baber/WOPTO huggingface dataset:
Patent GB-967321-A (GB)
Title: Improvements relating to the case of an upright piano
Inventor: BRASTED GERALD ARTHUR
IPC: G10C3/02
Filed: 1959-10-06
Abstract: 967,321. Pianofortes. W. G. EAVESTAFF & SONS Ltd. Oct. 27, 1960 [Oct. 6, 1959], No. 33888/59. Heading G5J. The fell 9 and the hood 3 of an upright piano are secured to the casing by parallel hinges 6 &c. so that the fell may be lifted and accommodated behind the hood in its closed position. The front edge 14 of the hood rests on the top of the fell and, to prevent damage thereto, the fell is automatically locked by the closed hood. Arms 17, pivoted at 18 on the sides 1 of the casing abut against extensions of striker plates 19 let into the end edges of the fell. Springs 23 with locking heads 26 are pressed into engagement with the arms 17 by clips 27 on the hood in its closed position.
Patent GB-1246928-A (GB)
Title: Improvements in or relating to reinforced conveyor belts
IPC: B65G15/34
Filed: 1969-07-04
Abstract: 1,246,928. Laminated belting. PNEUMATIQUES, CAOUTCHOUC MANUFACTURE ET PLASTIQUES KLEBERCOLOMBES. 4 July, 1969 [8 July, 1968], No. 33952/69. Heading B5N. [Also in Division B8] An endless conveyer of V cross-section is reinforced by a series of longitudinal wires 1 arranged in two groups spaced one on either side of the central zone of flexure of the belt, and two layers of transverse wires 2a, 2b arranged one on either side of the longitudinal wires and in closer disposition to each other in the said central zone. To facilitate the formation of the V, the underside of the belt in the said central zone may have one or more longitudinal grooves 3, 4, 5 and may additionally have elastic material (7), (Fig. 4 (not shown) in the groove or grooves 3, 4, 5 which material is under compression when the belt is flat. Alternatively, a longitudinal layer of elastic material (9), Fig. 5 (not shown) may be attached to the upper surface of the belt in the said central zone, which material is under tension when the belt is flat.
Patent GB-196328-A (GB)
Title: Improvements in gas meters
IPC: G01F3/30
Filed: 1921-12-19
Abstract: 196,328. Thompson, W. E. Dec. 19, 1921. Gas meters. - A wet gas-meter having a float - controlled valve is provided with means to raise the water level in the float chamber suddenly so as to open the valve emphatically without rapid inflow of water to the meter, together with means for closing the valve suddenly, thus making it unaffected by permissible fluctuations of the working water level of the meter. The float L, attached bv a wire 0 to the valve P, is positioned within a canister K provided in the bottom with two holes U and at the top with an air vent R, a vent S leading to the reserve water chamber A, and a third vent T sealed in the water in the float chamber J. A syphon H passes from the chamber A to the chamber J. In watering the meter, water is poured through the pipe G into a reservoir C and passes into the chamber A by an overflow pipe F until the syphon H operates when the water passes into the float chamber J and canister K thus raising the float and opening the valve. As the water in the meter evaporates and the level in the chambers A, J, which are connected by the syphon, falls due to operation of the spoon feed B, one of the vent pipes, S. T becomes unsealed and the water level in the canister falls suddenly closing the valve P. A drain pipe V is connected to the chamber J so that the withdrawal of water through this pipe to obtain gas fraudulently unseals the vent T and closes the valve. A slightly modified means for use in the duplex type of meter is also described. Specification 121,252 is referred to.
Patent GB-868137-A (GB)
Title: Improvements in or relating to a method of testing for uranium and apparatus therefor
Inventor: MASON HAROLD
IPC: G21C19/46
Filed: 1957-10-31
Abstract: <PICT:0868137/III/1> <PICT:0868137/III/2> An organic solvent is tested for uranium by washing with an aqueous solution of a colour reagent whereby uranium is brought into the aqueous phase, treating the aqueous solution with a decolorising reagent for the coloration due to uranium only and measuring the difference between colour intensity before and after said treatment.  A suitable colour reagent is ammonium thioglycollate and the decolorising reagent may be carbonate ions derived from ammonium carbonate or preferably from carbon dioxide.  If it is desired to test an aqueous liquid for uranium, it is first extracted with an organic solvent; a suitable solvent is tributyl phosphate diluted with kerosene.  A salting out agent, e.g. nitric acid, may also be employed.  If the colour reagent is alkaline and thorium is present, the latter is first removed or complexed (e.g. with a neutral aqueous solution of a sodium salt of ethylenediamine tetraacetic acid) before contacting with said reagent.  In the illustrated apparatus, designed to test aqueous solutions (see Fig. 1).  The solution to be tested is fed from a dispenser 12 to a liquid-liquid extraction column 10 where it is contacted with an organic solvent, supplied from dispenser 13.  The uranium is extracted into the organic phase and removed through line 14 to a second liquid-liquid extraction column 11 where it is contacted with an aqueous solution of the colour reagent (ammonium thioglycollate) supplied from dispenser 15.  The coloured solution is then passed from line 26 to an absorptiometer (see Fig. 3) through line 33.  The coloured solution passes first through cell 31 and through lines 35, 34 and carbon dioxide lift pump 38 to cell 36.  The carbon dioxide decolorises the thioglycollate solution thereby making a blank reading possible in cell 32.  Open tubes 39 in the absorptiometer are provided to avoid spillage within the absorptiometer in the event of line blockage.  In an alternative flow system, a part of the coloured solution only may be fed to the first cell and a part decolorised and fed to the second cell. Fig. 2 (not shown) illustrates a cam mechanism for controlling the dispensers 12, 13 and 15, which are more fully described in Specification 868,136. The extraction columns 10 and 11 are described in U.S.A. Specification 2,474,007 and a suitable unit for measuring the difference in colour intensity in the two cells of the absorptiometer is described in Specification 793,806.
Patent GB-1369753-A (GB)
Title: Grinding machine for the surface grinding of the ends of helical  springs
IPC: B24B7/16
Filed: 1972-07-20
Abstract: 1369753 Grinding OMD OFFICINA MECCANICA DOMASO SpA 20 July 1972 [31 March 1972] 34094/72 Heading B3D A machine for grinding the ends of helical springs comprises a support 13 carrying a driving motor 15 and bearing for the shaft of a grinding wheel 18 pivotally mounted in a frame 2, 3, 4 so as to be capable of first and second oscillatory movements about axes extending perpendicularly and parallel to the shaft for axial adjustment of the grinding wheel and lateral grinding movement, respectively. The frame consists of a base-plate 1, uprights 2 and horizontal upper and lower elements 3, 4. Vertical columns 5, 6 are rotatably mounted in the upper and lower elements, and arms 7a, 7b and 8a, 8b extend from the columns 5, 6, respectively. The free ends of the arms 7a, 7b carry a vertical pin or journal 9, and a similar pin or journal 10 is mounted in the free ends of the arms 8a, 8b. The centres of the journals 9, 10 have bearings 11, 12 for the support 13 for the grinding unit consisting of the grinding wheel 18 which is driven by belts 16 from the motor 15. A lever 21 extending from the column 5 is connected to an hydraulic motor 20 to effect swivelling of the columns and arms 7a, 7b, 8a, 8b, which act as a parallelogram, whereby the grinding wheel is fed axially towards and from the end of a spring to be ground, and a pair of hydraulic motors 22, 23 are connected to the support whereby it is swivelled about the bearings 11, 12 to effect oscillation of the wheel transversely to its axis. The spring may be mounted in a rotatable chuck or a pair of fixed chucks may be provided so that as one spring is chucked, another is ground. Two machines may be provided so that the ends of two springs are ground, the springs being advanced step-by-step.
Patent GB-1520414-A (GB)
Title: Coupling members
IPC: B66C1/66
Filed: 1975-08-01
Abstract: 1520414 Hook fastenings BOC INTERNATIONAL Ltd 1 Aug 1975 [2 Aug 1974] 34179/74 Heading E2A [Also in Division B8] A coupling member which is suitable for engagement by a pallet-grasping device as claimed in U.K. Specification 1495700, comprises a head 30 with a downwardly projecting rim 32, a shank 34, a cylindrical stop 36 located in the shank 34 and biased by a compression spring 38, such that it protrudes above the top face of the head 30, a pin 46 being mounted for movement transversely of the stop 36 between the position shown and a position in which it is located under the stop 36, the pin 46 being biased to this latter position by a compression spring 48 but being held in the position shown by a distance piece 54 having a U- shaped channel which receives the pin 46, the distance piece 54 being connected by a chain 60 to a shackle 58 which is pivotally mounted on the shank 34. In operation, slings to which a pallet carrying gas cylinders (not shown) is connected are attached to the outer end of the shackle 58 and the head (64) of the grasping device is lowered onto the coupling member causing the stop 36 to be pushed down fully into the shank 34 (as shown in Fig. 2 not shown), and then plungers (66) are extended from the head (64) to a position beneath the rim 32. On raising the grasping device the plungers (66) engage the rim 32 thereby raising the head (64) out of engagement with the coupling member so that the stop 36 returns to its upper position of Fig. 1. Continued raising of the grasping device causes the shackle 58 to pivot in a clockwise direction relative to the shank 34 thereby taking up the slack of the chain 60 and thus pulling the distance piece 54 out of its wedged position so that the pin 46 is biased by the spring 48 to a position beneath the stop 36 so that the latter will then be unable to be retracted back into the shank 34, and thus prevents downward movement of the head (64) relative to the coupling member so that the possibility of accidental disengagement of the grasping device is prevented. The pin 46 may be received in an aperture formed through the stop 36 instead of the position beneath the stop.
Patent GB-953684-A (GB)
Title: Improvements in or relating to remote dictation systems
IPC: H04M11/10
Filed: 1962-09-06
Abstract: 953,684. Centralized dictation systems; telephone sets. DICTAPHONE CORPORATION. Sept. 6, 1962 [Sept. 14, 1961], No. 34204/62. Headings H4J and H4K. In a centralized dictation system in which a calling switch (such as a cradle switch) is provided at each substation, and in which connection of one subscriber to the recording equipment operates privacy equipment at all the other substations for isolating them from the recording equipment, the privacy equipment is locked in the operated position if the calling switch is in the calling position. As shown, Fig. 1, when a calling subscriber lifts his handset cradle switch 46 completes the circuit from the microphone 32 to the recording system 100, which responds by energizing leads 16, 18 to light busy lamps 154 and energize privacy relays 28 at the other substations to disconnect the microphones thereat. The privacy relays lock over contacts 164 independent of the cradle switch. In a prior system another subscriber may leave his handset off and obtain priority when the present subscriber has finished. If two such subscribers do this then a double connection occurs. To avoid this the cradle switch, if operated when the privacy relay is operated, is arranged to latch the latter so that the subscriber must hang up and re-initiate the call. The latch comprises a pivoted lever, Figs. 2 . . . 5 (not shown), controlled by a spring arranged to urge the lever in one or other sense according as the cradle switch is operated or not. In the former case the lever can insert a stop-member to interfere with the return movement of the armature of the privacy relay, if the latter has been previously operated. Specification 865,014 is referred to.
Patent GB-1436843-A (GB)
Title: Preparation of n-phosphonomethyl-glycine
IPC: C07F9/38
Filed: 1972-07-21
Abstract: 1436843 Preparing N-phosphonomethyl glycine IMPERIAL CHEMICAL INDUSTRIES Ltd 27 June 1973 [21 July 1972] 34204/72 Heading C2P N-phosphonomethyl glycine (I) is obtained by reacting a derivative of the formula wherein R<SP>1</SP> is H or an esterifying group Ar is aryl and R<SP>2</SP> and R<SP>3</SP> are H or aryl with formaldehyde and phosphorous acid in a non- oxidizing acidic aqueous medium, e.g. of HCl, HBr or HI, to form a derivative of the formula and then reacting the latter with HBr or HI (preferably in the form of the concentrated acids) to remove the aralkyl substituent. If aqueous HBr or aqueous HI are used in the first step and the mixture then heated to reflux the process can be carried out in one vessel without isolation of the intermediate derivative III which is thus converted directly to the product (I). The latter may be purified by recrystallization from water when the acid is obtained in a crystalline form of m.p. 314 C. (with decomposition) as disclosed in Specification 1,436,844. The esterifying radical Ar is preferably phenyl and this group and R<SP>2</SP> and R<SP>3</SP> (if phenyl) may be substituted by alkyl, alkoxy or nitro groups and the group R<SP>1</SP> is preferably a C 1 -C 6  alkyl group. An example is given for the production and isolation of the compound and for its debenzylation by heating under reflux with aqueous HBr to form (I). The product may be converted into its salts, e.g. by reaction with an alkali metal hydroxide, ammonia or an amine, or into an ester by reaction with an alcohol in the presence of an acid catalyst, e.g. HCl. The bromo or iodo compound formed in the debenzylation step may be recycled for reaction with ammonia to form the corresponding amino compound which may then be reacted with a compound: where X is Cl, Br or I to form the starting material (II).
Patent GB-302894-A (GB)
Title: Improvements in copying machines for wood, particularly for the manufacture of winding wooden staircase walls and hand rails
IPC: B23Q1/48
Filed: 1928-11-21
Abstract: 302,894. Daney, H. Dec. 23, 1927, [Convention date]. Copying.-In a copying-machine particularly intended for making parts of curved staircases, a motor-driven tool spindle 24 is adjustably carried in a head 13 which is rotated horizontally about a column 10 whilst the same is moved vertically by means of a rank 32, whereby a guide roller 17 is kept in contact with a pattern (not shown) mounted at an incline in an adjustable holder 6. A vertically directed cutter 43 may be used by adding a cap 28 with an extra bevel wheel 31. Vertical and horizontal grooves for the risers and treads, mortices for the rails, or a grooved and moulded hand-rail, Fig. 8, may also be cut in the machine.
Patent GB-818190-A (GB)
Title: Improvements in or relating to machines for cutting and folding strips delivered by rotary printing presses
IPC: B41F13/60
Filed: 1956-11-09
Abstract: 818,190. Sheet-delivery apparatus; folding paper. ATELIERS DE CONSTRUCTIONS MECANIQUES C. & A. HOLWEG. Nov. 9, 1956 [Nov. 16, 1955], No. 34306/56. Class 100(1) A longitudinally folded and printed web is passed between rollers 1, 2 and 1<1>, 2<1> rollers 1 and 1<1> being the driving rollers and 2 and 2<1> the driven rollers. The webis then cut between two knives 3, 4 the former being stationary and the latter revolving so that its peripheral speed equals. that of the web. The leading edge of the web is grasped by rollers 11 driven at the same peripheral speed as rollers 1, 2 and 1<1>, 2<1> and the web is then drawn between a fixed guide 9 and endless belts 8 driven. at a speed in excess of the rollers 11. At the moment of cutting the leading edge of the cut sheet is gripped by rollers 13 and segments 12 revolving at the same peripheral speed as the belts 8. At this. moment, by reason of a cam 14, one roller 11 is lifted out of contact with the cut. sheet. The sheet is then passed at the increased speed of the belt 8 between an extension of the latter and belts 16. The belts 16 are mounted on frames 18 pivoted at 19 to the machine frame 20 so as to allow access to sheets in the guideway. As shown in Fig. 1 the sheets are then grasped by grippers 21 on a collecting. cylinder 15 and transversely folded by blades 23 on the cylinder 15 which co-operate with jaws 24 on cylinder 22. The sheets are then alternately delivered in horizontal alignment on to a movable receiver 27 and to a transfer cylinder 26 which passes them to a further cylinder 25 for delivery on to a second receiver 27. Retractable projections 28 are provided. which are operated after a predetermined number of sheets has been delivered so as to elevate the last sheets of a batch. As shown in Fig. 2 sheets are delivered by cylinder 22 on to a table for a further folding operation by means of rotating blades 29 and pressure rollers 30, 30<1>. The sheets are delivered to a cylinder 31 for alternate delivery to a receiver 32 and cylinder 31<1> which latter deposits the alternate sheets on to a receiver 32<1>. The cylinder 15 may be provided with perforating mechanism (Fig. 3) including an axial groove 36 adapted to co-operate with pins normally held in a retracted position in a cylinder 34. A stationary split-ring cam 38 is provided for co-operation with a roller 39 attached to a spring-urged hammer 37. When the roller and an associated projection 40 slides 'off the cam 38 the hammer 37 is released so as to cause the pins to be projected at the moment when they are in correspondence with the grooves 36.
Patent GB-155580-A (GB)
Title: Improvements in and connected with internal combustion engines
IPC: F02M21/00
Filed: 1920-12-06
Abstract: 155,580. Daimler-Motoren-Ges. Dec. 13, 1919, [Convention date]. Four-stroke-cycle engines; pumps, rotary. - In engines to which compressed air is supplied temporarily by a pump, means are provided to prevent the temporary interruption of the air supply when changing over from normal running to working with compressed charges, or vice versa. The engine is shown as applied to a road vehicle. A compressor a is driven from the crankshaft through a hand-actuated clutch c, c' and discharges through a pipe t lead. ing to a carburettor. When working normally, the compressor is out of action and the engine draws air through a port q<1> in the admission pipe t, the port q<1> being closed by a sleeve q when the engine is charged by the compressor. Passing through the steering column is a spindle l having a screwed end i which engages a nut i<1> connected by resilient or equivalent means to the sliding portion of the clutch c, c'. The nut i<1> first moves sufficiently far to enable the clutch members to engage and thus put the compressor into action; it then continues its movement and engages a spring-pressed member m connected to the sleeve q by links o, p, s to close the port q<1>.
Patent GB-192257-A (GB)
Title: Improvements in shuttles for looms
IPC: D03J5/00
Filed: 1921-12-22
Abstract: 192,257. Jowett, H., and Wilkinson, J. Dec. 22, 1921. Shuttles.-In order to prevent the weft from being caught between the shuttle and the shuttle box, the central part a<1> of the usual longitudinal groove a is formed entirely through the front wall of the shuttle in such a manner that the weft enters the grove in an horizontal direction. The upper edge 2 of the lower wall of the groove is inclined towards the centre of the shuttle. According to the Provisional Specification, the edges of the shuttle adjoining the groove may be rounded.
Patent GB-1048767-A (GB)
Title: Improvements in and relating to a heatable press plate
IPC: B29C33/02
Filed: 1963-09-02
Abstract: 1,048,767. Press plates. I. LUDWIG, [trading as WAGENER & CO. MASCHINENFABRIK]. Sept. 2, 1963 [Sept. 4, 1962], No. 34549/63. Headings B5A and B5F. A press plate for use in joining the ends of, or repairing, conveyer belts, comprises a central heated and cooled region I and two edge regions II which are permanently cooled. These prevent heat from the central working region affecting the adjacent regions of the belt. The press plate comprises: a backing plate 1, which extends over regions I and II; a pressure plate 2, which contacts the material to be worked and extends over region I only; and two side plates 9, made of a heat-insulating material, which are in alignment with plate 2 and which extend over regions II only. The plates are separated by internal members 4, frame members 7 and external members 8 and the heating and/or cooling is effected by pipes 5 and 6. The heat-insulating material for plates 9 may be hard asbestos and/or hard paperboard.
Patent GB-1438323-A (GB)
Title: Reducing the amount of undesirable pollutants in automotive exhaust gas
IPC: F01N3/00
Filed: 1973-07-20
Abstract: 1438323 Treating exhaust gases; ignition timing EXXON RESEARCH & ENG CO 20 July 1973 [5 Aug 1972] 34612/73  Heading F1B Exhaust gases from an automotive engine are treated to remove pollutants by a reactor 115, Fig.1, in the exhaust system and means to recirculate part of the exhaust gas to the engine combustion chamber and to retard the ignition in response to engine operating conditions are provided. Recirculation via valve 119 occurs only when choke valve 102 is out of operation, throttle valve 104 is between its idle and maximum power positions, or when the reactor temperature is at least equal to a predetermined value, the minimum temperature at which the reactor works effectively. Controlling recirculation are switch T (open only when the throttle is wide open) and switch S (open only with the throttle closed or in idle position). The valve A is open to transmit manifold pressure to capsule 110 when its solenoid is energized through the circuit containing switch B (with contact b, which is open only when the starter is energized), switch C (in position c when the gearbox is in neutral) and switch D (in position d when choke is in operation), which allows the pressure in the inlet downstream of throttle valve 104 to act in the capsule 110 to retard the ignition. When the valve A is closed, the ignition timing depends only on engine speed and not on manifold pressure. The switch C may alternatively be actuated in response to engine speed (moving from c to c' above idling speed) or throttle valve position (moving to c as the valve moves from its idle position).
Patent GB-325596-A (GB)
Title: Improvements in, or relating to, gap rolls for use in rolling metal
IPC: B21H1/22
Filed: 1928-11-24
Abstract: 325,596. Smith, D. Nov. 24, 1928. Hand tools.-Plantation hoes, spades, shovels, pick-ends, and other small wrought metal articles are rolled to shape between rolls having their operative portions formed as detachable dies F seating on flats C on the roll body. Each die may be spigoted near its forward end and is secured to the roll body by screws J located to the rear of the spigot. Dowels or a strip may be fitted to engage in registering recesses in the die and roll body. A series of dies may be mounted on the roll, providing a series of passes for performing subsequent rolling operat.ons on the work.
Patent GB-1515557-A (GB)
Title: Floating conveyor support construction
IPC: B65G21/00
Filed: 1975-08-20
Abstract: 1515557 Floating conveyer belt units E HEISTERHAGEN 20 Aug 1975 [5 Sept 1974] 34662/75 Heading B8A A conveyer belt is supported on a plurality of floating units each of which comprises laterally  spaced longitudinally extending floats 1 longitudinal bearers 2 disposed on the floats 1 over their entire length, and transverse bearers 3 and diagonal stiffening members (4) (Fig. 2, not shown) connecting the bearers 2. A walkway 6 may be provided. Each unit may support driving and/or transfer units as shown in Fig. 4. Alternatively the driving unit may be disposed on land. Additional floats (10) (Fig. 3, not shown) may be provided for each unit.