baber/WOPTO huggingface dataset:
Patent GB-513407-A (GB)
Title: Improvements in and relating to piston rings
IPC: F16J9/20
Filed: 1939-05-24
Abstract: 513,407. Lapping piston rings. CROSS, R. C., and CROSS MANUFACTURING CO. (1938), Ltd. May 24, 1939, No. 15433. [Class 60] [Also in Group XXII] Apparatus for lapping piston rings comprises a holder 4 with annular grooves for receiving rings 1 so that they resiliently protrude with their outer surfaces in contact with the cylin. drical inner working surface 8 of a lapping tool 7. The holder and lapping tool are of the same size as the piston and cylinder with which the finished ring is to be used and in the process of lapping are given a relative reciprocating and rotary movement. Specification 486,388 [Group XXII], is referred to.
Patent GB-291404-A (GB)
Title: Improvements in and relating to systems of electric distribution
IPC: H02H3/08
Filed: 1928-05-29
Abstract: 291,404. British Thomson-Houston Co., Ltd., (Assignees of Hewlett, E. M.). June 1, 1927, [Convention date]. Systems for supplying consuming devices depending on static transformers; switching systems. - A consuming circuit 3 is supplied through a transformer 5 and thermionic valves 6, 7 of the kind described in Specification 216,562 from a main supply circuit 1, 2 feeding a distant and varying load. The valves 6, 7 have thoriated refractory metal cathodes, electrionic emission from which is interrupted by excessive ionization. The cathodes are heated by a constant current obtained from series transformers 15, 18, the magnetic circuits of which become saturated at a low value of current in the main circuit 1, 2. Overload in the circuit 3 causes practical interruption of current in the valves 6, 7, and to protect the circuit from high potential an underload relay is included. This constitutes contacts 23, 24 which isolate the transformer primary until closed as by manual means 25, and which open if the current in a series coil 21 is inadequate to hold them closed. The valves 6, 7 are arranged to pass an alternating current into the transformer 5, but a single valve or two valves may supply half or full-wave rectified current to the load circuit.
Patent GB-422165-A (GB)
Title: Process for the preparation of alkali nitrates from alkali chlorides
IPC: C01D9/12
Filed: 1934-05-26
Abstract: In the production of pure alkali nitrates such as sodium nitrate from alkaline-earth nitrates such as calcium nitrate, the latter is dissolved in liquid ammonia, alkali chloride is stirred in, the precipitated alkaline-earth chloride ammoniate formed is filtered off, and the residual solution evaporated to isolate the alkali nitrate.  In carrying out the process, which may be effected at normal temperature under pressure or at temperatures at or below the boiling point of ammonia, calcium nitrate containing water of crystallization or even a concentrated aqueous solution thereof may be employed, but the water content of the reaction liquid should not exceed 25 per cent.  Gaseous ammonia recovered from the process may be used in part to pretreat the alkalineearth nitrate or be oxidized and used in the production of the latter for continuing the process, or be liquefied for re-use.  Specification 329,641, [Class 1 (iii)], is referred to.
Patent GB-658153-A (GB)
Title: Improved method of separating cesium compounds from cesium-containing mixtures
IPC: C01D17/00
Filed: 1949-06-14
Abstract: Caesium bromide is separated from mixtures of alkali metal bromides by selectively dissolving it in liquid bromine, filtering off the insoluble residue and evaporating the filtrate to crystallize caesium bromide.  The original bromide mixture may be obtained from ore such as pollucite, by digesting in hydrobromic acid of 10-48 per cent concentration, optionally concentrating the solution after removing the gaugue at 130-140 DEG  C., and cooling to 60-20 DEG  C., precipitating the alkali metal bromides with the addition of isopropyl alcohol and treating the precipitate as above.  If complete removal of iron is desired the precipitate is dissolved in water, the iron precipitated by sodium hydroxide solution and the bromide solution evaporated. Pretreatment of the ore by fusion with potassium bromide followed by dissolving the alkali bromides in water; dissolving the ore in hydrochloric acid and converting the chlorides into bromides. Alternatively the ore is digested in hydrobromic acid which is saturated with hydrogen bromide at low temperature to selectively precipitate aluminium bromide, the alkali bromides remaining in solution.
Patent GB-388733-A (GB)
Title: Improvements in or relating to electrically operated musical instruments
IPC: G10H3/06
Filed: 1931-05-29
Abstract: 388,733. Electrical musical instruments. PRISNER, S., 1, Mowbray Road, London. May 29, 1931, Nos. 15769 and 27366. [Class 88 (ii).] A musical instrument comprises a glass disc 1, Fig. 3, on which a number of notes as played by a particular instrument are photographically recorded in concentric circles, the disc being rotated at constant speed in a bearing 2. A narrow radial beam of light produced by an elongated lamp 5 and a long cylindrical lens 6 passes through the disc so as to span the recordings and falls on an elongated lightsensitive device 8 connected to an electric amplifier and loud-speaker. Shutters 7 operated from a keyboard control the incidence of light on each recorded note. By the provision of two light systems, as shown, operated by separate keyboards, " solo " and " accompaniment " effects can be obtained. A number of rotating discs representing different instruments may be employed, the shutters corresponding to the same note on each being simultaneously operated by a single control, e.g. the discs may be arranged on a common axis and each set of shutters operated through cords from a common rotary shaft. Loudness may be controlled by varying the intensity of the lamps and loudness of individual notes by the use of shutters of graded transparency. Switching means may be provided in the reproducing apparatus for cutting out any particular instrument or instruments. This may alternatively be effected by the apparatus shown in Fig. 6. In this the recording extends only over three sectors of the disc, each corresponding to a different instrument, intermediate sectors being blank. Six optical systems, of which one is indicated diagrammatically at O2, are provided so that the recorded parts are always spanned by one system. Shutters S1, S3, S5 are mounted so as to rotate with the disc but are displaceable by means of cords and pulleys so as to cover any recorded sector at will. Specification 294,508, [Class 88 (ii), Music &c.], is referred to.
Patent GB-872165-A (GB)
Title: Improvements in conveyors
Inventor: CRAGGS JOSEPH
IPC: B65G39/14
Filed: 1956-05-22
Abstract: 872,165. Endless belt conveyers. GOODMAN MANUFACTURING CO. May 22, 1956, No. 15777/56. Class 78 (1). The conveying reach 16 of a belt conveyer is supported on at least one troughing roller assembly 15 which is supported by flexible cables 12, 13 extending longitudinally of the conveyer. Preferably the cables are carried on a series of supports 11 between each two adjacent ones of which there are provided two roller assemblies, each of which is spaced away from the adjacent support 11 by an equal distance. Each roller assembly consists of three rollers 37, 38 and 39, each journalled on a spindle 41, the spindles 41 being connected together by links 42 connected between the adjacent ends of the shafts on horizontal pivots 43, to allow flexing in a vertical plane. The outermost ends of the rollers 37 and 38 are connected to the cables 12 and 13 by hangers 48 secured to the cables by locking pins 52, a pair of horizontal links 44 being connected between each hanger and the associated spindle 41 by vertical pins, so that if the hangers 48 are inaccurately positioned, Fig. 2, the links 44 pivot as the belt runs over the rollers to automatically align the rollers at right-angles to the belt. Each support 11 consists of a pair of standards 17, each of which is telescopic to enable it to be adjusted for unevenness of the ground, and a transverse connecting member 19. The cables 12 and 13 are wedged in U-shaped saddles 31 on the standards so that twisting of the cables is resisted at the supports. An idler roller 32 for the lower run 16a of the belt is also carried in brackets 33 on each of the standards 17. Specifications 872,166, 872,167, 872,168 and 872,169 are referred to.
Patent GB-393088-A (GB)
Title: Improvements in or relating to evaporators for use with refrigerating systems
IPC: F25B41/06
Filed: 1932-06-04
Abstract: 393,088. Float-actuated valves. STEVENS, A. H., 5, Quality Court, Chancery Lane, London.-(Fedders Manufacturing Co., Inc. ; 57, Tonawanda Street, Buffalo, New York, U.S.A.) June 4, 1932, No. 15881. [Class 135.] In an evaporator for refrigerating systems an open float 26 is pivoted to the inner wall of the evaporator, and by its rise and fall controls the opening and closing of a valve needle 30 in the wall, a suction pipe 16 extending from the cavity of the float to a point externally of the casing. The mixture of reftigerant and lubricant flows from an inlet 17 through the needle valve. The float is designed so as to float in the refrigerant and not in the lubricant. The condensed lubricant collects in the float and is drawn off by a suction pipe 16 connected to the compressor. The needle 30 of the valve, constrained from rotating by a pin 32, is attached by a clip 34 to a boss 36 which is part of a lever 24 projecting from the float. The float may have a flange 39 to prevent refrigerant spray from entering the float.
Patent GB-1479795-A (GB)
Title: Method and apparatus for increasing contact area in a plural-phase system
IPC: C02F1/46
Filed: 1975-04-17
Abstract: 1479795 Homogenisation by electric discharge ELECTRICITY COUNCIL 6 April 1976 [17 April 1975] 15897/75 Heading B1C [Also in Division H1] The constant area between phases of a heliogeneous system including at least one liquid phase is increased by a shock wave produced by at least one transient electric spark discharge in the liquid phase or in a volume of liquid which is in acoustic communication therewith. As shown a liquid 15 continuously flows through a container 11 and a gas or less dense liquid 18 passes through to apertures 20 in a plate 4 to form bubbles 21 therein. An electric discharge takes place between electrodes 28, 29 which are immersed in a liquid (typically water) supplied through passage 31  to space 33 and separated from liquid 15 by a membrane 30. The discharge produces a plasma the expansion of which generates a shock wave which breaks up and reduces the size of the bubbles. The membrane is preferably a rubber the product of whose density and velocity of sound propagation matches that of the liquid 15, or the liquid within the membrane, or a value between the two; or is of 0.1 mm thick stainless steel. The discharges may take place in a continuous series; a suitable circuit is described with reference to Fig. 2 (not shown) and' other forms of electrodes with reference to Figs. 3-7 (not shown). The rate of flow of the liquid and/or the spacing of the electrodes may be automatically adjusted with reference to the discharge current rate. The method may also be used to disperse particulate material in a liquid.
Patent GB-819859-A (GB)
Title: Guide for use with manually held drilling tools
IPC: B25H1/00
Filed: 1958-05-19
Abstract: 819,859. Drilling-jigs. HASLER, H. G. May 19, 1958, No. 16012/58. Class 83 (3). A drilling-jig comprises a base 1, Fig. 1, an upright 2, and a member 5 parallel to the base, the member and base having aligned guideholes 6. Graduations or notches 7 facilitate the location of the jig, which may be attached to work by holes 9, 10. Holes 6 provide clearance for the largest drill to be used. For drilling holes in an inclined surface of the work, the jig may be clamped against a guide block B, Fig. 6, by a clamp C, the block B and work W being secured in a vice &c. V. Alternatively, the jig may be clamped in an inclined position relatively to work W, as in Fig. 8.
Patent GB-376444-A (GB)
Title: Improvements in settee-beds
IPC: A47C17/23
Filed: 1931-06-02
Abstract: 376,444. Bed settees. BERLISS, S., 15, Cromer Street, and DAVIS, H., 43, Priory Road, both in London. June 2, 1931. No. 16020. [Class 52 (ii).] In a bed settee, the bed frame is freely mounted upon a system of pivoted bars so that, when in the folded position, it can be raised or lowered in the chair frame. The bed frame rests on two sets of rollers, each set c, d being mounted on a bar e and supported by two equal bars a, b pivoted at f, k to the base C of the chair. The bar e is connected bv a link l to the pivoted back G of the chair and movement of the whole system is obtained by a control lever which fits on a squared end of the pivot rod at f. The bed frame, comprising sections 1, 3; 5 pivotally connected by links 2, 4, a seat H, a front board K and a foot piece 9, is guided up and down in the chair by a bracket v encircling a vertical guide tube p. When the frame is at its upper level I-I, it is held by catches and by resting against stops when in a position just over the top centre.
Patent GB-267374-A (GB)
Title: Improvements in or relating to pattern mechanism for terry and other looms
IPC: D03C3/20
Filed: 1926-06-25
Abstract: 267,374. Robb, H. C. June 25, 1926. Dobbies; pattern surfaces.-Relates to electrical means for changing from one pattern to another depending on the length of fabric woven as distinct from the number of picks and is stated to be applicable to the weaving of huckabacks or other dobby woven towels, handkerchiefs, table-cloths, scarfs, napkins, blankets, ginghams, &c. involving a change of weave at the border. An endless belt 1 of leather or other material passes around the sand roll or is geared thereto and is provided with conducting portions 5 for the completion of an electric circuit for energizing an electromagnet for effecting the desired change of pattern. The conducting portions 5 may be provided with bendable tabs designed to be pressed through the material of the belt or carrier whereby they are detachably held in the required positions.
Patent GB-555188-A (GB)
Title: Improvements in or relating to two or more axled articulated underframes for rail vehicles
IPC: B61F5/38
Filed: 1942-11-13
Abstract: 555,188. Axle-trucks. SCHEWEIZERISCHE LOKOMATIC-UND MASCHINENFABRIK. Nov 13, 1942, No. 16098. Convention date, Nov. 17, 1941. [Class 103 (vi)] Radial trucks 1, 2, with axles 3, 4 respectively and which are urged together by means of springs 18 and a tie-rod 16 and are pivotally connected by a pin 12 on truck 2 engaging in a ball 13 on truck 1, each abut on a central radially-adjustable truck 5 with axle 6 by unsprung abutment members, which are shown as vertical pins 14 on truck 5 engaging in sockets on cross-members 15 of trucks 1 and 2. All the pins 14 abut in their complementary sockets when the track is straight as shown in Fig. 2 and the wheel axles are in parallel adjustment; when the track is curved the outer set of abutments become disengaged as shown in Fig. 3 and the central truck is laterally adjusted ; re-adjustment to parallelism of the axles occurs on leaving the curve, this being produced by the action of the body which is suspended by oblique shackles. In two modifications there is no central truck ; in one form the abutment pins are carried by one radial truck and the sockets by the other ; in the other form the abutment pins are carried by a frame supporting the central pivot pin of the body and the complementary sockets by the radial trucks.
Patent GB-788190-A (GB)
Title: Improvements in clothes stands
IPC: A47G25/06
Filed: 1955-06-06
Abstract: 788,190. Clothes stands. CORBY, P. J. S. June 5, 1956 [June 6, 1955], No. 16119/55. Class 52(5) A clothes stand comprises a pair of spaced and parallel upright members 4, 5 connected towards their upper ends by a relatively wide rail 9 and intermediate their ends by a relatively narrow rail 30, a pair of spaced base members 2, 3 disposed transversely of the stand and detachably secured to the lower ends of the upright members, and a coat-hanger 26 mounted on and offset to one side of the rail 9. The hanger may be mounted by means of a bracket 20 detachably secured to the rail 9, and the base members may be mounted on castors 31, and connected by rails 8 to carry shoes. A tray 10 with a recess lined with felt is mounted on the rail 9 for holding cuff-links, &c. A rail 19. is also mounted on the rail 9 in spaced and parallel relationship therewith to hold a wallet. An arm 29 is hinged to the upright 4 to carry trousers and two opposed rods 13. 14 are slidably mounted in uprights 4 and 5. The rods carry knobs 17. and their ends 16, and bent to prevent removal. They are designed to carry ties, and the rail 30 may carry shirts, underclothes &c.
Patent GB-1174754-A (GB)
Title: Oxetane Derivatives
Inventor: KABBE HANS-JOACHIM
IPC: C07D305/10
Filed: 1968-04-04
Abstract: 1,174,754. Oxetane derivatives. FARBENFABRIKEN BAYER A.G. 4 April, 1968 [7 April, 1967; 10 Nov., 1967; 2 Feb., 1968], No. 16167/68. Heading C2C. Oxetane derivatives of the general formula wherein R<SP>1</SP> and R<SP>2</SP>, which may be the same or different, are each hydrogen or an optionally substituted alkyl, alkenyl, alkoxycarbonyl, cycloalkyl, aryl or heterocyclic radical, or R<SP>1</SP> and R<SP>2</SP> together with the carbon atom to which they are attached, represent a carbocyclic or heterocyclic ring optionally comprising an N- alkyl or N-benzyl group, and R<SP>3</SP> represents an optionally substituted (where any substituent is not an amine or -NH- alkyl group) alkyl, alkenyl, aryl, cycloalkyl or heterocyclic radical, are prepared by reacting a carbonyl compound of formula R<SP>1</SP>COR<SP>2</SP> with an isonitrile of formula R<SP>3</SP>-NC, in the presence of a strong anhydrous Friedel-Crafts acid catalyst, and neutralizing the reaction product. The reaction is preferably carried out with stoichiometric quantities of reactants at a temperature from - 20‹ to + 100‹ C.
Patent GB-111139-A (GB)
Title: Improvements in or relating to Apparatus for the Manufacture of Caps or Bases for Incandescent Electric Lamps.
Inventor: SCOULAR JAMES ALEXANDER
IPC: H01J9/30
Filed: 1916-11-10
Abstract: 111,139. Scoular, J. A. Nov. 10, 1916. Caps.-A machine for inserting contacts in the moulds used in filling caps with insulating-material comprises supports for a mould and for a contact, and a tool which grips the contact by its securing-tongues, places it in engagement with registering-means in the mould, and then releases it. In the machine shown, the tool is double so as to insert both contacts at once. The contact blanks are in the form of continuous strips N, Fig. 3, fed by hand or autornatically towards each other through grooves in supports L, Figs. 1 and 3, clamped by a yoke 0. At each advance the leading blanks are lifted by hand over shoulders L<2> and then overhang the supports, with their rear edges against the shoulders. A bifurcated rod C, Figs. 1 and 5, having its ends shaped similarly to the bodies of the contacts, as shown in Fig. 6, moves down on to the upper faces of the leading contacts, and a stirrup B, split for elasticity, is then raised so as to bend up the tongues and grip them between the stirrup and the inner sides of the bifurcated rod C. Next, the stirrup and rod descend together and shear off the contacts from the strips. In the moulds M are pins M<1> which enter holes in the contacts and in the end of the bifurcated rod C. When the downward movement of the rod C is nearly completed, the stirrup B is arrested and the contacts are thus released. The stirrup B is supported by pins in grooves within a sleeve A, pivoted to a lever G attached by a short link G<1> to the frame of the machine. The bifurcated rod C, which is grooved to accommodate the stirrup B, also passes through the sleeve A, and both the rod and the stirrup are guided by a lower bearing E<2>. At its upper end, the rod C is reduced and enters a split socket on a square rod D sliding in a guide E. A clamp D' tightening the socket is pivoted to a lever F attached by a short link F<1> to the frame of the machine. A bell-crank J, actuated by hand and by an opposing spring, is connected to the lever F by a pivot J<1> and also by a pin and slot J<2>. The short arm of the bellcrank is connected by a pin and slot H' to a link H attached to the lever G supporting the stirrup. When the hand-lever J is depressed, the lever F descends with it until the bifurcated rod C is arrested by the contact blanks. Movement of the hand-lever J relatively to the lever F then causes the stirrup lever G to be raised to bend up the tongues, the levers F and G then descending together until the sleeve A carrying the stirrup is arrested by a part of the frame. Cams may be employed instead of levers. The machine may be used in conjunction with that described in Specification 111,138, [Class 39 (ii), Electric lamps, Incandescent].
Patent GB-402761-A (GB)
Title: Improvements in devices for measuring mean angular displacement between moving partsapplicable as torsion-meters
IPC: G03B31/04
Filed: 1933-06-06
Abstract: 402,761. Speedometers ; torsion meters. CAHEN, G. M., 89, Rue Erlanger, Paris. June 6, 1933, No. 16213. Convention date, June 6, 1932. [Classes 106 (ii) and 106 iii).] A measuring device for determining, at any moment, the mean angular displacement between two mechanical parts moving either synchronously or at proportional speeds, comprises two distributors driven by the moving parts which send current impulses into, for instance, a milliammeter first in one direction and then in the other, so that when the two parts are set in a reference position, the successive impulses are equal and opposite the instrument giving zero reading, and when the parts are displaced by a certain angle from the reference position the reading is a function of the displacement. One distributor, Fig. 3, comprises a commutator consisting of two conducting rings 1, 2 with associated brushes S<1>, S<2> connected to a source of current S and two rings of spaced insulated conducting strips 3, 4 alternately connected to the rings 1, 2 and associated with brushes M<1>, M<2>. This distributor may be as in Fig. 4 with a single series of strips 5 connected alternately to rings 1, 2 the brushes M<1>, M<2> being displaced by half the pitch. This commutator is mounted on one of the moving parts the brushes being stationary or vice versa. The second moving part carries the other distributor consisting of a conducting ring 6 and a ring of insulated sectors 7 the pitch of which equals the pitch of the ring carried by the first moving part if the rings are synchronous or is a multiple or sub-multiple in the ratio of the speeds of the two moving parts. Electrical connections are then made to the sectors 7 and ring 6 as in Figs. 3 or 4 by means of brushes C<1>, C<2>. The measuring apparatus M receives alternating impulses equal in magnitude but of opposite sign, the mean deflection being zero. On alteration of the relative position of the moving parts, the instrument M gives an indication, which is a measure of the change. If the rings are carried on the same shaft the brushes of one of the rings and those of the circuit breaker can be done away with. If the E.M.F. of the source S is constant and the instrument M is a voltmeter, the mechanical torque is indicated. If the E.M.F. be proportional to the angular velocity, i.e. derived from a magneto driven from the shaft, the voltmeter reading is proportional to the power transmitted. By using various electrical instruments indications proportional to power or torque or any function of power and the number of revolutions of the shaft-for instance the cube-may be obtained. These apparatus may be combined with tachometers and provided with two pointers so that propulsive efficiency may be indicated.