistol a with a spiked rod d, for supporting it above the parapet of a trench, a deep magazine b, a hyposcope h, and means such as a cord k for pulling the trigger. The pistol is so mounted on the rod that its height can be adjusted. A steadying-spike g is provided on the rod. A recess is provided in the hyposcope to receive the recoiling part of the pistol. The rod d and spike f can be used as a weapon.
Patent GB-614884-A (GB)
Title: Improvements in smokers' ash receptacles
IPC: A24F19/00
Filed: 1946-08-12
Abstract: 614,884. Smokers' ash-trays. CHESTON, A. S., EDMONDS, E. C., CHESTON, B., and ROBERTSON, R. Aug. 12, 1946. No. 23788. [Class 130] [Also in Group XXXII] An ash receptacle 1 is rotatable for emptying about a fixed pivot 7 on a plug 6 against the pressure of a spring 4, the torsion of which is adjustable by rotation of an abutment plug 9 held by a locking hole in a housing 2. The spring is located in a tubular part 5 and anchored by grooves in plugs 6, 9. A screw-driver slot 12 enables the plug 9 to be depressed before the adjustment is made, the spring subsequently returning it into a squared hole in the arrangement shown. The upper part of the housing may be closed by a flap hinged at its upper edge. In a modification the pivots and spring are arranged at the top front edge of the receptacle.
Patent GB-900458-A (GB)
Title: Improvements in feeding devices for cooling beds for rolling mills
IPC: B21B43/00
Filed: 1959-01-22
Abstract: 900,458. Rolling. MOELLER & NEUMAN G.m.b.H. Jan. 22, 1959 [Feb. 6, 1958], No. 2406/59. Class 83 (4). In a collector device for the cooling beds of rolling mills for bar or strip, particularly mechanical cooling beds, several channels with bar or strip lifters are provided and the bar or strip is lifted from one channel and fed laterally in another before a further bar or length of strip is delivered, the bar or strip thus traversing all the channels and sliding longitudinally at the same time. A length of bar 2 received from the mill into a collecting channel 1 having rollers 3, is lifted by bar-lifters 5 into a first slider channel formed by a rigid wall 7 and the side walls of bar lifters 6. The bar lifter 6 then descends to form a second channel with a truing plate 9 into which the bar or strip then moves as at 2b. The bar or strip. is then raised on to the fixed trueing plate 9 thereafter being delivered to fixed catch surfaces 10 by a movable member 10a. The bar or strip lifters 6 rise again ready to receive a further bar or length of strip from the collecting channel into the first channel. When operating on lower delivery speeds the bar or strip may pass directly to the position 2b from the collector channel 1. Two or more bars may be delivered together from multipass rolls.
Patent GB-1429621-A (GB)
Title: Display systems
IPC: G01R13/02
Filed: 1975-01-20
Abstract: 1429621 Displays; printers T A McMULLIN 20 Jan 1975 2419/75 Heading G4H [Also in Division H3] To produce relatively steady digital indication of the value of a noisy electrical signal, repeatedly digitized, a latch 13 retains the latest digital result for comparison with the content of a display register 18 which is adjusted to reduce any difference. The rate of adjustment may depend on the magnitude of the difference and/or the time interval for which the difference has existed. As shown, the difference controls the frequency of a pulse generator 16 feeding the register 18, which is an up/down counter, via an intermediate counter 17. When zero difference is reached, counter 17 is reset to a number in the middle of its counting range, thereby providing "dead space". Display 20 may be seven segment or a printer. Digital phase-meter.-In a radio range receiver, phase-locked loops 2, 4 produce signal phase and reference phase square waveforms from which bi-stable circuit 5 derives pulse width signals which gate, 8, clock pulses (derived by multiplying the frequency of the reference waveform by 360) into a counter 10. Dividers 9, 11 provide averaging over N cycles, output from divider 11 causing transfer of the content of counter 10 to the latch 13 and resetting of the counter 10 to zero. The input signal may alternatively be voltage or frequency.
Patent GB-219884-A (GB)
Title: An improvement in or relating to centrifugal friction clutches
IPC: F16D43/18
Filed: 1924-02-02
Abstract: 219,884. Broadbent & Sons, Ltd., T., and Weir, A. H. Feb. 2, 1924, By solid lubricants.- In centrifugally operated friction clutches of the type in which blocks c carried in the driving-member c move radially outwards to drive the driven drum d and in which a sleeve d<1> on the drum rotates on a boss b<1> on the member b, graphite or other non-fluid lubricant e in stick, granular, or powder form is arranged in axial grooves b<2> in the surface of the boss and is thrown centrifugally into contact with the sleeve.
Patent GB-1450477-A (GB)
Title: Automatic lubrication method
IPC: F16N29/02
Filed: 1974-01-21
Abstract: 1450477 Lubricating KEARNEY & TRECKER CORP 21 Jan 1974 [29 Jan 1973] 2743/74 Heading F2A [Also in Division G3] A multi-axis machine tool is provided with an automatic lubrication system controlled so that the lubrication supplied to each machine-way axis is independently responsive to and increases with an increase in feed rate of that axis. As shown, lubricant from a source 24 is supplied over a line 26, a valve 22 and lines 28, 30 to the X-axis machine-way 32 and drive screw 34. The feed rate of the X-axis is determined by instructions from a tape reader 10 also connected to a computer 12 which calculates from these instructions the amount of lubrication required. The resulting output signal from the computer is applied over line 14, a solenoid driver 16 and a solenoid 20 to control the valve 22, whereby the amount of lubricant supplied is a linear function of the feed rate. The Y-axis and Z-axis of the machine are similarly independently lubricated. A suitable program for the computer is described.
Patent GB-732230-A (GB)
Title: Improvements in electric arc welding systems and apparatus
IPC: B23K9/10
Filed: 1952-02-01
Abstract: 732,230. Supply systems for welding arcs. FOSTER TRANSFORMERS, Ltd., [formerly FOSTER TRANSFORMERS & SWITCHGEAR, Ltd.], and JENNINGS, R. E. Jan. 28, 1953 [Feb. 1, 1952], No. 2752/52. Class 38 (4). In order to suppress, or accentuate, a D.C. component in an A.C. arc-welding circuit caused by partial rectification at the arc W, one side of the welding circuit is connected to the welding transformer T through a resistor R and half-wave rectifier WR which are arranged in series across tappings of the transformer, as shown. The voltage tapped off may be adjustable, as also may be the value of the resistor R. The system is of particular use in conjunction with a monatomic gas shield around the arc.
Patent GB-1368160-A (GB)
Title: Low-froth watersoluble dyeing auxiliaries
IPC: D06P3/54
Filed: 1972-01-21
Abstract: 1368160 Low-frothing dyeing auxiliaries BADISCHE ANILIN & SODAFABRIK AG 21 Jan 1972 [22 Jan 1971] 2959/72 Addition to 1359017 Heading D1B [Also in Division C5] A low-froth surfactant composition for use as a dyeing auxiliary comprises (A) 10 to 70% wt. of a non-ionic surfactant other than (b) below, (B) 10-70 % wt. of an ester obtained by reacting 2 mols of a mixture of C10-C30 fatty acids containing not less than 30% wt. of oleic acid with 1 mol. of a block copolymer carrying 2 terminal OH groups of ethylene oxide and 1, 2 propylene oxide having a molecular wt. of 1500-7000, the sum of (A) and (B) being not more than 95%; and (C) 5 to 20% of water and for a water-miscible organic solvent. The fatty acids of (B) may be naturally occurring, e.g. soya bean, pea nut oil, palm oil or bovine-, pig- or mutton-tallow fatty acids, all of which contain the required amount of oleic acid. Alternatively, the fatty acid mixture may be obtained by mixing saturated fatty acids, e.g. capric, myristic, palmitic, stearic, arachidic, behenic and cerotic acids with oleic acid. Surfactants (A) are addition products of ethylene oxide, prolylene oxide, butylene oxide or mixtures thereof with saturated fatty acids, fatty alcohols, fatty amine, fatty amides, alkyl phenols and glycols. Solvents (C) are butyldiglycol, butyltriglycol, isopropanol, dipropylene glycol, butyrolactone, N-methylpyrrolidone and dimethylformamide. A natural or synthetic fibre is dyed by contacting the fibre in an aqueous dyebath or padding liquor containing a dye and a dyeing auxiliary as above at a pH of 2 to 8.